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Central Heating & Storage Heaters Forum
Siemens 3 Way Valve Faults
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<blockquote data-quote="dave1510" data-source="post: 334302" data-attributes="member: 23130"><p>OK - I know it will be a drain down job anyway, so I could change the existing siemens for 2 x 2 port valves while I am at it... </p><p></p><p>However, I do have a few questions regarding replacing a 3 port with 2 x 2's:</p><p></p><p>1, As the system was "designed" with a 3 port valve, will changing 1 x 3 port valve to 2 x 2 port valves cause any issues with pressures and or balancing the system?</p><p></p><p>2, Will I have any problems with the wiring (not physically, but connecting 2 x 2 port valves to the 5 wires going to the boiler)</p><p></p><p>3, do I just put 1 2 port in the heating line, and 1 in the water line?</p><p></p><p>...and should I opt to replace the siemens with a Honeywell...</p><p></p><p>3, which model is best</p><p></p><p>Thanks</p><p></p><p>Dave</p></blockquote><p></p>
[QUOTE="dave1510, post: 334302, member: 23130"] OK - I know it will be a drain down job anyway, so I could change the existing siemens for 2 x 2 port valves while I am at it... However, I do have a few questions regarding replacing a 3 port with 2 x 2's: 1, As the system was "designed" with a 3 port valve, will changing 1 x 3 port valve to 2 x 2 port valves cause any issues with pressures and or balancing the system? 2, Will I have any problems with the wiring (not physically, but connecting 2 x 2 port valves to the 5 wires going to the boiler) 3, do I just put 1 2 port in the heating line, and 1 in the water line? ...and should I opt to replace the siemens with a Honeywell... 3, which model is best Thanks Dave [/QUOTE]
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