Fan Assembly - Worcester Greenstar CDi Compact Installation, Commissioning And Servicing Instructions

SERVICE AND SPARES

6.8.9 FAN ASSEMBLY

CAUTION: Component replacement:
▶ After replacement of a gas related component, where
a gasket or seal has been disturbed or replaced, check
for gas tightness using a gas sniffer/analyser.
▶ On re-assembly check all affected seals for cracks,
hardness and deterioration.
If damaged or in any doubt the seal must be replaced.
▶ Also after re-assembly, carry out the following
checks:
Fan pressure in section 6.5,
Flue gas analysis in section 6.6.
To remove the fan, disconnect the electrical mains and gas supplies, and
remove the following components:
• Flueway
• Combustion air inlet pipe and gas pipe
FLUEWAY REMOVAL
1. Release the two screws securing the Flueway to the sump.
2. Using a screwdriver under the tabs (1) next to the screws, lever the
Flueway up to clear the seal and pull the Flueway forward.
3. Rotate the exhaust pipe to the left and pull the Flueway down to
separate from the exhaust pipe.
2.
1
Fig. 91 Flueway removal
44
3.
1
1.
SUMP SEAL
1. Place seal on sump interface.
2. Be sure the ear lugs of the seal are mounted on the lugs of the sump.
Before placing the flue pipe.
▶ Be sure the seal is clean and free of debris.
Fig. 92 Sump seal
Never place the seal in the flueway before assembly of
the flueway.
Place seal always on sump interface.
COMBUSTION AIR INLET AND GAS PIPE DISCONNECTION
1. Rotate the combustion air inlet pipe anticlockwise 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. 93 Combustion air inlet pipe removal
1.
2.
1.
6 720 803 800 (2012/11)