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Step 7. Connect Wires to New Wallplate (Cont)
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M22050
If wires will be connected to both RC and R on the new
thermostat, remove metal jumper between RC and R. Leave
metal jumper in place if only one of the terminals, RC or R, will
be connected on the new thermostat.
If wires were connected to both R and RH terminals on the old
thermostat, remove metal jumper between RC and R on the new
thermostat. Connect the old R to the new RC and the old RH to
the new R.
Do not connect both O and B when wiring to a heat pump.
Connect O to O/B W. Wrap the bare end of the B wire with
electrical tape and do not use.
Transformer common. Wrap the bare end of the wire with
electrical tape and do not use.
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3
4
NOTES