Expansion Vessel - Glow-worm Ultracom 38cxi Installation And Servicing

15 Replacement of Parts
15.10 Viewing Window
For access, refer to section 15.1.
GLASS
FIBRE WASHER
Refer to diagram 15.5.
Remove circlip.
Remove steel washer.
Remove glass.
Remove fibre washer.

15.11 Expansion Vessel

For access, refer to section 15.1.
Drain the boiler heating circuit as described in the
appropriate section of 15.1.
CIRCLIP
Undo the coupling at the base of the vessel, see diagram
15.6.
While holding the vessel remove the securing bolt on the top
STEEL WASHER
panel of the boiler. Remove upper support bracket.
Diagram 15.5
Fit a new gasket between the expansion vessel and coupling.
Refill, vent and pressurise the boiler.
Diagram 15.6
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