Understanding the Various Air Conditioner Parts and Their Functions

The air conditioner is one of a homeowner’s most useful appliances, lowering indoor temperatures for maximum comfort. It may seem like there’s not much to the unit itself—you activate it with a remote, and it releases cool air. However, the reality is entirely the opposite. An average AC consists of various complex parts integral to its function.

Here are the main components of air conditioners and their purposes.

Compressor

As the name suggests, compressors receive warm refrigerant air and compress them into denser forms. The process increases the pressure and temperature in the refrigerant, which is later pushed through the coil.

Compressors can be found in a wide array of types and sizes, depending on the AC’s cooling capacity. However, each product relies on steady refrigerant supplies and lubricant to work correctly. It should be checked regularly for refrigerant leaks to avoid compressor damage.

Blowing unit and air handler

These two components work side by side, drawing air to the evaporator and distributing cool air throughout the house. Coupled with the duct system, they facilitate airflow in each room.

Evaporator coil

The evaporator coil is located inside the air handler. Lined with aluminum fins, it looks and works like a car radiator. The most significant difference is that the evaporator coil absorbs heat rather than rejecting it. Evaporator coils collect and process heat. The refrigerant inside them absorbs heated air and reduces pressure to spread the liquid and convert it to a gas. Afterward, a fan blows the cool air over the coils and into different rooms.

Condensing coil

The condensing coil is the outdoor version of the evaporator coil. It’s fitted into a condenser coil to cool down high-pressure gas and convert it back into a fluid. The liquid is then transferred to the evaporator.

Thermostat

The thermostat enables homeowners to maintain the temperatures of their air conditioners. Thermostats regulate the heat entering and leaving the system and can be adjusted automatically or manually. There can also be different thermostat settings, depending on the model and its features.

Air filter

While the AC can work without an air filter, dirt and dust circulating in the air can quickly accumulate and cause damage. Additionally, efficient filters can dramatically improve indoor air quality, addressing air pollution and allergens.

Fan

The outdoor condenser can get scorching hot due to overheated refrigerant circulating through it. Fins and fans draw the excessive heat away from the component to prevent damage to the unit.

Expansion valve

The expansion valve can be found between cold evaporator coils and heated condenser coils. It also plays a pivotal role in the system, controlling the amount of refrigerant that enters the evaporator.

Overall, a standard air conditioner comprises a number of intricate components. To make sure they’re in excellent condition, hire a dependable AC technician for an in-depth inspection.

When you need heating or refrigeration service, maintenance or repair, call us at Affordable Comfort A/C and Heating 602-574-1205.