Pressure on CH system. Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[citroen]

I recently got gas central heating fitted by Scottish gas.The boiler is a Worcester Greenstar 28i Junior.Could anyone give me advice on the following:-
1.The engineer told me if I bled a radiator,the system/boiler woyld lose pressure and the CH would not work until I repressurised it.Could anyone tell me how to do this and what pressure do I put it to?
2.I am needing to change a couple of tap washers.I would be turning the water off at the rising mains before I did it.Would this cause pressure to be lost or does this not affect it?
Thanks for any help.

[Steve the gas]

Hi Citroen,

1. The pressure on boiler guage should be between 1 to 1.5 bar.
This is done via the filling loop but on yours it might be a Key tap design, read the instructions in your boiler manual.

2. No it won't affect your boiler pressure, but, obviously you won't get any hot water with mains turned off.

[citroen]

Thank you very much for your reply.It has been very helpful.As to looking in the boiler manual,I think it is written for a tradesman.I do not understand what to do so I think I will get a heating engineer when it is required.

[citroen]

Thank you very much for your reply.It has been very helpful.As to seeing the manual for pressurising the boiler,I don't understand the manual so I think I'll be getting a heating engineer if it becomes necessary.