C&M 24 Maintenance And Service Manual Download Page 14

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Summary of Contents for 24

Page 1: ...80 60 maxi 8 24 kW 9 28 kW C H operating temperature 80 C max 80 C max C H circuit pressures Min operating 0 7 bar 0 7 bar C H circuit pressures Max operating 2 5 bar 2 5 barr Safety discharge 3 bar...

Page 2: ...F GVO PVF PVO Pump head available Minimum flow rate with all heating thermostatic valves closed bar 0 1 3 4 1 2 3 4 5 6 8 11 12 13 14 17 7 15 10 9 16 1 Steel chassis complete with expansion vessel not...

Page 3: ...e temperature when weather is cold press to reduce temperature when weather is fair During the temperature setting operation the display will flash If the room thermostat is calling for heat a dot wil...

Page 4: ...ether and shut off the gas The red lockout indicator led 35 will light Press the reset button to re light the burner The central heating flow temperature is controlled by the central heating control t...

Page 5: ...5 CENTORA GREEN FUNCTIONAL DIAGRAM 49 48 43 41 19 16 39 37 21 23 18 14 13 12 6 3 8 5 7 DIAGRAM ELECTRICAL WIRING...

Page 6: ...de from 01 to 99 Menu 2 Boiler conditions Indicates the conditions or the configurations of the boiler Section Digit 1 Digit 2 and 3 Software version of display PCB 0 10 to 99 Flue type 2 1 FF variabl...

Page 7: ...Pump post circulation duration 2 0 0 min From 0 to 5 minutes by step of 0 5 min 2 0 5 min 2 1 0 min 2 5 0 min Maximum Central Heating flow temperature 4 50 C 4 80 C CH anti cycling delay 8 0 0 min Fr...

Page 8: ...ng on the combustion rate to maximum output set in menu 4 sec tion 9 Central heating temperature is dis played in celsius degrees The 3 dots indicate that the combus tion rate control is ON at maximum...

Page 9: ...pump and burner change for section 9 Adjustment of CH heat output Press on key on Right side 9 times The display shows 906 which corresponds to the 18 kW which is the factory setting 9 section 9 06 18...

Page 10: ...and the different transformers in the sealed chamber Check combustion chamber insulation panels for damage Check the lighting and ionisation electrodes condition Clean the burner Never use metallic br...

Page 11: ...connection pipe onto the gas valve assembly Disconnect the connec tors from gas solenoids and fan Loosen the gas pipe nut Unscrew six nuts to release combustion chamber front panel and pull the assem...

Page 12: ...rse order 21 Spark generator Carry out step 1 and 2 as above Unplug the connector from the spark generator located on the right hand side of the main heat exchanger Loosen the two screws to remove the...

Page 13: ...minute if the error code 24 still display check the connection fan or replace the fan Yes Yes Yes Yes Yes No No No No Ok No Ok Replace heating thermistor Check heating thermistor Ok No No No No Yes Ye...

Page 14: ...displayed Replace control PCB Replace display PCB or control the connection between the 2 PCBs No No Yes No No Does the orange LED light No Yes Yes Yes Yes No 3 Replace display PCB or control the conn...

Page 15: ...10 T1 SW1 RL8 RL7A RL7 RL6 RL10 RL5A RL5 RL4A RL4 RL3A RL3 RL2A RL1A RL9 RL1 RAD1 R118 R114 R113 R111 R112 R110 R109 R108R107 R106 R9 R105 R101 R100 R99 R98 R97 R96 R8 R95 R94 R93 R92 R90 R88 R66 R65...

Page 16: ...in this document Manufacturer Chaffoteaux Maury France Commercial subsidiary MTS GB Limited MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone 01494 755600 Fax 01494 459775 Internet...

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