Worcester GREENSTAR Ri Installation And Servicing Instructions page 15

CONDENSATE SOAK AWAY
• The condensate drainage pipe may be run above or
below the ground to the soak away.
• The examples shown on this page run above ground.
• The soak away must use a 100mm Ø plastic tube with
two rows of three 12 mm holes on 25 mm centres and
50 mm from the bottom of the tube. The holes must
face away from the house.
• The tube must be surrounded by at least 100 mm of
limestone chippings to a depth of 400 mm.
Minimum hole size for the condensate soak
away must be 400mm deep by 300mmØ .
In situations where there are likely to be extremes of
temperature or exposure, the use of a proprietary trace-
heating system for external pipe work, incorporating an
external frost thermostat, should be considered. If such
a system is used, the requirement to use 32mm pipe
does not apply, however all other guidance above, and
the instructions for the trace heating system, should be
closely followed.
NOTICE: Unheated internal areas.
B Internal pipe runs in unheated areas such
as lofts, basements and garages should
be treated as external runs.
1
500mm min.
13
14
9
11
12
Fig. 11 Soak away
6 720 644 744a (2010/10)
Fig. 12 Condensate pump to external disposal
9
10
25mm min.
400mm
min.
10
14
1
7
PRE-INSTALLATION
13
25mm min.
15