63
Internal Condensate Pipe Discharge Termination
Figure 2(a) –
Connection of a condensate discharge pipe downstream of a sink, basin, bath or
shower waste trap.
Note – Check manufacturer’s instructions to see if an air break is required.
Key
1
Boiler
2
Visible air break
3
75 mm trap
4
Visible air break and trap not required if there is a trap with a minimum condensate seal
of 75 mm incorporated into the boiler. In this case the 100 mm is measured to the trap
in the boiler.
5
Sink, basin, bath or shower
6
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
7
Sink lip
8
Minimum internal diameter 19 mm
9
Pipe size transition
10
Minimum internal diameter 30 mm
11
Water/weather proof insulation
12
Drain cover/leaf guard
1
2
10
5
9
4
8
3
7
6
11
12
October 2018 Issue 1.0
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