Honeywell RTH4300B Thermostat User Manual


 
Installation Guide
12
Connect wires (typical installation)
1. Match each labeled wire with
same letter on terminal.
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 next page.