Fitting The Appliance/Boiler Connections - Worcester 29CDi Classic Installation, Commissioning And Servicing Instructions

4.4

FITTING THE APPLIANCE/BOILER CONNECTIONS

CAUTION: Isolate the mains gas supply before starting
any work and observe all relevant safety precautions.
GAS AND WATER CONNECTIONS:
▶ System pipes may be run vertically upwards behind the boiler or
below it. See Plumbing Manifold Section on page 17.
A - CH flow (22mm),
B - CH return (22mm),
C - Gas inlet (22mm),
D - DHW outlet (15mm),
E - Cold water inlet (15mm)
▶ Fit sealing washers to service valves before hanging boiler.
▶ Remove dust caps from connections on boiler.
15mm 15mm
22mm 22mm
22mm
Fig. 30
NOTICE: Before hanging the boiler on the wall mounting
plate ensure 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.
▶ The pressure relief connector must be repositioned
after the boiler has been correctly mounted to the
wall plate.
Refer to action step 5.
1. Pull the extended tab/lever forward and down until there is no further
travel.
2. Hang the boiler on to the hanging bracket. The lugs pass through the
rectangular holes in the boiler back panel.
Take care not to disturb the washers on the connections.
It is recommended the lifting operation is carried out by
2 people, observing all precautions for safe lifting of
heavy objects
Do not lift by the top case panel. There are two handling holes
incorporated into the inner casing left and right in the lower section of
the appliance.
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A C B
22mm 22mm 22mm
D E
15mm 15mm
6720647361-53.1Wo
Do not lift by the
top case panel.
Handling
hole
3.
1.
Fig. 31
3. Lower the control panel into the service position by pulling the white
plastic clip down.
4. Make connections between the boiler and the pre-plumbing manifold
and the pre-plumbing manifold and the system pipes.
▶ Connect the gas supply to the boiler gas cock 22mm compression.
▶ Connect cold water in and DHW out to the boiler's 15mm
compression connectors.
▶ Connect the CH flow and CH return pipes to the boiler's 22mm
compression connections.
▶ Connect the condensate discharge pipe work to the boiler's
condensate outlet connections.
5. 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.
INSTALLATION
2.
4.
5.
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