42
Response SE Combi -
Installation
62 FAN UNIT REPLACEMENT
1.
Refer to Frame 60.
2.
Remove the boiler casing. Refer to Frame
53.
3.
Remove the boiler sealing panel. Refer to
Frame 54.
4.
Undo the fan inlet venturi top securing
screw.
5.
Slacken the other 2 securing screws.
6.
Slide the venturi upward to disengage the
sensing pipe from the gas manifold.
7.
Withdraw the venturi, complete with sensing
pipe, from the boiler.
8.
Depress the retaining clip and rotate the fan
to the right to disengage the bayonet fixing
on the fan outlet.
9.
Draw the fan forward and unplug the
electrical lead from the motor.
10.
Withdraw the fan from the boiler.
Note.
Always take care when handling the
fan, in order to preserve the balance of the
impeller.
SERVICING
Legend
A
Venturi
B
Sensing pipe
63 BURNER REPLACEMENT
Legend
A
Burner
B
Gasket
C
Burner
mounting
flange
D
'O' ring seal
1.
Refer to Frame 60.
2.
Remove the boiler casing. Refer to Frame 53.
3.
Remove the boiler sealing panel. Refer to Frame 54.
4.
Remove the fan assembly. Refer to Frame 55.
5.
Disconnect the ignition and detector leads.
6.
Undo the 3 fixing screws securing the burner assembly.
7.
Withdraw the burner assembly downward and out of
the heat exchanger.
8.
Remove the 3 securing screws and withdraw the
burner from the mounting flange.
9.
Fit the new burner, replacing any damaged or
deteriorating gasket.
10.
Re-assemble in reverse order ensuring that the
'O' ring seal in the burner mounting flange is in
place.
Note.
Check the spark and detection gaps. Refer to
Frame 56.
11.
Transfer the fan outlet adaptor to the new fan,
renewing any damaged or deteriorating gasket.
12.
Fit the new fan in reverse order, ensuring that the 'O' ring
seal in the fan outlet adaptor is in place.
13.
Check the operation of the new fan.
SER
VICING