SHa Series

Brochure (Fixed Speed Drive Compressor SHα Series)

Features

KOBELCO Screw Refrigeration Compressors Always Leading the Times

As a pioneer of screw refrigeration compressors, KOBELCO has taken the lead in the industrial all along, responding to customer's needs always with innovative ideas and proposals.As the new generational of conventional fixed speed drive model SH series, KOBELCO has developed iZ series in 2002, the world first Integral Two Stage Inverter Drive Freon Screw Compressor condensing units with higher cooling capacity than ever before.This series was followed in 2003 by iZα series of an epoch making non-ozone-depleting compressor condensing unit models using refrigerant R404A.iZαⅡ series is iZα series second generation equipped with "New iZ monitor"

With maximized freezing capacity combined with outstanding energy-saving performance in an unheard-of way, iZα series compressor condensing units are being highly acclaimed by customers.KOBELCO's unique theory and technology (patent acquired) that backed iZ and iZα series have received high praise in various industrial circles, being granted the Technology Award from the Japan Society of Refrigeration and Air Conditioning Engineers and the Japan Machinery Federation's Best Energy-saving Equipment Award.

We pursue untiring efforts towards development of earth-friendly products and continue being all attentions to our customer's voice so that we can offer such safe products that can be used with peace of mind while meeting the diversified needs of customers.

Refrigerant R404A does not deplete the OZONE layer.

Since the production of specified ozone-depleting HCFC-based refrigerants (R22) began to be sharply reduced in 2004 and will be completely banned in 2020, a prompt shift to non-ozone-depleting HFC refrigerants is required for compressor condensing units.With zero ozone depleting potential, R404A is a new, environment-friendly HFC refrigerant.

Refrigerant R404A does not deplete the OZONE layer.

The new HFC refrigerant 404A is similar to the conventional HCFC refrigerant 22 in pressure property and easy to use.

Refrigerant compositio ODP Saturation pressure Toxicity Safety
New
HFC R404A
Blended refrigerant
(Pseudo-azeotropic mixture)
(HFC125: 143a: 134a=44: 52: 4 wt%)
zero 2.3MPa Non-toxic
Conventional
HCFC R22
Non-blended refrigerant
(100 wt%)
0.055 1.9MPa Non-toxic
* The above saturation pressure values are measured at standard condensation temperature of 50°C.

BASIC features of SHα Series

  • Quiet
    Quiet operation achieved by Kobelco's low-noise technology in every possible aspect
  • High Performance
    Operation efficiency maximized by Kobelco's original profile super rotors
  • Reliability
    Continuous operation for 24,000 hours ensured
  • Labor saving
    Labor-saved routine inspections available
  • Compact in size
    Space saving ensured by downsized unit design

Specification

Water-cooled Standard Specifications (-30°C to -60°C)

Unit type
Item
SHα15F SHα22F SFα37F
Frequency 50/60Hz
Legal ton of refrigeration (JRT) 5.33/6.42 8.48/10.21 11.63/14.00
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 50%, 100%
Motor Nominal output kW 15 22 37
Type Water-cooled Semi-hermetic!2-pole!3-phase induction type
Starting method Star-delta
Condenser Type Horizontal shell and tube (serving also as a receiver)
Receiver capacity ℓ 35 49 154
Refrigerant spatial volume ℓ*1 91 117 221
Connections Refrigerant gas inlet 40A 50A 65A
Refrigerant liquid outlet 19.05mm 25.4mm 31.8mm
Cooling water inlet/outlet Condenser Rc2 Rc3 Rc3
Oil cooler Rc1 Rc1 Rc1
Motor Rc1 Rc1 Rc1
Lubricating oil ℓ*2 10 13 21
Noise dB (A)*3 70 72 75
Dimensions
W x D x H mm
1340 x 850 x 1290 1470 x 970 x 1430 2520 x 1050 x 1500
Weight kg 700 900 1200
*1: Water cooled condenser spatial volume is calculated by subtracting the volume of the heat exchanger tube from the inside volume of the condenser.
*2: 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)
*3: Water cooled type noise (scale A) indicates the values measured at 1 meter away from the compressor and 1 meter above from the floor level and air cooled type at 1.5 meter and 1 meter 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.
* : 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.
* : Air cooled compressor designed atmospheric temperature is 32°C
* : Gauges for suction and discharge gas temperature are optional.

Cooling capacity (kW)

Refrigerant: R404A

Condensing temperature
°C
Saturated temp.at suction press.
°C
SHα15F SHα22F SHα37F
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
35 -30 25.3 30.3 43.7 52.4 73.6 88.3
-35 21.3 25.5 36.5 43.8 61.4 73.7
-40 17.8 21.4 30.7 36.9 50.8 61.0
-45 14.8 17.8 25.4 30.5 41.3 49.5
-50 12.0 14.4 20.6 24.7 33.0 39.6
-55 9.5 11.4 16.5 19.8 25.8 31.0
-60 7.2 8.6 12.9 15.5 19.9 23.9
-65 5.3 6.3 9.5 11.4 14.8 17.8
40 -30 24.3 29.2 41.9 50.3 72.1 86.5
-35 20.3 24.4 35.2 42.2 60.1 72.1
-40 17.2 20.6 29.6 35.5 49.5 59.4
-45 14.3 17.1 24.3 29.2 40.2 48.2
-50 11.5 13.8 19.8 23.7 31.8 38.2
-55 9.1 10.9 15.8 19.0 25.0 30.0
-60 6.9 8.3 12.5 15.0 19.1 22.9
-65 4.9 5.9 9.0 10.8 14.1 16.9
* : 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)

Condensing temperature
°C
Saturated temp.at suction press.
°C
SHα15F SHα22F SHα37F
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
35 -30 16.5 19.8 24.3 29.1 37.2 44.6
-35 15.5 18.6 22.8 27.3 34.2 41.0
-40 14.6 17.5 21.3 25.6 31.9 38.3
-45 13.8 16.5 20.1 24.1 29.7 35.6
-50 12.9 15.5 18.8 22.6 27.9 33.5
-55 12.3 14.7 17.8 21.4 26.2 31.4
-60 11.6 13.9 16.9 20.3 24.6 29.5
-65 10.8 13.0 16.0 19.2 23.0 27.6
40 -30 18.0 21.6 26.3 31.6 39.5 47.4
-35 17.0 20.4 24.8 29.8 36.3 43.6
-40 16.1 19.3 23.4 28.1 33.9 40.7
-45 15.2 18.2 22.2 26.6 31.7 38.0
-50 14.3 17.2 20.9 25.1 29.8 35.8
-55 13.5 16.2 19.8 23.7 28.1 33.7
-60 12.8 15.3 18.7 22.4 26.5 31.8
-65 12.1 14.5 17.7 21.2 25.0 30.0

Air-cooled Standard Specifications (-30°C to -60°C)

Package-Type

Unit type
Item
SHα15FA SHα22FA SHα37FA
Frequency 50/60Hz
Legal ton of refrigeration (JRT) 5.33/6.42 8.48/10.21 11.63/14.00
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 50%, 100%
Motor Nominal output kW 15 22 37
Type Semi-hermetic!2-pole!3-phase induction type
Starting method Star-delta
Condenser Type Plate fin tube
Air blower output
kW x units
0.4 x 2 0.4 x 3 0.4 x 6
Receiver capacity ℓ 76 109 198
Lubricating oil ℓ*2 8 12 19
Connections Refrigerant gas inlet 41.28mm 50.8mm 63.5mm
Refrigerant liquid outlet 19.05mm 25.4mm 31.8mm
Installation Outdoor
Dimensions
W x D x H mm
1840 x 1315 x 2255 2650 x 1315 x 2430 2615 x 1800 x 2800
Noise dB (A)*3 64 65 67
Weight kg 1350 1550 2000

Separate-type

Unit type
Item
SHα15FAS SHα22FAS SHα37FAS
Frequency 50/60Hz
Legal ton of refrigeration (JRT) 5.33/6.42 8.48/10.21 11.63/14.00
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
Capacity control 50%, 100%
Motor Nominal output kW 15 22 37
Type Semi-hermetic!2-pole!3-phase induction type
Starting method Star-delta
Receiver capacity ℓ 76 109 198
Lubricating oil ℓ*2 8 12 19
Connections Refrigerant gas inlet (suction) 40A 50A 65A
Refrigerant gas outlet (discharge) 25A 32A 40A
Refrigerant liquid inlet (return) 25.4mm 31.8mm 38.1mm
Refrigerant liquid outlet 19.05mm 25.4mm 31.8mm
Installation Indoor
Dimensions
W x D x H mm
1700 x 850 x 1100 2250 x 950 x 1250 1810 x 1100 x 1480
Noise dB (A) 70 72 75
Weight kg 600 720 960
Condenser
unit
Type x units VACK24 VACK32 WACK75
Air blower output kW x units 0.4 x 2 0.4 x 3 0.4 x 6
Installation Outdoor
Dimensions
W x D x H mm
2085 x 875 x 1175 2845 x 875 x 1175 2670 x 1620 x 1185
Noise dB (A)*3 63 65 67
Weight kg 250 340 530
*1: Water cooled condenser spatial volume is calculated by subtracting the volume of the heat exchanger tube from the inside volume of the condenser.
*2: 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)
*3: Water cooled type noise (scale A) indicates the values measured at 1 meter away from the compressor and 1 meter above from the floor level and air cooled type at 1.5 meter and 1 meter 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.
* : 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.
* : Air cooled compressor designed atmospheric temperature is 32°C
* : Gauges for suction and discharge gas temperature are optional.

Cooling capacity (kW)

Refrigerant: R404A

Condensing temperature
°C
Saturated temp.
at suction press.
°C
SHα15FA
SHα15FAS
SHα22FA
SHα22FAS
SHα37FA
SHα37FAS
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
27 -30 22.7 27.2 39.1 46.9 65.9 79.1
-35 19.2 23.0 32.9 39.5 56.1 67.3
-40 15.8 18.9 27.8 33.3 46.8 56.2
-45 13.0 15.6 22.8 27.4 38.3 45.9
-50 10.3 12.3 18.5 22.2 30.6 36.7
-55 8.0 9.6 14.8 17.7 24.1 28.9
-60 6.2 7.4 11.5 13.8 18.6 22.3
-65 4.6 5.5 8.7 10.4 13.6 16.3
32 -30 22.0 26.4 37.8 45.3 63.6 76.3
-35 18.5 22.2 31.9 38.3 54.2 65.0
-40 15.2 18.2 26.7 32.0 45.3 54.3
-45 12.5 15.0 21.8 26.2 36.8 44.1
-50 9.8 11.8 17.7 21.2 29.4 35.3
-55 7.7 9.2 13.9 16.7 23.0 27.6
-60 5.8 7.0 10.9 13.1 17.4 20.9
-65 4.3 5.2 8.2 9.8 12.8 15.4
* : 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)

Condensing temperature
°C
Saturated temp.
at suction press.
°C
SHα15FA
SHα15FAS
SHα22FA
SHα22FAS
SHα37FA
SHα37FAS
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
27 -30 20.3 24.3 29.0 34.8 41.3 49.5
-35 18.6 22.3 26.6 31.9 38.4 46.1
-40 17.0 20.4 24.4 29.3 35.8 42.9
-45 15.7 18.8 22.5 27.0 33.3 39.9
-50 14.5 17.4 20.8 25.0 30.9 37.1
-55 13.6 16.3 19.4 23.3 28.7 34.4
-60 12.8 15.4 18.3 22.0 26.5 31.8
-65 12.1 14.5 17.1 20.5 24.7 29.6
32 -30 22.1 26.5 31.7 38.0 44.6 53.5
-35 20.3 24.4 29.1 34.9 41.6 49.9
-40 18.8 22.5 26.8 32.2 38.8 46.5
-45 17.3 20.7 24.7 29.6 36.1 43.3
-50 16.0 19.2 22.9 27.5 33.6 40.3
-55 14.9 17.9 21.3 25.6 31.3 37.6
-60 14.1 16.9 20.2 24.2 29.2 35.0
-65 13.3 15.9 18.8 22.5 27.3 32.8
* : Power consumption of condensing fan in not included.