Question about Honeywell Programmable Thermostat Heater
I stupidly changed a Danfoss 4033 timeclock to a Grasslin Q2 , before getting any connection details for the original Danfoss. I have tried to find schematic drawings to suit the various valves and switches but so far I,ve failed . I,ve got two motorised valves one in the HW and one in the CH pipework both spring return and both only two wire i.e Live and Neutral . A cylinder stat with N/O and N/C contacts and a Room stat with N/O and N/C contacts along with the previously mentioned time clock with HW on HW off HTGon HTG off connections . It,s all got a bit frustrating . I know the boiler requires a switched supply as well as a permanant live and the frost stat is connected across these two cables .But I.m stuggling to get it to work without the Aux switches usually within the motorised valves. Can any one help ?
What kind of boiler are using is this boiler a on the demand electric or gas? You need low voltage wires. If you get me make and model # of off boiler i can try and find wiring diagram . Tell me a little more about you heat system to. Like baseboard heat or in floor how many zones
Posted on Jan 16, 2009
Those normally do not fail, they have a mercury switch in them. However there is a cravat they have to be mounted level and up side up. If that is the way it is mounted then just replace it.
Posted on Dec 19, 2014
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