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INVACARE OXYGEN CONCENTRATORS SERVICE MANUAL

1. G E R PROCEDURE 8 HEAT EXCHANGER PROCEDURE 8 REPLACING HEAT EXCHANGER FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove compressor assembly Refer to PROCEDURE 7 REPLACING COMPRESSOR ASSEM BLY OR CAPACITOR NOTE Concentrator can be laid down to more easily access heat exchanger 4 Cutthe four 4 ty wraps that secure the heat exchanger to the four 4 ty wrap mounts under the top of the sound box CAUTION If applicable use care not to damage fins of heat exchanger when installing removing or cleaning 5 Loosen the adjustable clamps on the compressor output and valve manifold input hoses at the front and rear of the heat exchanger Move the heat exchanger out to access the hoses and remove them from the heat exchanger Remove heat exchanger 8 Ensure that protective paper cover is installed onto the front of finned heat exchanger If NEW heat exchanger is being installed discard protective paper cover 9 Reverse STEPS 4 6 to install new heat exchanger 10 Torque adjustable clamps to heat exchanger to 6 5 1 inch lbs 11 Run unit and check for leaks Refer to PROCEDURE 19 LEAK TEST 12 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Ty wrap Mounts 4 Removed for Clarity ONLY DO NOT REMOVE
2. c Reinforced Tubing EE x Sieve Bed Emi E T amas Plastic Clamp p M Plastic Caps Adjustable Clamp FIGURE 1 REPLACING SIEVE BEDS 39 V A L V E 5 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 Air should flow in one direction ONLY 3 Loosen adjustable clamp on product tank and slide clamp down below the adjustable clamp hanger to access check valve s 4 Remove ty wraps from top and bottom of the check valve s and disconnect check valve s from tygon tubing CAUTION The check valves are one way directional and MUST be installed correctly The letters VAC are printed on the bottom half of the check valves and should be installed with VAC to the underside of the check valve Low system pressures and eventual bed contamination will result if not prop erly installed 5 Install the NEW check valve s into the tygon tubing NOTE Ensure proper orientation of check valves when installing 6 Secure the check valve s by installing new ty wraps to the tygon tubing where pre
3. REMOVE THE COIL YOKE FROM THE The Washer between the Bottom of the Yoke and the Bottom of Coil IS NOT DESIGNED TO BE REMOVED and difficulty in reassembly will be encountered that could cause damage to components 4 Set aside the coil with yoke and pilot valve stem assembly with the wires still intact CAUTION DO NOT use sharp tools to remove O ring from plastic manifold opening Damage to the plastic manifold and or plastic manifold airflow passage could occur FIGURE 3 5 Remove O ring from manifold opening 6 Discard old poppet and O ring Manifold Ring pening Air Flow Passage FIGURE 3 REMOVING INSTALLING O RINGS 7 Install NEW ring into the opening in the plastic manifold housing CAUTION overtighten pilot valve stem when installing it into plastic manifold Damage to the rubber ring and or plastic manifold may occur 8 Install NEW slotted poppet into the bottom of the pilot valve stem with tapered end facing to the bottom FIGURE 3 9 Install pilot valve stem and NEW slotted poppet with coil with yoke and locknut intact into manifold opening 56 AWAYVALVE PROCEDURE 16 continued REPLACING 4 WAY VALVE MANIFOLD ASSEMBLY PILOT VALVES LEAVE TOGETHER Locknut Yoke Pilot Valve Pilot Valve Stem Yoke Locknut Spade Connectors Leave Wir
4. Valve leaking DURE 4 1 Replace Inlet Filter PROCE DURE 2 2a Replace or repair 2b Repair leak or replace 2c DO NOT use extension cords Use another outlet 2d Rebuild Top End of Compressor PROCEDURE 2 3a Replace or retighten 3b Replace or retighten tubing Re place Heat Exchanger PROCE DURE 8 4 Replace PROCEDURE 6 Replace P E valve Check volt age at P E valve connector on 24 volt D C scale The P E valve activates or energizes approximately 1 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 If the P C Board voltage acts normally replace the P E valve PROCEDURE 3 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 pres sures and will cause compressor shut down NOTE REFER TO THE REPAIR REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER REPLACEMENT OR ADJUSTMENT PROCEDURES 16 SYMPTOM PROBABLE CAUSE SOLUTION LOW CONCENTRATION NOTE Check for O2 purity using a calibrated Oxygen Ana lyzer at Test Point 1 OXYGEN OUTLET of the concentrator Internal Status Indicators RED On GREEN Off LX Control Board RED Two 2 Flash GREEN One 1 Flash 7396 Shutdown Integrated Sensor Board RED Two 2 Flash GREEN Two 2 Flashes 8
5. INVACARE OXYGEN CONCENTRATORS INVACARE 3 amp 5 INVACARE 5 amp 6 Model 3LX Model 5LXO2 SensO Model 5LX Model 5LXO2T SensO Model 6LXO2 v SensO Model 6LXO2T SensO Model 6LXO2H SensO Model 6LXO2HT SensO SERVICE MANUAL DEALER KEEP THIS MANUAL THE PROCEDURES IN THIS MANUAL MUST BE PERFORMED BY AN AUTHORIZED DEALER ONLY 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 5 A L N O T E 5 WARNING DO NOT OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND UNDERSTANDING THIS MANUAL IF YOU ARE UNABLE TO UNDERSTAND THE WARNINGS AND INSTRUCTIONS CONTACT A HEALTHCARE PROFESSIONAL DOCTOR THERAPIST BEFORE ATTEMPTING TO USE THIS EQUIPMENT OTHERWISE INJURY OR DAMAGE MAY RESULT SAVE THESE INSTRUCTIONS TABLE OF CONTENTS TABLE OF CONTENTS 2 PROCEDURE 7 REPLACING COMPRESSOR SAFETY SUMMARY 4 ASSEMBLY OR CAPACITOR gucipUlizlol 7 Repl A SPECIFICATIONS 8 To 95 Recommended End User Guidelines Replacing Capacitor for Opt
6. PROCEDURE 5 REPLACING CHECK VALVES 40 PROCEDURE 6 REPLACING ADJUSTING REGULATOR 2 41 Replacing Regulator 41 Adjusting Regulator 42 PROCEDURE 9 REMOVING CONTROL PROCEDURE 12 REPLACING TRANSFORMER ASSEMBLY PROCEDURE 13 REPLACING ON OFF SOV ue PROCEDURE 14 REPLACING FLOWME TER PROCEDURE 15 REPLACING HOUR PROCEDURE 16 REPLACING 4 WAY VALVE MANIFOLD ASSEMBLY PILOT VALVES Replacing 4 way Valve Replacing 4 way Valve Manifold t p ce Replacing Pilot Valve Poppets and O ills e PROCEDURE 17 SENSO2 ALARM INDICATORS AND SWITCH PROCEDURE 18 TIMING INVACARE 5 AND INVACARE 6 CONCENTRATORS PROCEDURE 19 LEAK TEST PROCEDURE 20 ALARM AND SENSOR PROCEDURE 21 SIEVE BED PRESSURE TAP IN KIT INSTALLATION AND BED PRESSURE CHECK WARRANTY eau SII MAIS L E O F O N T E N T 5 5 5 U M M A R Y SAFETY SUMMARY SAFETY SUMMARY READ THE FOLLOWING INFORMATION BEFORE OPERATING THIS PRODUCT WARNING The use of oxygen therapy requires that special care be taken to red
7. 1 Torque wrench that has an inch pound scale for head screws set screws flapper valve screw and pipe plugs 2 Torx T 25 drive for torque wrench for head screws or flat blade 5 32 inch Allen wrench attachment for torque wrench for eccentric set screw 4 Flat blade screwdriver attachment or 1 2 inch hex Socket for torque wrench for flapper valve screw 5 T 27 screwdriver attachment for torque wrench for retainer screws WARNING lubricate use oil any moving parts The compressor eccentric uses a precision sealed bearing 33 REMOVING COMPRESSOR AND COMPRESSOR HEADS REFER TO FIGURE 15 Compressor 1 Unplug concentrator 2 Carefully remove compressor from concentrator Re fer to PROCEDURE 7 REPLACING COMPRES SOR ASSEMBLY OR CAPACITOR Compressor Heads 3 Clean loose dirt from the outside of the compressor 4 Use the TORX T 25 torque wrench and loosen the eight 8 head screws 5 Remove the compressor heads Valve Plate 6 Lift off the valve plate NOTE Note the position of the tab on valve plate for reassembly FIGURE 14 es al Of ok en 2 2200000000009 FAG URE 14 TAB POSITIONS NOTE To avoid confusion ONLY service one 1 end of the compressor at a time Fan 7 Remove the fan by releasing the pressure from the clip holding it to the shaft NOTE Note position of fan orientation for reas s
8. ME Adjustable Clamp Sound Box Lar pa NE v Compressor Output Hose x N SE 77 Le To Heat Exchanger from SS S gt Compressor 3 5 ww E SS L Adjustable Valve Manifold Input Hose V Clamp From Heat Exchanger to 4 way Valve Manifold Protective Paper Cover NOTE Protective paper cover not necessary for unfinned models Ty wraps 4 Heat Exchanger NOTE Fins not present on all models FIGURE 1 REPLACING HEAT EXCHANGER 44 CONTROL PANEL PROCEDURE 9 PROCEDURE 9 REMOVING CONTROL PANEL FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove the two 2 upper mounting screws that secure the control panel Loosen the two 2 lower mounting screws that secure the control panel aoe YY x Cut the ty wraps that secures the 1 8 inch 1 0 transducer tubing to the product tank and remove tubing from the top of the product tank Remove the 1 4 inch I D pressure regulator tubing from the tee fitting behind the control panel Disconnect the 9 pin molex connector from P C Board Disconnect the 8 pin molex connector from P C Board Disconnect the 4 pin connector to interface cable from P C Board Telemetry Unit ONLY 10 Remove and code connectors from circuit breaker hour meter and On Off swit
9. Refer to PROCEDURE 1 REMOVING CABINET TOP LEFT 73 Purity Switch Settings 85 Sensor Board FIGURE 2 PURITY INDICATOR SWITCH TIMING PROCEDURE 18 PROCEDURE 18 TIMING THE INVACARE 5 AND 6 CONCENTRATORS FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING 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 Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Plug concentrator in and turn power on set flow at 5 L min for the IRCS5LX IRC5LXO2 Run unit for 20 minutes Take O2 reading If oxygen concentration is within specification retiming is not necessary D a Unplug unit and reinstall cabinet UNITS WITH CONTROL BOARD OR LX SMT BOARD IRCSLX 5LXO2 1 If retiming is needed perform the following a Unplug unit b Remove or loosen control Panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL C Locate the timing switch on the lower right side of the bottom P C Board WARNING Use extreme care when making adjustments to the timing switch DO NOT allow screwdriver or your hands to contact the Board when unit is plugged and ON Turn unit OFF and unpl
10. If you don t feel a suction but you feel or hear a thump as you turn the fan DO NOT connect the unit to a power source Review the assembly procedure for possible error 18 Reinstall compressor Refer to PROCEDURE 7 REPLACING COMPRESSOR ASSEMBLY OR CAPACITOR 19 Run unit and check for leaks around compres sor hoses and compressor tubes Refer to PRO CEDURE 19 LEAK TEST 20 Take pressure readings to ensure proper system pres sures Refer to PROCEDURE 21 SIEVE BED PRESSURE TAP IN KIT INSTALLATION AND BED PRESSURE CHECK in the IRC3LX IRC5LX IRC5LXO2 SERVICE MANUAL 36 PROCEDURE 2 PREVENTIVE MAINTENANCE ae ee a a 120 19 20 19 120 16 COX IS X 18 X 1 Ld39X3 STSGOW 11V 19114 eur u eoejdeu 000 05 AH3 3 _ LLL lll 1osseduoo jo doi pinqay OL ft EL LL LL C LC LL S ien isneux LIT SV 6501 JOBMOd x499u2 STSGOW 2 OSN3S ueD XQ 11111111 ee og con 5 AONVNALNIVIN 3ALLN3A38d 10 ATIVONNV COSN3S LNOHLIM SLINN 2 SAVG 06 AH3 3 ett teens utr pearson vou vue JNOH SJnoH
11. Secure with a 1 4 inch clamp 1 4 Clamp T Fitting 1 4 x 2 inch Silicone FIGURE 2 INSTALLATION PRESSURE TESTING FIGURE 3 1 Remove plug and Connect pressure gauge to the 1 4 x 2 inch silicone tubing and secure with a 1 4 inch clamp 2 Check each connection to make sure they are tight 3 Turn the concentrator ON S R E 5 5 U R E PROCEDURE 21 SIEVE BED PRESSURE CHECK PROCEDURE 21 SIEVE BED PRESSURE TAP IN KIT INSTALLATION AND BED PRESSURE CHECK FIGURES 1 2 amp 3 NOTE Adjust the concentrator to MAXIMUM AFTER TESTING FIGURE 4 liter flow 3 liters for 3LX 5 liters for 5LX 5LXO2 and 6 liters for 6LXO2 1 Insert 1 4 inch plug and 1 4 x 2 inch silicone tubing onto the T fitting and secure with 1 4 NOTE Wait approximately 5 minutes to allow inch clamp system pressures to achieve proper equallibrium before testing 2 Reinstall the cabinet onto the base of the con centrator 4 The pressure in the concentrator should rise within 20 seconds to 20 PSIG 3 BEFORE 1 4 inch 97 21 PSIG 3 AFTER 97 and shift p the 4 way valve to the opposite sieve bed 5 5 R E 5 5 0 R E 5 After the 4 way valve shift the pressure in the concentrator will drop to 14 PSIG 2 before ris ing within 20 seconds to 20 PSIG 3 BEFORE 97 and 21 PSIG 3 AFTER 97 and shift the 4 way valve to the op
12. pesde 4 pJooeH NOILO3dSNI HOV3 ON 5 TSCOWN dHOIVH IN3JONOO N39AXO 38HVOVANI qdoo3ad 3o9NVN3 LNIVIN SAILNSASdd 37 PROCEDURE 3 P E VALVE PROCEDURE REPLACING VALVE 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T ONLY FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove spade connectors from P E Valve assembly Remove ty wraps from P E Valve tubing ae x Remove valve assembly from tubing CAUTION If Valve is not to be installed immediately plug the Valve tubing to prevent sieve bed contamination 6 Install new P E valve assembly immediately by reversing STEPS 3 5 NOTE After replacing P E valve retiming may be necessary Refer to PROCEDURE 18 TIMING OF THE INVACARE 5 CONCENTRATOR 7 Rununit and check for leaks Refer to PROCEDURE 19 LEAK TEST 8 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET P E Valve Tubing Ty Wrap P E Valve Tubing P E Valve Assembly Sieve Beds SHOWN for Reference FIGURE 1 REPLACING VALVE 5LX BLXO2 5LXO2T 6LXO2 6LXO2T ONLY 38 SIEVE BEDS PROCEDURE 4 PROCEDURE 4 REPLACING SIEVE BEDS FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLE
13. power switch on working check protective device alarm off Battery Free circuit in home s electrical panel or drained consult an electrician Also ensure that unit is properly plugged in DO NOT use extension cords Move to another 2 Power Cord outlet or circuit a Frayed 2a Replace cord b Broken or damaged spade 2b Replace power cord connectors on plug c Spade connector from Power 2c Reattach connector Cord loose or disconnected inside back of unit 3 On Off switch a Disconnected wire 3a Check all electrical connections to the On Off switch for any disconnected wires b Faulty switch 3b If the concentrator does not come on at all and wiring is intact color code and remove wires one at a time and clean the On Off switch with contact cleaner while turning the switch on and off Reinstall switch and turn power on If switch still doesn t work replace switch Transfer wires from old switch to new switch one at a time to the matching contact NOTE REFER TO THE REPAIR REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER REPLACEMENT OR ADJUSTMENT PROCEDURES 14 TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE SYMPTOM PROBABLE CAUSE SOLUTION POWER LOSS Continued 4 Circuit breaker 4 Reset breaker 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 power light on c
14. supplied by Invacare be used with this product and NOT exceed 50 ft 15 2m in length MAINTENANCE The Invacare Oxygen Concentrator was specifically designed to minimize routine preventative maintenance at intervals of once per year Only professionals of the healthcare field or persons fully conversant with this process such as authorized or factory trained personnel should perform preventative 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 SAFETY SUMMARY SAFETY SUMMARY Continued TO REDUCE THE RISK OF ELECTROCUTION WARNING ALWAYS unplug this product IMMEDIATELY after using Avoid using while bathing If continuous usage is required by the physicians prescription The concentrator must be located in another room at least seven 7 feet from the bath DO NOT come in contact with the concentrator while wet DO NOT place or store product where it can drop into water or other liquid DO NOT reach for product that has fallen into water UNPLUG IMMEDIATELY TO REDUCE THE RISK OF BURNS ELECTROCUTION FIRE OR INJURY TO PERSONS WARNING This device is to be used only in accordance with the prescription of a physician and this Owners Manual If at any time the patient or attendant c
15. unit is turned on replace P C Board PROCEDURE 11 1b Check spade connectors on pilot valves 1 and 2 and connectors on P C Board 1c Replace P C Board PROCE DURE 11 For 5LX or 6LX Unit may require retiming after P C Board replacement PRO CEDURE 18 2a If voltage rises to approximately 24 volts D C when unit shuts down P C Board is func tioning properly Replace 4 way Valve PROCEDURE 16 NOTE REFER TO THE REPAIR REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER REPLACEMENT OR ADJUSTMENT PROCEDURES 15 T R O U L E 5 O O T G TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE HIGH PRESSURE Continued 2 b Bad Coil 2b Replace 4 way Valve PROCE DURE 16 3 Sieve Beds 3 Replace Sieve Beds PROCE R O U L E 5 O O T G LOW PRESSURE Internal Status Indicators RED On GREEN On LX Control Board RED One 1 Flash GREEN One 1 Flash Integrated Sensor Board LX SMT Board Unit plugged in power switch on continuous audible alarm Com pressor shut down Failure to cycle due to low pressure Contaminated Inlet Filter Dirty or Plugged Compressor a Leaks at fittings or tubing Leaking or defective relief valve Insufficient voltage at outlet Worn Cup Seals or Gaskets Heat Exchanger a Leak at tubing or body cham ber b Inspect tubing and heat exchanger 4 Regulator cracked or leaking
16. use the Invacare Pediatric Flowmeter PF16 460W 6LXO2 6 2 350W 400W 3LX 400W 5LX 5LXO2 5LXO2T 35 psi 3 5 psi 241 kPa 24 1 kPa SPECIFICATIONS SPECIFICATIONS CONTINUED S Filters Cabinet Compressor Inlet Bacteria Safety Systems Current overload or line surge shutdown F High temperature compressor shutdown High pressure alarm w compressor shutdown Low pressure alarm w compressor shutdown A Battery Free Power Loss Alarm T SensO2 Oxygen System 5LXO2 5LXO2T 6LXO2 6LXO2T ONLY Width 18 inches 45 7 cm O Height 23 75 inches 60 3 cm N Depth 14 inches 35 6 cm 5 Weight 54 1 5 24 5 kg All 5LX and 6LX Models 53 Ibs 23 9 kg SLX Shipping Weight 59 Ibs 27 kg All 5LX and 6LX Models 58 Ibs 26 1 kg SLX Operating Temperature Exhaust Less than Ambient 35 F 16 C Oxygen Output Less than Ambient 4 F 2 Cabinet Impact Resistant flame retardant plastic cabinet Regulatory Listing ETL certified complying with applicable portions of UL 1431 RECOMMENDED END USER GUIDELINES FOR OPTIMUM PERFORMANCE Temperature 50 95 F 10 35 C Electrical No extension cords Placement No closer than 3 inches from any wall Tubing Crush Proof Tubing 50 feet 15 2 m maximum do NOT pinch Room Characteristics Smoke and soot free No confined spaces closet Relative Humidity 20 to 60 Time of Operation Up to 24 hours per day SHIPP
17. BED PRESSURE TAP IN KIT INSTALLATION AND BED PRESSURE CHECK FIGURES 1 2 amp 3 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING DISASSEMBLY WARNING Turn power OFF and unplug unit 1 Remove the eight 8 5 8 inch screws that secure the cabinet to the base and remove the cabinet from the base of the concentrator 2 Turn unit so the back faces you 3 Loosen and lower the adjustable clamp on the product tank 4 Pull product tank up and back to access the check valve PVC tubing CAUTION 3LX and 5LX standard units without 5 02 are equipped with a restrictor assembly located on the left top of the product tank as viewed from the rear DO NOT remove tubing or restrictor Install tap in kit on the opposite side 5 Locate the check valve and PVC tubing to your right 6 Cut in half the PVC tubing below the check valve Check Valve Cut PVC Tubing Restrictor below Check SHOWN for Valve to install Clarity Tap in Kit Product Tank Adjustable Clamp FIGURE 1 DISASSEMBLY 67 INSTALLATION FIGURE 2 Insert the T fitting into the ends of the PVC tubing 2 Secure 1 4 inch clamps to each end of the PVC tub ing T fitting connection 3 Attach the 1 4 x 2 inch silicone tubing to the NEW T fitting and secure with a 1 4 inch clamp 4 Insert plug into the open end of the 1 4 x 2 inch silicone tubing 5
18. LEDs will illuminate for at least 5 minutes After 5 minutes if the oxygen purity exceeds 85 2 the GREEN LED will illuminate If the oxygen level is not above 85 2 after the first 5 minutes LEDs will remain off The system will wait for a maximum of 30 minutes from start up to reach 85 2 before activating an alarm Environ mental 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 minutes the oxygen concentration alarm sequence will activate depending upon the position of the indicator switch All units are preset at the factory at 73 3 When oxygen concentration is above 85 2 the sensor measures oxygen purity every 10 minutes If a reading falls below 85 2 and the alarm indicator is in the 73 mode or no switch is present the oxygen sensor measures purity continuously and a yellow LED will illuminate If the oxygen purity falls below 73 3 the RED LED Alarm Shut Down mode will activate If the selector switch is present and it is set at 8526 the RED LED Alarm Shut Down mode will activate if the oxygen purity falls below 85 2 12 PNEUMATIC DIAGRAM PNEUMATIC DIAGRAM INVACARE 3 amp 5 OXYGEN CONCENTRATORS MODELS IRC3LX IRCSLX IRC5LXO2 RESTRICTOR TEST POINT 2 ASSEMBLY BETWEEN PRODUCT TANK AND BACTERIA IRC3LX amp CHECK VALVES CHECK VALVE FILTER IRCSLX ONLY FLOWM
19. P C BOARD S FIGURE 1 7 Position NEW P C board s 8 Snap P C Board s into place 9 3LX 5LX and 5LXO2 after S N 97JXXXX Connect the following SensO2 or Integrated Top P C Board 5LXO2 ONLY a Sensor tubing to T fitting behind control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Control Bottom P C Board IRCSLX IRCSLX IRC5LXO2 a Wiring Harness to 9 Pin Wiring Harness Connector P1 b Wiring Harness to 8 Pin Wiring Harness Connector P5 c Transformer connector P3 10 Reinstall Sensor Wiring Harness Jumper P2 to P C board s 11 Reconnect P6 4 pin connector on wiring harness on Telemetry Units ONLY 12 Set timing switch to position F for 3LX 13 Run unit and ensure that concentrator operates to specification NOTE After replacing P C Board s retiming may be necessary Refer to PROCEDURE 168 TIMING THE INVACARE OXYGEN CONCENTRATOR 14 Check for leaks at transducer tubing on product tank cap Refer to PROCEDURE 19 LEAK TEST in this manual 15 Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL 16 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Control Panel INTEGRATED REAR SETUP SensO2 BOARD SLXO2 After BLXO2 5LXO2T 6LXO2 S N97JXxxx 9LXO2T ONLY a Transformer Stand off for SensO2 PS Board gt 29 Ex WE AS ese TIEN lt gt
20. Valve Tygon Tubing SHOWN for identifi To Top cation Fitting of Tygon Tubing p Flowmeter Remove Bacteria Filter Bacteria Filter Filter FIGURE 3 BACTERIA FILTER 22 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 continued PREVENTIVE MAINTENANCE Exhaust Muffler Canister Exhaust Muffler Cleaning Finned Heat Exchanger FIGURE 5 FIGURE 4 NOTE The following should be performed at 20 000 hr intervals although these procedures 1 Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET can be performed as needed depending upon the environment the concentrator is exposed to Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET 3 3 Remove the ty wraps that secure 4 way Valve manifold exhaust tubing to top fittings of muffler canister canister 4 Disconnect the exhaust hoses from fittings on 5 top of canister 5 Remove mounting screw s from rear of sound box and remove muffler canister 6 Unscrew counterclockwise the exhaust muffler located on the muffler canister 7 Inspect muffler canister for restriction of the internal filtration and do one of the following a Replace muffler canister and muffler if plugged or restricted b Install NEW exhaust muffler if canister is in good condition 8 Install NEW re install existing muffler canister by reversing STEPS 3 5 CAUTION d
21. between the edge of the O rings and grooves in the cross over tubes and remove O rings from crossover tubes 8 Slide NEW O rings into the grooves at each end of the crossover tubes 9 Gently reinstall the crossover tubes into the end of one 1 compressor head 10 Reinstall the remaining head onto the ends of the crossover tubes Head Mounting TORX Screws 8 gt Mark the Head Assemblies Groove Ring Kring CROSSOVER TUBE FIGURE 10 REMOVING AND MARKING THE COMPRESSOR HEADS AND REPLACING CROSSOVER TUBE O RINGS NOTE After removing the head assembly rein stall Flapper Plate onto the side opposite the piston being rebuilt This restricts movement of the other piston and possible damage to the componenis WARNING lubricate or use oil any moving parts The compressor eccentric uses a precision sealed bearing 29 2 gt 2 2 gt 2 lt mawv 5 L T R E U L D PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 PREVENTIVE MAINTENANCE continued Head ama Removing the Piston Head and Teflon Ring 2 Remove the four 4 phillips screws on the top 58 FIGURE 11 of the piston and remove the piston head and M NOTE An Allen wrench may be inserted into the Teflon ring connecting screw to keep to keep it from mov Discard the old teflon ring Ing 4 Remove any debris from t
22. grooves and remove from crossover tubes 8 Slide NEW O rings into the grooves at each end of the crossover tubes 9 Gently reinstall the crossover tubes into the end of one 1 compressor head 10 Reinstall the remaining head onto the ends of the crossover tubes Mounting Phillips Head Screws Mark the Head Assemblies Separate the Head Assemblies oo fs Ring NY O Kring CROSSOVER TUBE FIGURE 6 REMOVING AND MARKING THE COMPRESSOR HEADS AND REPLACING CROSSOVER TUBE O RINGS NOTE After removing the head assembly rein stall Valve Plate onto the side opposite the piston being rebuilt This restricts movement of the other piston and prevents possible damage to the com ponenis 24 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 Place the screw driver blade between the fan and the compressor the eccentric bearing and remove the fan blade from the side of the compressor being rebuilt by 5 Use the 5 32 inch Allen wrench to remove the set gradually prying it off screw located at the base of the connecting rod 2 Locate and align the eccentric set screw with the NOTE It may be necessary to pry the spread point eccentric set
23. position These clips must be prop erly reinstalled to secure heat exchanger 6 Remove the four 4 mounting screws located under sound box and remove mounting clips 7 Move fan to access the wires connected to fan 8 Disconnect wires from spade connectors on back side of fan 9 Remove GREEN ground wire from rear of fan by removing self tapping screw on fan assembly 10 Remove existing fan WARNING Fan must be positioned properly so air from the fan blows DOWN the compressor see air flow arrow on back of fan damage to unit will occur 11 Reverse STEPS 6 9 to install NEW fan 12 Reinstall heat exchanger Refer to PROCEDURE 8 REPLACING HEAT EXCHANGER 13 Reinstall compressor Refer to PROCEDURE 7 REPLACING COMPRESSOR ASSEMBLY OR CAPACITOR 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 16 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET 46 FAN PROCEDURE 10 PROCEDURE 10 continued REPLACING COOLING FAN FIGURE 1 Air Flow Arrow Rear of Fan Cooling Fan Spade See Drawing for Rear Connectors Rear of Fan Self Tapping Screw GREEN Ground Wire Spade Connectors Adjustable Fan Detail Rear of Fan Mountin Sc
24. serial number as identification within thirty 30 days of return authorization date Do not return products to our factory without prior consent C O D shipments will be refused please prepay shipping charges LIMITATIONS AND EXCLUSIONS THE FOREGOING WARRANTY SHALL NOT APPLY TO PRODUCTS SUB JECTED TO NEGLIGENCE ACCIDENT IMPROPER OPERATION MAINTENANCE OR STORAGE SOOT OR SMOKE FILLED ENVIRONMENTS COMMERCIAL USE OR OTHER THAN NORMAL APPLICATION USE OR SERVICE OR TO PRODUCTS MODIFIED WITHOUT INVACARE CORPORATION S EXPRESS WRITTEN CON SENT INCLUDING BUT NOT LIMITED TO MODIFICATION THROUGH THE USE OF UNAUTHORIZED PARTS OR ATTACHMENTS OR TO PRODUCTS DAMAGED BY REASON OF REPAIRS MADE TO ANY COMPONENT WITHOUT THE SPECIFIC CONSENT OF INVACARE CORPORATION OR TO PRODUCTS DAMAGED BY CIR CUMSTANCES BEYOND INVACARE CORPORATION S CONTROL THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES IM PLIED WARRANTIES IF ANY INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE SHALL NOT EXTEND BEYOND THE DURATION OF THE EXPRESS WAR RANTY PROVIDED HEREIN AND THE REMEDY FOR VIOLATION OF ANY IMPLIED WARRANTY SHALL BE LIMITED TO REPAIR OR REPLACEMENT OF THE DEFECTIVE PRODUCT PURSUANT TO THE TERMS CON TAINED HEREIN INVACARE CORPORATION SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL OR INCI DENTAL DAMAGES WHATSOEVER SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTI
25. specification MUST adhered to possible damage to the 4 valve could result 6 Tighten mounting screws in the sequence described below FIGURE 1 7 Pre torque the mounting screws to 10 2 in Ibs using the torque sequence 8 The mounting screws can be now be torqued to 27 3 in Ibs in the same sequence STOP THIS IS A MAINTENANCE FREE VALVE OPENING THE VALVE WILL VOID ANY AND ALL WARRANTIES APPLICABLE TO THE VALVE 4 way Valve Face ED 9 10 30 2 MOUNTING SCREW TORQUE SEQUENCE Pre torque to 10 2 in Ibs then Torque to 27 3 in 16 Manifold Assembly FIGURE 1 REPLACING 4 WAY VALVE Replacing 4 way Valve Manifold Assembly FIGURE 2 Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Remove the ty wraps from the sieve bed hoses to top of manifold assembly Remove hoses from manifold assembly uie SYS Remove and code the four 4 spade connectors two 2 each from the two 2 valve pilots on top of the manifold assembly 7 Remove the mounting screw s that secures muffler canister assembly to rear of sound box Refer to PROCEDURE 2 PREVENTIVE MAINTENANCE 8 Remove muffler from muffler canister 9 Loosen the adjustable clamp that secures valve manifold input hose to front of heat exchanger 10 Remove hose from front of heat exchanger 54 AWAYVAL
26. 13 17 to re install 19 Slide 4 way manifold assembly complete through the cutout in top of sound box then install the two 2 mounting screws washer and bushings into the manifold to secure the 4 way valve assembly to the top of sound box 20 Reverse STEPS 4 10 21 Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL 22 Plug unit in and turn power ON 23 Run unit and check for leaks at hose connections Refer to PROCEDURE 19 LEAK TEST 55 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 Rings FIGURES 3 amp 4 NOTE Both pilot valves can be accessed while the 4 way valve and sieve bed hoses are intact on the concentrator NOTE DO NOT remove spade connectors from pilot valve coils Simply lay coils with spade con nectors aside while performing this installation 1 Hold pilot valve stem with the flat blade screwdriver and turn the 9 16 inch locknut counterclockwise one 1 complete turn 2 Unscrew the pilot valve stem assembly from the manifold while leaving the coil with yoke and locknut intact on stem 3 Remove pilot valve poppet from inside the pilot valve stem STOP DO
27. 5 Shutdown Integrated Sensor Board Control Panel Indicators SensO2 ONLY RED On YELLOW Off GREEN Off For SensO2 units the Red indica tor will signal extremely low purity and will be accompanied by a continuous audible alarm and a system shutdown Repairs are required Internal Status Indicators RED Off GREEN Off LX Control or Integrated Sensor Board Control Panel Indicators SensO2 ONLY RED Off YELLOW On GREEN Off A Yellow indicator signals low purity but within specification for the user Repairs are required TROUBLESHOOTING GUIDE 1 Cabinet Filters Dirty 2 Inlet Filter Dirty 3 Compressor Defective Faulty Capacitor Bad Motor Windings Worn Seals Bad Bearings Leak at fittings or tubing Leaky or Defective Relief Valve Insufficient voltage outlet Heat Exchanger a Leak at tubing or body cham ber b Inspect tubing and Heat Exchanger 5 Regulator Cracked or Leaking 6 Exhaust Muffler dirty or plugged Fan Not Operating Unit overheat ing b Faulty Fan 8 Sieve Beds defective 9 Tubing kinked or blocked 10 P C Board a Shifts at wrong pressures b Pressure transducer tubing leaks TROUBLESHOOTING GUIDE 1 Clean or Replace PROCEDURE 2 2 Replace PROCEDURE 2 3a Replace Compressor PROCE DURE 7 3b Replace Capacitor PROCE DURE 7 3c Replace Compressor PROCE DURE 7 3d Rebuild Top E
28. 7 SENSO2 ALARM INDICATOR AND SWITCH in this manual 4 Repeat 4 4 j Within 30 min the Oxygen Sensor Alarm should activate 4 k Reset Purity Switch to desired setting per chart FIGURE 3 NOTE If problems arise during test contact Invacare Technical Service for further assistance 4 1 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET 4 m 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 1 8 inch Oxygen Sensor Tubing Clamp Off Flow STEP 4 and 4 i 22 Pain SS LED2 GREEN SN lt RED ET STEP 4 j AN Indicators If Present If Present Set at 73 Set at 85 Over 85 2 GREEN Indicator Light GREEN Indicator Light O2 Purity Internal Switch Internal Switch 73 3 to 85 2 YELLOW Indicator Light RED Indicator Light Continuous Audible Alarm Sieve GARD Compressor Shutdown Below 73 3 RED Indicator Light N A Continuous Audible Alarm Sieve GARD Compressor Shutdown Factory Preset at 73 FIGURE 3 OXYGEN SENSOR TEST 65 A L A R M PROCEDURE 20 ALARM TEST 5 a Valve Coil IRC5LXO2 after S
29. A gm 2 e P prem ana a n EX 5 eae p fel P FIG URE 17 INSTALLO RING INTAKE VALVE AND VALVE KEEPER 4 Install the NEW O ring seating it firmly into the grove with your finger or blunt object NOTE Torque flapper screws to 18 inch lbs Piston Cup 5 Place oylinder sleeve over rod top with smooth edge facing up 6 Place piston cup on rod top making sure it is CEN TERED 7 Placeretainer on top of piston cup and seat retainer in rod top pocket making sure the retainer and cup lineup properly along with screw holes 8 Insert new screw into rod top and torque to 65 inch lbs 35 mozprprzZzma2Zz2 prs e T o L B U L D i LL P lt L T R U L D PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 PREVENTIVE MAINTENANCE continued Connecting Rod Eccentric Assembly 9 With gloved hand or clean cloth pre form piston cup if Necessary 10 Gently slide cylinder sleeve up and over cup to fully form it WARNING NOT lubricate or use oil on any moving parts The compressor eccentric uses a precision sealed bearing CAUTION DO NOT crimp the piston cup when you replace the sleeve If the cup is crimped it MUST be replaced 11 With bearing side FIGURE 18 of connecting rod ec centric assembly facing the center motor of the com
30. AL DAMAGE OR LIMITATION OF HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU THIS WARRANTY SHALL BE EXTENDED TO COMPLY WITH STATE PROVINCIAL LAWS AND REQUIREMENTS T1 L T E D W A R R A N T Y INVACARE CORPORATION Respiratory Products Group 699 Aero Lane Sanford Florida 32771 Customer Service Toll Free 800 333 6900 Technical Support Toll Free 800 832 4707 In Florida 407 328 5900 Form No 96 151 Part No 2002728 Rev E 10 01 Printed in USA
31. BLESHOOTING GUIDE UNIT OVERHEATS restricted Cabinet Filters Dirty or blocked 3 Fan a Leads to fan disconnected b Defective Fan c Fan installed upside down 4 Heat Exchanger a Fins dirty or plugged b Fins damaged Compressor Defective Faulty capacitor Bad motor windings Worn seals Bad bearings 6 Line Voltage excessive surge OXYGEN PURITY GOOD 1 P C Board defective Internal Status Indicators RED Off GREEN Off Control Panel Indicators RED Off YELLOW Off GREEN Off Purity Switch setting at 7396 or 8596 After 30 minutes of run time unit operates normally oxygen purity within normal range Green or Yellow panel indicator should illuminate 1 Base Exhaust Vent Plugged or 1 Place unit at least 3 inches from any wall DO NOT place unit on pile or shag carpeting that may restrict air flow Clean or replace PROCEDURE 2 3a Reconnect leads 3b Replace fan PROCEDURE 10 3c Install fan with air flow arrow pointing down PROCEDURE 10 4a Clean heat exchanger PRO CEDURE 2 4b Replace heat exchanger PRO CEDURE 8 5a Replace compressor PROCE DURE 7 5b Replace capacitor PROCE DURE 7 5c Replace compressor PROCE DURE 7 5d Replace compressor PROCE DURE 7 5e Replace compressor PROCE DURE 7 Have line voltage inspected by certified electrician A voltage regulator may be required and is obtainable from yo
32. CEDURE 6 REPLACING ADJUSTING REGULATOR Replacing Regulator FIGURE 1 Plug unit in and turn power switch ON Locate the pressure adjustment screw in center of regulator Insert a 3 32 inch Allen wrench into the pressure adjustment screw While reading pressure gauge turn pressure adjustment screw a Clockwise to increase output pressure or b Counterclockwise to decrease output pressure 10 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Pressure Regulator Product Tank Pressure Adjustment Screw 3 32 inch Adjustable Clamp Allen Wrench Sieve Beds Removed for Clarity FIGURE 2 ADJUSTING REGULATOR 42 COMPRESSOR PROCEDURE 7 REPLACING COMPRESSOR CAUTION DISCONNECT CONCENTRATOR FROM ELEC TRICAL OUTLET BEFORE SERVICING Replacing Compressor Assembly FIGURE 1 1 Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET 3 Disconnect intake and exhaust hoses from compressor assembly NOTE If resonator is aluminum can design leave it intact on compressor assembly until compressor has been removed from concentrator 4 Disconnect molex connector from compressor assembly 5 Disconnect ground green wire NOT SHOWN from back of sound box and pull wire through grommet Remove Compressor Mounting Screws TO PREVENT ELECTRICAL SHOCK ALWAYS 7 Tilt Compressor Forward and PROCEDURE 7 ASSEMBLY OR CAPACITOR Cut and remove ty wr
33. ER TO THE REPAIR REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER REPLACEMENT OR ADJUSTMENT PROCEDURES 20 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 3 Lift the cabinet straight up NOTE When required vacuum inside of the cabinet and exposed foam insulation 4 To re install cabinet reverse STEPS 2 3 Cabinet Assembly Base Assembly Mounting Screws 8 each FIGURE 1 REMOVING CABINET 21 2 gt 2 2 lt PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 PREVENTIVE MAINTENANCE CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELEC TRICAL OUTLET BEFORE SERVICING 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 The following must be performed at a minimum of one 1 year in service to assure years of ad ditional reliability Refer to TROUBLESHOOT ING GUIDE for plugged filter symptoms Only authorized or factory trained personnel should perfo
34. ETER 2 RESTRICTOR P N U M A T D G R PRESSURE REGULATOR is EXTERNAL on TEST POINT 1 IRC3LX ONLY OXYGEN CONCENTRATOR PRODUCT TANK It is INTERNAL to OUTLET P E VALVE for FLOW t IRC5LX amp RESTRICTOR IRCSLXO2 an OPTIONAL P C BOARD ee ell 1 RESTRICTOR SENSOR CROSSOVER ASSEMBLY SIEVE SIEVE BED 2 BED 5LXO2T 6LXO2 6LXO2T ONLY PE VALVE AIR INLET E cH SOLENOID PILOT 4 WAY VALVE CABINET VALVE SE GROSS PARTICLE FILTER COMPRESSOR RELIEF INLET FILTER VALVE EXHAUST MUFFLER aa RESONATOR gt n WT AIR HEAT EXCHANGER COMPRESSOR LEGEND _ ELECTRICAL and lt lt CONNECTIONS 13 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 POWER LOSS No problems Battery Free Circuit drained Plug Internal Status Indicators in cord and turn power switch ON to RED Off GREEN Off recharge Unit unplugged power switch on alarm off T R O U L E 5 O O T G POWER LOSS 1 No Power at outlet Check electrical outlet with a Internal Status Indicators tablelamp or voltmeter set on RED Off GREEN Off 150 200 VAC scale If outlet isn t Unit plugged in
35. ING 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 The Invacare 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 con centrator If the concentrator is to be reshipped by common carrier it should be packed in a new carton Additional cartons are available from Invacare The air compressor suspension system has been engineered to withstand severe motion and orientation UNPACKING FIGURE 1 1 Check for any obvious damage to the carton or its contents If damage is evident notify the carrier or Invacare 5 G H A N D L G 2 Remove all loose packing from the carton 3 Carefully remove all the components from the carton NOTE After inspection unless the Invacare Oxygen Concentrator is to be used immediately re tain carton and packing materials for use in storing until use of the concentrator is required INSPECTION 1 Examine exterior of the Invacare Oxygen Concentrator for nicks dents scratches or other damages Inspect all components STORAGE 1 Store the repackaged Invacare O
36. N 97JXXXX Alarm sequence occurs when the Valve Coil connection or P C Board Circuitry has failed Test in the following manner P E Valve Coil Test FIGURE 4 5 b With the unit running and flow set at 5 L min remove one 1 yellow wire from the Valve The P E Coil Alarm should activate within 10 seconds Refer to FIGURE 5 for Shutdown Mode L A R M PE Valve Yellow Wires FIGURE 4 P E VALVE COIL TEST ALARM MODES 3LX 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T AFTER S N 97JXXXX 3LX 5LX 5LXO2 BEFORE S N 97JXXXX INTERNAL LED FLASHES ALARM GREEN Three 3 Beeps at No Problems System Startup OK Low Pressure On Short Beep 0 Main Power Loss On Long Pause INTERNAL LED ALARM High Pressure On Low Pressure Major Leak Continuous On Continuous High Pressure No Switching All alarms have Compressor Shutdown Horn ON and IRC5LXO2 ONLY RED Panel LED ON Time out Failure Compressor Continuous FIGURE 5 ALARM MODES Continuous Continuous Continuous Continuous Continuous Continuous Continuous Pilot Valve 1 Coil Pilot Valve 2 Coil 73 Shutdown Low O2 PE Valve Coil Eprom Failure Ram Failure 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 SIEVE BED PRESSURE CHECK PROCEDURE 21 PROCEDURE 21 SIEVE
37. NS STANDARD SPECIFICATIONS Electrical Requirements Rated Current Input Sound Level Operating Altitude Ambient Temperature Range Oxygen Output Concentration Levels Maximum Outlet Pressure SensO2 Alarm Thresholds If no internal selector switch 73 operation ONLY Flow Range Power Consumption Pressure Relief Mechanism Operational at SPECIFICATIONS 120 VAC 10 132 VAC 108 VAC 60 Hz 4 0 A ALL Models 52 dB Average 3LX 53 dB Average 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T Up to 6 000 ft 1828 meters above sea level without degradation of performance From 6 000 ft 1828 meters to 13 129 ft 4000 meters below 90 efficiency 50 F 95 F 10 35 C ALL MODELS 95 6 to 87 at all flowrates Stated performance maximum achieved after 30 min of run time 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T 3LX 5 psi 0 5 psi 5 psi 0 5 psi 34 5 kPa 3 45 kPa 34 5 kPa 3 45 kPa Indicators O2 Purity Internal Switch Internal Switch Set at 73 Set at 85 Over 85 2 GREEN Indicator Light GREEN Indicator Light 73 3 to 85 2 YELLOW Indicator Light RED Indicator Light Continuous Audible Alarm Sieve GARD Compressor Shutdown Below 73 3 RED Indicator Light N A Continuous Audible Alarm Sieve GARD Compressor Shutdown Factory Preset at 73 1 2 5 Limin 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T 1 2 3 L min 3LX For flow rates less than 1 2 L min
38. ONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Remove and code the two 2 wires connected to back of hour meter H O U R M E T E R Spread retaining clips on hour meter housing that secure hour meter to control panel Remove hour meter by pushing meter through front of control panel Install new hour meter reversing STEPS 4 6 Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Sea der ie Se YS Hour Meter Retaining Clips Hour Meter Housing Hour Meter Connectors Back of Control Panel FIGURE 1 REPLACING HOUR METER 53 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 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Remove the four 4 mounting screws that secure the 4 way valve to the manifold assembly Position NEW 4 way valve onto manifold assembly and loosely install mounting screws through 4 way valve and into manifold assembly CAUTION Torque sequence and
39. P2 Remove Sensor Wiring Harness Jumper 2 ie WV UU wA Stand offs po Suh C gt Sensor Tubin P Sensor Wiring Harness Jumper Transducer Transducer 9 Pin Wiring Harness Tubing Connector To P1 8 Pin Wiring Harness um Wiring CONTROL Bottom BOARD Connector To 5 SLX 5LXO2 5LXOZT 6LXO2 6 2 FIGURE 1 REPLACING P C BOARD S 49 O A R D 5 R A N 5 F O R M E R PROCEDURE 12 TRANSFORMER PROCEDURE 12 REPLACING TRANSFORMER ASSEMBLY FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Locate the transformer assembly in the upper right corner on the back of control panel Unplug the transformer connector from the Control bottom P C Board Remove the two 2 keps nuts that secure transformer to the back of the control panel Reverse STEPS 5 6 to install NEW transformer Torque keps nuts to 13 5 1 in Ibs Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL 0 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET e oec dh om Transformer P C Board Connector Transformer Assembly ontrol Bottom P C Board Typi
40. RE 1 To accomodate the varying tolerances when replacing components an adjustable timer is used to control the shift time of the pressure equlization P E valve The integrated and telemetry boards allow for either manual or automatic microprocessor controlled adjustments of the P E shift times If manual adjustments is preferred please refer to SECTION A of this procedure Automatic adjustment is performed by the onboard microprocessor to optimize the oxygen output concentration Unattended operation is possible without the use of any additional manual adjustments 1 Tum power OFF and unplug the unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET a Ifthe intergrated or telemetry board has beeen replaced set the timing switch to position b Ifthe intergrated or telemetry board has NOT beeen replaced set the timing switch to position F 4 Replace the cabinet Plug concentrator in and turn power on set flow at 5 L min for the IRC5LXO2 IRC5LXO2T and 6 L min for the IRC6LXO2 IRC6LXO2T NOTE The flow MUST be at rated output for optimum adjustment of oxygen output for all flow ranges 5 After the FIRST valve shift the front panel Red LED will slowly blink This indicates that the unit is in the auto tune mode The microprocessor automatically adjusts the length of the valve timing up or down to provide maximum value of oxygen concentration for the unit at rated flow 6 Ifthe switch is s
41. T BEFORE SERVICING NOTE Always replace Sieve Beds in pairs to ensure that both beds are in optimum condition 1 Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET 3 Remove ty wraps and disconnect P E Valve and sieve bed tubing from top of sieve beds 4 Remove Valve assembly Refer to PROCEDURE 3 REPLACING VALVE 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T ONLY 5 Loosen adjustable clamps on sieve beds and slide clamps down below the adjustable clamp hangers 6 Lift sieve beds up and rest sieve beds on top rear of base 7 Remove plastic clamps and reinforced tubing from bottom of both sieve beds and remove sieve beds CAUTION DO NOT remove plastic caps from NEW sieve bed fittings until ready to install NEW beds Severe sieve contamination can occur if uncapped beds are exposed to air 8 Remove plastic caps from the top and bottom fittings of the NEW 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 11 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET PE Valve Assembly Valve Tubing 5LX 5LXO2 5LXO2T SLX SLXO2 5LXO2T 6LXO2 6LXO27 c 6LXOZ 6LXO2T Sieve Bed Tubing ETN PE Valve 225 Tubing Sieve Bed Adjustable Clamp 4 m Y Hangers
42. URE TAP IN KIT INSTALLATION AND BED PRESSURE CHECK in the IRC3LX IRC5LX IRC5LXO2 SERVICE MANUAL de Con ression Head 4 per Head RE p Opening under Valve Screw Flapper Head Gasket Valve lt Head Gasket Cep N gt lt Val alve p 3 Restraint Valve Plate Co i Valve Plate Compression Valve Gasket Opening under Valve Valve Screw TOP SIDE 32 BOTTOM SIDE FIGURE 13 INSTALLING THE TOP AND BOTTOM FLAPPERS AND GASKETS PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 PREVENTIVE MAINTENANCE continued Compressor Top End Rebuild 5 6 Liter For S N after 98 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DIS CONNECT CONCENTRATOR FROM ELECTRI CAL OUTLET BEFORE SERVICING NOTE This kit is designed for rebuilding the Thomas Model 2650 Series This compressor uses this rebuild kit The serial number is located on the front of the compressor If the serial number does not begin in this way this kit will not work The 5 6 Liter Thomas 2650 Series Compressor Re build Kit contains the following Two 2 Teflon Piston Cups Two 2 Aluminum Piston Sleeves Four 4 Flapper Valves Intake and Exhaust Four 4 Valve Keepers Two 2 O Ring Sleeve Two 2 Valve Plate Gaskets Eight 8 Head Mounting Screws Four 4 Valve Screws Two 2 Valve Restraints 10 Two 2 Piston Cup Retainer Screws Tools Required
43. VE 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 STEP 4 lt 22 Spade Connectors STEP 6 Heat Exchanger Typical Adjustable Mounting Detail for Manifold Clamp Assembly STEP 11 0 Adjustable UGE Clamp 4 way Valve OR STEP 16 5 13 4 Valve Manifold Lint Ty wraps Input Hose J STEP 14 STEP 9 215 Compressor NOTE NEW Heat Exchanger VY ee does NOT have fins Muffler Canister w Exhaust Hose STEP 15 Ce FIGURE 2 REPLACING 4 WAY VALVE MANIFOLD ASSEMBLY 11 Remove the two 2 mounting screws washer and bushings from manifold securing 4 way valve assembly to top of sound box 12 The 4 way valve manifold assembly can be removed from the concentrator by lifting the assembly straight up through the cutout in the sound box 13 Remove 4 way valve from manifold assembly Refer to PROCEDURE 16 REPLACING 4 WAY VALVE MANIFOLD ASSEMBLY FIGURE 1 14 Remove ty wraps from the muffler canister hoses on the bottom outside fittings of manifold assembly Refer to PROCEDURE 2 PREVENTIVE MAINTENANCE 15 Remove muffler canister w hoses from manifold 16 Loosen the adjustable clamp on output hose to bottom center port of manifold assembly 17 Remove hose from bottom center port of manifold assembly 18 Reverse STEPS
44. amage fins of heat exchanger when removing cleaning or reinstalling Remove heat exchanger Refer to PROCE DURE 8 REPLACING HEAT EXCHANGER Remove excessive dirt build up on heat exchanger fins using compressed air Reinstall heat exchanger Refer to PROCE DURE 8 REPLACING HEAT EXCHANGER Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Heat Exchanger 9 Reinstall cabinet Refer to PROCEDURE 1 Air to Clean Dirt Buildup Ty wraps FIGURE 5 CLEANING FINNED HEAT EXCHANGER Tubi From 4 way Valve Manifold Mounting Screw s Exhaust Muffler Canister Rear of Exhaust Muffler Sound Box FIGURE 4 EXHAUST MUFFLER CANISTER EXHAUST MUFFLER 23 mozio 2 2 2 MuR T E X C H A N G E R 2 2 4 ee lt 3 L T R C O M P R U L D PROCEDURE 2 PROCEDURE 2 PREVENTIVE MAINTENANCE continued CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DIS CONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING NOTE This kit is designed for rebuilding the Tho mas Model 2638 or 2618 These compressors use this rebuild kit The serial number is located on the front of the compressor If the serial number does not begin in this way this kit will not work The 3 Liter Thomas 2638 or 2618 Compressor Rebuild Kit contains the followi
45. aps Remove the four 4 mounting screws securing compressor brackets to base Tilt Compressor assembly toward front of unit and lift out NOTE If replacing capacitor only proceed to Replacing Capacitor FIGURE 2 9 If resonator is aluminum can design remove it from existing compressor and install on NEW compressor O 5 5 O R 10 Reverse STEPS 3 8 to install new compressor assembly 11 Run unit and inspect for leaks Refer to PRO CEDURE 19 LEAK TEST Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET 12 Grommet Ground Green Intake Resonator Exhaust Hose NOT SHOWN FIGURE 1 REPLACING COMPRESSOR ASSEMBLY Replacing Capacitor FIGURE 2 1 Remove compressor Refer to Replacing Com pressor Assembly FIGURE 1 Remove terminal boot on wires if present 3 Disconnect the wires to the capacitor 4 Remove ty wraps and capacitor from bottom of Com pressor Mounting Bracket 5 Install NEW capacitor by reversing STEPS 2 4 6 Ifapplicable transfer the unterminated terminals from the OLD capacitor to the NEW capacitor 7 Reconnect spade connectors from compressor to connectors on capacitor 43 8 Reinstall compressor assembly Refer to Replacing Compressor Assembly FIGURE 1 Compressor Mounting Bracket Capacitor 7 3 ca Remove Ty wraps Wires Here FIGURE 2 REPLACING CAPACITOR H E
46. begin in this way this kit will not work The 5 Liter Thomas 2639 or 2619 Compressor Rebuild Kit contains the following Two 2 Teflon Piston Rings Two 2 Aluminum Piston Sleeves Four 4 Valves Four 4 Valve Restraints Two 2 Head Gaskets Two 2 Valve Plate Gaskets Eight 8 Head Mounting Screws Four 4 Valve Screws Four 4 Connector Crossover Tube O Rings Tools Required One 1 Phillips Head TORX T 25 Driver One 1 Phillips 2 Screwdriver Attachment for Torque Wrench for Retainer Screws One 1 1 8 inch Allen Wrench attachment for Torque Wrench for Eccentric Set Screw One 1 5 32 inch Allen Wrench attachment for Torque Wrench for Rod Clamping Screw One 1 Common Flathead Screwdriver attach ment for Valve Screw Removing and Marking the Compressor Heads and Replacing Crossover Tube O Rings FIGURE 10 1 Unplug concentrator 2 Carefully remove compressor from concentra tor Refer to PROCEDURE 7 REPLACING COMPRESSOR ASSEMBLY OR CAPACITOR Use the TORX T 25 torque wrench to remove the eight 8 screws that secure the head assembly and valve plates to the compressor 4 Mark the heads and valve plates to ensure proper reinstallation and set valve plates aside 5 Grasp both head assemblies and gently pull them apart 6 Remove the crossover tubes from the head as sembly NOTE Replace all four 4 rings 7 Use a small flat screwdriver to get
47. cal 2 Keps Nut Transformer Connector FIGURE 1 REPLACING TRANSFORMER ASSEMBLY 50 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 Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Remove and code the four 4 wires from back of existing On Off switch Compress retaining grips on back of existing On Off switch and push switch out through front of panel CAUTION DO NOT install the On Off switch upside down Universal OFF symbol should at bottom and O N O S W Universal symbol should at the top Possible damage to the concentrator may result if not properly installed NOTE Ensure proper orientation of the On Off switch and wiring connections before installation See Detail A and Detail B below 6 Reverse STEPS 4 5 to secure NEW On Off switch 7 Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL 8 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Control Panel Detail A Front of On Off Switch Universal ON and OFF On Off Switch Symbols See Detail A and Detail B for On Off i Switch proper Switch installation Brown Jumper Wire Fr
48. ch Jumper wire har ness from On Off switch to circuit breaker does not have to be removed 11 Remove control panel 12 Reverse STEPS 3 10 to re install control panel 13 Run unit and check for leaks at transducer tubing on product tank cap Refer to PROCEDURE 19 LEAK TEST 14 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET On Off Switch Circuit Breaker TNS 8 Amp Upper Mounting Screws 2 ea 1 per side Jumper Wire On Off Switch to Circuit Breaker Pp Control Panel Lower front of gt Control Panel 9 Pin Connector S Z M NP 8 Pin Connector 1 8 1 4 I D Regulator I D Transducer Lower Mounting Screws Tubing To Product Tubing 2 ea 1 per side Tank l da FIGURE 1 REMOVING CONTROL PANEL 45 T R O L L PROCEDURE 10 FAN PROCEDURE 10 REPLACING COOLING FAN FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Remove compressor assembly Refer to PROCEDURE 7 REPLACING COMPRESSOR ASSEM BLY OR CAPACITOR 5 Remove heat exchanger Refer to PROCEDURE 8 REPLACING HEAT EXCHANGER m oco qe NOTE Before removing the four 4 mounting clips note their
49. d sound the audible alarm immediately or within 30 seconds NOTE With the unit unplugged and inoperable for a short period of time the Battery Free circuit will be drained If power failure alarm does not sound with unit unplugged and power switch on the Battery Free circuit is drained It will recharge when unit is plugged in and switched on 2 LOW PRESSURE TEST There are two 2 seperate failure modes for Low Pressure Low product tank pressure pressure in tank drops below a preset value typically 7 p s i b Failure to reach the set point pressure within a prescribed time limit or Timeout Failure Test each in the following manner Low Pressure Test FIGURE 1 c1 With unit running set flow at maximum rating When the main valve switches pull the stem on the compressor relief valve out as far as it will go and hold it The low pressure alarm should activate within 30 seconds Refer to FIGURE 5 for Shutdown Mode c2 With unit running set flow at maximum rating Remove the P C board tubing tywrap from the top of the product tank The low pressure alarm should activate within 30 seconds Refer to FIGURE 5 for Shutdown Mode Replace tubing and tywrap Time Out Test FIGURE 1 d 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 fail
50. e Slotted Poppet Coil Connectors Intact Valve Body L Valve Body Reference _ Reference UM Tapered End Manifold anifold O Ring pening FIGURE 4 REMOVING INSTALLING PILOT VALVE POPPETS AND O RINGS 10 Use the flat blade screwdriver and tighten pilot valve stem clockwise until snug Reference Torque to 25 inch Ibs 5 inch 165 11 Install NEW label onto pilot valve coil yoke 12 Position pilot valve coil with yoke at an approximate 60 angle to the left as viewed from the front of valve to ensure spade connectors are not pulled or tensioned after reinstallation 13 Use the flat blade screwdriver and hold the pilot valve stem in place 14 Tighten locknut clockwise with the 9 16 inch wrench until snug to secure the stem and coil with yoke DO NOT OVERTIGHTEN Reference Torque to 20 inch Ibs 3 inch Ibs CAUTION DO NOT overtighten locknut when installing it onto pilot valve stem Damage to the plastic manifold may occur 15 Repeat the STEPS 1 through 14 for other pilot valve 16 Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL CAUTION Ensure that hoses behind control panel DO NOT contact cooling fan after control panel reinstal lation 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 difficultie
51. ections on top of sieve beds IRC 5LX IRC5LXO2 FIGURE 2 d Hose fittings at product tank cap and check valves FIGURE 2 e The front and rear fittings on heat exchanger FIGURE 3 6 Replace any tubing that appears cracked worn etc 7 Re install cabinet Refer to PROCEDURE 1 REMOVING CABINET 8 See SPECIFICATION section of this manual for Concentration Levels If low concentrations are observed refer to the TROUBLESHOOT ING GUIDE in this manual LEAK TEST Sieve Bed Hoses to 4 way Valve STEP 5 a Hose Fitting on Bottom Center Port of 4 way Valve STEP5 a FIGURE 1 4 WAY VALVE HOSES Hose Connections to Top Fittings of Sieve Valve Fittings Beds STEP 5 b 5LX 5LXO2 6LXO2 ONLY STEP 5 All Hoses to Product Tank Cap STEP 5 d Hose Connections to Bottom Fittings of Sieve Beds STEP 5 b FIGURE 2 SIEVE BED AND PRODUCT TANK HOSES Heat Exchanger Typical Hose Connections STEP 5 d NOTE NEW heat exchanger does NOT have fins FIGURE 3 HEAT EXCHANGER HOSES ALARM TEST PROCEDURE 20 PROCEDURE 20 ALARM AND SENSOR TEST CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING CAUTION CHECK ALARMS PERIODICALLY FOR PROPER FUNCTION To check each alarm perform the following 1 POWER LOSS With the unit running remove the line cord from power source The power loss alarm mode shoul
52. embly R E V M R E V vs 00 Dar PROCEDURE 2 PREVENTIVE MAINTENANCE PROCEDURE 2 PREVENTIVE MAINTENANCE continued Valve Plate Assembly Valve Keeper Valve Restraint Valve Flapper Intake amp Exhaust Screw Valve Flapper Item Description Connecting Rod Eccentric amp Bearing Assembly Valve Pressure Relief Teflon Piston Cup Piston Sleeve Valve Plate O Ring Sleeve 19 Fan Black HGURE 15 COMPRESSOR EXPLODED VIEW 34 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 PREVENTIVE MAINTENANCE continued Connecting Rod Eccentric Assembly 8 Rotate shaft to align the eccentric s set screw with the access hole in the bottom of the com pressor housing 9 Insert the 5 32 inch allen wrench into the access hole in the bottom of the compressor housing 10 Loosen the setscrew 1 4 turn 11 Rotate connecting rod to top dead center 180 and slide the connecting rod eccentric assem bly off the shaft 12 Secure the rod assembly in a fixture 13 Remove the sleeve from the connecting rod and discard Piston Cup 14 Remove the screw discard from the cup re tainer retain for reassembly 15 Remove the piston cup discard and wipe de bris from the top of the connecting rod with a clean damp cloth O ring Intake Va
53. es leaks should stop If not contact In vacare Technical Service at the number on back page of this instruction sheet 27 ule gt 1 4 2 so 3 L T R E U L D 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 IRCSLX IRC5LX IRC5LXO2 SER VICE MANUAL Compression Opening under Valve Valve Plate Gasket Mounting i Phillips Head Screws 6 per Head Valve Plate 2 Valve N Restraint Valve Screw Valve Gasket Keeper Compression Opening under lt gt _ Valve Flapper Keeper Restraint NFS Valve Plate Valve Plate Gasket FIGURE 9 INSTALLING THE TOP AND BOTTOM FLAPPERS AND GASKETS eo 28 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 PREVENTIVE MAINTENANCE continued CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Compressor Top End Rebuild 5 Liter NOTE This kit is designed for rebuilding the Tho mas Model 2639 or 2619 These compressors use this rebuild kit The serial number is located on the front of the compressor If the serial number does not
54. ests on the locator ribs of the compressor hous ing and over the piston Aluminum Sleeve Eccentric Set Piston Head Screw Teflon Ring Eccentric Eccentric Bearing Camshaft After Piston is upright Connector Rod Centered and Eccentric is Screw reinstalled into Compressor install Aluminum Sleeve onto Piston i Connecting Connecting Compressor Housing Rod Eccentric Cut away for Clarity Bearing Bore d Connecting Rod Screw Spread o CONNECTING ROD DETAIL 032 ECCENTRIC DETAIL FIGURE 8 INSTALLING NEW PISTON 26 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 PREVENTIVE MAINTENANCE continued Alignment of the Piston FIGURE 8 1 Hold sleeve down with one hand and slowly turn eccentric with the other 2 As the piston travels up and down the connecting rod will rock from front to back in normal opera tion If connecting rod rocks side to side the rod is mis aligned on the eccentric bearing 4 f this is evident loosen set screw and repeat STEPS 3 8 for INSTALLING THE PISTON 5 If connecting rod cannot be properly aligned con tact Invacare Technical Service 6 Twist the aluminum sleeve back up onto the pis ton until sleeve is approximately centered on the teflon ring of the piston 7 With the aluminum sleeve firmly seated onto lo cator ribs set the individual valve plate from that side of the compressor onto the aluminum sleeve and pos
55. et to position the auto tune will take a minimum of three 3 hours to complete b If the switch is set to position F the auto tune will take a minimum of 45 minutes to complete If the front panel Red LED does NOT blink or the unit alarms immediately check the timimg switch position When the auto tune procedure is completed the alarm will sound every 3 4 seconds and the front panel Red LED will change from slowly blinking to rapid flashing Count the number of Red LED flashes between the pauses This indicates the P E timing value the microprocessor has determined as optimum for maximum 60 TIMING PROCEDURE 18 10 oxygen production This Red LED count corresponds to the same numbers on the timing switch in the manual mode Record this number If the timing switch was in position 0 at the start turn the unit OFF and then BACK on The unit will now function normally The timimg value is stored in the microprocessors memory and is recalled everytime the unit is turned back ON If the timing switch was in position at the start remove the cabinet and change the position to 0 The alarm should stop sounding and the Red LED will stop flashing The unit will now function normally The timimg value is stored in the microprocessors memory and is recalled everytime the unit is turned back ON 11 The timing switch MUST be in position O for the automatic control of the P E valve time by the unit s microprocessor for maxim
56. exists as to whether the product is properly grounded S A F E T Y 5 U M M A R Y B This product is for use on a normal 120 V circuit and has a grounding plug that looks like the plug illustrated in sketch A shown at the bottom of the page A temporary adapter which looks like the adaptor illustrated in sketches B and C may be used to connect this plug to a 2 pole outlet as shown in sketch C if a properly grounded outlet is not available The temporary adaptor should be used only until a properly grounded outlet sketch D can be installed by a qualified electrician The green colored rigid ear lug and the like extending from the adapter must be connected to a permanent ground such as properly grounded outlet box cover Whenever the adapter is used it must be held in place by the screw Adapter 1 1 Metal Screw _ rounded N Grounding Tab for Grounded Pin Grounding Outlet Box Screw A B C D FEATURES FEATURES Power Indicator Oxygen Outlet Power Switch Circuit Breaker U R E 5 Elapsed Time Meter Cabinet Filter 2 ea FEATURES 3LX 5LX is ie SensO2 Status Indicator Lights BLXO2 9 E 6LXO2 and 6LXO2T ONLY Oxygen Outlet Flowmeter 0 bom Power Switch Elapsed Time Meter Cabinet Filter 2 Z 2 ea Z 2 FEATURES 5LXO2 5LXO2T 6LXO2 6LXO2T 5 O N 5 SPECIFICATIO
57. he power switch energizes the compressor motor hour meter cooling fan and the printed circuit P C board Room air enters the compressor via the cabinet filter compressor inlet filter and sound muffler The air is compressed by the wobble pistons in the compressor to a pressure of 20 PSI 137 72 kPa BEFORE Serial No 97K or 21 PSI 144 79 kPa AFTER Serial No 97K As increased pressure creates increased temperature a heat exchanger is utilized to lower the tempera ture by 20 F 6 79 C before the air enters the 4 way valve It is then channeled to a sieve bed containing the adsorption material A restrictor 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 with the balance entering a storage tank The nitrogen removed is exhausted back from the bed through the four 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 5 PSI 34 4 kPa enters an accurate flow measuring device flows through a bacterial filter a check valve and out to the patient The electrical activation of the 4 way valve is accomplished every 8 to 21 seconds by the pressure sensor and P C board electronics when the pre
58. head and the valve plate gasket into the underside of the valve plate 6 After the other piston has been rebuilt install the valve plates over the aluminum sleeves and rein stall the head assembly onto the valve plates not ing the markings made when the head assembly and valve plates were removed nt ea 2 gt EE 5 L T R E U L D SE e PROCEDURE 2 NOTE Ensure that the gaskets are not pinched or out of position when reinstalling the valve plates and the head assembly Doing this will prevent leaks and low system pressures 7 Tighten the screws on the heads in a criss cross manner until snug DO NOT tighten completely 8 Use a torque wrench with the TORX T 25 drive and torque each head screw to 40 in 16 criss cross manner 9 Reinstall the compressor Refer to PROCEDURE 7 REPLACING COMPRESSOR ASSEMBLY OR CAPACITOR PREVENTIVE MAINTENANCE 10 Run unit and check for leaks around compres 11 12 sor hoses Refer to PROCEDURE 19 LEAK TEST If crossover tube s leak gently rotate the tube s approximately 1 4 turn Once O ring s seat themselves leaks should stop If not contact In vacare Technical Service at the number on back page of this Owner s Manual Take pressure readings to ensure proper system pressures Refer to PROCEDURE 21 SIEVE BED PRESS
59. imum Performance 9 PROCEDURE 8 REPLACING HEAT SHIPPING AND HANDLING INSTRUCTIONS 10 EXCHANGER usos tiui INSTALLATION SEQUENCE OF OPERATION 11 SENSO2 OXYGEN SENSOR TECHNOLOGY CERAMIC ZIRCONIA SENSOR 12 Technical Description 12 Operating Sequence 12 Pneumatic Diagram 13 TROUBLESHOOTING GUIDE 14 REPAIR REPLACEMENT GUIDE 21 PROCEDURE 1 REMOVING CABINET 21 PROCEDURE 2 PREVENTIVE 22 Cabinet Filters 22 Inlet Filter 22 22 Exhaust Canister Exhaust Muffler 23 Cleaning Finned Heat Exchanger 23 Compressor Top End Rebuild 3 Liter Rebuilding Thomas Model 2638 or Compressor Top End Rebuild 5 and 6 Liter Rebuilding Thomas Model 2639 or o m Y 29 Rebuilding Thomas Model 2650 33 Preventive Maintenance Record 37 PROCEDURE 3 REPLACING VALVE 5LX 6LX 5LXO2 6LXO2 38 PROCEDURE 4 REPLACING SIEVE BEDS 39
60. ition it until the six 6 holes in the valve plate line up with the six 6 holes in the top of the compressor housing This aligns the piston assem bly 8 Securely tighten the connecting rod screw against the flat spot on the nib camshaft FIGURE 3 CAUTION Ensure that eccentric set screw is aligned with the flat spot on the cam shaft Failure to do so may result in damage to compressor possible injury 9 Reinstall the fan blade securely over the nib in front of the eccentric FIGURE 3 10 Temporarily reinstall the valve plate for the piston just replaced to simplify installation of the other piston 11 Begin at FIGURE 2 for installation of the new pis ton on the opposite side of the compressor Replacing the Top and Bottom Valves and Gaskets FIGURE 9 NOTE Ensure that when installing the new valves they are facing in the same direction that the old ones were in when removed from each plate and that they completely cover the compression opening in the valve plate Ensure that no dirt or grease contacts them as this may inhibit their ability to open and close properly and severely reduce the compressor s ability to ad equately compress air CAUTION Because of tooling of the valve keepers ensure that the word UP on the valve keeper is facing you when installing the valve keepers 1 Replace the top and bottom valves by doing one side of the valve plate at a time 2 Use the small common fla
61. lier IMMEDIATELY GREEN LIGHT with YELLOW LIGHT FLASHING Oxygen sensor malfunctioning you may continue to use the concentrator Call Supplier IMMEDI ATELY NOTE If your Invacare Concentrator SensO P C board is equipped with an alarm threshold switch then you can set the level at which the purity indicators will activate The switch is located on the sensor board near the top of the unit See PURITY INDICATOR SWITCH graphic FIGURE 2 Refer to Alarm Thresholds in the SPECIFICA TION section of this manual NOTE Indicator lights are visible only when lit 58 Oxygen Purity Auto Shut Down e Use Backup Call Supplier 4 YELLOW Below Normal e e FIGURE 1 INDICATOR LIGHTS Normal 4 GREEN Purity Indicator Switch If Installed FIGURE 2 1 Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Locate purity switch on upper left corner of Sensor Board Set the indicator switch to either 73 or 85 Switch is factory preset at 73 Refer to Alarm Thresh olds in the SPECIFICATION section of this manual 3 Plug in power cord Run unit and check the indicator lights for operation in accordance with specifications set forth in this PROCEDURE If problems exist call Invacare Technical Support Refer to Operating Sequence in the INSTALLA TION AND SEQUENCE OF OPERATION portion of this manual If operation is within specification reinstall cabinet
62. ll below a preset value typically 73 3 85 2 This failure indicates a catastrophic failure of any component mechanical or electrical This test is performed in a series of STEPS Test in the following manner Oxygen Sensor Test FIGURE 3 Ensure that Purity Switch SW1 is set at 73 Refer to PROCEDURE 17 SENSO2 ALARM INDICATOR AND SWITCH in this manual 4 a Turn unit ON Set output flow at 5 L min BLXO2 or 6 L min 6LXO2 4 b Monitor the O2 level 4 c With the O2 level greater than 85 after 5 minutes the GREEN panel LED will illuminate 4 d Slowly adjust flow beyond maximum rated flow until you can achieve a concentration level greater than 75 but less than 84 Within 30 min the YELLOW panel LED indicator will illuminate and the unit will continue to run 4 e CAUTION Use not to cut oxygen sensor tubing when clamping the oxygen sensor tubing Clamp off the 1 8 inch oxygen sensor tubing between the oxygen sensor and the tee in the supply line from the product tank 64 ALARM TEST PROCEDURE 20 4 f Within 30 min the Oxygen Sensor Alarm should activate NOTE 85 Setting is NOT available on units without switch 4 g Repeat STEPS 4 a and 4 c with SW1 set at 85 Refer to PROCEDURE 17 SENSO2 ALARM INDICATOR AND SWITCH in this manual 4 h Unit will again climb to an O2 level greater than 85 after 5 minutes and the GREEN control panel LED will illuminate Refer to PROCEDURE 1
63. lockage 13b Replace P E Valve PROCE DURE 3 T R O U L E 5 O O T G 14 Inspect Board Restrictor 14 Replace Board Unit may tubing for kinks or tears need retiming after board replacement PROCEDURE 11 FLUCTUATING FLOW 1 Regulator Flowmeter a Incorrectly set regulator 1a Check pressure at oxygen outlet Adjust Regulator PROCEDURE 6 b Flowmeter malfunction 1b If flow is still unstable check for leaks starting at the compressor outlet fitting through all pneumatic connections If no leaks are found and flow is still fluctuating replace the regulator PROCEDURE 6 If pressure at test point is within spec 5 p s i 0 2 max 34 4 kPa 6 89 replace flowmeter PROCEDURE 14 Bacteria Filter 2a If low flow conditions persists a Dirty or Plugged replace bacteria filter UNIT EXCESSIVELY LOUD 1 Pneumatic Exhaust a Muffler cracked damaged or 1a Replace PROCEDURE 2 missing b Muffler tubing disconnected or 1b Reconnect or replace tubing damaged 2 Intake Resonator a Damaged or missing 2a Install new resonator Tubing disconnected or dam 2b Reconnect tubing or replace aged 3 Inlet Filter missing 3 Replace inlet filter 4 Compressor 4 Replace Compressor Internal damage PROCEDURE 7 NOTE REFER TO THE REPAIR REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER REPLACEMENT OR ADJUSTMENT PROCEDURES 18 TROUBLESHOOTING GUIDE TROU
64. lve and Valve Keeper 16 Remove the O ring intake valve and valve keeper from the bottom of the valve plate Dis card all 17 Clean the bottom of the valve plate with a clean soft cloth Exhaust Flapper Valve Valve Restraint and Valve Keeper 18 Remove the exhaust flapper valve valve restraint and valve keeper from the top of the valve plate Discard all 19 Clean the top of the plate with a clean soft cloth Gasket 20 Remove the OLD gasket from the top of the valve plate and discard 21 Clean the valve plate with a clean soft cloth REBUILDING COMPRESSOR REFER TO FIGURE 15 NOTE Before reassembly wipe any residue from all components with a clean soft cloth Gasket 1 Install NEW gasket seating the gasket firmly in the groove at the top of the valve plate with your finger or blunt object CAUTION Make sure that the O ring is NOT twisted when seated in the groove of the top of the valve plate Exhaust Flapper Valve Valve Restraint and Valve Keeper 2 Install the NEW exhaust flapper valve valve restraint and valve keeper to the top of the valve plate FIGURE 16 NOTE Torque flapper screws to 18 inch Ibs VALVE RESTRAINT FIG URE 16 INSTALL THE NEW EXHAUST FLAPPER VALVE VALVE RESIRAINT AND VALVE KEEPER O ring Intake Valve and Valve Keeper Install the NEW valve keeper on top of the NEW intake flapper so that the word UP is visible FIGURE 17 VALVE FLAPPER J
65. minum sleeve torque the screws to 30 in Ibs CAUTION DO NOT force aluminum sleeve onto piston The Teflon ring may become damaged and render the piston unusable Td Phillips Head One 1 Piston lt gt Screws Rebuild ONLY Q per Head SHOWN for Clarity Aluminum Sleeve Valve Plate Installing Top and Bottom Flappers FIGURE 13 NOTE Ensure that new valves are facing in the same direction that the old ones when install ing and that they completely cover the compres sion opening in the valve plate Make sure that no dirt or grease contacts the valves or valve plates as this may inhibit their ability to open and close properly and severely reduce the compressor s ability to adequately compress the air Replace the top and bottom valves by doing one side of the valve plate at a time CAUTION Because of tooling of the valve keepers ensure that the word UP on the valve keeper is fac ing you when installing the valve keepers 31 Teflon Ring Piston Mounting Position for Aluminum Sleeve 1 Use the small common flathead screwdriver to remove the valve screw securing the valve restraint valve keeper and valve to the top of the valve plate 2 Remove the valve screw valve keeper and valve from the bottom side of the valve plate 3 Reverse STEPS 1 2 to install the NEW top and bottom valves onto the valve plate 4 Torque valve screws to 12 in Ibs Install the head gasket in the compressor
66. nals Before installing any P C boards ensure that all insulators are in place 4 Remove Sensor Wiring Harness Jumper P2 from P C board s to be replaced 5 Disconnect the following CAUTION DO NOT remove sensor tubing from P C Board Remove from tee fitting ONLY Damage to sensor assembly could occur 3LX 5LX and 5LXO2 before S N97JXXXX SensO2 Board 5LXO2 ONLY a Sensor tubing from T fitting behind control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Control Bottom P C Board 3LX 5LX 5LXO2 a Wiring Harness from 9 Pin Wiring Harness Connector P1 b 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 Hamess Connector P1 b Wiring Harness from 8 Pin Wiring Harness Connector P5 c Transformer connector P3 d Pressure transducer tubing from product tank e Oxygen Sensor tubing from T fitting behind control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL f Wiring Harness from 4 pin wiring harness connector P6 BLXO2T 6LXO2T Telemetry Unit ONLY Remote Display Board a Sensor wiring harness if not disconnected in STEP 1 6 Pinch end of each stand off with needle nose pliers and remove the P C Board s 48 P C BOARD PROCEDURE 11 PROCEDURE 11 continued REPLACING
67. nd of Compres sor PROCEDURE 2 3e Replace Compressor PROCE DURE 7 3f Replace Fittings or Tubing 3g Replace Relief Valve 3h DO NOT use extension cords 4a Replace or Retighten 4b Replace or retighten tubing Replace Heat Exchanger PRO CEDURE 8 5 Replace PROCEDURE 6 6 Replace PROCEDURE 2 7a Leads to fan Disconnected Reconnect PROCEDURE 10 7b Replace PROCEDURE 10 8 Replace PROCEDURE 4 9 Repair or replace 10a Check pressure at product tank Pressure should rise to 20 p s i at shift point If not replace P C Board PROCEDURE 21 10b Inspect tubing at transducer and at product tank Replace tubing ONLY if damage is evident PROCEDURE 9 NOTE REFER TO THE REPAIR REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER REPLACEMENT OR ADJUSTMENT PROCEDURES 17 R O U L E 5 O O T G TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE LOW CONCENTRATION 11 Flowmeter Continued a Flowmeter opened beyond 11a Return flow to maximum setting maximum flow rate b Cracked or broken Fitting 11b Replace fitting c Input tubing leaking or loose 11 Repair or replace 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 b Restrictor B
68. ng Two 2 Connecting Piston Rod Assemblies Two 2 Connecting Rod Screws Two 2 Aluminum Piston Sleeves Four 4 Valves 2 Valve Restraints Two 2 Head Gaskets Two 2 Valve Plate Gasket Two 2 Connecting Rod Screw Twelve 12 Head Mounting Screws 10 Four 4 Valve Screws 11 Four 4 Connector Crossover Tube O Rings 12 Hernon 846 Lubricant 13 Hernon 423 Threadlocker pae gm Tools Required One 1 1 8 5 32 inch Allen Wrench attachment Inch Pound Scale Torque Wrench One 1 Common Flathead Screwdriver One 1 Small Common Flathead Screwdriver One 1 Phillips Head Screwdriver Removing and Marking the Compressor Heads and Replacing Crossover Tube O Rings FIGURE 6 1 Unplug concentrator 2 Carefully remove compressor from concentrator Refer to PROCEDURE 7 REPLACING COMPRESSOR ASSEMBLY OR CAPACITOR 3 Usethe Phillips screwdriver to remove the twelve 12 screws that secure the head assembly and valve plates to the compressor 4 Markthe heads and valve plates to ensure proper reinstallation and set valve plates aside PREVENTIVE MAINTENANCE 5 Grasp both head assemblies and gently pull them apart 6 Remove the crossover tubes from the head as sembly NOTE Replace all four 4 O rings 7 Use a small flat screwdriver to get between the edge of the O rings and grooves in the cross over tubes or roll the O rings out of the
69. om Circuit Breaker Detail B Back of ON OFF Switch Switch Wiring Orientation FIGURE 1 REPLACING ON OFF SWITCH 51 PROCEDURE 14 FLOWMETER PROCEDURE 14 REPLACING FLOWMETER FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Remove control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Remove tygon tubing from the top and bottom fittings on back of flowmeter L O W M E T E R Remove palnuts from rear of flowmeter Remove flowmeter from front of control panel Install new flowmeter reversing STEPS 4 5 Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Run unit and check for leaks where tygon tubing engages flowmeter fittings Refer to PROCEDURE 19 LEAK TEST 10 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET O 0 co ies E Se Palnuts Flowmeter 2 ay 2 uU 2 4 Jg tr Y F ts d gt f 7 a Cr 4 rA 27 7 55 GP Z Flowmeter Fittings Back of Flowmeter Control Panel FIGURE 1 REPLACING FLOWMETER 52 HOUR METER PROCEDURE 15 PROCEDURE 15 REPLACING HOUR METER FIGURE 1 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT C
70. ompressor not operating HIGH PRESSURE Internal Status Indicators RED On GREEN Off LX Control Board RED One 1 Flash GREEN Two 2 Flashes Integrated Sensor Board LX SMT Board Control Panel Indicators RED On YELLOW Off GREEN Off Unit plugged in power switch on continuous alarm Compressor shut down Tripped Board Damaged b Loose damaged connector Transformer Assembly a Faulty b Connector loose or discon nected c Faulty wiring Board Faulty Board a Malfunction b Disconnected Wire c Shifting Valve at Pressures greater than 25 p s i 4 way Valve a Not Shifting NOTE Breaker may trip to safe guard concentrator during a power surge 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 2 hours If breaker trips again there is an internal problem Contact INVACARE TECHNICAL SERVICE 5a Replace PROCEDURE 11 5b Repair or replace connector 1a Replace PROCEDURE 12 1b Reattach connector 1c Replace Transformer Assembly PROCEDURE 12 Replace P C Board PROCE DURE 11 For 5LX or 6LX Unit may require retiming after P C Board replacement PRO CEDURE 18 1a Set flow to max l min for concen trator Check voltage across Pilot Valve 1 on 200 volt scale If meter reads O volts when
71. onclude that the patient is receiving an insufficient amount of oxygen the supplier and or physician should be contacted immediately No adjust ments should be made to the flowrate unless prescribed by a physician A product should NEVER be left unattended when plugged in 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 S A F E T Y 5 U M M A R Y SAFETY SUMMARY SAFETY SUMMARY Continued GROUNDING INSTRUCTIONS This product should be grounded the event of 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 DANGER IMPROPER USE OF THE GROUNDING PLUG CAN RESULT IN A RISK OF ELECTRICAL SHOCK If repair or replacement of the cord or plug is necessary do not connect the grounding wire to either flat blade terminal The wire with insulation having an outer surface that is green with or without yellow stripes is the grounding wire Check with a qualified electrician or serviceman if the grounding instructions are not completely understood or if doubt
72. op of piston N Remove the aluminum sleeve from the pistonto Repeat STEPS 1 4 for other piston be rebuilt T E Mounting Screws 4 E Head Assembly One 1 Piston Head Gasket Rebuild ONLY Valve Plate SHOWN for Clarity Valve Plate Aluminum Sleeve Gasket Piston EM Phillips Head Teflon HingHead 02 Screws 4 per Piston Valve Plate Head Eccentric Screw Access Eccentric Screw Piston Access Hole for this Piston Holes are opposite side of Compressor Piston Set Screw Access Holes Connecting Rod Screw Access Hole for this Piston FIGURE 11 REMOVING THE PISTON HEAD AND TEFLON RING 5 L T R O M P R U L D 30 PREVENTIVE MAINTENANCE PROCEDURE 2 PROCEDURE 2 PREVENTIVE MAINTENANCE continued Installing the New Teflon Rings and Piston Heads FIGURE 12 CAUTION Piston head MUST be rotated 90 when rein stalling This ensures proper wear on the pis ton head and will prolong it s life 1 Place the aluminum sleeve onto its mounting position on the compressor housing 2 Rest the new Teflon ring on the aluminum sleeve and center the ring with the piston head 3 Install the piston head over the piston ring and into the aluminum sleeve 4 Install and tighten the phillips head screws until snug to align the Teflon ring with the aluminum sleeve 5 the Teflon ring is centered properly with the piston head and alu
73. posite sieve bed 6 If pressure reading is 20 PSIG 3 BEFORE 971 and 21 PSIG 3 AFTER 971 when both valve shifts are made proceed to STEP 9 7 f pressure in the concentrator does not fall into FIGURE 4 AFTER TESTING the specifications listed above refer to the TROUBLESHOOTING section in this manual 8 Turn the concentrator OFF 1 4 inch Clamp Unclamp the pressure gauge and remove it from the T fitting 1 4 inch Clamp STEP 1 Pressure Restrictor Gauge SHOWN for a Clarity EN Adjustable Clamp Product Tank ME FIGURE 3 PRESSURE TESTING 68 NOTES 69 NOTES 70 LIMITED WARRANTY LIMITED WARRANTY NOTE THE WARRANTY BELOW HAS BEEN DRAFTED TO COMPLY WITH FEDERAL LAW APPLICABLE TO PRODUCTS MANUFACTURED AFTER JULY 4 1975 This warranty is extended only to original purchaser of our products This warranty gives you specific legal rights and you may also have other legal rights which may vary from state to state Invacare Corporation warrants its Oxygen Concentrators to be free from defects in materials and workmanship from date of purchase ALL Careguard 3LX Models for a period of three 3 years ALL Invacare 5LX 5LXO2 and 6LXO2 Oxygen Concentrator Models for a period of five 5 years The 4 way valve body carries a lifetime warranty from date of purchase DO NOT OPEN OR ATTEMPT TO SERVICE VALVE BODY This will void any and all warranty applicable
74. pressor slide the assembly onto the shaft bringing it flush to the motor bearing NOTE Make sure the eccentric setscrew is positioned over the flat of the shaft 12 Tighten setscrew to 100 inch lbs 13 Hold the sleeve down by the housing with one 1 hand and slowly rotate the eccentric with the other hand to ensure all the components are lined up properly Cylinder Sleeve are o Piston Cup NOTE As the piston travels up and down it will also rock from side to side This is a feature of the WOB L Piston HGURE 18 CONNEC TING ROD ECC ENTRIC ASSEMBLY Fan 14 Reinstall the fan onto the shaft in original orien tation Valve Plate 15 With the sleeve located and firmly seated on the housing replace the valve plate in the same manner as it was FIGURE 18 NOTE Make sure the top edge of the sleeve locates in the O ring groove in the bottom of the valve plate CAUTION Make sure that the O ring is NOT twisted when seated in the groove of the bottom of the valve plate Compressor Heads 16 Place the heads on top of the valve plates 17 Tighten the head screws in a criss cross pattern to 40 inch lbs Compressor WARNING To avoid personal injury or property damage rotate the fan by hand prior to connecting the unit to a power source Check for suction at the air inlet by placing your finger over the port as you rotate the fan You should feel a slight suc tion with each rotation of the fan
75. rews x Compressor Output Hose Ur To Heat Exchanger from 4 g id J Compressor Ty wraps Valve Manifold Input Hose A 4 From Heat Exchanger to 4 way Valve Manifold Heat Exchanger NOTE Fins not present on all models FIGURE 1 REPLACING COOLING FAN 47 O A R D 5 PROCEDURE 11 BOARD REPLACEMENT PROCEDURE 11 REPLACING BOARD S 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 WARNING ONLY QUALIFIED SERVICE TECHNICIANS SHOULD MAKE ANY CHANGES TO THIS EQUIPMENT These are precautions that should be followed to prevent damage to the P boards Before handling any P C boards you need to be properly grounded to prevent static damage to the components of the board A Static Cuff must be worn and properly grounded using an alliga tor clip Electrical conduit or a water pipe is normally sufficient when a known good ground is not available Care should be taken to ensure that alligator clip contact with bare metal surface When removing quick disconnects DO NOT pull on wire itself as damage to the connector or solder joint may occur Hold down the P C board with one hand and use an upward force with a slight rocking motion to remove the termi
76. rm preventive maintenance on the concen trator Power should be disconnected before be ginning preventive maintenance on the Invacare concentrator Cabinet Filters FIGURE 1 1 Clean or replace gross particle cabinet filters on both side of the cabinet FIGURE 1 CABINET FILTERS Inlet Filter FIGURE 2 NOTE Perform this procedure as needed depending upon the environment the concen trator is used in Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET 3 Unscrew the inlet filter located on the top left of the sound box counterclockwise 4 Discard existing inlet filter and replace with a NEW inlet filter 5 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Inlet Filter Sound Box FIGURE 2 INLET FILTER Bacteria Filter FIGURE 3 1 Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET NOTE The bacteria filter is accessible without removing the control panel but if it becomes necessary to loosen the control panel to access the bacteria filter refer to PROCEDURE 9 REMOVING CONTROL PANEL 3 Remove FRONT of bacteria filter from the tygon tubing extending to the top fitting of the flowme ter 4 Remove REAR of bacteria filter from the tygon tubing extending to back of in line check valve 5 Install NEW bacteria filter by reversing STEPS 3 4 6 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET In line Check
77. rupted causing system shutdown 7 Install new regulator onto product tank by reversing STEP 5 8 Torque mounting screws to 5 1 inch Ibs 9 Re install product tank and secure with the adjustable clamp 10 Adjust regulator pressure if necessary Refer to ADJUSTING REGULATOR FIGURE 2 in this PROCEDURE 11 Run unit and check for leaks Refer to PROCEDURE 19 LEAK TEST 12 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Mounting Screws Rings To Bottom of Regulator Regulator Flow Arrow Adjustable Clamp J Product Tank N Sieve Beds for Reference only y FIGURE 1 REPLACING REGULATOR 41 R E G U L A T O R 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 If difficulty is encountered in adjusting or maintaining 5 p s i 0 5 p s i refer to the TROUBLESHOOTING GUIDE in this manual for assistance If pres sure does fall within specification operate normally CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING 3 Unplug unit 4 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET 5 Move product tank back to access regulator Refer to PRO
78. s are encountered in this installation contact Invacare Technical Service at 800 832 4707 or in Florida 1 407 321 5630 57 0 Y S W PROCEDURE 17 PURITY SWITCH PROCEDURE 17 SENSO2 ALARM INDICATORS AND SWITCH CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELEC TRICAL OUTLET BEFORE SERVICING Operation The Invacare 5 and 6 with SensO2 is equipped with an oxygen purity indicator This feature monitors the purity level of the oxygen generated by the concentrator If purity falls below alarm thresholds indicator lights on the control panel will illuminate NOTE Concentrator can be used during initial warm up time approx 30 minutes When the unit is initially turned ON no oxygen purity lights will illuminate Within 5 to 30 minutes after initial startup a GREEN light will illuminate in the Oxygen Purity Section of the Control Panel if the concentration level is in specification Any other indicator light illuminating will signal a condition that requires service The concentra tor may be used while waiting for a light to illuminate Indicator Lights FIGURE 1 GREEN LIGHT Normal Operation YELLOW LIGHT You may continue to use the concentrator unless instructed otherwise by your supplier Call Supplier IMMEDIATELY Be certain that BACKUP OXYGEN is nearby RED LIGHT Total unit shutdown Switch IMMEDIATELY to BACKUP OXYGEN supply Call Supp
79. s to perform to specification contact Invacare Technical Service Compressor Seah 7 Compressor Molex Connector Bee 22 Disconnect from Harness STEP 2 b Relief Valve Stem Pull Out to Simulate Leak STEP 2 a Compressor FIGURE 1 LOW PRESSURE TEST 63 A L R M PROCEDURE 20 ALARM TEST 3 HIGH PRESSURE Occurs when pressure in product tank rises beyond a preset value typically 23 1 1 p s i Test in the following manner High Pressure Test FIGURE 2 3 a With unit running and flow set at 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 Refer to FIGURE 5 for Shutdown Mode 3 b Set flow at l min for 3LX 5 L min for 5LX 5LXO2 or 6 L min for 6LXO2 Turn unit OFF and remove one 1 RED wire from the top of Pilot Valve 1 Turn unit ON The high pressure alarm should activate within 30 seconds Refer to FIGURE 5 for Shutdown Mode L R M NOTE If any alarm fails to perform to specification contact Invacare Technical Service ORANGE RED Wires Wires S S SS Remove Either Wire Remove SS STEPS 3 a and 3 b E Pilot Valve 1 4 way Valve SHOWN FOR REFERENCE FIGURE 2 HIGH PRESSURE TEST 4 OXYGEN SENSOR 5LXO2 6LXO2 Alarm sequence occurs when concentration levels fa
80. screw access hole on the opposite of the connecting rod to loosen it from the bear side of the compressor body ing of the eccentric 3 Use the 1 8 inch Allen wrench to loosen the set screw 6 Carefully slide the eccentric out of the compres sor housing and set aside NOTE DO NOT remove the eccentric set screw Remove the aluminum sleeve from the piston loosen it ONLY 2 2 4 a lt Tilt the piston slightly and with the other hand slide the lower portion of the piston around the cam shaft and out through the side of the compressor 3 Mounting Phillips Head L ME Screws 12 T NOTE One 1 Piston D Rebuild ONLY PAA Head R SHOWN for Clarity Head Gasket Valve Plate Head Assembly M Valve Plate Gasket Eccentric Set R 1 Screw Piston CIN Fan Blade Valve Plate sua U Sleeve Eccentric Bearing Teflon Ring Connecting Rod Screw Eccentric Screw Access Connecting Rod NOTE ECCERE Hole for this Piston Connecting Rod Screw Access ACER imei VV Side of Compressor Piston Hole for this Piston Set Screw Access Holes FIGURE 7 REMOVING THE PISTON 3 LITER COMPRESSOR 25 PROCEDURE 2 The compressor eccentric uses a precision sealed bearing 1 Place a bead of Hernon 846 on your finger and apply around the inside of the bearing bore of the new connecting rod 2 Install the new piston by inserting the piston head
81. ssure set point of 20 3 PSI 137 72 51 32 kPa BEFORE Serial No 97K or 21 3 PSI 144 79 51 32 kPa AFTER Serial No 97K is reached The time between cycles is dependent on altitude flow rate and internal environmental factors On the 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T or Pressure Equalization 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 11 ZO Prr 30z S E Q U E N E O R ZO Prr 30z 5 U E N F R INSTALLATION SEQUENCE OF OPERATION INSTALLATION SEQUENCE OF OPERATION CONTINUED If main power is lost the Battery Free Power Loss Alarm will sound a short with a long pause intermittently All units are equipped with a diagnostic alarm system that signals if the pneumatic pressure or electrical systems malfunction The Troubleshooting Guide explains the alarm system signals and reasons in detail for your convenience SENSO2 OXGYEN SENSOR TECHNOLOGY CERAMIC ZIRCONIA SENSOR Technical Description The oxygen being produced by the concentrator flows out of the product tank and into the flowmeter In line between these components is a tee fitting that direc
82. thead screwdriver to remove the valve screws securing the valve valve keeper and valve restraint to the valve plate 3 Remove the valve keeper and valve from the top of the valve plate 4 Remove the bottom valve screw valve keeper strip and valve from the bottom of the valve plate Remove the old gasket from the valve plate Reverse STEPS 1 5 to install the NEW valves and gasket onto the valve plate 7 Remove the old gasket in the head assembly and install the new gasket in the compressor head and the valve plate gasket into the underside of the valve plate NOTE DO NOT attempt to reinstall the head assem bly at this time 8 After the other piston and valves have been re placed install the valve plates over the aluminum sleeves ensuring that the valve keeper strip fits into the cut out in the top of the piston NOTE Ensure that the gaskets are not pinched or out of position when reinstalling the valve plates and the head assembly Doing this will prevent leaks and lowsystem pressures 9 Reinstall the head assembly onto the valve plates noting the markings made when the head assem bly and valve plates were removed 10 Tighten the screws in a criss cross manner and torque to 45 in Ibs 11 Reinstall the compressor 12 Run unit and check for leaks around compressor hoses and crossover tubes 13 If crossover tube s leak gently rotate the tube s approximately 1 4 turn Once O ring s seat themselv
83. through the side of the compressor body 3 Continue moving piston up into the upper compres sor housing with the connecting rod situated around the eccentric nib camshaft R E V M A C E CAUTION The eccentric set screw MUST face the flat spot on the eccentric nib shaft Failure to do so may cause damage to the compressor Reinstall the eccentric ensuring that the bearing on the eccentric sits inside the piston connect Piston Connecting Rod Slide Over Nib Or e Piston Set Screw Access Hole Nib PREVENTIVE MAINTENANCE PROCEDURE 2 PREVENTIVE MAINTENANCE continued Installing the New Piston FIGURE 8 WARNING DO NOT lubricate or use on any moving parts 5 Align the front face of the connecting rod with the front face of the bearing leaving a clearance of 032 1 16 inch 6 Apply a small amount of Hernon 423 to threads of connecting rod screw 7 nstall connecting rod screw and torque to 15 in los DO NOT OVERTIGHTEN CAUTION DO NOT force aluminum sleeve onto piston The Teflon ring may become damaged and make the piston unusable 8 Turn the eccentric until piston is in the full up position 9 Place the aluminum sleeve partially over the pis ton head at a 45 angle with the tooled edge up 10 Hold the piston in place and gently rotate the sleeve onto the piston head and down until it r
84. to the valve body If within such warranty period any such product shall be proven to 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 This warranty does not include normal wear and tear or shipping charges incurred in replacement part installation or repair of any such product Invacare Corporation s sole obligation and your exclusive remedy under this warranty shall be limited to such repair or replacement Routine mainte nance items such as filters are excluded from this warranty For warranty service please contact Invacare Corporation s service department at the toll free number on the back cover during normal working hours Upon receiving notice of an alleged defect in a product Invacare Corporation will issue a serialized return authorization It shall then be the responsibility of the purchaser to return the entire unit or remove at purchaser s cost the defective component part s identified pack the component part s in a manner to avoid shipping damage and to ship the component part s to either Invacare Corporation s plant or service center as specified by Invacare Corporation in advance Defective component part s must be returned for warranty inspection using the
85. ts a small flow of oxygen through a precision orifice to the oxygen sensor mounted on a 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 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 PC 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 that have been selected with the indicator switch mounted on the PC board Signals outside of the clinically acceptable limits generate responses in the form of lighted LEDs audible indicators and or system shut down Operating Sequence Once the power switch has been turned ON the SensO circuit will wait 5 minutes for the concentrator to begin producing clinically acceptable oxygen before activating No
86. uce the risk of fire Any materials that will burn in air and some that will not are easily ignited and burn rapidly high concentrations of oxygen safety concerns it is necessary that all sources of ignition kept away from the product and preferably out of the room in which it is being used 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 concentra tor 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 it 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 Service Personnel for examination and repair Keep the cord away from HEATED or HOT surfaces 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
87. ug before adjusting timing switch Electrical shock is possible Control Panel Timing Switch Control Panel Adjustment Screw FIGURE 1 TIMING THE INVACARE 5 CONCENTRATOR IRC 5LX 5LXO2 59 PROCEDURE 18 TIMING PROCEDURE 18 UNITS WITH CONTROL BOARD OR LX SMT BOARD IRC5LX 5LXO2 FIGURE 1 CONTINUED d Insert a small common or flathead screwdriver into the adjustment screw of the timing switch e Set the timing switch initially at the number 7 position 2 Turn unit on If after 10 minutes of run time the concentration is below specification change setting to a number one 1 position lower than the previous setting 4 Let unit run another 10 minutes If concentration is lower still change the switch to a number two 2 positions higher NOTE You will find that the concentrator will perform better at either the higher or lower setting The normal adjustment range is between 3 and A 5 Continue to change setting one 1 step at a time up or down until the concentration is the highest value achievable Refer to CONCENTRATION LEVELS Chart in this PROCEDURE of the Manual Once concentration has reached specification retiming is complete Reinstall inlet filter Reinstall control panel Refer to PROCEDURE 9 REMOVING CONTROL PANEL Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET oS ee TIMING IRC5LXO2 5LXO2T 6LXO2 6LXO2T UNITS WITH INTEGRATED OR TELEMETRY BOARDS FIGU
88. um oxygen concentration 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 O2 Level 1 L min 95 696 to 9396 2 L min 95 696 to 9396 3 L min 95 6 to 93 4 L min 95 6 to 91 5 L min 95 6 to 87 6 L min 95 6 to 87 61 L E K T E 5 PROCEDURE 19 PROCEDURE 19 LEAK TEST FIGURES 1 3 CAUTION TO PREVENT ELECTRICAL SHOCK ALWAYS DISCONNECT CONCENTRATOR FROM ELECTRICAL OUTLET BEFORE SERVICING Leak Test 1 Unplug unit 2 Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET 3 urn the concentrator on 4 Let concentrator run for 20 minutes CAUTION Apply small amount of leak test solution to fit tings only Avoid other components DO leak test 4 way Valve body Carefully leak test for pressure leaks around Sieve Bed Hoses at 4 way Valve DO NOT allow leak test solution to enter into 4 way Valve and system 5 With leak test or equivalent soapy water leak test the following a The two 2 sieve bed hoses at the top of 4 way Valve and hose to bottom center port on 4 way Valve FIGURE 1 NOTE Refer to PROCEDURE 2 PREVENTIVE MAINTENANCE for maintenance of heat exchanger and filters b Hose connections to top and bottom fittings of sieve beds c P E Valve hose conn
89. ur local elec tric company Replace P C Board PROCE DURE 11 Unit may need retiming after P B Board replacement PROCEDURE 18 NOTE REFER TO THE REPAIR REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER REPLACEMENT OR ADJUSTMENT PROCEDURES 19 U L E 5 O O T G TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE SYMPTOM PROBABLE CAUSE SOLUTION UNIT NOT OPERATING 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 CONTROL PANEL INDICATORS RED Off YELLOW Off GREEN Off Purity Switch setting at 73 or 85 Horn 2 Reattach horn connector to Disconnected harness UNIT NOT OPERATING Internal Status Indicators Transformer Assembly RED Off a Molex connector disconnected 1a Reattach connector GREEN Off from P C Board Control Panel Indicators b Faulty transformer assembly 1b Replace transformer assembly RED Off PROCEDURE 12 YELLOW Off GREEN Off Power Switch ON Continuous audible alarm T R O U L E 5 O O T G UNIT NOT OPERATING Internal Status Indicators Internal repairs required 1 Replace SensO2 circuit board RED Three 3 Flashes PROCEDURE 11 GREEN One 1 Flash Integrated Circuit Board Control Panel Indicators RED Off YELLOW Flashing GREEN On NOTE REF
90. viously removed NOTE If tygon tubing is damaged in any way replace the section of tygon tubing before installing check valve s 7 Run unit and check for leaks Refer to PROCEDURE 19 LEAK TEST 8 Reinstall cabinet Refer to PROCEDURE 1 REMOVING CABINET Ty wraps 2 per Check Valve Check Valve Check Valve Underside of 5 Check Valve Tygon Tubing Product Tank P n Md j FIGURE 1 REPLACING CHECK VALVES 40 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 Unplug unit Remove cabinet Refer to PROCEDURE 1 REMOVING CABINET Loosen adjustable clamp on product tank and slide clamp down below the adjustable clamp hanger R E G U L T O R Pull product tank back and up to access regulator Remove the four 4 mounting screws that secure regulator to product tank cap Remove regulator from product tank cap ensuring that the rings are removed NOTE Clean mounting surface of product tank lid Ensure that the two 2 rings for the NEW regulator are installed onto the ports underside of the NEW regulator before installation CAUTION Ensure proper installation of regulator Note flow arrow regulator This MUST face toward the front of unit or flow will be inte
91. xygen Concentrator in a dry area 2 DONOT place other objects on top of the repackaged concentrator to face Back of Unit Front of Unit Relief for gt Relief for Line Flowmeter Cord to face a FIGURE 1 UNPACKING 10 INSTALLATION SEQUENCE OF OPERATION INSTALLATION SEQUENCE OF OPERATION MODEL 3LX and MODELS 5LX 5LXO2 5LXO2T 6LXO2 6LXO2T INSTALLATION VERIFICATION OF BATTERY FREE POWER LOSS ALARM When your new Invacare concentrator arrives it should be checked for proper operating conditions 1 Ifthe unit has been in below freezing temperatures allow it to warm up to room temperature approxi mately 30 minutes before operating 2 The concentrator will 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 Tum 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 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 Connect cord to outlet and turn on concentrator Unit will sound 3 BEEPS on startup 5 Check the oxygen concentration per specifications after 30 40 minutes running time SEQUENCE OF OPERATION Applying 120 VAC via t

INVACARE OXYGEN CONCENTRATORS SERVICE MANUAL

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