ASE G1 Auto Maintenance and Light RepairHeating and Air Conditioning (HVAC)Easy

Which component is responsible for converting high-pressure refrigerant vapor into a high-pressure liquid by dissipating heat to the ambient air?

  1. ACompressor
  2. BAccumulator
  3. CCondenser
  4. DEvaporator
Show answer & explanation

Correct answer: C. Condenser

The condenser, typically located at the front of the vehicle, dissipates the heat absorbed by the refrigerant, causing it to change state from a hot, high-pressure vapor to a high-pressure liquid.

Why the other options are wrong

  • A. The compressor increases the pressure and temperature of the refrigerant vapor.
  • B. The accumulator separates liquid from vapor and stores excess refrigerant on the low-pressure side in orifice tube systems.
  • D. The evaporator absorbs heat from the cabin and converts liquid refrigerant to vapor.

Condenser Function

The condenser is a heat exchanger that converts high-pressure refrigerant vapor into high-pressure liquid by releasing heat to the surrounding air.

  • Located on the high-pressure side of the system.
  • Usually in front of the radiator.
  • Facilitates heat transfer from refrigerant to ambient air.
  • Essential for the phase change from vapor to liquid.

Memory trick: Condenser cools down, evaporator cools in.

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