Fan & Flue Hood - Potterton Suprima 30 HE Installation & Service Instructions Manual

Fan motor
30 - 60 shown
Gasket
Flue hood
Combustion chamber
cover screw
9.9
9.9
Fig. 37
38
intelligently applied technology
Warning
325V d.c
Isolate the
mains supply.
Sensing tubes
Venturi
Gaitor
Combustion
chamber cover
locating lip
9.9 Fan and Flue Hood
a.c fan - 30 to 60 models
d.c. fan - 70 and 80 models
1. Perform General Access - See 9.2.
2. Remove the screw securing the front
combustion chamber cover. Pull the cover
out slightly then down to unhook and lift away
from the boiler.
3. Note how they are fitted then disconnect the
sensing tubes from the venturi.
4. Disconnect the electrical spade connectors
from the fan motor (30 to 60) or electrical
plugs (70 to 80).
5. Roll the gaitor away from the venturi towards
the secondary heat exchanger.
6. Slide the fan and flue hood forwards and
away from the boiler.
7. Remove the four screws securing the fan to
the flue hood and the screw securing the
venturi to the fan.
8. On re-assembly:-
Remove all traces of gasket from the flue
hood then attach new gasket. Fit the fan to
the flue hood and secure using four screws
previously removed. Fit the venturi assembly
to the replacement fan.
Ensure that the flue hood locates under the
clips at the rear of the chassis. The front of
the flue hood will rise slightly under the
pressure of the clips.
Re-assemble all remaining parts in reverse
order. Polarity is not important when re-
connecting a.c. fan wires.
Ensure the sensing tubes are fitted correctly,
the coloured tube will be nearest to the
fan.
© Baxi Heating UK Limited 2005