The document explains how an air conditioner compressor functions, emphasizing its role in cooling by compressing refrigerant gas and that it consists of key components including a piston and cylinder. It describes two main types of compressors: reciprocating, suitable for residential use, and rotary, used in commercial applications. The importance of regular maintenance to ensure the compressor operates efficiently is also highlighted, along with signs that may indicate the need for repair.

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by Izzy HVAC Expert March 21, 2023
How Does an Air Conditioner Compressor Work?
alturascontractors.com/how-does-an-air-conditioner-compressor-work/
Air conditioning is a common piece of equipment in many households and commercial
spaces. An air conditioner works by removing heat from the air inside your home, sending
the heat outdoors, and recirculating newly cooled air throughout your house. However,
have you ever wondered how your air conditioner brings in cooled air inside your house?
One of the key components of an air conditioner is the compressor, which plays a crucial
role in this secret cooling process. Therefore, in this article, we will explorehow does an
air conditioner compressor work and the different types of compressors.
Air Conditioning System Parts
Navigation
Air Conditioning System Parts
Air Conditioning Process
Air Conditioner Compressor
How Does an Air Conditioner Compressor Work?
Types of Air Conditioner Compressors
Reciprocating compressors
Rotary compressors
How do you know if your AC compressor needs repair?
Air Conditioner Compressor Maintenance
Central air conditioning systems are made up of three parts i.e. an evaporator, a
condenser, and a compressor. The compressor serves as a bridge between the
evaporator, located inside your air conditioner, and the condenser, the unit outside your
home.
Air Conditioning Process
The air conditioner pulls warm air through return air vents from rooms throughout your
house. Coils in the evaporator unit, which are filled with refrigerant, absorb the heat. The
heat-filled refrigerant is pumped outdoors to the condenser unit so that the heat can be
released. The refrigerant travels back to the evaporator where the process begins again.
Air Conditioner Compressor
An air conditioner compressor is a mechanical device that compresses refrigerant gas in
the air conditioning system. The compressor increases the pressure of the refrigerant,
which increases the temperature of the gas. The high-pressure and high-temperature gas
then flows through the air conditioning system to cool and dehumidify the air.

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The compressor is located in the outdoor unit of an air conditioner and is driven by an
electric motor. The compressor has two main components – a piston and a cylinder. The
piston moves up and down inside the cylinder, compressing the refrigerant gas as it
moves. The compressor also has valves that open and close to allow the refrigerant to
flow in and out of the compressor.
The cooling process begins when the refrigerant gas enters the compressor. As the
piston moves down, it creates a vacuum, and the low-pressure gas is drawn into the
cylinder. As the piston moves up, it compresses the gas, increasing its pressure and
temperature. The hot, high-pressure gas then flows out of the compressor and into the
condenser.
Types of Air Conditioner Compressors
There are two main types of air conditioner compressors: reciprocating and rotary.
Reciprocating compressors
Reciprocating compressors use pistons and cylinders to compress the refrigerant gas.
These compressors are typically found in smaller air conditioning units. They are ideal for
residential use. They are simple, reliable, and energy-efficient, making them a popular
choice for home cooling.
Rotary compressors
Rotary compressors, on the other hand, use a rotating vane or scroll to compress the
refrigerant gas. These compressors are found in larger air conditioning units and are ideal
for commercial use. They are more complex than reciprocating compressors and require
more maintenance. However, they are more efficient and provide better cooling.

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Hence, the air conditioner compressor is a critical component of an air conditioning
system that is responsible for compressing the refrigerant gas and circulating cooler air.
Understanding how does an air conditioner compressor workand the different types
available can help you choose the best air conditioner for your needs. However, when
purchasing an air conditioner, be sure to consider the size, efficiency, and type of
compressor to ensure that you get the best performance and value for your money.
How do you know if your AC compressor needs repair?
Since the compressor is one of the crucial parts of an air conditioning system, it can
sometimes develop problems. Be mindful of these signs to know if your Air conditioner
compressor needs repair:
Strange noises coming from the unit
A drastic change in airflow or indoor temperature
Leaking moisture or refrigerant around the unit
If you are experiencing any of these above signs always rely on a professional HVAC
contractor to handle the situation.
Air Conditioner Compressor Maintenance
Air conditioner compressor maintenance is inevitable for the smooth and uninterrupted
functioning of your air conditioner. Only a professional and experiencedHVAC company
should perform any tune-ups on your air conditioner’s compressor. During an air
conditioning maintenance visit, Alturas HVAC air conditioning service technicians will
check the refrigerant levels to make sure enough refrigerant is present. Running your air
conditioner with too little refrigerant can put stress on the compressor. Over time, this
stress could cause the compressor to fail.

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Now that you understand how does an air conditioner compressor work, keep it working
properly and efficiently by scheduling an air conditioning maintenance appointment today.
Call Alturas HVAC contractors now.