H.Stars Variable-frequency Speed Drive Chiller

Variable-frequency Speed Drive Chiller

H.Stars VSD chiller adopts the reinforced air-cooled frequency conversion special compressor has the advantages of stable and reliable operation, high efficiency and energy saving, not easy to wear, low failure rate, long life, good performance, low vibration, strong anti-liquid shock ability, and convenient maintenance.

Variable frequency speed drive chillers have a wide range of applications, and are diversified in product types, including variable-frequency centrifugal chillers, variable-frequency screw chillers, variable-frequency scroll chillers, variable-frequency air conditioning chillers, variable-frequency industrial (integrated) chillers, variable-frequency hot water (high temperature large, scroll) chillers and many others. A variable frequency speed drive chiller not only can save energy by reducing the frequency, but also can configure the unit to work at load other than the maximum one. When the cooling demand is at the maximum level, the frequency will be raised to increase the cooling capacity to fill the demand gap of cooling capacity. 

The most prominent feature of a variable frequency speed drive chiller is the frequency converter that is added to drive the compressor; its starting current is 60% lower than that of the driver of a traditional unit. In addition to compressor control, convertible frequency technology can also be use to control fans, and water pumps among others. 

the maximum level, the frequency will be raised to increase the cooling capacity to fill the demand gap of cooling capacity.  
 
The most prominent feature of a variable frequency speed drive chiller is the frequency converter that is added to drive the compressor; its starting current is 60% lower than that of the driver of a traditional unit. In addition to compressor control, convertible frequency technology can also be use to control fans, and water pumps among others. 
The frequency converter help the unit to achieve stepless load adjustment of 1Hz each time; and its frequency conversion range of 30-130HZ and adaptive control logic enable it to accurately control outlet water temperature to a tolerance of ± 0.3 degrees, making it perfectly suitable for scenario requiring high-precision temperature control.

H.Stars Variable-frequency screw chillers 
The water-cooled variable frequency drive screw chiller uses twin-screw compressor specially designed for frequency conversion, which is completed with proprietarily produced high-efficiency condenser and evaporator, and branded expansion valve. Applications of the chiller: various large and medium-sized industrial and commercial places where air-conditioning and cooling is needed, as well as industrial places for chemical, pharmaceutical, industrial processing, food processing and others. 

Chilled water outlet temperature 5℃ -20℃ ; cooled water temperature range 15 ℃ -40 ℃ . Compressor frequency range: 20Hz-80Hz Compressor rated frequency: 65Hz. Contact the manufacturer if operation at higher frequency is needed.

Note: 
1.Nominal cooling capacity reference: evaporator inlet and outlet water temperature 12℃ /7℃ , condenser inlet and outlet water temperature 30℃ /35℃ ; fouling factor 0.088 ㎡ ·℃ /Kw, Compressor operating frequency 65 Hz; 
2. Chilled water temperature range: 5℃ ~20℃ 
3. Cooling water temperature range: 15℃ ~40℃ ; 
4. Operating frequency range: 20~80 Hz; 
5. Specifications and dimensions will be subject to improvement change without notice. 

For more details, welcome to contact us at sales@hstars.com.cn