Potterton Suprima 100, Installation & Service Instructions Manual

Page: 27 / 38

To Service the Boiler & Component Replacement - Page 27
4.3.7 Injector
Gain General Access - See 4.1
1. Remove the burner - See 4.3.4.
2. Use a 13mm (A/F) or ½" (A/F) socket spanner to
remove the injectors.
3. Unscrew the injector, use a new sealing washer on re-
assembly.
4.3.8 Fan & Flue Hood
Gain General Access - See 4.1
1. Disconnect the tube from the front of the fan housing -
note how it fits.
2. Disconnect the four wires from the fan motor, at the in-
line 4 way connector.
Loosen the baffle plate securing screw and remove the
baffle plate.
3. Remove the two screws securing the fan to the flue
hood.
4. Carefully pull the fan down and away from the boiler.
5. Flue Hood: On re-assembly ensure that the flue hood
locates under the two brackets at the rear of the chassis.
Check the seal and replace if damaged.
6. Fan: On re-assembly ensure that the rubber seal around
the fan opening is located correctly into the base of the
flue elbow.
7. Re-assemble in reverse order.
S
U
P
0
0
7
6
B
Be careful when removing
the fan not to damage
the flue seal
Disengage the fan
from the flue hood
Flue
Hood
Disconnect
air pressure
tube &
electrical
connection
Loosen baffle
plate securing
screw and
remove
baffle plate
Baffle
plate
Fan
Unscrew the
fan securing
screws
S
U
P
0
0
7
7
A
Remove the
flue hood
Flue Hood Clips
(On re-assembly
ensure that the
Flue Hood locates
under these
two clips)
Flue Hood
Heat Exchanger
Unclip Flue Hood
& Pull Forward