Removal Of Sump Cover; Removal Of Fan; Removal Of Gas Valve - Keston HEAT 2 45 Installation & Servicing

3.8 REMOVAL OF SUMP COVER

1. Refer to Section 2.32.
2. Remove the front panel. Refer to
Section 3.2.
3. Prepare boiler for possible condensate
spillage during the process.
4. Remove the two screws from the sump
cover and pull away from the boiler.
5. Scrape out any deposits.
6. Reassemble in reverse order replacing
all gaskets.
7. Check the operation of the boiler.
Refer to Section 2.32.

3.9 REMOVAL OF FAN

1. Refer to Section 2.32.
2. Remove the upper front panel (Refer to Section 3.2).
3. Remove the fan and gas assembly and air inlet
damper (Refer to Section 3.3).
4. Remove the screws retaining the venturi to the fan.
5. Transfer venturi and gas valve assembly to the new
fan.
6. Reassemble in reverse order replacing all gaskets.
7. Check the operation of the boiler.
8. Refer to Section 2.32

3.10 REMOVAL OF GAS VALVE

1. Refer to Section 2.32.
2. Remove the upper front panel (Refer to Section 3.2).
3. Remove the fan and gas assembly and air inlet damper
(Refer to Section 3.3).
4. Remove the 3 screws holding the gas valve to the
venturi.
7. Remove the 4 screws retaining the inlet flange to gas
valve & transfer to new valve.
8. Fit new gas valve to venturi using the new seal
provided, ensure gas nozzle is fitted correctly.
9. Reassemble in reverse order replacing all gaskets.
10. Check the operation of the boiler.
11. Refer to Section 2.32.
Installation & Servicing
SECTION 3 - SERVICING
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