How does an aircon work?

Posted by larkpeyton on February 19th, 2020

How does an aircon work?

Singapore and air conditioners have an unbreakable bond. Perpetually hot weather with high humidity is a way of life in Singapore. Air conditioners make the surroundings cold, moisture-free, and tolerable.

With the flick of a button, your room can be cooled within minutes. Let’s understand how this magical appliance works.

Before we understand the working of the aircon, here’s a list of the core components of the unit.

• Compressor
• Condenser coil
• Evaporator coil
• Refrigerant
• Piping
• Thermostat
• Fan
• Other control devices


Working of an air conditioner

The AC uses a “refrigeration cycle” to remove heat from your room and pump it out to the atmosphere. The aircon is quite similar to a refrigerator in terms of working.

The compressor, condenser coil, piping, and evaporator coil form a closed loop. A pressurized chemical called refrigerant is pumped into the system at the time of installation.

Here are the steps how your aircon works:

1. The refrigerant is compressed by the compressor (outdoor unit). Compression of gas produces heat, so the refrigerant gas gets heated above atmospheric temperature.

2. This gas is then pumped through the condenser coil. The coil has a large surface area and a fan to blow air over the coil.

3. The pressurized refrigerant loses its heat to the atmosphere when it passes through the condenser coil.

4. The pressurized gas then travels to the evaporator (indoor unit).

5. The evaporator allows the gas to expand (lose pressure). Expansion causes gas to absorb heat.

6. The evaporator coil gets chilled as the heat is absorbed by the gas inside the evaporator coil.

7. A fan blows air through the chilled evaporator coil, and the air inside the room loses heat.

8. The heated refrigerant is then pumped to reach the compressor.

This is the refrigeration cycle, and that’s how your AC pumps heat out of your room. All this happens in a closed loop where the gas is present at high pressure even

Regular aircons thus require frequent maintenance and repair. MCL Air Conditioning is one of the best providers of aircon servicing in Singapore. MCL is reliable aircon company in Singapore which undertakes installation, servicing, and repair jobs. The technicians are well-trained professionals. You can expect the best quality aircon service when you call MCL Air conditioning. Aircon chemical overhaul is our specialty, please book our chemical overhaul service.