I have just moved into a house which has the above unit fitted. According to the manual, it's a "Combined Primary Storage Unit (CPSU) for Domestic Hot Water Supply and Central Heating". A little different to a standard combi-boiler, given that it has a thermal store.
The system pressure on the boiler has been gradually dropping, and it's now sitting pretty much on zero - it does still seem to be working fine though.
The boiler doesn't have a standard filling loop, it's connected permanently into the mains water supply via a pressure limiting device.
Given that there's no filling loop - how would I raise the pressure of the system back up to 1.0 bar? I wonder if something has failed for it to get so low...
The service manual is here (I have the sealed version):
http://www.gledhill-spares.net/documents/GS2000-Iss8.pdf
I'm sure people here will be able to make more sense out of it than me!
Thanks.
The system pressure on the boiler has been gradually dropping, and it's now sitting pretty much on zero - it does still seem to be working fine though.
The boiler doesn't have a standard filling loop, it's connected permanently into the mains water supply via a pressure limiting device.
Given that there's no filling loop - how would I raise the pressure of the system back up to 1.0 bar? I wonder if something has failed for it to get so low...
The service manual is here (I have the sealed version):
http://www.gledhill-spares.net/documents/GS2000-Iss8.pdf
I'm sure people here will be able to make more sense out of it than me!
Thanks.
