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Summary of Contents for Nuvair MCH13
- Page 1 Operation Manual Water Cooled MCH13 · MCH16 Electric Compressor SKU 8019-WC · 8022-WC www.nuvair.com...
- Page 2 Nuvair will make every effort to update manuals as parts and functional aspects change. However, the look or location of components on your product may differ from those in this manual if improvements have been made that do not affect functionality or operational procedures.
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Page 3: Table Of Contents
Water Cooled MCH13 · MCH16 Electric Table of Contents Introduction ..............................6 Symbol Conventions ............................... 6 System Description ..............................6 Required Operator Training ............................ 7 Important Information for the User........................7 Foreword ................................. 8 Assistance ................................8 Responsibility ................................9 Purpose of the Machine ............................9 Where the Compressor May be Used ........................ - Page 4 Water Cooled MCH13 · MCH16 Electric Tank Refill Procedure ............................ 24 10.0 Maintenance ..............................27 10.1 Foreword ................................27 10.2 General .................................. 27 10.3 Unscheduled Work ..............................27 10.4 Scheduled Maintenance Table ..........................28 10.5 Troubleshooting ..............................29 10.6 Checking the Oil Level ............................29 10.7...
- Page 5 Figure 2. Protective clothing examples..........................17 Figure 3. “Do Not Use” sign..............................17 Figure 4. Safety labels used on Nuvair compressors......................19 Figure 5. Water cooled compressor block parts diagram..................... 20 Figure 6. Illustration of proper positioning........................... 22 Figure 7.
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Page 6: Introduction
System Description Nuvair MCH13 · MCH16 water cooled high-pressure air compressors can be used in a wide variety of continuous duty breathing air or industrial air applications. Powered by an electric motor, the MCH13 · MCH16 water cooled compressor is compact in design and portable. -
Page 7: Required Operator Training
With several options available to meet your specific needs, the portability and dependability of the Nuvair water cooled MCH13 or MCH16 makes this an ideal continuous duty compressor. It delivers up to 5000 psi (345 bar) at 11.3 SCFM (320 L/min). -
Page 8: Foreword
Never postpone repairs and have them carried out by specialized personnel only; use only original spare parts. 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... -
Page 9: Responsibility
Completing the checklist will streamline your customer support experience. Responsibility Nuvair considers itself exonerated from any responsibility or obligation regarding injury or damage caused by: Failure to observe the instructions contained in this manual that concern the running, use and •... - Page 10 Using the compressor under conditions or for purposes other than those indicated in this manual • is prohibited, 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 •...
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Page 11: Where The Compressor May Be Used
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. -
Page 12: Safety And Operation Precautions
Water Cooled MCH13 · MCH16 Electric WARNING The equipment you will be using 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 your body. -
Page 13: High Risk Areas Of Compressor
22. Check hoses for weak or worn conditions before each use and make certain that all connections are secure. The user of any compressor or nitrox system 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. -
Page 14: Compressor Overview
Water Cooled MCH13 · MCH16 Electric Compressor Overview In this section are representative images of the water cooled MCH13 · MCH16 compressor powered by electric motor. The layout of your water cooled compressor may be customized with optional equipment and/or made-to-order framing. Because of this, your compressor’s appearance may differ from what is represented in this manual. -
Page 15: System Components
Water Cooled MCH13 · MCH16 Electric System Components All features of the standard MCH13 · MCH16 apply to this product in addition to the custom features of a water cooled compressor. Standard Equipment Coltri MCH13 or MCH16 High Pressure Air Compressor Rugged 5000 psi (345 bar) three-stage block 5.5 hp or 7.5 hp Electric Motor... -
Page 16: Water Cooled Compressor Operating Notes
4. Connected plugs as labeled at the low oil switch, air high temperature switch, and water high temperature switch. The unit will not run if any of these connections are missing. Questions? Problems? Stop Work and Call Nuvair for Assistance +1.805.815.4044... -
Page 17: General Safety Rules
Water Cooled MCH13 · MCH16 Electric General Safety Rules The compressor must only be used by qualified personnel. They must fully understand the arrangement and function of all the controls, instruments, indicators, warning lights and the various information labels. Protective Clothing... -
Page 18: Keep The Compressor Clean
Use only manufacturer recommended tools. Do not use worn, damaged or poor quality or improvised tools as they can cause injury. WARNING Nuvair cannot be held liable for any damage or injury caused by using tools that are not prescribed or are modified without authorization. Keep the Compressor Clean Oil and grease stains, scattered tools or broken pieces constitute a danger to personnel as they may cause slips and falls. -
Page 19: Safety Information Labels: Location & Description
English of the hazard. Decals used on the Water Cooled series are pictured below. Your compressor may you some or all of the labels based upon optional equipment. Figure 4. Safety labels used on Nuvair compressors. Nuvair Page 19 www.Nuvair.com... -
Page 20: Typical Water Cooled Compressor Parts
Water Cooled MCH13 · MCH16 Electric Typical Water Cooled Compressor Parts Figure 5. Water cooled compressor block parts diagram. Nuvair Page 20 www.Nuvair.com... -
Page 21: Compressor Specifications
Water Cooled MCH13 · MCH16 Electric Compressor Specifications Your compressor specifications may vary based upon customizations ordered. Model Water Cooled MCH13 Water Cooled MCH16 Fill Time* ~11 Minutes ~9 Minutes Charging Rate* 8.4 SCFM (238 L/min) 11.3 SCFM (320 L/min) -
Page 22: Unpacking And Installation
• 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. Place the system in a permanent location •... -
Page 23: Checks For The Start Of Each Working Day
Checks for 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. Lubricating Oil Level Check Check that the level of lubricating oil is within acceptable limits (i.e., between minimum and maximum in the oil level... -
Page 24: Gauge
Water Cooled MCH13 · MCH16 Electric Gauge Final Fill Pressure The gauge atop the final condensate separator indicates the pressure as it exits the compressor. Auto Drain Bypass Activating the auto drain bypass allows for a loadless start of the compressor. -
Page 25: Figure 12. Tank Refill Illustration (Din Valve Pictured)
Water Cooled MCH13 · MCH16 Electric NOTICE During refill, the operator must be in the work area. During the tank refill phase, it is advisable to submerge tanks in cold water to reduce the drop in pressure that accompanies tank cooling. - Page 26 Water Cooled MCH13 · MCH16 Electric Disconnect the tank fill valve. • Never drain a tank completely, not even for seasonal storage or long periods of inactivity. Pressure prevents internal damage caused by moisture intrusion. Nuvair Page 26 www.Nuvair.com...
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Page 27: Maintenance
Water Cooled MCH13 · MCH16 Electric 10.0 Maintenance 10.1 Foreword To obtain the best possible performance from the compressor and ensure a long working 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. -
Page 28: Scheduled Maintenance Table
Safety Valves Checking and cleaning Change ¹ Nuvair recommends oil changes every 250 hours of runtime, or once per year, whichever is less. ² Change oil every 100 hours when compressor is used with nitrox. Years Annual Maintenance Air Intake Filter ... -
Page 29: Troubleshooting
Water Cooled MCH13 · MCH16 Electric 10.5 Troubleshooting Problem Cause Solution Compressor overheats • Cooling tubes dirty • Clean cooling tubes • Incomplete valve closure (causing • Contact technical support overload of another stage) • Poor ventilation • Contact technical support Rotation speed and flow rate •... -
Page 30: Changing The Lubricating Oil And Filter
According to Coltri specifications, a new compressor using synthetic lubricants can operate up to 1000 hours between oil changes. At Nuvair, we prefer to have oil changed every 250 hours (or once per year, whichever interval is less) unless you are taking advantage of an oil analysis program that confirms the oil is still good. -
Page 31: Tightening Torque Values
Water Cooled MCH13 · MCH16 Electric 10.8 Tightening Torque Values The table below shows tightening torques for bolts or hexagonal-head or cylindrical-head recessed hexagonal 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. -
Page 32: Transmission Belts
Check that the belt is inserted perfectly in the grooves of the two pulleys and • that belt tension is correct. If belts (b) tension is not correct contact Nuvair for technical assistance. 10.13 Changing Air Filtration Cartridge/s Correct filtering system component maintenance ensures that the quality of the air exiting the compressor complies with the international breathing air standards or industrial air uses. -
Page 33: Figure 21. Changing Air Filter Cartridge
Water Cooled MCH13 · MCH16 Electric Nuvair MCH13 · MCH16 Water Cooled compressors do not have onboard air filtration. For proper industrial or breathing air applications, an externally mounted filtration system, like SKU 6071-2X35-6K (Figure 20), is required. The air filtration element/s (cartridge/s) must be replaced at intervals calculated on the characteristics of the environment in which the compressor is located. -
Page 34: Condensate Discharge
Water Cooled MCH13 · MCH16 Electric WARNING 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. -
Page 35: Safety Valves
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. Should safety valves fail to work properly, contact Nuvair for technical assistance. Nuvair Page 35... -
Page 36: Figure 25. Safety Valve Locations
Water Cooled MCH13 · MCH16 Electric Figure 25. Safety valve locations. Nuvair Page 36 www.Nuvair.com... -
Page 37: Storage
Water Cooled MCH13 · MCH16 Electric 11.0 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. -
Page 38: Dismantling The Compressor
13.0 Maintenance Register 13.1 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. 13.2 Scheduled Maintenance The scheduled maintenance program is designed to keep your compressor in perfect working order. Some simple tasks, described in this manual, can be carried out directly by the customer;... -
Page 39: Using The Compressor Under Heavy Duty Conditions
Web: www.Nuvair.com/ 14.0 Spare Parts List Compressor System Components Type Part Number Compressor Lubricant, Food Grade (nitrox compatible) Nuvair 455 (1 gal) 9406 Compressor Lubricant, Industrial Grade Nuvair 751 (1 gal) 9403 Drying Filter Cartridge NUV65677-M-B High Pressure Air Filter Elements for CAN-35... -
Page 40: Service Log
Water Cooled MCH13 · MCH16 Electric 15.0 Service Log Date Technician Name Service Performed Nuvair Page 40 www.Nuvair.com... -
Page 41: Appendix
Water Cooled MCH13 · MCH16 Electric 16.0 Appendix 16.1 Supply and Breathing Air Specifications All supply and breathing air must meet the following requirements of CGA G-7.1-1997. Periodic air quality testing to assure compliance is recommended. All breathing air for diving produced by a downstream compressor must be purified to meet Grade E quality, and periodic air quality testing to assure compliance is mandatory. -
Page 42: Nuvair Compressor System Warranty
Nuvair has employed in the installation or use of any OEM component. This warranty is not transferable. Nuvair will, at its 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. - Page 43 Nuvair to contact the user regarding this product. The user must notify Nuvair of any change of address by the user or sale of the product. All changes or revisions to this manual must be recorded in this document to ensure that the manual is up to date.
- Page 44 Water Cooled MCH13 · MCH16 Electric Nuvair Phone +1.805.815.4044 +1.805.486.0900 Address 1600 Beacon Place Oxnard, CA 93033 USA Email info@nuvair.com Website www.Nuvair.com Rev. 04-2024 Nuvair Page 44 www.Nuvair.com...
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