ICI Caldaie SOLAR C 25, SOLAR SYSTEM C 25, SOLAR SYSTEM C 31, SOLAR C 31 Instruction Manual

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WALL HUNG BOILERS

INSTRUCTIONS MANUAL

To be used for

INSTALLATION, USE AND MAINTENANCE

CONDENSING BOILERS

SOLAR C 25 SOLAR C 31

SOLAR SYSTEM C 25 SOLAR SYSTEM C 31

IMPORTANT

This installation must be carried out by an authorised Corgi Engineer

GENERAL RULES

This instruction book is an integral and essential part of our product and it is delivered together with our boiler. Read carefully the information about safety, installation and maintenance that are shown in it. The boiler installation is to be carried out by qualified Corgi Registered Engineer. IMPORTANT: this boiler is designed to warm water at a lower temperature than 100 deg C at an atmospheric pressure; it has to be installed to a heating system and to a water supply system suitable for its capacity and duty. This boiler to be used for the purposed it was designed for . Every other kind of use, has to be considered improper and dangerous. The manufacter is not to be considered responsible for possible damages caused by any, improper and unreasonable use.-Isolate the boiler from its supply before doing any kind of service operation. Do not obstruct boiler aspiration or dissipation grills. Isolate the boiler if there is any damage or malfunctioning. All repairs must be carried out by an authorized service operation centre, such as British gas or CORGI registered personnel , using only original approved spare parts. In order to achieve the highest boiler efficiency and for its correct functioning it is important to follow the manufacturers instructions. If you decide not to use the boiler for any considerable time, it is advisable to isolate any gas and water connections. Don't wet the boiler with water or with other liquid substances. Don't put other items on the surface of the heater. Before starting every kind of service operation which forces the burner dismantling or the opening of inspection holes you have to isolate electrical and gas supply. If there are any chimney service operations turn the boiler off. After having finished the operation you should call your qualified personnel and check the status of safety valves. Do not clean the heater with inflammable substances. Do leave or store inflammable substances near the boiler.(paper, paints ,thinners etc.) The electrical safety of the heater is assured only if it is correctly earthed. Your engineer must control the state of the wiring; if there are any problems the manufacturer is not responsible for damages caused by a non correct earth installation. Ensure your electrical supply capacity is adequate for the boiler with regards to the elecrical supply to the boiler you cannot use adapters, multiple plugs and extensions. The use of electrical items implies the careful observation of fundamental rules such as: 1 Do not touch the boiler with wet hands; 2 Do not tear electrical cables;3 Do not allow children or to use the heater. All maintenance operations and replacement parts must be done using only original spare parts.

Use only flue gas ducts and electric accessories that have been supplied by Manufacturer

Make sure that the drain is properly connected. The manufacturer is not responsible of any food contamination due to incorrect installation of safety valves and condensate drain. No pipes have should be used as earth . Please ensure: 1 The correct functioning of the gas inlet system; 2 The correct gas capacity is the one required by the boiler power; 3 That the type of gas used is that the heater was designed for. 4 That the gas supply pressure is within the required values of the heater. 5 That the gas inlet system is correct and has all the required safety features which are required by law. If You smell gas Do not turn electrical switches on. Open all windows and doors, extinguish any naked flames, close all gas cocks and call your gas supply company.

Note: due to the high efficiency of the boilers a plume of steam will form at the flue outlet during the operation.

It is UK law that the fitting of the appliance and any controls to the appliance may only be carried out by a competent engineer in accordance with the Gas Safety (installation and use) regulations 1998. Flue systems must not be modified in any way other than as described in the fitting instructions. Any misuse or unauthorized modifications to the appliance, flue or associated components and systems could invalidate the warranty. The manufacturer accepts no responsibility arising from any such actions, excluding statutory rights. All gas appliances must be installed by competent qualified engineer, CORGI-certified personnel in accordance with the following recommendations:

Gas Safety Standards (Installation and Use) Regulations 1994 (as amended). All relevant Building Regulations issued by the Department of the Environment. Building Standards (Scotland)(Consolidation) Regulations issued by the Scottish Development Department. Model and local Water Undertaking Byelaws. Current IEE Wiring Regulations and IEE Earthing Regulations. Health and Safety Document No. 635 “Electricity Standards in the Workplace 1989”

The Installation should also be in accordance with the following British Standard Codes of Practice:

BS 5540:1:1990 Flues BS 5540:2:1989 Air supply BS 5449: 1990 Forced circulation of hot water systems BS 5546: 1990 Installation of hot water supplies for domestic purposes BS 6700: 1987 Design, installation, testing and maintenance of services supplying water BS 6798:1987 Installation of gas fired hot water boilers BS 6891:1989 Gas installation

BS 7593:1992 Code of practice for treatment of water in heating systems Failure to install appliances correctly could lead to prosecution. It is in your interest and that of safety to ensure that the law is complied with. Important the Benchmark logbook must be completed by the installer and must include his CORGI registration number to confirm that the boiler has been installed, commissioned, and serviced in accordance with the manufacture’s instructions. Important ; The completed benchmark Log Book will be required in the event of any request for warranty work and may also be

required by the local Building control Inspector.

1 TECHNICAL DATA ....................................................................3

1.1 DIMENSIONS ................................................................................................................... 3

1.2 HYDRAULIC SCHEME ..................................................................................................... 3

1.3 AVAILABLE HEAD............................................................................................................ 3

1.4 GENERAL LAYOUT OF THE MAIN COMPONENTS....................................................... 4

1.5 TECHNICAL DATA ........................................................................................................... 5

1.6 ELECTRICAL SCHEME.................................................................................................... 6

1.7 TIMER ELECTRICAL SCHEME ....................................................................................... 7

1.8 “S” PLANT......................................................................................................................... 8

1.9 “Y” PLANT......................................................................................................................... 9

2 INSTALLATION INSTRUCTIONS............................................10

2.1 DIFFERENT VENTING OPTIONS.................................................................................. 10

2.1.1 DIFFERENT VENTING OPTIONS - FLUE VENTING ...........................................................10

2.1.2 LENGTH OF FLUE GAS DUCT: SOLAR/SOLAR SYSTEM C 25.........................................11

2.1.3 LENGTH OF FLUE GAS DUCT: SOLAR/SOLAR SYSTEM C 31.........................................12

2.2 BOILER POSITIONING .................................................................................................. 13

2.3 HYDRAULIC CONNECTIONS........................................................................................ 14

2.4 ELECTRIC CONNECTIONS........................................................................................... 14

2.5 COMMISSIONING .......................................................................................................... 15

2.6 SETTING OF CONTROL PANEL ................................................................................... 16

2.7 ADJUSTMENT INSTRUCTIONS: MAXIMUM AND MINIMUM HEAT OUTPUT............. 17

2.8 SLOW IGNITION AND HEAT OUTPUT ADJUSTMENT................................................. 17

2.9 DIFFERENT GASES....................................................................................................... 18

2.10 INJECTORS PRESSURE TABLE: SOLAR COMBI /SOLAR SYSTEM C 25 ................. 18

2.11 INJECTORS PRESSURE TABLE: SOLAR COMBI / SOLAR SYSTEM C 31 ................ 19

2.12 TECHNICAL FAULT FINDING For Corgi Registered Engineers only............................. 20

3 MAINTENANCE INSTRUCTIONS ...........................................25

3.1 INTRODUCTION............................................................................................................. 25

3.2 PUMP SETTING ............................................................................................................. 25

4 USER INSTRUCTIONS ............................................................ 26

4.1 CONTROL PANEL.......................................................................................................... 26

4.2 IGNITION ........................................................................................................................27

4.3 SUMMER MODE ............................................................................................................ 27

4.4 WINTER MODE .............................................................................................................. 27

4.5 BREAK DOWN SIGNALS ............................................................................................... 27

4.6 TEMPORARILY TURNING BOILER OFF....................................................................... 27

4.7 LONG TERM SHUT DOWN............................................................................................ 27

4.8 SUGGESTIONS.............................................................................................................. 27

4.9 FAULT FINDING ............................................................................................................. 28

5 EXPLODED VIEWS AND PARTS LISTS ................................29

1 TECHNICAL DATA

1.1 DIMENSIONS

L H P A B C D

(mm) (mm) (mm) (mm) (mm) (mm) (mm)

400 720 300 200 200 182 118

1.2 HYDRAULIC SCHEME

1 - gas valve 2 - burner 3 - primary exchanger 4 - pump 5 - bypass supply 6 – pressure gauge 7 - safety valve (set to 3 bar)

8 – filter*

9 – Supply charge (not for U.K. market) 10 - expansion vessel

11 - valve in 3-way*

12 - valve of discharging air

13 - DHW exchanger*

14 - condensing exchanger 15 - condensing trap 16 - Fan

* For combination boilers only

1.3 AVAILABLE HEAD

0,5

1,5

2,5

3,5

4,5

5,5

6,5

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700

Flowrate (l/h)

Available head H (m)

without by-pass

with by -pass

1.4 GENERAL LAYOUT OF THE MAIN COMPONENTS

1. Air Pressure Switch

2. Discharge air valve

3. Primary exchanger limit thermostat (105°C)

4. Flue gas ducts limit thermostat (105°C)

5. Aluminium condensing exchanger

Copper primary exchanger

6. Copper primary exchanger

7. Ingnition + Flame Detection

8. Burner

9. Pump

10. Gas valve

11. Safety valve (3 bar)

12. Condensing trap

13. Supply charge (not for U.K. market)

14. Discharge valve

15. D.H.W. exchanger*

16. C.H. sensor

17. Hydraulic three ways valve*

18. Sealed chamber

19. Fan

20. Condensate sensor

* For combination boilers only

15 17

14 9

142

1.5 TECHNICAL DATA

Size SOLAR COMBI

SOLAR SYSTEM

C 25

SOLAR COMBI

SOLAR SYSTEM

C 31

Nominal Heat Input to net calorific value (Hi) referred (80 °C /60 °C) kW 25 31 Minimum Heat Input to net calorific value (Hi) referred (80 °C /60 °C) kW 10,5 12,4 Nominal Heat Output (80 °C/60 °C) kW 24,4 30,2 Nominal Heat Output Condensing (50 °C/30 °C) kW 26,9 33,3 Minimum Heat Output (80 °C/60 °C) kW 10,1 11,9 Minimum Heat Output Condensing (50 °C/30 °C) kW 10,7 12,6

Efficiency Rendimento (80 °C/60 °C) % 97,6 97,5 Partial Load efficiency (30 % of Pn) % 108,7 107,9

Nominal Heat Input (Pn) gas flowrate Natural gas G20 (2E+) m3/h 2,643 3,278 Natural gas G25 (2ELL) m3/h 3,0745 3,812 LPG G30 (3+) kg/h 1,970 2,443 LPG G31 (3P) kg/h 1,941 2,406 Net gas pressure Natural gas G20 (2E+) mbar 20/25 20/25 Natural gas G25 (2ELL) mbar 20 20 GPL G30 (3+) mbar 29 29 LPG G31 (3P) mbar 37 37 Pn flue gas temperature (80 °C / 60 °C) °C 70 74 Pn flue gas temperature (50 °C / 30 °C) °C 47 51 CO2 (G20) % 8 8 NOx (according par 6.2.2 of EN 483) mg/kWh 190 (classe 2) 190 (classe 2)

Losses of heat to the chimney with burner ignited

% 2,8 3,0

Losses of heat to the cheminey with burner not ignited

% 0,2 0,1

Losses of heat to the cover (∆T = 50 °C)

% 0,5 0,5 Flue gas flow rate Nm3/h 42,09 53,03 CENTRAL HEATING

C.H. Minimum Set point

°C 35 35

C.H. Maximum Set point

°C 90 90

Volume of water in the boiler

l 1,2 1,2

Volume of water of the expansion vessel

l 7,5 7,5

Pressure of the expansion vessel

bar 0,7 0,7

Least pressure in the primary circuit

bar 0,4 0,4

Maximum pressure in the primary circuit

bar 3 3

Maximum content of heating water

l 150 150

Available head at 1000 l/h of flow rate

mbar 230 330 DOMESTICAL HOT WATER (for combination boilers only) Minimum set point °C 30 30 Maximum set point °C 60 60 Production continuous warm water (T = 25 °C) l/min 14 17,3 Production continuous warm water (T = 35 °C) l/min 10 12,4 Water Volume(T = 30 °C during the first 10 minutes) l 116,6 144,3 Minimum flow l/min 2,5 2,5 Maximum pressure bar 8 8 Minimum pressure bar 0,5 0,5 Voltage l ---- ---Frequency V/Hz 230/50 230/50 Absorbed electric power W 150 150 CONNECTION Flow connection C.H. Inch 3/4" 3/4" Flow connection D.H.W.* Inch 1/2" 1/2" Gas connection Inch 3/4" 3/4" Height mm 720 720 Depth mm 300 300 Width mm 400 400 LENGHT OF FLUE GAS DUCTS Ø 60 x 100 mm coaxial m 4 4 Ø 80 mm doubled m 30 30 Ø 60 mm doubled m ---- ---Weight kg 43 43 Degree of protection IP X4D X4D CE certification

0068 0068

1.6 ELECTRICAL SCHEME

N.A.

ROSSO

Transducer of pressure of heating system

DHW micro switch

C.H. sensor

Modulator of gas valve

GAS valve

FAN

CIRCULATOR

AIR PRESSOSTAT

GROUND

PHASE

NEUTRAL

CONDENSATE SENSOR

Ambient thermostat (option)

Primary exchanger limit thermostat (105°C)

Flue gas ducts limit thermostat (105°C)

Fuse: 2 x 3,15 AF 5x20 250 V

1.7 TIMER ELECTRICAL SCHEME (only for U.K. market)

FUSE: 2 x 3,15 AF 5x20 - 250 V

THERMOSTAT

230 V AC 50 Hz

TIMER GRASSLIN

FM/1

STUZH

AMBIENT

1.8 “S” PLANT

Automatic bypass

D.H.W. Thermostat

Room Thermostat

T°C I-01

T°C I-02

Heating Circuit

D.H.W. Tank

D.H.W.

Valve

H.C.

Valve

Boiler

1.9 “Y” PLANT

Automatic bypass

3 Way Valve

D.H.W. Thermostat

Room Thermostat

T°C I-01

T°C I-02

Heating Circuit

D.H.W. Tank

Boiler

2 INSTALLATION INSTRUCTIONS

2.1 DIFFERENT VENTING OPTIONS

Sealed chamber heaters do not require particular characteristic for set-up and installation; combustion air is drawn from the outside of the property, therefore the boiler does not need air ventilation from the room where the boiler is sited. We suggest you to follow all the present regulations. Take particular attention to discharge and aspiration unions in order to avoid combustion product leakage. Use only original spare parts.

The boiler has to be connected to coaxial flue or twin pipe flue that must discharge to the outside. Without them the boiler must not be allowed to work.

For condensing boilers you must use only original accessories. The manufacturer have also a polypropylene version of flue gas ducts with resistance to the temperature of 120°C in continuous regime. The MANUFACTURER is not responsible for any variation to the recommendations contained in this manual and especially those related to the flue.

2.1.1 DIFFERENT VENTING OPTIONS - FLUE VENTING

1. Coaxial vent through the roof

2. Coaxial through the wall

3. Split type venting between two chimney

4. Split type, discharge into a chimney, fresh air from outdoor wall

5. Coaxial, connection with coaxial chimney

CAUTION! - Follow local regulations concerning draught terminals location from windows and doors.

Note: due to the high efficiency of these boilers a plume of water vapour will form at the flue terminal during the operation.

2.1.2 LENGTH OF FLUE GAS DUCT: SOLAR/SOLAR SYSTEM C 25

SPLIT FLUE Ø 80 mm

N.B.: The flue and aspiration duct length has not to exceed 30 m.

For flue lengths of less than 2.0M you must fit a Ø 42 mm restrictor in the vertical adaptor connection

For every added 90° elbow the maximum allowable length is to be reduced by 2 m.

The pipes of aspiration and unloading must be climbed on upward with inclination of 3° so that the condensing product flows into the boiler rather than to the outside.

COAXIAL FLUE Ø 60 x 100 mm

N.B.: The allowed length of coaxial flue ducts is by a minimum 0,5 meters to a maximum of 4 meters.

For flue lengths of less than 2.0M you must fit a Ø 42 mm restrictor in the vertical adaptor connection

The intake and flue discharge pipes should be fitted with a slight tilt outwards and downwards (Figure on right).

The pipes of aspiration and unloading must be climbed on upward with inclination of 3° so that the condensing product flows into the boiler rather than to the outside.

MAX 15 m

MAX 15 m +

105 120

400

235

165

STRAIGHT ON

400

235 165

MAX 15 m

MAX 4 m

100

MAX 4 m

143

171

314

2.1.3 LENGTH OF FLUE GAS DUCT: SOLAR/SOLAR SYSTEM C 31

SPLIT FLUE Ø 80 mm

N.B.: The flue and aspiration duct length has not to exceed 30 m.

For flue lengths of less than 2.0M you must fit a Ø 42 mm restrictor in the vertical adaptor connection

For every added 90° elbow the maximum permitted length must be reduced by 2 m.

The pipes of aspiration and unloading must be climbed on upward with inclination of 3° so that the condensing product flows into the boiler rather than to the outside.

COAXIAL FLUE Ø 60 x 100 mm

N.B.: The allowed length of coaxial flue ducts is by a minimum 0,5 meters to a maximum of 4 meters.

For flue lengths of less than 2.0M you must fit a Ø 42 mm restrictor in the vertical adaptor connection

The intake and flue discharge pipes should be fitted with a slight tilt outwards and downwards. Fig on right

The pipes of aspiration and unloading must be climbed on upward with inclination of 3° so that the condensing product flows into the boiler rather than to the outside.

MAX 15 m

MAX 15 m +

105 120

235 165

STRAIGHT ON

MAX 15 m

235 165

MAX 4 m

100

2.2 BOILER POSITIONING

Follow these instructions:

• Having considered the boiler dimensions, fix the dimensions template to the wall in the desired position.

• Drill the holes in the desired position for the boiler hanging bracket, and flue duct as required.

• Position all terminal pipes such as cold and hot water pipes, system inlet and return pipes, gas pipes and electrical

cables as indicated by the template.

• Hang the boiler onto the hanging bracket once positioning of the bracket is confirmed.

• For the hydraulic connections screw iron-copper joints together with previously set connections. Cut and position

pipes according to the distance between boiler joints and iron-copper connections that are placed on the wall;

• tighten them firmly and confirm that all joints are sound.

• N.B.: please, remember to remove any plastic coverings.

* C and F: for combination boilers only

2.3 HYDRAULIC CONNECTIONS

Domestic Hot Water (for combination boilers only)

The incoming water pressure must not exceed 6 bar with a minimum of 1 bar. In case of higher pressures a pressure reducing valve (PRV) must be installed. Supply water flow rate influences the cleaning frequency of the heat exchangers. It is the installers responsibility to add adequate water treatment depending upon water

characteristics.

System loading

Slowly open the supply charge valve to reach about 1 bar system pressure, which can be viewed through the pressure gauge situated on the facia panel. Close the supply charge valve once reached. Bleed the radiators using proper manual valves. When the system is cold set the system pressure to 1 bar. In case the installation of the boiler is where the temperature environment can go down below 0°C, we recommends you fill the heating system with antifreeze solution. We advise you to use solutions of glycole already diluted to avoid the risk of uncontrolled dilutions.

Suggestions and advice to avoid system vibrations and noises.

• avoid the use of pipes with reduced diameters;

• avoid the use of bends with reduced radius;

• It is recommended to hot flush the system, order to eliminate all the impurities coming from pipes and

radiators - particularly oil and fat substances - which might damage the circulating pump.

UNDERFLOOR HEATING The minimum flow temperature is 35°C but in order to avoid frequent on-offs of the boiler we suggest to set the temperature at at least 45°C: with floor heating we suggest to use a mixing valve to control the temperature

SOLAR PANELS For the use of solar panels on the system, checks, evaluating the following parameters must be carried out: plant layout, kind of fluid and setting parameters.

CONDENSATE DRAIN Connection to the condensate trap spigot which has an Ø of 21,3 mm connection is by (1/2”) plastic pipe to the outlet of the syphon, this requires, an O-Ring (Ø inner 15,80 mm e Ø thick 2,40 mm) must be fitted.

2.4 ELECTRIC CONNECTIONS

The boiler is set to work with a 230V / 50Hz single-phase supply. There is also an external cable for the room thermostat. Connect the thermostat after having removed the

jumper on the AC cable terminal. (ATTENTION: the AC connection works by net tension; therefore, you should use plastic models or if they are made with metal casing you should connect them to an efficient earth system).

The boiler connection has to be protected by means of a 2 pole isolator and a proper fuse (1A). The appliance has to be connected to an efficient earth system. Follow present local regulations about safety. Remark: Note the live and neutral position: an inversion of these two positions could result in a failure of the ignition circuit. Remark: Manufacturer declines any responsibility for damages to persons, animals or things caused by the lack of a proper earth system connection and local regulation attention.

ETHILIC GLYCOLE (%) FREEZING TEMPERATURE (°C)

6 0,00 10 -3,90 15 -6,10 20 -8,90 25 -11,70 30 -15,60 40 -23,40 50 -35,50

2.5 COMMISSIONING

The boiler must be commissioned according

UK law regarding all gas appliances.

Make sure the gas pipe is not too long in length causing lack of pressure. See minimum & maximum gas pressure requirements.

Before commissioning check that the characteristics of the distributed gas are equal, to those on the data label of the boiler

Insert a tap/valve between the gas supply and the boiler. Open doors and windows and avoid the presence of naked flames. Remove all air from the system. Before lighting the boiler check there are no gas leaks by smell and observing the gas meter so it does not

move over 15 minutes.

Verify that all joints are sealed in the gas line by using a soap solution or equivalent product to check the leaks. CAUTION!: when using LPG it may be necessary to install a reducing valve

GAS VALVE

1 – Burner pressure Test-Point

2 – Mains gas pressure Test-Point

3 –Vent 4 – Modulating Coil

Terminations 5 – Modulating Coil

A–Minimum pressure adjustment screw (Red)

B–Maximum pressure adjustment screw (10mm Nut)

C –Protective cover

To set-up the gas pressures to the burner, to insert the probes of the manometer into the available o pressure test points on the gas valve (see fig.).

N.B. check that the pressure and the flow of the gas are enough to guarantee the correct operation of the boiler.

2.6 SETTING OF CONTROL PANEL

There are 4 normal modes of operation:

A) Normal :

Boiler Operation

, - flow temperature, gas modulation and flame detection.

Alarm function is in section 4.9

B) To View the Boiler’s Set Point Parameters:

By pushing P1+P2 for 3 seconds. You can view in the following order:

- Heating supply temperature

- Domestic hot water temperature* ---- For Combination Boilers only

- Boiler system water pressure

- Output during ignition.

- Maximum Heat Output

C) Setting the Boiler Parameters

By pressing P1+P2 for 6 seconds. You can view alternatively the figures regarding the following parameter’s, and their current value adjustment available are as follows

P1 = power to ignition (0 – 99% of range available) P2 = power to heating (0 – 99% of range available) P3 = anti cycling timer to max 10 minutes (0 – 99% 0t the 10 minute range) P4 = not available P5 = off = nat gas / on = LPG P6 = not available

Pressing the keys P3 and P4 it is possible to view in sequence the parameters which can be changed.

By using the keys P5 and P6 = it is possible to modify their value.

By Pressing P3+P4 you can exit without saving any changes.

By Pressing P2 for 5 seconds you exit the menu and you save the changes.

The available parameters are:

D) History Log Alarm.

By pressing P1+P2 for 9 seconds. You can view alternatively the number of alarms By pressing P3+P4 you exit off the function. By pressing P2 for 5 seconds you can delete the historical log alarm.

2.7 ADJUSTMENT INSTRUCTIONS: MAXIMUM AND MINIMUM HEAT OUTPUT

The boilers are pre set in the factory for the gas type showing on the data plate. Check the min/max pressure setting. This is important due to the gas supply pressure varying by country.

To Check and correct the gas pressure proceed in the following way.

 Insert a manometer for the gas at the point " 1";  Turn on the boiler and open the hot tap fully ;

MAXIMUM HEAT OUTPUT ADJUSTMENT

1. Turn on the boiler and open the hot tap fully;

2. Remove the hood of protection" C" ( see fig. section 2.5);

3. Adjust the maximum pressure acting on the nut " B" with the aid of a 10 mm spanner ; rotating

clockwise the pressure increases, rotating counter clockwise the pressure decreases;

MINIMUM HEAT OUTPUT ADJUSTMENT

1. Set the boiler on “Winter” position (see section 4.1);

2. Ensure any room thermostat is calling for heat;

3. Set heating regulation to maximum;

4. Set heating power to maximum (see section 4.1).

5. Rotate the red screw "Á." To reach the minimum pressure as per the table in section 2.10 (clockwise it

increases, counter clockwise it decreases);

6. Replace the hood of protection" C."

7. All the values to set-up the heating power for the boiler are in section 2.10

8. Open the hot tap fully

to verify the pressure of the maximum heat.

Remember always to tight the junctions after the use and to check the seal.

2.8 SLOW IGNITION AND HEAT OUTPUT ADJUSTMENT

SLOW IGNITION ADJUSTMENT

The boiler is delivered already set to the following values: NATURAL GAS = 30 mm H

LPG = 80 mm H

Follow these instructions if you have to change these values:

• open the domestic water to its maximum level and turn the boiler off;

• turn the boiler on;

• check the pressure of the gas to the burner during the cycle of ignition (the pressure remains low until you

can see the flame).

• Press for 6 sec P1 and P2 and see c) “Parameters setting” (See section 2.6)

Set P2 as you need.

• To reset the value of slow ignition you need to turn off the boiler, to again act on the parameters and to remake ignition verifying the attainment value of desired pressure.

ATTENTION: the slow ignition time for its adjustment is 5 seconds after which the nozzle pressure will increase or decrease according to the need. If a further change is needed repeat this operation by turning the boiler on and off.

OUTPUT HEAT ADJUSTMENT

The maximum heating output has to be adjusted according to system needs. Gas pressure values are shown at section 2.10 in the table “INJECTORS PRESSURE TABLE”. For the adjustment of the burner gas pressure follow these indications:

• Set the boiler to “Winter” mode;

• Ensure any room thermostat is calling for heat;

• Press for 6 sec P1 and P2 and see c) “Parameters setting” (See section 2.6)

Set P1 as you need. N.B

.: Wait about 10 seconds to allow the pressure stabilisation after the slow ignition.

2.9 DIFFERENT GASES

The boiler can operate on Natural Gas or LPG. To switch from one gas type to the other follow the following instructions:

Transformation from Natural Gas to LPG gas

• replace burner injectors

• change the JP1 jumper position and set it to “LPG” position (see the electrical scheme);

• adjust MIN/MAX pressure levels keeping in mind the above instructions;

• as far as the injectors diameters and the burner gas pressure are concerned, see the above table;

• after this operation seal the valve regulator.

LPG to Natural Gas

• replace burner injectors;

• change the JP1 jumper position and set it to “NATURAL GAS” position (see the electrical scheme);

• adjust MIN/MAX pressure levels keeping in mind the above shown instructions;

• as far as the injector diameters and the burner gas pressure are concerned, see the above table;

after this operation seal the valve regulator

2.10 INJECTORS PRESSURE TABLE: SOLAR COMBI /SOLAR SYSTEM C 25

Injectors diameters Gas diaph. Burner pressure

P.C.I

Inlet

pressure

Quantity Ø Ø

Min. Heat

= 10,5

Qnom. =

25 KW

TYPE OF GAS

MJ/m3 mbar n° mm mm mbar mbar

NAT.GAS G20 (2H+) 34,02 20 13 1,20 5,5 1,5 11,3

NAT.GAS G25 (2H+) 29,25 25 13 1,20 5,5 2,4 14,3 NAT.GAS G25 (2LL) 29,25 20 13 1,30 ------- 1,3 12,7 NAT.GAS G25.1 (2HS3B/P) 29,21 25 13 1,30 ------- 1,8 13,3 BUTANE G30 116,09 28/30 13 0,72 ------- 5 27 PROPANE G31 88 37 13 0,72 ------- 6,2 34,6

2.10.1 Gas pressure - Heat diagram

0 5 10 15 20 25 30 35

Burner pressure (mbar)

NOMINAL HEAT (KW)

NAT.GAS. H (G20)

NAT.GAS L (G25)

NAT.GAS. LL (G25)

NAT.GAS G25.1 (II2HS2B/P)

BUTANE (G30)

PROPANE (G31)

2.11 INJECTORS PRESSURE TABLE: SOLAR COMBI / SOLAR SYSTEM C 31

Injectors diameters Diafr. Gas* Gas diapg

P.C.I

Inlet

pressure

Quantity Ø Ø

Min. Heat

= 12,4

Qnom. =

31 KW

TYPE OF GAS

MJ/m3 mbar n° mm mm mbar mbar NAT.GAS G20 (2H+) 34,02 20 13 1,30 6,5 2 13,2 NAT.GAS G25 (2H+) 29,25 25 13 1,30 6,5 2,8 16,2 NAT.GAS G25 (2LL) 29,25 20 13 1,45 ------- 1,4 10,8 NAT.GAS G25.1 (2HS3B/P) 29,21 25 13 1,45 ------- 1,5 12,2 BUTANE G30 116,09 28/30 13 0,8 ------- 4,3 27 PROPANE G31 88 37 13 0,8 ------- 6,1 34,9

* Only for France and Belgium

2.11.1 Gas pressure - Heat diagram

0 5 10 15 20 25 30 35 40

Burner pressure (mbar)

NOMUNAL HEAT (KW)

NAT.GAS H (G20)

NAT.GAS L (G25)

NAT.GAS LL (G25)

NAT.GAS G25.1 (II2HS2B/P) BUTANE (G30)

PROPANE (G31)

2.12 TECHNICAL FAULT FINDING For Corgi Registered Engineers only

1 THE BURNER FLAME DOES NOT IGNITE

POSSIBLE CAUSES CHECK - REMEDY

A - The water temperature is higher than that of

the hot water adjustment thermostat; B - The gas cock is closed; C - Boiler Lockout; D - Lack of the ignition electrode sparkle

E - Lack of flame;

F - Air in the gas pipe system;

G - The safety thermostat has operated;

H - There is low system pressure.

A - Increase the hot water adjustment

thermostat to a higher setting; B - Open gas cock; C - Reset it; D - Please check:

High limit thermostat working

Air pressure switch

Ignition electrodes

Ignition electrodes cable

Ignition flame device E - Please check:

Ignition electrodes

Ignition electrodes cable

Gas presence

Absence of air on the gas circuit

Please check power supply to gas valve

Gas valve opening F - Ensure that the gas lines have been fully

purged of all air G - Please check:

Circulation pump for blockage or necessary

adjustment H - Recharge the System using the main filling tap.

2 VIOLENT IGNITION

POSSIBLE CAUSES CHECK - REMEDY

A - Flame instability;

B - Insufficient gas flow;

C - Incorrectly placed ignition electrodes.

A - Please check:

Absence of air on the gas circuit B - Please check:

Incoming gas pressure at the gas meter

The pipe size of gas supply to the boiler

Dirt in gas line C - The distance between ignition electrode and

burner must be 4 mm.

3 SMELL GAS

POSSIBLE CAUSES CHECK - REMEDY

A - Gas system leakage (of both the internal and

external pipe system).

A - Close the main gas cock and check the pipe

system

4 BOILER CONDENSATION

POSSIBLE CAUSES CHECK - REMEDY

A - The boiler temperature is too low.

A - Adjust the boiler thermostat to an higher

temperature.

5 COLD RADIATORS IN WINTER

POSSIBLE CAUSES CHECK - REMEDY

A - The selector is to “SUMMER” position;

B - The room thermostat is not working or it has

been adjusted to a too low temperature;

C - Closed radiator system;

D - Malfunctioning three way valve.

A - Reset it to “WINTER” position;

B - Turn the room thermostat on and set an

higher temperature; C - Open system or radiators valves;

D - Please check:

The DHW micro switch must be open when

DHW is not required

If necessary replace:

The switch

The internal diaphragm of the valve

The internal spring of the valve

6 DOMESTIC WARM WATER LITTLE PRODUCTION* POSSIBLE CAUSES CHECK - REMEDY

A - The domestic thermostat temperature is too low;

B - Too much hot water being drawn off;

C - The burner gas adjustment is not

A - Increase in the domestic thermostat temperature;

B - Partially close the hot water regulator valve;

C - Please set / check the minimum – maximum gas

pressures (see page 15)

7 FLAME RECTIFICATION PROBLEMS POSSIBLE CAUSES CHECK - REMEDY

A - The condensate sensor causes the boiler to stop A - Please check that the condensate trap is

not blocked or frozen and that all

condensate is freely escaping to the

selected drain as any build up of

condensate will send the sensor which is

attached to the condensate exchanger to

earth

* For combination boilers only

THE ABOVE CHECK/ FAULT FINDING SHOULD ONLY BE PERFORMED BY A CORGI REGISTERED ENGINEER.

IN THE EVENT OF A REQUEST FOR AN IN WARRANTY SERVICE CALL TO RECTIFY A MANUFACTURERING FAULT, THIS WILL REQUIRE IN THE FIRST INSTANCE, RELEVENT INFORMATION WHICH IS CONTAINED IN YOUR BENCHMARK LOGBOOK, WHICH WILL HAVE BEEN COMPLETED BY YOUR REGISTERED INSTALLER UPON INSTALLATION

START

FLAME IGNITION

IGNITION SEQUENCE - ENDS

CLOSING GAS VALVE

SPARK END

GAS VALVE OPENING

AND SPARK STARTING

LOCK OUT- SAFETY TIME

START SEQUENCE

GAS VALVE OFF

YES

> 110 °C

< 110 °C

SAFETY THERMOSTAT

YES

PLEASE CHECK:

- HIGH LIMIT THERMOSTAT WORKING

- THERMOSTAT OPERATION CAUSES

GAS VALVE ON

PLEASE CHEC

- FAN

- GAS VALVE AND ITS ELECTRICAL AND PNEUMATIC CONNECTIONS

FLAME IGNITION

YES

PLEASE CHECK:

- GAS PRESENCE

- ABSENCE OF AIR ON THE GAS CIRCUIT IGNITION ELECRODES

- IGNITION FLAME DEVICE

WORKING

LOCK OUT

PLEASE CHEC

AIR PRESSURE SWITCH ELECTRICAL CONNECTIONS TO FAN FAN VENTURI & CONNECTION TUBES

THE ABOVE CHECK/ FAULT FINDING SHOULD ONLY BE PERFORMED BY A CORGI REGISTERED ENGINEER.

SUMMER

OFF

START

SELECTOR SWITCH

START SEQUENCE

PLEASE CHEC

- PRESSURE SWITCH OPERATION

- AIR CIRCULATION PRESENT

- CHECK FAN VENTURI FOR BLOCKAGE

- CHECK CONNECTION TUBES

- CHECK FLUE CONFIGURATION

CIRCULATOR STARTING

CENTRAL HEATING DEMAND

FROST THERMOSTAT

T> 5 °C

T > 5°C

ROOM THERMOSTAT

PLEASE CHECK START SEQUENCE PAGE

SUMMER / WINTER

CHANGE OVER SWITCH

PLEASE CHEC

- POSSIBLE CENTRAL HEATING PUMP LOCK OUT

- VOLTAGE PRESENCE AT C/H PUMP

AIR PRESSURE SWITCH

OPERATING

BURNER MODULATING

REACHING OF

SETTED TEMPERATURE

CIRCULATOR WORKING IN CONJUNCTION WITH

ROOM THERMOSTAT- OR BOILER DEMAND

THE ABOVE CHECK/ FAULT FINDING SHOULD ONLY BE PERFORMED BY A CORGI REGISTERED ENGINEER.

HEATING

OFF

START

SELECTOR SWITCH

START SEQUENCE

CIRCULATOR STARTING

DOMESTIC HOT WATER DEMAND

POWER TO 3 WAY VALVE

DHW WORKING

REFER TO START SEQUENCE PAGE

PLEASE CHEC

- POSSIBLE CIRCULATOR LOCK OUT

- VOLTAGE PRESENCE AT CIRCULATOR

BURNER MODULATING

DWH DEMAND END

DIVERTER VALVE CLOSED

MICROSWITCH CLOSED

GAS VALVE CLOSED

CIRCULATOR STOP

YES

IR PRESSURE SWITCH

PLEASE CHEC

FAN VENTURI – AND AIR TUBES FOR BLOCKAGE AIR PRESSURE UNIT FUNCTION

MICROSWITCH ACTIVATING

ON - 3 WAY VALVE

3 MAINTENANCE INSTRUCTIONS

3.1 INTRODUCTION

All maintenance operations have to be carried out by Corgi Registered Engineer. MAINTENANCE operations must be carried out at least once a year and according to UK Building regulations. Prior to winter it is advisable to make sure the boiler is working correctly. This must be done by a Corgi

Registered Engineer to ensure the correct operation of the boiler.

Annual Maintenance Check List:

• verify the exchanger is clean and clear;

• verify the burner is clean and clear;

• verify the hydraulic system pressure;

• verify the correct operation of the expansion vessel is working;

• verify the correct functioning of adjustment and safety thermostats;

• verify the cleaning and integrity of sensor and ignition electrodes;

• ensure the pump operate correctly;

• ensure there are no water leaks and no flue leaks;

• check and adjust gas burner pressure;

• check and adjust the combustion output;

• check the emission levels of CO, CO

and NOX;

• in the event that the boiler needs a spare part, only an original spare part, as supplied by the Manufacturer. should be used

The Manufacturer denies any liability concerning any damage caused by the installation of a non original spare part. ATTENTION:

this boiler has a safety thermostat linked to the flue which starts to work when there is any combustion product coming back. This safety feature must never to be linked out. If combustion products come back, they can cause severe intoxications with even death risks.

ATTENTION:

after any boiler service regarding the gas pipe system and flue system it is absolutely essential to ensure that joints are securely sealed and that there are no gas or flue leaks.

3.2 PUMP SETTING

When the boiler is new or after a long standstill period it is not unusual for the circulator to lock. This is easily rectified as follows:

• unscrew and remove the pump cap;

• insert the screwdriver and turn it to set the pump;

replace the cap.

4 USER INSTRUCTIONS

4.1 CONTROL PANEL

Thermometer:

Temperature of the Central Heating Circuit can be seen via the thermometer.

Manometer:

The system water

pressure can be seen. It

Must not be less than

1 Bar and must not

exceed 3 Bar. Always

see the pressure when

the system is cold.

Central Heating temperature is adjusted When this symbol is showing

Domestic hot water temperature is adjusted When this symbol is showing

Summer Winter Reset

Domestic Hot Water *. Domestic Hot Water* and

Central Heating.

* For combination boilers only

4.2 IGNITION

Open the manual gas supply valve, located outside of the boiler. Set to the SUMMER or WINTER position: the boiler should ignite automatically. If the boiler does not ignite you will see a failure in the display.

4.3 SUMMER MODE

For Domestic Hot Water only.

Set MENU to SUMMER position. Set the domestic water temperature adjustment to the desired setting. The domestic hot water production is activated.

4.4 WINTER MODE

For heat and domestic hot water.

Set MENU to WINTER position. Set the heating temperature adjustment to the desired setting. Room thermostat will keep the desired value.

4.5 BREAK DOWN SIGNALS

CODE DESCRIPTION

LOCKOUT due to not ignition/condensate sensor

Failure of heating system pressure

Failure of heating sensor

LOCKOUT due to high temperature/ exceeding of flue gas temperature

Air pressure failure

No water circulation

4.6 TEMPORARILY TURNING BOILER OFF

You can achieve it by means of:

- the room thermostat ;

- the MENU on the instrument panel;

4.7 LONG TERM SHUT DOWN

If the boiler is to remain off for a long period of time, close the gas cock to the boiler. Turn of the flow and return isolating valves on the boiler ,and drain down the boiler in order to protect it from freezing up. Before re starting up the boiler re-connect all pipework and open the necessary isolating valves to the boiler, also manually turn the rotating part of the circulator pump in case it has locked/sized.

4.8 SUGGESTIONS

Once a year the boiler should be cleaned and checked to make sure that all components are working properly. Do not adjust the gas valve, this is to be done only by a Corgi registered engineer. If there is a lockout, turn knob to reset position. If the problem happens often, call a Corgi registered engineer.

The condensing section of this boiler must not be modified or closed.

After a long period of inactivity verify the presence of water in the condensing trap after about 10 minutes of the boiler starting up the condensate water should then start to discharge. If this doesn't happen, please call a Corgi registered engineer.

4.9 FAULT FINDING

1 THE BURNER FLAME DOES NOT IGNITE

POSSIBLE CAUSES CHECK - REMEDY

A - The water temperature is higher than that of

the hot water adjustment thermostat; B - The gas cock is closed; C - Boiler Lockout ; D - Lack of flame E - Lack of the ignition electrode sparkle; F - Air in the pipe system; G - The safety thermostat has operated; H - There is low system pressure.

A - Increase the hot water adjustment

thermostat to a higher setting; B - Open gas cock; C - Reset it; D - Please contact your Corgi reg. installer E - Please contact your Corgi reg. installer F - Repeat the ignition procedure G - Please contact your Corgi reg. installer H - Recharge the System using the main filling tap.

2 VIOLENT IGNITION

POSSIBLE CAUSES CHECK - REMEDY

A - Flame instability; B - Insufficient gas flow; C - Incorrectly placed ignition electrodes.

A - Please contact your Corgi reg. installer B - Please contact your Corgi reg. installer C - Please contact your Corgi reg. installer

3 SMELL OF GAS

POSSIBLE CAUSES CHECK - REMEDY

A - Gas system leakage (of both the internal and

external pipe system).

A - Close the main gas cock and cal your

corgi registered installer

4 BOILER CONDENSATION

POSSIBLE CAUSES CHECK - REMEDY

A - The boiler temperature is too low.

A - Adjust the boiler thermostat to an higher

temperature.

5 COLD RADIATORS IN WINTER

POSSIBLE CAUSES CHECK - REMEDY

A - The selector is to “SUMMER” position; B - The room thermostat is not working or it has

been adjusted to a too low temperature; C - Closed radiator system; D - Malfunctioning three way valve

A - Bring it to “WINTER” position; B - Turn the room thermostat on and set an

higher temperature; C - Open system or radiators valves; D - Please contact your Corgi reg. installer

6 DOMESTIC HOT WATER TEMPERATURE INSUFFICIENT * POSSIBLE CAUSES CHECK - REMEDY

A - The domestic thermostat temperature is too low; B - Too much hot water being drawn off; C - The burner gas adjustment is not

A - Increase in the domestic thermostat temperature; B - Partially close the hot water regulator valve; C - Please contact your Corgi reg. installer

* For combination boilers only

NOTE TO END USERS

Request’s for an in warranty service call will require you to provide information contained within the

BENCHMARK LOG BOOK .This must have been completed by your CORGI

REGISTERED installer upon installation, and left with the boiler for safe keeping.

5 EXPLODED VIEWS AND PARTS LISTS

TAV 1

LIST TAV. 1

POS.

CODE

DESCRIPTION

1 ACPIA00P CASING SUPPORT SIDE L/R 2 ACPSC00P CASING SUPPORT BACK PANEL 3 ACLSG0P2 SUPPORT LOWER OUTLET PIPES 4 10020090 ALUMINIUM RIVET ø3x6 5 ACCCOP1S COMBUSTION CHAMBER COMPLETE 6 ACCCC1P2 COVER FRONT COMBUSTION CHAMBER 7 ACLSC00P PLATE SUPPORT CONTROL PANEL 8 ACLSS00P PLATE SUPPORT SYPHONE

9 ACCVS00P HOOD COMBUSTION CHAMBER 10 ACLFV00P PLATE FAN MOUNTING 11 ACPDX00P MOUNTING PLATE RIGHT 12 ACPSX01P MOUNTING PLATE LEFT 13 ACLAC00P COMBUSTION CHAMBER FRONT MOUNTING PLATE LEFT 14 ACPAS25P PLATE TOP SEALED CHAMBER (SOLAR C25)

14A ACPAS32P PLATE TOP SEALED CHAMBER (SOLAR C31)

15 ACCOP7P2 COVER TOP SEALED CHAMBER 16 ACGSI03P GASKET WINDOW SILICON 50,5x41x2 17 ACVTS01P COMBUSTION CHAMBER WINDOW 18 ACFLG2P1 WINDOW FLANGE 19 ACPAI00P PLATE BOTTOM COMBUSTION CHAMBER 20 ACRAM1P1 CONNECTOR PIPE EQUALIZING GAS VALVE 21 10031051 NUT HEXAGONAL ZINC. M5 22 ACTSI02P TUBE SILICON ø 4x7 23 ACNEO01P SEAL NEOPRENE ADHESIVE 15x2 24 ACNEO02P SEAL NEOPRENE ADHESIVE 15x3 25 ACGRI00P PANEL BOTTOM

26 ACLMBCIR

BOILER CASING PAINTED (with hole for clock-programmer – only for U.K. market)

26 ACLMB0PR

BOILER CASING PAINTED

(without hole for clock-programmer – except for U.K. market) 27 ACVIT01P SCREW ST 4,2x9,5 28 10040655 SCREW ST 4,2x13

TAV 2

LIST TAV. 2

POS.

CODE

DESCRIPTION

1 ACBRUW6P BURNER NG 13 JET SIZE 1,20 (SOLAR C25) 1A ACBRUW10 BURNER LPG 13 JET SIZE 0,72 (SOLAR C25) 1B ACBRUW8P BURNER NG 13 JET SIZE 1,30 (SOLAR C31)

1C ACBRUW9P BURNER LPG 13 JET SIZE 0,80 (SOLAR C31)

2 ACGUG00P GASKET JET

3 ACUGE20P JET NG 1.20 (SOLAR C25)

3A ACUGE72P JET LPG 0.72 (SOLAR C25) 3B ACUGE30P JET NG 1,30 (SOLAR C31) 3C ACUGE80P JET LPG 0,80 (SOLAR C31)

4 18050045 GASKET 1/2"X2mm

5 ACTUB17P PIPE ø14mm GAS VALVE - BURNER

6 ACPSI03P SEAL SILICON ø8 x 28

7 50000820 GASKET 3/4" X2mm

8 ACVAL02P GAS VALVE "845 SIGMA"

9 ACVIT12P SCREW M4x6 10 ACELE03P ELECTRODE IGNITION & FLAME RECOGNITION 11 ACCAV4P1 CABLE ELECTRODE (WITH SUPPRESSOR RESISTOR) 12 ACCHI01P UPPER COVER REAR CONTROL PANEL 13 ACCHI90P LOWER COVER REAR CONTROL PANEL 14 ACSCH00P PC BOARD WITH DISPLAY 15 ACCRU00P CONTROL PANEL 16 ACPUL00P BUTTON CONTROL PANEL 17 ACFUS01P FUSE 2A 5x20 18 ACSFC00P CABLE SUPPORT 19 ACANE00P CONTROL PANEL RING 20 ACPRN00P CONTROL PANEL LAMP 21 ACSSC00P MANUAL PRESSURE GAUGE RETAINING BRACKET 22 ACTDS00P PRESSURE GAUGE 23 ACICC01P INSULATION FRONT & REAR 288x217x10 24 ACICC02P INSULATION ON SIDE 169x198x10 25 ACTER01P THERMOSTAT OVER HEAT KLIXON 105°C 26 ACORI09P O-RING R9 (10,5 x 2,7) EP 851 FOR CLIXON KLIXON 27 ACGSI01P FLEXIBLE COLLAR FAN OUTLET 28 ACPRS01P AIR PRESSURE SWITCH 29 10020500 TUBE SILICON ø5x9 30 ACVNT25P FAN (SOLAR C25)

30A ACVNT31P FAN (SOLAR C31)

31 ACSBR01P BURNER SUPPORT 32 ACDAE05P NUT HEXAGONAL M4 33 ACLPB00P REAR BURNER PLATE 34 ACPSI01P SEAL SILICON CONICAL ø14x21 35 ACVIT03P SCREW 3,5x6,4 36 ACVIT01P SCREW 4,2x9,5 37 ACVIT15P SCREW. 3,5x13 38 ACVIT00P SCREW 3x35 39 ACVIT93P SCREW. 3,5x13 40 ACVIT13P SCREW M3 x 6 UNI 7683 41 ACOTR00P CLOCK-PROGRAMMER (only for U.K. market)

TAV. 3

LIST TAV. 3

POS. CODE DESCRIPTION

1 ACSCA10P HEAT EXCHANGER 5 TUBES WATER/GAS

2 50000820 GASKET 3/4" X 2 mm

3 ACTUB11P PIPE CONNECTION 18 mm HE-CONDENSER

4 ACSCAC0P CONDENSER 4A ACNEO00P NEOPRENE STICK INSIDE CONDENSER 4B ACLIC31P INNER CONDENSER ALUMINIUM PLATE

5 ACORI13P O RING R13 (16,9 x 2,7) EP851

6 ACMOL10P SPRING RETAINING CONDENSER PIPE

7 ACTUB14P CONNECTING PIPE 18 mm CONDENSER TO “T” CONNECTOR

8 ACRAC4P1 "T" CONNECTOR MALE 3/4"-3/4" FEMALE 1/2"

9 ACVAL04P AUTOMATIC AIR VENT 1/2"

10 ACTUB10P CONNECTING PIPE 18 mm “T” CONNECTOR TO PUMP 11 18050140 GASKET 1" X 2 12 ACCIR06P PUMP m. 6 12H 13 ACFDR00P PRESSURE RELIEF/PUMP MANIFOLD 14 ACVAL00P PRESSURE AND RELIEF SAFET VALVE M-F 3 bar 1/2" 15 ACSUP10P BRASS PUMP SUPPORT 16 ACGIR00P UNION NUT 17 ACORI01P O RING 18x2 mm EP851 PRESSURE RELIEF 18 ACBYP00P BY – PASS VENT 19 ACMOL91P BY - PASS SPRING 20 ACVIT90P BRASS SCREW M3 BY - PASS 21 18050045 GASKET 1/2" x 2 mm 22 ACTUB13P BY PASS PIPE Ø 10 mm 23 50000465 GASKET 3/8" X. 2 mm 24 ACTUB12P PIPE Ø 18 mm HEAT EXCHANGER TO 3 WAYS VALVES 25 ACSON2P2 SENSORE + PIPE SECURING SPRING Ø 14 mm 26 ACVAL31P HYDRAULIC VALVE 27 ACSTM31P BRACKET 28 ACMIC1P1 MICROSWITCH – HYDRAULIC VALVE 29 10040401 SCREW 2.9 x 16 30 ACPIA1P1 SPRING/CLIP KL12 31 ACNIP01P BRASS NIPPLE 1/2" 32 ACAST01P DRAIN TAP" 33 ACORI02P O RING DRAIN TAP 106 37 ACBRI00P SPACING BLOCK RETURN 38 ACMOL00P CLIP/SPRING HYDRAULIC VALVE 39 ACORI31P O-RING R10 (12.1 x 2.7) EP851 40 ACROS00P WASHER 5.3 x 14 x 1 UNI 1739 41 ACVIT02P STAINLESS STEEL SOCKET HEAD SCREW M5 x 12 42 ACVIT91P SCREW 2.9 x 13 UNI 6955 43 ACVIT04P CROSS HEAD SCREW M4 x 10 UNI 7687 44 ACORI14P O-RING R14 (18.4 x 2.7) EP851 45 ACORI3P1 O-RING R15 EP851 PLATE HEAT EXCHANGER 46 ACSCA00P PLATE HEAT EXCHANGER 12 PLATES (SOLAR C25)

46A ACSCA149 PLATE HEAT EXCHANGER 12 PLATES (SOLAR C31)

47 ACBMA00P SPACING BLOCK FLOW 48 ACTUB93P PIPE Ø 18 mm. FLOW TO HEAT EXCHANGER 49 ACLFT00P PIPE FLANGE 50 ACORI11P O-RING R11 (13,6 x 2,7) EP851 51 ACTUB94P PIPE Ø 14 mm. FLOW DHW 52 ACCDA02P LOCK NUT 1/2" KEY. 24 53 ACVIT06P CROSS HEAD SCREW M6x10 UNI 7687 54 ACDAE06P NUT M6 UNI 5596 55 ACCDA01P LOCK NUT 3/4" KEY 30 56 ACTUB92P PIPE Ø 18 mm FLOW HEATING CIRCUIT 57 ACTUB29P CONNECTING PIPE Ø 18 mm. TO EXPANSION VESSEL 58 ACCDA03P LOCK NUT 3/8 KEY 23 59 ACVES00P EXPANSION VESSEL 7 LI TRES 60 ACSRC00P SYPHON CONDENSATE CONTAINER 61 ACTVT00P PVC CONDENSATE DRAIN TUBE Ø 16 mm X 22 62 ACTSS01P ALLUMINIUM CONDENSATE DRAIN PIPE 63 ACPSI02P CONICAL SEAL 14 x 38

DECLARATION OF CONFORMITY

The undersigned Emanuela Lucchini managing director of the ICI CALDAIE SPA. with registered office - Italy

declares that the boilers SOLAR C 25, SOLAR SYSTEM C 25 SOLAR C 31, SOLAR SYSTEM C 31

Manufactured by:

ICI CALDAIE SPA Via Giovanni Pascoli, 38, 37059 Campagnola di Zevio (Verona) - ITALIA

Are produced in conformity with the following European Directive:

90/396/CEE (Gas Appliance Directive) 92/42/CEE (Useful output Directive) 73/23/CEE (Low Voltage Directive) 89/336/CEE (Electromagnetic noise Directive) EN 677/2000 (Condensing Boiler Directive)

18000074 Ed. 2-11/05 2-St. 100 - 11/05

ICI CALDAIE LTD

UNIT 6

WEST LINK BUSINESS PARK

GUIDE STREET

SALFORD M50 1EW

Tel + 44(0) 161 743 9595

Fax + 44(0) 161 736 8675

salesuk@icicaldaie.com

www.icicaldaie.com

www.icicaldaie.co.uk

Pictures, descriptions and data are not binding on ICI CALDAIE Ltd.

ICI Caldaie SOLAR C 25, SOLAR SYSTEM C 25, SOLAR SYSTEM C 31, SOLAR C 31 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual