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SYSTEM (T8775C ONLY) SWiTCH_\ SELECTS (T8 F75C ON/AUTO SELECTS COOL, OFF/HEAT ROOM TEMPERATURE iNDiCATOR SHOWS THAT CURRENTROOM THAT SHOW TEMPERATURE iNDiCATORS THERMOSTAT IS DISPLAYED CALLED HEATING SETTING OR COOLmNG mNDICATOR SHOWS THAT CURRENT DiGiTAL DISPLAY TEMPERATURE DISPLAYS ROOM SETTING IS DISPLAYED OR SET TEMPERATURE DIAL...
Setting SYSTEM and FAN Switches (T8775C only) System and Fan settings are controlled by using SYSTEM and FAN switches located on the top of the thermostat (see Fig. 1). IMPORTANT Do not operate the T8775C in cooling mode when the outdoor temperature is below 50°F (10°C), or damage to compressor could result.
Backlit Display The backIight can be turned on by turning the dial, or by pushing the backlight button as shown in Fig. 1. DisplayTemperature Setting NOTE: Your temperature setting can be set anywhere from 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 (T8775C only).
Adjust Temperature Setting To lower the temperature setting, turn the dial counterclockwise. To raise the temperature setting, turn the dial clockwise. Troubleshooting Guide CAUTION Equipment Damage Hazard. Can cause permanent damage to compressor other equipment. Do not operate cooling when outside temperature is below 50°F (10°C).
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The snowflake _,_ will flash during this delay. Check the system fuse or circuit breaker and replace or reset if necessary. Check for air movement at the register. If you have questions concerning this thermostat, call Honeywell Customer Care at 1-800-468-1502. 69-1679ES--1...
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Honeywell Automation and Control Solutions HoneywelI InternationaI inc. Honeywell Limited-HoneyweII Limitee 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, 55422 Scarborough, Ontario Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. 69-1679ES--1 J.S. 6-04 w,_vhoneyweit.com/yourhome...