Built-in diagnostics feature
The AHU contains a built-in diagnostic feature that enables you to obtain information on settings, faults,
and errors.
To view an air handler's diagnostics:
1.
Insert a USB stick into the controller, wait approximately 10 seconds, and then remove the USB
stick.
The controller generates a text file that contains all the settings and any faults or warnings that are
present on the unit.
2.
Insert the USB stick into any computer, and open the generated text file with “Wordpad” or a
similar program to view it.
The file name will be: “AHUxxxxx.TXT”, where “xxxxx” is the serial number of the controller.