Honeywell T9 and T10 series thermostat control interface for Crestron Home

Honeywell/Resideo Thermostat Driver for Crestron Home™

Price range: $300.00 through $440.00

Manage your Honeywell T-Series thermostats with precision through the Honeywell/Resideo Crestron Home Driver. This cloud-based integration grants you full control over setpoints, system modes, and fan settings for T5, T6, T9, and T10 models. Deliver a seamless climate experience by connecting your Honeywell Home account directly to the Crestron Home ecosystem.

Important Note: This driver will not control thermostats imported from the older TCC app. Honeywell/Resideo has removed support for controlling those thermostats from their Honeywell Home API until further notice. You can use our Honeywell TCC driver to control those thermostats.

Please make sure to read below the full description of the driver before purchasing.

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Description

WARNING: Honeywell/Resideo has restricted the creation of developer accounts, which now require an approval process. A developer account (per project) is required to use this driver. We have heard, anecdotally, that this process may take 4 or more months. This restriction is from Honeywell/Resideo and we have no control over this restriction. You can try to contact Honeywell/Resideo at developerinfo@resideo.com or try their Pro support line at 800-468-1502 to try to inquire about account status.

The Honeywell/Resideo Thermostat Driver bridges the gap between Honeywell’s T-Series hardware and your Crestron Home system. This driver utilizes the modern Honeywell Home API to provide real-time management of system modes, fan speeds, and temperature setpoints, bringing high-end climate control to any smart home project.

CRITICAL COMPATIBILITY NOTE

This driver only controls thermostats paired with the newer Honeywell Home app (T-Series). It does not support thermostats managed via the older Honeywell TCC app. Honeywell/Resideo recently removed TCC support from their modern API. If your installation utilizes the TCC app, please use our dedicated Honeywell TCC Driver instead.

Core Integration Features:

  • Total Mode Management: Switch between Off, Cool, Heat, and Auto modes effortlessly.

  • Fan Control: Access specialized modes, including Auto, On, and Circulate.

  • Setpoints & Scheduling: Adjust heating and cooling targets and toggle between ‘Run Schedule’ or ‘Permanent Hold’ states.

  • Interface Visibility: Display your thermostats directly on the Crestron Home screen for instant user access.

Technical Requirements & Polling:

  • Active Internet Required: As a cloud-based solution, the Crestron Home processor requires a persistent internet connection to communicate with the Honeywell servers.

  • Developer Account: You must register a free Honeywell developer account to access the API and complete the setup.

  • Polling Interval: The driver polls Honeywell’s servers approximately every 5 minutes to receive feedback, following specific restrictions set by Honeywell/Resideo.

Ready to integrate? Download our 2-hour trial license to verify the cloud connection on-site before you purchase.

 

Note: Due to the nature of this product, any and all sales are final, and NO refund will be issued. It is highly recommended and encouraged to use the built-in trial license to test the driver with your hardware setup before purchasing a full license. The trial period is 2 hours and can be extended another 2 hours by rebooting the processor.

Before calling, review the Driver help file and FAQ section for the Driver as our support is limited to questions about configuration and setup only. Any hardware configuration mentioned in the driver manual are the responsibility of the integrator. If you have hardware-related questions, such as wiring or addressing, we advise reaching out directly to the manufacturer for assistance. Additional support, beyond driver configuration, requires the purchase of service hours before guidance will be provided.

We reserve the right to make changes to this policy without notice.

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Generate Honeywell Authorization Code

Please enter the Consumer Key you previously get from your Honeywell developer account.

Please enter the Consumer Key GET CODE

After getting the authorization code, please refer to the user manual to continue with the configuration steps.

Additional information

License

Honeywell/Resideo + 1 hour of live support, Honeywell/Resideo – Driver Only (email support only), Coupon – Driver Only

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Downloads

da_hvac_honeywell_rest_ip - Manual

  • It is recommended that you save a configuration or golden configuration before installing any driver.

  • Each developer account is limited to a certain number of access to Honeywell Home’s API every month. To get around this problem, we require that you create and use your own developer account.

  • Not necessarily, when you first install the driver and enter the authorization code, if it’s successful, it will create a config file on the processor. This config file will remain on the processor unless you manually remove it. When you install a new version of the driver, leave the authorization code empty and it will automatically pick up the file and use the information in their to make its request. It is important that the instance number matches the previous driver.

  • The problem is Honeywell doesn’t let you authorize any thermostats that have been paired with the TCC app for third party control via the Honeywell Home API. Until Honeywell allows the authorization, TCC thermostats remain unsupported by this driver. Please use our Honeywell TCC driver to control those thermostats.

    • Make sure the processor has access to the internet.
    • Make sure you copied the entire authorization code correctly and did not leave out any characters.
    • Make sure you are not re-using the authorization code. Once an authorization code has been used, it can not be used again.
    • Make sure you use the authorization code within 1 minute of generating it. It has a very short expiration time (aprox. less than 1 minute).
    • Make sure you are using the proper case when specifying the location name. (case-sensitive).
    • Make sure that when you defined the app in the http://developer.honeywell.com website, you specified the return url/uri as None and not none (case sensitive).
    • Wait at least 60 seconds. Sometimes, especially when there is a large number of thermostats, it can take longer for the cloud service to provide the driver all the thermostat information and the driver may take additional time to process it in order to create the folder.

  • The concept of the instance number is the same as how it’s used in the Crestron SIMPL HVAC Scheduler module. The instance number is used to create a unique filename on the processor so that it stores the token information needed to make requests. In normal circumstances you can leave it as one. You would need to change the instance number if the thermostats were paired to separate user accounts and you wanted to provide them access to thermostats from both accounts. An example of this is if the main house thermostats are paired to one user account and the guest house thermostats are paired to a separate user account. If you want thermostats from both properties to show up, you would need to add 2 instances of the platform driver, and each instance would need a unique instance number to work properly.

  • Unfortunately yes, if you add thermostats, you have to go through this process again. This is a security feature from Honeywell. The authorization only allows you access to the thermostats that have been allowed. Since the newly added thermostats were not allowed, the driver can’t get access to it. The process is similar to updating the driver. First make sure you check the option to delete the configuration file in the drivers Installer Setup option. Then uninstall the driver. If you don’t check the option to delete the configuration file, it will just pick up the old (now stale) authorization data and the new thermostat won’t show up. It’s recommended that you wait until all the thermostats have been installed before going through the process of getting them to work with this driver.

  • When you are getting the authorization code, you have to select the thermostats per location and the location name itself. In the image below you can see 2 locations: Main House and Guest House. In this case you should use 2 driver instances for each location.

  • Unfortunately you need to uninstall the driver, taking care to make sure you check the option to the Delete the Configuration in the “Installer Settings” in the main platform driver. Than install the driver again using a new authorization code. The reason for this is a security feature on the manufacturer’s side. The existing authorization is paired with a specific set of devices and can not be updated dynamically. The only option is to generate a new authorization code that is paired with an updated list of devices. A word of warning, this will also delete all the quick actions associated with this driver.

  • To get the authorization code, use this URL for First Alert:


    https://api.honeywell.com/oauth2/authorize?response_type=code&client_id=yourapikeyhere&redirect_uri=None&subSystemId=5

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