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)
Overview
The Round
• T87K and T87N thermostats provide electronic control of 24Vac heating and cooling systems with the classic twist to set dial.
Features
• 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:
T86A1421
T87F3467
T87F5199
CART87N1026