Programmable Touchscreen Thermostat, 3H/2C

Honeywell TH8321WF1001 VisionPRO 8000 with RedLINK and Wi-Fi – Programmable Thermostat

The Honeywell VisionPRO® 8000 TH8321WF1001/U thermostat offers advanced programmable control with built-in Wi-Fi and RedLINK™ capabilities, designed for residential and light commercial applications. It supports multi-stage conventional and heat pump systems, and integrates with connected accessories for remote access and system monitoring.

System Compatibility and Applications

• Controls up to 3 stages of heating and 2 stages of cooling (conventional or heat pump systems)
• Compatible with 24VAC forced air, hydronic, gas, oil, and electric systems
• Supports humidification, dehumidification, and ventilation control
• Works with RedLINK-enabled indoor and outdoor sensors and accessories

Key Features

• Wi-Fi Connectivity: Enables remote monitoring and control via Honeywell’s connected platform
• RedLINK Wireless Integration: Interfaces with wireless sensors and modules such as the EIM (THM5421R1021) and Internet Gateway
• 7-Day Programmable Scheduling: Customizable temperature settings for each day of the week
• Large Backlit Touchscreen: 10-square-inch color display for easy navigation and configuration
• Adaptive Intelligent Recovery: Learns system response time to maintain setpoint accuracy
• Auto Changeover: Automatically switches between heating and cooling modes based on ambient temperature
• Alerts and Reminders: Configurable service and maintenance notifications for system performance

Electrical and Technical Specifications

• Control Range: 40°F to 90°F
• Voltage: 18–30 VAC, 50/60 Hz
• Display: Touchscreen, 10 sq. in.
• Power Method: Hardwired (C-wire required)
• Terminal Designations: R, RC, C, W-O/B, W2-AUX/E, Y, Y2, G, A-L/A, K, U1/U1, S1/S1
• Dimensions: 4-5/8" H × 4-15/16" W × 1-1/8" D

Installation Guidance

While the VisionPRO 8000 is designed for contractor-friendly installation, it may require integration with humidification, dehumidification, and ventilation systems. When connecting RedLINK devices, ensure proper pairing and setup via the system configuration menu. The thermostat should be installed by qualified HVAC professionals to ensure proper wiring, sensor placement, and compliance with applicable codes.

Contractor Advantages

• Wireless Expansion: RedLINK modules simplify retrofit applications and zoning without additional wiring
• Universal Compatibility: Reduces inventory needs with support for most HVAC configurations
• Remote Serviceability: Internet-enabled diagnostics reduce site visits and improve service response
• Reliable Brand Support: Backed by Honeywell’s technical documentation and contractor resources

Summary

The Honeywell TH8321WF1001 VisionPRO 8000 delivers flexible climate control with integrated Wi-Fi and RedLINK support. Ideal for multi-stage systems and integrated IAQ solutions, this thermostat is a robust choice for professionals seeking performance, connectivity, and ease of installation in demanding residential or light commercial projects.