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CopelandTM semi-hermetic compressor with compressor electronics technology for R744-transcritical applications Stream series of 4 cylinder CO2 compressors is the ideal solution for R744 medium temperature cascade and booster systems. It is characterized by a design pressure of 135 bar. Refrigerant flow and heat transfer have been optimized for best performance. All compressors are equipped with Copeland compressor electronics technology and offer the possibility to diagnose system- related problems faster or even before they occur. Stream compressor range Copeland Stream Compressors for R744 R744 Cooling Capacity (kw) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Conditions: EN12900 R744: Evaporating -10°C, Gas cooler exit: 35°C/ 90 bar, Superheat: 10K Features and benefits Stream provides for flexibility in pack design and operation: • Compact dimensions • Integrated low pressure relief valve • Discharge Temperature Protection • Service valve 360° rotation for ease of piping design • 2 sight glasses for mounting of oil management control and visual inspection • One oil port for oil equalization in parallel system • Oil splasher system ensuring lubrication at constant and variable speed Designed for durability and performance in R744 applications: • Low sound, low vibration and large discharge chamber to eliminate pulsation • High design pressures of 135 bar (high side) and 90 bar (low side) • Burst pressures in excess of safety factor 3 • Cylinder head and discharge plenum design minimizing heat transfer to suction side • Stepless capacity modulation via inverter from 25 to 70Hz • Copeland compressor electronics technology • Individual compressor power consumption monitoring Operating envelope R744 p2 abs (bar) 120 110 100 90 80 70 60 50 40 -25 -20 -15 -10 -5 0 5 10 15 20 Evaporating temperature (°C) 10K superheat 20K superheat 15 Discharge pressure (bar)PDF Image | CO2 Product Guide 2021
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