The water-cooled screw variable frequency chiller unit launched by our company is a more efficient industrial grade variable frequency unit. It not only inherits the high efficiency quality of the original fixed frequency, but also incorporates advanced variable frequency technology. It adopts internationally renowned brand variable frequency converters, greatly improving the energy efficiency of the unit at partial load and achieving full load energy efficiency（COP）And the comprehensive partial load performance coefficient（IPLV）Double efficient high-end screw unit, with positive and negative precision in controlling the outlet temperature0.5Within a certain temperature range, it is widely used in the field of precise temperature control of process cold water, improving product quality and meeting high-precision water temperature requirements.

Main characteristics of cold screw variable frequency chiller

◆ Efficient and energy-saving

By adopting world-class airborne variable frequency drive technology, the energy efficiency of the unit's partial load has been greatly improved, with the highest comprehensive partial load performance coefficient（IPLV）Reachable10about.

◆ Stable and reliable

Single compressor structure with fewer moving parts, the compressor rotor is directly connected to the motor, reducing the number of operating components and further improving the reliability of the compressor; Refrigerant suction cooling motor, with lower operating temperature and more stable operation.

◆ Easy to install

The variable frequency starting cabinet of the water-cooled screw variable frequency chiller unit is integrated into the main unit, simplifying on-site wiring for users; Inject refrigerant and lubricating oil before leaving the factory to facilitate unit installation and save users' installation and commissioning costs.

◆ Advantages of frequency conversion

Variable frequency water-cooled screw chiller soft start reduces the impact of starting current; Equipped with a DC reactor to minimize harmonic interference to the greatest extent possible; There is also a low harmonic filter option that meets the input power requirements of the frequency converterIEEE-519Standardize harmonic distortion, while also having harmonic filter over temperature protection and capacitor switching functions,.

◆ environmentally friendly

Water cooled screw variable frequency chiller units can be equipped according to requirementsR134aRefrigerant, which has no destructive effect on the Earth's ozone layer and meets the requirements of the Montreal Protocol; The unique falling film evaporator can reduce the refrigerant charge.

◆ Advanced Control

The latest generation SiemensPLCController, precise control of the unit, ensuring efficient and reasonable operation, equipped with remote monitoring interface, dynamic color touch screen, graphical operation, improving user experience.

◆ Accurate temperature control

Positive and negative precision of chilled water outlet temperature control0.5Within the specified temperature range, it meets the requirements of high-precision temperature control.

◆ Multiple energy-saving advantages

The advantages of variable frequency energy saving, evaporator full liquid energy saving, and industrial low-temperature application energy saving.

In short, the water-cooled screw variable frequency chiller launched by the company is mainly used in the industrial field, adopting industrial grade variable frequency design, meeting the energy-saving, precise temperature control, and low-temperature variable frequency chiller with low chilled water temperature in the industrial field.