8.1 Gas Connection
The gas supply can be connected from below or through the wall
at the rear of the boiler, see diagram 8.1 for position.
Refer also to Section 1.7.
Make the gas supply connection to the gas service cock. Slacken
or remove the clip, as desired, whilst making the connection. Do not
subject the gas service cock to heat.
8.2 Water Connections
Provision is made for the water connections to be made from below
or through an internal wall at the rear of the boiler, see diagram 8.1
for position.
Provision is made for the domestic hot water outlet and heating flow
and return pipes to be connected from above, if desired, passing
down either side of the boiler, see diagram 8.2 for clearances. Take
care that any pipework connected from above, within the boiler
mounting frame will clear the expansion vessels.
Flush out the domestic hot water and the heating systems before
connecting to the boiler.
Make the connections to the domestic hot water outlet by straight
connector and heating systems by way of the isolating valves, see
diagram 8.1.
Slacken or remove the clips, as desired, while making the
connections. Do not subject any of the isolating valves to heat.
Make sure that the drain points on the isolating valves are positioned
towards the front of the boiler, also that the drain and operating
screw heads are accessible.
8.3 Safety Valve Discharge
WARNING. It must not discharge above an entrance or window or
any type of public access area.
A short discharge pipe is supplied loose with the boiler, which when
fitted to the safety valve, will end below the boiler at the mark
between the cold water inlet and the heating flow, for position and
dimension see diagram 8.1.
This must be extended, using not less than 15mm od pipe, to
discharge, in a visible position, outside the building, facing downward,
preferably over a drain.
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.
Note. To make future servicing easier it is advisable to use a
compression type fitting to extend the discharge pipe.
221474C
Supplied By www.heating spares.co Tel. 0161 620 6677
8 Gas and Water Connections
The pipe must have a continuous
'NOTCH' MARKING POSITION OF
SAFETY VALVE DISCHARGE
63
HEATING
DOMESTIC
FLOW
COLD WATER
SUPPLY IN
SLOT (CLOSED)
20mm
EXPANSION
VESSEL POSITION
140
80
90
DOMESTIC
WATER
NOTE:
Keep any pipework
clear of shaded area
18
BOILER
MOUNTING
FRAME
DOMESTIC
HEATING
HOT WATER
RETURN
OUT
GAS
SERVICE
COCK
SLOT (CLOSED)
DRAIN
Diagram 8.1
POINT
46mm
320
CENTRAL
HEATING
Diagram 8.2
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