For whatever reason, you may learn you don't need as much line set as you have for your AC unit, so you want to cut the extra line. So, do you need to remove the refrigerant? Video Script: Today's question comes from Tony. "Hey Dan, I had to cut my line set to nine feet. Is the unit going to be okay as it is, or do I need to remove the refrigerant?" In this situation, Tony has a mini split and he's running a line set for it and he wants to know if he has to remove refrigerant from the pre-charged condenser since he had to cut his line down. When the manufacturer gets you a condenser, it's going to be charged for a certain amount of line length. The answer is sometimes, yes. You want the right amount of refrigerant. It's like the Goldilocks rule. Have more questions? Just ask them in the comments below or on Facebook or on Twitter.