Installation
1
14
Installation and maintenance instructions for Buderus 500 - 24/S • 08/2006
Buderus • http://www.buderus-domestic.co.uk
Subject to modifications resulting from technical improvements!
Condensate absorption point
The condensate drainage pipe should have a minimum
outside diameter of 1" and the external pipe length should not
be more than 3 m. The condensate absorption point should be
sited in a convenient position as close as possible to the boiler
but not in the vicinity of other services. See fig. 11 for informa-
tion.
fig. 10 External termination of condensate drainage pipe via
internal discharge branch (e.g. sink waste – proprietary
fitting) and condensate syphon
No length restriction
Boiler
Open end of pipe
direct into gully,
below ground but
above water level
Ø21.5 mm min.
Sink
fig. 11 External termination of condensate drainage pipe to
absorption point
Ø100 mm min.
plastic tube
bottom of
tube sealed
limestone
chippings
hole depth
400 mm min.
300 mm min.
25 mm min.
Ground
(either/or)
Two rows of three
12 mm holes at 25 mm centres
50 mm from bottom of tube and
facing away from house
1000 mm min.
Ø21.5 mm min.
External length of
pipe 3m max.
NOTE
When discharging condensate to an outside
drain caution must be taken to ensure
blockage cannot occur during freezing condi-
tions. If this is likely to occur, the use of a
syphon trap is recommended.
