69
External Connections
Figure 5 – External termination to rainwater downpipe (NB only combined foul/rainwater
drain)
Key
1 Condensate discharge pipe from boiler
2 Pipe size transition point
3 Water/weather proof insulation
4 43mm 90° male/female bend
5 External rain water pipe into foul water
6 External air break
7 Air gap
8
9 Minimum internal diameter 19mm
10 Minimum internal diameter 30mm
11 End cut at 45°
1
2
10
5
9
4
8
3
7
6
11
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