Glow-worm Betacom2 - Manual (Page 15)

0020145065_01 - 09/12 - Glow-worm
8.2 Safety Discharge Valve
B
A
3
2
1
Key
1 Discharge pipe 15mm o.d.
2 Pressure relief valve PRV
3 Draining outlet
A PRV outlet - to outside
b Appliance drain
This must be extended, using not less than 15mm o.d. pipe,
to discharge, in a visible position, outside the building, facing
downwards, preferably over a drain.
To ease future servicing it is advisable to use a compression type
fitting to extend the safety discharge valve tube.
The pipe must have a continuous fall and be routed to a position
so that any discharge of water, possibly boiling, or steam cannot
create any danger to persons, damage to property or external
electrical components and wiring.
8.3 Connection to the condensate trap
a DANGER:
Condensate produced by the appliance is mildly acidic
(pH 3.5 - 5.0). Use protective gloves
b ATTENTION:
Condensate must only be discharged in accordance with
these instructions.
i IMPORTANT:
The volume of condensates evacuated can reach about
15 litres per day for a detached house. This volume
is negligible compared to the volume of waste water
discharged by a house, because the condensates are
diluted in this water.
• Refer to BS5546 and BS6798 for advice on disposal of boiler
condensate.
2
1
Key
1 Condensate pipe
2 Condensate outlet pushfit
• Make sure there is no protective plug fitted.
• Connect the condensate pipe (1) to the condensate outlet (2).
i IMPORTANT:
The pipe should have a fall of a least 2.5° 44mm/metre
away from the boiler.
Wherever possible, the condensate drainage pipe should be
terminated into 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 - ensuring
that condensate drains away from the boiler under gravity.
Consideration must always be given to reducing the possibility of
condensate pipes freezing and guidance must always be followed
in the current BS 6798:2009. It is recommended to insulate
external condensate pipes, any insulation must be vermin and
peck-proof.
If it is unavoidable to run and terminate the condensate internally
it is strongly advised to minimise the outside length of pipe and
be of a minimum external diameter of 32 mm. Condensate pipes
that pass through or from appliances installed in lofts, garages
and basements should be treated as external pipes. Follow
good installation practices and remove burrs from cut pipes
and observe the recommended jointing method of the pipes
and fittings. Note some installations may require the use of a
condensate pump on order to achieve internal discharge.
CONDENSATE PUMP
To be connected
to the most appropriate
discharge configuration
INSTALLATION
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