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- 7 Mar 2014
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I need to replace rad upstairs to a smaller one hence would need to realign the pipes.
It appears there is no radiator with drain valve but there are 2 on Unistor cylinder.
This is unvented system with 2 zones - 1) underfloor heating and 2) radiators (2 downstairs and 5 upstairs).
I presume the CH drain valve is the lowest one fitted on CH return pipe - can someone please confirm this as I don't want to drain cylinder by mistake.
Also I was going to isolate downstairs rads by closing both in and out radiator valves and isolate underfloor heating circuit by closing both red and blue valves in the underfloor manifold - is this correct way of doing it ?
Thanks!
It appears there is no radiator with drain valve but there are 2 on Unistor cylinder.
This is unvented system with 2 zones - 1) underfloor heating and 2) radiators (2 downstairs and 5 upstairs).
I presume the CH drain valve is the lowest one fitted on CH return pipe - can someone please confirm this as I don't want to drain cylinder by mistake.
Also I was going to isolate downstairs rads by closing both in and out radiator valves and isolate underfloor heating circuit by closing both red and blue valves in the underfloor manifold - is this correct way of doing it ?
Thanks!