Nuvair MCH-22, MCH-30, MCH-36 Operation Manual

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Operation Manual

MCH-22 MCH-30 MCH-36

Diesel Open

Rev. 10.17

MCH-22/MCH-30/MCH-36 Open Diesel

If you have any questions on this equipment please contact Technical Support at:

Nuvair 1600 Beacon Place Oxnard, CA 93036

Phone: 805-815-4044 FAX: 805-486-0900 Email: info@nuvair.com

Hours: Monday through Friday

8:00 AM to 5:00 PM PST USA

This Operation Manual contains important safety information and should always be available to those personnel operating this equipment. Read, understand, and retain all instructions before operating this equipment to prevent injury or equipment damage.

Every effort was made to ensure the acc uracy of the information contained within. Nuvair, however, retains the right to modify its contents without notice. If you have problem s or questions after reading the manual, stop and call Nuvair at 1-805-815-4044 for information.

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MCH-22/MCH-30/MCH-36 Open Diesel

Table of Contents

Introduction

1.0 Introduction 5

1.1 Required Operator Training 5

1.2 Important Information for the User 5

1.3 Foreword 6

1.4 Warranty 6

1.5 Assistance 7

1.6 Responsibility 7

1.7 Purpose of the Machine 7

1.8 Where the Compressor may be used 9

1.9 Running and Testing the Compressor 10

2.0 Safety Warnings 10

3.0 Safety and Operation Precautions 11

4.0 Description of the Compressor 12

5.0 System Components 13

6.0 Compressor Specifications 14

6.1 Unpack and Installation 14

7.0 Checks to be run at the start of each working day 15

7.1 Lubricating oil check 15

7.2 Check the refill hoses are in good condition 15

7.3 Storing technical documentation 15

8.0 Control Panel 16

8.1 1

8.2 2

8.3 3rd stage Pressure Gauge description 16

8.4 4

8.5 Oil Pressure Gauge 16

8.6 Fill pressure Gauge 16

9.0 Safety Valve Checks 16

10.0 Bottle Refill 17

11.0 Maintenance 18

11.1 Forward 18

11.2 General 18

11.3 Unscheduled Work 18

11.4 Scheduled Maintenance Table 19

11.5 Troubleshooting 19

11.6 Checking and changing the lubricating oil and filter 19

11.7 Checking the Oil Level 20

11.8 Changing the lubricating oil and filter 21

11.9 Tightening Torque Values 22

11.10 CO Moisture Indicator 22

11.11 Changing the Air Intake Filter 23

12.0 Transmission Belt 23

12.1 Checking the Transmission Belt 23

13.0 HP Compressor Filtration Active Carbon Filters / Molecular Sieve 24

13.1 Temperature effect on filter life 25

13.2 Condensate Discharge 25

14.0 Rotation Direction

15.0 Storage 26

15.1 Stopping the machine for a brief period 26

15.2 Stopping the machine for a long period 26

stage Pressure Gauge description 16

stage (working) Pressure Gauge description 16

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MCH-22/MCH-30/MCH-36 Open Diesel

16.0 Dismantling and putting the compressor out of service 26

16.1 Waste disposal 27

16.2 Dismantling the compressor 27

17.0 Instructions for emergency situations 27

17.1 Fire 27

18.0 Maintenance Register 28

18.1 Customer Service 28

18.2 Scheduled Maintenance 28

18.3 Using the compressor under heavy duty conditions 28

18.4 Nuvair Customer Care Contact 28

19.0 Start – Stop Operation 29

20.0 Spare Parts List 30

21.0 Service Record Log 31

22.0 Appendix 32 Material Safety Data Sheets 33 Nuvair System Compressor Warranty Info 34

Separate Manuals Included:

Kohler Diesel Manual Coltri MCH 30/36 Parts Manual

Abbreviations used throughout this manual: PSI Pounds Per Square Inch CFM Cubic Feet Per Minute

HP High Pressure RPM Rotations Per M inute CO Carbon Monoxide L/min Liters Per Minute Fº Fahrenheit Cº Celsius

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MCH-22/MCH-30/MCH-36 Open Diesel

Introduction

This manual will assist you in the proper set-up, operation and maintenance of the Nuvair MCH30 or MCH-36 diesel compressor packages. Be sure to read the entire manual. Throughout this manual we will use certain words to call your attention to conditions, practices or techniques that may directly affect your safety. Pay particular attention to information int r oduc ed by the following signal words:

Indicates an imminently hazardous situation, which if not avoided, will result in serious personal injury or death.

Indicates a potentially hazardous situation, which if not avoided, could result in serious personal injury or death.

Indicates a potentially hazardous situation, which if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

Notifies people of installation, operation or maintenance information which is important but not hazard-related.

1.1 Required Operator Training

This manual must be read carefully and entirely:

• all compressor 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 required training for operation of the compressor and that he/she has read the manual.

1.2 Important Information for the User

The information/instructions for compressor use contained in this manual concern t he NUVAIR compressor: MCH-30 / MCH-36 diesel The instruction manual must be read and used as follows:

• read this manual carefully; treat it as an essential part of the compressor;

• the instruction manual must be kept where it can readily be consulted by compressor

operators and maintenance staff;

• keep the manual for the working life of the compressor;

• make sure updates are incorporated in the manual;

• make sure the manual is given to other users or subsequent owners in the event of

resale;

• keep the manual in good condition and ensure its contents remain undamaged;

• do not remove, tear or re-write any part of the manual for any reason;

• keep the manual protected from damp and heat;

• if the manual is lost or partially damaged and its contents cannot be read it is

advisable to request a copy from Nuvair or download an electronic version at www.nuvair.com.

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MCH-22/MCH-30/MCH-36 Open Diesel

1.3 Foreword

The regulations/instructions for use contained in this manual constitute an essent ial component of the supplied compressor. These regulations/instructions are int ended f or an operator who has already been trained to use this type of compressor. They contain all the information necessary and essential to safety and efficient, proper use of the compressor. Hurried or careless preparation leads to improvisation, which is the cause of accidents.

Before beginning work, read the following suggestions carefully:

1) Before using the compressor, gain familiarity with the tasks to be completed and the

admissible working position;

2) The operator must always have the instruction manual to hand;

3) Plan all work with due care and attention;

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 the event of any doubts do not use the compressor;

6) Observe the warnings given in this manual with due care and attention;

7) Constant and careful preventive 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 Warranty

The Materials Supplied by NUVAIR are covered by a 1 year warranty, the 1 year warranty begins from the date of purchase on the invoice. NUVAIR shall repair or replace those parts it acknowledges to be faulty during the warranty period.

In replacing the faulty part NUVAIR shall not be liable for any other expenses sustained by t he dealer or his customer such as presumed damage (present or future), lost earnings or fines.

Routine and unscheduled maintenance must be carried out in compliance with the instructions contained in this manual. Should the required work not be covered by the manual or assist ance be required you are advised to contact NUVAIR directly by fax or email, even where agr eem ents have already been made on the phone. NUVAIR cannot be held liable for any delays or f ailure to execute work.

NUVAIR cannot be held liable for any damage or malfunctions caused by work carried out on t he compressor by unauthorized personnel. NUVAIR guarantees that its compressors are free from defects design, workmans hip and the used materials for a period of 1 year starting from the date of purchase on the compressor invoice; should the customer note any flaws and/or defects he must report them, in writing, to NUVAIR within 2 months of their discovery otherwise the warranty shall be rendered null and void. The warranty only covers flaws and faults that occur where the compressor is used properly in compliance with the instructions contained in this manual and where periodic maintenance is carried out. The warranty does not cover faults caused by improper use of the compressor, exposure to atmospheric agents (rain etc.) or damage during transport; all materials subject to wear and those subject to periodic maintenance are not covered by the warranty and are to be paid for by the customer in full; in any event the warranty is rendered null and void if the compressor is tampered with or if work is carried out on it by personnel who have not been authorized by NUVAIR.

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MCH-22/MCH-30/MCH-36 Open Diesel

A compressor that has been acknowledged as faulty on account of flaws in design, workmanship or used materials shall be repaired or replaced free of charge by at NUVAIR at 1600 Beacon Place, Oxnard, CA 93036 USA; costs regarding transport, delivery of spare parts and any materials subject to wear shall be met by the customer. Should warranty-covered work need to be carried out on the customer’s premises, travel and accommodation costs for personnel sent by NUVAIR shall be met by the customer. The act of taking delivery of machines and/or faulty components or the sending of technicians to assess the presumed defects and/or flaws reported by the customer does not in itself imply acknowledgement that the defect is covered by warranty. Repairs and/or replacements made by NUVAIR during the warranty period do not in any way prolong the latter itself. Acknowledgement that a defect is covered by warranty does not in itself mean that NUVAIR is in any way liable to award compensation. NUVAIR cannot be held liable for any other direct or indirect damages imputable to compressor defects and flaws (loss of production or earnings etc.) except in cases where serious negligence is demonstrated.

1.5 Assistance NUVAIR technicians are at your disposal for all routine/unscheduled maintenance work.

Please forward your request for assistance to NUVAIR by sending a fax or e-mail to:

Phone: 1-805-815-4044 Fax: 1-805-486-0900 Email: info@nuvair.com

1.6 Responsibility NUVAIR considers itself exonerated from any responsibility or obligat ion r egarding injury or

damage caused by:

• Failure to observe the instructions contained in this manual that concern the running, use and maintenance of the compressor;

• Violent actions or incorrect maneuvers during use or maintenance of the compressor;

• Modifications made to the compressor without prior written authorization from NUVAIR;

• Incidents beyond the scope of routine, proper use of the compressor.

Maintenance and repairs must only be carried out using original spare parts and qualified technicians. NUVAIR cannot be held liable for any damages caused by failure to observe this rule. The compressor is guaranteed as per the contractual agreements made at the time of sale. Failure to observe the regulations and instructions for use contained in this manual shall render the warranty null and void.

1.7 Purpose of the Machine

The high pressure compressor model MCH-30 / MCH-36 has been designed and bui lt for the purpose of producing breathing air by drawing it from the surrounding environment. The surrounding environment air must be free from any harmful fumes or contam inates. The air is passed through an intake air filter, compressed and run through br eathing air filtration before it is stored in bottles constructed to contain air at high pressure. The compressor can also be used for the pumping of gases:

• Nitrogen

• Helium

• Nitrox mixtures up to 40% - System is not cleaned for oxygen or mixes greater than

40%

Any other use is inappropriate: the manufacturer cannot be held liable for any personal injur y or damage to objects / the machine itself caused by improper use.

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MCH-22/MCH-30/MCH-36 Open Diesel

• Use only tested, certified bottles: do not exceed the working pressure indicated on

them.

• Drain air from tanks before filling when tanks have set for a period of time unused.

Use the compressor in areas free from dust, risk of explosion, corrosion and fire.

• Improper use could have serious consequences for the user.

• Do not disconnect the hose from the fittings or the clamp when under pressure.

• Change the air purification filters regularly as described in section “13.0 changing the

active carbon filters”.

• Drain the condensate regularly as illustrated in section “13.2 Condensate discharge”.

• Never operate the compressor when there is evident damage

• All routine and unscheduled maintenance tasks must be carried out with the

compressor at a standstill, and all lines are depressurized.

• After switching off the compressor wait about 30 minutes before carrying out any

maintenance tasks so as to prevent burns.

• The high pressure flex hose that connects to the bottle (also called the refill hose)

must be in good condition, especially in the areas near the fittings. The plastic sheath that covers the hose must not show any signs of abrasion otherwise moisture could get in and corrode the steel braid thus weakening it. The hose must be changed periodically (yearly) or when it shows signs of wear. Failure to observe this rule could seriously endanger the users’ safety. Make sure the minimum bending radius of the hose is no less than 10 inches (250 mm).

To ensure maximum working efficiency, NUVAIR has constructed the compressor with caref ully selected components and materials. The compressor is tested prior to delivery. Continued compressor efficiency over time will also depend on proper use and maintenance as per the instructions contained in this manual. All the components, connections and controls used in its construction have been designed and built to a high degree of safety so as to resist abnormal strain or in any case a strain greater than that indicated in the manual. Materials are of the finest quality; their introduction and s t orage in the company and their utilization in the workshop are controlled constantly so as to prevent any damage, deterioration or malfunction.

This system is not cleaned for oxygen service and not all components are compatible with gas mixtures containing greater than 40% oxygen. Pumping gas mixtures containing greater than 40% oxygen will lead to explosions which may cause severe personal injury or death.

Each scuba cylinder belonging to a customer must be analyzed by that customer at the nitrox filling facility, using an oxygen analyzer independent of those used with the nitrox system. An employee must witness that the customer has properly analyzed the gas in each cylinder, noted the maximum operating depth for that mixture, and signed and dated the fill log. The time of day must also be included with the date, since some customers may fill the same cylinder more than once a day.

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MCH-22/MCH-30/MCH-36 Open Diesel

Area of Machine Use: Essential Data Table

Temperature ambient

(°F) (Min. +41° - Max. +113°) (°C) (Min. +5° - Max. +45°)

Air humidity

(%)

Maximum 80%

rain

Tolerated Weather snow

Max tilt angle (bank)

• Before carrying out any work on the compressor each operator must have a perfect

understanding of how the compressor works, 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 this manual and NUVAIR cannot be held liable for breakdowns, problems or accidents caused by failure to observe this rule.

• Check that the fittings provide a proper seal by wetting them with soapy water: Stop the compressor and eliminate any leaks immediately when detected.

• Do not attempt to repair high pressure hoses by welding them or while the compressor is running.

• Do not empty the bottles completely, not even during winter storage as this practice allows damp air to get in and eventually corrode the bottle.

• It is forbidden to tamper with, alter or modify, even 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 that described or to neglect the illustrated safety tasks. -The safety information and the general information given in this manual are very important.

1.8 Where the Compressor may be used

The compressor model MCH-30 / MCH-36 has been designed and built for the purpose of obtaining breathing air by drawing it from the surrounding environment, free from any harmful fumes. The air is passed through an intake filter and, after the filtration cycle, is stored in bottles constructed to contain air at high pressure. The compressor must only be used in environments having the characteristics described in the following table.

Conditions

hail none

Check that the area in which the compressor is to be positioned is adequately ventilated: good air exchange (more than one window) with no dust and no risk of explosion, corrosion or fire. If ambient temperatures exceed 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 where daylight on its own is insufficient .

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MCH-22/MCH-30/MCH-36 Open Diesel

1.9 Running and Testing the Compressor

Each compressor is carefully ran and tested prior to delivery. A new compressor must nevertheless be used with caution during the first 5 working hours so as to complete proper breaking in of its components. If the compressor is subject to an excessive workload during init ial use, its potential efficiency will be prematurely compromised and functionality soon reduced. During the breaking in period proceed as follows:

• after starting up the compressor, let the compressor run un-loaded for 5-6 minutes. (crack

open a fill whip to relieve pressure)

After the first 25 hours carry out in addition to the scheduled maintenance the following tasks:

• change the compressor oil

• change the oil filter

• check and adjust nuts and bolts

When changing the oil filter, inspect the internal part and check for any deposits; if they are present track down the cause before restarting the compressor.

2.0 Safety Warnings

Nuvair has taken extreme care in providing you with the information you will need to operate this system. However, it is up to you to carefully read this manual and make the appropriate decisions about system safety.

This equipment is used to provide breathing gas for the purpose of underwater life support. Read this manual in its entirety. Failure to heed the warnings and cautions contained in this document may result in severe injury or death.

The equipment you will be using to compress air will expose you to both low and highpressure gas. Gas, even under moderate pressures, can cause extreme bodily harm. Never allow any gas stream to be directed at any part of your body.

Any pressurized hose can cause extreme harm if it comes loose or separates from its restraint (or termination) while under pressure and strikes any part of your body. Use appropriate care in making and handling all gas connections.

Do not use any form of mineral oil or synthetic lubricant not rated for the MCH-30 or MCH 36 Compressor in this system. Use only the recommended Compressor Lubricant. Never mix the Compressor Lubricant with other lubricants. The use of improper lubricants can lead to fi r e or explosions, which may cause serious personal injury or death.

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MCH-22/MCH-30/MCH-36 Open Diesel

3.0 Safety And Operation Precautions

Because a compressor is a piece of machinery with moving and rotating parts, the same precautions should be observed as with any piece of machinery of this type where carelessness in operations o r maintenance is hazardous to personnel. In addition to the many obvious safety precautions, those listed below must also be observed:

1) Read all ins t ructions completely before operating any compressor.

2) For installation, follow all local safety codes, and the Occupational Safety and Health Administration (OSHA) standards.

3) Do not att empt t o remove any par t s without first relieving the entire system of pressure.

4) Do not att empt t o service any part while Syst em is in an oper ational mode.

5) Do not operat e the System at pressures in excess of its rating.

6) Do not operat e c om pressor at speeds in excess of its rating.

7) Periodically check all safety devices for proper operation. Do not change pressure setting or restrict operation in any way.

8) Be sure no tools, rags or loose parts are left on the Compressor System.

9) Do not use flam mable solvents for cleaning the Air Inlet Filters or elements and other parts.

10) Exercise cleanliness during maintenance and when making repairs. Keep dirt away from parts by covering parts and exposed openings with clean cloth or Kraft paper.

11) Do not operate the compressor without guards, shields, and screens in place.

12) Do not install a shut-off valve in the compressor discharge line, unless a pressure relief valve, of proper design and size, is installed in the line between the compressor unit and shut-off valve.

13) Do not operate in areas where there is a possibility of inhaling carbon monoxide, carbon dioxide, nitrogen, or flammable or toxic fumes.

14) Be careful when touching the exterior of a recently run electric, gasoline, or diesel motor - it may be hot enough to be painful or cause injury. With modern motors this condition is normal if operated at rated load - modern motors are built to operate at higher temperatures.

15) Inspect unit daily to observe and correct any unsafe operating conditions found.

16) Do not “play around” with compressed air, nor direct air stream at body, because this can cause injuries.

17) Compressed air from this machine absolutely must not be used for food processing or breathing air without the downstream filters, purifiers and controls and periodic air qualit y testing.

18) Always use an air pressure-regulating device at the point of use, and do not use air pressure greater than marked maximum pressure.

19) Check hoses for weak or worn conditions before each use and make certain that all connections are secure.

The user of any compressor manufactured by Nuvair is 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 preceding list of Safety and Operation Precautions is all-inclusive, and further that the observance of this list will prevent all injuries or equipment damage.

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MCH-22/MCH-30/MCH-36 Open Diesel

Compressor

Diesel

HP Filter Replacement Filter

Oil Drain

Manual Condensate

Fill

HP Air

Battery

Oil

CO / Moisture

Stage Pressure

Auto Drains

Condensate

Key Switch

Throttle

Engine

HP Air

Manual Pressure

4.0 Description of the Compressor ( Pictured is MCH30 diesel)

Outlets

X65677 X65247

Collection

Container

Attached

to Auto

Drains

Oil Level

with Timer

(Note) Older Filters and Condensate drain tank types

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Sensor

Bypass Valve

Front View – HP Supply Option Shown

Intake Filter

Drain Valves (3X) on

Auto Drain

Pressure

Gauge

Gauges

4,3,2,1

Compressor

Rear View – HP Supply Option Shown

Pressure

Gauge

exhaust

Engine

Control

MCH-22/MCH-30/MCH-36 Open Diesel

4.1 Start-Stop Operation Quick start Guide

1. Check Oil Level in Engine

2. Check Oil Level in Compressor

3. Turn the Manual Bypass Valve to the Start position

4. Turn Key to Start Position a. If engine does not start after 10 seconds of cranking; turn off key and rest starter for

30 seconds.

5. Once Engine Starts, turn the Manual Bypass Valve to the Run position

6. Adjust Throttle to desired RPM

7. Check Gauges for proper Stage Pressure a. Oil 14.5 PSI Min b. 1st Stage 45-60 PSI c. 2nd Stage 230-290 PSI d. 3rd Stage 940-1200 PSI e. 4th Stage 5000 PSI Max

8. To Stop Compressor reduce RPM

9. Turn Key to Off

10. Check t hat Aut omatic Drains are Open and Drain All Moisture

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MCH-22/MCH-30/MCH-36 Open Diesel

5.0 System Components Coltri MCH30 or MCH36 High Pressure Air Compressor

4 Cylinder, 4 stage, Air Cooled Visual CO / Moisture Indicator Hour Meter Kohler Diesel 19hp for MCH 30 or 28.5hp for MCH36 Interstate Pressure Gauges 2 Large Condensate Separators (3rd optional) Large Stainless Steel Interstage Cooling Tubes Low Pressure Oil Pump with Filter Oil Level Sight Gauge and Oil Pressure Gauge Automatic Condensate Drains Loadless Start Low Oil Shutdown Switch High Temp Switch set at 350* F Dual Filter Filtration (60,000 Cu. Ft.) Aluminum Frame & Belt Guard with Fork Lift Slots Powder Coated Steel 250 Frame with dual isolation vibration mounts

(Stainless Steel option available)

Lubricant: Nuvair 455 Nuvair 751

Optional Certified Lifting Eyes Optional Pro CO with Audible Alarm

Food Grade Lubricant (standard)

Diester Based Lubricant (optional)

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MCH-22/MCH-30/MCH-36 Open Diesel

MCH 22

MCH 30

MCH 36

SCFM

Filling a tank 80 cu ft. tank from 500PSI

FAD

Max Operating Pressure

RPM

3600

3000

Number of Stages

Lubrication

14.5 psi, 1 bar

minimum pressure

Dimensions (WxDxH)

Weight

760-900 lb (345-408 kg)

6.0 Compressor Specifications

14 SCFM, 396 L/min 21 SCFM, 595 L/min 26.4 SCFM, 748 L/min 14 FAD 400 L/min 17.5 FAD, 496 L/min 22 FAD , 623 L/min

Kohler Diesel Engine

Oil Pressure

Air Quality

19 hp (14kW) 19 hp (14kW) 28.5 hp (21kW)

6000 PSI (414 Bar)

4 4 4

Pressure Lubrication, capacity 1.2 gallons 4.5 qts.

58 psi,4 bars

21.75 psi, 1.5 bars

cold routine use

Grade E

64 x 32 x 44 in (163 x 81 x 112 cm)

Ambient room temperature should never exceed 113oF (45oC) during operation of the Compressor System. Operation at higher temperatures may lead to system damage and malfunction.

6.1 Unpack and Inst allation

1. Please read all information supplied before physically installing the Compres sor System.

2. Unpack the system and remove from the pallet. Visually inspect the system to make sure

there has been no damage during shipping. If damaged, please call Nuvair to file a damage report. Please take photos and supply detailed information about the damage.

3. Place the system in a permanent location allowing a minimum 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.

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MCH-22/MCH-30/MCH-36 Open Diesel

7.0 Checks to be run at the start of each working day

Inspect the exterior of the compressor (couplings, pipes, pneumatic components etc.) and check for any oil leaks. Replace parts where necessary or contact NUVAIR.

7.1 Lubricating oil level 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 cause infiltrations in the cylinders and leave deposits on the valves while too low a level prevents proper lubrication and could cause engine seizure. If the oil level is not within the minimum and maximum limits top up or drain as described in section “12.8 Changing the lubricating oil and filter”.

7.2 Check that t he r efi ll hoses are in good

condition

Inspect the refill hoses and make sure there are no cuts, holes, abrasions, leaks etc. If necessary replace with new hoses.

7.3 Stori ng t echnical docum ent ation

The use and maintenance manual and its appendices must be stored carefully and must always be kept where they can be accessed easily for immediate review.

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MCH-22/MCH-30/MCH-36 Open Diesel

58 psi,4 bars

cold

8.0 Control Panel

8.1 1st stage pressure gauge (1)

The (1) gauge indicates the pressure inside the 1st compression stage. If the Pressure is not between 45 PSI (3 bar) and 60 PSI (4 bar) switch off the compressor and contact Nuvair.

8.2 2nd stage pressure gauge (2)

The (2) gauge indicates the pressure inside the 1st compression stage. If the Pressure is not between 230 PSI (16 bar) and 290 PSI (20 bar) switch off the compressor and contact Nuvair.

8.3 3rd stage pressure gauge (3)

The (3) gauge indicates the pressure inside the 1st compression stage. If the Pressure is not between 940 PSI (65 bar) and 1200 PSI (80 bar) switch off the compressor and contact Nuvair.

8.4 4th stage pressure gauge / Working Pressure Gauge (4)

This (4) gauge indicates the pressure as it exits the compressor. If the Pressure fails to reach the pressure set on the pressure switch, switch off the compressor and contact Nuvair.

8.5 Oil Pressure Gauge- If No Oil Pressure or High Pressure readings occur, switch off compressor and contact Nuvair.

8.6 Fill Pressur e G auge- Pressure at the fill whips.

9.0 Safety Valve Checks

Check that safety valves are working properly by starting the compressor with the end taps closed: this will raise circuit pressure fast and trip the valves when their pressure setting is reached. The valves are pre-adjusted to 3200 PSI (225 bar), 4300PSI (300bar) , 4700PSI (330bar) or 6000 PSI (425 bar).

Oil Pressure

21.75 psi, 1.5 bars

14.5 psi, 1 bar

routine use minimum pressure

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.

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MCH-22/MCH-30/MCH-36 Open Diesel

Fill Whip connection

points on compressor

10.0 Bottle Refill

To refill the bottles proceed as follows:

- Fit the hose connector (a) to the tank valve (b)

- Screw in the fixing knob (c) until it is completely tightened

- Check that the bleed valve (f) is closed by rotating it clockwise

- Open the valve (d) by rotating it counter clockwise

- Open the valve (e) by rotating it counter clockwise

- Start the compressor by turning the key on (g)

- When the refill has been completed the compressor shuts down automatically, monitor the fill pressure while filling

- Close valves (d) and (e) by rotating them clockwise

- Open the bleed valve (f) by rotating it counter clockwise until all the residual air in the fitting has been expelled

- Unscrew the fixing knob (c) by rotating it counter clockwise

- Disconnect the bottle coupling.

Options for this compressor that may or may not be installed are:

• Pressure Switch: 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 filling process.

During refill the operator must be in the work area. It is advisable, during the bottle refill phase, to submerge the bottles in cold water so as to reduce the drop in pressure that accompanies cooling of the bottle.

During bottle refill those not involved in the refill procedure must maintain a safety distance of at least 9 feet (3 meters). Also, it is forbidden to disconnect the hoses from the fittings or the refill tap while the machine is under pressure.

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MCH-22/MCH-30/MCH-36 Open Diesel

Should bottles show evident signs of internal or external corrosion, do not refill them even if they have been tested.

Use only tested bottles (as proven by a test stamp and/or certificate). The working and bottle refill pressures are shown on the bottles themselves. It is forbidden to refill them at a pressure greater than that indicated.

11.0 Maintenance

11.1 Forward

To obtain the best possible performance from the compressor and ensure a long workin g life for all its parts it is essential that personnel follow the use and maintenance instructions with extreme diligence. It is thus advisable to read the information below and consult the manual every time an inconvenience arises. For further information please contact Nuvair

Nuvair

Phone: 805-815-4044 1600 Beacon Place Email: Info@nuvair.com Oxnard, Ca lif or nia 93036, USA

11.2 General

• Proper preservation of the compressor requires thorough cleaning.

• This type of refill station, designed and built according to the most advanced technological

criteria, requires only minimum preventive and routine maintenance.

• Before carrying out any maintenance tasks, run checks and/or controls on the compressor, switch off the compressor, remove the plug from the mains socket.

• The residual pressure present in the compressor and all lines must be released.

• During disassembly and re-assembly of the compressor, always 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 sufficiently.

• Compressor maintenance tasks must only be carried out by authorized personnel and

recorded on page 31 Maintenance Log of this manual.

11.3 Unscheduled Work

Involves repairs and/or replacement of the mechanical parts of one or m ore compressor components, this work normally needs to be done after some years of use. If substantial modifications are made, the manufacturer cannot be held liable for any dangers that might arise. This work must be carried out by a “Nuvair” qualified mechanic.

Address:

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MCH-22/MCH-30/MCH-36 Open Diesel

Every

250

500

1000

3000

Lubricating Oil Check

Automatic Shutdown Check

Condensate Container discharge



Belt wear and tension

 

Air intake filter



Fitting / hose leak check

 

Oil Filter and Oil change

*

Separator filter element cleaning



1st – 2nd – 3rd stage Valve replacement





4th stage valve replacement

Water & HP oil separator replacement

HP filter body replacement

Problem

Cause

Solution

-Rotation speed and flow

•Motor power too low The belt slips

•Check the motor and the line

-The flow rate diminishes

•Valves not working

•Check fuses or condenser

Contact technical support

-Air smells of oil

•Cartridge filter exhausted

•Piston rings worn

•Replace filter

•Contact technical assistance

-Compressor overheats

•Direction of rotation wrong

(causing overload of another stage)

•Check direction of rotation

11.4 Scheduled Maintenance Table

Maintenance

5 hours



 Checking and cleaning  Change

• Oil Change every 100 hours when used with Nitrox

11.5 Troubleshooting

Day

 

Year



(hours)



(hours)

 

rate decrease

without rpm decreasing

11.6 Checking and changing the lubricating oil and filter

During the compressors initial break-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 of use or annually, whichever comes first.

HP Compressor Lubricant: Only use lubricants rated for use with Nitrox, such as Nuvair 455 TM Synthetic Food Grade Lubricant or Nuvair 751 Nuvair Compressors are shipped with Nuvair 455 Synthetic Food Grade Lubricant or Nuvair 751

in the compressor. Coltri OIL CE750 and Anderol 755 may also be used, but not mixed

with Nuvair oil.

•

•4th stage piston worn

•Fittings loose / leaking seals

•Intake filter clogged

•Intake extension kinked

•Piston or piston rings worn

•Cooling tubes dirty

•Incomplete valve closure

. Never mix Compressor Lubricants.

•Contact technical support

•Check for leaks with soapy

water and eliminate them

•Replace filter

•Straighten, use stiffer pipe

•

•Contact technical support

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MCH-22/MCH-30/MCH-36 Open Diesel

Lubricant

Oil Level

Oil drain

Use only the specified Nuvair Lubricants in this system. The use of incompatible lubricants presents a risk of fire and/or explosion, and may result in system damage. This can lead to severe personal injury and death.

Do not carry out these tasks if the compressor has only just shut down; wait for the compressor to cool. Pressure must be drained before opening LP Fill Plug. Any oil spilt during the oil/filter change could cause personnel to slip; wear protective garments and anti-slip footwear and remove traces of oil immediately. Both oil and filter are classified as special wastes and must therefore be disposed of in compliance with the anti-pollution laws in force. All maintenance work must be carried out with the compressor OFF and the power supply lead unplugged from the main socket.

The compressor must be placed on a solid surface with a tilt of no more than 6°.

11.7 Checking the Oil Level

The oil level must be checked every 5 working hours of the compressor. The oil level must be between the minimum and the maximum shown on the oil level indicator.

(See close-up picture bottom of next page)

If the oil level is above the maximum level:

• Position a recipient under the drain hose so that the oil flows into the exhausted oil recipient.

• Open the drain valve and let the oil flow out until the oil level returns within the max. and min. limits

• Close the drain valve.

Fill Plug

Indicator

If the oil level is below the minimum level:

• Open the top fill plug

• Top off with oil until the level returns within the max. and min. limits

• Close the fill plug.

valve

After running the compressor, the lubricant will be very hot. Take care when removing the drain plug and draining the lubricant to avoid burns.

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MCH-22/MCH-30/MCH-36 Open Diesel

Recommended Nitrox Compressor Lubricant is changed when the first 25 hours of use is reached, then change lubricant in 100 hour cycles or annually.

Wear gloves when handling compressor lubricant. If contact with skin is made, wash the skin surface with soap and water.

Always wear goggles when handling compressor lubricant. These materials can cause eye irritation. If you accidentally get lubricant into your eyes, flush with fresh water for 15 minutes and contact a physician if irritation develops.

Compressor lubricant should be incinerated after use i n a li censed f acility in accordance 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. Every time the lubricating oil is changed the oil filter must be changed too. To change the oil continue as described:

• position a recipient under the drain tap (a) so that the oil flows into the exhausted oil recipient (recipient capacity of at least 1.3 gallons or 5 liters required).

• open the oil fill plug (g).

• open the plug (a) 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 pipe (b) back and tighten the fittings (c).

• close the drain tap (a). -remove the fill plug (g).

• fill the oil sump with 1.3 gallons or 5 liters of oil from top oil

plug

• close the oil fill plug (g).

• switch on the compressor and run it depressurized for 30

seconds.

• switch off the compressor and remove the plug from the mains socket.

• check the oil level (h); if it is not between the min. and max. lines proceed with the tasks described

in paragraph “11.7 Checking the oil level”.

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MCH-22/MCH-30/MCH-36 Open Diesel

Tightening Torque Values

Thread

Maximum Torque

M6 - 1/4”

10Nm (7ft-lbs)

M8 - 5/16”

25Nm (18ft-lbs)

M10 - 3/8”

45Nm (32ft-lbs)

M12 - 1/2”

75Nm (53ft-lbs)

M14 - 9/16”

120Nm (85ft-lbs)

M16 - 5/8”

200Nm (141ft-lbs)

CO Moisture

(h) Version 2007 to present

11.9 Tightening Torque Values – Should be done at 25 hour maintenance

The table below shows tightening torques for bolts or hexagonal-head screws or socket screws lubricated with grease, except for specific cases indicated in the manual. Pipe connections (swivel nuts) should be finger tight plus an additional 1/2 turn.

6 bolt 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 be installed per the manufacturer’s instructions provided in the sealed foil packaging. When doing routine maintenance it is highly recommended these indicators are checked for damage and functionality or be replaced.

(option)

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MCH-22/MCH-30/MCH-36 Open Diesel

12.11 Changing the Air intake filter

After putting the compressor into service the intake filter must be changed after the first 50 working hours. The air filter must then be changed every 250 working hours or annually. Every 50 working hours rotate the filtration cartridge inside the filter 90°.

The air intake filter must be changed every 250 working hours or annually. If the compressor is used in a dusty environment the filter change interval should be reduced to every 100 hours. Change the Air filter as follows:

• unscrew the air filter cover (a) by rotating it counter clockwise

• remove the air filter cartridge (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 only just shut down and is hot; wait for the compressor to cool down. All maintenance work must be carried out with the compressor OFF and the power supply lead unplugged from the wall socket.

If the compressor is used in a dusty environment the filter change interval should be reduced to every 100 hours.

12.0 Tension Belt

Belt tension must be checked monthly. The tension belts must be replaced every 500 working hours of the compressor.

12.1 Checking the Tension Belt

To check for proper tension belt tension (a) exert a pressure of approximately 10 Kg on the belts; check that the belts do not flex by more than 1 cm with respect to their original position. Should they flex more than this the belts must be replaced.

Nuvair Page | 24 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

Filter Canister Caps

Condensate

Manual Bleed

HP Filter

X65247

13.0 HP Compressor Filtration Active Carbon Filters / Molecular Sieve

The HP Compressor comes standard with Triplex filtration, utilizing a single Filter Elem ent . Do NOT use any substitute. Change filter element every 60,000 cubic feet of air pumped. If the compressor system is operated in high humidity and/or high temperature, filter element must be changed more often. See 9.1 for details on filter element life factors.

1) Shut down the Compressor System

2) Open Manual Ble ed Drain Valve to drain pressure. Leave valve open.

3) Unscrew the Filt er Canist er Cap.

4) Remove expended E lement from Filter Canister.

5) Inst all New Elem ent place pressure on element to seat the element.

6) Reinsta ll C ap t o Canister.

7) Close Man ual Con densate Valve.

Replacement

parts:

X65677

Tank

Drain Valve

Be sure that all pressure has been relieved from the system prior to opening any filtration canister. Failure to vent pressure from the system prior to opening the canister can lead to serious personal injury or death. Difficulty turning the filter cap may indicate there still is pressure in the filter canister.

Nuvair Page | 25 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

Condensate

Drain Valve for

Auto Drain Valves with

Filter replacement frequency calculation table

Temperature

(°F)

Temperature

(°C)

Filter duration

(hours)

Filter duration

(hours)

MCH-30

MCH-36

104

23.5

31.5

39.5

38.5

59.5

126

108

If the compressor is located in an area where there is high humidity and high heat, the life of all Filtration Elements may be as little as 35% of rated operating capacity. Check the Compressor manual and Appendix for details on Filter Element Life Factors.

13.1 Tem per at ur e effect on filter life.

The active carbon filters are classified as special waste once the compressor has been used to make air: they must be disposed of in compliance with the anti-pollution standards in force.

The Condensate tank must be drained at the end of every working day or every 2 to 3 hours of operation. The 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 wil l depend on the level of humidity in the air. The condensate must be disposed of as per your local “Waste disposal” rules. To Drain the Condensate Tank Open the Manual bleed valve pictured right and drain into a portable container for disposal. The Condensate Tank must be drained daily or every 6 working hours. You may run a hose from the condensate tank into a Larger receiver and leave the ball valve in the open position.

• Manually Open Auto Drain Valves each day

Tank

to check for Condensate and that the Auto Drains are functioning properly.

Condensate Tank

Manual Bleed Valves

Nuvair Page | 26 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

14.0 Rotation Direction

High Pressure Compressor Rotation Check

(Above picture is of the rotation sticker with out the front panel cover on the compressor.)

Always turn on (bump) starter and run motor very briefly to check for proper direction of r otation (see

arrow on belt guard and flywheel).

Operation in reverse direction for extended periods of time will cause a Reciprocating Compressor to run hot and perform poorly and may cause permanent damage.

15.0 Storage

Should the compressor not be used, it must be stored in a dry sheltered area at an ambient temperature of between 32°F and 104°F (0 °C and 40 °C). Store the compressor away from sources of heat, flames or explosive.

15.1 Stopping the machine for a brief period

If you do not intend to use the compressor for a brief period proceed with general cleaning. Once the compressor has cooled down you should wipe off dirt, dust and moisture on the compressor and the surrounding area.

15.2 Stopping the machine for a long period

If you do not intend to use the compressor for a long period, extract the active carbon filter cartridge. Run the compressor for a few minutes without actually filling bottles so as t o flush out all the residual condensate. Stop the compressor, disassemble the intake filter, r estar t the compressor and spray a few drops of oil into the air intake hole so that a light film of lubricant is aspirated and penetrates the interior of the compressor. Stop the compressor and refit the air intake filter. Clean the external parts: eliminate any moisture, salt or oil deposits. Pr ot ect t he compressor from dust and water by storing it in a clean, dry place. Switch off the machine via the main switch and remove the plug from the mains power socket. Proceed with a thorough general clean of all machine parts. During machine down times 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 compressor or any of its parts any longer you must precede with its dismantling and putting out of service. These tasks must be carried out in compliance with t he standards in force.

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MCH-22/MCH-30/MCH-36 Open Diesel

Should the compressor, or a part of it, be out of ser vice its parts must be rendered harmless so they do not cause any danger.

Bear in mind that oil, filters or any other compressor part subject to differentiated waste collection must be disposed of in compliance with the standards in force.

16.1 Waste Disposal

Use of the compressor generates waste that is classified as special. Bear in mind that residues from industrial, agricultural, crafts, commercial and service activities not c lassif ied by quality or quantity as urban waste must be treated as special waste. Deteriorated or obsolete machines are also classified as special waste. Special attention must be paid to active carbon filters as they cannot be included in urban waste: observe the waste disposal laws in force where the compressor is used. Bear in mind that it is compulsory to record loading/unloading of exhausted oils, special wastes and toxic-harmful wastes that derive from heavy/light industry processes. Exhausted oils, special wastes and toxic-harmful waste must be collected by authorized companies. It is especially important that exhausted oils be dispose d of in compliance with the laws in the country of use.

Disassembly and demolition must only be carried out by qualified personnel.

16.2 Dismantling the compressor

Dismantle the compressor in accordance with all the precautions imposed by the laws in force in the country of use. Before demolishing request an inspection by the relevant authorities and relative report. Disconnect the compressor from the electrical system. Eliminate any interf aces the compressor may have with other machines, making sure that interfaces 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 components and group them together according to the materials they are made of: the compressor mainly consists of steel, stainless steel, cast iron, aluminum and plastic parts. Then scrap the machine in compliance with the laws in force in the country of use.

At every stage of demolition observe the safety regulations contained in this manual carefully.

17.0 Instructions for emergency situations

17.1 Fire

In the event of fire use a CO2 extinguisher in compliance with the relevant standards in force. Contact the fire department.

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MCH-22/MCH-30/MCH-36 Open Diesel

18.0 Maintenance Register

18.1 Customer Service

Customers continue to receive assistance after the purchase of a compressor. To this end

NUVAIR has created a customer service network covering the entire country.

Our qualified technicians are at your disposal at any time to carry out maintenance work or repairs; we use only original spare parts so as to ensure quality and reliability.

18.2 Scheduled Maintenance

The scheduled maintenance program is designed to keep your compressor in perfect wor k ing

order. Some simple tasks, described in this manual, can be carried out directly by the customer; others, instead, require that the work be carried out by trained personnel. For the latter we recommend 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 completed by our qualified technician, ar e registered in this maintenance chapter by way of an official stamp, signature and inspection date; the number of working hours is also registered. The maintenance schedules/coupons easily let you know when our assistance service should be contacted to carry out work.

18.3 Usi ng t he com pr essor under heavy duty conditions

Where compressors are used in particularly difficult conditions (high levels of pollution,

presence of solid particulate in suspension etc.), scheduled maintenance tasks must be carried out more frequently as per the advice given by our assistance network.

18.4 Nuvair Customer Care Contact

Telephone: 1-805-815-4044 Fax: 1-805-486-0900 e-mail: info@nuvair.com web: www.nuvair.com/manuals.html

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MCH-22/MCH-30/MCH-36 Open Diesel

19.0 Start-Stop Operation Quick start Guide

11. Check O il Level in Engine

12. Check O il Level in Compressor

13. Open Fuel Pet coc ks on Fuel Tanks

14. Open Manual Drain Valves

15. Turn Key to Start Position a. If engine does not start after 10 seconds of cranking; turn off key and rest starter for

30 seconds.

16. Onc e Engi ne St arts Close Manual Drain Valves

17. Adjus t Throttle to Desired RPM (3000 RPM Max)

18. Check G auges for Proper Stage Pressure a. Oil 5 PSI Min b. 1st Stage 45-60 PSI c. 2nd Stage 230-290 PSI d. 3rd Stage 940-1200 PSI e. 4th Stage 5000 PSI Max

19. To Stop Compressor reduce RPM

20. Turn Key to Off

21. Check t hat Aut omatic Drains are Open and Drain All Moisture

22. Close Fue l Petc ock s on Fuel Tank

Nuvair Page | 30 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

Compressor System Components

Type

Part Number

Compressor Lubricant, Food Grade, 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

X65677

Triplex Filter

X65247

Blue Canisters

Absorbent Filter

SC000543-M

Triplex Filter

SC000543-MHC

Air Intake Filter Element

SC000543

Co2 Moisture Sensor Element

592-6

Oil Filter

Oil Filter MCH 36-06-007

FO-220030-PP

20.0 Spare Parts List

HP Air Compressor parts list.

Nuvair Page | 31 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

Date

Technician Name

Service Performed

21.0 Service Record Log

Nuvair Page | 32 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

Item

Grade D

Grade E

Oxygen

19.5-23.5%

20-22%

Carbon Dioxide

(maximum)

1000 PPM

Carbon Monoxide

(maximum)

10 PPM

Hydrocarbons

(maximum)

Not specified

25 PPM

Water Vapor

(maximum)

Not specified

Dew Point

(maximum) (1)

Not specified

Oil & Particles

(maximum) (2)

5 mg/m3

5 mg/m3 Odor

None

Filter

Temperature

Ambient

Temperature

Filter Element

Life Factor

53ºF (12ºC)

41ºF (5ºC)

2.6 x Life

62ºF (17ºC)

50ºF (10ºC)

1.8 x Life

71ºF (23ºC)

59ºF (16ºC)

1.35 x Life

80ºF (27ºC)

68ºF (20ºC)

1 x Life

89ºF (32ºC)

77ºF (25ºC)

0.8 x Life

96ºF (36ºC)

84ºF (29ºC)

0.55 x Life

105ºF (41ºC)

93ºF (34ºC)

0.45 x Life

114ºF (46ºC)

102ºF (39ºC)

0.35 x Life

22.0 Appendix Supply and Breathing Air Specifications

All supply and breathing air must meet the following requirements of CGA G-7.1-1997. Supply air delivered to the Membrane System must be purified to meet Grade D or E quality, and periodic air quality testing to assure compliance is recommended. All breathing air for diving produced by the downstream compressor must be purified to meet Grade E quality, and periodic air quality t es t ing t o assure compliance is mandatory.

Notes: (1) Dew Point of supply air must be >10oF (6oC) colder than coldest ambient air expected (2) Supply air delivered to the Membrane System must contain <0.003 PPM Oil Vapor

All breathing Nitrox produced for diving must be purified to meet these same requirem ents, except for oxygen content. Nitrox oxygen content must measure wi t hin + / - 1% O

of the specified value of the

mixture using a properly calibrated Oxygen Analyzer (i.e. Nitrox produced w it h a target content of 32% O2 must measure in the range of 31-33% O2). Periodic air quality testing to assure compliance is mandatory.

Filter Element Life Factors

Breathing air filter element life is typically rated by manufacturer based on an air temperature of 80ºF at the filter inlet. Under normal operation this temperature is 12ºF (5ºC) warmer than the ambient air, resulting in an equivalent ambient temperature rating at 68ºF (20ºC).

To determine element life at a different ambient temperature, multiply the rated life by the life factor listed below:

Nuvair Page | 33 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

Material Safety Data Sheets

Nuvair™ 455 Premium Synthetic Food Grade Ai r/Nitrox Compressor Lubricant

Effective Date: 03/19/2010 I. Product Identification: Trade Name: Nuvair 455 Chemical Name: Polyalphaolefin Chemical Family: Synthetic Hydrocarbon / Esters II. Components & Hazard Statement: This product is non-hazardous. The product contains no kno wn carcinogens. No special warning labels are r equired under OSHA CFR 1910.1200. This product com pli es with FDA 21 CFR 178.3570 regarding lubricants for incidental food contact. III. Physical Data:

Viscosity:............................................................................................................... 100 cst. @40°C

Specific Gravity (Water = 1.0): .................................................................................... 0.85

Boiling Point: .........................................................................................................N.A.

Vapor Pressure: .......................................................................................................... Negligible

Appearance & Odor: .............................................................................. Clear – with little odor

Solubility in Water: ...........................................................................Negligible

IV. Fire & Explosion Hazard Data:

Flash point: ......................................................................................................... 464°F/240°C

Autoignition Temperature: .................................................................................. Not Established

Flammability Limits: ............................................................................................ Not Established

Extinguishing Media: ........................................................Dry Chemical; CO2 Foam; Water Spray

Special Fire Fighting Procedure: ...... ............ Burning may produce irritating/noxious fumes. Firefighters should use

NIOSH/MNSA approved self-contained breathing apparatus. Use water to cool fire-exposed co ntainers to prevent pressure build-up. V. Reactivity Data: Stability: This product is stable and will not rea ct with water.

Materials to Avoid: ................................................................................... Avoid strong oxidizers

Hazardous Decomposition Products: ...................................... Carbon monoxide, Carbon dioxide

VI. Health Information:

Eye Contact: ................. Flush eyes with water for 15 minutes. Call a physician if irritation develops.

Skin Contact: ............................................................................... Wash skin with soap and water.

Inhalation: ....................................................................................................Remove to fresh air.

Ingestion: ........................................First aid not normally required. If uncomfortable, call physician.

VII. Health Hazard Data:

Exposure Limit: .......................................................................................................Not Applicable

Effects of Overexposure: .................... Low oral and dermal toxicity. Prol onged or repeated exposure may cause irritation,

nausea, and vomiting. VIII. Employee Protection: For general personal hygiene, wash hands thoroughly after handling material. Avoid contact with skin and eyes. Chemical impervious gloves are not required, but may be recommended for prolonged exposure. Use in a well ventilated area. IX. Storage, Spill, & Disposal Procedures: Storage: Store in clean, dry area. Spills: Use absorbent materials to soak up fluid. Disposal: Incinerate this product and all as sociated wastes in a licensed facility in accordance with Federal, state, and local regulations. X. Hazard Rating Information: NFPA Health: 0 Flammability: 1 Reactivity: 0 Personal Protection: B This information contained herein is based on the data available to us and is believed to be true and accurate. Nuvair makes no warranty, expressed or implied, rega rding the accuracy of this data or the results to be obtai ned from the use thereof. Nuvair assumes no responsibility f or i nj ury from the use of this product.

Nuvair Page | 34 www.nuvair.com

MCH-22/MCH-30/MCH-36 Open Diesel

Nuvair™ 751 Premium Synthetic Diester Based Ai r/Nitrox Compressor Lubricant

Effective Date: 3/10/2010 Supercedes: I. Product Identification: Trade Name: Nuvair 751 Chemical Name: Diester/organic compo und bl end Chemical Family: Diester II. Components & Hazard Statement: This product is non-hazardous. The product contains no kno wn carcinogens. No special warning labels are r equired under OSHA CFR 1910.1200. SARA TITLE 111 S ECTION 313 (40 CFR PART 372): This product is not regulated under Section 313 and 40 CFR Part 372. III. Physical Data:

Viscosity: ....................................................................................................... 146 cst. @40°C

Specific Gravity (Water = 1.0): .............................................................................................. 0.94

Boiling Point: ...................................................................................................... Not determined

Vapor Pressure: ....................................................................................................... Negligible

Appearance & Odor: ............................................................................ Amber – Mild odor

Solubility in Water: .................................................................................................... Negligible

Other Data: ...................................................................................Non-toxic USDA H-2 approved

IV. Fire & Explosion Hazard Data:

Flash point: ............................................................................................... 520°F / 271°C

Autoignition Temperature: ............................................................ 765°F ASTM D-2155

Flammability Limits: ........................................................................................... Not Established

Extinguishing Media: .........................................................Dry Chemical; CO2 Foam; Water Spray

Special Fire Fighting Procedure: ......................................... Burning may produce irritating/noxious fumes. Firefighters

should use NIOSH/MNSA approved self-contained breathing apparatus. Use water to cool fi re-ex posed containers to prevent pressure build-up. V. Reactivity Data:

Stability: .......................................................... This product is stable and will not react with water.

Materials to Avoid: ................................................................................... Avoid strong oxidizers

Hazardous Decomposition Products: .......................................... Carbon monoxide, Carbon dioxide

VI. Health Information:

Eye Contact: .................. Flush eyes with water for 15 minutes. Call a physician if irritation dev elops.

Skin Contact: ............................................................................. Wash skin with soap and water.

Inhalation: ......................................................................................................Remove to fresh air.

Ingestion: .......................................First aid not normally required. If uncomfortable, call physician.

VII. Health Hazard Data:

Exposure Limit: ...................................................................................................Not Applicable

Effects of Overexposure: .................................Low oral and dermal toxicity. Prolonged or repeated exposure may cause

irritation, nausea, and vomiting. VIII. Employee Protection: For general personal hygiene, wash hands t horoughly after handling material. Avoid contact with skin and eyes. Chemical impervious gloves are not required, but may be recommended for prolonged exposure. Use in a well ventilated area. IX. Storage, Spill, & Disposal Procedures:

Storage: ............................................................................................................Store in clean, dry area.

Spills: .................................................................................Use absorbent materials to soak up fluid.

Disposal: ...................................... Incinerate this product and all associated wastes in a licensed facility in accordance

with Federal, state, and local regulation s. X. Hazard Rating Information: NFPA Health: 0 Flammability: 1 Reactivity: 0 Personal Protection: B This information contained herein is based on the data available to us and is believed to be true and accurate. Nuvair makes no warranty, expressed or implied, rega rding the accuracy of this data or the results to be obtained from the use thereof. Nuvair assumes no responsibility f or i nj ury from the use of this product.

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MCH-22/MCH-30/MCH-36 Open Diesel

NUVAIR COMPRESSOR SYSTEM WARRANTY

NUVAIR extends a limited warranty, which warrants the compressor System to be free from defects in materials and workmanship under normal use and service for a limited period. All other Original Equipment Manufacturer (OEM) components used in the system are warranted only to the extent of the OEM’s warranty to NUVAIR. NUVAIR makes no warranty with respect to these OEM components, and only warrants the workmanship that NUVAIR has employed in the installation or use of any OEM component. This warranty is not transferable.

NUVAIR will, at it’s discretion and according to the terms as set forth within, replace or repair any materials which fail under normal use and service and do not exhibit any signs of improper maintenance, misuse, accident, alteration, weather damage, tampering, or use for any other than the intended purpose. Determination of failure is the responsibility of NUVAIR, which will work together with the customer to adequately address warranty issues. When any materials are repaired or replaced during the warranty period, they are warranted only for the remainder of the original warranty period. This warranty shall be void and NUVAIR shall have no responsibility to repair or replace damaged materials resulting directly or indirectly from the use of repair or replacement parts not approved by NUVAIR.

Maintenance Items:

Any materials which are consumed, or otherwise rendered not warrantable due to processes applied 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 system documentation.

Return Policy:

Application for warranty service can be made by contacting NUVAIR during regular business hours and requesting a Return Material Authorization number. Materials that are found to be defective must be shipped, freight pre-paid, to the NUVAIR office in Oxnard, California. Upon inspection and determination of failure, NUVAIR shall exercise its options under the terms of this policy. Warranty serviced materials will be returned to the customer via NUVAIR’s preferred shipping method, at NUVAIR’s expense. Any expedited return shipping arrangements to be made at customer’s expense must be specified in advance.

Limitation of Warranty and Liability:

Repair, replacement or refund in the manner and within the time provided shall constitute NUVAIR’S sole liability and the Purchaser’s exclusive remedy resulting from any nonconformity or defect. NUVAIR shall not in any event be liable for any damages, whether based on contract, warranty, negligence, strict liability or otherwise, including without limitation any consequential, incidental or special damages, arising with respect to the equipment or its failure to operate, even if NUVAIR has been advised of the possibility thereof. NUVAIR makes no other warranty or representation of any kind, except that of title, and all other warranties, express or implied, including warranties of merchantability and fitness for a particular purpose, are hereby expressly disclaimed. No salesman or other representative of NUVAIR has authority to make any warranties.

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