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8.3
Connection to the condensate trap
a
Condensate produced by the appliance is mildly
acidic (pH 3.5 - 5.0). Use protective gloves
Condensate must only be discharged in
accordance with these instructions.
The volume of condensates evacuated can reach
about 15 litres per day for a detached house. This
volume is negligible compared to the volume of
waste water discharged by a house, because the
condensates are diluted in this water.
• Refer to BS5546 and BS6798 for advice on disposal of boiler
condensate.
2
1
Key
1 Condensate pipe
2 Condensate outlet pushfi t
Make sure there is no protective plug fi tted.
Connect the condensate pipe (1) to the condensate outlet (2).
The pipe should have a fall of a least 2.5° 44mm/
metre away from the boiler.
Condensate should, if possible be discharged into the household
internal drainage system.
• In order to avoid problems from freezing in adverse weather
conditions it is strongly advised that condensate is discharged
into the household
internal
drainage system. Note some
installations may require the use of a condensate pump in
order to achieve internal discharge.
• If internal discharge is not practicable, discharge can be
allowed into the external household drains or a purpose
built soak away, refer to diagram overleaf and BS5546 or
BS6798 for reference and advice. However, the possibility
of freezing of the condensate should be considered, and all
precautions taken to prevent this. This may include the use
of trace heating. The homeowner should be notifi ed of the
possibility of freezing in severe weather conditions, and how
to overcome the problem should it occur.
• Should the condensate be drained externally then keep the
length of external pipe as short as possible. A minimum of
32mm diameter insulated pipe should be used, with a steep a
decent as possible to the termination point.
• The pipe insulation should be water, vermin and peck proof.
• Only use push-fi t plastic pipe to connect the condensate
outlet – Do not use metal pipes. Joints should be free of burrs
and obstructions such as excess adhesive to avoid resistance
to condensate fl ow.
