Glow-worm sxi and Gas Valve - Manual (Page 42)

42 0020015347-03
Diagram 14.12
SAFETY
DISCHARGE
VALVE
11694
14 Replacement of Parts
14.13 Flue Hood
For access, refer to section 14.1.
Refer to diagram 14.10.
Remove heat exchanger as per section 14.12.
Remove the two securing screws and pull the flue hood down
and away from the flue hood bracket and flue elbow, see
diagram 14.10.
14.14 Pump (head only)
For access, refer to section 14.1.
Refer to section 12.8 and drain the boiler heating circuit.
Refer to diagram 14.11.
Remove the four cap head screws.
Carefully remove the pump head together with cable, do not
strain cable.
Support the pump head, unscrew cable cover at the side of
pump head and remove.
Disconnect wiring from pump head.
Reconnect wiring to new pump head and fit cover.
Fit the new pump head with ‘O’ ring.
Refill, vent and pressurise the boiler.
Check for leaks.
14.15 Safety Discharge Valve
For access, refer to section 14.1.
Refer to section 12.8 and drain the boiler heating circuit.
Refer to diagram 14.12.
Undo the safety discharge valve union and remove from the
pipework.
Remove the securing clip and withdraw the safety discharge
valve.
Refill, vent and pressurise the boiler.
Check for leaks.
Diagram 14.10
FLUE HOOD
SECURING
SCREWS
11602
Diagram 14.11 PUMP HEAD
CAP HEAD
SCREW (4) OUTLET
CONNECTOR CABLE
COVER
11507