Boiler Connections - Worcester GREENSTAR 12i Instruction Manual

22mm 22mm bonded washer
1
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 12i/24i System
8 716 115 167b (03/2009)
Do not lift by the
3
air gas manifold.
A
22mm
A
B
2 & 4
Handling
Hole
B
C

BOILER CONNECTIONS

IMPORTANT: IF FITTING OPTIONAL
INTEGRAL DIVERTER VALVE
Disregard this and the following page and
refer to the correct version for installing
t he int egral divert er valve in t he
ADDITIONAL INFORMATION section at the
back of this book.
CAUTION: ISOLATE TH E MAI NS GAS
SUPPLY BEFORE STARTING ANY WORK
AND OBSERVE ALL RELEVANT SAFETY
PRECAUTIONS.
GAS AND WATER CONNECTIONS:
Remove template and secure the wall mounting
frame to the wall with the fixings supplied.
System pipes may be run vertically upwards
behind the boiler or below it. See Plumbing
Manifold Section on page 16.
A - Flow (22mm), B - Return (22mm),
C - Gas inlet (22mm)
1. Fit sealing washers to service valves
before hanging boiler.
IMPORTANT:
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.
2. Pull the extended tab/lever forward and
down until there is no further travel.
2
3. 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.
IMPORTANT:
The pressure relief connector must be
repositioned after the boiler has been correctly
mounted to the wall mounting frame.
4. 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.
4
Stop in
locked
position
BOILER CONNECTIONS
23