Quote:
Originally Posted by delima2000
My mistake the piping is going down to the floor. The wiring was coming out of the attic. Like I said we didn't stay and watch them the whole time.
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I guess you are not sure if they installed new line set. I would call them and ask. If they used the old one again they will tell you they treated and cleaned the oil residue from the old system. Your old system used a different type of compressor oil and refrigerant than your new one. If your old unit had compressor fail it also produces acid from the cooked oil. Ask them if they reinsulated your suction line...if the insulation is old and in poor condition you will have high superheat. Proper superheat protects the compressor, the heart of an AC system. Any HVAC contractor who tells you your 10 to 20 year old line set is ok to use again IMO should not be considered