HVAC: Two same model r404a slush machines. one has a charge port on the low pressure line, one does not. What is the port on the top used for? How do I top off the charge on the one with other the low pressure port?

Friday, March 12, 2021

Two same model r404a slush machines. one has a charge port on the low pressure line, one does not. What is the port on the top used for? How do I top off the charge on the one with other the low pressure port?

Two same model r404a slush machines. one has a charge port on the low pressure line, one does not. What is the port on the top used for? How do I top off the charge on the one with other the low pressure port?

submitted by /u/adasho_bitrex
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