Owner's Manual
Page 4
Display The thermostat displays important information such as day, time, schedule period, temperature, filter information, system and fan operation. Tip symbol. Look for helpful 60 70 80 90 60 70 80 90 tips throughout this guide when you identify ... a heat pump. 69-1538 WARNING: This product operates under provisions of Part 15 of the FCC Rules. Modifications to this product not specifically authorized by Honeywell may void the user's authority to operate this symbol.
Display The thermostat displays important information such as day, time, schedule period, temperature, filter information, system and fan operation. Tip symbol. Look for helpful 60 70 80 90 60 70 80 90 tips throughout this guide when you identify ... a heat pump. 69-1538 WARNING: This product operates under provisions of Part 15 of the FCC Rules. Modifications to this product not specifically authorized by Honeywell may void the user's authority to operate this symbol.
Owner's Manual
Page 5
... SLEEP TIMES AND TEMPERATURES PROGRAM SCHEDULING WAKE LEAVE RETURN SLEEP ENTERS PROGRAMMING MODE FAN SELECTS AUTO/ON SYSTEM SELECTS HEAT/OFF/COOL (AUTO) FILTER SELECTS FILTER TIMER REMINDER PERIOD (0, 15, 30, 60, 90, 120 DAYS) M20893A Fig. 1. PRESS AND HOLD TO CANCEL ENERGY SAVINGS AND ...COPIES SETTINGS FROM ONE DAY TO ANOTHER DAY FOR QUICKPROGRAMMING Day Daylight Time Time Wake Heat/Cool Settings Leave Return Set Program Filter System Copy Sleep Fan HEAT/COOL SETTINGS SWITCHES BETWEEN HEAT SETPOINTS AND COOL SETPOINTS WHILE PROGRAMMING INCREASE RAISES TEMPERATURE SETTING DECREASE ...
... SLEEP TIMES AND TEMPERATURES PROGRAM SCHEDULING WAKE LEAVE RETURN SLEEP ENTERS PROGRAMMING MODE FAN SELECTS AUTO/ON SYSTEM SELECTS HEAT/OFF/COOL (AUTO) FILTER SELECTS FILTER TIMER REMINDER PERIOD (0, 15, 30, 60, 90, 120 DAYS) M20893A Fig. 1. PRESS AND HOLD TO CANCEL ENERGY SAVINGS AND ...COPIES SETTINGS FROM ONE DAY TO ANOTHER DAY FOR QUICKPROGRAMMING Day Daylight Time Time Wake Heat/Cool Settings Leave Return Set Program Filter System Copy Sleep Fan HEAT/COOL SETTINGS SWITCHES BETWEEN HEAT SETPOINTS AND COOL SETPOINTS WHILE PROGRAMMING INCREASE RAISES TEMPERATURE SETTING DECREASE ...
Owner's Manual
Page 6
... display. 6 SHOWS ACTIVE PRICE TIER (HIGH, MEDIUM OR LOW) SHOWS CRITICAL PRICE TIER IS ACTIVE SHOWS VACATION HOLD DURATION SHOWS FILTER TIMER EXPIRED (TIME TO REPLACE FILTER) SHOWS CURRENT DAY OR DAYS BEING PROGRAMMED SHOWS CURRENT PROGRAM PERIOD OR PERIOD BEING PROGRAMMED DISPLAYS EITHER CURRENT TIME OF DAY OR PROGRAM... IS THE CURRENT SET TEMPERATURE SHOWS THAT THERMOSTAT IS CALLING FOR HiMedLo Set Program Set Day/Time Temporary Setting Critical AM Hold for Filter Em Ht Aux Ht Days MonTueWedThuFri Sat Sun Repl Batt Room Wake Leave Return Sleep Recovery DST System Em Heat Off Wait Fan ...
... display. 6 SHOWS ACTIVE PRICE TIER (HIGH, MEDIUM OR LOW) SHOWS CRITICAL PRICE TIER IS ACTIVE SHOWS VACATION HOLD DURATION SHOWS FILTER TIMER EXPIRED (TIME TO REPLACE FILTER) SHOWS CURRENT DAY OR DAYS BEING PROGRAMMED SHOWS CURRENT PROGRAM PERIOD OR PERIOD BEING PROGRAMMED DISPLAYS EITHER CURRENT TIME OF DAY OR PROGRAM... IS THE CURRENT SET TEMPERATURE SHOWS THAT THERMOSTAT IS CALLING FOR HiMedLo Set Program Set Day/Time Temporary Setting Critical AM Hold for Filter Em Ht Aux Ht Days MonTueWedThuFri Sat Sun Repl Batt Room Wake Leave Return Sleep Recovery DST System Em Heat Off Wait Fan ...
Owner's Manual
Page 7
...activate this feature. • For additional features, see the outdoor temperature (C7089B Outdoor Temperature Sensor optional accessory), the current setpoints, or the filter status. • Daylight Time key for quick time changes between Daylight and Standard time. • Backlit display for added comfort and energy ... • Permanent schedule override-set the comfort level you want when you return. • Set the filter indicator (0, 15, 30, 60, 90, or 120 days) to remind you to change the filter. • Information at the press of a button-use the i (information) key to 255 days)...
...activate this feature. • For additional features, see the outdoor temperature (C7089B Outdoor Temperature Sensor optional accessory), the current setpoints, or the filter status. • Daylight Time key for quick time changes between Daylight and Standard time. • Backlit display for added comfort and energy ... • Permanent schedule override-set the comfort level you want when you return. • Set the filter indicator (0, 15, 30, 60, 90, or 120 days) to remind you to change the filter. • Information at the press of a button-use the i (information) key to 255 days)...
Owner's Manual
Page 21
...: • Outdoor temperature (if equipped). • Current setpoint of mode in use (Heat or Cool). • Setpoint of mode not currently in use . • Filter status. Using the i (Information) Key Tue Wake AM Room DST System Em Heat Fan Auto INFORMATION KEY M20896 If... filter status is : • Filter status. • Outdoor temperature (if equipped). • Current setpoint of mode in use (Heat or Cool). • Setpoint of mode not currently in use . Displaying...
...: • Outdoor temperature (if equipped). • Current setpoint of mode in use (Heat or Cool). • Setpoint of mode not currently in use . • Filter status. Using the i (Information) Key Tue Wake AM Room DST System Em Heat Fan Auto INFORMATION KEY M20896 If... filter status is : • Filter status. • Outdoor temperature (if equipped). • Current setpoint of mode in use (Heat or Cool). • Setpoint of mode not currently in use . Displaying...
Owner's Manual
Page 22
...press i key twice for instructions on resetting filter indicator. See Filter Indicator 60 70 80 90 section for opposite setpoint. Example display shows cooling setpoint of mode not currently in use. Cool M20898 Press i key twice to display current setpoint; If filter status is expired, press i key three ...times to display outdoor temper- 60 70 80 90 ature. If filter status is expired, press i key twice to check current temper- 60 70 80 90...
...press i key twice for instructions on resetting filter indicator. See Filter Indicator 60 70 80 90 section for opposite setpoint. Example display shows cooling setpoint of mode not currently in use. Cool M20898 Press i key twice to display current setpoint; If filter status is expired, press i key three ...times to display outdoor temper- 60 70 80 90 ature. If filter status is expired, press i key twice to check current temper- 60 70 80 90...
Owner's Manual
Page 23
... run-time hours. (If fan is running and lets you know when to replace the filter, based on only one fan run time. 23 69-1538 Press Filter key to display filter information. Example display shows current fan run -time days you select. To change this setting... or reset after filter expiration: 1. Filter M14577 Press Filter key to enter Filter mode. Filter Indicator Filter Tue Wake AM Room DST FILTER EXPIRATION INDICATOR System Em Heat Fan Auto M20899 Your thermostat monitors the amount of time the ...
... run-time hours. (If fan is running and lets you know when to replace the filter, based on only one fan run time. 23 69-1538 Press Filter key to display filter information. Example display shows current fan run -time days you select. To change this setting... or reset after filter expiration: 1. Filter M14577 Press Filter key to enter Filter mode. Filter Indicator Filter Tue Wake AM Room DST FILTER EXPIRATION INDICATOR System Em Heat Fan Auto M20899 Your thermostat monitors the amount of time the ...
Owner's Manual
Page 24
... When Heat Pump Fault Monitor LED indicator lights (red), see Troubleshooting section. 69-1538 24 If setting is 0 days, display always shows "0 Days; 0 Setting" when Filter key is running, you must select a setting other than 0 (0 means off). M19467 Two LED indicators located on upper right of days display (0, 15, 30, 60... until desired number of the thermostat indicate when a Heat Pump Fault Monitor or Equipment Monitor signal is sent to the thermostat from the system. Setting Filter Days LED Indicators (T8665D Only) HEAT PUMP FAULT MONITOR LED EQUIPMENT MONITOR LED Hold down...
... When Heat Pump Fault Monitor LED indicator lights (red), see Troubleshooting section. 69-1538 24 If setting is 0 days, display always shows "0 Days; 0 Setting" when Filter key is running, you must select a setting other than 0 (0 means off). M19467 Two LED indicators located on upper right of days display (0, 15, 30, 60... until desired number of the thermostat indicate when a Heat Pump Fault Monitor or Equipment Monitor signal is sent to the thermostat from the system. Setting Filter Days LED Indicators (T8665D Only) HEAT PUMP FAULT MONITOR LED EQUIPMENT MONITOR LED Hold down...
Owner's Manual
Page 48
...temperature is cooler than current setting and air conditioner is operating in Pre-cool mode. Contact installer or service technician. Refer to the Filter Indicator section. 69-1538 48 Thermostat is still running. Press i key twice for three seconds until the Pre-cool event is incorrect.... If the thermostat displays PrE, wait until DONE is connected incorrectly. Installer did not activate this option. Filter expired. Outdoor temperature is not displayed or is complete. If PrE does not display, contact your local heating contractor or Energy Utility. Table...
...temperature is cooler than current setting and air conditioner is operating in Pre-cool mode. Contact installer or service technician. Refer to the Filter Indicator section. 69-1538 48 Thermostat is still running. Press i key twice for three seconds until the Pre-cool event is incorrect.... If the thermostat displays PrE, wait until DONE is connected incorrectly. Installer did not activate this option. Filter expired. Outdoor temperature is not displayed or is complete. If PrE does not display, contact your local heating contractor or Energy Utility. Table...