Ariston micro Genius 23 MFFI Page 26 Servicing Instructions Download | Manualshive

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26

B063

microGENUS 23/27 MFFI

998616
573521
998077
573520
997147
997077
569236
998613
571547
998099
998940
998424
574279
998645
997089
998836
999091
999599
998947
999245
573989
571651
999397
998894
997206
998620
998893
998618
998669
998887
998939
571646
573295
573825
573172
998623
998622
998624
998941
997029
998490
998718
998975
998974
998644
998643
998738
998961
999207
571547
571772
571771
571770
998172
998716
998717

Key

no.

G.C. part

no.

ARISTON

Part No.

Description

2

5

12
14
16
17
18
19
20
21
24
25
26
27
28
33 AB
33 CD
38
41
43

52AB

52CD

66AB

66CD

72

74AB

74CD

75C
75D

76AB

76CD

75A
75B

77
79
98
99
100

311
321
331
332
333
334
351
352
353
354 AB
354 CD
371
372
373
374
375
381
382

379816

E61 468
164 282
E61 475
164 225
E25 427
E61 429
164 338
E61 478
E24 077
E61 479
E61 482
E61 483
E25 529
E61 848
E61 485
E61 490
E61 881

E61 519
E61 520
E61 530
E03 818

E61 967
E25 425

E61 546
E61 547
E61 549
E61 972
E61 974
E26 767
E26 657
E26 658
E26 378
E61 565
E61 567
E61 569

E25 582
E61 647
E61 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 gauge
Air pressure switch
Air pressure switch
Fan
Fan
Thermostat (overheat)
Main exchanger
Main exchanger
Burner 12 ramp (natural gas)
Burner 12 ramp (LPG)
Burner 14 ramp (natural gas)
Burner 14 ramp (LPG)
Secondary exchanger (p-type 23kW)
Secondary exchanger (p-type 27kW)
O-ring (secondary exchanger)
Safety valve (1/2" 3 bar)
Electrode (Ignition R.H.)
Electrode (Ignition L.H.)
Detection electrode
D.H.W. actuator kit
Operator coils (SIT SIGMA)
Central heating by-pass kit
Heating spring kit
3-way spring kit
Actuator bush
Gasket (auto air vent)
Auto air vent
Gasket (pump head)
Pump head (Gold 15/5)
Pump head
Diaphragm (main flow switch)
Magnet (main flow switch)
Spring (main flow switch)
Main flow switch top cap
Main flow switch reed system
Burner jet 1.25 full kit (Natural gas)
Burner jet 0.72 full kit (LPG)

1

1
1
1
1

1
1
1
1
1
1
1
1
1
1
1
1
1

1
1

1

1
1
1
1

1
1
1
1
1
1
1
1
1
1
1
1

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Summary of Contents for micro Genius 23 MFFI

Page 1: ...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 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 flo...

Page 3: ...f 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...

Page 4: ...hamber 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...

Page 5: ...lose 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...

Page 6: ...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 overh...

Page 7: ...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 swi...

Page 8: ...w 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 h...

Page 9: ...ting 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...

Page 10: ...e 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 reas...

Page 11: ...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 Discon...

Page 12: ...nscrew 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 m...

Page 13: ...G 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...

Page 14: ...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...

Page 15: ...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 actu...

Page 16: ...e 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...

Page 17: ...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 remo...

Page 18: ...T 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 sufficie...

Page 19: ...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...

Page 20: ...onnection 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...

Page 21: ...k 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...

Page 22: ...ty 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...

Page 23: ...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 Circul...

Page 24: ...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: ...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 3...

Page 26: ...2 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...

Page 27: ......

Page 28: ...oni 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...

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