anselmom
May 24, 2010, 07:43 AM
What will be the possible problem
hvac1000
May 24, 2010, 09:50 AM
It will be a problem if it says in the install manual that they are to small. Look in the install manual that came with the new unit. It has the correct answer. Also if these lines are being used over from a R=22 system they will need to be flushed OR you will have more problems.