Page 542 - General Catalogue

EWAD-T-XSB/XLB

Air cooled screw chiller,

high efficiency,
standard/low sound

› Low operating cost and extended operating life thanks to the
careful design aimed to optimize the energy efficiency of the
chillers and to improve installation profitability, effectiveness and
economical management
› Advanced compressor and fans design that operate at very low
sound levels
› 2 or 3 independent refrigerant circuits for outstanding reliability
and maximum safety for maintenance
› Extremely wide range from 290kW to over 2 MW
› Optimised for use with R-134a
› Large operation range (ambient temperature down to -18°C)
› Units with stepless regulation offer the benefit of following
the system energy demand at any time with high efficiency if
compared to the units with step regulation. Each unit has infinitely
variable capacity control from 100% down to 12,5%
› The Microchannel technology maximizes the heat exchange
ensuring the highest performance with the minimum surface for
the exchanger and a reduced quantity of refrigerant compared to
Cu/Al condenser.
› MicroTech III controller with superior control logic and easy
interface

Cooling Only EWAD-T-XSB/XLB 350 380 400 420 440 490 540 570 730 820 950 C10 H10 H11 C13 H13 C14
Space cooling A Condition 35°C Pdc kW 351.5 376.9 398.3 415.2 437.9 491.7 541.2 564.8 725.4 831.9 943.5 1,008.0 1,077.0 1,164.0 1,308.0 1,390.0 1,454.0
ηs,c % 154.6 155.1 162.1 161.2 161.1 168.0 171.7 168.0 167.1 164.5 169.6 166.3 166.7 167.1 166.7 164.7
SEER 3.9 4.0 4.1 4.3 4.4 4.3 4.2 4.3 4.2 4.3 4.2
Cooling capacity Nom. kW 351.5 376.9 398.3 415.2 437.9 491.7 541.2 564.8 725.4 831.9 943.5 1,008 1,077 1,164 1,308 1,390 1,454
Power input Cooling Nom. kW 106.1 114.9 121.4 128.8 138.5 159.1 166.6 177.8 234.6 267.5 299.3 333.1 347.2 374.7 421.1 447.1 481.7
Capacity control Method Fixed
Minimum capacity % 12.5
EER 3.314 3.28 3.224 3.163 3.091 3.248 3.177 3.092 3.11 3.152 3.027 3.103 3.108 3.107 3.109 3.019
ESEER 4.01 3.98 4.15 3.97 3.96 4.11 4.13 4.05 3.94 3.95 4.05 3.95 3.89 3.88 3.95 3.94 3.87
IPLV 4.6 4.55 4.76 4.61 4.57 5.46 5.49 5.3 4.93 4.65 5.17 4.69 4.63 4.66 4.64 4.68 4.63
Dimensions Unit Height mm 2,537
Width mm 2,258 2,282
Depth mm 4,130 5,030 5,878 5,976 7,776 8,676 9,576 10,476
Weight Unit kg 4,054 4,064 4,360 4,860 5,397 5,387 5,315 5,525 6,121 7,798 8,126 8,386 8,751 8,765
Operation weight kg 4,224 4,234 4,530 5,030 5,567 5,557 5,604 5,825 6,451 8,259 8,587 8,878 9,232 9,235
Water heat Type Shell and tube
exchanger Water volume l 134 129 170 164 170 289 300 330 461 492 481 470
Water flow rate Cooling Nom. l/s 16.8 18 19 19.8 20.9 23.5 25.9 27 34.7 39.8 45.1 48.3 51.6 55.8 62.6 66.5 69.6
Water pressure drop Cooling Nom. kPa 20.1 26.3 25.1 19.3 21.1 42.7 34.1 33.4 33 36.8 40.8 46 51.9 60.5 36.2 40.4 50.8
Air heat exchanger Type Microchannel
Compressor Type Driven vapour compression
Quantity 2
Fan Type Direct propeller, on/off fans
Quantity 8 10 12 16 18 20 22
Air flow rate Nom. l/s 44,172 55,214 66,257 88,343 99,386 110,429 121,472
Speed rpm 900
Sound power level (XSB) Cooling Nom. dBA 98 101 99 100 101
Sound power level (XLB) Cooling Nom. dBA 95 97 98 99
Sound pressure level (XSB) Cooling Nom. dBA 78 81 82 81 82 81 82
Sound pressure level (XLB) Cooling Nom. dBA 75 77 79 80 79 80 79 80 79
Operation range Air side Cooling Min.~Max. °CDB -18~53
Water side Cooling Min.~Max. °CDB -8~18
Refrigerant Type/GWP R-134a/1,430
Charge kg 52 54 65 66 72 93.6 124.8 140.4 156 171.6
Circuits Quantity 2
Refrigerant charge Per circuit TCO2Eq 37.18 38.61 46.48 47.19 51.48 66.92 89.23 100.39 111.54 122.69
Piping connections Evaporator water inlet/outlet (OD) 139.7mm 6” 8"
Unit Starting current Max A 253 296 311 399 422 475 493 574 645 703 705 778 802 883 931 939
Running Cooling Nom. A 174.38 97.83 114.97 114.79 129.16 147.79 141.98 158.14 372.87 424.09 471.71 521 546.1 584.5 662.5 699.2 749.6
current Max A 248 260 277 299 322.00 351 378 401 492 536 626 680 719 778 848 907 961
Power supply Phase/Frequency/Voltage Hz/V 3~/50/400

540