Gas Control Valve Replacement - IDEAL Henrad SEC 80FF Installation & Servicing Manual

66 GAS CONTROL VALVE REPLACEMENT

Note.
Ensure that the valve is the correct one for the boiler.
The valve is factory set and sealed. No adjustment is required.
1. Refer to Frame 60.
2. Remove the boiler casing. Refer to Frame 53.
3. Remove the boiler sealing panel. Refer to Frame 54.
4. Remove the fan assembly. Refer to Frame 55.
5. Release the securing screw and swing the control panel
down to gain access to the gas valve.
6. Undo the 2 nuts securing the gas injection pipe and
remove the pipe.
7. Undo the gas inlet pipe union.
8. Disconnect the electrical leads
from the valve solenoids.
9. Supporting the valve, undo the 3
securing screws (from inside the
boiler chamber) and withdraw the
valve, complete with mounting
brackets and gas inlet pipe.
10. Transfer the mounting brackets
and sensing pipes to the new
valve, renewing any damaged or
deteriorating sealing gaskets.
11. Transfer the gas inlet pipe to the
new valve, using the new sealing
washer and 'O' ring provided.
12. Fit the new valve in reverse order,
replacing any damaged gaskets.
13. Check the operation of the new
valve.
67 GAS CONTROL VALVE SOLENOID REPLACEMENT
1. Refer to Frame 60.
2. Remove the boiler casing. Refer to
Frame 53.
3. Swing the control panel down.
4. Disconnect the electrical leads from the
valve solenoids, as required.
5. Undo the securing screws as required
and remove the solenoid.
6. Fit the new solenoid and re-assemble
in reverse order.
7. Check the operation of the new
solenoid.
Henrad SEC FF -
Installation
SERVICING
45