OM/SM-BPM-G 13
13
c) Remove retaining screws securing spark
ignition module.
d) Withdraw spark ignition module from
control compartment.
e) Replace in reverse order.
3.5
Removal of Tilt Switch
(Turn gas and
electricity mains off)
a) Remove electical panel cover and control
as described in Paragraph 3.3.1 & 3.3.2.
b) Disconnect electrical leads from tilt switch
(See Fig. 11).
c) Remove screws holding the tilt switch.
d) Withdraw the tilt switch from control
compartment.
e) Replace in reverse order.
3.6
Removal of Gas Control Valve
(Turn
gas and electricity mains off)
a) Remove ignition module cover
described in Paragraph 3.4.
b) Disconnect electrical leads from gas control
valve, hi limit thermostat and ignition module
assembly.
c) Undo and remove gas pipe assembly between
two pipe unions.
d) Remove the gas control valve from piping
assembly.
e) Replace in reverse order.
3.7
Removal of On/Off Switch
(Turn gas and electricity mains off)
a) Remove electrical panel cover
described in Paragraph 3.3.1.
b) Disconnect electrical leads from On/Off switch.
Fig. 11A
Fig. 11
3.3.2
Removal of Control Cabinet Side Panel
a) Remove lid as described above.
b) Remove 2 screws on lower edge of cover.
c) Remove 4 screws at center of cover.
d) Lift off the removable side panel.
e) Replace in reverse order.
3.3.3
Removal of Upper Control Box Panels
a) Remove thermostat knob and timer knob.
b) Remove 4 screws from top.
c) Remove upper panel and gasket.
d) Replace in reverse order.
3.4
Removal of Spark Ignition Module
(Turn gas and electricity mains off)
a) Remove 2 screws on ignition module cover
(see Fig. 8)
b) Disconnect electrical leads from spark ignition
module.
3.3
Removal of Control Panels
3.3.1
Removal of Electrical Panel Cover Assembly
a) Remove the three screws which secure the lid to
the control cabinet around its edge - 2 on sides,
1 on rear.
b) Lift-up the lid, being careful to dislodge the 2
pins welded at lower edge of front end.
c) Replace in reverse order
Fig. 10
