Resideo VisionPRO® TH8000 Series Touch-screen Programmable Thermostat

Wallplate Installation

1. Separate wallplate from thermostat.
2. Mount wallplate as shown below.

To remove the thermostat from the wallplate, grasp the top and bottom of the wallplate and pull to remove the thermostat.

Drilling Instructions:

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

Diagram Description: Shows wallplate with wire hole, mounting screws, and wall anchors.

Installation Requirements

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.

Safety Notices

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.

Power Options

Diagram Description: Shows terminal layouts for Conventional and Heat Pump systems, and indicates where to insert batteries for primary or backup power. For 24VAC primary power, connect the common side of the transformer to the "C" terminal.

Wiring: Remove the factory-installed jumper only for two-transformer systems. Push excess wire back into the wall opening. Plug the wall opening with non-flammable insulation.

Terminal Designations

Shaded areas below apply only to TH8320/TH8321.

Conventional Terminal Letters:

Heat Pump Terminal Letters:

Wiring Guide - Conventional Systems

Shaded areas below apply only to TH8320/TH8321.

1H/1C System (1 transformer)

1H/1C System (2 transformers)

Heat Only System

Heat Only System (Series 20)

Heat Only System With Fan

Cool Only System

2H/2C System (1 transformer)

2H/2C System (2 transformers)

Notes:

• [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.

Wiring Guide - Heat Pump Systems

Shaded areas below apply only to TH8320/TH8321.

1H/1C Heat Pump (no auxiliary heat)

2H/1C Heat Pump (with auxiliary heat)

2H/2C Heat Pump (no auxiliary heat)

3H/2C Heat Pump (with auxiliary heat)

Notes:

• [1] Power supply. Provide disconnect means and overload protection as required.
• [3] Optional 24VAC common connection.
• [5] O/B set to control as either O or B in installer setup.
• [6] If L terminal is used, 24VAC common (terminal C) must be connected.
• [7] Heat pump reset (powered continuously when thermostat is set to Em. Heat; system monitor when set to Heat, Cool, or Off).

Mounting and Setup

Remove Tab and Mount Thermostat

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

Diagram Description: Shows the thermostat with a tab being removed, and then being attached to the wallplate.

Set Date and Time

Use the [up-arrow] and [down-arrow] buttons to set the date (year, month, day) and time. Press DONE to save changes and exit.

Diagram Description: Shows the thermostat display with buttons for setting date and time.

Installer Setup

1. Press the SYSTEM button.
2. Press and hold the SYSTEM and HEAT buttons until the display changes.
3. Change settings as required (see pages 7-9).

Diagram Description: Shows the thermostat display during the installer setup process, indicating buttons to press and settings to change.

Installer Setup Functions

Shaded areas below apply only to TH8320/TH8321.

Setup Functions and Settings:

Installer System Test

During installer setup, press the [up-arrow] repeatedly until "Test" appears.

Diagram Description: Shows the thermostat display changing from settings to a "TEST" screen.

Press the [up-arrow] or [down-arrow] to select the test, and press the [up-arrow] or [down-arrow] to change the status. Press DONE to terminate testing.

System Test Descriptions:

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

Special Functions

Shaded areas below apply only to TH8320/TH8321.

• Auto Changeover (Setup Function 0300): When set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 2 degrees apart. If function 0380 is set to On, the heat and cool settings must be at least 5 degrees apart.
• Remote Sensor (Setup Function 0340): If an optional outdoor sensor is installed, the thermostat can display the outside temperature. If an optional remote indoor sensor is installed, the thermostat will display the temperature at the sensor location (the internal sensor in the thermostat is not used).
• Adaptive Intelligent Recovery (Setup Function 0530): Allows the thermostat to “learn” how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the scheduled time.
• Compressor Protection (Setup Function 0580): Forces the compressor to wait a few minutes before restarting, to prevent damage. During this time, the message "Wait" flashes on the display.
• Dehumidification control (Setup Function 0380): TH8321 models monitor the indoor humidity level and automatically activate the cooling system to reduce humidity by lowering the temperature by up to 3 degrees below the current cool setting.
• Heat Pump Temperature Lockout (with fossil-fuel backup): If the thermostat is installed with an optional outdoor sensor, you can select a compressor lockout temperature (Function 0350). When the outdoor temperature is below the lockout temperature, only the auxiliary heat operates. When the outdoor temperature is above the lockout temperature, only the compressor operates.
• Heat Pump Temperature Lockouts (with electric heat backup): If the thermostat is installed with an optional outdoor sensor, you can select a compressor lockout temperature (Function 0350) and/or an auxiliary heat lockout temperature (Function 0360). When the outdoor temperature is below the compressor lockout temperature, only the auxiliary heat operates. When the outdoor temperature is above the auxiliary lockout temperature, only the compressor operates. If the outdoor temperature is between the compressor and auxiliary lockout temperatures, both the compressor and auxiliary heat can operate.

Accessories & Replacement Parts

Please contact your distributor to order replacement parts.

• Outdoor temperature sensor: Part Number C7089U1006
• Remote indoor temperature sensor: Part Number C7189U1005
• Cover plate*: Part Number 32003796-001

*Use to cover marks left by old thermostats.

Specifications

Temperature Ranges:

• Heat: 40° to 90°F (4.5° to 32°C)
• Cool: 50° to 99°F (10° to 37°C)

Operating Ambient Temperature:

• 0° to 120°F (-18° to 48.9°C)

Shipping Temperature:

• -30° to 150°F (-34° to 66°C)

Operating Relative Humidity:

• 5% to 90% (non-condensing)

Physical Dimensions:

• 4-9/16" H x 6" W x 1-3/8" D
• 116 mm H x 152 mm W x 35 mm D

Electrical Ratings:

Need Help?

For assistance with this product please visit http://customer.resideo.com or call Resideo Customer Care toll-free at 1-800-468-1502.

Resideo

Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502

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