The evaporator plays a crucial role in the car's air conditioning system. It is responsible for absorbing heat during the process of refrigerant transitioning from a liquid to a gas state, enabling cooling to take place. The refrigerant enters the evaporator through an expansion valve, where it turns into a mist and then transforms into a gas under low pressure. During this transformation, it absorbs heat from the surrounding air, causing the air passing through the evaporator to become cool, which is then blown out through the AC vents.
The installation position of the evaporator is usually hidden and not easily observable, typically located in the middle or bottom section of the central control panel, although the exact location may vary depending on the vehicle model. In most cases, the evaporator is installed inside the passenger-side dashboard, typically situated behind the AC filter. For example, in Honda cars, the evaporator is commonly found within the dashboard on the passenger side, immediately following the AC filter.
Additionally, the evaporator can sometimes be positioned beneath the dashboard, below or near the windshield. Its specific placement may differ based on the vehicle's design and configuration. Proper installation and maintenance of the evaporator are essential for ensuring optimal performance and longevity of the car's air conditioning system, as it directly affects the cooling efficiency and comfort of the vehicle's interior.