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Serviceability issues asociated with R407C refrigerant.

Author(s) : STANBOULY S., WESOLOWSKI A.

Summary

Many investigators have indicated that R407C is a drop-in R22 replacement. Engineering testing have shown that R407C is not practically a simple drop-in refrigerant. System performance has dropped by 3 to 4% in capacity and up to 5% in efficiency. Additional testing was conducted to simulate slow leak (isothermal leak) from the system up to 50% of the nominal charge at the suction, discharge and liquid lines, and after expansion device. When the leak simulation was completed the system was recharged with the nominal composition of R407C. Laboratory test results showed that the composition of R407C changed especially during the first two leak simulations and were dependent on the location of the leak. Performance degradation of the system during the standard operation as well as during the leak simulation suggest that R407C is not a practically drop-in R22 replacement.

Details

  • Original title: Serviceability issues asociated with R407C refrigerant.
  • Record ID : 1997-0075
  • Languages: English
  • Source: Proceedings of the 1996 Purdue International Refrigeration Conference.
  • Publication date: 1996/07/23
  • Document available for consultation in the library of the IIR headquarters only.

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