LENNOX M4 Core Unit Controller Instruction Manual

: June 13, 2024
: Lennox

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LENNOX M4 Core Unit Controller Instruction Manual
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LENNOX M4 Core Unit Controller Instruction Manual

©2023 Lennox Industries Inc.
Dallas, Texas, USA

LENNOX® CORE UNIT CONTROLLER (M4)

CONTROLS
508268-01 09/2023
Supersedes 01/2022

INSTALLATION INSTRUCTIONS FOR CORE UNIT CONTROLLER (M4) FIRMWARE UPDATE

IMPORTANT

Improper installation, adjustment, alteration, service or maintenance can cause personal injury, loss of life, or damage to property.

Installation and service must be performed by a licensed professional installer (or equivalent) or a service agency.

Overview

Firmware updating is available using the M4 Unit Controller USB port. Use the following procedures to update the M4 Unit controller firmware.

CONFIRMING CURRENT M4 UNIT CONTROLLER FIRMWARE VERSION

Launch the Lennox CORE Service App and pair your mobile device to the Lennox CORE Control System.
Navigate to MENU > RTU MENU > DATA > FACTORY> SOFTWARE VERSION. The current firmware version is listed at the top of the screen.
Scan the QR Code or visit https://www.lennoxcommercial.com/Resources/Software/ to locate the latest firmware version.
The operating firmware version MUST match the version posted on the site.
Follow the installation instructions to update the firmware version (if necessary).

Preparing USB Flash Drive

USB flash drive media must be formatted using the FAT32 file system
USB flash drive with a maximum of 32GB capacity is recommended

FILES NEEDED FOR UPDATE

File needed to upgrade M4 unit controller from USB fl ash drive: COREXXXXXXXX.C1F

NOTE: Recommend all uppercase, but not mandatory.
NOTE: The xxxxxxxx are place holders for major and minor versions and build number information in the actual fi le name, and varies from one version to the next.

CREATING FOLDER

Create a folder on the root of the USB fl ash drive called “Firmware”.
Create a sub-folder under the “Firmware” folder called “M4”.
Place a copy of the COREXXXXXXXX.C1F file into the sub-folder labeled “M4”.

Updating Firmware

Insert the USB flash drive into the CORE Unit Controller USB port.
Use the CORE Service app to update the firmware. Navigate to MENU > RTU MENU > SERVICE > FIRMWARE UPDATE and select Upgrade from USB option.

The firmware version on the USB fl ash drive displays.

Select the updated firmware and press Install.

NOTE: A firmware upgrade will take 10 to 15 minutes.
The next screen displays the firmware update status.

A confirmation screen displays, after the update is complete. The system will reboot.

Repeat steps 1 and 2 to verify the firmware has been updated after the unit controller has rebooted and the CORE Service app has reconnected.

NOTE: Firmware information is also listed on the unit controller’s seven segment display during boot-up. The firmware is listed in the following order:

Major
Minor
Build

NOTE: Firmware updates do not alter the unit controller configuration settings. All settings will be retained after the firmware has been updated.

Saving and Loading System Profile

SAVING SYSTEM PROFILE

This functionality saves a “profile” on the controller. What that means is that It sets a restore point on the controller that the controller can be returned to in case the controller is configure incorrectly, loses configuration, etc. This profile is created from the parameters already saved on the controller.

Because of that, there is no need to source a file from the USB, mobile app, etc. Instead, the user just clicks save, and the controller saves the appropriate parameters internally.

Insert a compatible USB storage device.
On the CORE service app, go to RTU MENU > REPORT and select SYSTEM PROFILE.
Type a unique name for the profile in the PROFILE NAME field
Choose SAVE under either MOBILE or USB depending on the device you would like to use.
If MOBILE is selected, your device will prompt you to choose a location.

NOTE: If the CORE Service App indicates the unit controller was unable to read the USB storage device, remove and reinsert USB storage device and attempt to save the profile again.

LOADING SYSTEM PROFILE

Insert the USB storage device that contains the current saved System profile, or continue if you have a system profile saved on your mobile device.
Go to SERVICE > REPORT.
Choose LOAD under mobile or USB, depending on where your system profile is saved.
NOTE: The CORE Service app may indicate either the unit controller was unable to read the USB storage device or it is missing. Remove and reinsert USB storage device and attempt to load the System Profile again. If the issue continues, all data will have to be entered manually.
Select the desired System Profile by using the CORE service app. If loading a system profile from USB, select NEXT to continue. If the process was completed successfully, the app will indicate “System Profile Loaded.”