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MCH60 

Nuvair 

 

Page 22 

www.Nuvair.com 

 

 

 

 

 

 

 

 

 

 

 

 

Oil Pressure

 

If no oil pressure or a high pressure reading occurs, switch off compressor and contact Nuvair.  

 

 

 

 

 

1

st

 Stage 

This

 

gauge indicates the pressure inside the first compression stage.  If the pressure is not between 45 psi (3 

bar) and 60 psi (4 bar), switch off the compressor and contact Nuvair. 

 

2

nd

 Stage 

This gauge indicates the pressure inside the second compression stage.  If the pressure is not between 230 

psi (16 bar) and 290 psi (20 bar), switch off the compressor and contact Nuvair. 

 

3

rd

 Stage 

This gauge indicates the pressure inside the third compression stage.  If the pressure is not between 940 psi 

(65 bar) and 1200 psi (80 bar), switch off the compressor and contact Nuvair. 

 

Final Stage 

This gauge indicates the pressure as it exits the compressor. If the pressure fails to reach the pressure switch 

set pressure, switch off the compressor and contact Nuvair. 

 

Fill Pressure

 

This dial-a-pressure switch allows users to set the desired pressure at the high-pressure out connection. 

 

9.0  Overpressure Safety Valves 

 

Each stage of the compressor is equipped with an overpressure relief valve to ensure that the unit will not be 

damaged if the pressure shutoff switch fails to work. The final stage valve is pre-adjusted to 3200 psi (225 bar), 

4300 psi (300 bar), 4700 psi (330 bar), or 6000 psi (425 bar) depending on the final pressure specified when 

the unit was ordered.  

 

 

 

Tampering with the safety valve to increase the pressure setting is strictly forbidden. Tampering with 

the safety valve can seriously damage the compressor, cause serious injury to personnel and renders 

the warranty null and void. 

 

10.0  Pressure Controls 

 

The compressor is equipped with two types of automatic start/stop systems: 

Oil Pressure 

58 psi (4 bar) 

 

21.75 psi (1.5 bar) 

 

14.5 psi (1 bar) 

 

Cold 

Routine Use 

Minimum Pressure

 

Содержание MCH60

Страница 1: ...Operation Manual MCH60...

Страница 2: ...MCH60 Nuvair Page 1 www Nuvair com Notes...

Страница 3: ...MCH60 Nuvair Page 2 www Nuvair com Notes...

Страница 4: ...ned within Nuvair however retains the right to modify its contents without notice Under Nuvair s system of continuous improvement certain components may be updated or changed as higher quality or more...

Страница 5: ...pressor vs Lag Compressor 15 4 3 Compressor Unavailable 15 4 4 Global Alarms 15 4 5 Run Hours Screen 18 4 6 Nuvair Page 19 5 0 System Components 19 6 0 Compressor Specifications 20 6 1 Unpacking and I...

Страница 6: ...the Machine for a Brief Period 33 15 2 Stopping the Machine for an Extended Period 33 15 3 Dismantling and Putting the Compressor Out of Service 33 15 4 Waste Disposal 33 15 5 Dismantling the compres...

Страница 7: ...ation or maintenance information which is important but not hazard related 1 1 Required Operator Training This manual must be read carefully and in its entirety All compressor operators maintenance pe...

Страница 8: ...on 4 You must have a detailed understanding of where and how the compressor is to be used 5 Before starting work make sure that safety devices are working properly and that their use is understood in...

Страница 9: ...them Drain air from tanks before filling when tanks have not been used for an extended period Use the compressor in areas free from dust risk of explosion corrosion and fire Improper use could have s...

Страница 10: ...ven partially the systems and equipment described in this instruction manual especially as safety guards and safety symbols are concerned It is also forbidden to carry out work in any way other than t...

Страница 11: ...spect the filter element and check for any deposits If metal or carbon deposits are present locate the source before restarting the compressor 2 0 Safety Warnings Nuvair has taken extreme care in prov...

Страница 12: ...any separate control lines if used before attempting to work or perform maintenance Tag Out or Lock Out all power sources 7 Do not attempt to remove any parts without first relieving the entire system...

Страница 13: ...hereby warned that failure to follow the preceding Safety and Operation Precautions can result in injuries or equipment damage However Nuvair does not state as fact or does not mean to imply that the...

Страница 14: ...ww Nuvair com Condensate Collection Container Attached to Auto Drains Drain Daily High Pressure Out Connection HP Filter Replacements NUV65677 Drying Filter 3 NUV65437 Breathing Air Filter 1 Auto Drai...

Страница 15: ...Output PSI Setpoint This will open a digital keypad to input the desired shutdown pressure a Once you input your desired pressure on the digital keypad press the button to save it b The pressure will...

Страница 16: ...int is reached the button color turns yellow and the system will either a sound an alarm and or b shut down the compressor Global Alarm definitions AIT_Shutdown_Alm Gas analyzer out of range The syste...

Страница 17: ...iHiAlm The compressor first stage pressure is critically high The system shuts down immediately and sounds an alarm FourthStagePSI_HiAlm Compressor A alert The compressor fourth final stage pressure i...

Страница 18: ...A alert After 250 hours of runtime compressor oil change is required Alarm sounds MaintenanceSD timer activates OilChangeRequired_B Compressor B alert After 250 hours of runtime compressor oil change...

Страница 19: ...of runtime a 500 hour valve service is required Alarm sounds and activates maintenance shutdown MaintenanceSD_B timer activates ValveService2 Compressor A alert After 1000 hours of runtime a 1000 hour...

Страница 20: ...buttons pictured below control which screens are visible on the Dashboard o OVERVIEW Changes display to Overview screen o GAUGES Changes display to Gauges screen o ALARMS A Changes display to Alarms...

Страница 21: ...system damage and malfunction 6 1 Unpacking and Installation Please read all information supplied before physically installing the Compressor System Unpack the system and remove from the pallet Visua...

Страница 22: ...that the level of lubricating oil is within acceptable limits i e between minimum and maximum on the oil level viewer Note that an excessive quantity of oil can leave deposits on the valves while too...

Страница 23: ...s to reach the pressure switch set pressure switch off the compressor and contact Nuvair Fill Pressure This dial a pressure switch allows users to set the desired pressure at the high pressure out con...

Страница 24: ...sure out connection while the machine is under pressure Should tanks show evident signs of internal or external corrosion do not refill them even if they have been tested Use only tested tanks as prov...

Страница 25: ...al 11 3 Unscheduled Work Unscheduled work involves repairs and or replacement of the mechanical parts of one or more compressor components This work normally needs to be done after some years of use I...

Страница 26: ...oling tubes dirty Incomplete valve closure causing overload of another stage Poor Ventilation Check direction of rotation Clean cooling tubes Contact technical support Contact technical support 11 6 C...

Страница 27: ...orce All maintenance work must be carried out with the compressor OFF and the power supply lead unplugged from the main socket 11 7 Checking the Oil Level The compressor must be placed on a solid surf...

Страница 28: ...ordance with Federal State and local regulations 11 8 Changing the Lubricating Oil and Filter The lubricating oil must be changed every 250 working hours or annually 1 Every time the lubricating oil i...

Страница 29: ...nal bolts and screws except for specific cases indicated in the manual Pipe connections swivel nuts compression fittings should be finger tight plus an additional 1 2 turn 6 Bolt and 4 Bolt Torque Seq...

Страница 30: ...replaced every 500 working hours of the compressor 12 1 Checking Transmission Belts To check for proper transmission belt tension g exert a pressure of approximately 22 lb 10 kg on the belt check the...

Страница 31: ...000 cubic feet of air pumped If the compressor system is operated in high humidity and or high temperature filter elements must be changed more often See 13 2 for details on filter element life facto...

Страница 32: ...mpressor runs in simplex single compressor or duplex dual compressor mode The active carbon filters are classified as special waste once the compressor has been used to make air They must be disposed...

Страница 33: ...heck all system specifications provided in this manual when working on the compressor system the main breaker at the power source must be locked out in the off position 14 1 Amperage Load for System 1...

Страница 34: ...Service Should you decide not to use the compressor or any of its parts any longer you must precede with its dismantling and putting it out of service These tasks must be carried out in compliance wit...

Страница 35: ...mers continue to receive assistance after the purchase of a compressor To this end Nuvair has created a customer service network covering the entire country 17 2 Scheduled Maintenance The scheduled ma...

Страница 36: ...ubricant Food Grade nitrox compatible Nuvair 455 1 gal 9406 Compressor Lubricant Industrial Grade Nuvair 751 1 gal 9403 High Pressure Air Filter Elements Drying Filter Cartridge 3 NUV65677 Breathing A...

Страница 37: ...MCH60 Nuvair Page 36 www Nuvair com 19 0 Service Log Date Technician Name Service Performed...

Страница 38: ...must contain 0 003 PPM oil vapor All breathing nitrox produced for diving must be purified to meet these same requirements except for oxygen content Nitrox oxygen content must measure within 1 O2 of...

Страница 39: ...e considered expendable and are not covered under the terms of this policy This includes maintenance and consumable items listed as part of a suggested maintenance program included with system documen...

Страница 40: ...ir This card is to establish registration for any necessary warranty work and as a means of communication that allows Nuvair to contact the user regarding this product The user must notify Nuvair of a...

Страница 41: ...MCH60 Nuvair Page 40 www Nuvair com Notes...

Страница 42: ...MCH60 Nuvair Page 41 www Nuvair com 22 0 PLC Wiring Schematics PLC wiring schematics on the following pages...

Страница 43: ...MCH60 Nuvair Page 42 www Nuvair com Notes...

Страница 44: ...MCH60 Nuvair Page 43 www Nuvair com Nuvair Phone 1 805 815 4044 Fax 1 805 486 0900 1600 Beacon Place Oxnard CA 93033 USA info Nuvair com www Nuvair com Rev 04 2021...

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