I am trying to identify my AC model number and I am having a tough time doing it. Looking online, it does not seem to correspond with any standard Intertherm model convention that I can find. I am not even sure of its year.
Found this on the internet: CNS30B is a good Intertherm number - It appears to be a small AC unit generally for a mobile home. The age code is embedded in the serial number which I didn’t see in your picture.