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 thermostat contains a Lithium battery which may contain
Perchlorate material.
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate.
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
Read and save these instructions.
US Patent No. 6,208,263; 6,373,376; 6,448,901; 6,595,430;
7,012,927; 7,044,397; D509151 and other patents pending.
Your new thermostat is preprogrammed and ready to go.
See page 2 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).
Operating Manual
About your new thermostat
Your new thermostat is pre-programmed and ready to go. Just set the time and day.
Then check the settings below and change if needed:
1. Set clock ........................................................................................................See page 5
2. Select fan setting: Preset to Auto ..............................................................See page 6
3. Select system setting: Preset to Heat ......................................................See page 7
4. Program 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) ........................................................................ See pages 8-11
5. Set humification, dehumidification
& ventilation controls, if applicable ............................................... See pages 17-19
ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time,
and manually adjust the temperature (see pages 10-11).
69-1815EFS—04 2
SCHED HOLD CLOCK SCREEN MORE
MON
TUEWEDTHUFRISATSUN
AM
FAN
AUTO
SYSTEM
HEAT
Following
Schedule
Inside
Set To
OK TO PICK MULTIPLE DAYS
70
6:01
70
Quick reference to controls
Press day(s) to set program schedule (see page 9)
VisionPRO® IAQ
Press to select fan
operation (see page 6)
Press to adjust
temperature settings
(see pages 9-11)
Press to select system
type (see page 7)
Press for more options
Press to set program
schedule (see page 9)
Press to override
program schedule
(see pages 10-11)
3 69-1815EFS—04
Press to set clock
(see page 5)
Press to lock keypad for 30
seconds to clean screen
(see page 14)
Operating Manual
SCHED HOLD CLOCK SCREEN MORE
WED
AM
FAN
AUTO
SYSTEM
HEAT
Following
Schedule
Inside
Set To
Recovery
Humidity
70
6:01
70
55
Quick reference to status display
Current inside temperatureCurrent day of weekTemperature setting
Program schedule on
Fan setting
System setting
Current time
Other display messages:
• Cool On: Cooling system is activated
• Heat On: Heating system is activated
• Aux Heat On: Auxiliary heating system is activated
• Wait: Compressor protection activated (see page 13)
• Screen Locked: See page 26 to unlock
69-1815EFS—04 4
(does not display
when off)
Adaptive Intelligent
Recovery in effect
(see page 13)
Inside humidity (If
an outdoor sensor is
installed, the outdoor
temperature is shown
instead of the humidity
level. Press MO RE to dis-
play the humidity level.)
SCHED HOLD CLOCK SCREEN MORE
WED
AM
FAN
AUTO
Inside
Set To
70
6:01
70
DONECANCEL
WED
AM
FAN
AUTO
Inside
Set To
70
6:02
70
Clock setting
VisionPRO® IAQ
Press CLOCK
Adjust time, then press DONE
5 69-1815EFS—04
To set the current time display, press CLOCK,
then press s or t to adjust the time. Press
and hold s or t to advance the time more
quickly.
Press DONE to save & exit (or press CANCEL to
exit without changing the time).
Note: The real-time clock should never require
adjustment since it automatically updates for
daylight savings time, and stores all date/time
information.
Note: To change the current week day display, see
page 21.
Operating Manual
SCHED HOLD CLOCK SCREEN MORE
WED
AM
SYSTEM
HEAT
Following
Schedule
Inside
Set To
70
6:01
70
FAN
AUTO
Fan setting
PressFAN
Note: If a fan schedule is programmed,
“Auto” will run the fan schedule.
69-1815EFS—04 6
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 9). If you select On or Circ, the
setting you select will remain active until you
press FAN again to select Auto, and return
to the fan schedule (see page 28 for more
information).
VisionPRO® IAQ
SCHED HOLD CLOCK SCREEN MORE
WED
AM
Following
Schedule
Inside
Set To
70
6:01
70
FAN
AUTO
SYSTEM
HEAT
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.
Press SYSTEM
7 69-1815EFS—04
• Em Heat (only for heat pumps with
auxiliary heat): Thermostat controls
Auxiliary Heat. Compressor is not used.
Operating Manual
EnergyStar® settings for maximum cost savings
It’s easy to program your system for maximum energy savings. You can program four
time periods each day, with different settings for each day.
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.)
4. Press s or t to set Heat and Cool
temperature for this time period.
Select day(s) Set heat/cool levels
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).
Set time for program
period to start
9 69-1815EFS—04
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 6).
Operating Manual
Heat On
SCHED HOLD CLOCK SCREEN MORE
CANCEL
WED
AM
HEAT
COOL
Inside
Hold Temperature
Until
Set To
73
8:00
70
78
FAN
AUTO
SYSTEM
HEAT
Program schedule override (temporary)
Adjust temperature
Press to set timer
69-1815EFS—04 10
Press CANCEL (or SCHED) to
resume program schedule
Press s or t 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)
Heat On
SCHED HOLD CLOCK SCREEN MORE
CANCEL
WED
AM
Inside
Set To
Permanent
Hold
73
8:00
70
FAN
AUTO
SYSTEM
HEAT
VisionPRO® IAQ
Press HOLD Adjust temperature
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.
11 69-1815EFS—04
Press CANCEL (or SCHED) to
resume program schedule
Operating Manual
SCHED HOLD CLOCK SCREEN MORE
CANCEL
WED
PM
Inside
Hold Temperature
Until
Set To
55
6:00
70
FAN
AUTO
SYSTEM
HEAT
SCHED HOLD CLOCK SCREEN MORE
CANCEL
WED
Inside
DAYS
Hold Temperature
Until
Set To
55
14
70
FAN
AUTO
SYSTEM
HEAT
Vacation hold
1 Set temperature
2 Press to set time for
3 Press HOLD twice
4 Press to select number of days
69-1815EFS—04 12
schedule to resume
This feature can suspend the program schedule for extended periods of time.
Press s or t to set the temperature you want,
then press s or t to set the time of day you
want the schedule to resume when you return.
Press HOLD twice, then press s or t 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.
VisionPRO® IAQ
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.
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.
Flashing message: Reminder to replace filter or UV lamp. After replacement, press
RESET to reactivate the alert timer.
Southern Away Dehumidification: Your system may be programmed to control
humidity while your house is vacant during the humid season. Before you leave the
house, press the HOLD button three times to activate this feature. This will control
temperature and humidity to help protect your house and possessions while you are
away. (If this feature does not work, contact your installer.)
13 69-1815EFS—04
Operating Manual
SCHED HOLD CLOCK SCREEN MORE
WED
PM
Following
Schedule
Inside
Set To
SCREEN LOCKED
70
6:00
70
43
FAN
AUTO
SYSTEM
HEAT
Screen lock
See advanced function
0670 (page 26) for
screen lock options
69-1815EFS—04 14
To prevent tampering, the screen can be partially or fully locked.
When partially locked, the screen displays
SCREEN LOCKED for several seconds if a locked
key is pressed.
When the screen is fully locked, no keys
function. To lock or unlock the screen, see
advanced function 0670 on page 26.
Screen cleaning
SCHED HOLD CLOCK SCREEN MORE
WED
PM
FollowingSchedule
Inside
Set To
SCREEN LOCKED
70
6:00
70
FAN
AUTO
SCHED HOLD CLOCK SCREEN MORE
OK TO
CLEAN
SCREEN
30
VisionPRO® IAQ
Press 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
Screen lock timer (30 seconds)
15 69-1815EFS—04
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.
Operating Manual
SCHED HOLD CLOCK SCREEN MORE
WED
AM
Following
Schedule
Inside
Outside
Set To
70
6:01
70
43
FAN
AUTO
SYSTEM
HEAT
Optional remote sensors
Inside Outside
temperature temperature
69-1815EFS—04 16
If an outdoor sensor is installed, the current
outdoor temperature is displayed.
If an indoor remote sensor is installed, the display shows the indoor temperature at the location of the sensor.
If more than one indoor sensor is installed, the
display shows an average of temperature readings from all sensors or an average between
the thermostat and the sensor(s).
Humidification control
DONECANCEL
DEHUMIDIFIER
Inside
FROST
5
32
55
VisionPRO® IAQ
Set Frost Control & humidity level
Press to save & exit
Press MORE until the humidifier screen is displayed, then press s or t to set the humidity
and Frost Control level.
When using Frost Protection, if frost/condensation appears on windows, lower the frost
setting. Wait at least 1 day before adjusting the
frost level again. Once frost no longer appears,
the thermostat will control humidity to the
maximum level without frosting or fogging windows and without further adjustment.
Press DONE to save and exit, or press CANCEL to
exit without saving changes.
Note: If you do not have an outdoor temperature
sensor, the Frost Control level will not be displayed.
17 69-1815EFS—04
Operating Manual
DONECANCEL
DEHUMIDIFIER
Inside
AUTO
73
55
Dehumidification control
Press to select
Auto or Off
Press to save & exit
Note: Auto/Off only present
when using a whole house
dehumidifier (not present when
dehumidifying with A/C).
69-1815EFS—04 18
Press to set
desired humidity
Press MORE until the dehumidifier screen is displayed, then press s or t to set the desired
humidity level and operation (Auto or Off).
If installed to control a dehumidifier, the thermostat can activate it as needed to reduce
humidity.
If you don’t have a dehumidifier, the thermostat
activates the air conditioner to reduce humidity
(may cool as much as 3°F lower than your temperature setting).
Press DONE to save and exit, or press CANCEL to
exit without saving changes.
Ventilation control
DONECANCEL
VENT
Minutes
AUTO
40
VisionPRO® IAQ
Press to set ventilation timer
Press to save & exit
19 69-1815EFS—04
You can ventilate your home at any time:
Press MORE until the ventilation screen is dis-
played, then press s or t to set the ventilation timer. You can set the timer to ventilate
from 20 to 180 minutes, in 20-minute increments. To turn off the ventilator, select 0.
Press DONE to save and exit, or press CANCEL to
exit without saving changes.
If programmed for auto-ventilation by the
installer, the thermostat will ventilate your
home as needed.
Auto/Off will turn off/on the automatic ventilation only. Ventilation can still be requested by
using the timer when set to Off.
Operating Manual
SCHED HOLDSCREENMORE
TUE
AM
FollowingSchedule
Inside
Outside
Set To
70
6:01
70
43
FAN
AUTO
SYSTEM
HEAT
DONE
TUE
Inside
Set To
70
0120
70
20
FAN
AUTO
DONECANCEL
TUE
AM
Inside
Set To
70
6:01
70
FAN
AUTO
SYSTEM
HEAT
Advanced functions
1 Press SYSTEM.
2 Press and hold
blank center key
until the display
changes.
3 Change settings as
required (see pages
21-26).
69-1815EFS—04 20
4 Press DONE to exit &
save changes.
Function Setting
Press s/t to
select function
Press s/t to
change setting
VisionPRO® IAQ
Advanced functions
Year setting (first two digits)
Function
0120
Options:20 = Year 20xx
Year setting (second two digits)
Function
0130
Options:01 - 99(i.e., 2001 - 2099)
Month setting
Function
0140
Options:01 - 12(i.e., January - December)
Date setting
Function
0150
Options:01 - 31
21 69-1815EFS—04
Press s/t to change the first two digits of the year:
21 = Year 21xx
Press s/t to change the last two digits of the year:
Press s/t to change the current month:
Press s/t to change the current date:
Operating Manual
Advanced functions
Program schedule on/off
Function
0160
Options:0Program schedule is off. Thermostat is non-programmable.
Restore Energy Star® schedule
Function
0165
Options:0No change
Backlight
Function
0280
Options:0Light on for approx. 45 seconds after keypress
69-1815EFS—04 22
Press s/t to turn the program schedule on or off:
4Program schedule is on (7-day programmable).
Press s/t to restore default Energy Star settings:
1 Restore factory default Energy Star settings
Press s/t to select how the screen is lighted:
1 Light always on low intensity, full bright after keypress
VisionPRO® IAQ
Advanced functions
Temperature format (°F/°C)
Function
0320
Options:0Fahrenheit
Daylight savings time on/off
Function
0330
Options:0Off: No adjustment for daylight savings time
Ventilation control
Function
0400
Options:0No ventilation
23 69-1815EFS—04
Press s/t to set the temperature display format:
1 Celsius
The thermostat is pre-programmed to automatically adjust to daylight savings time.
Press s/t to select an option:
1 On: Auto-change to daylight savings time (through 2006, and for areas that do
not use the new 2007 DST calendar)
2 On: Auto-change to daylight savings time (2007 and beyond, for areas that use
the new 2007 DST calendar)
Press s/t to set ventilation control:
1Ventilation allowed at any time
2Ventilation allowed at any time except during Sleep period
Operating Manual
Advanced functions
Furnace filter change reminder
Function
0500
Options:0Off
69-1815EFS—04 24
This feature displays an alert to remind you to change the furnace filter.
Press s/t to set the desired reminder interval:
110-day run time
230-day run time
3 60-day run time
4 90-day run time
5 120-day run time
6 180-day run time
7 270-day run time
8 365-day run time
9 30 calender days
10 60 calender days
11 90 calender days
12 120 calender days
13 180 calender days
14 365 calender days
E Auto Alert (requires optional equipment)
Note: Press RESET
to cancel the alert
VisionPRO® IAQ
Advanced functions
Humidifier pad change reminder
Function
0510
Options:0Off (no reminder to change humidifier pad)
UV lamp change reminder
Function
0520
Options:0Off (no reminder to change UV lamp)
Adaptive Intelligent Recovery
Function
0530
Options:0Off
25 69-1815EFS—04
This feature displays an alert to remind you to change the humidifier pad.
Press s/t to set the desired interval:
130-day run time, 90 calendar days **
260-day run time, 180 calendar days **390-day run time, 365 calendar days ****interval depends on humidifier
EAuto Alert (requires optional equipment)
This feature displays an alert to remind you to change the ultraviolet lamp.
Press s/t to set the desired interval:
1Reminder after 1 year
2Reminder after 2 years
EAuto Alert (requires optional equipment)
Press s/t to turn this feature on or off (see page 13):
1On
Note: Press RESET
to cancel the alert
Note: Press RESET
to cancel the alert
Operating Manual
Advanced functions
Program schedule periods
Function
0540
Options:2Two program periods (Wake, Sleep)
Clock format
Function
0640
Options:1212-hour clock (i.e., “3:30 pm”)
Screen lock
Function
0670
Options:0Screen is unlocked (fully functional)
69-1815EFS—04 26
Press s/t to set the number of program periods:
4Four program periods (Wake, Leave, Return, Sleep)
Press s/t to set the clock display format:
2424-hour clock (i.e., “15:30”)
Press s/t to choose a screen lock setting (see page 14):
1All functions locked except temperature controls and CANCEL key
2Screen is fully locked
VisionPRO® IAQ
In case of difficulty
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Check circuit breaker and reset if necessary.
• Make sure power switch at heating & cooling system is on.
• Make sure furnace door is closed securely.
No response to
key presses (or
temperature will
not change)
Backlight is dim• A dim display is normal. See Advanced function 0280 on page 22 for
• Check to make sure the thermostat is not locked (see page 26).
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat: 40° to 90°F (4.5° to 32°C)
• Cool: 50° to 99°F (10° to 37°C)
backlight options.
“Err” appears
on screen
27 69-1815EFS—04
• Contact your contractor. Your equipment may need service or repair.
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