42
icos
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Installation & Servicing
SERVICING
18.
Undo the 5 retaining screws from the boiler bottom
panel.
19.
Remove the ‘S’ trap fixing bracket screw and
disconnect the ‘S’ trap. Refer to Frame 68.
66 HEAT EXCHANGER REPLACEMENT
continued .................................
20.
Undo the 2 fixing screws from the mounting brackets on the top left and top right of the heat exchanger.
21.
Remove gas valve sensing pipe (to prevent damage
when removing heat exchanger).
22.
Slide the heat exchanger and sump assembly complete
with the CH return pipe upwards to disengage the sump
spigot from the chassis and remove from the casing.
23.
Fit the new heat exchanger, re-assembling in reverse
order, replacing the gaskets or seals if any sign of
damage or deterioration is evident. To ensure a positive
flue seal is confirmed it may be necessary to remove
the worktop or adjacent cupboard to view the joint.
24.
Check the operation of the boiler. Refer to Frame 52.
SER
VICING
20
20
21
19
18
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19/02/2008, 13:08
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Содержание HE30
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