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T87N/T87K • Owner's Manual
Product application
This thermostat provides electronic control of:
•
24 VAC heating systems (T87K)
•
24 VAC heating and cooling systems (T87N)
System Types
•
Gas or oil heat (T87K)
•
Gas, oil, or electric heat with air
conditioning (T87N)
•
Warm air, hot water, high-efficiency
furnaces, heat pumps, steam, gravity
•
Heat only
•
Heat only with fan (T87N)
•
Heat only, 2-wire, and 3-wire hot-
water valve (power open and close
valves) (T87K)
•
Cool only (T87N)
System Settings (T87N)
•
Heat, Off, Cool
Installation tips
Install the thermostat about 5 feet (1.5 m) above the floor in an
area with good air circulation at average temperature.
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Do not install in locations where the thermostat can be 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
69-1958EFS—04
Fan Settings (T87N)
•
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
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