Luna3 Comfort HT
Gas wall hung condensing boilers
Baxi condensing solutions: today and tomorrow’s sustainable comfort
Baxi condensing solutions Baxi believes that the future depends on the constant development of new high technology products. Employing skilled engineers fully dedicated to research and development, Baxi manufactures an award-winning range of gas wall hung condensing
boilers distinguished by high performance (up to 109,8% efďŹ ciency), wide output range (from 12 to 100 kW), energy saving (35% cut in gas consumption*), remarkable pollutant emission reduction (80% of NOx and 90% CO). * Compared to a traditional boiler
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Luna3 Comfort HT
Baxi has implemented Luna3 Comfort range with Luna3 Comfort HT new condensing boilers, provided with a remote control panel (wire connection) that, in addition to an easy setting and an immediate diagnostics, enables you to easily interact with the boiler. HT boilers use the new condensing technology recovering almost all the heat available through the combustion without wasting energy into the air. The programmable thermoregulation interface, supplied with the boiler, has a modulating regulation that guarantees the maximum efďŹ ciency in the boiler’s operation and consequently a considerable reduction of consumptions.
Luna3 Comfort HT 240
20 kW 24 kW
heating output DHW output
280
24 kW 28 kW
heating output DHW output
330
28 kW 33 kW
heating output DHW output
1.120
12 kW
heating output
1.240
24 kW
heating output
1.280
28 kW
heating output
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Condensing technology Condensing technology is the latest face in boiler innovation. By employing pre-mixing burner know how, condensing boilers ensure higher performance: almost all the heat available through combustion is recovered without wasting energy into the air, as happens with traditional boilers.
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Luna3 Comfort HT Environmentally friendly Condensing pre-mixing boilers are synonymous with energy savings and reduced emissions. Used in low temperature systems, condensing boilers tipically facilitate a cutback of 35% in gas expenditure. Their ability to signiďŹ cantly reduce noxious gases (up to 80% of NOx and 90% of CO) also makes condensing boilers environmentally friendly thanks to the use of pre-mix burners. NOx and CO are pollutants that have an adverse impact on the environment (e.g. acid rain), and Baxi is continually researching new environmentally sustainable solutions.
Comfort right at your ďŹ ngertips The remote control panel, supplied with Luna3 Comfort HT, guarantees a complete comfort managing. The interaction with the boiler is easier thanks to the information clearly displayed in the wide LCD and dedicated push-buttons for the heating and DHW temperature regulation. The panel works also as modulating room thermostat and is provided with a 2 levels weekly timer.
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High performance
MODULATION RATIO
MODULATION RATIO 1÷5 FOR
Wide modulation ratio Luna3 Comfort HT is provided with a wide modulation ratio (1÷6) to cut down the number of repeated boiler’s switching on/off thanks to reduced minimum output: besides a better boiler working you will obtain lower consumptions and lower gas expenditures.
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This feature is profitable also in integrated systems (instantaneous boiler combined with solar system): regular working of the boiler ensures hot water and comfort.
Luna3 Comfort HT
★★★★
Noiseless of HT boilers
Hydraulic group
Luna3 Comfort HT is quiet in all operation phases thanks to the soundproofing of the combustion chamber and to the special components.
In Luna3 Comfort HT the pre-heating function can be selected: after any hot water demand, the boiler keeps the primary circuit in temperature so that the following hot water demand will have the desired temperature immediately. This function will deactivate automatically after 60’ of no water demand to contain energy consumption. For heating only models, it is possible to easily connect and control an external cylinder thanks to the built-in 3 way electric valve.
High energetic efficiency
Outdoor sensor
Luna3 Comfort HT boilers have obtained 4 stars (★★★★) energetic efficiency according to European Directive 92/42/CEE.
Luna3 Comfort HT has a built-in weather compensation function (outdoor sensor available as option) to adjust the heating flow temperature according to the external temperature.
Low and high temperature systems
Connection to solar systems
The electronics of Luna3 Comfort HT enables to manage also low temperature systems. For mixed systems you can use the Baxi Mixed System Kit available as option.
Combi models are designed to be easily connected to Baxi integrated solar systems. For the installation, please follow the instruction manual.
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Technical features Quality and reliability of Baxi boilers range, have always been guaranteed by a careful choice of each component. Their positioning has been thought to make them easily reachable, making the service easier. Luna3 Comfort HT is provided with all regulation and control systems to ensure the maximum comfort and safety: • Electronic continuous flame modulation • Automatic gradual ignition and control by flame ionization • Electronic temperatures control by NTC sensors • Overheat limit thermostat to protect the primary exchanger • Hydraulic pressure switch to prevent boiler’s operating in event of low water • Post circulation of the pump in central heating and sanitary modes • 3 bar pressure relief valve • On sight manometer to easily check the system pressure • Grade of protection: IPX5D
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Luna3 Comfort HT
Stainless steel heat exchanger with soundprooďŹ ng composite casing, resistant to heat and corrosion.
Air inlet collector thanks to its special design, the boiler is able to work with very low outputs granting a relevant noise reduction
Steel Burner stainless steel AISI 316L with double chamber to optimize the combustion
Modulating fan to have a perfect air/gas mixing
Enhanced DHW exchanger made of stainless steel plates to ensure the maximum heat exchange (combi models)
3 way electric valve with electric full anti-frost device and pre-heating function.
Gas valve with double safety solenoid
3 speeds pump low energetic consumption with an electronic anti-block device
Brass hydraulic group to guarantee lasting reliability
Condensing trap in an easy checking position.
Expansion vessel up to 10 lt capacity, for systems with high water content.
Flue intake removable without tools easy access for the combustion analysis
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Remote control panel: immediate control and diagnostics The new generation of Baxi condensing boilers is supplied with a wide control panel (with a LCD display and wire connection) to guarantee the remote managing of the boiler. The regulations are done directly on the remote control. The advanced electronics enables the installation in low and high temperature systems. Selection of info/ programming mode
Set of temporary special functioning (i.e. holidays, presence, shower setting)
DHW temperature UP
Room temperature/ flow temperature UP
DHW temperature DOWN
Room temperature/ flow temperature DOWN
On/off winter/summer heating only/OFF (working antifrost)
Confirmation/ reset
Heating programming: automatic/manual/off
Comfort/economy selection
Main functions
Special function Directly from the control panel the user can activate the SHOWER SETTING, temporarily modifying the domestic hot water temperature, that in a second time will return to the previously set temperature.
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• All boiler’s parameters setting and display: room temperature, heating flow, climatic curve and DHW temperature setting, heating and DHW set temperature, outdoor temperature display (if the outdoor sensor is connected), level of modulation, hot water flow rate. • Self-check and recording of the latest anomalies. • Control of the remote control’s zone valve through the boiler’s electronics. • Built-in weather compensation function. When the external sensor is connected (available as option), the electronics selects automatically the more suitable climatic curve, adapting the heating flow temperature according to the external temperature and room temperature. • Central heating mode: 2 levels weekly timer (comfort/economy); the boilers’ functioning settings can be done for single days or for groups of days. • DHW mode: 4 levels daily timer (heating only versions with indirect cylinder connected). • Temporary central heating function selection: possible forcing of the programs for temporary functioning (i.e. holiday, presence setting). • Pre-heating function: after any hot water demand, the boiler keeps the primary circuit in temperature so that the following hot water demands will have the desired temperature immediately. This function will deactivate automatically after 60’ of no water demand to contain energy consumption.
Luna3 Comfort HT
Combi
Maximum DHW heat input Maximum heating heat input Maximum DHW heat output Maximum heating heat output 80/60°C Maximum heating heat output 50/30°C Minimum heat output 80/60°C Minimum heat output 50/30°C
kW kW kW kW kW kW kW
240 24,7 20,5 24 20 21,6 4 4,3
280 28,9 24,7 28 24 25,9 4,8 5,1
Heating only 330 34 28,9 33 28 30,3 5,6 6,1
1.120 12,4 12 13 2* 2,2*
1.240 24,7 24 25,9 4,8 5,1
1.280 28,9 28 30,3 5,6 6,1
★★★★ 109,8 97,6 105 107,3 5 -5 10/0,5 20/80 35/60 18,9
★★★★ 109,8 97,6 105,2 107,5 5 -5 8/0,5 20/80 35/60 -
★★★★ 109,8 97,6 105,1 107,5 5 -5 8/0,5 20/80 35/60 -
★★★★ 109,8 97,6 105 107,3 5 -5 10/0,5 20/80 35/60 -
Energetic efficiency (92/42/CEE) Average efficiency (DIN 4702-T8) Nominal efficiency 80/60°C Nominal efficiency 50/30°C Efficiency 30% NOx class (EN 483) Minimum working temperature Expansion vessel capacity/pre-charge Heating temperature range DHW temperature range DHW production ΔT 25°C (1)
★★★★ ★★★★ 109,8 109,8 97,6 97,6 105,1 105 107,5 107,5 5 5 °C -5 -5 l/bar 8/0,5 8/0,5 °C 20/80 20/80 °C 35/60 35/60 l/min 13,8 16,1
Minimum capacity DHW flow rate Minimum pressure heating circuit Maximum pressure DHW circuit Maximum pressure heating circuit Coaxial flue system Ø 60/100 max length Dual flue system Ø 80 max length Maximum flue mass flow rate Minimum flue mass flow rate Maximum flue temperature
l/min bar bar bar
2 0,15 3 8
2 0,15 3 8
2 0,15 3 8
3 -
3 -
3 -
mm
10
10
10
10
10
10
mm kg/s kg/s °C
80 0,012 0,002 73
80 0,014 0,002 75
80 0,016 0,003 75
80 0,006 0,001 73
80 0,012 0,002 73
80 0,014 0,003 70
mm kg
44,5
45,5
45
46
150 IPX5D
155 IPX5D
150 IPX5D
155 IPX5D
Dimension (h x l x p) Net weight Gas type Power consumption Grade of protection
% % % %
W
760x450x345 46,5 44 Natural gas/LPG 160 150 IPX5D IPX5D
*Boiler working with Natural gas. In case of LPG conversion the minimum output is 3,9 kW (80/60°C) and 4,2 kW (50/30°C) (1) without flow restrictor
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Luna3 Comfort HT 240, 280, 330
Luna3 Comfort HT 1.120, 1.240, 1.280
HEAD mH2O
Flue system
Luna3 Comfort HT 1.120
III speed II speed I speed FLOW RATE (l/h)
HEAD mH2O
Luna3 Comfort HT 240 - 1.240 - 280
III speed I speed
II speed
FLOW RATE (l/h)
HEAD mH2O
Luna3 Comfort HT 1.280 - 330
II speed I speed FLOW RATE (l/h)
MR Heating system flow G 3/4 US DHW outlet G 1/2 MB Storage tank flow G 3/4 GAS Gas inlet ES Domestic mains water inlet G 1/2 RR Heating system return G 3/4 SC Condensing trap possible to connect on a pipe Ø 21 A Boiler hanging points. Distance between hanging points: 425 mm B Distance between hanging points and hydraulic connection
Accessories included • • • • • •
Filling tap Drain tap Gas tap Domestic mains water tap with filter Telescopic pipes with nipples Template and fixing screws
On request heating flow/inlet taps
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III speed
Luna3 Comfort HT Coaxial flue system L max = 10m Ø 60/100 L max = 25m Ø 80/125 L
L
140,5
127 min
177
L 450
345
L L max = 9m Ø 60/100 L max = 24m Ø 80/125
L max = 10m Ø 60/100 L max = 25m Ø 80/125 L L
L
L
L
L
LAS chimney L max = 10m Ø 60/100 L max = 25m Ø 80/125
L max = 9m Ø 60/100 L max = 24m Ø 80/125
L max = 8m Ø 60/100 L max = 23m Ø 80/125
Dual flue system 140,5
159 min
110 120 110
177 345
L max = 15m
L max = 14m
L1 + L2 max = 80m L2
L1
L2
L1
The maximum length of the air duct is 15 metres
Flue system
Max length (m)
Length reduction with a 90° bend insertion (m)
Length reduction with a 45° bend insertion (m)
Flue discharge Ø (mm)
0,5
100
Coaxial duct
Ø 60/100
10
1
Ø 80/125
25
1
0,5
125
Dual flue tube
Installation with chimney terminal Ø 60
30
3
1,25
60
Installation with chimney terminal Ø 80
80
0,5
0,25
80
Installation with chimney terminal
15
0,5
0,25
133
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Accessories (available as option) Coaxial flue system PP Coaxial flue tubes with terminal 60/100 HT
PP Coaxial vertical chimney terminal HT
KHG 714059611
KHG 714093510 (+ KHG 714093910)
PP Coaxial flue tubes extension 60/100 HT
Flat roof title HT Ø 125
L=1000 KHG 714059513
KHG 714093610
PP Coaxial 87° bend 60/100 HT
Pitched roof tile HT Ø 125
KHG 714059714
KHG 714093710
PP Coaxial 45° bend 60/100 HT
Internal sealing collar Ø 100
KHG 714059814
KHG 714017710
Dual flue system PP Dual flue system Ø 80 KHG 714059113
PP Tube Ø 80 L = 1000 KHG 714059411 L = 500 KHG 714059910 PP Tube Ø 60 L = 1000 KHG 714075310 L = 500 KHG 714075210
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Internal sealing collar Ø 80
PP Reduction from Ø 80 to Ø 60
KHG 714018510
KHG 714075610
Luna3 Comfort HT
Dual flue system PP Coaxial vertical chimney terminal Ø 80 / 125 KHG 714093510 (+ KHG 714093810)
PP Dual flue tubes adapter for coaxial chimney
Tube Ø 80 centring kit. (pack of 5)
KHG 714093610 Ø 80 KHG 714037411 Ø 60 KHG 714051510
Clamp centring kit Ø 80 KHG 714106110
KHG 714093810
Pitched roof tile Ø 125. The pitch can be corrected form 15° to 45° KHG 714093710
PP Vertical flue system Ø 80 B23 model
Tube Ø 80 supporting bracket. (pack of 5)
KHG 714111010
KHG 714037310
PP Bend Ø 80
External sealing collar Ø 80
87° KHG 714059211 45° KHG 714059311
Flat roof tile Ø 125
Dual flue terminal Ø 80 KHG 714010410 Ø 60 KHG 714037210
KHG 714018411
PP Bend Ø 60 90° KHG 714075410 45° KHG 714075510
Flexible ducting system
PP flexible tube Ø 80 L=1,5 m KHG 714105710 L=20 m KHG 714105810
PP 90° bend Ø 80 with supporting bracket and condensate draining KHG 714105910
PP 90° bend Ø 80 with supporting bracket
Flexible centring kit Ø 80 (pack of 3)
Triple lips gaskets kit Ø 80 (pack of 5)
KHG 714106010
KHG 714106210
KHG 714111210
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Quality Environment Safety
Quality Environment Safety are Baxi strategic aims and the awarded certiďŹ cations ensure compliance with the speciďŹ c regulations
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36061 BASSANO DEL GRAPPA - Italy Via Trozzetti, 20 Tel. +39 0424 517111 - Fax: +39 0424 38089 marketing@baxiinternational.com 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. 05-08 (C)