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Master of HVAC: The Ultimate Heating & Cooling Maintenance Quiz
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What is the purpose of a heat pump's reversing valve?
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Hint
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50-50
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Audience
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A
To regulate the speed of the fan motor
B
To switch the direction of refrigerant flow to allow both heating and cooling
C
To shut down the system during an electrical surge
D
To mix outdoor air with indoor air
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