Invacare Platinum IRC5LXO2AW User manual

Service Manual
DEALER:Keep this manual. The procedures in this
manual MUST be performed by a qualified
technician.
For more information regarding
Invacare products, parts, and services,
please visit www.invacare.eu.com
Platinum®Oxygen
Concentrator
Model IRC5LXO2AW (With SensO2and HomeFill® Compatible)
Model IRC9LXO2AWQ (With SensO2and HomeFill Compatible)
0434

TABLE OF CONTENTS
Part No 1118396 2Platinum®Oxygen
TABLE OF CONTENTS
SPECIAL NOTES ................................................................................ 5
Symbols ....................................................................................................................................................5
Symbols in the Documentation ..........................................................................................................5
Symbols on Product ..............................................................................................................................6
FEATURES ........................................................................................ 7
SPECIFICATIONS .............................................................................. 8
SECTION 1 — SAFETY .................................................................... 10
General Guidelines...................................................................................................................................11
Radio Frequency Interference ...............................................................................................................15
SECTION 2 — INSTALLATION/SEQUENCE OF OPERATION ................ 16
Installation/Verification of Battery Free Power Loss Alarm...........................................................16
Sequence of Operation ...........................................................................................................................16
SensO2Oxygen Sensor Technology - Ceramic Zirconia Sensor .................................................17
Technical Description .........................................................................................................................17
Operating Sequence ............................................................................................................................17
SECTION 3 — PNEUMATIC DIAGRAM .............................................. 19
SECTION 4 — TROUBLESHOOTING .................................................. 20
SECTION 5 — CABINET ................................................................... 25
Removing Cabinet ....................................................................................................................................25
SECTION 6 — PREVENTIVE MAINTENANCE ..................................... 26
Cleaning the Cabinet Filter ....................................................................................................................26
Replacing the Outlet HEPA Filter.........................................................................................................27
Check the Outlet HEPA Filter..........................................................................................................27
Replace the Outlet HEPA Filter .......................................................................................................27
Replacing the Compressor Inlet Filter.................................................................................................28
Inspecting/Replacing Throttling Muffler For Platinum 5 AW .........................................................30
Inspecting/Replacing the Throttle Muffler...........................................................................................31
For Platinum 9 AWQ..........................................................................................................................31
For Platinum 5LXAW .........................................................................................................................31
Cleaning the Heat Exchanger.................................................................................................................32
SECTION 7 — COMPRESSOR ............................................................ 35
Replacing Compressor Assembly for 5 Liter Models ......................................................................35
Replacing Compressor Assembly - 9 Liter Models ..........................................................................36
Replacing Capacitor .................................................................................................................................37

TABLE OF CONTENTS
Platinum®Oxygen 3Part No 1118396
TABLE OF CONTENTS
SECTION 8 — PE VALVE .................................................................. 38
Replacing PE Valve....................................................................................................................................38
SECTION 9 — SIEVE BEDS ................................................................ 40
Replacing Sieve Beds................................................................................................................................40
SECTION 10 — CHECK VALVES ....................................................... 42
Replacing Check Valves...........................................................................................................................42
SECTION 11 — REGULATOR ............................................................ 44
Replacing Regulator..................................................................................................................................44
Adjusting Regulator..................................................................................................................................46
SECTION 12 — HEAT EXCHANGER ................................................. 47
Replacing Heat Exchanger ......................................................................................................................47
Platinum 5 Models................................................................................................................................47
Platinum 9 Models................................................................................................................................48
SECTION 13 — CONTROL PANEL ..................................................... 50
Removing Control Panel.........................................................................................................................50
Replacing Control Panel..........................................................................................................................51
SECTION 14 — COOLING FAN ......................................................... 52
Replacing Cooling Fan .............................................................................................................................52
SECTION 15 — P.C. BOARD ............................................................ 54
Replacing P.C. Board................................................................................................................................54
SECTION 16 — TRANSFORMER ....................................................... 56
Replacing Transformer Assembly .........................................................................................................56
SECTION 17 — ON/OFF SWITCH ....................................................... 57
Replacing On/Off Switch.........................................................................................................................57
SECTION 18 — FLOWMETER ............................................................ 58
Replacing Flowmeter ...............................................................................................................................58
SECTION 19 — HOUR METER .......................................................... 59
Replacing Hour Meter .............................................................................................................................59
SECTION 20 — 4-WAY VALVE ........................................................ 60
Replacing 4-Way Valve............................................................................................................................60
Replacing Manifold Assembly.................................................................................................................61
5 and 9 Liter Models ...........................................................................................................................61
Replacing Pilot Valve Poppets and O-Rings........................................................................................64

TABLE OF CONTENTS
Part No 1118396 4Platinum®Oxygen
TABLE OF CONTENTS
SECTION 21 — PURITY INDICATORS ............................................... 67
SensO2Alarm Indicators ........................................................................................................................67
Operation...................................................................................................................................................67
Indicator Light Explanation.....................................................................................................................67
SECTION 22 — AUTOTUNING ......................................................... 69
Autotuning.............................................................................................................................................69
SECTION 23 — LEAK TEST .............................................................. 71
Leak Test ....................................................................................................................................................71
SECTION 24 — ALARM TEST .......................................................... 74
Alarm and Sensor Tests..........................................................................................................................74
Power Loss Alarm ...............................................................................................................................74
Low Pressure Test...............................................................................................................................74
Time-Out Test......................................................................................................................................75
High Pressure Test ..............................................................................................................................75
Oxygen Sensor .....................................................................................................................................76
PE Valve Coil Test ...............................................................................................................................77
SECTION 25 — RECYCLING INFORMATION ..................................... 79
SECTION 26 — SIEVE BED PRESSURE CHECK ................................... 80
Pressure Testing .......................................................................................................................................80
CUSTOMER SERVICE AND WARRANTY INFORMATION ................... 82

SPECIAL NOTES
Part No 1118396 5Platinum®Oxygen
SPECIAL NOTES
Symbols
Signal words are used in this manual and apply to hazards or unsafe practices which
could result in personal injury or property damage. Refer to the table below for
definitions of the signal words.
Symbols in the Documentation
Signal Word meaning
 DANGER Danger indicates an imminently hazardous situation which, if not avoided, will result
in death or serious injury.
 WARNING Warning indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
 CAUTION Caution indicates a potentially hazardous situation which, if not avoided, may result in
property damage or minor injury or both.
! IMPORTANT Indicates a hazardous situation that could result in damage to property if it is not
avoided.
NOTE: Gives useful tips, recommendations and information for efficient, trouble-free use.
General Warning Sign
NOTE: The background color inside the triangle is yellow on product labels.
Read the Manual
NOTE: The color of the symbol background is blue on product labels.
No Smoking
NOTE: The color of the circle with the diagonal bar is red on product labels.
No Open Flame
NOTE: The color of the circle with the diagonal bar is red on product labels.
Class II, Double Insulation
Protected against solid foreign objects of 12.5 mm diameter and greater.
Protected against vertically falling water drops. This applies to units built
after October 2016. Anything prior is IPX1 rated.
Indoor Use Only
Keep Dry
Transport and Storage Temperature
IPX1
65C
MAX
-29C
Min

SPECIAL NOTES
Platinum®Oxygen 6Part No 1118396
Symbols on Product
O2INDICATORS
Transport and Storage Humidity
Alternating Current
Type BF equipment
Recycle
DO NOT dispose of in household waste
Electrical Hazard
Manufacturer
European Representative
This product complies with Directive 93/42/EEC concerning medical
devices.
The launch date of this product is stated in the CE declaration of confor-
mity.
Power switch “ON”
Power switch “OFF”
LABEL
SYMBOL
O2PURITY INDICATOR LIGHTS (LED)
SYSTEM OKAY
O2over 85%
GREEN Indicator Light
O2Between 73% to 85% YELLOW Indicator light
A. YELLOW Solid
B. YELLOW Flashing Sensor Failure
Call a qualified technician.
SYSTEM FAILURE
O2Below 73%
RED Indicator Light
Continuous Audible Alarm Sieve-GARD™ Compressor Shutdown.
0434
O
2

FEATURES
Part No 1118396 7Platinum®Oxygen
FEATURES
Oxygen Purity and Fault
Indicator Lights
Circuit Breaker
Power Switch
Hour Meter
Cabinet Filter
(one of two
shown)
Flowmeter
Oxygen Outlet
FRONT VIEW - IRC5LXO2AW, IRC9LXO2AWQ
TOP VIEW
ACCESSORIES (NOT SHOWN):
HomeFill home oxygen compressor -
IOH200AW
Contact your local Invacare representative for
available accessory information.
*NOTE: This outlet fitting is to be used only
for filling oxygen cylinders with the
HomeFill home oxygen compressor. The
outlet fitting does not affect concentrator
performance. Refer to the HomeFill user
manual, part number 1116444, for
connection and operating instructions.
When not in use, the plug provided with the
concentrator should be inserted into the
outlet fitting. For more information about
the HomeFill, contact Invacare.
Power Cord
Outlet Fitting*

SPECIFICATIONS
Platinum®Oxygen 8Part No 1118396
SPECIFICATIONS
Electrical Requirements: 230 VAC ± 10% (253 VAC/207 VAC), 50 Hz
Rated Current Input: 2.0 A (IRC5LXO2AW)
2.5 A (IRC9LXO2AWQ)
Sound Level: 44 dB Average (IRC5LXO2AW)
Altitude: For IRC5LXO2AW - Up to 1828 meters (6,000 ft.) above sea
level without degradation of concentration levels. NOT
RECOMMENDED FOR USE ABOVE 1828 M (6,000 ft).
For IRC9LXO2AWQ - Up to 4,000 ft. (1230 meters) above sea
level without degradation of concentration levels.
*Oxygen Output Concentration Levels:
All 5LXO2AWQ/5LXAW/5LXO2AW models
* (Stated concentration levels achieved after
initial warm-up period (approximately 30
minutes).
For IRC5LXO2AW
93% minimum at 1 to 3 L/min.
91% minimum at 4 L/min.
87% minimum at 5 L/min (maximum recommended flow).
For IRC9LXO2AWQ
93% minimum at 1 to 7 L/min; 91% minimum at 8 L/min; 87%
minimum at 9 L/min.
Maximum Outlet Pressure: 5 Liter is 34.5 ± 3.45 kPa (5 ± 0.5 psi); 9 Liter is 62.05 kPa ±
3.45 kPa (9 ± 0.5 psi).
Flow Range: For IRC5LXO2AW - 0.5 to 5 L/min. Flowrates less than 1
L/min. are not recommend
For IRC9LXO2AWQ - 1 L/min. to 9 L/min.
Flowrates less than1 L/min. are not recommended.
Potential Obstruction Alert: The concentrator detects a condition that may indicate a
potential obstruction of the output oxygen. Rapid audible
beeping alert (this alert is deactivated when accessories are
connected). May be associated with the following flow settings:
IRC5LXO2AW - 0 L/min - 0.5 L/min
IRC9LXO2AWQ - 0 L/min. to 1.0 L/min
Average Power Consumption: 395 W (IRC5LXO2AW)
500 W (IRC9LXO2AWQ)
Pressure Relief Mechanism Operational at: 241 kPa ± 24.1 kPa (35 psi ± 3.5 psi)
Change in maximum recommended flow when
back pressure of 7k Pa is applied:
0.7 L/min.
Filters: Cabinet (2), Outlet HEPA and Compressor Inlet.
Safety System: Current overload or line surge shutdown
High temperature compressor shutdown
High Pressure Alarm w/compressor shutdown
Low Pressure Alarm w/compressor shutdown
Battery Free Power Loss Alarm
SensO2Oxygen System (SensO2Model) Possible Obstruction
Alert
Width: 46.7 cm ± 1 cm (18 3/8 in ± 3/8 in)
Height: 67.0 cm ± 1 cm (26 3/8 in. ± 3/8 in)

SPECIFICATIONS
Part No 1118396 9Platinum®Oxygen
Depth: 36.5 cm ± 1 cm (14 3/8 in. ± 3/8 in)
Weight: For IRC5LXO2AW - 23.6 kg ± 1 kg (52 lbs ± 2 lbs)
For IRC9LXO2AWQ - 24.0 kg ± 1 kg (53 lbs ± 2 lbs)
Shipping Weight: For IRC5LXO2AW - 26.8 kg ± 1 kg (59 lbs ± 2 lbs)
For IRC9LXO2AWQ - 27.2 kg ± 1 kg (60 lbs ± 2 lbs)
Operating Ambient Temperature: 10°C - 35°C (50°F - 95°F) at 20-60% relative humidity
Exhaust: Less than Ambient +19°C (+ 35°F)
Oxygen Output: Less than Ambient (+ 4°F) +2°C.
Cabinet: Impact Resistant flame-retardant plastic cabinet that conforms
to UL 94-V0.
CE marked models: IRC5LXO2AW, IRC9LXO2AWQ
Electrical: No extension cords.
Placement: No closer than 7.5 cm (3 inches) from any wall, furniture,
draperies, or similar surfaces.
Tubing: For IRC5LXO2AW 2.1 m (7 ft) cannula with a maximum 15.2 m
(50 ft) of Crush-Proof Tubing (DO NOT pinch).
For IRC9LXO2AWQ - Recommended use up to 15.2 m (50 ft)
high flow tubing with high flow cannula at all flow rates.
Relative Humidity: 20 to 60%
Time of Operation: Up to 24 hours per day
Recommended Storage and Shipping
Temperature:
-29°C to 65°C (-20°F to 150°F) at 15-95% relative humidity

SECTION 1—SAFETY
Platinum®Oxygen 10 Part No 1118396
SECTION 1— SAFETY
ITEM DESCRIPTION
A Serial number label is located on the resonator intake assembly.
B Specification label is located on the back of the concentrator at the base.
C Double Insulation label is located on the back of the concentrator at the base.
D
A
B
C
D

SECTION 1—SAFETY
Part No 1118396 11 Platinum®Oxygen
General Guidelines
 DANGER
Risk of Death, Injury or Damage
Improper use of the product may cause death, injury or damage. This section
contains important information for the safe operation and use of this product.
DO NOT use this product or any available optional equipment without first
completely reading and understanding these instructions and any additional
instructional material such as user manuals, service manuals or instruction sheets
supplied with this product or optional equipment.
If you are unable to understand the warnings, cautions or instructions, contact a
healthcare professional, dealer or technical personnel before attempting to use this
equipment.
Check ALL external components and carton for damage. In case of damage, or if
the product is not working correctly, contact a technician or Invacare for repair.
THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE
WITHOUT NOTICE.
 DANGER
Risk of Death, Injury or Damage From Fire
Textiles, oil or petroleum substances, grease, greasy substances and other
combustibles are easily ignited and burn with great intensity in oxygen enriched air
and when in contact with oxygen under pressure. To avoid fire, death, injury or
damage:
DO NOT SMOKE while using this device.
DO NOT use near OPEN FLAME or IGNITION SOURCES.
DO NOT use any lubricants on concentrator unless recommended by Invacare.
NO SMOKING signs should be prominently displayed.
Avoid creation of any spark near oxygen equipment. This includes sparks from
static electricity created by any type of friction.
Keep all matches, lighted cigarettes, electronic cigarettes or other sources of
ignition out of the room in which this concentrator is located and away from where
oxygen is being delivered.
Keep the oxygen tubing, cord, and concentrator out from under such items as blan-
kets, bed coverings, chair cushions, clothing, and away from heated or hot surfaces
including space heaters, stoves, and similar electrical appliances.

SECTION 1—SAFETY
Platinum®Oxygen 12 Part No 1118396
 DANGER
To reduce the risk of burns, electrocution, death or injury to persons:
DO NOT disassemble. Refer servicing to qualified service personnel. There are no
user serviceable parts.
Avoid using while bathing. If continuous usage is required by the physician's
prescription, the concentrator must be located in another room at least 7ft (2.1m)
from the bath.
DO NOT come in contact with the concentrator while wet.
DO NOT place or store concentrator where it can drop into water or other liquid.
DO NOT reach for concentrator that has fallen into water. Unplug IMMEDIATELY.
DO NOT use frayed or damaged AC power cords.
 WARNING
Risk of Injury or Damage
Invacare products are specifically designed and manufactured for use in conjunction
with Invacare accessories. Accessories designed by other manufacturers have not
been tested by Invacare and are not recommended for use with Invacare products.
There are many different types of humidifiers, oxygen tubing, cannulas and masks
that can be used with this device. You should contact your local home care supplier
for recommendations on which of these devices will be best for you. They should
also give you advice on the proper usage, maintenance, and cleaning.
 DANGER
Risk of Injury or Death
To avoid choking or ingestion of chemicals from airway contamination:
DO NOT use the concentrator in the presence of pollutants, smoke, fumes,
flammable anesthetics, cleaning agents, or chemical vapors.
 WARNING
Risk of Injury or Death
To prevent injury or death from product misuse:
Closely supervise when this concentrator is used by or near children or impaired
individuals.
Monitor patients using this device who are unable to hear or see alarms or commu-
nicate discomfort.

SECTION 1—SAFETY
Part No 1118396 13 Platinum®Oxygen
 WARNING
Risk of Injury or Death
To avoid choking and/or strangulation from tubing entanglement:
Keep children and pets away from nasal cannula and tubing.
Close supervision is necessary when the nasal cannula is used by or near children
and/or impaired persons.
 WARNING
Risk of Injury or Death
To reduce the risk of injury or death from illness:
Replace the nasal cannula on a regular basis. Check with your equipment supplier or
physician to determine how often the cannula should be replaced.
DO NOT share cannulas between patients.
 WARNING
Risk of Injury
A change in altitude may affect total oxygen available to you. To prevent oxygen
deprivation:
Consult your physician before traveling to higher or lower altitudes to determine if
your flow settings should be changed.
 WARNING
To prevent injury or damage from cord misuse:
DO NOT move or relocate concentrator by pulling on the cord.
DO NOT use extension cords with AC power cord provided.
Properly store and position electrical cords and/or tubing to prevent a tripping
hazard.
 WARNING
Risk of Injury or Damage
Invacare oxygen concentrators are specifically designed to minimize routine
preventive maintenance. To prevent injury or damage:
Only professionals of the healthcare field or persons fully conversant with this
process such as factory trained personnel should perform preventive maintenance
or performance adjustments on the oxygen concentrator, except for tasks
described in this manual.
Users should contact your dealer or Invacare for service.

SECTION 1—SAFETY
Platinum®Oxygen 14 Part No 1118396
 CAUTION
Risk of Damage
To prevent damage from liquid ingress:
If the concentrator is not working properly, if it has been dropped or damaged, or
dropped into water, call equipment supplier/qualified technician for examination
and repair.
NEVER drop or insert any object or liquid into any opening.
For Indoor Use ONLY.
 WARNING
Risk of Injury
It is very important to select the prescribed level of oxygen flow. To avoid injury
from oxygen deprivation:
DO NOT increase or decrease the flow unless a change has been prescribed by your
physician or therapist.
ALWAYS confirm prescribed dose before administering to patient and monitor on
a frequent basis.
 WARNING
Risk of damage
Shorter periods of operation may reduce maximum product life. For optimum
performance:
The concentrator should be on and running for a minimum of 30 minutes at a time.

SECTION 1—SAFETY
Part No 1118396 15 Platinum®Oxygen
Radio Frequency Interference
 WARNING
Risk of Injury or Damage
To reduce the risk of injury or product damage from interference with wireless
equipment:
Keep concentrator at least 9.8 ft (3.0 m) away from wireless communication equip-
ment such as wireless home network devices, mobile phones, cordless phones and
base stations, walkie-talkies, etc.
This equipment has been tested and found to comply with EMC limits specified by IEC/
EN 60601-1-2. These limits are designed to provide a reasonable protection against
electromagnetic interference in a typical medical installation.
Other devices may experience interference from even the low levels of electromagnetic
emissions permitted by the above standards. To determine if the emissions from the
concentrator are causing the interference, turn the concentrator Off. If the interference
with the other device(s) stops, then the concentrator is causing the interference. In such
rare cases, interference may be reduced or corrected by one of the following measures:
• Reposition, relocate, or increase the separation between the equipment.
• Connect the equipment into an outlet on a circuit different from that to which the
other device(s) is connected.

SECTION 2—INSTALLATION/SEQUENCE OF OPERATION
Platinum®Oxygen 16 Part No 1118396
SECTION 2—INSTALLATION/
SEQUENCE OF OPERATION
Installation/Verification of Battery Free Power Loss
Alarm
When your new Platinum concentrator arrives, it should be checked for proper operating
conditions.
1. If the unit has been in below-freezing temperatures, allow it to warm up to room
temperature before operating.
2. The concentrator may need to be turned on for 4 to 5 seconds to charge the Battery Free
Power Loss Alarm. Connect power cord to outlet and turn the concentrator on. Turn
flow control knob counterclockwise and flow will begin IMMEDIATELY. Set flow rate
to five L/min. Let the unit run for 30 minutes, then turn unit off.
3. Unplug the power cord and press on/off switch to the On position. An
intermittent audible alarm will sound. This confirms proper operation of the Battery
Free Power Loss Alarm. Turn On/Off switch Off (O).
4. Connect power cord to outlet and turn on concentrator. Unit will beep on start-up.
5. Check the oxygen concentration per specifications after 30-40 minutes running time.
Sequence of Operation
Turning on the power switch applies 230 VAC to the compressor motor, hour meter,
transformer, cooling fan and the printed circuit (P.C.) board.
Room air enters the compressor via the cabinet filter and the compressor inlet filter. The
air is compressed by the wobble pistons in the compressor to a pressure of 144.79 kPa (21
psi) for 5 Liter model and 172.36 kpa (25 psi) for 9 Liter model.
As increased pressure creates increased temperature, a heat exchanger is used to lower
the temperature before the air enters the 4-way valve. It is then channeled to a sieve bed
containing the adsorption material. Restriction downstream of the sieve bed causes
pressure to build up inside the sieve bed which is necessary for the adsorption process. A
small amount of relatively pure oxygen enters the top of the second bed through a
restrictive leak in the pressure equalization (PE) valve with the balance entering a storage
tank. The nitrogen removed is exhausted back from the bed through the 4-way valve into
room air. A muffler is located at the exhaust end of the valve to muffle the sound of the
exhaust as it exits the concentrator.
The oxygen not being used to exhaust is channeled into the storage tank. The pressurized
oxygen is regulated down to 34.5 ± 3.45 kPa (5 ± 0.5 psi) for 5 Liter; 62.05 kPa ± 3.45 kPa (9
± 0.5 psi) for 9 Liter, enters an accurate flow-measuring device, flows through Outlet
HEPA filter and check valve, then out to the patient.
(I/O)
( )
(I/O)
( )

SECTION 2—INSTALLATION/SEQUENCE OF OPERATION
Part No 1118396 17 Platinum®Oxygen
The electrical activation of the 4-way Valve is accomplished every 8 to 15 seconds by the
pressure sensor and P.C. Board electronics when the pressure reaches a set point of 144.79
kPa (21 psi) for 5 Liter and 172.36 kPa (25 psi) for 9 Liter. The time between cycles is
dependent on altitude, flow rate and internal environmental factors.
A PE valve opens just prior to the shift of the 4-way valve. This allows highly concentrated
oxygen to enter the just exhausted bed from the top. This additional pressure allows the
bed to start its cycle at a higher pressure. The PE valve will close just after the shift of the
4-way valve.
If main power is lost, the Battery Free Power Loss Alarm will sound a short BEEP, with a
long pause after. All units are equipped with a diagnostic alarm system that signals if the
pneumatic pressure or electrical systems malfunction. The Troubleshooting Guide in this
manual explains the alarm system signals and reasons, in detail, for your convenience.
SensO2Oxygen Sensor Technology - Ceramic Zirconia
Sensor
Technical Description
The oxygen being produced by the concentrator flows out of the product tank and into
the flowmeter. A small flow of oxygen produced by the unit is sent through a precision
orifice to the oxygen sensor mounted on the printed circuit board.
As the oxygen enters the sensor, it passes through a screen and contacts the sensing disk.
Electric current flowing through a metal film resistor heats the disk in excess of 300°C.
Oxygen molecules contact the electrode of the disk and pick-up extra electrons to become
oxygen ions. These oxygen ions are attracted to the electrode on the bottom of the zirconia
sensing disk. Because of the crystal structure of the zirconia, only oxygen ions can pass
through. When the oxygen ions reach the bottom electrode, the extra electrons are
released from the oxygen ions and oxygen molecules return to the air. The number of
electrons is directly related to the oxygen concentration. The electrons travel to the P.C.
board where they are counted and the oxygen concentration reading is calculated.
A microprocessor on the P.C. board contains software that interprets the signal being
received from the sensor. It compares the signal to clinically acceptable limits. Signals
outside of the clinically acceptable limits generate responses in the form of lights, audible
indicators, and/or system shut-down.
Operating Sequence
Once the power switch has been turned on , the SensO2circuit will wait five minutes
for the concentrator to begin producing clinically acceptable oxygen and the oxygen
sensor to stabilize. The GREEN light will illuminate (indicating normal system operation)
while the oxygen sensor is warming up.
After 5 minutes, if the oxygen purity exceeds 85% ± 2%, the GREEN light will continue to
illuminate.
( )

SECTION 2—INSTALLATION/SEQUENCE OF OPERATION
Platinum®Oxygen 18 Part No 1118396
If the oxygen level is not above 85% ± 2% after the first five minutes, the system will
continue to monitor the O2and wait for a maximum of 30 minutes from start-up to reach
85% ± 2% before activating an alarm. Environmental factors such as low voltage, high
altitude, or age of the machine will affect the time required to reach 85% ± 2%.
If the oxygen level is not above 85% ± 2% within the first 30 minutes, the oxygen
concentration alarm sequence will activate and the unit will shut down.
When oxygen concentration is above 85% ± 2%, the sensor measures oxygen purity every
10 minutes. If a reading falls below 85% ± 2%, a YELLOW light will illuminate. If the
oxygen purity falls below 73% ± 3%, the RED light/Alarm/Shut-Down mode will activate.

SECTION 3—PNEUMATIC DIAGRAM
Part No 1118396 19 Platinum®Oxygen
SECTION 3—PNEUMATIC DIAGRAM
Plantinum Oxygen Concentrator
Flowmeter
Ouput
HEPA Filter
Output
Check
Valve
Patient
Output
Oxygen Sensor
(SensO2models Only)
Pressure Sensor
P.S.I. 02
P.C. Board
Pressure
Regulator
Product
Tank
Check
Valves
Air Inlet
Cabinet
Filter(s)
Compressor
Inlet Filter Sieve
Bed
Sieve
Bed
PE Valve
4-way
Valve
Compressor
Relief
Valve
Heat
Solenoid
Pilot
Exhaust
Muffler
LEGEND Pneumatic Connections Electrical Connections

SECTION 4—TROUBLESHOOTING
Platinum®Oxygen 20 Part No 1118396
SECTION 4—TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE SOLUTION
Normal Operation
Internal Status Indicators:
RED: Off
GREEN: Off
Unit plugged in, power switch on.
Single beep on start up.
No Problems System Okay
Power Loss
Internal Status Indicators:
RED: Off
GREEN: Off
Unit unplugged, power switch on,
alarm off.
No Problems Battery Free Circuit drained. Plug in cord and turn
power switch ON to recharge.
Power Loss
Internal Status Indicators:
RED: Off
GREEN: Off
Unit plugged in, power switch, alarm
off, battery Free circuit drained.
No power at outlet Check electrical outlet with a table lamp or
voltmeter set on the appropriate VAC scale. If
outlet isn't working, check protective device in
home's electrical panel or consult an electrician.
Also ensure that unit is properly plugged in. DO
NOT use extension cords. Move to another outlet
or circuit.
Power cord:
a. Frayed
b. Broken or damaged spade
c. Spade connector from power
cord loose or disconnected
(inside back of unit)
a. Reattach cord.
b. Replace power cord connectors on plug.
c. Reattach connector.
On/Off switch
a. Disconnected wire
b. Faulty switch
Check all electrical connections to the On/Off
switch for any disconnected wires.
If the concentrator does not come on at all and
wiring is intact, color code and remove wires one
at a time. Remove and replace with new one.
Transfer wires from old switch to new switch one
at a time to the matching contact.
Circuit breaker tripped Reset breaker
NOTE: Breaker may trip to safeguard concentrator
during a power surge.
If breaker trips IMMEDIATELY, there is a probable
short in the unit. Check for pinched or charred
wires. If the breaker does not trip, run unit for
approximately two hours. The circuit breaker
should be less than ten ohms. If breaker trips again,
there is an internal problem.
P.C. board
a. P.C. board damaged
b. Loose or damaged connector
a. Replace P.C. Board. Refer to Replacing P.C.
Board on page 54.
b. Repair or replace connector. Refer to
Replacing P.C. Board on page 54.
Internal Power
Loss SensO2
Internal Status Indicators:
RED: Off
GREEN: Off
Alarm may or may not be on.
Control Panel Indicators:
RED: Off
YELLOW: Off
GREEN: Off
Fan operates, Compressor not
operating.
Transformer assembly
a. Faulty
b. Connector loose or
disconnected
c. Faulty wiring
a. Replace. Refer to Replacing Transformer
Assembly on page 56.
b. Reattach connector.
c. Replace transformer assembly. Refer to
Replacing Transformer Assembly on
page 56.
P.C. board faulty Replace P.C. board. Refer to Replacing P.C. Board
on page 54.
( )
(I/O)
(I/O)