64
Internal Condensate Pipe Discharge Termination
Figure 3 – Connection of a condensate pump - typical method (NB manufacturer’s detailed
instructions should be followed).
Note – Any external pipe work should be insulated, pipe cut at 45 degrees and a drain/ leaf
Key
1 Condensate discharge from boiler
2 Condensate pump
3 Visible air break at plug hole
4
5 75mm sink waste trap
2
5
4
3
Key
1 Boiler
2 Visible air break at plug hole
3 75 mm sink, basin, bath or shower
waste trap
4 Sink, basin, bath or shower with
5 Open end of condensate discharge
pipe direct into gully 25 mm min below
grating but above water level; end cut
at 45 °
Note – the maximum external
condensate discharge length is 3 metres
6 Minimum internal diameter 19 mm
7 Pipe size transition
8 Minimum internal diameter 30 mm
9 Water/weather proof insulation
10 Fit drain cover/leaf guard
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1
2
3
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