Nuvair Voyager IV User And Maintenance Manual

Nitrox system

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User and Maintenance Manual
Voyager IV
Nitrox System
Rev. 12.18

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Summary of Contents for Nuvair Voyager IV

  • Page 1 User and Maintenance Manual Voyager IV Nitrox System Rev. 12.18...
  • Page 2 Every effort was made to ensure the accuracy of the information contained within. Nuvair, however, retains the right to modify its contents without notice. If you have problems or questions after reading the manual, stop and call Nuvair at +1 805 815 4044 for information.
  • Page 3: Table Of Contents

    Voyager IV Nitrox System Table of Contents Introduction Introduction Safety Warnings Safety and Operation Precautions Legal Precautions Theory of Operation Low Pressure Air Compressor Technical Data High Pressure Compressor Technical Data System Components Nitrox System Specifications 10.0 Nitrox System Component Identification 11.0...
  • Page 4: Introduction

    However, it is up to you to carefully read this manual and make the appropriate decisions about system safety. This manual will assist you in the proper setup, operation and maintenance of the Nuvair Voyager IV Nitrox System. Be sure to read the entire manual.
  • Page 5: Safety Warnings

    Voyager IV Nitrox System Safety Warnings 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.
  • Page 6 Voyager IV Nitrox System The use of enriched air Nitrox does not eliminate the risk of decompression sickness (DCS) in diving. Decompression sickness can lead to permanent disability or death. Do not pump Nitrox mixtures at pressures above the HP compressor manufacturer’s rating, and never above 3600 psi (250 bar).
  • Page 7: Safety And Operation Precautions

    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 8: Legal Precautions

    Voyager IV Nitrox System Legal Precautions It is highly recommended that a Nitrox fill log be maintained when filling Scuba cylinders to document the following information. This log must be of permanent binding style with no loose pages. • Fill date and time of day •...
  • Page 9: Theory Of Operation

    Specifications for Grade D air are provided in the Appendix. The Voyager IV’s Membrane System is rated for a maximum feed air pressure of 300 psi (21 bar) and has been configured to work well with the 175 psi (12 bar) maximum pressure delivered by the LP Compressor.
  • Page 10 Voyager IV Nitrox System Low Pressure Compressor Technical Data Capacity and Power Consumption: • Normal working pressure – 90-175 psi (6-12 bar) • Capacity at normal working pressure – 60 CFM (1700 L/min) • Shaft power at normal working pressure – 20 hp (15 kW) •...
  • Page 11: High Pressure Compressor Technical Data

    Voyager IV Nitrox System High Pressure Compressor Technical Data See Separate Manual for Coltri HP Compressor Specs reflect “MCH 30” Model Capacity and Power Consumption: • Normal working pressure – 3600 psi (250 bar) • FAD Flow 17.5 CFM (495 L/min) •...
  • Page 12: System Components

    • Low Pressure Compressor, including: ♦ Magnetic Motor Starter ♦ Hour Meter ♦ External Lubricant Sight Gauge, Fill, and Drain ♦ Nuvair 546 Food Grade Rotary Screw Compressor Lubricant ♦ Large oil/air cooler with exhaust fan • Refrigerated Air Dryer ♦ Automatic Condensate Drain •...
  • Page 13: Nitrox System Specifications

    Voyager IV Nitrox System Nitrox System Specifications Delivery @ 175 psi (12 bar) 60 CFM FA (1700 L/min) Horsepower – 20 hp Electric (15 kW) Length 37 in (94 cm) Width 68 in (173 cm) Height 70 in (178 cm)
  • Page 14 Voyager IV Nitrox System 10.0 Nitrox Voyager IV System Component Identification LP Back Low Pressure Pressure Compressor Regulator Pressure Momentary Adjustment Stage Gauge On Switch Knob - Adjust Pressure Fill & Hour Nitrox O Gauges Oxygen Meter Here. Analyzer Cabinet...
  • Page 15 Voyager IV Nitrox System LP Air Intake HP & LP Oil Fill Final HP LP Oil Condensate Filter Tower LP Oil/Air Separator Compressor HP & LP Oil Lubricant Drains Level Sight Gauge HP Motor Control Electric LP Motor LP Feed Air...
  • Page 16 Voyager IV Nitrox System 11.0 System Drawing / Schematic Nuvair www.nuvair.com Page...
  • Page 17: System Flow Chart

    Voyager IV Nitrox System 12.0 System Flow Chart LP Compressor Produces LP LP Aftercooler Removes Feed Air (Supply Air) Moisture BP Regulator Controls the amount of Feed Air pumped by the compressor Refrigerated Air Drier cools Voyager IV the air...
  • Page 18: Installing The Nitrox System

    Voyager IV Nitrox System 13.0 Installing the Voyager IV Nitrox System If any information in this manual conflicts with any of the other manuals call Nuvair before proceeding. Ambient room temperature should never exceed 100 F (38 C) during operation of the Nitrox System.
  • Page 19: Electrical Power Connection

    Voyager IV Nitrox System 13.3 Electrical Power Connection Never use extension cords to provide power to your Nitrox system. The system must be properly wired according to national and local electrical codes by a qualified electrician. Improper wiring may lead to fires, which can cause serious personal injury or death.
  • Page 20: Check Compressor Lubricant Levels

    Voyager IV Nitrox System 13.4 Check Compressor Lubricant Levels Check lubricant levels before starting fill operations and add lubricant as required. Use only the lubricants specified. *To read LP oil level, turn the LP Compressor knob to Start position, then immediately to the Off position.
  • Page 21: Producing Nitrox

    Voyager IV Nitrox System Pre-Operation of Compressor Before Producing Nitrox 14.1 Calibrate Oxygen Analyzers Gas production is monitored with the Permeate Oxygen Analyzer before entering the HP Compressor to obtain a rough estimate of %O (+/- 2%); however, do not rely on this reading as an indication of at the HP Compressor outlet.
  • Page 22 Voyager IV Nitrox System Compressor Controls On/Off Knob for HP Compressor Fill Oxygen Analyzer Permeate Oxygen Analyzer Calibration Knob Provides Precise Reading Provides Rough Reading 1) Turn on the High Pressure Compressor and allow to run for 1-2 minutes or until Analyzers stabilize.
  • Page 23: Flow To Membrane And Setting Proper Pressure

    Never allow any gas stream to be directed at any part of your body. Do not change the temperature setting on the Thermostat Control without contacting Nuvair. Changes in temperature settings may cause Membrane damage. A damaged membrane will not produce the correct Nitrox mixture which can lead to severe personal injury if the gas is used for diving purposes without proper analysis.
  • Page 24 Voyager IV Nitrox System The use of enriched air Nitrox does not eliminate the risk of decompression sickness (DCS) in diving. Decompression sickness can lead to permanent disability or death.\ The Permeate O Analyzer supplies oxygen readings that can vary +/- 2% O...
  • Page 25 Voyager IV Nitrox System Only provide Scuba cylinder Nitrox fills to customers who have proof of Nitrox training and certification. Improper use of Nitrox can be fatal. This system is not cleaned for oxygen service and not all components are compatible with gas mixtures containing greater than 40% oxygen.
  • Page 26: Pumping Air

    4) After filling is complete, close cylinder valve, vent the bleed valve and remove the cylinder. 5) Test the Nitrox %O in the cylinder using an independent Oxygen Analyzer such as the Nuvair O Quickstick . Calibrate analyzer before use in accordance with manufacturer’s instructions.
  • Page 27: Shutting Down

    Voyager IV Nitrox System Always use Oxygen Analyzers to monitor oxygen content of any gas flowing through the System. Both air and Nitrox are subject to variations in oxygen content. 15.5 Shutting Down 1) When the Storage Banks are finished filling and tank valves are closed, the Nitrox System will automatically shut down at the pressure set on the pressure switch (3600 psi).
  • Page 28: Maintenance

    3) Check LP Air Filtration for condensate and proper operation of condensate drains. 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.
  • Page 29 Lubricants. See Section 17.3 and LP Compressor manual for details. 2) HP Compressor Lubricant: Change Compressor Lubricant every 100 hours or annually, whichever comes first. Only use lubricants rated for use with Nitrox, such as Nuvair 455. Never mix Compressor Lubricants. See HP Compressor manual for details.
  • Page 30 Voyager IV Nitrox System 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.
  • Page 31: Lp Feed Air Filtration

    Voyager IV Nitrox System 17.4 LP Feed Air Filtration Special attention needs to be given to the arrangement of the four LP Feed Air Filtration Elements and Bowls. Properly reinstall each Element and Bowl to the correct Housing. Improper sequence can cause damage to downstream components.
  • Page 32 Voyager IV Nitrox System Changing LP Filtration Elements Change Filter Elements every 500 hours. If the Nitrox System is operated in high humidity and/or high temperature, Filter Elements must be changed more often. See Appendix for details on Filter Element Life Factors.
  • Page 33: Hp Compressor Filtration

    Voyager IV Nitrox System 17.5 HP Compressor Filtration The HP Compressor comes standard with Triplex filtration. Do NOT use any substitute. Change Filter Elements every 60,000 cubic feet of air or Nitrox processing. If the Nitrox System is operated in high humidity and/or high temperature, Filter Element must be changed more often.
  • Page 34: Spare Parts List

    Voyager IV Nitrox System 17.6 Spare Parts List See LP and HP Compressor manuals for Compressor parts lists. Other Nitrox System components and related items are listed below. Nitrox System Components Type Part Number LP Compressor Consumables Rotary Screw Compressor...
  • Page 35 Voyager IV Nitrox System 17.7Service Record Log Date Technician Name Service Performed Nuvair www.nuvair.com Page...
  • Page 36 Voyager IV Nitrox System 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.
  • Page 37 • To prevent Membrane damage, drain all low pressure filter and volume tank condensate on a daily basis. • If you become aware of an operational fault, stop using the equipment immediately and contact Nuvair for assistance. Maintenance: • Change low pressure filter elements on a schedule determined by filter capacity and ambient temperature and humidity.
  • Page 38 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 40 Nuvair Phone +1 805 815 4044 Fax +1 805 486 0900 1600 Beacon Place Oxnard, CA 93033 USA info@nuvair.com www.nuvair.com Rev. 12.18...

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