Samsung Heat Pump Integration into Smart Home via SmartThings Commands

Hi,

I have a Samsung Heat Pump and it is successful integrated into SmartThings App. In the app it has two power buttons. One for water and one for heating. Both buttons can be used separately to turn eG water or heating on and off.

I have also a developer account and managed to use commands through FHEM to send commands to my heat pump. I can use the command switch on or off and it works, but it switches the heat pump totally on or off. I cannot control water or heating.

In the SmartThings documentation I only see the command main switch on or off.

Is there another command for my heating pump or is there a documentation available where I can see all commands?

Many thanks
Markus