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Service Manual
Singular Combi Boiler - BTC 439002301 A (12.2021)
9. Remove four fl ue connector fi xing screws and separate from top of boiler.
Figure 123
Venting may need to be moved to make room for the fl ue connector to be
removed.
10. Remove 2 screws on exhaust duct. This only applies to older models. New
design does not have these screws.
Figure 124
11. Remove heat exchanger piping clips (x2) and separate piping from heat
exchanger.
Figure 125
Ensure gaskets remain in place with brass connector/piping to the heat
exchanger. They will be necessary for reinstallation.
12. Remove connecting clip and separate condensate hose from bottom of heat
exchanger.
Figure 126
13. Remove two screws (Item 2) on the right hand side and two screws (Item 2)
on the left hand side of the burner hood (Item1).
Figure 127
1
1
2
2
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