Water cooler M-G(F/X)VG Series

The Hitachi M-VG series is a centrifugal chiller that uses a Permanent Magnetic Synchronous Motor (PMSM) to directly drive the compressor impeller. Direct-drive chillers are more efficient, reliable, and require less maintenance than traditional chillers due to no gears or belts in the power transmission. Direct-drive chillers typically incorporate advanced controls and monitoring systems, which allow precise cooling process control. PMSM can lead to energy savings and increased efficiency, particularly in large commercial or industrial applications. VSD compressors: higher efficiency and less maintenance The M-VG series features high-speed VSD (variable speed drive) compressors with high-speed permanent magnetic synchronous motors, single shaft direct-drive bearings, and two-stage impeller technology. Together, they minimize mechanical loss and enhance the efficiency and reliability of the chiller. High-speed VSD compressors' advantages over ordinary compressors include higher efficiency and power density, with a more manageable system construction. This leads to a reduced footprint and weight rate of up to 40%. Vulnerable and consumable parts are reduced by up to 66%, resulting in less maintenance and quieter operation of the chillers. High-speed Permanent Magnetic Synchronous Motor Hitachi has independently developed a high-speed permanent magnet synchronous motor (PMSM), specifically designed for centrifugal compressors. This motor boasts a power range of 250kW to 560kW and a rotational speed range of 8500rpm to 13085rpm.