Since Samsung Plugin doesn't work I decided to write custom Samsung Air Conditioner VD.
Local PHP server (NAS, RPI, ...)
Copy smarthome folder to your php server
Edit/rename Bedroom.php, Living room.php files. For each device you need separate file. In each file:
enter IP of your AC device
enter token of your AC device
To get token follow steps 3.1 - 3.5 from this site.
Check if your PHP server is working: http://192.168.0.10/smarthome/samsung-ac/Bedroom.php
Of course change 192.168.0.10 with the IP of your PHP server.
You should see JSON result with status. Something like this:
Install Air Conditioner VD
Edit Air Conditioner VD:
Room name must be the same as your PHP file name without .php extension, e.g. Bedroom
Enter Address IP of your PHP server, e.g. 192.168.0.10
Port number of your PHP server, usually 80
Add VD icons and enter icons ID at "refresh" button section: