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31
221098C
9.1 Burner
Refer to Section 7.3.
9.2 Injectors
Refer to Section 7.3.
9.3 Gas Tap and Micro Switch Assembly
Refer to Section 7.5, and diagram 7.10 to remove the
micro switch.
9.4 Combustion Products Discharge Safety
Device
Remove canopy.
Refer to Section 7.3 to remove the burner.
Disconnect the union connections, remove the mounting
bracket securing screws and combustion products
discharge safety device, see diagram 7.8.
Pull off the lower sensing tube. When replacing take
care not to damage the “O” ring seals.
Remove right hand side panel, see diagram 4.10.
Remove the thermocouple nut, see diagram 7.12.
Remove the ignition lead, see diagram 9.1.
Note. When refitting the combustion products discharge
safety device, take care not to trap the ignition lead
under the mounting bracket.
When refitting make sure that the spark gap is as shown
in diagram 7.9.
GAS TAP
FILTER
GAS TAP BRACKET
AND NITING PLATE
ASSEMBLY
FILTER
CROSS
SECTION
VIEW
Diagram 9.2
5477
9.5 Ignition Lead
Refer to Section 7.3 to remove the burner.
Disconnect the tube nuts, remove the mounting bracket
securing screws, remove the ignition lead (black end),
see diagram 7.8.
Remove side panel securing stop screw and open panel,
see diagram 4.10.
Remove the ignition lead (clear end), see diagram 9.1.
Note. When refitting the combustion products discharge
safety device, take care not to trap the ignition lead under
the mounting bracket.
9.6 Spark Generator
Remove right hand side panel, see diagram 4.10.
Remove the right hand side casting, see diagram 5.13.
Remove retaining screw, disconnect the electrical leads
and then release the spark generator from the location tab
at the rear, see diagram 9.1.
9.7 Gas Tap Pilot Filter
Gain access to the gas tap as Section 7.6.
The filter, which is very small, is in the pilot port of the
gas tap, to remove use a small non-metallic tool.
When fitting the replacement it is important that the
filter is seated correctly as shown in diagram 9.2.
9 R e p l a c e m e n t o f P a r t s