AirSep AS-160 - User Manual

Questions and Answers

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curtis71Aug 22, 2025
What to do if the AirSep AS-160 doesn't operate, the green light is on, the amber light is off, and the oxygen pressure is low?
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  Jeffrey LawsonAug 22, 2025
  If your AirSep Oxygen Equipment doesn't operate, the green light is on, the amber light is off, the switch is set to AUTO, and the oxygen pressure is less than 275 kPa (40 psig), it could be due to several reasons. The ON/OFF switch might be set to OFF, or the switch itself could be defective. There might be a loose or defective power wire to the circuit board, the pressure switch could be improperly set or defective, or the circuit board might be faulty. To resolve this: * Ensure the ON/OFF switch is set to ON. * Replace the ON/OFF switch if it's defective. * Repair or replace any loose or defective wiring. * Adjust the pressure switch as described in Chapter 7. * Replace the pressure switch if necessary. * Replace the circuit board if it's defective.
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Emily ThompsonAug 25, 2025
Why does my AirSep AS-160 run continuously, but the oxygen pressure is low?
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  valentinejosephAug 25, 2025
  If your AirSep Oxygen Equipment runs continuously but the oxygen pressure is less than 275 kPa (40 psig), this may be due to inadequate feed air pressure, inadequate cycle pressure, or the oxygen demand exceeding the generator's capacity. To address this, ensure the feed air valves are fully open and lines are unobstructed. Adjust or replace the feed air regulator if needed. Also, check the oxygen usage and inspect the unit, oxygen hoses, and piping for any leaks.
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Craig PayneAug 26, 2025
What causes continuous operation and high pressure in my AirSep Oxygen Equipment?
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  ibuchananAug 26, 2025
  If your AirSep Oxygen Equipment operates continuously with the amber light on and the pressure exceeding 400 kPa (58 psig), it could be due to an improperly set or defective pressure switch, a loose or defective power wire to the pressure switch, or a defective AUTO/MAN switch or circuit board. Try adjusting the pressure switch as described in Chapter 7. If that doesn't work, you may need to replace the pressure switch, repair or replace the wire, or replace the AUTO/MAN switch or circuit board.
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Richard JacksonAug 27, 2025
How to troubleshoot an AirSep AS-160 Oxygen Equipment that won't cycle and the green light is off?
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  tonya20Aug 27, 2025
  If the green light on the ON/OFF switch of your AirSep Oxygen Equipment doesn't illuminate and the generator doesn't cycle, it could be due to a lack of electrical power or a blown fuse. Ensure the unit is properly plugged into a working wall outlet. If it is, try replacing the fuse in the unit.
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Troy KnightAug 29, 2025
Why is my AirSep AS-160 outputting dust?
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  Monica MillsAug 30, 2025
  If your AirSep Oxygen Equipment is outputting particulates (dusting), it could be due to excessive feed air pressure, a feed air regulator set above 485 kPa (70 psig), contaminated molecular sieve in adsorbers, or the system not cycling properly. Ensure the maximum feed air pressure does not exceed 1,035 kPa (150 psig) and adjust the feed air regulator.
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Felicia HoffmanAug 31, 2025
What causes a loud chattering noise in the valve of AirSep AS-160 Oxygen Equipment?
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  iromanAug 31, 2025
  A loud “chattering” noise in the valve of your AirSep Oxygen Equipment can be caused by low voltage, low voltage circuit board output, a dirty valve, a worn valve core, or a defective EMI filter. Check the power supply and replace the circuit board if necessary. You might also need to clean or rebuild the valve, or replace the EMI filter.
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antonio72Sep 2, 2025
Why does my AirSep Oxygen Equipment work, but the green light is off?
- J
  Janet HernandezSep 2, 2025
  If your AirSep Oxygen Equipment operates but the green light on the ON/OFF switch doesn't illuminate, the light bulb on the switch may be burned out, or there may be a loose or defective wire to the switch. Replace the switch or the bulb (in AS-160 – AS-1000 models). Alternatively, repair or replace the wire.
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Meghan MorganSep 4, 2025
Why is the amber light off when my AirSep AS-160 Oxygen Equipment cycles in MAN mode?
- S
  Scott RichSep 4, 2025
  If your AirSep Oxygen Equipment cycles with the AUTO/MAN switch set to MAN but the amber light doesn't illuminate, it could be due to a burned-out bulb, a loose or defective wire, or a defective circuit board. Replace the switch or the bulb (in AS-160 – AS-1000 models), repair or replace the wire, or replace the circuit board.
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April CraigSep 6, 2025
What causes very low oxygen output in AirSep AS-160 Oxygen Equipment?
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  Joshua LeSep 6, 2025
  Very low oxygen output (21–50%) in your AirSep Oxygen Equipment can be caused by leaking check valves, a plugged muffler, or contaminated molecular sieve in adsorbers. Try cleaning or replacing the check valves, replacing the muffler, or replacing the molecular sieve.
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Tonya RodriguezSep 7, 2025
Why are the relief valves opening on my AirSep AS-160 Oxygen Equipment?
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  Audrey LopezSep 8, 2025
  If the relief valves on your AirSep Oxygen Equipment are opening, it could be due to several reasons: the cycle pressure exceeding the maximum of 485 kPa (70 psig), a stuck or frozen feed air regulator main valve assembly, a defective cycle pressure gauge, or a defective relief valve. Adjust the feed air regulator, and if that doesn't work, rebuild or replace the regulator. Ensure the ambient temperature exceeds 4°C (40°F). Replace the gauge and adjust the feed air regulator if the gauge is defective. As a last resort, replace the relief valve.

Summary

Introduction

Safety Warnings and Notes

Highlights safety guidelines and important information, including WARNING, CAUTION, and NOTE messages.

Safety Information

Oxygen Hazards and Precautions

Details hazards associated with oxygen, such as fire acceleration, and precautions to prevent them.

Component Descriptions

External Component Overview

Illustrates external components like adsorbers, control panel, and enclosure on different models.

Manifold Component Details

Illustrates and describes various manifold components such as filters, valves, and regulators.

Installation Guide

Handling and Unpacking Procedures

Provides guidelines for inspecting, unpacking, and checking the oxygen generator for damage upon receipt.

Pre-installation Site Requirements

Installation Connection Steps

Operation Procedures

Initial Start-Up Procedure

Provides step-by-step instructions for starting the oxygen generator for the first time or after a shutdown.

Operating Modes (Auto;Manual)

Shutdown Procedure

Normal Start-Up Procedure

Restart After Extended Shutdown

Maintenance Schedule

Daily Maintenance Monitoring

Monthly Maintenance Checks

Front Cover Removal

Filter Depressurization

Filter Element Replacement

Provides step-by-step instructions for replacing particulate and coalescing filter elements.

Generator Depressurization

Feed Air Regulator Adjustment

Explains how to adjust the feed air regulator for optimal pressure settings.

Pressure Switch Adjustment

Provides instructions for adjusting the pressure switch settings for proper operation.

Troubleshooting Guide

Troubleshooting Common Issues

Provides a guide to diagnose and solve common problems with the oxygen generator.

Technical Data Appendix

Model Specifications

Lists detailed technical specifications for AS-20 through AS-1000 oxygen generator models.

Warranty and Returns Appendix

Product Warranty Terms

Details the warranty coverage, limitations, and terms for the AirSep Corporation PSA oxygen generator.

Service Return Procedures

Parts List Appendix

AS-20 Spare Parts List

AS-45 Spare Parts List

AS-80 Spare Parts List

AS-160 Spare Parts List

AS-250 Spare Parts List

AS-450 Spare Parts List

AS-750 Spare Parts List

AS-1000 Spare Parts List

AirSep AS-160 Specifications

General

Oxygen Concentration	93% ± 3%
Sound Level	45 dBA
Operating Humidity	15% to 95% non-condensing
Power Supply	AC
Operating Voltage	120 V
Operating Temperature	50°F to 104°F