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warmhaus.com
EXTERNAL CONNECTIONS
Connection of condensate discharge pipe to external
soil and vent stack.
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 75mm
incorporated into the boiler.
5 - Soil and vent stack.
6 – Invert
7 - 450mm minimum up to three storeys
8 - Minimum internal diameter 19 mm
9 - Pipe size transition point
10 - Minimum internal diameter 30mm
11 - Water/weather proof insulation
EXTERNAL CONNECTIONS
External termination to rainwater downpipe (NB only
combined foul/rainwater drain)
1 Condensate discharge pipe from boiler
2 Pipe size transition point
3 Water/weatherproof insulation
4 43 mm 90° male/female bend
5 External rainwater pipe into foul water
6 External air break
7 Air gap
8 68 mm PVCu strap on fitting
9 Minimum internal diameter 19 mm
10 Minimum internal diameter 30 mm
11 End cut at 45°