Not compatible
Spal PWM Blower not compatible
Spal PWM blowers require no internal pull-up and are used slightly differently. They are presently not compatible. Additional beta testing will be needed to see if support can be added.
Beta testing portal · ESP32-S3 UAC controller
Update, learn, and check known issues.
This page is for Undermount AC beta testers using the UAC controller. Use it to watch the beta update video, open the firmware updater, read the manual, and check known issues before sending field-test feedback.
Firmware update
Beta testers can update their controller using the browser-based ESP32 uploader. This should be opened in a supported desktop browser.
Known issues and suggestions
Check this list before sending feedback. If your issue is already listed, there is no need to report it again unless your symptoms are different or you are using a different firmware version.
Suggestion
Hot water button in cooling mode
Add a hot water button for heat box installs while in cooling mode. This would allow the heat valve to stay closed while still calling for hydronic hot water when needed.
Suggestion
Heated floors button and relay support
Add a heated floors button with support for an additional relay and control logic. This would allow hydronic floors to run by themselves or together with the blower/heater core, depending on the user’s selected setup.
Do not include tester names, email addresses, or private install details on this public list.
Send beta feedback
For this beta, feedback is handled by replying to the beta invite email. This keeps each tester tied to their original invite and avoids a public form or spreadsheet.
How to report an issue
Reply to your beta invite email with the details below. Please check the Known Issues section first so duplicate reports stay to a minimum.
SubjectKeep the original beta invite subject, or add a short issue title.
VersionInclude the firmware version and controller/display version if shown.
SetupBriefly describe your setup, battery voltage, and what mode you were using.
DetailsExplain what happened, what you expected, and whether it repeats.
Photos or short videos are helpful when the screen, wiring, or update process is involved.