Integra E-Z Oxygen Concentrator Service Manual
Contents
1. CAUTION There are no field serviceable components in the ATF assembly Any attempt to open the module without the express written consent of SeQual Technologies will result in module contamination and will void the warranty The ATF product flow pressure is self regulating by matching compressor size pressure and volume of flow to the rated flow of a particular ATF module Fixed orifices within the module regulate oxygen used as sieve bed purge gas No adjustments of any type are required in the field Full concentration is usually achieved within three 3 to ten 10 minutes of turning the unit on therefore a 10 minute warm up period is recommended prior to conducting concentration tests for diagnostic purposes Gas balance is maintained by controlling the flow rate on the POD assembly to operate the unit within its design range If the product flow is set beyond this design range there will be insufficient oxygen available to completely purge the beds and concentration will drop Conversely if there 1s extremely low flow less than 0 5 LPM more oxygen is purging and a build up of inert argon gas will occur which will reduce overall concentration readings As with any mechanical device certain precautions must be observed in order to maintain the unit properly By familiarizing themselves with several basic principles of ATF operation technicians will be able to rapidly diagnose problems effect repairs and return the concentrato2. Tilt the back cover rearward and lift clear Re install the back cover first by seating the back flange over the base Ensure that the wiring harness power cord plate is properly seated in the base Re install the front cover by aligning the two tabs with the openings in the base Ensure the front cover seats properly over the POD Assembly Seat the molded flange over the edge of the rear cover NOTE Do not allow the tabs to contact the electrical wiring harness Re install the five screws Torque side cabinet screws to 18 inch pounds Hand tighten the smaller screw in the handle to snug fit Unplug unit from the AC power source Confirm that Flow Indicator Backlight is off Remove the covers Cut Zip Tie amp Remove Cut the Zip Tie and disconnect the oxygen supply tube coming from the ATF at the HEPA filter Temporarily plug over the opening using tape or a cap in order to keep the filter clean Disconnect the 9V battery strap Remove the 8 pin plug J10 from the circuit board by pressing down on the side catch and pulling gently It may be necessary to rock the connector slightly Chart SeQual Technologies Inc Page 23 of 34 P N 2917 SS S Service Manual E UAL Integra E Z Oxygen Concentrators 6 2 6 Remove the four screw hardware sets that physically attach the POD to the center frame save them for reinstallation 6 2 7 Installation is conducted in the reverse order Ensure that the oxygen feed tube is routed through th
3. Annual PM Kit once every 12 Months Annually or as needed 3 2 1 Replace the 9V Battery once every 12 Months Annually or when Battery Level is at 2 Bars Replace the 9V battery 8098 SEQ annually or when the Battery Indicator Level is at 2 Bars To check this enter Service Mode as described in Section iza 20 3 2 2 Replace the Compressor Inlet Filter once every 12 months Annually or as needed Replace the compressor intake filter annually or as needed depending upon the environment in which the concentrator is awT operating The compressor intake filter can become clogged i En depending upon the amount of contaminants in the air smoke dust dirt pollen etc and may need to be changed more frequently Refer to the Troubleshooting Guide for signs of a clogged filter and refer to the Replacement Parts section for the correct compressor intake filter REPLACE FILTER CAUTION Operation of the oxygen concentrator with a clogged compressor intake filter will reduce the performance of the unit and can lead to system damage and premature failure 3 2 2 1 Open the hook and loop straps holding the Filter on the Filter Muffler assembly Hold the unit and twist and pull the filter to remove it from the muffler Insert outlet tube on Filter 2607 SEQ into the hole on the Muffler Rotate the filter so that the two parts are lined up across the top length and side Firmly push the Filter into the Muffler until the two
4. E UAL Integra E Z Oxygen Concentrators 2 9 2 5 1 252 PA SKE Flow Rate Audible Unit Overating Condition Shown Alarm State P 8 Not Unit not running Flow Unit not running Flow Starting the Integra E Z Push the On Off button and verify the unit Start Up Sequence Allow the unit to warm up and stabilize approximately 2 minutes but allow up to 10 minutes Adjust the flow using and buttons A shorter warm up will occur at lower flow rates NOTE The Integra E Z flow indicator sets the target flow rate desired by the patient The installation of humidifiers or other devices can cause a back pressure on the unit therefore it is recommend that the flow rate be set prior to attaching accessories to the concentrator After an initial startup or after a power interruption the unit may automatically reduce the flow rate briefly before returning to the set flow rate Start up Sequence OM units On initial start up Integra E Z units light the Green Yellow and Red LED s with a 3 second beep followed by an intermittent beep for the remainder of the warm up As concentration increases to 70 the Red LED turns off and the Yellow and Green remain on When the concentration reaches normal operating range above 85 the Yellow LED will turn off as well as the intermittent beep The Green LED will stay lit indicating normal operation Start up Sequence Non OM units On Non OM start up Integra E Z units will light the Green Y
5. Unit Test Procedure Alternate Method ccccccscccosccecccscccsccesccsccesccesccecccsccesccscccsccesccscccsccecccsccesccesccsccesccescs 14 43e Alarm Verification TOS aisiaren nonea DE SE R SSB BE SEEGER OR E A a ER REDER DE N 14 SS TROUBCTESHOO TING reinir AO Aaah 15 Sel Alum Conadi On una n a a a Ma vase a a a a a a aa a aa 15 5 2 Cn Ja TO SUA E a E O E E E E SNORE ERE 17 5 3 Unit tries to start but shuts down alarming sssssssssssssssseseeeeeoooosssssssssseeseeeeccccossssssssseseeeeeoocoosssssssssseeeeeeeoosese 17 5 4 Unit does not produce adequate oxygen flow ccccccccccccccsssssssssssssssssssscceccccccccccccacssssssseseceeeccccceeeeseassssssseeees 18 5 5 Unit starts but shuts down after a short period of OPeratiOn ssscccccccccccccsssssssssssessesccceccccccccececsasssssesesees IS 5 6 Compressor pressure relief valve actuates cnicvcised eich hen hae eA KAR ARORA 18 5 7 CC OINPTOSSOF NOISY SE esas EE A eh Aes 19 5 8 Trouble Shooting Guide for Integra E Z Units cccccccssssssssssssscessccccccccccccccccnssssssssscccccccccccceccccssssssssssseeeeeeeees 20 6 REPAIR PROCEDU RES isnende eders A a aa aaa 23 6 1 Removal and installation Of COV ETS io asier AE sid ai eaea ai a iA 23 6 2 Removal and installation of the POD ASS MDLy cccccccccssssssssssnssssssssscccccccccccccccccsasssssssssseecceccccccccssssssssssseeees 23 6 3 Printed Circuit Board Assembly PCBA Replacement Procedure cccccsssssss
6. breaker popped due to a high or low current Correct the source of the power problem Push the On Off button to stop alarm the unit resets itself if the source of the inconsistent power is resolved Wait for at least 20 seconds and push Off On button to restart the Integra E Z 5 1 1 5 O0xygen flow rate being measure and controlled by the Integra E Z doesn t agree with flow set on the front panel by more or less than 30 of target flow rate If alarm persists check for kinked or blocked tubing inside or outside the unit or for leaks between the flow meter and the control valve For further investigation check to see if the flow control valve is stuck in the open or closed position or doesn t adjust the flow 5 1 2 Solid YELLOW LED No alarm 5 1 2 1 The concentrator has detected a stuck button The button determined to be stuck will not function To locate which button is stuck push the buttons one at a time and see which one does not react If the On Off button is stuck unplug the power cord from the wall to turn the unit off 5 1 3 YELLOW and GREEN LED Illuminated Only No alarm 5 1 3 1 The concentrator is indicating that the 9V Battery has a low voltage level This is signaling the technician or patient that the Battery Level is at 2 Bars and the battery needs to be replaced NOTE This Alarm Indicator is shipped from the factory as D Disabled The provider may chose to turn this feature on as described in the Service Mode Secti
7. circuit board can result in a failure in performance of the device The push button On Off switch is of the momentary contact which is read by microcontroller on the main board and turns on the power to activate cooling fan ATF gear motor and compressor A Pure Sine wave electrical signal for Mains power is required to operate the Integra only Subsequently a Modified Sine Wave for Mains power is not recommended A power management feature has been incorporated to improve protection to the user in the event of a momentary power failure In the event of a power interruption the unit will alarm as normal for a power loss A 9V battery provides back up power for alarm circuit The unit will resume operating twenty seconds after the initial interruption unless it has been turned off during the power interruption Integra E Z family of oxygen concentrators incorporates a closed loop feedback flow control valve eliminating the need for the user to adjust or tweak the flow on the unit more than the initial setting This is accomplished by the integration of a flow and concentration measurement system OM models only in a new control system From the patient point of view the system will operate in a set and forget mode where a desired flow rate is set using up down arrows and a display to indicate the target flow rate and the system automatically adjusts the internal flow control valve to provide that flow to the patient regardless of wha
8. inlet hose If the compressor was removed re install according to the compressor removal and installation procedure New Spring Bolt hardware is available upon request Start the unit and check for leaks If compressor is noisy refer to section 5 7 for troubleshooting Shut down unit and install covers Chart SeQual Technologies Inc Page 30 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 7 Integra E Z 5L Specifications Integra E Z Model Number 6323A 6323A OM Technical Data Flow Rate 0 5 to 5 0 LPM Oxygen Concentration 1 0 to 5 0 LPM 91 3 at sea level Green Light Normal Operation Oxygen Concentration Indicator Yellow Light Flashing Below Normal Operation 85 Red Light Flashing Abnormal Operation 70 Nominal 7 5 psig 51 7 kPa Maximum 11 0 psig 75 8 kPa 50 F to 104 F 10 C to 40 C Power Interruption Power Surge simulated circuit breaker Compressor Malfunction Audible Alarm Indicators Excessive Internal Temperature Outlet Pressure 35 36 psig 241 2 248 1 kPa relief valve Abnormal Oxygen Flow Rate gt 30 target flow Low Therapeutic Oxygen Output lt 70 oxygen Back up Alarm Power 9V Battery Cabinet Air Inlet Compressor Inlet and HEPA Device Classification IEC Class II Type BF Applied Part Continuous Operation Temperature 4 F 20 C to 140 F 60 C Trons Pororo Reduan Humidity Up to 95 Non Condensing Back pressure Effect on 0 psig 0 kPa
9. of debris Refer to Routine Maintenance Section 2 3 Control Panel Display The Control Panel and buttons is shown in the figure below LCD Flow Indicator Increase Flow Button LPM Service Switch Hidden Button for ff B n Sas ALLEL ES Provider Use Only Decrease Flow Button Sag SD WARNING Operating Instructions al Technolog No SER or Naked Flame Read Instruction Manual before operating Locate device to allow free airflow from all directions Do not cover with a blanket or place objects under cabinet Connect power cord to electrical outlet not controlled by wall switch Connect prescribed oxygen accessories to O2 outlet as directed Press button to start or stop device Press Aor button to set prescribed O2 flow Clean the air intake filter weekly or as needed O Indicates device operating normally A Warning indicator Call for service and continue to use device A Indicates malfunction Call for service Federal law USA restricts this device to sale by or on the order of a physician 2 4 Plug the unit in The backlight on the Flow Indicator LCD display will turn ON indicating the unit is energized and ready for use WARNING Do Not connect to an extension cord or electrical outlet controlled by a switch No other appliance should be plugged into the wall outlet Voltage requirements are marked on the label on back of unit Chart SeQual Technologies Inc Page 8 of 34 P N 2917 S Service Manual
10. replace humidifier as required Clean air inlet filter or Low oxygen flow AEE ETTE Perform Annual Filter PM Service required Call Tech refer to the alarm support or indications on Table 3 this 1 Check System Pressure at Internal component worn or section NT malfunctioning DISS adapter 2 Replace ATF Assy 3 Compressor may need rebuilding i i Service required Call Tech Flow Rate not visible on apr nee Service required Call Tech Flow Indicator Display Support Replace Pod Assy Audible Alarm Red Light On Flow Indicator Blank Back Light On Note If abnormal operating conditions are detected and cannot be remedied contact SeQual Customer Service Remove power cord from wall System malfunction outlet Service required Chart SeQual Technologies Inc Page 21 of 34 P N 2917 S Service Manual EQUAL Integra E Z Oxygen Concentrators Table 3 Operation Display Conditions Flow Rate Audible Unit Operating Condition Shown Alarm State P 8 Not Unit not running Flow i Unit not running Flow Yes nite ee Unit is Starting seconds Running Periodic Beep Unit is warming up Periodic Runnin Beep 8 Yes Off Off Off Running Normal Operating Condition iodi Unit turned Yes Off Off Periodic Not ni une Beep Running On Off On Quickly Oxygen Concentration Below Normal Level Running he Flow Rate Not Correct 10 off he flow es Cohen kat on es Level Running O Flow Rate AD
11. reshaped If the noise decreased while pressing on the right end the coil needs to be closed slightly If the noise decreased while pressing on the left end it will need to be opened slightly WARNING Do not perform this with bare hands and a unit which has been running for any period of time The heat exchanger becomes very hot and can cause bad burns to hands Wear protective gloves as required Open or close the coils by gently manipulating with thumbs and fingers The spacing between the coils should be even Ensure that none of the coils contact each other Ensure that the air hose running through the center frame does not touch the sides of the opening If the noise occurs after the compressor has been removed from the unit and or rebuilt the vibration isolation springs may be forcing the compressor out of its natural position To remedy this issue look at one end of the compressor and see 1f it is leaning toward or away from center frame Rotate the springs to bring the compressor into a neutral position This will need to be done for all four springs as well as in conjunction with the reshaping the heat exchanger NOTE A noise free installation requires the compressor to sit on the four springs in a neutral position without any external force pushing it out of position Trouble Shooting Guide for Integra E Z units Table 1 Concentrator is not Running Symptom Probable Cause Unit won t start Power cord not plugged into wa
12. 2 Removal and Installation of the POD Assembly 6 4 Removal and installation of the ATF module 6 4 1 Unplug unit from the AC power source Confirm that Flow Indicator Backlight is off 6 4 2 Remove the covers 6 4 3 Disconnect the white ATF power connector shown in the picture by pressing the locking tabs and pulling the connector housings apart see picture on next page Chart SeQual Technologies Inc Page 26 of 34 P N 2917 A S Service Manual E UAL Integra E Z Oxygen Concentrators 6 4 4 6 4 5 6 4 6 6 4 7 6 4 8 6 4 9 6 5 6 5 1 6 5 2 6 5 3 6 5 4 6 5 5 6 5 6 6 5 7 Oxygen Outlet Hose Clamp Compressed Air Inlet Hose Clamp Compressed Air Heat Exchanger ATF HEPA Filter ATF Power Connector Loosen the clamp on the compressed air inlet line and remove the hose You must Plug or tape over the opening in the ATF Loosen the clamp on the oxygen outlet tubing and remove the tube You must Plug or tape over the opening in the ATF Loosen the four screws holding the clamps to the base Rotate the clamps to allow the ATF to be pulled upward and clear of the base There is no need to remove them fully Installation is the reverse Ensure that the ATF is properly oriented in the base Ensure plugs or tape on ATF have been removed Tighten the toe clamp screws to 20 inch pounds Tighten the air supply hose and oxygen tube clamps to 70 inch ounces Start the unit and check for leaks Shut do
13. 5 0 LPM Flow Indicator 1 psig 7 kPa 5 0 LPM Nominal Temperature 50 F to 104 F 10 C to 40 C Independent of OSCI Operation Atmospheric Pressure 85 3 and 70 5 oxygen concentration measurement accuracy Where equipped Subject to 3 system concentration accuracy and for backpressures up to 7kPa Where equipped Subject to 5 system concentration accuracy and for backpressures up to 7kPa Outlet pressure may decline to 5 0 psig 34 5 kPa nominal at 10 000 ft altitude System performance may decline above 10 000 ft 3048m Chart SeQual Technologies Inc Page 31 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 8 Integra E Z 7L Specifications Integra Model Number 6323A 7 6323A OM 7 Technical Data 0 5 to 7 0 LPM Oxygen Concentration 0 5 to 7 0 LPM 91 3 at sea level Green Light Normal Operation Oxygen Concentration Indicator Yellow Light Flashing Below Normal Operation 85 Red Light Flashing Abnormal Operation 70 Oxygen Outlet Pressure Nominal 7 0 psig 48 2 kPa Maximum 11 0 psig Electrical Power 115V 60Hz 5 0A Nominal 50 F to 104 F 10 C to 40 C Sound Level 56 0 dBA Nominal Dimensions H x W x D 26 5 in 66 cm H x 14 7in 37 cm W x 19 5 in 50 cm D Power Interruption Power Surge simulated circuit breaker Compressor Malfunction Audible Alarm Indicators Excessive Internal Temperature Outlet Pressure 35 36 psig 241 2 248 1 kP
14. 7 for troubleshooting Shut down unit and install covers Compressor Top End rebuild NOTE Refer to Replacement Parts Section for proper rebuild kit Contact SeQual Customer Service for all other compressor accessories Compressor manufacturer instructions supersede SeQual s if differences occur NOTE Experienced technicians with proper tools may elect to perform the compressor top end rebuild without removing the compressor from the unit Removing the filter muffler assembly allows adequate clearance for the removal and replacement of the compressor heads If in doubt remove the compressor for rebuilding Unplug unit from the AC power source Confirm that Flow Indicator Backlight is off Remove the covers Remove the clear air inlet tube from the barb Cap Cork the tubing to prevent moisture ingress Disconnect the heat exchanger coil from the fitting on the compressor For compressor rebuild follow the service instructions provided with the rebuild kit Chart SeQual Technologies Inc Page 29 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 6 6 5 6 6 6 6 6 7 6 6 8 NOTE Prior to installing the heat exchanger tubing into push lock fitting ensure that any sharp edges are removed to avoid cutting the O ring and generating a compressor leak A compressed air leak will cause the ATF performance to degrade quickly This will result in premature unit failure Install the heat exchanger and air
15. Module 2640V SEQ Call SeQual Customer Service Printed Circuit Board Assembly call 1 800 482 2473 option l for correct Fuse F2 500V 10A SIBA 189 140 replacement part Specify Model SN 120V units Number when ordering parts Fuse F2 500V 5A SIBA ff 189 140 5 220V units wal Chart SeQual Technologies Inc 2200 Airport Industrial Drive Suite 500 Ball Ground GA 30107 USA www sequal com C 0029 Chart SeQual Technologies Inc Page 34 of 34 P N 2917
16. NOT 30 off Em flow 9V Battery Low HR Unit is Unitis overheating Compressor Malfunction Compressor Malfunction Internal Fuse is Blown Internal Fuse is Blown is Blown These conditions are displayed only on units equipped with optional oxygen monitor OM Call the SeQual Customer Service if abnormal conditions are detected and cannot be remedied During System Malfunction condition the Green and Yellow lights may be On or Off Running Chart SeQual Technologies Inc Page 22 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 6 Repair Procedures WARNING Observe all safety precautions during maintenance Unplug the N unit unless power is required for observation of operation adjustment power readings or leak checks WARNING At the completion of any procedure which disturbs any air N or oxygen carrying hose or tube conduct a leak check of the affected area prior to returning the unit to service WARNING N There are no fan guards on the compressor Keep fingers clear of the fan blades 6 1Removal and Installation of Covers 6 1 1 6 1 2 6 1 3 6 1 4 6 2Removal and Installation of POD Assembly 6 2 1 6 2 2 6 2 3 6 2 4 6 2 5 Remove the five screws holding the cover halves together two in each side and one in the handle Tilt the front cover forward and lift clear NOTE Ensure any attachments are removed from DISS adapter fitting
17. SEQUAL Integra E Z Oxygen Concentrator Service Manual P N 2917 Rev E F Dec 2011 S Service Manual E UAL Integra E Z Oxygen Concentrators TABLE OF CONTENTS k TNFRODE Go oases sci ce rede cerasccecaeces aa ceceasewetoa vous a O aaa 3 eke JE XDIGNGHON Of TOI S oirra E T N E A E A E TE E cesses 3 L2 PAMO aera a ET TOE ECT A EEE E TE E 3 L3 dniroduchon TO the ATF serce n a a a a a a a a a a res 3 TA Basle Mechanical Layonl aasin i E ET A EE E TE 5 1 5 Theory OF OPTa Ol oesie EN T E E EER N TE EA 5 2 SBEISUPANDOPERATIQON oiean aeaa aO eae aaea a 8 21 Theproper locationis israe inea aa e TEE O LE E 8 22 Air intake FACT occae rarere rarere EE EE EE EEE EE 8 2 32 Control Panel Display 4 2e rarere eres ningerne arsen klarede 8 24 Plug the TTI AR iM siroce aire in E E SE SETE TEEN STE SER PETERS SEEST SEERE EEUE NEE ERE BERETTES IDE RE hired 8 23 St ring the INSTA E Z rerien eak ie a T EEE UE EEV EE aaa 9 ZO DCVCEMVMOd E irae a a a a a a aa A aa a e a e e EE E 10 2 MAINILE NANCE zaan a O O EO E T E E EA a 9 3 1 CICGIING air Make TEF oor N A AE O EE AO E EAR II 3 2 Scheduled Preventive Maintenance s soseossseoseosesseseoseosecssseoseosessosecseosecscsecsecseoscsecseoseoscoscseoseosesecsecseoscseoseose 12 d FEST PROCEDURES oreraa E a a E a E er sees 13 4 1 Unit Test Procedure Preferred Method cccctssosssaresvotsassecctes icorstns tasneusasyetodcastuseceasddeadsvadsaeapeveeead tench eas eenvteateeneeeos 13 4 2
18. a relief valve Abnormal Oxygen Flow Rate gt 30 target flow Low Therapeutic Oxygen Output lt 70 oxygen Back up Alarm Power Cabinet Air Inlet Compressor Inlet and HEPA Device Classification IEC Class II Type BF Applied Part Continuous Operation Temperature 4 F 20 C to 140 F 60 C Humidity Up to 95 Non Condensing Back pressure Effect on 0 psig 0 kPa 7 0 LPM canna Temperature 50 F to 104 F 10 C to 40 C Independent of OSCI Operation Atmospheric Pressure Where equipped Subject to system concentration accuracy and for backpressures up to 7kPa Where equipped Subject to 5 system concentration accuracy and for backpressures up to 7kPa Outlet pressure may decline to 5 0 psig 34 5 kPa nominal at 10 000 ft altitude System performance may decline above 10 000 ft 3048m Chart SeQual Technologies Inc Page 32 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 9 Integra E Z 10L Specifications Integra E Z Model 6323A 10 6323A OM 10 Technical Data Flow Rate 0 5 to 10 0 LPM Oxygen Concentration 1 0 to 10 0 LPM 91 3 at sea level Green Light Normal Operation Oxygen Concentration Indicator Yellow Light Flashing Below Normal Operation 85 Red Light Flashing Abnormal Operation 70 115V 60Hz 5 0A Nominal 220 240V 50Hz 2 2A Nominal 50 F to 104 F 10 C to 40 C Power Interruption Power Surge simulated circuit breaker Com
19. cian if accompanying procedures or explanations are not adhered to CAUTION Indicates the possibility of damage to the device or equipment if procedures are not followed NOTE Places emphasis on an operating characteristic or important consideration 1 2 Definitions ATF Advanced Technology Fractionator The term used to describe the oxygen concentrating module used in SeQual products ESD Electro Static Discharge The effect of small static electrical charges on printed circuit boards and components LPM Liters Per Minute typically referring to oxygen flow rate OM Oxygen Monitor Integra concentrators can be ordered with an integrated oxygen monitor When specified a procedure may apply only to OM equipped units POD Assembly Subassembly consisting of the front panel and user interface components including the printed circuit board and oxygen monitoring device Product Product flow Refers to the oxygen being produced Rated Flow The flow rate for which that model of Integra was designed to operate as a maximum continuous rate The rated flow of an Integra E Z 5 is five liters per minute The rated flow of an Integra E Z 7 is seven liters per minute and Integra E Z 10 is ten liters minute Upgraded It is the policy of SeQual Technologies to incorporate certain design improvements into machines which have been returned to the factory for inspection and or repair References in this manual to ser
20. dy alarm Concentration below 70 5 1 6 1 Push the On Off switch to silence alarm Attempt restart and check for the same conditions as outlined above flow setting filter clog etc 5 1 6 2 Check the unit interior for loose or disconnected oxygen tubing 5 1 6 3 Disconnect external attachments and run Integra Check for fluctuations 1 LPM If fluctuations present contact SeQual Customer Service NOTE On initial start up a timing circuit in the printed circuit board prevents the alarm from sounding while the unit stabilizes The alarm will not sound until this 10 minute warm up time delay is complete During this time an intermittent beep will sound alerting the user that the Integra E Z is warming up 5 2 Unit fails to start NOTE All Integra E Z models contain a power management feature that will automatically restart a unit that experiences a power interruption If the power interruption was very short and the unit was not turned off or the unit was turned off and on quickly there will be a delay in starting The Yellow Indicator light will be on and an intermittent beeping sound will be heard Wait 20 seconds Unit will start automatically 5 2 1 If unit doesn t start first check if Flow Indicator LCD Display backlight is turned on in bright daylight this may be a little difficult to detect so cup your hand around the display area to determine if this light is on If it is off follow next steps 5 2 2 Check that unit
21. e opening in the center frame to the HEPA filter coming from the ATF Torque the nuts to 8 inch pounds 6 2 8 Start the unit and check for leaks at tubing connector to NOTE Ensure the feed tube 1s not blocked crimped or kinked upon completion of the installation or the unit will alarm for low oxygen flow after the 10 minute warm up cycle is complete oxygen HEPA filter 6 2 9 6 10 9 Shut down unit and re install covers 6 3Printed Circuit Board Assembly PCBA Replacement Procedure 6 3 1 Board Removal and Installation 6 3 1 1 To remove the PCBA the POD needs to be removed from the unit Remove the POD Assembly by following guidance from section 6 2 Removal and installation of the Pod Assembly Once the POD is removed replace the board as described in the following steps CAUTION When handling the printed circuit board assembly use proper Electro Static Discharge ESD handling precautions NOTE The PCBA can be replaced in the POD assembly or the Front Panel can be removed from the POD but will require disconnecting the tubing at the check valve 6 3 1 2 Disconnect the large flat ribbon cable connector attaching the Membrane Switch to the PCBA 12 pin connector at J1 6 3 1 3 Disconnect the small electrical connector attached to the Control Valve Assembly 6 pin connector at J6 6 3 1 4 Remove Qty 2 Zip Ties at the Inlet and Outlet of the Flow Tube When disconnecting the tubing a forward push of the tube o
22. ellow and Red LED s with a 3 second beep indicating all alarms indicators are functioning followed by the green LED turning on The table below shows operating conditions for Integra E Z Oxygen Concentrators Flow Rate Audible Unit Operating Condition Shown Alarm State P 8 Yes ren e Unit is Starting seconds Running Periodic Runnin Beep 8 Yes Period Unit is warming up oys ai o or Pade running Beep Yes Off Off Off Running Normal Operating Condition Periodic Not Unit turned These conditions are displayed only on units equipped with oxygen monitor Chart SeQual Technologies Inc Page 9 of 34 P N 2917 A S Service Manual E UAL Integra E Z Oxygen Concentrators 2 5 4 Attach required tubing humidifier and additional accessories as prescribed CAUTION Use of downstream or external flow control device is not recommended The Integra E Z will attempt to control the flow rate to the target flow set on the indicator If the unit cannot control to this flow rate an alarm indication will occur and potential damage may occur to the unit CAUTION N Use of certain administration accessories not specified for use with this oxygen concentrator may impair the performance 2 6 Service Mode To Enter Service Mode press the Hidden Switch located behind the top No Smoking symbol and either the or button for a minimum of 2 seconds To Exit Service Mode press the Hidden Switch and either the
23. ere is no valve rotation check for AC line voltage on the two pin connector to the gear motor If voltage is present replace the ATF 5 8 5 If no voltage is present check for loose connections on the eight pin connector on the PCA board If continuity check in the harness doesn t detect bad contact replace the pod or PCA board assembly 5 8 6 To test the compressor pressure relief valve PRV the ATF will need to be disconnected from the compressor Remove the air tube from the air inlet barb on the ATF and attach to the following gauge setup Install a T fitting to the hose from the compressor At one end of the T install a pressure gauge at the other end install a needle valve fully open in series with a flow meter Start the compressor and slowly increase the pressure by closing the valve The pressure relief valve should not actuate until 35 2 psig Cycle the PRV a few times to clean out any potential contamination Test the PRV again to see if it activates at 35 2 psig Replace if it fails If these steps do not identify the problem contact SeQual Customer Service for assistance Compressor Noisy Compressor noises can be either a result of vibration being transmitted to the frame or a sign of impending compressor failure Bearing or piston noise can be localized by holding a long screwdriver on the compressor frame or head while placing your ear against the handle Noise of this type will not be repairable by rebuild
24. essor Another non replaceable fuse F1 provides protection in the event of a transformer failure A thermal cut off switch located in the bottom of the base in front of the compressor acts as a thermal circuit interrupt In the event that the internal cabinet temperature rises above approximately 140 degrees Fahrenheit 60 degrees C the switch will open this will be detected by the current sense feature and shut the unit off and alarm The switch will automatically reset when the cabinet temperature returns to normal operating range On the Integra E Z models once the thermal switch closes again the unit will not automatically turn back ON after temperature returns to normal It will require user to address the cause of overheating unit covered by blanket or similar issue and then press the On Off button to continue us of the oxygen concentrator Chart SeQual Technologies Inc Page 7 of 34 P N 2917 SS S Service Manual E UAL Integra E Z Oxygen Concentrators 2 Set up and Operation 2 1 The proper location Locate the concentrator in a well ventilated space that provides adequate airflow Ensure that furniture draperies or clothing will not impede air circulation The Integra requires 6 air exchanges per hour to properly ventilate Avoid placing the unit over a floor heat register or against a baseboard heating system 2 2 Air intake filter The air intake filter should be inspected and cleaned Weekly It should be clean and free
25. he air inlet filter at a weekly interval to keep the unit functioning properly Once the filter is cleaned dried and re installed The user can easily achieve this maintenance When other than routine maintenance is needed contact an Authorized Service Center for a Return Authorization NOTE Plug the Integra in and run the device for 1 2 hours on minimum of a monthly basis Annual Maintenance An Annual Internal Filter PM is required for proper operation of the Integra 3 1 Cleaning air intake filter 3 1 1 Once a week the air intake filter located on top of the unit must be cleaned 3 1 2 Remove the filter from the cabinet 3 1 3 Wash the filter in warm water using a mild detergent solution 3 1 4 Rinse the filter thoroughly and squeeze out the excess water 3 1 5 Allow the filter to air dry CAUTION The filter should be completely dry before using it again as excess moisture may impair the proper operation of the oxygen concentrator 3 1 5 Re insert the filter in the cabinet CAUTION The air intake filter should be replaced Annually If the Oxygen Concentrator is used in a dusty environment the filter may need to be cleaned or replaced more often Do Not operate the Oxygen Concentrator for more than 30 minutes without a filter installed Chart SeQual Technologies Inc Page 11 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 3 2 Scheduled Preventive Maintenance Use PN 4542 SEQ
26. hows direction of the flow make sure that HEPA Filter is installed following the direction of the flow which is from the ATF to the POD Flow is upwards in the picture below 3 2 3 4 Apply a new cable tie or clamp around the tubing HEPA filter 4 Test Procedures 4 1 Unit Test Procedure Preferred Method It is recommended that the Integra E Z be tested for oxygen concentration and flow performance periodically The factory recommended Test Setup for the Integra E Z is shown on the following diagram Oxygen monitors may or may not have an internal pump to draw samples of Oxygen to be measured Placement of the Oxygen Monitor in the test circuit depends whether they have an internal pump Only one Oxygen Monitor is needed though 4 1 1 Connect the circuit per the diagram shown on the next page 4 1 2 Turn the concentrator on and allow it to warm up at one half of its rated flow setting approximately 5 minutes 4 1 3 Set the target flow on the Integra E Z to the maximum rated flow 5 LPM for Integra Five 7 LPM for Integra Seven 10 LPM for Integra Ten and oxygen monitor flow valve to low flow settings 4 1 5 Allow the unit stabilize approximately 10 minutes Chart SeQual Technologies Inc Page 13 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 4 1 6 Verify the O2 concentration O2 flow rate and O2 pressure are within specification See Section 4 2 4 3 4 3 1 7 8 or 9 depe
27. ial numbers indicates that the particular feature or function has been incorporated beginning with that serial number and is being incorporated on upgraded machines 1 3 Introduction to the ATF The SeQual Advanced Technology Fractionator ATF module eliminates many of the parts found in conventional pressure swing adsorption oxygen concentrators It has been designed and constructed to provide years of trouble free service A quick inspection will reveal the absence of the product tank pressure regulator and solenoid manifold found in conventional two bed concentrators The functions of these devices are replaced by a single rotating valve which ports gas movement within the ATF module Chart SeQual Technologies Inc Page 3 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators The ATF module utilizes twelve sieve beds and a patented rotary valve to produce a constant flow of oxygen A small electric motor and reduction gear mounted on the ATF module turns the valve As the valve rotates compressed air is channeled to the beds resulting in four of the beds producing oxygen four beds are static and four beds are purging The oxygen is collected in the product head and is then routed through the pod assembly for patient use Purge gasses are expelled through two integral mufflers in the ATF base characterized by a soft rhythmic breathing noise which can be heard when operating the unit with the covers removed
28. ing the compressor it will need to be replaced NOTE A unit which has been exposed to temperatures below 50 F for an extended time may have cold soaked the compressor piston sleeves causing the sleeves to contract This will be indicated by a squealing sound or failure of the compressor to start Allow the unit to come up to room temperature before operating Noise as a result of vibration transmission can occur if the heat exchanger coil has been deformed due to rough handling Improper coil spacing can pre load the compressor spring mounts transmitting compressor vibration to the frame Remove the covers and start the unit Press on the right end of the compressor to see if noise abates WARNING There are no fan guards on the compressor Keep fingers clear of the fan blades WARNING Chart SeQual Technologies Inc Page 19 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 52 5 5 7 6 5 7 7 5 7 8 5 7 9 5 8 compressor surfaces especially the metal ones will be hot and can N If the compressor has been running for any length of time the cause burns Wear protective gloves as required If the noise does not go away or increases gently press on the left end of the compressor If the noise persists check for loose hardware Refer to the Compressor Installation section If the noise goes away while pressing on one of the compressor ends the heat exchanger coil will need to be
29. is plugged in 5 2 3 Check that the unit is not plugged into an outlet controlled by a wall switch that is off 5 2 4 Check that the fuse or circuit breaker controlling the outlet is intact on 5 2 5 Check the main fuse on the circuit board is not blown Replace this fuse if it is blown 5 2 6 Check the compressor capacitor is not shorted or blown Replace if needed 5 3 Unit tries to start but shuts down alarming NOTE A unit which has been exposed to temperatures below 50 F for an extended time may have cold soaked the compressor piston sleeves causing the sleeves to contract This will be indicated by a squealing sound or failure of Chart SeQual Technologies Inc Page 17 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 393 1 J NS 5 4 5 4 1 5 4 2 5 4 3 5 4 4 5 4 5 5 4 6 5 4 7 3 5 5 5 1 BIZ D2 5 6 5 6 1 the compressor to start Allow the unit to come up to room temperature before operating Attempting to start the unit with air pressure already in the system will cause the compressor to stall As stated in the Note in section 5 2 a time delay feature has been added to prevent the unit from starting until the pressure in the system has bled down Unplug unit open covers and check to ensure the compressor can be rotated by turning the fan by hand If this is difficult to do then there is a compressor malfunction and the compressor must be serviced or
30. ll outlet Sa ane Power ord Flow Indicator Blank 5mp i Back Light Off remire blown Check condition of power cord l Service required Audible Alarm Power cord pulled from wall outlet Plug in power cord Blinking Red Light Push On Off Button to turn off Flow Indicator Blank unit Back Light Off Power outage Push On Off Button to restart unit when power comes back on Chart SeQual Technologies Inc Page 20 of 34 P N 2917 a S Service Manual E UAL Integra E Z Oxygen Concentrators Ensure the unit is not plugged into a wall switched outlet Check house circuit breaker or fuse reset or replace as needed Remove any obstruction s from No power at wall outlet Audible Alarm Unit overheating air openings and refer to page 7 Blinking Red Light The Proper Location section Flow Indicator Blank EN EN i Service required Call Tech Back Light On Compressor malfunction Support Table 2 Concentrator Running Symptom Probable Cause Clean or replace humidifier Humidifier or tubing blocked or kinked and or tubing Remove tube kink i i Clean air inlet filter No oxygen flow Geran Canes Perform Annual Filter PM Service required Call Tech refer to the alarm Support indications on Table 3 this 1 Check stepper motor in flow section ene ee Pe ene control valve a aaa 2 Check ATF gearmotor turning properly pressure in vs out 3 Check proper pressure from compressor ree SA Repair or
31. nding on the model PRESSURE GAUGE INTEGRA E Z O2 MONITOR WITHOUT PUMP Alternate Location Atmosphere O2 MONITOR WITH PUMP Preferred Location INTERNAL FLOW CONTROL VALVE Factory Recommended Test Setup to verify performance of Oxygen Concentrator NOTE For Integra E Z units an external flow valve will not perform adequately due to the flow control circuit In this situation the pressure gage should be plumbed into the system at the HEPA filter inside the unit For the O2 monitor without pump it can be installed after the outlet of the external flow meter or at the outlet fitting see Alternate Method 4 2 to force the O2 gas through the O analyzer check to ensure the O gt analyzer can handle the total flow rate Unit Test Procedure Alternate Method Attach a calibrated Oxygen Monitor to the DISS block in accordance with Oxygen Monitor manufacturers recommendations It is important to not obstruct the flow as this will affect the Integra s actual concentration lower flow will typically increase the oxygen concentration NOTE The flow control circuit on the Integra E Z is designed to properly deliver oxygen flow rates during normal usage Some sensing equipment may restrict the actual flow rate below what the Integra E Z can provide and provide inaccurate concentration readings A highly blocked oxygen outlet will result in lower oxygen concentration due to a build up of argon gas Ala
32. net and can be felt by putting a hand under the base If no Air flow is present Unplug the unit remove the covers and check cooling fan for blockage Plug the unit back in and check for line voltage at the fan connector If not present check to ensure the eight pin connector J10 is securely connected at the printed circuit board If the connection is good then replacement of the printed circuit board or POD assembly may be required Contact SeQual Customer Service for assistance Compressor pressure relief valve actuates Turn unit ON and check for valve rotation on the ATF Loosen the four clamp screws attaching the ATF to the base sufficiently to lift the ATF out of the nest to rotate the ATF onto its side being careful not to hit the gearmotor on the base It is not necessary to remove any tubing or hoses Lay the ATF on its side on the base and look at the gearbox for the drive shaft rotation NOTE Chart SeQual Technologies Inc Page 18 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 5 6 2 5 6 3 5 6 4 5 6 5 5 6 6 5 6 7 5 6 8 5 6 9 5 6 10 5 6 11 3 7 5 7 1 IT ST 3 5 7 4 Drive shaft rotation may be difficult to see Mark the shaft using a sharpie marker or grease pencil If the valve is rotating smoothly test the compressor relief valve See step 6 If the valve motion is jerky hesitates or otherwise displays inconsistent rotation replace the ATF If th
33. nning These conditions are displayed only on units equipped with oxygen monitor 5 Troubleshooting 5 1 Alarm Conditions eal ot VESESEL ED Shown Alarm State Oxygen Concentration kee Flow Rate Not Correct 10 off kee iggy flow P SO aon R ee Level unng O Flow Rate phous 30 off target flow efor a or or ree nest 9V Battery Low Voltage pve mm m or or Reming tata Unit is Unitis overheating a Malfunction ena Power ae These conditions are displayed only on units equipped with oxygen Call the SeQual Customer Service if abnormal conditions are detected and cannot be remedied Chart SeQual Technologies Inc Page 15 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators During System Malfunction condition the Green and Yellow lights may be On or Off 5 1 1 Flashing RED LED Steady alarm sounding 5 1 1 1 Power Interruption External to Unit Current from wall outlet interrupted Push the On Off button to stop alarm Check for open household fuse or actuated household circuit breaker Restore power 5 1 1 2 Power Interruption Internal to Unit Thermal switch activated Push the On Off button to stop alarm Check for adequate clearance refer to the Operation and Set up section 5 1 1 3 Power Interruption Internal to Unit Compressor Malfunction See Section 5 5 or 5 9 for compressor troubleshooting 5 1 1 4 Power Sags and Surges Simulating a circuit
34. nsure that the compressor wire harness does not snag in other wiring The compressor wires to the capacitor are routed under the center frame and require care in removal 6 5 10 If the compressor is being replaced and new compressor comes without fittings transfer fittings In compressor head to new compressor Ensure that fittings are properly oriented as were oriented on the old compressor Use Permabond Perma Lok LHO050 or equivalent pipe thread seal The use of Teflon tape is not recommended Refer to the picture for proper installation orientation CAUTION When installing fittings do not over tighten This can result in damage to the compressor heads Use tool with 44 in Ibs torque setting for metal fittings and 2 turns passed finger tight for plastic elbow CAUTION Prior to installing heat exchanger tubing into push lock fitting ensure that any sharp edges are removed to avoid cutting the O ring and generating a leak 6 5 11 Installation is the reverse Route the compressor capacitor leads under the center frame as the compressor is brought into position This will make it easier to attach them later Add Zip Ties where previously removed 6 5 12 When installing spring mounts position the rubber step washer between the compressor and the spring and ensure the springs are fully seated in the cup recess on the base Chart SeQual Technologies Inc Page 28 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concent
35. nto the barb aids in the loosening the connection Loosen and remove the tubing from its fitting by gently pulling on the tube and twisting simultaneously Hold the sensor by its body when twisting and pulling the tubing CAUTION When pulling the tubing off the oxygen sensor it must be firmly held by its body to prevent the sensor from detaching from the board When pulling the tubing from the flow control valve hold the valve by its body and pull the tubing out Chart SeQual Technologies Inc Page 24 of 34 P N 2917 SS S Service Manual E UAL Integra E Z Oxygen Concentrators 6 3 1 5 Remove Qty 6 small Phillips style screws securing the PCBA to the front panel save for reinstallation 6 3 1 6 Carefully lift off the Circuit Board do not slide off due to buzzer and LCD components mounted on the underside of the board and place into appropriate ESD packaging NOTE Place the removed board in the Anti static bag of the replacement board that was received 6 3 1 7 Installation is the reverse of the removal with the addition of a leak test see section 6 11 2 Install Zip Ties where the tubing was removed from the fitting barbs CAUTION Do not over tighten screws 20 Silicone Tube secured on one end with Cable Tie 6 3 2 Leak Test 6 3 2 1 Required Materials A T fitting tubing pressurized gas source and a gauge will be needed A pressure gauge Marsh model J9040 or equivalent with minimum characteristic
36. on 2 6 3 and if this feature is disabled and the battery is drained the unit will not be able to alarm in the event of a power failure 5 1 4 Flashing YELLOW LED No alarm 5 1 4 1 O0xygen flow rate being measured and controlled by the Integra E Z doesn t agree with flow set on the front panel by more than 10 If alarm persists check for kinked or blocked tubing inside or outside the unit or for leaks between the flow meter and the control valve For further investigation check to see if the flow control valve is stuck in the open or closed position or doesn t adjust the flow 5 1 5 OM Models YELLOW LED illuminated Concentration is below 85 5 1 5 1 Check flow rate setting flow set too high will reduce concentration Allow 5 minutes for flow to stabilize at lower setting green LED should illuminate 5 1 5 2 Filter clog check cabinet inlet filter and compressor inlet filter refer to Routine Maintenance section Chart SeQual Technologies Inc Page 16 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 5 1 5 3 Unit out of calibration perform concentration check 5 1 5 4 Unit overheating efficiency of the adsorption process is reduced if cabinet temperatures are elevated Ensure adequate ventilation refer to the Operation and Set up section 5 1 5 5 Compressor worn check compressor output 5 1 5 6 ATF worn check unit with another equivalent ATF 5 1 6 OM Models Red LED Flashing Stea
37. or button again or it will exit by itself after 10 seconds 2 6 1 Checking Hourmeter provider use only After entering Service Mode use the or buttons to scroll through the options until the hourmeter reading is displayed HXXXXX X 2 6 2 Checking Battery Level provider use only After entering Service Mode use the or buttons to scroll through the options until the software revision displayed 5 Solid Bars Full Battery and 0 Solid Bars Depleted Battery Recommended battery replacement at 2 Solid Bars See Maintenance Section 2 6 3 Enable or Disable Battery Level Alarm provider use only After entering Service Mode use the or buttons to scroll through the options until the battery symbol is displayed If the battery alarm 1s disabled you will see a D this is how the unit is shipped from the factory If the battery alarm is enabled you will see an E To change the alarm status press only the Hidden Switch while in Service Mode The Battery Alarm will be triggered at 2 Solid Bars 2 6 4 Checking Software Revision provider use only After entering Service Mode use the or buttons to scroll through the options until the software revision displayed SW X XX Chart SeQual Technologies Inc Page 10 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 3 Maintenance Routine Maintenance Routine maintenance consists of cleaning t
38. parts touch and re secure the velcro loop strap 3 2 2 2 In addition ensure the free end of the PVC Tubing is on the compressor Air Inlet Fitting barb NOTE The most common cause of low concentration and eventual system failure is a dirty or clogged compressor inlet filter The environmental conditions in which the unit is operated determine the effective filter life Muffler Attached to Center Frame PVC Tubing attached to Muffler Loop Strap securing filter to muffler Chart SeQual Technologies Inc Page 12 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 3 2 2 3 Verify proper oxygen concentration refer to spec chart pg 31 32 or 33 The concentration should be a minimum of 88 at maximum rated flow Refer to the troubleshooting section if this concentration is not met While monitoring the concentration verify that the LED s function properly on OM equipped units during start up 3 2 2 4 Clean inside the unit as needed using a small vacuum cleaner to remove any accumulation of dust or debris prior to attaching the covers 3 2 3 Replace the HEPA filter once every 12 months Annually or when visibly dirty 3 2 3 1 Remove the existing clamp or cut off the existing cable tie on one side of the HEPA filter 3 2 3 2 Disconnect tubing from both sides of HEPA filter 3 2 3 3 Plug in new HEPA filter Note If new HEPA filter still shows IN on input and OUT on output or an arrow s
39. pressor Malfunction Audible Alarm Indicators Excessive Internal Temperature Outlet Pressure 35 36 psig 241 2 248 1 kPa relief valve Abnormal Oxygen Flow Rate gt 30 target flow Low Therapeutic Oxygen Output lt 70 oxygen Back up Alarm Power 9V Battery Cabinet Air Inlet Compressor Inlet and HEPA Device Classification IEC Class II Type BF Applied Part Continuous Operation Temperature 4 F 20 C to 140 F 460 C Humidity Up to 95 7 ee psig HPs 10 0 LPM Flow Indicator 1 psig 7 kPa 10 0 LPM Nominal Temperature 50 F to 104 F 10 C to 40 C Independent of OSCI Operation Atmospheric Pressure 85 3 and 70 5 oxygen concentration measurement accuracy Where equipped Subject to 3 system concentration accuracy and for backpressures up to 7kPa Where equipped Subject to 5 system concentration accuracy and for backpressures up to 7kPa Outlet pressure may decline to 5 0 psig 34 5 kPa nominal at 10 000 ft altitude System performance may decline above 10 000 ft 3048m Chart SeQual Technologies Inc Page 33 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 10 Part Numbers 10 1 Preventive Maintenance Parts 9V Battery 8098 SEQ Annual PM kit including filters 9V 4542 SEQ battery GAST Compressor Rebuild Kit 3197 SEQ Thomas Compressor Rebuild Kit 3418 SEQ 10 2 Recommended Spare Parts Inventory 10LPM only Compressor kit Assembly 3762 SEQ ATF
40. r oxygen flow control flow rate indication and various monitoring functions depending on model The oxygen outlet port is equipped with a DISS fitting for connection of appropriate accessories such as a humidifier cannula etc 1 5 2 Electrical A two prong plug can be inserted into any standard outlet of the appropriate voltage All Integra E Z concentrators are double insulated and require no grounding WARNING Do not modify or otherwise tamper with the electrical harness or attached components without the express written consent of SeQual Technologies Doing so could result in the loss of double insulation protection and create a potential hazard Line voltage is connected to a printed circuit board mounted in the POD assembly Transformers on the board reduce line voltage to low voltage for circuit board control flow Chart SeQual Technologies Inc Page 5 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators control and monitoring functions Circuit traces route power to the cooling fan ATF gear motor and compressor WARNING Line voltage is present at the circuit board at all times when the unit is plugged into a wall outlet Unplug the concentrator prior to performing maintenance or repairs in this area CAUTION Do not touch or attempt removal of the circuit board without ensuring that all Electro Static Discharge ESD procedures and controls are in place Damage to components on the printed
41. r to service Always apply voltage to the gear motor assembly prior to introducing airflow to the ATF Check that the shaft visible on the top of the gearbox is rotating Some grease run out in this area is typical especially in units that have had long continuous service Wipe the area and mark the drive shaft with a marker to assist in detecting rotation Minor gear mesh noise 1s acceptable but any inconsistent jerky or intermittent motion is not normal Rotation should be smooth Always cap or plug the ATF oxygen outlet and air inlet ports when it is not installed or when the hoses are removed Even short duration exposure to moisture laden air can have an adverse effect on ATF performance Never operate an ATF beyond its rated flow capacity Ensure that the Integra flow selector knob or an external flow meter properly limits the product flow rate An ATF designed to deliver 5 liters per minute LPM of flow will rapidly suffer performance loss if operated at 6 LPM Within a short period of time this performance loss can become permanent Never apply compressed air flow to an ATF with a damaged missing or malfunctioning gear motor assembly Even a few minutes of flow without valve rotation can severely and permanently damage the module Chart SeQual Technologies Inc Page 4 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 1 4 Basic Mechanical Layout The Integra E Z family of oxygen concentrators share
42. rators 6 5 13 6 5 14 6 5 15 6 5 16 6 5 17 6 5 18 6 6 6 6 1 6 6 2 6 6 3 6 6 4 Ensure the rubber washer of the compressor shoulder bolt is positioned between the base and the steel washer Apply Loctite 271 or equivalent to the threads of the shoulder bolt prior to installation Torque shoulder bolts to 31 inch pounds CAUTION Thread locking compounds may soften plastics Do not apply excessive thread locker to the bolts Do not allow the thread locker material to remain in contact with plastic parts if spilled or dropped Clean any affected area with isopropyl alcohol Install the compressor bolt inspection covers Tighten the screws only as required to seat them against the plate Attach the capacitor leads and reconnect the two pin power plug Close the center frame wire harness clamps around the complete harness by pressing the enclosing loop firmly into the seat CAUTION Carefully inspect the completed wire routing to ensure that the compressor wires do not interfere with the cooling fan operation N Confirm Zip Ties are installed If the cooling fan is blocked or prevented from turning the unit will overheat and shut down after approximately fifteen minutes of operation Re install the clear air feed tube to the barb on the compressor Re attach the hose to the heat exchanger barb fitting and tighten clamp to 70 inch ounces Start the unit and check for leaks If compressor is noise refer to section 5
43. replaced Warning Ensure the unit is unplugged before testing this operation Warning Use a glove or similar hand protection to rotate the fan the plastic edges can be sharp and cut your hand Check for damage to the traces on the circuit board Failure of an internal component can cause excessive power draw This will typically result in burn marks adjacent to the eight pin connector that can be observed with the back cover removed Contact SeQual Customer Service for assistance Unit does not produce adequate oxygen flow Check to verify that the target flow set point 1s correct Check for a blocked humidifier bottle 1f one is being used Tip Remove for testing Check for external kinked flattened or blocked tubing or accessories remove accessories from DISS fitting and see if adequate flow is coming out of the DISS fitting Remove covers and check for internal kinked flattened or blocked tubing Check the inside of the unit for loose or disconnected tubing Check for operation of the flow control valve open and close the valve by pushing the and buttons and look for or feel the valve moving stepping Check for air flow blockage in elbow muffler connection Replace muffler if necessary Unit starts but shuts down after a short period of operation Re start the unit and check for adequate airflow refer to Operation and Set up Check for cooling fan operation Air should be blowing out of the bottom of the cabi
44. rm Verification Test Verify the Alarm Indicators buzzer and lights are functioning properly by confirming the proper start up sequence for the unit per sections describe below Start up Sequence OM units On initial start up Integra E Z units light the Green Yellow and Red LED s with a 3 second beep followed by an intermittent beep for the remainder of the warm up As concentration increases to 70 the Red LED turns off and the Yellow and Green remain on When the concentration reaches normal operating range above 85 the Yellow LED will turn off as well as the intermittent beep The Green LED will stay lit indicating normal operation The Chart SeQual Technologies Inc Page 14 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 4 3 2 table on the next page shows the normal start up operating conditions for Integra E Z Oxygen Concentrators Start up Sequence Non OM units Non OM Integra E Z units start up with the Green Yellow and Red LED s lit and a 3 second beep indicating all alarms indicators are functioning followed by the green LED turning on The table below shows the normal start up operating conditions for Integra E Z Concentrators Flow Rate Audible Unit Operatine Condition Shown Alarm State P 8 On for 3 Started Unit is Starting seconds Running Periodic Beep Unit is warming up Periodic Runni Beep 8 Normal Operating Periodic Unit turned efor Po for Ee On Oft On Quickly Ru
45. s of 15 psi range 0 5 psi scale subdivisions and 4 dial can be used Bottled air nitrogen or oxygen from the outlet of another concentrator can be used to supply the test pressure CAUTION After PCBA installation a test 1s required to verify that no leaks were caused during rework Leaks in the system can cause premature concentrator failure Chart SeQual Technologies Inc Page 25 of 34 P N 2917 SS S Service Manual E UAL Integra E Z Oxygen Concentrators 6 3 2 2 Setup and test Step 1 Plug the outlet side of the DISS fitting Step 2 Connect the tube originally connected to ATF to oxygen or nitrogen gas at 10 1 psig Step 3 Using a pressure gage with 0 15 psig range verify the system is pressurize to 10 1 psig Step 4 Once the system is pressurized shut the supply valve on the pressure source Step 5 Start timing for 60 seconds Step 6 Verify that the pressure did not drop more than 1 8 psig for the 60 second test NOTE If a leak is found check the connection at which tubing was removed and reconnected Repair of the leak can be done by cutting 2 of tubing and reconnecting so tubing sealing will be re established Repeat the test Plug outlet amp apply pressure Showing the outlet blocked using a cap Apply 10psig gas pressure POD Leak test for Integra E Z Plugged DISS outlet N PVC tube to ATF Once the assembly passes the leak test install the POD following guidance from Section 6
46. s the same basic components and layout consisting of the compressor ATF module and POD assembly These components are mounted to the base and center frame and are housed in a two piece cover Although the plastic components are common to all the Integra E Z concentrators refer to the appropriate model data sections concerning parts replacement The Integra E Z Oxygen Concentrator is manufactured in the following variations FINTEGRAE ZSEPM AERO ONTEGRAEZSLPMOM 6BAOMEURO wecraezrem ezar O INTEGRA E Z7LPMOM 6323A OM 7 BEEN INTEGRA E Z 10 LPM 6323A 10 6323A 10 EURO INTEGRA E Z 10LPM OM 6323A OM 10 6323A OM 10 EURO User Controls are located on the front panel of the POD assembly On Off button Plus and Minus flow rate control buttons Service button located behind the No Smoking logo and the Flow Indicator LCD display 1 5 Theory of Operation 1 5 1 Air Product flow Ambient air is pulled in through the cabinet inlet filter A cooling fan in the base expels hot air through an opening in the bottom of the case The compressor inlet filter and muffler assembly mounted on the center frame above the compressor provides sound suppression and filtered air to the compressor via a clear feed tube Compressed air from the compressor runs through a heat exchanger coil and into the inlet barb of the ATF module Oxygen from the product barb is routed to the pod assembly The POD assembly provides electrical powe
47. sssessesssssccsccccccccccccccceasssssssseees 24 6 4 Removal and installation of the ATF modulle ccccccccccssssssnsssnsnssssessssccccccccccccccccccssssssssssscececccccececsseasssssseseees 26 6 5 Removal and installation of the Compressor ASSCMDLYy 1 sssssscsccccccccccccccssssssssssssssssssseeccecccceccccsesssssssessees 27 66 Compressor Top ER rebuild ao SE EEN Slane 29 7e INTEGRA E ZSLCSPECIFICATION S LEE Ea E A 31 5 INTEGRA E Z 7LCSPECIFICATIONS masei henseende needed aaa eaaa aoa ao aeaa saada serea eaea asio ra 32 9 INTEGRA E Z 10L SPECIFICATIONS cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccceccs 33 10 PART NUMBERS aoa a a A e a a e Taea a NETE E 34 10 1 Preventive Maintenance PATS vimiscasecksicercewiiausaersesvseudiverccdasendsewsdueiesiasenvieodicesseiesausdeed soesesve venadecdseeveeceosuadcaaseseees 34 10 2 Recommended Spare Parts Inventory ssssssssssssssssssssssseeeeeecososssssssssseeeeeeeocosssssssssseeeeeeeooooossssssseseeeeeeeeoosssssssses 34 11 SEQUAL ADDRESS AND WEBSITE INFORMATION ccccscsccccccsssscscsccccccccssscscccccccccsssscsccccccccssccsccccceeeess 35 Chart SeQual Technologies Inc Page 2 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators 1 Introduction SeQual Chart SeQual Technologies Inc 1 1 Explanation of Terms WARNING Indicates the possibility of injury to the patient operator or techni
48. t accessories are attached to the oxygen concentrator The OM models also incorporate circuitry on the printed circuit board which are used in conjunction with the ultrasonic measurement flow tube and uses the timing of the speed of sound in the gas mixture to calculate the percentage of oxygen present in the gas stream A timing circuit on the board prevents the low oxygen alarm from sounding during the warm up cycle a maximum of 10 minutes The Integra E Z oxygen concentrator does not utilize a conventional circuit breaker A separate current sense transformer mounted on the printed circuit board continuously monitors the current being drawn by the compressor This sensing feature will turn off the concentrator to prevent excessive current draw in the event of a component failure or other abnormal high demand condition There is nothing to reset Once the unit detects the abnormal power condition it will shut down and alarm The user will only need to turn off the unit and turn it back on and assuming the power has returned to normal and there is no additional fault it will Chart SeQual Technologies Inc Page 6 of 34 P N 2917 S Service Manual E UAL Integra E Z Oxygen Concentrators start running In addition the Integra E Z has two fuses The primary fuse F2 service technician replaceable fuse see Section 10 for spare parts is used as a back up to the current sensing system and will prevent excessive current draw by the compr
49. wn unit and install covers Removal and installation of the Compressor Assembly Unplug unit from the AC power source Confirm that Flow Indicator Backlight is off Remove the covers Remove the electrical leads to the capacitor Remove the air supply hose from the filter muffler assembly by pulling it off the barb fitting on the compressor Open the lower two wire harness clamps on the center frame by pushing down against the short tab and pulling open the enclosing loop Disconnect the two pin connector shown in the illustration CAUTION Depending upon the date of manufacture one or more cable ties N may attach the compressor leads to the wire harness Carefully check for these additional cable ties during the remainder of this procedure Remove as required and replace when assembling back Disconnect the hose from the heat exchanger using red tubing quick disconnects Lay unit on side with the heat exchanger coil facing up Support the compressor with a foam block or other device Remove the two compressor bolt inspection covers attached to the base to expose the compressor bolt heads Chart SeQual Technologies Inc Page 27 of 34 P N 2917 SS S Service Manual E UAL Integra E Z Oxygen Concentrators 6 5 8 Remove the 4 compressor bolts NOTE The spring mounts will be loose at this point Use care in hardware removal to avoid loss of parts 6 5 9 Compressor may now be pulled clear of unit Check all wire routing while removing to e
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