Resideo TH6220U2000 Thermostat

The Resideo TH6220U2000 is a versatile T6 Pro Programmable Thermostat engineered for multi-stage applications, supporting up to 2 Heat/2 Cool Conventional Systems and 2 Heat/1 Cool Heat Pumps. Designed with a flexible scheduling architecture, it allows technicians to configure 7-day, 5-1-1 day, 5-2 day, or non-programmable modes depending on the client’s preference. This unit operates on 20-30 Vac and offers dual power options, running via C-wire hardwired or AA batteries. With a precise +/- 1 degree differential and a heating setpoint range of 40-90°F, it ensures tight temperature control and system efficiency. The backlit LED display provides clear visibility during service calls, while its UWP mounting system streamlines installation by using a universal bracket across the T-Series line. Serving as a direct Honeywell T6 replacement for the RS6220, 9615, VST1050, and PSP602, it simplifies truck stock by covering a wide range of legacy equipment requirements.

• Universal Compatibility: Works with gas, oil, electric, and heat pump systems including auxiliary heat stages.
• Simplified Installation: Utilizes the UWP mounting system for faster tear-outs and replacements.
• Flexible Power: Supports battery operation or 24VAC hardwiring for versatile site requirements.
• Precise Control: Maintains temperature within 1°F accuracy to prevent short-cycling and occupant discomfort.

Common Questions

How do I configure the TH6220U2000 for a heat pump with electric back-up?
During the initial installer setup (ISU), menu 200 must be set to "Heat Pump" and menu 205 must be configured for the correct number of stages, ensuring the changeover valve (O/B terminal) is set correctly for the specific brand of outdoor unit.

Can the Resideo T6 Pro be used without a common wire?
Yes, the TH6220U2000 can be powered strictly by AA batteries, making it an ideal solution for retrofitting older 4-wire systems where pulling a new 18/5 thermostat wire is not feasible.

What is the difference between the T6 Pro and older FocusPRO models?
The T6 Pro features the UWP mounting system, a larger display with improved backlight, and more granular scheduling options compared to legacy FocusPRO 6000 series units.

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.