ESCO Air Conditioning Practice Exam

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Prepare for the ESCO Air Conditioning Practice Exam. Study using flashcards and multiple-choice questions with detailed hints and explanations. Get ready to ace your exam!

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What is the function of a low pressure cut off switch in an air conditioning system?

Prevent evaporator icing
Establish a minimum operating pressure in the evaporator
Increase compressor efficiency
Regulate discharge pressure

The correct answer is: Prevent evaporator icing

The function of a low pressure cut off switch in an air conditioning system is to prevent evaporator icing. This switch is designed to monitor the pressure in the system, and if the pressure drops below a safe level, the switch will cut off power to the compressor to prevent the evaporator from freezing. This helps protect the system from damage that can occur due to ice buildup in the evaporator coil, ensuring the proper functioning of the air conditioning unit. Options B, C, and D are incorrect because they do not accurately describe the function of a low pressure cut off switch in an air conditioning system.