764 Water cooled centrifugal chiller, high efficiency, standard sound J No friction loss, no oil contamination, no additional oil management systems and an increased equipment life thanks to the magnetic bearing technology J Excellent part load efficiency J Totally oil-free operation resulting in reduced maintenance costs and increased reliability J Compact footprint through stacked heat exchanger lay-out J Increased installation flexibility thanks to limited dimensions J Easy handling: thanks to its compact size, it can easily pass through the doorway J MicroTech 4 controller with superior control logic and easy interface J A wide portfolio of options is available to meet different requirements. J The compressor vibration levels are extremely low as a result of the high-speed design J Optimized for highly efficient R134a refrigerant and compatible with next generation refrigerants EWWD-DZXS EWWD-DZ EWWD-DZXS Cooling Only EWWD-DZXS 320 440 530 610 640 700 880 C10 C13 C14 C15 C21 Space cooling A Condition (35°C - 27/19) Pdc kW 320.01 443.01 528 610.02 638.01 699.97 883.01 1,056 1,325.26 1,402 1,564.57 2,070.42 ηs,c % 334 314 324 344 349 342 350 363 349.8 362 360.6 365.4 SEER 8.72 8.65 9.08 8.91 8.95 8.79 8.99 9.31 8.86 9.32 9.13 9.28 Cooling capacity Nom. kW 320 443 528 610 638 700 883 1,056 1,325 1,402 1,565 2,070 Power input Cooling Nom. kW 66.5 88.5 102 124.7 131 126 176 205 272 256 310 391 Capacity control Method Variable Minimum capacity % 30 21 16 15 18 11 7 9 8 6 EER 4.81 5 5.14 4.89 4.85 5.53 5.01 5.15 4.88 5.46 5.04 5.3 ESEER 7.94 7.92 8.2 7.78 8.16 8.08 8.09 8.39 - 8.29 - IPLV 9.38 9.33 9.7 9.41 9.5 9.86 9.52 9.91 9.18 10.1 9.5 9.42 Dimensions Unit Height mm 1,865 1,985 2,200 2,083 2,200 2,225 2,290 Width mm 1,055 1,160 1,270 1,510 1,270 1,510 Length mm 3,625 3,585 3,580 4,793 3,580 4,768 4,812 Weight Unit kg 1,700 1,900 2,000 2,850 2,600 2,900 3,600 4,350 3,800 4,750 5,500 Operation weight kg 1,973 2,216 2,347 3,197 3,344 3,102 3,458 4,292 5,020 4,579 5,540 6,570 Water heat exchanger - evaporator Type Flooded shell and tube Water volume l 70 96 107 134 156 199 271.8 229 317.4 444.3 Water flow rate Nom. l/s 15.3 21.2 25.3 29.1 30.5 33.5 42.3 50.6 - 67.2 - Cooling Nom. l/s - 63.4 - 74.9 99.1 Water pressure drop Cooling Nom. kPa 47.4 40.6 45 59.1 51 61.3 64 60.4 60.1 74 61.1 71.9 Water heat exchanger - condenser Type Shell and tube Flooded Shell & Tube Shell and tube Flooded Shell & Tube Water volume l 83 100 120 170 188 211 263 359.9 320 442.6 603.6 Water flow rate Nom. l/s 18.3 25.3 30.1 35.1 36.7 39.4 50.5 60.1 - 79.1 - Cooling Nom. l/s - 76.1 - 89.5 117 Water pressure drop Cooling Nom. kPa 49.2 59.5 54.5 74 46.2 41.6 50.9 50.3 56 52.9 43 57 Compressor Type Driven vapour compressor Quantity 1 2 1 2 3 2 3 Sound power level Cooling Nom. dBA 87.9 88.9 89.9 91.1 91 91.1 92 93.3 99 94.3 100 101 Sound pressure level Cooling Nom. dBA 69.6 70.6 71.6 72.6 73.6 74.6 80 75.6 81 82 Operation range Evaporator Cooling Min.~Max. °CDB 4~20 Condenser Cooling Min.~Max. °CDB 20~55 20~42 20~55 20~42 20~55 20~42 20~55 20~42 Refrigerant Type/GWP R-134a/1,430 Charge kg 120 180 230 320 230 340 390 Circuits Quantity 1 Refrigerant charge TCO2Eq 172 257 329 - 329 - Piping connections mm 139.7 168.3 219.1 Piping connections mm 139.7 168.3 219.1 Unit Running current Cooling Nom. A 100.55 138.22 155.23 203.41 200.56 190.23 274.86 309.17 445 383.87 471.7 588 Max A 134 208 166 267 196 417 331 631 392 511 589 Power supply Phase/Frequency/Voltage Hz/V 3~/50/400 Performances according to CSS software 10.27 Microtech 4 Centrifugal compressor
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