The Efficiency Of Mini-Split Inverter Technology

Warehouseminisplit
3 min readJun 6, 2023

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Inverter technology is the unsung hero of the HVAC world. Initially used primarily in high-end and ductless HVAC equipment, it is now being incorporated into a wider range of systems. Air-source heat pumps (ASHPs), in particular, have benefited from the use of inverter-driven compressors, which adjust the heating or cooling output of the equipment to match the exact demand of the occupied space. In addition, inverters allow heat pumps to operate at lower speeds and consume less energy, resulting in significant energy savings and lower carbon emissions.

The development of cold climate heat pumps was also made possible with the integration of inverter technology, allowing the compressor to adjust its speed and operate efficiently in subfreezing outdoor temperatures. One could easily argue that inverter technology has enabled heat pumps to become one of the most sustainable and energy-efficient heating and cooling solutions currently available.

Inverter technology is likely to become even more popular, as it contributes to reducing the carbon footprint by reducing the energy demands of the HVAC system. Inverters provide for a controlled variation of output based on demand and load. Because load calculations require a system designer to consider maximum extremes, equipment is often oversized for the majority of operational demand. By aligning output with demand, energy usage can be reduced.

Because inverter systems operate only at the speeds necessary to maintain the desired temperature, they often operate at a slower speed, which consumes less energy and increases efficiency, especially at part-load conditions. This ultimately provides a significant impact in reducing carbon emissions during operation.

What is an Inverter Aircon?

The inverter system is a technology created to get rid of temperature oscillations. Years back, electricity waste was a serious problem. Manufacturers realised there was a need to fix it and turned to the inverter system technology. It is an improved version of the advancements during that time. Inverters use adjustable speed, which helps control the compressor of the equipment. This way, it can provide the best performance to the user.

What is a Non-Inverter Aircon?

The standard air conditioning units are often categorised as non-inverters. The systems possess a lower energy-efficient rating. It may not be easy to distinguish one from the other; however, most reputable brands identify a product as an inverter system. Non-inverters were more affordable and can still be found in many homes because this was all that was available 20 years ago.

A non-inverter aircon, in its simplest form, is a system with a fixed-speed compressor motor. It works on an “all or nothing” principle, unlike an inverter aircon. This means the compressor will turn itself off and on instead of keeping the same pace all the time.

Which is the Better Choice?

Compressor Comparison: Inverter air conditioners change the rotation speed of their compressors. The benefit of this capability is that it provides a better and more accurate way of maintaining the temperature. Therefore, having an inverter air conditioner is like owning an intelligent unit. Cooling stays in the room efficiently without needing to keep the AC running at full power.

Efficiency: Inverter AC units have controlled compressor speed. At the same time, their speed can change when required. They are the better choice when you want a unit that can help you save your electricity consumption.

Performance: Inverter aircon units are more versatile, thanks to their compressor system. They will function based on the settings for the room and the thermostat. They adjust their processes based on the current temperature in the room. With this versatility, you can conclude that inverter AC units are the winners in performance.

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