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PRODUCT DATA

68-0280-01

® U.S. Registered Trademark
© 2011 Honeywell International Inc.
 All Rights Reserved 

VisionPRO™ 8000 Touchscreen

Programmable Thermostat

APPLICATION

The VisionPRO 8000 Touchscreen Programmable Thermostat 

is an effortless, 7-Day programmable thermostat that provides 

universal system compatibility, precise comfort control and is 

easy-to-program.

The TH8110 Thermostats provide temperature control for gas, 

oil, electric and heat pumps for 1 heat, 1 cool systems. 

The TH8320 Thermostats provide temperature control for gas, 

oil, electric and heat pumps for up to 3 heat, 2 cool systems 

including dual fuel operation.

The TH8321 Thermostats provide temperature control for gas, 

oil, electric and heat pumps for up to 3 heat, 2 cool systems 

including dual fuel operation plus dehumidification control.

FEATURES

• Large, clear display with backlight shows the current 

and set temperature and time—even in the dark.

• Menu-driven programming make setup effortless.
• Beautiful ergonomic design is smart and sophisticated 

to match your customers’ lifestyle.

• Touchscreen interaction
• Real-time clock keeps time during power failures and 

automatically updates to daylight savings.

• "Saving Changes" notification lets you know when the 

schedule changes have been saved.

• Change/check reminders let you know when to service 

or replace filters or batteries.

• Various Hold options allow you to override the 

program schedule, as desired.

• Speedy same-schedule programming—no need to 

copy multiple days.

• Armchair programming allows you to remove the 

thermostat from the wall for programming.

• Programmable fan offers increased air quality when 

combined with a Honeywell whole-house air cleaner.

Contents

Application/Features..........................................................1

Specifications/Ordering Information ..................................2

Installation .........................................................................4

Wiring ................................................................................5

Power the Thermostat .......................................................11

Installer Setup ...................................................................15

Installer System Test .........................................................20

Operation...........................................................................21

Programming.....................................................................23

Troubleshooting.................................................................38

Summary of Contents for 8320

Page 1: ...th backlight shows the current and set temperature and time even in the dark Menu driven programming make setup effortless Beautiful ergonomic design is smart and sophisticated to match your customers lifestyle Touchscreen interaction Real time clock keeps time during power failures and automatically updates to daylight savings Saving Changes notification lets you know when the schedule changes ha...

Page 2: ...rmostats Premier White color C7189U Wall Mount Remote Indoor Sensor Premier White color Clock Accuracy 1 minute per month Batteries Three replaceable AAA alkaline batteries Power thermostats when 24 Vac common is not used Non replaceable lithium battery with ten year life under normal use to hold calendar and time settings Alkaline batteries keep calen dar and time after lithium battery is no long...

Page 3: ... x 4 in junction box C7089U Outdoor Sensor Mounts outside of living space with mounting clip and screws provided C7189U Remote Indoor Sensor Mounts directly on the wall using mounting screws and anchors provided Fits a vertical 2 x 4 in junction box Cover Plate 32003796 001 Cover Plate is used to cover marks left on the wall by the old thermostat Dimensions TH8000 Touchscreen Thermostat see Fig 1 ...

Page 4: ...ostat where it can be affected by Drafts or dead spots behind doors and in corners Hot or cold air from ducts Radiant heat from sun or appliances Concealed pipes and chimneys Unheated uncooled areas such as an outside wall behind the thermostat Installing Wallplate CAUTION Electrical Hazard Can cause electrical shock or equipment damage Disconnect power before wiring The thermostat can be mounted ...

Page 5: ...s from affecting the thermostat 6 See Fig 9 through 21 for typical wiring hookups Fig 7 Selecting terminal identifications for system type Fig 8 Inserting wires in terminal block IMPORTANT Use 18 gauge thermostat wire WALL MOUNTING HOLES M19916 MOUNTING SCREWS 2 WALL ANCHORS 2 WIRES THROUGH WALL AND WIRE SLOT CONVENTIONAL SCREW TERMINALS HEAT PUMP M19951 Y2 L E AUX S1 S2 Y2 W2 S1 S2 RC R O B Y G C...

Page 6: ...ee Note 1 Power for heating connect to secondary side of heating system transformer C see Note 2 Common wire from secondary side of cooling system transformer W Heat relay Y Compressor contactor G Fan relay Y2 Second stage cooling W2 Second stage heat relay O B see Note 3 Changeover valve for heat pump systems AUX Auxiliary heat relay for heat pump systems E Emergency heat relay for heat pump syst...

Page 7: ...ED FACTORY INSTALLED JUMPER OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR AVAILABLE ON SELECT MODELS WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE 1 1 3 2 3 OPTIONAL 24 VAC COMMON CONNECTION Y2 RC S1 R S2 W W2 Y G C 2 CONVENTIONAL M19899 OUTDOOR INDOOR TEMPERATURE SENSOR POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED FACTORY INSTALLED JUMPER OPTIONAL OUTDOOR OR I...

Page 8: ...2 W W2 Y G C 2 CONVENTIONAL COMPRESSOR CONTACTOR M22438B HEAT RELAY 2 COOL RELAY 2 OUTDOOR INDOOR TEMPERATURE SENSOR FAN RELAY R C POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED FACTORY INSTALLED JUMPER OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR AVAILABLE ON SELECT MODELS WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE 1 1 3 2 3 OPTIONAL 24 VAC COMMON CONNECTION...

Page 9: ... REMOTE SENSOR AVAILABLE ON SELECT MODELS WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE OUTDOOR INDOOR TEMPERATURE SENSOR RC R Y G C Y2 L E SI HEAT PUMP COMPRESSOR 1 COMPRESSOR 2 M19904 CHANGEOVER VALVE FAN RELAY R C 1 1 2 2 3 4 5 5 4 4 3 3 OPTIONAL 24 VAC COMMON CONNECTION POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED FACTORY INSTALLED JUMPER MUST CONNECT ...

Page 10: ...ENT MONITOR CAN ALSO BE USED AS A 24 VAC OUTPUT SEE HEAT PUMP LED SECTION FOR MORE INFORMATION O B TERMINAL SET TO CONTROL AS EITHER O OR B IN THE INSTALLER SETUP EMERGENCY HEAT RELAY 3 OUTDOOR INDOOR TEMPERATURE SENSOR R Y G C Y2 L E SI HEAT PUMP COMPRESSOR 2 COMPRESSOR 1 M19906 CHANGEOVER VALVE FAN RELAY HEAT 2 RELAY AUXILIARY HEAT R C 1 1 2 2 3 4 5 6 6 6 3 5 5 OPTIONAL 24 VAC COMMON CONNECTION ...

Page 11: ...ostat wallplate Remove the metal jumper wire between Rc and R Installing Batteries 1 Install three AAA alkaline batteries on the back of the thermostat as marked on the thermostat See Fig 22 Fig 22 Installing batteries 2 Locate and remove the tab labeled Remove in the lower left corner on the thermostat back See Fig 23 Fig 23 Remove tab labeled Remove on thermostat back Mount Thermostat to Wallpla...

Page 12: ...ratic temperature readings from a sensor can occur as a result of any of the wiring practices described below Avoid these practices to assure correct operation Use shielded cable to reduce interference if rerouting sensor wiring is not possible Be sure wires have a cable separate from the thermostat cable Do not route temperature sensor wiring with building power wiring next to control contactors ...

Page 13: ...9 Indoor Sensor CAUTION Electrical Interference Noise Hazard Can cause erratic system operation Keep wiring at least one foot away from large inductive loads such as motors line starters lighting ballasts and large power distribution panels IMPORTANT Erratic temperature readings from a sensor can occur as a result of any of the wiring practices described below Avoid these practices to assure corre...

Page 14: ...arrow keys to set the current time 4 Press the Done Key 2 C7189 RC R Y2 M19972 R C POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED IF MORE THAN ONE C7189 REMOTE SENSOR IS REQUIRED REFER TO FIGURE 3 WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE 1 1 3 2 3 M19973 SENSORS MUST BE ARRANGED IN THIS CONFIGURATION TO OPERATE CORRECTLY WIRES MUST HAVE A CABLE SEPARATE...

Page 15: ... below to review how the thermostat keys are used during Installer Setup See Tables 3 5 for the Installer Setup Numbers and Settings 5 Press the Done key to exit the Installer Setup screen SCHED HOLD CLOCK SCREE FAN ON AUTO A M THU SYSTEM EM HEAT OFF COOL Following Schedule Inside Set To M22426A DONE CANCEL MON TUE WED THU FRI SAT A AT SUN PM SYSTEM EM HEAT OFF COOL Following Schedule Inside Set T...

Page 16: ...ory setting 1 changeover valve O B terminal is energized in heating Only shown if heat pump system is chosen 0200 Backup Heat Source Auxiliary Heat 0 heat pump backup heat source is electric factory setting 1 heat pump backup heat source is fossil fuel Only shown if 2 heat 1 cool or 3 heat 2 cool heat pump is chosen 0210 External Fuel Fossil Fuel Kit 0 no external fossil fuel kit is controlling he...

Page 17: ...geover factory setting 1 auto changeover 0310 Deadband Heating and cooling setpoints can be set no closer than chosen value 2 2 F 1 5 C 3 3 F 2 C 4 4 F 2 5 C 5 5 F 3 C 6 6 F 3 5 C 7 7 F 4 C 8 8 F 4 5 C 9 9 F 5 C Shown only if automatic changeover is selected 0320 Temperature Indication Scale 0 fahrenheit temperature display factory setting 1 celsius temperature display 0330 Daylight Savings 1 dayl...

Page 18: ... replacement reminder off 1 90calendardays 2 180 calendardays 3 365 calendar days 0520 UV Lamp Replacement Reminder 0 UV lamp replacement reminder off 1 365 calendar days 0530 Adaptive Intelligent Recovery 1 Adaptive Intelligent Recovery control is activated system starts early so setpoint is reached by start of program period 0 Conventional Recovery system starts recovery at programmed time 0540 ...

Page 19: ...re undershoot 2 Standard temperature control in heating factory setting 3 more aggressive temperature control could cause temperature overshoot Applies to recovery ramp and use of auxiliary heat during recovery Choose 1 if getting temperature overshoot Choose 3 if getting temperature undershoot 0690 Temperature Control in Cool 1 less aggressive temperature control could cause temperature undershoo...

Page 20: ... the Installer System Test to test the heating cooling fan and emergency heat The setting you choose for System Type Installer Setup Number 0170 may prevent some System Test Numbers from appearing DONE M22428 SYSTEM TEST NUMBER SYSTEM STATUS NUMBER DONE KEY EXITS INSTALLER SYSTEM TEST UP ARROW KEY ADVANCES TO NEXT SYSTEM TEST NUMBER UP ARROW TURNS THE SYSTEM ON DOWN ARROW TURNS THE SYSTEM OFF Tabl...

Page 21: ...t central air cleaning when you do not want the fan running continuously User Setup Follow these steps to enter the User Setup 1 Press and release the System key SCHED HOLD CLOCK SCREEN MORE TUE AM FAN AUTO SYSTEM HEAT Following Schedule Inside Set To M22444 FAN SELECTS ON AUTO CIRC SYSTEM SELECTS EM HEAT HEAT OFF COOL UP ARROW RAISES TEMPERATURE SETTING U n DOWN ARROW LOWERS TEMPERATURE SETTING S...

Page 22: ...etup Settings User Setup Number User Setup Name Settings 0120 Date first two digits of year Select first two digits of current calendar year 20 for year 2005 etc 0130 Date last two digits of year Select last two digits of current calendar year 05 for year 2005 etc 0140 Date month Select number of current calendar month 1 12 0150 Date day Select number of current calendar date 1 31 0160 Schedule op...

Page 23: ...about six months 4 90 fan run time days about nine months 5 120 fan run time days about one year 6 365 fan run time days about three years 0510 Humidifier pad reminder 0 off 1 3 months 2 6 months 3 12 months 0520 UV lamp reminder 0 off factory setting 1 1 year 0540 Number of schedule periods available 2 two Wake and Sleep 4 four Wake Leave Return Sleep factory setting 0640 Clock format 12 12 hour ...

Page 24: ...ut saving changes press Cancel key any time Cancel a Schedule Period 1 Press Sched key 2 Press Edit key 3 Select the Day s of the week desired 4 Press schedule period you want to cancel Wake Leave Return or Sleep Once selected the period flashes 5 Press Cancel Period key 6 The time temperature s and fan setting disappear The bar above the selected period is removed indicating the scheduled period ...

Page 25: ...n is set to Auto only Auto is shown in the Fan area However if during the Wake period fan is scheduled to On both Auto and On are shown Auto indicates fan is running its schedule On indicates Fan schedule is set to On DONE WAKE LEAVE RETURN SLEEP CANCEL MON TUE WED THU FRI SAT SUN FAN HEAT COOL OK TO PICK MULTIPLE DAYS M19957 SCHED SCHED HOLD HOLD CLOCK SCREEN DONE WAKE LEAVE RETURN SLEEP CANCEL M...

Page 26: ...ature override options Hold Temperature Until Permanent Hold and Vacation Hold HOLD TEMPERATURE UNTIL TEMPORARY HOLD Holds temperature temporarily until the next scheduled period time or until the time the user sets 1 Press Up or Down arrow next to the temperature you want to adjust Hold Temperature Until time appears on the screen The Hold Temperature Until time defaults to the start time of the ...

Page 27: ...mostat to override the schedule NOTE Days Up and Down arrows appear for approximately seven seconds Pressing just below Hold Temper ature Until on the screen allows the Days Up and Down arrows to reappear 4 To cancel the Vacation Hold override early press the Cancel key NOTE When the number of days of Vacation Hold expires the screen shows Following Schedule to indicate that Vacation Hold has ende...

Page 28: ...1 Replace the batteries as soon as LO Batt flashes in the display The LO Battery indicator flashes in the display one month before the batteries run down completely 2 Always use fresh AAA alkaline batteries Non alkaline batteries do not last as long and can leak causing thermostat damage 3 Although the thermostat has a Low Battery indicator replace the batteries once a year to prevent the thermo s...

Page 29: ...al temperature sensor is not used ONE REMOTE INDOOR SENSOR INSTALLED OPTIONAL If one remote indoor temperature sensor is used the screen showing the Inside temperature reading shows the temperature at the indoor remote sensor location The thermostat internal temperature sensor is not used MULTIPLE REMOTE INDOOR SENSORS INSTALLED OPTIONAL If more than one remote indoor sensor is used the screen sho...

Page 30: ...en 5 Press the Reset key to activate the new number of days selected in the previous screen 6 Press the Done key to return to the Home screen SCHED SCHED HOLD HOLD CLOCK SCREEN MORE DONE WAKE LEAVE RETURN SLEEP EDIT CANCEL MON TUE WED THU FRI SAT SUN RESET CHANGE FILTER UV LAMP HUMIDIFIER PAD DAYS M22449 SCHED SCHED HOLD HOLD CLOCK SCREEN DONE WAKE LEAVE RETURN SLEEP CANCEL MON TUE WED THU FRI SAT...

Page 31: ...g at just the right time to have the home reach the scheduled temperature at the scheduled time For example get up at 6 00 AM and want the temperature to be 70 F Set the Wake period for 6 00 AM and 70 F The thermostat then turns on the heat before 6 00 AM to raise the temperature to 70 F by 6 00 AM The thermostat alerts that the heating or cooling system is coming on before a scheduled time by sho...

Page 32: ...y Level Select models can sense the humidity level in the home The humidity level in the home is shown in the lower right corner of the Home Screen If thermostat is set to Auto Changeover System mode press the More key until the humidity level is shown on the screen HEATING COOLING PERCENT LOAD TEMPERATURE THERMOSTAT HEAT SETPOINT P I CONTROL POINT PROPORTIONAL COOL CONTROL POINT THERMOSTAT COOL S...

Page 33: ...n Connection The thermostat uses a red LED indicator that lights when the thermostat is in the Emergency Heat mode The LED is located in the upper right corner of the thermostat It is visible only when on When the thermostat is in the Em Heat system mode the L terminal is continuously energized and the LED is on Heat Pump Temperature Lockouts Dual Fuel Heat Pump and Outdoor Temperature Sensor In t...

Page 34: ...e two temperatures both the Compressor and Auxiliary Heat operate Operation in Emergency Heat Mode Once the thermostat is placed into the Emergency Heat mode the compressor and auxiliary lockout features are turned off In the Emergency heat mode the compressor is locked out The first stage of heat is whatever is connected to the E terminal The second stage of heat is connected to the Aux terminal ...

Page 35: ...age is running at 90 capacity This operation is droopless control Table 10 Sequence of Operation for Power Open and Power Closed Valves or Normally Open Valves System Setting Fan Setting Call for Action Energize Terminals Screen message Off N A None Y None Heat N A None Y None Heat N A Heat W Heat On Table 11 Sequence of Operation for Heat Pump Systems System Setting Fan Setting Call for Action En...

Page 36: ...ated at the factory and cannot be recalibrated in the field SCHED HOLD CLOCK SCREEN MORE MON TUE WED THU FRI SAT A AT SUN AM FAN AUTO SYSTEM HEAT Following Schedule Inside Outside Set To M22453 Table 12 Sensor Resistance at Outdoor Temperature Outdoor Temperature Ohms of Resis tance Outdoor Temperature Ohms of Resis tance F C F C 20 28 9 106926 52 11 1 17136 18 27 8 100923 54 12 2 16387 16 26 7 95...

Page 37: ...stance measurement With an accurate thermometer 1 F 0 5 C measure the temperature at the sensor location allowing time for the thermometer to stabilize before reading To verify sensor resistance remove one wire from one of C7189 wiring terminals Use an ohmmeter to measure the resistance across the sensor Then verify the sensor accuracy with the temperature resistance in Table 13 Calibration The C7...

Page 38: ...ipment on the secondary side of the transformer between power and common If voltage is not present check the heating equipment to find the cause of the problem Check for 24 Vac between the heat terminal W and transformer common If 24 Vac is present the thermostat is functional Check the heating equipment to find the cause of the problem Loose or broken wire connection between thermostat and heatin...

Page 39: ...etup Number 0170 is set to Heat Pump Set System Type Installer Setup Number 0170 to match the installed heating and or cooling equipment Cannot set the system setting to Heat System Type Installer Setup Number 0170 is set to Cool Only Set System Type Installer Setup Number 0170 to match the installed heating and or cooling equipment Cannot set the system setting to Cool System Type Installer Setup...

Page 40: ...ll com yourhome Automation and Control Solutions Honeywell International Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Toronto Ontario M1V 4Z9 VisionPROTM 8000 Touchscreen Programmable Thermostat ...

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