Intuitive Rooftop Controller, made for Lennox Model L rooftop unitsFind a Contractor
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.
The Lennox® CORE Unit Controller empowers customers to choose their building controls, allowing simple or tailored operation.
The Lennox® CORE Control System uses built-in algorithms to deliver key performance indicators and drive unit components simply and reliably.
The Lennox® CORE Unit Controller optimizes unit operation in real-time by processing advanced sensor inputs, maximizing energy efficiency and space comfort
Download the latest version of firmware (09.00.0348) here.
To install this firmware, use a standard flash drive. Recommended Drive: FAT32 format, 2GB-32GB storage capacity. Place the firmware update in the following location: /Firmware/M4/. Plug the USB drive into the CORE Unit Controller. Pair the mobile app, and navigate to RTU > Menu > Firmware Update. The system should show the update and confirm to begin the update. The update should take approximately 15 minutes. You are not required to stay paired using your phone during the update. The unit controller will reboot after the update has completed.