IDEAL he15, Installation And Servicing, Page: 38 / 60

38 mexico HE -
Installation & Servicing
Servicing
mxhe7750
Copper washer
4
Rubber moulded seal
58 BURNER INjECTOR REpLACEMENT
1. Refer to Frame 51.
2. Remove the boiler front panels and inner sealing panel.
Refer to Frames 44 and 45.
3. Remove the fan / venturi assembly. Refer to Frame 53.
4. Remove the 2 injector housing screws.
6. Withdraw the injector housing.
7.
Fit the new injector housing, complete with injector.
8. Reassemble in reverse order, ensuring that the new gas
seal supplied is located correctly in the injector housing.
9. Check operation of the boiler. Refer to Frame 51.
59 gAs CONTROL VALVE REpLACEMENT
1. Refer to Frame 51.
2. Remove the boiler front panels and inner sealing
panel. Refer to Frames 44 and 45.
3. Unplug the electrical lead from the gas control valve
and disconnect the earth wire.
4. Undo the sensing tube connection at the gas control
valve.
5. Undo the union nut at the gas valve pre-piping frame
connection.
6. Undo the union nut on the outlet side of the gas
control valve and remove valve.
7. Undo the 4 gas valve bracket screws, bracket and gas
inlet pipe and remove.
8. Remove the valve bracket fixing screw.
9. Transfer the mounting bracket and gas inlet pipe to
the new gas control valve.
10. Fit new gas control valve, ensuring that any seals
showing damage or deterioration are replaced.
11. Reassemble in reverse order.
12. Ensure the sensing tubing is correctly replaced.
13. Check operation of the boiler. Refer to Frame 51.
57 spARK gENERATOR REpLACEMENT
1. Refer to Frame 51.
2. Remove the boiler front panels
and inner sealing panel. Refer to
Frames 44 and 45.
3. Disconnect the leads from the
spark generator and bracket.
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 51.
mexico hE15, hE18 and hE24
mexico hE30 and hE36
mxhe7791
5
4
8
7
3
6
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VICIN
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4
3
3
4