Page 534 - General Catalogue

EWAH-TZPSB/PLB

Air cooled screw inverter chiller,

premium efficiency,
standard/low sound

› Premium energy efficiency both at full and part load conditions
› Inverter stepless single-screw compressor with DC electrical
motor
› Advanced compressor technology featuring integrated inverter
and variable volume ratio (VVR)
› HFO R-1234ze(E) Refrigerant with Ozone Depletion Potential equal
to zero and extremely low Global Warming Potential
› Compact design for small footprint and minimized installation
space
› Low operating sound levels are achieved by the latest compressor
and fan design
› One or two truly independent refrigerant circuits for outstanding
reliability
› Continuous fans speed modulation with EC fans for even higher
part load efficiency

Cooling Only EWAH-TZPSB/PLB 370 440 530 610
Space cooling A Condition 35°C Pdc kW 371.15 435.24 532.06 606.43
ηs,c % 206.56 213.68 220.48 224.96
SEER 5.239 5.417 5.587 5.699
Cooling capacity Nom. kW 371 435 532 606
Power input Cooling Nom. kW 102 121 137 163
Capacity control Method Variable
Minimum capacity % 16.7 14.3 11.7 10
EER 3.62 3.58 3.86 3.7
ESEER 5.18 5.46 5.23 5.34
IPLV 6.15 6.35 6.36 6.35
Dimensions Unit Height mm 2,537
Width mm 2,258
Depth mm 7,683 9,483 7,683 8,583
Weight Unit kg 5,741.4 6,722 6,364.8 7,140.2
Operation weight kg 5,982.4 7,023 6,656.8 7,636.2
Water heat exchanger Type Shell and tube
Water volume l 241 301 292 496
Water flow rate Cooling Nom. l/s 17.7 20.8 25.4 29
Water pressure drop Cooling Nom. kPa 24.4 15 15.3 18
Air heat exchanger Type Microchannel
Compressor Type Screw inverter
Quantity 2
Fan Type Direct propeller
Quantity 16 20 16 18
Air flow rate Nom. l/s 251,251.0 314,064 251,251.0 282,658.0
Speed rpm 760
Sound power level (PSB) Cooling Nom. dBA 100.3 100.8 103.24 104.21
Sound power level (PLB) Cooling Nom. dBA 95.48 96 98.71 99.63
Sound pressure level (PSB) Cooling Nom. dBA 78.80 81.80 82.40
Sound pressure level (PLB) Cooling Nom. dBA 74.03 73.96 77.25 77.86
Operation range Air side Cooling Min.~Max. °CDB -18~55
Water side Cooling Min.~Max. °CDB -8~18
Refrigerant Type/GWP R-1234(ze)/7
Circuits Quantity 2
Refrigerant circuit Charge kg 90.4 113 116.8 131.2
Refrigerant charge Per circuit kg 316.4 395.5 408.8 459.2
Piping connections Evaporator water inlet/outlet (OD) 168.3mm 219.1mm
Unit Running Cooling Nom. A 175.85 205.4 233.82 272.98
current Max A 272 319 350 424
Power supply Phase/Frequency/Voltage Hz/V 3~/50/400
532