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Lyric T6 Pro Wi-Fi Programmable Thermostat with stages up to 3 Heat/2 Cool Heat Pump or 2 Heat/2 Cool Conventional with Ventilation


Lyric T6 Pro Wi-Fi Programmable Thermostat with stages up to 3 Heat/2 Cool Heat Pump or 2 Heat/2 Cool Conventional with Ventilation

  • Product Info
  • Literature
  • Accessories & Replacement Parts


The T6 Pro Wi-Fi offers functionality that’s easy to use and smart features that are easy to love. Program it based on the homeowners' schedule, or let it adapt to their life as plans change. Homeowners can adjust it from anywhere using a smartphone or tablet, ensuring maximum comfort when at home and energy savings whether they are home or away.


  • TH6320WF2003 Up to 3H/2C heat pump and 2H/2C conventional
  • TH6220WF2006 Up to 2H/1C heat pump and 2H/2C conventional
  • Geofencing, 7-day, 5-2, 5-1-1, 1-week or non-programmable
  • Optional ventilation control for projects that need to meet the ASHRAE 62.2 standard (TH6320WF only)
  • Optional dual fuel (TH6320WF only)
  • Uses the UWP mounting system that’s standard across all T Series thermostats
  • Setup and scheduling can be done at the wall on the thermostat, or using the Lyric app
  • Simple homeowner hand-off process enables customers to complete the Wi-Fi connection process on their own
  • Integrates with smart home Apple HomeKit and Amazon Alexa for customers who want to control their smart home devices from a single app
  • Customers can program a schedule or use location-based control with geofence technology, which uses their smartphone location to save energy when they’re away and make the home comfortable when they return
  • Optional wired indoor/outdoor sensors
  • Large touchscreen display
  • 5-year warranty
  • ENERGY STAR® Certified

Product Specifications

24 Vac systems; Gas, Oil, Electric Warm Air; Hot water Coil; Gas, Oil, Electric Hydronic; or Steam / Gravity Systems
Dimensions (in.)
4-1/16 in. long x 4-1/16 in. wide x 1-3/32 in. deep
Dimensions (mm)
103.6 mm long x 103.6 mm wide x 28 mm deep
Thermostat, UWP mounting system, Installation (J-box) adaptor, Small decorative cover plate, screws and anchors, Installation Guide, and User Guide
Item Type
UWP Mounting System
Electrical Ratings
20 to 30 Vac
Up to 3 Heat/2 Cool Heat Pumps; Up to 2 Heat/2 Cool Conventional Systems
Electrical Connections
Honeywell UWP Mounting System
Operating Humidity Range (% RH)
5 to 90% RH, non-condensing
Supply Voltage
20 to 30 Vac
Switch Positions (System)
Switch Positions (Fan)
Operating Temperature Range (F)
37 F to 102 F
Operating Temperature Range (C)
2.7 C to 39 C
Shipping and Storage Temperature Range (F)
- 20 F to 120 F
Shipping and Storage Temperature Range (C)
- 28.9 C to 48.9 C
Network Communications
Wi - Fi
LED Back Light
Power Method
Accuracy (F)
1 F
Accuracy (C)
0.5 C
Differential Temperature (F)
± 1 F
Differential Temperature (C)
± 0.5 C
Interstage Differential Temperature (F)
1 to 1.5 F Multistage models only
Ambient Temperature Range (F)
32 F to 120 F
Ambient Temperature Range (C)
0 C to 50 C
Switch Type
7 day, 5-1-1 day, 5-2 day, 1 day, Geolocation or Non-programmable
Touch Screen
Display Size
6.89 sq. in.
Temperature Control Mode Selections
Ambient Air Temperature
Auto or Manual
Setting Temperature Range (F)
Heat: 40 F to 90 F; Cool 50 F to 99F
Setting Temperature Range (C)
Heat: 4.5 C to 32.0 C; Cool: 10 C to 37.0 C
Heat Current
0.02-1.0 A
Fan Current
0.02-.05 A
External Sensors Available
Optional: Outdoor -- C7089U1006, Remote Indoor — C7189U1005

Marketing Collateral

Sales/Promotional Materials-Introducing The New Standard for Simple (T Series) sell sheet

Sales/Promotional Materials-Introducing The New Standard for Simple Connectvity (T Series) sell sheet

Sales/Promotional Materials-The Honeywell T Series (tri-fold) brochure

Sales/Promotional Materials-TheHoneywell T Series (tri-fold) french brochure

Sales/Promotional Materials-Honeyowell T Series - Introducing the New Standard for Simple Connectivity (french) sell sheet

Owners Manual

Operator/Owner Materials-Getting Started Guide for Lyric™ T6 Pro Wi-Fi Programmable Thermostat (English, French, Spanish)

Operator/Owner Materials-User Guide for Lyric™ T6 Pro (TH6320WF, TH6220WF) WiFi Programmable Thermostat (English, French, Spanish)

Technical Documents

Installation Materials-Addendum for T6 PRO Wiring Diagrams (English)

Product Data and Specifications-Submittal Sheet for T6 Pro Series Wi-Fi Programmable Thermostat

Installation Materials-Addendum for Honeywell Easy Ventilation Wiring (English)

Installation Materials-Guide d'installation professionnelle - Thermostat programmable Lyric™ T6 Pro Wi-Fi (French)

Installation Materials-Professional Install Guide for Lyric T6 Pro Wi-Fi Programmable Thermostat (English)

Installation Materials-Guía de instalación profesional - Termostato programable Lyric™ T6 Pro con conexión WiFi (Spanish)

Product Data and Specifications-Submittal sheet for Lyric Pro T6 Series Wi-Fi Thermostat (English)

Installation Materials-Installation Instructions for T Series (TH6320WF, TH6220WF, TH6320U, TH6220U, TH6210U, TH4110U, TH1110D, TH1010D) Thermostat Gu



Remote Outdoor Sensor


Remote Indoor Sensor


Coverplate assembly for use with the Lyric T6 Pro, T6 Pro, T4 Pro, and T1 Pro thermostats


Large univ. thermostat guard Clear cover


Large univ. thermostat guard Beige cover


Wire Saver C-Wire Adapter to use with Wi-Fi Thermostats or RedLINK 8000 series models