One of the key decisions when it comes to choosing the right HVAC (heating, ventilation, and air conditioning) systems for your residence or business is whether to opt for an inverter or a non-inverter.
Understanding the distinctions between the two can help you to make an informed decision that satisfies both your comfort needs and energy efficiency goals.
How Inverter and Non Inverter HVAC System Work?
Inverter and non-inverter lays in the component of a compressor which purposes to circulate the refrigerant in the system under pressure.
The goal of both systems is to regulate indoor temperature and preserve comfort levels. However, they achieve this goal through different means, primarily in how their compressors operate.
1. Inverter HVAC Systems
By introducing variable speed compressor, inverter system has advanced the HVAC industry.
Unlike the conventional system that operates at fixed speeds, inverter system has the ability to adjust the speed of the compressor according to the cooling or heating demand.
In contrast to non-inverter system, this system has extra component - inverter driver, also known as AC drives or variable frequency drive (VFD).
It is an electronic device that is housed in the HVAC unit, functioned to turn direct current (DC) to alternating current (AC) and responsible for controlling speed.
The inverter system continually adjusts the compressor speed to match the required output when a desired temperature is set. If the temperatures need significant adjustments, the compressor swiftly ramps up to meet the demand.
Vice versa, the compressor slows down in milder conditions to consume less energy while still maintaining comfortable indoor temperatures.
This dynamic operation not only provides precise temperature control but also delivers significant energy savings compared to non-inverter systems.
Inverter HVAC units are well known for their efficiency, quieter operation, and reduced wear and tear on components due to fewer frequent start-stop cycles.
2. Non-Inverter HVAC Systems
Fixed speed or conventional system, which are often referred to as non-inverter system, function in a distinct way. Instead of handling variable load, the system is designed to handle the expected peak load.
Their compressors run at constant speed, and usually work on a simple on and off mechanism to maintain desired temperature (Elly, 2024).
In a non-inverter system, when the temperatures fall short from the setpoint, the compressor kicks in at full capacity to cool or heat the room swiftly.
The compressor then stops working until the desired temperature is reached, marking the start of the next cycle (Zaman, 2024).
While non-inverter system is reliable and have been the standard for many years, they come with some drawbacks. The frequent start-stop cycles may result to temperature fluctuations, reduced efficiency, and higher energy consumption.
Additionally, noise can also be produced by the compressor’s abrupt cycling. Besides, constantly running the compressor on and off consumes more energy and may cause the system to deteriorate more quickly.
Choosing the Right HVAC System
Now the distinct between the two systems are cleared, how to decide which systems suit the needs best?
Below are factors to consider:
1. Energy Efficiency
Inverter systems generally is more energy efficient, especially in moderate climates. An inverter system can be a better option if saving energy is a priority.
2. Comfort
The variable speed compressor of an inverter system allows for more accurate temperature control and more quiet operation. If optimal comfort and minimal noise are valued, an inverter system may be preferable.
3. Initial Cost vs Long-term Savings
Although inverter system often has a higher upfront cost initially compared to non-inverter units, they can result in long-term energy bill savings that are substantial. When making a decision, long-term savings potential and budget should get into consideration.
Summary
In conclusion, we can conclude that both inverter and non-inverter has each own pros and cons:
Comparison | Inverter HVAC | Non-Inverter HVAC |
|---|---|---|
Compressor Speed | Adjustable | Fixed |
Energy Efficiency | High | Low |
Temperature Control | Precise | Imprecise |
Noise Level | Low | High |
Installation Cost | High | Low |
System Longevity | Longer | Shorter |
Size | Bigger | Smaller |
TCW Group, as a one stop HVAC manufacturer based in Malaysia, able to provide services starting from design of the units based on customized applications, up to manufacturing and complete unit assembly.
Shall you have any inquiries, feel free to reach us at info@tcw-my.com
References
Elly, F. (2024, January 2). Inverter Air Conditioner VS Non-Inverter: Which one should you go for? ArtiqAir. https://artiqair.com.my/en/inverter-air-conditioner-vs-non-inverter/
Inverter AC vs Non-Inverter AC: Which One is Right for You? (n.d.). https://www.haier.com/bd/about-haier/news/20230212_206091.shtml#:~:text=According%20to%20a%20SpringerLink%20article,save%2049%25%20of%20CO2%20emissions.
What does an inverter do ? | Fuji Electric Global. (n.d.). Fuji Electric Global. https://www.fujielectric.com/about/column/detail/inverter_01.html
Zaman, S. (2024, May 8). Choosing the right AC: Inverter vs Non-Inverter. The Business Standard. https://www.tbsnews.net/supplement/choosing-right-ac-inverter-vs-non-inverter-844911
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