Most of our indoor units can be ran without the remote control. Below are a few options of what to look for.
With this button the system can be put into an auto mode (by pushing it for 2-4 seconds), where the system will run at 23 degrees. Therefore if it is hotter than 23 the system will cool, if it is colder than 23 the system will heat. The system can also be put into a forced cool operation (by pushing it for 10 seconds or more). By doing this the system will run on full cooling no matter how cold it is in the room. The system can also be turned off with the same button.