41
SERVICING
isar + programmer -
Installation and Servicing
58 IGNITION ELECTRODE REPLACEMENT
59 FLAME DETECTION ELECTRODE REPLACEMENT
1.
Refer to Frame 52.
2.
Remove the boiler front and sealing panels. Refer to
Frames 44 & 45.
3.
Unplug the ignition lead from the electrode.
4.
Remove the earth lead from the ignition electrode.
5.
Remove the remaining screw holding the ignition
electrode to the combustion chamber.
1.
Refer to Frame 52.
2.
Remove the boiler front and sealing panels. Refer to
Frames 44 & 45.
3.
Unplug the flame detection lead from the electrode.
4.
Remove the 2 screws holding the flame detection
electrode to the combustion chamber.
6.
Remove the electrode.
7.
Fit the new ignition electrode, using the new gasket
supplied. Check dimensions as shown.
8.
Reassemble in reverse order, and check that no damage
to the combustion chamber insulation has occurred
during the electrode replacement.
9.
Check the operation of the boiler. Refer to Frame 52.
5.
Remove the electrode.
6.
Fit the new flame detection electrode, using the new gasket
supplied. Check dimensions as shown.
7.
Reassemble in reverse order, and check that no damage to
the combustion chamber insulation has occurred during the
electrode replacement.
8.
Check the operation of the boiler. Refer to Frame 52.
60 SPARK GENERATOR REPLACEMENT
1.
Refer to Frame 52.
2.
Disconnect the leads from the spark generator and bracket.
3.
Remove the M5 screw securing the spark generator bracket
to the flue casting.
4.
Remove the 2 M4 screws securing the spark generator to the
bracket.
5.
Fit the new spark generator and re-assemble in reverse
order.
6.
Check operation of the boiler. Refer to Frame 52.
4
2
3
nm7
5
48
SER
VICING
202851-1new.pmd
17/11/2006, 07:40
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