Worcester Greenstar 25Si Compact Installation, Commissioning And Servicing Instructions page 49

REMOVE THE USED SEAL
4. Discard the "tubular" seal [2] or the "moulded" seal [3], depending on
which type is fitted and replace with the seal that is provided.
Fig. 87 Remove the existing seal
FITTING THE "MOULDED" SUMP SEAL
1. Place the seal [3] on the sump interface.
2. Ensure that the lug flaps are mounted onto the sump lugs.
Before fitting the Flueway:
▶ Ensure that the seal is clean and free from debris.
Fig. 88 Moulded style seal
FITTING THE "TUBULAR" SUMP SEAL
3. Fit the Flueway sump seal [2] into the Flueway.
Ensure the seal is fitted fully into the recess in the underside of the
Flueway.
Before fitting the Flueaway:
▶ Ensure that the seal is clean and free of debris.
5.
Fig. 89 Tubular style sump seal
Greenstar Si Compact ErP - 6 720 813 278 (2015/07)
2
4.
3
6720803800-12.1Wo
1.
2.
6720803800-13.1Wo
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. 90 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. 91 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.
SERVICE AND SPARES
1.
4.
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