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.com

Platinum™Oxygen

Concentrator

Model IRC5LXAW (HomeFill™II Compatible)

Model IRC5LXO

2

AW (With SensO

2

®and HomeFillII Compatible)

Model IRC5LXO

2

AWQ (With SensO

2

and HomeFill II

Compatible)

Platinum™Oxygen 2 Part No 1118396

 WARNING

DO NOT OPERATE THIS EQUIPMENT WITHOUT FIRST READING

AND UNDERSTANDING THIS MANUAL. IF YOU ARE UNABLE TO

UNDERSTAND THE WARNINGS, CAUTIONS, AND

INSTRUCTIONS, CONTACT INVACARE TECHNICAL SERVICES

BEFORE ATTEMPTING TO USE THIS EQUIPMENT - OTHERWISE

SERIOUS INJURY OR PROPERTY DAMAGE MAY RESULT.

NOTE: Updated versions of this manual are available on www.invacare.com.

TABLE OF CONTENTS

Part No 1118396 3 Platinum™Oxygen

TABLE OF CONTENTS

SPECIAL NOTES ................................................................................ 6

TYPICAL PRODUCT PARAMETERS .................................................... 7

FEATURES ........................................................................................ 9

SHIPPING AND HANDLING ............................................................ 10

Unpacking...................................................................................................................................................10

Inspection ...................................................................................................................................................10

Storage ........................................................................................................................................................10

SECTION 1 — IMPORTANT SAFEGUARDS ........................................ 11

Maintenance...............................................................................................................................................12

Radio Frequency Interference ...............................................................................................................12

To Reduce the Risk of Burns, Electrocution, Fire or Injury to Persons......................................12

Accessories ................................................................................................................................................13

SECTION 2 — INSTALLATION/SEQUENCE OF OPERATION ................ 14

Installation/Verification of Battery Free Power Loss Alarm...........................................................14

Sequence of Operation ...........................................................................................................................14

SensO

2

Oxygen Sensor Technology - Ceramic Zirconia Sensor .................................................15

Technical Description .........................................................................................................................15

Operating Sequence ............................................................................................................................15

SECTION 3 — PNEUMATIC DIAGRAM .............................................. 17

SECTION 4 — TROUBLESHOOTING .................................................. 18

SECTION 5 — CABINET ................................................................... 26

Removing Cabinet ....................................................................................................................................26

SECTION 6 — PREVENTIVE MAINTENANCE ..................................... 27

Cleaning the Cabinet Filter ....................................................................................................................27

Replacing the Outlet HEPA Filter.........................................................................................................28

Check the Outlet HEPA Filter..........................................................................................................28

Replace the Outlet HEPA Filter .......................................................................................................28

Replace the Outlet HEPA Filter .......................................................................................................29

Replacing the Compressor Inlet Filter.................................................................................................30

Replacing the Exhaust Canister/Exhaust Muffler

(Platinum Models Manufactured before 7/24/03)..............................................................................32

Inspecting/Replacing the Throttling Muffler (

Platinum Models Manufactured after 7/24/03)...................................................................................33

Cleaning the Heat Exchanger.................................................................................................................34

TABLE OF CONTENTS

Part No 1118396 4 Platinum™Oxygen

TABLE OF CONTENTS

SECTION 7 — COMPRESSOR ............................................................ 36

Replacing Compressor Assembly (Models manufactured before July 24, 2003).......................36

Replacing Compressor Assembly (Models manufactured after July 24, 2003) ..........................37

Replacing Capacitor .................................................................................................................................38

Rebuilding the Thomas Model 2650 and 2660 Compressor..........................................................39

Removing Compressor and Compressor Heads .........................................................................40

Rebuilding the Compressor...............................................................................................................44

SECTION 8 — P.E. VALVE ................................................................ 48

Replacing P.E. Valve..................................................................................................................................48

SECTION 9 — SIEVE BEDS ................................................................ 49

Replacing Sieve Beds................................................................................................................................49

SECTION 10 — CHECK VALVES ....................................................... 52

Replacing Check Valves...........................................................................................................................52

SECTION 11 — REGULATOR ............................................................ 54

Replacing Regulator..................................................................................................................................54

Adjusting Regulator..................................................................................................................................55

SECTION 12 — HEAT EXCHANGER ................................................. 56

Replacing Heat Exchanger ......................................................................................................................56

Concentrator Models manufactured before 9/9/2005................................................................56

Concentrator Models Manufactured After 9/9/2005 ..................................................................57

SECTION 13 — CONTROL PANEL ..................................................... 59

Removing Control Panel.........................................................................................................................59

SECTION 14 — COOLING FAN ......................................................... 61

Replacing Cooling Fan .............................................................................................................................61

SECTION 15 — P.C. BOARD ............................................................ 63

Replacing P.C. Board................................................................................................................................63

SECTION 16 — TRANSFORMER ....................................................... 65

Replacing Transformer Assembly .........................................................................................................65

SECTION 17 — ON/OFF SWITCH ....................................................... 66

Replacing On/Off Switch.........................................................................................................................66

SECTION 18 — FLOWMETER ............................................................ 67

Replacing Flowmeter ...............................................................................................................................67

TABLE OF CONTENTS

Platinum™Oxygen 5 Part No 1118396

TABLE OF CONTENTS

SECTION 19 — HOUR METER .......................................................... 68

Replacing Hour Meter.............................................................................................................................68

SECTION 20 — 4-WAY VALVE ........................................................ 69

Replacing 4-Way Valve............................................................................................................................69

Replacing Manifold Assembly.................................................................................................................71

Units Manufactured before 7/24/03.................................................................................................71

Units Manufactured after 7/24/03 ....................................................................................................74

Replacing Pilot Valve Poppets and O-Rings........................................................................................76

SECTION 21 — PURITY INDICATORS ............................................... 79

SensO

2

Alarm Indicators ........................................................................................................................79

Operation...................................................................................................................................................79

Indicator Light Explanation (SensO

2

Models) ....................................................................................79

Indicator Light Explanation (LX Models) ............................................................................................80

SECTION 22 — TIMING ................................................................... 81

Autotuning.............................................................................................................................................81

Manual Tuning.......................................................................................................................................83

SECTION 23 — LEAK TEST .............................................................. 85

Leak Test ....................................................................................................................................................85

SECTION 24 — ALARM TEST .......................................................... 88

Alarm and Sensor Tests..........................................................................................................................88

Power Loss Alarm ...............................................................................................................................88

Low Pressure Test...............................................................................................................................88

Time-Out Test......................................................................................................................................89

High Pressure Test ..............................................................................................................................89

Oxygen Sensor .....................................................................................................................................90

P.E. Valve Coil Test .............................................................................................................................92

SECTION 25 — SIEVE BED PRESSURE CHECK ................................... 93

Installing the Sieve Bed Pressure Tap-In Kit Installation and Checking Bed Pressure .............93

Disassembly ...........................................................................................................................................93

Installation..............................................................................................................................................94

Pressure Testing...................................................................................................................................94

After Testing .........................................................................................................................................95

LIMITED WARRANTY ..................................................................... 99

SPECIAL NOTES

Platinum™Oxygen 6 Part No 1118396

SPECIAL NOTES

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.

NOTICE

The information contained in this document is subject to change without notice.

 DANGER

Users MUST not smoke while using this device. Keep all matches, lighted cigarettes

or other sources of ignition out of the room in which this product is located. NO

SMOKING signs should be prominently displayed. Textiles and other materials that

normally would not burn are easily ignited and burn with great intensity in oxygen

enriched air. Failure to observe this warning can result in severe fire, property

damage, and cause physical injury or death.

 WARNING

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.

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.

TYPICAL PRODUCT PARAMETERS

Part No 1118396 7 Platinum™Oxygen

TYPICAL PRODUCT PARAMETERS

Electrical Requirements: 230 VAC ± 10% (253 VAC/207 VAC), 50 Hz

Rated Current Input: 1.4 A (IRC5LXO2AWQ)

2.0 A (IRC5LXAW, IRC5LXO2AW)

Sound Level: 39.5 dB Average (IRC5LXO2AWQ)

44 dB Average (IRC5LXAW, IRC5LXO2AW)

Altitude: Up to 1828 meters (6,000 ft.) above sea level without degrada-

tion of concentration levels. NOT RECOMMENDED FOR USE

ABOVE 1828 M (6,000 ft)

*Oxygen Output Concentration Levels:

All 5LXO2AWQ/5LXAW/5LXO2AW models

* (Stated concentration levels achieved after ini-

tial warm-up period (approximately 30 minutes).

93% minimum at 1 to 3 L/min.

91% minimum at 4 L/min.

87% minimum at 5 L/min (maximum recommended flow)

Maximum Outlet Pressure: 34.5 ± 3.45 kPa (5 ± 0.5 psi)

Flow Range: 0.5 to 5 L/min. Flowrates less than 1 L/min. are not recommend

Low Flow Alarm: 0 L/min. to 0.5 L/min. Rapid Audible Alarm Beeping (No Acces-

sories Connected).

Average Power Consumption: 320 W (IRC5LXO2AWQ)

395 W (IRC5LXO2AW, IRC5LXAW)

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.

SensO

2

Oxygen System (SensO

2

Model) Low Flow Alarm.

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)

Depth: 36.5 cm ± 1 cm (14 3/8 in. ± 3/8 in)

Weight: 23.6 kg ± 1 kg (52 lbs ± 2 lbs)

Shipping Weight: 26.8 kg ± 1 kg (59 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.

TYPICAL PRODUCT PARAMETERS

Platinum™Oxygen 8 Part No 1118396

SENSO

2

INDICATORS

LX INDICATORS

Regulatory Listing: 5LXAW/5LXO2AW/5LXO2AWQ

ETL certified complying with:

EN550011

EN61000-3-2

EN61000-3-3

IEC 60601-1, A1, A2

IEC 60601-1-2

5LXO2AW/5LXO2AWQ Models Only

ISO8359

MDD

CE marked models: 5LXO2AW, 5LXO2AWQ

Electrical: No extension cords.

Placement: No closer than 7.5 cm (3 inches) from any wall, furniture, drap-

eries, or similar surfaces.

Tubing: 7 ft cannula with a maximum 50 ft of Crush-Proof Tubing (DO

NOT pinch).

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.

LABEL

SYMBOL

STATUS INDICATOR LIGHTS (LED)

SYSTEM OKAY

O

2

over 85% (± 2%)

GREEN Indicator Light

O

2

Between 73% (± 3%) to 85% (±2%) YELLOW Indicator light

A. YELLOW Solid

B. YELLOW Flashing Sensor

Failure Call a qualified technician.

SYSTEM FAILURE

O

2

Below 73% (±3%)

RED Indicator Light

Continuos Audible Sieve-Gard™Compressor

shutdown

Call a qualified technician.

LABEL

SYMBOL

STATUS INDICATOR LIGHTS (LED)

SYSTEM OKAY GREEN Indicator Light

SYSTEM FAILURE RED Indicator light

Continuous Audible Alarm Sieve-GARD™

Compressor

Shutdown

Call a qualified technician

O

2

I/O

FEATURES

Part No 1118396 9 Platinum™Oxygen

FEATURES

Oxygen Purity and Fault

Indicator Lights (SensO

2

model)/Fault and Power

Indicator Lights

(LX model)

Circuit Breaker

Power Switch

Hour Meter

Cabinet Filter

(one of two

shown)

Flowmeter

Oxygen Outlet

FRONT VIEW

TOP VIEW

ACCESSORIES (NOT SHOWN):

Homefill II 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 II home oxygen compressor. The

outlet fitting does not affect concentrator

performance. Refer to the HomeFill II

owner's 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 II, contact Invacare.

Power Cord

Outlet Fitting*

FIGURE 4.1 IRC5LXAW, IRC5LXO2AW, IRC5LXO2AWQ

SHIPPING AND HANDLING

Platinum™Oxygen 10 Part No 1118396

SHIPPING AND HANDLING

Before you install and operate the concentrator, please refer to the Platinum Owner’s

Manual (1118389).

The concentrator should ALWAYS be kept in the upright position to prevent cabinet

damage while being transported. The shipping container has been designed to assure

maximum protection of the concentrator.

If the concentrator is to be reshipped by common carrier, additional cartons are available

from Invacare.

The air compressor suspension system has been engineered to withstand severe motion

and orientation.

Unpacking

1. Check for any obvious damage to the carton or its contents. If damage is evident,

notify the carrier, or your local dealer.

2. Remove all loose packing from the carton.

3. Carefully remove all the components from the carton.

NOTE: Unless the oxygen concentrator is to be used IMMEDIATELY, retain containers and

packing materials for storage until use of the concentrator is required.

Inspection

1. Inspect/examine exterior of the oxygen concentrator for nicks, dents, scratches or

other damages. Inspect all components.

Storage

1. Store the repackaged oxygen concentrator in a dry area.

2. DO NOT place other objects on top of

the repackaged concentrator.

FIGURE 5.1 Unpacking

SECTION 1—IMPORTANT SAFEGUARDS

Part No 1118396 11 Platinum™Oxygen

SECTION 1—IMPORTANT

SAFEGUARDS

 WARNING

IMPORTANT SAFEGUARDS 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 Owner’s 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 - otherwise, injury or damage may occur.

The use of oxygen therapy requires that special care be taken to reduce the risk of fire. Any

materials that will burn in air, and some that will not, are easily ignited and burn rapidly

in high concentrations of oxygen. For safety concerns, keep all sources of ignition out of

the room in which this product is located and away from areas where oxygen is being

delivered. Textiles, oil and other combustibles are easily ignited and will burn with great

intensity in oxygen-enriched air. NO SMOKING signs should be prominently displayed.

A spontaneous and violent ignition may occur if oil, grease or greasy substances come in

contact with oxygen under pressure. These substances MUST be kept away from the

oxygen concentrator, tubing and connections, and all other oxygen equipment. DO NOT

use any lubricants unless recommended by Invacare.

For optimum performance, Invacare recommends that each concentrator be on and

running for a minimum of 30 minutes at a time. Shorter periods of operation may be

harmful for maximum product life.

If the concentrator has a damaged cord or plug, if it is not working properly, if it has been

dropped or damaged, or dropped into water, call Qualified Technician for examination

and repair.

Keep the oxygen tubing, cord, and unit away from heated or hot surfaces, including space

heaters, blankets, stoves and similar electrical appliances.

DO NOT move or relocate concentrator by pulling on the power cord.

NEVER drop or insert any object into any opening.

NEVER block the air openings of the product or place it on a soft surface, such as a bed

or couch, where the air opening may be blocked. Keep the openings free from lint, hair

and the like.

Fill humidifier with water to the level shown by the manufacturer. DO NOT overfill.

Invacare recommends that Crush-Proof oxygen tubing be used with this product and

NOT exceed 15.2 m (50 ft) in length.

SECTION 1—IMPORTANT SAFEGUARDS

Platinum™Oxygen 12 Part No 1118396

Maintenance

The Platinum Oxygen Concentrator was specifically designed to minimize routine

preventive maintenance. Only professionals of the healthcare field or persons fully

conversant with this process, such as authorized or factory trained personnel, should

perform preventive maintenance or performance adjustments on the oxygen

concentrator.

Radio Frequency Interference

Most electronic equipment is influenced by Radio Frequency Interference (RFI).

CAUTION should be exercised with regard to the use of portable communications

equipment in the area around such equipment.

To Reduce the Risk of Burns, Electrocution, Fire or

Injury to Persons

DO NOT come in contact with the concentrator while you are wet.

DO NOT place or store product where it can drop into water or other liquids.

DO NOT reach for product that has fallen into water. Unplug IMMEDIATELY.

This device is to be used only in accordance with the prescription of a physician and the

Platinum 5 Owner's Manual. If at any time the patient or attendant concludes that the

patient is receiving an insufficient amount of oxygen, the supplier and/or physician

should be contacted IMMEDIATELY. No adjustments should be made to the flowrate

unless prescribed by a physician therapist.

The product should NEVER be left unattended when it is plugged in.

Close supervision is necessary when this product is used by, on or near children or

physically challenged individuals.

The Platinum concentrator is intended to be used only as an oxygen supplement as

described in the Owner's Manual.

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.

DO NOT connect the concentrator in parallel or series with other oxygen concentrators or

oxygen therapy devices.

Avoid creation of any spark near medical oxygen equipment. This includes sparks from

static electricity created by any type of friction.

SECTION 1—IMPORTANT SAFEGUARDS

Part No 1118396 13 Platinum™Oxygen

Accessories

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 provider 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.

Use of some administration accessories or certain humidifiers, not specified for use with

oxygen concentrator, may impact the performance.

SECTION 2—INSTALLATION/SEQUENCE OF OPERATION

Platinum™Oxygen 14 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).

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 (P.E.) 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 34.4 kPa (5 psi), 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 15 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) The time between cycles is dependent on altitude, flow rate and internal

environmental factors.

A P.E. 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 P.E. 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.

SensO

2

Oxygen 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 SensO

2

circuit 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 16 Part No 1118396

If the oxygen level is not above 85% ± 2% after the first five minutes, the system will

continue to monitor the O

2

and 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 17 Platinum™Oxygen

SECTION 3—PNEUMATIC

DIAGRAM

Plantinum Oxygen Concentrator

Flowmeter

Ouput

HEPA Filter

Output

Check

Valve

Patient

Output

Oxygen Sensor

(SensO

2 models Only)

Pressure Sensor

P.S.I.

0

2

P.C. Board

Pressure

Regulator

Product

Tank

Check

Valves

Air Inlet

Cabinet

Filter(s)

Compressor

Inlet Filter

Sieve

Bed

Sieve

Bed

P.E. Valve

4-way

Valve

Compressor

Relief

Valve

Heat

Solenoid

Pilot

Exhaust

Muffler

LEGEND Pneumatic Connections Electrical Connections

SECTION 4—TROUBLESHOOTING

Platinum™Oxygen 18 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. Contact

Invacare Technical Service at 1-800-832-

4707.

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 63.

b. Repair or replace connector. Refer to

Replacing P.C. Board

on page 63

()

(I /O

)

(I /O

)

SECTION 4—TROUBLESHOOTING

Part No 1118396 19 Platinum™Oxygen

Internal Power

Loss SensO

2

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 65.

b. Reattach connector.

c. Replace transformer assembly. Refer

to Replacing Transformer Assembly

on page 65.

P.C. board faulty. Replace P.C. board. Unit requires retiming

after P.C. board replacement. Refer to

Replacing P.C. Board

on page 63.

High Pressure

Internal Status Indicators:

RED: One Flash

GREEN: Two Flashes

Unit plugged in, power

switch on, continuous

alarm. Compressor shut

down.

P.C. board:

a. Malfunction.

b. Disconnected wire.

c. Shifting valve at pressures greater

than 25 p.s.i.

a. Set flow to max L/min. for

concentrator. Check voltage across

Pilot Valve 2 on 200 volt scale. If

meter reads 0 volts when unit is

turned on, replace P.C. board

b. Check spade connectors on pilot

valve 2 and connectors on P.C.

board.

c. Replace P.C. board. Unit requires

retiming after P.C. board

replacement. Refer to Replacing P.C.

Board on page 63.

4-way Valve:

a. Not shifting.

b. Bad coil.

a. Check voltage. If voltage rises to

approximately 24 volts D.C. when

unit shuts down, P.C. board is

functioning properly. Replace the

valve if shorted or open. Refer to

Replacing 4-Way Valve

on page 69.

b. Coil resistance should read 80 ohm ±

10. Replace 4-way valve. Refer to

Replacing 4-Way Valve

on page 69.

Sieve Beds contaminated. a. Replace Sieve Beds.

SYMPTOM PROBABLE CAUSE SOLUTION

SECTION 4—TROUBLESHOOTING

Platinum™Oxygen 20 Part No 1118396

Low Pressure

Internal Status Indicators:

RED: One Flash

GREEN: One Flash

Or

RED: One Flash

GREEN: Three Flashes

Control Panel Indicators:

RED: On

YELLOW: Off

GREEN: Off

Unit plugged in, power

switch on, continuous

audible alarm.

Compressor shut down

(Failure to cycle due to

low pressure).

Compressor inlet filter dirty or plugged. Replace compressor inlet filter. Refer to

Replacing the Compressor Inlet Filter

on

page 30.

Compressor:

a. Leaks at fittings or tubing.

b. Leaking or defective relief valve.

c. Insufficient voltage at outlet.

d. Worn cup seals or gaskets.

a. Tighten fittings. Replace or repair.

b. Repair leak or replace.

c. DO NOT use extension cords. Use

another outlet.

d. Rebuild top end of compressor. Refer

to Rebuilding the Thomas Model

2650 and 2660 Compressor on

page 39.

Heat exchanger:

a. Leak at tubing or body chamber.

b. Inspect tubing and heat exchanger.

a. Replace or retighten.

b. Replace or retighten tubing. Replace

heat exchanger. Refer to Replacing

Heat Exchanger on page 56.

Regulator cracked or leaking. Replace regulator. Refer to Replacing

Regulator on page 54.

P.E. valve leaking. Replace P.E. Valve. Check voltage at P.E.

valve connector on 24 volt D.C. scale. The

P.E. Valve activates or energizes

approximately one second prior to the

activation of the 4 way valve with

approximately 24 volts. If voltage is in

excess of 24 volts consistently, replace the

P.C. board. Refer to Replacing P.C. Board

on page 63. If the P.C. board voltage acts

normally, replace the P.E. valve. Refer to

Replacing P.E. Valve

on page 48.

NOTE: Check for leaks starting at the

compressor output through all the

pneumatic connections. Major leaks will

cause system pressures to remain below

adequate shift (exhaust) pressures and will

cause compressor shutdown.

Defective Parts

Internal Status Indicators:

RED: One Flash GREEN:

Five Flashes

Or

RED: Two Flashes

GREEN: Three Flashes

Control Panel Indicators:

RED: On

YELLOW: Off

GREEN: Off

Unit plugged in, power

switch on, continuous

audible alarm.

Compressor shut down.

Defective main valve coil. a. Replace main valve.Refer to Replacing

4-Way Valve on page 69.

b. Replace main valve coil. Refer to

Replacing 4-Way Valve

on page 69

Connector loose. Reattach connector.

Defective P.E. valve coil (Resistance 80

ohm’s ± 10).

Defective PC Board.

Replace P.E. coil if shorted or open on

resistance check. Refer to Replacing P.E.

Valve on page 48.

Replace PC Board

Defective P.E. valve coil. (Resistance 80

ohm’s ± 10.)

Replace P.E. coil if shorted or open on

resistance check. Refer to Replacing P.E.

Valve on page 48.

Connector loose. Reattach connector.

Defective P.C. board. Replace P.C. board. Refer to Replacing P.C.

Board on page 63.

Unit Not Operating

Alarm: On or Off

Internal Status Indicators:

RED: Two Flashes

GREEN: Four Flashes Or

RED: Two Flashes

GREEN: Five Flashes

P.C. board Failure. Replace P.C. board.Refer to Replacing P.C.

Board on page 63.

SYMPTOM PROBABLE CAUSE SOLUTION

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Invacare Platinum IRC5LXO2AW User manual

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