The air conditioner should be controlled by the librarian. If the indoor temperature problem really needs to be opened to librarians, it is safe.

If you can't find the remote control, first look at what type of air conditioner it is, whether it is a central air conditioner or a cabinet, and then look at whether there is a power indicator light on the front of the machine. If you can't find the air conditioning control switch, turn it on, then look at the air conditioning control panel and press the ON key. If you need cooling and heating, press the mode key. If it's a ceiling sucker, look for the wire control first. Operation is the same as above. If not, you have to buy a universal remote control setting.