The HVAC industry has seen many changes over the years. They have been constantly innovating and revolutionizing systems to meet ever-growing efficiency demands. Variable Frequency drive (VFD), also known by Inverter and Variable Speed drive (VSD), are examples of such technologies. https://ourworldblog01.blogspot.com/2022/08/what-are-benefits-to-using-inverter.html
- Inverter technology
The Variable Frequency Driver (VFD) is an electronic power element that controls the compressor's rotational speed (RPM). It does this by changing the frequency of the motor supply.
- Inverter Technology's Benefits
Heat pumps and chillers are typically only used at part load. The chiller compressor can spend many hours operating in an off-design mode. Part load operation requires that the chiller compressor performs as efficiently and reliably as possible. Find out why part load efficiency matters.
- Energy performance
Inverter technology is able to ensure chiller performance regardless the cooling demand. Variable Frequency drive (VFD), technology allows chillers to adapt to varying loads, regardless of their requirements. Inverter technology regulates the speed of the compressor's motor. This allows chillers to work efficiently and to the compressor's capacity. Variable Frequency Drive is a technology that provides chillers with exceptional part load and seasonal efficiency. It also offers a great solution for energy conservation.
- Start current lower
VFDs usually have a lower starting current than other starters. An Inverter may help to reduce this. At full load, the inrush current is not greater than the currant. This feature can help reduce electrical installation costs. It also allows for the highest possible inrush current to be available when local institutions are provided.
- Regulations compliance
Inverter-driven compressors can make heat pumps and chillers extremely efficient, which can lead to a steady reduction in operating costs. This is important because it aligns with the EU Eco-design Directive and recent European regulations on HVAC equipment performance. The EU Energy Performance Buildings Directive (EU EPBD), is making the Inverter technology more important.
- Green Building
VFD in heating or cooling equipment is an important consideration. It is also recommended when reviewing Green Building projects under the protocols BREEAM or LEED.
- Daikin refrigerant-cooled Inverter
Daikin Applied UK is a global leader in Inverter technology. It is available for screw, scroll, and centrifugal compressors. Since 2004, Daikin has been combining its Single Screw compressors and air-cooled Inverter technology. Daikin introduced the refrigerant cooled Inverter in 2013 for Screw Compressors. This is available since 2019. It is integrated directly into the compressor's body, making it different from other VFD types. This allows the Inverter's electronics to be cooled using the refrigerant in its circuit.