Ariston EuroCombi Type C 23 MFFI Servicing Instructions Download Page 32

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

23 99 84 1268 311 -

Stampa:

Bieff

Recanati

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: http://www.mtsgb.ltd.uk
E-mail: [email protected]
Technical Service Hot Line: (01494) 539579

Summary of Contents for EuroCombi Type C 23 MFFI

Page 1: ...Supplied By www heating spares co Tel 0161 620 6677 A 23 MFFI A 27 MFFI G C N 47 116 18 47 116 19 Servicing Instructions Type C Boilers LEAVE THESE INSTRUCTIONS ADJACENT TO THE GAS METER...

Page 2: ...9 Removing the Spark Ignitor 11 Removing the Gas Valve 12 1 5 Access to the Hydraulic Circuit Removing the D H W Secondary Exchanger 12 Removing the Safety Valve 13 Removing the Automatic Air Vent 13...

Page 3: ...his will also require the removal of the casing To dismantle the front part of the casing proceed as follows 1 Remove screw A see fig 1 1 2 Lift the front panel up and forward see fig 1 2 A Fig 1 2 Fi...

Page 4: ...lower control panel 1 Remove the screws B 2 Push the two side panels outward slightly fig 1 5 3 Rotate the control panel forward and down Fig 1 4 B Fig 1 5 B C Fig 1 7 Fig 1 6 C To access the areas w...

Page 5: ...the Combustion Chamber Remove the screws D Remove the screws E Removing the combustion cover G G G G G G G Fig 1 08 Fig 1 09 F F F F Removing the sealed chamber frontal cover Remove the screws D Remo...

Page 6: ...chamber fig 1 10 2 Remove the screws H of the burner see fig 1 11 3 Remove the burner see fig 1 12 4 Remove the injectors using a No 7 socket spanner 5 Replace in reverse order Removing the burner an...

Page 7: ...5 Remove screw J using a Philips No 2 star tip screwdriver see fig 1 16 6 Slide the electrode gently downward see fig 1 17 To replace repeat the steps in reverse order paying particular attention to t...

Page 8: ...hamber see fig 1 21 Use a No 2 star tip screwdriver to remove the switch from the plate Fig 1 21 Fig 1 20 1 Drain the boiler of water 2 Release the two connection nuts K connecting the exchanger to th...

Page 9: ...ew P see fig 1 22 2 Extract the venturi see fig 1 23 Removing the venturi device Removing the fan A 23 MFFI 0 P Fig 1 22 Fig 1 23 1 Disconnect electrical connections Q see fig 1 24 2 Remove screws R s...

Page 10: ...ical connections and remove screws S using a No 2 star tipped screwdriver see fig 1 27 2 Pull fan to the right forward and remove see fig 1 28 3 Remove fan from mounting plate 4 Remove screws T see fi...

Page 11: ...on the pressure gauge corresponding to the minimum power see table A page 11 6 When you have completed the above operations turn off the hot water tap re connect the supply terminal to the modureg on...

Page 12: ...d By www heating spares co Tel 0161 620 6677 12 B029 Regulating the heating power for natural gas G20 Regulating the heating power for butane gas G30 Regulating the heating power for propane gas G31 T...

Page 13: ...eating control and is situated on the P C B see the electrical diagrams By adjusting the potentiometer it is possible to change the time interval between the burner shutting down and its next ignition...

Page 14: ...hat the O rings are in good condition and repla ce if necessary Important Before any component is removed the boiler must be drained of all water Removing the gas valve 1 Disconnect all the cables fro...

Page 15: ...ve the valve see fig 139 Removing the automatic air vent 1 Unscrew valve A1 see fig 1 39 Removing the main circuit flow switch 1 Remove the cable of the main circuit flow switch A3 see fig 1 41 2 Remo...

Page 16: ...43 2 Release the nuts A6 and remove the pump see fig 1 44 Removing the pressure gauge 1 Remove the inspection panel see fig 1 6 1 7 2 Release coupling A7 using a 14 mm open ended spanner see fig 1 45...

Page 17: ...the overheat thermostat 1 Remove the electrical connection from the overheat thermostat see fig 1 50 2 Then remove the thermostat from the pipe by releasing its securing clip Removing the heating tem...

Page 18: ...anel see fig 1 6 1 7 2 Remove fuse see fig 1 52 1 6 Access to the Control System Fig 1 52 Fig 1 53 Fig 1 54 B1 Removing the time clock 1 Remove the inspection panel see fig 1 6 1 7 2 Remove electrical...

Page 19: ...the electrical plug connectors and screws B4 see fig 1 57 8 To remove the 240V P C B remove the electrical plug connectors and screws B5 see fig 1 58 9 Replace either P C B in reverse order Fig 1 55 F...

Page 20: ...heating spares co Tel 0161 620 6677 20 B029 2 FAULT FINDING It is possible to detect and correct any defect by using the standard fault fin ding diagrams described in this chapter 2 1 Fault Finding G...

Page 21: ...Supplied By www heating spares co Tel 0161 620 6677 21 B029...

Page 22: ...Supplied By www heating spares co Tel 0161 620 6677 22 B029...

Page 23: ...Supplied By www heating spares co Tel 0161 620 6677 23 B029...

Page 24: ...Supplied By www heating spares co Tel 0161 620 6677 24 B029...

Page 25: ...eating N Soft light Adjustment O Max Heating Temperature Adjustment Q On Off L E D R On Off Switch S Interface Wire for P C B s T Relay Motorised Valve U Ignitor Relay V Gas Valve Relay W Fan Relay X...

Page 26: ...Supplied By www heating spares co Tel 0161 620 6677 26 B029 A 23 MFFI A 27 MFFI...

Page 27: ...Supplied By www heating spares co Tel 0161 620 6677 27 B029 4 SHORT SPARE PARTS LIST A 23 MFFI...

Page 28: ...Supplied By www heating spares co Tel 0161 620 6677 28 B029 A 23 MFFI...

Page 29: ...Supplied By www heating spares co Tel 0161 620 6677 29 B029 23 99 84 1268 211 B029 Stampa BIEFFE Recanati A 27 MFFI...

Page 30: ...Supplied By www heating spares co Tel 0161 620 6677 30 B029 A 27 MFFI...

Page 31: ...Supplied By www heating spares co Tel 0161 620 6677 31 B029...

Page 32: ...Recanati 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 ht...

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