Fixed Speed Drive SHα Series | KOBELCO COMPRESSORS, Kobe Steel Group

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.

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
Condensing temperature °C	Saturated temp. at suction press. °C	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
Condensing temperature °C	Saturated temp. at suction press. °C	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
Condenser	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
Connections	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
Condensing temperature °C	Saturated temp. at suction press. °C	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
Condensing temperature °C	Saturated temp. at suction press. °C	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.