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The Round? Mercury Free Easy-to-See Thermostat with manual changeover and R, Rc, W, Y, G, O, B termi

Price: $112.76
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SKU: THE87N126
(See Product Details Below for Manufacturers Part Numbers)
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The Round
• Mercury Free Easy-to-See Thermostat with manual changeover and R, Rc, W, Y, G, O, B terminals for single stage heating and cooling systems (Honeywell)

The Round
• T87K and T87N thermostats provide electronic control of 24Vac heating and cooling systems with the classic twist to set dial.


• Mercury Free

• Classic Styling

• Premier White

• Separate temperature setting and thermometer

• The T87K heat only works with 2 or 3 wire heat only systems

• The Easy-To-See
• has enlarged scale and raised numbers--plus it click at every 2ºF change

Product Specifications

Description The Round
• Heat and Cool Easy-to-See Mercury Free Thermostat

Application Conventional and Heat Pump systems

Mounting Round

Changeover Manual

Color Premier White

Stages 1 Heat/1 Cool

Power Method Uses stored power from heating and cooling controls.

Terminal Designations R, Rc, W, Y, G, O, B

Switch Positions (Fan) AUTO-ON

Switch Positions (System) COOL-OFF-HEAT

Switch Type Relay

Accuracy (F) 2 F

Accuracy (C) 1 C

Dimensions (in.) 4 in. diameter x 1 3/4 in. deep

Dimensions (mm) 102 mm diameter x 45 mm deep

Setting Temperature Range (F) 40 F to 90 F

Frequency 60 Hz;50 Hz

Cycles per Hour Adj. 1,3,5,9

Cool Current 0.02-1.2A running

Heat Current 0.02-1.2A running

Sensor Element Thermistor

Operating Humidity Range (% RH) 5 to 90% RH (non-condensing)

Includes 6 in. (152 mm) cover ring and switch position labels

Comments EASY-TO-SEE model with Large raised markings and a click at each 2 degree setpoint change

Voltage 20 to 30 Vac

Replaces Thermostat Part Numbers:


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