Programmable Thermostat, 2H/1C Heat Pump, 2H/2C Conventional, T6 Pro

Honeywell T6 Pro TH6220U2000/U – Programmable Thermostat for 2H/2C Systems

The Honeywell T6 Pro TH6220U2000/U thermostat offers professional-grade flexibility for controlling a wide range of HVAC systems. Designed to support up to 2 Heat/2 Cool conventional systems or 2 Heat/1 Cool heat pump configurations, this model is equipped with adaptive programming, universal compatibility, and streamlined installation through the Universal Wall Plate (UWP) system.

System Compatibility and Control

• Supports up to 2H/2C conventional or 2H/1C heat pump systems
• Compatible with gas, oil, electric, and forced air HVAC equipment
• Works with 24 VAC systems and requires a common (C) wire for Wi-Fi versions

Key Features

• 7-Day, 5-1-1, or 5-2 Programming: Customizable scheduling options provide flexibility for residential or light commercial needs
• 5.44 sq-in Backlit Display: Large screen with soft-key navigation for enhanced visibility and usability
• UWP Mounting System: Allows rapid installation and swap-outs across compatible Honeywell T Series models
• Auto/Manual Changeover: Selectable mode switching based on application preferences
• Dual Power Capability: Operates via hardwired 24 VAC or battery-powered configuration

Technical Specifications

• Control Temperature Range: 40°F to 90°F (heating), 50°F to 99°F (cooling)
• Temperature Differential: Fixed at 1°F
• Humidity Operating Range: 5% to 90% RH (non-condensing)
• Terminal Designations: R, Rc, C, W, W2, Y, Y2, G, O/B, AUX/E, L, K
• Power Supply: 20–30 VAC or 2 AA batteries
• Dimensions: 4-1/16" H × 4-1/16" W × 1-3/32" D

Installation and Setup

The T6 Pro TH6220U2000/U is engineered for contractor efficiency with guided installer setup menus and tool-free terminal connections on the UWP base. Professional installation is recommended for configurations involving multi-stage systems or dual-fuel applications. Basic wiring tools and a reference to the system wiring diagram are required for successful setup.

Contractor Considerations

• Cross-System Compatibility: Reduces SKU count while covering a wide range of system types
• Quick Mounting: UWP and intuitive interface shorten install times
• Reliable Operation: Configurable alerts and diagnostics support ongoing serviceability

Summary

The Honeywell T6 Pro TH6220U2000/U is a programmable thermostat optimized for both performance and installer convenience. With universal HVAC compatibility, flexible scheduling, and Honeywell’s trusted platform design, it delivers dependable control across a broad range of residential and commercial installations.