Installation Guide

Touch-screen Programmable Thermostat
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)

System Types

Gas, oil, or electric heat with air conditioning Warm air, hot water, highefficiency furnaces, heat pumps, steam, gravity
This thermostat contains a Lithium battery which may contain Perchlorate material. Perchlorate Materialspecial handling may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate
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.

Cool only

Need Help?
Heat only two-wire systems, power to open and close zone valves (Series 20), and normallyopen zone valves Heat only with fan 750 mV heating systems

69-1896EF-1

VisionPRO TH8000 Series

Wallplate installation

1. Separate wallplate from thermostat. 2. Mount wallplate as shown below. Grasp top and bottom of wallplate and pull to remove from thermostat.

Wall anchors

Must be installed by a trained, experienced technician
Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.
CAUTION: ELECTRICAL HAZARD Can cause electrical shock or equipment damage. Disconnect power before beginning installation. MERCURY NOTICE If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.

Wire hole

Drill 3/16 holes for drywall. Drill 7/32 holes for plaster.

Mounting screws

Power options
For 24VAC primary power, connect common side of transformer to C terminal.

Wiring

Remove factory-installed jumper only for two-transformer systems.
Terminal Designations Shaded areas below apply only to TH8320/TH8321.
Conventional Terminal Letters: R Heating power. Connect to secondary side of heating system transformer. Rc Cooling power. Connect to secondary side of cooling system transformer. C Common wire from secondary side of cooling transformer (if 2 transformers). W 1st stage heat relay. W2 2nd stage heat relay. Y 1st stage compressor contactor. Y2 2nd stage compressor contactor. G Fan relay. S1 Optional outdoor or remote sensor. S2 Optional outdoor or remote sensor. Heat Pump Terminal Letters: R Heating power. Connect to secondary side of heating system transformer. Rc Cooling power. Connect to secondary side of cooling system transformer. C Common wire from secondary side of cooling system transformer. Y 1st stage compressor contactor. Y2 2nd stage compressor contactor. Aux Auxiliary heat relay. G Fan relay. E Emergency heat relay. L Heat pump reset (powered continuously when System is set to Em Heat; system monitor when set to Heat, Cool or Off). O/B Changeover valve for heat pumps. S1 Optional outdoor or remote sensor. S2 Optional outdoor or remote sensor.
Push excess wire back into the wall opening. Plug wall opening with non-flammable insulation.
Insert supplied batteries for primary or backup power.
Wiring guideconventional systems
Shaded areas below apply only to TH8320/TH8321.
1H/1C System (1 transformer)
Rc R W Y G C S1 S2 Power [1] [R+Rc joined by jumper] Heat relay Compressor contactor Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor
1H/1C System (2 transformers)
Rc R W Y G C S1 S2 Power (cooling transformer) [1, 2] Power (heating transformer) [1, 2] Heat relay Compressor contactor Fan relay 24VAC common [3, 4] Optional outdoor/remote sensor Optional outdoor/remote sensor

Heat Only System

Rc R W C S1 S2 Power [1] [R+Rc joined by jumper] Heat relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor

Heat Only System With Fan

Rc R W G C S1 S2

Heat Only System (Series 20)

Rc R W Y C S1 S2

2H/2C System (1 transformer)

Y2 W2 Rc R W Y G C S1 S2

[R+Rc joined by jumper] Series 20 valve terminal R [1] Series 20 valve terminal B Series 20 valve terminal W 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor

[1] [2] [3] [4]

Cool relay 2 Heat relay 2 Power [1] [R+Rc joined by jumper] Heat relay 1 Cool relay 1 Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor

See [notes] below

Power supply. Provide disconnect means and overload protection as required. Remove jumper for 2-transformer systems. Optional 24VAC common connection. Common connection must come from cooling transformer.

Cool Only System

Rc R Y G C S1 S2 Y2 W2 Rc R W Y G C S1 S2
2H/2C System (2 transformers)
Cool relay 2 Heat relay 2 Power (cooling transformer) [1, 2] Power (heating transformer) [1, 2] Heat relay 1 Cool relay 1 Fan relay 24VAC common [3, 4] Optional outdoor/remote sensor Optional outdoor/remote sensor
Power [1] [R+Rc joined by jumper] Heat relay Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor
Power [1] [R+Rc joined by jumper] Compressor contactor Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor
Wiring guideheat pump systems
1H/1C Heat Pump (no auxiliary heat)
Rc R O/B Y G C S1 S2 Power [1] [R+Rc joined by jumper] Changeover valve [5] Compressor relay Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor
2H/2C Heat Pump (no auxiliary heat)
Y2 Rc R O/B Y G C S1 S2 Compressor 2 relay Power [1] [R+Rc joined by jumper] Changeover valve [5] Compressor 1 relay Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor
2H/1C Heat Pump (with auxiliary heat)
L E Aux Rc R O/B Y G C S1 S2 Equipment monitor [6, 7] Emergency heat relay [8] Auxiliary heat relay (Heat 2) [8] Power [1] [R+Rc joined by jumper] Changeover valve [5] Compressor relay Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor
3H/2C Heat Pump (with auxiliary heat)
Y2 L E Aux Rc R O/B Y G C S1 S2 Compressor 2 relay Equipment monitor [6, 7] Emergency heat relay [8] Auxiliary heat relay (Heat 2) [8] Power [1] [R+Rc joined by jumper] Changeover valve [5] Compressor 1 relay Fan relay 24VAC common [3] Optional outdoor/remote sensor Optional outdoor/remote sensor

[1] [3] [5] [6] [7]

Power supply. Provide disconnect means and overload protection as required. Optional 24VAC common connection. O/B set to control as either O or B in installer setup. If L terminal is used, 24VAC common (terminal C) must be connected. Heat pump reset (powered continuously when thermostat is set to Em. Heat; system monitor when set to Heat, Cool, or Off). [8] Install field jumper between Aux and E terminals if there is no emergency heat relay.

Remove tab and mount thermostat

Remove tab.

Align pins on back of thermostat with slots in wallplate, then push gently until thermostat snaps into place.

Set date and time

Press st to set date Press st to set month Press st to set year

Press st to set time

1:00 PM
Press DONE to save changes.
Press DONE to save and exit.

Installer setup

Press SYSTEM.
Press and hold these two buttons until the display changes.

SYSTEM

6:00aM

Inside

CANCEL
Change settings as required (see pages 7-9).

Function

Setting
Press st to select function
Press st to change setting
Press DONE to exit & save settings.
Shaded areas below apply only to TH8320/TH8321. Year (first two digits) Year (second two digits) Month Date Schedule format System type
20 (2000-2078) 21 (2101-2178)
0180 Fan control (heating) Changeover valve (O/B terminal) Auxiliary heat External fossil fuel kit 1st stage compressor cycle rate 2nd stage compressor cycle rate
6 [Other options: 1-12] 15 [Other options: 1-31] 4 7-day programming 0 Non-programmable Electric backup heat 1 Fossil fuel backup heat
06 (2006) [Other options: 00-99]
1 heat/1 cool conventional 1 heat/1 cool heat pump (no aux. heat) Heat only (2-wire systems) Heat only with fan Hot water Series 20 system (power to open & close zone valves/normally open zone valves) 6 Cool only heat/1 cool heat pump (with aux. heat) heat/2 cool multistage conventional heat/1 cool multistage conventional heat/2 cool multistage conventional heat/2 cool heat pump (no aux. heat) heat/2 cool heat pump (with aux. heat) 0 Gas/Oil heat (equipment controls heating fan) 1 Electric furnace (thermostat controls heating fan) 0 O/B terminal controls valve in cooling 1 O/B terminal controls valve in heating
1 External fossil fuel kit controls backup heat 0 Thermostat controls backup heat (outdoor sensor required) 3 Recommended for most compressors [Other options: 1, 2, 4, 5 or 6 CPH] 3 Recommended for most compressors [Other options: 1, 2, 4, 5 or 6 CPH] Continued on next page

Setup functions

Settings & Options
(factory default in bold)
Setup functions Settings & Options
Shaded areas below apply only to TH8320/TH8321. 0240 First stage heat cycle rate (CPH= cycles per hour) Gas or oil furnaces of less than 90% efficiency Steam or gravity systems Hot water systems & furnaces of 90%+ efficiency Electric furnaces [Other options: 2, 4, 6, 7, 8, 10, 11, 12 CPH] Gas or oil furnaces of less than 90% efficiency Steam or gravity systems Hot water systems & furnaces of 90%+ efficiency Electric furnaces [Other options: 2, 4, 6, 7, 8, 10, 11, 12 CPH] Electric auxiliary heat or electric furnaces Steam or gravity systems Hot water systems & furnaces of 90%+ efficiency Gas or oil furnaces of less than 90% efficiency [Other options: 2, 4, 6, 7, 8, 10, 11, 12 CPH] Electric emergency heat Steam or gravity systems Hot water systems & furnaces of 90%+ efficiency Gas or oil furnaces of less than 90% efficiency [Other options: 2, 4, 6, 7, 8, 10, 11, 12 CPH]

Second stage heat cycle rate (CPH)
Third stage heat cycle rate (CPH)

Backlight

Manual/Auto changeover
Auto changeover deadband Temperature display
0330 Daylight savings 0340 Remote sensor 0380 Heat pump compressor lockout Heat pump auxiliary lockout Dehumidification control

0 Fahrenheit 1 Celsius

Emergency heat cycle rate (CPH)
0 Backlight on for approx. 8 seconds after keypress 1 Backlight always on low intensity, full bright after keypress (requires 24VAC connection) 0 Manual changeover (Heat/Cool/Off) 1 Automatic changeover (Heat/Cool/Auto/Off) 3 Heat/cool temperature 3F apart (1.5C) * See page 11 * [Other options: 2-9 (2F to 9F/1C to 5C)]
2 Auto-change to daylight savings time (2007 and beyond, for areas that use the new 2007 DST calendar) 1 Auto-change to daylight savings time (through 2006, and for areas that do not use the new 2007 DST calendar) 0 Daylight savings time is turned off No remote sensor Outdoor sensor (display only) Outdoor control sensor (select heat pumps) ** See page 11 Indoor sensor
0 No heat pump compressor lockout [Other options: 15, 20, 25, 30, 35, 40F (-9.5C to 7C)] 0 No heat pump auxiliary lockout [Other options: 40, 45, 50, 55, 60F (4.5C to 15.5C)] 0 No dehumidification control 1 Thermostat controls dehumidification with air conditioner ** See page 11 Continued on next page
Furnace filter change reminder
Off 10-day run time (about 1 month) 30-day run time (about 3 months) 60-day run time (about 6 months) 90-day run time (about 9 months) 120-day run time (about 1 year) 365-day run time (about 3 years) Off 90 calendar days 180 calendar days 365 calendar days

0660 0670

UV lamp change reminder Adaptive Intelligent Recovery Program periods Compressor protection Heat temperature range stop Cool temperature range stop Clock format
0 Off calendar days 1 On 0 Off

** See page 11

Extended fan timer (cool) Keypad lock 0680 Heat temperature control Cool temperature control Temperature display offset RESET
Extended fan timer (heat)
program periods (Wake, Leave, Return, Sleep) program periods (Wake, Sleep) minute compressor off time ** See page 11 [Other options: 0, 1, 2, 3 or 4-minute off time] 90 Max. heat temperature setting is 90F (32C) [Other options: 40-89F (4C to 32C)] 50 Min. cool temperature setting is 50F (10C) [Other options: 51-99F (11C to 37C)] 12 12-hour time (i.e., 3:30 pm) 24 24-hour time (i.e., 15:30) 0 Off 90 Fan runs for 90 seconds after call for heat ends 0 Off 90 Fan runs for 90 seconds after call for cooling ends 0 Keypad unlocked (fully functional) 1 Partially locked (access to temperature settings only) 2 Fully locked 2 Standard temperature control (recommended) 1 Choose if room is warmer than set temperature 3 Choose if room does not reach set temperature 2 Standard temperature control (recommended) 1 Choose if room is cooler than set temperature 3 Choose if room does not reach set temperature Thermostat displays actual room temperature [Other options: -3, -2, -1, 1, 2, 3F offset (-1.5C to 1.5C)

0 No reset 1 Reset installer options & program schedule to factory default (only date and time settings are retained)
Humidifier pad change reminder

Installer system test

During installer setup, press t repeatedly until Test appears.

Test number

System status
Press st to change status
Press DONE to terminate testing.
Shaded areas below apply only to TH8320/TH8321. System test 1 Cooling system System status 1 2
Fan system Heating system
4 Emergency heating system
CAUTION: EQUIPMENT DAMAGE HAZARD. Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.
Compressor and fan turn off Compressor and fan turn on Second stage compressor turns on Fan turns off Fan turns on
Heat and fan turn off Heat turns on (fan on if Function 0170 is set for heat pump, or if Function 0180 is set to 1) ** See page 6 Second stage heat turns on Third stage heat turns on Heat and fan turn off Heat and fan turn on Second stage heat turns on (Auxiliary heat)]

Press st to select test

Special functions
Shaded areas below apply only to TH8320/TH8321. Auto Changeover (Setup Function 0300): When set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 2 degrees apart. If function 0380 is set to On, the heat and cool settings must be at least 5 degrees apart. Remote Sensor (Setup Function 0340): If an optional outdoor sensor is installed, the thermostat can display the outside temperature. If an optional remote indoor sensor is installed, the thermostat will display the temperature at the sensor location (the internal sensor in the thermostat is not used). Adaptive Intelligent Recovery (Setup Function 0530): 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 scheduled time.
Dehumidification control (Setup Function 0380): TH8321 models monitor the indoor humidity level and automatically activate the cooling system to reduce humidity by lowering the temperature by up to 3 degrees below the current cool setting. Heat Pump Temperature Lockout (with fossil-fuel backup): If the thermostat is installed with an optional outdoor sensor, you can select a compressor lockout temperature (Function 0350). When the outdoor temperature is below the lockout temperature, only the auxiliary heat operates. When the outdoor temperature is above the lockout temperature, only the compressor operates. Heat Pump Temperature Lockouts (with electric heat backup): If the thermostat is installed with an optional outdoor sensor, you can select a compressor lockout temperature (Function 0350) and/or an auxiliary heat lockout temperature (Function 0360). When the outdoor temperature is below the compressor lockout temperature, only the auxiliary heat operates. When the outdoor temperature is above the auxiliary lockout temperature, only the compressor operates. If the outdoor temperature is between the compressor and auxiliary lockout temperatures, both the compressor and auxiliary heat can operate.

Accessories & replacement parts
Please contact your distributor to order replacement parts.
Outdoor temperature sensor. Part Number C7089U1006 Remote indoor temperature sensor. Part Number C7189U1005 Cover plate*... Part Number 32003796-001 *(Use to cover marks left by old thermostats.)
Compressor Protection (Setup Function 0580): Forces the compressor to wait a few minutes before restarting, to prevent damage. During this time, the message Wait flashes on the display.

Specifications

Temperature Ranges Heat: 40 to 90F (4.5 to 32C) Cool: 50 to 99F (10 to 37C) Operating Ambient Temperature 0 to 120F (-18 to 48.9C) Shipping Temperature -30 to 150F (-34 to 66C) Operating Relative Humidity 5% to 90% (non-condensing) Physical Dimensions 4-9/16 H x 6 W x 1-3/8 D 116 mm H x 152 mm W x 35 mm D Electrical Ratings Terminal W Heating (Powerpile) W2 Heating Y Cooling Y2 Cooling Aux Auxiliary heat O/B Changeover E Emergency heat L Heat pump reset Voltage (50/60Hz) 20-30 Vac 750 mV DC 20-30 Vac 20-30 Vac 20-30 Vac 20-30 Vac 20-30 Vac 20-30 Vac 20-30 Vac Running Current 0.02-1.0 A 100 mA DC 0.02-0.6 A 0.02-1.0 A 0.02-0.6 A 0.02-1.0 A 0.02-0.6 A 0.02-1.0 A 0.02-0.6 A
Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422
Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. U.S. Registered Trademark. US Patent No. 6595430, D509151 and other patents pending. 2007 Honeywell International Inc. 69-1896EF1 M.S. Rev. 02-07
http://yourhome.honeywell.com
Honeywell Limited-Honeywell Limite 35 Dynamic Drive Toronto, Ontario M1V 4Z9

Guide dinstallation

Thermostat programmable cran tactile
Ce guide a trait aux modles suivants
TH8320U : Pour installations comportant 3 circuits de chauffage/ 2 circuits de climatisation TH8321U : Pour installations comportant 3 circuits de chauffage/ 2 circuits de climatisation avec dshumidification (Il suffit de tirer le thermostat de la plaque murale et de le retourner pour voir la rfrence du modle)

Types dinstallations

Chauffage au gaz, au mazout ou lectrique avec climatisation Chaudires haut rendement air chaud, eau chaude, thermopompes, vapeur, calorifres Installation deux fils chauffage seulement, alimentation pour ouvrir

Operating Manual

VisionPRO TH8000 Series
Touchscreen Programmable Thermostat

69-1894EF-1

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) This thermostat contains a Lithium battery which may contain Perchlorate material. Perchlorate Materialspecial 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.
U.S. Registered Trademark. US Patent No. 6595430, D509151 and other patents pending. Copyright 2007 Honeywell International Inc. All rights reserved.

Table of contents

About your new thermostat
Thermostat features. 2 Programming at a glance.. 3 Quick reference to controls. 4 Quick reference to status display. 5 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

Programming & Operation
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 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 50F (10C).
Congratulations! Youve just purchased the worlds 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 1F 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 readeven in the dark. Select models display and control summer humidity. Select models accommodate optional outdoor or indoor remote sensors.
This thermostat is ready to About your new thermostat go!
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 youre 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).
Quick reference to controls
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)

FAN AUTO

OK TO PICK MULTIPLE DAYS

Inside

Set To

SYSTEM

Following Schedule

SCREEN

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 status display
Current inside temperature Current day of week

Temperature setting

Fan setting System setting Current time

Recovery

Program schedule on (does not display when off)
Adaptive Intelligent Recovery in effect (see page 15) Other display messages: Cool On: Cooling system is activated Heat On: Heating system is activated Aux Heat On: Auxiliary heating system is activated

Clock setting Inside

Press CLOCK

WED HOLD

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.

CANCEL

Adjust time, then press DONE
Note: To change the current week day display, see page 22.

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 youve 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).

Press FAN

Note: If a fan schedule is programmed, Auto will run the fan schedule.

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
Its 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

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).

LEAVE 8:00 am

RETURN 6:00 pm

SLEEP 10:00 pm

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.)

Heat (Mon-Fri)

Wake (6:00 am) Leave (8:00 am) Return (6:00 pm) Sleep (10:00 pm)

Cool (Mon-Fri)

Heat (Sat-Sun)

Cool (Sat-Sun)

[Or cancel period]
To adjust program schedules

AUTO Press SCHED

6:00 70
Following SCREEN MORE Schedule

Press EDIT

DONE EDIT

RETURN

Select day(s)

Set heat/cool levels

THU FRI SAT SUN

CANCEL PERIOD

1. Press SCHED, then EDIT. 2. Press day buttons (MON-SUN) to select day(s). 3. Press s or t to set Wake time for selected day(s). 4. Press s or t 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).
Note: You can press CANCEL PERIOD to eliminate any unwanted time period.

DONE WAKE

LEAVE RETURN SLEEP
Note: Press FAN to customize fan settings for any time period (see page 7).
Set time for program period to start 11
Program schedule override (temporary)

Adjust temperature

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 youve programmed for the current time period. To cancel the temporary setting at any time, press CANCEL (or SCHED). The program schedule will resume.

Heat On

Hold Temperature Until

MORE CANCEL

Press to set timer Press CANCEL (or SCHED) to resume program schedule
Program schedule override (permanent)
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.

Permanent Hold

Press CANCEL (or SCHED) to resume program schedule

Vacation hold

1.WED temperature Set
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.
2. Press to set time for Set To schedule to resume AUTO 3. Press HOLD twice
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.
Hold Temperature Until DAYS
4. Press to select number of days 14

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.

Screen lock

SCREEN LOCKED
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. To unlock the screen, press any unlocked key while SCREEN LOCKED 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

Screen cleaning

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 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.
Screen lock timer (30 seconds)

OK TO CLEAN SCREEN

Humidity level display (select About your new thermostat models)
Select models can display the current indoor humidity level.

SCHED HOLD

CLOCK SCREEN
(If an optional outdoor sensor is installed, the outdoor temperature is shown instead of the humidity level. Press MORE to display the humidity level.)

Humidity

Indoor humidity level
Dehumidification control (select models) About your new thermostat
Press MORE until humidity is displayed
Select models allow you to decrease summer humidity. The thermostat monitors humidity. When humidity increases, the thermostat runs the air conditioner longer to reduce humidity (up to 3F below your cooling temperature setting). Press MORE until the humidity screen is displayed, then press s or t to set the desired humidity level.
Press to set desired humidity

Humidity DEHUMIDIFIER

Press DONE to save and exit, or press CANCEL to exit without saving changes.

DONE CANCEL

Press to save & exit 19
Battery replacement About your new thermostat
Grasp thermostat and pull to remove fom wallplate
Batteries are optional (to provide backup power) if your thermostat was wired to run on AC power when installed. Install fresh batteries immediately when the LO BATT warning begins flashing. The warning flashes about 30 days before batteries are depleted. Even if the warning does not appear, you should replace batteries once a year, or before leaving home for more than a month.
Insert 3 fresh AAA alkaline batteries

Advanced functions About your new thermostat

1. Press SYSTEM.

Outside
2. Press and hold blank center key until the display changes.

AUTO Function

3. Change settings as required (see pages MORE 22-25).

Setting

Press s/t to select function
Press s/t to change setting
4. Press DONE to exit & save changes.
Year setting (first two digits)
Function 0120 Options: Press s/t to change the first two digits of the year: 20 = Year 20xx 21 = Year 21xx
Year setting (second two digits)
Function 0130 Options: Press s/t to change the last two digits of the year: 01 - 99 (i.e., 2001 - 2099)

Month setting

Function 0140 Options: Press s/t to change the current month: 01 - 12 (i.e., January - December)

Date setting

Function 0150 Options: Press s/t to change the current date: 01 - 31 22

Advanced functions

Program schedule on/off
Function 0160 Options: Press s/t to turn the program schedule on or off: 0 Program schedule is off. Thermostat is non-programmable. 4 Program schedule is on (7-day programmable).

Temperature format (F/C)

Function 0320 Options: Press s/t to set the temperature display format: 0 Fahrenheit 1 Celsius
Daylight savings time on/off
Function 0330 Options: The thermostat is pre-programmed to automatically adjust to daylight savings time. Press s/t to select an option: 0 Off: No adjustment for daylight savings time 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)
Furnace filter change reminder
Function 0500 Options: This feature displays an alert to remind you to change the furnace filter. Press s/t to set the desired reminder interval: 6 Off (no reminder to change furnace filter) Reminder after 10-day run time (about 1 month) Reminder after 30-day run time (about 3 months) Reminder after 60-day run time (about 6 months) Reminder after 90-day run time (about 9 months) Reminder after 120-day run time (about 1 year) Reminder after 365-day run time (about 3 years) Note: Press RESET to cancel the alert

Humidifier pad change reminder
Function 0510 Options: This feature displays an alert to remind you to change the humidifier pad. Press s/t to set the desired interval: 0 Off (no reminder to change humidifier pad) Note: Press RESET 1 Reminder after 3 months to cancel the alert 2 Reminder after 6 months 3 Reminder after 1 year

UV lamp change reminder

Function 0520 Options: This feature displays an alert to remind you to change the ultraviolet lamp. Press s/t to set the desired interval: Note: Press RESET 0 Off (no reminder to change UV lamp) to cancel the alert 1 Reminder after 1 year Press s/t to set the number of program periods: 2 Two program periods (Wake, Sleep) 4 Four program periods (Wake, Leave, Return, Sleep) Press s/t to set the clock display format: 12 12-hour clock (i.e., 3:30 pm) 24 24-hour clock (i.e., 15:30) Press s/t to choose a screen lock setting (see page 16): 0 Screen is unlocked (fully functional) 1 All functions locked except temperature controls and CANCEL key 2 Screen is fully locked 25

Program schedule periods

Function 0540 Options:

Clock format

Function 0640 Options:

Function 0670 Options:

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. If thermostat is battery powered, make sure fresh AAA alkaline batteries are correctly installed (see page 20).
No response to key presses (or temperature will not change)
Check to make sure the thermostat is not locked (see page 25). Make sure heating and cooling temperatures are set to acceptable ranges: Heat: 40 to 90F (4.5 to 32C) Cool: 50 to 99F (10 to 37C)

Backlight is dim

If thermostat is battery powered, make sure fresh AAA alkaline batteries are correctly installed (see page 20). If thermostat is AC powered, a dim display is normal. The backlight remains on at a low level, and brightens when a key is pressed.
Heating or cooling system does not respond Press SYSTEM to set system to Heat. Make sure the temperature is set higher than the Inside temperature. Press SYSTEM to set system to Cool. Make sure the temperature is set lower than the Inside temperature. Check circuit breaker and reset if necessary. Make sure power switch at heating & cooling system is on. Make sure furnace door is closed securely. If Wait is displayed, the compressor protection timer is on. Wait 5 minutes for the system to restart safely, without damaging the compressor (see page 15). This is normal operation. Auto indicates the thermostat is following the programmed fan setting. If Auto and On is shown, the fan is scheduled for On during this period (see page 7).

Display shows Fan Auto and On or Auto and Circ at the same time
Optional remote sensors (select models)
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. (The internal sensor in the thermostat is disabled.) If more than one indoor sensor is installed, the display shows an average of temperature readings from all sensors.

Inside temperature

Outside temperature

5-year limited warranty

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of five (5) years from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywells option). If the product is defective, (i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or (ii) call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you. This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer. Honeywells sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE FIVE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limite, 35 Dynamic Drive, Toronto, Ontario M1V4Z9.