Honeywell RTH8500D User Manual

5 69-1725-1
Step 2. Follow Important Instructions
1. Do not connect the wires to the new thermostat based on wire
color because damage can occur to the heating and/or cooling
system.
These Installation Instructions explain later how to use the
enclosed wire labels to correctly mark the wires connected to
your old thermostat.
M22034
Y
G
RC
W
OLD THERMOSTAT
RED
WHITE
YELLOW
ORANGE
GREEN
!
DO NOT WIRE
NEW THERMOSTAT
BASED ON
WIRE COLOR.
R

Honeywell RTH8500D Specifications

General

Programmability	7-day programmable
Wi-Fi	No
Operating Modes	Heat, Cool, Auto, Off
Filter Change Alert	Yes
Backup Battery	Yes
Display	Touchscreen
Power Source	Battery or Hardwired
Compatibility	Gas, oil, electric, and heat pump systems
Stages	Up to 2 Heat/2 Cool
Fan Modes	Auto, On, Circulate
Temperature Range	40°F to 99°F (4°C to 37°C)
Hold Feature	Yes