Honeywell T8775A specifications SET System and FAN Switches T8775C only, Features and Operation

T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS

Fahrenheit/Celsius Indication

Use DIP switch 3 to set the desired temperature indication. See Table 2.

Table 2. Temperature Indication.

Fahrenheit/Celsius Display	DIP Switch 3
Fahrenheit (factory setting)	Off
Celsius	On

Mount Thermostat to Wallplate (see Fig. 14)

		(T8775C ONLY)
(T8775C ONLY)		SELECTS
SELECTS		ON/AUTO
COOL/OFF/HEAT
	ROOM	SHOWS THAT THE
	SET
		CURRENT ROOM
		TEMPERATURE IS
		DISPLAYED.

ENGAGE TABS

DISPLAYS ROOM

SHOWS THAT THE CURRENT TEMPERATURE SETPOINT IS DISPLAYED.

AT BOTTOM OF

THERMOSTAT

AND WALL PLATE.

PRESS UPPER

EDGE OF CASE

TO LATCH

M19498

Fig. 14. Mount thermostat to wallplate.

SET SYSTEM AND FAN SWITCHES (T8775C ONLY)

SYSTEM Switch: (See Fig.15)

Heat: The thermostat controls the heating system.

Off: Both the heating and cooling systems are off.

Cool: The thermostat controls the cooling system.

FAN Switch: (See Fig.15)

Auto: The fan only runs with the heating and cooling system.

On: The fan runs continuously. Use for improved air circulation.

FEATURES AND OPERATION

Features and operation of The Digital RoundTM Thermostat (see

Fig. 15 and 16):

•Simple to use. Turn the dial to adjust the temperature setting.

•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.

OR SET TEMPERATUREDISPLAYS AND ADJUSTS TEMPERATURE SETPOINT/TURNS

BACKLIGHT ON

M19681

Fig. 15. T8775 Thermostat (features and operation).

		R	W	A	R
	E
L						M
O							E	R
O
C

ROOM

SET

M19582

Fig. 16. T8775 Thermostat.

Backlit Display

Push the backlight button to turn on the backlight (See Fig. 15).

Display Temperature Setpoint

1.Turn the dial one click to display the temperature set-

point. An indicator points to Set when the tempera- ture setpoint is displayed (see Fig.17).

ROOM

SET

M19489

Fig. 17. Temperature setpoint display.

2.If a change to the temperature setpoint is not made

within five seconds, the display will switch to the current room temperature. An indicator points to Room when the room temperature is displayed (see Fig. 18).

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