Should I go up to 2 1/2, My condo is about 900 square feet and I'm in the middle floor of a three story building. Refrigeration line is about 40feet.
It would probably lock out in heat mode.
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How many times must one fix something before it is fixed?
Last question. Would it help at all to run the 3/8 where it can be put, leaving about 10 feet of 5/16 since diameter seems to have a dependence on length of run.
Might, might not.