36
SERVICING
isar -
Installation and Servicing
54
BURNER REPLACEMENT
1. Refer to Frame 50.
2. Remove the boiler front and sealing panels. Refer to Frames
42 & 43.
3. Remove the fan assembly. Refer to Frame 52.
4. Remove the 6 screws securing the burner (the 3 screws at the
rear are extended to ease access).
5. Lift off the burner from the combustion chamber.
6. Fit the new burner, replacing any damaged or deteriorating
sealing gasket.
7. Reassemble in reverse order.
8. Check the operation of the boiler. Refer to Frame 50.
Note.
Take care not to disturb the detection earth probe at the
rear of the combustion chamber.
53 BURNER INJECTOR REPLACEMENT
1. Refer to Frame 50.
2. Remove the boiler front and sealing panels. Refer to
Frames 42 & 43.
3. Disconnect the electrical leads from the fan.
4. Undo the gas pipe union connection to the injector housing.
5. Remove the screw retaining the fan mounting bracket.
6. Remove the fan and venturi assembly
7. Remove the 2 injector housing screws.
8. Withdraw the injector housing.
9. Fit the new injector housing complete with injector.
10. Reassemble in reverse order, ensuring that the new gas
seal supplied is located correctly in the injector housing.
11. Check operation of the boiler. Refer to Frame 50.
Mounting bracket
7
Ecl 2400
5
Injector
Fan
Gas pipe union
Overheat thermostat
Control thermistor
Flow
pipe
Return thermistor
Return pipe
2037
55 CONTROL THERMISTOR, RETURN THERMISTOR & OVERHEAT ‘STAT REPLACEMENT
1. Refer to Frame 50.
2. Remove the boiler front and sealing panels.
Refer to Frames 42 & 43.
3. Unclip the thermistor / thermostat from the flow / return pipe and
withdraw it from the controls compartment.
4. Disconnect the electrical leads from the
thermistor / thermostat.
5. Reconnect the electrical leads and
reassemble in reverse order, ensuring that the
spring clip is securely on the pipe.
6. Check the operation of the boiler. Refer to
Frame 50.
SER
VICING
Содержание isar m30100
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