Page 540 - General Catalogue

EWAD-T-SSB/SLB

Air cooled screw chiller,

standard 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-SSB/SLB 290 330 370 510 520 580 700 800 940 C10 H10 C11 H12 H13 H14
Space cooling A Condition 35°C Pdc kW 290.7 334.5 373.4 505.8 522.7 575.8 701.3 809.9 936.3 999.7 1,051.0 1,135.0 1,268.0 1,352.0 1,456.0
ηs,c % 149.5 149.6 161.6 161.1 164.6 161.9 161.7 161.3 161.6 162.1 161.9 161.5 162.1 161.7
SEER 3.8 4.1 4.2 4.1
Cooling capacity Nom. kW 290.7 334.5 373.4 505.8 522.7 575.8 701.3 809.9 936.3 999.7 1,051 1,135 1,268 1,352 1,456
Power input Cooling Nom. kW 92.73 111.6 120.8 166.6 171 189.6 234.1 266.1 308.3 340.7 362.4 387.9 438.8 464.4 490.7
Capacity control Method Fixed
Minimum capacity % 12.5
EER 3.135 2.996 3.09 3.037 3.057 3.036 2.996 3.043 3.037 2.934 2.903 2.928 2.89 2.913 2.969
ESEER 3.86 3.73 3.74 3.87 3.95 4.05 3.87 3.89 3.82 3.89 3.74 3.77 3.79 3.8
IPLV 4.48 4.38 4.37 4.83 5.38 5.49 4.93 4.55 4.69 4.61 4.41 4.46 4.5 4.53
Dimensions Unit Height mm 2,537
Width mm 2,258 2,282
Depth mm 3,230 4,130 5,030 5,976 6,876 7,776 8,676 9,576
Weight Unit kg 3,061 4,104 4,724 4,860 5,527 5,525 5,858 6,229 6,520 6,780 8,084 8,426
Operation weight kg 3,161 4,274 4,894 5,030 5,825 6,188 6,710 6,981 7,272 8,554 8,887
Water heat Type Shell and tube
exchanger Water volume l 89 181 164 170 164 298 300 330 481 461 492 470 461
Water flow rate Cooling Nom. l/s 13.9 16 17.9 24.2 25 27.6 33.6 38.7 44.8 47.8 50.3 54.3 60.7 64.7 69.8
Water pressure drop Cooling Nom. kPa 28.5 31.1 42 30.5 43.6 60.4 51.4 32.4 39.5 44.7 41.6 32.7 34.2 44.5 61.3
Air heat exchanger Type Microchannel
Compressor Type Driven vapour compression
Quantity 2
Fan Type Direct propeller, on/off fans
Quantity 6 8 10 12 14 16 18 20
Air flow rate Nom. l/s 33,129 44,172 55,214 66,257 77,300 88,343 99,386 110,429
Speed rpm 900
Sound power level (SSB) Cooling Nom. dBA 98 98 101 102 103
Sound power level (SLB) Cooling Nom. dBA 98 94 95 97 96 97 98 97 98
Sound pressure level (SSB) Cooling Nom. dBA 78 81 83 84
Sound pressure level (SLB) Cooling Nom. dBA 78 74 75 77 79 80 79
Operation range Air side Cooling Min.~Max. °CDB -18~50
Water side Cooling Min.~Max. °CDB -8~18
Refrigerant Type/GWP R-134a/1,430
Charge kg 50 55 58 66 67 93.6 109.2 124.8 140.4 156
Circuits Quantity 2
Refrigerant charge Per circuit TCO2Eq 35.75 39.32 41.47 47.19 47.90 66.92 78.08 89.23 100.39 111.54
Piping connections Evaporator water inlet/outlet (OD) 114.3 139.7 6” 8"
Unit Starting current Max A 253 264 306 470 493 574 645 697 705 773 797 877 925 933
Running Cooling Nom. A 76.76 94.25 195.63 144.71 148.11 171.97 370.76 422.34 486.54 534.13 572.46 610 692.46 727.9 763.34
current Max A 211 242 272 345 373 395 492 536 621 675 709 768 838 897 956
Power supply Phase/Frequency/Voltage Hz/V 3~/50/400

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