Air/Gas Flap Valve Assembly - Bosch Worcester Greenstar CDi Compact ErP Series Installation, Commissioning And Servicing Instruction

Combustion air inlet and gas pipe disconnection
1. Rotate the combustion air inlet pipe anti-clockwise to release from the
fan assembly and pull away from the fan.
2. Undo the top gas pipe connector at the gas valve.
2.
Fig. 92 Combustion air inlet pipe removal
Fan removal
The boiler case is shown removed to aid clarity.
3. Rotate the exhaust pipe anti-clockwise to gain access to the fan
assembly securing screws.
4. Support the weight of the fan and remove the two screws securing
the fan.
3.
Fig. 93 Fan removal 1
5. Rotate the exhaust pipe clockwise.
6. Pull the fan assembly away from the mount, lift and rotate the fan
towards you. Ensure that the front of the fan clears the left hand front
castellated nut securing the burner housing.
7. Pull the gas pipe off the fan body connection, the pipe is secured by
the interference fit between the pipe and connector.
8. Remove the electrical connector and earth from the fan.
CDi Compact ErP - 6 720 813 276 (2015/07)
1.
4.
When refitting the rubber gas pipe, ensure that the pipe
is correctly oriented by aligning the notch in the pipe
with the lug on the fan connector. Do not kink the pipe.
There is a raised arrow on the pipe indicating the location
of the notch.
6.
Fig. 94 Fan removal 2

7.8.11 Air/gas flap valve assembly

1. Remove the single screw securing the air/gas flap valve assembly.
2. Pull the flap assembly away from the housing.
2.
Fig. 95 Air/gas flap valve
SERVICE AND SPARES
5.
7.
1.
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