For Condensing Boilers Only Condensate Drain - IDEAL icos HE12 Installation And Servicing

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23 CONDENSATE DRAIN
Front View
Condensate
drain
155mm
24 CONDENSATE PIPE TERMINATION CONFIGURATIONS
Note. ALL PIPE RUNS MUST BE IN ACCORDANCE WITH BS6798
1. INTERNAL TO SINK WASTE
UPSTREAM OF SINK WASTE
TRAP
2. INTERNAL TO SINK WASTE
DOWNSTREAM OF SINK
WASTE TRAP (PREFERRED
METHOD)
22
INSTALLATION
Side View
BOILER
cla7771b
BOILER
Air Break
cla9252
75mm trap
The condensate drain provided on the boiler must be
connected to a drainage point, preferably within the
building.
Ensure that the condensate trap is full of water before
commissioning the boiler. Refer to Frame 27.
The routing of the drain must be made to allow a minimum
fall of 1 in 20 away from the boiler, throughout its length.
The drainage pipework must be arranged so that
obstruction (e.g. through freezing) of external drainage pipe
does not give rise to spillage within the dwelling.
IMPORTANT. If excessive external pipework cannot be
avoided an additional siphon kit and insulation are
recommended, in order to prevent possible freezing.
All pipework and fittings in the condensate drain system
must be made of plastic. No other materials may be used.
The drain outlet on the boiler is standard 21.5mm overflow
pipe. This size must not be reduced in any part of its
length.
A plastic cap is fitted to the end of the condensate drain
adapter this must be removed before connection is made.
If external condensate pipe run is greter than 3m then pipe
must be 32mm nominal diameter. Consideration must be
given to insulating external condensate pipe runs.
Sink constitutes
air break
Sink
Open end of pipe
direct into gulley
below grating but
above water level
Ground Level
DRAIN
Open end of pipe
direct into gulley
below grating but
above water level
Ground Level
DRAIN
continued . . . .
icos -
Installation & Servicing