Buderus 600 - 11R Installation And Servicing Instructions page 19

If an external pipe run is unavoidable then the run should
be insulated with water proof insulation limited to 3 m in
length. Should this be exceeded then the pipework
diameter should be increased to 32mm and the
pipework insulated using weather proof materials.
WARNING!
Any external run must be insulated with
water proof insulation.
WARNING!
It should be noted that the connection of a condensate
pipe to a drain may be subject to local building controls.
Material for condensate
NOTE
Ensure that the condensate trap is filled
with water.
The condensate drainage pipe should be run in a
standard drain pipe material, e.g. PVC (polyvinyl
chloride), PVC-U (unplasticized polyvinyl chloride),
BS (acrylonitrile-butadienestyrene), PP (polypropylene
polyprolene) or PVC-C (cross-linked polyvinyl chloride).
The condensate drain can be attached to the syphon
(fig. 5).
Any internal pipework should be of a diameter to match
the requirements of the condensate exit pipe on the
appliance.
Internal termination to internal stack
The condensate drainage pipe should have a minimum
outside diameter of 1" with no length restriction. It should
incorporate a trap with a 75 mm condensate seal and be
connected to the stack at a point at least 450 mm above
the invert of the stack. The trap built into the boiler will
provide this 75 mm (fig. 6) condensate seal.
Subject to modifications resulting from technical improvements!
Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
Fig. 5 Condensate outlet
Boiler
Ø22 mm min.
No length restriction
75 mm min. trap
Fig. 6 Internal termination of condensate drainage pipe to
internal stack
Buderus • http://www.buderus-domestic.co.uk
Installation 1
internal soil
and vent stack
invert
19