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IPLV (Integrated Part Load Value)

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IPLV is an abbreviation for Integrated Part Load Value. Like the EER, the IPLV rating was developed by the Air-Conditioning and Refrigeration Institute. (In 1998, the ARI released a revised Standard, ARI 550/590-98 to cover IPLV.) Unlike the EER, however, the IPLV measures the efficiency of air conditioners under a variety of conditions -- that is, when the unit is operating at 25%, 50%, 75% and 100% of capacity and at different temperatures.

IPLV is only calculated for non-residential central air conditioners -- if you are purchasing a central air conditioning unit for your home, you should compare efficiency based on the SEER rather than the IPLV.

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