Use and Care Manual

T87N/T87K • Owner's Manual

69-1958EFS—02 2

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

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

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 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

Installation tips

Product application

Thisthermostatprovideselectroniccontrolof:

• 24VACheatingsystems(T87K)

• 24VACheatingandcoolingsystems(T87N)