Owner's Manual
Page 1
Registered Trademark Patents Pending © 2004 Honeywell International Inc. All Rights Reserved 69-1679EF-1 T8775A,C The Digital Round™ Non-Programmable Thermostats OWNER'S GUIDE ® U.S.
Registered Trademark Patents Pending © 2004 Honeywell International Inc. All Rights Reserved 69-1679EF-1 T8775A,C The Digital Round™ Non-Programmable Thermostats OWNER'S GUIDE ® U.S.
Owner's Manual
Page 2
DISPLAYS ROOM OR SET TEMPERATURE SHOWS THAT THE CURRENT TEMPERATURE SETTING IS DISPLAYED. DISPLAYS AND ADJUSTS TEMPERATURE SETTING/TURNS BACKLIGHT ON M19470 Fig. 1. T8775 Thermostat (features and operation). 69-1679EF-1 2 (T8775C ONLY) SELECTS COOL/OFF/HEAT (T8775C ONLY) SELECTS ON/AUTO ROOM SHOWS THAT THE SET CURRENT ROOM TEMPERATURE IS DISPLAYED.
DISPLAYS ROOM OR SET TEMPERATURE SHOWS THAT THE CURRENT TEMPERATURE SETTING IS DISPLAYED. DISPLAYS AND ADJUSTS TEMPERATURE SETTING/TURNS BACKLIGHT ON M19470 Fig. 1. T8775 Thermostat (features and operation). 69-1679EF-1 2 (T8775C ONLY) SELECTS COOL/OFF/HEAT (T8775C ONLY) SELECTS ON/AUTO ROOM SHOWS THAT THE SET CURRENT ROOM TEMPERATURE IS DISPLAYED.
Owner's Manual
Page 3
... Do not operate the T8775C in memory. 3 69-1679EF-1 The fan only runs with ❑ On: the heating and cooling system. SET THE FAN SWITCH: ❑ Auto: Normal setting for improved air circulation. The fan runs continuously. Use for most homes. Operating Your Thermostat NOTE: Batteries are not...the outdoor temperature is below 50°F (10°C), or damage to compressor could result. SET THE SYSTEM SWITCH: ❑ Heat: The thermostat controls your heating system. ❑ Off: Both heating and cooling systems are controlled by using SYSTEM and FAN switches located on the top of...
... Do not operate the T8775C in memory. 3 69-1679EF-1 The fan only runs with ❑ On: the heating and cooling system. SET THE FAN SWITCH: ❑ Auto: Normal setting for improved air circulation. The fan runs continuously. Use for most homes. Operating Your Thermostat NOTE: Batteries are not...the outdoor temperature is below 50°F (10°C), or damage to compressor could result. SET THE SYSTEM SWITCH: ❑ Heat: The thermostat controls your heating system. ❑ Off: Both heating and cooling systems are controlled by using SYSTEM and FAN switches located on the top of...
Owner's Manual
Page 5
... does not come on. ❑ Make sure that the SYSTEM switch on the thermostat is below 50°F (10°C). Troubleshooting Guide CAUTION Equipment Damage Hazard. Do not operate cooling when outside temperature is set to Heat or Cool (T8775C only). 5 69-1679EF-1 Can cause permanent damage to remain off for five...
... does not come on. ❑ Make sure that the SYSTEM switch on the thermostat is below 50°F (10°C). Troubleshooting Guide CAUTION Equipment Damage Hazard. Do not operate cooling when outside temperature is set to Heat or Cool (T8775C only). 5 69-1679EF-1 Can cause permanent damage to remain off for five...
Owner's Manual
Page 6
... temperature and a solid snowflake is running, the thermostat will flash during this thermostat, call for cooling is made before the compressor has been off for five minutes, or if a power interruption occurs while the compressor is present in the display (T8775C only). NOTE: If a call Honeywell Customer Care at the register. The snowflake will...
... temperature and a solid snowflake is running, the thermostat will flash during this thermostat, call for cooling is made before the compressor has been off for five minutes, or if a power interruption occurs while the compressor is present in the display (T8775C only). NOTE: If a call Honeywell Customer Care at the register. The snowflake will...