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iZαⅡSeries Specifications

Water-cooled Standard Specifications (-30°C to -65°C)

Unit type
Item
iZα30WⅡ iZα40WⅡ iZα50WⅡ iZα70WⅡ iZα80WⅡ iZα90WⅡ iZα110WⅡ
Frequency 50/60Hz
Legal ton of refrigeration (JRT) 7.07 9.90 12.17 12.22 15.37 16.95 20.47
Refrigerant R404A
Power source Motor: 200/220/380/400/415/440/460/480, 3 phase. 50/60Hz, Control circuit: 200 to 230V, 1 phase, 50/60Hz
Number of compressors 1 Unit
Capacity control *1*2*3 Continuous control mode or step control mode (3 steps: 50%, 75% and 100%)
Motor Nominal output kW 18 24 30 37 45 55 65
Type Water-cooled semi-hermetic; 4-pole; 3-phase induction type
Starting method Inverter
Condenser Type Horizontal shell and tube (serving also as a receiver)
Receiver capacity 35 35 35 58 161 76 76
Refrigerant spatial volume *4 91 91 89 145 231 220 220
Connections Refrigerant gas inlet 50A 50A 50A 80A 80A 80A 100A
Refrigerant liquid outlet 19.05mm 25.4mm 25.4mm 31.8mm 31.8mm 31.8mm 34.9mm
Cooling water inlet/outlet Condenser Rc2 Rc2 Rc2 Rc3 Rc3 Rc3 Rc3
Oil cooler Oil coolerless specification Rc1 Rc1 Rc1 Rc1
Motor Rc1 Rc1 Rc1 Rc1 Rc1 Rc1 Rc1
Lubricating oil *5 10 10 13 14 21 22 29
Noise dB(A)*6 71 73 75 75 75 79 78
Dimensions
W x D x H mm
1380 x
1110 x
1320
1380 x
1110 x
1320
1405 x
1150 x
1365
1675 x
1200 x
1425
2490 x
1265 x
1525
2485 x
1260 x
1555
2485 x
1290 x
1560
Weight kg 825 840 885 1245 1460 1485 1825
Unit type
Item
iZα140WⅡ iZα160WⅡ iZα180WⅡ iZα220WⅡ iZα280WⅡ iZα320WⅡ
Frequency 50/60Hz
Legal ton of refrigeration (JRT) 24.90 29.34 33.90 40.94 49.80 58.68
Refrigerant R404A
Power source Motor: 200/220/380/400/415/440/460/480, 3 phase, 50/60Hz, Control circuit: 200 - 230V, 1 phase, 50/60Hz
Number of compressors 1 Unit 2 Units
Capacity control *1*2*3 Continuous control mode or step control mode (3 steps: 50%, 75% and 100%)
Motor Nominal output kW 75 90 55 x 2 65 x 2 75 x 2 90 x 2
Type Water-cooled semi-hermetic; 4-pole; 3-phase induction type
Starting method Inverter
Condenser Type Horizontal shell and tube (serving also as a receiver)
Receiver capacity 183 183 278 278 398 398
Refrigerant spatial volume *4 278 278 434 434 562 562
Connections Refrigerant gas inlet 100A 100A 80A x 2 100A x 2 100A x 2 100A x 2
Refrigerant liquid outlet 38.1mm 38.1mm 40A 40A 50A 50A
Cooling water inlet/outlet Condenser Rc3 Rc3 Rc4 Rc4 150A 150A
Oil cooler Rc1 Rc1 Rc1 x 2 Rc1 x 2 Rc1 x 2 Rc1 x 2
Motor Rc1 Rc1 Rc1 x 2 Rc1 x 2 Rc1 x 2 Rc1 x 2
Lubricating oil *5 29 53 53 60 84 84
Noise dB(A)*6 79 82 82 81 82 85
Dimensions W x D x H mm 3000 x
1320 x
1720
3000 x
1420 x
1765
3025 x
1970 x
1750
3025 x
2055 x
1790
2960 x
2140 x
1890
2960 x
2140 x
1890
Weight kg 1930 2020 2710 3300 4380 4440

*1: The minimum capacity depends on production range and operation conditions (25%-50%)

*2: Requested to enter proper signal due to selected running mode.

*3: Partial loading value for step control is changeable flexibly.

*4. Condenser spatial volume for refrigerant is calculated by subtracting the volume of the heat exchanger tube from the inside volume of the condenser.

*5: Oil quantity is minimum charge only for condensing unit. Actual oil quantity for whole of the plant (system) should be determined at the site referring the oil level of sight glasses during compressor running. Charge oil on site and replenish when the level gets lower than requested. Use specified refrigerant machine oil (Oil is requested users to supply)

*6: Noise level (scale A) indicates the values measured at 1meter away from the compressor and 1meter above from the floor level when the suction pressure saturated temperature is -40°Cwithout any echo influence. In the actual installed conditions the noise level maybe different from indicated value because of the influence of surrounding noise and echo.

* : Hot gas defrost model is available optionally.

* : When suction pressure saturated temperature is required below -50°Cmodification for ultra low temperature with cost up is needed.

* : Noise control and harmonic suppression measurement should be taken as necessary according to respective guidelines.

* : Electric power for control circuit is requested users to supply.

Cooling capacity (kW)

Refrigerant: R404A

Condensing
temperature
°C
Saturated temp. at suction press.
°C
iZα
30WⅡ
iZα
40WⅡ
iZα
50WⅡ
iZα
70WⅡ
iZα
80WⅡ
iZα
90WⅡ
iZα
110WⅡ
iZα
140WⅡ
iZα
160WⅡ
iZα
180WⅡ
iZα
220WⅡ
iZα
280WⅡ
iZα
320WⅡ
35 -30 37.1 53.3 67.1 77.0 97.4 107.9 128.1 159.0 185.6 215.8 256.2 318.0 371.2
-35 34.5 49.2 62.1 71.0 90.0 99.9 118.1 146.7 171.4 199.8 236.2 293.4 342.8
-40 31.3 44.9 56.6 63.3 80.3 89.0 105.5 131.3 153.2 178.0 211.0 262.6 306.4
-45 27.1 39.1 49.3 54.8 69.6 77.0 91.7 113.8 133.1 154.0 183.4 227.6 266.2
-50 22.5 32.8 41.1 45.9 58.5 64.6 77.2 96.3 112.1 129.2 154.4 192.6 224.2
-55 18.3 27.3 34.3 37.5 47.7 52.7 63.4 79.0 92.0 105.4 126.8 158.0 184.0
-60 14.3 21.9 27.3 29.9 38.0 42.0 51.1 63.6 74.2 84.0 102.2 127.2 148.4
-65 10.9 17.2 21.7 23.2 29.6 32.3 40.2 50.1 57.7 64.6 80.4 100.2 115.4
40 -30 36.5 52.6 66.2 75.8 96.2 106.4 126.1 156.3 182.7 212.8 252.2 312.6 365.4
-35 33.9 48.5 61.1 69.9 88.7 98.3 116.2 144.5 169.0 196.6 232.4 289.0 338.0
-40 30.5 43.7 55.1 61.6 78.2 86.6 102.8 127.8 149.5 173.2 205.6 255.6 299.0
-45 26.3 38.0 47.9 53.2 67.6 74.8 89.2 110.8 129.6 149.6 178.4 221.6 259.2
-50 21.9 31.9 39.9 44.6 56.7 62.7 75.3 93.5 109.1 125.4 150.6 187.0 218.2
-55 17.7 26.4 33.2 36.2 46.2 51.0 61.6 76.6 89.2 102.0 123.2 153.2 178.4
-60 13.8 21.1 26.4 28.9 36.7 40.5 49.5 61.7 71.8 81.0 99.0 123.4 143.6
-65 10.5 16.4 20.7 22.2 28.2 30.9 38.8 48.3 55.6 61.8 77.6 96.6 111.2

* : This is the case for superheat 0°C and economizer middle stage evaporative temperature +10°C (iZα30WⅡ, 40WⅡ, 50WⅡ case is +5°C)

* : Please contact Kobelco in case of using suction pressure saturating temperature is less than -50°C

Power consumption (kW)

Condensing
temperature
°C
Saturated temp. at suction press.
°C
iZα
30WⅡ
iZα
40WⅡ
iZα
50WⅡ
iZα
70WⅡ
iZα
80WⅡ
iZα
90WⅡ
iZα
110WⅡ
iZα
140WⅡ
iZα
160WⅡ
iZα
180WⅡ
iZα
220WⅡ
iZα
280WⅡ
iZα
320WⅡ
35 -30 21.2 28.1 32.9 40.3 50.2 55.3 66.8 82.4 94.9 110.6 133.6 164.8 189.8
-35 22.2 30.2 34.2 41.0 51.2 56.2 68.0 83.8 97.4 112.4 136.0 167.6 194.8
-40 22.3 29.9 35.0 40.5 50.5 55.7 67.9 84.5 98.9 111.4 135.8 169.0 197.8
-45 22.7 30.4 34.8 40.3 50.0 55.4 67.7 83.9 98.5 110.8 135.4 167.8 197.0
-50 22.0 29.0 34.0 38.6 48.6 53.6 66.7 82.5 96.7 107.2 133.4 165.0 193.4
-55 22.2 29.0 34.3 37.2 46.7 51.5 65.6 80.0 93.5 103.0 131.2 160.0 187.0
-60 21.4 27.7 31.7 36.1 45.2 49.8 63.8 77.5 90.3 99.6 127.6 155.0 180.6
-65 21.5 27.7 30.0 34.6 42.8 46.9 61.5 75.2 86.0 93.8 123.0 150.4 172.0
40 -30 22.6 30.3 35.0 43.0 54.1 58.8 69.7 86.0 100.6 117.6 139.4 172.0 201.2
-35 23.8 32.1 36.3 43.9 54.3 59.7 70.7 88.2 102.5 119.4 141.4 176.4 205.0
-40 23.9 31.9 37.1 43.5 53.8 59.1 71.6 89.0 104.4 118.2 143.2 178.0 208.8
-45 24.5 32.7 37.2 43.4 53.2 58.5 71.1 88.2 103.9 117.0 142.2 176.4 207.8
-50 23.7 31.1 36.2 41.5 52.0 57.0 70.3 86.7 101.7 114.0 140.6 173.4 203.4
-55 23.9 31.4 36.7 40.1 49.5 55.1 69.1 83.9 98.2 110.2 138.2 167.8 196.4
-60 23.1 29.6 34.3 38.9 48.3 53.8 67.4 81.8 95.0 107.6 134.8 163.6 190.0
-65 23.2 29.8 32.4 37.4 46.1 50.6 65.0 79.5 91.0 101.2 130.0 159.0 182.0

Air-Cooled Standard Specifications (-30°C to -65°C)

Package-Type

Unit type
Item
iZα30AⅡ iZα40AⅡ iZα50AⅡ iZα70AⅡ iZα90AⅡ
Frequency 50/60Hz
Legal ton of refrigeration (JRT) 7.07 9.90 12.17 12.22 17.0
Refrigerant R404A
Power source Motor: 200/220/380/400/415/440/460/480, 3 phase, 50/60Hz, Control circuit: 200 - 230V, 1 phase, 50/60Hz
Number of compressors 1 Unit
Capacity control *1*2*3 Continuous control mode or step control mode (3 steps: 50%, 75% and 100%)
Motor Nominal output kW 18 24 30 37 55
Type Semi-hermetic; 4-pole; 3-phase induction type
Starting method Inverter
Condenser Type Plate fin tube
Air blower output kW x units 0.4 x 2 0.4 x 3 0.75 x 3 0.2 x 6 0.4 x 6
Receiver capacity 76 109 109 177 235
Lubricating oil
*4
10.0 10 13 13 19
Connections Refrigerant gas inlet 50.8mm 50.8mm 50.8mm 63.5mm 79.4mm
Refrigerant liquid outlet 19.05mm 25.4mm 25.4mm 31.8mm 31.8mm
Installation Outdoor
Noise dB(A)*5 2055 x
1315 x
2255
2865 x
1315 x
2430
2865 x
1315 x
2430
2690 x
1395 x
2705
2690 x
1795 x
2805
Dimensions W x D x H mm 64 65 67 66 70
Weight kg 1400 1635 1700 2025 2330

Separate-type

Unit type
Item
iZα
30ASⅡ
iZα
40ASⅡ
iZα
50ASⅡ
iZα
70ASⅡ
iZα
90ASⅡ
iZα
140ASⅡ
iZα
180ASⅡ
iZα
280ASⅡ
Frequency 50/60Hz
Legal ton of refrigeration (JRT) 7.07 9.90 12.17 12.22 16.95 24.90 33.90 49.80
Refrigerant R404A
Power source Motor: 200/220/380/400/415/440/460/480, 3 phase, 50/60Hz, Control circuit: 200 - 230V, 1 phase, 50/60Hz
Compressor unit Number of compressors 1 Unit 2 Units
Capacity control *1*2*3 Continuous control mode or step control mode (3 steps: 50%, 75% and 100%)
Motor Nominal output kW 18 24 30 37 55 75 55 x 2 75 x 2
Type Semi-hermetic; 4-pole; 3-phase induction type
Starting method Inverter
Receiver capacity 76 109 109 177 265 380 504 599
Lubricating oil
*4
10 10 13 13 19 25 47 75
Connections Refrigerant gas inlet (suction) 50A 50A 50A 80A 80A 100A 80A x 2 100A x 2
Refrigerant liquid outlet (discharge) 25A 25A 32A 32A 40A 50A 65A 80A
Refrigerant liquid inlet (return) 25.4mm 31.8mm 31.8mm 38.1mm 38.1mm 50A 65A 80A
Refrigerant liquid outlet 19.05mm 25.4mm 25.4mm 31.8mm 31.8mm 38.1mm 40A 50A
Installation Indoor
Dimensions
W x D x H mm
1645 x
1080 x
1125
2235 x
1125 x
1245
2235 x
1160 x
1245
2040 x
1195 x
1415
2300 x
1260 x
1415
3105 x
1300 x
1720
2810 x
1970 x
1645
3300 x
2140 x
1855
Noise dB(A)*5 71 73 75 75 79 79 82 82
Weight kg 795 830 895 1055 1170 1560 2210 3280
Condenser
unit
Type x units VACK24 VACK32 VACK40 WACK50 WACK75 WACK50
x 2units
WACK75
x 2units
WACK50
x 4units
Air blower output KW x units 0.4 x 2 0.4 x 3 0.75 x 3 0.2 x 6 0.4 x 6 0.2 x 6
2units
0.4 x 6
2units
0.2 x 6
4units
Installation Outdoor
Dimensions
W x D x H mm
2085 x
875 x
1175
2845 x
875 x
1175
2845 x
875 x
1175
2670 x
1220 x
1080
2670 x
1620 x
1185
2670 x
1220 x
1080
2units
2670 x
1620 x
1185
2units
2670 x
1220 x
1080
4units
Noise dB(A)*5 63 65 66 65 67 68 70 71
Weight kg 250 340 370 500 530 500
2units
530
2units
500
4units

*1: The minimum capacity depends on production range and operation conditions (25%-50%)

*2: Requested to enter proper signal due to selected running mode.

*3: Partial loading value for step control is changeable flexibly.

*4: Oil quantity is minimum charge only for condensing unit. Actual oil quantity for whole of the plant (system) should be determined at the site referring the oil level of sight glasses during compressor running. Charge oil on site and replenish when the level gets lower than requested. Use specified refrigerant machine oil (Oil is requested users to supply)

*5: Noise (scale A) indicates the values measured at 1 meter away from the compressor and 1 meter above from the floor level when the suction pressure saturated temperature is -40°C without any echo influence. In the actual installed conditions the noise level maybe different from indicated value because of the influence of surrounding noise and echo.

* : Compressor designed atmospheric temperature is 32°C

* : Hot gas defrost model is available optionally.

* : When suction pressure saturated temperature is required below -50°C modification for ultra low temperature with cost up is needed.

* : Noise control and harmonic suppression measurement should be taken as necessary according to respective guidelines.

* : Electric power for control circuit is requested users to supply.

Cooling capacity (kW)

Refrigerant: R404A

Ambient
temperature
°C
Saturated temp.
at suction press.
°C
iZα
30AⅡ
iZα
30ASⅡ
iZα
40AⅡ
iZα
40ASⅡ
iZα
50AⅡ
iZα
50ASⅡ
iZα
70AⅡ
iZα
70ASⅡ
iZα
90AⅡ
iZα
90ASⅡ
iZα
140ASⅡ
iZα
180ASⅡ
iZα
280ASⅡ
27 -30 35.7 50.0 62.4 68.1 95.3 140.5 190.6 281.0
-35 32.9 46.3 57.4 64.8 91.0 134.0 182.0 268.0
-40 29.6 41.8 51.9 59.4 83.8 123.4 167.6 246.8
-45 25.7 36.3 44.9 51.5 72.4 107.3 144.8 214.6
-50 21.7 30.7 37.9 43.4 61.0 90.8 122.0 181.6
-55 17.5 24.9 30.8 35.2 49.4 74.2 98.8 148.4
-60 13.9 19.8 24.8 27.9 39.3 59.4 78.6 118.8
-65 11.0 15.6 19.0 21.3 29.6 45.8 59.2 91.6
32 -30 34.2 48.0 59.7 66.1 92.4 135.9 184.8 271.8
-35 32.0 45.0 55.9 62.9 88.1 130.1 176.2 260.2
-40 28.7 40.6 50.3 57.8 81.1 119.9 162.2 239.8
-45 25.0 35.3 43.6 50.1 70.3 104.4 140.6 208.8
-50 21.0 29.6 36.6 42.0 59.0 88.4 118.0 176.8
-55 17.1 24.2 29.9 34.0 47.7 71.9 95.4 143.8
-60 13.5 19.0 23.5 26.3 37.0 56.2 74.0 112.4
-65 10.4 14.7 17.9 19.8 27.6 43.2 55.2 86.4

* : This is the case for superheat 0°C and economizer middle stage evaporative temperature +10°C

* : Please contact Kobelco in case of using suction pressure saturating temperature is less than -50°C

Power consumption (kW)

Ambient
temperature
°C
Saturated temp.
at suction press.
°C
iZα
30AⅡ
iZα
30ASⅡ
iZα
40AⅡ
iZα
40ASⅡ
iZα
50AⅡ
iZα
50ASⅡ
iZα
70AⅡ
iZα
70ASⅡ
iZα
90AⅡ
iZα
90ASⅡ
iZα
140ASⅡ
iZα
180ASⅡ
iZα
280ASⅡ
27 -30 23.8 33.3 38.7 44.1 62.8 89.7 125.6 179.4
-35 23.8 33.3 39.0 45.2 64.4 92.4 128.8 184.8
-40 23.8 33.1 38.9 45.2 64.2 92.8 128.4 185.6
-45 23.3 32.3 38.1 44.2 63.0 90.3 126.0 180.6
-50 22.7 31.5 37.1 42.8 61.0 87.5 122.0 175.0
-55 22.3 31.0 36.0 41.1 58.2 84.6 116.4 169.2
-60 21.8 30.1 34.9 39.0 55.7 80.9 111.4 161.8
-65 20.2 27.8 32.7 37.5 51.8 76.6 103.6 153.2
32 -30 25.3 35.3 41.3 47.7 68.2 97.4 136.4 194.8
-35 25.3 35.4 41.4 49.3 70.2 100.3 140.4 200.6
-40 25.3 35.2 41.3 49.0 69.9 100.3 139.8 200.6
-45 25.2 34.9 41.1 48.2 68.6 98.6 137.2 197.2
-50 24.6 34.1 40.1 46.8 66.2 95.9 132.4 191.8
-55 24.3 33.6 39.6 45.0 63.7 91.9 127.4 183.8
-60 23.7 32.8 38.8 42.9 60.9 87.9 121.8 175.8
-65 22.1 30.5 35.8 41.2 56.6 83.1 113.2 166.2

* : Power consumption of condensing fan in not included.

Contact

Kobe Steel, Ltd.

International Marketing
Refrigeration System & Energy Department
Compressor Division Machinery Business

TEL:+81-3-5739-5343
FAX:+81-3-5739-5345

Inquiry form

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