BAXI SOLAR INFO TECH_03_12 by Baxi SPA

Solar Info Tech

Ed. 03/2012

Baxi BAXI, a BDR Thermea company and one of the leaders of heating sector in Europe, has a proud tradition of developing and producing boilers and heating systems to the highest technological standards. For over 30 years, BAXI has provided a wide range of cutting-edge solutions, anticipating market evolutions and paying attention to customers' needs. Baxi has further developed its range of products with a wide condensing boilers' offering and integrated solutions spoiling renewable energies.

• Condensing boilers: over 40 models, wall-hung and floor-standing with an output range from 12 to 320 kW, for single and cascade installations • Gas boilers: wall-hung and floor-standing, from 15 to 33 kW • Solar systems: collectors for forced draft installation with single or double coil cylinders (from 200 to 3000 litres); collectors for natural draft, single or double (one or two) collectors with 150, 200 or 300 litres cylinders. • Heat boxes: wireless built-in heat boxes, heating only and combi 2

Solar Info Tech

Highest quality standards Baxi has been very successful thanks to the attention to its products quality. Back in 1993 Baxi was awarded the ISO 9001 Certification and in 2002 the ISO 9001:2000 Certification, in order to reach constantly the highest levels of quality. As Baxi recognizes environment, health and safety protection as strategic aims, other prestigious acknowledgements came in 2001 (ISO 14001) and in 2004 (OHSAS 18001). Baxi success is based on perfect agreement of all its components, people, products and technology.

Quality Environment Safety

Integrated systems Baxi has always been active in the development of solutions which ensure the maximum environmental respect. Baxi is also aware that next futureâ&#x20AC;&#x2122;s heating solutions are based on the integration between boilers and systems working with renewable energies.

Following this philosophy, Baxi has developed the integrated solar system combining the excellent technology of Baxi boilers with a complete range of solar collectors and cylinders for forced and natural draft installations. A concept of intelligent comfort which advantages are low pollutant emissions (ecological comfort) and high energy efficiency.

Solar Info Tech

Index Principles of solar energy

pag. 6

Components of the solar system

pag. 12

â&#x20AC;˘ Forced draft installation systems

pag. 14

-Vacuum tubes

pag. 18

-Solar storage tanks

pag. 19

-Regulation accessories

pag. 34

â&#x20AC;˘ Natural draft installation systems

pag. 38

Hydraulic connections SB 25+ / SB 20+

pag. 39

Baxi solar collectors installation SB 25+ / SB 20+

pag. 40

Baxi solar collectors installation SB 100

pag. 60

Baxi vacuum tubes collectors installation SVB 26

pag. 60

Natural draft solutions

pag. 62

Accessories

pag. 64

References

pag. 67

Installation schemes examples

pag. 69

Solar Wizard

pag. 74

Principles of solar Energy Smart comfort: the integrated Baxi solar system Sun energy: an opportunity to be exploited Every object directly exposed to the sun absorb heat and increase its temperature. As a consequence of the chemical reactions that take place in the mass of the sun, a constant stream of energy is produced as electromagnetical radiation. We define the “solar constant” as the amount of incoming solar electromagnetic radiation per unit area, measured on the outer surface of Earth's atmosphere in a plane perpendicular to the rays. The solar constant includes all types of solar radiation (infrared rays, UV rays, etc.), not just the visible light. It is measured to be roughly 1353 watts per square meter (W/m²), though this fluctuates by about 6.9% during a year (from 1,412 W/m² in early January to 1,321 W/m² in early July) due to the Earth's varying distance from the Sun, and typically by much less than one part per thousand from day to day. The approximate average value cited, 1353 W/m², is equivalent to 1.96 calories per minute per square centimeter, or 1.96 langleys (Ly) per minute.

Percentage of energy

Wave lenght 0-0,38 µm

0,38-0,78 µm

0,78- ∞ µm

47%

48%

UV rays

Visible

Infrared rays

Energy 95 W/m²

640 W/m²

618 W/m²

Average of the solar constant 1353 W/m²

As above stated, the Earth receives a total amount of radiation determined by its cross section but, as it rotates, this energy is distributed across the entire surface area. Moreover, at any given moment, the amount of solar radiation received at a certain location on the Earth's surface depends on the state of the atmosphere and the location's latitude. According to what described so far, we can state that many countries of the European Continent are well located in order to successfully exploit Sun energy.

Solar Info Tech Receiving system It’s possible to get electricity and heat from solar energy: a thermal solar system converts the solar radiation into heated water to be used for home consumption. The thermal solar collectors are the devices able to perform this conversion.

The inclination of solar collectors The inclination of solar collectors is the angle between the plane of their surface and the horizontal surface they rest on. To optimize collectors efficiency, the angle between collectors surface and incident rays should be 90°. If collectors rest on a pitched roof it’s advisable to keep the same inclination of the roof. On the other hand, if they rest on a flat roof the following indications should be considered when deciding the collector inclination: • Summer 20 – 40° • Winter 50 – 65° • Middle seasons 40 – 60°

Inclination angle between the collectors and the horizontal plate

The orientation of solar collectors While designing a solar system itâ&#x20AC;&#x2122;s compulsory to take into proper consideration the orientation of the collectors

SOUTH

Orientation angle of the collectors toward South

It is easy to determine the correlation among collectors inclination, orientation and solar radiation in the in the diagram below reported. Thus, itâ&#x20AC;&#x2122;s possible to make a rough calculation of the collector efficiency according to different inclination values. Annual radiation

Inclination angle

Azimut angle 8

Inclination angle

Solar Info Tech Helpful advices for designers Thanks to heat collected by solar panels it’s possible to satisfy DHW and Central heating demands. The map here below estimates the energy amount that irradiates a solar panel operating in standard condition (surface 1 m², inclination 30°, perfectly facing south) placing it in different areas.

Daily DHW requirements (litres/day) according to dwelling net surface can be estimated by mean of the chart below reported (conventionally incoming water temperature is 15°C, delivery DHW temperature is 40°C).

DHW chart UNI TS 11300 Surface (m²)

100

120

240

DHW Volume (l/g)

103,2

128,6

152,5

175,3

260 9

Efficiency of solar collectors The solar collector efficiency is defined as the ratio between the net absorbed energy and the total incident solar energy in the same period. We can define the net absorbed energy per square meter (qu) as the difference between the total absorbed energy (qa) and the heat losses (qp) cause by the panel itself because of conduction, convection and radiation phenomena.

II.1

(

)

where m/Ac is the specific flow rate of the heat transfer fluid, cp is the specific heat coefficient, Ti and Tu are the incoming and delivery temperatures, Ac can be the total net or gross collectors absorbing area. The total absorbed energy qa is: II.2 where I is the solar radiation per mÂ˛, and nopt is the optical efficiency of the collector. The total amount of heat losses (qp) is: II.3 where Ta is the ambient temperature, Tp is the temperature of the colletor (we assume it to be constant), and Uc is the thermal dispersion coefficient of the collector. From the 3 previous formulas we can obtain: II.4 However, this equation isnâ&#x20AC;&#x2122;t so practical because Tp is mostly unknown. We prefer to use the Bliss equation that permits to express qu as a function of the inner water temperature (Ti). II.5 where FR is the heat removal factor of the collector and Ta is a term that keeps count of the radiation transmitted through the glass cover as a whole and the radiation absorbed by the collector plate . The FR value is less than 1 and represents the ratio between the energy really absorbed and the energy that would be absorbed if all the collector plate temperature was equal of inner water temperature. It depends on the thermal exchange between the collector and heat transfer fluid. It is possible to calculate the efficiency by dividing the previous equation (net absorbed energy) by I (solar radiation) that is the available energy amount. II.6

Solar Info Tech In the equation above, the first term represents the percentage of absorbed energy in comparison with the incident one and it’s constant for each collector because it’s related to glass optical characteristics and collector plate characteristics. The second term represents the total amount of wasted energy and depends on the delta between fluid temperature and ambient temperature. It depends on the insulation characteristics of the collector, as a consequence. The greater is the value of the first term and the lower is the value of second term, the better is the collector quality. By representing the η0 tendency by graph, we can remark that it decreases while temperature increases, mostly due to the UC variation. Furthermore, the point of intersection between the curve and the x-axis represents the “stagnation temperature” of the collector. In this condition the incident energy is totally dissipated. So, it is possible to evaluate the collector quality by observing its η0 specific curve. According to UNI EN 12975-2 (2001) norm, the collector quality is better represented by the following formula that was obtained from experimental data :

II.7

where η0, a1 and a2 must be declared by the collectors manufacturer, Tm is the average temperature of the heat transfer fluid and I0=800 W/m². To summarize, we can state that the collector efficiency mostly depends on three terms that change throughout the year: the average temperature of the heat transfer fluid (Tm), the ambient temperature (Ta) and the radiant energy (I). Moreover, ambient temperature and radiant energy are both dependent on the geographic position. Thus, different software are currently used to correctly evaluate the efficiency and the results must be correctly interpreted. Just for example, by comparing Baxi SB25+ and SVB26 thanks to the diagram below, we can stat that SB25+ will show better performances than SVB26 if installed in geographic areas with greater irradiation and average ambient temperature. On the other hand, in colder geographic areas with lower irradiation, SVB26 will be more efficient. That is due to better optical characteristics of plane collectors in comparison with evacutated tubes but better insulation characteristics of evacuated tubes in comparison with plane collectors. 0,900

0,800

Collector Baxi SB 25+

0,700

Collector Baxi SVB 26

0,600 0,500 0,400 0,300 0,200 0,100 0,000 0,000

0,050

0,100

0,150

0,200

0,250

Tm - Ta |

Solar system components Circulation systems The circulation of the heat transfer fluid can be natural of forced. Natural circulation refers to the ability of a fluid in a system to circulate continuously, with gravity and changes in heat energy (temperature) being the only driving force. This force is known as “thermal head” or “thermal driving head”. Many fluids at common temperatures expand when they are heated, becoming less dense. Correspondingly, they become denser when they are cooled. At the heat source of a system of natural circulation, the heated fluid becomes lighter than the fluid surrounding it, and thus rises. At the heat sink, the nearby fluid becomes denser as it cools, and is drawn downward by gravity. Together, these effects create a flow of fluid from the heat source to the heat sink and back again. This type of circulation needs the storage tank to be located above and near the collector. In case of forced circulation, heat transfer fluid is driven by means of a thermostat controlled pump. Flow rate can be set to obtain the maximum solar energy absorption.

Types of collectors Solar panels are currently divided into two big families, depending on their structural characteristics: flat plate collectors and evacuated tubes collectors.

Liquid fluid collector with protection

Flat plane collectors A flat plate is the most common type of solar thermal collector, and is usually used to generate solar hot water. A weatherproof, insulated box containing a black metal absorber sheet with built in pipes is placed in the path of sunlight. In standard type, the collector area (i.e. the area that intercepts the solar radiation) is not always the same as the absorber area (i.e., the area absorbing the radiation). There are many flat-plate collector designs but generally all consist of a flat-plate absorber, which intercepts and absorbs the solar energy, a transparent cover(s) that allows solar energy to pass through but reduces heat loss from the absorber and a heat insulating backing.

Vitrified

Heat absorber

Insulating material

Containing covering

Solar Info Tech The flat-plate absorber is composed of a copper plate painted with an highly selective painting to increase the solar radiation absorption capacity. Copper pipes and manifolds are welded under the flat-plate absorber. A transparent glass covering is placed over the flat-plate absorber. It emits energy as infrared radiation when heated up and, being the glass opaque at this wave lengths, it recreates the greenhouse effect inside the collector. Between the outer box and the absorber we find the insulation coat (polystyrene, polyurethane, glass fibre) that must be high temperature resistant. A mixture of water and propylene glycol can be used as a heat exchange fluid to remove heat from the absorber and protect against freeze damage, up to a temperature that depends on the proportion of propylene glycol in the mixture. The use of glycol lowers the water's heat carrying capacity only marginally. The hydraulic structure of the collector is usually like harp or meander. The former has less head losses, while the latter hydraulic scheme allows a better flow balance in the collector and in serial connections

Forced draft installation systems For the forced draft installation Baxi has developed: • •

A wide range of solar collectors: gross surface from 2,01 to 10 m², with steel selective absorber A wide range of enamelled cylinders: from 200 to 3.000 litres with single and double coil

Collectors SB 25+V/O

SB25+V

• Gross surface 2,51 m2 • Collector’s optical efficiency: 82,1% (SB 25+V), 82,5% (SB 25+O) • Meander pipes: for a better heat trasmission that means high efficiency • Type of covering: single solar glass ESG, tempered and highly transparent, with a low iron content, hail-proof • Thickness of the glass: 3,2 mm • Four lateral Ø 22 fixings (quick connections) • Type of absorber: laser welded aluminium plate with highly selective Alanod Mirotherm treated copper serpentine (see Close examination pag. 16) • Type of insulation: rock wool • Insulation thickness: 40 mm placed in the lower part of the collector • Anti-corrosion anodized aluminium frame • Simple and immediate vertical or horizontal installation on flat or pitched roof or for built-in installation

Technical Data

0,9 0,8 0,7 0,6 0,5

SB 25+V

SB 25+O

Surface

2,51

0,3

Absorber surface

2,35

0,2

Aperture area

2,37

0,1

Height

2187

1147

Width

1147

2187

Depth

Weight

49 2,7

0,4

SB25+O 0,9

Collector capacity

0,8

Maximum working pressure

0,7

Thermal capacity

0,6

2,3

bar

kJ/m2K

5,98

6,74

82,1

82,5

0,5 0,4

o efficiency (with reference to the absorber surface)*

0,3 0,2 0,1

heat losses*

W/m2K

3,669

3,549

heat losses*

W/m K

0,0090

0,0123

mbar

8205

7152

0,93° a 50°

Pressure losses at 1000 l/h I

I = total incidental radiation on the collector surface (W/m²) tm = average temperature of the absorbing surface (°C) ta = room temperature (°C) 14

Incidence angle modifier (IAM factor) Stagnation temperature (I=1000 W/m2 ta=30°C)

°C

211

Peak power (G=1000 W/m2)

1932

1927

*Data based on an average temperature of the heat transfer fluid

Solar Info Tech Collectors SB 20+V/+O • Gross surface 2,01 m2 • Collector’s optical efficiency: 79,2% (SB 20+V), 80,6% (SB 20+O) • Meander pipes: for a better heat trasmission that means high efficiency • Type of covering: single solar glass ESG, tempered and highly transparent, with a low iron content, hail-proof • Thickness of the glass: 3,2 mm • Four lateral Ø 22 fixings (quick connections) • Type of absorber: laser welded aluminium plate with highly selective Alanod Mirotherm treated copper serpentine (see Close examination pag. 16) • Type of insulation: rock wool • Insulation thickness: 40 mm placed in the lower part of the collector • Anti-corrosion anodized aluminium frame • Simple and immediate vertical or horizontal installation on flat or pitched roof or for built-in installation SB 20 +V / +O 0,9

Technical Data

0,8 0,7 0,6

SB 20+V

SB 20+O

Surface

2,01

Absorber surface

1,88

Aperture area

1,9

Height

1755

1148

Width

1148

1755

Depth

Weight

34,3

35 2,16

SB 20+V

0,5 0,4

SB 20+O

0,3 0,2 0,1 0

I = total incidental radiation on the collector surface (W/m²) tm = average temperature of the absorbing surface (°C) ta = room temperature (°C)

Collectors’ field [m ]

abt 5

abt 7,5

1,87

bar

kJ/m2K

6,26

6,872

79,2

80,6

heat losses*

W/m2K

4,085

3,83

heat losses* 2

W/m2K2

0,016

0,018

Maximum working pressure Thermal capacity

o efficiency (with reference to the absorber surface)*

Sizing with a specific flow rate of 30 l / m2h * 2

Collector capacity

abt 12,5

abt 25 1

Copper pipe diameter [mm] 10 - 12 15 Stainless steel pipe diameter

DN16

(*) data valid for all Baxi solar collectors

18 22 DN20

Pressure losses at 1000 l/h

mbar

Incidence angle modifier (IAM factor)

5939

7491

0,93° a 50°

Stagnation temperature (I=1000 W/m2 ta=30°C)

°C

212,8

211

Peak power (G=1000 W/m2)

1486

1515

*Data based on an average temperature of the heat transfer fluid

Close examination Selective Alanod Mirotherm treatment This kind of selective treatment, which characterizes the new Baxi solar collectors SB 25+ / SB 20+ and SB 21+, consists of an aluminium plate anodized on both sides. With the PVD (Physical Vapor Deposition) technique, 3 layers are applied on the plate: • An antireflective metal oxides layer • An absorbing metal oxides layer, which ensures an high solar radiation absorption capacity ( ) and a weatherproof protection • An infrared rays reflective layer, which ensures low thermal emissions (e); Layer-System Antireflection layer Absorptive layer IR-reflection layer

PVD-layers

Substrates

Laser welded corrosion protective layer

Solar radiation absorption capacity sol

0,95±0,01

Thermal emissions

0.05±0.02

e 100°C

Thermal conductivity W/(m*k)

210-220

Specific weight g/cm3

2.7

1.0

Total reflection [%]

Al 1050 or more

100

0.9

AM 1.5

0.8

0.7

0.6

0.5

mirotherm

0.4

0.3 Blackbody (100°C)

0.2

10 0

0.1

0.3

0.4

0.6

0.8

1.5

Wave length [ μm]

Relative Intensity (AM 1.5, Black spotlight)

Technical Data Alloy:

Alanod-Solar Base material

mirotherm® (Al) mirosol® (Al)

Solar Info Tech Collector for large installation SB 100 • Gross surface 10,05 m² • Collector’s optical efficiency: 78,9% • Type of covering: single solar glass ESG, tempered and highly transparent, with a low iron content, hail-proof • Thickness of the glass: 4 mm • Four lateral 1” ¼ fixings • Type of absorber: laser welded aluminium plate with highly selective treated copper serpentine • Type of insulation: rock wool • Insulation thickness: 50 mm placed in the lower part of the collector • Anti-corrosion anodized aluminium frame

Technical Data

SB 100

I = total incidental radiation on the collector surface (W/m²) tm = average temperature of the absorbing surface (°C) ta = room temperature (°C)

Surface

10.05

Absorber surface

9.17

Aperture area

9.43

Height

2064

Width

4896

Depth

114

Weight

170

Collector capacity

Maximum working pressure

bar

Working output

l/h

150.75

o efficiency (with reference to the absorber surface)*

78,9

heat losses*

W/m K

3.834

heat losses*

W/m2K2

0.011

Pressure losses at 1000 l/h

mbar

35,9

Incidence angle modifier (IAM factor)

0.95 a 50°

Stagnation temperature (I=1000 W/m2 ta=30°C)

°C

234

Peak power (G=1000 W/m2)

7929,45

*data based on an average temperature of the heat transfer fluid

Cement ballast dimensions depending on wind load Cement ballast

Dimension/Weight for a couple of ballasts

Cement ballasts' weight are calculated on a friction coefficient equal to 0,6

Wind load (km/h)

30°

45°

60°

L/P/H [m]

100

2,40x0,30x0,17

295

2,40x0,30x0,21

365

2,40x0,30x0,30

520

150

2,40x0,30x0,46

795

2,40x0,30x0,48

830

2,40x0,30x0,72

1245

Vacuum tubes collectors These collectors have multiple evacuated glass tubes which heat up solar absorbers and, ultimately, solar working fluid (water or an antifreeze mix - typically propylene glycol) in order to heat domestic hot water, or for hydronic space heating. The vacuum within the evacuated tubes reduce convection heat losses, allowing them to reach considerably higher temperatures than most flat-plate collectors. The evacuated tubes draw their energy from the available light rather than outside temperature. A claimed advantage this design has over the flat-plate type is that the constant profile of the round tube means that the collector is always perpendicular to the sun's rays and therefore the energy absorbed is approximately constant over the course of a day.

Vacuum tubes collector SVB 26 • Gross surface 2,57 m² • 60,5% efficiency • Type of covering: vacuum tubes Sidney type with borosilicate glass and highly selective internal layer • Two lateral 3/4” fixings • Back reflective mirror with PVD treatment

Technical Data SVB 26

SVB 26

Surface

2,57

Absorber surface

2,36

Aperture area

2,23

Height

1560

Width

1647

Depth

107

Weight

2,27

Collector capacity Maximum working pressure Thermal capacity

o efficiency (with reference to the absorber surface)*

kJ/ m2 K

45,97

60,5

heat losses* 1

W/m2K

heat losses*

W/m K

0,01

mbar

105,7

I = total incidental radiation on the collector surface (W/m²) tm = average temperature of the absorbing surface (°C) ta = room temperature (°C)

bar

Pressure losses at 1000 l/h

Transnational incidence angle modifier (IAM factor)

1,150 a 50°

Longitudinal incidence angle modifier (IAM factor)

0,921 a 50°

Stagnation temperature

°C

292

Peak power (G=1000 W/m2)

1349,15

*data based on an average temperature of the heat transfer fluid

0,85

Solar Info Tech

Solar storage tanks The power output of a solar system is not particularly high in comparison with standard heating systems. For example, a 5 m² solar system can reach a maximum power of 2,5 kW while working under most favorable conditions. Thus, the storage tanks is one of the most important components of the system since the sun gives his maximum contribution only for few hours per day and not every day. We can roughly state the tank capacity has to be 1,5-2 times the daily DHW demand. By increasing its capacity it would be possible to store a bigger amount of energy but the inner temperature level would inevitably decrease (that means the auxiliary boiler has to switch on much more frequently).

DHW Integration Volume (1/3)

Solar Volume (2/3)

To the boiler

Exchanger

To the collector

Solar Exchanger

Cold water

Generally, 200-400 litres double coil storage tanks are the best choice for single houses and apartments. Solar circuit is connected to lower coil and auxiliary boiler to upper coil. The density difference between hot and cold water inside the tank causes temperatures stratification. Being lighter, hot water collects in the upper part of the storage tank, whereas cold water collects in the bottom. The bigger is the ratio between height and diameter, the more the temperatures stratify. Thus, the lower is the bottom temperature, the more profitably the solar system will operate even in case of scarce solar irradiation. The storage tank must be very well insulated. Thermal losses amount should be as low as possible. For example, the difference in terms of energy waste between an insulation coefficient of 3 W/°C (normal tank) and an insulation coefficient of 1,5 W/°C (standard solar tank) is roughly 450 kWh. In case of hard water, it’s advisable to keep the storage temperature lower than 60°C to avoid scale deposits and coils efficiency decrease as a consequence (a 2 mm deposit corresponds to an efficiency decrease of 20%, a 5 mm deposit to a decrease of 40%). Still regarding this matter, also the delta between inlet and delivery temperatures of the coil shouldn’t be higher than 15 K. 19

Cylinders for DHW production single coil Baxi cylinders are designed to be integrated with the solar systems, are available in a range from 200 to 3000 l, single and double coil. The range of cylinders is distinguished by: compact weights and dimensions high thermal exchange, protection against corrosion by magnesium anode, steel water tank titanium enamel coated.

Models “SC+” provided with a wider exchange surface and new stainless steel UBSS

UB 200 SC

UBSS 260 SC

UB 300 SC +

TECHNICal DaTa Cylinder capacity

UB 200 SC l

Insulation

UB 400 SC +

UBSS 260 SC

UB 300 SC

200

260

polyurethane

expanded polyurethane

UB 1000 SC

UB 300 SC +

UB 400 SC

300

400

polyurethane

injection polyurethane

UB 3000 SC

UB 2000 SC UB 400 SC +

UB 1000 SC

UB 2000 SC

UB 3000 SC

400

1000

2000

3000

polyurethane

injection polyurethane

polyurethane stiff bowls

soft polyurethane

Insulation thickness

100

Working maximum pressure

bar

Coil working maximum pressure

bar

Coil thermal exchange

36,4

115

134

Lower coil continuous rating ΔT 35K

l/h

663

894

983

1106

1130

1351

1548

2826

3293

Lower coil continuous rating ΔT 50K

l/h

464

626

688

774

791

946

1084

1978

2305

NL Index

4,2

9,9

13,8

96,2

Fixings of the lower coil

3/4"

Cold water fixing

3/4"

Hot water fixing

3/4"

1/2"

3/4"

Recirculation fixing Lateral anode dimensions

Ø33x400 M8x30

Ø33x650 M8x30

Ø33x750 M8x12 Ø33x750 M8x30

Upper anode dimensions

Ø32x520

Ø33x1040

Ø33x650 M8x12

Ø33x1040

Ø33x400 M8x12

Ø33x900 M8x12

Removable insulation

yes

Integrable electric resistance

yes

°C

6,2

6,8

11,2

11,8

13,5

28,5

20 a 1 m³/h

500 a 5 m³/h

172,8 a 1 m³/h 1555 a 3 m³/h 4321 a 5 m³/h

25 a 1 m³/h 225 a 3 m³/h 625 a 5 m³/h

34 a 1 m³/h 320 a 3 m³/h 897 a 5 m³/h

30 a 1 m³/h 270 a 3 m³/h 750 a 5 m³/h

37 a 1 m³/h 349 a 3 m³/h 979 a 5 m³/h

34,2 a 1 m³/h 320,8 a 3 m³/h 898,9 a 5 m³/h

56 a 1 m³/h 516,9 a 3 m³/h 1448,3 a 5 m³/h

60,4 a 1 m³/h 567,8 a 3 m³/h 1591 a 5 m³/h

Maximum temperature Water content in the lower coil Lower coil pressure losses

mbar 180 a 3 m³/h

Weight

103

118

178

144

206

465

670

Dimensions HxØ

1310x600

1821x550

1780x600

1797x600

1580x740

1780x700

2285x1200

2550x1300

2980x1400

Heat losses coefficient

W/K

1,6

1,83

2,1

1,9

2,4

2,1

5,5

6,7

8,3

Solar Info Tech Cylinders for DHW production double coil N EW

Models “DC+” provided with a wider exchange surface and new stainless steel UBSS

UB 200 DC

UBSS 250 DC

TECHNICal DaTa Cylinder capacity

Insulation

UB 300 DC +

UB 500 DC

UB 400 DC +

UB 800 DC

UB 1000 DC

UB 1500 DC

UB 2000 DC

UB 200 DC

UBSS 250 DC

UB 300 DC

UB 300 DC +

UB 400 DC

UB 400 DC +

UB 500 DC

UB 800 DC

UB 1000 DC

UB 1500 DC

UB 2000 DC

200

250

300

400

500

800

1000

1500

2000

polyurethane

expanded polyurethane

polyurethane

injection polyurethane

polyurethane

injection polyurethane

polyurethane stiff bowls

soft polyurethane

Insulation thickness

100

Working maximum pressure

bar

Coil working maximum pressure

bar

Upper coil thermal exchange

19,5

26,2

26,5

Lower coil thermal exchange

36,4

107

115

Upper coil continuous rating ΔT 35K

l/h

491

644

811

737

663

737

909

1106

1548

1818

Upper coil continuous rating ΔT 50K

l/h

344

451

568

516

464

516

636

774

1084

1273

Lower coil continuous rating ΔT 35K

l/h

663

894

983

1106

1130

1351

1474

2629

2826

Lower coil continuous rating ΔT 50K

l/h

464

626

688

774

791

946

1032

1840

1978

NL Index

4,2

9,9

13,8

Fixings of the lower coil

3/4"

1"¼

Cold water fixing

3/4"

1"¼

Hot water fixing

3/4"

1"¼

3/4"

1/2"

3/4"

Lateral anode dimensions

Ø33x400 M8x30

Ø33x650 M8x30

Upper anode dimensions

Ø32x520

Ø33x1040

Ø33x400 M8x12

Ø33x1040

Ø33x500 M8x12

Ø33x600 M8x12

Ø33x750 M8x12

Ø33x900 M8x12

Removable insulation

yes

Integrable electric resistance

yes

Recirculation fixing

Maximum temperature

°C

Water content in the upper coil

5,1

3,2

11,2

7,5

9,5

11,5

Water content in the lower coil

6,6

6,8

8,3

11,8

13,5

14,7

15,2

26,6

28,5

Upper coil pressure losses

mbar

12 a 1 m³/h 108 a 3 m³/h 300 a 5 m³/h

53 a 1 m³/h 159 a 3 m³/h 265 a 5 m³/h

14 a 1 m³/h 126 a 3 m³/h 350 a 5 m³/h

22,7 a 1 m³/h 213,5 a 3 m³/h 598,3 a 5 m³/h

15 a 1 m³/h 135 a 3 m³/h 375 a 5 m³/h

20 a 1 m³/h 188,3 a 3 m³/h 527,6 a 5 m³/h

18,7 a 1 m³/h 175,7 a 3 m³/h 492,3 a 5 m³/h

21 a 1 m³/h 197,5 a 3 m³/h 553,5 a 5 m³/h

24,7 a 1 m³/h 232 a 3 m³/h 650 a 5 m³/h

31,5 a 1 m³/h 295,6 a 3 m³/h 828,2 a 5 m³/h

36,7 a 1 m³/h 344,6 a 3 m³/h 965,6 a 5 m³/h

Lower coil pressure losses

mbar

20 a 1 m³/h 180 a 3 m³/h 500 a 5 m³/h

172,8 a 1 m³/h 1555 a 3 m³/h 4321 a 5 m³/h

25 a 1 m³/h 225 a 3 m³/h 625 a 5 m³/h

34 a 1 m³/h 320 a 3 m³/h 897 a 5 m³/h

30 a 1 m³/h 270 a 3 m³/h 750 a 5 m³/h

37 a 1 m³/h 349 a 3 m³/h 979 a 5 m³/h

38 a 1 m³/h 363 a 3 m³/h 1019 a 5 m³/h

33 a 1 m³/h 313,5 a 3 m³/h 878,5 a 5 m³/h

33,3 a 1 m³/h 313,5 a 3 m³/h 878,5 a 5 m³/h

52,7 a 1 m³/h 495,1 a 3 m³/h 1387,1 a 5 m³/h

55 a 1 m³/h 516,9 a 3 m³/h 1448,3 a 5 m³/h

Weight

107

119

135

190

161

174

235

243

386

465

Dimensions HxØ

1310x600

1752x550

1780x600

1797x600

1580x740

1780x700

1780x760

1905x990

2155x990

2285x1200

2550x1300

Heat losses coefficient

W/K

1,6

1,83

2,1

1,9

2,4

2,1

2,4

2,31

2,55

2,9

3,5

UBSI 300

Cylinders for DHW production with solar circulating group This is a vitrified steel DHW cylinder with 300 litres capacity and with double coil exchanger. It is enough to connect the cylinder with the solar system and the boiler. • Vitrified steel DHW cylinder with 300 litres capacity and with double coil exchanger for solar integration • Solar circulating group – supplied with the cylinder • Solar controller – supplied with the cylinder • Hydraulic group • DHW expansion vessel – 18 litres capacity – supplied with the cylinder Technical data Cylinder capacity

300

Maximum DHW pressure

bar

Maximum DHW temperature

°C

4,92

Upper coil capacity Upper coil exchange surface

m²

0,8

Lower coil thermal exchange

18,5

9,50

Lower coil capacity

UB 200 Solar

UBSI 300 l

Lower coil exchange surface

m²

1,5

Upper coil thermal exchange

37,5

Coil working maximum pressure

bar

Weight

135

Dimensions HxØ

h 1706x610 Ø

Cylinders for DHW production with solar circulating group This is a vitrified steel DHW cylinder with 200 litres capacity and with single coil exchanger. It can be connected to any combi boiler and it is ideal for the integration with a Baxi solar system. • • • •

Mixing valve and diverter valve – supplied with the cylinder Solar circulating group – supplied with the cylinder Solar controller – supplied with the cylinder DHW expansion vessel – 8 lt capacity – supplied with the cylinder • Solar expansion vessel – 18 lt capacity – supplied with the cylinder • Anti-corrosion protection by means of magnesium anode • Thermal insulation without CFC and HCFC Technical data Cylinder capacity

200

Solar coil thermal exchange ΔT 30K

Maximum DHW pressure

bar

Maximum solar circuit pressure

bar

DHW expansion vessel Pressure of the DHW expansion vessel

bar

Voltage

230

Frequency

Nominal power

Weight

145

Dimensions HxWxD

1500x600x644

Grade of electric protection

UB 200 SOlAR l

IPX4D

Solar Info Tech Cylinders for DHW production and integration with solar systems on the heating circuit UBTT 1000 (tank in tank) It is a cylinder for DHW and heating production through the integration with a solar system. Carbon steel rough tank, tank in tank type with 1000 l capacity and provided with a fixed exchanger, and a second internal enamelled carbon steel tank according to DIN 4753 p.3. A further qualitative support is granted by a built-in magnesium anode according to DIN 4753 p.6. The cylinder is externally insulated by a soft polyurethane covering, thickness 100 mm. This type of cylinder is used for heating and DHW production.

• DHW capacity: 220 l • Heating capacity: 780 l • Maximum working pressure of the puffer tank: 3 bar • Maximum working pressure of the DHW tank: 10 bar • 168 mm upper flange for DHW tank inspection • Sanitary recirculation option • 4 pieces ½”G fixings for installation of controller sensors • ½ “G fixing for temperature indicator • 2 pieces 1” ½ G fixings for eventual installation of an electrical group • Exchange surface: 2,8 m² • Thermal exchange: 63 kW

UBPT 1000/2000 (pipe in tank) This cylinder is used for DHW production ( semi-rapid), storage and water production for heating. Carbon steel rough tank, pipe-in-tank type with 1000/2000 l capacity and provided with a fixed exchanger, and a stainless steel AISI 316L wrinkled used as tank for DHW. The cylinder is externally insulated by a soft polyurethane covering, thickness 120 mm.

• Maximum working pressure of the puffer tank: 3 bar • Maximum working pressure of the DHW tank: 10 bar • 6 pieces ½”G fixings for installation of controller sensors • 5 pieces 1”G fixings • 5 pieces 1” ½ G fixings • 2 pieces 1” ¼ G fixings • Exchange surface of the lower and upper coil: 3 m² • Thermal exchange of the lower and upper coil: 93 kW 23

UBPU 1500 SC (puffer)

Cylinder used for non-DHW storage. Carbon steel rough tank, without exchanger with 1500 l capacity, externally insulated by a soft polyurethane covering, thickness 100 mm. • Maximum working pressure of the puffer tank: 3 bar • Maximum working pressure of the DHW tank: 10 bar • 4 pieces ½”G fixings for installation of controller sensors • 2 pieces 1”G fixings • 8 pieces 1” ½ G fixings • Exchange surface of the lower and upper coil: 3,6 m² • Thermal exchange of the lower and upper coil: 80 kW TECHICal DaTa Cylinder capacity

Insulation Coil

UBTT 1000

UBPT 1000

UBPT 2000

UBPU 1500 SC

1000

2000

1500

soft polyurethane

single

double

single

100

120

100

Insulation thickness

Working maximum pressure

bar

Working maximum pressure in the coil

bar

Upper coil thermal exchange

135

Lower coil thermal exchange

177

Upper coil continuous rating ΔT 35K

l/h

1668

2322

Upper coil continuous rating ΔT 50K

l/h

2383

1800

Lower coil continuous rating ΔT 35K

l/h

1695

1668

3044

2187

Lower coil continuous rating ΔT 50°K

l/h

1187

2383

4349

1531

NL Index

Fixings of the lower coil

Cold water fixing

1’’ male

1 "½

1" ½

Hot water fixing

1’’ male

1" ½

Recirculation fixing

1’’ male

Ø33x400 M8x30

Removable insulation

yes

Integrable electric resistance

yes

°C

Water content in the lower coil

19,7

Water content in the upper coil

17,8

25,8

22,8

50 a 1 m³/h 469,8 a 3 m³/h 1316,4 a 5 m³/h

Upper anode dimensions

Maximum temperature

Upper coil pressure losses

mbar

40,7 a 1 m³/h 382,5 a 3 m³/h 1071,6 a 5 m³/h

Lower coil pressure losses

mbar

39,2 a 1 m³/h 367,9 a 3 m³/h 1030,8 a 5 m³/h

40,7 a 1 m³/h 382,5 a 3 m³/h 1071,6 a 5 m³/h

64 a 1 m³/h 602,3 a 3 m³/h 1687,6 a 5 m³/h

45,4 a 1 m³/h 426,2 a 3 m³/h 1194 a 5 m³/h

245

210

325

230

Dimensions HxØ

2090x990

2110x1030

2380x1340

2150x1300

Heat losses coefficient

W/K

4,1

4,3

6,5

5,8

Weight

Solar Info Tech

Dimensions UB 200 DC

UB 200 SC 1”

1”

3/4”

1”

Ø 600

241

1”

598

516

1” 241

1”

598

516

710

890

1021

1”

1210

1275

1210

1275

3/4”

Ø 600

Upper coil thermal exchange surface 0,71 m Lower coil thermal exchange surface 0,85 m2

Coil thermal exchange surface 0,85 m2

UBSS 550

550

591

20°

45°

30°

27°

45°

30°

27°

1821

1752

1440

1376 1140

371 413

371

413

UBSS 250 DC DOUBLE COIL

UBSS 260 SC SINGLE COIL

Lower coil thermal exchange surface 1,1 m2 Upper coil thermal exchange surface 0,79 m2 25

Dimensions UB 300 DC+

UB 300 DC 1”

1”

3/4”

1”

1720

1783

1” 50

936

1033

1259

1485

241

1”

403

1”

Ø 600

Upper coil thermal exchange surface 1,3 m Lower coil thermal exchange surface 1,8 m2

Upper coil thermal exchange surface 1,2 m2 Lower coil thermal exchange surface 1,6 m2

UB 300 SC+

UB 300 SC 1”

1”

403

936

1259

1568

1720

1783

3/4”

1”

241

1”

Ø 600

Coil thermal exchange surface 1,8 m

Coil thermal exchange surface 1,6 m2

Solar Info Tech

UB 400 DC+

UB 400 DC 1”

1” 3/4”

1” 50

1562 , 8

1307

1223

604

782

975

1154

1307

1487

1”

1” Ø

282

319

1”

Ø 740

Upper coil thermal exchange surface1,3 m2 Lower coil thermal exchange surface 2,2 m2

Upper coil thermal exchange surface 1,4 m2 Lower coil thermal exchange surface 1,84 m2

UB 400 SC+

UB 400 SC 1”

1487

1”

604

1223

1307

1560

3/4”

1” Ø Ø

Coil thermal exchange surface 2,2 m2

282

319

1”

Ø 740

Coil thermal exchange surface 1,84 m2 27

Dimensions UB 500 DC

Upper coil thermal exchange surface 1,3 m2 Lower coil thermal exchange surface 2,4 m2

UB 800-1000 DC Ø ext Ø int 1 1/4"

Dimensions Description

1 1/4" 1/2"

1 1/4"

1/2"

1 1/4" 1 1/2" 1 1/4"

1/2"

Q B

Øe 180 1 1/4" 1 1/4"

F 1 1/4"

800 Litres

1000 Litres

Heigth

1905

2155

Ø ext

Diameter (including insulation)

990

Ø int

Internal diameter

790

Cold water inlet (1”¼)

255

Coil outlet (1”¼)

385

Lower sensor seat (1/2”)

315

405

Lower coil inlet (1''¼)

1005

1190 1345

Upper coil outlet (1''¼)

1155

Upper sensor seat (1/2'')

175

200

Re-circulating inlet (1'')

1325

1545

Upper coil inlet (1''¼)

1495

1745

Hot water outlet (1''¼)

1625

Flange for inspection (Øint 114 – Øext 168) mm

520

540

Thermometer

1490

1749

1075

1270

1825

2075

UB 800 DC Upper coil thermal exchange surface 1,5 m2 Lower coil thermal exchange surface 2,4 m2 UB 1000 DC Upper coil thermal exchange surface 1,8 m2 Lower coil thermal exchange surface 2,4 m2

Solar Info Tech

UB 1000 SC Ø940 Ø790

1 1/4"

1/2"

2120 2020

1 1/2"

1/2"

970 1020

1050

1545

1780 1680

1840

1 1/4"

220

385

400 280

1 1/4"

Coil thermal exchange surface 2,5 m2

UB 1500 DC Ø1200 Ø1000 1" 1/4

0 R79

R175

1" 1/4

1/2" 60

1" 1/4

1/2" 1" 1" 1/4 1" 1/2

1180

1/2"

470

315

520 375

1" 1/4

2285

1935

1500

1460

582

1" 1/4

1330

1255

1735

1825

2185

2205

1" 1/4

Upper coil thermal exchange surface 2,5 m2 Lower coil thermal exchange surface 4,2 m2 29

Dimensions UB 2000 DC

UB 2000 SC 1" 1/4

1" 1/4

1/2"

1" 1/4

1/2"

1/2" 1"

1" 1/4

1650 1" 1/4

1" 1/4 1/2"

2980

1" 1/2 2430

1" 1/4 2550

2880

1" 1/4

1300

1400

1640

2040

1/2"

1075

1" 1/4 1" 1/4

Ø1200

Coil thermal exchange surface 5,2 m2

430 100

550

0 R90

640 490

1" 1/4

100

460

340

550

1" 1/4

Ø1100

Coil thermal exchange surface 4,5 m2

UB 3000 SC

1" 1/4

100

Upper coil thermal exchange surface 3 m2 Lower coil thermal exchange surface 4,5 m2

100

400

460

340

550

400

1" 1/4

Ø1100 Ø1300

R19

2210

2090

1/2"

1" 1/4

1"1/4

2550

2450

1" 1/4

985 1160

1" 1/4

1" 1/2

1310

985 1160

1310

1450 1650 1825 2000

1/2"

2210

2090

1" 1/4

2150

2550

2450

1"1/2

Solar Info Tech

UBSI 300 12

Dimensions

6 1 7 8 9

A C

P 5

O N

G L

H ØQ ØR

Upper coil thermal exchange surface 0,8 m2 Lower coil thermal exchange surface 1,5 m2

UB 200 SOlAR

1500

206

644

70 206

600

1224

G 1/2" G 1/2"

G 1/2"

WATER INLET TO THE BOILER HOT WATER OUTLET FROM THE BOILER

G 3/4" G 3/4" G 1/2" G 3/4"G 3/4"

105

DISCHARGE SOLAR COLLECTORS FLOW SOLAR COLLECTORS RETURN

COLD WATER INLET HOT WATER OUTLET HOT WATER RECYCLING

Coil thermal exchange surface 3 m2 31

Dimensions UBPT 1000 Ø1030 Ø790

Stainless steel coil

1 1/4" 1"

Exchanger 3,0 m²

1 1/2"

1/2"

1/2" 1/2" 1"

1 1/2"

2010

2110

1 1/2"

170

270

220

14-11/2"

120

Ø700

840

1520

1330

1210

1060

310

580

495

1 1/4"

Upper coil thermal exchange surface 3 m2 Lower coil thermal exchange surface 3 m2

730

1/2"

950

1130

1/2"

1450

1500

1680

1760

1 1/2" 1/2"

120 Stratification pipe

Solar exchanger 3,0 m²

UBPT 2000 1"

Stainless steel coil

1 1/4" 1" 1 1/2"

1/2"

Exchanger 4,2m2

1/2"

1 1/2" 1"

2380 2280 2260

11/2"

1 1/2"

2010 1950 1730

1 1/2"

870 970 1080 250

350

300 120

Upper coil thermal exchange surface 4,2 m Lower coil thermal exchange surface 5,5 m2

630

1 1/2" 15 - 11/2"

1100

390

750

1 1/4"

120 Stratification pipe

Solar exchanger 3,0 m2

1190 1300 1410

1470 1210

1/2"

1870

1" 1/2"

1520 1640 1760

1/2"

Solar Info Tech

UBPU 1500 SC 235

1 1/4"

1 1/2"

1/2"

1 1/2"

1/2"

1752

1/2"

372

1/2"

250

372

1 1/2"

817

1172 1342

1565

1 1/2"

1342

1752

2070 2150

Ø1200 Ø1000

Coil thermal exchange surface 3,6 m2

UBTT 1000

170

1/2"

2090

2010

1700

1 1/2"

125

1" 220

1" 270

600

800

1400

1000 1200

1" 1075 900

1150

1/2"

170 270

2035

1" 1"

2010 1980

1 1/2"

2x 1 1/2"

1600

1/2"

700

Coil thermal exchange surface 2,8 m2

Regulation accessories for forced draft installation Controllers The perfect functioning of the system can be obtained through the optimization of the flows of each circuit, reaching the right room temperature as well as measuring the spoiled energy. This goal can be reached through simple and compact controllers, which receive signals from various elements and allow to set the control temperature, the timings for switching on auxiliary boilers, etc. The controllers transform the reading of the temperature into an electric signal that switch on/off a specific process. The controller allows the fluid to get into circulation only with a real solar energy power support; it measures the temperature out of the collector and in the bottom of the tank through sensors. The differential thermostat compares both temperatures and in case the temperature is higher than the set limit, the circulating pump starts working. Apart from what explained above, the controller can be adopted in different points and for many uses inside these types of installation.

Controller “Eco” The differential temperature controller “Eco” used in the Baxi integrated solar system, is characterized by the easiness of use, thanks to a simple display, with only 4 buttons, of the system’s working.

Features: • • • • • •

Intuitive operation with an easy menu using symbols Digital temperature regulation 2 sensors that can be linked Control device of the solar circulating pump (n° of turns or ON/OFF) Protection of the collector against over temperatures Display of the anomalies and memory of all the set parameters set also in case of long electrical power interruption • Display of the instantaneous temperatures of the collector or of the ranks and of the linked cylinders

Electric schemes Controller “Eco”

e Fus

PE L N A1 N

S1 S2 S3

Phase-network

Thermal sensor of the collector

Neutral wire-network

Thermal sensor of the storage tank

Solar circulating pump Phase-relè 1

General measuring point

Solar Info Tech Controller “Comfort” The differential controller “Comfort” used in the Baxi integrated solar system, is characterized by the easiness of use thanks to a simple display, with only 4 buttons, of the system’s working. The “Comfort” controller grants a perfect regulation of solar systems installation made also by 2 banks of collectors or 2 storage tanks. It can be used also on a traditional solar installation, as well as in the 4 installation schemes.

Features: • • • • • • • • • • • • • •

Intuitive operation with an easy menu Digital temperature regulation 6 sensors that can be linked 3 programmable exits (230V / 1A) Solar tank cooling Special function for cooling/warming/different temperatures setting of the A3 Phase-relè Thermostat function Control device of the solar circulating pump (n° of turns or ON/OFF) 3 levels hourly programming on daily basis Regulator of the energy output (flow meter as optional accessory) Evacuated collector function Protection of the collector against over temperatures Display of the anomalies and memory of all the set parameters also in case of long electrical interruption Display of the instantaneous temperatures of the collector and of the cylinder

Installation schemes (controller “Comfort”)

Collector

Collector1

Flow meter Return sensor

Solar pump 1

Cylinder 1 Lower coil sensor

Cylinder 2

Solar pump 2

Collector2

Solar pump

Lower coil sensor

Collector sensor Upper coil sensor

Collector sensor

Lower coil sensor

Cylinder 1

Upper coil sensor

Collector sensor

Return sensor Flow meter

Calorimeter

Collector

Solar pump

Lower coil sensor

Solar pump 2

Cylinder 2

Lower coil sensor

Collector2

Cylinder 1

Upper coil sensor

Cylinder 1

Solar pump 1

Collector sensor

Lower coil sensor

Collector sensor

Upper coil sensor

Collector1

Flow meter

Return sensor

Flow meter Calorimeter

Calorimeter

Electric schemes Controller “Comfort”

Phase-network

Thermal sensor of the collector

Neutral wire-network

Thermal sensor of the storage tank 1

Solar circulating pump Phase-relè 1

Thermal sensor of the collector 2/ storage tank 2

Valve Phase-relè 2

Thermal sensor of the collector return

Freely programmable controller Phase-relè 3

Thermal sensor of the heating circuit/ cooling or differential temperature regulator source (optional)

Thermal sensor of the anti-frost or of the well differential temperature regulator or general measuring point (optional)

Flow meter (optional)

Solar kit Baxi solar kit has been developed to be connected to the range of the instantaneous gas boilers. It represents a compact solution which includes adjustable thermostatic mixing valve and diverter valve. If the temperature of the water warmed by the solar system does not reach the desired level of comfort, the diverter valve makes the boiler to intervene to supply DHW at the desired temperature.

Solar Info Tech Circulating group Baxi circulating group, provided with thermal insulation, includes in compact dimensions all the components for a correct working of the system and the greatest reliability.

Solar circulating group (neutral group without electronics) LSC710000063

Technical data

Safety valve (6 bar) Thermometers (also On/Off valve)

Vessel connection

Maximum working pressure

6 bar

Maximum working temperature

120°C

Safety valve

6 bar

Grundfos circulating pump

UPS 25-60

Working voltage

AC 230V

Eletricity consumption

Pump Flow meter (2-15 l/min. – 5-30 l/min. per enhanced circulating group)

Other circulating groups and controllers: Solar circulation group with controller “Eco” Enhanced circulating group Solar circulating group with controller “Comfort” Solar controller "Eco" Solar controller "Comfort"

LSC710250012 LSC710000211 LSC710000073 LSC710000023 LSC710000033

90 W

Maximum pump discharge head

Maximum pump flow

4,5 m3/h

Flow regulator

2-15 l/min

6 5 4 3 2 1 0 0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

FLOW (m³/h)

Enhanced circulating group pump chart (senza elettronica) DISCHARGE HEAD (m)

Head loss

65 W

Speed III

7 6 5 4 3 2 1 0 0

Flow

45 W

Speed II

Enhanced circulating group pump chart

Head loss

Head losses chart

. . . . .

DISCHARGE HEAD H(m)

air vent

Speed I

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

FLOW (m³/h) 37

Natural draft installation systems Baxi natural draft installation solutions are one or two SB 21+ collectors, which can be combined with 150, 200 or 300 litres cylinders.

Collector SB 21+ • • • • • • • •

Gross surface 2,01 m2 76,1% optical efficiency Type of covering: tempered glass, with a low iron content Type of absorber: aluminium plate with highly selective Alanod Mirotherm treatment (see Close examination pag. 16) Type of insulation: rock wool One collector (SB 21+) solution with 150 or 200 litres capacity cylinder Two collectors (SB 21+) solution with 300 litres capacity cylinder Installation on flat or pitched roof

Technical Data STS-150L

Collector

SB21+ 0,9 0,8 0,7 0,6 0,5

STS-200L

STS-300L**

Gross surface

2,01

Absorber area

1,88

Aperture area

1,89

Height

1753

Width

1147

Depth

Weight

34,2

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

Collector capacity

Cylinder capacity

Maximum working pressure 0.0

0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10

Thermal capacity

1.5 150

200

bar

kJ/m2K

5,44

76,1

I = total incidental radiation on the collector surface (W/m²) tm = average temperature of the absorbing surface (°C) ta = room temperature (°C)

Best percentage of non-toxic anti-frost for frost protection*

% Non-toxic anti-frost

Freezing point

-10°C

-13°C

-17°C

-21°C

-26°C

(*) Valid for all Baxi solar systems

o Efficiency (with reference to the absorber surface)* Heat losses*

W/m2K

4,33

Heat losses*

W/m2K2

0,009

Incidence angle modifier (IAM factor) Stagnation temperature (I=1000 W/m2 ta=30°C)

0,93 a 50° °C

Peak power (G=1000 W/m2) * Data based on an average temperature of the heat transfer fluid ** Flat or pitched roof

206 1428

300

Solar Info Tech Hydraulic connections SB 25+ / SB 20+ To gain the best efficiency, the hydraulic connections should be as shown below. SB20+V Anyway, for specific needs, it is possible to connect differently, with a little efficiency loss (a few percentage points).

SB25+V SB20+V

SB20+V SB25+V

SB25+O

SB25+O SB25+O

B20+O

SB20+O

SB25+O

SB20+O 39 SB20+O

Installation on flat roof with adjustable slope: SB 25+ SB 25+V

Code

N° of SB 25+V collectors (in a row) 1

LSC615254300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

LV flat-roof set for one SB25+V (incl. brackets and rails) LV flat-roof set for two SB25+V (incl. brackets and rails) LV flat-roof supplementary set for one SB25+V (incl. brackets and rails) One collector connection kit connectors only Two collectors parallel connection kit - connectors only

750085801 •

1 pc

750086201 •

1 pc

750023001 •

1 pc

2 pcs

3 pcs

4 pcs

720254101 •

1 pc

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615253300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

LV flat-roof set for one SB25+ O (incl. brackets and rails) LV flat-roof set for two SB25+ O (incl. brackets and rails) LV flat-roof supplementary set for one SB25+O (incl. brackets and rails) One collector connection kit connectors only Two collectors parallel connection kit connectors only

750086001 •

1 pc

750086501 •

1 pc

750023301 •

1 pc

2 pcs

3 pcs

4 pcs

720254101 •

1 pc

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

Solar collector SB 25+V

SB 25+O Solar collector SB 25+O

Code

N° of SB 25+O collectors (in a row)

Installation on flat roof with adjustable slope: SB 20+ SB 20+V

Code

N° of SB 20+V collectors (in a row) 1

LSC615204300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

LV flat-roof set for one SB20+V (incl. brackets and rails) LV flat-roof set for two SB20+V (incl. brackets and rails) LV flat-roof supplementary set for one additional SB20+V (incl. brackets and rails) One collector connection kit connectors only Two collectors parallel connection kit connectors only

750085501 •

1 pc

750086101 •

1 pc

750022801 •

1 pc

2 pcs

3 pcs

4 pcs

720254101 •

1 pc

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615203300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

LV flat-roof set for one additional SB20+O (incl. brackets and rails) LV flat-roof set for two additional SB20+O (incl. brackets and rails) LV flat-roof supplementary set for one additional SB25+O (incl. brackets and rails) One collector connection kit connectors only Two collectors parallel connection kit connectors only

750085901 •

1 pc

750086401 •

1 pc

750023201 •

1 pc

2 pcs

3 pcs

4 pcs

720254101 •

1 pc

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

Solar collector SB 20+V

SB 20+O Solar collector SB 20+O

Code

N° of SB 20+O collectors (in a row)

The fixing systems have been designed according to UNI EN 1991-1, which is about the necessary advices to determinate structures' load, with particular reference to wind and snow loads.

Solar Info Tech Kit for installation on flat roof: SB 25+ / SB 20+ LV frame

1 collector

2 collectors

addictional collector

SB20+V

750085501 .

750086101 .

750022801 .

SB25+V

750085801 .

750086201 .

750023001 .

SB20+O

750085901 .

750086401 .

750023201 .

SB25+O

750086001 .

750086501 .

720023301 .

N째 of elements of the kit

Kit components and contents for flat roof installation

F C G

ABCDEFGHJKLMNO-

Intermediate clamp End clamp Lower rail Upper rail Base rail Support rail Upper upright Lower upright Join stud rail Self drilling screw T-bolts M8×20 T-bolts M8×30 Bolts M8×20 Nut M8

A E

Hydraulic kit components and contents One collector connection kit connectors only

Two collectors parallel connection kit - connectors only

Additional collector connection kit

720254101.

720253501.

720239901.

N° of elements of the kit a B C D E 42

LEGENDA: A: Joining piece B: Elbow G3/4 C: Sensor elbow G3/4 D: End cap E: Clip

Solar Info Tech Ballast installation

Design limit snow load on the ground = 1.9kN/mÂ˛ NOTE: This limit will be reduced for installations where abutments create additional risks of drifting or falling snow. In high snow load areas (greater than 1kN/mÂ˛) it is recommended that a snow fence is fitted at maximum distance of 0.5m above the collector. The maximum wind load to be borne by the mounting structure depends on the height and geographical area of the site among other factors This structure must be installed in accordance with the provisions of the EN1991 standard. 43

On-roof under-tile installation: SB 25+ SB25+V Solar collector SB 25+V

Code

N° of SB 25+V collectors (in a row) 1

LSC615254300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

On-roof set for one SB20+ V & SB 25+V (incl. rails and bolts) On-roof set for two SB20+ V & SB 25+V (incl. rails and bolts) On-roof supplementary set for one additional SB 20+V & SB 25+V (incl. brackets and rails)

720241301 •

1 pc

720241601 •

1 pc

720241901 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615253300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

On-roof set for one SB25+O (incl. rails and bolts)

720241501 •

1 pc

On-roof set for two SB25+O (incl. rails and bolts)

720241801 •

1 pc

On-roof supplementary set for one additional SB 25+O (incl. brackets and rails)

720242101 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

SB25+O Solar collector SB 25+O

Code

N° of SB 25+O collectors (in a row)

On-roof under-tile installation: SB 20+ SB20+V Solar collector SB 20+V

Code

N° of SB 20+V collectors (in a row)

LSC615204300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

720241301 •

1 pc

720241601 •

1 pc

720241901 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

SB20+O

Code

N° of SB 20+O collectors (in a row) 1

LSC615203300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

On-roof set for one SB20+O (incl. rails and bolts)

720241401 •

1 pc

On-roof set for two SB20+O (incl. rails and bolts)

720241701 •

1 pc

On-roof supplementary set for one additional SB 20+O (incl. brackets and rails)

720242001 •

1 pz

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

Solar collector SB 20+O

The fixing systems have been designed according to UNI EN 1991-1, which is about the necessary advices to determinate structures' load, with particular reference to wind and snow loads.

Solar Info Tech Kit for on-roof under-tile installation: SB 25+ / SB 20+ Frame

1 collector

2 collectors

addictional collector

SB20+V

720241301 .

720241601 .

720241901 .

SB25+V

720241301 .

720241601 .

720241901 .

SB20+O

720241401 .

720241701 .

720242001 .

SB25+O

720241501 .

720241801 .

720242101 .

N째 of elements of the kit 2

Kit components and contents for on-roof under-tile installation SB25+ / SB20+

K C

J D

F G

A- Rail B- Joining plate C- End clamp D- Join stud plate E- Support bracket F- Lower bracket G- Under tile beam H- Upper bracket J- T-Bolts M8x30 K- M8 nuts L- M8 washers M- 8x60mm wood screws N- Captive 8mm washer

Solar Info Tech Hydraulic kit components and contents One collector connection kit connectors only

Two collectors parallel connection kit - connectors only

Additional collector connection kit

720254101.

720253501.

720239901.

N° of elements of the kit

LEGENDA: A: Joining piece B: Elbow G3/4 C: Sensor elbow G3/4 D: End cap E: Clip

Design limit snow load on the ground = 2.3kN/m² SB20+V SB20+O Design limit snow load on the ground = 1.9kN/m² SB25+V SB25+O NOTE: This limit will be reduced for installations where abutments create additional risks of drifting or falling snow. In high snow load areas (greater than 1kN/m²) it is recommended that a snow fence is fitted at maximum distance of 0.5m above the collector. The maximum wind load to be borne by the mounting structure depends on the height and geographical area of the site among other factors This structure must be installed in accordance with the provisions of the EN1991 standard. 47

On-roof through-tile installation: SB 25+ SB25+V Solar collector SB 25+V

Code

N° of SB 25+V collectors (in a row) 1

LSC615254300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

On-roof rail set for one SB20+ V & SB25+V (for dowel screw mounting) On-roof rail set for two SB20+ V & SB25+V (for dowel screw mounting) On-roof rail supplementary set for one additional SB 20+ & SB 25+V (for dowel screw mounting)

720242201 •

1 pc

720242501 •

1 pc

720242801 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

SB25+O Solar collector SB 25+O

Code

N° of SB 25+O collectors (in a row)

LSC615253300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

On-roof rail set for one SB25+O (for dowel screw mounting) On-roof rail set for two SB25+O (for dowel screw mounting) On-roof rail supplementary set for one additional SB 25+O (for dowel screw mounting)

720242401 •

1 pc

720242701 •

1 pc

720243001 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

On-roof through-tile installation: SB 20+ SB20+V Solar collector SB 20+V

Code

N° of SB 20+V collectors (in a row)

LSC615204300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

720242201 •

1 pc

720242501 •

1 pc

720242801 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615203300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

On-roof rail set for one SB20+O (for dowel screw mounting) On-roof rail set for two SB20+O (for dowel screw mounting) On-roof rail supplementary set for one additional SB 20+O (for dowel screw mounting)

720242301 •

1 pc

720242601 •

1 pc

720242901 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

SB20+O Solar collector SB 20+O

Code

N° of SB 20+O collectors (in a row)

The fixing systems have been designed according to UNI EN 1991-1, which is about the necessary advices to determinate structures' load, with particular reference to wind and snow loads.

Solar Info Tech Kit for on-roof through-tile installation: SB 25+ / SB 20+ Frame

1 collector

2 collectors

addictional collector

SB20+V

720242201 .

720242501 .

720242801 .

SB25+V

720242201 .

720242501 .

720242801 .

SB20+O

720242301 .

720242601 .

720242901 .

SB25+O

720242401 .

720242701 .

720243001 .

N째 of elements of the kit

Kit components and contents for on-roof through-tile installation SB25+ / SB20+

A - Rail B - Joining plate C - End clamp D - Join stud plate E - Support bracket F - T-Bolts M8x30 G - M8 nuts J - Dowel screw M12

Hydraulic kit components and contents One collector connection kit connectors only

Two collectors parallel connection kit - connectors only

Additional collector connection kit

720254101.

720253501.

720239901.

N째 of elements of the kit a B C D E 50

A - Joining piece B - Elbow G3/4 C - Sensor elbow G3/4 D - End cap E - Clip

Solar Info Tech Wind and snow loads SB20+V Sk (kN/m2)

0.8

1.3

1.8

2.3

2.8

h<50 mm

h<100 mm

h<150 mm

Sk (kN/m2)

1.6

2.4

2.8

h<50 mm

h<100 mm

h<150 mm

0.6

1.4

1.8

2.2

2.6

2.8

h<50 mm

h<100 mm

h<150 mm

0.8

1.2

1.5

1.8

2.2

2.6

2.8

h<50 mm

h<100 mm

h<150 mm

SB25+V

SB20+O Sk (kN/m2)

SB25+O Sk (kN/m2)

Design limit snow load on the ground = 2.8 kN/mÂ˛ SB20+V SB20+O SB25+V SB25+O NOTE: This limit will be reduced for installations where abutments create additional risks of drifting or falling snow. In high snow load areas (greater than SK= 1kN/mÂ˛) it is recommended that a snow fence is fitted at maximum distance of 0.5m above the collector. The maximum wind load to be borne by the mounting structure depends on the height and geographical area of the site among other factors This structure must be installed in accordance with the provisions of the EN1991 standard. 51

In-roof installation: SB 25+ / SB 20+ - Tiled roof – 150 mm skirt

SB25+V

Code

N° of SB 25+V collectors (in a row) 1

LSC615254300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 25+V 150mm skirt

720243401 •

1 pc

In-roof kit for two SB 25+V 150mm skirt

720243801 •

1 pc

In-roof extension for additional SB 25+V 150mm skirt

720244201 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615253300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 25+O 150mm skirt

720243601 •

1 pc

In-roof kit for two SB 25+O 150mm skirt

720244001 •

1 pc

In-roof extension for additional SB 25+O 150mm skirt

720244401 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615204300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 20+V 150mm skirt

720243301 •

1 pc

In-roof kit for two SB 20+V 150mm skirt

720243701 •

1 pc

In-roof extension for additional SB 20+V 150mm skirt

720244101 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

Solar collector SB 25+V

SB25+O Solar collector SB 25+O

SB20+V Solar collector SB 20+V

SB20+O

Code

N° of SB 25+O collectors (in a row)

N° of SB 20+V collectors (in a row)

N° of SB 20+O collectors (in a row) 1

LSC615203300

1 pc

2 pcs

3 pc

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 20+O 150mm skirt

720243501 •

1 pc

In-roof kit for two SB 20+O 150mm skirt

720243901 •

1 pc

In-roof extension for additional SB 20+O 150mm skirt

720244301 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

Solar collector SB 20+O

The fixing systems have been designed according to UNI EN 1991-1, which is about the necessary advices to determinate structures' load, with particular reference to wind and snow loads.

Solar Info Tech Hydraulic kit components and contents One collector connection kit connectors only

Two collectors parallel connection kit - connectors only

Additional collector connection kit

720254101.

720253501.

720239901.

NÂ° of elements of the kit a B C D E

A - Joining piece B - Elbow G3/4 C - Sensor elbow G3/4 D - End cap E - Clip

In-roof installation (150 mm skirt) SB 25+V in-roof installation

E K

S/T

F M C

X H

Z L

U Q

Z B

A - Intermediate clamp B - Side clamp C - Bottom bracket D - Top panel E - Top corner L/H F - Top corner R/H G - Top infill section W - Side lower L/H WA - Upper side lower L/H WB - Bottom side lower L/H X - Side lower R/H XA - Upper side lower R/H XB - Bottom side lower R/H J - Side cover L/H H - Side cover R/H K - Middle infill section L - Bottom section M - Bottom corner L/H N - Bottom corner R/H P - Batten Q - Wood screw (35mm) R - Wood screw (70mm) S - Coloured self drilling screw T - Coloured waterproof washer U - Nail Y - Flashing kit foam Z - Side flashing fixing tab

For kit componentsâ&#x20AC;&#x2122; detail see pag. 54-55

Kit for in-roof installation (150 mm skirt): SB 25+ SB25+V/O

a B C D E F G W Wa WB X Xa XB J H K l M N P R Q T S U Y Z O

In-roof kit for one SB 25+V 150mm skirt

In-roof kit for one SB 25+O 150mm skirt

In-roof kit for two SB 25+V 150mm skirt

In-roof kit for two SB 25+O 150mm skirt

In-roof extension for additional SB 25+V 150mm skirt

In-roof extension for additional SB 25+O 150mm skirt

720243401.

720243601.

720243801.

720244001.

720244201.

720244401.

Solar Info Tech Kit for in-roof installation (150 mm skirt): SB 20+ SB20+V/O

a B C D E F G W Wa WB X Xa XB J H K l M N P R Q T S U Y Z O

In-roof kit for one SB 20+V 150mm skirt

In-roof kit for one SB 20+O 150mm skirt

In-roof kit for two SB 20+V 150mm skirt

In-roof kit for two SB 20+O 150mm skirt

In-roof extension for additional SB 20+V 150mm skirt

In-roof extension for additional SB 20+O 150mm skirt

720243301.

720243501.

720243701.

720243901.

720244101.

720244301.

In-roof installation: SB 25+ - Pantiled roof – 300 mm skirt

SB 25+V

Code

N° of SB 25+V collectors (in a row) 1

LSC615254300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 25+V 300 mm skirt

750009801 •

1 pc

In-roof kit for two SB 25+V 300 mm skirt

750010601 •

1 pc

In-roof extension for additional SB 25+V 300 mm skirt

720525201 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615253300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 25+O 300 mm skirt

750010201 •

1 pc

In-roof kit for two SB 25+O 300 mm skirt

750011001 •

1 pc

In-roof extension for additional SB 25+O 300 mm skirt

720565601 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

LSC615204300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 20+V 300 mm skirt

750009601 •

1 pc

In-roof kit for two SB 20+V 300 mm skirt

720010401 •

1 pc

In-roof extension for additional SB 20+V 300 mm skirt

720525001 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

Solar collector SB 25+V

SB 25+O Solar collector SB 25+O

Code

N° of SB 25+O collectors (in a row)

In-roof installation: SB 20+ - Pantiled roof – 300 mm skirt

SB 20+V Solar collector SB 20+V

SB 20+O

Code

N° of SB 20+V collectors (in a row)

N° of SB 20+O collectors (in a row) 1

LSC615203300

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

In-roof kit for one SB 20+O 300 mm skirt

750010001 •

1 pc

In-roof kit for two SB 20+O 300 mm skirt

750010801 •

1 pc

In-roof extension for additional SB 20+O 300 mm skirt

720525401 •

1 pc

2 pcs

3 pcs

4 pcs

One collector connection kit - connectors only

720254101 •

1 pc

Two collectors parallel connection kit - connectors only

720253501 •

1 pc

Additional collector connection kit

720239901 •

1 pc

2 pcs

3 pcs

4 pcs

Solar collector SB 20+O

The fixing systems have been designed according to UNI EN 1991-1, which is about the necessary advices to determinate structures' load, with particular reference to wind and snow loads.

Solar Info Tech Hydraulic kit components and contents One collector connection kit connectors only

Two collectors parallel connection kit - connectors only

Additional collector connection kit

720254101.

720253501.

720239901.

NÂ° of elements of the kit a B C D E

A - Joining piece B - Elbow G3/4 C - Sensor elbow G3/4 D - End cap E - Clip

In-roof installation (300 mm skirt) SB 25+V in-roof installation

E K

S/T

F M C

X H

Z L

U Q

Z B

58-59 For kit componentsâ&#x20AC;&#x2122; detail see pag. XX

Kit for in-roof installation (300 mm skirt): SB 25+ SB25+V/+O

a B C D E F G W Wa WB X Xa XB J H K l M N P R Q T S U Y Z O

In-roof kit for one SB 25+V 300 mm skirt

In-roof kit for one SB 25+O 300 mm skirt

In-roof kit for two SB 25+V 300 mm skirt

In-roof kit for two SB 25+O 300 mm skirt

In-roof extension for In-roof extension for additional additional SB 25+V 300 mm skirt SB 25+O 300 mm skirt

750009801.

750010201.

750010601.

750011001.

720525201.

720565601.

Solar Info Tech Kit for in-roof installation (300 mm skirt): SB 20+ SB20+V/+O

a B C D E F G W Wa WB X Xa XB J H K l M N P R Q T S U Y Z O

In-roof kit for one SB 20+V 300 mm skirt

In-roof kit for one SB 20+O 300 mm skirt

In-roof kit for two SB 20+V 300 mm skirt

In-roof kit for two SB 20+O 300 mm skirt

In-roof extension for In-roof extension for additional additional SB 20+V 300 mm skirt SB 20+O 300 mm skirt

750009601.

750010001.

720010401.

750010801.

720525001.

720525401.

Flat roof installation with a 45° slope: SB 100 SB100

N° of SB 100 collectors (in a row)

Code

Gross surface 10,0 m2

LSC 61501010

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

Frame for SB 100

LNC 710010010 •

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

Immersion sleeve for SB 100

LNC 710010030 •

1 pc

Plugs kit (row installation)

LNC 710010040 •

1 pc

Connection kit for SB 100

LNC 710010020 •

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

Solar collector SB 100

LNC 710010030 • Immersion sleeve for SB 100

LNC 710010040 • Kit tappi per installazione in serie

LNC 710010020 • Connection kit for SB 100

Flat roof installation with a 45° slope: SVB 26 SVB 26

Code

(vacuum collector)

N° of SB 100 collectors (in a row) 1

LSC615270100

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

Flat roof fixing system for SVB 26

LNC 710270040 •

2 pcs

3 pcs

4 pcs

6 pcs

7 pcs

8 pcs

Support profile for 1 SVB 26 collector

LNC 710270010 •

1 pc

Support profile for 2 SVB 26 collectors

LNC 710270020 •

1 pc

2 pcs

3 pcs

Connection kit between 2 SVB 26 collectors

LNC 710270050 •

1 pc

2 pcs

Vacuum solar collector SVB 26

x4 x7

x2 x2

x 12 x6 x 13

x4 x4

x 13 x 12 x2

LNC 710270040 • Flat roof fixing system for SVB 26 60

LNC 710270050 • Connection kit between 2 SVB 26 collectors

Solar Info Tech On-roof through-tile installation: SVB 26 SVB 26

N° of SB 100 collectors (in a row)

Code

(vacuum collector)

LSC615270100

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

Pitched roof fixing system for SVB 26

LNC 710270030 •

2 pcs

3 pcs

4 pcs

6 pcs

7 pcs

8 pcs

Support profile for 1 SVB 26 collector

LNC 710270010 •

1 pc

Support profile for 2 SVB 26 collectors

LNC 710270020 •

1 pc

2 pcs

3 pcs

Connection kit between 2 SVB 26 collectors

LNC 710270050 •

1 pc

2 pcs

Vacuum solar collector SVB 26

x4 x6 x4 x4

x4 x4

LNC 710270030 • Pitched roof fixing system for SVB 26

LNC 710270050 • Connection kit between 2 SVB 26 collectors

On-roof under-tile installation: SVB 26 SVB 26

N° of SB 100 collectors (in a row)

Code

(vacuum collector)

LSC615270100

1 pc

2 pcs

3 pcs

4 pcs

5 pcs

6 pcs

Roof bracket fixing system for SVB 26 - landscape mounting

LNC 710270060 •

2 pcs

3 pcs

4 pcs

6 pcs

7 pcs

8 pcs

Support profile for 1 SVB 26 collector

LNC 710270010 •

1 pc

Support profile for 2 SVB 26 collectors

LNC 710270020 •

1 pc

2 pcs

3 pcs

Connection kit between 2 SVB 26 collectors

LNC 710270050 •

1 pc

2 pcs

Vacuum solar collector SVB 26

x2 x4 x8 x2

x4 x4 x4

x 10 x8

LNC 710270050 • Connection kit between 2 SVB 26 collectors

LNC 710270060 • Roof bracket fixing system for SVB 26 - landscape mounting 61

Natural draft solutions 1 SB 21+ COLLECTOR SOLUTION Solar system: STS 150 l LSC690001000 consists of: n째 1 SB 21+ collector 150 litres termosiphon Flat/pitched roof mounting system for 1 SB 21+ collector Hydraulic connection kit

Solar system: STS 200 l LSC69000101 consists of: n째 1 SB 21+ collector 200 litres termosiphon Flat/pitched roof mounting system for 1 SB 21+ collector Hydraulic connection kit

2 SB 21+ COLLECTORS SOLUTION Solar system: STS 300 l (pitched roof installation) LSC69000103 consists of: n째 2 SB 21+ collectors 300 litres termosiphon Pitched roof mounting system for 2 SB 21+ collectors Pitched roof frame for 2 SB 21+ collectors Hydraulic connection kit

Solar system: STS 300 l (flat roof installation) LSC69000102 consists of: n째 2 SB 21+ collectors 300 litres termosiphon Flat roof mounting system for 2 SB 21+ collectors Flat roof frame for 2 SB 21+ collectors Hydraulic connection kit

Euro Prezzo base (iva esclusa)

Solar Info Tech SB 21+ components and contents Solar system: STS 150 l

Solar system: STS 200 l

Solar system: STS 300 l

n° 1 SB 21+ collector n° 1 150 litres termosiphon n° 1 packaging with frame components and hydraulic connection kit

n° 1 SB 21+ collector n° 1 200 litres termosiphon n° 1 packaging with frame components and hydraulic connection kit

n° 2 SB 21+ collectors n° 1 300 litres termosiphon n° 1 packaging with frame for flat/pitched roof mounting components and hydraulic connection kit

List of components for the different kinds of installation 26

2 24

14 13

1 7 5

6 4

8 22

Flat roof STS 150/200 STS 300

Pitched roof STS 150/200 STS 300

1 Collector SB 21+

2 Tank

3 Right U profile 30x40x30

4 Left U profile 30x40x30

5 U profile 35x70x35

6 Side tie rod

7 Back X tie rod (pre-mounted)

8 Lower rail

9 Right support rail

10 Left support rail

11 U profile 35x70x35

12 Tank corner fixing

13 Hexagonal-head screw

14 Nut M10 DIN 934

15 Toothed washer Ø 10

16 Square-head screw M8x30

17 Nut M10 DIN 934

18 Toothed washer Ø 8,4

19 Anchorage screw

20 Fischer cap Ø 10

21 Compression joint Ø 22

22 Reduction bend Ø 22 x Ø 15

23 Reduction bend Ø 22 x 1/2 ‘’

24 Double compression joint Ø 22

25 DHW safety valve 10 bar (B41)

26 Primary circuit safety valve 2,5 bar (4000)

27 Flow pipe

28 Return pipe

29 Frontal aesthetic plate

30 Frame anchorage plate

31 Lower anchorage plate

2 63

Accessories Other hydraulic accessories Tee manual air vent accessory kit

Straight manual air vent accessory

720252801.

720252701. N° of elements of the kit

a B C D E

:A B C D E

Clip Manual air vent Tee piece for air vent G3/4 Washer Manual air vent

Other accessories Code

* delivered in pakage of 5 litres

Temperature sensor for solar controller

LNC 710000040 •

Flow meter

LNC 710000050 •

Anti freeze gycol - price per litre (for close examination see pag. )*

LSC 710000010 •

Thermostatic mixing valve

LNC 710000100 •

Solar installation air vent

LNC 710000110 •

Solar installation loading pump (for close examination see pag.)

LNC 710000240 •

Insulated stainless steel pipes split-combi DN 16 lenght 15m

LNC 710000080 •

Insulated stainless steel pipes split-combi DN 20 lenght 15m

LNC 710000090 •

Solar expansion vessel 18 lt

LNC 710000120 •

Solar expansion vessel 24 lt

LNC 710000130 •

Solar expansion vessel 35 lt

LNC 710000140 •

Solar expansion vessel 50 lt

LNC 710000150 •

Installation kit for expansion vessel

LNC 710000221 •

Electric resistence for 150 l thermosiphon

720420401 •

Electric resistence for 200 l thermosiphon

720420601 •

Electric resistence for 300 l thermosiphon

720420801 •

Supplementary 2,0 kW electric resistance for forced draft installations

LNC 710000230 •

2 kW electric resistence kit for UBSS 260 SC

LNC 710000250 •

Diverting valve for solar systems

LNC710000190 •

Diverting valve actuator

LNC710000200 •

Solar Info Tech Accessories: close examination Anti freeze gycol - 1 litre LSC710000010 Anti freeze gycol thermal conductivity

ECOGEl P% (p/p)

Temperature 째C

20%

40%

60%

80%

100%

Thermal conductivity com/sec/cm2/째C 0

0.00139

0.00117

0.00100

0.00083

0.00068

0.00054

142

119

100

145

121

100

148

123

101

0.00151

0.00125

0.00101

0.00080

0.00064

0.00050

154

127

101

157

129

102

160

131

102

0.00163

0.00133

0.00102

0.00078

0.00060

0.00045

165

135

102

100

169

137

103

110

172

139

103

120

175

141

104

Gycol anti freeze specifications % volume

Melting point (째C)

Boiling point (째C)

-8

101

-14

103

-22

103

-33

104

-48

106

100

-60

160

Solar installation loading pump (LNC 710000240 .) Specifications: Wide aperture (210 mm): easier to be filled and to clean

Junctions: easy connection to the system Joint for van fixing: safer to transport Flexible transparent pipe with metal core: easy to see air bubbles, the pipe doesn’t flatten

50 litres tank: bigger capacity for the mixing and for foam storage

Easy to transport: it weights only 17 kg

Cylindric tank with reinforcements: it doesn’t deform when filled with hot liquid content

Pneumatic wheels: ideal for yards and stairs Up to 80°C resistance: ideal for hot water circulation without covering the panels, in the summer

Checks valve: the liquid doesn’t come back to the system

Technical Data

Weight

17 Kg

Dimensions

1000 x 450 x 500 mm

Maximum flow

40 l/min

Maximum working pressure

4 bar

Tank capacity

50 l

Air junction

3/4"

Input

230 V ~ 50Hz

Current

Power

250 W

Sound pressure

70 dBA

Protection

IP55

Solar Info Tech References Building Commercial building location Cegled â&#x20AC;&#x201C; Hungary levels 3 levels of 220 m2 each

System information Boiler: luna HT Residential 1.450 and biomass (pellet) boiler Tank: DHW double coil UB 300 DC storage tank low temperature zones: 3 High temperature zone: 1 Fan coil heating circuit : 1 Solar system: Solar collectors: 18 SB 25 collectors Installation: flat roof installation with 45Â° slope, vertical mounting, facing South Solar tank: 2 single coil UBPU 1500 storage tanks Solar circulation group: 2 solar circulation group, one of them with Comfort controller

Building Hotel and residence location Pietra ligure (SV) – Italy Accommodations 60 rooms and about 129 beds

Old system information Floor standing boiler: 240 kW (open flue gas boiler) Plate heat exchanger: 250 kW

New solar system information N° of solar systems: 2 Solar system 1: Solar collectors: 18 SB 25 solar collectors (2,5 mq/each) Installation: flat roof installation with 30° slope, horizontal mounting Solar tank: 3 enamelled single coil solar tanks, 1000 litres capacity/each Solar circulation group: 2 multipled solar circulation groups, with Comfort regulation Solar pipes diameter: Øe. 35 mm, Øi. 32 mm stainless steel main pipes

Solar system 2: Solar collectors: 14 SB 25 solar collectors (2,5 mq/each) Installation: flat roof installation with 30° slope, horizontal mounting Solar tank: 2 double coil solar tanks, 1000 litres capacity/each Solar circulation group: 2 multipled solar circulation groups, with Comfort regulation Solar pipes diameter: Øe. 28 mm, Øi. 25 mm stainless steel main pipes 68

Solar Info Tech

Installation examples

luna Platinum integration “Basic” installation example Luna Platinum + solar collectors

Solar collectors

To users Luna Platinum

High temperature

Cold water inlet

Accessories

Code

Description

Quantity

KHG714076810 .

HT hot water temperature sensor

n° 2

KHG714062810 .

Room thermostat (RT) (n° depends from the zones)

n° 1

LSC710000063 .

Neutral circulation group

n° 1

LNC710000040 .

Solar collectors sensor for clip-in or external programmable module THINK

n° 1

710487301 .

Outdoor sensor

n° 1 69

luna Platinum integration “Comfort” installation example Luna Platinum + UB 200 SC + solar valve kit + solar collectors

Luna Platinum

Configurable clip-in module

To users Solar valve Solar collectors

Solar tank

Low temperature zones

Cold water inlet

Accessories

Code

Description

Quantity

710234002 .

Interface kit for Platinum remote control THINK - 3 leds

n° 1

710034502 .

Programmable clip-in module THINK

n° 1

KHG714076810 .

HT hot water temperature sensor

n° 1

710106102 .

Modulating room themostat THINK

n° 1

KHG714123111 .

Solar valve kit

n° 1

LSC710000063 .

Neutral circulation group

n° 1

LNC710000040 .

Solar collectors sensor for clip-in or external programmable module THINK

n° 1

710487301 .

Outdoor sensor

n° 1

Solar Info Tech

Installation examples Example with Luna Platinum coupled with an air to water heat pump for heating and cooling, heat boxes recording, DHW production with solar system. Energy production with photovoltaic collectors.

inverter

Photovoltaic collectors

Energy feed-in

Energy produced

Energy comsumption

To the energy supplier

F N

KWh

From the energy supplier

Solar collectors

To users

To users Boiler System Manager All'impianto di Riscaldamento

Heat pump

Cold water inlet

Accessories

Code

Description

Quantity

710503703 .

Programmable external module THINK

n° 2

KHG714078511 .

Motor for the mixing valve

n° 2

KHG714078310 .

Mixing valve G1’’

n° 2

KHG714078910 .

Heating flow/return sensor

n° 2

KHG714076810 .

HT hot water temperature sensor

n° 3

LSC710000063 .

Neutral circulation group

n° 1

LNC710000040 .

Solar collectors sensor for clip-in or external programmable module THINK

n° 1

710487301 .

Outdoor sensor

n° 1

KHG71406281 .

Room thermostat (RT)

n° 2

Example with Luna Duo-Tec coupled with a 200 litres single coil tank for solar integration, with: solar regulator, solar expansion vessel, solar circulating group (UB 200 Solar).

Luna Duo-tec Outdoor sensor

Solar collectors

High temperature zone

UB 200 solar

Cold water inlet

Accessories

Code

Description

Quantity

KHG714062810 .

Room thermostat (RT)*

n째 1

710487301 .

Outdoor sensor

n째 1

(*) optional: thermostat/programmable thermostat

Example with a standard efficiency Luna3 system (existing) coupled with a UB 200 Solar and solar collectors.

Existing outdoor sensor Luna3 existing boiler

Solar collectors

UB 200 solar

Cold water inlet

High temperature zone

Solar Info Tech

Installation examples Examples with Luna3 Comfort Solar (standard/IN models) coupled with solar collectors.

Outdoor sensor

DHW PRIMARY CIRCUIT (solar)

Low temperature circuit 1

DHW

PRIMARY CIRCUIT (solar)

Low temperature circuit 2 High temperature circuit

C D E F

Low temperature circuit 1

Cold water inlet Cold water inlet

Accessories

Code

Description

Quantity

KHG714062810 .

Room thermostat (RT)*

n째 2

KHG714072811 .

Outdoor sensor

n째 1

(*) optional: thermostat/programmable thermostat

Outdoor sensor

DHW PRIMARY CIRCUIT (solar)

Low temperature circuit 1 Low temperature circuit 2 C D E F

High temperature circuit

Cold water inlet

Solar Wizard (soon available) Baxi tool to design your solar systems Solar Wizard creates an accounting simulation to optimize Baxi solar systems. The tool makes a complete analysis of the components with graphics accounting and it also permits to print a detailed estimate based on the designed solution. Solar Wizard is part of the online free tools called â&#x20AC;&#x201C; Baxi Wizard â&#x20AC;&#x201C; on the Baxi.it web site.

all the software on the same board With the same interface it is possible to enter the different accounting and configuration tools

Support menu always available During the configuration it is always available a support menu, to create a new configuration, ask support or open an existing project

all the projects just a click away Every registered user has an own space, where to find, modify and print the existing projects with all the related information

Solar Info Tech

Solar Wizard (soon available) Baxi tool to design your solar systems Installation examples always updated A type of installation is chosen to begin the project. The list of examples is constantly updated with the new products and installation schemes

More details before confirming Inside every type of installation it is possible to choose a specific example, the pictures can be enlarged with the mouse to easily see the details

Easy navigation Navigation arrows allow to confirm a choice and to move to next step (green arrow) or to go back to previous screens to modify the choices (yellow arrow)

Configuration icons During the navigation, it is possible to see where the present screen is, thanks to the easy interface. It is also possible to â&#x20AC;&#x153;jumpâ&#x20AC;? from one screen to another, using this icons

Climatic data for each site More than 700 mapped location, with precise climatic data coming from the nearest weather stations. More than 19.000 data, including relative humidity, lowest and highest temperature and other specific data for the selected location

Solar Wizard (soon available) Baxi tool to design your solar systems

Choosing solar panels The configurator helps choosing the best Baxi solar collectors solution or it is possible to chose a specific panel after have seen the technical data

Type of installation To have a complete and detailed configuration and estimate, it is necessary to choose the installation characteristics, including the type of roof (flat/ pitched) and the orientation of the pitch

Specifications of the system Giving the dimensions of the cylinder installation site, an alert appears whenever the dimensions of the tank are bigger than the installation site

assisted choice of the solar tank As for the collectors, the choice can be made by the tool or it is possible to choose a specific solar tank

Solar Info Tech

Solar Wizard (soon available) Baxi tool to design your solar systems DHW specifications The user can choose the building (according to UNI/TS) and the DHW consumption DHW consumption Solar Wizard, according to UNI/TS 11300-2, accounts the need of thermal energy for DHW production DHW subsets The tool accounts the total efficiency and energy but it also gives information about the efficiency and the thermal energy of subsets of DHW supply, distribution, storage and production

Detailed analysis of the needs on a monthly base For a further examination, it is possible to analyze the efficiency of the solar system, also on a monthly base

Energy over need A graph shows energy over needs, which can be correct by adjusting the data selections (ex. numbers of collectors, solar tank, â&#x20AC;Ś)

a complete estimate At the end of the configuration, it is possible to choose optional accessories and then to print the complete estimate

Notes

Solar Wizard (soon available) Baxi tool to design your solar systems

Choosing solar panels The configurator helps choosing the best Baxi solar collectors solution or it is possible to chose a specific panel after have seen the technical data

Specifications of the system Giving the dimensions of the cylinder installation site, an alert appears whenever the dimensions of the tank are bigger than the installation site

assisted choice of the solar tank As for the collectors, the choice can be made by the tool or it is possible to choose a specific solar tank

76 78

Solar Info Tech

Detailed analysis of the needs on a monthly base For a further examination, it is possible to analyze the efficiency of the solar system, also on a monthly base

Energy over need A graph shows energy over needs, which can be correct by adjusting the data selections (ex. numbers of collectors, solar tank, â&#x20AC;Ś)

a complete estimate At the end of the configuration, it is possible to choose optional accessories and then to print the complete estimate

Quality Environment Safety

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. 03-12 (E)