RTH5100B
Do not use
unconnected
wires.
Do not use
C
or
C1
wire.
If any wires are not attached to terminals in your old thermostat, do
not connect them to your new thermostat.
If a wire is attached to a terminal marked “
C
” or “
C1
,” disconnect it.
You will not connect it to your new thermostat.
Wrap the bare metal ends of each unused wire with electrical tape,
so it cannot touch and short out other wires.
Identify wires you will
not use
