If you have a FAD2 or Sensaphone Cottage Sitter please view the below diagram to see how to wire it to remotely switch your home between two thermostats.
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need wiring diagram.
have a programable thermostat from honeywell
which wire goes to T1 and T2 – red power?
Hi Jim, the above diagram is fixed now and should work for you. With the FAD2 the T1 COM T2 terminals are the same as the NO C NC terminals on this diagram. So you can see how to wire both thermostats into your furnace using the 24V output.