Honeywell RTH8500 Installation Guide

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.

Honeywell RTH8500 Specifications

General

Hold Feature	Yes
Compatibility	Works with most heating and cooling systems
Temperature Range	40°F to 90°F
Weight	250 g
Programmable	7-day programmable
Dimensions	4.5 x 3.5 x 0.9 inches (114 x 89 x 23 mm)