IDEAL HE15 Installation And Servicing page 38

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.
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.
38
SERVICING
4
3
mexico HE15, HE18 and HE24
7
4
mxhe7750
8
3
mexico HE -
mexico HE30 and HE36
3
4
Copper washer
Rubber moulded seal
6
4
5
Installation & Servicing