Table of Contents
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Introduction .............................................................................................................................................................................................3
Important Safeguards.............................................................................................................................................................................3
Safety Precautions and General Warnings ........................................................................................................................................3
Theory of Operation.............................................................................................................................................................................3
Operation .................................................................................................................................................................................................4
Microprocessor-Controlled Pressure-Sensing System...................................................................................................................4
OSD Option ............................................................................................................................................................................................4
Exterior and Interior Parts Figures ....................................................................................................................................................5
Operating the DeVilbiss Oxygen Concentrator ..........................................................................................................................11
Performing Initial Inspection ..............................................................................................................................................................11
Suggested Patient Setup......................................................................................................................................................................12
Routine Patient Maintenance ...........................................................................................................................................................13
Periodic Homecare Provider Preventative Maintenance ............................................................................................................13
Between Patient Maintenance ...........................................................................................................................................................14
Patient Alert System ............................................................................................................................................................................15
Diagnostic System ................................................................................................................................................................................15
Normal Operating Sequence.............................................................................................................................................................18
Simplified Troubleshooting..................................................................................................................................................................19
Troubleshooting Chart........................................................................................................................................................................20
OSD Troubleshooting Chart..............................................................................................................................................................23
Proper Repair Procedures .................................................................................................................................................................24
Leak Testing............................................................................................................................................................................................25
Cabinet Removal ..................................................................................................................................................................................25
Power Cord...........................................................................................................................................................................................27
Flow Meter ............................................................................................................................................................................................28
Power Switch.........................................................................................................................................................................................28
Hour Meter ...........................................................................................................................................................................................28
Pressure Regulator...............................................................................................................................................................................28
Sieve Bed Check Valves.......................................................................................................................................................................29
Final Check Valve ..................................................................................................................................................................................31
Molecular Sieve Beds...........................................................................................................................................................................32
Compressor...........................................................................................................................................................................................34
Cooling Fan............................................................................................................................................................................................41
Four-Way Valve......................................................................................................................................................................................41
Purge Valve .............................................................................................................................................................................................46
Pilot Pressure System..........................................................................................................................................................................47
Manifold Assembly................................................................................................................................................................................48
Printed Circuit Board..........................................................................................................................................................................49
Capacitor................................................................................................................................................................................................50
OSD (oxygen sensing device) ..........................................................................................................................................................50
Pneumatic Diagram ...............................................................................................................................................................................51
Wiring Diagram .......................................................................................................................................................................................52
Specifications .............................................................................................................................................................................................53
Ordering Information............................................................................................................................................................................54
Parts List......................................................................................................................................................................................................55
Warranty Information...........................................................................................................................................................................56
T A B L E O F C O N T E N T S
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Table of Contents
Troubleshooting
