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Worcester-Bosch GREENSPRING CWi47 Manual

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Installation instructions
GREENSPRING CWi47 – 6 720 646 322 (2015/04)
6.7.1 Internal connections
In order to minimise risk of freezing during prolonged cold
spells, the following methods of installing condensate drainage
pipe should be adopted, in order of priority.
Wherever possible, the condensate drainage pipe should be
routed and terminated so that the condensate drains away
from the water heater under gravity to a suitable internal foul
water discharge point such as an internal soil and vent stack. A
suitable permanent connection to the foul waste pipe should be
used.
Fig. 28 Disposal to soil vent stack
Alternatively if the first option is not possible an internal
kitchen or bathroom waste pipe, washing machine waste pipe
etc. can be used.
Ensure that the condensate drain pipe is connected “down
stream” of the waste trap.
Fig. 29 Disposal to a waste pipe
Condensate pump
Where “gravity discharge” to an internal termination is not
physically possible, or where very long internal runs would be
required to reach a suitable discharge point, condensate
should be removed using a proprietary condensate pump, of a
specification recommended by the water heater or condensate
pump manufacturer.
The pump outlet pipe should discharge to a suitable internal
foul water discharge point such as an internal soil and vent
stack, internal kitchen or bathroom waste pipe, washing
machine waste pipe etc. A suitable permanent connection to
the foul waste pipe should be used.
Fig. 30 Condensate pump disposal
6.7.2 External connections
32mm
8
6720646322-09.1V
6720646322-30.1V
NOTICE: Freezing conditions
▶ Pipe work length should be kept to a
minimum and the route as vertical as
possible.
▶ Weather proof insulation must be used.
NOTICE: Condensate waste
▶ Care should be taken when siting a soak-
away to avoid obstructing existing
services.
32mm
8
6720646322-11.1V
… 23 …


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