Boiler Connections - Worcester GREENSTAR 24i Junior Installation Instructions Manual

INSTALLATION
4.4

BOILER CONNECTIONS

CAUTION: ISOLATE THE MAINS GAS
SUPPLY BEFORE STARTING ANY WORK
AND OBSERVE ALL RELEVANT SAFETY
PRECAUTIONS.
GAS AND WATER CONNECTIONS:
B Remove wall mounting template and secure the wall
mounting frame to the wall with the appropriate
fixings for the boiler weight and wall type.
B System pipes may be run vertically upwards behind
the boiler or below it. See Plumbing Manifold Section
on page 20.
1. CH flow (22mm),
2. CH return (22mm),
3. Gas inlet (22mm),
4. Domestic Cold Water inlet (15mm),
5. DHW outlet (15mm)
If using the optional filling loop: 7 716 192 281 (not
supplied with the boiler) fit it before hanging the boiler
on the wall frame.
The bonded washer supplied is for the Gas
connection only.
B Fit sealing washers to service valves before hanging
boiler.
1.
2.
3.
Fig. 26 Sealing washers
NOTICE: Before hanging the boiler onto the
wall mounting frame ensure that the
pressure relief valve connection is in the
DOWN position.
This is located on the right hand side of the
wall frame at the rear.
Apply a smear of silicone lubricant to the
seal to ease connection later.
28
4.
5.
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1. Pull the extended lever forward and down until there
is no further travel.
Fig. 27 PRV connection in the down position
CAUTION: Hanging the boiler
B Remove the plastic strip fitted to pipes
before hanging the boiler.
B Hang the boiler on to the wall mounting frame by the
two brackets positioned left and right at the top rear
of the appliance.
Do not lift the appliance by the air gas manifold. There
are two handling holes incorporated into the inner
casing left and right in the lower section of the
appliance.
Fig. 28 Hanging the boiler
6 720 644 741a (2010/10)
1.
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