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User Manual 

Open Horizontal Electric MCH22 

Open Horizontal Electric MCH30 

Open Horizontal Electric MCH36 

Open Vertical Electric MCH22 

Open Vertical Electric MCH30 

Open Vertical Electric MCH36 

Rev. 03.19 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 

Summary of Contents for Open Horizontal Electric MCH22

Page 1: ...ser Manual Open Horizontal Electric MCH22 Open Horizontal Electric MCH30 Open Horizontal Electric MCH36 Open Vertical Electric MCH22 Open Vertical Electric MCH30 Open Vertical Electric MCH36 Rev 03 19...

Page 2: ...Nuvair Open Electric Models Nuvair Page 1 www Nuvair com...

Page 3: ...ntained 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...

Page 4: ...the refill hoses are in good condition 7 3 Storing technical documentation 8 0 Gauge Panel 9 0 Overpressure Safety Valves 10 0 Bottle Refill 11 0 Maintenance 11 1 Forward 11 2 General 11 3 Unschedule...

Page 5: ...mantling the Compressor 17 0 Instructions for Emergency Situations 17 1 Fire 18 0 Maintenance Register 18 1 Customer Service 18 2 Scheduled Maintenance 18 3 Using the Compressor Under Heavy Duty Condi...

Page 6: ...sor operators maintenance personnel must read this entire manual with due care and attention and observe the instructions information contained herein Company owners ensure that the operator has the r...

Page 7: ...ventive maintenance will always ensure a high level of safety when using the compressor Never postpone repairs and have them carried out by specialized personnel only use only original spare parts 1 4...

Page 8: ...Change the air purification filters regularly as described in section 13 0 Drain the condensate regularly as illustrated in section 13 2 Condensate Discharge The power must be disconnected and locked...

Page 9: ...rks know how to use the controls and have read the technical information contained in this manual It is forbidden to use the compressor under conditions or for purposes other than those indicated in t...

Page 10: ...ceed 113 F 45 C air conditioning will be required Make sure that lighting in the area is sufficient to identify every detail such as the writing on the info plates stickers use artificial lighting whe...

Page 11: ...to compress Air or Nitrox will expose you to both low and high pressure gas Gas even under moderate pressures can cause extreme bodily harm Never allow any gas stream to be directed at any part of yo...

Page 12: ...r loose parts are left on the Compressor System 13 Do not use flammable solvents for cleaning the Air Inlet Filters or elements and other parts 14 Exercise cleanliness during maintenance and when maki...

Page 13: ...iption of the Compressor Nuvair MCH36 Open Horizontal shown without front cover Optional Skids with Fork Slots Auto Drain Condensate Catch Document Holder Electrical Box Triple Auto Drains Optional Co...

Page 14: ...Off Switch Fill Whip Connections Visual CO Monitor Optional Frame Certification Plaque Auto Drain Test Purge Button Hour Meter Optional Block Heater On Off Emergency Stop Top of Electrical Box Optiona...

Page 15: ...5247 Condensate Collection Container Attached to Auto Drains Drain Daily Auto Drains and Manual Drains 3x Compressor Oil Level Compressor Oil Drain Motor Starter Electrical Box HP Air Intake Oil Fill...

Page 16: ...Pressure Gauges 3 Condensate Separators Large Stainless Steel Interstage Cooling Tubes Low Pressure Oil Pump with Filter Oil Level Sight Gauge and Oil Pressure Gauge Automatic Condensate Drains Load l...

Page 17: ...m spacing of 36 from adjacent walls Select a location where ambient room temperature is a minimum of 41 F to a maximum 113 F C Min 5 Max 45 4 Make sure the installation space is well ventilated MCH 22...

Page 18: ...check Check that the level of lubricating oil a is within acceptable limits i e between min and max Note that an excessive quantity of oil can leave deposits on the valves while too low a level preve...

Page 19: ...ssure fails to reach the pressure set on the pressure switch switch off the compressor and contact Nuvair Fill Pressure Gauge Pressure at the fill whips Oil Pressure Gauge If No Oil Pressure or High P...

Page 20: ...Shuts down the compressor at a set pressure Dial A Pressure Switch Allows the operator to dial in a pressure for the compressor to automatically shut off at when the pressure is reached during the fil...

Page 21: ...lways use suitable wrenches tools so as not to damage the relevant components Loosen stiff parts with a copper or plastic mallet When refitting parts make sure they are clean and lubricated sufficient...

Page 22: ...eak in period the original oil filter and lubricating oil must be changed at the 25 hour mark After the initial change of lubricants and filter the oil and oil filter must be changed every 100 hours o...

Page 23: ...f with oil until the level returns within the max and min limits Close the fill plug After running the compressor the lubricant will be very hot Take care when removing the drain plug and draining the...

Page 24: ...and let all the oil flow out Unscrew the fittings c and remove the pipe b Remove the fixing screws e and the cover d Replace the filter f with a new one Re close the plug d with the screws e Put the p...

Page 25: ...lt and 4 bolt torque sequence 11 10 CO Moisture Indicator This element contains a CO indicating button and a humidity element in the form of a strip about 1 4in wide and 3 4in long These items need to...

Page 26: ...dge b replace the cartridge with a new one re close the cover a screw it back on Do not carry out these tasks if the compressor has just shut down and is hot wait for the compressor to cool down All m...

Page 27: ...Open Manual Bleed Drain Valve on filter towers to drain pressure Leave valve open 3 Unscrew the Filter Canister Cap 4 Remove expended Element from Filter Canister 5 Install New Element place pressure...

Page 28: ...Compressor Condensate must be drained every 5 10 minutes of operation 13 2 Condensate Discharge An outflow of condensate water with lubricating oil is normal during refills the quantity will depend on...

Page 29: ...for System 14 2 Rotation Check Always turn on bump starter and run motor very briefly to check for proper direction of rotation See arrow on electric motor and flywheel belt guard Operation in revers...

Page 30: ...machine parts During machine downtimes it is advisable to run the compressor for 20 minutes every 15 days 16 0 Dismantling and Putting the Compressor Out Of Service Should you decide not to use the c...

Page 31: ...es between remaining machines are unaffected Empty the tank containing the lubricating oil and store in compliance with the laws in force Proceed with disassembly of the individual compressor componen...

Page 32: ...commend you always contact our office This section provides a simple tool with which to request assistance and register completed scheduled maintenance work Start up and maintenance checks tasks once...

Page 33: ...ade Nitrox Compatible Nuvair 451 1 Gal Other Sizes Available 9406 Nuvair 751 1 Gal Other Sizes Available 9403 HP Filter Elements Black Canisters Absorbent Filter x2 X65677 Triplex Filter X65247 Blue C...

Page 34: ...Nuvair Open Electric Models Nuvair Page 33 www Nuvair com 20 0 Service Log Date Technician Name Service Performed...

Page 35: ...ne System 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...

Page 36: ...d to them are 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 sy...

Page 37: ...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 any change of addres...

Page 38: ...Nuvair Open Electric Models Nuvair Page 37 www Nuvair com Notes...

Page 39: ...Nuvair Open Electric Models Nuvair Page 38 www Nuvair com...

Page 40: ...Nuvair Phone 1805 815 4044 Fax 1 805 486 0900 1600 Beacon Place Oxnard CA 93033 USA info Nuvair com www Nuvair com Rev 03 19...

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