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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Level of pipes in primary HW circuit
I currently have a Y-Plan heating system. The pump and 3-port valve are both
in the airing cuboard with the 3-port valve sitting more or less on top of the pump. The outlets from the 3-port valve - one to the coil in the cylinder and the other to the radiators - are horizontal, and are level with the top indirect coil connection, about half way up the cylinder. The 3-port valve is showing its age and will soon need replacing. I would like to convert to an S-Plan system by replacing the 3-port valve with two 2-port valves plus an automatic by-pass. I would also like to insert some full-bore lever valves to make it easy to isolate each component for maintenance. I cannot do this without changing the layout somewhat. There is not enough horizontal pipe either side of the 3-port valve (to be repaced by a tee) to insert 2-port valves. So I would like to extend the pipework by a foot or so above the current level, tee to 2 horizontal branches, and then come down again vertically with a 2-port valve in each vertical drop. I would, of course, put a vent pipe with bleed screw at the hightest point. Can anyone see any problems with this? TIA. -- Cheers, Set Square ______ Please reply to newsgroup. Reply address is invalid. |
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