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T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
SYSTEM Switch
Heat:
The thermostat controls the heating
system.
Off:
Both heating and cooling systems are off.
Cool:
The thermostat
system.
FAN Switch
Auto:
The fan only runs with the heating and
cooling system.
On:
The fan runs continuously. Use for
improved air circulation.
CHECKOUT
NOTE:
Temperature setpoint range is 40°F to 90°F
(4°C to 32°C) in heating and 45°F to 99°F
(7°C to 37°C) in cooling.
Heating
1.
Slide the SYSTEM switch to Heat and the FAN
switch to Auto (T8775C only).
2.
Raise the temperature setpoint several degrees
above the room temperature.
3.
A flame
will appear in the display and the
heat should turn on.
4.
Lower the temperature setpoint below the room
temperature.
5.
The flame
will disappear from the display
and the heat should turn off.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
69-1677EF—1
J.S. Rev. 6-04
(T8775C ONLY)
SELECTS
COOL/OFF/HEAT
DISPLAYS ROOM
OR SET TEMPERATURE
Fig. 10. T8775 Thermostat (features and operation).
controls the cooling
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario
M1V 4Z9
(T8775C ONLY)
SELECTS
ON/AUTO
ROOM
SHOWS THAT THE
SET
CURRENT ROOM
TEMPERATURE IS
DISPLAYED.
SHOWS THAT THE
CURRENT TEMPERATURE
SETPOINT IS DISPLAYED.
DISPLAYS AND ADJUSTS
TEMPERATURE SETPOINT/TURNS
BACKLIGHT ON
Cooling (T8775C only)
CAUTION
Low Temperature Hazard.
Operating at too low of an outdoor
temperature may cause compressor
damage.
Do not operate cooling if outdoor temperature
is below 50°F (10°C). Refer to manufacturer's
recommendations.
NOTE:
If a call for cooling is made before the com-
pressor has been off for five minutes, or if a
power interruption occurs while the com-
pressor is running, the thermostat will go
into a five-minute delay to protect the com-
pressor. The snowflake
this delay.
1.
Slide the SYSTEM switch to Cool and the FAN
switch to Auto.
2.
Lower the temperature setpoint several
degrees below the room temperature.
3.
After approximately five minutes, the thermo-
stat will display a solid snowflake
cooling should turn on.
4.
Raise the temperature setpoint above the room
temperature.
5.
The snowflake
play and the cooling should turn off.
Fan
1.
Slide the SYSTEM switch to Off and the FAN
switch to On. The fan should run continuously.
2. Slide the FAN switch to Auto. The fan should
turn off.
M19520
will flash during
and the
will disappear from the dis-
www.honeywell.com/yourhome
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