System Gassing - Worcester Greenstar 1000 User Instructions

3.2

System Gassing

Does system pressure
increase when the
boiler is on?
NO
Is your system pressure regularly
dropping (i.e. you constantly
have to top up your boilers pressure)
NO
Your
boiler
is
fine
Fig. 2 Gassing flow chart
Your installer should have informed you where to find the filling system
and instructed you in its use.
NOTICE
System fill method
▶ You must disconnect the external filling loop after re-pressurisation,
to comply with the Water Authority regulations.
Greenstar 1000 – 6721835944 (2023/08)
Is your system pressure constantly increasing even
when the boiler is off for extended periods of time?
NO
Does the system pressure increase to
the high pressure red zone on the
YES
Contact
a
service
engineer
Does the problem persist?
Your
boiler
NO
is
fine
YES
Can you confirm that the filling
link is not stuck open/passing
water in any way?
YES
pressure gauge?
NO
YES
Your
Contact
boiler
a
is service
fine
engineer
YES
Prepare for operation
YES
NO
Contact
a
service
engineer
0010036321-001
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