An air-cooled condenser that is operating in a climate that has four distinct seasons must ____.
A) have some type of head pressure control
B) use a water regulating valve
C) have a multi-circuit evaporator
D) operate with zero degrees of subcooling

Question

Quizplus · Accepted Answer

An air-cooled condenser operating in a climate with four distinct seasons will experience fluctuations in outdoor temperatures, which can cause head pressure to rise or fall. To prevent damage to the system and ensure optimal performance, some type of head pressure control (such as fan cycling, variable speed drives, or hot gas bypass) is needed. Water regulating valves and multi-circuit evaporators are not relevant to an air-cooled condenser. Zero degrees of subcooling would not be achievable in an air-cooled system, as it relies on ambient air to cool the refrigerant.

An Air-Cooled Condenser That Is Operating in a Climate That