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What is included in the package for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 thermostat?
The package for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 includes the following items:
• T6 PRO Z-Wave Thermostat
• UWP™ Mounting System
• Honeywell Standard Installation Adapter (J-box adapter)
• Honeywell Decorative Cover Plate – Small; Size 4-49/64 in = 121mm.
• Screws and anchors
• 3 AA batteries
• Professional Install Guide
• Getting Started Guide
What systems are compatible with the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 thermostat?
The HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 has the following compatibility:
• Designed for battery operation (3 x AA batteries) or for 24 VAC power operation (via a “C” or common wire).
• Compatible with most single and multi-stage conventional and heat pump systems.
• Designed to work with any Z-Wave compliant controller or gateway; however, a security enabled Z-Wave Plus Controller is recommended to fully utilize all thermostat features.
• Works with millivolt systems.
• Does not work with electric baseboard heat (120-240V).
What important precautions should be taken when installing the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 thermostat?
Please follow these cautions during installation:
• It is strongly recommended that installation is performed by a trained HVAC technician.
• Read the enclosed instructions carefully before installing the new Honeywell T6 Pro Z-Wave Programmable Thermostat.
• ELECTRICAL HAZARD: Can cause electrical shock or equipment damage. Disconnect power before beginning installation.
• To prevent abnormal operation, it is highly recommended to configure the installer setup and set the thermostat to the correct HVAC system before including the thermostat in the Z-Wave network. If the configuration must be changed, first EXCLUDE the thermostat from the network, change the thermostat configuration, and then INCLUDE the thermostat back into the network.
• Before disconnecting wires from the existing thermostat, label the wires with the terminal markings from the old thermostat and record them. Take a picture of the old wiring.
• Use 3 new AA batteries in the thermostat.
How do I install the UWP Mounting System for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
1. Open the package to find the UWP.
2. Position the UWP on the wall. Level and mark hole positions. Drill holes at marked positions, and then lightly tap the supplied wall anchors into the wall using a hammer. Drill 7/32″ holes for drywall.
3. Pull the UWP door open and insert wires through the wiring hole of the UWP.
4. Place the UWP over the wall anchors. Insert and tighten the mounting screws supplied with the UWP. Do not overtighten. Tighten until the UWP no longer moves. Close the door.
When and how should I install the Optional Decorative Cover Plate for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
Use the Optional Cover Plate when mounting the thermostat to an electrical junction box or when you need to cover a paint gap from the old thermostat. To install it:
1. Separate the Junction Box Adapter from the Cover Plate.
2. Mount the Junction Box Adapter to the wall or an electrical box using any of the eight screw holes. Insert and tighten the mounting screws supplied with the Cover Plate Kit. Do not overtighten. Make sure the Adapter Plate is level.
3. Attach the UWP by hanging it on the top hook of the Junction Box Adapter and then snapping the bottom of the UWP in place.
4. Snap the Cover Plate onto the Junction Box Adapter.
What are the power options for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 thermostat?
The HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 can be powered in two ways:
• Primary AC Power: Insert R and C wires into the designated terminals. The C terminal is optional if batteries are installed, but it is recommended. This allows the thermostat to operate in AOS mode (always listening mode) to act as a signal repeater and increase network reliability.
• Battery Power: Insert 3 AA batteries for primary or backup power. Match the polarity of the batteries with the +/- marks inside the battery compartment. If a C wire is not used, the thermostat must be powered by batteries and will operate in LSS mode (power-save, sleep mode) to conserve battery life. The Z-Wave radio will support beaming to allow other devices to wake it up for commands.
Note: The Z-Wave power mode can only be changed when the thermostat is NOT included in a Z-Wave network. You can check the power mode in the thermostat menu under MENU/DEVICE INFO.
How do I connect the wires to the UWP on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
Push down on the tabs to put the wires into the inner holes of their corresponding terminals on the UWP (one wire per terminal) until they are firmly in place. Gently tug on the wires to verify they are secure. If you need to release the wires again, push down the terminal tabs on the sides of the UWP.
How do I set the R Slider Tab on the UWP for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
The built-in jumper (R Slider Tab) is used to differentiate between one or two transformer systems.
• If there is only one R wire, and it is connected to the R, Rc, or RH terminal, set the slider to the up position (1 wire).
• If there is one wire connected to the R terminal and one wire connected to the Rc terminal, set the slider to the down position (2 wires).
Note: Slider Tabs for U terminals should be left in place for other thermostat models.
What are the wiring terminal designations for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
Note: Not all terminals may be used, depending on the system type that is being wired. The most commonly used terminals are shaded.
| Terminal | Designation | Terminal | Designation |
|---|---|---|---|
| S | Input for wired indoor or outdoor sensors | L/A – A | Heat Pump fault input (C wire required) |
| S | O/B | Changeover valve | |
| Y | Compressor contactor (stage 1) | AUX – W2 | Auxiliary heat relay, Heat relay (stage 2) |
| Y2 | Compressor contactor (stage 2) | E | Emergency Heat relay |
| G | Fan Relay | W | Heat relay (stage 1) |
| C | 24 VAC common. For 2 transformer systems, use common wire from cooling transformer. | K | Connect to K on Wire Saver Module** |
| U | Unused | R | 24 VAC power from heating transformer* |
| U | Rc | 24 VAC power from cooling transformer* |
* Terminal can be jumped using Slider Tab.
** The THP9045A1023 or THP9045A1098 Wire Saver Module can be used on heat/cool systems when you only have four wires at the thermostat, and you need a fifth wire for a common wire. Use the K terminal in place of the Y and G terminals on conventional or heat pump systems to provide control of the fan and the compressor through a single wire—the unused wire then becomes your common wire.
How do I wire a conventional system to the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
Use the following wiring configurations for conventional forced air and hydronic systems. Use 18- to 22-gauge thermostat wire. Shielded cable is not required.
1H/1C System (1 transformer)
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
Y: Compressor contactor
C: 24 VAC common [3]
W: Heat relay
G: Fan relay
1H/1C System (2 transformers)
R: Power (heating transformer) [1]
Rc: Power (cooling transformer) [1]
Y: Compressor contactor
C: 24 VAC common [3, 4]
W: Heat relay
G: Fan relay
Heat-only System with Fan
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
C: 24 VAC common [3]
W: Heat relay
G: Fan relay
Cool-only System
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
Y: Compressor contactor
C: 24 VAC common [3]
G: Fan relay
2H/2C System (1 transformer) [6]
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
Y: Compressor contactor (stage 1)
C: 24 VAC common [3]
W: Heat relay (stage 1)
G: Fan relay
W2: Heat relay (stage 2)
Y2: Compressor contactor (stage 2)
NOTES:
[1] Power supply. Provide disconnect means and overload protection as required.
[2] Move R-Slider Tab on UWP to the R setting.
[3] Optional 24 VAC common connection.
[4] If you do not have separate wires for the Aux and E terminals, connect the wire to the Aux terminal.
[5] For Heat-only System (Series 20) or (power open zone valve), in Installer Setup Options (ISU), set system type to Boiler. Set number of cool stages to 0.
[6] In Installer Setup Options (ISU), set system type to Conventional. Set cool stages to 2, and set heat stages to 2.
How do I wire a heat pump system to the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
Use the following wiring configurations for heat pump systems. Use 18- to 22-gauge thermostat wire. Shielded cable is not required. Do NOT use W for heat pump applications. Auxiliary heat must wire to AUX or E.
1H/1C Heat Pump System
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
Y: Compressor contactor
C: 24 VAC common [3]
O/B: Changeover valve [7]
G: Fan relay
2H/1C Heat Pump System [8]
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
Y: Compressor contactor
C: 24 VAC common [3]
O/B: Changeover valve [7]
G: Fan relay
Aux: Auxiliary heat [4]
E: Emergency heat relay [4]
L: Heat pump fault input
3H/2C Heat Pump System [10]
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
Y: Compressor contactor (stage 1)
C: 24 VAC common [3]
O/B: Changeover valve [7]
G: Fan relay
Aux: Auxiliary heat [4]
E: Emergency heat relay [4]
Y2: Compressor contactor (stage 2)
L: Heat pump fault input
Dual Fuel System
R: Power [1]
Rc: [R+Rc joined by Slider Tab] [2]
Y: Compressor contactor (stage 1)
C: 24 VAC common [3]
O/B: Changeover valve [7]
G: Fan relay
Aux: Auxiliary heat [4]
E: Emergency heat relay [4]
Y2: Compressor contactor (stage 2 – if needed)
L: Heat pump fault input
S: Outdoor sensor
S: Outdoor sensor
NOTES:
[1] Power supply. Provide disconnect means and overload protection as required.
[2] Move R-Slider Tab on UWP to the R setting.
[3] Optional 24 VAC common connection.
[4] If you do not have separate wires for the Aux and E terminals, connect the wire to the Aux terminal.
[6] In Installer Setup Options (ISU), set system type to Heat Pump. Set compressor stages to 2, and set Aux/E stages to 0.
[7] In Installer Setup Options (ISU), set Reversing Valve to O/B on Cool (for cool changeover) or to O/B on Heat (for heat changeover).
[8] In Installer Setup Options (ISU), set system type to Heat Pump. Set compressor stages to 1, and set Aux/E stages to 1.
[10] In Installer Setup Options (ISU), set system type to Heat Pump, set compressor stages to 2, and set Aux/E stages to 1.
How do I mount the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 thermostat onto the UWP?
1. Push excess wire back into the wall opening.
2. Close the UWP door. It should remain closed without bulging.
3. Align the UWP with the thermostat, and push gently until the thermostat snaps in place.
4. If needed, gently pull to remove the thermostat from the UWP.
5. Turn the power on at the breaker box or switch.
How do I perform the initial installer setup on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
After the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 has powered up, follow these steps:
1. Touch START SETUP on the thermostat screen.
2. Touch < or > to toggle between Installer Set Up (ISU) options.
3. Touch Edit or the text area, and then touch < or > to edit the default setup option.
4. Touch Done or the text area to confirm the setting, or press Cancel.
5. Touch < or > to continue to set up another ISU option.
6. To finish setup and save your settings, scroll to the Finish screen at the end of the ISU list.
Note: It is highly recommended to perform installer setup and set the thermostat to the correct HVAC system before including it in a Z-Wave network.
How do I add the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 to a Z-Wave network?
After you finish the installer setup and set the date and time, you will be asked to set up a Z-Wave to include the thermostat into the network.
1. Touch Yes to include the thermostat in the Z-Wave network, or touch No if you want to do this later.
2. You’ll be asked to set your primary controller to INCLUDE MODE. Please refer to the user manual of your Z-Wave controller.
3. After the inclusion procedure has been initiated on your Z-Wave controller, touch Select on the thermostat.
4. If the inclusion procedure is successful, INCLUDED, the node ID, and the Z-Wave connected status icon appear on the screen. If the procedure fails, FAILED TO INCLUDE appears on the screen. If this happens, position the thermostat closer to the Z-Wave controller and repeat the inclusion procedure.
To include or exclude the thermostat from a Z-Wave network after the initial setup, go to the thermostat menu: MENU/Z-WAVE SETUP.
How do I interpret the Z-Wave connection status icons on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
The Z-Wave connection status is located in the upper-right corner of the screen.
• Solid icon: The thermostat is included and connected to a Z-Wave network.
• Icon with a slash through it: The thermostat is excluded from a Z-Wave network.
• Flashing icon: The thermostat is either included in a Z-Wave network but the signal is lost, or it is included but AC power is lost (battery used as backup). In this case, the Z-Wave radio is turned off to preserve battery life. AC power must be restored, or you must change the power mode by excluding and then re-including the thermostat in battery power mode.
How do I change the system operation setting on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
1. Press the Mode button to cycle to the next available System mode.
2. Cycle through the modes until the required System mode is displayed and leave it to activate.
System modes:
• Heat: Controls the heating system.
• Cool: Controls the cooling system.
• Off: Turns the heating and cooling systems off.
• Auto: When enabled, the thermostat will automatically use heating or cooling to reach the desired temperature. When active, “Auto Chg. On” will appear on the screen.
• Em Heat: Controls auxiliary or emergency heat; only available on systems with a heat pump.
Note: Em Heat and Auto modes may not appear on the thermostat screen, depending on your equipment and how the thermostat was configured.
How do I change the fan operation setting on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
1. Press the Fan button to cycle to the next available Fan mode.
2. Cycle through the modes until the required Fan mode is displayed and leave it to activate.
Fan modes:
• On: The fan will run continuously.
• Auto: The fan will run only when the heating or cooling system is on.
• Circ: The fan will run at random intervals at least 35% of the time to keep air circulating throughout your home.
Note: Available Fan modes vary with system settings.
How does scheduling work on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
When included in a Z-Wave network (Default Setting):
The thermostat assumes it will be programmed from your Z-Wave controller, and the local program schedule on the thermostat is turned OFF by default. Only Home and Away periods appear on the screen.
• Home: Temperature setpoints are adjustable on the Home screen. Common for all days.
• Away: An Energy saving mode adjustable in the thermostat MENU/AWAY SETTING. Common for all days.
Default settings with schedule OFF:
| Period | Start Time | Heat | Cool |
|---|---|---|---|
| Away | N/A* | 62 ° | 85 ° |
| Home | N/A* | 72 ° | 78 ° |
*Triggered by Z-Wave controller
Optional – Enabling Local Schedule When in a Z-Wave Network:
If your controller doesn’t fully support thermostat functions, you can enable the local schedule (ISU 120 – Schedule type). This allows for different Home and Sleep temperature setpoints.
Default 5+2 schedule settings with schedule ON:
| Period | Start Time | Heat (Mon-Fri) | Cool (Mon-Fri) | Heat (Sat-Sun) | Cool (Sat-Sun) |
|---|---|---|---|---|---|
| Away | N/A* | 62 ° | 85 ° | 62 ° | 85 ° |
| Home | 6:00 AM | 70 ° | 78 ° | 70 ° | 78 ° |
| Sleep | 10:00 PM | 62 ° | 85 ° | 62 ° | 85 ° |
*Triggered by Z-Wave controller
When NOT included in a Z-Wave network:
The thermostat will function as a fully programmable thermostat with 4 unique periods (Wake, Away, Home, Sleep). Temperature setpoints for all four periods are adjustable in the thermostat MENU/SCHEDULE.
Default 5+2 schedule settings:
| Period | Start Time | Heat (Mon-Fri) | Cool (Mon-Fri) | Heat (Sat-Sun) | Cool (Sat-Sun) |
|---|---|---|---|---|---|
| Wake | 6:00 AM | 70 ° | 78 ° | 70 ° | 78 ° |
| Away | 8:00 AM | 62 ° | 85 ° | 62 ° | 85 ° |
| Home | 6:00 PM | 70 ° | 78 ° | 70 ° | 78 ° |
| Sleep | 10:00 PM | 62 ° | 85 ° | 62 ° | 85 ° |
What are the key features on the main screen of the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
• System status information: Displays “Cool On”, “Heat On”, “Emergency Heat On”, “Recovery”, or “Auto Changeover On”.
• Time, ISU #, or Alert #: Shows the current time, Installer Setup (ISU) number during setup, or an alert number if there is an issue.
• Z-Wave connection status: Shows the current Z-Wave connection status.
• Messaging: Shows device setup options, menu options, reminders, and schedule overrides.
• Schedule information: Shows “Following Schedule” or other occupancy-based control status.
• Desired temperature: Displays the desired temperature setting.
• Schedule period: Shows the current schedule period: Wake/Away/Home/Sleep (varies based on Z-Wave and schedule settings).
• Indoor temperature / % indoor relative humidity: Touch this area to display either the indoor temperature or % indoor relative humidity.
• Fan: Selects the Fan mode (Auto/On/Circulate).
• Mode: Selects the system mode: Auto/Heat/Cool/Off/EM Heat (Emergency Heat).
• Menu: Touch to display user options. A long press of the Menu button for 5 seconds accesses Advanced Menu options.
How do I access the advanced menu on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
To access the advanced menu, press and hold the Menu button for 5 seconds. Touch < or > to go through the options in the advanced menu.
Advanced menu options include:
• Device Setup: Used to access the device ISU (Installer Set Up) settings.
• Screen Lock: The thermostat touch screen can be locked fully or partially.
• System Test: Test the heating and cooling system.
• Reset: Access all reset options on the thermostat, including the factory reset.
• Range Stop (Temperature): Set the Minimum Cool and Maximum Heat temperature set points.
What are the Installer Setup Options (ISU) for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
The following tables detail the available ISU options, which may vary depending on the thermostat model and equipment setup. Defaults are in bold.
| # ISU | ISU Name | ISU Options | Notes |
|---|---|---|---|
| 120 | Schedule Type | No Schedule or Occupancy (when included in Z-Wave network) MO-SU = Every day the same MO-FR, SA, SU = 5-1-1 schedule MO-FR, SA-SU = 5-2 schedule Each Day = Every day individual | Change schedule defaults here. To edit periods, setpoints, or turn schedule On/Off, go to MENU/SCHEDULE. |
| 125 | Temp Scale | Fahrenheit, Celsius | |
| 130 | Outdoor Temp | No, Wired | An outdoor temperature sensor is required for ISUs 355 and 356. Use a wired sensor connected to the “S” terminals. |
| 200 | System Type | Conventional Forced Air Heat Pump Boiler Cool Only | Basic selection of your system. |
| 205 | Equipment Type | Conventional Forced Air Heat: Standard Efficiency Gas (STD GAS), High Efficiency Gas (EFF GAS), Oil, Electric, Hot Water Fan Coil Heat Pump: Air To Air, Geothermal Boiler: Hot Water Radiant Heat, Steam | Selects the equipment type. Not displayed if ISU 200 is set to Cool Only. |
| 218 | Reversing Valve | O/B on Cool, O/B on Heat | Displayed if ISU 200 is Heat Pump. Selects when reversing valve O/B should energize. |
| 220 | Cool Stages | 0, 1, 2 | |
| 221 | Heat Stages; Aux/E Stages | Heat Stages: 0, 1, 2 AUX/E Stages: 0, 1 | Max 2 Heat Stages for conventional. Max 1 Aux/E stage for heat pump. |
| 230 | Fan Control | Equipment, Thermostat | Displayed if ISU 205 is Electric Forced Air or Fan Coil. |
| 253 | Aux/E Control | Both Aux/E, Either Aux/E | Set “EITHER AUX/E” to control Auxiliary and Emergency heating separately. Displayed if ISU 200 is Heat Pump AND ISU 221 Aux/E stages = 1. |
| 255 | Aux Heat Type | Electric, Gas/Oil (or Fossil Forced Air) | Displayed only if ISU 200 is heat pump AND ISU 221 Aux/E heat stages = 1. |
| # ISU | ISU Name | ISU Options | Notes |
|---|---|---|---|
| 256 | EM Heat Type | Electric, Gas/Oil (or Fossil Forced Air) | Displayed if ISU 200 is Heat Pump, ISU 221 Aux/E stages=1, AND ISU 253 is Either Aux/E. |
| 260 | Fossil Kit Control | Thermostat, External | Displayed if ISU 200 is Heat Pump, ISU 221 Aux/E stages=1, AND ISU 256 is Gas/Oil. |
| 300 | Auto Changeover | On, Off | ON allows user to select Auto Changeover mode. |
| 303 | Auto Differential | 0°F to 5°F or 0.0°C to 2.5°C | Minimum degrees from setpoint needed to switch to the opposite mode (heat/cool). |
| 305 | High Cool Stage Finish | Yes, No | Displayed for 2 cool stages. YES keeps the higher stage running until setpoint is reached. |
| 306 | High Heat Stage Finish | Yes, No | Displayed for 2+ heat stages. YES keeps the higher stage running until setpoint is reached. |
| 340 | Aux Heat Droop | 0 = Comfort; 2°F to 15°F from setpoint | The indoor temp must drop to this setting before Aux Heat will turn on. |
| 350 | Up Stage Timer Aux Heat | Off, 30, 45, 60, 75, 90 minutes; 2, 3, 4, 5, 6, 8, 10, 12, 14, 16 hours | Timer starts when previous heating stage turns on. Aux heat used when timer expires. |
| 355 | Balance Point (Compressor Lockout) | Off, 5°F to 60°F | Requires outdoor temp. Locks out the heat pump and runs Aux Heat when outdoor temp is below this setting. |
| 356 | Aux Heat Lock Out | Off, 5°F to 65°F | Requires outdoor temp. Prevents expensive Aux Heat from running when outdoor temp is above this setting. |
| # ISU | ISU Name | ISU Options | Notes |
|---|---|---|---|
| 365 | Cool 1 CPH | 1-6 CPH (3 CPH) | Cycles Per Hour. Limits max times system can cycle in 1 hour at 50% load. |
| 366 | Cool 2 CPH | 1-6 CPH (3 CPH) | Displayed when Cool Stages is set to 2. |
| 370 | Heat 1 CPH | 1-12 CPH | Recommended default settings vary by equipment type (e.g., Gas Forced Air = 5 CPH, Electric = 9 CPH, Steam = 1 CPH). |
| 371 | Heat 2 CPH | 1-12 CPH | Displayed when Heat Stages is set to 2. |
| 375 | Aux Heat CPH | 1-12 CPH | Displayed when Auxiliary Heat is configured. |
| 378 | EM Heat CPH | 1-12 CPH | Displayed when Emergency Heat is configured independently. |
| 387 | Compressor Protection | Off, 1-5 minutes | Minimum off timer to prevent compressor from restarting too early. |
| 390 | Ext Fan Run Time in Cool | Off, 30, 60, 90 seconds | Keeps fan on after cooling ends for increased efficiency. |
| 391 | Ext Fan Run Time in Heat | Off, 30, 60, 90 seconds | Keeps fan on after heating ends for increased efficiency. |
| # ISU | ISU Name | ISU Options | Notes |
|---|---|---|---|
| 425 | Adaptive Recovery | On, Off | Adaptive Intelligent Recovery (AIR) turns equipment on earlier to ensure indoor temp matches setpoint at the scheduled time. |
| 430 | Minimum Cool Setpoint | 50°F to 99°F | User cannot set cooling temp below this level. |
| 431 | Maximum Heat Setpoint | 40°F to 90°F | User cannot set heating temp above this level. |
| 435 | Lock Screen | None, Partial, Full | Unlocked: Full access. Partial: Can only modify temp. Full: Cannot modify any settings. |
| 500 | Indoor Sensor | Yes, No | Set to Yes to use a remote indoor sensor wired to “S” terminals. |
| 515 | Sensor type | 10k, 20k | Choose resistance type of wired indoor sensor. |
| 520 | Temperature Control | Thermostat, Wired, Average | Choose what temperature source to use. |
| 702 | Air Filters | 0 – 2 | Number of air filters in the system. |
| 711 | Air Filter 1 Reminder | Off, Run Time Days, Calendar Days, or Months | Set reminder for filter 1. |
| 712 | Air Filter 2 Reminder | Off, Run Time Days, Calendar Days, or Months | Set reminder for filter 2. |
| 810 | Hum Pad Reminder | Off, 6, 12 Calendar Months | |
| 921 | Dehum Filter Reminder | Off, Calendar Days or Months | |
| 1018 | Vent Filter Reminder | Off, 3, 6, 9, 12 months |
| # ISU | ISU Name | ISU Options | Notes |
|---|---|---|---|
| 1100 | UV Devices | 0 – 2 | Set up reminders for up to two UV devices. |
| 1105 | UV Bulb 1 Reminder | Off, 6, 12, 24 months | |
| 1106 | UV Bulb 2 Reminder | Off, 6, 12, 24 months | |
| 1401 | Idle Brightness | 0= Off, 0 – 5 | Adjust brightness of inactive backlight. Only available if powered by 24 VAC (C-wire). |
| 1410 | Clock Format | 12 hour, 24 hour | |
| 1415 | Daylight Saving | On, Off | Set to Off in areas that do not observe Daylight Saving Time. |
| 1420 | Temperature Offset | Off, -3°F to 3°F | Adjusts the displayed temperature to match the actual room temperature. |
How do I perform a system test on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
You can test the system setup in the ADVANCED MENU under the SYSTEM TEST option.
1. Press and hold Menu on the thermostat for 5 seconds to access ADVANCED MENU options.
2. Touch < or > to go to SYSTEM TEST.
3. Touch Select or the text area.
4. Touch < or > to select the system test type (e.g., Heat Test, Cool Test). Touch Select or the text area.
5. For the heat and cool tests, use + or – to activate each stage of the equipment. For the fan test, use < or > to turn the fan on and off.
Note: The clock is used as a timer while the stages are running. The “Heat On” and “Cool On” indicators are displayed when the system test is running.
How do I view the equipment status on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
You can see the status of thermostat-controlled equipment in the Menu under the EQMT STATUS option.
1. Touch Menu on your thermostat.
2. Touch < or > to go to EQMT STATUS. Touch Select or the text area.
3. Touch < or > to view statuses of all the equipment the thermostat is controlling, such as heating, cooling, and the fan.
What do the alerts and reminders on the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 mean?
Alerts and reminders are displayed via an alert symbol and number in the clock area on the home screen. You can read more information about active alerts in Menu/Alerts.
| Number | Alert/Reminder | Definition |
|---|---|---|
| 54 | Thermostat Humidity Sensor Error | The sensor of the thermostat has encountered an error. Please contact a dealer to replace the thermostat. |
| 164 | Heat Pump Needs Service | Heat pump needs service. Contact a dealer to diagnose and service the heat pump. |
| 170 | Internal Memory Error | The memory of the thermostat has encountered an error. Please contact a dealer for assistance. |
| 171 | Set the Date and Time | Set the date and time on your thermostat. The date and time are required for certain features to operate, like the program schedule. |
| 173 | Thermostat Temperature Sensor Error | The sensor of the thermostat has encountered an error. Please contact a dealer to replace the thermostat. |
| 177 | Indoor Temperature Sensor Error | Wired indoor temperature sensor is not connected or there is a wiring short. Please contact a dealer for assistance. |
| 178 | Outdoor Temperature Sensor Error | Wired outdoor temperature sensor is not connected or there is a wiring short. Please contact a dealer for assistance. |
| 181 | Replace Air Filter (1) | Replace air filter (1). Reset the timer by touching the “dismiss” button on the thermostat screen after it is replaced. |
| 182 | Replace Air Filter (2) | Replace air filter (2). Reset the timer by touching the “dismiss” button on the thermostat screen after it is replaced. |
| 184 | Replace Humidifier Pad | Replace humidifier pad. Reset the timer by touching the “dismiss” button on the thermostat screen after it is replaced. |
| 185 | Replace Dehumidifier Filter | Replace the dehumidifier filter. Reset the timer by touching the “dismiss” button on the thermostat screen after it is replaced. |
| 187 | Clean or Replace Ventilator Filter | Clean or replace ventilator filter. Reset the timer by touching the “dismiss” button on the thermostat screen after it is replaced. |
| 188 | Replace UV Bulb (1) | Replace UV Bulb (1). Reset the timer by touching the “dismiss” button on the thermostat screen after it is replaced. |
| 189 | Replace UV Bulb (2) | Replace UV Bulb (2). Reset the timer by touching the “dismiss” button on the thermostat screen after it is replaced. |
| 252 | AC Power Lost | If batteries used as backup power, Z-Wave communication needs to be turned off to avoid draining them. Exclude and re-include the thermostat to change the power mode to LSS (power-save) or resume AC power. |
| 405 | Battery Low | Battery low. Please turn the system mode to off and replace the batteries. |
| 407 | Battery Critical | Battery critical. Thermostat cannot control your system. Please replace the batteries immediately. |
| 546 | Z-Wave Not Configured | Z-Wave has not been configured yet to receive commands from your Z-Wave network. Please follow steps on how to include the thermostat into the Z-Wave network. |
| 547 | Z-Wave Radio Error | Z-Wave module is not operating. Thermostat cannot receive commands from your Z-Wave network. Please contact a dealer to replace the thermostat. |
How do I troubleshoot common issues with the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003?
Screen is blank
• Check circuit breaker and reset if necessary.
• Make sure power switch at heating and cooling system is on.
• Make sure furnace door is closed securely.
• If battery powered, make sure the batteries are correctly inserted and are not dead.
Screen is difficult to read
• Change screen brightness in the thermostat Menu. Increase brightness intensity for inactive backlight of the thermostat screen (max. is level 5). Setting is available only if the thermostat is AC powered.
Heating or cooling system does not respond
• Touch Mode to set system to Heat. Make sure the temperature is set higher than the Inside temperature.
• Touch Mode 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.
Heat runs with cooling
• Verify there is not a wire attached to W for heat pump systems. See wiring instructions.
What are the electrical ratings for the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 terminals?
| Terminal | Voltage (50/60Hz) | Running Current |
|---|---|---|
| W Heating | 18-30 Vac | 0.02-1.0 A |
| (Powerpile) | 750 mV DC | 100 mA DC |
| W2 (Aux) Heating | 18-30 Vac | 0.02-1.0 A |
| E Emergency Heat | 18-30 Vac | 0.02-0.5 A |
| Y Compressor Stage 1 | 18-30 Vac | 0.02-1.0 A |
| Y2 Compressor Stage 2 | 18-30 Vac | 0.02-1.0 A |
| G Fan | 18-30 Vac | 0.02-0.5 A |
| O/B Changeover | 18-30 Vac | 0.02-0.5 A |
| L/A Input | 18-30 Vac | 0.02-0.5 A |
What Z-Wave command classes does the HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 support?
The HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 supports the following Z-Wave Command Classes:
• Z-Wave Plus Info V2
• Supervision V1
• Transport Service V2
• Association V2
• Version V2
• Association Group Information V2
• Basic V1
• Battery V1
• Clock V1
• Configuration V4
• Device Reset Local V1
• Manufacturer Specific V2
• Sensor Multilevel V5
• Notification V3
• Powerlevel V1
• Security 2 V1
• Thermostat Fan Mode V3
• Thermostat Fan State V1
• Thermostat Mode V3
• Thermostat Operating State V1
• Thermostat Setpoint V2
Basic V1 (basic set command implementation):
• Value 0x00: Device goes to Energy saving setting (AWAY mode).
• Values 0x01-0x63 and 0xFF: Device goes to Comfort setting (HOME mode).
Notification V3:
• Notification V3 is enabled by default for power management alarm handling. Notification Type: Power Management (0x08). Notification Events: AC mains disconnected (0x02), AC mains re-connected (0x03).
Security:
• All supported Z-Wave Command classes are supported securely (S2 unauthenticated), except Transport Service V2, Security 2 V1 and Z-Wave Plus Info V2.
Association V2:
• Group ID: 1; Maximum Nodes: 1; Description: Z-Wave Plus Lifeline.
• Command Classes reported: Multilevel Sensor, Thermostat Setpoint, Thermostat Mode, Thermostat Fan Mode, Thermostat Operating State, Thermostat Fan State, Basic.
How to use the PDF below:
* Touchscreen: Swipe up/down with-in the PDF to scroll and pinch or spread with two fingers to zoom.
* Mouse: While your mouse is hovering over the PDF, use the mouse wheel to scroll and click on the – / + buttons at the bottom of the PDF to zoom.
CLICK HERE TO DOWNLOAD HONEYWELL T6 PRO Z-WAVE TH6320ZW2003 (01) PDF DOCUMENT
Goes into heat mode for no reason?
Here are some troubleshooting tips if your Honeywell T6 Pro Z-Wave Thermostat is unexpectedly going into heat mode:
Check the temperature setpoint. Make sure the temperature setpoint is not set higher than the current indoor temperature. If it is, the thermostat will turn on the heating system to try to reach the setpoint.
Check the schedule. The thermostat may be programmed to turn on the heat at a certain time. You can view and edit the schedule by going to Menu/Schedule on the thermostat.
Check for a Z-Wave command. If the thermostat is included in a Z-Wave network, it may be receiving commands from your Z-Wave controller to turn on the heat. Check the settings in your controller’s app to see if this is the case.
Check for system malfunctions. There may be a problem with the thermostat itself, the wiring, or the heating system. If you suspect a malfunction, it is best to contact a qualified HVAC technician.
Here are some additional details from the PDF that might be helpful:
The thermostat has a built-in compressor protection feature that prevents the compressor from restarting too early after a shutdown. This could potentially cause a delay in the heating system turning on.
The thermostat can be configured to use either the thermostat’s built-in temperature sensor, a wired indoor sensor, or an average of the two. If the thermostat is using the wrong sensor or if there is a problem with the sensor, it could cause the thermostat to incorrectly turn on the heat.
The thermostat can be configured with a temperature offset. This allows you to adjust the displayed temperature up or down by up to 3°F. If the offset is set incorrectly, it could cause the thermostat to turn on the heat when it is not actually needed.
I put my T6 Pro into heat mode from cool mode. The temperature in the room was below the cool mode but the weather is changing and it was a little too cold. Looking for come heat I switch the thermostat. I no longer have a thermostat. Checked the circuit breaker and all the necessary’s. Still no there no thermostat what happened?