Installation manual

Installation and servicing instructions strictly reserved for qualified gas installers
21
Legend
Connection pack 1 :
A Pressure test point
1 Hanging bracket
2 Heating return pipe: angular bush to
weld Ø 22 + nut 3/4"
5 Gasket 3/4" (x3)
8 Cold water inlet + domestic hot water
outlet with isolating valve
12 Heating flow with isolating valve
13 Gas service cock
14 Gasket 1/2" (x3)
15 Gas pipe: angular bush to weld Ø 15 +
nut 1/2"
16 Cold water inlet pipe + domestic hot
water pipe:
angular bush to weld Ø 15 + nut 1/2"
17 Heating flow pipe: angular bush to weld
Ø 22 + nut 3/4"
Connection pack 2 :
4 Heating return with isolating valve
9 Nut / Pressure gauge connection
10 Gasket
11 Heating return filter
Gasket pack :
3 Cold water flow rate limiter
6 Gasket (x2)
7 Gasket (x3)
The heating return adapter is fitted with
a filter (11) that could be reached by
unscrewing the end nut. This operation
must be achieved once the heating return
shut-off taps are closed.
The test pressure will be read on a
pressure gauge (9) (not supplied) screwed
in the position of the first nut of the heating
return adapter.
Only use the genuine seals delivered
with the appliance.
Check that there is no leakage. Repair
if need be.
The pipes from the heating and domestic
hot water safety discharge
valves must not
discharge above an entrance, window or
any type of public access area.
Take the short safety discharge tube,
union nut and seal, supplied loose in
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the boiler fittings pack.
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 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.
To ease future servicing it is advisable to
use a compression type fitting to extend
the safety discharge valve tube.
Warning! Cylinder relief valve connections
should not be used for any other purpose.