Glow-worm Flexicom hx - Manual (Page 22)

0020107230_04 - 12/14 - Glow-worm
INSTALLATION
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9 Condensate Connections
9.1 Condensate Drain Connection
The condensate drain connection, is positioned below the boiler
as shown in diagram 9.1. To discharge condensate to a drain,
the drain pipe should have a fall of a least 44mm/metre (2.5°)
away from the boiler.
Condensate should, if possible be discharged into the
household internal drainage system. If this is not practicable,
discharge can be allowed into the external household drains or
a purpose designed soak away, refer to diagram 9.2.
It is recommended that any external condensate drain pipe is
protected and also preferably of 32mm diameter, to prevent
freezing in adverse weather conditions.
The condensate is discharged periodically in ‘slugs’ by siphonic
action.
It is not necessary to provide air breaks or extra traps in the
discharge pipe as there is already a trap inside the boiler. Fitting
an extra trap may cause the boiler siphon to work incorrectly.
Refer to BS5546 or BS6798 for advice on disposal of boiler
condensate.
14508
Diagram 9.1