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Introduction
This service manual was created for Sunrise Medical qualified
service technicians to define the proper maintenance, service,
and repair procedures on the DeVilbiss 5 Liter Oxygen
Concentrator. For more in-depth classroom-type training,
Sunrise Medical holds oxygen concentrator service schools. For
service school information, contact the Service Department at
1-800-338-1988.
IMPORTANT SAFEGUARDS
When using electrical products, especially when children are present,
basic safety precautions should always be followed. Read all instruc-
tions before using. Important information is highlighted by these
terms:
DANGER - urgent safety information for hazards that will
cause serious injury or death.
WARNING - important safety information for hazards that
might cause serious injury.
CAUTION - information for preventing damage to the prod-
uct.
NOTE - information to which you should pay special attention.
READ ALL INSTRUCTIONS
BEFORE USING.
G E N E R A L I N F O R M AT I O N
Safety Precautions and
General Warnings
A.
Federal (U.S.A.) law restricts this device to sale by or on
the order of a physician.
B.
Oxygen promotes rapid burning. Do not smoke when
using this unit or when near a person receiving oxygen
therapy. Do not operate the oxygen concentrator within a
minimum of five feet (1.5 meters) from hot, sparking, or
burning objects or naked flames. Do not use in rooms
heated by paraffin or portable gas heaters.
C. Do not place a humidifier with an oxygen patient unless
prescribed by a physician and then only a bubble-type
humidifier should be used.
D.
Do not connect the oxygen concentrator to an electrical
outlet controlled by a wall switch; the outlet should be
independent of other appliances.
E.
Do not use an electrical adapter or extension cord with
the oxygen concentrator.
F.
Only operate the oxygen concentrator with all filters in
place; do not operate if the air filter is wet.
G. Electric shock hazard. Do not remove cabinet.The cabinet
may only be removed by a qualified Sunrise Medical
homecare provider.
H.
Disconnect the power cord from the wall outlet before
attempting repairs on the unit. Extra care should be taken
if it is necessary to operate the unit with the cabinet
removed.
I.
Do not use oils, greases, or any petroleum-based
solvents/cleaners on or near the unit. Use only materials
that are compatible with oxygen.
J.
When replacing the capacitor, do not touch the terminals
or allow metal objects to come in contact with the
terminals on the capacitor.
K.
Use only DeVilbiss concentrator replacement parts and
accessories.
L.
Do not use regenerated sieve material.
Theory of Operation
An oxygen concentrator is a device that delivers highly concen-
trated oxygen for therapeutic applications.
Room air is a mixture of 78% nitrogen, 21% oxygen, 1% argon
and other gases.The concentrator draws in the air, separates
the nitrogen from the oxygen, and allows delivery of the con-
centrated oxygen to the patient through the oxygen port.
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Troubleshooting
