IE3: Indoor Environment & Energy Efficiency - Page 3 of 116 - Business Intelligence for Professional Contractors
July 2017 Tech Challenge

A freezer utilizing R-402A with a TXV metering device (and receiver) has a customer complaint of “warm case.” The symptoms at the store confirm that the case that normally operates about 0 degrees is 34 degrees and the condensing unit is running continuously. What are the “possible causes” (note: there
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