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Air Suspension Variable Frequency Centrifugal Chiller

The OBAIR air-suspended water chiller uses a centrifugal compressor supported by air bearings, eliminating metal friction for energy-efficient, quiet operation comparable to magnetic suspension units without complex magnetic systems. Its heat exchangers feature advanced domestic condenser and evaporator tubes, optimized for maximum heat transfer. The unit is controlled by renowned brand PLCs and sensors, with key parameters monitored to ensure long-term high efficiency and safety. It is widely used in supermarkets, subways, medical facilities, cultural venues, and new energy applications.

Model: HJOU
Cooling capacity: 318-3180kW
Refrigerant type: R134a

Advantage

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Air Suspension Compressor

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High-Efficiency Evaporator

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Electronic Expansion Valve

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Plate-Type Economical Device

Technical Parameter

Air suspension compressor
High-Efficiency Evaporator
Electronic Expansion Valve
Plate-type Economical Device
Machine Control Box
High-efficiency Condenser
Product Features A
Product Features B
Product Features C
Product Features D
Product Features E
Product Features F
Product Features G

Air suspension compressortheme

No oil circuit system
Zero friction operation

High-Efficiency Evaporatortheme

High-performance heat transfer tubes.
Oil-free centrifugal machine dedicated pipe layout design.

Electronic Expansion Valvetheme

Liquid level meter + electronic expansion valve.
Precise refrigerant flow control.

Plate-type Economical Devicetheme

High efficiency and energy saving.
Maximum increase in cooling efficiency by 10%.

Machine Control Boxtheme

Control box low voltage power supply.
Safer operation.

High-efficiency Condensertheme

High-performance heat transfer tubes.
Built-in subcooling zone design.

Product Featurestheme

Double first - level energy efficiency according to national standards for the unit
Adopting a high - efficiency and easy - to - maintain single - stage inverter. Through liquid - level control technology and double - pass exhaust gas over the heat exchanger, the compressor operates at the optimal speed throughout the entire working range, while maintaining the highest efficiency of the heat exchanger, achieving better IPLV. The unit meets the national double first - level energy efficiency standards, that is, it has the dual high - efficiency advantages of COP/IPLV, which can significantly reduce the operation costs of the system in the later stage.

Product Featurestheme

Ultra - high - precision dynamic pressure air - floating bearings
The unique multi - support fin - type dynamic pressure air - floating bearings can achieve a start - stop life of 300,000 times and a load - increase and decrease life of 1,000,000 times.

Product Featurestheme

Oil - free design, reduced efficiency degradation
Traditional chiller units use lubricating oil, which forms an oil film on the surface of the heat exchanger and hinders heat transfer, resulting in an increase in the power consumption of the water chiller. The air - suspension unit operates without oil, and there is almost no efficiency degradation during the operation process.

Product Featurestheme

Zero friction, low noise
Noise is an important factor in evaluating the impact of chiller units on the environment. Due to the use of air - suspension bearings, when the compressor is running, the moving parts are completely suspended, with zero friction. The operating noise can be as low as 72dB(A), which is much quieter than traditional screw units, with a noise reduction of 10 - 15dB(A).

Product Featurestheme

Efficient heat transfer design of the condenser
The condenser heat exchange tube adopts a pin - fin design. The fin - shaped outer surface of the tube effectively disrupts the formation of the condensation liquid film, making the heat transfer more efficient and reducing heat resistance. With the dedicated air - distribution design for the oil - free system and by adjusting the distance and position of the condenser tubes, the condensation heat exchange effect is enhanced.

Product Featurestheme

Dedicated air - distribution for the oil - free system of the evaporator
Flooded type (standard): The heat exchanger is fully immersed in the refrigerant, ensuring that the inner media of all heat exchange tubes are evenly evaporated. At the same time, with the dedicated air - distribution technology for the oil - free system and the optimized design of the liquid distributor structure, the layout of the tubes and their distance and position can be optimized to further improve the heat exchange efficiency. The falling - film evaporation mode can also be selected.

Product Featurestheme

Intelligent control system
The control center is composed of a 10 - inch color liquid - crystal touch - display screen, which improves the convenience of identification, and the operation is simple and fast.
It centrally displays the simple process of the unit and various operation information. It centrally controls various settings and statuses of the unit.
Three - level access rights are set according to the different needs of factory settings, customer maintenance, and user use.

Business Contact

If you have any questions about OBAIR products, please contact us.