I wonder if anyone could assist me please.
I have just purchased a Drayton Digistat 1 to replace an existing Horstmann digital room thermostat (that does not work very well) and I'm unclear on how to wire it up (despite the instructions) !
The existing thermostat has three wires at the rear Red + Yellow + Blue, although only the Red and Yellow are connected (I presume an even earlier fitted thermostat prior to us moving in must have used the Blue wire as well).
The terminals on the rear are marked NO (red wire connected) COM (Yellow wire connected) and NC (nothing connected).
Can anyone advise how these connections correspond to the terminals on the Digistat please? (Digistat instructions show Term 1 = Common, Term 2 = Satisfied, and Term 3 = Demand)
I presume COM on Horstmann is the same as Common and thus terminal 1 on the Digistat, but totally confused as to the rest.
Many thanks
I have just purchased a Drayton Digistat 1 to replace an existing Horstmann digital room thermostat (that does not work very well) and I'm unclear on how to wire it up (despite the instructions) !
The existing thermostat has three wires at the rear Red + Yellow + Blue, although only the Red and Yellow are connected (I presume an even earlier fitted thermostat prior to us moving in must have used the Blue wire as well).
The terminals on the rear are marked NO (red wire connected) COM (Yellow wire connected) and NC (nothing connected).
Can anyone advise how these connections correspond to the terminals on the Digistat please? (Digistat instructions show Term 1 = Common, Term 2 = Satisfied, and Term 3 = Demand)
I presume COM on Horstmann is the same as Common and thus terminal 1 on the Digistat, but totally confused as to the rest.
Many thanks
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