johnlo23
New Member
I have six wires going to my thermostat. Only five are used.
I need to connect my Blue wire to Common 24V to power my new Honeywell RTH8580WF1007 Wifi thermostat.
With the old thermostat, this is the wiring:
First transformer, only two wires:
Heat White - W
Heat Red - Rh
Second Transformer:
AC White - Y
AC Red - Rc
AC Green - G
The AC transformer has an unused C terminal. Both transformers are hard-wired units.
This is the diagram of the Honeywell:
Can I hook up like this:
Rc to Rc
Rh to R
W to W
Y to Y
G to G
C to C
Will the Thermostat get power from C on the AC transformer? Do I leave the RC-R Jumper connected or remove it?
I need to connect my Blue wire to Common 24V to power my new Honeywell RTH8580WF1007 Wifi thermostat.
With the old thermostat, this is the wiring:
First transformer, only two wires:
Heat White - W
Heat Red - Rh
Second Transformer:
AC White - Y
AC Red - Rc
AC Green - G
The AC transformer has an unused C terminal. Both transformers are hard-wired units.
This is the diagram of the Honeywell:
Can I hook up like this:
Rc to Rc
Rh to R
W to W
Y to Y
G to G
C to C
Will the Thermostat get power from C on the AC transformer? Do I leave the RC-R Jumper connected or remove it?