Dear all,

I am sure that this thread is very basic for the HC experts but since I have no experience in this field, I would like to start this thread for myself and others who are like me .

As HCs are growing in our industry therefore, I think it is something we need to learn.

Can anyone explain :

1- Major difference with DX system with HCFC,...
2- Design differences
3- Equipment differences
4- Safety issues

And anything you think a beginner must know.

Again forgive me if this is very simple for you guys.

Appreciate your help.
Cheers