Prepare for operation
7
Greenstar 1000 – 6721835944 (2023/08)
3.2 System Gassing
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.
Is your system pressure constantly increasing even
when the boiler is off for extended periods of time?
NO
NO
NO
YES
YES
YES
Is your system pressure regularly
dropping (i.e. you constantly
have to top up your boilers pressure)
Can you confirm that the filling
link is not stuck open/passing
water in any way?
Does system pressure
increase when the
boiler is on?
Does the system pressure increase to
the high pressure red zone on the
pressure gauge?
Does the problem persist?
Contact
a
service
engineer
NO
YES
Your
boiler
is
fine
0010036321-001
NO
Your
boiler
is
fine
YES
Contact
a
service
engineer
NO
Your
boiler
is
fine
YES
Contact
a
service
engineer
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