6 720 610 597 GB (03.02)
Installation
15
Condensate Termination and Route
The condensate connection on the Greenstar appli-
ances is in 22 mm plastic. The pipe should be extended
and run away from the appliance with a constant fall of
2.5 ° or 40 mm in every metre.
The condensate pipe can terminate into any of four
areas:
Fig. 11
Whilst all of the above methods are acceptable it is
always the best practice to terminate the condense
pipe via an internal waste system.This will eliminate the
need for any external condensate pipe runs which can
be susceptible to freezing in extreme weather.
Fig. 12 Position of the condensate drain
External condensate pipework
All Greenstar condensing boilers have within a
syphonic condensate trap. Rather than the condensate
constantly dripping into the discharge pipe, the con-
densate is collected into a trap which releases it in
100 ml quantities.
This will help prevent freezing occurring.
If there is no alternative and the condensate pipe has to
be externally run, the following should be considered:
• The pipe run should take the shortest practical route.
• The pipework should be insulated with weather
resistant insulation.
• The pipe should terminate as close as possible to the
ground or drain, whilst still allowing the condensate
to safely disperse.This would prevent wind blowing
up the pipe.
• The pipework should be installed with the minimum
of horizontal runs and with a downward slope of at
least 2.5 °.
3.7
Fitting the appliance
B
Remove packing, taking care to observe the instruc-
tions on the packing.
B
Lie the boiler on its back.
Removing the outer case
B
Remove retaining screw on left hand side (1.).
B
Press both catch levers backwards (2.).
Boiler
Boiler
Sink
Ø 22 min.
Ø 22 min.
Ø 22 min.
Ø 22 min.
Siphon
Siphon
75 min. trap
Invert
No length
restriction
No length
restriction
No length
restriction
Internal soil
and vent stack
The gradient of the discharge pipe
should be 2.5
°
(40 mm/m) minimum
The gradient of the discharge pipe
should be 2.5
°
(40 mm/m) minimum
The gradient of the discharge pipe
should be 2.5
°
(40 mm/m) minimum
An internal waste system
An external waste system
The rainwater system
An external purpose made soakaway
The gradient of the discharge pipe should be
2.5
°
(40 mm/m) minimum
Use waterproof pipe work
insulation in very exposed
positions
External length of
pipe 2m min.
Open end of pipe
direct into gully,
below ground but
above water level.
Open end of pipe
direct into gully,
below ground but
above water level
Open end of pipe direct
into gully, below ground
but above water level
75 min. trap
450 min.
Siphon
75 min. trap
Boiler
6 720 610 596 -03.1O
Boiler
Sink
6 720 610 602 - 03.1O
Benchmark: For optimum perform-
ance after installation, this boiler and its
associated central heating system must
be flushed in accordance with the
guidelines given in BS5793:1992
“Treatment of water in domestic hot wa-
ter central heating systems”.
i
The outer case is secured against unau-
thorised removal by a retaining bracket
(electrical safety) at the bottom left.
Always secure the outer case with this
bracket again after refitting.
Summary of Contents for GREENSTAR HE combi Series
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