Honeywell VisionPRO TH8110U User manual

Operating Manual
6ISION02/¬4(¬3ERIES
Touchscreen Programmable Thermostat
69-1894ES-1

Read and save these instructions.
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 © 2007 Honeywell International Inc. All rights reserved.
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
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)

1
About your new thermostat
Thermostat features.............................. 2
Programming at a glance ..................... 3
Quick reference to controls .................. 4
Quick reference to status display ........ 5
Programming & Operation
Clock setting.......................................... 6
Fan setting............................................. 7
System setting....................................... 8
Using program schedules..................... 9
Program schedule overrides .............. 12
Vacation hold....................................... 14
Special features................................... 15
Screen lock.......................................... 16
Screen cleaning................................... 17
Humidity display & control.................. 18
Appendices
Battery installation .............................. 20
Advanced functions ............................ 21
In case of difficulty.............................. 26
Optional remote sensors .................... 28
Limited warranty.................................. 29
This thermostat is ready to go!
Your new thermostat is pre-
programmed and ready to go.
See page 3 to check settings.
Table of contents
CAUTION: EQUIPMENT DAMAGE
HAZARD. To prevent possible
compressor damage, do not oper-
ate cooling system when outdoor
temperature is below 50˚F (10˚C).
VisionPRO® TH8000 Series

Operating Manual
2
About your new thermostat
Congratulations! You’ve just purchased the world’s most advanced, easy-to-use ther-
mostat. It has been designed to give you many years of reliable service and touch-
screen 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.

VisionPRO®TH8000 Series
3
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 6
2. Select fan setting: Preset to Auto..............................................................See page 7
3. Select system setting: Preset to Heat ......................................................See page 8
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 10-13
ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time,
and manually adjust the temperature (see pages 12-14).
This thermostat is ready to go!

Operating Manual
4
SCHED HOLD CLOCK SCREEN MORE
MON TUE WED THU FRI SAT SUN
AM
FAN
AUTO
SYSTEM
HEAT
Following
Schedule
Inside Set To
OK TO PICK MULTIPLE DAYS
70
6:01
70
Press day(s) to set program schedule (see page 11)
Press to select fan
operation (see page 7)
Press to select system
type (see page 8)
Press to set program
schedule (see page 11)
Press to adjust
temperature settings
(see pages 11-14)
Press for more options
(select models only)
Press to override
program schedule
(see pages 12-14)
Press to set clock
(see page 6)
Press to lock keypad for 30
seconds to clean screen
(see page 17)
Quick reference to controls

VisionPRO®TH8000 Series
5
SCHED HOLD CLOCK SCREEN MORE
WED
AM
FAN
AUTO
SYSTEM
HEAT
Following
Schedule
Inside Set To
Recovery
70
6:01
70
Current inside temperature Current day of week Temperature setting
Program schedule on
(does not display
when off)
Fan setting
Other display messages:
• Cool On: Cooling system is activated
• Heat On: Heating system is activated
• Aux Heat On: Auxiliary heating system is activated
Quick reference to status display
System setting
Current time
Adaptive Intelligent
Recovery in effect
(see page 15)

Operating Manual
6
To set the current time display, press #,/#+,
then press  or  to adjust the time. Press
and hold  or  to advance the time more
quickly.
Press $/.% to save & exit (or press #!.#%, 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 22.
Press #,/#+
Adjust time, then press $/.%
SCHED HOLD CLOCK SCREEN MORE
AM
6:01
DONE CANCEL
AM
6:02
Clock setting

VisionPRO®TH8000 Series
7
Press &!. to select fan operation, then press
$/.%
• 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 &!. 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 &!. again to select Auto (see page 27
for more information).
Press &!.
SCHED HOLD CLOCK SCREEN MORE
WED
AM
HEAT
Following
Schedule
Inside Set To
70
6:01
70
FAN
AUTO
Fan setting
Note: If a fan schedule is programmed,
“Auto” will run the fan schedule.

Operating Manual
8
SCHED HOLD CLOCK SCREEN MORE
WED
AM
Following
Schedule
Inside Set To
70
6:01
70
FAN
AUTO
HEAT
Press the 3934%- button to select, then press
$/.%.
• 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
System setting

VisionPRO®TH8000 Series
9
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).
WAKE
6:00 am
70 °
LEAVE
8:00 am
62 °
RETURN
6:00 pm
70 °
SLEEP
10:00 pm
62 °

Operating Manual
10
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.)
Wake
(6:00 am)
Leave
(8:00 am)
Return
(6:00 pm)
Sleep
(10:00 pm)
Cool (Mon-Fri)Heat (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun)
70 °78 °70 °78 °
62 °85 °62 °
[Or cancel period]
85 °
[Or cancel period]
70 °78 °70 °
[Or cancel period]
78 °
[Or cancel period]
62 °82 °62 °82 °
EnergyStar®settings for maximum cost savings

VisionPRO®TH8000 Series
11
To adjust program schedules
1. Press 3#(%$,then %$)4.
2. Press day buttons (-/.35.) 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 (,%!6%, 2%452.,
3,%%0) to set time and temperatures for
each.
6. Press $/.% to save & exit (or press #!.#%,
to exit without saving changes).
Note: You can press #!.#%,¬0%2)/$ to eliminate any
unwanted time period.
Note: Press &!. to customize fan settings for any
time period (see page 7).
Set time for program
period to start
Press %$)4
Select day(s) Set heat/cool levels
SCHED HOLD CLOCK SCREEN MORE
DONE WAKE LEA E RETURN SLEEED T CANCEL
Press 3#(%$
DONE WAKE LEA E RETURN SLEE CANCEL
MON TUE WED THU R SAT SUN
AM
CANCEL
ER OD
HEAT
COOL
A
70
6:00
78
FAN
AUTO

Operating Manual
12
Program schedule override (temporary)
Press  or  to immediately adjust the tem-
perature. 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 #!.#%,¬(or 3#(%$). The program schedule
will resume.
Adjust temperature
Press to set timer
Press #!.#%, (or 3#(%$) to
resume program schedule
et n
SCHED HOLD CLOCK SCREEN MORE CANCEL
WED
AM
Inside
old e e u e
nil
Set To
73
8:00
70
FAN
AUTO
HEAT

VisionPRO®TH8000 Series
13
Program schedule override (permanent)
Press (/,$¬ Adjust temperature Press (/,$ 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 #!.#%, (or 3#(%$) to cancel
“Hold” and resume the program schedule.
Press #!.#%, (or 3#(%$) to
resume program schedule
et n
SCHED HOLD CLOCK SCREEN MORE CANCEL
WED
AM
Inside Set To
e nen
old
73
8:00
70
FAN
AUTO
HEAT

Operating Manual
14
Vacation hold
This feature can suspend the program sched-
ule 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 (/,$ twice, then press  or to select
the number of days.
Whatever temperature you set will be main-
tained 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
#!.#%, (or 3#(%$) to cancel “Hold” and resume
the program schedule.
1. Set temperature
2. Press to set time for
schedule to resume
3. Press (/,$ twice
4. Press to select number of days
SCHED HOLD CLOCK SCREEN MORE CANCEL
M
Inside
old e e u e
nil
Set To
55
6:00
70
FAN
AUTO
HEAT
SCHED HOLD CLOCK SCREEN MORE CANCEL
DA S
old e e u e
nil
14
HEAT

VisionPRO®TH8000 Series
15
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 tempera-
ture 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.

Operating Manual
16
Screen lock
To prevent tampering, the screen can be par-
tially or fully locked.
When partially locked, the screen displays
3#2%%.¬,/#+%$ for several seconds if a locked
key is pressed. To unlock the screen, press any
unlocked key while 3#2%%.¬,/#+%$ 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.
See advanced function
0670 (page 25) for
screen lock options
SCHED HOLD CLOCK SCREEN MORE
WED
M
Following
Schedule
Inside Set To
N
70
6:00
70
FAN
AUTO
HEAT

VisionPRO®TH8000 Series
17
Screen cleaning
Press 3#2%%. 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 $/.% to resume normal
operation, or press 3#2%%. 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.
Press 3#2%%.
Screen lock timer (30 seconds)
SCHED HOLD CLOCK SCREEN MORE
M
6:00
ANN
30

Operating Manual
18
About your new thermostatHumidity level display (select models)
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 -/2% to display the
humidity level.)
Indoor humidity level
SCHED HOLD CLOCK SCREEN MORE
WED
M
FAN
AUTO
HEAT
Following
Schedule
Inside Set To
idit
70
6:00
70
43