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Variable frequency screw chiller

Classification:

Water cooled refrigerating unit

key word:

Frequency conversion

water flow

The necessity of frequency conversion chiller

Inquiry

Detailed introduction

• Necessity of frequency conversion chiller --

• Because the outdoor temperature (dry bulb/wet bulb temperature) varies with time and season

• Only 1% of the operating time of the refrigeration unit is in full load operation under the design condition

• Frequency conversion chiller can make full use of the advantages brought by low cooling water temperature (low head - speed reduction - energy consumption reduction)

• York YVWH variable frequency screw chiller is fully factory assembled, including evaporator, condenser, compressor, motor, lubrication system, LCD microcomputer control center and complete unit, all nozzles and wiring, and provides the first charge of refrigerant and lubricating oil for each unit.

• High efficiency and energy saving: The partial load efficiency (IPLV or NPLV) of YVWA is 30% higher than that of conventional chiller units, which can significantly reduce the operating energy consumption and effectively shorten the return on investment of the project.

• Environmental refrigerant, benefit mankind: YVWA adopts HFC-134a environmental refrigerant, and through the application of mixed falling film evaporator, greatly reduce the refrigerant charging amount; The efficient YVWA series unit indirectly reduces the CO2 emission of the power plant and reduces the impact on the atmospheric environment by reducing the power consumption. Help you achieve LEED certification.

• Wide application: YVWA unit can adopt cooling tower, evaporative condenser, dry cooler and other cooling methods, widely suitable for ice storage, heat recovery, heat pump and other applications, can meet the various needs of customers.

• High efficiency heat transfer, excellent performance: new hybrid falling film evaporator and high efficiency heat transfer copper tube to improve efficiency; Water side and refrigerant side strengthen heat transfer, reduce unit energy consumption and pipe scaling.

• Excellent electrical characteristics: The YVWA variable frequency compressor provides a soft start without current shock. The unit's starting current never exceeds its nominal current value at full load, which reduces the customer's power package cost. The motor does not overheat during startup and can be quickly restarted in the event of a power failure shutdown.

Model number	kW	Input power	Full load current	Evaporator	condenser	Size
Model number	kW	Input power	Full load current	Water flow l/s	Water flow l/s	Long mm	Width mm	High mm
YVWABDBCFXJEASIASA	521	99	158	24.9	31.1	3002	1413	1846
YVWABDBBGXJEASIASA	596	117	187	28.5	35.6	3002	1413	1846
YVWACBCBGXJEASIASA	642	121	194	30.7	38.3	3612	1413	1846
YVWACDCBGXJEASIASA	689	131	209	32.9	41.2	3612	1413	1846
YVWAM2M3EEAEASIASA	778	153	244	37.2	46.4	4274	1405	1835
YVWAMBMCEEAEASIASA	819	147	235	39.1	48.9	4274	1405	1835
YVWAM3M3EEAEASIASA	823	162	258	39.3	49.2