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Honeywell Pro Series Thermostat Manual


The Honeywell Pro Series is a programmable thermostat that features an easy-to-read display and energy-saving modes. The thermostat can be programmed to set up heating and cooling schedules for the day, week, or year. It also has a backlit keypad that makes it easy to see in low light conditions. This manual will walk you through setting up your new Honeywell Pro Series Thermostat so that you can enjoy all the benefits of this great product.

Package Includes

  • T6 Pro Thermostat
  • UWP Mounting System
  • Honeywell Standard Installation Adapter (J-box adapter)
  • Honeywell Decorative Cover Plate –Small; size 4-49/64 in x 4-49/64 in x11/32 in (121 mm x 121 mm x 9 mm)
  • Screws and anchors
  • 2 AA Batteries
  • Installation Instructions and User Guide

Optional Cover Plate Installation

NOTE: If an Optional cover plate is not required, see “UWP Mounting System installation” on the next page.

Use the Optional Cover Plate when:

  • Mounting the thermostat to an electrical junction box
  • Or when you need to cover the paint gap from the old thermostat.
  1. Separate the Junction Box Adapter from the Cover Plate. See Figure 1.
How to separate the junction box

2. Mount the Junction Box Adapter to the wall or an electrical box using any of the eight screw holes. Insert and tighten mounting screws supplied with Cover Plate Kit. Do not overtighten. See Figure 2. 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. See Figure 3.

Attaching the UWP to the box with screws diagram

4. Snap the Cover Plate onto the Junction Box Adapter. See Figure 4.

Snapping the cover plate to the adapter diagram

Uwp Mounting System Installation

5. Before starting, turn the power off at the breaker box or switch. Open package to find the UWP. See Figure 5.

6. Position the UWP on the wall. Level and mark hole positions. See Figure 6. Drill holes at marked positions, and then lightly tap supplied wall anchors into the wall using a hammer.
‒‒ Drill 7/32” holes for drywall.

Positioning the UWP on the wall

7. Pull the door open and insert the wires through the wiring hole of the UWP. See Figure 7.

8. Place the UWP over the wall anchors. Insert and tighten mounting screws supplied with the UWP. Do not overtighten. Tighten until the UWP no longer moves. Close the door. See Figure 8.

Wiring the Honeywell Thermostat to the wall

Power Options

Wiring diagram for the thermostat

Insert R and C wires into designated terminals for primary AC power (C terminal is optional if batteries are installed, but it is recommended). Remove wires by depressing the terminal tabs.

Battery positions

Insert AA batteries for primary or backup power.

Setting Slider Tabs

Set R Slider Tab.

  • Use a built-in jumper (R Slider Tab) 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).
The R/Rc slider tab in the thermostat

NOTE: Slider Tabs for U terminals should be left in place for T6 Pro models.

Wiring Terminal Designations

Wiring terminals guide

Note: Not all terminals may be used, depending on the system type that is being wired. The most commonly used terminals are shaded.

Table showing the wiring layout for the Honeywell Pro Series Thermostat
More wiring layout table rows
  • The terminal can be jumped using Slider Tab. See “Setting Slider Tabs” above.
  • The THP9045A1023 Wire Saver Module is 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. See THP9045 instructions for more information.

Wiring conventional systems: forced air and Hydronics
Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.

1H/1C System (1 transformer)
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor
C 24VAC common [3]
W Heat relay
G Fan relay

Heat-only System
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
C 24VAC common [3]
W Heat relay

Heat-only System (Series 20) [5]
R Series 20 valve terminal “R” [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Series 20 valve terminal “W”
C 24VAC common [3]
W Series 20 valve terminal “B”

Heat-only System
(power open zone valve) [5]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
W Valve
C 24VAC common [3]

1H/1C System (2 transformers)
R Power (heating transformer) [1]
Rc Power (cooling transformer) [1]
Y Compressor contactor
C 24VAC 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 24VAC 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 24VAC 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 24VAC common [3]
W Heat relay (stage 1)
G Fan relay
W2 Heat relay (stage 2)
Y2 Compressor contactor (stage 2)

Notes

Wire specifications: Use 18- to 22-gauge thermostat wire. A shielded cable is not required.

  1. Power supply. Provide disconnect means and overload protection as required.
  2. Move R-Slider Tab on UWP to the R setting. For more information, see “Setting Slider Tabs” on page 3
  3. Optional 24VAC common connection.
  4. The common connection must come from the cooling transformer.
  5. In ISU set Heat system type to Radiant Heat. Set the number of cool stages to 0.
  6. In Installer Setup, set system type to 2Heat/2Cool Conventional

Wiring Heat Pump Systems

Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.

1H/1C Heat Pump System

R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor
C 24VAC 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 24VAC common [3]
O/B Changeover valve [7]
G Fan relay
Aux Auxiliary heat
E Emergency heat relay
L Heat pump fault input

2H/2C Heat Pump System [9]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor (stage 1)
C 24VAC common [3]
O/B Changeover valve [7]
G Fan relay
Y2 Compressor contactor (stage 2)
L Heat pump fault input

3H/2C Heat Pump System
(TH6320U only) [10]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor (stage 1)
C 24VAC common [3]
O/B Changeover valve [7]
G Fan relay
Aux Auxiliary heat
E Emergency heat relay
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 24VAC common [3]
O/B Changeover valve [7]
G Fan relay
Aux Auxiliary heat
E Emergency heat relay
Y2 Compressor contactor (stage 2 – if needed)
L Heat pump fault input
S Outdoor sensor
S Outdoor sensor

Wire specifications: Use 18- to 22-gauge thermostat wire. A shielded cable is not required.

  1. Power supply. Provide disconnect means and overload protection as required.
  2. Move R-Slider Tab on UWP to the R setting. For more information, see “Setting Slider Tabs” on page 3
  3. Optional 24VAC common connection.
  4. In Installer Setup, set system type to 2Heat/2Cool Conventional.
  5. In Installer Setup, set the changeover valve to O (for cool changeover) or B (for heat changeover).
  6. In ISU set Heat system type to Heat pump. 1 compressor and 1 stage of backup heat.
  7. In ISU set Heat system type to Heat pump. 2 compressors and 0 stage of backup heat.
  8. In ISU set Heat system type to Heat pump. 2 compressors and 1 stage of backup heat.

Thermostat Mounting

Mounting the thermostat diagram
  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. Turn the power on at the breaker box or switch.

System Operation Settings

Initial setup diagram for the Honeywell Pro Series Thermostat
  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.

NOTE: Available System modes vary by model and system settings.

System modes:
‒‒ Auto
‒‒ Heat
‒‒ Cool
‒‒ Em Heat
‒‒ Off

Fan Operation Settings

Operating the fan within the thermostat from the control panel
  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.

NOTE: Available Fan modes vary with system settings.

Fan modes:

  • Auto: Fan runs only when the heating or cooling system is on.
  • On: Fan is always on.
  • Circ: Fan runs randomly about 33% of the time.

Installer Setup (isu)

Installing the control panel for the thermostat buttons
  1. Press and hold CENTER and + buttons for approximately 3 seconds to enter the advanced menu.
  2. Press Select to enter ISU.
  3. Press Select to cycle through menu setup options.
  4. Press + or – to change values or select from available options.
  5. Press Select and confirm your settings or press Back to ignore changes and return to ISU menu screen to continue editing another setup option.
  6. To finish the setup process and save your setting, press Home and return to Home screen.

NOTE: A complete list of all setup (ISU) parameters and options starts below and continues through page 10.

Advanced Setup Options (isu)

NOTE: Depending on system settings, not all options may be available.

Table containing the settings for the Honeywell thermostat
Further table rows for the various stages
Backup heat indicator rows

Installer System Test

To perform a System Test:

Performing a test on your Honeywell Pro Series Thermostat using the control panel
  1. Press and hold CENTER and + buttons for approximately 3 seconds to enter advanced menu.
  2. Use + to go to TEST. Press Select to enter System Test.
  3. Use + to change between Heat, Cool, Fan, Em Heat, or Ver (thermostat version information). Press Select.
  4. Press + to turn stages on one at a time, and press to turn them off.
  5. Use the Home button to exit the System Test.

System Test System Status

Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.

Default Security Code

The default security code for the Honeywell Pro Series thermostat is 1234

Heat

0 All Off
1 Heat Stage 1 on
2 Heat Stage 2 also on
3 Heat Stage 3 also on

Cool
0 All Off
1 Cool Stage 1 on
2 Cool Stage 2 also on

Em Heat
0 All Off
1 Em Heat on

Fan
0 Fan Off
1 Fan On

Specifications

Temperature Ranges
Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C)
Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C)
Working Ambient Temperature
32 °F to 120 °F (0 C° to 48.9 °C)
Operating Ambient Temperature
37 °F to 102 °F (2.8 °C to 38.9 °C)
Shipping Temperature
-20 °F to 120 °F (-28.9 °C to 48.9 °C)
Operating Relative Humidity
5% to 90% (non-condensing)
Physical Dimensions in inches (mm) (H x W x D)
4-1/16” H x 4-1/16” W x 1-5/32” D
103.5 mm H x 103.5 mm W x 29 mm D

Electrical Ratings

Various electrical ratings for the thermostat

CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before
beginning installation.

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

CAUTION: 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.

Pull to remove the thermostat from the UWP

How to remove the thermostat control panel from the wall

Customer assistance

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

Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark.
© 2016 Honeywell International Inc.
33-00181EFS—01 M.S. 06-16
Printed in U.S.A.
Printed in U.S.A.

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Honeywell Pro Series Thermostat Manual Image

Manufactured by Honeywell

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