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Gas And Water Connections - Bosch Worcester 7 716 192 566 Installation Instructions Manual

Wall hung rsf gas fired condensing boiler, greenstar i system diverter valve kit

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3.2

GAS AND WATER CONNECTIONS

CAUTION: MAINS SUPPLIES:
▶ ISOLATE THE MAINS GAS SUPPLY BEFORE
STARTING ANY WORK AND OBSERVE ALL RELEVANT
SAFETY PRECAUTIONS.
▶ Remove template and secure the wall mounting frame to the wall with
the fittings supplied.
▶ System pipes may be run vertically upwards behind the boiler or
below it.
See Plumbing Manifold Section on page 3.
1. CH and cylinder flow (22mm),
2. Gas inlet (22mm),
3. Cylinder return(15mm),
4. CH return (22mm)
The bonded washer supplied is for the gas connection
only.
▶ Fit sealing washers to service valves before hanging boiler.
1.
2.
Fig. 4 Sealing washers
NOTICE: PRV connector
▶ 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.
1. Pull the extended tab/lever forward and down until there is no further
travel.
Fig. 5 PRV connection in the down position
i System Diverter Valve kit 6 720 645 222 (2012/09)
3.
4.
1.
NOTICE: Protective caps/strips
▶ Caps or plastic strip fitted to pipes must be removed
before hanging the boiler.
▶ 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. 6 Hanging the boiler
NOTICE: PRV connector
▶ The pressure relief connector must be repositioned
after the boiler has been correctly mounted to the wall
mounting frame.
1. Push the lever on the pressure relief connector UP until the stop on
the inside of the handle is over the shoulder of the metal bracket to
secure in place.
Fig. 7 PRV in the up position
▶ Remove the screw from the control panel retaining bracket and lower
the control panel into the service position.
▶ Make connections to the heating system and cylinder.
Connect the gas supply to the boiler gas cock 22mm compression.
BOILER CONNECTIONS
6720643895-22.1Wo
1.
5

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