Post
by eggers »
Wed Jul 14, 2010 8:21 pm
the backs of the room thermostats are not an industry standard, but it is true most are the same.
A room stat can have any or all of the following:
permanent live (live all the time),
common live (becomes live when the programmer is timed to come on), calling (power from the room stat when room temperature is below the stat setting),
satisfied (power from the room stat when the room temperature is above the room stat setting),
neutral
and earth
the 2 wires will most likely be common live and calling, which mean your probably will not be able to fitted a room thermostat will timing controls, unless it uses batteries. somewhere on the room stat there should be a wiring diagram, usually on the back of the unit once to take it off the backing plate. Under the circumstances, i would fit a danfoss rs1! :wink: