This article's point of view: The difference between manual air conditioners and automatic air conditioners is mainly different control methods. With exception of AC switch and air volume knob, other controls of manual air conditioners are mostly mechanical. , while all automatic air conditioners are controlled by A/C control module.
First of all, hot and cold air switching, internal and external circulation switching, blowing mode switching, etc. of manual air conditioner are controlled by handle control cable, which belongs to purely mechanical control. Only air conditioner switch and the air volume knob are electronically controlled, and it is just a traditional control switch, and there is no function similar to smart control.
Secondly, control of automatic air conditioner is fully controlled by electronic control module. It used to be also called an air conditioner booster, but now with advancement of technology, it has become more advanced. It can not only control air conditioning system alone, but also enter car's electronic control system, it is interconnected with other control modules. In addition to above-mentioned components that need to be controlled, machine can automatically turn on and off after setting temperature, and the main and second pilot zones can control temperature, air volume, mode, etc., which cannot be realized by manual air conditioning.
I hope my answer helps you.
The above is just my personal opinion, feel free to comment/subscribe/like/.