Danfoss Booth #2103
January 2007
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According to the company, compared with most energy-optimized commercial appliances, units equipped with NLV compressors show savings up to 30 percent in upright freezers and refrigerators. Energy savings are said to be in large measure due to employment of a permanent magnet electronically commutated motor (PM/ECM) and variable capacity operation. NLV variable capacity is achieved with an adaptive energy optimizer and self-learning electronic logic. External speed control of NLV compressors is also possible. Variable capacity means compressor capacity is constantly adjusted to match load. Appliance compressors are traditionally sized for maximum load operation, and at part load, excess capacity means wasted energy. The company’s NLV compressor eliminates part load waste, significantly reducing energy cost.

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