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Performance and reliability degradation of a residential unitary air conditioning system resulting from a mismatch of a 1992 air conditioning unit with a 15-20 year old evaporator.

Author(s) : HEFLIN C., KELLER F.

Summary

This investigation assessed the detrimental affects that could occur when a 1992 vintage 10 SEER (seasonal energy efficiency ratio) air conditioner imposed by the US National Appliance Energy Conservation Act is used to replace a 15-20 year old outdoor unit without replacing the indoor evaporator section. An evaporator constructed with similar geometry as a 15 year old evaporator was tested with a typical 1992, 10 SEER residential air conditioner. The performance of the 1992 outdoor unit with the old evaporator experienced 5% degradation in capacity and 11% degradation in SEER. The system also operated at compression ratios typically 20% higher thus reducing the life of the compressor.

Details

  • Original title: Performance and reliability degradation of a residential unitary air conditioning system resulting from a mismatch of a 1992 air conditioning unit with a 15-20 year old evaporator.
  • Record ID : 1993-0373
  • Languages: English
  • Publication date: 1992/07/14
  • Source: Source: Proc. 1992 int. Refrig. Conf., Energy Effic. New Refrig., Purdue Univ.
    vol. 1; 83-92; 4 fig.; 6 tabl.; 4 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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