22
INSTALLATION
ESPRIT 2 -
Installation and Servicing
22 CONDENSATE DRAIN
Before mounting the boiler on the wall, the condensate
drain (provided in the h/ware pack) must be connected
from the boiler ‘S’ trap to a drainage point, preferably
within the building.
Ensure that the condensate trap is full of water before
commissioning the boiler . Refer to Frame 26.
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 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.
If external condensate pipe run is greater than 3m then
pipe must be 32mm nominal diameter. Consideration
should be given to insulating external condensate pipe
runs.
1. INTERNAL TO SINK WASTE
UPSTREAM OF SINK WASTE
TRAP
2. INTERNAL TO SINK WASTE
DOWNSTREAM OF SINK
WASTE TRAP (PREFERRED
METHOD)
23 CONDENSATE PIPE TERMINATION CONFIGURATIONS
continued . . . .
cla9252
75mm trap
DRAIN
Sink
Ground Level
Open end of pipe
direct into gulley
below grating but
above water level
BOILER
Air Break
Notes: ALL EXTERNAL PIPE RUNS MUST BE IN ACCORDANCE WITH BS6798
BOILER
cla7771a
Sink constitutes
air break
DRAIN
Ground Level
Open end of pipe
direct into gulley
below grating but
above water level
INST
ALLA
TION
206091-1.pmd
26/05/2010, 16:08
22
