SERVICING
63
FAN REPLACEMENT
1. Refer to Frame 55.
2. Remove the upper front panel (Refer to frame 57).
3. Remove the fan and gas assembly (Refer to frame 58).
4. Remove the screws retaining the venturi to the fan (for
40, 60, 80, 100 & 120 or mixing chambers (150 only)).
5. Remove the extended nuts holding the venturi to the
fan (80 only).
6. Remove the screws retaining the fan plate (80 only) or
mixing chamber to fan (150 only).
7. Transfer venturi and gas valve assembly to the new fan.
8. Reassemble in reverse order replacing all gaskets.
9. Check the operation of the boiler (Refer to frame 55).
40kW & 60kW
80kW
100kW
120kW
150kW
4
5
4
4
4
4
6
6
Model
40
40P
60
60P
80
80P
100
120
150
176272
176272
176272
176272
176273
176273
176273
176274
176274
176360
176360
176361
176361
176362
176362
175232
174381
176362
176313
176313
176313
176313
176313
176313
176358
176358
176313
176369
176559
176370
176560
176371
176561
176373
176373
176371
Fan Venturi
Gas Management Assembly Part No’s
Valve Injector
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