Honeywell RTH8500 - Wire Connections; Connect Wires

Installation Guide
10
About your new thermostatConnect wires (typical installation)
1. Match each labeled wire with
same letter on terminal.
(Use HEAT PUMP letters if
you have a heat pump system.)
2. Use a screwdriver to loosen
screw terminals, insert
wires, then tighten screws.
3. Push any excess wire back
into the wall opening.
Remove metal jumper if you have both R and Rc wires.
Labels don’t match?
If labels do not match letters on
thermostat, see pages 11-12.
Insert wires, then
tighten screws.