Oil-free centrifugal chiller

LG oil-free chiller reduces operating costs and increases energy efficiency with a simplified piping structure. Experience a convenient and efficient chiller system featuring the two exclusive magnetic and air bearing technology.


Improved part load efficiency

It is possible to precisely control up to 0.1Hz by adjusting the number of rotations through frequency control according to the load. Precision control improves the part load efficiency by 51% compared to the two-stage model running at a fixed speed, saving energy and cost.

*25% part load, based on 500RT unit in ARHI condition.

Magnetic bearing

The non-contacting magnetic bearing technology has improved lubrication loss and enhanced energy efficiency. moreover, online UPS is installed to provide emergency power during sudden blackouts in order to maintain the rotation of rotary shaft and protect bearing to operate stably.

Air bearing


LG’s exclusive air bearing technology reduces friction loss and improves overall efficiency. because it is technologically advanced, air bearing technology is applied in various industries such as industrial and aircraft applications.


Simplified piping

Oil-free chiller has simplified the piping structure by eliminating oil-related parts. There is no need to replace oil or filters, so users can save time and money at the same time.



By simplifying the structure of compressor and eliminating the cause of the noise, it can be applied to areas requiring low vibration and low noise by reducing noise up to 73dB(A).

*The above level indicate the noise values under the optimum operating conditions and may vary depending on the operating and environmental conditions.


Optimized central control

Control solutions such as ACP and AC smart enable easy monitoring and allow remote control to manage various HVAC models at anywhere.


Oil-free chiller line up

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