Glow-worm Ultracom hxi - Manual (Page 20)

0020107233_00 - 06/11 - Glow-worm
INSTALLATION
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Gas/Water & Condensate Connection
8.1 Gas Connection
Before connection check the supply of local gas.
Refer to diagram 8.1, the gas supply can be connected from
below or through the wall at the rear of the boiler.
The whole of the gas installation, including the meter, should
be inspected, tested for tightness and purged in accordance
with the current issue of BS6891 and in IE the current edition
of I.S.813 “Domestic Gas Installations”.
8.2 Water Connections
Provision is made for the water connections to be made from
above the boiler, see diagram 8.2.
Flush out the heating systems before connecting to the boiler,
refer to section 5.
8.3 Condensate Trap and Siphonic Drain
Connection
The condensate drain, see diagram 8.1, is suitable for use
with standard “Push fit” overflow pipe and couplings. DO NOT
use adhesive when connecting to the spigot. The drain pipe
should be non corrosive plastic.
IMPoRTanT: Please remove spigot bung before fitting
condensate drain connection.
The condensate drain pipe should have a fall of at least
2.5 o 44mm/metre away from the boiler and 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 8.3.
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 75mm high 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.
13504
Diagram 8.2
13505
Diagram 8.1