720 Dual compressor & dual circuit unit 1,170kW - 2,070kW with R134a or R513A 865kW - 1,540kW with R1234ze of everything: 2 compressors, 2 expansion valves, 2 condensers,... The VZ chiller series was developed and manufactured to meet the growing market demand for highly efficient chillers. Thanks to continuous advancements in component technology, we are the first to achieve the highest levels of chiller efficiency and innovation. TOP CLASS EFFICIENCY EWW(H)(D)(S)-VZ at a glance Single compressor 440kW - 1,050kW with R134a or R513A 330kW – 790kW with R1234ze Full inverter water cooled chiller Highest efficiency in the market in its category Unique Daikin single screw compressor technology High efficient flooded heat exchangers New condenser design with integral oil separator Performance monitoring With MT4, advanced algorithm implementation in the unit controller are possible, such as the Performance Monitoring (Option 186). This sensor-less algorithm The highest peak in chiller technology calculates the unit cooling capacity by using refrigerant pressure and temperature readings. Electrical power is calculated either from compressor VFD power and fan, or directly measured through optional energy meter. As a standard(*), no extra-hardware is required. (*) For TZ-B units an additional sub-cooling temperature sensor is required.
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