In an air conditioning system, what is the primary function of the evaporator coil?

Prepare for the HVAC 403A Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

In an air conditioning system, what is the primary function of the evaporator coil?

The evaporator coil removes heat from the indoor air by absorbing energy into the refrigerant as it boils into a low-pressure gas. As room air passes over the cold coil, heat moves into the refrigerant, cooling the air and causing the refrigerant to evaporate. This is the part of the refrigeration cycle that produces cooling inside the building, with the warmed vapor then moving on to the compressor and condenser in the outdoor unit. The other actions described belong to other components: releasing heat outdoors is done by the condenser coil; compressing refrigerant gas is the job of the compressor; and air filtration is handled by the filter (and related airflow components), not the evaporator coil itself.

The evaporator coil removes heat from the indoor air by absorbing energy into the refrigerant as it boils into a low-pressure gas. As room air passes over the cold coil, heat moves into the refrigerant, cooling the air and causing the refrigerant to evaporate. This is the part of the refrigeration cycle that produces cooling inside the building, with the warmed vapor then moving on to the compressor and condenser in the outdoor unit. The other actions described belong to other components: releasing heat outdoors is done by the condenser coil; compressing refrigerant gas is the job of the compressor; and air filtration is handled by the filter (and related airflow components), not the evaporator coil itself.

More practice questions