This installation guide covers the Honeywell T6 Pro Smart Programmable Thermostat models TH6220WF2006 and TH6320WF2003.

Models: TH6220WF2006, TH6320WF2003
Document: Professional Install Guide
Document Number: 33-00392-09
Pages: 20
Format: PDF
Language: English

The guide includes UWP mounting instructions, terminal descriptions, wiring diagrams for conventional and heat pump systems, and installer setup options. It also covers equipment configuration, system testing, and advanced thermostat settings.

This thermostat requires 24 VAC power with a C wire. It is not compatible with 120–240V electric baseboard heating or millivolt systems. Check the equipment compatibility and wiring diagrams before installation.