Balanced Flue

42
8. Gas Valve
8.1 To remove the valve turn off the gas supply at the
isolation device.
8.2 Remove the main burner, see Section 4.
8.3 From inside the rebox remove the locknut from the injector,
see Section 11.
8.4 Remove the pilot feed pipe from the pilot unit, see Section 6.
8.5 Remove the 3 screws at the front of the valve bracket to
remove the gas valve, see Diagrams 19.
19
8.6 Slide the bracket slightly to the right and pull forward to
access the valve connections.
8.7 Disconnect the 2 x 8mm and 1 x 4mm gas pipe ttings at the
back of the gas valve, see Diagram 20 (A).
8.8 Disconnect the thermocouple, see Diagram 20 (B).
20
A
B
8.9 Disconnect the ignition lead from the gas valve.
8.10 Undo the 2 screws securing the gas valve to the appliance
and remove the valve.
8.11 Replace in reverse order.
8.12 Check all joints for gas leaks and check operation of the
thermocouple and ignition lead.
9. Magnetic Safety Valve
9.1 Turn the gas supply off at the isolation device.
9.2 Remove the gas valve, see Section 8.
9.3 Undo the magnetic valve-retaining nut from the back of the
control valve, see Diagram 21.
9.4 Gently tap out the magnetic valve and replace with a new
unit.
9.5 Replace the retaining nut and tighten.
21
9.6 Reassemble the interrupter block and leads and secure the
thermocouple connection in the rear of the gas control.
(Do not overtighten).
9.7 Turn the gas supply on and check the entire pipework and
valve joints for any leaks.
Servicing Instructions - Replacing Parts