He could indeed be telling the truth. Everyone has thier own method of doing stuff (some right, some wrong).
Personally any time the system is open, especially for a major repair like that I'll cut the old drier out and replace it with a high acid filter drier (it's job it to get rid of the acid). If the system had MAJOR acid issue's I'd flush the system, then put in the above filter drier.
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i look at it like this. suppose you got an injection of a caustic chemical into your blood stream and you began feeling pretty crummy. the doc at the er told you if you continue like this you would be dead real soon. so you call in two specialists. one tells you he is going to inject you with another chemical that will counteract the deadly chemical in your system. of course hes not sure exactly how much bad chemical is in you body so hes not exactly sure how much good chemical to inject to offset it. but hes happy to guess and do it and you'll be just fine. Doctor number two comes in and says hes going to run all your blood through a machine that filters and puifies it and after a few days all the bad chemicals that can be extracted will be in the machine and not your body , he will then disconnect the machine and you will be back to normal, which would you choose. i would choose doc number two. the in line high acid filter drier on the liquid line and the suction line. then replace the liquid lline filter and delete the suction line filter in about a week. be sure he wires the system to run only in cool or heat till driers replaced. More time , more labor, more effort , more thought. and a second trip, But that is the way a pro does it.
i would choose doc number two. the in line high acid filter drier on the liquid line and the suction line. then replace the liquid lline filter and delete the suction line filter in about a week. be sure he wires the system to run only in cool or heat till driers replaced. More time , more labor, more effort , more thought. and a second trip, But that is the way a pro does it.
So you disable defrost on the heat pump in winter time?
I think if you talked to a kidney dialisis patient, you'd find near 100% would prefer a shot 3 times a week to the blood cleaning.
I've used acid-away in semis, but I still had to change the oil sometimes 3, sometimes 4-5 times if severe. not sure if it really works, but it's fun to use There is a thumbnail formula for it, if system has less than one gallon oil, and if moderate burnout, then use X.
or if one gallon, and severe then 2X. etc. I've never had further service issues with hermetics or semis that I've replaced regarding further burnout when I used acidaway ....YET!
the thumbnail rule applies to compressors in this size range (residential) too.
no you wire it to run only in heat then tell customer to stay warm using only aux heat which is heavy enough to get them buy cause a professional put it in and sized wire accordingly so the heat strip was heavy enough to offset the ac in defrost and consequently it is now heavy enough to keep them warm till pump can be put back on line.with temps above 40 degrees it shouldn't try to defrost and if it gets below 40 have them run only emerg heat
Its takes some repiping, but a suction filter drier between the accumilator and the compressor works better on a clean up.
And doesn't cause the home owner alot of inconvience, or raise their electric bill.