OGSI OG-15 User manual

Effective 07/2014
OG-15 and OG-20
Oxygen Generators
Installation, Operation and
Maintenance Manual
Oxygen Generating Systems Intl. (OGSI)
Division of Audubon Machinery Corporation
814 Wurlitzer Drive, North Tonawanda, New York 14120USA
Tel: [phone] Toll Free: [phone] Fax: [phone]
E-mail: [email protected]
Website: www.ogsi.com
Part # 9000000-005
US $25.00

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Effective 07/2014 Rev C
Table of Contents
Topic
Page Number
Using this Manual
1
Initial Inspection
2
Warranty Information and Liabilities
3
Safety Guidelines
5-6
Unpacking
5
Operating
6
Product Information
7-32
Features and Applications
7
PSA Technology
9
Components
10
Process Flow Description
26
Specifications
27
Performance Curve
31
Safety Precautions
33
Pre –Installation
34
Required Operating Conditions
35
Set-up and Installation
36
Operating Instructions
37
Troubleshooting Guide
38
Preventive Maintenance
39
Technical Service Assistance
40
Appendix
I-X
Certificate of Compliance
I
Spare Parts List
II
Oxygen Cleaning Procedure
IV
Air Changes by Room Size
VIII
Units of Measurements
IX
Maintenance Log
X

©2014, OGSI. All rights reserved. OGSI is a registered trademark.
This publication may not be reproduced in part or whole without written permission of OGSI.

Effective 07/2014
Using this Manual
This manual is intended as a guide for operators of OGSI Oxygen Generators and
Oxygen Generating Systems. It includes information on our warranty policy, features,
functions, applications, proper set-up and installation, operation and preventive
maintenance of our products.
The following symbols are used throughout the manual:
Information
(Do not use product before
reading the manual)
Electrical Hazard
Sound
Fire Hazard
No Smoking
Warning
No Open Flames
Power ON/OFF
Flow Meter
Timer
No Oil
Not Connected to Outlet

Effective 07/2014 2
Initial Inspection
The box should be opened and inspected immediately upon delivery. Unpack the
unit at once and perform a visual inspection to determine if it is dented, bent or scratched.
Also check to make sure the power cord is attached and that the control panel has not
been damaged in any way during shipment.
If for any reason the unit should need to be returned in the future, the original box
is the best way to ship it back to the manufacturer. Claims of damage due to freight
handling can only be filed by you, the consignee, as OGSI shipping terms are Free On
Board (FOB), North Tonawanda, NY USA. This means that once the equipment leaves
our dock you are the owner of it. OGSI has no legal claim to make against any shipping
company for damage.
At OGSI, we are committed to using shipping companies with good reputations for
taking care in the overall handling of freight and providing service in the event of damage.
In our experience, we have found United Parcel Service (UPS) to be a poor carrier choice
for equipment of this size and weight. Although they will accept and deliver it, we have
often encountered problems with the way they handle the systems, and recommend other
freight carriers be used. (E.g. Federal Express (FedEx) –Insured shipment)

Effective 07/2014 3
Warranty
Oxygen Generating Systems Intl., being a division of Audubon Machinery
Corporation (hereinafter OGSI), provides a warranty on its products (the “Products”)
against defects in material and workmanship, under normal use and operation, to the
extent set forth in this Warranty.
THIS WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY OF OGSI WITH
RESPECT TO THE PRODUCTS AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR
IMPLIED ALL OF WHICH ARE HEREBY DISCLAIMED TO THE FULLEST EXTENT PERMITTED
BY APPLICABLE LAW. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING
DISCLAIMER AND EXCEPT AS OTHERWISE SET FORTH IN THIS WARRANTY, OGSI
DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY WITH RESPECT TO THE PRODUCTS
AND ALL WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. THE WARRANTY OF
OGSI AS SET FORTH HEREIN IS FOR THE BENEFIT OF THE ORIGINAL USER OF THE
PRODUCTS AND IS NOT TRANSFERABLE WITHOUT THE PRIOR EXPRESS WRITTEN
CONSENT OF OGSI.
The OGSI Warranty provides the following:
1) OGSI shall repair or replace the Products free of charge to the original user where
defects in the material and/or workmanship are evident at the time of delivery.
Such replacement of the Products does not include damages incurred in shipping
the Products. If shipping damage is evident, the original user should contact the
shipper immediately. OGSI will pay for shipping the Products to the original user
as well as returning damaged/defective Products to OGSI. Once the Products are
repaired, OGSI will ship the Products back to the original user and cover all costs
incurred in shipping.
2) OGSI shall repair or replace the Products (excluding filter elements and sieve
material) free of charge to the original user where defects in material and/or
workmanship become evident between the time of delivery to the original user
and one (1) year from the date of delivery to the original user. OGSI will pay for
shipping the Products to the original user as well as returning damaged/defective
Products to OGSI. Once the Products are repaired, OGSI will ship the Products
back to the original user and cover all costs incurred in shipping. In no event
shall OGSI have any responsibility or liability for the cost of labor for the
removal of component parts or equipment that constitute part of the Products,
packaging of the component parts or equipment that constitute part of the
Products or the re-installation or replacement of the component parts or
equipment that constitute part of the Products.
3) The warranty provided by OGSI to the original user covers parts and equipment
specifically manufactured by OGSI and used as components or equipment that
constitute part of the Products. The warranty on parts or equipment manufactured
by third parties and included as part of the Products (e.g., air dryers, air
compressors, oxygen compressors, instrumentation, etc.) is limited to the
respective original warranties of such third parties.
Note: A Return Authorization Number must be obtained from OGSI prior to the return
shipment of the Product or any component parts or equipment of the Products.

Effective 07/2014 4
The Return Authorization Number must be visibly written on the outside of the package
of the returned Products, component parts or equipment as applicable or OGSI will not
accept the return.
Note: A Credit Certificate will be created for all Warranty Exchange transactions.
OGSI will provide the Credit Certificate with an invoice at the time of shipment to the
original user. The Credit Certificate must be included in the package to OGSI with the
returned products within 30 days of the date of the invoice. Failure to return Warranty
Exchange Products to OGSI within 30 days will make the Warranty Exchange process void
and payment for Products will be billed and due on receipt.
Note: The warranties of OGSI as set forth herein shall also become null, void and not
binding on OGSI if a defect or malfunction occurs in the Products or any part of the
Products as a result of:
a) A failure to provide the Required Operating Conditions for the Products
(See page 35)
b) Repair, attempted repair, adjustment or servicing of the Products, or any
component parts or equipment that constitutes part of the Products by anyone
other than an authorized representative of OGSI. The authorized service
representative must obtain prior approval from OGSI’s Service Manager before
performing any warranty work.
c) External Causes (e.g. flood, hurricane, tornado, fire, any natural disaster, or any
event deemed an act of God).
Molecular Sieve Replacement:
The breakdown of the molecular sieve inside the generator (dusting of the sieve)
only occurs if excess water/oil is entrained in the feed air stream. Under no
circumstances is the molecular sieve covered under any warranty by OGSI. If sieve
dusting occurs on your machine, check the air compressor, air dryer and filter elements.
Other Matters:
OGSI is not liable for any special, indirect, punitive, economic, incidental or
consequential losses or damages including without limitation, loss of use, malfunction of
OGSI products, replacement oxygen charges, delays or lost savings related to the
Products or otherwise even if OGSI shall have been advised of the possibility of such
potential losses or damages.
Limits of Liability
OGSI Oxygen Generator products shall not be used for breathable or medical
oxygen applications, unless they are assembled with the appropriate support equipment,
tested, and operated in compliance with either American, Canadian or ISO norms for
hospital oxygen systems.

Effective 07/2014 5
Safety Guidelines
Unpacking
ADDITIONAL PACKAGING MATERIAL INSIDE THE UNIT MUST BE REMOVED AND THE AIR INLET
FILTER MUST BE INSTALLED PRIOR TO OPERATING THE OXYGEN GENERATOR.
Ensure that the unit is NOT connected to an electrical outlet.

Remove the six (6) screws with nylon washers located on the front and both sides of the unit.

Lift the front cover up and away from chassis.

Remove packaging material from top, behind, and under the air compressor (drawing below).

Install air inlet filter (on top of the air compressor as shown below).

Install the front cover and secure the six (6) screws with nylon washers.
Air Inlet Filter
REMOVE
PACKAGING
MATERIAL.
FAILURE TO DO SO
WILL VOID YOUR
WARRANTY.
UNIT SHOWN WITH COVER REMOVED

Effective 07/2014 6
Operating
OGSI Oxygen Generators are self-contained systems for the production of high purity
oxygen. Although oxygen itself is not combustible, it can be very dangerous. It greatly
accelerates the burning of combustible materials.
Precautions should be taken to avoid a fire in the area of the oxygen generator.
Smoking should not be permitted in the area where the oxygen generator is located.
All oxygen connections and hoses should be kept clean and free of grease, oil and other combustible
materials.
Valves controlling oxygen flow should be opened and closed slowly to avoid the possibility
of fires or explosions.
Do not attempt to modify or enhance the performance of an oxygen generator in any way.
When bleeding a tank or line, stand clear and do not allow oxygen to embed itself within clothing.
A spark could ignite the clothing violently.

Effective 07/2014 7
Product Information
Features and Applications
The OGSI Models OG-15 and OG-20 extract oxygen from the atmosphere using
Pressure Swing Adsorption (PSA) technology. It concentrates oxygen up to
93% (± 3%) purity which can be utilized in many applications.
Features
Easy to Use
Just connect to an electrical outlet, push the ON/OFF power switch to the ON
position and set your desired flow and pressure.
Dependable
Its internal air compressor, filtration system, Zeolite sieve, storage tank, and flow
control system are designed for 24/7operation.
Durable
Built on a powder coated steel chassis, its anodized aluminum sieve beds are
fitted with custom aluminum end caps for years of reliable service.
Portable
The OG-15 weighs 65 lb (29 kg) without cover and the OG-20 weighs
67 lb (30 kg) without cover. These units are industrial strength oxygen
generators.
Safe
A built-in oxygen pressure regulator allows you to set the delivery pressure
according to your requirements. The compressor on the OG-15 and OG-20
has 0.33 hp and has a built-in safety relief valve to prevent pressures above
55 psi (3.8 bar). The OG-15 and OG-20 units deliver an optimal flow of
oxygen up to 12 psi (0.83 bar) and 20 psi (1.4 bar) respectively.
Economical
Oxygen is free! The OG-15 and OG-20 eliminate the unnecessary costs involved
in transportation, storage and cylinder rental. The OG-15and OG-20use less than
0.7 kW of electricity to deliver up to 15 ft3and 20 ft3of oxygen per hour
respectively. This product is both cost-effective and energy-efficient.

Effective 07/2014 8
Applications
The OG-15 and OG-20 can be used in various applications. A few examples are given below.
Hyperbaric Oxygen Therapy (HBOT)
Fish Farming and Aquaculture
Ornamental Glass Manufacturing
Jewelry Manufacturing
Bottled Water Manufacturing
Waste and Water Treatment

Effective 07/2014 9
Pressure Swing Adsorption (PSA) Technology
An OGSI Oxygen Generator is an on-site oxygen generating machine capable of
producing oxygen on demand in accordance with your requirements. In effect, it separates
the oxygen (21%) from the air it is provided and returns the nitrogen (78%) to the
atmosphere through a waste gas muffler. The separation process employs a technology
called Pressure Swing Adsorption (PSA). At the heart of this technology is a material
called Molecular Sieve (Zeolite).This sieve is an inert, ceramic-like material that is designed
to adsorb nitrogen more readily than oxygen. Each of the two beds that make up the
generator contains this sieve. The process is described below.
Stage 1
Compressed air is fed
into the first molecular
sieve bed. Nitrogen is
trapped, while oxygen
is allowed to flow
through.
Stage 2
When the sieve in the
first bed becomes full
of nitrogen, the airflow
is then directed into
the second bed.
Stage 3
As the second bed
separates the oxygen
from the nitrogen, the
first bed vents its
nitrogen into the
atmosphere.
Stage 4
Compressed air is once
again fed into the first
bed and the process is
repeated continuously.
A constant flow of
oxygen is produced.
This air separation process is reliable and virtually maintenance-free.
The molecular sieve will last indefinitely, as long as it does not become contaminated
with water or oil vapors. This is why regular filter element replacement is crucial to
trouble-free operation. The filter elements are very inexpensive and require semi-annual
maintenance.

Effective 07/2014 10
External Components
Front View
1. Air Pressure Gauge
2. ON/OFF Power Switch
3. Hours Meter
4. Anti-vibration Feet (Optional)
5. Oxygen Pressure Gauge
6. Oxygen Flow Meter
7. Oxygen Pressure Regulator

Effective 07/2014 11
Control Panel (Magnified View)
1. ON/OFF Power Switch
2. Model Number
3. Oxygen Flow Meter Knob
4. Oxygen Pressure Regulator Knob

Effective 07/2014 12
Side Views
Left
1. Vent Hole (8”minimum clearance)
2. Cabinet
3. Reset Button
4. Voltage Label
Right
1. Oxygen Outlet
2. Cabinet
3. Vent Hole (8”minimum clearance)

Effective 07/2014 13
External Components Description
Air Pressure Gauge
This gauge indicates the air pressure being delivered by the internal air
compressor to the sieve beds. It should vary between 30-45 psi (2.1-3.1 bar)
while the unit is operating.
ON/OFF Power Switch
This switch controls power to the machine. It is lighted when the machine
switch is in the ON position.
Hours Meter
The hours meter shows how long the unit has been operating. This helps
indicate when service intervals are due.
Oxygen Pressure Gauge
This gauge indicates the pressure at which the oxygen is being delivered.
The flow meter is calibrated at 12 psi (0.83 bar) for OG-15 and 20 psi (1.4
bar) for OG-20 and the pressure must be adjusted to this level when reading
the flow meter. The oxygen regulator can adjust the pressure.
Oxygen Pressure Regulator
The regulator controls the oxygen delivery pressure level. To adjust the
oxygen delivery pressure level, pull the adjustment knob easily towards
you. Turning it clockwise increases the delivery pressure while turning it
counter-clockwise decreases the delivery pressure. The oxygen pressure
gauge will indicate the level set. To lock it into place, push down the
adjustment knob.
Vent Holes
These vent holes allow cooling air to enter and exit the enclosure.
Reset Button
The reset button is actually a circuit breaker that opens if there is an electrical
overload in the system and/or if there is any back pressure within the air
and/or oxygen lines.
Oxygen (O2) Outlet
This fitting is a ‘B’ size oxygen adapter. It can be removed to expose a 1/8”
female NPT pipe fitting.

Effective 07/2014 14
Internal Components (OG-15)
Front View
1. Control Panel
2. Terminal Assembly Strip
3. Sieve Bed
4. Heat Exchanger
5. Air Compressor
6. Circuit Board
7. Pre-filter
8. Valve Block (115 VAC or 230 VAC)
9. Inlet Air Filter
10. Safety Relief Valve (55 psi)

Effective 07/2014 15
Back View (Standard)
1. Oxygen Receiver Tank
2. Cooling Fan (115 VAC or 230 VAC)
3. Capacitor
4. Power Cord
5. Vent Holes
6. Purge Loop
7. Check Valves
8. Exhaust Muffler
9. Serial Number Locator (Not Visible)

Effective 07/2014 16
Back View (Quiet Muffler Option)
1. Oxygen Receiver Tank
2. ½”Female Elbow
3. ¼”Foam Filter
4. Exhaust Muffler
5. ½”x¼”Reducing Nipple