Nuvair Voyager IV Operating instructions

User and Maintenance Manual
Voyager IV
Nitrox System
Rev. 12.18

Voyager IV Nitrox System
Nuvair www.nuvair.com
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If you have any questions on this equipment please contact Technical Support at:
Nuvair
1600 Beacon Place
Oxnard, CA 93033
Phone: +1 805 815 4044
Fax: +1 805 486 0900
Email: info@nuvair.com
Hours: Monday through Friday
8:00 AM to 5:00 PM PST USA
This User 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 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.

Voyager IV Nitrox System
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Table of Contents
Introduction
1.0 Introduction
2.0 Safety Warnings
3.0 Safety and Operation Precautions
4.0 Legal Precautions
5.0 Theory of Operation
6.0 Low Pressure Air Compressor Technical Data
7.0 High Pressure Compressor Technical Data
8.0 System Components
9.0 Nitrox System Specifications
10.0 Nitrox System Component Identification
11.0 System Drawing/Schematic
12.0 System Flow Chart
Setup, Operation, and Maintenance
13.0 Installing the Nitrox System
13.1 Precautions
13.2 Attaching Nitrogen Discharge Hose (Optional)
13.3 Electrical Power Connection
13.4 Check Compressor Lubricant Levels
13.5 Control Pane Description
14.0 Pre-Operation Instructions
14.1 Oxygen Analyzer Calibration
15.0 Producing Nitrox
15.1 Flow to Membrane and Setting Proper Pressure
15.2 Final Adjustments Before Pumping Nitrox
15.3 Pumping Nitrox
15.4 Pumping Air
15.5 Shutting Down
16.0 Nitrox Operational Notes
16.1 Correlation of Feed Air Pressure to Oxygen Content
16.2 Hot Fills
17.0 Maintenance
17.1 Daily Maintenance
17.2 Routine Maintenance
17.3 Compressor Lubricant
17.4 LP Feed Air Filtration
17.5 HP Compressor Filtration
17.6 Spare Parts List
17.7 Service Record Log
Appendix
Supply and Breathing Air Specifications
Filter Element Life Factors
Owner’s Warranty Responsibilities
Warranty
Additional Manual Included:
Nuvair Pro O2Oxygen Analyzer User Manual

Voyager IV Nitrox System
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Page 4
1.0 Introduction
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 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.
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 introduced 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.

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2.0 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.
The equipment you will be using to manufacture Nitrox (oxygen rich air) 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.
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.
Pure nitrogen is a colorless, odorless, tasteless gas that will not support life.
Breathing gas mixtures containing more than 84% nitrogen at surface pressures
will lead to unconsciousness and may cause death.
The nitrogen discharge from the membrane system must be vented to the
exterior of any closed building, boat, or similar enclosed space. Breathing gas
mixtures containing more than 84% nitrogen at surface pressure will lead to
unconsciousness and may cause death.
Do not use any form of mineral oil or synthetic lubricant not rated for Nitrox in
any compressor in this system. Use only the recommended Nitrox compressor
lubricant. Never mix the Nitrox compressor lubricant with other lubricants.
Remove all existing lubricant and replace with the proper Nitrox compressor lubricant prior to
installing the membrane system. The use of improper lubricants can lead to fire or explosions,
which may cause serious personal injury or death.
Do not use this system to produce Nitrox mixtures containing more than 40%
oxygen. Pumping Nitrox mixtures with higher concentrations of oxygen may
lead to fires or explosions, which can cause serious personal injury or death.

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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). The system is not
rated for pressures above 3600 psi (250 bar). Higher pressures may lead to
explosions which may cause serious personal injury or death.
Ambient room temperature should never exceed 100oF (38oC) during operation of the Nitrox
System. Operation at higher temperatures may lead to system damage and malfunction. 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.
Warnings Graphics Defined:
Moving belts Electrocution Fire Eye protection Gas inhalation
Skin damage Explosion Explosion Electrocution Machinery
Abbreviations commonly used in this manual:
psi Pounds per Square Inch CFM Cubic Feet per Minute
HP High Pressure RPM Rotations per Minute
LP Low Pressure PPM Parts per Million
O2Oxygen L/min Liters per Minute
CO Carbon Monoxide O2% Oxygen Percentage of Gas
CO2Carbon Dioxide BP Back Pressure

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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 or
maintenance is hazardous to personnel. In addition to the many obvious safety precautions, those listed
below must also be observed:
1) Read all instructions completely before operating any compressor or Nitrox System.
2) For installation, follow all local electrical and safety codes, as well as the National Electrical Code
(NEC) and the Occupational Safety and Health Administration (OSHA) standards.
3) Electric motors must be securely and adequately grounded. This can be accomplished by wiring with a
grounded, metal-clad raceway system to the compressor starter; by using a separate ground wire
connected to the bare metal of the motor frame; or other suitable means.
4) Protect all power cables from coming in contact with sharp objects. Do not kink power cables and
never allow the cables to come in contact with oil, grease, hot surfaces, or chemicals.
5) Make certain that power source conforms to the requirements of your equipment.
6) Pull main electrical disconnect switch and disconnect any separate control lines, if used, before
attempting to work or perform maintenance. “Tag Out” or “Lock Out” all power sources.
7) Do not attempt to remove any parts without first relieving the entire system of pressure.
8) Do not attempt to service any part while System is in an operational mode.
9) Do not operate the System at pressures in excess of its rating.
10)Do not operate compressor at speeds in excess of its rating.
11)Periodically check all safety devices for proper operation. Do not change pressure setting or restrict
operation in any way.
12)Be sure no tools, rags or loose parts are left on the Nitrox System.
13)Do not use flammable solvents for cleaning the Air Inlet Filters or elements and other parts.
14)Exercise cleanliness during maintenance and when making repairs. Keep dirt away from parts by
covering parts and exposed openings with clean cloth or Kraft paper.
15)Do not operate the compressor without guards, shields, and screens in place.
16)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.
17)Do not operate in areas where there is a possibility of inhaling carbon monoxide, carbon dioxide,
nitrogen, or flammable or toxic fumes.
18)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.
19)Inspect unit daily to observe and correct any unsafe operating conditions found.
20)Do not “play around” with compressed air, nor direct air stream at body, because this can cause
injuries.
21)Compressed air from this machine absolutely must not be used for food processing or breathing air
without adequate downstream filters, purifiers and controls and periodic air quality testing.
22)Always use an air pressure-regulating device at the point of use, and do not use air pressure greater
than marked maximum pressure.
23)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.

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4.0 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
•Tank Number
•Supplier’s check of oxygen content (%O2) plus signature and date
•User’s check of oxygen content (%O2) plus signature and date
•Fill Pressure
•MOD (Maximum Operating Depth) in user’s handwriting
•Nitrox certifying agency and card number

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5.0 Theory of Operation
The Voyager IV Nitrox System is a turnkey package that produces oxygen-rich air (Nitrox) and then
compresses it with a High Pressure (HP) Compressor to fill Scuba Tanks or storage cylinders. The
package is designed to be fully automatic, with a quieted enclosure for noise reduction and protection
from moving parts while it is running. Although it is described as the “Nitrox Compressor”, it can also
be used to pump air.
The Nitrox System allows for efficient and cost effective Nitrox production using electric power,
without the hazards or expense of blending with stored high pressure oxygen (O2). Instead, the
system uses a Semi-Permeable Membrane to produce Nitrox from air. A portion of the nitrogen in air
is separated out, leaving an oxygen rich Nitrox mixture.
The Voyager IV uses a Rotary Screw LP Compressor, Air/Oil Aftercooler, Refrigerated Air Dryer, and
Filtration to provide the Membrane System with a source of clean, pressurized feed air for separation.
The air is filtered to CGA Grade D or better air quality prior to entering the Membrane System so it will
not damage or plug the Membrane fibers. 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. A Back Pressure Regulator is used to adjust the amount of air the screw compressor
produces to meet the appropriate levels for various %O2Nitrox production. The air is then heated to
a temperature that provides stability over a wide range of ambient conditions, is optimal for
Membrane permeation, and prevents moisture condensation.
The heated air enters the Membrane, which is made up of thousands of miniature hollow fibers. The
walls of these fibers are semi-permeable and designed for different gases to move through them (or
permeate) at different speeds. The resulting gas mixture is known as the “permeate”. As air flows
through the hollow fibers, both oxygen and nitrogen permeate through the fiber walls. The oxygen
permeates faster than the nitrogen, which produces permeate with oxygen content greater than air.
The gas that reaches the end of the hollow fibers without permeating is almost entirely nitrogen and is
discharged. The flow rate of this discharge is set by the factory via a fixed orifice, which controls the
permeate to contain a constant 44% O2under normal operating conditions.
The permeate is a concentrated mixture that must be diluted with additional air prior to entering the
HP Compressor. It exits the Membrane at ambient to slightly negative pressure and travels into the
Mixing Tube, where it mixes homogeneously with filtered outside air. The amount of dilution, and
thus final %O2, is obtained by adjusting the amount of air produced by the compressor and supplied
to the membrane, with the Back Pressure Regulator. As air flow to the membrane is increased,
permeate flow increases and a higher %O2Nitrox is produced. As air flow to the membrane is
decreased, permeate flow decreases, compressor intake air increases, and a lower %O2Nitrox is
produced.
This relationship between permeate flow and intake air flow exists because the total of these two flow
rates will always equal the intake flow rate demanded by the HP Compressor. The resulting Nitrox
mixture is analyzed for %O2before entering the HP Compressor for approximate content and again
when pumping Nitrox for precise content. The HP Compressor pumps the Nitrox to a maximum
pressure of 3600 psi (250 bar) to fill Scuba Tanks or storage cylinders.
A unique feature of Nuvair Nitrox Systems is that the feed air pressure that correlates to a specific
Nitrox %O2is repeatable. For example, if your HP Compressor pumps 36% O2when the feed air
pressure is at 125 P.S.I. (9 bar), then adjusting the Back Pressure Regulator to 125 psi (9 bar) during
the next use will produce the same mixture.

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6.0 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)
•Maximum working pressure – 175 psi (12 bar)
•Minimum working pressure – 44 psi (3 bar)
•Idling shaft power consumption – 4.8 hp (3.6 kW)
•Transmission – Belt drive
Cooling:
•Allowed ambient temperature – 32-104°F (0-40°C)
•Compressed air temperature above cooling medium temperature – 50°F (10°C)
•Cooling air flow – 1692 CFM (0.8 m³/s)
•Maximum cooling air pressure drop – 0.12 in H2O (30 Pa)
•Cooling air temperature rise – 57°F (14°C)
•Oil cooler heat rejection – (12.2 kW)
•Aftercooler heat rejection – (1.7 kW)
3-Phase Motor Class F ODP and Electrical Values:
•Motor - F class, 20 hp (15 kW)
•Speed of rotation - 2930 RPM @ 50 Hz / 3450 RPM @ 60 Hz
•Motor Amperage
o208 V / 60 Hz = 61 amps
o230 V / 50 Hz = 57 amps
o400 V / 50 Hz = 34 amps
o460 V / 60 Hz = 29 amps
General Technical Data:
•Oil Capacity 4 L
•Maximum Oil Content in Air– 3 mg/m3
Rotary screw compressors are continuous duty rated. They are not made to run for short intervals
or sit without use for long periods of time. The rotary screw compressor must be run for a
minimum of one continuous hour per week in tropical settings to insure moisture does not build
up in the compressor. The oil filter and oil/air separator must be changed every 2000 hours or a
minimum of once per year. In tropical conditions the oil should be checked every month for
moisture by draining a small amount off the bottom of the compressor into a clear glass. If
moisture is found it can be drained off and a visual inspection should be done on all filters
checking for rust or corrosion.

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7.0 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)
•Charging Rate – 21 SCFM (595 L/min)
•Compressor speed of rotation – 950 RPM
•Maximum working pressure – Air 6000 psi (425 bar), Nitrox 3600 psi (248 bar)
•Transmission – Belt drive
Cooling:
•Allowed ambient temperature – 32-105°F (0-40°C)
•Air Cooled Interstage & Aftercooler
Motor and Electrical Values:
•Motor – 15 hp (11kw) 3-phase
•Speed of rotation – 2930 RPM @ 50 Hz / 3450 RPM @ 60 Hz
•Motor Amperage
o208 V / 60 Hz = 47 amps
o230 V / 50 Hz = 36 amps
o400 V / 50 Hz = 25 amps
o460 V / 60 Hz = 22 amps
General Technical Data:
•Number Of Stages –4
•Number Of Cylinders –4
•Lubrication – Pressure & Splash Lubricated
•Oil Quantity – 3.7 qt. (3.5 L)
•HP Filtration Rating – CGA Grade E, 65,000 cu ft at 68oF (20oC)
•Condensate Drains – Automatic & Manual Interstage & Final
•Fill Pressure Stop – Automatic & Manual
•Low Oil Level Shutdown
•High Temperature Shutdown
•Interstage Pressure Gauges

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8.0 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
•Back Pressure Regulator that controls LP compressor feed air supply
♦Supply Air Pressure Gauge 90-165 psi (6-11 bar) depending on Nitrox %O2
•Low Pressure Feed Air Filtration, Grade D Breathing Air, including four stages:
♦Coalescing & Particle Removal to 1 micron, auto drain, liquid level indicator
♦Water & Oil Vapor Removal to 0.01 micron, auto drain, liquid level & service life indicators
♦Oil Vapor Removal to 0.003 PPM
•Heater including: (optional) not supplied with Nitrox Manager
♦Thermostat Control
♦Digital Temperature Gauge
♦Pressure Switch
♦200 psi (14 bar) ASME Over Pressure Relief
•Semi-Permeable Membrane
•Mixing Tube & Air Intake Filter
•Nuvair Pro O2Remote Permeate Oxygen Analyzer
•Nitrogen Discharge
•Nuvair Pro O2Fill Oxygen Analyzer,including:
♦High Pressure>Low Pressure Regulator
♦Flow Restrictor, 1 - 5 L/min
•High Pressure Compressor, including
♦Magnet Motor Starter
♦Hour Meter
♦Automatic Condensate Drains
♦Automatic Fill Pressure Stop
♦External Lubricant Sight Gauge, Fill, and Drain
♦Nuvair 455 Food Grade Compressor Lubricant
•High Pressure Filtration, Grade E Breathing Air
•Air/Nitrox Quality Analysis Kit

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9.0 Nitrox System Specifications
LP
Compressor
Delivery @ 175 psi (12 bar) 60 CFM FA (1700 L/min)
Horsepower –
Electric 20 hp
(15 kW)
Physical
Specifications
Length 37 in (94 cm)
Width 68 in (173 cm)
Height 70 in (178 cm)
Weight 1625 lb (737 kg)
Full Load Amps
230 V / E3 / 50 Hz 95 amps
230 V / E3 / 60 Hz 95 amps
380-415 V / E3 / 50 Hz 50 amps
460 V / E3 / 60 Hz 55 amps
Membrane Input
Operating Pressure Range 90-185 psi (6-12 bar)
Maximum Input Pressure 300 psi (21 bar)
Feed Air Volume Range 13-60 SCFM (354-1700 L/min)
LP Feed Air Quality Grade D
Optimum Temperature 110 +/- 5oF (43 +/- 3oC)
Nitrox %O2 Range 24 - 40%
HP
Compressor
Charging Rate 21 SCFM (595 L/min)
Horsepower –
Electric 15 hp
(11 kW)

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10.0 Nitrox Voyager IV System Component Identification
Heater
Thermostat
Control
High
Pressure
Compressor
On/Off
Switch
& Hour
Meter
LP Back
Pressure
Regulator
Adjustment
Knob - Adjust
Nitrox O2%
Here.
Low Pressure
Compressor
Momentary
On Switch
& Hour
Meter
Fill
Oxygen
Analyzer
Permeate
Oxygen
Analyzer
HP Fill Outlet
Fill
Pressure
Gauge
HP Compressor
Filter Canisters
Condensate
Container with
Muffler & Drain
Low
Pressure
Gauge
HP Filter
Pressure
Bleed
LP Oil
Temperature
Cabinet
Temperature
Stage
Pressure
Gauges
Filter #
X65677
Filter #
X65247
HP Oil
Pressure
Gauge

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HP & LP Oil
Drains
LP Feed Air
Filtration
(4 Stage)
HP
Compressor
Lubricant
Level Sight
Gauge
Final HP
Condensate
Tower
HP Motor
Control Electric
Box
LP Motor
Control Electric
Box
Refrigerated
Air Dryer
HP & LP Oil
Fill
LP Air
Intake
LP Oil
Filter
LP Oil/Air
Separator

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11.0 System Drawing / Schematic
Voyager IV
Nitrox System Components
Shown Within Dashed Lines

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12.0 System Flow Chart
LP Aftercooler Removes
Moisture
LP Feed Air Filtration
Produces Grade D Air
BP Regulator Controls the
amount of Feed Air
pumped by the compressor
Moisture Separator in Drier
removes moisture
Thermostat Controlled Heater
Heats Air to 110ºF (43ºC)
Membrane Separates Supply
Air Into Permeate and
Nitrogen Rich Gas
Permeate Exits Membrane
Containing 44% O2
Nitrogen Rich Gas Exits
Through Fixed Orifice
located by exhaust cooling
air vent
Mixing Tube Mixes Air &
Permeate to Create Nitrox
Containing 24-40% O2
Air Intake Delivers Filtered
Ambient Air to Mixing Tube
Permeate O
2
Analyzer
Monitors Nitrox before
Compression to +/- 2% O2
HP Compressor with
Moisture Removal &
Filtration Compresses Nitrox
Fill Diver O
2
Analyzer Monitors
Nitrox Mixture to +/- 1% O2
HP Nitrox Delivered to
Storage
HP Nitrox Delivered to
Scuba Cylinder
- OR -
Optional Vacuum Pump or
Blower
LP Compressor Produces LP
Feed Air (Supply Air)
Refrigerated Air Drier cools
the air
Voyager IV
Nitrox System Components
Shown Within Dashed Lines

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Page 18
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 100oF (38oC) during operation of the Nitrox
System. Operation at higher temperatures may lead to system damage and malfunction. 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.
13.1 Precautions
1. Please read all information supplied before physically installing the Nitrox 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 location that allows a minimum spacing of 18” from adjacent walls. Select a
location where ambient room temperature will never exceed 100oF (38oC).
4. The Heater Thermostat has been set in the factory. Do not adjust.
13.2 Nitrogen Discharge Hose
The nitrogen discharge from the Membrane on the
Voyager IV exits next to the exhaust air fan. The fan
pushes over 3000 CFM of exhaust air and as long as
the fan is functioning there will be no need for an
outside optional discharge, unless installed in a
properly ventilated room.
Pure nitrogen is a colorless, odorless, tasteless gas that will not support life.
Breathing gas mixtures containing more than 84% nitrogen at surface
pressures will lead to unconsciousness and may cause death.
The nitrogen discharge from the membrane should be vented to a well-
ventilated room or to open air with good circulation. Failure to isolate the
discharge from the air intake of the membrane system or LP compressor could
lead to incorrect Nitrox mixtures, resulting in serious personal injury or death.
If you allow this pure nitrogen to accumulate in an enclosed space, anyone entering this
space will quickly lose consciousness and will die if not immediately resuscitated.

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Page 19
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.
Prior to making the electrical power connection, check all system specifications provided in this
manual. When working on the Nitrox System the main breaker at the power source must be “locked
out” in the Off position. The Nitrox System has electrical protection for the Compressor Motor and
Membrane System Heater located inside the motor starter compartment.
Amperage Load for System
♦Approximately 95 amps for 230 V three-phase service
♦Approximately 50-55 amps for 400-460 V three-phase
service
Compressor Rotation Check
Always turn on (bump) starter for both LP and HP Compressors and run motor very briefly to check
for proper direction of rotation (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. Reverse
rotation for a rotary screw compressor for even a short period of time will cause damage.
Note Proper Direction
of Rotation
HP On/Off
Switch
HP Compressor Shown
LP Hour
Meter
HP Hour
Meter
LP On/Off
Switch

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Page 20
HP
Compressor
Oil Pressure
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. This will cycle the LP Compressor, distributing oil throughout the
system so an accurate reading may be made.
Do not allow Nitrox to be discharged into the air storage system. Nitrox
introduced into the air storage system could cause a diver to suffer from oxygen
poisoning at depth. Oxygen poisoning is extremely dangerous and can lead to
death by drowning.
Do not allow air to be discharged into the Nitrox storage system. Air introduced into the Nitrox
storage system could cause a diver to suffer decompression sickness if the Nitrox mixture is
not analyzed properly and is used underwater under the assumption it is a different mix.
13.5 Control Panel Controls
Compressor
Lubricant
Level Sight
Gauges
Check Oil
Level*
Cabinet
Temperature
Gauge
Feed Air
Pressure
Gauge
LP
Compressor
Oil
Temperature
Heater
Temperature
Gauge
Fill
Pressure
Gauge
On/Off
Switches
LP Feed Air
Regulator
Adjustment
Knob
Stage
Pressure
Gauges
O
2
Analyzers
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