T87N Easy-To-SeeTM • Owner's Manual
2

System Types

Gas, oil, or electric heat with air
conditioning
Warm air, hot water, high-efficiency
furnaces, heat pumps, steam, gravity
Heat only
Heat only with fan
Cool only

System Settings

Heat, Off, Cool

Fan Settings

Auto, On

Specifications

Temperature Range
40° to 90°F (4.5° to 32°C)
Shipping Temperature
-20° to 120°F (-28.9° to 48.9°C)
Operating Relative Humidity
5% to 90% (non-condensing)
Electrical Ratings
Voltage: 20–30 VAC
Running current: 0.02–1.0A
Install the thermostat about 5 feet (1.5 m) above the floor in an area
with good air circulation at average temperature.
Do not install in l ocations where th e thermostat can b e affected by:
Drafts or dead spots behind doors and in corners
Hot or cold air from ducts
Sunlight or radiant heat from appliances
Concealed pipes or chimneys
Unheated/uncooled areas such as an outside wall behind the thermostat
NO
NO NO
Installation tipsProduct application

This thermostat provides electronic control of 24 VAC single-stage heating

and cooling systems.