IMPETUS 22-75 kW

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30-100 hp 100-125-150 psi 30-535 cfm

Oil Injected, Two-Stage, Direct Coupled, Variable Speed

Rotary Screw Air Compressors

Next generation compact compressors maximize your energy saving, minimize your total cost of own.

General Features

• IE4 efficiency-class electric motors in fixed speed models

• IE5 efficiency-class IPM electric motors in variable speed models

• Two-stage screw block

• Water cooling (37 kW and above)

• Variable and fixed speed motor power options

• Soft start with variable speed power transmission

• Heat recovery (optional)

• Operating with low noise level

• Integrated dryer (optional)

Screw Block

• Direct coupled

• Two-stage screw produces energy efficiency by up to 10%

• Higher flow rate by up to 10% with two-stage screw

• With two-stage compression near isothermal compression

• Compact design with no power transmission element requirement in variable speed models

• Zero transmission losses by compact direct power transmission in variable speed models

• Thanks to low compression rate low axial and compression forces between screw blocks

• Thanks to low rotor speeds, a long service life

• Reliable operation thanks to elastomer coupling on fixed speed models

• Low noise and vibration levels

Electric Motor

In Fixed Speed Models;

• IE4 energy efficiency-class electric motors

• Optimised air cooling

• Motors have B-class temperature increase

In Variable Speed Models;

• Ultra Premium IE5 energy efficiency-class electric motors

• Internal Permanent Magnet Motor (IPM)

• Compact design

• F-class insulation

• Optimum oil cooling at all speeds for high efficiency

• Grease-free lubricated motor bearings

Electric Motor Drive*

• The drive and IPM meet the requirements of IES2 (EN50598)

• Functionality in a single unit

• Uses fewer components

• Long service life helps minimize environmental impact.

*Applicable for variable speed models.

Oil Filter

• Non-metallic, environmentally friendly and recyclable oil filter

• Aluminium housing

• Easy maintenance

• Compact design

Water Separator

• Compact, integrated, and unique design

• Separation performance is %99 even in very hot and humid conditions

• High energy efficiency with minimal pressure loss

Air Filter

• Two-stage filtration (Initial filtration/precision filtration)

• 99.9% efficiency in particle separation down to microns

• Low pressure loss (starting pressure fall<3mbar)

• Easy maintenance

• Long service life

Cooling System

• High cooling efficiency in compact air and oil heat exchangers

• Suitable design for operating up to 45°C

• Radial fan for high cooling efficiency (37 kW and above)

• Low noise level with low speed radial fans

• Cooling fan driver for maximum energy efficiency

Controller

In Fixed Speed Models;

• Without the need for an external main controller, ability to work synchronized for up to 5 compressors

• Weekly scheduler for starting / stopping the machine at 3 different time intervals can be individually set for each day of the week

• Internal ModBus communication

• User-friendly on-screen interface

• Alarm log records the last 20 alarms

• Periodic maintenance warnings and log records

In Variable Speed Models;

• 7” LED Display

• Group operation of up to 4 compressors

• Possibility to choose Master/Slave compressor

• Fast communication with ModbusTCP

• Ability to connect to customer DCS system via ModbusTCP

• Compact construction with integrated driver and controller

• Weekly scheduler for starting/stopping the machine at 2 different time intervals can be individually set for each day of the week

• Dual PID feature can run simultaneous PID for temperature and pressure

• Pressure PID ensures energy-efficient operation by maintaining the pressure at the desired level

• Temperature PID controls the fan speed to maintain the screw block’s most efficient operating temperature

• All inverter and compressor control data are managed from a single point

• Ability to determine co-aging times of the system with selectable parameters

• Built-in phase sensor

• User-friendly on-screen interface

30-100 hp 100-125-150 psi 30-535 cfm

TECHNICAL SPECIFICATIONS

Model	Pressure		Capacity*		Motor Power	Connection	Dimensions (in,)			Weight	Noise
	psi	bar	cfm	m3/min	hp/kW		Length	Width	Height	lbs	dB (A)
IMPETUS 22	100	7,5	140	3,96	30/22	NPT 1 1/4"	65,7	35,4	62,2	2326	70
	125	8,5	130	3,68
	150	10,3	112	3,17
	175	13	88	2,49
IMPETUS 30	100	7,5	214	6,05	40/30	NPT 1 1/4"	65,7	35,4	62,2	2690	70
	125	8,5	179	5,06
	150	10,3	159	4,5
	175	13	136	3,85
IMPETUS 37	100	7,5	244	6,9	50/37	NPT 1 1/2"	75,1	53,4	73,2	3946	63
	125	8,5	221	6,25
	150	10,3	210	5,94
	175	13	176	4,98
IMPETUS 45	100	7,5	320	9,06	60/45	NPT 1 1/2"	75,1	53,4	73,2	4542	63
	125	8,5	280	7,92
	150	10,3	240	6,79
	175	13	207	5,86
IMPETUS 55	100	7,5	380	10,77	75/55	NPT 2"	87,4	61,6	77,4	4894	66
	125	8,5	379	10,74
	150	10,3	331	9,37
	175	13	289	8,18
IMPETUS 75	100	7,5	535	15,15	100/75	NPT 2"	87,4	61,6	77,4	5710	70
	125	8,5	500	14,16
	150	10,3	466	13,2
	175	13	394	11,16

- Unit performances measured in reference conditions which are 1 bar absolute air pressure, 0% relative humidity, 20°C inlet air temperature, 71°C thermostatic valve set temperature and use of Smartoil.
- Hertz reserves its rights to make changes in its products and specifications without prior notice.
* Refers to free air delivery measured according to ISO 1217:2009, Annex C standard.

TECHNICAL SPECIFICATIONS (VSD)

Model	Pressure		Capacity*				Motor Power	Connection	Dimensions (in,)			Weight	Noise
			Minimum		Maximum
	psi	bar	cfm	m3/min	cfm	m³/min	hp/kW		Length	Width	Height	Ibs	dB (A)
IMPETUS VSD 22	100	6,9	36	1,02	152	4,31	30/22	NPT 1 1/4”	38	43	62	1654	72
	125	8,6	35,3	1	138	3,91
	150	10,3	30	0,85	123	3,47
IMPETUS VSD 30	100	6,9	61,4	1,74	220	6,22	40/30	NPT 1 1/4”	38	43	62	1929	72
	125	8,6	55,1	0,56	203	5,76
	150	10,3	52,3	1,48	181	5,12
IMPETUS VSD 37	100	6,9	62,5	1,77	271	7,68	50/37	NPT 1 1/2”	47	49	73	2690	71
	125	8,6	57,9	1,64	242	6,85
	150	10,3	60,4	1,71	214	6,05
IMPETUS VSD 45	100	6,9	81,6	2,31	327	9,26	60/45	NPT 1 1/2”	47	49	73	3087	72
	125	8,6	74,9	2,12	291	8,25
	150	10,3	72,7	2,06	250	7,08
IMPETUS VSD 55	100	6,9	98,2	2,78	410	11,61	75/55	NPT 2”	55	57	77	3572	72
	125	8,6	92,2	2,61	369	10,46
	150	10,3	78	2,21	323	9,15
IMPETUS VSD 75	100	6,9	121	3,42	571	16,16	100/75	NPT 2”	55	57	77	3880	72
	125	8,6	120	3,41	512	14,49
	150	10,3	120	3,39	449	12,71

IMPETUS 90-315 kW

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IMPETUS 22-75 kW

IMPETUS 90-315 kW

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