R
rabruce
I am currently nearing the end of extending my house. The aging inefficiant Baxi heating boiler has been replaced with a Worcester 24 Ri and the existing system extended. There are TRVs on ALL radiators and no room stat. The hot water and heating systems are controlled by 2 zone valves. Beside the zone valves is a Myson ABV. A new Gundfoss pump was also installed.
The sytem was flushed, filled and started up last week by my plumber, who is now unfortunately for me, on holiday for 3 weeks. Since he started up the system we have been plaqued by loud squeeling noises form the pipework. This can be rectified briefly by turning the ABV however it returns when 1 or both of the zone valves change their status.
I spoke to the plumber briefly before he took off for sunnier climbs. He mentioned that it could be the hot water zone valve that was causing it, and we may have to replace it.
My questions are:
1. Can anyone give me a clue what could be wrong?
2. Apart from being very annoying, will this damage anything, such as my new boiler or pump?
I'd be grateful for any advice.
The sytem was flushed, filled and started up last week by my plumber, who is now unfortunately for me, on holiday for 3 weeks. Since he started up the system we have been plaqued by loud squeeling noises form the pipework. This can be rectified briefly by turning the ABV however it returns when 1 or both of the zone valves change their status.
I spoke to the plumber briefly before he took off for sunnier climbs. He mentioned that it could be the hot water zone valve that was causing it, and we may have to replace it.
My questions are:
1. Can anyone give me a clue what could be wrong?
2. Apart from being very annoying, will this damage anything, such as my new boiler or pump?
I'd be grateful for any advice.