The cond
ensate discharge pipe from the boiler must have a continuous fall of 2.5°
and must be inserted by at least 50mm into a suitable acid resistant pipe –e.g. plastic
waste or overflow pipe. The condensate discharge pipe must have
a minimum diameter
22m
m, must have a continuous fall
and can
be installed to prevent freezing.
i) Connect into an drainage vertical pipe (at least 450mm above the inverted
pipe). Spray gun is matched in the pipe.
ii) A trap giving a water seal of at least 75mm must be incorporated into the pipe
run, there also must be an air beak upstream of trap.
iii) Connect into the sewage system of building such as a washing machine or
underground sewage pipe. The connection of washing machine must be
upwards. If the connection is downwards, then the sewage pipe should leave
an additional net, and supply a minimum water seal of 75mm and an air port
must be incorporated with the pipework, as above.
iv) Terminate into a gully, below the net but above the water level
v) Enter into a sewer
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