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TH6320ZW2003/U - Resideo Honeywell Home T6 Pro Z-Wave Plus Smart Thermostat

TH6320ZW2003/U - Resideo Honeywell Home T6 Pro Z-Wave Plus Smart Thermostat
TH6320ZW2003/U - Resideo Honeywell Home T6 Pro Z-Wave Plus Smart Thermostat
Item# TH6320ZW2003

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List Price: $299.98
Your Price: $199.99
Availability: In Stock
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Honeywell TH6320ZW2003/U Product Description:


The Honeywell Home TH6320ZW2003/U T6 Pro Z-Wave Plus Smart Thermostat is capable of controlling up to three heat and two cool stages of heat pump, (including dual fuel heat pump systems) and up to two heat and two cool stages of conventional system (3H/2C HP, 2H/2C Conv.) It also measures, displays and reports % indoor relative humidity; however, this model does not control humidification equipment.

The Honeywell TH6320ZW2003 is programmable thermostat that is most commonly used with Honeywell Lyric Controller and ProSeries alarm control panels. With this programming thermostat you can control your temperature from anywhere using your Android, BlackBerry or iPhone device. It is one of the easiest smart thermostats to install and is controllable by all Z-Wave compliant controllers that have the control capability for "Thermostat" devices. When integrated with the app that controls your Z-Wave controller, it lets you program and control your home's HVAC system as well as controlling other Z-Wave devices connected to the same Z-Wave controller.

Because the thermostat is battery-powered, low-voltage integrators can easily connect the thermostat to most HVAC systems. Optional 24 VAC powering via "C" or common wire is also available, if desired.

Product Includes:

  • T6 PRO Z-Wave 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
  • 3 AA batteries
  • Professional Install Guide
  • Getting Started Guide


Please Note: For installation of the Honeywell T6 Pro smart thermostat, you should have knowledge of your high-voltage HVAC system. If not, we recommend you hire an HVAC technician to install on your behalf due to the risk of injury to a non-professional. GeoArm will not troubleshoot wiring and power issues without an HVAC Technician present.

Honeywell TH6320ZW2003/U Product Specifications:


  • Dimensions: 4.09" H x 4.09" W x 1.06" D
  • Heat Temperature Range: 40°F to 90°F (4.5°C to 32°C)
  • Cool Temperature Range: 50°F to 99°F (10°C to 37°C)
  • Operating Ambient Temperature Range: 37°F to 102°F (2.78°C to 38.89°C)
  • Operating Relative Humidity: 5&per; to 90&per; (non-condensing)
  • Temperature Sensor Accuracy: Thermostat ±1.5°F (0.85°C at 21.0°C)
  • Regulations: FCC § 15.19 (a)(3), IC RSS-GEN, FCC Warning (Part 15.21) (USA only), FCC - 47 CFR § 15.105 (b)
  • Warranty: 5-year limited
  • Z-Wave Radio:
    Frequency (USA and Canada): 908.42 MHz
    Certified: Z-Wave Plus
    Generic Device Type: Thermostat
    Node type (C-wire): Always On Slave (AOS)
    Node type (Battery): Listening Sleeping Slave (LSS)
    Z-Wave Chipset: ZM5202AU
  • Supported Z-Wave Command Classes:
    Z-Wave Plus Info V2
    Supervision V1
    Transport Service V2
    Association V2
    Version V2
    Association Group Information V2
    Basic V1
    Battery V1
    Clock V1
    Configuration V4
    Device Reset Local V1
    Manufacturer Specific V2
    Sensor Multilevel V5
    Notification V3
    Powerlevel V1
    Security 2 V1
    Thermostat Fan Mode V3
    Thermostat Fan State V1
    Thermostat Mode V3
    Thermostat Operating State V1
    Thermostat Setpoint V2

Honeywell TH6320ZW2003/U Product Compatibility:


• Compatible with Honeywell Lyric Controller and ProSeries alarm control panels
• Designed for battery operation (3 x AA batteries) or for 24 VAC power operation (via a "C" or common wire)
• Compatible with most single and multi-stage conventional and heat pump systems
• Designed to work with any Z-Wave compliant controller or gateway; however, a security enabled Z-Wave Plus Controller is recommended to fully utilize all thermostat features
• Works with millivolt systems
• Does not work with electric baseboard heat (120-240V)

Product Reviews

Other customers rated this item:
5 out of 5 stars
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  Great buy,
Posted By:

Easy to install and the instructions were clear and careful about wiring correctly. Has worked without issue for 2 weeks now. The advanced function settings are appreciated also.



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  Great thermostat with beautiful display, smart features, and outside temp. But, difficult to instal,
Posted By:

This smart thermostat is a great way to modernize your HVAC system. With its modern features, app control, weather report, and much more, this is a great choice to consider. The quality of the main unit is very nice with a great display; I?d put it in the upper-middle level. I would guess it should last, but it?s hard to tell how the electronics will hold up. Overall, this is a great thermostat that?ll help you get the most control and enjoyment out of you HVAC system and look great while doing it. I?ll be sure to update this review, if I ever start to have problems.

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  So easy to use and looks great, too!,
Posted By:

Great little thermostat. Amazed to have all of these features at this cost. Love this product and so convenient to control the temp with my phone. It's a great product.

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  Excellent Thermostat,
Posted By:

This is an excellent thermostat. I bought this one for our master bedroom because I purchased another T9 a couple of years ago and it has worked flawlessly. I love being able to control it with my phone's Android app; it looks great on the wall - simple and functional. The hardware installation was very simple and connecting it to my home WiFi was also very easy. It's a great thermostat for the price.



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  Works well,
Posted By:

The thermostat works perfectly! I had some trouble setting it up. I would recommend hiring a professional if you have limited knowledge of HVAC systems. I recommend this product for the easy control it gives.



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  Overall good unit, good price,
Posted By:

The installation process was easy for me as I had a similar unit just not smart and WiFi capable. So it was plug-and-play. App installation was somewhat long and not very intuitive. Overall happy with it, you can set a range for your temperature (low and high) however if you have it in heat mode and it goes above the high temp it won?t automatically switch to cool mode to keep you in your range. And vice versa. Overall it does the job for a good price.


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  Wonderful thermostat,
Posted By:

I was happy with my first purchase of the Honeywell WI-Fi thermostat and I bought a second one as a gift to a friend who installed mine. I can?t say enough about how pleased we are with this product.

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  Works awesome. Seamless integration to Zwave network,
Posted By:

This has all the features that you would need in a zwave thermostat. pairing is very easy and the connection is solid. It has auto mode as well but needs to be enabled but going to menu 300 in settings.

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  Looks nice and works great,
Posted By:

Thermostat works extremely well. I get monthly emails with the previous months energy usage, really nice feature. It works like a charm.



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  Very Nice Quality,
Posted By:

Excellent product within 2 weeks it had learned the heating of the house and is maintaining a flat energy line. Overall it's a beautiful thermostat that's extremely easy to swap with other smart thermostats.





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  Great peace of mind and easy setup. ,
Posted By:

We?ve been using this for about a month and I really appreciate the inexpensive option for keeping track of temp and humidity. It really works well and has been very helpful.



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  This thing is super cool,
Posted By:
2 people found this review helpful

Very, very pleased with this thermostat. It worked perfectly. Setting it up to work over wifi was a bit of a hassle, but I called the support line and spoked to a guy who got me all sorted in about ten minutes. Thumbs up

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  We can check temp & increase or decrease from phone.,
Posted By:

I was also very easily able to get them setup with the app as well as connect them to Alexa so we can control them with voice commands. I would highly recommend them, they are a great product and a good deal.

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  Great z-wave thermostat,
Posted By:
3 people found this review helpful

Works great with my home assistant setup. Temperature reporting is very accurate and supports external sensors. easy to connect to z-wave of my alarm system. Strongly recommend this product.

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