GAS AND WATER CONNECTIONS:
Remove template and secure the wall
mounting plate to the wall with the fixings
supplied.
• If there is greater than 600mm clearance
below the appliance it is possible to fit the flow
and return pipes, supplied, with the boiler
installed on the wall.
If clearance is less than 600mm below
the appliance it may be necessary to fit
the flow and return pipes before hanging
the appliance.
A - flow (22mm)
B - return (22mm)
C - Gas inlet (22mm)
NOTE: The boiler is best lifted using the
handling holes either side of the unit. Do not
lift the boiler by the air gas manifold or control
box.
System pipes may be run vertically upwards
behind the boiler or below it.
NOTE: If pipes require reducing in length this
is best done before they are fitted to the
boiler.
Lift the boiler onto the wall plate and level
using the feet (D) at the bottom rear of the
boiler casing.
Fit retaining screws through the boiler frame
(E).
Make connections to the heating system
pipes.
Connect the gas supply to the boiler gas
cock 22mm compression fitting (pipe not
supplied).
BOILER CONNECTIONS
CAUTION: ISOLATE TH E MAI NS GAS
SUPPLY BEFORE STARTING ANY WORK
AND OBSERVE ALL RELEVANT SAFETY
PRECAUTIONS.
22mm Ø
22mm Ø
22mm Ø (Not supplied)
5mm
Pipes in alternative
position
A
B
A
B
D
E
C
E
Handling Holes
Do not lift by the
air gas manifold
Condensate outlet 112mm
A, B and C 18mm
CAUTION: Caps fitted to pipes must be
removed before hanging the boiler.
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR Ri
8 716 115 168a (06/2008)
19
BOILER CONNECTIONS
INS
T
A
L
L
A
T
IO
N
