Glow-worm Flexicom 18sx Installation & Service Guide

Supplied By www.heating spares.co Tel. 0161 620 6677
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14 Replacement of Parts
14.17 Pump (head only)
For access, refer to section 14.1.
Refer to section 14.2 and drain the boiler heating circuit.
Refer to diagram 14.6.
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 and check for leaks.
14.18 Safety Discharge Valve
For access, refer to section 14.1.
Refer to section 14.2 and drain the boiler heating circuit.
Refer to diagram 14.7.
Undo the safety discharge valve union and remove from the
pipework.
Remove the retaining clip and withdraw the safety discharge
valve.
Fit new ‘O’ ring.
Refill, vent and pressurise the boiler and check for leaks.
13067
PUMP HEAD
CABLE COVER
CAP HEAD
SCREWS (4)
Diagram 14.6
SAFETY
DISCHARGE
VALVE
SECURING
CLIP
Diagram 14.7
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Glow-worm Flexicom 18sx Specifications

General

Model	Flexicom 18sx
Category	Boiler
Mounting	Wall Mounted
Output	18 kW
Fuel Type	Natural Gas
ErP Heating Efficiency Class	A
Central Heating Max Pressure	3 bar
Flue Options	Horizontal or vertical