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T8775A,C THE DIGITAL ROUND
™
NON-PROGRAMMABLE THERMOSTATS
68-0279 6
Fahrenheit/Celsius Indication
Use DIP switch 3 to set the desired temperature indication. See
Table 2.
Table 2. Temperature Indication.
Mount Thermostat to Wallplate (see Fig. 14)
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 Round
TM
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.
Fig. 15. T8775 Thermostat (features and operation).
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).
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).
Fahrenheit/Celsius Display DIP Switch 3
Fahrenheit (factory setting) Off
Celsius On
M19498
ENGAGE TABS
AT BOTTOM OF
THERMOSTAT
AND WALL PLATE.
PRESS UPPER
EDGE OF CASE
TO LATCH
ROOM
SET
DISPLAYS ROOM
OR SET TEMPERATURE
M1968
1
SHOWS THAT THE
CURRENT TEMPERATUR
E
SETPOINT IS DISPLAYED
.
(T8775C ONLY)
SELECTS
ON/AUTO
(T8775C ONLY)
SELECTS
COOL/OFF/HEAT
DISPLAYS AND ADJUSTS
TEMPERATURE SETPOINT/TURNS
BACKLIGHT ON
SHOWS THAT THE
CURRENT ROOM
TEMPERATURE IS
DISPLAYED.
C
O
O
L
E
R
W
A
R
M
E
R
ROOM
SET
M19582
ROOM
SET
M1948
9
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