Glow-worm swift flow 100e Installation Instructions Manual page 17

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 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 downwards, preferably over a drain
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.
Note. To ease future servicing it is advisable to use a
compression type fitting to extend the discharge pipe.
8 G a s a n d W a t e r C o n n e c t i o n s
'NOTCH' MARKING POSITION OF
SAFETY VALVE DISCHARGE
63
DOMESTIC CENTRAL
COLD HEATING
WATER FLOW
SUPPLY IN
SLOT (CLOSED)
20mm
EXPANSION
VESSEL
115mm
POSITION
120mm
DOMESTIC
WATER
NOTE:
KEEP ANY PIPEWORK
CLEAR OF SHADED AREA
17
BOILER
MOUNTING
FRAME
DOMESTIC
CENTRAL
HOT
HEATING
WATER
RETURN
GAS
OUT
SERVICE
COCK
SLOT
DRAIN POINT
(CLOSED)
Diagram 8.1
46mm
MINI
320mm
EXPANSION
VESSEL
CENTRAL
HEATING
Diagram 8.2
221141C