Resideo TH8321WF1001 Thermostat

The Resideo TH8321WF1001 is a robust, hardwired Wi-Fi VisionPRO 8000 digital thermostat engineered for versatile application in both residential and light commercial environments. Designed to handle up to 3 Heat/2 Cool Heat Pump or up to 2 Heat/2 Cool Conventional systems, this unit provides precise control via 18-30Vac screw terminals. It features a high-resolution 10 sq. in. touchscreen interface with 7-day programmable or non-programmable options, allowing for tailored scheduling or manual operation. Integrated Wi-Fi connectivity enables remote management through the Total Connect Comfort app, supporting advanced staging and intelligent recovery to reach setpoints efficiently. The device includes a common wire (C-wire) requirement for digital stability and supports auxiliary IAQ equipment, such as humidifiers or ventilators, via a universal relay. With a wide temperature control range—40-90°F for heating and 50-99°F for cooling—this ENERGY STAR certified controller is a reliable solution for complex HVAC configurations including dual-fuel systems.

• Multi-Stage Compatibility: Supports complex equipment including 3H/2C heat pumps and dual-fuel configurations.
• IAQ Equipment Control: Integrated terminals for direct management of humidification, dehumidification, or ventilation systems.
• Remote Connectivity: Built-in 802.11b/g/n Wi-Fi allows for remote monitoring and scheduling via smartphone or tablet.
• Flexible Programming: Choose between a standard 7-day schedule or a simplified non-programmable interface for ease of use.
• Commercial Utility: Features a 365-day scheduling option and keypad lockout capabilities ideal for commercial property management.

Is a common wire required for the TH8321WF1001?
Yes, this model is hardwired and requires a 24VAC common wire (C-wire) for constant power. It does not operate on batteries alone.

Can this thermostat control a humidifier?
Yes, it features universal U1 terminals that can be configured to control IAQ equipment such as a whole-home humidifier or dehumidifier.

Does it support dual-fuel (Hybrid) systems?
Yes, the VisionPRO 8000 can manage the switchover points between a heat pump and a backup gas or oil furnace when properly configured in the installer setup.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.