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