Operating Manual

FocusPRO TH6000 Series

Programmable Thermostat

69-1921ES

Quick Reference Card

Grasp and pull to see basic operating instructions at a glance.

Battery Holder

Press down and pull to remove batteries. Batteries should be replaced once a year (see page 17).
This manual covers the following models:
TH6110D: For 1 Heat/1 Cool systems TH6220D: For up to 2 Heat/2 Cool systems TH6320U: For up to 3 Heat/2 Cool systems (Remove battery holder 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
Read and save these instructions.
U.S. Registered Trademark. Patents pending. Copyright 2006 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 display.. 5

Appendices

Battery replacement.. 17 In case of difficulty.. 18 Customer assistance.. 20 Accessories/replacement parts.20 5-year limited warranty.. 21
Programming & Operation
Set time and day.. 6. Select fan setting (auto/on). 7 Select system setting (heat/cool). 8 Using program schedules. 9 Program schedule overrides.. 12 Auto-changeover (heat/cool). 14. Compressor protection.. 15. Adaptive Intelligent Recovery. 16.
This thermostat is ready to go!
Your new thermostat is pre-programmed 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 on the purchase of your new Honeywell thermostat. It has been designed to give you many years of reliable service and easy-to-use, push-button climate control.

Features

Separately programmable weekday/weekend schedules. One-touch temp control overrides program schedule at any time. EnergyStar compliant to greatly reduce your heating/cooling expenses.
Large, clear, backlit display is easy to read even in the dark. Displays both room temperature and temperature setting. Removable battery holder for fast, easy replacement. Built-in compressor protection.
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 time and day (required for proper operation).See page 6 2. Select fan setting (Auto/On): Preset to Auto..To change, see page 7. 3. Select system setting (Heat/Cool): Preset to Heat.To change, 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)...To change, see pages 9-11
ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time, and manually adjust the temperature (see pages 12-13).

Quick reference to controls
Digital display (see page 5). Battery holder (see page 17).
Temperature Buttons Press to adjust temperature settings (see page 11-13).
Function Buttons Press to select the function displayed just above each button. (Functions change depending on the task.)
Hold Button Press to override programmed temperature control (see page 13).
Quick reference to display screen
Current inside temperature In Recovery (see page 16) Current program period Wake/Leave/Return/Sleep (see pages 9-11)

Inside

Low battery warning (see page 17)

Replace Battery

In Recovery
Current time/day (see page 6) Temperature setting (see pages 11-13) Auxiliary heat (Only for heat pumps with auxiliary heat) System status Heat On/Cool On (If flashing, see page 15) System setting Heat/Cool/Auto/Off/Em Heat (see page 8) Fan setting Auto/On (see page 7)

Wed Fan Auto

Set Clock/Day/Schedule (see pages 6 & 11)

Set Clock/Day/ Schedule

Auxiliary Heat On System Heat

Heat Setting

Function buttons Press the button beneath each function to view or change settings (functions change depending on the task)

Set the time and day

Press SET CLOCK/DAY/SCHEDULE, then adjust time
Set Clock/Day/ Schedule Fan Auto

PM System Heat

1. Press the SET CLOCK/DAY/SCHEDULE button, then press s or t to set the clock time. 2. Press the SET DAY button, then press s or t to select the day of the week. 3. Press DONE to save & exit.
Note: If the SET CLOCK/DAY/SCHEDULE option is not displayed, press DONE or RUN SCHEDULE.
Press SET DAY, then select current day
Wed Done Set Day Set Schedule
Note: If the display flashes Set Clock, the thermostat will follow your settings for the weekday Wake time period until you reset the time and day.

Select the fan setting

Set Clock/Day/ Schedule Fan Auto System Heat

Press the FAN button to select Auto or On. In Auto mode (the most commonly used setting), the fan runs only when the heating or cooling system is on. If set to On, the fan runs continuously. Use this setting for improved air circulation, or for more efficient air cleaning.

System On Heat

Select the system setting
Press the SYSTEM button to select: Heat: Thermostat controls only the heating system. Cool: Thermostat controls only the cooling system.

Fan Auto

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.
Note: The Auto and Em Heat system settings may not appear, depending on how your thermostat was installed.
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
Set Clock/Day/ Schedule Fan Auto System Cool
1. Press SET CLOCK/DAY/SCHEDULE, then SET SCHEDULE. 2. Press s or t to set your weekday Wake time (MonFri), then press NEXT.
Done Set Day Set Schedule
3. Press s or t to set the temperature for this time period, then press NEXT. 4. Set time and temperature for the next time period (Leave). Repeat steps 2 and 3 for each weekday time period. 5. Press NEXT to set weekend time periods (SatSun), then press DONE to save & exit.
Note: Make sure the thermostat is set to the system you want to program (Heat or Cool). Note: You can press CANCEL PERIOD to eliminate unwanted time periods (except Wake). 11

Set Schedule

Leave Mon Tue Wed Thu Fri Done

CancelPeriod Next

Program schedule override (temporary)
Press to temporarily adjust temperature.

Run Schedule

Temporary

System Heat

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 next programmed time period begins (see page 10). For example, if you want to turn up the heat early in the morning, it will automatically be lowered later, when you leave for the day. To cancel the temporary setting at any time, press RUN SCHEDULE.
Press to cancel temporary setting and resume program schedule. Note: Make sure the thermostat is set to the system you want to control (heat, cool or auto). 12
Program schedule override (permanent)
Press to permanently adjust temperature.

Heat Hold Setting

Press HOLD to permanently adjust the temperature. This will override the temperature settings for all time periods. The Hold feature turns off the program schedule and allows you to adjust the thermostat manually, as needed. Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press RUN SCHEDULE to cancel Hold and resume the programmed schedule.
Press to cancel Hold setting and resume program schedule. Note: Make sure the thermostat is set to the system you want to control (heat, cool or auto). 13
Auto changeover (heat/cool)
Set Clock/Day/ Schedule Fan Auto System Auto
Auto Changeover is a feature used in climates where both air conditioning and heating are used on the same day. When the system is set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 3 degrees apart. The thermostat will automatically adjust settings to maintain this 3-degree separation (called deadband). The 3-degree separation between heating and cooling set temperatures is fixed, and cannot be changed.
Press until screen displays Auto
Note: The Auto system setting may not appear, depending on how your thermostat was installed.
Built-in compressor protection

Cool Setting

This feature helps prevent damage to the compressor in your air conditioning or heat pump system. Damage can occur if the compressor is restarted too soon after shutdown. This feature forces the compressor to wait for a few minutes before restarting. During the wait time, the display will flash the message Cool On (or Heat On if you have a heat pump). When the safe wait time has elapsed, the message stops flashing and the compressor turns on.

Cool On System Cool

Message flashes until safe restart time has elapsed
Adaptive Intelligent Recovery (AIR)
Adaptive Intelligent Recovery eliminates guesswork when setting your schedule. It allows the thermostat to learn how long your furnace and air conditioner take to reach the temperature you want. Just set your program schedule to the time you want the house to reach your desired temperature. The thermostat then turns on the heating or cooling at just the right time to reach your scheduled temperature at your scheduled time. 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.

Note: When Adaptive Intelligent Recovery is in effect, the thermostat will display In Recovery.

Battery replacement

Press and pull to remove
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 REPLACE BATTERY warning begins flashing. The warning flashes about two months before the 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. If batteries are inserted within two minutes, the time and day will not have to be reset. All other settings are permanently stored in memory, and do not require battery power.
Insert fresh AA alkaline batteries, then reinstall battery holder.

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 AA alkaline batteries are correctly installed (see page 17).
Temperature settings do not change
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).
To restore Follow these steps to restore Energy Star default settings (see page 10): Energy Star 1. Press SET CLOCK/DAY/SCHEDULE. default settings 2. Press SET SCHEDULE. 3. Press DONE and NEXT at the same time for 4 seconds.
Heating or cooling system does not respond Press SYSTEM button to set system to Heat. Make sure the temperature is set higher than the Inside temperature. Press SYSTEM button 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. Wait 5 minutes for the system to respond. Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor (see page 15).
Cool On or Heat On is flashing

Customer assistance

For assistance with this product, please visit http://yourhome.honeywell.com. Or call Honeywell Customer Care toll-free at 1-800-468-1502.

Model number

xxxxxxx

Date code

To save time, please remove the battery holder and note your model number and date code before calling.

Accessories/replacement parts
To order, please call Honeywell Customer Care toll-free at 1-800-468-1502. Battery holder. Part No. 50007072-001 Cover plate assembly*. Part No. 50002883-001
*Use to cover marks left by old thermostats. 20

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, Scarborough, Ontario M1V4Z9.
Automation and Control Systems

Installation Guide

FocusPRO TH6000 Series

Programmable Thermostat

This manual covers the following models
TH6110D: For 1 Heat/1 Cool systems TH6220D: For up to 2 Heat/2 Cool systems TH6320U: For up to 3 Heat/2 Cool systems (Remove battery holder to find model number)

System Types

Gas, oil, or electric heat with air conditioning Warm air, hot water, highefficiency furnaces, heat pumps, steam, gravity
Heat only two-wire systems, three-wire zone valves (Series 20), and normally open zone valves Heat only with fan Cool only 750 mV heating systems
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.

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. Patents pending. Copyright 2006 Honeywell International Inc. All rights reserved.

69-1920ES

Wallplate installation
1. Separate wallplate from thermostat. 2. Mount wallplate as shown below.
Remove battery holder. Pull here to remove wallplate from new thermostat. It's easier to grasp the wallplate and remove it after completely removing the battery holder. Insert reference card after wallplate is mounted (see instructions, below).
Drill 3/16" holes for drywall. Drill 7/32" holes for plaster.

Wire hole

Mounting screws

Wall anchors

Wallplate
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.
FocusPRO TH6110 / TH6220 / TH6320

Power options

Keep wires in this shaded area Remove factoryinstalled jumper only for twotransformer systems.
Insert batteries for primary or backup power. Connect C for primary AC power (optional if batteries are installed).

Wiring

Terminal designations
Shaded areas below apply only to TH6320U/TH6220D or as otherwise noted. Conventional Terminals:
Rc R W Y Y2 G C 24VAC power from cooling transformer 24VAC power from heating transformer Heat relay (stage 1) Compressor contactor (stage 1) Compressor contactor (stage 2) Fan relay 24VAC common. For 2 transformer systems, use common wire from cooling transformer. G E L C

Heat Pump Terminals:

Rc R 24VAC power from cooling transformer 24VAC power from heating transformer Compressor contactor (stage 1) Compressor contactor (stage 2) TH6320U only Fan relay Emergency heat relay* Sends output when set to Em. Heat 24VAC common
O/B Changeover valve Y Y2

W2 Heat relay (stage 2)

Aux Auxiliary heat relay*
TH6110D TH6110D G W C Y R Rc TH6220D

G W C Y R Rc

TH6110D

TH6110D C Y R Rc

G C Y R Rc

TH6220D

L E Aux G
Y2 W2 G W CTH6220D Y R Rc
CTH6220D Y R Rc L E Aux G CTH6320U Y R Rc L Y2 Aux G E C Y R Rc C Y R Rc

TH6320U

Y2 W2 G W C TH6320U Y R Rc L Y2 Aux G E
Y2 W2 G W CTH6320U Y R Rc

Y2 W2 G W C Y R Rc

*Aux and E terminals combined on TH6320U only.
Wiring guide conventional systems
Shaded areas below apply only to TH6320U/TH6220D or as otherwise noted. 1H/1C System
(1 transformer) G Rc Power [1] R [R+Rc joined by jumper] Y Compressor contactor C 24VAC common [3] W Heat relay G G Fan relay

W C Y R Rc

Heat-only System with GFanC GY WR C W Rc

Rc R C W W W G G

W C Y R Rc W C Y R Rc
Power [1] [R+Rc joined by jumper] 24VAC common [3] CG R C Y R Rc Rc G Heat relay G C Y R Rc Fan relay R Rc G W C

C Y R Rc W C R Rc

Heat-only System

Rc R C W

Y2 W2 System Cool-only GY WR CRcY W C
Y2 W2 G W C Y R Rc C Y R Rc W C R Rc

G W C Y R Rc W C R Rc

Power [1] [R+Rc joined by jumper] 24VAC common [3] Heat relay G
C Y R Rc W C R Rc W C Y R Rc W C Y R Rc
W C G WR C [1] Rc G Rc W CPowerRc R Rc G G Y R G C Y R Rc R [R+Rc joined by jumper] Y Y2 W2 Compressor Rc contactor Y2 W2 G Rc C GY WR C Y R C W C24VACRcY R Rc [3] W2 G common Y2 GY R C W C R Rc G G Y2 W2 Fan relay R Rc G W C G W C Y G System 2H/2C W C Y R Rc
W C Y R Rc W C Y R Rc C Y R Rc

G W C Y R Rc R Rc R Rc

(Series 20) [5] W C Y G Rc [R+Rc joined by jumper] W C Y R Series 20 valve terminal R [1] Y Series 20 valve terminal W C Y C 24VAC common [3] G W C Y W C W Series 20 valve terminal B

R Rc R Rc R Rc

G W C Y R Rc C Y R Rc C Y R Rc
(normally open zone valve) [5] W Rc [R+Rc joined by jumper] R Power [1] Y Normally open zone valveW G C 24VAC common [3]
Y2 W2 G W C Y C Y2 W2 G Y W [6] (1 transformer)R CRcY R Rc Y2 W2 G W C Y W C Y R Rc G W C GY2 C GY WR C Rc WW2 PowerRcY R Rc [1] R [R+Rc joined by jumper] YGY2 W2 Compressor Rc W C G Y WR CRcY R contactor (stage 1) Y C Y R common C Y2 W2 24VACRcY R Rc [3]Y2 W2 G W C Y W C G WR CRcY R Rc G C G C W Heat relay (stage 1) G Fan relay W2 W CHeat relay (stage 2) G Y R Rc Y2 C G W C Y R Y2 W2 G W C Y Rc W Y2 W2 GY WR C Y R Rc Y2 W2 Compressor Rc contactor (stage 2)

R Rc R Rc

2H/2C System

C Y R Rc C Y R Rc

1H/1C System
G W C Y R (2 transformers) Rc Power (cooling transformer) [1, 2] R Power (heating transformer) [1, 2] Y Compressor contactor C 24VAC common [3, 4] W Heat relay G Fan relay
(2 transformers) CRcY R Rc [6] Y2 W2 G W C Y R C Y2 W2 GY WR Rc Power (cooling transformer) [1, 2] R Power (heating transformer) [1, 2] Y Compressor contactor (stage 1) G W C Y R Rc C 24VAC common [3, 4] W Heat relay (stage 1) G Fan relay W2 Heat relay (stage 2) Y2 Compressor contactor (stage 2) See [notes] below
Wire specifications: Use 18- to 22-gauge thermostat wire. Shielded cable is not required. [1] Power supply. Provide disconnect means and overload protection as required. [2] Remove jumper for 2-transformer systems. [3] Optional 24VAC common connection. [4] Common connection must come from cooling transformer. [5] In Installer Setup, set system type to Heat Only. [6] In Installer Setup, set system type to 2Heat/ 2Cool Conventional.

[7] In Installer Setup, set changeover valve to O or B. [8] In Installer Setup, set system type to 2Heat/ 1Cool Heat Pump. [9] In Installer Setup, set system type to 2Heat/ 2Cool Heat Pump. [10] In Installer Setup, set system type to 3Heat/ 2Cool Heat Pump. [11] L terminal sends a continuous output when thermostat is set to Em. Heat. Connect to Honeywell zoning panels to switch the panel to Emergency Heat. [12] Install field jumper between Aux and E if there is no emergency heat relay.

C Y R Rc

Wiring guide heat pump systems
L Shaded areas below apply only to TH6320U/TH6220D or as otherwise noted.Aux G E
C Y R Rc C Y R Rc C Y R Rc

1H/1C Heat Pump System

Rc R Y C O/B G

2H/2C Heat Pump System

G L Y2 G
Power [1] [R+Rc joined by jumper] Compressor contactor L E Aux G 24VAC common [3] Changeover valve [7] G Fan relay

L Aux G E

2H/1C Heat Pump System
(TH6220D only) [8] L Y2 G C Y R Rc Rc Power [1] R [R+Rc joined by jumper] L Aux C Y R Rc Y Compressor contactor G E C Y R Rc C 24VAC common L Y2 Aux G [3] E O/B Changeover valve [7] G C Y R Rc G Fan relay L Y2 G C Y R Rc Aux Auxiliary heat relay [12] E Emergency heat relay [12] L Aux G C Y R Rc L Sends output whenEset to Em. Heat [11]
(TH6320U only) [9] Rc Power [1] L E Aux G C Y R Rc R [R+Rc joined by jumper] L Y2 Aux G C Y Y Compressor contactor (stage 1) R Rc E C 24 VAC common [3] L C Y R Rc O/B Changeover valve [7]Aux G E G Fan relay Y2 Compressor contactor (stage 2) L Sends output whenY2 to Em.CHeat [11] L set G Y R Rc

3H/2C Heat Pump System

L Y2 Aux G E
L Aux G C Y R Rc (TH6320U only) [8] E Rc Power [1] R [R+Rc joined by jumper] Y Compressor contactor G L Y2 C Y R Rc C 24VAC common [3] O/B Changeover valve [7] G Fan relay L Y2 Aux G C Y R Rc E Aux/E Auxiliary/Emergency heat relay L Sends output when set to Em. Heat [11]
(TH6320U only) [10] E Rc Power [1] R [R+Rc joined by jumper] Y Compressor contactor (stage 1) C 24VAC common [3] O/B Changeover valve [7] G Fan relay Aux/E Auxiliary/Emergency heat relay Y2 Compressor contactor (stage 2) L Sends output when set to Em. Heat [11]

L Y2 Aux G

See [notes] on page 4.

Thermostat mounting

Align the 4 tabs on the wallplate with slots on the back of the thermostat, then push gently until the thermostat snaps in place.
Push excess wire back into the wall opening. Plug wall opening with non-flammable insulation.

Installer setup

Follow the procedure below to configure the thermostat to match the installed heating/cooling system, and customize feature operation as desired.

Function number Setting

Done Next
To begin, press and hold the s and FAN buttons until the display changes.

Press s or t to change settings. Press NEXT to advance to the next function. Press DONE to exit and save settings.

Setup function

1 System type
Settings & options (factory default in bold)
heat/1 cool conventional 1 heat/1 cool heat pump (no aux. heat) Heat only 2-wire systems, 3-wire zone valves (Series 20), and normally open zone valves Heat only with fan Cool only 2 heat/1 cool heat pump (with aux. heat) 2 heat/2 cool conventional 2 heat/1 cool conventional 1 heat/2 cool conventional 2 heat/2 cool heat pump (no aux. heat) - TH6320U only 3 heat/2 cool heat pump (with aux. heat) - TH6320U only Changeover valve (O/B terminal energized in cooling) Changeover valve (O/B terminal energized in heating) Gas or oil furnace equipment controls fan in heating Electric furnace thermostat controls fan in heating For gas or oil furnaces of less than 90% efficiency For steam or gravity systems For hot water systems & furnaces of over 90% efficiency For electric furnaces For gas or oil furnaces of less than 90% efficiency For steam or gravity systems For hot water systems & furnaces of over 90% efficiency For electric furnaces For gas or oil furnaces of less than 90% efficiency For steam or gravity systems For hot water systems & furnaces of over 90% efficiency For electric furnaces For electric emergency heat For steam or gravity systems For hot water systems & furnaces of over 90% efficiency For gas or oil furnaces of less than 90% efficiency
Shaded areas below apply only to TH6320U/TH6220D or as otherwise noted.
2 Changeover valve (O/B terminal) 3 Fan control (heating)
5 Stage 1 heat cycle 5 rate (CPH: cycles/hour)* Stage 2 heat cycle rate/Auxiliary heat cycle rate (CPH)* 7 Auxiliary heat cycle rate (CPH)* Only TH6320U for 3H/2C Heat Pumps 3 9
8 Emergency heat cycle 9 rate (CPH)* 5
*[Other cycle rate options: 2, 4, 6, 7, 8, 10, 11 or 12 CPH]

Continued on next page

9 Stage 1 compressor cycle rate (CPH) 10 Stage 2 compressor cycle rate (CPH) 12 Manual/Auto changeover 13 Adaptive Intelligent Recovery 14 Temperature display 15 Compressor protection 16 Schedule format 27 Heat temperature range stops 28 Cool temperature range stops
Recommended for most compressors [Other cycle rate options: 1, 2, 4, 5 or 6 CPH] Recommended for most compressors [Other cycle rate options: 1, 2, 4, 5 or 6 CPH] Manual changeover (Heat/Cool/Off) Auto changeover (Heat/Cool/Auto/Off) **See page 8 Auto changeover only (Auto) **See page 8 On**See page 8 Off Fahrenheit Celsius Five-minute compressor off time **See page 8 [Other options: 0, 1, 2, 3 or 4-minute off time] 5/2 (programmable weekdays and weekends) 5/1/1 (weekdays, Saturday & Sunday programmable)
90 Max. heat temperature setting is 90 F (32 C) [Other options: 40 F to 89 F (4.5 C to 31.5 C)] 50 Min. cool temperature setting is 50 F (10 C) [Other options: 51 C)] F to 99 F (10.5 C to 37

Installer system test

Test number System status
To begin, press and hold the s and t buttons until the display changes.
Press s / t to turn system on/off. Press NEXT to advance to next test. Press DONE to terminate system test.

System test

10 Heating system

System status

Heat and fan turn off. Stage 1 heat turns on. Fan turns on if Setup Function 1 is set to 1, 5, 9 or 10 OR Setup Function 3 is set to 1 **See page 6 Stage 2 heat turns on Stage 3 heat turns on - TH6320U only Heat and fan turn off Heat and fan turn on Stage 2 heat turns on (auxiliary heat) - TH6220D only Compressor and fan turn off Compressor and fan turn on Stage 2 compressor turns on Fan turns off Fan turns on
20 Emergency heating system 30 Cooling system

40 Fan system

CAUTION: Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.

Special functions

Auto Changeover (Setup Function 12): When set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. The thermostat will automatically adjust heat and cool settings to maintain a 3-degree separation (fixed). Note: If you select Auto Changeover Only, the System Setting on the thermostat will stay locked in the Auto position, preventing the user from changing it to Em Heat, Heat, Cool or Off. Adaptive Intelligent Recovery (Setup Function 13): 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. Compressor Protection (Setup Function 15): Forces the compressor to wait a few minutes before restarting, to prevent damage. During the wait time, the message Cool On or Heat On (heat pumps only) will flash on the display.
Accessories & replacement parts
Please contact your distributor to order replacement parts.
Battery holder. Part Number 50007072-001 Cover plate assembly*. Part Number 50002883-pack of medium cover plates*. Part Number 50007298-001
*Use to cover marks left by old thermostats.

Specifications

Temperature Ranges Heat: 40 to 90F (4.5 to 32C) Cool: 50 to 99F (10 to 37C) Operating Ambient Temperature 32 to 120F (0 to 48.9C) Shipping Temperature -20 to 120F (-28.9 to 48.9C) Operating Relative Humidity 5% to 90% (non-condensing) Physical Dimensions 3-9/16" H x 5-13/16" W x 1-1/2" D 91 mm H x 147 mm W x 38 mm D Electrical Ratings Terminal W Heating (Powerpile) W2 (Aux) Heating Y Cooling Y2 Cooling G Fan O/B Changeover E Emergency heat L Output 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 0.02-0.5 A 0.02-1.0 A 0.02-1.0 A 0.02-0.5 A 0.02-0.5 A 0.02-1.0 A 0.02-0.5 A