There are two main types of AC on the market today, namely inverter AC and non-inverter ac. The inverter AC uses a frequency converter to control the speed of the compressor motor to regulate cooling capacity. On the other hand, non-inverter AC has conventional start-stop compressors, which can only be turned on or off to produce the required cooling effect. The non-inverter AC cannot regulate the speed of the compressor.
The inverter consists of a rectifier and an inverter.
By controlling the switching of the inverter, AC power is converted into DC power. Then, the controller adjusts the AC power frequency of the compressor according to the ambient temperature and heat load. This frequency change will change the compressor speed and cause a shift in cooling capacity.
How does the Inverter AC work? How is it different from a Non-Inverter?
Let me answer your question in Lyman’s way, you will understand.
Non-inverter AC: temperature control is 20, 21, 22, 23, 22, 21, 20, 19, 18, 17, 18, 19, 20, 21 …
Inverter AC: temperature control such as 20.0, 20.1, 20.2, 20.3, 20.4, 20.3, 20.2, 20.1, 20.0 …
The relevant working techniques are as follows:
The conventional method of refrigeration AC is to sense the temperature and compare it with a preset temperature.
If the room temperature is higher than the preset temperature, the temperature lowered by turning on its motor, and it turns off when the heat is lower than or equal to the preset temperature. In the opposite case, it does the same.
Each time the room temperature is changed, the motor turns on and off automatically. Repeated opening and closing is not ideal, which cannot accurately control the temperature, and will shorten the life of the air conditioning components.
The inverter air conditioner works the same as any other refrigeration air conditioner, except that the compressor of the inverter air conditioner can automatically change the speed to adapt to the power supply of the equipment with the required heat or cooling capacity.
To be able to change the frequency of the power input, the controller first converts the AC power input to a DC power. After that, the controller adjusts the AC power frequency of the compressor according to the ambient temperature and heat load. This frequency change will change the compressor speed and cause a shift in cooling capacity.
Therefore, the compressor motor of the inverter air conditioner will not be turned on and off all the time but keeps working at low power, just like in the dormant state. It improves energy efficiency and enables precise temperature control for longer life.
Inverter AC vs. Non-Inverter AC
Inverter AC can cool or heat a room faster than non-inverter AC.
In fact, at the beginning of the process, the frequency conversion AC power needs more power than additional AC power to achieve faster-operating speed.
Once it reaches the required temperature, it does not fall and provides continuous cooling to the room. There is no need to reset it even after a power outage. Therefore, the inverter air conditioner will never decrease the cooling rate because it maintains the set temperature at that specific level.
Frequency conversion AC changes the cooling flow according to the heat of the room. When the temperature is small, the flow is low, and when the temperature is large, the flow is significant.
According to its advanced technology, it can provide the best cooling effect for the room. If the ambient temperature is high, or there are more people in the room, it will increase the cooling capacity of the room. In this way, when the ambient temperature is low, or there are few people in the room, the Frequency conversion AC reduces the cooling capacity.
An inverter air conditioner never switches itself off, instead, and it reduces the speed, therefore, works at the lowest possible values like as if it is hibernating!
Presently, if you know about inductive load is that they got impedance and each time they switch on, it takes in larger current than their prolonged state as on.
This sudden rise in current adds energy loss to the system and also switching on and off action wear away the life of the inner components esp, that of the motor. As inverter AC doesn’t undergo such procedure, their energy loss, life span, and efficiency is higher than that of usual split AC.
The main difference between inverter AC and non-inverter AC is how they operate at room temperature. Cooling and heating is an automated process in variable frequency air conditioning units, as the checker inside the unit adjusts the power supply according to the room temperature, which automatically reduces power consumption, making it more energy-efficient than non-inverter air conditioners.
Non-inverter units turn on and off at any time to keep the temperature within a specific threshold limit near room temperature, thereby reducing environmental protection.
The non-inverter air conditioner stops and starts repeatedly. When the operation stop, the power consumption, and current drop, still, it will rise when restarted, so the average power consumption and temperature vary greatly.
Inverter AC is more energy-efficient and comfortable than non-inverter air conditioners.
The non-inverter AC power first cools the room and cuts off the power to the compressor until the room gets hot again, and then restarts.
Therefore, Fixed frequency AC power will first make the room temperature 1 or 2 degrees lower than the set temperature, and then turn off the compressor. Only the fan can continue to work.
After turning off the compressor, the room started to warm up. When the room temperature is 1 or 2 degrees higher than the set temperature, the AC compressor will start again and cool the room.
Hence, with standard AC power, the room becomes too cold for a short time and then gets too hot. It does not lead to a comfortable sleep.
Moreover, when the AC compressor is running at high speed and continuously restarting, it will consume a lot of currents. This results in very low Fixed frequency AC power efficiency and expensive use.
On the other hand, inverter AC changes the flow of the refrigerant according to the heat of the room.
When there is less heat, the flow is smaller; when there is more heat, the current is more significant. And it never shuts down the compressor.
As long as you set the temperature to 25, you can keep it at that level.
Inverter AC keeps you comfortable because it stabilizes the room temperature at the temperature set on the AC thermostat.
The heating/cooling capacity of the inverter air conditioner varies according to room temperature and outdoor temperature.
Since the compressor in the unit does not switch on and off as frequently as the non-inverter and always operates at moderate temperatures, the noise during operation is much lower.
Non-inverter AC is less efficient in service because they always turn on and off automatically and therefore generate more noise than inverter air conditioners.
Due to its function, it is more challenging to work and thus produces more sound.
Compared with inverter air conditioners, non-inverter AC may be cheaper. Still, they have lower reliability and higher maintenance and management costs.
The inverter unit is the latest technology in air-conditioning technology.
It uses an inverter to control the speed of the compressor, thereby eliminating frequent switching cycles, which ultimately improves efficiency and extends the life of the inverter AC unit components.
Although initial costs may be higher compared to non-inverters, higher costs can offset energy consumption, making them the first choice for air conditioning equipment.
Power Consumption of Inverter AC and Non-Inverter AC?
5-star 0.75-ton non-inverter air conditioner power consumes 576 units of energy in 1600 hours. The BEE three-star inverter air conditioner with the same capacity consumes 550 units of power in 1600 hours.
5-star 1-ton non-inverter air conditioner power consumes 760 units of energy in 1600 hours. The BEE three-star inverter air conditioner with the same capacity consumes 726 units of power in 1600 hours.
5-star 1.5-ton non-inverter air conditioner power consumes 1,130 units of energy in 1600 hours. The BEE three-star inverter air conditioner with the same capacity consumes 972 units of power in 1600 hours.
5-star 2-ton non-inverter air conditioner power consumed 1,412 units of energy in 1600 hours. The BEE three-star inverter air conditioner with the same capacity consumes 1005 units of power in 1600 hours.
5-star 1-ton non-inverter air conditioner power consumes 760 units of energy in 1600 hours. The BEE three-star inverter air conditioner with the same capacity consumes 550 units of power in 1600 hours.
Star Rating of the Inverter AC, does the Inverter AC have a Star Rating?
Star rating of the inverter AC, does the inverter AC have a star rating?
Generally, BEE 5-star AC is considered the most energy-efficient system.
However, it can be seen that, according to the Energy Efficiency Agency, BEE 3-star inverter AC power supplies have higher energy efficiency than BEE 5-star conventional discrete AC power supplies.
BEE has started star rating for the inverter AC. In 2018, Bee combined inverter and non-inverter air conditioner star ratings.