Here is how to remove the buzzer/beep noise from pretty much any mini split ceiling cassette (this one is a Senville) if there is no remote controller option/ is not built into
Senville SENA-18IC-Z 18000 BTU Ductless Ceiling Air Conditioner and Heat Pump : Amazon.ca: Home
Senville SENA-18IC-Z 18000 BTU Ductless Ceiling Air Conditioner and Heat Pump : Amazon.ca: Home
Best Ceiling Cassette Air Conditioner Reviews in 2023 - ElectronicsHub
Senville SENA-12IC-Z 12000 BTU Ductless Ceiling Air Conditioner and Heat Pump : Amazon.ca: Home
4 Best Cassette Ceiling Air Conditioners In 2023 (+ Specs) - LearnMetrics