Owner`s manual

Non-Programmable Thermostats
Honeywell Water Product Solutions
63-8702 81
T87K,N The Round®
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
clicks at every 2 F change
Dimensions, Approximate: 3 11/16 in. diameter x 1 3/4 in. deep
(94 mm diameter x 45 mm deep)
Color: Premier White®
Electrical Ratings: 18 to 30 Vac
Setting Temperature Range: 40 F to 90 F
Changeover: Manual
Operating Humidity Range (% RH): 5 to 90% RH (non-condensing)
Accuracy: 2 F (1 C)
Cycles per Hour: Adj. 1,3,5,9
Switch Type:
Relay
Currents (Heating): 0.02-1.2A running
Frequency: 50 Hz; 60 Hz
Power Method:
Uses stored power from system controls.
Sensor Element: Thermistor
Mounting: Round
Accessories:
50000066-001 Decorative Cover Plate for T8775 or T87K,N
50010944-001 Range Stop Assembly
Product Number Application
Switch Positions
Terminal
Designations StagesSystem Fan
T87K1007 Heat only gas or oil systems OFF-HEAT — R, W, Y 1 Heat
T87N1000 Heating and Cooling systems COOL-OFF-HEAT AUTO-ON R, Rc, W, Y, G, O, B 1 Heat/1 Cool