Technical data

20 Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
Buderus • http://www.buderus-domestic.co.uk Subject to modifications resulting from technical improvements!
Installation1
External termination via internal branch (e.g. sink
waste)
The condensate drainage pipe should have a minimum
outside diameter of 1" with no length restriction. The
connection should preferably be made downstream of
the sink waste trap. If the connection is only possible
upstream, then the air break is needed between the two
traps. This is normally provided by the sink waste pipe
(see fig. 7 and 8).
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. 9 for information.
Fig. 7 External termination of condensate drainage pipe
via internal discharge branch (e.g. sink waste) and
condensate syphon
75 mm min. trap
No length restriction
Ø22 mm min.
Open end of pipe
direct into gully,
below ground but
above water level
Boiler
Sink
Fig. 8 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
75 mm min. trap
Ø22 mm min.
Sink
Fig. 9 External termination of condensate drainage pipe to
absorption point
Ø100 mm min.
plastic tube
bottom of
tube sealed
limestone
cladding
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.
Ø22 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 conditions. If this is likely to
occur, the use of a syphon trap is
recommended.