Ariston microGENUS 23 MFFI Servicing Instructions Download

Page: 1 / 28

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

Servicing
Instructions
Type C Boilers

G.C.N: 47-116-14

47-116-15

LEAVE THESE INSTRUCTIONS
WITH THE END-USER

Country of destination: GB

Summary of Contents for microGENUS 23 MFFI

Page 1: ...Supplied By www heating spares co Tel 0161 620 6677 Servicing Instructions Type C Boilers G C N 47 116 14 47 116 15 LEAVE THESE INSTRUCTIONS WITH THE END USER Country of destination GB ...

Page 2: ...he gas pressures Removing the spark generator Removing the gas valve 1 5 ACCESS TO THE WATER CIRCUIT Removing the D H W secondary exchanger Removing the safety valve Removing the automatic air vent Removing the main circuit flow switch Removing the pump Removing the pressure gauge Removing the expansion vessel Removing the overheat thermostat Removing the heating temperature sensor N T C Removing ...

Page 3: ...nspection 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 the boiler require the control panel to be lowered This will also require the removal of the casing Removing the front panel 1 Loosen the fastening screws A of the control panel located on the lower part of the panel itself...

Page 4: ...FIG 1 6 2 Lift the sealed chamber frontal cover from the locating pins FIG 1 7 FIG 1 6 C C FIG 1 7 Removing the side panels 1 Remove the four screws D for each side panel FIG 1 8 2 Pull the panel away from the boiler then lift the panel up and remove from the boiler FIG 1 9 D D D FIG 1 8 FIG 1 9 18 eps 98 tif 17 eps 97 tif ...

Page 5: ...e at its connection point close to the P C B Fig 1 14 FIG 1 13 G FIG 1 14 Removing the burner and jets 1 Remove the screws F from the burner FIG 1 11 2 Remove the burner FIG 1 12 3 Remove the jets using a No 7 socket spanner 4 Replace in reverse order 5 B063 Removing the combustion cover 1 Remove the screws E FIG 1 10 2 Lift off the combustion cover 1 3 ACCESS TO THE COMBUSTION CHAMBER E E E FIG 1...

Page 6: ...electrode may break b Check that the cables have been connected correctly c Check that the rubber gasket covers the cable electrode connection point completely FIG 1 15 FIG 1 16 H 1 Drain the boiler of water 2 Release the overheat thermostat sensor I FIG 1 17 3 Release the two connection nuts J connecting the exchanger to the flow and return pipes FIG 1 18 4 Pull it straight out FIG 1 19 Removing ...

Page 7: ...nd mounting plate FIG 1 26 Removing the fan 1 Disconnect the electrical connections K and silicon pipes L from their connection points FIG 1 20 2 Remove screws M on the top of the sealed chamber FIG 1 21 3 Unscrew to remove switch from the plate FIG 1 22 FIG 1 21 FIG 1 20 7 B063 Removing the air pressure switch L K M M FIG 1 22 FIG 1 25 R R FIG 1 24 P Q FIG 1 23 N N O FIG 1 26 91 tif 90 tif 93 tif...

Page 8: ...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 minimum power see TABLE A page 9 6 When you have completed the above operations turn off the hot water tap re connect the supply terminal to the modureg on the gas valve and replace the cap on the screw of the modureg ...

Page 9: ...model 27 34 36 38 40 Regulating the heating power for propane gas G31 23 MFFI 2 70 20 11 0 2 0 1 16 2 01 Kg h 0 87 Kg h 27 7 mbar 6 0 mbar 28 mbar 12 x 0 77 2 00 Kg h 0 85 Kg h 35 5 mbar 7 3 mbar 37 mbar 12 x 0 77 27 MFFI 3 15 20 11 0 1 6 1 26 2 34 Kg h 0 94 Kg h 27 7 mbar 4 6 mbar 28 mbar 2 31 Kg h 0 93 Kg h 35 5 mbar 6 0 mbar 37 mbar 14 x 1 30 14 x 0 77 14 x 0 77 TABLE A CG007A CG008A CG009A TB0...

Page 10: ...e the pipe from the pressure gauge and connect screw C to the pressure outlet in order to seal off the gas 11 Carefully check the pressure outlets for gas leaks valve inlet and outlet IMPORTANT Whenever you disassemble and reassemble the gas connections always check for leaks using a soap and water solution FIG 1 27 FIG 1 28 FIG 1 29 T V Soft light Adjustment Max Heating Adjustment 61 eps 45 eps 4...

Page 11: ...e boiler FIG 1 35 3 Before replacing the exchanger ensure that the O rings are in good condition and replace if necessary 1 6 ACCESS TO THE WATER CIRCUIT FIG 1 30 FIG 1 31 FIG 1 32 FIG 1 33 W X X Removing the gas valve 1 Disconnect all the cables from the solenoid and modureg 2 Remove the spark generator see previous section 3 Release the top nut W FIG 1 30 4 Remove the screws X from the bottom of...

Page 12: ... the automatic air vent 1 Unscrew valve top A1 FIG 1 38 2 Remove valve Fig 1 39 Removing the main circuit flow switch 1 Remove the cable of the main circuit flow switch B1 FIG 1 40 2 Remove the screws C1 FIG 1 41 3 Remove the main circuit flow switch FIG 1 36 Fig 1 38 FIG 1 40 Z B1 C1 C1 FIG 1 37 A1 Fig 1 39 FIG 1 41 40 eps 37 eps 39 eps 41 eps 53 eps 54 eps ...

Page 13: ...ve the retaining clip E1 FIG 1 42 3 Remove the U clip F1 FIG 1 43 4 Release the nut G1 FIG 1 44 5 Remove the pipe H1 FIG 1 45 6 Remove the screws I1 FIG 1 46 7 Remove the pump FIG 1 47 D1 FIG 1 41 FIG 1 42 FIG 1 43 FIG 1 44 E1 F1 FIG 1 45 FIG 1 46 FIG 1 47 G1 H1 I1 I1 31 eps 33 eps 34 eps 42 eps 32 eps 35 eps 25 eps ...

Page 14: ...G 1 51 3 Remove back nut M1 FIG 1 52 4 Remove the expansion vessel FIG 1 53 Removing the pressure gauge 1 Remove the U clip J1 and remove the pressure gauge coupling FIG 1 48 2 Push the pressure gauge through the control panel from the rear FIG 1 49 FIG 1 48 FIG 1 50 J1 FIG 1 49 K1 L1 FIG 1 51 FIG 1 52 FIG 1 53 K1 M1 34 eps 27 eps 77 eps 57 eps 58 eps 59 eps ...

Page 15: ...able spanner FIG 1 56 FIG 1 54 FIG 1 55 Removing the D H W temperature sensor N T C 1 Pull off the electrical connector Q1 and unscrew the sensor probe using a suitable spanner FIG 1 57 FIG 1 57 Removing the divertor valve actuator 1 Unplug the electrical connector R1 FIG 1 58 2 Release the retaining clip S1 and remove the divertor valve actuator FIG 1 58 Removing the D H W flow switch 1 Unplug th...

Page 16: ...trol panel FIG 1 60 2 Remove the fuses FIG 1 61 1 6 ACCESS TO THE CONTROL SYSTEM Removing the time clock 1 Unplug electrical connection W1 from the clock FIG 1 62 2 Remove the screws W2 see fig 1 63 3 Remove the clock from the panel see fig 1 64 FIG 1 60 FIG 1 62 FIG 1 61 FIG 1 64 W1 72 eps 61 eps 69 eps 1190 tif FIG 1 63 1189 jpg W2 ...

Page 17: ...the reverse of the control panel 3 Unplug all electrical connections from the P C B FIG 1 65 4 Remove the screws X1 FIG 1 66 5 Separate the facia panel from the rear of the control panel FIG 1 67 7 Remove the screws Y1 and remove the P C B FIG 1 68 FIG 1 66 X1 X1 X1 X1 X1 X1 FIG 1 65 FIG 1 67 FIG 1 68 Y1 Y1 64 eps 1187 eps 65 eps 82 eps ...

Page 18: ...S WITH ELECTRONIC ANTI FROST DEVICE PROTECTION IS ACTIVATED IF HEATING TEMP IS 5 C MUST TIME CLOCK AND OR ROOM THERMOSTAT BE ACTIVATED A ECONOMY COMFORT SELECTOR TEMP C H 34 C Comfort Comfort Economy Economy 1 There is sufficient water in the system 2 The gas is turned on 3 The electrical supply is turned on 1 Check reset system pressure 2 Check restore gas supply 3 Check replace short circuited h...

Page 19: ...CS 1 Check if there is air in the system 2 Check main circuit flow switch operation 3 Check pressure on the water gauge and fill system to return to 1 bar 1 Turn the boiler off then on protection reset 1 Check that the pump is not stuck 2 Release replace pump 1 Check pump cable 2 Check replace P C B 3 Check main flow main switch operation when drawing D H W A B FC004Ab ...

Page 20: ...ow switch 2 Check replace connection cable 3 Check replace P C B 1 Check replace air pressure switch 2 Check if reset button is jammed 3 Check replace flame detection electrodes 1 Check replace connection cable 2 Check replace P C B 3 Check replace air pressure switch 1 Replace fan 1 Reset the boiler PUMP PROTECTION ACTIVATED INTERNAL P C B PROTECTION ACTIVATED B C FC004Ac ...

Page 21: ... detection electrode 4 Check replace P C B 1 Check power supply of gas valve 2 Check replace P C B 3 Check efficiency of gas valve 4 Replace gas valve Shutdown L E D off fan restarts IS THE AIR PRESSURE SWITCH ACTIVATED CHECK P ON TEST PRESSURE INTAKE IS FLUE DISCHARGE NORMAL HAS THE BOILER SAFETY SHUTDOWN BEEN ACTIVATED HAS THE BOILER SAFETY SHUTDOWN BEEN ACTIVATED 1 Check exhaust discharge 2 Che...

Page 22: ...in circuit flow switch faulty D H W flow switch faulty 3 way valve check C H D H W temperature probes check gas pressures check water flow rate check secondary heat exchanger primary heat exchanger faulty or lime scale deposits low heating system water pressure check gas pressures check C H D H W temperature probes check for leaks on the heating circuit faulty filling loop faulty secondary heat ex...

Page 23: ...ort Selector N Overheat L E D O Temperature L E D s P Transformer Q Circulation Pump Relay R Fan Relay S Gas Valve Relay T Motorised Diverter Valve Relay V Spark Generator U Anti cycling Device Adjustment for Heating A01 Circulation Pump A02 Fan A03 Spark Generator Gas Valve Supply A04 Motorised Diverter Valve A05 Flame Detection Circuit A06 Detection Electrode A07 Main Circuit Temperature Probe A...

Page 24: ...eating spares co Tel 0161 620 6677 24 B063 microGENUS 23 27 MFFI J K Blk Blk Gry Gry Pnk Pnk Pnk Gry Gry Wh Wh Wh Wh Wh Wh Wh Rd Blk Rd Blk Rd Blk Blk Blk Blk Brn Brn Brn Brn Blk Blk SE017A U J K M L R S Q T O N SF014A ...

Page 25: ...87 83 82 84 86 14 85 69 70 71 72 102 71 74 107 108 106 104 64 103 14 56 58 9 56 56 81 73 37 39 93 97 44 88 78 79 66 65 68 67 51 52 50 94 334 331 332 333 code 998613 311 code 998940 codes 998836 354 353 352 351 371 372 373 374 375 code 998099 321 code 997089 MODELS CHARACTERISTICS SERIAL NO VALIDITY REF MICROGENUS 23 MFFI METHANE 2320005600001 A MICROGENUS 23 MFFI LPG 2320005600001 B MICROGENUS 27 ...

Page 26: ... 648 E61 649 E61 650 E61 652 E61 654 E61 656 E61 660 E62 030 E24 077 E24 077 E24 076 E24 075 E61 663 E61 665 E61 667 Expansion vessel Gasket 3 8 O ring Gasket 3 4 Motor 3 Way valve Fixing clip motor Temperature probe C H W Flow group Diaphragm main flow switch Main circuit flow switch Return group O ring Gasket Spark generator Gas valve SIT 845 SIGMA Pump Pump Time clock P C B CMP1 FFI Pressure ga...

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

Page 28: ... 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 info mtsgb ltd uk Technical Service Hot Line 01494 539579 ...

Search results

Summary of Contents for microGENUS 23 MFFI

Reviews:

Related manuals for microGENUS 23 MFFI

Brands by name

Popular brands

Ariston microGENUS 23 MFFI, Servicing Instructions

Search results

Summary of Contents for microGENUS 23 MFFI

Reviews:

Related manuals for microGENUS 23 MFFI

Brands by name

Popular brands