Beretta Ciao C.A.I Service Manual
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Beretta Ciao C.A.I Service Manual

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Service Manual
Ciao
C.A.I. - C.S.I.
caldaie
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Summary of Contents for Beretta Ciao C.A.I

  • Page 1 Service Manual Ciao C.A.I. - C.S.I. caldaie caldaie...
  • Page 2 caldaie...
  • Page 3 Children and unassisted disabled persons are forbidden The boiler must be installed by BERETTA Servicing to use the boiler. Centre. It is forbidden to work with devices or electrical The boiler must be used for the purpose for which the appliances such as switches, domestic appliances etc.
  • Page 4 GENERAL GUARANTEE CONDICTIONS The guarantee covers all the parts making up the products. It covers repairs and eventually replacing any of the parts that the supplier considers as having production defects, free of charge. A qualified authorized person should ignite the boiler the first time and then make out a certificate, signed for acceptance by the customer.
  • Page 5 1.5 IDENTIFICATION OF MAIN 1.5.2 Combustion chamber (POS. 2 APPENDIX - A page 77) COMPONENTS (APPENDIX - A page 77) The combustion chamber is located at the centre of the boiler and combustion occurs inside it. INDEX It consists of a steel plate structure adequately folded to be •...
  • Page 6 1.5.4 Igniter/control electrode 1.5.6 Flow limiter (POS. 4 APPENDIX - A page 77) The flow limiter is located at the inlet of sanitary water on the The electrode is located near the centre ramp of the burner (Sect. bi-thermal exchanger (Sect. 1.5.10 page 5) and has the work 1.5.1 page 3) and its job is to strike up the spark for ignition and of reducing the sanitary water level to a maximum value of to control the presence of the flame.
  • Page 7 1.5.9 Filling tap 1.5.11 Air box ( C.S.I. only) (POS. 8 APPENDIX - A page 77) (POS. 10 APPENDIX - A page 77) The filling tap is located at the sanitary inlet in the boiler and The air box is at the centre of the boiler and serves to isolate all has the job of connecting up the sanitary system with the heating components involved in the combustion process (burner, system for filling or topping up (Sect.
  • Page 8 1.5.13 NTC temperature control probes Combustion products will be discharged through slits on the (POS. 12 APPENDIX - A page 77) side of the hood if the flue should be obstructed, heating up the thermostat so that it starts working. NTC probes, Negative Temperature Control, are located at the exchanger outlet (Sect.
  • Page 9 that gas flowing to the burner is stopped very quickly under volume of primary fluid from heating effect, thanks to the work any faulty condition. done by a rubber membrane loaded with nitrogen beforehand The modulator is an integral part of the gas valve; the operator at 1 bar.
  • Page 10 DESCRIPTION OF OPERATING hot water requests. Both temperature selector and sensor provide for a resistance PRINCIPLES value to board integrated component, which, at the beginning (cold) controls burner maximum operation, until temperature 1.6.1 Hydraulic operating principle in DHW read on secondary by NTC sensor, compared by main board (Fig.
  • Page 11 1.6.4 Hydraulic operating principle in CH Gas solenoid valve opens the shutter proportionately to allow (Fig. 1.25) slow burner ignition, automatically adjusted by microprocessor. The boiler will then work at 75%capacity of When request is set on CH side, circulator (1) is fed, generating its maximum power for 15 min.;...
  • Page 12 1.6.6 CH water temperature adjustment The selection scale is divided into 3 sectors, to be set by potentiometer located on the left side, under the main knob (Fig. 1.26). Fig. 1.26 First Fig. 1.28 sector Timing can be cut off by moving jumper CM1 to Ti- mer OFF position as shown in figure Fig.
  • Page 13 FIRST IGNITION Protect the electrical devices underneath the circulator PRELIMINARY OPERATIONS from eventual water leaking out before loosening and removing the circulator plug. Before carrying out ignition and working inspection on the boiler it is essential to check that: - the pressure of the water circuit is between 1 bar and 1.5 - fuel and water taps supplying the system are open.
  • Page 14 2.2.2 DHW operation For DHW use, place function selector on « » SUMMER i.e. the boiler only produces domestic hot water (bathrooms, kitchen, etc.). Fig. 2.10 2.2.6 Controls during and after first start up After ignition check that the boiler effectively proceeds with Fig.
  • Page 15 GAS TRANSFORMATION TRASFORMATION FROM LPG TO MTN PROCEDURES - Remove jumper installed in control board, in position CM2 (Fig. 2.12). Shifting from a gas to another, belonging to another group, is easy also when the boiler is already installed. For the relevant TRASFORMATION FROM MTN TO LPG pressure values, refer to “GAS PRESSURE TABLE”...
  • Page 16 2.4.2.1 Maximun calibrations boiler. - Make sure the burner goes off by lowering the temperature Open a DHW cock at maximum capacity (let it open for at of the heating potentiometer. least two minutes before calibrating). - Turn the heating potentiometer to maximum. If possible, check maximum current available is delivered - Gas pressure will be reduced to minimum after the phase of to modulator by a millamperometre connected in series to a...
  • Page 17 COMBUSTION PARAMETER CONTROL The following operations must be done to check combustion: Fig. 2.20 - remove the probe from the analyser and and switch off analysis device (Fig. 2.20). Fig. 2.18 C.S.I. version: remove function selector; unscrew the screw (1 - Fig. 2.22) fixing the combustion turn the dial underneath upward to the spanner position (Fig.
  • Page 18 SWITCHING OFF BOILER TEMPORARY SWITCHING OFF 3.2 SWITCHING OFF FOR LONG PERIODS Turn the function selector (Fig. 3.1) to OFF for temporary IThe following operations should be done for CIAO boilers that absence (weekend, short journeys, etc.). are not going to be used for long periods: - Turn the function selector (Fig.
  • Page 19 MAINTENANCE REGULAR PROGRAMMED MAINTENANCE TABLE 1° 2° 3° 4° OPERATIONS TO BEPERFORMED AFTER THE: year year year year COMBUSTION ANALYSIS - Sect. 2.5 page 15 EXHAUST AND SUCTION DUCTS CHECK - TERMINALS CHECK - Sect. 7.5 e 7.6 page 73 ELECTRODE CHECK AND CLEANING - Table 4.4.3 pages 22-23 CHECK ON FILTER - Table 4.4.4 page 24, CAPACITY LIMITING DEVICE - Sect.

  • Page 20: Table Of Contents

    SAFETY NORMS Boiler installation and any other assistance and maintenance must be done by Qualified Personnel according to current codes of practice and legislation in Countries where the product is sold. Make sure the following operations have been carried out before any jobs to be done: - disconnect the boiler from the electricity supply;...

  • Page 21: Burner

    4.4.1 BURNER DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 1.1 Remove the case. See procedure pag. 25 1.2 Disconnect flame igniter-control electrode See procedure page 22 C.A.I.

  • Page 22: Circulator

    4.4.2 CIRCULATOR DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 2.1 Turn off heating system taps Heating system taps No tools – by hand 2.2 Turn off sanitary inlet tap Sanitary inlet tap No tools –...
  • Page 23 caldaie...
  • Page 24 4.4.3 a FLAME IGNITER-CONTROL ELECTRODE DISASSEMBLY (C.A.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 3.1 Remove the case. See procedure pag. 25 3.2 Disconnect flame igniter-control plug lead from control panel Safety hood and faston...
  • Page 25 4.4.3 b FLAME IGNITER-CONTROL ELECTRODE DISASSEMBLY (C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 3.1 Remove the case. See procedure pag. 25 3.2 Disconnect flame igniter-control electrode lead from control panel Safety hood + faston...

  • Page 26: Flowmeter

    4.4.4 FLOWMETER DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 4.1 Turn off sanitary inlet tap Sanitary H2o tap No tools – by hand 4.2 Empty sanitary system Sanitary H2o tap No tools –...

  • Page 27: Case

    4.4.5 CASE DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 5.1 Unscrew the screws (1) holding the control panel-case N. 2 screws Magnetic PH2 screwdriver 5.2 Turn the control panel forward to stop Front panel...

  • Page 28: Water Pressure Switch

    4.4.6 WATER PRESSURE SWITCH DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 6.1 Turn off heating system taps Heating system taps No tools –...

  • Page 29: Safety Pressure Switch (C.s.i. Only)

    4.4.7 SAFETY PRESSURE SWITCH DISASSEMBLY (C.S.I. only) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 7.1 Remove the case. See procedure pag. 25 7.2 Remove air box cover N.
  • Page 30 4.4.8 a BITHERMAL EXCHANGER ASSEMBLY (C.A.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 8.1 Turn off heating system taps Heating system taps No tools –...
  • Page 31 OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION 8.18 Insert the flow limiter into exchanger (H2O inlet) Flow limiter No tools – by hand 8.19 Fix heating NTC probe onto the thermostat NTC probe+aluminium sealing 13mm. wrench 8.20 Apply thermoconductive paste onto base of thermostat Limit thermostat...
  • Page 32 4.4.8 b BITHERMAL EXCHANGER ASSEMBLY (C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 8.1 Turn off heating system taps Heating system taps No tools –...
  • Page 33 OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION 8.20 Assemble the side sealings onto exchanger bit N. 2 side sealings No tools – by hand 8.21 Insert the flow limiter into exchanger (H2O inlet) Flow limiter No tools – by hand 8.22 Fix heating NTC probe onto the thermostat NTC probe+aluminium sealing...

  • Page 34: Electronic Control Panel

    4.4.9 ELECTRONIC CONTROL PANEL DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 9.1 Slide off control dial Control dial No tools – by hand 9.2 Remove the case.
  • Page 35 4.4.10 HEATING NTC PROBE DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 10.1 Turn off heating system taps Heating system taps No tools –...
  • Page 36 4.4.11 SANITARY NTC PROBE DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 11.1 Turn off sanitary H2O inlet tap Sanitary H2O tap No tools –...
  • Page 37 4.4.12 FUMES THERMOSTAT DISASSEMBLY (C.A.I. only) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 12.1 Remove the case. See procedure pag. 25 12.2 Remove safety hood Safety hood No tools –...

  • Page 38: Limit Thermostat

    4.4.13 LIMIT THERMOSTAT DIASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 13.1 Remove the case. See procedure pag. 25 13.2 Remove hood shaped at 90° from limit thermostat 90°...
  • Page 39 4.4.14 a NOZZLE DISASSEMBLY (C.A.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 14.1 Remove the case. See procedure pag. 25 14.2 Remove the electrode. See procedure pag.
  • Page 40 4.4.14 b NOZZLE DISASSEMBLY (C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 14.1 Remove the case. See procedure pag. 25 14.2 Remove the electrode. See procedure pag.

  • Page 41: By-Pass Valve

    4.4.15 BY-PASS VALVE DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 15.1 Turn off heating system taps Heating system taps No tools –...
  • Page 42 4.4.16 a GAS VALVE DISASSEMBLY (C.A.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 16.1 Remove the case. See procedure pag. 25 16.2 Disconnect supply connector from modulator...
  • Page 43 4.4.16 b GAS VALVE DISASSEMBLY (C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 16.1 Remove the case. See procedure pag. 25 16.2 Disconnect compensation tube from gas valve...
  • Page 44 4.4.17 SAFETY VALVE DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 17.1 Turn off heating system taps Heating system taps No tools –...

  • Page 45: Expansion Tank

    Unscrew screw (1) fastening gas valve supply connector 4.4.18 EXPANSION TANK DISASSEMBLY (C.A.I.-C.S.I. Version) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 18.1 Turn off heating system taps Heating system taps No tools –...

  • Page 46: Fan (C.s.i. Only)

    4.4.19 FAN DISASSEMBLY (C.S.I. only) OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR WITH OPERATION THE OPERATION • Disconnect the boiler from the electricity supply • Turn off the gas tap 19.1 Remove the case. See procedure pag. 25 19.2 Remove air box cover N.
  • Page 47 TROUBLE SHOOTING This section is a simple and effective guide for resolving the most common problems when the CIAO boiler is working at open chamber and forced draught. The cause of malfunction can be identified starting with the type of problem by using the SERVICING TABLE AND THE COMPONENTS pages 45 e 47 to be checked following procedures given in the TROUBLE SHOOTING paragraph pages 52 e 58.
  • Page 48 LED OFF LED CONTINUOUS LED FLASHING PROBLEM DETECTION TABLE FOR USER PROBLEM CAUSE REMEDY YELLOW OFF Flame control unit blocked or Check that gas tap is open limit and/or fumes thermostat See section 7.2 page 71 GREEN OFF working RED CONTINUOS Contact Servicing Centre if problem (for C.A.I.
  • Page 49 5.2 FAULTS WITHOUT INDICATOR LIGHTS INDEX • Circulator not working page • Condensation in boiler page • Electrode not sparking page • Burner not igniting on heating and/or sanitary page • Failure to reach maximum capacity on heating page • Failure to reach minimum capacity on heating page •...
  • Page 50 PROBLEM CAUSE REMEDY Failure to reach maximum capacity Temperature selected Check position of corresponding in CH potentiometer See section 2.2.5 page 12 Limescale or deposits in Clean exchanger exchanger See the table 4.4.8 page 28 C.A.I. - page 30 C.S.I. Irregular combustion Check pressure of gas supply and to burner...
  • Page 51 PROBLEM CAUSE REMEDY Delay in ignition with spluttering burner Inadequate gas pressure Check pressure of gas supply and to burner. See section 2.4 page 13 Efficiency of igniter-control Check position and working condition electrode See section 1.5.4 page 4 Irregular combustion Check pressure of gas supply and to burner See section 2.4 page 13...
  • Page 52 PROBLEM CAUSE REMEDY Dirty after short time Irregular combustion Check pressure of gas supply and to burner See section 2.4 page 13 Check working condition and diameter of nozzles See section 2.3 page 13 Check working condition of burner See section 2.3 page 13 Check working condition of gas valve Best to install a suitably sized filter on gas supply...
  • Page 53 INDICE • Failure to reach maximum heating capacity page • Failure to reach minimum heating capacity page • Smell of gas page • Water leaking from bottom of boiler page • Low production of sanitary water page PROBLEM DETECTION TABLE FOR USER PROBLEM CAUSE REMEDY...
  • Page 54 CHECK FAULTS SHOWN WITH INDICATOR LIGHTS INDEX • Error signal inspection: flame control system blocked page 53 • Error signal inspection: ACTIVE combustion ANALYSIS function page 54 • Error signal inspection: system without water page 55 • Electricity supply testing page 56 •...
  • Page 55 CIAO C.A.I. - C.S.I. Error signal inspection: LED GREEN LED YELLOW flame control system blocked LED RED GREEN LED OFF RED LED CONTINUOUS YELLOW LED OFF FLAME CONTROL SYSTEM BLOCKED OR INTERVENTION BY C.A.I. FUMES THERMOSTAT AND/OR LIMIT-THERMOSTAT IT STARTS UP...
  • Page 56 CIAO C.A.I. - C.S.I. Error signal inspection: LED GREEN LED YELLOW ACTIVE combustion ANALYSIS function LED RED GREEN LED OFF RED LED OFF YELLOW LED FLASHING CHECK COMBUSTION FUNCTION TURN THE ON/OFF SELECTOR TO OFF see section 2.5 page 15...
  • Page 57 CIAO C.A.I. - C.S.I. Error signal inspection: LED GREEN LED YELLOW system without water LED RED GREEN LED OFF/FLASHING/CONTINUOUS CHECK RED LED OFF AND/OR CONTINUOUS CONTINUITY ON WATER YELLOW LED CONTINUOUS PRESSURE SWITCH TERMINALS see section 1.5.7 page 4 SYSTEM WITHOUT...
  • Page 58 CIAO C.A.I. - C.S.I. Electricity supply testing LED GREEN LED YELLOW LED RED GREEN LED OFF RED LED OFF YELLOW LED OFF THERE ARE 230 VAC BETWEEN TERMINALS M2.1 AND M2.2 ELECTRICITY SUPPLY ON THE ELECTRONIC TESTING CONTROL BOARD See appendix - E...
  • Page 59 CIAO C.A.I. - C.S.I. Error signal inspection: LED GREEN LED YELLOW sanitary or heating proble failure LED RED GREEN LED OFF RED LED FLASHING YELLOW LED OFF SANITARY OR HEATING PROBE FAILURE BOILER WORKING ON HEATING CHECK CHECK HEATING AND...
  • Page 60 CHECK FAULTS WITHOUT INDICATOR LIGHTS INDEX • Starting up inspection page 59 • Circulator inspection page 60 • Safety pressure switch inspection (C.S.I.) page 61 • Fumes thermostat and limit thermostat inspection (C.A.I.) page 62 • Limit thermostat inspection (C.S.I.) page 63 •...
  • Page 61 CIAO C.A.I. - C.S.I. Starting up inspection LED GREEN LED YELLOW LED RED STARTING UP INSPECTION CHECK FOR GAS UPSTREAM FRO M GAS VALVE See section 2.4 page 13 ADJUST GAS PRESSURE AND EVENTUALLY CHECK FIL TER AT VALVE INLET (See section 2.4 page 13)
  • Page 62 CIAO C.A.I. - C.S.I. Circulator inspection LED GREEN LED YELLOW LED RED CIRCULATOR INSPECTION CIRCULATOR IS BLOCKED see section 2.1 page 11 FREE THE CIRCULATOR THROUGH THE SHAFT see section 2.1 page 11 THERE ARE 230 VAC BETWEEN TERMINALS M5.20 AND M5.21 ON THE ELECTRON...
  • Page 63 CIAO C.S.I. Safety pressure switch inspection LED GREEN LED YELLOW LED RED SAFETY PRESSURE SWITCH INSPECTION THERE ARE 0 VDC BETWEEN TERMINALS M6.24 AND M6.25 ON THE ELECTRONIC CONTROL BOARD see APPENDIX -E pages 81-82 CHECK AND/OR REPLACE START ING /CONTROL ELECTRODE see table 4.4.3 pages 22, 23 CONTINUITY ON FUMES PRESSURE...
  • Page 64 CIAO C.A.I. Fumes thermostat and limit thermostat inspection LED GREEN LED YELLOW LED RED FUMES THERMOSTAT- LIMIT THERMOSTAT INSPECTION THERE ARE 230 VAC BETWEEN TERMINALS M1.27 AND M1.28 ON THE ELECTRONIC CONTROL BOARD See appendix - E pages 81-82 REPLACE THE ELECTRONIC CONTROL BOARD See table 4.4.9 page 32...
  • Page 65 C.I.A.O. C.S.I. Limit thermostat inspection LED GREEN LED YELLOW LED RED LIMIT THERMOSTAT INSPECTION THERE ARE 230 VAC BETWEEN TERMINALS M1.27 AND M1.28 ON THE ELECTRONIC CONTROL BOARD See appendix - E pages 81-82 REPLACE THE ELECTR ONIC CONTROL BOARD See table 4.4.9 page 32 THERE ARE 230 VAC BETWEEN TERMINALS...
  • Page 66 CIAO C.S.I. Fan testing LED GREEN LED YELLOW LED RED FAN TESTING THERE THERE ARE 230 VAC BETWEEN ARE 230 VAC BETWEEN TERMINALS M6.22 AND M6.23 REPLACE FAN ON THE ELECTRONIC FAN TERMINALS see table 4.4.19 page 44 CONTROL BOARD see section 1.5.20 see APPENDIX - E page 7...
  • Page 67 • Working tests for boiler on heating (C.S.I.) page • Working tests for boiler on sanitary page Unless indicated otherwise, the values are valid for both the C.A.I. and the C.S.I. versions. CIAO C.A.I. Working tests for boiler on heating LED GREEN LED YELLOW LED RED START...
  • Page 68 CIAO C.S.I. Working tests for boiler on heating LED GREEN LED YELLOW LED RED START TURN THE ON/OFF SELECTOR TO SANITARY POSITION WITH SANITARY TEMPERATURE AT MAXIMUM See section 2.2 page 11 GREEN ON LED FLASHING page 68 DO TEST CLOSE TERMINALS M3.4 AND M3.6 ON THE ELECTRONIC CONTROL BOARD see APPENDIX - E pages 81-82...
  • Page 69 CIAO C.A.I. - C.S.I. Working tests for boiler on sanitary LED GREEN LED YELLOW LED RED START TURN THE ON/OFF SELECTOR TO SANITARY POSITION WITH SANITARY TEMPERATURE AT MAXIMUM See section 2.2 page 11 TURN ON HOT WATER TAP TO OVER 2.5 L/MIN FLOW CAPACITY...
  • Page 70 CIAO C.A.I. - C.S.I. Test A LED GREEN LED YELLOW LED RED TEST FLASHING RED LED CARRY OUT THE CORRESPONDING ERROR PROCEDURE ON page 57 GREEN LED OFF RED LED FLASHING YELLOW LED EITHER ON OR OFF CONTINUOUS RED LIGHT...
  • Page 71 CIAO C.A.I. Test B LED GREEN LED YELLOW LED RED TEST STARTING/ CONTROL ELECTRODE SPARKING IT STARTS UP CHECK STARTING UP page 59 BLOCKAGE AFTER STARTING ELECTRODE AND ELECTRONIC CONTROL BOARD CONNECTIONS CORRECT see APPENDIX - E ADJUST AND EVENTUALLY...
  • Page 72 CIAO C.S.I. Test B LED GREEN LED YELLOW LED RED TEST STARTING/ CONTROL ELECTRODE SPARKING SAFETY FLOWMETER INSPECTION page 61 IT STARTS UP STARTING UP INSPECTION page 59 BLOCKAGE AFTER STARTING UP ELECTRODE AND ELECTRONIC CONTROL BOARD CONNECTIONS CORRECT see APPENDIX - E pages 81-82 ADJUST AND EVENTUALLY REPLACE THEM...
  • Page 73 WATER CONNECTION 7. INSTALLATION Position of water connections are given in Fig. 7.1. Keep in mind that for correct installation: A - heating return 3/4" the boiler must not be put over a stove or other cooking B - heating delivery 3/4"...
  • Page 74 relevant cable holder on the frame (4 - Fig. 7.4) with its FILLING UP AND EMPTYING SYSTEM screw - close up the control panel and fix it to the case. Proceed as follows to fill up the system heating: - turn the function selector on the control panel to (fig.
  • Page 75 - pull the lever of the safety valve forward (fig. 7.6) until the If the problem persists, do not try to repair it yourself but call boiler is emptied; the Servicing Centre as soon as possible, which will deal with - empty the lowest parts of the system.
  • Page 76 outside and without which the appliance will not be able to Flange fumes is fitted under pressure. Take care in work. extracting it and use a screwdriver. Coaxial evacuation may be directed towards any part of the Figure 7.11 gives the boiler seen from above with the reference premises according to need, complying with procedures and dimensions for distance between centres of fumes evacuation lengths given in the table.
  • Page 77 Separated flues can be directed towards any part of the premises according to need. Figure 7.15 shows the flue for combustion products (7). The combustion air suction flue can be connected at the inlet (6 – fig. 7.15) – after removing the plug attached by 3 screws. EVENTUAL EVACUATION CONFIGURATION C12 Concentric wall evacuation.
  • Page 78 caldaie...
  • Page 79 APPENDIX PRINCIPAL COMPONENTS C.A.I. LEGENDA: BURNER COMBUSTION CHAMBER CIRCULATOR IGNITER/CONTROL ELECTRODE FLOWMETER WATER PRESSURE SWITCH SAFETY PRESSURE SWITCH (C.S.I. only) FILLING TAP BI-THERMAL EXCHANGER AIR BOX (C.S.I. only) ELECTRONIC CONTROL PANEL NTC TEMPERATURE CONTROL PROBLES FUMES THERMOSTAT (C.A.I. only) LIMIT THERMOSTAT GAS VALVE SAFETY VALVE EXPANSION TANK...
  • Page 80 OVERALL DIMENSIONS C.A.I C.S.I caldaie...
  • Page 81 TECHNICAL SPECIFICATION TABLES DESCRIPTION UNIT C.A.I. C.S.I. CH/DHW nominal heating capacity 26,7 kcal/h 22.950 22.350 CH/DHW nominal heating capacity 24,1 23,45 kcal/h 20.700 20.150 CH reduced heating capacity 10,4 11,2 kcal/h 8.950 9.650 CH reduced heating power kcal/h 7.500 8.000 DHW reduced heating capacity 10,4 kcal/h...
  • Page 82 GAS TRANSFORMATION TABLE Liquid gas Methane butane propane (G 20) (G 30) (G 31) C.A.I. PARAMETER Lower wobbe index (aT 15°C=1013 mbar) MJ/m 45,7 80,58 70,69 Supply nominal pressure mbar (mm H 20 (203,9) 30 (305,9) 37 (377,3) Supply minimum pressure mbar (mm H 13,5 (137,7) Main burner:...
  • Page 83 FUNCTIONAL WIRING DIAGRAM C.A.I. L-N POLARIZATION IS COMPULSORY. In case of phase-to-phase power, connect higher potential to L. A class II thermostat can only be used. Connect the room thermostat between TA terminals after removing the jumper. Use a room thermostat operating at 230 V. caldaie...
  • Page 84 FUNCTIONAL WIRING DIAGRAM C.S.I. L-N POLARIZATION IS COMPULSORY. In case of phase-to-phase power, connect higher potential to L. A class II thermostat can only be used. Connect the room thermostat between TA terminals after removing the jumper. Use a room thermostat operating at 230 V. caldaie...
  • Page 85 MULTILEAD DIAGRAM C.A.I. NOTE: L-N POLARIZATION IS COMPULSORY ON-OFF TIMER SELECTION JUMPER MTN-LPG SELECTION JUMPER E.A./R. IGNITION/DETECTION ELECTRODE GROUDING FASTON DHW FLOW METER FUSE1 2 A F FUSE IC21 CONTROL BOARD LED RED LED GREEN LED YELLOW MODULATOR OPERATOR P1SAN. DHW TEMPERATURE SELECTION POTENTIOMETER P2SELET.
  • Page 86 MULTILEAD DIAGRAM C.S.I. NOTE: L-N POLARIZATION IS COMPULSORY ON-OFF TIMER SELECTION JUMPER S.R. (NTC) PRIMARY TEMPERATURE SENSOR MTN-LPG SELECTION JUMPER S.S. (NTC) DHW TEMPERATURE SENSOR E.A./R. IGNITION/DETECTION ELECTRODE T.A. ROOM THERMOSTAT GROUDING FASTON T.L. LIMIT THERMOSTAT DHW FLOW METER TRANSFORMER FUSE1 2 A F FUSE IC21...
  • Page 87 ELECTRIC CONNECTIONS COLLEGAMENTO COLLEGAMENTO BASE ROOM THERMOSTAT BASIC CONNECTION TERMOSTATO AMBIENTE CONNECTION caldaie...
  • Page 88 LOCAL VALVE CONNECTION caldaie...
  • Page 89 caldaie...
  • Page 90 caldaie caldaie...

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