728 Air to water polyvalent unit J Simultaneous heating and cooling with R-513A refrigerant J VFD regulation & VVR control maintaining power factor always greater than 0.95 J No current spikes at the start-up and the set-point conditions are reached in less than one minute J Two independent refrigerant circuits and Single Screw Compressor technology J Intelligent Chiller Manager (iCM) managing the unit and ensuring the integration of EWYS-4Z into a system with distinct types of units J It is equipped with the cloud-based remote monitoring system Daikin on Site Technical specifications EWYS4004ZXSB2 EWYS4504ZXSB2 EWYS5004ZXSB2 EWYS5504ZXSB2 EWYS6004ZXSB2 EWYS6504ZXSB2 EWYS7004ZXSB2 EWYS8004ZXSB2 Cooling capacity Nom. kW 393.1 440.8 495.2 532.1 584.5 644.4 682.5 765.7 Heating capacity Nom. kW 403.1 442.9 506.1 536.1 588 650.4 680.4 790.3 Capacity control Method Stepless Minimum capacity % 17 15 13 12 11 10 Power input Cooling Nom. kW 135.55 151.48 166.73 189.36 196.80 221.44 221.59 256.09 Heating Nom. kW 126.76 136.28 153.83 163.94 178.72 201.36 201.90 235.91 EER 2.90 2.91 2.97 2.81 2.97 2.91 3.08 2.99 COP 3.18 3.25 3.29 3.27 3.29 3.23 3.37 3.35 SCOP 3.21 3.24 3.4 3.31 3.46 3.3 3.36 3.49 SEER 4.55 4.55 4.85 4.71 4.91 5.01 5.14 5.11 Dimensions Unit Depth mm 5,825 5,825 6,725 6,725 7,625 8,525 8,525 8,525 Height mm 2,465 2,465 2,465 2,465 2,465 2,465 2,465 2,465 Width mm 2,285 2,285 2,285 2,285 2,285 2,285 2,285 2,285 Weight Operation weight kg 6,540 6,560 7,560 7,560 8,935 9,540 10,785 10,820 Unit kg 6,075 6,095 6,870 6,870 7,850 8,435 9,405 9,430 Casing Colour Ivory White Material Galvanized Steel Sheet Water heat exchanger Type Shell & Tubes Water flow rate Cooling Nom. l/s 18.8 21.1 23.7 25.5 28 30.8 32.7 36.6 Heating Nom. l/s 19.4 21.3 24.4 25.8 28.4 31.4 32.8 38.1 Water pressure drop Cooling Nom. kPa 37.6 46 38.6 43.8 43.9 31.5 39.1 33.9 Heating Nom. kPa 38.2 45.2 34.4 38.2 36.1 26.5 31.1 29.9 Water volume l 126 214 369 361 468 Air heat exchanger Type Tube & Fins Fan Quantity 10 12 14 16 Type Brushless Compressor Quantity 2 Type Inverter Screw Oil Charged volume l 28 38 Operation range Water side Evaporator Min. °CDB -8 Max. °CDB 20 Condenser Min. °CDB 30 Max. °CDB 60 Sound power level Cooling Nom. dBA 99 98 99 99 100 102 Sound pressure level Cooling Nom. dBA 78 77 78 79 80 Refrigerant Type R513A GWP 630 631 632 633 634 635 636 637 Charge kg 198 Circuits Quantity 2 Piping connections Evaporator water inlet/outlet (OD) 219.1 Electrical specifications EWYS4004ZXSB2 EWYS4504ZXSB2 EWYS5004ZXSB2 EWYS5504ZXSB2 EWYS6004ZXSB2 EWYS6504ZXSB2 EWYS7004ZXSB2 EWYS8004ZXSB2 Power supply Phase 3 Frequency Hz 50 Voltage V 400 Voltage range Min. % -10 Max. % +10 Unit Starting current Max A 0 Running current Cooling Nom. A 236 272 293 332 343 378 395 454 Max A 335 374 396 451 473 524 550 656 Max unit current for wires sizing A 369 411 436 496 520 576 605 722 Water to water mode EWYS4004ZXSB2 EWYS4504ZXSB2 EWYS5004ZXSB2 EWYS5504ZXSB2 EWYS6004ZXSB2 EWYS6504ZXSB2 EWYS7004ZXSB2 EWYS8004ZXSB2 Cooling capacity Nom. kW 306.9 344.6 386 421.8 469.8 505.7 542.2 621.7 Heating capacity Nom. kW 403.1 442.9 506.1 536.1 588 650.4 680.4 790.3 Power Input kW 98.3 110.9 120.1 132.0 139.4 152.7 160.0 179.2 TEER kW 7.22 7.1 7.43 7.26 7.59 7.57 7.64 7.88 Water heat exchanger Water flow rate Cooling Nom. l/s 18.8 21.1 23.7 25.5 28 30.8 32.7 36.6 Heating Nom. l/s 19.4 21.3 24.4 25.8 28.4 31.4 32.8 38.1 Water pressure drop Cooling Nom. kPa 37.6 46 38.6 43.8 43.9 31.5 39.1 33.9 Heating Nom. kPa 38.2 45.2 34.4 38.2 36.1 26.5 31.1 29.9 Water volume l 126 126 214 214 369 361 468 468 EWYS-4Z
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