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Doctor D
 
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"manxman" wrote in message
om...
I'M just about to install a new thermostat unfornatley i have
forgotten which wire goes were does the red wire go in to No1 and the
Black wire into No 3 or No 2
thanks


If it's new it should have instructions. The red/black shouldn't matter as
it's just a switch, but you will need to be sure of using the correct two
terminals.
I've just fitted a Horstmann DRT2 which stipulated that it depended on the
type of heating load you were breaking whether you were using NC or NO for
load. Red (feed) always had to go to COM on mine.


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