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Have you ever wondered how does an air conditioner work and keeps your house or place of business cool during the sweltering summer months? You might be surprised to learn that your refrigerator and air conditioner function similarly. The main distinction is that while an air conditioner maintains a comfortable temperature in your home, workplace, or commercial space, a refrigerator only cools a small, insulated space. An air conditioner is one component of a central heating and cooling system that transfers thermal energy from outside the house. An air conditioner is a central heating and cooling system that distributes the cold air through sheet metal ductwork by drawing warm air from inside, removing its heat, and replacing it with cooler air. The entire process of bringing the air in your home to a comfortable temperature is underpinned by a very straightforward science idea, and the remaining steps are mechanical. Let’s examine how does an air conditioner work to chill your house.

How Does an AC Unit Operate?

Many people are under the impression that their air conditioner produces chilly air. Not at all. Instead, they function by moving the heat from inside your home to the outside. So, precisely how does this procedure operate?

How does Ac Units Transfer Heat Outdoors?

A cooling substance, known as “refrigerant,” transfers heat from inside your house to outside. Coils that move through a closed system hold the refrigerant. The coils transport the refrigerant through your home’s interior, exterior, and interior. Stations along the path adjust the refrigerant’s temperature, pressure, and condition to control where heat is absorbed or rejected. Among these channels are:
  • Evaporator
  • Compressor
  • Condenser
Let’s examine this procedure in more detail:
  1. The Evaporator Tube Absorbs Heat

Warm air inside your home is pulled in and forces over the cold evaporator coil through a vent. The evaporator coil is the interior station that removes heat from the air and cools it. The cold air is distributed throughout your house by air ducts after being blown into them by a fan. The refrigerant transitions from a liquid to a gaseous form as it absorbs heat from the air passing by, moving along the loop system toward the compressor.
  1. Compressor Increases The Warmth Of The Refrigerant

The compressor reduces the amount of gas. This is typically accomplished by closely compressing the gas between two solid objects. This prepares the refrigerant for condensing by increasing its temperature and pressure.
  1. Outside Heat Transmission Occurs

When the refrigerant hits the condenser (which is outdoors), it is now a superheated vapour and is exposed to the outside air. The heat from the refrigerant is absorbs by the outside air, which lowers its temperature and transforms it from a vapour into a liquid.
  1. Cold Refrigerant Causes The Cycle To Continue

When the heat from the refrigerant has been transferred to the outside, the cool refrigerant returns inside to the evaporator to complete the cycle once more. The procedure is repeat until your home’s interior temperature reaches the intended setting. Currently, your thermostat is telling your air conditioner to switch off.

The function of an Air Conditioner’s Components

Multiple parts of an air conditioner work together to circulate cool air throughout your space. Let’s quickly examine each of them to determine how does an air conditioner work and its parts function.
  • Refrigerant

The refrigerant, which an air conditioner uses as its operating fluid. It cools the interior air in the summer, and in the winter, it warms it. R-22 and R-410A are two refrigerants currently used frequently in the sector. With this class of refrigerants, running costs are lower, and greenhouse gas emissions are decreases.
  • Evaporator Coil

The chilling component of an air conditioner is the evaporator. It uses a blower fan directly next to it to blow cool air into the room. At this moment, a refrigerant cooling agent flows through the evaporator’s coils, rendering them cold. Air from your room is blown over the coils behind the evaporator by a blower, which cools it down and returns it to your room.
  • Compressor

The most crucial component of an air conditioner is this. A compressor performs the task for which it is name. Your air conditioner’s gas is compresses as a result of this. What about the operation of an AC compressor? The refrigerant absorbs the heat from your room as it moves through the evaporator and eventually turns into a heated gas. After that, it is squeeze to create a hot liquid. The cycle is completed when the refrigerant is convert back into a gas and passes through the generator as the process progresses.
  • Condenser Coil

Similar to an evaporator but operating in the opposite, the condenser. It extracts heat from the heated refrigerant and releases it into the open air outside. The refrigerant is cool down for the subsequent cycle by air blown over the condenser coils by a fan behind them. The outdoor device is more frequently referres to as the condenser coil.

Air Conditioner Humidity Control

Even though controlling temperature is an air conditioner’s primary purpose today, this was not always the case. They were initially use to control humidity rather than temperature. Temperature and humidity are closely correlating to each other. Higher temperatures generally increase humidity, though this isn’t always the case. It stands to reason that as the temperature drops, so will the space’s dampness. Lowering the temperature will help you feel much better when swamped and wet. This is because dropping the temperature also lowers the humidity in the space. The evaporator coils in your air conditioner catch the moisture in the air as it travels, and it drips to a drain pan. Your air becomes dryer and colder as a result of this. In this manner, an air conditioner can also keep ideal humidity levels.


You can put your knowledge of how does an air conditioner work to good use now that you have it. You can automate your air conditioning and enjoy even more advantages without fretting about keeping your preferred room temperature by using a smart thermostat or AC controller. Make sure to take excellent care of your air conditioner after purchasing it. To ensure that your air conditioner continues to operate smoothly and effectively for many years, you must stay on top of its maintenance.

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