Glow-worm Ultracom2 cxi - Manual (Page 49)

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MAINTENANCE
19.3.1 Expansion vessel
1
4
1
2
3
2
A
E
C
B
D
Key
1 Connector
2 Expansion vessel
3 Upper support bracket
4 Retaining screw
5 Gasket
Drain the boiler heating circuit as described in the appropriate
chapter "Draining".
• Remove the two screws (4).
• Undo the connector (1) at the base of the vessel.
• Remove upper support bracket (3).
• Remove the expansion vessel (2).
• Fit a new gasket between the expansion vessel and
connector.
• Refill, vent and pressurise the boiler.