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Environmental & Combustion Controls
T87K1007
The Round® Mercury Free Thermostat with manual changeover and R,W,Y terminals for single stage heating systems

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

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Features

• Classic Styling now Mercury Free
• Separate temperature setting and thermometer
• Available in Heat/Cool and Heat Only Models.
• The Easy-To-See™ has enlarged scale and raised numbers--plus it click at every 2ºF change.
Product Specifications  Back To Top
Description The Round® Heat Only Mercury Free Thermostat
Application Heat Only
Mounting Round
Color Premier White®
Stages 1 Heat
Power Method Battery assisted power stealing
Terminal Designations R, W, Y
Switch Type Relay
Accuracy (F) ±1 F
Accuracy (C) ±1 C
Dimensions (in.) 3 11/16 in. diameter x 1 3/4 in. deep
Dimensions (mm) 94 mm diameter x 45 mm deep
Setting Temperature Range (F) 40 to 90
Electrical Ratings 20 to 30 Vac
Frequency 50 Hz
Frequency 60 Hz
Cycles per Hour Adjustable 1, 3, 5, 9
Heat Current 0.02 A to 1.0 A running
Sensor Element Thermistor
Operating Humidity Range (% RH) 5 to 90% RH (non-condensing)
Voltage 20 to 30 Vac

Literature and other Resources Download Back To Top
Sell Sheet - (T87K1007, T87N1000, T87N1026 The Round Mercury-Free Thermostat)
Owners Manual - (T87N, T87K The Round Thermostat)
Installation Instructions - (50000066, T8775, T87K, T87N Decorator Cover Plate for T8775 Thermostat - English, French, Spanish)
Installation Instructions - (T87K, T87N (50010944, 50010944-001) Range Stops, English, French, Spanish)
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Product Accessories
50000066-001 - Decorative Cover Plate for T8775 or T87K,N
50010944-001 - Range Stop Assembly