I am replacing a 10 seer 3ton a/c system with a 15 seer 3ton. The existing lineset is ~80ft, of which 30ft is inaccessible.
for full ratings, Goodman requires the use of 1 1/8" suction line, while the existing line set is only 3/4" x 3/8"
is it worth while to go ahead and replace the 50' run with 1 1/8" even though the middle 30' will still be 3/4" ?
customer states that condenser has already been replaced once after only five years. The existing condenser is dead after ~8yrs. I advised replacing complete line set, but cost will be prohibitive to customer (still probably less than replacing the condenser after 8yrs).
I can relocate the condenser to the south side of the house which will reduce the run by an additional 25 to 30 feet, however it will get a lot more heat on that side of the house.
any recommendations?