Central Air Conditioner: A Basic Guide on How It Works and Its Benefits

A central air conditioner is one of the best choices for an air conditioning system because it requires minimal upkeep and maintenance, has great cooling performance, and functions quietly and efficiently.

However, when there comes the inevitable time when you need routine maintenance performed on your central air conditioner, or perhaps some repairs and spare parts replaced, you will benefit a great deal if you have sufficient understanding of how a central air conditioner works. You can always call an excellent Singapore air conditioner service provider to perform these AC routine maintenance, other AC repair jobs, and also to consult with them. In this way, you will even gain more information about your centralized cooling appliance.

refrigeration cycle of a central air conditioner

The Refrigeration Cycle of a Central Air Conditioner

A central AC unit operates on electricity and removes heat from the indoor atmosphere through basic refrigeration principles.

The refrigerant will flow through a system of refrigeration lines which run in between the indoor part of the unit and the outdoor part. It will be the motorized fan that will pull the heat from the indoor air into the ductwork. This is when the refrigerant will be driven from the outside compressor coil into the evaporator coil on the inside. The evaporator coil is where the heat or warm air will be absorbed from the indoor atmosphere.

The cold air will then be pushed via the connecting ductwork to the air vents and into the entire house and thus reducing the degree of temperature.

Basically, this is the consistent refrigeration cycle of a central air conditioner that continues over and over to keep your home interior cool.

The Benefits of Choosing to Use a Central Air Conditioner

Cleaner and More Refreshing Indoor Air

Since your central air conditioner draws air out of various rooms inside the house via air ducts, the tendency for the air will be to be pulled through rather sophisticated air filters which will rid the indoor atmosphere of airborne particles, microscopic pollutants, and potential allergens such as dust, dirt, lint, and dander.

The cooled and filtered air will then be redirected to the ductwork which is responsible for carrying it back into the rooms of the house. This is one of the benefits of choosing to use central air conditioner which you may not gain from the more conventional air conditioning systems.

the benefits of choosing to use central air conditioner

Quiet Operation

A central air conditioner will make much less of a noisy mechanical reverberating buzz than the more traditional free-standing AC unit. The reason for this is because a central AC unit has its compressor located on the outside of the house so that the level of indoor sound given off is so much lower. It is even practically unnoticeable inside the house.

Ease and Convenience in Controlling the AC unit

Operating the cooling unit that controls the air in each separate room of the house is handy and easily accessible because the control is placed in only one location. It will be easy and convenient to turn the air on and off or higher or lower with the use of only one control unit that can be programmed to operate during specific periods of time and on specific levels of temperature.

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What You Need to Know About Air Conditioning Service

The use of air conditioners is almost compulsory in most homes. It is as important as renovating your home and making it more lovely to live.  A number can’t stand and can’t live without an air conditioning unit. Comfort is the word. The surrounding temperature is very high and to make people comfortable, and a central air conditioner is an answer.

This is meant to discuss the topic about air conditioning service. When do you know your unit needs servicing?

Signs You Need to Call for Air Conditioning Service

People always wants to be comfortable. You can’t sleep tightly without an air conditioning unit on. Are you having problems with your central air conditioner? Maybe your unit needs air conditioning service. When you feel uncomfortable then probably your unit needs repair or replacement. Here are some signs:

Your AC Unit Won’t Turn On

First, you have to check the thermostat. Maybe the setting is not correct. Be sure to adjust the thermostat to cool. You may also test the circuit breaker; maybe it’s a simple tripped fuse.

You Are Not Comfortable Compared Last Year

The possible cause is airflow. The problem for airflow may be due to a dirty filter. Filters must be washed and cleaned periodically. If you haven’t cleaned it for a long time, please do so before opting to get your air conditioning serviced.

When Your Utility Bills Have Spiked Up

If the increase is unexplained, then your AC unit may be the culprit. It means it is not working efficiently anymore.

The Unit Is Strangely Noisy

Noise may be caused by a loose screw or bearing. A possible source of the noise are the blower motors and fan blade.

The Unit Generates Moisture in Condensate Form

Accumulation of water means there’s some blockage.

If you don’t have any experience with air conditioning service, don’t do it yourself.

Replace or Repair Your Unit?

  1. Age of your air conditioning unit. If the unit is more than 15 years then its time to buy another unit.
  2. If you want to change your central air conditioner to models which are energy efficient ones.
  3. If you frequently call for air conditioning service to add freon to your unit. Adding freon means your unit is not efficient anymore.

Do You Want to Help the Environment?

Do not use or install a central air conditioner to your room.

How do you survive without a central air conditioner? Yes, you can survive without an air-conditioning unit by blocking the sun. Close the curtains and install blinds. You can adjust the blinds or interior shutters and allows you to control the amount of sun entering the room.

Open the Windows

Do this when the outdoor temperature is lower than the indoor temperature. Let the outside winds bring ventilation to your house for free.

Switch On All Your Fans Inside Your Home

During night time position fans in open windows to allow cool air inside. In the morning place them in the coolest area of the room.

Save Energy

Switch off all other appliances you’re not using. Plugging devices even if they unused emits heat.

Plant Trees and Vines

Trees take in carbon dioxide as a food and in turn give off oxygen. Carbon dioxide is one of the main culprits why the earth is experiencing global warming.


Ask a professional air conditioning technician to check your unit. If it is more efficient to buy a new one, then throw your old unit.