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User Manual
- User Manual - (English, Spanish)
- Dimension Guide - (English)
- Installation Instruction - (English)
- Other - (English)
- About your new thermostat
- Programming & Operation
- In case of difficulty
- Troubleshooting
Table of contents
User Manual Thermostat
About your new thermostat
Thermostat features
• 7-day program schedules maximize comfort and economy.
• Armchair programming: Just pull thermostat from the wall to set schedules.
• EnergyStar® compliant to greatly reduce your heating/cooling expenses.
• One-touch temp control overrides program schedule at any time.
• Precise comfort control keeps temperature within 1°F of the level you set.
• Change/check reminders let you know when to service or replace filters, batteries and other critical components.
• Large touchscreen display with backlight is easy to read—even in the dark.
• Select models display and control summer humidity.
• Select models accommodate optional outdoor or indoor remote sensors.
Quick reference to controls
Quick reference to status display
Other display messages:
• Cool On: Cooling system is activated
• Heat On: Heating system is activated
• Aux Heat On: Auxiliary heating system is activated
Programming & Operation
Clock setting
To set the current time display, press CLOCK, then press 
or
to adjust the time. Press and hold or to advance the time more quickly.
Press DONE to save & exit (or press CANCEL to exit without changing the time).
Fan setting
Press FAN to select fan operation, then press DONE.
• On: Fan is always on.
• Auto: Fan runs only when the heating or cooling system is on.
• Circ: Fan runs randomly, about 35% of the time, not counting any run time with the heating or cooling system.
You can press FAN to override the fan settings you’ve programmed for different time periods (see page 11). If you select On or Circ, the setting you select will remain active until you press FAN again to select Auto (see page 27 for more information).
System setting
Press the SYSTEM button to select, then press DONE.
• Heat: Thermostat controls only the heating system.
• Cool: Thermostat controls only the cooling system.
• Off: Heating and cooling systems are off.
• Auto: Thermostat automatically selects heating or cooling depending on the indoor temperature.**
• Em Heat (only for heat pumps with auxiliary heat): Thermostat controls Emergency and Auxiliary Heat. Compressor is locked out.**
** Select models only
Save money by setting program schedules
It’s easy to program your system for maximum energy savings. You can program four time periods each day, with different settings for weekdays and weekends.
Set to the time you awaken and the temperature you want during the morning, until you leave for the day
Set to the time you leave home and the temperature you want while you are away (usually an energy-saving level)
Set to the time you return home and the temperature you want during the evening, until bedtime.
Set to the time you go to bed and the temperature you want overnight (usually an energy-saving level).
EnergyStar® settings for maximum cost savings
This thermostat is pre-set to use EnergyStar® program settings. We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time period.)
To adjust program schedules
1. Press SCHED, then EDIT.
2. Press day buttons (MON-SUN) to select day(s).
3. Press 
or 
to set Wake time for selected day(s).
4. Press or to set Heat and Cool temperature for this time period.
5. Press other time periods (LEAVE, RETURN, SLEEP) to set time and temperatures for each.
6. Press DONE to save & exit (or press CANCEL to exit without saving changes)
Program schedule override (temporary)
Press or to immediately adjust the temperature. This will temporarily override the temperature setting for the current time period.
The new temperature will be maintained only until the time you set. When the timer expires, the program schedule will resume and set the temperature to the level you’ve programmed for the current time period.
To cancel the temporary setting at any time, press CANCEL (or SCHED). The program schedule will resume.
Program schedule override (permanent)
Press HOLD to permanently adjust the temperature. This will turn off the program schedule.
Whatever temperature you set will be maintained 24 hours a day until you manually change it or press CANCEL (or SCHED) to cancel “Hold” and resume the program schedule.
Vacation hold
This feature can suspend the program schedule for extended periods of time.
Press or to set the temperature you want, then press or to set the time of day you want the schedule to resume when you return. Press HOLD twice, then press or to select the number of days.
Whatever temperature you set will be maintained 24 hours a day for the number of days you select. After this number of days have elapsed, the previously programmed schedule will resume at the time you set.
If you return earlier than expected, press CANCEL (or SCHED) to cancel “Hold” and resume the program schedule.
