33
Minimiser
-
Installation
SERVICING
SER
VICING
64 SPARK GENERATOR REPLACEMENT
1.
Refer to Frame 58.
2.
Disconnect the leads from the spark
electrodes
3.
Disconnect the electrical leads from the spark
generator.
4.
Undo the single screw fixing on the spark
generator
5.
Fit the new spark generator and re-assemble
in reverse order.
6.
Check the ignition and operation of the burner.
62 FLUE THERMOSTAT REPLACEMENT
Refer also to Frame 10 'Boiler exploded view.'
1.
Refer to Frame 58.
2.
Remove the fan assembly - refer to Frame 53.
3.
Remove the burner assembly - refer to Frame 65,
steps 3 to 6.
4.
Disconnect the electrode leads as required.
5.
Undo the electrode securing bracket screws as required.
6.
Fit new electrodes as necessary, ensuring that the
gaskets are in good condition and sealing correctly -
renew as necessary.
7.
Check the spark / detection gaps.
8.
Reassemble in reverse order.
9.
Check the ignition and operation of the burner.
63 SPARK AND DETECTION ELECTRODE REPLACEMENT
Note.
The spark electrodes are replaced as a pair; the detection electrode is a single probe.
Detection
electrode
Spark
electrode
Detection
electrode
5
6
4 ± 1
12 ± 1
10 ± 1
Refer also to Frame 10 'Boiler exploded view' and Frame 37
'Pictorial wiring.'
1.
Refer to Frame 58.
2.
Disconnect the flue thermostat electrical leads.
3.
Unscrew the thermostat from the side of the heat
exchanger.
4.
Fit the new flue thermostat and reassemble in reverse
order.
2
4
3
Burner
Dimensions in mm.
