Hanging The Boiler - Worcester Greenstar CDi Compact Installation, Commissioning And Servicing Instructions

▶ Connect the system pipes using the compression nuts and olives
supplied in the Literature/Hardware pack.
1. CH flow (22mm),
2. DHW outlet (15mm),
3. Gas inlet (22mm bonded washer),
4. Domestic Cold Water inlet (15mm),
5. CH return (22mm),
▶ Fit sealing washers to service valves before hanging boiler.
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2
3
Fig. 32 Sealing washers
4.5

HANGING THE BOILER

CAUTION: Lifting the boiler
▶ Do not lift the boiler using the control panel as a hand
hold.
▶ There are two handling holes incorporated into the
inner casing left and right in the lower section of the
appliance.
NOTICE: Before hanging the boiler remove:
▶ the plastic strip fitted to pipes.
▶ the red cap from the expansion vessel.
▶ the red plug in the expansion vessel connection in the
hydraulic manifold.
Protect the floor from residual water.
The expansion vessel is secured to a bracket on the wall
frame in a "Pre-Installation" position.
Ensure that the control panel is in the closed position
before hanging the boiler.
There is no requirement to re-fit the bottom screws at
this time.
▶ Stand the boiler upright to gain access to the rear of the hydraulic
manifold.
▶ Release the wire retaining clip securing the red plastic blanking plug.
1. Before hanging the boiler:
▶ Remove the blanking plug from the expansion vessel connection at
the hydraulic manifold.
▶ Lubricate the expansion vessel "O" ring with silicone grease.
▶ Ensure that the wire retaining clip is still fully released so that the
expansion vessel pipe connection can be made into the hydraulic
manifold.
6 720 803 800 (2012/11)
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5
Fig. 33 Removing the blanking plug
Refer to figure 34
1. Ensure that the plastic protection cap is removed from the expansion
vessel connection pipe.
2. Remove the pre-plumbing connector:
▶ Unscrew the PRV outlet pipe from the pre-plumbing connector.
▶ Remove the two screws (1) holding the pre-plumbing connector in
place.
▶ Remove the temporary PRV pre-plumbing connector, and discard.
▶ Replace the two screws (1) removed earlier and tighten firmly.
▶ The boiler is mounted on the wall frame utilising the two mounting
points, indicated on figure 34, left and right at the top of the wall
frame.
1
Fig. 34 Mounting points
INSTALLATION
1.
1.
2.
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