The Parts Of An Air Conditioner

 If you have an AC unit at home it is always useful to know its parts and how they work. In such case you can troubleshoot and manage small faults appearing in the machine. Although a breakdown will always require professional intervention, such knowledge will also enable you to decide when you should not try to do a repair work yourself and leave the complex and mechanical issues on the professional hand. Here we will discuss the three powerhouses of an air conditioner:

• The compressor ,
• The condenser, and
• The evaporator.


The simple scientific principle that plays behind the working of an AC is when liquid turns into gas, it absorbs heat. These machine parts help in the mechanism.

 The Compressor

The air conditioner primarily takes the heat from your room and transfers it outside into the surrounding to make the inside air cool. The compressor plays a key role in enabling the process. The compressor, like the human heart, helps the refrigerant to flow in a continuous cycle. The refrigerant can be compared with human blood. It is the coolant that absorbs heat present inside the room air to make it cool. It is this cool air that is recirculated through the ducts to make rooms comfortable. When you power on the AC, the gaseous refrigerant arrives at the compressor through a suction line. A typical compressor has parts such as piston, crankshaft, valves, and cylinder. These squeeze the gas very tightly. Consequently, the molecules in the gas gets compressed which shoots up both its pressure and temperature. Thus, the compressor changes the low pressure gas into the high pressure state.

 The Condenser

The high pressure gas enters the condenser from the compressor. The condenser is a device that condenses the gas at a high pressure and high temperature to the liquid state. The condenser is a heat exchanges that eliminates the extracted heat from the interior of the unit. The heat extracted by the condenser is vented out from the house through an exhaust. The condenser cabinet has a fan inside which boosts efficiency of the condenser in to changing the state of the vaporous refrigerant. The condenser is made of hollow coils.

The Evaporator

The evaporator figures in the last step of the cooling process. The cold refrigerant in the condenser now enters the evaporator. The evaporator has a low pressure. The hot air that is sucked from the rooms enters the ducts. A fan blows the hot air over the cold evaporator coil. The cool refrigerant in the coils absorbs the heat and make the air cool. The refrigerant turns vaporous in the due process. The fan assists in the contact of the air and coils. The fan again blows the cold air back to the room. The cold air being heavier than hot air, it comes down near the floor. The gas leaves the evaporator and enters the compressor to repeat the whole process again and again.

 The three powerhouse of AC goes on working in tandem till the temperature demanded by the thermostat is reached. Once it reaches the desired temperature, the AC shuts down and starts again when temperature rises above the desired temperature.


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