AC Working Principle

An air conditioner is essential in all parts of the United States, as well as other countries worldwide that have hot weather during the year. Air conditioners are quiet and provide comfort from the heat.

This is why ACs have a higher market share than air coolers, fans, and coolers.

For eight hours, you must be seated in an office because you require comfort. The AC absorbs heat from outside. It then processes the air with the refrigerators and coils in it. The cold air is expelled and the temperature drops.

ACs remove heat and feel fresh. Self evaporating air conditioners not only cool your home but also create a more comfortable environment. The modern AC units are equipped with disposable or washable filter media that filters out allergens and pollutants. There is one thing we didn't understand about AC: What is the AC working principle? Why is it measured in tons?

These Five Components Influence The Working Principle of An Air Conditioner


An evaporator functions as a heat-exchanger coil. It is responsible to collect heat within the room with a refrigerant. Where the liquid refrigerant gaz absorbs heat, and evaporates to form gas, the refrigerantgas is sucked heat. R-410A and R-22 are three of the most common refrigerant gases. They absorb heat from the room and then pass it on to the next element for further process.


The compressor is an outside unit for cooling the air. It compresses gaseous refrigerant in order to propel cold air.


Condenser is another external unit that takes vaporized refrigerant from compressors and converts it into liquid. The heat is then expelled outside.

Expansion Valve

The expansion valve is located between two coils (the cool and the hot), to monitor the refrigerant.


The refrigerant gases is the chemical responsible for keeping the air incoming cool. It is known by the names Freon gas and R-22 refrigerant.

The air conditioner gathers warm air from the area, processes it using Freon gas and then propels cold air instead of hot. This is how the ac cools the interior.

The air conditioner does NOT produce cold, as it operates on the principle physical and chemical phenomena. This allows it to effectively cool the space. You can achieve the desired temperature by using coolant gas contained within the AC.

The refrigerant becomes hot when it is exposed to warm air. Once the gas has become hot, it then falls on an evaporator coil. This absorbs heat, humidity and other moisture. The whole process repeats itself until no more warm air is left in the room.

Air Conditioner Working Principle

An air conditioner gathers warm air from a location, processes it with a refrigerant along with a series of coils, and then releases it to the spot where the hot air was first collected. This principle underpins almost all air conditioners.

Many believe that an AC conditioner can produce fresh air using the machines it houses, which can allow it to cool a space quickly. It is this that the air conditioner uses so much electricity. This is not necessarily true as it is possible to exercise air conditioning economy by using common sense.

The air conditioner uses a combination of physical and chemical phenomena to create a comfortable indoor atmosphere. If you turn on an AC and set the temperature to 20-25 degrees, the thermostat will sense that there is a temperature difference.

This hot air is drawn through the grille from the base of an indoor unit. The air then flows through some of those pipes through which either the refrigerant, or the cooling liquid is leaking. The refrigerant liquid absorbs heat which makes it hotter.

This is how the weather is removed in the air passing on the coil. The evaporator also absorbs heat from the incoming atmosphere and expels it, helping to reduce condensation. The hot refrigerant gases is then transferred to the compressor, which is located on an external unit for split AC.

The compressor reduces the temperature of the cooling gases by compressing it. This hot, high pressure gas then flows to the third part called a condenser.

Standard AC Principles Which Influence Cooling

Again, the condenser reduces the hot air vapour so it can be made into a liquid. While the refrigerant initially reaches the capacitor as hot gas, it soon becomes a liquid due to the heat transmitted by the hot gaz to the surrounding environment through metal fins.

Once the refrigerant has left the condenser, its high temperature is lost and it becomes a cooling liquid. It flows through the expansion valve. This is a small hole made in the copper tubing. This regulates the flow of cold liquid refrigerant from the condenser to the evaporator. Thus, the refrigerant arrives exactly where it started.

The basic cooling operation remains the same, even though different types of machinery are used in the AC window AC. The process continues until the desired temperature has been reached in the area. An AC unit pulls hot air into the room, and then returns that hot air to cool it. These AC principles can be used to provide optimal cooling depending on the specific problem.

Air conditioners are a necessity for many. But it's surprising that these units were not designed to provide comfort for humans when they were first manufactured. The original idea for modern air conditioning systems was to fix some of the issues in the AC operating principle.

Why an Air Conditioner Capacity is Measured in Tons

Many people are familiar with the size of a ton, which is roughly 2,000 pounds. When we refer to the air conditioner's capacity, however, a ton (or tonne) means something entirely different.

A three-ton air conditioning unit does not weigh three tonnes. How can you imagine installing something as heavy as a 6,000-pound conditioner in your house? The term "three tonnes" refers to the cooling power of an air conditioner in cooling a building in less than an hour.

This is where the phrase came from. The capacity of air conditioners is measured in tons. It has approximately 12,000 British Thermal Units, which is how much energy is required to heat one pound worth of water.

Industry professionals continue measuring the heat an AC conditioner generates from a building's structure as cooling methods evolved from old-fashioned, ice to modern, more efficient models. It can be taken out as many tons. It can be extracted as tons if it is a three-ton unit. In HVAC parlance, a ton equals 12,000 BTU. The air conditioner will then remove around 36,000 BTU per hour from your house.

AC technicians can repair your air conditioner. They not only offer a great service, but they also charge a very reasonable price for cleaning your AC. After reviewing all aspects of AC operation, it was discovered that an air conditioner is designed to provide you with extra comfort in the most extreme weather conditions.

The AC principle is a simple vapor compression cycle that reduces the air temperature by using a compressor and expansion valve. The entire cooling process involves heat transfer between the room air, refrigerant and gas. The cycle continues until the inner air reaches the desired temperature. AC works on a principle of collecting hot air from a room and processing it to create pleasant ambiance.

The five main components of an air conditioner are what determine its working principle.

AC Summary

The air conditioner cools your building by moving heat from the indoors outside. The refrigerant gas in the system absorbs heat from the indoors and pumps it outdoors through a system of piping. The fan in the external unit blows outside through the coil, and heat is transferred to the outside air by the refrigerant.

Split-type central air conditioner units work by a split system. The hot side is the condensing device in coordination to the compressor, fan and condensing coil located outside your home and the cold side is inside your home.

The cold side includes an expansion valve, along with a coil. It is usually part your air handler. The existing air flows through an air compressor coil that cools the air. The cool air then flows through the home via air ducts. A window unit uses the same principle as a window unit, but the cold side is housed within the unit.

The thermostat, which is an air conditioner system, controls compressor. The compressor functions as the pump that circulates the refrigerant throughout the system. It is responsible for drawing in a low pressure, low-temperature refrigerant gaz in a liquid state. Then, it compresses the gas to raise the temperature and pressure. The high-pressure liquid then flows to the condenser.

The condenser is made up of a series, piping and a fan that draws outside air. The condenser coil is a series of piping that passes cold air across. As the refrigerant moves through the coil, the heat from the refrigerant causes the air to absorb the heat and turn it into liquid. The high pressure liquid then reaches and works with the expansion valve.

An evaporator is a set of pipes attached to an air handler. It blows indoor air across the coil, which causes it to absorb heat from the outdoors. The cooled air flows through ducts to the rest of the house. The liquid refrigerant returns to the compressor. The primary function for the evaporator coils is to extract heat from air and add refrigerant gas.

[Back to TOP]