Potterton Heatmax Combi HE Range Installation & Service Instructions Manual page 18

Boiler
iv) Termination to a purpose made soakaway
Boiler
18
© Baxi Heating UK Ltd 2012
iii) Termination to a drain or gully
Pipe must terminate above
water level but below
surrounding surface. Cut
end at 45°
Further specific requirements for soakaway
design are referred to in BS 6798.
Holes in the soak-away must
face away from the building
7.0 Site Requirements
7.7
11. When discharging condensate into a soil stack or waste
pipe the effects of existing plumbing must be considered. If
soil pipes or waste pipes are subjected to internal pressure
fluctuations when WC's are flushed or sinks emptied then
back-pressure may force water out of the boiler trap and
cause appliance lockout.
500mm min
Condensate Drain (cont.)