Honeywell RTH8500 Owner's Manual

12
Function Description Setting
Press the s or t button to change the setting.
0500 Furnace Filter Change Reminder 0 Off (no reminder)
1 Reminder in about 1 month
2 Reminder in about 3 months
3 Reminder in about 6 months
4 Reminder in about 9 months
5 Reminder in about 1 year
6 Reminder in about 3 years
0530 Smart Response® Technology 1 On
0 Off
0640 Clock Format 12 12-hour clock (i.e., “3:30 pm”)
24 24-hour clock (i.e., “15:30”)
About your new thermostat
Congratulations! You’ve just purchased the world’s most advanced, easy-to-use
thermostat. It has been designed to give you many years of reliable service and
touchscreen climate control.
• 7-day program schedules maximize comfort and economy.
• Armchair programming: Just pull thermostat from the wall to set schedules.
• One-touch temp control overrides program schedule at any time.
• Precise comfort control keeps temperature within 1°F of the level you set.
• Change/check reminders let you know when to replace filters and batteries.
• Large touchscreen display with backlight is easy to read—even in the dark.

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)