Where is the evaporator typically located in an A/C system?

The evaporator is typically located under the dash in an A/C system. This placement is strategic, as the evaporator needs to be positioned within the vehicle's air distribution system to effectively cool the air that is circulated into the passenger compartment. When the refrigerant passes through the evaporator, it absorbs heat from the cabin air, causing the refrigerant to evaporate and cool the air that then flows through the vents.

Being located under the dash also allows for easier integration with the vehicle's existing air control systems and maximizes the efficiency of the cooling process. This positioning is essential for ensuring consistent comfort levels within the vehicle as it allows the cooled air to be rapidly distributed throughout the cabin.

In contrast, under the hood is typically reserved for components like the condenser and the compressor, while the trunk is unlikely to house any part of the A/C system. The compressor housing focuses on the mechanical working of the compressor itself, not accommodating the evaporator's function. Thus, the specific placement under the dash is crucial for the operation of the A/C system.