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2:03
YouTube
AC Service Tech LLC
Refrigerant Charging! Checking the R-22 Refrigerant Charge on AC Condensor! Subcooling Method!
This is how to check a refrigerant charge using the subcooling method of charging. This is for comfort cooling systems when residential and commercial systems have a thermostatic expansion valve. The outdoor unit will have the required subcooling rating desired on the rating plate and as long as you are within + or - 3 degrees then the charge ...
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