39
Response 80 / 100 / 120
- Installation
62
GAS CONTROL VALVE AND SOLENOID REPLACEMENT
SERVICING
SER
VICING
To replace the gas valve COMPLETE
Refer to Frame 54.
1. Remove the front and sealing panels. Refer to Frame
48.
2. Remove the casing bottom panel.
3. Remove the control panel. Disconnect the electrical
leads (noting their position for refitting) and place
panel safely to one side.
4. Remove the fan unit. Refer to Frame 49.
5. Remove the 2 securing screws from the pressure
gauge sub panel
6. Gently ease the pressure switch housing out of the
pressure switch sensing hose.
7. Unplug the electrical leads from the gas valve.
8. Undo the gas cock union connection.
9. Undo the 2 extended nuts retaining the gas injection
pipe and withdraw the pipe, taking care not to lose
the 'O' ring seal. Undo the third nut and the gas outlet
manifold block.
To replace ONLY the SOLENOIDS
a. Follow steps 3, 6 and 7.
b. Undo the 2 retaining screws on the solenoids then pull
the solenoid to release.
c. Re-assemble in reverse order. Ensure step 13 (Frame
63) is followed.
Summary of Contents for responce 100
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