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Supplied By www.heating spares.co Tel. 0161 620 6677

SHORT SPARE

PARTS LIST

microCombi 23 MFFI

Содержание microCombi

Страница 1: ...Supplied By www heating spares co Tel 0161 620 6677 Servicing Instructions Type C Boilers G C N 47 116 16 LEAVE THESE INSTRUCTIONS WITH THE END USER Country of destination GB...

Страница 2: ...ALVE Setting the gas pressures Removing the spark generator Removing the gas valve 1 5 ACCESS TO THE WATER CIRCUIT Removing the pump pressure switch Removing the safety valve Removing the automatic ai...

Страница 3: ...ructions for removal inspection and replacement of the individual parts are given in the following pages 1 1 REPLACEMENT OF PARTS 1 2 TO GAIN GENERAL ACCESS All testing and maintenance operations on t...

Страница 4: ...ws C FIG 1 6 2 Lift the sealed chamber front cover from the locating pins FIG 1 7 FIG 1 6 C C FIG 1 7 1 2 3 Removing the side panels 1 Remove the four screws D for each side panel FIG 1 8 2 Pull the p...

Страница 5: ...FIG 1 14 3 Remove screw H FIG 1 15 4 Gently slide the electrode downward FIG 1 16 FIG 1 13 G FIG 1 14 1 3 2 Removing the burner and jets 1 Remove the screws F from the burner FIG 1 11 2 Remove the bu...

Страница 6: ...facing each other to give the correct spark gap c Check that the cables have been connected correctly d Check that the rubber gasket covers the cable electrode connection point completely FIG 1 15 FIG...

Страница 7: ...ounting plate FIG 1 26 1 3 6 Removing the fan 1 Disconnect the electrical connections K and silicone pipes L from their connection points FIG 1 20 2 Remove screws M on the top of the sealed chamber FI...

Страница 8: ...pply terminal from the modureg and adjust screw F Turn the screw clockwise to increase the pressure and coun ter clockwise to decrease the pressure displayed on the pressure gauge corresponding to the...

Страница 9: ...s G20 model 23 Regulating the heating power for butane gas G30 model 23 34 36 38 40 Regulating the heating power for propane gas G31 23 MFFI 2 78 20 11 0 2 0 1 16 2 02 Kg h 0 87 Kg h 27 5 mbar 6 2 mba...

Страница 10: ...to reset the flame failure reset a number of times during this operation 10 Remove the pipe from the pressure gauge and connect screw C to the pressure test point in order to seal off the gas 11 Care...

Страница 11: ...by using a spanner on the nut 3 Remove the pump pressure switch 1 5 ACCESS TO THE WATER CIRCUIT FIG 1 30 FIG 1 31 FIG 1 32 FIG 1 33 U V V 1 4 3 Removing the gas valve Important Before removing the gas...

Страница 12: ...ing the automatic air vent 1 Unscrew valve top Y FIG 1 35 2 Remove valve complete with float FIG 1 36 FIG 1 35 Y FIG 1 36 1 5 2 Removing the safety valve 1 Disconnect the discharge pipe work from belo...

Страница 13: ...emoving the pump 1 Remove the U clip Z FIG 1 37 2 Remove the retaining clips A1 FIG 1 38 3 Release the nut C1 FIG 1 39 4 Remove the pipe D1 FIG 1 40 5 Remove the screws E1 FIG 1 41 6 Remove the pump Z...

Страница 14: ...lease nut H1 FIG 1 45 3 Remove back nut I1 FIG 1 46 4 Remove the expansion vessel FIG 1 47 1 5 5 Removing the pressure gauge 1 Remove the U clip F1 FIG 1 42 2 Remove the pressure gauge coupling FIG 1...

Страница 15: ...mounting by releasing the securing clip FIG 1 49 1 50 1 5 8 Removing the heating temperature sensor N T C 1 Pull off the electrical connector and unscrew the sensor probe using a suitable spanner FIG...

Страница 16: ...on cover on the reverse of the control panel FIG 1 54 2 Remove the fuses FIG 1 55 FIG 1 54 FIG 1 55 M1 N1 Important Isolate the electrical supply to the boiler before accessing the control panel 1 5 1...

Страница 17: ...the P C B 4 Remove the screws R1 FIG 1 59 5 Separate the facia panel from the rear of the control panel 7 Remove the screws S1 and remove the P C B FIG 1 60 FIG 1 59 R1 R1 R1 FIG 1 60 S1 S1 1 6 2 Rem...

Страница 18: ...ww heating spares co Tel 0161 620 6677 18 2 FAULT FINDING It is possible to detect and correct any defect by using the standard fault finding diagrams described in this chapter 2 1 FAULT FINDING GUIDE...

Страница 19: ...heating spares co Tel 0161 620 6677 19 IS THE PUMP RUNNING NO NO YES YES POWER TO THE PUMP 1 Check that the pump is not stuck 2 Release replace pump 1 Check system pressure 2 Check pump cable 3 Check...

Страница 20: ...NO YES NO NO YES 1 Check replace air pressure switch 2 Check if reset button is jammed 3 Check replace flame detection electrode 1 Check replace connection cable 2 Check replace P C B 3 Check air pre...

Страница 21: ...lace detection electrode 4 Check replace P C B 1 Check replace spark generator 2 Check replace ignition electrodes and cables 3 Check spark gap 1 Check gas supply pressures 2 Check gas pressure to bur...

Страница 22: ...Supplied By www heating spares co Tel 0161 620 6677 22...

Страница 23: ...f L E D K Reset Button L Central Heating L E D M Transformer N Circulation Pump Relay O Fan Relay P Gas Valve Relay Q Spark Generator I C A01 Circulation Pump A02 Fan A03 Spark Generator Gas Valve Sup...

Страница 24: ...Supplied By www heating spares co Tel 0161 620 6677 24 microCombi 23 MFFI SE016A SF013A...

Страница 25: ...Supplied By www heating spares co Tel 0161 620 6677 25 4 SHORT SPARE PARTS LIST microCombi 23 MFFI...

Страница 26: ...Supplied By www heating spares co Tel 0161 620 6677 26...

Страница 27: ...Supplied By www heating spares co Tel 0161 620 6677 27 NOTES...

Страница 28: ...ecanati Manufacturer Merloni TermoSanitari SpA Italy Commercial subsidiary MTS GB LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone 01494 755600 Fax 01494 459775 Internet htt...