Master the Certified Energy Auditor Exam 2025 – Power Up Your Energy Audit Skills!

Question: 1 / 400

Which of the following is a key component of an air-source heat pump?

Fan

Compressor

A key component of an air-source heat pump is the compressor. The compressor plays a crucial role in the heat pump system by circulating refrigerant throughout the system and facilitating the heat transfer process. In cooling mode, the compressor compresses the refrigerant, raising its pressure and temperature, before it moves through the heat exchanger. This process enables the heat pump to absorb heat from the outside air and transfer it indoors. Conversely, in heating mode, the compressor helps to extract heat from the indoor air and expel it outside.

The efficiency and effectiveness of the heat pump rely significantly on the compressor's operation, making it an essential part of the system. Understanding the function of the compressor is critical for assessing the performance and energy efficiency of an air-source heat pump system.

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Heat exchanger

Thermostat

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