background image

19

B063

IS THE  PUMP

RUNNING?

YES

NO

NO

NO

YES

YES

YES

POWER TO

THE PUMP?

DOES THE

"NO WATER" L.E.D.

ILLUMINATE

(WITHIN 40 SECS)?

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

Содержание micro Genius 23 MFFI

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 27: ......

Страница 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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