Honeywell RTH8500 Owner's Manual

9
10 Set Time and Date
1. Press s or t to set date.
2. Press s or t to set month.
3. Press s or t to set year, then press DONE.
4. Press s or t to set time, then press DONE to save and exit.
11 If your system type is...
If your system type is:
q Single Stage Heat and Cool
Congratulations, you’re done!
If your system type is:
q Multistage Heat and Cool
q Heat Pump* without Backup Heat
q Heat Pump* with Backup Heat
q Heat Only
q Cool Only
Continue with Advanced Installation on next page to match your thermostat to
your system type.
*Heat Pump—an air conditioner that provides cooling in the summer, and also
runs in reverse in the winter to provide heating.
If you are not sure of your system type or if you have other
questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems. It will NOT work on multi-
stage conventional systems.
DONE
TUE
15
6
2006
M28338
DONE
TUE
6
PM
1:00
M28339

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)