On Thu, 13 Dec 2007 22:15:14 +0000, Block wrote:

"Ed Sirett" wrote in message
...
On Thu, 13 Dec 2007 09:37:21 +0000, John wrote:

"Block" wrote in message
...
Hi,

Anyone know where the valve is located on the CH expansion vessel on
an ideal response boiler, I need to check the pressure and the manual
appears not to show its location,

many thanks

nige



Are you sure it has one? If it is an open vented system then it may
have been omitted.

Do you have a filling loop or a header tank?

Yes it a combi and combis (always?) are sealed systems. If you are sure
the problem is the vessel then why not make a repair or work around as
per the FAQ?

When you say repair do you mean install another vessel in the pipe
work?? I dont fancy replacing the existing one as it necessitates
removal of boiler from frame.
I will probably do a work around as per your FAQ, how long is this
useable untill
i get around to replacing the boiler?

many thanks for your replies,

How long the boiler has will depend on whether the dreaded main heat
exchanger leaks have started yet.

The life expectancy of a Response 120 is pretty short.
Your best bet is to run it on maximum, keep as many TRVs on max as
possible and use the main wall thermostat to control the system.

Also consider adding an open bypass between the flow and return to get
the return water above 60C as quickly as possible.

The trouble is that the boiler is apt to condense and it just can't
handle the condensate.

The first sign of trouble may well be an ignition failure and lockout.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html