Honeywell Digital Round Non-Programmable Heat-Only Thermostat

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Digital RoundT T8775A1009 Heating Only Thermostat by Honeywell
Pro T8775 Series Thermostats by Honeywell feature a lighted display and easily adjust temperature. Twist the cover ring and feel and hear the "clicks" that confirm your changes. Color: Premier White.

An up-to-date twist on a classic
Honeywell's T87 Round® thermostat has been a symbol of quality and comfort for over fifty years. Now the Round® has gone digital. The familiar twist of the ring quickly adjusts the temperature, which registers on the large, easy-to-read digital display. A one-touch backlight illuminates the display for easy use in all lighting conditions - even in the dark.

Digital RoundT
Very accurate - as always, the temperature remains within one degree of the set point, and the settings are retained in memory in the event of a power outage. The Digital RoundT carries on Honeywell's tradition of quality comfort control. T8775A1009 is a heating only, Digital RoundT Honeywell Thermostat.


. Attractive styling complements any decor.
. Large easy-to-read display.
. The temperature reading is easily seen from a distance.
. Backlit display.
. On-demand backlighting makes it easy to read the display in a dark room or hallway.
. No batteries required.
. The temperature setting is held permanently in memory in the event of a power failure.
. F or C temperature display.
. Selectable heating cycle rates (1, 3, 6, 9 cph) for a variety of applications.

The T8775A1009 heating only thermostat includes a concealed 2-terminal only wallplate.

Description  Premier White 1Heat Stage Digital RoundT Thermostat for 24 Vac gas or oil heat only systems
Application -  Heat Only
Mounting - Round
Color - Premier White®
Stages - 1 Heat
Power Method - Powered through system heating controls
Terminal Designations -  R, W
Switch Type - Electronic
Accuracy (F)  ±1 F
Accuracy (C)  ±0.5 C
Dimensions (in.)  3 11/16 in. diameter x 1 7/16 in. deep
Dimensions (mm)  94 mm diameter x 37 mm deep
Setting Temperature Range (F)  40 to 90
Setting Temperature Range (C)  4.5 to 32
Electrical Ratings  18 to 30 Vac
Frequency  60 Hz
Cycles per Hour  Adjustable 1, 3, 6, 9
Cool Current  0.02A to 1.5A running; 6.0A inrush
Heat Current  0.02A to 1.5A running, 3.5A inrush
Fan Current  0.02A to 0.5A running, 2.5A inrush
Sensor Element  Thermistor
Operating Humidity Range (% RH)  5 to 90% RH (non-condensing)
Includes  Wallplate, resistor assembly, mounting screws and wall anchors
Comments  Large easy-to-see backlit display.
Display Size  .75 sq. in.
Voltage  20 to 30 Vac