baxi_2011_1 by Admin Admin

Solutions for centralized heating systems installations

Index Luna Duo-tec MP 35 - 110kW

P. 3

Modular condensing generators (GMC)

Luna Platinum 12-32 kW

Power HT 45-150 kW

119

Power HT 230-320 KW

157

Luna SAT

187

Close examination: Water in heating system for housing applications

209

Solutions for centralized heating systems installations

Luna Duo-tec MP Technical chart Dimensions Diagrams Burner exchanger unit Wiring diagrams Wiring diagram for connection to an heating system Coxial flue system installation Coxial flue system accessories Dual flue system installation Dual flue system accessories Flexible ducting system accessories Electronics Programming, setting and digital control Remote control Single installation Single installation schemes Cascade installation Cascade installation schemes Hydraulic separators Condensate neutralizer kits Other accessories

P. 4 5 6 7 8 9 10 12 13 15 16 17 18 19 20 27 34 45 60 66 67

Luna Duo-tec MP 35-100 kW The range of high power wall-mounted boilers LUNA DUO-TEC MP consists of condensing heat generators for heating only, with power between 50 and 110 kW (at 50/30°C), plus a 35 kW power generator (80/60°C). The features of the range are high yields, high modulation ratio (1:9), modulating pump included in the hydraulic unit, simplicity of use and installation and a great number of accessories for individual and cascade installation. The main element and heart of these condensing boilers is the heat exchanger with combustion chamber and coil hydraulic system in AISI 316L stainless steel. The low water content in the exchanger means very limited thermal inertia and therefore a rapid response to the variations in thermal energy required by the system, while the stainless steel surfaces protect the exchanger from 1.35

1.50

1.60

1.70

1.90

1.110

Maximum heating heat input

34,8

46,3

56,6

66,9

87,4

104,9

Maximum heating heat output 80/60°C

33,8

102

Maximum heating heat output 50/30°C

36,6

48,6

59,4

70,2

91,8

110,2

Minimum heat output 80/60°C

6,1

7,2

9,4

11,4

Minimum heat output 50/30°C

5,4

6,6

7,8

10,3

12,4

Energetic efficiency 92/42/CEE

HHHH

Average efficiency ( DIN4702-T8)

109,8

Nominal efficiency 80/60°C

97,2

Nominal efficiency 50/30°C

105

Efficiency at 30%

107,6

107,3

107,4

lt/h

800

1000

1500

2000

2250

-5

Minimum flow on the exchanger Nox class (EN483) Minimum working temperature Water content

°C lt

Quantity of condensing

lt/h

2,5

4,1

5,5

7,3

9,2

11,1

Heating system max pressure

bar

Safety valve intervention pressure

bar

Regulation of water temperature in heating circuit

°C

25/80

Coaxial flue systm max length

10( ø80/125)

Dual flue system max lenght

60 ( ø80)

Maximum flue mass flow rate

kg/s

0,016

0,021

0,026

0,031

0,04

0,047

Minimum flue mass flow rate

kg/s

0,002

0,003

0,004

0,005

Maximum flue temperature

°C

Residual flue prevalence

200

270

320

370

Comburent air-flow at Qn

kg/s

3,7

4,9

7,1

9,3

11,1

Dimensions ( hxwxd)

766x450x377

766x450x505

952x600x584

Net weight

Type of gas

natural gas/LPG

180

190

210

275

320

Power consumption

Power consumption in stand-by way

Max lenght of the duct of the outdoor sensor

120

Noise ( 1 mt far from the boiler) Grade of protection

dBA

<45

IPX5D

Solutions for centralized heating systems installations risks of corrosion due to condensate. The modulating pump fully optimises the boiler’s yield, precisely adjusting capacity in order to obtain an optimal temperature difference between delivery and return. Lastly, the wide modulation range of the burner means that boiler power can be best adapted to the required thermal load. Adjustment of the various generator components is carried out by a digital PCB with latest generation double microprocessor, resulting in simple and reliable management of the boiler through a control panel with large LCD. As well as daily and weekly programming of heating and sanitary functions and the setting of climatic adjustment in accordance with the user’s criteria of comfort, the electronics system also permits easy integration with renewable energy heat generation plant by programming a series of regulating parameters with which the generator can be configured to optimise its performance in relation to the type of plant it will be working on. Further proof of the great flexibility of this range of boilers in highly diversified contexts.

Dimensions Luna Duo-tec 1.35-1.50-1.60-1.70

Luna Duo-tec 1.90-1.110

450 225

225

354,5

584 245,5

112

763

952

140

223

225

600

(A)

(A) 377 mm Mod.1.35-1.50-1.60 505 mm Mod. 1.70

S.C.

GAS M.R. R.R. S.C.

GAS

M.R.

R.R.

Gas inlet G ¾” Heating system flow (G1”) with cylinder connection option Heating system return (G1”) with cylinder connection option Condensing trap that can be installed on a ø 21 pipe

S.C.

GAS M.R. R.R. S.C.

GAS

M.R.

R.R.

Gas inlet G 1” Heating system flow (G1-G1/2”) with cylinder connection option Heating system return (G1-1/2”) with cylinder connection option Condensing trap that can be installed on a ø 21 pipe 5

Diagrams The following diagrams, over and above supplying a better definition of the plan of the plant, permit a more detailed analysis of how the generator behaves under different working conditions. The pump capacity-prevalence curve defines the dynamic characteristics of the BAXI circulator in the hydraulic unit. It is well known that the temperature of the return water has a direct influence on the performance of a condensation boiler. At very low temperatures there is better exploitation of the latent heat and consequently better boiler performance. The diagram shows the variations in performance as a ratio between the capacity and thermal power of the specified condensation generator in function of the boiler’s return temperature. The final diagram shows the trend of the generator fumes temperature in function of the return temperature. FLOW RATE/HEAD CURVE

FLOW RATE/HEAD CURVE

HEADHEAD (mH2O) (mH2O)

HEAD HEAD (mH2O)(mH2O)

FLOW RATE/HEAD CURVE

FLOW RATE (l/h)

FLOW RATE/HEAD CURVE

(mH2O) HEADHEAD (mH2O)

HEADHEAD (mH2O) (mH2O)

FLOW RATE/HEAD CURVE

FLOW RATE (l/h)

108 107 106 105 104 103 102 101 100 99 98 97

30% load 100% load

Return temperature of the system °C

FLUES TEMPERATURE ACCORDING TO THE RETURN TEMPERATURE

Flues temperature %

Efficiency of the boiler %

EFFICIENCY OF THE BOILER ACCORDING TO THE RETURN TEMPERATURE

75 70 65 60 55 50 45 40 35 30

100% load

30% load

Return temperature of the system °C

Solutions for centralized heating systems installations

Burner-exchanger unit The air-gas premix unit, the burner and the primary exchanger are the components that ensure high performances from these condensation heat generators. The premix unit is a new conception which, thanks to a new design and the double clapet technique, ensures that the burner constantly has an optimal air/gas ratio independently of the number of fan revs, keeping consumption to a minimum and always guaranteeing correct combustion and consequently a reduction in polluting emissions. On the same subject of energy saving and highest performances, this new component permits achievement of a modulation ratio of 1:9, giving the generator such great flexibility as to be adaptable to great variations in thermal load, as happens increasingly in new generation multifamily homes. In the range from 35 to 70 kW the stainless steel burner, through the internal diffuser and special micro-perforation on the cylindrical surface, achieves uniform distribution of the air/gas mixture independently of its length. In the power range of 90 to 110 kW the burner is in metal fibre. This produces a spread of very short flame for optimal heat radiation while minimising the formation of nitrogen oxides. In the range from 35 to 70 kW the primary exchanger, entirely in stainless steel, comprises one single burner/fumes chamber, which keeps the size of the generator down for high power and actually more versatile installations even in relatively restricted spaces. The two highest powered generators (90 and 110 kW) employ the dual chamber exchanger in stainless steel. The two cylindrical fume chambers set vertically (burner chamber and condensation chamber) contain the stainless steel coils that carry the primary circuit water. In the upper chamber the hot exhaust gases transfer heat to the plant return water in the coils, bringing about condensation of the fumes themselves and thus transferring the latent heat to the water, preheating it prior to its entry into the burner chamber. Luna Duo-tec MP 1.35 - 1.50 - 1.60 - 1.70

Luna Duo-tec MP 1.90 - 1.110 Flues outlet

Primary exchanger Primary exchanger

Burner

Condensation chamber

Burner

Coils Fan Mixer Chamber of the burner Coils

Venturi Group

Air - gas conveyor

Fan Mixer

Venturi Group

Air - gas conveyor 7

Wiring diagrams

The figure shows the hook-up diagram for the boiler PCB connectors. Sensors and functional components of the generator are controlled by the PCB to which they are connected by means of the internal connectors highlighted in the figure. Another 3 connectors accessible externally to the board are available for checking the devices servicing and regulating the thermal plant (pumps, outdoor sensor, room thermostat etc.).

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 C M N R G/V V B G Y P

Fuses Power supply 230 V Room Unit Heating delivery sensor Heating return sensor Pressure sensor Fume probe Sanitary water heater sensor Auxiliary sensor 1 Auxiliary sensor 2 External sensor Remote Control Boiler pump Flame detection electrode Switch on electrode Igniter Gas valve Safety thermostat 105째C Fan Heating circuit pump Sanitary water heater pump Blue Brown Black Red Yellow/Green Green White Grey Yellow Violet

Solutions for centralized heating systems installations Wiring diagram for connection to an heating system The boilers in the high power wall-mounted BAXI range are easily hooked up to a heating system and a sanitary water heater by means of the terminal blocks in the dashboard. The connections, with related diagram and instructions, are shown below. The pumps for the heating system (P1) and the sanitary hot water (P3) must be supplied in accordance with the diagram in the figure, inserting a relay between the boiler PCB and the pumps. The sanitary water circuit pump (P3), serving an external heater, must be connected to boiler Terminal Block M3 at terminals 4 and 5. It is always advisable to connect the sanitary circuit pump (P3) after a hydraulic separator (as shown in the figure). Connect the NTC probe for sanitary water precedence, supplied as an accessory, to terminals 9 and 10 of boiler Terminal Block M2. The sensitive element of the NTC probe must be inserted into the special housing in the heater. Regulation of the temperature of hot sanitary water and the selection of the time schedule programme can be carried out directly on the boiler control panel, as described in the manual supplied with the product. When the hydraulic separator is used, for installation of a recirculation pump on the ACS heater the following accessories are required: AGU 2.550, to be installed in the boiler dashboard.

Circulating pump

AGU 2.550

Coaxial flue system The installation of the boiler can be made easily and with flexibility thanks to the supplied accessories. The boiler is originally equipped for a coaxial flue system, vertical or horizontal. Through the dual flue duct, it is possible a dual flue system installation.

Max length flue tubes

For each 90° installed curve the max length decreases of

For each 45° installed curve the max length decreases of

Last diameter of the chimney

Last diameter of the external duct

Coaxial ø 110/160 mm

10m

0,5m

163mm

160mm

Vertical dual flue system

15m

0,5m

0,25m

163mm

110mm

Coaxial ø 85/125 mm

10m

0,5m

133mm

125mm

Vertical dual flue system

15m

0,5m

0,25m

133mm

80mm

Horizontal dual flue system

60m

0,5m

0,25m

80mm

Type of ducts

* 15 meters is the maximum length of flue system

Solutions for centralized heating systems installations

Coaxial flue system installation Examples of installation with horizontal flue system ø80/125 mm ( 1.35-1.50-1.60-1.70 kW) and ø110/160 mm ( 1.90/1.110 kW)

Lmax = 10 m

Lmax = 10m

L Lmax = 9 m L Lmax = 9 m Examples of installation with vertical flue system ø80/125 mm ( 1.35-1.50-1.60-1.70 kW) and ø110/160 mm ( 1.90/1.110 kW) The installation can be made both with pitched and flat roof using the chimney accessory and the special tile available as option

Lmax = 10 m Ø 80/125 mm

Lmax = 8 m Ø 80/125 mm

Lmax = 9 m Ø 80/125 mm

Coaxial flue system accessories Luna Duo-tec MP 1.35-1.50-1.60-1.70 Immagine

Descrizione

Codice

PP coaxial flue tube with terminal 80/125 L=1000 mm supplied with wind proof terminal and sealing collar

KHG 714088910 .

PP coaxial flue tube extension 80/125 L=1000 mm

KHG 714088511 .

PP coaxial flue tube extension 80/125 L=500 mm

KHG 714088610 .

PP coaxial 90° bend - 80/125

KHG 714088711 .

PP coaxial 45° bend - 80/125

KHG 714088811 .

PP vertical chimney terminal 80/125

KHG 714093510 .

Flat roof tile to be used with a vertical chimney terminal 80/125

KHG 714093610 .

Pitched roof tile to be used with a vertical chimney terminal 80/125; it is adjustable from 15° to 45°

KHG 714093710 .

Luna Duo-tec MP 1.90-1.110 Immagine

Descrizione

Codice

PP coaxial flue tube extension 110/160 L=1000 mm

KHG 714099810 .

PP coaxial flue tube extension 110/160 L=500 mm

KHG 714099710 .

PP coaxial 87° bend -110/160

KHG 714100010 .

PP coaxial 45° bend - 80/125

KHG 714099910 .

PP vertical chimney terminal 110/160

KHG 714100112 .

PP horizontal coaxial chimney 110/160

KHG 714100211 .

Flat roof tile to be used with a vertical chimney terminal 110/160

KHG 714104810 .

Pitched roof tile to be used with a vertical chimney terminal 110/160; it is adjustable from 15° to 45°

KHG 714104910 .

Solutions for centralized heating systems installations

Dual flue system installation This type of duct allows the discharge of flues that derives from the combustion both out of the building and in single flues. The intake of the comburent air can be made in zones which are different from those of the discharge The dual flue system accessory includes flue reduction and an intake connection .The gasket and the screws of the intake connection to be used are those taken before from the cap. The 90째 bend allows to connect the boiler to the flues discharge/intake in any direction thanks to the 360째 rotation possibility. It can be used as additional bend together with the flue or the 45째 bend.

Luna Duo-tec MP 1.35

225

226

140

144

Installation examples with horizontal dual flue system. The minimum slope of the flue discharge towards the boiler has to be 1 cm for each meter of length. Make sure that the flue discharge and air intake are well fixed on the wall..

L max=15 m

(L1 + L2) max = 60 m The air inlet has a maximum length of 15 meters.

Installation examples with vertical dual flue system

L max=15 m

L max=14 m

Solutions for centralized heating systems installations

Dual flue system accessories Picture

Description

Code

PP dual flue system Ø 80 it includes: flue reduction, intake connection

KHG 714089010 .

PP tube extension Ø 80 L=1000 mm

KHG 714059411 .

PP tube extension Ø 80 L=500 mm

KHG 714059910 .

PP 87° bend Ø 80

KHG 714059211 .

PP 45° bend Ø 80

KHG 714059311 .

Tube Ø 80 centring kit (pack of 5)

KHG 714037411 .

Clamp centring kit Ø 80

KHG 714106110 .

Tube Ø 80 supporting bracket (pack of 5)

KHG 714037310 .

Internal sealing collar Ø 80

KHG 714018510 .

External sealing collar Ø 80

KHG 714018411 .

Coaxial vertical chimney terminal 80/125

KHG 714093510 .

Dual flue tubes adapter for coaxial chimney

KHG 714093810 .

Flue terminal Ø 80

LSD 790000150 .

Dual flue terminal Ø 80

KHG 714010410 .

Flat roof tile Ø 125 to be used with a vertical chimney terminal

KHG 714093610 .

Pitched roof tile Ø 125 to be used with a vertical chimney terminal; it is adjustable from 15° to 45°

KHG 714093710 . 15

Flexible ducting system accessories Picture

Description

Code

PP flexible tube Ø 80 L= 1,5 m

KHG 714105710 .

PP flexible tube Ø 80 L= 20 m

KHG 714105810 .

PP 90° bend Ø 80 with supporting bracket and condensate drainings

KHG 714105910 .

PP 90° bend Ø 80 with supporting bracket

KHG 714106010 .

Flexible centring kit Ø 80 (pack of 3)

KHG 714106210 .

Triple lips gaskets kit Ø 80 (pack of 5)

KHG 714111210 .

Solutions for centralized heating systems installations

Electronics The whole range of LUNA DUO-TEC MP high power wall-mounted boilers are equipped with an extensive control panel: each key activates a specific function and the LCD simultaneously shows numbers and symbols indicating the functioning status, facilitating easy interpretation and immediate programming, adjustment and control of parameters. The boiler electronic PCB has been specially designed to run premixed condensation boilers and permits start-up, control and supervision of this kind of gas fired heat generator with view to obtaining best use of the burner for applications in the field of central heating and the generation of hot sanitary water. Indubitably the most important feature of this new generation of electronic boards is its ability to integrate different heat generation technologies through the use of small interface boards and by means of a communication protocol that allows dialogue among the various parts of the heating system. All the control, management and communications software (meaning the whole intelligent part of a heating system) resides in the boiler PCB, so the only interfaces needed for integration with other types of generator are hardware items such as extensions of connectors on the motherboard and, where required, an additional display (text knob) for the parameter programming of a complex heating system. Features: • double microprocessor: latest generation software for control of the generator, or also of a complete heating system. • management of primary circuit pump modulation by PWM controller • daily heating programme and generation of hot sanitary water • electronic thermometer • automatic troubleshooting: signalling and description of possible anomalies • incorporated climatic regulation (external probe available as optional) • automatic summer/winter changeover with external probe connected • preset for installation in cascade with control software included in the PCB • preset for installation in mixed systems (low and high temperature)

Boiler functioning information

Regulation of sanitary water temperature Temperature reduction

Regulation of sanitary water temperature Temperature increase Functioning mode Sanitary, Sanitary & Heating, Heating Only

Off, Reset, Exit menu/functions

Regulation of heating water temperature Temperature increase

Regulation of sanitary water temperature Temperature reduction Troubleshooting

Programming, setting and digital control Picture

Model

Code

Remote control

The room unit is an accessory for controlling the temperature of the space to be heated. It is not only a modulating climate controller, capable of adjusting the delivery temperature from the boiler to obtain the desired room temperature with greatest efficiency: it also functions as a programmer, setting heating system parameters. including boilers in cascade and various low temperature zones.

Accessory for management of mixed plant and solar manifolds (AGU 2.550)

With this accessory the device can run: heating circuits at different temperatures, solar plant and other specific applications (pools, sanitary recirculation pump etc.). This accessory can directly manage the circuit components (pump, temperature probe, mixer valve etc.) up to a maximum of 3 independent relay outlets, 2 temperature probes and 1 control inlet. Some predefined functions can be used

710034501 .

Bus interface kit (OCI345)

Interface OCI 345 is an electronic device that permits communication via bus (two cables) between boilers connected in cascade or between one boiler (or the boilers in cascade) and a mixed zone controller RVS46.

710025602 .

Use of the expansion module AVS75 means that a heating plant with max 16 boilers in cascade can be run, with separate storage for hot sanitary water where required. This accessory, connected to one of the boilers, can directly control the circuit components up to a max of 3 independent relay outlets, 2 inlet temperature probes, 1 connector for limit thermostat in HV and one control inlet (for example TA).

710503701 .

Outdoor sensor (QAC34)

The QAC34 Outdoor sensor is a temperature sensor which communicates to the boiler the temperature outside the dwelling so that the generator adapts the delivery temperature to the effective needs of heating the environment as set by the user.

710487301 .

Climate controller kit for mixed zones (RVS46)

Heat regulation control unit for piloting a mixed zone (usually low temperature). It can run a mixing valve, a pump and the delivery probe of the controlled zone. It can also exchange data with the boiler board by means of the connection bus.

Soon available

Accessory for management of plant with boilers installed in cascade. (AVS 75)

Description

710244202 . (wired) 710244302 . (wireless)

Solutions for centralized heating systems installations Remote control Remote control is a multifunctional accessory to control the temperature of the room to heat. It is a modulating climatic regulator that adjusts the flow temperature of the boiler to obtain the desired room temperature and the best efficiency. Setting times, it is possible to adjust the functioning of the heating circuit and DHW production Setting â&#x20AC;&#x153;Holidayâ&#x20AC;? it is possible to set specific periods of the boiler functioning when you are not at home. You can set specific function to adjust the gas valve and to control the cleanliness of the combustion flues. In case of anomaly it shows the error code of the anomaly and a short description In case of cascade installations, the remote control allows to set and show parameters of the cascade system. This is not possible through the control panel for Luna Duo-tec MP range of boilers so it is necessary to use this accessory in high efficiency condensing applications. This accessory can be installed in a separate room, that can be far from the installation place of the generator allowing an easier control. A wireless version of the remote control is available as well, when the extension of connection cables is difficult.

Heating zones Sanitary function ON Automatic heating functioning 2 heating temperatures comfort/ reduced

Heating programming time Sanitary programming time

Data transmission ( with wireless transmission)

Comfort room temperature

Outdoor temperature

Room temperature

Boiler pressure/ heating circuit

Date: day, month, year, timing

Complete menu

Easy menu 1 Standby/operation 2 Hot water boost 3 Central heating mode 4 Room temperature 5 Hot water mode 6 Hot water temperature set-point

9 Navigation knob/menu regulation/programming

1 Information 2 Set time and date 3 Operator unit 4 Time central heating 1 5 Time central heating 3 6 Time hot water 7 Time auxiliary 8 Holiday heating 9 Temps / mode 10 Temps / mode hot water 11 Instantaneous HW heater 12 Error 13 Diagnostics heat generation 19

Single installation

Luna Duo-tec MP 1.35-1.50-1.60-1.70

Boiler-manifolds connection kit

Expansion tank connection kit

Manifold insulation kit for a boiler

Flanges and gasket kit * The hydraulic separator is handled as a separate accessory

Delivery-return-gas manifolds kit for individual boiler

Mainfold hydraulic kit for hydraulic separator

Solutions for centralized heating systems installations

Installation Kit Boiler-manifolds connection kit Models Luna Duo-tec MP

35-50-60-70 kW

Code

Kit consisting of:

Soon available

• gas manifold hook-up with cock • shutoff valve 3 way in delivery G1-1/4” • shutoff valve 2 way on return G1-1/4” • cap g1-1/4” and gaskets • check valve nipples G1-1/4 • expansion tank connector

Expansion tank connection kit Models Luna Duo-tec MP

Code

Kit consisting of:

35-50-60-70 kW

710583801 .

• boiler-expansion tank connection pipe • expansion tank 10 litres • expansion tank support brackets

Gas delivery-return kit for individual boiler Models Luna Duo-tec MP

Code

Kit consisting of:

35-50-60-70 kW

710577501 .

• gas manifold 2” • delivery manifold 3” DN80 PN6 • return manifold 3” DN80 PN6

Manifold insulation kit for one boiler Models Luna Duo-tec MP

Code

Kit consisting of:

35-50-60-70 kW

710587001 .

• insulation kit for individual boiler flow/return manifolds

Models Luna Duo-tec MP

Code

Kit consisting of:

35-50-60-70 kW

710582701 .

• flanges and gaskets for completion of installation

Flanges and gasket kit

Mainfold hydraulic kit for hydraulic separator Models Luna Duo-tec MP Code Manifold for separator 8,5 m /h

Soon available

Manifold for separator 18 m3/h

Soon available

Manifold for separator 28 m3/h

Soon available

Manifold ins. kit for separator 8,5 m3/h

Soon available

Manifold ins. kit for separator 18 m /h

Soon available

Manifold ins. kit for separator 28 m3/h

Soon available

Kit consisting of: • flow/return manifolds to separator

• Insulation kit for flow/return manifolds of connection between boilers and hydraulic separators

Single installation

Luna Duo-tec MP 1.90-1.110

Boiler-manifolds connection kit

Expansion tank connection kit

Manifold insulation kit for a boiler

Flange and gasket kit * The hydraulic separator is handled as a separate accessory

Delivery-return-gas manifolds kit for individual boiler

Solutions for centralized heating systems installations

Installation kit Boiler-manifolds connection kit Models Luna Duo-tec MP

90-110 kW

Code

Kit consisting of:

Soon available

Expansion tank connection kit Models Luna Duo-tec MP

Code

Kit consisting of:

90-110 kW

710583801 .

• boiler-expansion tank connection pipe • expansion tank 10 litres expansion tank support brackets

Gas delivery-return manifold kit for individual boiler Models Luna Duo-tec MP

Code

Kit consisting of:

90-110 kW

710584601 .

• gas manifold 2” • delivery manifold 3” DN80 PN6 • return manifold 3” DN80 PN6

Manifold insulation kit for individual boiler Models Luna Duo-tec MP

Code

Kit consisting of:

90-110 kW

710587801 .

• insulation kit for individual boiler flow/return manifolds

Models Luna Duo-tec MP

Code

Kit consisting of:

90-110 kW

710582701 .

• flanges and gaskets for completion of installation

Flanges and gasket kit

Mainfold hydraulic kit for hydraulic separator Models Luna Duo-tec MP

Code

Manifold for separator 8,5 m /h

Soon available

Manifold for separator 18 m3/h

Soon available

Kit consisting of: • flow/return manifolds towards the separator

Soon available

Manifold for separator 28 m3/h Manifold ins. kit for separator 8,5 m /h

Soon available

Manifold ins. kit for separator 18 m3/h

Soon available

Manifold ins. kit for separator 28 m3/h

Soon available

• insulation kit for flow/return connection manifolds between the boilers and hydraulic separators

Dimensions Luna Duo-tec 1.35-1.50-1.60-1.70 229 229

5353

450 450

1866 1866

9 9

511 511

220 220 160 160

1919 1919

9 9

213 213

Dimensions Luna Duo-tec 1.90-1.110 115 115

110 110

600 600

213 213

511

220 220

160 160

2052 2052

2162 2162

9 9

Solutions for centralized heating systems installations Connection of extension module AGU2.550 With extension module AGU2.550 the heater can manage either a mixed zone, controlling the mixer valve, zone probe and pump, or a solar plant by means of the probes on the manifold, heater and solar pump. This accessory is installed in the boiler dashboard. You must remove cover A from dashboard B. Raise dashboard B and hook up the flat cable between connector X50 of accessory AGU2.550 and connector X41 of the boiler board, passing through the hole in dashboard B. Close dashboard B and insert the AGU2.550. Carry out the electrical hook-ups necessary for installation and fix the new cover C found in the pack.

Connection of expansion module AVS75 Expansion module AVS75 is a device which, in a heating system run with LUNA DUO-TEC MP boilers, supplies several programmable inlets/outlets necessary to complete the heating system. As for individual installations, the module AVS75 can supply the boiler with the inlets/outlets necessary for management of a mixed zone or, alternatively, a solar plant. The accessory is connected to the cascade of LUNA DUO-TEC MP boilers by means of a local bus through which the information regarding the devices connected is received and transmitted. For each individual boiler a maximum of three expansion modules can be installed, one of which is the accessory AGU2.550 and the other two AVS75 for the management of a maximum of three mixed zones. When it is used for management of mixed zones the AVS75 requires the presence of a Remote Control (see relevant section on page 19) for programming the zone control parameters. In this case the Remote Control may also be used as an room sensor for the mixed zone.

M H2 M BX22 M BX21

L QX22

X50

T N

3 X30

N QX21

EX21 FX23 L QX23

Flow sensor QAD36 Mixing valve Mixed zone pump Safety thermostat

A B C D

B L

230V

In the case of a mixed zone, hook up the safety thermostat between the “FX23-L” terminals and jump the terminals “EX21-FX23”. In this way the circuit pump connected to relay “QX23” is internally connected in series with the safety thermostat. Should it be necessary to use relay outlet “QX23” for functions other than those envisaged for the mixed zone, jump terminals “FX23-L”.

The AVS75 may also be used to manage solar plant by means of the boiler. In this case the connections supplied by the expansion module (AVS75) are the two inlets related to the probe on the manifolds and to the probe on the heater, whereas the outlet regards control of the solar pump (see figure). A B C

Tank sensor (suppllied as optional) Collectors sensor (suppllied as optional) Solar circuit pump (suppllied as optional)

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

°C TERMOMETRO

100

120

SYSTEM MADE OF 1 HIGH EFFICIENCY CONDENSING BOILER LUNA DUO-TEC MP, 1 DIRECT HIGH TEMPERATURE CIRCUIT, 1 CIRCUIT FOR THE TANK LOAD WITH SOLAR INTEGRATION OPTION

mmH2O

mbar

Manometro

1 High efficiency condensing boiler DUO-TEC MP 2 Delivery - return-gas manifolds kit for individual boiler 3 Flue tubes for individual boiler 4 Hydraulic separator 5 Outdoor sensor QAC34 6 DHW sensor 7 Double coil storage tank ( DC) integration with solar systems (option) 8 Safety device ISPESL ( available as optional)

Solutions for centralized heating systems installations

Single installation schemes

Plant with high power condensation boiler Luna Duo-tec MP – 1 direct high temperature circuit – 1 ACS heater load circuit with solar integration If the solar heater load circuit is managed by the boiler then it is necessary to house a module AGU2.550 in the control dashboard. This module implements management of the solar load circuit. Connections of the probes (heater and solar manifold) and the solar load pump are carried out as per the diagram in the figure.

Solar heater probe B31 (BX22-M)

Solar manifold probe B6 (BX21-M)

Solar circuit pump Q5 (QX23-N)

Heater probe B3 - terminal board M2 (9-10) in boiler

High temperature zone pump:

terminals 6-7 of terminal board of boiler M3

Heater load pump (boiler side):

terminals 4-5 of terminal board of boiler M3

Heater probe :

terminals 9-10 of terminal board M2 of boiler

Set the following parameters from the control panel: MENU

PROGRAMME LINE

DESCRIPTION

CONFIGURATION

6020

Enabling of solar function

The parameters that may be used are shown below. In the case of solar panels with vacuum tubes, activate the specific protection function (parameters 3830, 3831) MENU

CONFIGURATION

PROGRAMME LINE

VALUE

DESCRIPTION

3810

Default 8 °C

Difference in temperature between manifold and heater solar probe for solar pump activation

3811

Default 4 °C

Difference in temperature between manifold and heater solar probe for solar pump switch-off

3850

Default "---"

Temperature above which the manifold pump circulates (only if the maximum heater temperature is not reached)

3830

Default "---"

Maximum solar pump block time if manifold temperature reaches maximum value (parameter 3850) in the minimum circulation time (parameter 3831)

3831

Default 30s

Manifold pump minimum circulation time

Access menu 3 SOLAR

mmH2O

mbar

Manometro

AGU2.550

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C

100

120

QAD

TERMOMETRO

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

Manometro bar

°C TERMOMETRO

100

120

SYSTEM MADE OF 1 HIGH EFFICIENCY CONDENSING BOILER LUNA DUO-TEC MP, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOW TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT

1 High efficiency condensing boiler DUO-TEC MP 2 Safety device ISPESL ( available as optional) 3 Hydraulic separator 4 Outdoor sensor QAC34 5 Module AGU 2.550 6 Flow/return contact sensor 7 DHW sensor 8 Double coil storage tank ( DC) integration with solar systems (option) 9 Thermostatic mixer

Solutions for centralized heating systems installations

Single installation schemes

Plant with high power condensation boiler Luna Duo-tec MP – 1 direct high temperature circuit – 1 low temperature mixed circuit – 1 DHW heater load circuit In this case an additional module AGU2.550 is required for management of the mixed zone. The accessory AGU2.550 is installed in the boiler dashboard. The connections of the delivery sensor, the mixer valve and the low temperature circuit pump are carried out as per the diagram in the figure.

Outdoor sensor - terminal board M2 (4-5) of boiler

Low temperature zone mixer valve (QX21-N-QX22)

Low temperature circuit pump (QX23-N)

Low temperature circuit probe (BX21-M)

Safety termostat (12V) low temperature circuit (H2-M)

Room unit - terminal boardM2 of boiler

High temperature zone pump:

terminals 6-7 of terminal board of boiler M3

Heater load pump:

terminals 4-5 of terminal board of boiler M3

Heater probe :

terminals 9-10 of terminal board M2 of boiler

Connect the safety thermostat, for protection of the low temperature circuit, to input H2 (H2-M) of accessory AGU 2.550. Using the remote control, enter menu 2, and carry out the following settings:

CONFIGURATION

HEATING CIRCUIT 1

PROGRAMME LINE

VALUE TO SET

5715

5977

Amb. thermostat. CR2

6020

Heating circuit 1

6046

Block heat production

742

---

834

Default 180 s

DESCRIPTION Enabling of heating circuit 2 Enabling of thermostat for circuit 2(terminal board M1 (1-2) in boiler) Enabling of low temperature zone Inlet H2 enabled as protection of low temperature zone Enabling of modular delivery temperature (low temperature zone) Mixer valve closure time

The room unit can directly control the low temperature zone in function of the surrounding temperature desired. If on turning knob B the display shows boiler delivery temperature instead of surrounding temperature it means that parameter 742 has not been set correctly.

AGU2.550

5 20

°C TERMOMETRO

100

120

100

120

7 6

Allo scarico

8 AVS75

°C

100

120

QAD

TERMOMETRO

°C TERMOMETRO

100

120

AVS75

All'impianto di Riscaldamento

°C

100

120

QAD

TERMOMETRO

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

Alle Utenze

SYSTEM MADE OF 1 HIGH EFFICIENCY CONDENSING BOILER LUNA DUO-TEC MP, 1 TANK IN TANK CYLINDER FOR INTEGRATION ON HEATING AND DHW PRODUCTION

Rampa GAS G2"

°C TERMOMETRO

0 04

C°

ORTEMOMRET

C°

ORTEMOMRET

UBTT 1000

0 04

001

021

001

C° 06

0 04 ORTEMOMRET

C°

ORTEMOMRET

08 021

001

021

021 001

1 High efficiency condensing boiler DUO-TEC MP 2 Delivery - return-gas manifolds kit for individual boiler 3 Flue tubes for individual boiler 4 Safety device ISPESL ( available as optional) 5 Hydraulic separator 6 Tank-in tank cylinder UBTT 1000 7 DHW sensor 8 AVS75 Module 9 AGU 2500 Module 10 Tank sensor 11 Circulating group 12 Collectors sensor 13 Automatic air-vent 14 Solar collectors SB 25

Solutions for centralized heating systems installations

Single installation schemes

Plant with high power condensation boiler Luna Duo-tec MP – 2 low temperature mixed circuits – 1 DHW heater load circuit with solar integration In this case three additional modules are necessary (one AGU2.550 and two AVS75s): one is for managing the heater solar load circuit and the others for management of the mixed zones. In our example we shall consider accessory AGU2.550 for management of the solar manifolds and the two AVS75s for management of the two mixed zones. Accessory AGU2.550 is installed in the boiler dashboard. Accessories AVS75 are installed external to the boiler, preferably in an electrical switchboard. Connections of the probes (heater and solar manifold) and of the solar load pump to accessory AGU2.550 are carried out as per the diagram in the figure.

Set the following parameters from the control panel: MENU

PROGRAMME LINE

DESCRIPTION

CONFIGURATION

6020

Enabling of solar function

The parameters that may be used are shown below. In the case of solar panels with vacuum tubes, activate the specific protection function (parameters 3830, 3831) MENU

CONFIGURATION

PROGRAMME LINE

VALUE

DESCRIPTION

3810

Default 8 °C

Difference in temperature between manifold and heater solar probe for solar pump activation

3811

Default 4 °C

Difference in temperature between manifold and heater solar probe for solar pump switch-off

3850

Default "---"

Temperature above which the manifold pump circulates (only if the maximum heater temperature is not reached)

3830

Default "---"

Maximum solar pump block time if manifold temperature reaches maximum value (parameter 3850) in the minimum circulation time (parameter 3831)

3831

Default 30s

Manifold pump minimum circulation time

Access menu 3 SOLAR

Solutions for centralized heating systems installations The connections of the flow sensor, mixer valve and the low temperature circuit pump on the AVS75 are made according to the diagram shown.

EX21 FX23 L QX23

M H2 M BX22 M BX21

L QX22

X50

T N

3 X30

N QX21

B L

230V A Mixer valve low temperature zone (QX21-N-QX22) B

Low temperature circuit pump (QX23-N)

C Low temperature circuit sensor (BX21-M) D Low temperature safety thermostat (FX23-L)

Use the control panel to enter menu 2 and set as follows: MENU

CONFIGURATION

HEATING CIRCUIT 1

CONFIGURATION

HEATING CIRCUIT 2

PROGRAMME LINE 5715 5977 6021

VALUE TO SET On Room thermostat CR2 Heating circuit 1

6026

Safety thermostat CR

6054

Block heat production

742

---

834 6022

Default 180 s Heating circuit 2

6028

Safety thermostat CR

6062

Block heat production

1042 Default 180 s

DESCRIPTION Enable heating circuit 2 NO ENABLING Enable low temperature zone EX21 input enabled as protection of low temperature zone H2 input enabled as protection of low temperature zone Enable modular flow temperature (low temperature zone) Closure time of mixer valve Enable low temperature zone EX21 input enabled as protection of low temperature zone H2 input enabled as protection of low temperature zone Enable modular flow temperature (low temperature zone) Closure time of mixer valve

On the two Room Units: Parameter 40 on Room Unit 1: used as Room Unit 1 Parameter 40 on Room Unit 2: used as Room Unit 2 Boiler pressure pump (boiler side): Boiler sensor:

terminals 4-5 of the boiler terminal board M3 terminals 9-10 of the boiler terminal board M2

SET THE ADRESS OF THE SECOND AND THIRD EXTENSION MODULE CORRECTLY USING THE DIP SWITCH

Cascade installation Luna Duo-tec MP da 1.35 a 1.110

Boiler-manifolds connection kit

Expansion tank connection kit

Manifolds connector kit

TUBO COLLEGAMENTO COLLETTORI GAS

Delivery-return-gas manifolds kit for individual boiler

Mainfold hydraulic kit for hydraulic separator

Delivery - return - gas mainfolds for 2 boilers

Solutions for centralized heating systems installations List of hydraulic accessories, boilers in cascade: Cascade of 2 boilers of 35-70 kW Quantity Description

Code

n.1

Gas delivery/return manifolds kit for 2 boilers

710577701 .

n.2

Expansion tank connection kit from 35 to 70 kW

710583801 .

n.2

Boiler-manifolds connection kit from 35 to 70 kW

Soon available

n.1

Insulation kit for two boilers from 35 to 70 kW

710587501 .

n.1

Flange and gasket kit

710582701 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64

Cascade of 2 boilers of 90-110 kW Quantity Description

Code

n.1

Gas delivery/return manifolds kit for 2 boilers

710584901 .

n.2

Expansion tank connection kit from 90 to 110 kW

710583801 .

n.2

Boiler-manifolds connection kit from 90 to 110 kW

Soon available

n.1

Insulation kit for two boilers from 90 to 110 kW

710588501 .

n.1

Flange and gasket kit

710582701 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64

Cascade of 3 boilers of 35-70 kW Quantity Description

Code

n.1

Gas delivery/return manifolds kit for 2 boilers

710577701 .

n.3

Expansion tank connection kit from 35 to 70 kW

710583801 .

n.1

Gas delivery/return manifolds kit for 1 boiler

710577501 .

n.3

Boiler-manifolds connection kit from 35 to 70 kW

Soon available

n.1

Insulation kit for two boilers from 35 to 70 kW

710587501 .

n.1

Flange and gasket kit

710582701 .

n.1

Manifolds connection kit

710583201 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64

Cascade of 3 boilers of 90-110 kW Quantity Description

Code

n.1

Gas delivery/return manifolds kit for 2 boilers

710584901 .

n.3

Expansion tank connection kit from 90 to 110 kW

710583801 .

n.1

Gas delivery/return manifolds kit for 1 boiler

710584601 .

n.3

Boiler-manifolds connection kit from 90 to 110 kW

Soon available

n.1

Insulation kit for two boilers from 90 to 110 kW

710588501 .

n.1

Flange and gasket kit

710582701 .

n.1

Manifolds connection kit

710583201 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64 35

List of hydraulic accessories, boilers in cascade: Cascade of 4 boilers of 35-70 kW Quantity Description

Code

n.2

Gas delivery/return manifolds kit for 2 boilers

710577701 .

n.4

Expansion tank connection kit from 35 to 70 kW

710583801 .

n.4

Boiler-manifolds connection kit from 35 to 70 kW

Soon available

n.1

Insulation kit for two boilers from 35 to 70 kW

710587501 .

n.1

Flange and gasket kit

710582701 .

n.1

Manifolds connection kit

710583201 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64

Cascade of 4 boilers of 90-110 kW Quantity Description

Code

n.2

Gas delivery/return manifolds kit for 2 boilers

710584901 .

n.4

Expansion tank connection kit from 90 to 110 kW

710583801 .

n.4

Boiler-manifolds connection kit from 90 to 110 kW

Soon available

n.1

Insulation kit for two boilers from 90 to 110 kW

710588501 .

n.1

Flange and gasket kit

710582701 .

n.1

Manifolds connection kit

710583201 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64

Cascade of 5 boilers of 35-70 kW Quantity Description

Code

n.2

Gas delivery/return manifolds kit for 2 boilers

710577701 .

n.1

Gas delivery/return manifolds kit for 1 boiler

710577501 .

n.5

Expansion tank connection kit from 35 to 70 kW

710583801 .

n.5

Boiler-manifolds connection kit from 35 to 70 kW

Soon available

n.1

Insulation kit for two boilers from 35 to 70 kW

710587501 .

n.1

Flange and gasket kit

710582701 .

n.2

Manifolds connection kit

710583201 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64

Cascade of 5 boilers of 90-110 kW Quantity Description

Code

n.2

Gas delivery/return manifolds kit for 2 boilers

710584901 .

n.1

Gas delivery/return manifolds kit for 1 boiler

710584601 .

n.5

Expansion tank connection kit from 90 to 110 kW

710583801 .

n.5

Boiler-manifolds connection kit from 90 to 110 kW

Soon available

n.1

Insulation kit for two boilers from 90 to 110 kW

710588501 .

n.1

Flange and gasket kit

710582701 .

n.2

Manifolds connection kit

710583201 .

n.1

Manifold kit for hydraulic separator

See relevant section on page 64

Solutions for centralized heating systems installations

Dimensions * Luna Duo-tec MP 1.35 - 1.50 - 1.60 - 1.70

511

220

160

1919 1866

470

Dimensions * Luna Duo-tec MP 1.90 - 1.110

511

220

160

1919 1866

470

(*) –flanged delivery-return hydraulic manifolds, diameter 3” with flange DN80 PN6 -2” gas manifold, threaded internally 37

Dimensions * Luna Duo-tec MP 1.35 - 1.50 - 1.60 - 1.70

Dimensions * Luna Duo-tec MP 1.90 - 1.110

(*) –flanged delivery-return hydraulic manifolds, diameter 3” with flange DN80 PN6 -2” gas manifold, threaded internally 38

Solutions for centralized heating systems installations How to calculate the diameter of the fumes manifold (A) and the flue (B) The table on the following page shows the diameters of the fumes manifold and the flue for various configurations of boilers in cascade and for various heights of flue.

Overview • Distance of the fumes manifold from the first boiler to the vertical flue 2 metres • Fumes shutter installed on each boiler in cascade • The flue tubes and connections between the fumes manifold of the cascade and the flue are not supplied by BAXI • Manifolds in cascade over 200 mm in diameter are not supplied by BAXI • These figures were calculated based on a polypropylene “dual wall” fumes manifold for the flue

N° Boilers in cascade

HT 1.50

HT 1.60

HT 1.70

HT 1.90

HT 1.110

Nominal Thermal Power Total 80°/60° C (kW)

100

120

140

180

220

Fume manifold Ø mm (A)

125

160

Flue Ø mm (B) -H= 5-10 m

125

160

Flue Ø mm (B) -H=10-15 m

125

160

Flue Ø mm (B) -H=15-20 m

125

160

Nominal Thermal Power Total 80°/60° C (kW)

150

180

210

270

330

Fume manifold Ø mm (A)

125

160

Flue Ø mm (B) -H= 5-10 m

125

160

Flue Ø mm (B) -H=10-15 m

125

160

Flue Ø mm (B) -H=15-20 m

125

160

Nominal Thermal Power Total 80°/60° C (kW)

200

240

280

360

440

Fume manifold Ø mm (A)

125

160

200

Flue Ø mm (B) -H= 5-10 m

160

200

Flue Ø mm (B) -H=10-15 m

160

200

Flue Ø mm (B) -H=15-20 m

160

200

Nominal Thermal Power Total 80°/60° C (kW)

250

300

350

450

550

Fume manifold Ø mm (A)

160

200

Flue Ø mm (B) -H= 5-10 m

160

200

Flue Ø mm (B) -H=10-15 m

160

200

Flue Ø mm (B) -H=15-20 m

160

200

Nominal Thermal Power Total 80°/60° C (kW)

300

360

400

540

660

Fume manifold Ø mm (A)

160

200

Flue Ø mm (B) -H= 5-10 m

160

200

250

Flue Ø mm (B) -H=10-15 m

160

200

250

Flue Ø mm (B) -H=15-20 m

160

200

250

Solutions for centralized heating systems installations Connection of the interface bus for boilers in cascade (OCI345) The interface bus OCI345 is an electronic device enabling communication with and therefore the management of boilers in cascade. Thus used, the communication bus also permits remote monitoring and management of the cascade. The interface bus slot is inside the control panel of each boiler in the cascade. There are two possible positions of the accessory inside the panel: 1. If the extension module AGU2.550 has not already been installed in the boiler then remove the protective cover on the back of the command panel on the boiler, place the OCI345 interface in the relative slot and , once the boiler 's electronic circuit has been turned on, connect the interface using the cable provided to the connector of the electronic circuit X30.

OCI 345 LPB BUS

X30

2- If the extension module AGU2.550 has already been installed in the boiler then access the electronic circuit by removing the protective cover on the panel and slot in the OCI345 interface as illustrated below making sure to connect the cable provided to the connector of the electronic circuit X30.

X30

LPB BUS

OCI 345

Connection of extension module AGU2.550 With extension module AGU2.550 the heater can manage either a mixed zone, controlling the mixer valve, zone probe and pump, or a solar plant by means of the probes on the manifold, heater and solar pump. This accessory is installed in the boiler dashboard. You must remove cover A from dashboard B. Raise dashboard B and hook up the flat cable between connector X50 of accessory AGU2.550 and connector X41 of the boiler board, passing through the hole in dashboard B. Close dashboard B and insert the AGU2.550. Carry out the electrical hook-ups necessary for installation and fix the new cover C found in the pack.

Solutions for centralized heating systems installations Connection of expansion module AVS75 Expansion module AVS75 is a device which, in a heating system run with LUNA DUO-TEC MP boilers, supplies several programmable inlets/outlets necessary to complete the heating system. As for cascade systems, the module AVS75 allows connection of a cascade pump (output side) downstream of the hydraulic separator, a loading pump for hot sanitary water storage and, where required, an ambiance thermostat and probes for delivery (usually downstream of the hydraulic separator) and for return (usually upstream) of the cascade. The AVS75 can also supply another programmable outlet at 230V for plant necessities. The accessory is connected to the cascade of LUNA DUO-TEC MP boilers by means of a local bus through which the information regarding the devices connected is received and transmitted. Programming of parameters regarding the cascade of boilers is carried out by means of the remote control to be installed externally (see remote control kit on page 19).

1 2 3 C

EX21 FX23 L QX23

L QX22

N QX21

AVS 75

M H2 M BX22 M BX21

ON 1

X50

3 X30

M1 230V

KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75 Not used for cascades

S (QX23-L9

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supply CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M) M

CASCADE DELIVERY PROBE inlet

X50

3 X30

Common sensor earth 43

M H2 M BX22 M BX21

L QX22

X50

T N

3 X30

N QX21

EX21 FX23 L QX23

Flow sensor QAD36 Mixing valve Mixed zone pump Safety thermostat

A B C D

B L

230V

Tank sensor (supplied as optional) Collectors sensor (supplied as optional) Solar circuit pump (supplied as optional)

AVS75

OCI 345

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

SYSTEM MADE OF 2 HIGH EFFICIENCY CONDENSING BOILER LUNA DUO-TEC MP, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT ( SC)

mmH2O

mbar

Manometro

1 High efficiency condensing boilers DUO-TEC MP 2 Delivery-return-gas manifolds for 2 boilers 3 Flue tubes for two boilers 4 Flow-return sensor 5 Hydraulic separator 6 Outdoor sensor QAC34 7 Interface for cascade system (OCI 345) 8 AVS75 Module 9 Removable control panel 10 DHW sensor 11 Single coil (SC) tank 12 Safety device ISPESL ( available as optional)

°C TERMOMETRO

100

120

Solutions for centralized heating systems installations

Cascade installation schemes

Plant with two high power condensation boilers Luna Duo-tec MP in cascade – 1 high temperature direct circuit – 1 heater load circuit DHW For complete management of the cascade you must install Bus Module OCI345 (one in each boiler in cascade), an expansion module AVS75 external to the cascade and a Remote Control for programming all plant parameters. The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure. KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75 C

Not used for cascades

C (FX23-L)

Safety thermostat 230V not used for cascades

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supply CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M)

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

X50

3 X30

Common sensor earth

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER.

Solutions for centralized heating systems installations MASTER (main) boiler parameter configuration Using the control panel, access menu 3, and carry out the following settings. Menù

Programme line

Value

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Control of cascade return temperature

Configuration

6046

Ambiance thermostat CR1

Enabling of thermostat in inlet H2 of the AVS75

Configuration

6200

Si (*)

LPB

6630

Always

LPB

6640

Autonomous

Description Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature

Memorisation of modifications carried out Identification of master boiler Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

Parameter configuration on non-MASTER boiler Having configured he master boiler parameters as described in the previous paragraph, proceed to configuration of the other boilers. To this purpose, connect the Remote Control (if not already present) to the boiler to be configured and proceed as follows. The operations listed below are repeated for each boiler in the cascade, excluding the MASTER boiler. For correct system functioning an address must be assigned to each boiler so that it can be recognised by the master boiler (the master boiler has default =1). Moreover it is also necessary to synchronise the boiler clocks with that of the master boiler. Using the control panel, access menu 3, and carry out the following settings. Menù

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

Cascade

3541

First – Last – First and Last.

Description Enabling of thermostat for circuit 2(terminal board M1 (1-2) in boiler) Enabling unit AVS75 Setting cascade boiler clocks with master boiler Description Period of functioning before automatic change of sequence of main boiler. Exclusion of the boiler(s) from periodic rotation of sequence

After connecting the pump to the relay, set outlet QX22 as shown in the following table. Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of HSW storage on relay QX22

1 High efficiency condensing boilers LUNA DUO-TEC MP 2 Safety device ISPESL ( available as optional) 3 Flue tubes for two boilers 4 Flow/return contact sensor 5 Hydraulic separator 6 Outdoor sensor QAC34 7 Interface for cascade system (OCI 345) 8 AVS75 Module 9 Removable control panel 10 DHW sensor 11 Double coil storage tank ( DC) integration with solar systems (option) 12 Thermostatic mixer 13 Built-in heat boxes Luna Sat RH+2C

48 Manometro

AVS75

mbar mmH2O

OCI 345

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

°C TERMOMETRO

100

120

SYSTEM MADE OF 2 HIGH EFFICIENCY CONDENSING BOILERS LUNA DUO-TEC MP, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT WITH INTEGRATION WITH SOLAR SYSTEMS (OPTION) , BUILT-IN HEAT BOXES RH+2C

Cascade installation schemes

Solutions for centralized heating systems installations Plant with two high power condensation boilers Luna Duo-tec MP in cascade – 1 high temperature direct circuit – 1 heater load circuit DHW with solar integration For complete management of the cascade you must install Bus Module OCI345 (one in each boiler in cascade), an expansion module AVS75 external to the cascade and a Remote Control for programming all plant parameters. The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure. KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supply CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

ON 1

n (BX22-M)

Not used for cascades

X50

3 X30

Common sensor earth

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER.

MASTER boiler parameter configuration Using the control panel, access menu 3, and carry out the following settings. Menù

Riga di programma

Valore da impostare

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Configuration

6046

Ambiance thermostat CR1 Si (*)

Configuration

6200

LPB

6630

Always

6640

Autonomous

LPB

Descrizione Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature Control of cascade return temperature Enabling of thermostat in inlet H2 of the AVS75 Memorisation of modifications carried out Identification of master boiler Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

Parameter configuration on non-MASTERS boiler Having configured he master boiler parameters as described in the previous paragraph, proceed to configuration of the other boilers. To this purpose, connect the Remote Control (if not already present) to the boiler to be configured and proceed as follows. The operations listed below are repeated for each boiler in the cascade, excluding the MASTER boiler. For correct system functioning an address must be assigned to each boiler so that it can be recognised by the master boiler (the master boiler has default =1). Moreover it is also necessary to synchronise the boiler clocks with that of the master boiler. Using the control panel, access menu 3, and carry out the following settings. Menù

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

Cascade

3541

First – Last – First and Last.

After connecting the pump to the relay, set outlet QX22 as shown in the following table.

Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of HSW storage on relay QX22

Solutions for centralized heating systems installations For management of solar panels module AGU2.550 must be inserted in the master boiler dashboard. 1

Heater probe (supplied as accessory)

Panels probe (supplied as accessory)

Solar circuit pump

Using the Remote Control, access menu 2, and carry out the following settings: MENU

PROGRAMME LINE

CONFIGURATION

6021

DESCRIPTION Enabling of solar function

The parameters that may be used are shown below. In the case of solar panels with vacuum tubes, activate the specific protection function (parameters 3830, 3831). MENU

CONFIGURATION

PROGRAMME LINE

VALUE

DESCRIPTION

3810

Default 8 째C

Difference in temperature between manifold and heater solar probe for solar pump activation

3811

Default 4 째C

Difference in temperature between manifold and heater solar probe for solar pump switch-off

3850

Default "---"

Temperature above which the manifold pump circulates (only if the maximum heater temperature is not reached)

3830

Default "---"

Maximum solar pump block time if manifold temperature reaches maximum value (parameter 3850) in the minimum circulation time (parameter 3831)

3831

Default 30 s

Manifold pump minimum circulation time

Access menu 3

SOLAR

BE SURE TO SET THE EXPANSION MODULE DIP SWITCHES CORRECTLY

AVS75

OCI 345

QAD

Manometro

bar

째C TERMOMETRO

100

120

째C TERMOMETRO

100

120

TERMOMETRO

째C

100

120

TERMOMETRO

째C

100

120

SYSTEM MADE OF 3 HIGH EFFICIENCY CONDENSING BOILERS LUNA DUO-TEC MP, 1 HIGH TEMPERATURE DIRECT CIRCUIT, BUILT-IN HEAT BOXES LUNA SAT RS2Z

mmH2O

mbar

Manometro

bar

52 Manometro

1 High efficiency condensing boilers LUNA DUO-TEC MP 2 Manifold pipes three boilers in cascade 3 Flue pipes for two boiler 4 Flue pipes for the third boiler 5 Flow/return contact sensor 6 Hydraulic separator 7 Interface for cascade system (OCI 345) 8 Module AVS75 9 Removable control panel 10 Built-in heat boxes LUNA SAT RS2Z 11 Safety device ISPESL ( available as optional)

Cascade installation schemes

Solutions for centralized heating systems installations Plant with 3 high power condensing boilers Luna Duo-tec MP in cascade- 1 high temperature direct circuit- built-in heat boxes Luna Sat RS2Z For complete management of the cascade you must install Bus Module OCI345 (one in each boiler in cascade), an expansion module AVS75 external to the cascade and a Remote Control for programming all plant parameters. The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure. KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75

C (QX23-L)

Safety thermostat 230V, not used for cascades

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supplying CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL L-N)

Not used for cascades

Supply AVS 75

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (H2-M)

AMBIANCE THERMOSTAT connector

n (BX22-M)

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

X50

3 X30

Common sensor earth

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER.

MASTER (main) boiler parameter configuration Using the control panel, access menu 3, and carry out the following settings. Menù

Programme line

Value

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Control of cascade return temperature

Configuration

6046

Ambiance thermostat CR1

Enabling of thermostat in inlet H2 of the AVS75

Configuration

6200

Yes (*)

Memorisation of modifications carried out

LPB

6630

Always

Identification of master boiler

LPB

6640

Autonomous

Description Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature

Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

The pumps of the high temperature zones have to be connected one to each other and ,linked to the terminal of the expansion module AVS75 (through a relè) identified with QX21-N.

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

3541

First – Last – First and Last.

Cascade

After connecting the pump to the relay, set outlet QX22 as shown in the following table.

Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of HSW storage on relay QX22

mmH2O

mbar

Manometro

AVS75

OCI 345

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C

100

120

QAD

TERMOMETRO

°C TERMOMETRO

100

120

°C

100

120

QAD

TERMOMETRO

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

Manometro bar

°C TERMOMETRO

100

120

SYSTEM MADE OF 3 HIGH EFFICIENCY CONDENSING BOILERS LUNA DUO-TEC MP, 2 HIGH TEMPERATURE DIRECT CIRCUITS, 2 MIXED LOW TEMPERATURE CIRCUITS, 1 LOAD TANK CIRCUIT WITH INTEGRATION WITH SOLAR SYSTEMS (OPTION)

1 High efficiency condensing boilers LUNA DUO-TEC MP 2 Safety device ISPESL ( available as optional) 3 Flue tubes for two boilers 4 Flue tubes for the third boiler 5 Flow/return contact sensor 6 Hydraulic separator 7 Outdoor sensor QAC34 8 Interface for cascade system (OCI 345) 9 AVS75 Module 10 Removable control panel 11 DHW sensor 12 Double coil storage tank ( DC) integration with solar systems (option) 13 Thermostatic mixer 14 Manifolds for 3 boilers in cascade

Solutions for centralized heating systems installations

Cascade installation schemes

Plant with three high power condensation boilers Luna Duotec MP in cascade – 2 high temperature direct circuits – 2 mixed circuits and one heater load circuit HSW For complete management of the cascade you must install Bus Module OCI345 (one in each boiler in cascade), an expansion module AVS75 external to the cascade and a Remote Control for programming all plant parameters. The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure. KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75 C

Not used for cascades

C (FX23-L)

Safety thermostat 230V, not used for cascades

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supplying CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M)

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

X50

3 X30

Common sensor earth

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER.

Solutions for centralized heating systems installations MASTER (main) boiler parameter configuration Using the control panel, access menu 3, and carry out the following settings. Menù

Programme line

Value

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Control of cascade return temperature

Configuration

6046

Ambiance thermostat CR1

Enabling of thermostat in inlet H2 of the AVS75

Configuration

6200

Yes (*)

Memorisation of modifications carried out

LPB

6630

Always

Identification of master boiler

LPB

6640

Autonomous

Description Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature

Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

The pumps of the high temperature zones have to be connected one to each other and ,linked to the terminal of the expansion module AVS75 (through a relè) identified with QX21-N.

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

3541

First – Last – First and Last.

Cascade

After connecting the pump to the relay, set outlet QX22 as shown in the following table. Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of HSW storage on relay QX22

EX21 FX23 L QX23

M H2 M BX22 M BX21

L QX22

X50

T N

3 X30

N QX21

B L

230V A B C D

Delivery probe QAD36 Mixer valve Mixed zone pump Safety thermostat

In the case of a mixed zone connect the safety thermostat to terminals “FX23-L” and jump terminals “EX21-FX23”. In this way the circuit pump connected to relay “QX23” is internally connected in series with the safety thermostat. Should it be necessary to use the outlet of relay “QX23” for functions other than those envisaged for the mixed zone, jump the terminals “FX23-L”. MENU

PROGRAMME LINE

CONFIGURATION

6021

RVS46 A B C

DELIVERY PROBE QAD36 EXTERNAL PROBE REMOTE CONTROL ACCESSORY

DESCRIPTION Enabling heating circuit 2

D E F

ACCESSORY OCI 345 MIXER VALVE MIXED ZONE PUMP

Solutions for centralized heating systems installations In the case of a mixed zone connect the safety thermostat to terminals “FX23-L” and jump terminals “EX21-FX23”. In this way the circuit pump connected to relay “QX23” is internally connected in series with the safety thermostat. Should it be necessary to use the outlet of relay “QX23” for functions other than those envisaged for the mixed zone, jump the terminals “FX23-L”. Accessory

Parameter

Valve to set

RVS46

Heating circuit 1

741

< 45°C

Description Setpoint of maximum temperature for mixed zone

Note: BE SURE to set the address of the device correctly on the LPB. Boilers in cascade and the device RVS46 must have mutually different addresses (parameter N° 6600 of each boiler or device such as RVS46 present on the LPB). If the load circuit of the solar heater is managed by the boiler then a module AGU2.550 must be housed in the command dashboard. This module will implement management of the solar load circuit. The connections of the probes (heater and solar manifold) and of the solar load pump must be carried out as per the diagram in the figure. 1

Solar heater probe B31 (BX22-M)

Solar manifold probe B31 (BX22-M)

Solar circuit pump Q5 (QX23-N)

Heater probe B3 – terminal board M2 (9-10) in boiler

Heater load pump (boiler side):

terminals 4-5 of boiler terminal board M3

Heater probe (boiler side):

terminals 9-10 of boiler terminal board M2

Set the following parameters from the control panel: MENU

PROGRAMME LINE

CONFIGURATION

6022

DESCRIPTION Enabling of solar function.

The parameters that may be used are shown below. In the case of solar panels with vacuum tubes, activate the specific protection function (parameters 3830, 3831). MENU

CONFIGURATION

PROGRAMME LINE

VALUE

DESCRIPTION

3810

Default 8 °C

Difference in temperature between manifold and heater solar probe for solar pump activation

3811

Default 4 °C

Difference in temperature between manifold and heater solar probe for solar pump switch-off

3850

Default "---"

Temperature above which the manifold pump circulates (only if the maximum heater temperature is not reached)

3830

Default "---"

Minimum solar pump block time if manifold temperature reaches maximum value (parameter 3850) in the minimum circulation time (parameter 3831)

3831

Default 30 s

Manifold pump minimum circulation time.

Access menu 3

SOLAR

Hydraulic separator In traditional heating plant the secondary circuits, serving functioning of the ambiance terminals or an external heater for example, all set out from a common manifold that comes under the primary circuit of the heat generator. In this case the secondary plant pumps have considerable influence on the functioning of the primary plant pump. Reference is made to the following examples:

Non-working pumps

1 Working pumps

2 Working pumps

As you can see in the previous image when the number of DHW pumps that work simultaneously changes, the different pressure between the flow and return circuit of the primary circuit varies or the pressure that the primary pump has to win to make the water circulate from the flow collector to the return collector passing through the active DHW circuits

3 Working pumps

Solutions for centralized heating systems installations

Hydraulic separator The function of the hydraulic circuit breaker, as suggested by its name ( see the previous example) is to separate the heating circuit from the DHW circuit, making the functioning independent one from each other. The problems that can occur if this component is not used are the followings: • pumps that can not manage to provide the requested flow ( installation with different pumps, small and big) . This is the case of the small pumps that have to spend to much energies to face the opposite action of the bigger ones ( induced opposite ΔT) • pumps that burns ( interferences between circuits can push the pumps to work out of the optimal functioning range) • warm radiators also when the pump stops ( due to eddy currents developed by other active pumps) These phenomena are caused by natural circulation or circulation in the by-passes when the valves are switched off • functioning of the system for the most of time in different conditions from those established during the project, that means in the best conditions Usually ΔP is supposed to be an index to evaluate the interference between the circuits. It is, anyway, possible to fix the minimum ΔP acceptable value, that means minimum values in which the interference between circuits does not causes clear functioning anomalies, as these values depends from too many variables. The following rule is acceptable :

ΔP<0,4+0,5 mca

Interposing the hydraulic circuit breaker between the heating circuit and the circuit that includes collectors and secondary parts of the system the ΔP between return and flow becomes equal to the resistance to the flow of the hydraulic circuit breaker , which is unimportant. Then this value is constant and independent from the number of secondary pumps that function simultaneously in a specific moment.

Changing in the temperature due to the hydraulic circuit breaker This phenomenon is caused by the important mixing activities of the outputs between flow and return. It is clear that by adopting this installation solution, in some radiators will have to be dimensioned bearing in mind the differences in temperature with the solution without a hydraulic circuit breaker.. The maximum flow temperature to the radiators will therefore be T3. a) Output of the heating circuit equal to the input of the boiler circuit That is what happens in the traditional heating systems ( where the pumps of the primary circuit are chosen with input that are like the ones of the secondary) In this case, as you can understand from the below explanation, the use of the separator does not change the values of the temperatures so that the radiators can be dimensioned according to the maximum flow temperature of the fluid produced by the boiler

Hydraulic separator T2

Boiler cicuit

To the secondary circuits T3

T1 T2

In this case the link between the temperatures, as anticipated above is : T1= T3 e T4=T2 b) Input in the heating circuit greater than the input of the boiler circuit

BoilerT2cicuit

T4 To the secondary circuits T4

In this second case the relationships between the temperatures of the water to the connections of the hydraulic circuit breaker are the followings:

T1 > T3 e T2 = T4 ∆Tboiler=Q/Gboiler ∆Tsystem=Q/Gsystem T2=T1-∆Tboiler

T3=T4+∆Tsystem=T2+∆Tsystem

Where Q means the output of the boilers and Gsystem and Gboiler represents the inputs of the heating circuit and of the boiler. This is what happens in the systems with under station at distance when you prefer to keep the input value of the primary circuit to contain the expenses of the system as well as the operational expenses

Solutions for centralized heating systems installations

Hydraulic separator c) input of the heating circuit lower than the one of the circuit of the boiler

Circuit of the boiler

To the secondary circuis

In the third example the relationships ate the following: T1 = T3 e T2 > T4 ∆Tboiler=Q/Gboiler ∆Tsystem=Q/Gsystem

T2=T1-∆Tboiler

With the same meaning of the symbols. This eventuality may be favourably exploited in plant with radiating panels linked with traditional boilers for raising the return temperature in the boiler above the values that involve condensation of fumes. BAXI hydraulic separators have the followingT2characteristics: • steel body painted with epoxy powders • maximum working pressure: 10 bar • equipped with automatic air tap and blow-off valve • equipped with ½”F inlet/outlet probe holder fixture • insulation in closed cell expanded and rigid polyurethane foam

230

399

Hydraulic separator 8,5m3/h – 2” traded joints

330

484 290

143

203

290

203

484

1069

300

811

300

157,5

811

157,5

Hydraulic separator 18m3/h – flanged joints ø 65 PN 16 63

Hydraulic separator 28m3/h – flanged joints ø 80 PN 16

290 95

290

484

450

1279

450

264,5

1279

263

484

450

365

1279

263

Hydraulic separator 56m3/h – flanged joints ø 100 PN 16

Hydraulic separator kit The hydraulic separator kits make possible the connection between the flow/return manifolds of single or cascade installation of Luna Duo-tec MP and the various types of available hydraulic separators ( from 8,5-18 and 28 m3/h)

Connection to hydraulic separator kit 8,5m3/h – 2” traded joints 64

Connection to hydraulic separator kit 18m3/h – flanged joints ø 65 PN 16

Connection to hydraulic separator kit 28m3/h – flanged joints ø 80 PN 16

Solutions for centralized heating systems installations

Hydraulic separator Image

Description

Code

Connection to hydraulic separator kit 8.5 m³/h

Soon available

Connection to hydraulic separator kit 18 m³/h

Soon available

Connection to hydraulic separator kit 28 m³/h

Soon available

Hydraulic separator HS 8.5 of 8.5 m³/h - 2” threaded connectors

LSD 790000310 .

Hydraulic separator HS 18 of 18 m³/h - Ø 65 flanged connectors

LSD 790000320 .

Hydraulic separator HS 28 of 28 m³/h - Ø 80 flanged connectors

LSD 790000330 .

Hydraulic separator HS 56 of 56 m³/h - Ø 100 flanged connectors

LSD 790000340 .

Condensate neutralizer kits Neutralizer filter to process the water deriving from the condensation of BAXI wall hung condensing boilers Cod. KHG714125610 Recharge for neutralizer kit for wall-hung boilers up to 100 kW cod. KHG 714135310 .

Maximum condensate water flow

l/h

Max potentiality of the boiler

kcal/h

100.000

Max potentiality of the boiler

fino al 116

Maximum working pressure

bar

Maximum temperature of the water content

째C

Corresponding to the maximum temperatures of the condensate waters

Min/Max room temperature

째C

5-40

Diameter

87,5

Height

365

Neutralizer kit for wall hung boilers up to 100 kW

Neutralizer filter to process the water deriving from the condensation of BAXI condensing boilers in cascade installations. Cod. KHG714125710. Recharge for neutralizer kit for wall-hung boilers up to 350 kW cod. KHG 714135410 .

Maximum condensate water flow

l/h

Max potentiality of the boiler

kcal/h

da 201.000 a 300.000

Max potentiality of the boiler

234-349

Maximum working pressure

bar

Maximum temperature of the water content

째C

Corresponding to the maximum temperatures of the condensate waters

Min/Max room temperature

째C

5-40

Quantity of the first charge of product

Next recharges

4,5

Dimensions ( hxwxd)

260x330x225

Neutralizer kit for wall hung boilers up to 350 kW

Solutions for centralized heating systems installations

Other accessories Flue accessories for cascade installation Luna Duo-tec MP Image

Description

Code

PP flue tube kit for two boilers ø 160

KHW 714097510 .

PP flue tube kit ø 200 for two boilers

KHW 714097910 .

PP flue tube kit ø160 for the third boiler

KHW 714097610 .

PP flue tube kit ø200 for the third boiler

KHW 714098010 .

PP 87° bend ø160

KHW 714097810 .

PP 87° bend ø200

KHW 714098210 .

PP tube extension ø160 L=1000 mm

KHW 714097710 .

PP tube extension ø200 L=1000 mm

KHW 714098110 .

Flue accessories for cascade installation Luna Duo-tec MP 35-50-60-70 kW Image

Description

Code

PP flue tube kit for two boilers ø 125

KHG 714093211 .

PP flue tube kit ø125 for the third boiler

KHG 714093311 .

PP 87° bend ø125

KHG 714094410 .

PP 45° bend ø125 (pack of 2)

KHG 714094510 .

PP tube extension ø125 L=1000 mm

KHG 714094610 .

PP shutter kit 110/80 with condensing trap

Soon available 67

Other accessories Flue accessories for cascade installation Luna Duo-tec MP 90-100 kW Image

Description

Shutter kit Ă&#x2DC; 110/110 with condensing trap

Code

Soon available

Hydraulic accessories for single and cascade installation (from 1.35 to 1.110) Image

Description

Code

Boiler-manifold kit for boilers 90-110 kW

710585201 .

Boiler-manifold kit for boilers 35-50-60 - 70 kW

710579901 .

Expansion tank connection kit for boilers 35 - 50 - 60 - 70 - 90 - 110 kW

710583801 .

Gas delivery/return manifolds kit for boilers 90 - 110 kW

710584601 .

Gas delivery/return manifolds kit for individual boiler 35 - 50 - 60 70 kW

710577501 .

Gas delivery/return manifolds kit for 2 boilers 90 - 100 kW

710584901 .

Gas delivery/return manifolds kit for 2 boilers 35 - 50 - 60 - 70 kW

710577701 .

Manifold connection kit

710583201 .

Flanges and gas kit

710582701 .

Insulation kit for individual boiler flow/return manifolds ( from 35 to 70 kW)

710587001 .

Insulation kit for individual boiler flow/return manifolds ( from 90 to 110 kW)

710587801 .

Insulation kit for two boilers flow/return manifolds ( from 35 to 70 kW)

710587501 .

Insulation kit for two boilers flow/return manifolds ( from 90 to 110 kW)

710588501 .

TUBO COLLEGAMENTO COLLETTORI GAS

Solutions for centralized heating systems installations

Other accessories Thermoregulation Image

Description

Code

Mixer valve motor

KHG 714078511 .

Mixer valve G1”

KHG 714078310 .

Mixer valve G1/2”

KHG 714078610 .

Mixer valve G3/4”

KHG 714078710 .

Delivery contact sensor for AGU 2.550 (QAD36)

KHG 714078910 .

Hot sanitary water sensor

KHG 714076810 .

Solutions for centralized heating systems installations

Modular condensing generator (GMC) Introduction: the range GMC Configurations Dimensions Accessories

P. 72 74 76 78

Modular condensing generators (GMC) GMC modular generators are Luna HT wall-mounted condensing boilers placed in a technical cabinet suitable for placing outside buildings. The system includes hydraulic manifolds and ISPESL approved safety devices The cabinet may contain single generators or several in cascade. In the latter case the system requires a cascade controller with climate adjustment function.

• Minimal dimensions and highly compact • Facilitates restructuring of apartment block heating systems (simplified compliance) • Highly modular: up to 3 containment modules available with flow and return attachments both on the right and left sides • Easy installation, fast connection • Easy to handle with mechanical power/lift • Suitable for installation outdoors • Hydraulic accessories for functioning in cascade

Modules

N° boilers installed**

Luna HT Residential possible combinations

1.450 1.550 1.650

doors*

1.850 1.1000 1.450 1.550 1.650

doors*

1.850 1.1000

Total kW installed 45 55 65 85 90 100 110 120 130 170 185 200 90 100 110 120 130 135 145 155 165 170 175 185 195 200 255 270 285 300

(*) An additional 2 or 3 door cabinet may be ordered to shelter the hydraulic compensator and system accessories from bad weather. (**) In systems with two or three boilers the hydraulic output towards the system can be positioned on the right or left side depending on the position of the ISPESL manifold kit.

Max. Weight per cabinet

Cabinet with boiler

Cabinet with hydraulic separator

Empty cabinet

250

200

100

Solutions for centralized heating systems installations The integrated, compact Baxi solution for installation in centralised, civil and commercial systems. Baxi has developed gas condensing modular systems composed of a number of heat generators contained in a single technical cabinet: Baxi condensing boilers Luna HT can be installed inside such modules for high energy efficiency (up to 109.8%) and reduced levels of pollution. Ideal for installations in centralised, civil or commercial systems, Baxi GMCs are simple to integrate with the range of heat-boxes LUNA SAT.

Flue terminal kit Cabinet

Hydraulic separator kit (not included) composed of: -frame -pipes -separator

Condensing trap kit

Electric box kit (not included)

Return manifold

Flow manifold Holes for handling Manifolds kit (flow/return/gas)

GMC Configurations Baxi's GMC range provides 2 and 3 door solutions, from 45kW (one 2-door module of 1x 45kW) to 600kW (2 combined 3-door modules of 3x100kW).

GMC 2 - DX 1x45/55/65 Code

GMC 2 - DX 1x85/100 Composed of: n°1 Kit 2 module cabinet 85-100 n°1 Manifold kit single boiler for cabinet 45/100 n°1 Expansion vessel connections kit 85-100 n°1 Connections kit right side boiler for cabinet 85-100 n°1 Kit ISPESL manifold cabinet n°1 Flange and gaskets kit for cabinet n°1 Ø 80mm terminal kit for cabinet n°1 Reduction kit terminal 80/110 cabinet 85-100 n°1 Kit ISPESL accessories n°1 Kit manifold brackets for cabinet n°1 Kit manifold clamp support beam

without ISPELS accessories n° of boilers installed n° of doors

modular condensation generators

GMC for Luna HT (2 doors) 1 boiler module

Composed of: n°1 Kit 2 module cabinet 45-55-65 n°1 Kit single boiler manifolds for cabinet 45/100 n°1 Expansion vessel connections kit 45/55/65 n°1 Right boiler connections kit for cabinet 45-55-65 n°1 Kit ISPESL manifold cabinet n°1 Flange and gaskets kit for cabinet n°1 Ø 80mm terminal kit for cabinet n°1 Kit ISPESL accessories n°1 Kit manifold clamps for cabinet n°1 Kit manifold clamp support beam

Legend:

hydraulic output (right or left side)

Luna HT Residential models installed

GMC 2 - SX 1x45/55/65 Code

LSD 799000010 .

Composed of: n°1 Kit 2 module cabinet 45-55-65 n°1 Manifolds kit for cabinet with single boiler 45/100 n°1 Expansion vessel connections kit 45/55/65 n°1 Connections kit left side boiler for cabinet 45-55-65 n°1 Kit ISPESL manifold for cabinet n°1 flange and gaskets kit for cabinet n°1 Ø 80mm terminal kit for cabinet n°1 Kit ISPESL accessories n°1 Kit manifold brackets for cabinet n°1 Kit manifold clamp support beam

LSD 799000020 .

GMC 2 - SX 1x85/100 Code

Code LSD 799000040 .

Composed of: n°1 Kit 2 module cabinet 85-100 n°1 Kit manifolds single boiler cabinet 45/100 n°1 Expansion vessel connections kit 85-100 n°1 Connections kit left side boiler cabinet 85-100 n°1 Kit ISPESL manifold cabinet n°1 Kit flange and gaskets for cabinet n°1 Kit Ø 80mm terminal for cabinet n°1 Reduction kit terminal 80/110 cabinet 85-100 n°1 Kit ISPESL accessories n°1 Kit manifold brackets for cabinet n°1 Kit manifold clamp support beam

LSD 799000050 .

2 boiler module GMC 2 - 2x45/55/65* Composed of: n°1 Kit 2 module cabinet 45-55-65 n°1 Kit manifolds dual boiler cabinet 45/100 n°2 Expansion vessel connection kits 45/55/65 n°1 Connections kit left side boiler cabinet 45-55-65 n°1 Connections kit right side cabinet boiler 45-55-65 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°2 Kits terminal Ø 80mm for cabinet n°1 Kit ISPESL accessories n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

LSD 799000030 .

GMC 2NI - 2x45/55/65 Code Composed of: n°1 Kit 2 module cabinet 45-55-65 n°1 Kit manifolds dual boiler cabinet 45/100 n°2 Expansion vessel connections kits 45/55/65 n°1 Connections kit left side boiler cabinet 45-55-65 n°1 Connections kit right side boiler cabinet 45-55-65 n°1 Kit flow manifold L=495mm n°1 Kit cabinet flange and gaskets n°2 Kits terminal Ø 80mm for cabinet n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

GMC 2 - 2x85/100* Code

Code

LSD 799000110 .

Composed of: n°1 Kit 2 module cabinet 85-100 n°1 Kit manifolds dual boiler cabinet 45/100 n°2 Expansion vessel connection kits 85-100 n°1 Connections kit left side boiler cabinet 85-100 n°1 Connections kit right side cabinet boiler 85-100 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°2 Kits terminal Ø 80mm for cabinet n°2 Reduction kits terminal 80/110 cabinet 85-100 n°1 Kit ISPESL accessories n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

LSD 799000060 .

GMC 2NI - 2x85/100 Code Composed of: n°1 Kit 2 module cabinet 85-100 n°1 Kit manifolds dual boiler cabinet 45/100 n°2 Expansion vessel connection kits 85-100 n°1 Connections kit left side boiler cabinet 85-100 n°1 Connections kit right side cabinet boiler 85-100 n°1 Kit flow manifold L=495mm n°1 Kit cabinet flange and gaskets n°2 Kits terminal Ø 80mm for cabinet n°2 Reduction kits terminal 80/110 cabinet 85-100 n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

LSD 799000120 .

*In case of safety device included (ISPESL), the hydraulic output towards the system can be positioned on the right or left side depending on the position of the ISPESL manifold kit. Consider product availability as 30 days from confirmation of the order

Solutions for centralized heating systems installations GMC for Luna HT (3 doors) 1 boiler module GMC 3 - DX 1x45/55/65 Composed of: n°1 Kit 3 module cabinet 45-55-65 n°1 Kit manifolds single boiler cabinet 45/100 n°1 Expansion vessel connections kit 45/55/65 n°1 Connections kit right side cabinet boiler 45-55-65 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°1 Kit terminal Ø 80mm for cabinet n°1 Kit ISPESL accessories n°1 Kit manifold brackets for cabinet n°1 Kit manifold clamp support beam

Code LSD 799000150 .

GMC 3 - DX 1x85/100 Code Composed of: n°1 Kit 3 module cabinet 85-100 n°1 Kit manifolds single boiler cabinet 45/100 n°1 Expansion vessel connections kit 85-100 n°1 Connections kit right side cabinet boiler 85-100 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°1 Kit terminal Ø 80mm for cabinet n°1 Reduction kits terminal 80/110 cabinet 85-100 n°1 Kit ISPESL accessories n°1 Kit manifold brackets for cabinet n°1 Kit manifold clamp support beam

LSD 799000170 .

GMC 3 - SX 1x45/55/65 Code Composed of: n°1 Kit 3 module cabinet 45-55-65 n°1 Kit manifolds single boiler cabinet 45/100 n°1 Expansion vessel connections kit 45/55/65 n°1 Connections kit left side boiler cabinet 45-55-65 n°1 Kit ISPESL manifold cabinet n°1 Kit flange and gaskets for cabinet n°1 Kit terminal Ø 80mm for cabinet n°1 Kit ISPESL accessories n°1 Kit manifold brackets for cabinet n°1 Kit manifold clamp support beam

LSD 799000160 .

GMC 3 - SX 1x85/100 Code Composed of: n°1 Kit 3 module cabinet 85-100 n°1 Kit manifolds single boiler cabinet 45/100 n°1 Expansion vessel connections kit 85-100 n°1 Connections kit left side boiler cabinet 85-100 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°1 Kit terminal Ø 80mm for cabinet n°1 Reduction kits terminal 80/110 cabinet 85-100 n°1 Kit ISPESL accessories n°1 Kit manifold brackets for cabinet n°1 Kit manifold clamp support beam

LSD 799000180 .

2 boiler module GMC 3 - 2x45/55/65* Composed of: n°1 Kit 3 module cabinet 45-55-65 n°1 Kit manifolds cabinet 2 single boilers 45/100 n°2 Expansion vessel connection kits 45/55/65 n°1 Connections kit right side cabinet boiler 45-55-65 n°1 Connections kit left side boiler cabinet 45-55-65 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°2 Terminal Ø 80mm kits for cabinet n°1 Kit ISPESL accessories n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

Code LSD 799000070 .

GMC 3 - 2x85/100* Code Composed of: n°1 Kit 3 module cabinet 85-100 n°1 Kit manifolds 2 single boiler cabinet 45/100 n°2 Expansion vessel connection kits 85-100 n°1 Connection kit right side cabinet boiler 85-100 n°1 Connection kit left side boiler cabinet 85-100 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°2 Terminal Ø 80mm kits for cabinet n°2 Reduction kits terminal 80/110 cabinet 85-100 n°1 Kit ISPESL accessories n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

LSD 799000090 .

3 boiler module GMC 3 - 3x45/55/65* Code Composed of: n°1 Kit 3 module cabinet 45-55-65 n°1 Kit manifolds 3 single boiler cabinet 45/100 n°3 Expansion vessel connection kits 45/55/65 n°2 Connection kits left side boiler cabinet 45-55-65 n°1 Connection kit right side cabinet boiler 45-55-65 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°3 Terminal Ø 80mm kits for cabinet n°1 Kit ISPESL accessories n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

LSD 799000080 .

GMC 3NI - 3x45/55/65 Code Composed of: n°1 Kit 3 module cabinet 45-55-65 n°1 Manifolds kit 3 single boiler cabinet 45/100 n°3 Expansion vessel connection kits 45/55/65 n°2 Connection kits left side boiler cabinet 45-55-65 n°1 Connections kit right side cabinet boiler 45-55-65 n°1 Kit flow manifold L=495mm n°1 Kit cabinet flange and gaskets n°3 Terminal Ø 80mm kits for cabinet n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

LSD 799000130 .

GMC 3 - 3x85/100* Code Composed of: n°1 Kit 3 module cabinet 85-100 n°1 Manifolds kit 3 single boiler cabinet 45/100 n°3 Expansion vessel connections kit 85-100 n°1 Connections kit right side cabinet boiler 85-100 n°2 Connection kits left side boiler cabinet 85-100 n°1 Kit ISPESL manifold cabinet n°1 Kit cabinet flange and gaskets n°3 Terminal Ø 80mm kits for cabinet n°3 Reduction kits terminal 80/110 cabinet 85-100 n°1 Kit ISPESL accessories n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

GMC 3NI - 3x85/100 Composed of: n°1 Kit 3 module cabinet 85-100 n°1 Kit manifolds 3 single boiler cabinet 45/100 n°3 Expansion vessel connection kits 85-100 n°1 Connections kit right side cabinet boiler 85-100 n°2 Connection kits left side boiler cabinet 85-100 n°1 Kit flow manifold L=495mm n°1 Kit cabinet flange and gaskets n°3 Terminal Ø 80mm kits for cabinet n°3 Reduction kits terminal 80/110 cabinet 85-100 n°2 Kits manifold brackets for cabinet n°2 Kits manifold clamp support beam

LSD 799000100 .

Code LSD 799000140 .

*In case of safety device included (ISPESL), the hydraulic output towards the system can be positioned on the right or left side depending on the position of the ISPESL manifold kit. 75 Consider the availability of the product 30 days from confirmation of the order

Dimensions GMC modules with 2 doors

Dimensions (mm) Modules

2 doors

1600

1900

800

1900

190

ÂŻ149

228

290

194

124

417

309

1600

Luna HT 45-55-65 kW

800

160 800

331

Luna HT 85-100 kW 355

454,5 182,5

277,5

445

800

345,5

Solutions for centralized heating systems installations

Dimensions GMC modules with 3 doors

Dimensions (mm) Modules

3 doors

2400

1900

800

1900

190

ÂŻ149

228

290

194

124

417

2400

309

Luna HT 45-55-65 kW 800

800

160 800

331

Luna HT 85-100 kW 355

454,5

800

345,5

182,5

277,5

445

Accessories Model

Description

Code

Connection kit betwen cabinets

LSD 790000110 .

Flow manifold kit L=495mm (only in the case of two cabinets in cascade)

LSD 790000120 .

Electric box with adjuster for cascade installation for floor mounting

LSD 790000130 .

Electric box for additional cabinet with 1 boiler or installation of single boiler

LSD 790000190 .

Electric box for additional cabinet with 2 boilers

LSD 790000200 .

Hydraulic separator kit 8.5/m³/h for assembling in a cabinet

LSD 796000050 .

Hydraulic separator kit 18/m³/h for assembling in a cabinet

LSD 796000060 .

Hydraulic separator kit 28/m³/h right side output for assembling in a cabinet

LSD 796000070 .

Hydraulic separator kit 28/m³/h left side output for assembling in a cabinet

LSD 796000080 .

Blind cabinet with 2 doors

LSD 710000032 .

1900

190

¯149

228

290

194

124

417

2400

309

160 800

331

190

¯149

800

355

454,5

800

345,5

Blind cabinet with 3 doors

1900

277,5

182,5

445

228

290

194

124

417

2400

800

355

454,5 182,5

277,5

445

309

800

160 800

331

800

345,5

LSD 710000062 .

Solutions for centralized heating systems installations

Luna HT 35-100 kW The range of high efficiency condensing boilers Luna HT consists of condensing heat generators for heating only , with power between 35 and 100 kW ( 80/60°C).The range is distinguished by high efficiency, simplicity of use and installation and a great number of accessories for individual and cascade installation. The main element and heart of these condensing boilers is the heat exchanger with combustion chamber and coil hydraulic system in AISI 316L stainless steel. The low water content in the exchanger means very limited thermal inertia and therefore a rapid response to the variations in thermal energy required by the system.

1.350

1.450

1.550

1.650

1.850

1.1000

Nominal heat input

34,8

46,4

56,7

87,2

105

Maximum heating heat output 80/60°C

33,9

46,4

102

Maximum heating heat output 50/30°C

36,5

48,7

59,5

70,3

91,6

110,3

Reduced heat output 80/60°C

14,5

15,5

19,3

25,7

Minimum heat output 50/30°C

15,8

16,8

27,8

31,4

Energy efficiency 92/42/EEC

★★★★

Average efficiency (DIN 4702-T8)

109,8

Nominal efficiency 80/60°C

97,3

97,4

97,3

97,5

97,4

Nominal efficiency 50/30°C

105,1

105,0

105,2

105,1

Efficiency at 30%

107,6

107,5

107,6

107,3

107,4

kPa

11,77

17,65

20,59

25,42

23,72

lt/sec

0,28

0,35

0,52

0,58

Pressure drop water side with ∆T20k Minimum input on the exchanger NOx Class (EN 483) Minimum working temperature

°C

-5

Water content

5,1

5,6

6,5

13,7

Quantity of condensation

lt/h

3,9

5,1

6,2

7,3

9,6

11,5

Maximum pressure heating system

bar

Safety valve intervention pressure

bar

Maximum heating temperature regulation

°C

25/80

Co-axial flue system maximum length tube

10 (ø 80/125)

10 (ø 110/160)

Dual flue system maximum length tube

60 (ø 80)

27 (ø 110)

Maximum flue mass flow rate

kg/s

0,016

0,022

0,027

0,032

0,041

0,050

Minimum flue mass flow rate

kg/s

0,007

0,008

0,010

0,013

0,015

Maximum flue temperature

°C

Residual flue head

100

140

Combustion air flow to Qn

kg/s

0,018

0,024

0,029

0,035

0,045

0,055

Dimensions (h x w x d)

950x600x466

950x600x650

Net weight

Natural gas/LPG

Type of gas Power consumption

125

150

200

Power consumption in standby mode

6,3

Max. possible length external sensor cable Noise level (1m in front of the boiler) Protection rating

120

dBA

47,1

49,3

48,9

47,6

44,3

47,8

IPX5D

Solutions for centralized heating systems installations

Luna Platinum Technical chart Dimensions Diagrams Wiring diagram Connection to an indirect cylinder for DHW production Coaxial flue system installation Coaxial flue system accessories Dual flue system installation Dual flue system accessories Flexible ducting system accessories Electronics Programming, setting and digital control Cascade installation Schemes for cascade installation Hydraulic separators and condensate neutralizer kit Other accessories

P. 82 83 84 85 86 87 88 89 90 92 93 94 96 102 115 116

Luna Platinum Luna Platinum range of wall-mounted boilers is composed of heating-only condensing boilers with an output from 12 to 32 kW (at 80°/60°C). The range stands out for its high performance, ease of use and installation and wide range of accessories for single installation or in cascade. The core element of these condensing boilers is the heat exchanger in stainless steel AISI 316L. The low water content of the exchanger allows for very limited heat inertia and therefore a rapid response to variations in heat demand on the system. The steel surfaces protect the exchanger from the risk of corrosion caused by condensation.

1.12

1.18

1.24

1.32

Maximum heating heat input

12,4

17,4

24,7

Maximum heating heat output 80/60°C

16,9

Maximum heating heat output 50/30°C

13,1

18,4

26,1

34,9

Minimum heat output 80/60°C

2,9

5,3

Minimum heat output 50/30°C

2,2

3,2

4,3

5,8

HHHH

Energetic efficiency 92/42/CEE Average efficiency (DIN4702-T8)

109,8

Nominal efficiency 80/60°C

97,8

97,7

97,6

Nominal efficiency 50/30°C

105,8

105,7

Efficiency at 30%

107,8

107,7

107,6

lt/h

400

600

Minimum flow on the exchanger Nox class (EN483) Minimum working temperature

°C

-5

Expansion vessel capacity/pre.charge

8/0,8

10/0,8

Quantity of condensing

l/h

1,5

2,2

2,9

Regulation of water temperature in heating circuit

bar

25-80

DHW temperature regulation

bar

35-60

Heating system max pressure

bar

Coaxial flue system max length ø 60/100 Dual flue system max lenght ø 80

m m

Maximum flue mass flow rate

kg/s

0,006

0,008

0.012

0,016

Minimum flue mass flow rate

kg/s

0,001

0,002

0,003

Maximum flue temperature

°C

Residual flue prevalence

m³/h

16,8

23,5

33,4

44,6

Comburent air-flow at Qn

100

Dimensions (h x w x d)

Net weight

Gas type

760x450x345 34,5

34,5

37,5

Natural Gas/LPG

Power consumption

105

125

120

140

Power consumption in stand-by way

dBA

<45db (A)

IPX5D

Noise (1 mt far from the boiler) Grade of protection

Solutions for centralized heating systems installations The various parts of the generator are controlled by a latest generation electronics circuit board which makes for simple, reliable boiler management using the extractable control panel with wide LCD display. Daily and weekly programming of heating and DHW functions is possible, as is climatic setting according to the comfort criteria chosen by the user and the visualisation of error messages relating to any faults. In addition, such boiler electronics allow technicians to access a series of adjustment parameters and configure the generator so as to optimise efficiency depending on the type of system used.

Dimensions Luna Platinum 1.12 -1.18 -1.24 -1.32 140,5

131min.

177

760

450

345

S.C. M.R. U.S. GAS E.S. R.R.

Condensing trap that can be installed on a Ø 21 pipe Heating system flow G 3/4” Storage tank flow G 3/4” Gas inlet G 3/4” Mains water G 1/2” Heating system return G 3/4” 83

Diagrams As well as illustrating the heating system layout the figures below enable more detailed analysis of generator behaviour in various conditions of use. The pump flow rate-head curve defines the dynamic characteristics of the BAXI circulator inside the hydraulic group. As is known, the temperature of the return water directly influences the efficiency of condensing boilers: at very low temperatures there is better use of the latent heat and consequently improved boiler efficiency. The graph below shows the variations in efficiency, as the ratio of the flow rate to the heat output of the condensing generator specified, depending on the return temperature of the boiler. The last figure shows the trend of the flue temperature of the generator depending on the return temperature.

Head

FLOW RATE/HEAD CURVE

Flow rate

EFFICIENCY OF THE BOILER ACCORDING TO THE RETURN TEMPERATURE

75 70 65 60 55 50 45 40 35 30

Efficiency of the boiler %

Flues temperature %

FLUES TEMPERATURE ACCORDING TO THE RETURN TEMPERATURE

100% load

30% load

Return temperature of the system 째C

108 107 106 105 104 103 102 101 100 99 98 97

30% load 100% load

Return temperature of the system 째C

Solutions for centralized heating systems installations

Wiring diagram The figure shows the wiring diagram of the connectors to the circuit board of the boiler. The sensors and functional components of the generator are controlled by the circuit board to which they are connected by the internal connectors shown in the figure.

R C C

FUSIBILI

G/V

22 1

M3 N

X20

X10

Y N M

V V

G/V

X11

X50

X21

M G/V C C M

G/V

C C N R

C C R R

V C M

X30

X13

X22

X12

N B R

M N

X40

C M

G/V

C M X41

X14

B N

C C C M V N

X42

X70

X60

X23

G/V

COLOURS OF THE CABLES: C= Blue M= Brown N= Black R= Red G/V=Yellow/Green V=Green B=White G=Grey Y=Yellow P=Violet

M C M

G/V

N C

G/V

a b

G/V

1 2 3 4 5 6 7 8

Pump with air separator Boiler drain tap Pressure gauge Hydraulic safety valve Boiler filling tap Flow sensor with water filter and flow limiting device DHW priority sensor NTC DHW sensor

9 10 11 12 13 14 15 16

Hydraulic pressure sensor 3-way valve with motor Non-return valve DHW heat exchanger Gas valve Safety thermostat NTC heating sensor (flow/return) Fumes sensor

17 18 19 20 21 22 23

Coaxial connector Water-fumes exchanger Ignition electrode Burner Flame detection electrode Air/gas blend manifold Fan

Connection to an indirect cylinder for DHW production The boilers are predisposed for the connection of an external cylinder as provided at source with a motorised three-way valve. The hydraulic connections of the boiler are shown in the figure below. The DHW over-ride NTC sensor, supplied as an accessory, is connected to terminals 9-10 of the terminal board M2. The sensitive element of the NTC sensor should be inserted in the dedicated well provided on the boiler itself. The temperature of the domestic hot water and choice of DHW timer can be made directly from the boiler control panel.

BOILER UNIT CONNECTION DIAGRAM KEY: A - HEATING UNIT B - THREE-WAY VALVE C - HEATING FLOW D - BOILER FLOW E - HEATING/BOILER RETURN G - NTC SENSOR DHW BOILER F - BOILER UNIT M2 - CONNECTION TERMINAL BOARD

M2 1 2 3 4 5

6 7 8

9 10

G F

Solutions for centralized heating systems installations

Coaxial flue system installation Examples of installation with horizontal flue system Ø 60/100

Max duct length (m) Ø60/100

Ø80/125

Length reduction with a 90° bend insertion

Length reduction with a 45° bend insertion

0,5

Installation examples with LAS chimney ø60/100

Installation example with vertical flue ducts ø60/100

Coaxial flue system accessories Luna Platinum 1.12 - 1.18 - 1.24 - 1.32 Picture

Description

Code

PP coaxial flue tubes with terminal 60/100 L=750 mm supplied with windproof terminal and sealing collar

KHG 714059612 .

PP coaxial flue tube with terminal 80/125 L=1000 mm supplied with wind proof terminal and sealing collar

KHG 714088910 .

PP coaxial flue tube extension 60/100 L=1000 mm

KHG 714059515 .

PP coaxial flue tube extension 80/125 L=1000 mm

KHG 714088511 .

PP coaxial flue tube extension 60/100 L=500 mm

KHG 714119810 .

PP coaxial flue tube extension 80/125 L=500 mm

KHG 714088610 .

PP coaxial 90° bend - Ø 60/100

KHG 714059716 .

PP coaxial 87° bend - Ø 80/125

KHG 714088711 .

PP coaxial 45° bend - Ø 60/100

KHG 714059816 .

PP coaxial 45° bend - Ø 80/125

KHG 714088811 .

Internal sealing collar Ø 100

KHG 714017710 .

PP vertical chimney terminal 80/125

KHG 714093510 .

PP reduction from 80/125 to 60/100

KHG 714093910 .

Flat roof tile to be used with a vertical chimney terminal 80/125

KHG 714093610 .

Pitched roof tile to be used with a vertical chimney terminal 80/125; it is adjustable from 15° to 45°

KHG 714093710 .

Solutions for centralized heating systems installations

Dual flue system installation This type of pipe permits discharge of the combustion products both outside the building and in single flues. The air intake for combustion may be placed in a different area from that of the discharge. The gaskets and screws of the previously removed from the stopper should be used for air intake connector. The 90° bend enables connection of the boiler to the flues and intake pipes in any direction thanks to the fact that they can rotate by 360°. It can also be used as an additional bend in combination with the pipe or 45° bend. (A-B) For special installations of the flues inlet/outlet ducts (B), the orienting dual flue system supplied as an accessory, can be used. This accessory, in fact, can be used to move the inlet and outlet in any direction thanks to the possibility of rotation at 360°.

120

Installation example with vertical dual flue ducts

110

140,5

159

110

177

350

450

120

110

134

198

110

177 450

140,5

Installation examples with horizontal dual flue ducts

The max length of the flue ducts is 15 meters 89

Dual flue system accessories Luna Platinum 1.12 - 1.18 - 1.24 - 1.32 Picture

Description

Orienting dual flue system

Code

710268902 .

PP dual flue system Ø 80 it includes: flue reduction, intake connection

KHG 714059113 .

PP vertical flue system B23 type installation

KHG 714111011 .

PP reduction from Ø 80 to Ø 60

KHG 714075610 .

PP tube extension Ø 80 L=1000 mm

KHG 714059411 .

PP tube extension Ø 80 L=500 mm

KHG 714059910 .

PP tube extension Ø 60 L=1000 mm

KHG 714075310 .

PP tube extension Ø 60 L=500 mm

KHG 714075210 .

PP 90° bend Ø80

KHG 714059211 .

PP 90° bend Ø60

KHG 714075410 .

PP 45° bend Ø80

KHG 714059311 .

PP 45° bend Ø60

KHG 714075510 .

Solutions for centralized heating systems installations

Dual flue system accessories Picture

Description

Code

Tube Ø 80 centring kit (pack of 5)

KHG 714037411 .

Clamp centring kit Ø 80

KHG 714106110 .

Tube Ø 60 centring kit (pack of 5)

KHG 714051510 .

Tube Ø 80 supporting bracket (pack of 5)

KHG 714037310 .

Internal sealing collar Ø 80

KHG 714018510 .

External sealing collar Ø 80

KHG 714018411 .

Coaxial vertical chimney terminal 80/125

KHG 714093510 .

Dual flue tubes adapter for coaxial chimney Ø80/125

KHG 714093810 .

Flat roof tile Ø 125 to be used with a vertical chimney terminal

KHG 714093610 .

Pitched roof tile Ø 125 to be used with a vertical chimney terminal; it is adjustable from 15° to 45°

KHG 714093710 .

Dual flue terminal Ø 80

KHG 714010410 .

Dual flue terminal Ø 60

KHG 714037210 .

Flexible ducting system accessories Picture

Description

Code

PP flexible tube Ø 80 L= 1,5 m

KHG 714105710 .

PP flexible tube Ø 80 L= 20 m

KHG 714105810 .

PP 90° bend Ø 80 with supporting bracket and condensate drainings

KHG 714105910 .

PP 90° bend Ø 80 with supporting bracket

KHG 714106010 .

Flexible centring kit Ø 80 (pack of 3)

KHG 714106210 .

Triple lips gaskets kit Ø 80 (pack of 5)

KHG 714111210 .

Solutions for centralized heating systems installations

Electronics: a latest-generation interface Baxi has developed an innovative extractable control panel for the new Platinum series of boilers with a large, easy to read display with words and symbols. The back-lit panel is easy to see and use thanks to the central joystick and two dedicated pushbuttons for setting comfort parameters and for full programming of the device. Evolved electronics permit remote interfacing with the boiler using varied technologies to create a complete integrated system.

Heating zones DHW mode enabled Heating mode on Automatic 2 levels of heating temperature: comfort/reduced

Set heating timer Set DHW timer

Data transmission (with WIRELESS device only)

Room temperature and comfort mode

Outdoor temperature Room temperature Boiler/heating circuit pressure

Date: day, month, year, time

Easy menu key 1 Standby/on 2 DHW function forced 3 Heating circuit on mode 4 Heating circuit comfort temperature 5 DHW temperature regulation 6 Set-point nominal ACS

Navigator Knob/ programming menu regulation

Complete â&#x20AC;&#x153;menuâ&#x20AC;? button 1 2 3 4 5 6 7 8 9 10 11 12 13

Information Date and time Control panel Set heating timer 1 Set heating timer 3 Set DHW timer Set auxiliary timer Heating 1 holidays Heating circuit DHW circuit Instantaneous heater ACS Error Diagnostic parameters

Programming, setting and digital control Figure

Model

Description

Code

Room thermostat

Modulating room thermostat, version with wires (3led interface with support Cod. 710234001 .) or wireless (5led interface with support Cod. 710244101 .) If the control panel is installed in the boiler, it is necessary to buy the wireless aerial (see below) Dimensions: 105x98 mm

Cod. 710106101 . (with wires) Cod. 710304401 . (wireless)

Room thermostat with timer

Modulating room thermostat with timer, version with wires (3led interface with support Cod. 710234001 .) or wireless (5led interface with support Cod. 710244101 .) Advanced DHW managing. Dimensions 120x98 mm

Cod. 710298001 . (with wires) Cod. 710297901 . (wireless)

3LED interface with support

This accessory permits wired installation of the control panel on the wall in a representative room of the home. The control panel can be used to control the temperature of the room to be heated and to programme and control a heating system comprising boilers in cascade and various low temperature zones.

710234001 .

5LED interface with support

This accessory permits wireless installation of the control panel on the wall in a representative room of the home. The control panel can be used to control the temperature of the room to be heated and to programme and control a heating system comprising boilers in cascade and various low temperature zones.

710244101 .

Wireless aerial

This accessory permits installation of the WIRELESS outdoor sensor. If the 5 LED interface circuit with support is installed this accessory need not be installed.

710234301 .

Outdoor sensor kit (QAC34)

The outdoor sensor kit QAC34 is a temperature sensor which communicates the outside temperature to the boiler so that it can adapt the flow temperature to the effective heating requirements of the room as set by the user.

710487301 . (with wires) 710302701 . (wireless)

Accessory for managing mixed systems and solar panels (AGU 2.550)

By using this accessory the device can manage â&#x20AC;˘ Heating circuits at different temperatures. â&#x20AC;˘ Solar systems. â&#x20AC;˘ Other specific applications (swimming pool, DHW recirculation pump, etc). This accessory is able to directly manage the circuit components (pump, temperature sensor, mixer valve etc) up to a maximum of 3 independent relay outputs, 2 temperature sensors and 1 control input. Several predefined functions may be used which facilitate configuration of the system.

710034501 .

Solutions for centralized heating systems installations

Figure

Model

Description

Code

Accessory for managing systems with boilers connected in cascade. (AVS 75)

Use of the expansion module AVS75 allows management of a heating system with up to 16 boilers connected in cascade and one separate storage heater for the supply of DHW. This accessory, connected directly to one of the boilers in cascade, is able to directly manage the circuit components up to a maximum of 3 independent relay outputs, 2 temperature sensors inputs, 1 high voltage connector for the thermostat limit and 1 control input (such as TA).

710503701 .

Bus interface kit (OCI345)

The OCI345 interface is an electronic device enabling the communication via bus (two cables) between boilers connected in cascade or between one boiler (or the boilers in cascade) and a mixed zone controller RVS46.

710025602 .

Climate regulator for mixed zones RVS46

Heat adjustment control unit permits piloting of a mixed zone (typically low temperature zone). It can manage a mixer valve, pump and the flow sensor of the zone controlled. In addition it can exchange data with the circuit board of the boiler via the connection bus.

Soon available

Heating flow/return sensor for AGU 2.550 (QAD36)

KHG 714078910 .

Hot water temperature sensor

KHG 714076810 .

Sensor for solar controller

LNC 710000040 .

Cascade installation for Luna Platinum 1.12 - 1.18 - 1.24 - 1.32

Flue tube kit for 2 boilers ø 125 ø 160 ø 200

Flue tube kit for third boilers ø 125 ø 160 ø 200

Shutter kit 110/80 with condensing trap Vertical flue system B23 type of installation

Manifold pipes 2 Platinum boilers in cascade See complete list of accessories codes on page 116

Manifold pipes third Platinum boiler in cascade

Solutions for centralized heating systems installations Information for the calculation of the diameter of the manifold pipes (A) and of the chimney (B) The chart in the following page indicates the diameters of the manifold pipes and of the chimney for various configurations of boilers in cascade and for different heights of the chimney. B

Remarks

N° of boilers in cascade

• Distance of the manifold from the first boiler to the vertical chimney 2 meters • Shutter kit installed in each boiler in cascade • The pipes of the chimney and the connections between the manifold pipes of the cascade and the chimney are not supplied by BAXI • The calculation has been made assuming a PP “double wall” flue duct

1.12

1.18

1.24

1.32

Nominal output Total 80°/60°C (kW)

33,8

Manifold pipe Ø mm (A)

125

Chimney flue Ø mm (B) -H= 5-10 m

125

Chimney flue Ø mm (B) -H=10-15 m

125

Chimney flue Ø mm (B) -H=15-20 m

125

Nominal output Total 80°/60° C (kW)

50,7

Manifold pipe Ø mm (A)

125

Chimney flue Ø mm (B) -H= 5-10 m

125

Chimney flue Ø mm (B) -H=10-15 m

125

Chimney flue Ø mm (B) -H=15-20 m

125

Nominal output Total 80°/60° C (kW)

67,8

128

Manifold pipe Ø mm (A)

125

Chimney flue Ø mm (B) -H= 5-10 m

125

Chimney flue Ø mm (B) -H=10-15 m

125

160

Chimney flue Ø mm (B) -H=15-20 m

160

160 97

Connection of the interface bus for boilers in cascade (OCI345) The interface bus OCI345 is an electronic device enabling communication with and therefore the management of boilers in cascade. Thus used, the communication bus also permits remote monitoring and management of the cascade. The interface bus slot is inside the control panel of each boiler in the cascade. There are two possible positions of the accessory inside the panel: 1. If the extension module AGU2.550 has not already been installed in the boiler then remove the protective cover on the back of the command panel on the boiler, place the OCI345 interface in the relative slot and , once the boiler 's electronic circuit has been turned on, connect the interface using the cable provided to the connector of the electronic circuit X30.

OCI 345 LPB BUS

X30

LPB BUS

OCI 345

Connection of expansion module AVS75 Expansion module AVS75 is a device which, in a heating system run with LUNA PLATINUM boilers, supplies several programmable inlets/outlets necessary to complete the heating system. As for individual installations, the module AVS75 can supply the boiler with the inlets/outlets necessary for management of a mixed zone or, alternatively, a solar plant. The accessory is connected to the cascade of LUNA PLATINUM boilers by means of a local bus through which the information regarding the devices connected is received and transmitted. For each individual boiler a maximum of three expansion modules can be installed, one of which is the accessory AGU2.550 and the other two AVS75 for the management of a maximum of three mixed zones.

M H2 M BX22 M BX21

L QX22

X50

T N

3 X30

N QX21

EX21 FX23 L QX23

Flow sensor QAD36 Mixing valve Mixed zone pump Safety thermostat

A B C D

B L

230V In the case of a mixed zone, hook up the safety thermostat between the “FX23-L” terminals and jump the terminals “EX21-FX23”. In this way the circuit pump connected to relay “QX23” is internally connected in series with the safety thermostat. Should it be necessary to use relay outlet “QX23” for functions other than those envisaged for the mixed zone, jump terminals “FX23-L”.

A B C

100

Tank sensor (suppllied as optional) Collectors sensor (suppllied as optional) Solar circuit pump (suppllied as optional)

Solutions for centralized heating systems installations Connection of expansion module AVS75 As for cascade systems, the module AVS75 allows connection of a cascade pump (output side) downstream of the hydraulic separator, a loading pump for hot sanitary water storage and, where required, an ambiance thermostat and probes for delivery (usually downstream of the hydraulic separator) and for return (usually upstream) of the cascade. The AVS75 can also supply another programmable outlet at 230V for plant necessities. The accessory is connected to the cascade of LUNA PLATINUM boilers by means of a local bus through which the information regarding the devices connected is received and transmitted.

1 2 3 C

EX21 FX23 L QX23

L QX22

N QX21

AVS 75

M H2 M BX22 M BX21

ON 1

X50

3 X30

M1 230V

KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75 Not used for cascades

S (QX23-L9

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supply CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M) M

CASCADE DELIVERY PROBE inlet

X50

3 X30

Common sensor earth 101

Cascade installation schemes

OCI 345

QAD

1 Condensing boiler LUNA PLATINUM 2 Manifold pipes two boilers in cascade 3 Flue tube kit for two boilers 4 Flow/return sensor 5 Hydraulic separator 6 Outdoor sensor (QAC34) 7 Interface for cascade installation (OCI 345) 8 DHW sensor 9 Single coil tank (SC) 10 Safety device ISPESL (available as optional)

AVS75

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

SYSTEM WITH 2 CONDENSING BOILERS LUNA PLATINUM, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT (SINGLE COIL)

°C

TERMOMETRO

100

120

102

QAZ 21

Solutions for centralized heating systems installations Plant with two condensing boilers Luna Platinum in cascade- 1 high temperature direct circuit- 1 heater load circuit DHW

For complete management of the cascade you must install Bus module OCI 345 ( one in each boiler in cascade) and an expansion module AVS375 external to the cascade The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure.

KEY FOR CONNECTOR HOOK-UP X50

Connector for hook up between SIEMENS electronic board and accessory AVS 75 C

C (EX21-FX23)

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supply CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M)

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

ON 1

Not used for cascades

X50

3 X30

Common sensor earth

103

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER.

MASTER (main) boiler parameter configuration Using the control panel, access menu 3 and carry out the following settings. Menù

Programme line

Value

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Configuration

6046

Configuration

6200

Si (*)

LPB

6630

Always

LPB

6640

Autonomous

Ambiance thermostat CR1

Description Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature Control of cascade return temperature Enabling of thermostat in inlet H2 of the AVS75 Memorisation of modifications carried out Identification of master boiler Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

Parameter configuration on non-MASTER boiler Having configured he master boiler parameters as described in the previous paragraph, proceed to configuration of the other boilers.

The operations listed below are repeated for each boiler in the cascade, excluding the MASTER boiler. For correct system functioning an address must be assigned to each boiler so that it can be recognised by the master boiler (the master boiler has default =1). Moreover it is also necessary to synchronise the boiler clocks with that of the master boiler. Using the control panel, access menu 3 and carry out the following settings.

Menù

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

Cascade

3541

First – Last – First and Last.

After connecting the pump to the relay, set outlet QX22 as shown in the following table.

104

Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of HSW storage on relay QX22

Solutions for centralized heating systems installations

Cascade installation schemes

60 80

100

60 80

100

60 80

100

TERMOMETRO

°C

120

TERMOMETRO

°C

120

TERMOMETRO

°C

120

TERMOMETRO

°C

120

QAD

OCI 345

SYSTEM WITH 2 CONDENSING BOILERS LUNA PLATINUM, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT WITH INTEGRATION WITH SOLAR SYSTEM (OPTION), BUILT-IN HEAT BOXES LUNA SAT RH+2C

OCI 345

QAD

AVS75

QAZ 21

°C

TERMOMETRO

100

120

105

Plant with two condensing boilers Luna Platinum in cascade – 1 high temperature direct circuit – 1 heater load circuit DHW For complete management of the cascade you must install Bus Module OCI345 (one in each boiler in cascade) and an expansion module AVS75 external to the cascade. The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure. KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75 C

Not used for cascades

C (FX23-L)

Safety thermostat 230V not used for cascades

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supply CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M)

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

X50

3 X30

Common sensor earth

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER.

106

Solutions for centralized heating systems installations MASTER (main) boiler parameter configuration Using the control panel, access menu 3 and carry out the following settings. Menù

Programme line

Value

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Control of cascade return temperature

Configuration

6046

Ambiance thermostat CR1

Enabling of thermostat in inlet H2 of the AVS75

Configuration

6200

Si (*)

LPB

6630

Always

LPB

6640

Autonomous

Description Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature

Memorisation of modifications carried out Identification of master boiler Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

Parameter configuration on non-MASTER boiler Having configured he master boiler parameters as described in the previous paragraph, proceed to configuration of the other boilers. The operations listed below are repeated for each boiler in the cascade, excluding the MASTER boiler. For correct system functioning an address must be assigned to each boiler so that it can be recognised by the master boiler (the master boiler has default =1). Moreover it is also necessary to synchronise the boiler clocks with that of the master boiler. Using the control panel, access menu 3 and carry out the following settings. Menù

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

Cascade

3541

First – Last – First and Last.

After connecting the pump to the relay, set outlet QX22 as shown in the following table. Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of HSW storage on relay QX22

107

Cascade installation schemes 7

AVS75

OCI 420

QAD

1 Condensing boiler LUNA PLATINUM 2 Safety device ISPESL (available as optional) 3 Flue tube kit for two boilers 4 Flue tube for the third boiler 5 Flow/return contact sensor 6 Hydraulic separator 7 Outdoor sensor QAC 34 8 Interface for cascade installation (OCI 345) 9 Module AVS75 10 Manifold pipes for three boilers in cascade 11 DHW sensor 12 Double coil cylinder (DC) for solar integration (option) 13 Thermostatic mixer

AVS75

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

bar

Manometro

bar

SYSTEM WITH 3 CONDENSING BOILERS LUNA PLATINUM, 2 HIGH TEMPERATURE DIRECT CIRCUITS, 2 MIXED LOW TEMPERATURE CIRCUITS, 1 LOAD TANK FOR SOLAR INTEGRATION (OPTION)

°C

TERMOMETRO

100

120

108

Manometro

Solutions for centralized heating systems installations Plant with three condensing boilers Luna Platinum in cascade – 2 high temperature direct circuits – 2 mixed circuits and one heater load circuit DHW For complete management of the cascade you must install Bus Module OCI345 (one in each boiler in cascade), and an expansion module AVS75 external to the cascade. The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure. KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75 C

Not used for cascades

C (FX23-L)

Safety thermostat 230V, not used for cascades

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supplying CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M)

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

X50

3 X30

Common sensor earth

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER. 109

MASTER (main) boiler parameter configuration Using the control panel, access menu 3, and carry out the following settings. Menù

Programme line

Value

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Control of cascade return temperature

Configuration

6046

Ambiance thermostat CR1

Enabling of thermostat in inlet H2 of the AVS75

Configuration

6200

Yes (*)

Memorisation of modifications carried out

LPB

6630

Always

Identification of master boiler

LPB

6640

Autonomous

Description Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature

Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

The pumps of the high temperature zone have to be connected one to each other, and through a relè, linked to the terminal of module AVS75 identified with QX21-N.

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

3541

First – Last – First and Last.

Cascade

After connecting the pump to the relay, set outlet QX22 as shown in the following table.

110

Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of DHW storage on relay QX22

Solutions for centralized heating systems installations

EX21 FX23 L QX23

M H2 M BX22 M BX21

L QX22

X50

T N

3 X30

N QX21

B L

230V

A Flow sensor QAD36 B

Mixing valve

C Mixed zone pump D Safety thermostat In the case of a mixed zone, hook up the safety thermostat between the “FX23-L” terminals and jump the terminals “EX21-FX23”. In this way the circuit pump connected to relay “QX23” is internally connected in series with the safety thermostat. Should it be necessary to use relay outlet “QX23” for functions other than those envisaged for the mixed zone, jump terminals “FX23-L”.

Menù

Programme line

Description

Configuration

6021

Enabling heating circuit 2

RVS46

A Flow sensor QAD36

OCI 345

Outdoor sensor

Mixing valve

Remote control

Mixed zone pump

Menù

Programme line

Parameter

Value

Description

RVS46

Heating circuit 1

741

< 45 °C

Set point of the maxinum temperature for the mixed zone

Note: keep attention to set correctly the address of the device on the LPB bus. The boilers in cascade and the RVS46 must have a different address between each other (n°6600 parameter of each boiler or device as RVS46 present on LPB bus) 111

Cascade installation schemes

1 2 3 4 5 6 7 8 9

OCI 345

100

째C 120 TERMOMETRO

80 100

째C 120 TERMOMETRO

100

째C 120 TERMOMETRO

80 100

째C 120 TERMOMETRO

QAD

Condensing boiler LUNA PLATINUM Manifold pipes for three boilers in cascade Flue tube kit for two boilers Flue tube for the third boiler Flow/return contact sensor Hydraulic separator Interface for cascade installation (OCI 345) Built-in heat boxes LUNA SAT RS2Z Safety device ISPESL (available as optional)

AVS75

Manometro bar

SYSTEM WITH 3 CONDENSING BOILERS LUNA PLATINUM, 1 HIGH TEMPERATURE DIRECT CIRCUIT, BUILT-IN HEAT BOXES LUNA SAT RS2Z

112

Manometro bar

Solutions for centralized heating systems installations Plant with three condensing boilers Luna Platinum in cascade – 1 high temperature direct circuit – 1 heater load circuit DHW For complete management of the cascade you must install Bus Module OCI345 (one in each boiler in cascade) and an expansion module AVS75 external to the cascade. The figure shows the connection of the OCI345s and Expansion Module AVS75.

The connections of Expansion Module AVS75 are highlighted in the figure. KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23)

Connector for hook up between SIEMENS electronic board and accessory AVS 75 C

Not used for cascades

C (FX23-L)

Safety thermostat 230V not used for cascades

S (QX23-L)

Relay outlet 230V programmable

T (QX21-N)

Relay outlet 230V supply CASCADE PUMP

T (QX22-N)

Relay outlet 230V supply any loading PUMP for sanitary water STORAGE

NOL (L-N)

Supply AVS 75

n (H2-M)

AMBIANCE THERMOSTAT connector

EX21 FX23 L QX23

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M)

CASCADE DELIVERY PROBE inlet

n (BX21-M)

CASCADE RETURN PROBE inlet

X50

3 X30

Common sensor earth

For correct plant management you must carry out modifications of the parameters of all the cascade boilers. The first one to configure is the MASTER.

113

MASTER (main) boiler parameter configuration Using the control panel, access menu 3 and carry out the following settings. Menù

Programme line

Value

Configuration

5977

None

Configuration

6020

Multifunctional

Configuration

6030

Heat circ. pump. 1Q2

Configuration

6040

Common delivery probe B10

Configuration

6041

Cascade return probe B70

Control of cascade return temperature

Configuration

6046

Ambiance thermostat CR1

Enabling of thermostat in inlet H2 of the AVS75

Configuration

6200

Si (*)

LPB

6630

Always

LPB

6640

Autonomous

Description Disabling of thermostat on terminal board M1 (1-2) Enabling unit AVS75 Control of circuit 1 pump Control of cascade delivery temperature

Memorisation of modifications carried out Identification of master boiler Setting of master cascade clock

*The value returns automatically to “No” immediately after setting.

Parameter configuration on non-MASTER boiler Having configured he master boiler parameters as described in the previous paragraph, proceed to configuration of the other boilers. The operations listed below are repeated for each boiler in the cascade, excluding the MASTER boiler. For correct system functioning an address must be assigned to each boiler so that it can be recognised by the master boiler (the master boiler has default =1). Moreover it is also necessary to synchronise the boiler clocks with that of the master boiler. Using the control panel, access menu 3 and carry out the following settings. Menù

Programme line

Value

Configuration

5710

OFF

LPB

6600

2..3..4..

LPB

6640

Slave with imp. Remote

Menù

Programme line

Value

Cascade

3540

N° of hours

Cascade

3541

First – Last – First and Last.

After connecting the pump to the relay, set outlet QX22 as shown in the following table.

114

Menù

Programme line

Value

Cascade

6031

actuator HSW Q3

Description Control load pump of HSW storage on relay QX22

Solutions for centralized heating systems installations

Hydraulic separator

300

Hydraulic separator 8,5 m³/h Cod. LSD 790000310 .

203

290

484

811

300

811

399 157,5 The BAXI hydraulic separator has the following features: • body in epoxy-powder coated steel • maximum operating pressure: 10 bar • fitted with automatic air release valve and discharge valve • supplied with sensor input/output port attachment ½”F • insulated in rigid, closed-cell polyurethane foam

157,5

Condensate neutralizer kit Neutralizer filter to process the water deriving from the condensation of BAXI wall hung condensing boilers. Vertical mounting below the boiler. Cod. KHG 714125610 . Maximum condensate water flow

l/h

Max potentiality of the boiler

kcal/h

100.000

Max potentiality of the boiler

Up to 116

Maximum working pressure

bar

Maximum temperature of the water content

°C

Corresponding to the max temperatures of the condensing waters

Min/Max room temperature

°C

5-40

Diameter

87,5

Height

365

Neutralizer kit for wall hung boilers up to 100kW

Neutralizer filter to process the water deriving from the condensation of BAXI condensing boilers in cascade installations. Cod. KHG 714125710 . Maximum condensate water flow

l/h

Max potentiality of the boiler

kcal/h

from 201.000 to 300.000

Max potentiality of the boiler

234-349

Maximum working pressure

bar

Maximum temperature of the water content

°C

Corresponding to the max temperatures of the condensing waters

Min/Max room temperature

°C

5-40

Quantity of the first charge of product

Next recharges

4,5

Dimensions (hxwxd)

260x330x225

Neutralizer kit for wall hung boilers up to 350kW 115

Other accessories Luna Platinum cascade installation flue system Picture

116

Description

Code

PP flue tube kit for two boilers Ø 125/110

KHG 714093211 .

PP flue tube kit for two boilers Ø 160

KHW 714097510 .

PP flue tube kit Ø 200 for two boilers

KHW 714097910 .

PP flue tube kit Ø 125 for the third boiler

KHG 714093311 .

PP flue tube kit Ø 160 for the third boiler

KHW 714097610 .

PP flue tube kit ø200 for the third boiler

KHW 714098010 .

PP shutter kit 110/80 with condensing trap

KHG 714093411 .

PP 90° bend Ø 125

KHG 714094410 .

PP 90° bend Ø 160

KHW 714097810 .

PP 90° bend Ø 200

KHW 714098210 .

PP 45° bend Ø 125 (pack of 2)

KHG 714094510 .

PP tube extension Ø 125 L=1000

KHG 714094610 .

PP tube extension Ø 160 L=1000

KHW 714097710 .

PP tube extension Ø 200 L=1000

KHW 714098110 .

Solutions for centralized heating systems installations

Other accessories Hydraulic accessories for single installation Picture

Description

Code

Transformation kit to LPG (n째 5 nozzles for different outputs)

710438401 .

Heating systems taps and connection pipes

710351201 .

Connection pipes for combi boilers

710351102 .

Connection pipes for heating only boilers

710351001 .

Hydraulic accessories for cascade installation Picture

Description

Code

Manifold pipes for 2 Platinum boilers in cascade

KHG 714117110 .

Manifold pipes for the 3rd Platinum boiler in cascade

KHG 714117210 .

117

118

Solutions for centralized heating systems installations

Power HT 45 - 150 kW Technical chart Dimensions Diagrams Burner-exchanger unit Wiring diagram Wiring diagram for connection to an heating system DHW circuit electric pump connections Flue pipes ( B23) Dual flue system 45-65 kW Dual flue system 85-150 kW Electronics Programming, setting and digital control Single installation Schemes for single installation Cascade installation Schemes for cascade installation Hydraulic separators and condensate neutralizer kit Other accessories

P. 120 121 122 123 124 126 127 128 129 130 131 132 134 137 142 148 152 153

119

Power HT 45-150 kW Power HT is the range of high efficiency floor standing condensing boilers, heating only with an output from 45 to 150 kW ( 80/60°C) The range of boilers is distinguished by high efficiency, easiness of use/and installation and a wide range of accessories for single and cascade installations. The main element of these condensing boilers is the heat exchanger that has a combustion chamber and a stainless steel AISI 316L coils hydraulic circuit . The reduced quantity of water in the exchanger allows a small heat inactivity and so a quick answer to the changes in the heat needed by the system.

1.450

1.650

1.850

1.1000

1.1200

1.1500

Maximum heating heat input

46,4

87,2

102,7

123,2

154

Maximum heating heat output 80/60°C

100

120

150

Maximum heating heat output 50/30°C

48,7

70,3

91,6

107,8

129,7

162

Minimum heat output 80/60°C

11,8

13,4

32,2

35,8

40,4

Minimum heat output 50/30°C

12,8

14,5

34,9

38,8

42,1

43,7

★★★★

Energetic efficiency (Dir CE/92/42) Average efficiency (DIN 4702-T8)

109,8

Nominal efficiency 80/60°C

97,3

97,5

97,4

Nominal efficiency 50/30°C

105,2

105,3

105,1

105

105,3

105,2

107,6

107,3

107,4

107,5

107,2

Load losses water side ∆T=20k

Efficiency at 30%

kPa

23,54

22,56

19,61

Minimum flow on the exchanger

lt/sec

0,27

0,33

0,52

0,58

0,72

0,91

NOx class (EN 483) Minimum working temperature

°C

-5

Heating system max pressure

bar

Safety valve intervention pressure

bar

°C

25/80

l/h

1.935

2.795

3.700

4.300

5.200

6.500

5,1

6,5

13,7

23,3

25,3

lt/h

5,1

7,3

9,6

11,5

13,5

16,9

ø mm

100

Maximum flue mass flow rate

kg/s

0,022

0,031

0,041

0,049

0,059

0,073

Minimum flue mass flow rate

kg/s

0,006

0,007

0,016

0,018

0,019

0,02

Regulation of water temperature in heating circuit Primary circuit water flow (ΔT=20°C) Water content Quantity of condensing Flue tube Flue ducts max length

Maximum flue temperature

°C

Residual flue prevalence

130

120

135

150

115

Comburent air-flow at Qn

kg/sec

0,022

0,034

0,045

0,055

0,065

0,080

Dimensions (h x w x d)

850x450x621

850x450x693

850x450x801

850x450x871

850x450x1024

850x450x1132

Net weight

103

Natural Gas/CPG

Gas type Power consumption

110

100

160

135

235

Power consumption in stand-by way

6,3

120

Solutions for centralized heating systems installations The stainless steel surfaces protect the exchanger from corrosion due to the condensation. The regulation of the various elements of the generator is given to the digital PCB with double micro-processor that allows a simple and reliable managing of the boiler through a control panel with wide LCD display. It is possible to set heating and DHW mode daily or weekly, the climatic regulation according to the comfort requirements of the end-user; faults and possible anomalies are shown. The electronics of the boiler allow the technician an easy access to regulation parameters to set the boiler in order to optimize the performances according to the type of installation.

Dimensions Power HT

RVA placement

Depth (A) mm

45 cm

45 cm/ 2 cm 45 cm/ 2 cm 121

Diagrams The here below graphics, besides better defining the plan of the heating system, allow to deeply analyze the behaviour of the generator in different use conditions. The load loss of the exchangers defines the difference of pressure, in mm of water column, between the flow and return connections of the generator. The flow rate/ head curve explains the dynamic features of the BAXI circulator used as accessory in these boilers. The performance curve presents the changing in the efficiency, as ratio between the output and input of the condensing boiler , according to the return temperature of the boiler. Finally the last graphic explains the flue temperature trends of the boiler according to the return temperature.

EXCHANGER PRESSURE DROP POWER HT 1.450-1.650

HEAD (mH20)

Exchanger pressure drop (mH20)

FLOW RATE/HEAD CURVE

45 kW

65 kW

FLOW RATE l/h

FLOW RATE (l/h)

5,5 5,0 4,5 4,0 3,5 3,0 2,5 2,0 1,5 1,0 0,5

85 kW

100 kW

2000

3000

4000

5000

EXCHANGER PRESSURE DROP POWER HT 1.1200-1.1500

Exchanger pressure drop (mH20)

EXCHANGER PRESSURE DROP POWER HT 1.850-1.1000

112-120 kW

150 kW

6000

FLOW RATE l/h

FLUES TEMPERATURE ACCORDING TO THE RETURN TEMPERATURE

108 107 106 105 104 103 102 101 100 99 98 97

Flues temperature %

Efficiency of the boiler %

EFFICIENCY OF THE BOILER ACCORDING TO THE RETURN TEMPERATURE

30% load 100% load

Return temperature of the system 째C

122

75 70 65 60 55 50 45 40 35 30

100% load

30% load

Return temperature of the system 째C

Solutions for centralized heating systems installations

Burner-exchanger unit The pre-mixing air-gas unit, the burner and the primary exchanger are the components that allow these condensing boilers to offer high performances. The pre-mixing unit is made of the Venturi pipe in the fan inlet and of the mixer that grant constantly to the burner an optimal air-gas ratio independently from the number of turns of the fan limiting to the minimum the consumptions and ensuring always the correct combustion (that means reduction of the pollutant emissions). The stainless steel burner, through the internal spreader and the special micro-perforation of the cylindrical surface, grants a uniform spread of the air-gas mixture independently from his length. The primary exchanger, totally made of stainless steel, is built with two cylindrical flue chambers, vertically positioned ( burner chamber and condensation chamber). Inside the cylindrical surface there are stainless steel coils, in which run the water of the primary circuit. In the upper chamber the warm flues discharge gives heat to the return water of the system, contained in the coils, provoking the condensation of the flues themselves and giving latent heat to the water, pre-heating it before it enters the chamber of the burner. Flue outlet

Power HT 85-100

Power HT 45-65

Flue outlet Primary exchanger

Primary exchanger

Condensation chamber

Burner Burner

fan

Chamber of the burner

Coils Coils fan

Power HT 120-150

venturi-mixer unit

Flue outlet venturi+mixer unit

Primary exchanger

Condensation chamber Burner venturi-mixer unit Chamber of the burner Coils

fan 123

2 1 2 1

FUSE

MAIN INPUT

FAN

1 2 4 5

2 1

2 3

y/g

2 1

2 1 2 1

b b br b b br

11 12 13 14 15 16 17

br b

b br

230V - 50Hz

LOW LOSS HEADER PUMP

br b br b br b

Colour of the cables: C= light blue M= brown N= black R= red G/V= yellow/green B= white

y/g

y/g b br

IX2-01 I X2-02 I X2-03 I X2-04 I X2-05I I X3-01 I X3-02 I X3-03 IX3-04I

br bk b y/g

br b y/g

1 2

CENTRAL HEATING SYSTEM PUMP CONNECTION POINTS

2 3

GAS VALVE

THERMOSTAT FUMES

X30

SAFETY THERMOSTAT

FLAME SENSING ELECTRODE

X40

OUT IN

MIN

I X1-01 I X1-02 I

DOMESTIC HOT WATER PUMP CONNECTION POINTS

DISPLAY

X50

V2 V1

2 1

2 1 2 1

b b bk bk r r

2 1

NTC RETURN HEATING PROBE

b y/g bk br

HYDRAULIC PRESSURE SENSOR

DOMESTIC HOT WATER THANK SENSOR

OUTSIDE SENSOR

SAFETY SHUT-DOWN

ROOM THERMOSTAT

QAA73 CONNECTION

NTC DELIVERY HEATING PROBE

SPARK GENERATOR

1 2 3 4 5 6 7 8 9 10

X11 12 11 10 9 8 7 6 5 4 3 2 1

X12 6 5 4 3 2 1

X15

X14

X13 5 4 3 2 1

IGNITION ELECTRODE

M C G/V

g g br br

2 1 2

I X10-01I X10-02 I X10-03I X10-04 I X10-05 I X10-06 I 4 3 2 1

AGU 2.500

3 2 1

COM

124 NO

OCI 420

Wiring diagram

Power HT 1.450 - 1.650 - 1.850 - 1.1000 The picture explains the wiring diagram of the PCB of the boiler. Sensors and functional components of the generator are controlled by the PCB to which they are connected through the internal connectors shown in the picture. Other 3 connectors reachable from outside the PCB are available to check service devices and regulation of the system ( pumps, outdoor sensor, room thermostat etc)

2 1 2 1

FUSE

MAIN INPUT

FAN

1 2 4 5

2 1

y/g

2 1

2 1 2 1

230V - 50Hz

b b br b b br

11 12 13 14 15 16 17

br b

b br

2 3

PROGRAMMABLE OUTPUT

br b br b br b

IX2-01 I X2-02 I X2-03 I X2-04 I X2-05I I X3-01 I X3-02 I X3-03 IX3-04I

br bk b y/g

Colour of the cables: C= light blue M= brown N= black R= red G/V= yellow/green B= white

y/g

y/g b br

1 2

br b y/g

2 3

CENTRAL HEATING SYSTEM PUMP CONNECTION POINTS

DOMESTIC HOT WATER PUMP CONNECTION POINTS

GAS VALVE 1

THERMOSTAT FUMES

X30

SAFETY THERMOSTAT

FLAME SENSING ELECTRODE

X40

DISPLAY

G/V

GAS VALVE 2

18 19 20

X50

2 1

2 1 2 1

b b bk bk r r

2 1

G/V

SPARK GENERATOR

b y/g bk br

WATER PRESSOSTAT

DOMESTIC HOT WATER TANK SENSOR

OUTSIDE SENSOR

SAFETY SHUT-DOWN

ROOM THERMOSTAT

QAA73 CONNECTION

br - brown bk - black b - blue r - red g - green g/y - green/yellow w - white

1 2 3 4 5 6 7 8 9 10

CENTRAL HEATING TEMPERATURE SENSOR

g g g

X11 12 11 10 9 8 7 6 5 4 3 2 1

X15

X14

X13

X12 6 5 4 3 2 1

IGNITION ELECTRODE

g g br br

2 1 2

I X10-01I X10-02 I X10-03I X10-04 I X10-05 I X10-06 I 5 4 3 2 1

AGU 2.500

4 3 2 1

COM

I X1-01 I X1-02 I

AIR IN

OUT

L OT PI

AIR IN

OUT IN

3 2 1

OCI 420

Solutions for centralized heating systems installations

Wiring diagram

Power HT 1.1200 - 1.500

125

Wiring diagram for connection to an heating system High efficiency floor standing boilers can be easily connected to a heating system through the use of terminal boards which are inside the dashboard. The connections with scheme and indications are shown in the picture below. The pumps of the heating system ( P1 and P2) have to be fed following the scheme of the picture interposing between the PCB of the boiler and the pumps some relĂ¨ It is not necessary to interpose a relĂ¨ if, to the PCB is wired a single pump.

P1 = Pump of the hydraulic separator P2 = Heating system pump SI = Hydraulic separator ( available as accessory) UR = Heating Unit

126

Solutions for centralized heating systems installations DHW circuit electric pump connections The connection of BAXI POWER HT boilers to an indirect cylinder for DHW production can be easily made respecting the connections indicated in the here below picture. The pump of the sanitary circuit P3, serving an outdoor cylinder, must be linked on the Terminal board M3 of the boiler to the terminals 13-14. Connecting the pump of the sanitary circuit P3 after an hydraulic separator ( as explained in the drawing) Link the NTC sensor of sanitary priority, supplied as accessory, to the 9-10 terminals of the terminal board M2 after having removed the actual power resistance. The sensible element of the NTC sensor has to be put in the relevant well foreseen on the cylinder ( see drawing) The regulation of the DHW temperature and the choice of the sanitary hourly programming can be made directly on the control panel of the boiler .

DHW TANK CONNECTION DIAGRAM UB - DHW STORAGE TANK M2 - TERMINAL BOARD SB - DHW PRIORITY SENSOR RE - RESISTOR TO BE REMOVED MR - CENTRAL HEATING FLOW RR - CENTRAL HEATING/DHW RETURN MB - DHW STORAGE TANK FLOW RB - DHW STORAGE TANK RETURN P1 - CENTRAL HEATING PUMP P3 - DHW STORAGE TANK PUMP TS - SAFETY THERMOSTAT PS - SAFETY PRESSURE SWITCH

127

Flue pipes Power HT, open flue range of boilers, are certified for a B23 type of installation. This means that the boiler has to be connected to a chimney through a stainless steel or plastic pipe with an internal diameter of 80 mm ( Power HT 1.450 and Power HT 1.650) or internal diameter 100mm (Power HT 1.850-1.1000-1.1200-1.1500). There are available accessories in smooth PP with a 80mm and 110 mm diameter. To use 110mm flue accessories made of PP it is necessary to use an adaptor 100/110 available, as well, as optional. Important: the horizontal stretches must have a slope towards the third boiler.

Model HT 1.450 HT 1.650 HT 1.850 HT 1.1000 HT 1.1200 HT 1.1500

Max length of the flue pipe -L- (m)

30 20 20 20 20 20

For each 90° bend installed the length For each 45° bend installed the length decreases of (m) decreases of (m)

1 1 1 1 1 1

0,5 0,5 0,5 0,5 0,5 0,5

Chart of the available pressures of the flue pipes Cascade installation Model HT 1.450 HT 1.650 HT 1.850 HT 1.1000 HT 1.1200 HT 1.1500 128

ΔP available with Flue pipe B23 ø100

ΔP available with Single clapet ø110/110

ΔP available with Double clapet ø110/110

150 150 110 150 170 280

110 (with Clapet Ø 80/110) 100 (with Clapet Ø 80/110) 110 110 -

80 120

Solutions for centralized heating systems installations

Dual flue system accessories 45-65 kW Picture

Description

Code

PP tube extension Ø 80 L=1000 mm

KHG 714059411 .

PP tube extension Ø 80 L=500 mm

KHG 714059910 .

PP 90° bend Ø 80

KHG 714059211 .

PP 45° bend Ø 80

KHG 714059311 .

Tube Ø 80 centring kit (pack of 5)

KHG 714037411 .

Clamp centring kit Ø 80

KHG 714106110 .

Tube Ø 80 supporting bracket (pack of 5)

KHG 714037310 .

Internal sealing collar Ø 80

KHG 714018510 .

External sealing collar Ø 80

KHG 714018411 .

Flue terminal Ø 80

LSD 790000150 .

Dual flue terminal Ø 80

KHG 714010410 .

129

Flexible ducting system accessories 45-65 kW

Picture

Description

Code

PP flexible tube Ø 80 L= 1,5 m

KHG 714105710 .

PP flexible tube Ø 80 L= 20 m

KHG 714105810 .

PP 90° bend Ø 80 with supporting bracket and condensate drainings

KHG 714105910 .

PP 90° bend Ø 80 with supporting bracket (pack of 3)

KHG 714106010 .

Flexible centring kit Ø 80 (pack of 3)

KHG 714106210 .

Triple lips gaskets kit Ø 80 (pack of 5)

KHG 714111210 .

Dual flue system accessories 85-150 kW Picture

130

Description

Code

PP tube extension Ø 110 L=1000 mm

KHW 714097110 .

PP tube extension Ø 110 L=500 mm

KHW 714097010 .

PP reduction kit from Ø 110 to Ø 100

KHW 714096910 .

PP 87° bend Ø 110

KHW 714097310 .

PP 45° bend Ø 110

KHW 714097210 .

Solutions for centralized heating systems installations

Electronics Power HT range of boilers is provided with a fully digital control panel: dedicated push-buttons for each single function and wide LCD display combining symbols and codes for information about the boiler's working allowing an easy reading and an immediate parameter control, programming and setting. • Microprocessor with double CPU: a new technology software for the boiler optimal operation • Built-in daily timer to program both central heating and DHW functions • Programmable pre-heating function of the DHW circuit to reduce waiting times • Digital electronic thermometer • Self-check: detection and description of any possible fault • Built-in climatic regulation (outdoor sensor supplied as optional) • Automatic summer/winter switch with outdoor sensor connected • Cascade system installation option • Mixed systems (high and low temperature) installations option • Interface PCB, available as optional, connectable for supplementary functions such as remote control of fault/operation signals, control of additional pumps, control of boiler output by an external electronic device, etc.

Setting heating mode

Working in DHW circuit: ON-OFF

Heating temperature regulation

Information: -DHW temperature -Outside temperature (if connected to the outdoor sensor)

DHW temperature regulation

Reset Programmes access and shift

Programmes access and shift

Parameters regulation UP Parameters regulation DOWN

131

Programming, setting and digital control Picture

132

Model

Description

Code

Boiler interface for mixed systems with two different temperatures (AGU 2.500+QAD36)

Through this accessory the boiler is able to manage a mixed system with a high and a low temperature zone, The accessory manages directly the components of the low temperature circuit as the mixing valve, the circulating pump and the NTC sensor, to measure the temperature of this circuit.

KHG 714077913 .

Boiler control interface 0-10 V (AGU 2.511)

Through this accessory the boiler is able to change the heat output according to a voltage signal ( 0+10V) coming from a programmable controller (PLC) out of the boiler. Then, it is possible to connect the outdoor lamps to show the block of the system or functioning.

KHG 714107612 .

Remote controller and climatic regulator ( QAA73)

Climatic regulator, directly connectable to the boiler. It allows the data exchange with the PCB of the boiler. Besides the crono-thermostat and climatic regulator functions it is also a remote control that allows the regulation of parameters of the boiler.

KHG 714072612 .

Outdoor sensor ( QAC34)

The outdoor sensor QAC34 is a temperature indicator that communicates to the boiler the outdoor temperature so that the boiler adapts the flow temperature to the comfort set by the end-user.

KHG 714072811 .

Temperature regulator for mixed systems (RVA46), It includes a temperature sensor ( QAD21)

The temperature regulator that allows to control a mixed zone (a low temperature zone). It is able to manage a mixing valve, a pump and a flow sensor of the controlled zone. Then, it can exchange data with the PCB of the boiler by bus.

KHG 714078112 .

Boiler interface for climatic regulators RVA46 and RVA47 (OCI420)

OCI 420 is an electronic device that allows data exchange by bus between the electronics and the temperature regulator RVA 46, RVA47. The interface allows also the remote control of the boiler.

KHG 714078013 .

Cascade controller (RVA47) it includes a temperature sensor ( QAD21)

Temperature regulator for cascade systems, allows up to 12 boilers connection ensuring functioning and efficiency optimization. It manages a high temperature zone with its pump, a storage tank with its pump and temperature sensor.

KHG 714078212 .

Solutions for centralized heating systems installations

Dimensions

936,5

136,5

800

Power HT from 45 to 150 kW

986,5

186,5

850

800

400

678,5

526

524

133

Single installation

with Power HT boilers from 45 to 150 kW

Manifold pipes single boiler/last boiler Return manifold

Second pump hydraulic connection

Shutting valve

Boiler-manifold pipe hydraulic connection

No return valve Expansion vessel hydraulic connection

Shutting valve Safety valve

Flow manifold

134

Solutions for centralized heating systems installations

Single installation Manifold pipes single boiler/last boiler Power HT models

Code

Kit made of:

45-150 kW

KHW 714104210 .

• Flow manifold • Return manifold

Second pump hydraulic connection Power HT models

45-150 kW

Code

Kit made of:

KHW 714098611 .

• 2 way interception valve • UPS32/80 circulating pump • Restraint valve • Hydraulic joints

Boiler-manifold pipe hydraulic connection Power HT models

45-150 kW

Code

Kit made of:

KHW 714104311 .

• Return shut-off valve • Circulating pump UPS 32/80 • No return valve • Expansion vessel hydraulic connection • Return flow valve

135

Controller bus interface connection OCI 420 is an electronic device that allows data exchange by bus between the PCB and the temperature regulator RVA 46.

After removing the cover of the control panel, mount the plate (B) supplied with OCI 420, and so mount the accessory as well (C). The flat cable (A) have to be linked to the connector X40 of the electronics of the boiler. Connect the wiring ( respecting the polarity) between the connector X41 of the accessory OCI 420 and the connector MB-DB of the RVA46. Note: to make the connection easy between the accessory and the electronics, connect the wiring ( A) to the PCB before fixing the plate (b). To allow the mounting of the cover of the control panel it is necessary to cut the two plastic pins which are on the cover just next to the OCI 420.

136

mmH2O

mbar

Manometro

OCI 420

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

bar

°C

100

120

QAD

TERMOMETRO

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

SYSTEM MADE OF 1 HIGH EFFICIENCY CONDENSING BOILER POWER HT, 1 DIRECT HIGH TEMPERATURE CIRCUIT, 1 LOW TEMPERATURE MIXED CIRCUIT, 1 CIRCUIT FOR THE TANK LOAD WITH SOLAR INTEGRATION OPTION

Manometro

1 High efficiency floor standing condensing boiler POWER HT 2 Safety device ISPESL (available as optional) 3 Reduction kit 100/110 4 Hydraulic separator 5 Outdoor sensor QAC34 6 Interface for a two temperatures mixed system (AGU 2.500) 7 Flow or return sensor for AGU 2.500 (QAD 36) 8 DHW sensor 9 Double coil storage tank (DC) for integration with solar systems (option) 10 Thermostatic mixer

°C TERMOMETRO

100

120

Solutions for centralized heating systems installations

Single installation schemes

137

Single installation schemes

OCI 420

MB - DB

DN 50

°C TERMOMETRO

120

100

°C TERMOMETRO

100

120

1 High efficiency floor standing condensing boiler POWER HT 2 Manifold pipes single boiler 3 Flue tubes for single boiler 4 Safety device ISPESL (available as optional) 5 Interface for a two temperatures mixed system (AGU 2.500) 6 Hydraulic separator 7 Pipe in tank cylinder – UBPT 1000 8 DHW sensor 9 Climatic regulator for mixed system RVA46 10 Cylinder sensor 11 Circulating group 12 “ECO” solar controller 13 Automatic air - vent 14 Solar collectors SB25 15 Collectors sensor

mmH2O

mbar

Manometro

°C TERMOMETRO

°C

TERMOMETRO

°C

TERMOMETRO

100

120

100

120

100

120

RVA 46

M/B1

100

120

°C TERMOMETRO

100

120

All'impianto di Riscaldamento

°C TERMOMETRO

QAD

RVA 46

MB/DB Y1/Y2

Allo scarico

SYSTEM MADE OF 1 HIGH EFFICIENCY CONDENSING BOILER POWER HT, 1 PIPE IN TANK CYLINDER FOR HEATING AND DHW PRODUCTION INTEGRATION

M/B1

°C

100

120

QAD

TERMOMETRO

°C

TERMOMETRO

100

120

ECO

°C

TERMOMETRO

100

120

To the end-user

138

MB/DB Y1/Y2

mmH2O

mbar

Manometro

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

High efficiency floor standing condensing boiler POWER HT Manifold pipes single boiler Flue tubes for single boiler Hydraulic separator Outdoor sensor QAC34 DHW sensor Single coil tank SC Safety device ISPESL (available as optional)

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

SYSTEM MADE OF 1 HIGH EFFICIENCY CONDENSING BOILER POWER HT, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT

1 2 3 4 5 6 7 8

°C TERMOMETRO

100

120

Solutions for centralized heating systems installations

Single installation schemes

139

QAZ 21

Single installation schemes

mmH2O

mbar

Manometro

AGU 2.500

t Fla

lar

s tor

llec

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

bar

°C

100

120

QAD

TERMOMETRO

°C

100

120

rs cto olle rc

ola ts Fla

TERMOMETRO

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

ECO

°C

TERMOMETRO

100

120

1 High efficiency floor standing condensing boiler POWER HT 2 Manifold pipes single boiler 3 Flue tubes for single boiler 4 Interface for a two temperatures mixed system (AGU 2.500) 5 Safety device ISPESL (available as optional) 6 Hydraulic separator 7 Outdoor sensor QAC34 8 DHW sensor 9 Solar circulating group 10 Solar controller “ECO” 11 Double coil storage tank (DC) 12 SB25 solar collectors 13 Collectors sensor 14 Tank sensor

QAZ 21

SYSTEM MADE OF 1 HIGH EFFICIENCY CONDENSING BOILER POWER HT, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 MIXED CIRCUIT, 1 LOAD TANK CIRCUIT WITH INTEGRATION WITH SOLAR SYSTEMS

140

Manometro

Solutions for centralized heating systems installations

Dimensions

186,5

936,5

136,5

800

450mm or 20mm between boilers in cascade depending on manifold accessory used Flow/return manifols squared 100x100 with flanges DN80 PN6

20 450

450

436,5

141

Cascade installation with Power HT boilers from 45 to 150 kW Flue tube kit for two boilers From ø 160 to ø 200

Flue tube kit for the third boiler From ø 160 to ø 200

Shutter kit with condensing trap From ø 110 to ø 110 Manifold pipes boilers in cascade Reduction From ø 110 to ø 100

Manifold pipes single boiler/last boiler

Return manifold

Shutting valve

Hydraulic connection for 2nd pump

No return valve

3 way interception valve safety valve

flow manifold

Boiler-manifold pipe hydraulic connection 142

Solutions for centralized heating systems installations

Cascade installations Manifold pipes single boiler/last boiler Power HT models

Code

Kit made of:

45-150 kW

KHW 714104210 .

• Flow manifold • Return manifold

Boiler-manifold pipe hydraulic connection Power HT models

45-150 kW

Code

Kit made of:

KHW 714104311 .

• Return shut-off valve • Circulating pump UPS 32/80 • No return valve • Expansion vessel hydraulic connection • Return flow valve

Hydraulic connection for 2nd pump Power HT models

45-150 kW

Code

Kit made of:

KHW 714098611 .

• 2 way interception valve • UPS32/80 circulating pump • Restraint valve • Hydraulic joints

Manifold pipes boilers in cascade Power HT models

Code

Kit made of:

45-150 kW (45 cm between the boilers)

KHW 714099010 .

• Flow manifold • Return manifold

45-150 kW (2 cm between the boilers)

KHW 714103610 .

• Flow manifold • Return manifold

143

Information for the calculation of the diameter of the manifold pipes ( A) and of the chimney (B) The chart in the following page indicates the diameters of the manifold pipes and of the chimney for various configurations of boilers in cascade and for different heights of the chimney.

Remarks • Distance of the manifold from the first boiler to the vertical chimney: 2 meters • Shutter kit installed in each boiler in cascade • The pipes of the chimney and the connections between the manifold pipes of the cascade and the chimney are not supplied by BAXI • The manifolds in cascade over 200mm diameter are not supplied by BAXI • The calculation has been made assuming a PP "double wall" flue duct

144

Solutions for centralized heating systems installations Information for the calculation of the diameter of the manifold pipes (A) and of the chimney (B) N° of boilers in cascade

HT 1.450

HT 1.650

HT 1.850

HT 1.1000

HT 1.1200

HT 1.1500

Nominal output Total 80°/60° C (kW)

130

170

200

240

300

Manifold pipe Ø mm (A)

125

160

Chimney flue Ø mm (B) -H= 5-10 m

125

160

200

Chimney flue Ø mm (B) -H=10-15 m

125

160

200

Chimney flue Ø mm (B) -H=15-20 m

125

160

200

Nominal output Total 80°/60° C (kW)

135

195

255

300

360

450

Manifold pipe Ø mm (A)

125

160

200

Chimney flue Ø mm (B) -H= 5-10 m

125

160

200

Chimney flue Ø mm (B) -H=10-15 m

125

160

200

Chimney flue Ø mm (B) -H=15-20 m

125

160

200

250

Nominal output Total 80°/60° C (kW)

180

260

340

400

480

600

Manifold pipe Ø mm (A)

125

160

200

Chimney flue Ø mm (B) -H= 5-10 m

160

200

250

Chimney flue Ø mm (B) -H=10-15 m

160

200

250

Chimney flue Ø mm (B) -H=15-20 m

160

200

300

Nominal output Total 80°/60° C (kW)

225

325

425

500

600

750

Manifold pipe Ø mm (A)

160

200

160

200

250

Chimney flue Ø mm (B) -H= 5-10 m

160

200

250

Chimney flue Ø mm (B) -H=10-15 m

160

200

250

300

Chimney flue Ø mm (B) -H=15-20 m

160

200

250

300 145

Controller bus interface connection OCI 420 is an electronic device that allows data exchange by bus between the PCB and the temperature regulator RVA 46, RVA 47.

After removing the cover of the control panel, mount the plate (B) supplied with OCI 420, and so mount the accessory as well (C). The flat cable (A) have to be linked to the connector X40 of the electronics of the boiler. Connect the wiring ( respecting the polarity) between the connector X41 of the accessory OCI 420 and the connector MB-DB of the RVA46, RVA 47. Note: to make the connection easy between the accessory and the electronics, connect the wiring ( A) to the PCB before fixing the plate (b). To allow the mounting of the cover of the control panel it is necessary to cut the two plastic pins which are on the cover just next to the OCI 420

146

Solutions for centralized heating systems installations Temperature regulator for boilers in cascade RVA47 Temperature regulator for cascade systems, allows up to 12 boilers connection ensuring functioning and efficiency optimization. It manages a high temperature zone and pump, and a storage tank. It manages in the best way the boilers in cascade caring the modulation of the outputs and turning the time for switching-on to make the functioning timing of the various boilers in cascade uniform. The managing has this functioning: in case of need of heat. RVA47 will switch-on the first boiler increasing the power slowly. If the output is still not sufficient to satisfy the need, RVA47 will switch the second boiler on, that together with the first, will repeat the increase of the output. The cycle will be repeated for each single new switching-on of the boiler and in case of reduction of the heat load, the cycle will be made in the opposite way. The aim is to optimize the functioning of the system. This climatic regulator has the availability to manage 1 zone of the high temperature system, a pump and DHW. A RVA47 manages up 12 boilers in cascade, each one supplied with OCI 420 and 2 yjeces RVA46. N.B. accessory that can be used only with OCI 420 and outdoor sensor Supplying: RVA47+QAD21+connectors (KHG 714078212). Connections of the climatic regulator RVA47 for boilers in cascade RVA47 Room thermostat inlet Pump of the tank

Return sensor

Pump of the heating system

Storage tank sensor Flow sensor

Power 230V AC Back view

LINE ENGINE

147

Cascade installation schemes

1 High efficiency floor standing condensing boiler POWER HT 2 Safety device ISPESL (available as optional) 3 Manifold pipes two boilers in cascade 5 Shutter kit 6 Reduction kit 100/110 7 Hydraulic separator 8 Outdoor sensor QAC34 9 Interface for climatic regulators RVA46 and RVA47 (OCI 420) 10 Climatic regulator for boilers in cascade RVA47 11 Flow or return sensor for RVA46 and RVA47 12 DHW sensor for RVA47 (QAZ21) 13 Double coil tank (DC) for integration with solar systems (option) 14 Thermostatic mixer 15 Built-in heat boxes RH+2C

mmH2O

mbar

Manometro

CONT 2

CONT 1

OCI 420

CONT 2

CONT 1

QAD

M/B70

MB/DB

10 RVA 47

Q3 Q1

QAD

°C TERMOMETRO

100

120

°C

TERMOMETRO

100

120

°C

TERMOMETRO

100

120

CONT 2

°C

TERMOMETRO

100

120

CONT 1

QAZ 21

CONT 2

CONT 1

SYSTEM MADE OF 2 HIGH EFFICIENCY CONDENSING BOILERS POWER HT, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT WITH INTEGRATION WITH SOLAR SYSTEMS (OPTION), BUILT-IN HEAT BOXES RH+2C

°C

TERMOMETRO

100

120

148

M/B3 M/B10

mmH2O

mbar

Manometro

OCI 420

QAD

M/B70

MB/DB

RVA 47

QAD

M/B3 M/B10

Q3 Q1

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

°C TERMOMETRO

100

120

SYSTEM MADE OF 2 HIGH EFFICIENCY CONDENSING BOILERS POWER HT, 1 HIGH TEMPERATURE DIRECT CIRCUIT, 1 LOAD TANK CIRCUIT WITH INTEGRATION WITH SOLAR SYSTEMS (OPTION)

OCI 420

1 High efficiency floor standing condensing boiler POWER HT 2 Manifold pipes two boilers in cascade 3 Flue pipes for two boiler 4 Shutter kit 5 Hydraulic separator 6 Outdoor sensor QAC34 7 Interface for climatic regulators RVA46 and RVA47 (OCI 420) 8 Climatic regulator for boilers in cascade RVA47 9 Flow or return sensor for RVA46 and RVA47 10 DHW sensor for RVA47 (QAZ21) 11 Double coil tank (DC) for integration with solar systems (option) 12 Safety device ISPESL (available as optional)

Solutions for centralized heating systems installations

Cascade installation schemes

149

Cascade installation schemes

OCI 420

QAD

M/B70

MB/DB

10 RVA 47

MB/DB

QAD

M/B1

RVA 46

Q2 M/B1 RVA 46

Y1/Y2

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAD

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

°C TERMOMETRO

100

120

QAZ 21

Manometro

bar

Manometro

bar

1 High efficiency floor standing condensing boilers POWER HT 2 Safety device ISPESL (available as optional) 3 Flue pipes for two boilers in cascade 4 Flue pipes for the third boiler 5 Shutter kit 6 Reduction kit 100/110 7 Hydraulic separator 8 Outdoor sensor QAC34 9 Interface for climatic regulators RVA46 and RVA47 (OCI 420) 10 Climatic regulator for boilers in cascade RVA47 11 Climatic regulator for mixed system RVA46 12 Flow or return sensor for RV 46 and RVA47 13 DHW sensor for RVA 47 (QAZ21) 14 Double coil tank (DC) for integration with solar systems (option) 15 Thermostatic mixer

mmH2O

mbar

Manometro

Q3 Q1

°C

TERMOMETRO

100

120

SYSTEM MADE OF 3 HIGH EFFICIENCY CONDENSING BOILERS POWER HT, 2 HIGH TEMPERATURE DIRECT CIRCUITS, 1 LOAD TANK CIRCUIT WITH INTEGRATION WITH SOLAR SYSTEMS (OPTION)

150

M/B3 M/B10

OCI 420

QAD

M/B70

MB/DB

RVA 47

QAD

째C TERMOMETRO

100

120

째C TERMOMETRO

100

120

bar

Manometro

bar

TERMOMETRO

째C

100

120

TERMOMETRO

째C

100

120

SYSTEM MADE OF 3 HIGH EFFICIENCY CONDENSING BOILERS POWER HT, 1 HIGH TEMPERATURE DIRECT CIRCUIT, BUILT-IN HEAT BOXES RS2Z

mmH2O

mbar

Manometro

M/B10

Manometro

1 High efficiency floor standing condensing boilers POWER HT 2 Manifold pipes two boilers in cascade 3 Flue pipes for two boilers in cascade 4 Flue pipes for the third boiler 5 Shutter kit 6 Hydraulic separator 7 Interface for climatic regulators RVA46 and RVA47 (OCI 420) 8 Climatic regulator for boilers in cascade RVA47 9 Flow or return sensor for RVA46 and RVA47 10 Built-in heat boxes LUNA SAT RS2Z 11 Safety device ISPESL (available as optional)

Solutions for centralized heating systems installations

Cascade installation schemes

151

Hydraulic separator For the theoretical explanation of the hydraulic separator see pages from 60 to 63

330

811

484 143

365

484 290

Hydraulic separator HS 28 da 28m3/h – flanged joints ø 80 PN 16. Weight Kg 51 - Cod. LSD 790000330 .

290

484

450

264,5

1279

263

450

1279

365

450

263

Hydraulic separator HS 18 da 18m3/h – flanged joints ø 65 PN 16. Weight Kg 39 - Cod. LSD 790000320 .

1279

Hydraulic separator HS 8,5 da 8,5m3/h – 2” traded joints Weight Kg 11,8 - Cod. LSD 790000310 .

Hydraulic separator HS 56 da 56m3/h – flanged joints ø 100 PN 16. Weight Kg 55 - Cod. LSD 790000340 .

Condensate neutralizer kit Neutralizer filter to process the water deriving from the condensation of BAXI condensing boilers in cascade installations Cod. KHG 714125710. To install the neutralizer kit it is necessary to install Power HT at least at 12 cm from the floor. Recharge for the neutralizer kit (output up to 350 kW) available Cod. KHG 714135410. Maximum condensate water flow

l/h

Max potentiality of the boiler

kcal/h

da 201.000 a 300.000

Max potentiality of the boiler

234-349

Maximum working pressure

bar

Maximum temperature of the water content

°C

Corresponding to the maximum temperature of the condensate waters

Min/Max room temperature

°C

5-40

Quantity of the first charge of product

Next recharges

4,5

Dimensions (hxwxd)

260x330x225

152

290

203

290

484

811

398

1069

230

157,5

300

399

300

157,5

264,5

Solutions for centralized heating systems installations

Other accessories Flue accessories for Power HT cascade installation Picture

Description

Code

PP flue tube kit for two boilers Ø 160

KHW 714097510 .

PP flue tube kit for two boilers Ø 200

KHW 714097910 .

PP flue tube kit for third boilers Ø 160

KHW 714097610 .

PP flue tube kit for third boilers Ø 200

KHW 714098010 .

PP 90° bend Ø 160

KHW 714097810 .

PP 90° bend Ø 200

KHW 714098210 .

PP tube extension Ø 160 L=1000

KHW 714097710 .

PP tube extension Ø 200 L=1000

KHW 714098110 .

Other accessories Flue accessories for Power HT 45-65 kW cascade installation Picture

Description

Code

PP flue tube kit for two boilers Ø 125/110

KHG 714093211 .

PP flue tube kit for two boilers Ø 125

KHG 714093311 .

PP shutter kit Ø 110/80 with condensing trap

KHG 714093411 .

PP 90° bend Ø 125

KHG 714094410 .

PP 45° bend Ø 125 (pack of 2)

KHG 714094510 .

PP tube extension Ø 125 L=1000

KHG 714094610 . 153

Other accessories Flue accessories for Power HT 85-150 kW cascade installation Picture

Description

Code

PP shutter kit Ă&#x2DC; 110/110 with condensing trap

KHW 714097410 .

PP reduction kit Ă&#x2DC; 110/100

KHW 714096910 .

Hydraulic accessories for single installation

Picture

Description

Code

Manifold pipes single boiler/last boiler

KHW 714104210 .

Boiler - manifold pipe hydraulic connection

KHW 714104311 .

2nd pump hydraulic connection

KHW 714098611 .

Hydraulic accessories for cascade installation

Picture

154

Description

Code

Manifold pipes single boiler/last boiler

KHW 714104210 .

Boiler - manifold pipe hydraulic connection

KHW 714104311 .

2nd pump hydraulic connection

KHW 714098611 .

Manifold pipes boiler in cascade (45 cm between the boilers)

KHW 714099010 .

Manifold pipes boiler in cascade (2 cm between the boilers)

KHW 714103610 .

Solutions for centralized heating systems installations

Other accessories Thermoregulation Picture

Description

Code

Room sensor: it can be installed only with RVA46 (QAA50)

KHG 714078410 .

Installation box for RVA controllers

KHG 714096610 .

Motor for the mixing valve

KHG 714078511 .

Mixing valve G1”

KHG 714078310 .

Mixing valve G1/2”

KHG 714078610 .

Mixing valve G3/4”

KHG 714078710 .

Heating flow/return sensor for RVA46 and RVA47 (QAD21)

KHG 714078810 .

Heating flow/return sensor for AGU 2.500 (QAD36)

KHG 714078910 .

Hot water temperature sensor for RVA47 (QAZ21)

KHG 714079010 .

Hot water temperature sensor

KHG 714076810 .

155

156

Solutions for centralized heating systems installations

Power HT 230-320 kW Technical chart Dimensions Diagrams Burner exchanger unit Wiring diagram Connection to a heating system and boiler for DWH production Flue pipes Dual flue system installation Electronics Programming, setting and digital control Single installation schemes Cascade installation dimensions Cascade installation schemes Hydraulic separators and condensate neutralizer kit Other accessories

P. 158 159 160 161 162 163 164 165 166 167 169 178 182 185 186

157

Power HT 230-320 kW The POWER HT (models HT 1.230- HT 1.280 and HT 1.320) range of floor standing boilers is composed of heating-only condensing boilers with an output from 230 to 320 kW (at 50°/30°C). The series is made up of three models and stands out for its high performance and ease of use and installation. These high power boilers are fitted with a high efficiency Aluminium-Silicon exchanger specially designed for this type of boiler. The relatively low water content inside the exchanger reduces heat inertia thereby allowing extremely rapid responses to the frequent variations in heat demand typical of modern centralised systems. The heat insulation in glass wool minimises heat dispersion outwards.

Nominal heat output

Power HT 1.230

Power HT 1.280

Power HT 1.320

215,0

260,0

305,0

Maximum heating heat output (80/60°C)

210,5

254,8

294,0

Maximum heating heat output (50/30°C)

229,8

278,2

321,3

Minimum heat output (80/60°C)

33,5

40,2

45,9

Minimum heat output (50/30°C)

37,4

44,9

51,4



Energetic efficiency 92/42/CEE Average efficiency (DIN 4702-T8) (75/60°C)

106,6

106,7

Average efficiency (DIN 4702-T8) (40/30°C)

109,6

109,7

Nominal efficiency (80/60°C)

97,9

98,0

Nominal efficiency (50/30°C)

106,9

107,0

107,1

Efficiency at 30%

105,4

105,6

105,7

Minimum flow on the exchanger (80/40°C)

l/h

4555

5515

6360

°C

-5

NOx Class (EN 483) Minimum working temperature Water content

34,0

42,5

51,0

Condensation quantity (50/30°C)

l/h

25,3

30,7

35,4

Maximum working pressure

bar

Maximum flow temperature

°C

Flue ducts max length

40 (Ø200)

Maximum flue mass flow rate

kg/s

0,097

0,118

0,136

Minimum flue mass flow rate

0,0207

kg/s

0,015

0,018

Maximum flue temperature (80/60°C)

°C

Residual fan prevalence

100

Supply air flow @ Qn

m³/h

272,7

329,7

380,5

Dimensions (hxwxd)

1410x692x1269

1410x692x1362

1410x692x1452

Net weight

240

295

345

Gas type

Natural Gas / LPG

Power consumption

330

380

Reduced power consumption

Power consumption in stand-by

3,5

Possible maximum length of the outdoor sensor cable

< 20m (0,8mm²)

< 80m (1,0mm²)

< 120m (1,5mm²)

158

450

Solutions for centralized heating systems installations Electronic adjustment is just like that used for wall-mounted high power boilers: digital electronic circuit with double CPU fitted with large display LCD control panel offering a modulation range of 1:6. The electronics permit daily and weekly programming of heating and DHW functions as well as climatic setting and the visualisation of error messages relating to any faults. Up to a maximum of three mixed zones can be controlled by use of a clip-in to install inside the boiler. The boiler is preset for functioning independently of the environment air (the air-flue duct is fully insulated from the installation environment), and the presence of a check valve on the air-flue circuit enables installation in cascade without having to apply an external flue shutter.

Dimensions

Power HT 230-320 kW

Flow

Flange DN 65

Return Flange DN 65

Power HT

1.230

1.280

1.320

Depth (A) mm

1.269

1.362

1.452

159

Diagrams As well as illustrating the heating system layout the figures below enable more detailed analysis of generator behaviour in various conditions of use. The first graph shows the exchanger pressure drop, to permit correct sizing of the boiler circulator. The annual heat production in relation to outdoor temperature shows the length of time for which the boiler will use the condensing function as a percentage of the annual heating period. The lowest outdoor temperatures, considered for the size of the generator, are in fact rarely reached during the winter period; in the remaining part of the year the boiler works at lower power, achieving higher efficiency thanks to condensing. The third graph shows boiler efficiency in relation to the power output. As may be observed, at reduced power (the most frequent functioning condition of the boiler) efficiency increases considerably.

EXCHANGER PERSSURE DROP

T RH

Water side resistance (mbar)

1000

1.3

0 30 .28 WE 1.2 HT 1 PO T H ER ER W OW PO P

100

1 1

100

10 Flow rate (m³/h)

EFFICIENCY OF THE BOILER ACCORDING TO THE OUTPUT

Hea

ting

Hea

ting

flow

Dew point = 54 °C

retu

Outdoor temperature °C

160

Efficiency %

Caracteristic curve

Heating water temperature °C

% Time of heating functioning in a year

HEAT PRODUCTION ACCORDING TO THE OUTDOOR TEMPERATURE

Output %

Solutions for centralized heating systems installations

Burner-exchanger unit The premixing air-gas unit, burner and primary exchanger are the components which enable these condensing heat generators to ensure high performance. In the premixing unit combustion air is combined with the gas coming from the valve to ensure a constant optimal air/ gas supply regardless of the number of revs of the fan, limiting consumption to a minimum and ensuring constantly correct combustion so as to reduce the pollutants released. This component, combined with the boilerâ&#x20AC;&#x2122;s cutting edge electronics, also helps to save energy and maximise performance achieving a modulation range of 1:6 so as to enable the generator to adapt to large variations in heat demand, as happens increasingly in new generation multi-property buildings. The burner is cylindrical and made from steel fibre with length depending on the power of the boiler. This results in resistance to high temperatures, a very short flame edge for optimal irradiation of the heat and to minimise the formation of nitrogen oxides, and a uniform distribution of the air/gas mixture along the entire modulation range. The primary, high efficiency aluminium silicon exchanger has been developed using the latest simulation techniques to optimise flows of the exhaust gas and water in the primary circuit. The special shape of the exchanger distributes the heat evenly by irradiation in the upper part of the exchanger. In the central part heat is transmitted by convection. The distance and shape of the grid of cylinders produces uniform and efficient heat transmission. The exhaust gases are condensed in the lower part of the exchanger. Here the exhaust gases, depending on the modulation, are cooled almost to the temperature of the return water of the primary circuit. This way the energy contained in the exhaust gases is used up, apart from the 1-2% of inevitable physical loss. A uniform distribution of the heat, and heat output of the exchanger is achieved by means of the water circuit. Thanks to over-sizing of the water circuit hydraulic pressure drops are reduced as are the dangers resulting from limescale obstructions. The upper part of the exchanger forms the combustion chamber. EXCHANGER

BURNER

Burner pipe

Plate of the burner

Fan Mixing unit Middele section of the exchanger Air intake with silencer

Water side

Gas valve

Gas inlet Shutter kit

Flue side 161

Wiring diagram Power HT 230-320 kW

The figure shows the wiring diagram for the boiler PCB connectors. Sensors and functional components of the generatorare controlled by the PCB to which they are connected by means of internal connectors highloghted in the figure Other connectors accessible externally to the board are available for checking the devices servicing and regulating the thermal plant ( pumps, outdoor sensor, room thermostat etc..).

PCB

162

bl = br = gnge = or = rs = rt = sw = ws = vi =

blue brown green/yellow orange pink red black white purple

Legend: ATF B1 BE Bus BE Bus EM

Outside temperature monitor QAC 34 Ionization electrode Operator selection Bus connection for operator selection Bus connection for extension module

BX1..3 F4 FB H1,4,5 GW H6 HP KRF KVF M4 P1

Multificational sensor input *) Water pressure monitor Remote control *) Multifunctional input *) Gas pressure monitor Input for gas pressure monitor Heating circuit pump Boiler return sensor QAL 36 Boiler flow sensor QAL 36.670 Burner fan PWM control output

S1 S2 STB T1 TWF TZP X11 X12,13 Y2

Operating switch Reset switch burner control Safety temperatur limiter Ignitor transformer DHW sensor QAZ 36 DHW circulation pump *) Interface bus module Sevice interfaces Gas magnet valve

accessories

Solutions for centralized heating systems installations Connection to a heating system and boiler for DWH production The high-power, floor standing condensing boilers in the POWER HT 1.230 â&#x20AC;&#x201C; 1.280 and 1.320 range are easy to connect to a heating system and indirect boiler for the production of domestic hot water. Such connection, made with reference to the technical diagram, should be performed as follows: always provide a hydraulic separator or, alternatively, a plate exchanger for the separation of the boiler circuits from those of the heating system. The KP pump (boiler pump) should be connected to the QX1 terminals of the electronic circuit situated under the top cover of the boiler. The HP pump on the heating circuit should be connected to the QX2 terminals of the circuit and the boiler pump (TLP) connected to the QX3 terminals. As regards the temperature sensors, the system flow sensor (VFK) should be connected to the terminals BX1, the boiler sensor (TWF) to the TWF terminals and the outdoor sensor (ATF) to the ATF terminals. The room sensor for regulating the heated area, if present, should be connected to the FB terminal board of the circuit.

ATF HP TLP KP TWF VFK FB

outdoor sensor heating pump high temperature zone cylinder sensor boiler pump cylinder sensor system flow sensor room sensor

The following parameters to be set on the PCB MenĂš 5890 5891 5892 5930

Function Relay outlet QX1 Relay outlet QX2 Relay outlet QX3 Input sensor BX1

Setting Boiler pump Heating circuit pump 1Q2 Cylinder pump Q3 Flow senser B10

163

Flue-intake pipes Flexible, easy installation of the boiler is possible using the accessories provided. The air/fumes pipe is fully isolated from the installation area of the boiler. The fumes attachment is positioned at the top of the boiler, while the air intake is on the bottom, at the back. In any case, both the position of the fumes exit and of the air intake can be easily modified as shown in the diagram below. Specifically, the fumes exit can be moved to the lower back or lower side of the boiler using a 90° bend, while the air intake can be moved to the side at the bottom.

1. 2. 3. 4. 5.

Remove lower rear wall (2) of the Power HT Remove the gas connection leading upward and make a 87°arc (1) Turn 87°arc (1) in the desired position (side or towards the rear) Remove either the rear cover plate (3) or the side cover plate (4) Mount lower rear wall (2)

Side supply air connection (A) 1. Remove lower rear wall (3) 2. Remove the covering panel (2) 3. Mount the bend of the intake pipe (1) 4. Turn intake pipe elbow into the side position (1) 5. Mount lower rear wall (3)

Rear supply air connection (B) 1. Remove lower rear wall (2) 2. Take out cover plate (3) 3. Mount straight intake pipe 4. Mount lower rear wall (2)

Max lengths for the flue pipes with room air dependent working (type B installation) Model Flue pipe

Power HT 1.230

Power HT 1.280

Power HT 1.320

200

Max L. pipe inc. 87° bend mm

These lengths are only for single boilers Decrease of the total lengths of the flue pipes: 1piece 87° bend: 5 m 1 piece 45° bend: 2 m 1 piece 15° bend: 1 m

164

Solutions for centralized heating systems installations

Accessories

Dual flue system accessories Power HT 230-320 kW Pictures

Description

Code

Extension pipe Ø 200 L=500 mm

LXO 000971911 .

Extension pipe Ø 200 L=1000 mm

LXO 000971928 .

Extension pipe Ø 200 L=2000 mm

LXO 000971935 .

Bend 87½ Ø 200

LXO 000971942 .

Bend 45½ Ø 200

LXO 000971959 .

Pitched roof tile Ø 200

LXO 000971997 .

SAS flue discharge 200-1B

LXO 000688673 .

SAS flue discharge 200-2B

LXO 000688680 .

Air grid Ø 200

LXO 000971980 .

Bend 87° Ø 200 with inspection

LXO 000971904 .

Up right duct with inspection hole

LXO 000971898 .

SAS vertical chimney terminal Ø 200

LXO 000989527 .

Passing roof Ø 200

LXO 000989497 .

Comburent air filter

LXO 000692656 .

Room air indipendent working (WAS 200)

LXO 000971881 .

Spacer Ø 200

LXO 000971973 . 165

Electronics The POWER HT range of high power floor-standing boilers ( from 230 to 320 kW) is equipped with a boiler electronic circuit which has been specially designed for controlling premixing condensing boilers and which permits start-up, adjustment and monitoring of this type of gas heat generator to achieve optimal performance of the burner in heating and domestic hot water production systems. The most important feature of this new generation of electronic circuits is undoubtedly its ability to integrate different heat generation technologies through the use of small interface circuits and a communication protocol enabling the various parts of the heating system to dialogue with each other. All the control, management and communications software (meaning the whole intelligent part of a heating system) resides in the boiler circuit board, so the only interfaces needed for integration with other types of generator are hardware items such as extensions of the connectors on the motherboard. Installing boilers in cascade is particularly easy, requiring merely connection of the boilers in a communication bus using the bus module (OCI345). The control panel has a large LCD display, by means of which the parameters of the entire heating system can be set, using a menu logic, through the various programming and control areas. All the parameters and controls are visualised by a clearly legible text message. Features

• • • • • • • • •

Double microprocessor: latest generation software for control of the generator, or even of a complete heating system. Management of primary circuit pump modulation by PWM controller Programming of daily heating and domestic hot water production Electronic thermometer Self- diagnosis: signalling and description of possible anomalies Built-in climate regulation (outdoor sensor available as optional) automatic summer/winter changeover with outdoor sensor connected preset for installation in cascade with control software included in the circuit board Preset for installation in mixed systems (low and high temperature)

Temperature caldaie

1 Operating switch 2 Reset button

8 Ok button (acknowledgment) 9 Information button

3 Reset safety temperature limiter

10 Knob

4 Blanking plate

11 Chimney sweep function

5 Control unit

12 ESC button

6 Central heating operation mode

13 DHW operation mode

7 Display 166

Temperature caldaie

Solutions for centralized heating systems installations Programming, setting and digital control Pictures

Model

Description

Code

Outdoor sensor (QAC34)

The outdoor sensor kit QAC34 is a temperature sensor which communicates the outdoor temperature to the boiler so that it can adapt the flow temperature to the effective heating requirements of the room as set by the user.

710487301 .

Bus interface kit (OCI345)

710025602 .

Accessory for managing mixed systems or solar panels (AVS75.390).

By making several inputs/outputs available to the system, the expansion model AVS75 permits management of any mixed zones or of the part of the system relative to solar panels if present. This accessory, connected to a single boiler or to one of the boilers (master) in cascade, is able to directly manage the circuit components up to a maximum of 3 independent relay outputs, 2 temperature sensors inputs, 1 high voltage connector for the thermostat limit and 1 control input (such as TA).

LXO 000680844 .

Climate regulator for mixed zones (RVS46)

Soon available

167

Expansion module The expansion module is an electronic circuit board designed for installation under the top cover of the boiler, in one of the spaces provided, and is used to supplement the functions of the circuit board controlling the boiler. By using this expansion module ( a maximum of three can be installed in the boiler or in a cascade of boilers), mixed zones can be controlled or, generally speaking, inputs and outputs can be provided for any heating system requirements (solar panels, biomass boilers, solenoid valves, additional pumps.....) KEY FOR CONNECTOR HOOK-UP X50 C (EX21-FX23) C (FX23-L) S (QX23-L)

Connector for connection of the SIEMENS electronic circuit to the accessory ACS7.

EX21 FX23 L QX23

Programmable 230V relay output usually used for mixed zone valve.

T (QX22-N)

ACS 75 power supply.

NOL (L-N)

ROOM THERMOSTAT connector.

L QX22

N QX21

AVS 75 1

M H2 M BX22 M BX21

n (BX22-M)

Programmable input.

n (BX21-M)

Programmable input usually used for mixed zone flow sensor. Joint earthing connection for sensors.

ON 1

168

Inputs used, if any, for safety thermostats of mixed zones.

T (QX21-N)

X50

3 X30

ATF = outdoor sensor KP = boiler pump HP = low temperature zone heating pump TLP = heater pump TZP = recirculation pump VFK = plant flow sensor TWF = cylinder probe HVF = low temperature zone flow sensor HM = low temperature zone mixer vale FB = low temperature zone room sensor EM = extension module (installed on boiler)

Solutions for centralized heating systems installations

Single installation scheme with a mixed circuit + DHW cylinder and hydraulic separator

169

Mixing valve

Function Relay outlet QX1 Relay outlet QX2 Relay outlet QX3 Inlet probe BX1 Config. expansion module

Extension module AVS75.390

170

Zone pump

Men첫 5890 5891 5892 5930 6020

Flow sensor of a zone

Room sensor

Setting Boiler pump Q1 Recirculation pump Cylinder pump Q3 Plant deliv. probe B10 Heating circuit 1

Cylinder sensor

Outdoor sensor

Boiler flow sensor

PCB

Pump of the boiler

Cylinder pumps

Wiring plan

ATF = outdoor sensor HK1 = high temperature heating zone HK2 = low temperature heating zone KP = boiler pump HP = low and high temperature zone heating pumps TLP = cylinder pump TWF = cylinder sensor HVF = low temperature zone flow sensor HM = low temperature zone mixer valve FB = low and high temperature zone room sensor EM = extension module (installed on boiler)

Solutions for centralized heating systems installations

Singole installation scheme with a direct circuit, a mixed circuit, hydraulic separator and DHW cylinder

171

172

Pump of a zone

Mixing valve

Function Heating circuit 1 Heating circuit 2 Relay outlet QX1 Relay outlet QX2 Relay outlet QX3 Inlet probe BX1 Config. expansion module

Expansion module AVS75.390

Men첫 5710 5715 5890 5891 5892 5930 6020

Flow sensor of the low temperature zone

Room sensor

Setting ON ON Boiler pump Q1 Heating pump Q2 zone AT Heater pump Q3 Plant deliv. probe B10 Heating circuit 2 Men첫 40

PCB

Function Used as

Cylinder sensor

Outdoor sensor

Flow system sensor

Setting Ambiance unit 2

Pump of the boiler

Cylinder pumps

Boiler pump high temperature zone

If there is an ambiance probe for zone 2 the following parameters must be set.

Wiring plan

ATF = outdoor sensor HK1 = first low temperature heating zone HK2 = second low temperature heating zone TZP = recirculation pump HP = low and high temperature heating pumps TLP = cylinder pump TWF = cylinder sensor HVF = low temperature zone flow sensor HM = low temperature zone mixer valve FB = low and high temperature zone room sensor EM = extension modules AVS75 (installed on boiler)

IMPORTANT NOTE: If no hydraulic separator is installed, the heating pumps (HP) must be connected to the boiler board as per the instructions.

Solutions for centralized heating systems installations

Single installation scheme with a direct circuit, a mixed circuit and DHW cylinder

173

Pump of a zone

Mixing valve

Mixing valve Flow pump low temperature zone

Flow sensor low temperature zone

Expansion module AVS75.390

Room sensor

Men첫 40

Function Used as

PCB

Setting Room unit 2

Cylinder pumps

If there is an ambiance probe for zone 2 the following parameters must be set:

Flow sensor low temperature zone

174 Expansion module AVS75.390

Men첫 Function Setting 5715 Heating circuit 2 ON 5890 Relay outlet QX1 Recirculation pump 5892 Relay outlet QX3 Cylinder pump Q3 6020 Config. expansion module 1 Heating circuit 1 6021 Config. expansion module 2 Heating circuit 2 SET THE ADDRESS OF THE SECOND EXTENSION MODULE WITH THE DIP SWITCHES

Wiring plan

Cylinder sensor

Outdoor sensor

ATF = outdoor sensor HK1 = high temperature heating zone HK2 = first low temperature heating zone HK3 = second low temperature heating zone HP = heating pumps for the various zones TZP = recirculation pump TLP = cylinder pump TWF = cylinder sensor HVF = low temperatures zones flow sensors HM = low temperature zones mixer valves EM = extension module AVS75 FB = room sensors for the various zones

IMPORTANT NOTE: If no hydraulic separator is installed, the heating pumps (HP) must be connected to the boiler board / Extension Module as per the instructions

Solutions for centralized heating systems installations

Single installation scheme with 3 circuit (2 mixed circuit, one direct circuit) and DHW cylinder.

175

Pump of a zone

Mixing valve

Low temperature zone flow pump

Expansion module AVS75.390

Room sensor

Setting ON ON ON Recirculation pump Heating circuit pump HC1 Q2 Heater pump Q3 Heating circuit 2 Heating circuit 3

Mixing valve

Low temperature zone flow pump

Function Heating circuit 1 Heating circuit 2 Heating circuit 3 Relay outlet QX1 Relay outlet QX2 Relay outlet QX3 Config. expansion module 1 Config. expansion module 2

Expansion module AVS75.390

176

Men첫 40 Men첫 40

Low temperature zone flow sensor

Men첫 5710 5715 5720 5890 5891 5892 6020 6021 Function Used as Function Used as

PCB

Setting Room unit 2 Setting Room unit 3

Cylinder pumps

High temperature zone pump

Wiring plan

Cylinder sensor

Outdoor sensor

Solutions for centralized heating systems installations

Dimensions Power HT 1.230 with KB1 accessory (see page. 178)

Power HT 1.280 (1.320) with KB2 accessory (see page. 179) (1.980)*

For Power HT 1.320* model 177

Cascade installation Power HT 1.230 Flow manifold for two boilers

Flow interception valves Return manifold for two boilers

No-return valve

Circulating pump

Return interceptions valves

Brackets for manifolds

Connection kit for boilers in cascade KB1 â&#x20AC;&#x201C; mod. HT 1.230 cod. LXO000692632 . 178

Solutions for centralized heating systems installations

Cascade installation Power HT 1.280 e 1.320 Flow manifold for two boilers

Return manifold for two boilers Flow interception valves

No-return valve

Circulating pump

Return interceptions valves

Brackets for manifolds

Connection kit for boilers in cascade KB2â&#x20AC;&#x201C; mod. HT 1.280-1.320 cod. LXO000692649 . 179

Information for the calculation of the diameter of the flue pipes Power HT

N° of boilers

Max L. of flue pipes

Suggested ø

Speed of flues discharge

200

250

300

250

300

250

300

250

300

350

1.230

1.280

1.320

180

Solutions for centralized heating systems installations Connection to interface bus for boilers in cascade (OCI345) The interface bus OCI345 (Bus Module) is an electronic device enabling communication with and therefore the management of, boilers in cascade. Thus used, the communication bus also permits remote monitoring and management of the cascade. The interface bus slot is inside the control panel of each boiler in the cascade. Slide the OCI345 Bus Module along the plastic guides over the circuit casing, into the dedicated space (see diagram).

Â Use the cable provided to connect the interface to the connector of the electronic circuit X11.

BUS module

PCBs

181

ATF = outdoor sensor HK1 = first low temperature heating zone HK2 = second low temperature heating zone HK3 = third low temperature heating zone HP = heating pumps for the various zones TZP = recirculation pump TLP = cylinder pump KP = boiler pump TWF = cylinder sensor HVF = low temperatures zones delivery sensors RFK = cascade boilers return sensor HM = Low temperature zones mixer valves EM = extension module AVS75 FB = room sensors for the various zones

Cascade installation scheme with 2 boilers, 3 mixed circuits and DHW production

182

183 Expansion module AVS75.390

Expansion module AVS75.390

Boiler on the right

PCB

LPB to the boiler on the left

Wiring plan (right) Solutions for centralized heating systems installations

184

Room unit 2

Setting

Parametri da impostare: Men첫 Function Configuration: 5710 Heating circuit 1 5891 Relay outlet QX2 5930 Input probe BX1 5931 Input probe BX2 LPB: 6600 device address

Parameters to set: Men첫 Function Control unit 40 Use

Off Boiler pump Q1 Flow sensor B10 Cascade return sensor B70

Setting

Room unit 3

Setting

If you use a second ambiance unit for CR3 you must set the following parameters on the CR3 ambiance unit:

Parameters to set: Men첫 Function Control unit 40 Use

If you use a second ambiance unit for CR2 you must set the following parameters on the CR3 ambiance unit:

Parameters to set: Men첫 Function Setting Confugurazione: 5890 Relay outlet QX1 Actuator ACS Q3 5891 Relay outlet QX2 Boiler pump Q1 5892 Relay outlet QX3 Recirculation pump 5890 Ext. module function 1 Heating circuit 1 5891 Ext. module function 2 Heating circuit 2 5892 Ext. module function 3 Heating circuit 3 LPB: 5892 Function extension module 3 Heating circuit 3 Direct the second expansion module to address 2 (switch) Direct the third expansion module to address 3 (switch)

Boiler on the left

PCB

LPB to the boiler on the right

Wiring plan (left)

Solutions for centralized heating systems installations

Hydraulic separator For the theoretical explanation of the hydraulic separator see pages from 60 to 63

450

330

1069

365

1279

263

230

290 95

143

290

484

330

398

1069

230

Hydraulic separator 18 m³/h flanged joints DN 65 PN 16.

Hydraulic separator 28 m³/h flanged joints DN 80 PN 16.

Weight Kg 39 - Cod. LSD 790000320 .

Weight Kg 51 - Cod. LSD 790000330 .

450

1279

264,5

290

484

450

365

1279

264,5

Hydraulic separator 56 m³/h flanged joints DN 100 PN 16.

Weight Kg 55 - Cod. LSD 790000340 .

Condensate neutralizer kit Neutralizer filter to process the water deriving from the condensation of BAXI condensing boilers in cascade installations Cod. KHG 714125710 . To install the neutralizer kit it is necessary to install Power HT at least at 12 cm from the floor. Recharge for the neutralizer kit (output up to 350 kW) available Cod. KHG 714135410 . Maximum condensate water flow

l/h

Max potentiality of the boiler

kcal/h

da 201.000 a 300.000

Max potentiality of the boiler

234-349

Maximum working pressure

bar

Maximum temperature of the water content

°C

Min/Max room temperature

°C

2 Corresponding to the maximum temperatures of the condensate waters 5-40

Quantity of the first charge of product

Next recharges

4,5

Dimensions ( hxwxd)

260x330x225 185

263

Other accessories Flue accessories for cascade installation Power HT 230-320 kW Picture

Description

Manifold for 2 boilers in cascade 250 mm

Code

LXO 000691444 .

Other accessories Hydraulic accessories for cascade installation Power HT 230-320 kW Picture

Description

Code

Connection kit boilers in cascade KB1 – mod. HT 1.230

LXO000692632 .

Connection kit boilers in cascade KB2– mod. HT 1.280-1.320

LXO000692649 .

Other accessories Termoregulation accessories for cascade installation Power HT 230-320 kW Picture

Description

Bus module for connection in cascade

186

Code

LXO 000669238 .

Solutions for centralized heating systems installations

Luna SAT Introduction Heating only models Technical chart Dimensions Thermal requirements chart Diagrams and hydraulic schemes Hydraulic connections Heating and DHW models Technical chart Dimensions Thermal requirements chart and diagrams Hydraulic schemes Hydraulic connections Accessories and equipment Supplying and mounting system

P. 188 190 191 192 194 195 197 198 199 200 201 202 203 204 207

187

Luna SAT BAXI, specialist in boilers production, presents always new heating solutions to guarantee the maximum domestic comfort. Baxi has developed the integrated system for heat recording and distribution, applying the BAXI experience on boilers in the new built-in heat-boxes LUNA SAT. Compact dimensions, energy saving, immediate information on consumption and fair costs sharing, are all guaranteed by LUNA SAT, ensuring always the desired comfort: the DHW and room temperatures can be easily regulated according to any requirements.

Recording with wireless data transmission and M-BUS LUNA SAT are provided with heat consumption meters for the wireless consumption data transmission, without using electric cables. Thanks to a digital display, the direct consumption reading is anyhow possible. To save on reading timing and respecting users privacy, consumption data can be communicated wireless by a signal sent from the heat consumption meters to the network nodes that receive and store data. Consumption data transmission made by heat meters is repeated 6 times a day for some milliseconds. This automatic reading system allows the control of the building consumptions from one single position, avoiding possible reading mistakes, quickly and with the maximum easiness.

Reading and transmission of consumption data can be done both locally and remote using the accessories available as option. network node

network node

remote reader device

Direct transmission from network node with gateway network nodes. network node Data transmitted by PC the network nodes can be directly network node with gateway downloaded from the remote remote readerPC device (optional) reader PC connected to adevice laptop

network node with gateway

REMOTE OFFICE

GSM network node

Network nodes with gateway remote transmission. Data are read through a PC serial cable; the cable is connected to the main transmission network node positioned in the heating station

REMOTE OFFICE

Network nodes with gateway (via gsm) remote transmission. Data are read via the GSM telephone network through a PC connected to the main network node through a GSM REMOTE OFFICE modem

PC GSM network node

GSM network node GSM modem

BLOCK OF FLATS TO RECORD

188 BLOCK OF FLATS TO RECORD

GSM modem BLOCK OF FLATS TO RECORD

PC GSM modem

Solutions for centralized heating systems installations

scheme just as way of an example

M-BUS Transmission

data centralizer

signal converter

flow meter

LUNA SAT

heat meter

M-BUS

heat meter

M-BUS

heat meter

M-BUS

Heat meter for the centralized tank

flow meter

LUNA SAT

flow meter

LUNA SAT 189

Heating only models

Mod. RC

Mod. R/1

Mod. RP/1

Mod. R2Z

Mod. RH Mod. RPH

Mod. RPEH

Mod. RH1

Mod. RPB

Mod. RHG1

Mod. RPE

Mod. R2H

These heat-boxes are available both wireless and M-BUS versions except for R/1, RH, RPB (only wireless version). RPE, RPEH, RH1 and RHG1 are available with built-in flow-meter.

190

Solutions for centralized heating systems installations

Technical features • Compact dimensions • Galvanized steel case • R/1, RH, RPE,RH1 and RHG1 models (wireless and M-BUS) are available also with built-in flow-meter. RH1 model can be supplied also with pressure reductor on the flow-meter. Hydraulic system • Vertical hydraulic connections facing down • Hydraulic connections facing down. Exits from above (RH, RPH, RH1. RHG1, R2H mod.), rotation possibility (RH mod.) • Brass components with automatic by-pass and integrated hydraulic connections (RC model excluded) • Circuit balancing valve (R/1, RH. RH1, RHG1, R2H mod.) • Hydraulic connections on a hard painted and non-scratch frame (RC model excluded) • Low consumption circulating pump UPS 25/70 to autonomously control the water fl ow in the installation (RP/1, R2Z, RPE, RPH mod.) • Inspectionable filter on the heating circuit • Hydraulic components integrated in a bross group (intel filter, balancing valve, well, sensor and switch on-off valve) RC model. Thermoregulation, counting and control • Electronic heat consumption meter with wireless data reading (network node), M-BUS or locally • Electronic components included in a case with grade of protection IP44 • Complete diagnostics with leds (R2Z, RPE mod.) • Anti-frost device (R2Z, RPE mod.) • System to prevent pump and valves sticking (R2Z, RPE mod.) • Selection of 3 different climatic curves: high temperature (25/80°C), average temperature (40/60°C), low temperature (25/40°C) (R2Z, RPE mod.) • Outdoor sensor connection option (RS2Z, RPE mod.) • Possibility to control 2 different heating zones (R2Z mod.) General data for dimensioning • DHW temperature range of the centralized system: 60-75°C • DHW maximum pressure of the centralized system: 4 bar • Suggested maximum speed of the heat transfer fluid: 1 + 1,5 m/s

R/1

RP/1

R2Z

RPH

RPB

RPE

RPEH

RH1

Models with pump

•

RHG1 R2H** -

Models with 2nd zone

•

Heating temperature regulation with high climatic curve

°C

25/80

Heating circuit maximum pressure

bar

Water contents

0,5

1,5

3,5

1,5

Power supply voltage

230

Power supply frequency

Power consumption

110

210

110

Width of the case

450

600

800

650

600*

600

400*

500

800

Height of the case

450

650

750

650

716*

650

850

600*

850

750

Depth of the case

110

150

150*

150

200*

150

Net weight

3,2

13,50

Maximum temperature of the warm fluid (inlet)

°C

Feed flow (inlet)

l/h

700÷ 1000 l/h

Flow-losses

kPa

20Kpa a 700 l/h

Nominal prevalence of the warm fluid (outlet)

kPa

See load loss curve on page 195

(*) The case can not be used. Measures are referred to RPH and RH1 models without casing including interception taps (**) For heating and cooling

191

Dimensions Luna SAT RC 65

318

450

68 frontal view

left side view

Luna SAT R/1 - RP1 connection tongues

case width 150

38,5

connection kit 130

case height 650

screws seats

L 600

64 left side view

frontal view

Luna SAT RPE - RPB connection tongues

case width 150

38,5

connection kit 30

case height 650

screws seats

The uprights of the centralized network can be intercepted also by the lateral sides of the case

L 600

64 left side view

frontal view

Luna SAT R2Z connection tongues

case width 150

L 800

38,5

connection kit 30

case height 750

screws seats

50 64

frontal view

192

left side view

measures in mm

Solutions for centralized heating systems installations Luna SAT RH

connection kit 30

case height 650

case width 150

frontal view

The holes for hydraulic connections are on the side of the casing

left side view

L 400 min.

Luna SAT R2H

76,5

case width 150

292

case heigh 750

connection kit 30

120

screws seats

LUNA SAT RH1 is provided without casing LUNA SAT RH1 complete template KSV 714122310 .

238

left side view

120

frontal view

235

H=846 min.

connection tongues

38 70 16,5

352

Luna SAT RPEH Luna SAT RH G1 case width 150

frontal view

screws seats case height

connection kit

connection kit 144 39,5

connection kit

420

case heigh 850

62,5

155,5

209,5

335

872

screws seats

connection kit 144

327,5

case width

left side view

193

Thermal requirements heated surface Surface to heat (m²)

Surface to heat (*) with F1=20 W/m³ (kW)

Surface to heat (*) with F2 = 30 W/m³ (kW)

Surface to heat (*) with F3 = 45 W/m³ (kW)

3,6

5,4

8,1

4,2

6,3

9,5

4,8

7,2

10,8

5,4

8,1

12,2

100

6,0

13,5

110

6,6

9,9

14,9

120

7,2

10,8

16,2

130

7,8

11,7

17,6

140

8,4

12,6

18,9

150

13,5

20,3

(*) Volumetric heat load "F": 20-30-45 W/m³ with ∆t = 25 K. Height of the volume to heat = 3 m. ∆t = Difference between outdoor and indoor temperature (T indoor = 20 °C, T outdoor = -5 °C). F1 = 20 W/m³ buildings with a perfect insulation F2 = 30 W/m³ buildings with a good insulation F3 = 45 W/m³ buildings with a bad insulation

cooled surface Surface to cool (m²)

Cooling requirements (*) with F1=15 W/m³ (kW)

Cooling requirements (*) with F2 = 25 W/m³ (kW)

Cooling requirements (*) with F3 = 40 W/m³ (kW)

2,7

4,5

6,3

3,2

5,3

5,7

3,6

6,0

8,4

4,1

6,8

9,5

100

4,5

7,5

10,5

110

5,0

8,3

11,6

120

5,4

9,0

12,6

(*) Volumetric heat load "F": 15-25-40 W/m³ con ∆t = 8K (airconvectors). Height of the volume to heat = 3 m. ∆t = Difference between outdoor and indoor temperature (T indoor = 26 °C, T outdoor = 34 °C). F1 = 15 W/m³ buildings with a perfect insulation F2 = 25 W/m³ buildings with a good insulation F3 = 40 W/m³ buildings with a bad insulation 194

Solutions for centralized heating systems installations

Diagrams The here below graphics are useful to define the hydraulic behaviour of the heat-boxes. In particular they refer to the prevalence of the pump in the heating circuit ( heat-boxes with pumps) and to the loss of charge of the heating circuit ( heat-boxes with balancing valve).

HEATING CIRCUIT LOSS OF CHARGE (R/1-RH) LOSS OF CHARGE (KPa)

DISCHARGE HEAD (KPa)

HEATING CIRCUIT PUMP DISCHARGE HEAD

WATER FLOW (l/h)

Hydraulic schemes Luna SAT RC

Luna SAT R/1

Luna SAT RP/1

Luna SAT R2Z

195

Luna SAT RPH

Luna SAT RPB

Luna SAT RH

Luna SAT RPEH A

4 1

Luna SAT RPE

Luna SAT RH1 4 3

1 2

Luna SAT RH G1

Luna SAT R2H A

1 2

Legend 1 2 3 4 5 6 7 8 A B 196

ON-OFF valve Heat consumption meter Heating pump Low temperature mixing valve High temperature ON-OFF valve Low temperature circuit pump High temperature circuit pump NTC heating sensor heating system flow heating system return

C D E F G H I L M N

heating inlet from centralized system heating return to centralized system high temperature heating system flow high temperature heating system return low temperature heating system flow low temperature heating system return cooling inlet from centralized system cooling return to centralized system cooling apartment flow cooling apartment return

Solutions for centralized heating systems installations

Hydraulic connections Luna SAT RC

Luna SAT R/1 - RP/1 - RPE - RPB USC 1

L of the case 600

USC 2

USC 3

110

450

110

ESC 1

ESC 2

ESC 3

Luna SAT R2H

Luna SAT RH G1 L of the case 800

162,5

140

57,5

150

135

USC2

108

ESC1

USC1

ESC2 L of the case 500

70 73,5

ESC2

MR1

RR1

RR2 USC1

MR2

108

UP1

128

UP2

77 73

IP1

IP2

50 53,5

UP ESC1

USC2

162,5

140

57,5

Luna SAT RPEH

Luna SAT R2Z L of the case 800

L of the case

Luna SAT RH L of the case 650

USC1 USC2

View from above Legend

HEATING SYSTEM CONNECTIONS – BIZONE MODELS MRAT: high temperature zone G 3/4’’ M apartment CENTRALIZED SYSTEM CONNECTIONS flow (R2Z model) IP: primary inlet from centralized system G 3/4’’ M MRBT: low temperature zone G 3/4’’ M apartment UP: primary outlet to centralized system G 3/4’’ M IP1: heating inlet from the centralized system G 3/4’’ flow (R2Z model) RRAT: high temperature zone G 3/4’’ M apartment M (R2H) UP1: heating outlet from the centralized system G 3/4’’ return (R2Z model) RRBT: low temperature zone G 3/4’’ M apartment M (R2H) IP2: cooling inlet from the centralized system G 3/4’’ return (R2Z model) M (R2H) UP2: cooling outlet from the centralized system G 3/4’’ HEATING-COOLING APARTMENT CONNECTIONS MR1: heating apartment flow G 3/4 “ M M (R2H) RR1: heating apartment return G 3/4 “ M MR2: cooling apartment flow G 3/4 “ M APARTMENT SIDE HEATING CONNECTIONS – RR2: cooling apartment return G 3/4 “ M MONOZONE MODELS MR: apartment heating flow G 3/4’’ M DHW CONSUMPTION METER CONNECTIONS RR: apartment heating return G 3/4’’ M ES: water inlet to the first heat meter G 3/4 “M

(R/1, RP/1, RPE, RPB, R2Z mod.) US: water outlet to the first heat meter G 3/4 “ M (R/1, RP/1, RPE, RPB, R2Z mod.) ESC1: water inlet to first heat meter G 3/4 “ M USC1: water outlet from first heat meter G 3/4 “ M ESC2: water inlet to second heat meter G 3/4 “ M USC2: water outlet from second heat meter G 3/4 “ M ESC3: water inlet to third heat meter G 3/4 “ M (only for RC mod.) USC3: water outlet to third heat meter G 3/4 “ M (only for RC mod.) AE: hole for cables In the heating only models the metering of cold/hot water can be done indifferently on the first or on the second meter. Note: DHW inlet/outlet G 1”M or G3/4”M for RHG1 and G3/4”M for all the other models 197

Heating and DHW production models

Mod. RS

Mod. RSP

Mod. RA

Mod. RS2Z

Mod. RA2Z

Mod. R60WH

Temperature centralized system water circuit (°C)

Heat exchange output (kW)

Domestic water input with ∆Ts = 35 kW (l/min)

14,3

12,7

11,4

10,6

∆TS = temperature variance between hot water outlet and domestic cold water inlet Wireless models are available. RS, RSP, RST and R60WH are available also in M-BUS version

198

Mod. RST

Solutions for centralized heating systems installations

Technical features • Compact dimensions • Galvanized steel case • Wall-hung installation for R60WH

(25/80°C), average temperature (40/60°C), low temperature (25/40°C) (RSP, RS2Z, RA, RA2Z , R60WHmod.) • Outdoor sensor connection option (RSP, RS2Z, RA, RA2Z, R60WH mod.) • Possibility to manage 2 different heating zones (RS2Z, RA2Z mod.) • DHW priority • DHW temperature control by electronic modulation • Anti-legionella system ( RA, RA2Z, R60WH)

Hydraulic system • 35 kW stainless steel plates exchanger that allows maximum efficiency also with water temperature at 60°C in the primary circuit (RS, RSP, RS2Z mod.) • 40 kW stainless steel plates exchanger that allows maximum efficiency also with water temperature at 60°C in the primary circuit (RST mod.) • Hydraulic connections facing down • Brass components with automatic by-pass and integrated hydraulic connections • Circuit balancing valve (RS mod.) • Thermostatic valve on the DHW outlet (RST mod.) • Hydraulic connections on a hard painted and non-scratch frame • Low consumption circulating pump UPS 25/70 to autonomously control the water flow in the installation (RSP, RS2Z, RA, R60WH, RA2Z mod.) • DHW filter • Built-in 60lt stainless steel cylinder ( R60WH mod.)

General data for dimensioning • DHW temperature range of the centralized system: 60-75°C • DHW maximum pressure of the centralized system: 4 bar • suggested maximum speed of the heat transfer fluid: 1 + 1,5 m/s

Thermoregulation system, counting and control • Electronic heat consumption meter with wireless data reading (network node), M-BUS on RS-MB and RSP-MB or locally • Electronic components included in a case with grade of protection IP44 • Complete diagnostics with leds • Anti-frost device • System to prevent pump sticking (RSP, RS2Z , RA, RA2Z, R60WH mod.) • System to prevent valves sticking • Inspectionable filter on the heating circuit • Selection of 3 different climatic curves: high temperature RS

RSP

RS2Z

R60WH

RA2Z

RST

•

Models with pump

•

Models with 2nd zone

•

DHW production

Heating temperature regulation with high climatic curve

°C

25/80

DHW regulation

°C

30/60

30/65

30/60

DHW production with ∆T=35°C and inlet water temperature 75°C

I/m

14,3

12,3

14,3

Heating circuit maximum pressure

bar

DHW circuit maximum pressure

bar

DHW circuit minimum pressure

0,2

bar

0,2

Water contents

2,5

Power supply voltage

230

Power supply frequency

Power consumption

110

210

150

110

210

600

800

600

910

800

600

Width of the case Height of the case

650

750

650

450

750

600

Depth of the case

150

473

150

Net weight

Maximum temperature of the warm fluid (inlet)

°C

Feed flow

l/h

1000÷1500

Flow-losses

kPa

20kPa a 700

Nominal prevalence of the warm fluid (outlet)

kPa

See load loss curve on page 201

199

450

450 42

Dimensions

left side view

frontal view

Luna SAT RS - RSP - RA

68 frontal view

left side view connection tongues

case width 150

connection tongues

case width 150

screws seats

38,5

L 600

connection kit 130 connection kit 130

case heightcase 650 height 650

screws seats

The uprights of the centralized network can be intercepted also by the lateral sides of the case

50 64 left side view 50

frontal view L 600

Luna SAT RS2Z - RA2Z

left side view

frontal view connection tongues

case width 150

connection tongues

case width 150

screws seats

38,5

L 600

connection kit 30 connection kit 30

case height 650 case height 650

screws seats

50 64 left side view 50

frontal view

L 600

64 left side view

frontal view connection tongues

screws seats

case width 150

Luna SAT R60WH

Luna SAT RST

150

case height 750 case height 750

SCREWS SEATS

frontal view

473 frontal view left side view

600

50 64 left side view

50 64 left side view 22

450

554

38,5

L 800

38,5

910

connection kit 30 connection kit 30

L 800 frontal view

200

case width 150

connection tongues

screws seats

SCREWS SEATS

Solutions for centralized heating systems installations

Thermal requirements heated surface

Surface to heat (m²)

Surface to heat (*) with F1=20 W/m³ (kW)

Surface to heat (*) with F2 = 30 W/m³ (kW)

Surface to heat (*) with F3 = 45 W/m³ (kW)

3,6

5,4

8,1

4,2

6,3

9,5

4,8

7,2

10,8

5,4

8,1

12,2

100

6,0

13,5

110

6,6

9,9

14,9

120

7,2

10,8

16,2

130

7,8

11,7

17,6

140

8,4

12,6

18,9

150

13,5

20,3

(*) Volumetric heat load "F": 20-30-45 W/m³ with ∆t = 25 K. Height of the volume to heat = 3 m. ∆t = difference between outdoor and indoor temperature (T indoor = 20 °C, T outdoor = -5 °C). F1 = 20 W/m³ buildings with a perfect insulation F2 = 30 W/m³ buildings with a good insulation F3 = 45 W/m³ buildings with a bad insulation

Diagrams The here below graphic are useful to define the hydraulic behaviour of the heat-boxes. In particular they refer to the prevalence of the pump in the heating circuit ( heat-boxes with pumps) and to the loss of charge of the heating circuit ( heat-boxes with balancing valve).

HEATING CIRCUIT LOSS OF CHARGE (RS MODEL)

WATER FLOW (l/h)

LOSS OF CHARGE (KPa)

DISCHARGE HEAD (KPa)

HEATING CIRCUIT PUMP DISCHARGE HEAD

WATER FLOW (l/h) 201

Hydraulic schemes Luna SAT RS

Luna SAT RSP

Luna SAT RS2Z

Luna SAT RA

Luna SAT R60WH

Luna SAT RA2Z

1 9

16 15 13

Luna SAT RST C

Legend

1 2 3 4 5 6 7 8 9 10 11 12 13

3 4 13

202

M F

ON-OFF valve Modulating valve DHW/heat. 3 way valve Pressure switch Heat consumption meter NTC heating sensor NTC DHW sensor Mixing valve DHW-heating pump High temperature heating pump Low temperature heating pump High temperature ON-OFF valve Thermostatic valve

A B C D E F G H I L M

heating system flow heating system return heating inlet from centralized system heating return to centralized system DHW outlet cold water inlet high temperature heating system flow high temperature heating system return low temperature heating system flow low temperature heating system return cold water outlet

Solutions for centralized heating systems installations

Hydraulic connections Luna SAT RS - RSP - RA

Luna SAT R60WH

50 MR

37,5 75 70

65 RR

L of the case 600

65 IP

60 ES

Luna RST

L of the case 600

L of the case 800

UCS

UFS

EFS

105

138

40,5 109,5

Luna SAT RS2Z - RA2Z

View from above

Legend CENTRALIZED SYSTEM CONNECTIONS IP: primary inlet from centralized system G 3/4’’ M UP: primary outlet to centralized system G 3/4’’ M APARTMENT HEATING CONNECTIONS – MONOZONE MODELS MR: heating G 3/4’’ M apartment flow RR: heating G 3/4’’ M apartment return APARTMENT HEATING CONNECTIONS – BIZONE MODELS MRAT: high temperature zone G 3/4’’ M apartment flow (RS2Z model) MRBT: low temperature zone G 3/4’’ M apartment flow (RS2Z model) RRAT: high temperature zone G 3/4’’ M apartment return (RS2Z model) RRBT: low temperature zone G 3/4’’ M apartment return (RS2Z model)

DHW APARTMENT CONNECTIONS ES (*): Cold water inlet G 1/2 “ M ( RS, RSP, RS2Z, R60WH mod.) US: DHW outlet G 1/2 “ M (RS, RSP, RS2Z, R60WH mod.) UCS: DHW thermostatic outlet (RST mod.) UFS: Cold water outlet EFS: Cold water inlet DHW CONSUMPTION METER CONNECTIONS ESC1 (*): inlet to cold water heat meter G 3/4 “ M VS: safety valve discharge AE: hole for cables Note: (*) in case of volumetric meter installation (available as optional) the DHW inlet has to be transferred in the hydraulic connection ESC1 (or ESC2) Note: DHW inlet/outlet G 1/2” M for RS, RSP, RS2Z,G3/4”M for all the other models. 203

Accessories available as option Thermoregulation Picture

Model

Description

Code

Outdoor sensor (QAC34)

The inlet temperature of the installation is set according to the outdoor temperature. If the outdoor sensor is linked with a remote control, the inlet temperature considers the outdoor average temperature (last 24 hours) and the adjustment to the climatic curves is automatic

KHG 714072811 .

Room thermostat (RT)

Thermostat for the regulation of the room temperature

KHG 714062810 .

Remote control and room sensor

(mod. R2Z, RS, RSP, RS2Z, RA, RA2Z, RPE, RPEH - wireless e M-BUS) set of the room and DHW temperature, weekly timer on 6 levels of daily temperature, possibility to manage an additional thermostat or phone activator, anomalies notice, holiday setting function

KSV 714109511 .

Digital chronostat

(mod. R/1, RP1) Daily or weekly programming with 4 time cycles per day, 2 levels room temperature regulation, summer/ winter functioning, off position with adjustable antifreeze function, room temperature or current time readout, vacation program

KHG 714086710 .

Wireless data transmission Picture

Model

Network node

Network node with gateway Connecting cable PC-network node for network note with gateway

Description Receipt of the data by heat consumption meters present on the floor and wireless transmission to the next network node.

Wireless reading of the consumption and data transmission through a serial cable to a local managing system.

KSV 714102711 .

KSV 714103011 . KSV 714116110 .

Network node with gateway for trasmission via GSM

Wireless reading of the consumption and data transmission via GSM to a remote managing system

KSV 714102811 .

Remote reader device

Device for data receipt at a short distance

KSV 714102911 .

Software ACS 26 Connecting cable PC-network node for network note with gateway 204

Code

KSV 714108611 . It allows the reading of the recording data of the whole system transmitted by network nodes with gateway (via GSM)

KSV 714116110 .

Solutions for centralized heating systems installations

Accessories available as option Control* Picture

Model

First flow meter DHW and DCW meter with hydraulic accessories

*battery life: 7 years

Second flow meter

Flow meter

First or second flow meter

Flow meter for LUNA SAT RHG1

Description

Code

mod. R/1-RP/1-R2Z - RPE - RPB

KSV 714102511 .

mod. R/1-MB, RP/1-MB, R2Z-MB - RPE-MB, RPB - MB

KSV 714116410 .

mod. RP/1

KSV 714106312 .

mod. RP/1-MB

KSV 714118210 .

mod. R/1-R2Z - RPE - RPB

KSV 714110111 .

mod. R/1-MB, R2Z-MB - RPE-MB, RPB - MB

KSV 714118310 .

mod. RS-RSP-RS2Z

KSV 714102611 .

mod. RS-MB, RSP-MB

KSV 714116510 .

mod. RA-RA2Z

KSV 714110011 .

mod. RH, RH1, R2H

KSV 714114511 .

mod. RH-MB, RH1-MB, R2H-MB

KSV 714116611 .

mod. RPH

KSV 714114611 .

mod. RPH-MB

KSV 714116710 .

First or second flow meter RHG1 1’’

KSV 714124910 .

First or second flow meter RHG1-MB 1’’

KSV 714125010 .

First or second flow meter RHG1 3/4’’

KSV 714125111 .

First or second flow meter RHG1-MB 3/4’’

KSV 714125210 .

Luna Sat RC

KSV 714131310 .

Luna Sat RC-MB

KSV 714134310 .

Flow meter

M- BUS data transmission Description

Code

M-BUS central unit made of 250 loads

KSV 714136910 .

M-BUS central unit made of 120 loads

KSV 714137010 .

M-BUS central unit made of 60 loads

KSV 714137110 .

M-BUS central unit made of 20 loads

KSV 714137210 .

Impulse adaptor AEW 310.2 M-BUS

KSV 714116210 .

Connection cable heat meter M-BUS

KSV 714116310 . 205

Accessories available as option other accessories Picture

Description

Code

Heat meter UH50 G1 ¼’’

KSV 714117810 .

Heat meter UH50 G2’’

KSV 714117910 .

Wireless impulse adaptor AEW36.2

KSV 714117710 .

Wireless interface UH50 for ultrasonic heat-meter

KSV 714121710 .

M-BUS interface UH50 for ultrasonic heat-meter

KSV 714121810 .

Well for NTC sensor ( ½” E ¾”) for UH50 G1 ¼”

KSV 714127310 .

Well for NTC sensor for UHG50 G2

KSV 714127410 .

Complete template for Luna Sat RH1

KSV 714122310 .

By-pass for Luna Sat RC

KSV 714136310 .

Heating hydraulic proof for Luna Sat RC

KSV 714136410 .

Sanitary hydraulic proof for Luna Sat RC

KSV 714136510 .

This accessory is necessary to count the energy used to charge the centralized tank.

Sanitary expansion vessel for Luna Sat R60WH

soon available

Equipment available as option Picture

206

Description

Code

Hydraulic equipment for Luna Sat heating only models (R/1, RP/1, RH, RPH, RPB, RPE, R2H) ( x2), RPEH. The kit is made of: - 4 taps G ¾” - 4 telescopic pipes D. 18

KSV 714120911 .

Hydraulic equipment for Luna Sat heating only model RS2Z. The kit is made of: - 6 taps G ¾” - 6 telescopic pipes D. 18 - 1 tap G ½” - 2 telescopic pipes D. 14

KSV 714121210 .

Hydraulic equipment for Luna Sat heating only model RS, RSP. The kit is made of: - 4 taps G ¾” - 4 telescopic pipes D. 18 - 1 tap G ½” - 2 telescopic pipes D. 14

KSV 714121011 .

Hydraulic equipment for 2 flow meters (2 taps ¾”) for Luna Sat R/1, RP/1, RPB, RPE models. The kit is made of: - 2 taps G ¾” - 2 telescopic pipes D. 14

KSV 714121310 .

Hydraulic equipment for Luna Sat models R2Z, RA. The kit is made of: - 6 taps G ¾” - telescopic pipes D. 18

KSV 714121110 .

Hydraulic equipment for 2 flow meters ( 2 taps ¾”) for Luna Sat RH, RPH, R2H. RPEH. The kit is made of: - 2 taps G ¾” - 2 telescopic pipes D. 14

KSV 714121410 .

Solutions for centralized heating systems installations

Supplying and mounting system Luna Sat are supplied with metal case and separated device; the device is supplied already complete and assembled. The case is made of galvanized steel; frame and door are coated by a paint made with special anti-scratch powders. Hook Luna Sat on the case template and proceed with the hydraulic connections. frame

case door

Mounting accessories Single zone case 2 zones case Case for RH 650x650 mm Case for R2H Case for RHG1 Case for RPEH Case for RC Case for RST

KSV 714101211 . KSV 714101311 . KSV 714117011 . KSV 714120610 . KSV 714124010 . KSV 714124310 . KSV 714131010 . soon available

Graphical description of the mounting of RC (or RC-MB) on the bracket positioned on the case .

Luna SATB60 cylinder (to be connected to Luna SAT RA, RA2Z)

Cilinder capacity

Heat exchange output

DHW circuit maximum pressure

bar

Time to have ∆T=50°C rise (primary water temperature 75°C)

min

DHW production (ΔT = 35 °C)

l/min

12,3

Loss of charge with coil at 1200 l/h

hPa

124

Weight ES US ISB

DHW inlet G1/2 DHW outlet G1/2 Coil inlet G3/4

USB Coil outlet G3/4 VS Safety valve discharge

In case of installation of a cylinder not produced by Baxi, it is necessary also to install a flow sensor to be connected to the LUNA SAT RA-RA2Z

207

208

Solutions for centralized heating systems installations

Close examination: water in heating system for housing applications Water in heating system for housing applications Water characteristic in the heating systems Tipycal problems of an heating system Precautions to be taken in modern heating systems

P. 210 211 211 212

209

Water in heating system for housing applications In order to convey and distribute heating to each independent use it is necessary to use a carrier fluid: this can be, forced-air, steam, Freon or most typically simple water. The following information refers to typical hydronic heating systems for housing application working with water up to 100째Celsius. In these systems it is often underestimate the possible malfunctioning and/or damages that can be caused by water not appropriately treated. The aim of this information (that takes cue from Italian norm UNI-CTI 8065) is to fix some limits of chemical and chemical/physical parameters of the water circulating in thermal systems in order to assure efficiency and safety, to guarantee long term reliability and regularity of the functioning of the whole system and its components, and to achieve energy savings. Main checking to be carried out on water are: Aspect: it depends on the presence on water of sediment, suspension, or colloidal, other than of any substances diluted in it that gives immediately evident characteristics like foam, colour or turbidity. Temperature: it is a very important parameter as higher temperature speed up processes like the scale formation, corrosion, microbiologic growth etc. So it is better to know it or specify it during the design phase of the project. pH: it is a measure of the acidity or basicity of a solution. Pure water is said to be neutral, with a pH close to 7.0 at 25 째C (77 째F). Solutions with a pH less than 7 are said to be acidic and solutions with a pH from 7 to 14 are basic or alkaline. Also pH is a very important parameter in the development of scale formation, corrosion, microbiologic growth. TDS: Total Dissolved Solids is a measure of the combined content of all inorganic and organic substances contained in a liquid, and in particular the content of salts in the water. Higher levels of salt in the water also favour the development of scale formation, corrosion or sediments. It need to be taken into consideration in order to avoid design mistakes like lack of drain or water treatment. Water Hardness: it represents the sum of all calcium and magnesium ions in it. It is expressed in mg/kg of CaCo3 or in Frech Degrees (1째 fr = 10 mg/kg CaCo3). Hard water causes incrustation and scale in systems that do not have proper water treatment. Alkalinity: it is a measure of the ability of a solution to neutralize acids, and correspond to the sum of carbonates, hydroxides, phosphates, silicates, nitrates. High concentration of these cause the pH to be higher with the consequences already stated, and are generally cause of lack of adequate drain. Iron in the system: Iron in the system can cause sediments and/or secondary corrosion effects. Presence of iron caused by corrosion indicates improper electrical conductivity in the system or improper functioning of the water treatment. Copper in the system: Copper in a system can cause local dangerous corrosions. As this element is hardly present in the water, its presence is uniquely due to corrosive processes in the circuit. Chlorates and sulphates can cause corrosion in contact with some specific materials (i.e. chlorates with some stainless steel or sulphates with copper). Microbiological formation: these can be grown mouldy, algae, mushrooms in the circuits. These can directly or indirectly cause decomposition products that can generate corrosion, and smells.

210

Solutions for centralized heating systems installations Water characteristic in the heating systems Here below we list the limit values of the filling water of the system (first filling and further topping up) and the ones of the circulating water of an hydronic heating system: Parameters

Unit of measure

Filling water

Circulating water

pH* Value

7-8

Water hardness (CaCO3)

°Fr

<15

Iron (Fe)

mg/kg

<0,5

Copper (Cu)

mg/kg

<0,1

Appearance

clear

Possibly clear

*The maximum value of 8 is only valid when aluminium or light alloy radiators are used

During the designing of the systems it is mandatory to install all the necessary water treatment devices and to use the appropriate chemicals in order to obtain the desired characteristics of the water. Task of the manager is keeping the water characteristics within the limits, by carrying out the necessary controls and consequent corrective actions. It is necessary to provide a chemical treatment for every installation. This treatment is carried out using the correct quantity of suitable chemical reactants aimed to complete, or if necessary to substitute, the filling water physical treatment previously done. For systems with more than 350 kW (300.000 kcal/h) it is necessary to install a safety filter (the use of this kind of filter is anyway always advisable), and if the water hardness is more than 15 fr it is necessary to install also a water softener in order to keep the water within the desired limits.

Tipycal problems of an heating system The scope of heating system water characteristic limits definition is to eliminate or substantially reduce the problems related to the water of these heating systems. We can resume these problems that seriously affect the efficiency of the system or cause substantial energy losses as follows: Scale: scale formation is due to precipitation of the salts that constitute the hardness of the water, that deposit on the pipes. These formations can have different levels of hardness and cohesion. They cause a reduction of the efficiency of the system, of the reduced heat exchange, of the obstruction of the pipes, and often are responsible of the start up of corrosion process. Calcium carbonate’s and magnesium hydrate’s precipitation create unsolvable, sticky and hard deposit that have also an high heat insulating characteristic. The heat exchange coefficient of 3 mm of limestone is equal to 250 mm of steel plate: calculations show that a limestone layer of 2 mm causes an increase of 25% of consumption. Scale formation can be avoided using chemical stabilization treatments and or softening treatment by means of resin whit ionic exchange. Corrosion: generally speaking the corrosion is caused by an electrochemical process that removes the metal surface, which can in the end obtain its perforation. Corrosion is enhanced by the presence of oxygen and origins from non peculiar characteristics of the water or from non homogenous situations such as contact between two different metals, contact with solid substances, 211

scale or mistakes in the design. When we consider the metal sheets or the system pipes or the boiler pipes they do not absorb the oxygen for the Ho2 molecule but from the micro air bubbles naturally dissolved in the water. As a consequence, the steel is in contact with water and it absorbs oxygen contained in the micro bubbles an generates iron oxide (rust) with its characteristic red colour (4 Fe + 3 O2 = 2Fe2O3). Continuous oxidations lead to a reduction of the thickness of the metal, and in the end to the complete perforation. If the system on the other hand remains well protected against external environment and it is possible to avoid relevant water topping up, the oxygen content inside the system reduces progressively, in this case a partial oxidation in lack of oxygen takes place, and the result is magnetite formation (Fe3O4) with its back characteristic colour, which can prevent against possible corrosion. Deposit: deposits are the result the organic and inorganic substances unsolvable substances contained in the water. They differ from scale because they are incoherent. They are caused by the original characteristic of the water, by the atmospheric pollution (in case of system that are in contact with the atmosphere) and can generate the same problems described in case of scale. Deposit must not be underevaluated, even on recent systems (5-6 years old) and before the substitution of the boiler it is necessary to clean the system with basic dispersant, paying attention that the basic dispersant product has the necessary time to work properly in the system. In case of old systems, or when it is not clear its age, it is advisable to use a dirt separator on the return side of the system. Deposits anyway can be avoided filtrating properly the filling water, by draining properly and regularly the system and by chemically treat the water. Biological proliferation: it includes all of the organic forms of life like alga, mildews, bacteria, fungus. Their growth is fostered by light, heat and the presence of deposits. Autotrophic bacteria (i.e. iron bacterium or sulphate-reducer bacteria) are particularly dangerous, as they are the main cause of local corrosion phenomena. To prevent biological proliferation the use of biocides is advisable.

Precautions to be taken in modern heating systems According to what above described, the following precautions have to be taken in addition to water treatment, to prevent the water from getting in contact with air: • to fit the system up with closed expansion vessel; • the pre-charge pressure of the system must be higher than atmospheric pressure; • to use only gas-tight materials for the system. An heating system, once completely filled up and correctly vented, should not be continuously topped up. In case it was necessary, the procedure shouldn’t be automatically carried. Experience shows that the previous issues, if underestimated, may result in serious consequences for the system as the heat generator damages or a non-correct operation of other components of the system itself. Furthermore, correct water treatment and careful system design are even a sizable advantage from an economic point of view as they result in less maintenance expenses and better global heat transfer.

212

Solutions for centralized heating systems installations

213

Quality Environment Safety are Baxi strategic aims and the awarded certifications ensure compliance with the specific regulations

36061 BASSANO DEL GRAPPA (VI) - ITALY Via Trozzetti, 20 marketing@baxi.it www.baxi.it The Company assumes no responsibility for any possible contents mistakes, and reserves the right to make changes in products, due to technical or commercial demands, at any time without notice. Baxi S.p.A. 03-11