Condensate Pipework - Bosch Worcester Greenstar CDi Conventional Series Instruction Manual

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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR 30COi/40CDI Conven\1onal
6 720 614 556a (2007/07)
Bosch Group
CONDENSATE PIPEWORK
CONDENSATE PIPEWORK:
The condensate pipe must be a minimum of
22mm0 plastic pipe.
The condensate pipework must fall at least
50 mm per metre towards the outlet and
should take the shortest practicable route.
The pipework must follow one of the options
shown opposite into an internal serviceable-
trap (min. 75 mm) such as a sink/washing
machine) and discharge direct into a vent
stack (E) min. 450 mm above pipe invert or
into a gulley (D) below ground but above
the water level.
Wherever possible the condensate dis-
charge pipe work should be routed and ter-
minated internally. Should this not be possi-
ble, and the only available route is external,
the following conditions should be
observed:
Pipe work length should be kept to a
minimum and the route as vertical as
possible.
Where pipe work could be subjected to
extreme cold or wind chill, a weather
proof insulation should be used.
Alternatively the condensate pipework
could be increased to a minimum 32 mm
without the requirement to insulate.
IMPORTANT: Ensure there are no block-
ages in the pipe run.
Internal sink/washing machine drain
2 Internal waste drainage system
3 Soil/vent stack
4 External drainage system
5 External condensate absorption point
A - Condensate from boiler
B- Sink
C- 22 mm 0 plastic condensate pipe
D- Gulley
E - Internal soil and vent stack
F - Serviceable waste trap (75 mm min)
G- 300 mm x 100 mm 0 sealed plastic tube
H - Ground level
J -
Drainage holes 50 mm from base of tube
(12 mm 0 at 25 mm centres) facing away
from building
K - Limestone chippings
CONDENSATE PIPEWORK