Worcester Greenstar 12i System Instruction Manual page 23

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BOILER CONNECTIONS
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I'R[CI\UTO\;S
GAS AND WATER CONNECTIONS:
A· Aow (22mm), B ·Return (22mm),
C · Gas inlet (22mm).
• 5. Lower
the
control panel into the setvice
position by removing the screw (0) from the
retaining bracket.
• 6 . Make connections to the heating system.
,. Connect
the
gas supply to
the
boiler gas
cock 22mm oompmssion.
• 7. Connect the expansion vessel flexible
pipe
to the hydraulic manifofd situated left o f
the pump . lt is necessary to remove and
di:&card the orange plastioc blanking plug (E)
from
the
connection at the hydraulic
m.:mifold
befOre
&ecuriog
the
expansion
vessel flexible pipe (f) in place
with
the wire
retaining
clip (G ).
• 8. Connect the pressure relief drain pipe to
t5mm compression joint (H) using
the
nut
and olive supplied
in
the hardwate literature
pack.
BOILER CONN ECTIONS