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16.11 (F28e ONLY) Expansion Vessel
For access and to hinge Rhd. side panel, refer to section 16.1.
Drain the boiler heating circuit, see section 13.8.
Drain the boiler hot water circuit, see section 13.9.
Remove Plate to Plate heat exchanger, refer to section 16.9.
Disengage flue adaptor pipe, see diagram 8.6 and remove flue
outlet pipe.
Undo coupling and remove cold water inlet pipe, see diagram
16.6.
Undo coupling on domestic hot water outlet pipe, see diagram
13.5.
Remove Pump head, refer to section 16.10, in order to undo
coupling at the rear of the three way valve and swing pipe clear
of expansion vessel, see diagram 16.7.
Refer to diagram 16.8.
Undo the coupling at the base of the vessel.
Remove the securing screws on the top panel of the boiler.
Remove support bracket.
Draw the vessel up and forward carefully easing the plate to
plate pipes clear and remove.
Fit the replacement unit.
Fit a new gasket between the expansion vessel and coupling.
Refill, vent and pressurise the boiler.
Check for leaks.
SECURING
SCREW (2)
(F28e ONLY)
2000225242A
16 Replacement of Parts
16.10 Expansion Vessel
For access and to hinge R/H side panel, refer to section 16.1.
Drain the boiler heating circuit, see section 13.8.
Drain the boiler hot water circuit, see section 13.9.
Refer to diagram 16.8.
Undo the coupling at the base of the vessel.
Remove the retaining clip securing the expansion vessel supply
pipe, pull out the supply pipe.
Remove the securing screw to remove the bottom support
bracket.
Remove the securing bolt on the top panel of the boiler. Remove
support bracket.
Remove the vessel.
Fit the replacement unit.
Fit a new gasket between the expansion vessel and coupling.
Refill, vent and pressurise the boiler.
Check for leaks.
SUPPORT
BRACKET
EXPANSION
VESSEL
COUPLING
(F28e SB ONLY)
Diagram 16.8
50
TOP
BOLT
SUPPORT
BRACKET
EXPANSION
VESSEL
COUPLING
EXPANSION
VESSEL PIPE
RETAINING
CLIP
Diagram 16.8a
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