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icos - Installation & Servicing
SERVICING
Ecl 2340
Copper washer
4
Rubber moulded seal
59
BURNER INJECTOR REPLACEMENT
1. Refer to Frame 52.
2. Remove the boiler front and sealing panels. Refer to
Frames 45 & 46.
3. Remove the fan / venturi assembly. Refer to Frame 54.
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 52.
60
GAS CONTROL VALVE REPLACEMENT
1. Refer to Frame 52.
2. Remove the boiler front, bottom and sealing panels. Refer
to Frames 45 & 46.
3. Unplug the electrical lead from the gas control valve and
disconnect the earth wire.
4. Remove the sensing tube from the gas control valve.
5. Undo the union nut between the gas valve and the gas
inlet cock.
6. Undo the union nut on the outlet side of the gas
control valve.
7. Undo the gas valve bracket screw, slide the
gas valve forward and remove.
8. Transfer the mounting bracket and gas inlet
pipe to the new gas control valve.
9. Fit new gas control valve, ensuring that any
seals showing damage or deterioration are
replaced.
4
Ecl 2343
5
10.Reassemble in reverse order.
11. Ensure the sensing tubing is correctly replaced and
not kinked or blocked in any way.
12.Check operation of the boiler. Refer to Frame 52.
58
SPARK GENERATOR REPLACEMENT
1. Refer to Frame 52.
2. Disconnect the leads from the spark generator and
bracket.
3. Remove the 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.
nm8745
2
3
2
4
SERVICING