Supplied By www.heating spares.co Tel. 0161 620 6677
20
8 Safety Discharge Valve & Condensate Connections
Diagram 8.1
8.1 Safety Discharge Valve
The pipe from the safety discharge valve must not discharge
above an entrance, window or any type of public access area.
Take the safety discharge pipe, supplied in the pipe pack and
the union nut and seal, supplied in the loose items pack and fi t
as shown in diagram 8.1.
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.
The pipe must have a continuous fall and be routed to a posi-
tion 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.
To ease future servicing it is advisable to use a compression
type fi tting to extend the safety discharge valve tube.
8.2 Condensate Drain Connection
The condensate drain connection is at the rear of the boiler,
see diagram 7.1. A fl exible condensate outlet pipe is supplied
fi tted to the boiler and should be used to fi t onto the drain con-
nection, to discharge condensate to a drain. The drain pipe
22mm to 25mm OD. non corrosive plastic pipe should have a
fall of at least 2.5° away from the boiler.
Condensate should, if possible be discharged into the house-
hold internal drainage system. If this is not practicable, dis-
charge can be allowed into the external household drains or a
purpose designed soak away, refer to diagram 8.2.
It is recommended that any external condensate drain pipe is
insulated and also preferably of 32mm diameter, to prevent
freezing in adverse weather conditions.
It is not necessary to provide air breaks or extra traps in the
discharge pipe as there is already a trap inside the boiler.
Refer to BS5546 or BS6798 for advice on disposal of boiler
condensate.
To Next Page
Loading...
