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- posted
11 years ago
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Sub-Zero had started to manufacture these based on R-12 refrigerant, so you have to verify the serial number to know the actual type of refrigerant needed. According to Sub-Zero tech bulletin for the 500 Series  it goes like this:
<strong>Charge R-12 refrigerant</strong>Prior to serial #M/P681166:Â
10.0oz refrigerator, 14.0oz freezerfrom #M/P681166 to # M/P964070 and from #M/P964496 to #M/P1004775:
7.0oz refrigerator, 8.0oz freezerfrom #M/P964070 to #M/P964496, from #M/P1004775 to #M/P1184141 and from #M/P1184239 to #M1204990/P1214590:
8.0oz refrigerator, 11.0oz freezer <strong>Charge R-134a refrigerant</strong>From serial #M/P1184140 to #M/P1184239:Â
10.0oz refrigerator, 9.5oz freezerStarting with #M1204990/P1214590 :
8.0oz refrigerator, 6.0oz freezerHomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.