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Just rewired a c/h zone and hot water zone into an S plan, due to an excess of wiring from old systems, and the pump running 24/7.
however, client has said rads got hot on hot water only,may be crap in c/h valve not allowing it to fully shut, but just wondering if I need to add the c-/h closed wire to the system, S plan doesn't normally require this but I have seen it somewhere.
It is a Glowworm ultimate 100 ff with internal pump overrun, a 22 mm Honeywell 4043 for h/ w and a 28 mm 2 port for heating, ( sorry cant remember number) Honeywell cylinder stat and no c/h stat. So at the moment it is linked out.
does anyone know when the. C/h close wire would be used.
however, client has said rads got hot on hot water only,may be crap in c/h valve not allowing it to fully shut, but just wondering if I need to add the c-/h closed wire to the system, S plan doesn't normally require this but I have seen it somewhere.
It is a Glowworm ultimate 100 ff with internal pump overrun, a 22 mm Honeywell 4043 for h/ w and a 28 mm 2 port for heating, ( sorry cant remember number) Honeywell cylinder stat and no c/h stat. So at the moment it is linked out.
does anyone know when the. C/h close wire would be used.