Smart Wi-Fi Programmable Thermostat, 3H/2C, T6 Pro

Honeywell T6 Pro Smart Thermostat – TH6320WF2003/U: Wi-Fi Enabled Control for Residential HVAC Systems

The Honeywell TH6320WF2003/U T6 Pro Smart Thermostat offers Wi-Fi connectivity and multi-stage control, making it suitable for a variety of residential HVAC installations. Designed for professional integration, this thermostat supports up to 3 heat/2 cool heat pump systems and up to 2 heat/2 cool conventional systems. It provides both programmable and location-based temperature control for enhanced energy management.

Professional Features

Built for contractor-grade installations, the T6 Pro Smart uses Honeywell’s Universal Wall Plate (UWP) system to simplify mounting and wiring. Configuration and scheduling can be handled through the device or remotely via the Resideo App, with geofencing support to automate comfort settings based on user location. Its large backlit display ensures clear visibility in diverse lighting conditions.

System Capabilities

• Heat Settings: 40°F to 90°F
• Cool Settings: 50°F to 99°F
• Power Requirements: 20–30 VAC, hardwired (C-wire required for Wi-Fi)
• Stages Supported: 3H/2C heat pump, 2H/2C conventional
• Operating Temperature Range: 37°F to 102°F
• Humidity Range: 5–90% RH (non-condensing)
• Dimensions: 4-1/16" H x 4-1/16" W x 1-3/32" D

Key Functional Features

• Wi-Fi Enabled: Remote access via Honeywell Home/Resideo mobile apps
• Geofencing Capability: Adjusts setpoints automatically based on mobile device location
• Programming Modes: 7-day, 5-1-1, 5-2, or non-programmable
• Changeover Mode: Automatic or manual selectable
• Interface: 6.89 sq-in LED backlit touchscreen

Installation Notes

This thermostat is intended for installation by licensed HVAC technicians. A C-wire connection is required for full smart functionality. The unit comes equipped with the UWP mounting system, terminal block, decorative cover plate, screws, and documentation. Initial setup and system configuration can be completed through the thermostat or remotely once connected to Wi-Fi.

Contractor Considerations

The T6 Pro Smart is designed to meet jobsite demands with durable construction, a standardized mounting footprint, and advanced features that support energy code compliance and customer expectations for smart control. Its compatibility with a wide range of HVAC systems makes it a versatile option for residential applications.

Included Components

• Universal Wall Plate with terminal block
• Cover plate and mounting screws
• Installation and wiring guides