8.2 Condensate Discharge Connection
All condensing boilers generate condensate water discharge. The
amount of the condensate water depends on the working conditions of your
boiler. This can be up to 1.7 litres condensate water an hour.
The condensation water must be connected to a drain with the help of a plastic hose which is connected
to the end of condensate trap.
The use of standard discharge hose is recommended for connection to the
drain.
The addition of 1 cable connection on the hose should be made for fixing.
If drain hose will be connected to drain outside of the building, insulation should be provided to prevent
freeze of hose.
The condensate discharge hose and interconnection parts must be made of plastic material.
All horizontal parts must be connected at least 2,5
° downwards incline to ensure to a good flow. It can
not rise at any point along its length.
Condensate discharge must be installed correctly, otherwise operation of the boiler will
be affected negatively.
It is recommended to make condensate discharge internally into the household drainage
system. If it is not possible, needed precaution must be taken to prevent freezing.
Ensure the discharge of condensate complies with any national or local regulations (BS 6798).
Condensate discharge pipe must be PVC, PVC-U, PVC-C or PP. Metal pipe work is not suitable.
Figure 16. Connection to an internal soil-vent pipe, external termination with sink, to drain or gully
A boiler discharge pump must be used if there is no drain or sink
nearby that the condensate can be discharged into. Condensate
discharge pump is not standard part of the boiler. Further
information must be followed supplied with the pump.
Figure 17. Condensate discharge pump connections
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