Operating
Manual
VisionPRO® TH8000 Series
Touchscreen Programmable Thermostat
BE CAREFUL! Never use sharp instruments, such as a pencil or pen, to press touchscreen keys. To prevent damage to the thermostat, always press keys with your fingertip.
This manual covers the following models
TH8110U: For 1 Heat/1 Cool systems TH8320U: For up to 3 Heat/2 Cool systems
TH8321U: For up to 3 Heat/2 Cool systems with dehumidification (Pull thermostat from wallplate and turn over to find model number)
Need Help?
For assistance with this product please visit http://yourhome.honeywell.com or call Honeywell Customer Care toll-free at 1-800-468-1502
® U.S. Registered Trademark.
US Patent No. 6595430, D509151 and other patents pending. Copyright © 2006 Honeywell International Inc.
All rights reserved.
VisionPRO® TH8000 Series
Table of contents |
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About your new thermostat |
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Thermostat features .......................... |
2 |
Programming at a glance.................. |
3 |
Quick reference to controls .............. |
4 |
Quick reference to status display .... |
5 |
Programming & Operation |
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Clock setting |
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Fan setting |
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System setting |
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Using program |
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Program schedule |
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Vacation hold |
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Special features |
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Screen lock ...................................... |
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Screen cleaning .............................. |
17 |
Humidity display & control .............. |
18 |
This thermostat is ready to go!
Your new thermostat is preprogrammed and ready to go. See page 3 to check settings.
CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C).
1
Operating Manual
About your new thermostat
Congratulations! You’ve just purchased the world’s most advanced, easy- to-use thermostat. It has been designed to give you many years of reliable service and touchscreen climate control.
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.
2
VisionPRO® TH8000 Series
This thermostat is ready to go!
Your new thermostat is pre-programmed and ready to go. All you have to do is set the time and day. Then check the settings below and change if needed:
1 |
Set clock...................................................................................... |
See page 6 |
2 |
Select fan setting: Preset to Auto ........................ |
To change, see page 7 |
3 |
Select system setting: Preset to Heat .................. |
To change, see page 8 |
4Program schedules: Preset to energy-saving levels while you’re at work or asleep (assumes you
wake at 6 am, leave at 8 am, return at 6 pm
and go to bed at 10 pm) .................................. |
To change, see pages 10-13 |
ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time, and manually adjust the temperature (see pages 12-14).
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Operating Manual
Quick reference to controls
Press day(s) to set program schedule (see page 11)
Press to select fan
operation (see page 7) |
MON |
TUE |
WED |
THU |
FRI |
SAT SUN |
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OK TO PICK MULTIPLE DAYS |
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Press to select system |
FAN |
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Inside |
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Set To |
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AUTO |
70 |
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70 |
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type (see page 8) |
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SYSTEM |
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Following |
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Schedule |
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HEAT |
6:01 AM |
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Press to set program |
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schedule (see page 11) |
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SCHED |
HOLD |
CLOCK |
SCREEN |
MORE |
Press to adjust temperature settings (see pages 11-14)
Press for more options (select models only)
Press to override |
Press to set clock |
Press to lock keypad for 30 |
program schedule |
(see page 6) |
seconds to clean screen |
(see pages 12-14) |
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(see page 17). |
4
VisionPRO® TH8000 Series
Quick reference to status display
Current inside temperature |
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Current day of week |
Temperature setting |
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WED |
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FAN |
70 |
Set To70 |
Program schedule on |
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Fan setting |
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(does not display |
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AUTO |
Inside |
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Following |
when off) |
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SYSTEM |
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Schedule |
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System setting
Recovery |
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HEAT |
Adaptive Intelligent |
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6:01 AM |
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Recovery in effect (see |
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SCHED HOLD CLOCK SCREEN MORE |
page 15) |
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Current time |
Other display messages: |
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• Cool On: Cooling system is activated |
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• Heat On: Heating system is activated |
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• Aux Heat On: Auxiliary heating system is activated |
5
Operating Manual
Clock setting
Press CLOCK |
To set the current time display, |
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press clock, then press |
or |
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6:01 AM |
to adjust the time. Press and |
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hold |
or |
to advance the time |
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more quickly. |
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Press DONE to save & exit (or press |
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CANCEL to exit without changing |
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the time). |
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Note: The real-time clock should never |
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6:02AM |
require adjustment since it automatically |
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updates for daylight savings time, and |
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DONE |
stores all date/time information. |
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CANCEL |
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Note: To change the current week day display, see page 22.
6
VisionPRO® TH8000 Series
Fan setting
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WED |
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FAN |
Inside70 |
Set To70 |
AUTO |
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Following |
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Schedule |
6:01 AM
SCHED HOLD CLOCK SCREEN MORE
Press FAN
Press FAN to select fan operation:
•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. Use this setting for improved air circulation, or for more efficient air cleaning, if you do not want the fan to run all the time.
You can press FAN at any time 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.
7
Operating Manual
System setting
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WED |
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FAN |
Inside70 |
Set To70 |
AUTO |
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SYSTEM |
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Following |
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Schedule |
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HEAT |
6:01 AM |
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SCHED HOLD CLOCK SCREEN MORE
Press the SYSTEM button to select:
•Heat: Thermostat controls only the heating system.
•Cool: Thermostat controls only the
are
•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
8
VisionPRO® TH8000 Series
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.
WAKE
6:00 am
70 °
LEAVE
8:00 am
62 °
RETURN
6:00 pm
70 °
SLEEP
10:00 pm
62 °
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).
9
Operating Manual
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.)
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Heat (Mon-Fri) |
Cool (Mon-Fri) |
Heat (Sat-Sun) |
Cool (Sat-Sun) |
Wake |
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70 ° |
78 ° |
70 ° |
78 ° |
(6:00 am) |
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Leave |
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62 ° |
85 ° |
62 ° |
85 ° |
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(8:00 am) |
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[Or cancel period] |
[Or cancel period] |
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Return |
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70 ° |
78 ° |
70 ° |
78 ° |
(6:00 pm) |
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[Or cancel period] |
[Or cancel period] |
Sleep |
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62 ° |
82° |
62 ° |
82° |
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(10:00 pm) |
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10
VisionPRO® TH8000 Series
To adjust program schedules
Press SCHED
SCHED HOLD CLOCK SCREEN MORE
Press EDIT
DONE EDIT WAKE LEAVE RETURN SLEEP CANCEL
Select |
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Set heat/cool levels |
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MON |
TUE WED |
THU |
FRI |
SAT |
SUN |
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OK TO PICK MULTIPLE DAYS |
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FAN |
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70 |
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AUTO |
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HEAT |
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CANCEL |
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PERIOD |
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6:00 AM |
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78 |
COOL |
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DONE |
WAKE |
LEAVE |
RETURN |
SLEEP |
CANCEL |
Set time for program period start
1Press SCHED, then EDIT.
2Press day buttons (MON-SUN) to select day(s).
3Press 
or 
to set Wake time for selected day(s).
4Press 
or 
to set Heat and Cool temperature for this time period.
5Press other time periods (LEAVE, RETURN, SLEEP) to set time and temperatures for each.
6Press DONE to save & exit (or press CANCEL to exit without saving changes).
Note: You can press CANCEL PERIOD to eliminate any unwanted time period.
Note: Press FAN to customize fan settings for any time period (see page 7).
11
Operating Manual
Program schedule override (temporary)
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Adjust temperature |
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WED |
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FAN |
70 |
Set To73 |
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AUTO |
Inside |
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Heat On |
SYSTEM
Hold Temperature
Until
HEAT
8:00 AM 
SCHED HOLD CLOCK SCREEN MORE CANCEL
Press to set timer
Press CANCEL (or SCHED) to resume program schedule
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 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.
12
VisionPRO® TH8000 Series
Program schedule override (permanent)
Press HOLD |
Adjust temperature |
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WED |
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FAN |
70 |
Set To73 |
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AUTO |
Inside |
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Heat On |
SYSTEM |
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HEAT |
8:00 AM |
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Permanent |
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Hold |
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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.
SCHED HOLD CLOCK SCREEN MORE CANCEL
Press CANCEL (or SCHED) to resume program schedule
13
Operating Manual
Vacation hold
1 Set temperature
FAN |
Inside70 |
Set To55 |
AUTO |
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SYSTEM |
Hold Temperature |
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HEAT |
Until |
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6:00pm |
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SCHED HOLD |
SCREEN MORE CANCEL |
2 Press to set time for schedule to resume
3 Press HOLD twice
SYSTEM |
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Hold Temperature |
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Until |
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HEAT |
DAYS |
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14 |
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SCHED HOLD |
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SCREEN MORE CANCEL |
4 Press to select |
of days |
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This feature can suspend the program schedule for extended periods of time.
Press |
or |
to set the temperature you |
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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.
14
VisionPRO® TH8000 Series
Special features
Auto Changeover: When set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature.
Adaptive Intelligent Recovery: This feature allows the thermostat to “learn” how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set. For example: Set the Wake time to 6 am, and the temperature to 70°. The heat will come on before 6 am, so the temperature is 70° by the time you wake at 6. The message “Recovery” is displayed when the system is activated before a scheduled time period.
Compressor Protection: This feature forces the compressor to wait a few minutes before restarting, to prevent equipment damage. During the wait time, the message “Wait” is displayed on screen.
15
Operating Manual
Screen lock
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WED |
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SCREEN LOCKED |
FAN |
Inside70 |
Set To70 |
AUTO |
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SYSTEM |
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Following |
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Schedule |
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HEAT |
6:00PM |
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SCHED HOLD CLOCK SCREEN MORE
See advanced function 0670 (page 25) for screen lock options
To prevent tampering, the screen can be partially or fully locked.
When partially locked, the screen displays for several seconds if a locked key is pressed. To unlock the screen, press any unlocked key while
appears on the screen.
When the screen is fully locked, no keys function. To lock or unlock the screen, see advanced function 0670 on page 25).
16
VisionPRO® TH8000 Series
Screen cleaning
Press SCREEN
6:00PM
SCHED HOLD CLOCK SCREEN MORE
Screen lock timer (30 seconds)
30 OKAY
CLEAN
SCREEN
Press SCREEN to lock the screen for cleaning. The screen will remain locked for 30 seconds so you can clean the screen without changing any settings.
After 30 seconds, press DONE to resume normal operation, or press SCREEN again if you require more time for cleaning.
Note: Do not spray any liquid directly on the thermostat. Spray liquids onto a cloth, then use the damp cloth to clean the screen. Use water or household glass cleaner. Avoid abrasive cleansers.
17
Operating Manual
Humidity level display (select models)
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WED |
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FAN |
Inside70 |
Set To70 |
AUTO |
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SYSTEM |
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Following |
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Schedule |
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HEAT |
6:00PM |
43 % |
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Humidity |
Select models can display the current indoor humidity level.
(If an optional outdoor sensor is installed, the outdoor temperature is shown instead of the humidity level. Press MORE to display the humidity level.)
SCHED HOLD CLOCK SCREEN MORE
Indoor humidity level
18
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