Hi,
Wondering if any of you chaps can offer some pearls of wisdom
I have a sealed/closed system with 3 zones - upstairs/downstairs heating and hot water.
The downstairs zone valve has become too stiff for the valve head (drayton ZA5) to close the valve fully. As such whenever downstairs heating or hot water calls for heat from the boiler, the sticking valve is allowing water to enter that zone undesired.
I have been trying to sort a plumber out to fix but they are reluctant to come out given the current situation, understandably.
So not knowing how long this is going to go on for I have sorted out the same replacement valve and head assembly and I would like to have a crack at this myself. I am not too bad plumbing wise and can do the basics, but this is the first time i've dealt with a zone valve. Does the below sound about right?
The existing valve uses compression fittings (22mm). Can I reuse the existing olives if I can't remove them or should I use new ones? Will 22mm brass olives fit and be OK for 22mm copper pipe?
Anything else I should be aware of or should I really just leave this to the pro's?
Thanks
Wondering if any of you chaps can offer some pearls of wisdom
I have a sealed/closed system with 3 zones - upstairs/downstairs heating and hot water.
The downstairs zone valve has become too stiff for the valve head (drayton ZA5) to close the valve fully. As such whenever downstairs heating or hot water calls for heat from the boiler, the sticking valve is allowing water to enter that zone undesired.
I have been trying to sort a plumber out to fix but they are reluctant to come out given the current situation, understandably.
So not knowing how long this is going to go on for I have sorted out the same replacement valve and head assembly and I would like to have a crack at this myself. I am not too bad plumbing wise and can do the basics, but this is the first time i've dealt with a zone valve. Does the below sound about right?
- Isolate electrics
- Open all zone valves manually
- Drain system using drain cock on a downstairs rad opening all rad bleed valves
- Remove faulty zone valve
- Fit new valve
- Close radiator bleed valves
- Add inhibitor to one rad
- Repressurise and bleed off
- Put zone valves back to auto
The existing valve uses compression fittings (22mm). Can I reuse the existing olives if I can't remove them or should I use new ones? Will 22mm brass olives fit and be OK for 22mm copper pipe?
Anything else I should be aware of or should I really just leave this to the pro's?
Thanks