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2000225013B
14 Replacement of Parts
Diagram 14.6
Diagram 14.5
SECURING
SCREW (2)
Diagram 14.4
ELECTRICAL
PLUG
GAS
CONTROL
VALVE
PRESSURE TEST
POINT
SECURING
SCREW (3)
Diagram 14.7
SECURING
SCREW (4)
VENTURI
PLATE
FAN
GAS
MANIFOLD
BURNER
INSULATION
14.6 Gas Control Valve
For access, refer to section 14.1.
Remove the electrical plug from the gas control valve, see
diagram 14.4.
Refer to section 12.3 for removal of the fan, gas valve and
burner assembly.
Before removing the gas valve note its position on the fan.
Remove the three securing screws, which fix the gas valve,
plastic swirl plate to the venturi on the fan.
Remove the gas valve.
Remove the flexible gas supply pipe from the gas control valve.
When refitting the gas valve take care as it can be fitted more
than one way.
After replacing the gas control valve the combustion CO
2
will
need to be checked and adjusted if necessary. See section
12.6.
14.7 Fan
For access, refer to section 14.1.
Refer to section 12.3 for removal of the fan gas valve and burner
assembly.
Remove the gas control valve as described in the relevant parts
of section 14.6.
Remove the venturi plate secured with three screws, see
diagram 14.5.
Remove the two screws securing the fan to the gas manifold.
Check the gasket and replace if necessary.
14.8 Burner
NOTE: THE BURNER WILL REQUIRE A NEW GASKET
WHEN REFITTED.
For access, refer to section 14.1.
Refer to section 12.3 for removal of the fan, gas valve and
burner assembly.
Remove the four screws that secure the burner, see diagram
14.7.