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Honeywell TH6320WF2003 Lyric T6 Pro WiFi Programmable Thermostat 3H/2C 2H/2C

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 Product Description

Honeywell TH6320WF2003 - Lyric T6 Pro WiFi Programmable Thermostat, 3 Heat/2 Cool Heat Pump or 2 Heat/2 Cool Conventional

The TH6320WF2003 features 7 day programmability for your convenience. It offers 7 day, 5-1-1 day, 5-2 day and even single day programming as well as Geo-location and non-program. It will work with a conventional 2-stage heating and cooling system as well as a 3-stage heat / 2-stage cool with heat pump system.


The Honeywell T Series is a line of thermostats that are easily interchangeable as your comfort control needs change over the years. They all feature a hinged wall plate with wire terminals that allow the wires to easily push in. This mounting system is known as UWP mounting. Once the mounting box is installed, the cover simply snaps off allowing you to easily upgrade to a different T6 model. For example, maybe you upgraded your heating/cooling system to include an additional "stage". Perfect - the wires for the new thermostat will push right into the UWP box mounted on your wall - no need to rewire or repaint!


The display is large and easy to read. It features an LED Backlit, 6.89 sq. in. screen and a touchscreen. The entire unit is 4 1/16" x 4 1/16" and only 1 3/32" deep. Everything you need for installation is in the box.


The T6 will work with several types of comfort systems. It can be used for up to 3 stages heat / 2 cool heat pump system or up to 2-stage heat / 2-stage cool systems. It can be used with 24VAC systems - gas, oil, electric warm air; hot water coil, gas, oil, electric hydronic; or steam/gravity systems.



  • Wi-Fi touchscreen - Wi-Fi Connected version uses Lyric Platform application for smart devices

  • Dual Fuel & ventilation control

  • Flexible scheduling or geofence technology

  • Geofencing, 7-day, 5-2, 5-1-1 or non-programmable

  • 6.89 sq. in Touchscreen Display

  • Power Method: C-Wire Only

  • Stages: 3H/2C Heat Pump + 2H/2C Conventional

  • Terminal Designations: RC, R, C, W, W2 - AUX, Y, Y2, O/B, G, K, E, U, U, L/A, S, S


Package Includes:

  • Lyric T6 PRO Wi-Fi Thermostat

  • UWP Mounting System

  • Honeywell Standard Installation Adapter (J-box adapter)

  • Honeywell Decorative Cover Plate – Small; size 4-49/64 in = 121mm.

  • Screws and anchors

  • Professional Install Guide

  • Getting Started Guide

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

Includes   Thermostat, UWP mounting system, Installation (J-box) adaptor, Small decorative cover plate, screws and anchors, Installation Guide, and User Guide

Item Type   Product

Mounting   UWP Mounting System

Electrical Ratings   20 to 30 Vac

Stages   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)   HEAT-OFF-COOL-AUTO-EM.HEAT


Operating Temperature Range (F)   37 F to 102 F

Operating Temperature Range (C)   2.7 C to 39 C

Network Communications   Wi - Fi

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   Relay

LEDs   LED Back Light

Programmability   7 day, 5-1-1 day, 5-2 day, 1 day, Geolocation or Non-programmable

Power Method   Hardwired

Terminal Designations   RC, R, C, W, W2 - AUX, Y, Y2, O/B, G, K, E, U, U, L/A, S, S

Display   Touch Screen

Display Size   6.89 sq. in.

Temperature Control Mode Selections   Ambient Air Temperature

Changeover   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

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