So, you're curious about the part of your air conditioning system that lives inside your house? It's not just a box; it's a crucial component with a specific name. Let's dive into the details of what that indoor unit is called and what it does.
Understanding Your Air Conditioner's Components
Air conditioners, whether window units, split systems, or central AC, are comprised of two main parts: the outdoor unit and the indoor unit. The outdoor unit, often referred to as the condenser, handles the heat exchange process by releasing hot air outside. But what about the part inside your home, responsible for blowing cool air?
The Name: Evaporator Coil or Air Handler
The indoor unit of an air conditioner has a couple of names, depending on the type of system. The most common and technically accurate name is the evaporator coil. This is because this part of the system uses refrigerant to absorb heat from the air inside your house, causing the refrigerant to evaporate. This cooled refrigerant then circulates back to the outdoor unit to release the absorbed heat.
In central air conditioning systems, the indoor unit is frequently called an air handler. The air handler isn't just the evaporator coil; it also includes the blower, which circulates air over the evaporator coil and distributes the cooled air throughout your home via ductwork. Think of the air handler as the whole indoor assembly that works in conjunction with the outdoor unit.
Evaporator Coil: The Heart of the Indoor Unit
The evaporator coil is the key component within the indoor unit. It's a network of copper tubing with fins to maximize surface area for efficient heat transfer. This is where the magic happens: the refrigerant absorbs heat, resulting in cool air. Proper maintenance of the evaporator coil, including regular cleaning, is crucial for optimal performance and efficiency.
Air Handler: More Than Just a Blower
As mentioned, in central AC systems, the air handler plays a larger role. It houses the evaporator coil, the blower motor, and often a filter for air purification. The blower is responsible for moving the cooled air through the ductwork to reach different rooms in your house. Regular filter changes are essential for maintaining good air quality and preventing the air handler from working too hard.
Different Names, Same Function
While the technical term is evaporator coil, the term air handler is commonly used, especially by HVAC technicians and in the context of central air conditioning systems. Both names refer to the essential indoor unit responsible for providing cool, comfortable air within your home. Understanding the function and the different names for this part of your AC system will help you better communicate with technicians and understand your system's workings. Remember, regular maintenance of both the indoor and outdoor units is critical for maintaining optimal efficiency and extending the lifespan of your air conditioning system.
