Invacare 6LXO2 Service Manual
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Invacare 6LXO2 Service Manual

Invacare 6LXO2 Service Manual

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OXYGEN CONCENTRATORS
INVACARE 3 & 5
Model 3LX
Model 5LX
SERVICE MANUAL
DEALER: KEEP THIS MANUAL. THE PROCEDURES IN THIS MANUAL MUST
BE PERFORMED BY AN AUTHORIZED DEALER ONLY.
INVACARE
INVACARE 5 & 6
Model 5LXO2
with
SensO
Model 5LXO2T
SensO
with
Model 6LXO2
SensO
with
Model 6LXO2T
SensO
with
Model 6LXO2H
with
SensO
Model 6LXO2HT
SensO
with
2
2
2
2
2
2

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Summary of Contents for Invacare 6LXO2

  • Page 1 INVACARE OXYGEN CONCENTRATORS INVACARE 3 & 5 INVACARE 5 & 6 Model 3LX Model 5LXO2 with SensO Model 5LX Model 5LXO2T SensO with Model 6LXO2 SensO with Model 6LXO2T SensO with Model 6LXO2H with SensO Model 6LXO2HT SensO with SERVICE MANUAL DEALER: KEEP THIS MANUAL.

  • Page 2: Special Notes

    SPECIAL NOTES SPECIAL NOTES WARNING/CAUTION notices used in this manual apply to hazards or unsafe practices which could result in personal injury or property damage. NOTICE THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO CHANGE WITH- OUT NOTICE. WARNING DO NOT OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND UNDERSTANDING THIS MANUAL.

  • Page 3: Table Of Contents

    Rebuilding Thomas Model 2639 or INDICATORS AND SWITCH ......58 2619 ............29 Rebuilding Thomas Model 2650 ....33 PROCEDURE 18 - TIMING INVACARE 5 AND Preventive Maintenance Record ....37 INVACARE 6 CONCENTRATORS ....59 PROCEDURE 3 - REPLACING P.E. VALVE PROCEDURE 19 - LEAK TEST ......

  • Page 4: Safety Summary

    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.
  • Page 5 Close supervision is necessary when this product is used by, on or near children or bed confined individuals. Use this product for only intended use as described in this manual. DO NOT use unauthorized parts, accessories or adapters other than those authorized by Invacare.
  • Page 6 SAFETY SUMMARY SAFETY SUMMARY (Continued) GROUNDING INSTRUCTIONS A. This product should be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electrical current. This product is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded.

  • Page 7: Features

    Cabinet Filter (2) ea. FEATURES - 3LX, 5LX Power Indicator SensO2 Status Indicator Lights (5LXO2, Light 5LXO2T, 6LXO2 and 6LXO2T ONLY) Oxygen Outlet Flowmeter Circuit Breaker Power Switch Elapsed Time Cabinet Filter Meter (2) ea. FEATURES - 5LXO2, 5LXO2T, 6LXO2, 6LXO2T...

  • Page 8: Specifications

    Continuous Audible Alarm Sieve GARD Compressor Shutdown * Factory Preset at 73% 1/2 - 5 L/min. (5LX, 5LXO2, 5LXO2T, 6LXO2, 6LXO2T) 1/2 - 3 L/min. 3LX) Flow Range: For flow rates less than 1/2 L/min., use the Invacare Pediatric Flowmeter PF16.

  • Page 9: Recommended End-User Guidelines For Optimum Performance

    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. Sens O2 Oxygen System (5LXO2, 5LXO2T, 6LXO2, 6LXO2T ONLY). Width: 18-inches (45.7 cm) Height: 23.75-inches (60.3 cm) Depth: 14-inches (35.6 cm)

  • Page 10: Shipping And Handling Instructions

    SHIPPING AND HANDLING SHIPPING AND HANDLING INSTRUCTIONS This Service Manual describes, in detail, the Invacare 3, 5 and 6 Oxygen Concentrators. It has been carefully written to explain concentrator operation, service and preventative maintenance. Before you install and operate the concentrator, please refer to OWNER'S MANUAL.

  • Page 11: Installation/Sequence Of Operation

    Connect power cord to outlet and turn the concentrator on. Turn flow control knob counterclockwise and flow will begin immediately. Set flow rate of the Invacare 3 to 3 L/min., Invacare 5 to 5 L/min. and the Invacare 6 to 6 L/min.

  • Page 12: Sens O2 Oxygen Sensor Technology Ceramic Zirconia Sensor

    INSTALLATION / SEQUENCE OF OPERATION INSTALLATION / SEQUENCE OF OPERATION, CONTINUED If main power is lost, the Battery Free Power Loss Alarm will sound a short "beep", with a long pause, intermittently. All units are equipped with a diagnostic alarm system that signals if the pneumatic pressure or electrical systems malfunction.

  • Page 13: Pneumatic Diagram

    PNEUMATIC DIAGRAM PNEUMATIC DIAGRAM INVACARE 3 & 5 OXYGEN CONCENTRATORS MODELS IRC3LX, IRC5LX, IRC5LXO2 RESTRICTOR TEST POINT 2 ASSEMBLY (BETWEEN PRODUCT TANK AND IRC3LX & CHECK VALVE) CHECK VALVES BACTERIA IRC5LX ONLY FILTER FLOWMETER RESTRICTOR PRESSURE is EXTERNAL on REGULATOR TEST POINT 1 IRC3LX ONLY.

  • Page 14: Troubleshooting Guide

    TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE SYMPTOM: PROBABLE CAUSE: SOLUTION: NORMAL OPERATION: No problems. System O.K. Internal Status Indicators: RED: Off GREEN: Off Unit plugged in, power switch on. 3 "beeps" on start up. No problems. POWER LOSS: "Battery Free " Circuit drained. Plug in cord and turn power switch ON to Internal Status Indicators: recharge.
  • Page 15 Check for pinched or charred wires. If the breaker does not trip, run unit for approximately 2 hours. If breaker trips again, there is an internal problem. Contact INVACARE TECHNICAL SERVICE. 5. P.C. Board. a. Damaged. 5a.Replace (PROCEDURE 11).
  • Page 16 TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE SYMPTOM: PROBABLE CAUSE: SOLUTION: HIGH PRESSURE, Continued b. Bad Coil. 2b.Replace 4-way Valve (PROCE- DURE 16). 3. Sieve Beds. 3. Replace Sieve Beds (PROCE- Contaminated. DURE 4). 1. Inlet Filter 1. Replace Inlet Filter (PROCE- LOW PRESSURE: Dirty or Plugged.
  • Page 17 TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE SYMPTOM: PROBABLE CAUSE: SOLUTION: LOW CONCENTRATION: 1. Cabinet Filters Dirty. 1. Clean or Replace (PROCEDURE NOTE: Check for O2 purity using a calibrated Oxygen Ana- 2. Replace (PROCEDURE 2). 2. Inlet Filter Dirty. lyzer at Test Point 1 (OXYGEN OUTLET) of the concentrator.
  • Page 18 12.Timing. 12. To accommodate for varying tolerances when replacing com- ponents, an adjustable timer is used to control the shifting of the Invacare 5 Pressure Equaliza- tion (P.E.) Valve (PROCE- DURE 18). 13. P.E. Valve. a.Bad Coil. 13a.Replace P.E. Valve (PROCE- DURE 3).
  • Page 19 TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE SYMPTOM: PROBABLE CAUSE: SOLUTION: 1. Base Exhaust Vent Plugged or 1. Place unit at least 3-inches from UNIT OVERHEATS: restricted. any wall. DO NOT place unit on pile or shag carpeting that may restrict air flow. 2.
  • Page 20 TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE SYMPTOM: PROBABLE CAUSE: SOLUTION: UNIT NOT OPERATING 1. Purity Switch. 1. Replace P.C. Board. (PROCE- ALARM: OFF Defective. DURE 11). Unit may need Internal Status Indicators: retiming after board replacement. RED: Off (PROCEDURE 18). GREEN: Off 2.

  • Page 21: Repair/Replacement Guide

    CABINET PROCEDURE 1 REPAIR / REPLACEMENT GUIDE INVACARE 3LX, INVACARE - 5LX/5LXO2/5LXO2T AND INVACARE - 6LXO2/6LXO2T PROCEDURE 1 - REMOVING CABINET (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove the eight (8) mounting screws that secure cabinet assembly to the base assembly.

  • Page 22: Procedure 2 - Preventive Maintenance

    TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELEC- TRICAL OUTLET BEFORE SERVICING. Sound Box NOTE: The Invacare Concentrators are specifi- cally designed to minimize routine preventive maintenance at intervals of once per year. In places with high dust or soot levels, mainte- nance may need to be performed more often.

  • Page 23: Exhaust Muffler Canister/Exhaust Muffler

    PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 (continued) - PREVENTIVE MAINTENANCE Exhaust Muffler Canister/Exhaust Muffler Cleaning Finned Heat Exchanger (FIGURE 5) (FIGURE 4) 1. Unplug unit. NOTE: The following should be performed at 2. Remove cabinet (Refer to PROCEDURE 1 - 20,000 hr.

  • Page 24: Compressor Top End Rebuild - 3 Liter Rebuilding Thomas Model 2638 Or 2618

    PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) 5. Grasp both head assemblies and gently pull them CAUTION apart. TO PREVENT ELECTRICAL SHOCK, ALWAYS DIS- CONNECT CONCENTRATOR FROM ELECTRICAL 6. Remove the crossover tubes from the head as- OUTLET BEFORE SERVICING.
  • Page 25 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) Removing the Piston - 3 Liter Compressor 4. Situate compressor so the piston being rebuilt is (FIGURE 7) to your right and locate the connecting rod set screw access hole located on the lower portion of 1.
  • Page 26 PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) Installing the New Piston (FIGURE 8) 5. Align the front face of the connecting rod with the front face of the bearing leaving a clearance WARNING of .032 (1/16-inch). DO NOT lubricate or use oil on any moving parts. 6.
  • Page 27 5. If connecting rod cannot be properly aligned, con- 4. Remove the bottom valve screw, valve keeper strip tact Invacare Technical Service. and valve from the bottom of the valve plate. 6. Twist the aluminum sleeve back up onto the pis- 5.
  • Page 28 PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) 14. Take pressure readings to ensure proper system pressures (Refer to PROCEDURE 21 - SIEVE BED PRES- SURE TAP-IN KIT INSTALLATION AND BED PRESSURE CHECK in the IRC3LX/ IRC5LX/IRC5LXO2 SER- VICE MANUAL).

  • Page 29: Compressor Top End Rebuild - 5 And 6 Liter Rebuilding Thomas Model 2639 Or 2619

    PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) 6. Remove the crossover tubes from the head as- CAUTION sembly. TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM NOTE: Replace all four (4) "O" rings. ELECTRICAL OUTLET BEFORE SERVICING. 7.
  • Page 30 PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) Removing the Piston Head and Teflon Ring 2. Remove the four (4) phillips screws on the top (FIGURE 11) of the piston and remove the piston head and Teflon ring. NOTE: An Allen wrench may be inserted into the 3.
  • Page 31 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) Installing the New Teflon Rings and Piston 4. Install and tighten the phillips head screws until snug to align the Teflon ring with the aluminum Heads (FIGURE 12) sleeve. CAUTION 5.
  • Page 32 PROCEDURE 2 PREVENTIVE MAINTENANCE NOTE: Ensure that the gaskets are not pinched or 10. Run unit and check for leaks around compres- out of position when reinstalling the valve plates sor hoses (Refer to PROCEDURE 19 - LEAK and the head assembly. Doing this will prevent TEST).

  • Page 33: Rebuilding Thomas Model 2650

    PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) REMOVING COMPRESSOR AND COMPRESSOR Compressor Top End Rebuild - 5/6 Liter HEADS (REFER TO FIGURE 15). (For S/N after 98XXXXX) Compressor CAUTION 1. Unplug concentrator. TO PREVENT ELECTRICAL SHOCK, ALWAYS DIS- 2.
  • Page 34 PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) Item Description Valve Plate Assembly Connecting Rod, Eccentric & Bearing Assembly Valve Keeper Valve - Pressure Relief Valve Restraint Teflon Piston Cup Valve Flapper - Intake & Exhaust Piston Sleeve Screw - Valve Flapper Screw - Piston Cup Retainer Valve Plate...
  • Page 35 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) Connecting Rod/Eccentric Assembly Exhaust Flapper Valve, Valve Restraint and Valve Keeper 8. Rotate shaft to align the eccentric's set screw 2. Install the NEW exhaust flapper valve, valve restraint with the access hole in the bottom of the com- and valve keeper to the top of the valve plate pressor housing.
  • Page 36 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued) Connecting Rod/Eccentric Assembly 9. With gloved-hand or clean cloth, pre-form piston cup if 14. Reinstall the fan onto the shaft in original orien- necessary. tation. 10. Gently slide cylinder sleeve up and over cup to fully Valve Plate form it.

  • Page 37: Preventive Maintenance Record

    PREVENTIVE MAINTENANCE PROCEDURE 2...

  • Page 38: Procedure 3 - Replacing P.e. Valve (5Lx/6Lx/5Lxo2/6Lxo2)

    PROCEDURE 3 P. E. VALVE PROCEDURE 3 - REPLACING P.E. VALVE - 5LX/5LXO2/5LXO2T/6LXO2/6LXO2T ONLY (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET).

  • Page 39: Procedure 4 - Replacing Sieve Beds

    9. Install NEW sieve beds reversing STEPS 3-7. NOTE: After replacing sieve beds, retiming may be necessary. (Refer to PROCEDURE 18 - TIMING OF THE INVACARE 5 CONCENTRATOR). 10. Run unit and check for leaks (Refer to PROCEDURE 19 - LEAK TEST).

  • Page 40: Procedure 5 - Replacing Check Valves

    PROCEDURE 5 CHECK VALVES PROCEDURE 5 - REPLACING CHECK VALVES (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET) NOTE: Replace one or both check valves when performing this procedure. The check valves are one-way directional and can be checked by passing air through them.

  • Page 41: Procedure 6 - Replacing/Adjusting Regulator

    REGULATOR PROCEDURE 6 PROCEDURE 6 - REPLACING / ADJUSTING REGULATOR Replacing Regulator (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3.

  • Page 42: Adjusting Regulator

    PROCEDURE 6 REGULATOR PROCEDURE 6 - REPLACING / ADJUSTING REGULATOR Adjusting Regulator (FIGURE 2) 1. Turn unit ON. 2. Install pressure gauge onto oxygen outlet. NOTE: Check O2 pressure at oxygen outlet. It should read a steady 5 p.s.i. + 0.5 p.s.i. If pressure is not in specification, proceed to STEP 3.

  • Page 43: Procedure 7 - Replacing Compressor Assembly Or Capacitor

    COMPRESSOR PROCEDURE 7 PROCEDURE 7 - REPLACING COMPRESSOR ASSEMBLY OR CAPACITOR 6. Cut and remove ty-wraps. CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS 7. Remove the four (4) mounting screws securing DISCONNECT CONCENTRATOR FROM ELEC- compressor brackets to base. TRICAL OUTLET BEFORE SERVICING. 8.

  • Page 44: Procedure 8 - Replacing Heat Exchanger

    PROCEDURE 8 HEAT EXCHANGER PROCEDURE 8 - REPLACING HEAT EXCHANGER (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3. Remove compressor assembly (Refer to PROCEDURE 7 - REPLACING COMPRESSOR ASSEM- BLY OR CAPACITOR).

  • Page 45: Procedure 9 - Removing Control Panel

    CONTROL PANEL PROCEDURE 9 PROCEDURE 9 - REMOVING CONTROL PANEL (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3. Remove the two (2) upper mounting screws that secure the control panel. 4.

  • Page 46: Procedure 10 - Replacing Cooling Fan

    14. Reinstall control panel (Refer to PROCEDURE 9 - REMOVING CONTROL PANEL). 15. Plug unit in and check for leaks (Refer to PROCEDURE 19 - LEAK TEST). NOTE: Run unit for at least 1/2 hour. If unit runs properly, replace cover. If not, call Invacare Tech- nical Service.
  • Page 47 PROCEDURE 10 PROCEDURE 10 (continued) - REPLACING COOLING FAN (FIGURE 1) Air Flow Arrow (Rear of Fan.) Cooling Fan Spade (See Drawing for Rear Connectors Detail.) (Rear of Fan.) Self Tapping Screw GREEN Ground Wire Mounting Clips (4) Spade Connectors Fan Detail Adjustable (Rear of Fan)

  • Page 48: Procedure 11 - Replacing P.c. Boards

    Wiring Harness from 8-Pin Wiring Harness Connector (P5). c) Transformer connector (P3). d) Pressure transducer tubing from product tank. Integrated Board (5LXO2/5LXO2T/6LXO2/6LXO2T) After S/N97JXXXX a) Wiring Harness from 9-Pin Wiring Harness Connector (P1). b) Wiring Harness from 8-Pin Wiring Harness Connector (P5).
  • Page 49 Transducer LED2 9 Pin Wiring Harness Tubing Connector (To P1) LED1 P2 (Remove Sensor Wiring 8-Pin Wiring Harness CONTROL (Bottom) P.C. BOARD Harness Jumper.) Connector (To P5) 3LX, 5LX, 5LXO2, 5LXO2T, 6LXO2, 6LXO2T) FIGURE 1 - REPLACING P. C. BOARD(S)

  • Page 50: Procedure 12 - Replacing Transformer Assembly

    PROCEDURE 12 TRANSFORMER PROCEDURE 12 - REPLACING TRANSFORMER ASSEMBLY (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3. Remove control panel (Refer to PROCEDURE 9 - REMOVING CONTROL PANEL). 4.

  • Page 51: Procedure 13 - Replacing On/Off Switch

    ON/OFF SWITCH PROCEDURE 13 PROCEDURE 13 - REPLACING ON/OFF SWITCH (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3. Remove control panel (Refer to PROCEDURE 9 - REMOVING CONTROL PANEL). 4.

  • Page 52: Procedure 14 - Replacing Flowmeter

    PROCEDURE 14 FLOWMETER PROCEDURE 14 - REPLACING FLOWMETER (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3. Remove control panel (Refer to PROCEDURE 9 - REMOVING CONTROL PANEL). 4.

  • Page 53: Procedure 15 - Replacing Hour Meter

    HOUR METER PROCEDURE 15 PROCEDURE 15 - REPLACING HOUR METER (FIGURE 1) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3. Remove control panel (Refer to PROCEDURE 9 - REMOVING CONTROL PANEL). 4.

  • Page 54: Procedure 16 - Replacing 4-Way Valve/Manifold Assembly/Pilot Valves

    PROCEDURE 16 4-WAY VALVE PROCEDURE 16 - REPLACING 4-WAY VALVE/MANIFOLD ASSEMBLY/PILOT VALVES CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. Replacing 4-way Valve (FIGURE 1) 1. Unplug unit. 2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). 3.
  • Page 55 4-WAY VALVE PROCEDURE 16 PROCEDURE 16 - REPLACING 4-WAY VALVE/MANIFOLD ASSEMBLY/PILOT VALVES CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. Ty-wraps Sieve Bed Hoses (STEP 5) (STEP 4) Mounting Spade Connectors Screw (STEP 6) Washer Bushing (2) per Sound Box...

  • Page 56: Replacing Pilot Valve Poppets And "O" Rings

    PROCEDURE 16 4-WAY VALVE PROCEDURE 16 (continued) - REPLACING 4-WAY VALVE/MANIFOLD ASSEMBLY/PILOT VALVES Replacing 4-way Valve Manifold Assembly (continued) (FIGURE 2). 24. Check for proper system operation. (Refer to the SPECIFICATION section of this manual). 25. Re-install cabinet (Refer to PROCEDURE 1 - REMOVING CABINET). Replacing Pilot Valve Poppets and "O"...
  • Page 57 17. Plug power cord in and turn concentrator on to ensure proper operation. 18. Reinstall cabinet. (Refer to PROCEDURE 1 - REMOVING CABINET). 19. If any difficulties are encountered in this installation, contact Invacare Technical Service at (800) 832-4707 or in Florida 1 - (407) 321-5630.

  • Page 58: Procedure 17 - Senso2 Alarm Indicators And Switch

    TRICAL OUTLET BEFORE SERVICING. Call Supplier Operation YELLOW Below Normal The Invacare 5 and 6 with SensO2 is equipped with Normal GREEN an oxygen purity indicator. This feature monitors the purity level of the oxygen generated by the FIGURE 1 - INDICATOR LIGHTS concentrator.

  • Page 59: Procedure 18 - Timing Invacare 5 And Invacare 6 Concentrators

    To accommodate for varying tolerances when replacing components, an adjustable timer is used to control the shifting of the INVACARE 5 and 6 Pressure Equalization (P.E.) Valve. Retiming of a unit involves increasing or decreasing the switch located on the lower right side of the bottom P.C. Board.
  • Page 60 8. Reinstall control panel. (Refer to PROCEDURE 9 - REMOVING CONTROL PANEL). 9. Reinstall cabinet. (Refer to PROCEDURE 1 - REMOVING CABINET). TIMING IRC5LXO2/5LXO2T/6LXO2/6LXO2T - UNITS WITH INTEGRATED OR TELEMETRY BOARDS (FIGURE 1) To accomodate the varying tolerances when replacing components, an adjustable timer is used to control the shift time of the pressure equlization (P.
  • Page 61 The timing switch can be changed to manual control by selecting position "1" to "E". Verification of oxygen production MUST be performed accord- ing to SECTION A of this procedure. CONCENTRATION LEVELS CHART - (IRC5LX/5LXO2/6LXO2) L/Min. O2 Level 1 L/min.

  • Page 62: Procedure 19 - Leak Test

    Top Fittings of Sieve P.E. Valve Fittings CAUTION Beds (STEP 5-b). [5LX/5LXO2/6LXO2 Apply small amount of leak test solution to fit- ONLY.] (STEP 5-c.) tings only. Avoid all other components. DO NOT leak test 4-way Valve body. Carefully leak test for pressure leaks around Sieve Bed Hoses at 4-way Valve.

  • Page 63: Procedure 20 - Alarm And Sensor Test

    With unit OFF, disconnect the compressor connector from the main wiring harness. Plug unit in and turn power ON. The Time-Out Failure alarm should activate within 40 seconds. (Refer to FIGURE 5 for Shutdown Mode.) NOTE: If any alarm fails to perform to specification, contact Invacare Technical Service. Compressor Compressor Molex Connector [Disconnect from Harness(STEP 2-b)].
  • Page 64 High Pressure Test (FIGURE 2). 3-a. With unit running and flow set at 3 L/min. for 3LX, 5 L/min. for 5LX/5LXO2 or 6 L/min. for 6LXO2, remove one (1) RED wire from the top of Pilot Valve 1. The high pressure alarm should activate within 40 seconds.
  • Page 65 If any alarm fails to perform to specification, contact Invacare Technical Service. Your Invacare concentrator is now ready for an additional year. Use the PREVENTATIVE MAINTE- NANCE RECORD in this manual to record date and number of hours when preventive maintenance was performed on the concentrator, or any repairs made.
  • Page 66 PE Valve Coil Continuous Eprom Failure Continuous Ram Failure Continuous Oxygen Sensor Failure *No Shutdown, Unit continues to run. All alarms have Compressor Shutdown, Horn ON and 5LXO2/5LXO2T, 6LXO2/6LXO2T ONLY - RED Panel LED ON. FIGURE 5 - ALARM MODES...

  • Page 67: Procedure 21 - Sieve Bed Pressure Tap-In Kit Installation And Bed Pressure Check

    SIEVE BED PRESSURE CHECK PROCEDURE 21 PROCEDURE 21 - SIEVE BED PRESSURE TAP-IN KIT INSTALLATION AND BED PRESSURE CHECK (FIGURES 1, 2 & 3) CAUTION TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING. DISASSEMBLY INSTALLATION (FIGURE 2) WARNING Turn power OFF and unplug unit.
  • Page 68 (3 liters for 3LX, 5 liters for 5LX/5LXO2 1. Insert 1/4-inch plug and 1/4 x 2-inch silicone and 6 liters for 6LXO2). tubing onto the "T" fitting and secure with 1/4- NOTE: Wait approximately 5 minutes to allow inch clamp.
  • Page 69 NOTES...
  • Page 70 NOTES...

  • Page 71: Warranty

    Invacare Corporation's satisfaction to be defective, such product shall be repaired or replaced, at Invacare Corporation's option. This warranty only applies to the labor for repairs performed by the Invacare Service Department or authorized Invacare dealers. It does not apply to the labor performed by the purchaser or user.
  • Page 72 INVACARE CORPORATION Respiratory Products Group 699 Aero Lane - Sanford, Florida 32771 Customer Service - Toll Free (800) 333-6900 l Technical Support - Toll Free (800) 832-4707 In Florida (407) 328-5900 Form No. 96-151 Part No. 2002728 Rev. E 10/01...

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