Supplied By www.heating spares.co Tel. 0161 620 6677
19
Diagram 8.1
14527
8.1 Condensate Trap Connection
A flexible condensate outlet pipe is supplied and should be
used to couple the condensate trap to a 22mm to 25mm O.D.
non corrosive plastic pipe (overflow pipe), see diagram 8.1.
NOTE:
the pipe should have a fall of a least 2.5
o
44mm/metre
away from the boiler.
Condensate should, if possible be discharged into the
household internal drainage system. If this is not practicable,
discharge can be allowed into the external household drains
or a purpose designed soak away, refer to diagram 8.3.
It is recommended that any external condensate drain pipe is
insulated and also preferably of 32mm diameter, to prevent
freezing in adverse weather conditions.
It is not necessary to provide air breaks or extra traps in the
discharge pipe as there is already a 75mm high trap inside
the boiler. Fitting an extra trap may cause the boiler siphon to
work incorrectly.
Refer to BS5546 or BS6798 for advice on disposal of boiler
condensate.
8.2 System Pipes Connection
Plumb gas and water system pipe work up to the isolation
valves using olives supplied, see diagram 8.2.
Do not subject isolation valves to heat.
The whole of the gas installation, including the meter, should
be inspected, tested for tightness and purged in accordance
with the current issue of BS6891 and in IE the current edition
of I.S.813 “Domestic Gas Installations”.
8 System Pipes and Condensate Connections
14552
Diagram 8.2
ISOLATION VALVES SHOWN CLOSED
CONDENSATE
OUTLET PIPE
CONDENSATE
TRAP
