2.4
28 reviews
10K+
Downloads
Content rating
Everyone
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About this app

This app is the interface for the Lennox® CORE Unit Controller in Model L (L*M), Enlight (L*T) and Xion (L*X) Commercial Rooftop Units. You must be within 25ft of a unit to connect and utilize this app.
The Lennox® CORE Control System reinvents the service process in the palm of your hand with a wireless mobile service app, making setup and service faster than ever before.
This app is intended for commercial HVAC service technicians to interface with CORE Unit Controller equipped unitary packaged rooftop units.
App Features:
- Guided Setup with progress indicators, detailed help, and exportable summaries drive simple and trouble-free setup, reducing commissioning times over similar systems.
- Enhanced Test Functionality provides real-time sensor readings, trending, and reports that enable easy troubleshooting.
- Ability to set and configure parameters of the CORE Control System drive tailored sequences of operation and make the CORE Unit Controller the most flexible Lennox has to offer.
Updated on
Sep 22, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

2.5
27 reviews
Nathaniel Williams
February 12, 2025
First time connecting to one of the new Lennox units and it connects right away. Switching to the next unit was also easy. In total, I connected to six separate units with out issues. During this time I closed the app multiple times and every time I tried to contact to a different unit it always did so.
1 person found this review helpful
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Victor Stimans
December 25, 2023
Downloaded app, used it for a startup, then it stopped working and I haven't been able to get it working since. Tech support was horrible. If you make equipment that REQUIRES software apps then they should work.
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Chade Gillham
November 30, 2023
App won't even open. It crashes the second I click it. Please fix it. 11/30/203- app hasn't worked since September. Fix your dog water app.
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What’s new

Bug fixes and App Improvements.

App support

Phone number
+18004536669
About the developer
Lennox International Inc
lennoxdevelopers@lennox.com
2140 Lake Park Blvd Richardson, TX 75080 United States
+1 972-497-5207

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