Greetings,

The manufacturer says:

Refrigerant piping - Liquid side diameter 6mm / 0.23 inch
Refrigerant piping - Liquid side length 4meters / 9.84feet
Refrigerant piping - Gas side diameter 12mm / 0.46inch
Refrigerant piping - Gas side length 4meters / 9.84feet

I may need to extend the tubing beyond 4 meters because the target location is a second floor.

Should I assume that the 6mm connectors and tubing are slightly different and therefore incompatible with 1/4" tubing and connections? Same with the 12mm and 1/2"?

Maybe I need to try and find some way to get the outside part up high on the wall within the length of the supplies tubing?

Thank you.