What does Dual Inverter and Triple Inverter Mean in Air Conditioners?

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Check What does Dual Inverter and Triple Inverter Mean in Air Conditioners?

Today ACs are very common in our lifestyle, but we often get confused between the latest technologies, so in this article we are going to learn the difference between two powerful technologies: Dual Inverter and Triple Inverter AC. Now I guess you have a complete idea about inverter technology. So, here we are going to discuss what is triple AC inverter. And the difference between triple AC inverter and dual AC inverter.


The compressor is used to remove heat from the room by compressing the refrigerant coming from the evaporator of the air conditioner. Think of a compressor like your heart: As your heart pumps blood around your body, the compressor pumps refrigerant through the air conditioner. Refrigerant is like blood: just as blood takes in oxygen and circulates through the body, refrigerant absorbs heat from the room and circulates it to the environment.

Inverter technology

The inverter is possibly the biggest invention in AC recently. Inverter compressor is basically the use of special BLDC motors that can vary the speed of the compressor according to the requirements. In other words, compressors with a built-in inverter can run at a different speed depending on the cooling requirement and not always at the maximum speed. Think of the inverter compressor as a car throttle. When the compressor needs more power, the inverter gives more power. If less power is required, the inverter will produce less power. With inverter technology, the compressor is always on, but consumes less or more energy depending on the incoming air temperature and the level set on the thermostat. The speed and power of the compressor are adjusted accordingly. This allows more precise cooling and, above all, significant energy savings.

Air conditioners without inverter technology used to come with reciprocating compressors. In a piston compressor, the refrigerant was previously compressed by moving the piston up and down. Although reciprocating compressors have good pressure-generating capacity, they have low operating speed and high maintenance cost. Today, most ACs that are equipped with inverter technology are equipped with rotary compressors instead of reciprocating compressors. Rotary inverter compressors contain a shaft with a plurality of blades attached to it. This bladed shaft rotates within the cylinder housing, pushing the refrigerant gas through the cylinder and compressing it at the same time.

Although the concept of the variable speed compressor remains the same, different manufacturers use some subtle variations to differentiate their AC inverter offerings. Let’s examine the different types of inverter compressors on the market and understand the nuances between them.

Dual/Twin Rotary Inverter

To further improve the design of inverter compressors, many AC brands make ACs with two rotary compressors instead of one. LG markets it as a dual inverter, Toshiba and O’General call it a dual inverter, while Blue Star calls it a dual-inverter rotary compressor. Dual inverter ACs are one step ahead of normal inverter ACs. They often come with a more advanced BLDC motor that helps achieve a much wider operating frequency range that helps provide faster and more accurate cooling.

Now, in common AC inverters, there is the use of single cylinder variable speed rotary compressors operating on the simple rotation simple compression principle. However, it has been observed that this design generates strong vibrations due to eddy waves during AC operation, especially at full load, and thus increases the noise level.

However, by using a dual rotary compressor design, two rotary compressors operate with a 180-degree phase difference in their mutual compression timing, resulting in much more stable operation. This not only improves rotational balance, but also increases compression torque, allowing the compressor to run from just 700 RPM to a maximum frequency of 8,000 RPM. Because of this, dual-inverter ACs can achieve variable tonnage. An alternating current of 1.5 tons with double rotation inverter technology can vary the tonnage from just 0.3 tons to 1.8 tons.

8-pole triple inverter

Taking Dual Rotary Compressor Design to the Next Level Samsung offers 8-pole triple inverter technology that helps cool 67% faster, even 68 ° C operations and 69% more energy savings than conventional air conditioners. Unlike the conventional 4-pole inverter, Samsung’s premium AC inverter uses an 8-pole inverter that reaches the required temperature faster and with less vibration.

Expandable inverter

The new Hitachi AC models feature expandable inverter technology specially developed for the tropical climate of India. The expandable AC inverter adopts continuous cascade vector DC inverter system, which has better performance than any common inverter.

The main philosophy behind the design of single throw inverters is that alternating current will expand its capacity as the ambient temperature changes, indoors or outdoors. It ensures pleasant cooling even in adverse weather conditions by expanding its cooling capacity and minimizing the time it takes to reach a corresponding cooling temperature. In addition, it also helps to lower the humidity in the heated room. To improve the coefficient of performance at full and part loads, Hitachi has also introduced a new concept called Dual Flow Expansion Technology (DFET). All of these additions to the Hitachi Consumable Inverter Compressor optimize peak performance to ensure perfect cooling even at extreme temperatures of 52 ° C.

Intellisense Inverter

Whirlpool air conditioners offer an Intellisense smart inverter that adapts to cooling needs through a network of smart sensors. The sensors can detect the number of users, the outside temperature and can make the inverter work accordingly for optimal cooling. They also significantly limit electricity consumption which translates into energy savings. The Intellisense inverter offers silent cooling with a low noise level of 37 dB.

Inverter Scroll Compressor

Daikin is experimenting with inverter scroll compressors. In the models that come with this type of inverter compressor there are two scrolls, one fixed and the other that orbits around the fixed one through the swing link. During compression, the orbiting spiral pushes the refrigerant towards the center causing a reduction in the volume of gas. Later it is discharged to the condenser through the central port. The biggest advantage of scroll compressors is that they require fewer moving parts and minimal torque variation.

Final remarks: What does Dual Inverter and Triple Inverter Mean in Air Conditioners?

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James Hogan
James Hogan
James Hogan is a senior staff writer at Bollyinside, where he has been covering various topics, including laptops, gaming gear, keyboards, storage, and more. During that period, they evaluated hundreds of laptops and thousands of accessories and built a collection of entirely too many mechanical keyboards for their own use.


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