Does the line set length need to exactly match the pre-charged length?

The refrigerant charge listed in the specifications refers to the amount of charge that already exists in the outdoor condenser. You are able to run line sets that are shorter than or longer than the listed refrigerant charge. If you are running a line set longer than the existing refrigerant charge it just means that your installer will need to add in some additional refrigerant. If you have any further questions please feel free to give us a call! Thanks.