Assuming they both have the same condenser temperature, which application requires more horsepower to produce a ton of cooling: a 0°F evaporator, or a 40°F evaporator?
A) The 40°F evaporator, because of its higher pressure
B) The horsepower requirement per ton of cooling is not affected by the evaporator temperature.
C) The 0°F evaporator, because of the higher pressure difference
D) The horsepower requirement is too complicated a calculation to make any valid comparison based only on evaporator and condenser temperatures.
C
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