Inverter Compressor vs Normal Compressor: Whats’ The Difference?

Air conditioning and refrigeration is a high technical sector and energy efficiency is one of the most important innovation in HVACR. The use of variable speed compressor can improve the energy efficiency, reduce energy waste. What is variable speed compressor? What’s the difference between Inverter Compressor vs. Normal Compressor? Let’s get started with their questions.

What Does Inverter Compressor Meaning?

The inverter compressor generally refers to inverter air conditioner compressor or inverter refrigeration compressor.

The inverter air conditioner compressor is an variable speed compressor for air conditioner. It can be an inverter rotary compressor or inverter scroll compressor. The variable speed ac compressor with inverter technology can increase the efficiency of the air conditioner, thus reducing power consumption saves your costs.

The inverter refrigeration compressor is an variable speed compressor for refrigerator or commercial refrigeration. In the hermetic compressor type, it has inverter reciprocating compressor, inverter rotary compressor and inverter scroll compressor for refrigeration. The inverter compressor uses a drive (also called controller) to control the compressor motor speed or frequency to modulate the cooling capacity according to application requirements.

What Is Normal Compressor?

Normal compressor refers fixed speed compressor for air conditioner or commercial refrigeration. It is an non-inverter compressor, the compressor motor speed is consistent always.

What’s the Normal Compressor Working Principle?

The normal compressor we mentioned is an fixed speed compressor for air conditioner or commercial refrigeration. They work on an “ON and OFF” principle. That means when power on, the compressor starts up and runs at a full speed, when the desired temperature is reached, the compressor switches off.

What Is Inverter Compressor Working Principle?

The inverter-driven compressor has a variable frequency drive (also called inverter drive). The main control panel will send the signals to the drive to regulate the frequency and speed of inverter ac compressor. When the power on, the variable speed refrigerant compressor will speed up gradually to reaches the maximum cooling capacity, reducing the room temperature or refrigerated display cabinet temperature in a short time. When the room temperature or refrigerated display cabinet temperature reaches the setting point, the smart inverter compressor will slow down then run a relative low speed to maintain the temperature.

What Difference Between Inverter Compressor Vs. Normal Non Inverter Compressor?

ItemInverter CompressorNormal Compressor
Power ConsumptionThe smart inverter compressor uses significantly less energy as it runs steadily at a controlled speed.The fixed speed compressor works “ON and OFF”. It use more energy and increase the power consumption.
LifespanThe inverter compressor start less and the speed gradually increases to avoid the large current during startup.The non inverter Compressors experiences the most wear and tear during the start up period. 
Temperature ControlThe digital inverter compressor can run at a low speed to maintain the room temperature of refrigerated display cabinet temperature steadily.The non inverter compressor starts up and stop frequently, causing the sudden fluctuation in the temperature.
Soundless OperationThe dc inverter compressor start up softly and silently.When the normal compressor stops and starts up, it will have some noise.

What’s The Applications of Inverter Compressors?

Application: Inverter compressor air conditioner, inverter compressor heat pump, inverter compressor hvac, inverter compressor refrigerator and so on.

What Are The Advantages of An Inverter Compressor Technology?

  • Energy Saving

A traditional fixed speed (non-inverter) compressor works at a fixed speed, frequently power on and off to meet the refrigeration equipment’s cooling need. It uses more energy when starting because of the abrupt power loads. After power on, it runs at maximum speed all the time. When reaching the setting temperature, it stops. Like this, ON and OFF, ON and OFF, it leads to wasted energy.

Compared with a fixed speed compressor, a variable speed ac compressor or a variable speed refrigeration compressor has a brushless dc motor and a inverter drive. The inverter drive controls the compressor frequency or speed, speed up or slow down according to the targeted cooling load. It significantly saves more energy.

  • Reduce The Temperature Quickly

Same displacement of inverter compressor and non-inverter compressor, the inverter compressor has wide frequency range and wide speed range. When powers on, the variable frequency compressor can run at maximum speed to quickly regulate the delta between product and ambient temperatures. Although the non inverter compressor also run at full speed, but the non inverter compressor speed is lower than inverter compressor.

  • Low Noise & Vibration

Variable speed technology allows the compressor to generate less noise. The variable speed compressor can operates at lower speed, unlike the fixed speed compressor stops. In addition, inverter technology has the “ soft start” characteristic, when the inverter-driven compressor starts at a lower speed, ramps up to full speed within a few minutes and continually adjusts current to provide needed power depending on the system’s conditions, with less vibration and noise.

  • Wide Frequency Feature

The inverter-drive compressor has a wide frequency range, for example, from 30HZ to 90HZ, so the same compressor is suitable for 50HZ and also 60HZ application.

  • Wide Voltage Feature

The variable speed compressor can start in low voltages, while an normal fixed speed compressor may not even start. The dc inverter compressor can avoid protector switches and motor stress and keeping the system performing also in those conditions.

  • Space Efficiency

The inverter compressor has wide speed range, so a smaller variable speed compressor can produce the same cooling capacity of a bigger fixed speed compressor.

What’s The Difference Between The Fixed Speed vs Variable Speed Compressor?

The fixed speed compressor refers to the air conditioner compressor or refrigeration compressor runs at a constant speed. The speed is fixed, not variable.

The variable speed compressor means the compressor speed is variable, can be regulated according to different cold load.

What’s The Dual Inverter Compressor Means?

The dual inverter compressors refers to inverter rotary compressor having two compression chambers.

What Different Types Of Inverter Compressor Does Glen Refrigeration offer?

Glen Refrigeration offers Sanyo air conditioner inverter compressor, including R32 variable speed compressor, R410A inverter ac compressor and R290 inverter compressor. Please click here for more details:

R32 Variable Speed Compressor for Air Conditioner Heat Pump

R410A Inverter AC Compressor for Air Conditioner Heat Pump

R290 Inverter Compressor for Air Conditioner Heat Pump

We also offer Sanyo inverter refrigeration compressor, including R404A variable speed compressor and R290 inverter compressor for commercial refrigeration. Please click here for more details:

R404A Variable Speed Compressor for Commercial Refrigeration

R290 Inverter Compressor for Commercial Refrigeration

Are You Interested In An Inverter Air Conditioner Compressor or Inverter Refrigeration Compressor?

Then contact us now!

Contact us by Email or Whatsapp or fill our the contact form below.

Email: info@greehvacr.com

Whatsapp: 0086 15057108995

We look forward to your inquiry!

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