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A low pressure switch is provided to stop the compressor when the compressor _______ pressure falls below the safety limits:
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Which of the following diagram is also known as Mollier diagram:
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R-410a is the best replacement for R-22 refrigerant
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A minimum openable area to the outdoors shall be ______ percent of the floor area being naturally ventilated.
Vapor can be present in the liquid line, if there is _______ pressure drop in the liquid line:
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