RE: Refrigerant Volume
Refrigerant 134a is not a mix. It is a pure refrigerant like R12 and R22. The only time a refrigerant might be called a mix is when it is blended from more than one refrigerant such as R404a - a new high pressure refrigerant used in low temperature freezers. When you say large Adler Barbour, I assume it is their 12 volt system. Adler Barbour did take over the Crosby line of boat refrigeration for a while, those were much larger systems than their Cold Machine line. Adding ¾ of a pound of refrigerant to a Cold or Super Cold Machine indicates there is now two problems. The first problem would be that the system lost all its refrigerant and may now contain air and moisture. The second problem is the system now is overcharged and will not operate properly. Most of these small refrigeration systems hold from 3 to 5 ounces of refrigerant. Over-charging can be determined by frost on the return refrigerant line outside the refrigerated box and a higher current draw than normal. Because the original leak was not found and corrected, you will pay for another service call in the near future.
Refrigerant 134a is not a mix. It is a pure refrigerant like R12 and R22. The only time a refrigerant might be called a mix is when it is blended from more than one refrigerant such as R404a - a new high pressure refrigerant used in low temperature freezers. When you say large Adler Barbour, I assume it is their 12 volt system. Adler Barbour did take over the Crosby line of boat refrigeration for a while, those were much larger systems than their Cold Machine line. Adding ¾ of a pound of refrigerant to a Cold or Super Cold Machine indicates there is now two problems. The first problem would be that the system lost all its refrigerant and may now contain air and moisture. The second problem is the system now is overcharged and will not operate properly. Most of these small refrigeration systems hold from 3 to 5 ounces of refrigerant. Over-charging can be determined by frost on the return refrigerant line outside the refrigerated box and a higher current draw than normal. Because the original leak was not found and corrected, you will pay for another service call in the near future.
