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Chapter 3

Theory of Operation

REF 580-1000-02 G

Esprit® Ventilator Service Manual © Respironics, Inc.

3-9

Ventilator System

Electronics

Figure 3-3 shows the electronic system. Schematics are available upon
request.

Figure 3-3: Electronic System Diagram

The ventilator can be powered by a 100 to 240 VAC 50/60 Hz or external 24 V
DC power sources (Backup Battery or External Battery). The power supply
conditions the input voltage and distr5 V, +12 V, -12 V, and +29 V to
the main PCB and blower motor controller to power digital electronics,
electropneumatic components, and displays. AC power to the humidifier port
can be used on 100-120 V units only.

The microprocessor on the CPU PCB and programs stored in memory control
the interaction of the pneumatic and electronic subsystems. Using inputs from
electropneumatic sensors and the operator, the CPU controls the flow,
pressure, and volume of air and oxygen to be delivered to the patient. The CPU
also monitors alarms and independently monitors software execution.

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Summary of Contents for ESPRIT

Page 1: ...REF 580 1000 02 G ESPRIT Ventilator S e r v i c e M a n u a l ...

Page 2: ...ited States copyright law without the prior written consent of Respironics Copyright 2004 2007 Respironics Inc All rights reserved For Technical support contact Respironics Inc Customer Service Within the U S A 1 800 345 6443 Outside the U S A 724 387 4000 Facsimile 724 387 5012 service respironics com United States of America Respironics California Inc 2271 Cosmos Court Carlsbad CA 92011 USA 1 80...

Page 3: ... PCB 3 13 Blower Controller PCB 3 13 Motor Controller PCBs 3 14 Sensor PCB 3 14 Man Machine Interface MMI PCB 3 15 Power Supply 3 15 Backlight Inverter PCB 3 15 Real Time Clock Battery 3 15 Backup Battery 3 15 External Battery 3 16 DC DC Converter PCB use with original 10 4 in displays only 3 16 Optical Rotary Encoder 3 16 Graphic User Interface GUI 3 16 Remote Alarm Nurse Call 3 17 4 Periodic Mai...

Page 4: ...ety Valve and Safety Solenoid 5 20 Pressure Relief Valve 5 21 Crossover Solenoid 5 22 Exhalation Flow Sensor 5 23 Check Valve 2 5 24 Check Valve 3 5 25 Check Valve 4 5 25 Filter Heater 5 26 Blower 5 26 Inhalation Exhalation Pressure Transducers and Exhalation Valve 5 27 Oxygen Pressure Switch 5 29 External Oxygen Sensor 5 29 Sensor PCB Voltage Indicators 5 29 Bacteria Filter Back Pressure Test 5 3...

Page 5: ...8 20 PEEP System Test 6 8 21 Breath Rate Test 7 8 24 Alarm Analog Output Signals Alarm Volume and Remote Alarm Test 8 8 25 Gas Volume Accuracy Test 9 8 28 Oxygen Accuracy Test 10 8 31 Heated Exhalation Bacteria Filter Power Fail Alarm and Display Intensity Test 11 8 34 Neonatal Option Testing Test 12 8 36 Backup Battery and External Battery Test 13 8 38 Returning Ventilator to Operation 8 40 Perfo...

Page 6: ...n GUI 9 23 Intensity and Volume Potentiometers 9 5 in GUI 9 25 Intensity and Volume Potentiometers 10 4 in GUI s 9 26 Rotary Encoder 9 5 in GUI 9 27 Rotary Encoder 10 4 in GUI s 9 28 GUI Front Panel Overlay 10 4 in GUI s 9 29 VGA Display Assembly 9 5 in GUI 9 30 Touch Screen LED Indicator Assembly and Front Panel Overlay 9 5 in GUI 9 31 Backlight Inverter PCB VGA Display and Touch Frame Original 1...

Page 7: ...r Muffler Assembly 9 77 Cooling Fan Cooling Coil Assembly 9 79 GUI Upgrades 9 81 Replacing the GUI 9 5 in to original 10 4 in 9 84 Installing the CPU and DC DC Converter PCBs 9 87 Downloading Ventilator Software 9 87 Calibrating the Screen 9 88 Enabling Options 9 88 Final Checkout 9 88 Replacing the GUI 9 5 in to 2nd Generation 10 4 in 9 88 Installing the CPU PCB 9 90 Downloading Ventilator Softwa...

Page 8: ...est 2 Step 1 A 5 Safety Valve Test 2 Step 2 A 6 Blower Test 3 Step 1 A 7 Blower Test 3 Step 2 A 8 Oxygen Supply Test 4 Step 1 A 9 Oxygen Supply Test 4 Step 2 A 10 Crossover Circuit Test 5 Step 1 A 11 Crossover Circuit Test 5 Step 2 A 12 Crossover Circuit Test 5 Step 3 A 13 Oxygen Delivery Test 6 Step 1 A 14 Oxygen Sensor Test 7 Step 1 A 15 Air Delivery Test 8 Step 1 A 16 Pressure Relief Valve Test...

Page 9: ...have received appropriate training and authorization to provide maintenance repair and service for the Esprit Ventilator Review the Esprit Ventilator Operator s Manual and become familiar with Esprit Ventilator operation before running tests checking operational readiness or initiating patient use The operator s manual includes important information about ventilator safety and operation Schematic ...

Page 10: ...equivalent Adapter USB to serial Respironics P N 1022895 Analog output port signal selector Respironics P N 1010891 Esprit Service kit included in the kit Respironics P N 1021670 Cable nurse call test Respironics P N 1001375 Test adapter O2 regulator Respironics P N 1001376 Cork silicone Respironics P N 1001735 or equivalent Adapter parallel port Respironics P N 1004644 Test lung 1 liter Respironi...

Page 11: ...en end wrench Local supplier 9 32 in socket wrench with removable 6 in extension bar Local supplier 3 16 in open end wrench or socket wrench Local supplier 5 5 mm open end wrench Local supplier 7 mm open end wrench Local supplier 8 mm box ratchet Local supplier 10 metric open end wrench Local supplier 10 metric socket wrench Local supplier Angled tweezers Local supplier Wire cutters Local supplier...

Page 12: ... Measurement Range Accuracy Pressure 25 to 150 cmH2O 0 to 100 psi 1 of reading or 0 20 cmH2O whichever is greater 2 of reading 1 to 38ºC 30 to 100ºF Flow standard 0 to 300 SLPM 2 of reading 0 20 SLPM whichever is greater Torque 5 to 25 in lbs 1 in lbs of reading Volume STP 0 to 10 L STP 2 of reading 0 20 L STP Voltage DC 5 to 50 V AC 2 to 300 V 2 of reading ...

Page 13: ...tilator in the presence of flammable anesthetic agents CAUTION Troubleshooting and repair should be performed only by a qualified service technician Respironics Esprit Factory Service Training is highly recommended prior to performing service procedures on the Esprit Ventilator Contact Customer Service at 1 800 345 6443 or 724 387 4000 for more information CAUTION Use only Respironics Esprit repai...

Page 14: ...nics Inc REF 580 1000 02 G Warnings and Cautions CAUTION Always ensure that you are following proper electrostatic discharge ESD grounding procedures before handling static sensitive devices CAUTION Be careful not to pull or crimp any cables tubes or wires ...

Page 15: ...tor are available upon request Pneumatic System The Esprit Ventilator pneumatic system consists of these subsystems see Figure 3 1 Internal blower air source Oxygen regulator oxygen source Inspiratory module Heated exhalation filter assembly Exhalation valve assembly Expiratory flow sensor The internal blower generates the air pressure necessary for breath delivery eliminating the need for an exte...

Page 16: ...ces the relative moisture condensation in the exhalation filter exhalation valve and expiratory flow sensor Exhaled gas is then vented to atmosphere Figure 3 1 Pneumatic System Block Diagram Figure 3 2 shows the Esprit ventilator pneumatic system and its components Figure 3 2 Pneumatic Schematic Blower Oxygen Regulator Inspiratory Module Gas Mixing Pressure Relief Valve Safety Valve To Patient Fro...

Page 17: ...livery System Components Blower Inlet Filter F1 The blower inlet filter removes coarse particulate from ambient air as it is entrained into the blower assembly See section 4 for periodic maintenance information Cooling Fan Filter The cooling fan filter removes coarse particulate from ambient air entrained by the cooling fan See section 4 for periodic maintenance information Muffler Silencer The mu...

Page 18: ...or measures the temperature of the air and provides the microprocessor with information to compensate the delivered flow Oxygen Inlet Connector O2 The oxygen inlet connector provides a country specific connection point for an external oxygen gas supply of 40 to 90 psig 276 to 620 kPa Oxygen Water Trap Inlet Filter Assembly F2 The oxygen water trap inlet filter assembly consists of a 5 micron µ fil...

Page 19: ...d during normal ventilation In its normal state SOL1 is normally de energized to pilot the safety valve with oxygen If oxygen pressure is lost SOL1 is energized and air rather than oxygen controls the safety valve Check Valve CV5 The cross contamination check valve prevents the oxygen supply from entering the air delivery system pneumatics blower in the event of a crossover solenoid leak Inspirato...

Page 20: ...RV The pressure relief valve provides a backup to the operator adjustable high pressure alarm and prevents excessive pressures in the patient circuit The PRV is spring loaded to limit the maximum circuit pressure to 130 to 140 cmH2O Oxygen Sensor OS The oxygen sensor is an optional device that can be installed between the 22 mm inspiratory port and the inspiratory bacteria filter The oxygen sensor...

Page 21: ...alation flow sensor and exhalation system components from condensation by heating exhaled gas which has cooled in the exhalation limb above the dew point The exhalation bacteria filter protects the exhalation flow sensor and exhalation system component from contaminants and filters exhaled gas before it is vented to atmosphere Exhalation Pressure Transducer PT2 The exhalation pressure transducer o...

Page 22: ...ystem to pressurize The exhalation valve opens at the beginning of exhalation allowing system pressure to vent to atmosphere The exhalation valve also regulates positive end expiratory pressure PEEP and expiratory positive airway pressure EPAP levels during exhalation Exhalation Flow Sensor FS3 The exhalation flow sensor measures the flow leaving the ventilator This flow includes gas exhaled by th...

Page 23: ...s the input voltage and distributes 5 V 12 V 12 V and 29 V to the main PCB and blower motor controller to power digital electronics electropneumatic components and displays AC power to the humidifier port can be used on 100 120 V units only The microprocessor on the CPU PCB and programs stored in memory control the interaction of the pneumatic and electronic subsystems Using inputs from electropne...

Page 24: ...PCB digital PCB CPU PCB 29 V Enable Main PCB CPU PCB power supply Air AV oxygen OV exhalation EV valves Main PCB motor controller PCB CPU PCB Air FS1 oxygen FS2 exhalation FS3 flow sensors Sensor PCB main PCB analog PCB CPU PCB Alarm High Indicator Front panel overlay MMI PCB main PCB CPU PCB Alarm Med Low Indicator Front panel overlay MMI PCB main PCB CPU PCB Alarm Silence Indicator Front panel o...

Page 25: ...xygen Sensor OS Sensor PCB main PCB analog PCB CPU PCB Oxygen supply pressure switch PS1 Sensor PCB main PCB digital PCB CPU PCB Primary Alarm MMI PCB main PCB digital PCB CPU PCB Primary alarm potentiometer MMI PCB Printer Main PCB CPU PCB Remote alarm nurse call Main PCB CPU PCB Rotary encoder MMI PCB main PCB digital PCB CPU PCB Safety Valve indicator Front panel overlay MMI PCB main PCB CPU PC...

Page 26: ...n trigger the remote nurse call alarm Interface connectors on the main PCB include the RS 232 parallel printer analog output and remote alarm connectors Other signals routed by the main PCB are the reset MMI PCB reset sensor PCB reset primary alarm primary alarm failure detection logic backup alarm remote alarm printer POST timer clocked serial interface CSI signals and the battery backed 3 6 V CP...

Page 27: ...B The digital PCB conditions serial port signals coming from and going to the CPU PCB It also contains control circuitry for the power fail alarm primary alarm backup alarm RS 232 port and rotary encoder Digital inputs include analog to digital converter ADC out of range compressor temperature switch and oxygen present Digital outputs include the alarm silence indicator 100 oxygen indicator runnin...

Page 28: ...pneumatic components and the power supply into digital signals for the CPU Signals include air flow and temperature oxygen flow and temperature exhalation flow and temperature inspiratory and exhalation pressure battery voltage FIO2 enclosure temperature and enclosure oxygen concentration The sensor PCB conditions blower speed analog input and the on off control to the blower controller PCB and ro...

Page 29: ...c and charging circuitry for the backup battery Backlight Inverter PCB For 9 5 in displays the backlight inverter PCB converts 5 V to approximately 500 V to drive the backlight on the VGA display assembly For original 10 4 in displays the backlight inverter PCB converts 12 V to approximately 500 V to drive the backlight on the VGA display assembly For 2nd generation 10 4 in displays the backlight ...

Page 30: ... mechanical position into a representative electrical signal using a patterned disk or scale a light source and photosensitive elements Graphic User Interface GUI Esprit ventilators include a 9 5 in monochrome or 10 4 in color capable liquid crystal display LCD screen The 9 5 in LCD is a monochrome 640 x 480 active matrix display The 10 4 in LCD is a color 640 x 480 active matrix display capable o...

Page 31: ...the ventilator is off CAUTION The remote alarm port is intended to connect only to SELV safety extra low voltage and ungrounded system with basic insulation to ground in accordance with IEC60601 1 To prevent damage to the remote alarm the signal input should not exceed the maximum rating of 24 VAC or 36 VDC at 500mA with a current of 1mA Figure 3 4 Remote Alarm Nurse Call Connector For ventilators...

Page 32: ...Chapter 3 3 18 Esprit Ventilator Service Manual Respironics Inc REF 580 1000 02 G Theory of Operation This page is intentionally blank ...

Page 33: ...lly with both filters in place At least daily and as recommended by filter manufacturers Inspiratory and expiratory filters Monitor performance of filters and replace as needed Review ventilator patient graphics frequently for changes in expiratory resistance which may indicate degradation of expiratory filter Follow filter manufacturer recommendations regarding duration of use maintenance for reu...

Page 34: ...erformance verification procedure CAUTION The annual preventive maintenance procedure is to be performed only by a qualified service technician 12 500 hours 12 500 hour preventive maintenance kit P N 1001733 Kit contents are subject to change Install 12 500 hour preventive maintenance kit Clean ventilator interior and exterior Complete performance verification procedure CAUTION The 12 500 hour pre...

Page 35: ...tor pneumatic components and voltages for troubleshooting Check bacteria filter resistance The diagnostic mode includes hardware diagnostics that facilitate troubleshooting in the event of an SST failure an EST failure or a performance verification failure WARNING Diagnostic mode suspends normal ventilation disconnect the patient from the ventilator before entering diagnostic mode CAUTION Troubles...

Page 36: ...nds while turning ventilator power on At the prompt touch OK to enter diagnostic mode Figure 5 1 Figure 5 1 Entering Diagnostic Mode User Configuration The user configuration screen Figure 5 2 allows you to Change the date and time Enable or disable the automatic patient circuit compliance compensation feature Set the proper altitude To view the user configuration screen touch User Config on the d...

Page 37: ...meter if available or estimate altitude in feet or meters above sea level 2 Touch Altitude 3 Touch the Increase or Decrease bar or turn the knob to adjust the value 4 Press Accept WARNING Reenter the appropriate altitude setting whenever upgrading software The altitude setting reverts to the default setting 9999 feet displayed as at every software upgrade Compliance Enable The ventilator can use c...

Page 38: ... powers on it searches for a backup battery If the backup battery is connected to the ventilator the startup is normal If the backup battery is not connected then the ventilator displays a message at startup and a 5002 Diagnostic Code will be logged Figure 5 4 No Backup Battery Connected message Short Self Test SST SST verifies the integrity of the patient circuit tubing by measuring its leak rate...

Page 39: ...o the ventilator 2 Touch SST on the diagnostic screen Figure 5 5 3 Touch Start SST to begin the test 4 When prompted unblock the wye and touch OK 5 When prompted block the wye and touch OK 6 When SST is completed successfully touch OK The SST screen shows the results of each test Diagnostic code 2000 indicates that SST was successfully completed If any SST tests fail the screen displays failure da...

Page 40: ...risk WARNING Never initiate an EST while the patient is connected to the ventilator The high airway pressures and gas flows generated during EST can injure a patient EST requires this equipment Reusable adult patient circuit assembly Rubber cork Regulated oxygen source Optional an external oxygen sensor to perform the automatic oxygen sensor test and calibration Optional a remote alarm Follow thes...

Page 41: ...s the primary audio alarm active touch the YES key if the alarm is sounding or NO if it is not 13 At the message Is the backup audio alarm active touch YES if the alarm is sounding or NO if it is not 14 At the message Is the remote alarm connected touch YES if it is or NO if it is not 15 At the message Is the remote alarm active touch YES if the alarm is sounding or NO if it is not 16 Observe LEDs...

Page 42: ... programmable OTP software Version of the air stepper valve oxygen stepper valve exhalation stepper valve and display Air oxygen and exhalation flow sensor part numbers Options installed if any Figure 5 7 Diagnostic Mode Software Screen Diagnostic Codes The Esprit Ventilator generates diagnostic codes when the microprocessor detects a fault during normal operation or if a failure occurs during SST...

Page 43: ...ent code first 2 Code The number assigned to a specific failure which can help determine the cause of a failure The first digit of the four digit diagnostic codes indicates the type of fault 1xxx Failure during power on self test POST 2xxx Failure during short self test SST 3xxx Failure during extended self test EST 4xxx Continuous built in test failure failures during normal ventilation 5xxx Safe...

Page 44: ...icates that its validity is suspect 7 Next Pg and Prev Pg buttons The ventilator can log up to 20 error codes but can only display 10 on a screen Touch the Next Pg button to view the next group of codes or Prev Pg to view the previous group 8 Clear Codes button Allows you to delete diagnostic codes NOTE Diagnostic codes are the primary means of fault diagnosis and should only be deleted by a quali...

Page 45: ...0 to 200 LPM or step position from 0 to 2000 steps The Exhalation button controls the steps of the exhalation valve and allows you to open or close the exhalation valve from 0 fully open to 2000 fully closed steps Although the exhalation stepper motor can be commanded to 2000 steps a maximum of 1800 steps is displayed Voltage Control Hardware The Monitors button simulates voltages for pressure vol...

Page 46: ...e hardware screen provide real time feedback on various flows step positions pressures voltages and temperatures measured by the internal flow pressure voltage and temperature sensors Air Flow displays the measured flow passing through the air flow sensor Oxygen Flow displays the measured flow passing through the oxygen flow sensor Exhalation Flow displays the measured flow passing through the exh...

Page 47: ...d on the sensor PCB Acceptable voltage is between 0 52 to 0 62 V Voltage Wrap displays the ADC input voltage for comparison to the voltage wrap DAC output voltage Pneumatic Component Troubleshooting This section tells you how to perform component troubleshooting in case of a failure during SST EST or performance verification Perform these tests as needed rather than in consecutive order WARNING Tr...

Page 48: ...en Valve 1 Connect the oxygen source to the ventilator 2 Disconnect the bacteria filter patient circuit tube and oxygen sensor tee from the ventilator inspiratory outlet 3 Touch User Config and note the altitude 4 Touch Hardware 5 Touch Safety to energize white background the safety solenoid NOTE The sensor readings on an actual Hardware screen vary from those shown in Figure 5 10 6 Touch Oxygen a...

Page 49: ...Verify that the oxygen source is disconnected from the ventilator c Verify that Oxygen Supply reads OFF d Return the hardware screen to its initialized state Figure 5 10 Diagnostic Mode Hardware Screen Safety Solenoid Energized Oxygen Flow Sensor 1 Connect the oxygen source to the ventilator ...

Page 50: ...igure 5 11 Flow Sensor Troubleshooting Setup 3 Set the analyzer to read LPM 4 Set the analyzer s gas flow to oxygen 5 Touch Safety to energize white background the safety solenoid 6 Check that set oxygen flow corresponds to measured flow Touch Oxygen and Set the Flow to Check that Analyzer and Oxygen Flow Displays Read 5 LPM 4 5 to 5 5 LPM 10 LPM 9 to 11 LPM 20 LPM 18 to 22 LPM 50 LPM 45 to 55 LPM...

Page 51: ...ct the oxygen source to the ventilator 3 Use a pressure gauge capable of measuring 100 PSI and set the pressure range to 100 PSI Zero the gauge 4 Connect the gauge to the oxygen valve pressure port Figure 5 12 Figure 5 12 Oxygen High Pressure Connection 5 Touch Blower to de energize gray background the blower 100 LPM 90 to 110 LPM 120 LPM 108 to 132 LPM 165 LPM 148 5 to 181 5 LPM 0 LPM 0 0 1 LPM T...

Page 52: ...M and then back to 180 LPM d Check that the gauge still reads 23 1 PSI Repeat steps a to d if necessary 9 Disconnect the oxygen source from the ventilator 10 Return the hardware screen to its initialized state 11 Remove the gauge and reconnect tubing to the safety valve solenoid tubing connection Air Valve 1 Disconnect the bacteria filter patient circuit tube and oxygen sensor tee from the ventila...

Page 53: ... Safety to energize white background the safety solenoid 5 Check that set air flow corresponds to measured flow 6 Return the hardware screen to its initialized state Ventilator Altitude Setting Air Position Display 0 2000 ft 930 1215 steps 2001 4000 ft 910 1190 steps 4001 6000 ft 890 1165 steps 6001 8000 ft 875 1145 steps 8001 10 000 ft 855 1125 steps Touch Air and Set the Flow to Check that Analy...

Page 54: ...energize white background the inhalation solenoid 7 Check that the Inhalation Pressure display reads 0 0 1 cmH2O 8 Touch Exhalation to energize white background the exhalation solenoid 9 Check that the Exhalation Pressure display reads 0 0 1 cmH2O 10 Return the hardware screen to its initialized state Safety Valve and Safety Solenoid NOTE If pressure displays do not drop to 0 0 1 cmH2O cycle power...

Page 55: ...ead cmH2O 2 Connect the analyzer s positive low pressure port to the patient circuit Figure 5 13 Figure 5 13 Pressure Relief Valve Troubleshooting Setup 3 Touch Safety to energize white background the safety solenoid 4 Touch Exhalation and set it to 2000 steps 5 Touch Air and set the flow to 1 LPM 6 Check that the analyzer reads 130 140 cmH2O If not adjust the relief pressure Figure 5 14 ...

Page 56: ... the analyzer reads 130 140 cmH2O Repeat steps a to c if necessary 7 Return the hardware screen to its initialized state Figure 5 14 Pressure Relief Valve Hex Cap Crossover Solenoid 1 Disconnect the oxygen source from ventilator 2 Touch Oxygen and set the flow to 100 LPM then back to 0 LPM to relieve any trapped oxygen pressure 3 Connect patient circuit to ventilator and block wye with a cork 4 To...

Page 57: ...8 Remove cork from the wye 9 Touch Crossover to de energize gray background the crossover solenoid then block the wye 10 Check that the Inhalation Pressure display reads 0 0 1 cmH2O 11 Return the hardware screen to its initialized state Exhalation Flow Sensor 1 Connect the patient tubing from the ventilator to the high flow port of a calibrated analyzer Figure 5 15 Figure 5 15 Exhalation Flow Sens...

Page 58: ... 4 Touch Crossover to de energize gray background the crossover solenoid 5 Touch Blower to de energize gray background the blower 6 Touch Exhalation and set it to 2000 steps 7 Touch Oxygen and set flow to 1 LPM 8 Touch Air and set flow to 200 LPM 9 Check that Inhalation Pressure display on the hardware screen reads greater than 30 cmH2O 10 Check that the Air Flow display on the hardware screen rea...

Page 59: ...t the Oxygen Flow display on the hardware screen reads 0 0 1 LPM 10 Return the hardware screen to its initialized state Check Valve 4 WARNING To prevent contamination use two clean filters to perform this test WARNING If the ventilator has been operating the heater conductor may be hot 1 Install a new clean exhalation bacteria filter to the exhalation port of the ventilator 2 Connect an adult pati...

Page 60: ...ilter and verify that it is very warm to the touch 4 Reinstall the filter and heater 5 Return the hardware screen to its initialized state Blower 1 Connect a tube from the ventilator main outlet to the high flow port of pneumatic calibration analyzer Figure 5 16 2 Set the analyzer s peak continuous function to continuous 3 Set analyzer s gas flow to measure 180 LPM air Zero the analyzer 4 Touch Sa...

Page 61: ...tor Service Manual Respironics Inc 5 27 9 Return the hardware screen to its initialized state Figure 5 16 Blower Troubleshooting Setup Inhalation Exhalation Pressure Transducers and Exhalation Valve 1 Connect patient circuit with tee to the ventilator ...

Page 62: ...ead cmH2O 4 Touch Safety to energize white background the safety solenoid 5 Touch Exhalation and set it to 1470 steps 6 Touch Air and set the flow to 1 LPM 7 Touch Exhalation and adjust the steps until the analyzer pressure reads 100 5 cmH2O 8 Check that the Inhalation Pressure and Exhalation Pressure displays on the hardware screen read within 10 of the analyzer display 9 Unblock the tee and veri...

Page 63: ...n accuracy test section 8 Sensor PCB Voltage Indicators The sensor PCB includes LEDs Figure 5 16 that indicate under and over voltage conditions as summarized in Table 5 1 When the sensor PCB is installed the LEDs are near the power supply shroud Sensor PCB LED Voltage Condition Recommended Repair D3 Power Supply 12 V under Replace Power Supply D4 Power Supply 12 V under Replace Power Supply D5 Po...

Page 64: ...een 2 Use the default settings in the hardware screen EXCEPT Set an air flow rate of 100 LPM Energize the safety solenoid 3 Connect a tube from the main outlet to the bacteria filter inlet Important Do not connect anything to the filter outlet 4 The displayed Inhalation Pressure is the measured back pressure of the bacteria filter The back pressure for a new filter is typically 2 5 cmH2O A back pr...

Page 65: ...curs 1 Disconnect oxygen from the ventilator and wait 5 minutes to allow the internal oxygen percentage to stabilize 2 Power up the ventilator in diagnostic mode and touch the Hardware button to view the Hardware screen 3 Confirm that the Internal Oxygen display on the Hardware screen is between 0 52 to 0 62 V If the display is outside this range replace the sensor PCB ...

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Page 67: ...ore detailed they are described in Diagnostic Code 1012 Troubleshooting on page 6 24 and Diagnostic Code 5000 Troubleshooting on page 6 27 The first digit of the four digit diagnostic codes indicates the type of fault 1xxx Failure during power on self test POST 2xxx Failure during short self test SST 3xxx Failure during extended self test EST 4xxx Continuous built in test failure failures during n...

Page 68: ...e CPU PCB 1007 External RAM test failure Replace CPU PCB 1008 Maximum system resets exceeded ventilator has reset 3 times within 2 hours Review the diagnostics log the code in memory prior to the 1008 occurrence indicates the root cause 1009 POST inhalation autozero test failure Possible causes include crimped tube or transducer failure 1 Check for crimped tube between three station solenoid and t...

Page 69: ...onnection between the oxygen flow sensor and oxygen valve is tight 2107 Low inhalation pressure Patient circuit test test 11 this code indicates that circuit pressure dropped from 50 cmH2O to 45 cmH2O after exactly 100 ms 1 Check for patient circuit leaks 2 Verify that o ring is present in external oxygen sensor or bypass oxygen sensor 3 Check inhalation pressure transducer Chapter 5 4 Check the c...

Page 70: ... sensor and try another patient circuit 2 Rerun leak test while blocking exhalation flow sensor outlet If leak stops replace exhalation valve 3 Replace sensor PCB 4 Replace analog PCB 2130 Safety valve cannot open Safety valve test test 2 the exhalation valve is opened then closed to vent circuit pressure The safety valve solenoid SOL2 is then deenergized to open the safety valve and a 10 LPM air ...

Page 71: ...3 1 Enter diagnostic mode then turn ventilator off and on 2 Verify exhalation flow sensor cable connections 3 Replace exhalation flow sensor 4 Replace sensor PCB 5 Replace CPU PCB 6 Replace analog PCB 7 Replace main PCB 2137 Air flow sensor FS1 failure This code indicates that information stored on FS1 cannot be read 1 Enter diagnostic mode then turn ventilator off and on 2 Replace CPU PCB 3 Repla...

Page 72: ... 3 cmH2O or 3 cmH2O 1 Check inhalation autozero solenoid Chapter 5 2 Replace three station solenoid 3 Replace sensor PCB 4 Replace main PCB 2152 Patient wye not unblocked Block patient wye test 1 with the wye unblocked and the safety and exhalation valves closed a 25 LPM air flow should create a back pressure 10 cmH2O as measured by inspiratory pressure transducer PT3 This code indicates that PT3 ...

Page 73: ...ough the air valve as measured at the air flow sensor FS1 This code indicates that FS1 measured out of range flows 1 Check air flow sensor accuracy Chapter 5 Replace if necessary 2 Check air valve Chapter 5 3 Replace air valve assembly 4 Replace air motor controller PCB 3104 Oxygen flow out of range Oxygen delivery test test 6 flow rates of 0 and 3 LPM LPM 5 10 20 23 50 100 and 150 LPM 8 LPM are s...

Page 74: ...zero solenoid 5 Check for kinks or cuts in the tube between inhalation autozero solenoid and inhalation pressure sensor 6 Replace sensor PCB 7 Replace three station solenoid 3108 Exhalation pressure outside range Exhalation valve test test 10 the exhalation valve is set to deliver pressures of 0 5 10 and 20 cmH2O tolerance 2 cmH2O 30 cmH2O tolerance 3 cmH2O and 35 cmH2O tolerance 3 5 cmH2O as meas...

Page 75: ... connect or external regulator 3 Check oxygen pressure switch Chapter 5 4 Check oxygen regulator assembly Chapter 5 3112 Oxygen not disconnected Oxygen supply test test 4 the oxygen supply pressure switch PS1 is closed when oxygen is connected At the prompt to disconnect oxygen the oxygen valve opens and closes to relieve pressure and PS1 should be open This code indicates that PS1 remains closed ...

Page 76: ...crossover solenoid assembly 4 Replace main PCB 3118 Blower not turned off Blower test test 3 turns blower off and opens air valve Air flow sensor FS1 should measure flow less than 50 LPM within 20 seconds This code indicates that FS1 measured 50 LPM 1 Check blower Chapter 5 2 Replace blower controller PCB 3 Replace sensor PCB 4 Replace main PCB 3119 Blower DAC failure Blower test test 3 turns blow...

Page 77: ...test test 9 the oxygen flow sensor FS2 should measure a flow of 1 LPM This code indicates that FS2 measured 0 7 LPM or 1 3 LPM 1 Replace oxygen valve assembly 2 Replace oxygen flow sensor 3 Replace sensor PCB 3125 Difference between air flow sensor and exhalation flow sensor during air delivery test 8 Patient circuit test test 11 pressure measured by the inspiratory pressure transducer PT3 and the...

Page 78: ... test test 11 the patient circuit leak rate based on calculated compliance value is determined by measuring the decrease in circuit pressure from 50 cmH2O after one second This code indicates that the pressure leak was out of range based on the calculated compliance value 1 Remove inspiratory bacteria filter and external oxygen sensor and try another patient circuit 2 Rerun leak test while blockin...

Page 79: ...te the knob This code indicates no knob response 1 Replace rotary encoder 2 Replace MMI PCB 3 Replace digital PCB 4 Replace main PCB to MMI PCB cable 5 Replace CPU PCB 6 Replace main PCB 3134 Cannot read air flow sensor This code indicates that system cannot read EEPROM from the air flow sensor FS1 1 Enter diagnostic mode then turn ventilator off and on 2 Verify air flow sensor cable connections 3...

Page 80: ... 6 Replace main PCB 3140 Flow sensors cannot erase table This code indicates that flow sensor calibration tables stored on the CPU PCB cannot be erased Replace CPU PCB 3141 Inhalation autozero solenoid cannot open Block patient wye test 1 patient circuit pressurized to 50 cmH2O then inhalation autozero solenoid commanded to energize open and inspiration pressure transducer PT3 should measure 0 cmH...

Page 81: ...air valve stepper commanded to closed position last measured liftoff position 5 steps This code indicates that the measured position was more than 5 steps above or below the liftoff position 1 Replace air motor controller PCB 2 Replace air valve assembly 3 Replace main to motors cable 4 Replace CPU PCB 5 Replace analog PCB 3146 Oxygen stepper motor open position out of range Oxygen delivery test t...

Page 82: ...commanded to midpoint position 1000 5 steps This code indicates that measured position was outside the range of 995 to 1005 steps 1 Replace exhalation motor controller PCB 2 Replace exhalation valve assembly 3 Replace main to motors cable 4 Replace CPU PCB 5 Replace main PCB 3151 Exhalation stepper motor closed position out of range Exhalation valve test test 10 exhalation valve stepper commanded ...

Page 83: ...all relay Operator is prompted to confirm remote This code indicates that confirmation of remote alarm function was not received 1 Verify correct key press 2 Check nurse call 3 Replace CPU PCB 4 Replace main PCB 3156 Inhalation transducer autozero failure Block patient wye test test 1 with no pressure in the circuit the inspiratory pressure transducer PT3 and exhalation pressure transducer PT2 are...

Page 84: ...cates that the exhalation flow is outside of range during exhalation valve test 1 Check circuit integrity 2 Check exhalation filter for occlusion or leaks 3 Check exhalation flow sensor Chapter 5 4 Check orientation of exhalation check valve CV4 5 Replace exhalation flow sensor 6 Replace sensor PCB 4xxx Continuous Built in Test Failures Vent Inop 4002 RAM test Memory test on CPU PCB Replace CPU PC...

Page 85: ... air intake filter and clean or replace as necessary 3 Replace sensor PCB 4007 Exhalation valve stuck open When the exhalation valve is commanded closed the exhalation flow sensor FS3 still measures flow 1 Check exhalation flow sensor Chapter 5 and exhalation valve test the exhalation valve using the flow transducer test described in Chapter 5 2 Replace exhalation motor controller PCB 3 Replace ex...

Page 86: ...re download 2 Replace CPU PCB 4015 Primary alarm failure Electronic pulse detection circuitry unable to confirm a functioning main alarm 1 Check MMI to primary alarm cable and replace as necessary 2 Replace primary alarm 3 Replace digital PCB 4 Replace MMI PCB 5 Replace main PCB 4018 Flow table CRC Flow sensor data on the CPU does not match flow sensor installed in ventilator Replace CPU PCB 4019 ...

Page 87: ...sensor PCB 4 Replace the CPU PCB 5002 Backup battery not connected Backup battery was not detected during power up POST 1 If backup battery was not connected during power up disregard 5002 2 Verify the backup battery is properly connected to the ventilator 3 Connect AC power and allow backup battery to charge and perform Backup battery test see Backup Battery and External Battery Test 13 on page 8...

Page 88: ...ailures 1 Replace sensor PCB 2 Replace power supply 7064 7094 MMI PCB 5V failure and or various combinations of 12V 12V 24V and power failures 1 Replace MMI PCB 2 Replace power supply 7096 7126 MMI PCB 5V failure and or various combinations of sensor PCB 5V 12V 12V 24V and power fail failures 1 Replace MMI PCB 2 Replace sensor PCB 3 Replace power supply 7128 7158 Various combinations of 10V 12V 12...

Page 89: ...001 Flash programming error An error occurred while writing flow sensor calibration data to memory Replace CPU PCB 9002 Flow sensor mismatch The calibration lookup tables stored on the flow sensor and CPU do not match 1 Reprogram the CPU flow sensor tables by powering up in diagnostic mode 2 Slave in a known good flow sensor and cable to each connector J10 J11 J12 on the sensor PCB then power up u...

Page 90: ...ble causes for a 1012 diagnostic code include The air valve opening position is too low or too high 9005 Sensor failure Generic sensor failure due to flow sensor pressure transducer or communication problem 1 Slave in a known good flow sensor and cable to each connector J10 J11 J12 on the sensor PCB then power up until diagnostic mode is accessible 2 Replace the sensor PCB 3 Replace the CPU PCB 4 ...

Page 91: ...g feeling for air flow or carefully probing with a slender flexible object such as a wire or tie wrap The blower and this cooling fan share the same output from the power supply 3 If both the blower and the fan are not working check for 29 VDC 24 VDC if running on battery at the blower controller PCB a Enter diagnostic mode b Place DMM leads on the red and black wires on the green terminal block o...

Page 92: ... the sensor PCB 6 If the blower is working check the DRPT liftoff value section 7 describes how to generate a DRPT report 7 If the liftoff value is below 180 steps there may be foreign material in the valve that prevents it from closing all the way a Cycle the air flow rate from closed to fully open several times to expel any foreign material Use the hardware screen to open the air valve to its ma...

Page 93: ...t Follow these steps to determine the cause and repair for a 5000 diagnostic code 1 Connect a patient circuit including test lung to the ventilator and turn the ventilator ON in diagnostic mode 2 Touch Hardware to view the Hardware screen then select these settings Touch Air and set to 1 LPM Touch Exhalation and set to 2000 Steps Touch Safety to energize white background indicates energized 3 Bloc...

Page 94: ...Pressure and Exhalation Pressure displays on the Hardware screen is greater than 2 cmH2O at any time note which is higher then swap the INSP and EXH tubes on the sensor PCB and retest If the pressures are now higher on the opposite pressure display replace the 3 station solenoid assembly If pressures remain higher on the same pressure display replace the sensor PCB 8 Return the INSP and EXH tubes ...

Page 95: ...as color or graphics must be reprogrammed Writing the ventilator s serial number to the CPU disables any installed options Downloading a new software revision by itself does not disable options If you are downloading software after replacing the CPU PCB you can reprogram the ventilator serial number as part of the software download as described in Programming the Ventilator Serial Number on page 7...

Page 96: ...re 7 1 Click Next to continue or Cancel to exit Figure 7 1 Esprit Setup Screen 4 The Select Language screen Figure 7 2 appears Select a language then click Next to continue or Cancel to exit Figure 7 2 Select Language Screen 5 The Prepare Hardware screen appears Figure 7 3 Connect a standard 9 pin male female RS 232 null modem cable between the ...

Page 97: ...reen The download sequence begins and after approximately five minutes the PC displays a message indicating that software has been successfully downloaded If there is a communication problem between the PC and the ventilator an error message appears Figure 7 4 Check the cable connection and verify that the correct serial port is selected then try the download sequence again Figure 7 4 Software Dow...

Page 98: ...ready downloaded software but have not yet reprogrammed the serial number CAUTION Programming the ventilator serial number disables any installed options such as color or graphics Be sure to program the serial number before enabling an option To program the serial number during a software download 1 While turning the ventilator on simultaneously press the two Options keys on the ventilator front p...

Page 99: ...ou to do so enter the ventilator serial number VSxxxxxxx after the ventilator has restarted in diagnostic mode where xxxxxxx is the seven digit ventilator serial number Enter VS in uppercase letters Enabling Options CAUTION Option enable buttons can be used one time only do not install options until you have verified that the ventilator serial number is displayed at power up or on the software scr...

Page 100: ...port DRPT 1 Connect a 9 pin male female null modem RS 232 cable between the PC and Esprit ventilator To verify that the cable is a null modem cable use a DMM to verify continuity between these DB9 connector pins at opposite ends of the cable 2 Power up the ventilator in diagnostic mode simultaneously press the Alarm Reset and 100 O2 keys for approximately five seconds while turning ventilator powe...

Page 101: ...sories Communications HyperTerminal then double clicking on the HYPERTRM EXE icon 4 Enter a name for the connection Esprit Communications is entered in Figure 7 6 and choose an icon then click OK Figure 7 6 Entering a Name for the Connection to the Esprit Ventilator 5 Select the appropriate serial port Figure 7 7 shows Com1 selected then click OK Figure 7 7 Selecting the Serial Port ...

Page 102: ...EF 580 1000 02 G Ventilator Communications 6 Enter these settings for the serial port Figure 7 8 Figure 7 8 Serial Port Settings 7 At the HyperTerminal window click on File Properties the Settings tab Figure 7 9 then ASCII Setup Figure 7 9 HyperTerminal Settings Tab ...

Page 103: ... Esprit Ventilator Service Manual Respironics Inc 7 9 8 Match the ASCII Setup screen Figure 7 10 then select File Save As and save to the desktop if you want to create an icon for Esprit Communications on the Windows desktop Figure 7 10 ASCII Setup Screen ...

Page 104: ...d 2 Type DRPT all caps in the dialog box and press the Enter key 3 If the ventilator is connected and communication occurs a response similar to the following appears DRPT 03 44 3 1 03 34 01 10 2 01 AirLiftOff 310 O2LiftOff 280 1 0 11 37 43 8 8 01 AirLiftOff 320 O2LiftOff 265 3000 0 11 04 38 8 8 01 NONE 3 0 10 58 17 8 8 01 AirLiftOff 315 O2LiftOff 250 1 0 10 57 32 8 8 01 AirLiftOff 315 O2LiftOff 2...

Page 105: ...stic code 1012 or 1013 occurs Passing ranges for air and oxygen liftoff values are Air liftoff 180 to 500 steps Oxygen liftoff 150 to 500 steps Certain diagnostic codes include additional debugging data In case additional data is displayed contact Respironics Customer Service for more information DRPT 03 44 3 1 03 34 01 10 2 01 AirLiftOff 310 O2LiftOff 280 DRPT Command given to ventilator 03 44 Ve...

Page 106: ...ient monitoring systems using the analog output port Figure 7 12 summarizes the analog output port pinouts Figure 7 12 Analog Output Port Pinouts Pin 12 Alarm 0V active alarm 1 5V no alarm or silenced alarm Pin 13 Nebulizer 5V during inspiratory breath phase Pin 11 Pressure 0V 20 cmH2O 5V 120 cmH2O Pin 10 Volume 0V 0 mL 5V 2500 mL Pin 9 Flow 0V 200 LPM 5V 200 LPM Pin 5 Nebulizer return Pin 4 Alarm...

Page 107: ... flow accuracy 5 Pressure accuracy 6 PEEP system 7 Breath rate 8 Alarm output signal volume and remote alarm 9 Gas volume accuracy 10 Oxygen accuracy 11 Heated exhalation filter power fail alarm 12 Neonatal Option 13 Backup Battery and External Battery if installed Table 8 1 Performance Verification Tests Service Performed Required Tests Annual preventive maintenance All 12 500 hour preventive mai...

Page 108: ...nd power fail alarm Backup Battery and External Battery Removal replacement Blower motor controller PCB All Removal replacement Motor controller s All Removal replacement CPU PCB Electrical safety EST Removal replacement Digital PCB Electrical safety EST Heated exhalation filter and power fail alarm Removal replacement VGA PCB Electrical safety EST Removal replacement Analog PCB Electrical safety ...

Page 109: ...e relief valve poppet Electrical safety EST Pressure accuracy Removal replacement Air system check valve CV2 inspiratory non rebreathing check valve CV3 expiratory non rebreathing check valve CV4 All Removal replacement Crossover solenoid SOL1 safety valve pilot solenoid SOL2 exhalation pressure transducer solenoid SOL3 inspiratory pressure transducer solenoid SOL4 Electrical safety EST Pressure a...

Page 110: ...le of measuring high pressure PSI TSI Certifier FA Plus or equivalent Digital multimeter DMM and frequency counter accurate to three decimal places Local supplier 10 mL calibrated syringe Neonatal testing Hans Rudolph 5220 or equivalent NOTE An oxygen source capable of delivering 180 LPM 40 90 PSI is required for oxygen system tests Table 8 3 Required Test Equipment for Performance Verification De...

Page 111: ...or approximately five seconds while turning ventilator power on b Touch OK to enter diagnostic mode Figure 8 1 Figure 8 1 Entering Diagnostic Mode c Touch Software on the diagnostic screen and record the ventilator configuration information Figure 8 2 on the Performance Verification Data Form page 8 52 d Touch User Config on the diagnostic screen and record the Altitude Figure 8 14 on the Performa...

Page 112: ...alibration analyzer remember The analyzer should be in BTPS when measuring volume The analyzer should be in ATP when measuring flow Certifier FA Plus Setup The following instructions will help guide you through the setup screens of the Certifier FA Plus and select the appropriate parameters and save a configuration for the Esprit Ventilator Measurement Selection Screen Use this screen to add or re...

Page 113: ...Measurement Selection Screen Figure 8 3 Main Screen 2 To add parameters touch the parameter and then touch the right direction arrow To remove parameters touch the left direction arrow refer to Figure 8 4 Recommended Parameters Flow Rate Low Pressure Frequency Inhaled Tidal Volume Oxygen Concentration High Pressure Parameters Breath Average Tab Trigger Options Tab Configuration Tab ...

Page 114: ... order touch OK refer to Figure 8 4 Averaging Setup Menu Use this screen to select the number of breaths that all breath parameters are averaged over and to select the number of seconds the transducers are averaged over 1 Touch the Breath Average tab refer to Figure 8 3 to display the Averaging Setup Menu Screen 2 Use the up or down direction arrows to select 1 for Number of Breaths Averaged and 0...

Page 115: ... 5 Averaging Setup Menu 3 When the appropriate parameters are selected touch OK refer to Figure 8 5 Trigger Options Menu Use this screen to define how the start of the inspiratory breath cycle and expiratory breath cycle is detected 1 Touch the Trigger Options tab refer to Figure 8 3 to display the Trigger Options ...

Page 116: ...8 6 Trigger Options Screen 3 Use the up or down direction arrows to select 20 Lmin for Start Trigger and 2 Lmin for End Trigger refer to Figure 8 6 4 When the appropriate parameters are selected touch OK refer to Figure 8 6 Configuration Menu Use this screen to save configurations and switch between different configurations Saving Configurations 1 Touch the Configuration tab refer to Figure 8 3 ...

Page 117: ...EF 580 1000 02 G Esprit Ventilator Service Manual Respironics Inc 8 11 2 Touch the Save As tab refer to Figure 8 7 Figure 8 7 Save Save As Load screen 3 Touch the New Folder tab refer to Figure 8 8 Figure 8 8 Save As Configuration Screen ...

Page 118: ...F 580 1000 02 G Performance Verification 4 Enter RESPIRONICS using the touch screen keyboard refer to Figure 8 9 then touch OK Figure 8 9 New Folder Screen 5 Verify RESPIRONICS is highlighted and touch Save refer to Figure 8 10 Figure 8 10 Save As Configuration Screen ...

Page 119: ...ce Verification Data Form as each test is completed Electrical Safety Test 1 The electrical safety test verifies that the ground resistance and forward and reverse leakage current are within specified limits Use the ground lug equipotential at the back of the ventilator to connect the electrical safety analyzer to ventilator ground refer to Figure 8 12 Include the External Battery and Backup Batte...

Page 120: ...WARNING Never initiate an EST while the patient is connected to the ventilator The high airway pressures and gas flows generated during EST can injure a patient NOTE If the ventilator fails EST repair the unit then repeat and pass EST before proceeding to another test See Chapter 6 for recommended repair procedures for diagnostic codes 1 Connect an oxygen source to the ventilator 2 Connect the pat...

Page 121: ...en EST must pass before continuing NOTE If the EST fails a test log the diagnostic code measurement and tolerance parameters as displayed in the Failure Data window during EST on the Performance Verification Data Form section 8 7 7 When EST is successfully completed touch User Config to display the User Configuration screen Figure 8 14 Figure 8 14 Diagnostic Mode User Configuration Screen 8 If nec...

Page 122: ...ccuracy of the air and exhalation flow sensors and function of the air valve 1 If the ventilator is not already in diagnostic mode simultaneously press the ALARM RESET and 100 O2 keys on the front panel for approximately five seconds while turning ventilator power on then touch OK to enter diagnostic mode 2 Disconnect the oxygen source from the ventilator 3 Touch Safety on the diagnostic mode Hard...

Page 123: ...rcuit and analyzer to the ventilator as shown in Figure 8 17 7 Set the analyzer s function to read LPM set a flow range capable of measuring 180 LPM air 8 Check that set air flow corresponds to measured flow Ventilator Altitude Setting Air Position Display 0 2000 ft 930 1215 steps 2001 4000 ft 910 1190 steps 4001 6000 ft 890 1165 steps 6001 8000 ft 875 1145 steps 8001 10 000 ft 855 1125 steps Touc...

Page 124: ...the oxygen flow sensor and function of the oxygen valve 1 If the ventilator is not already in diagnostic mode simultaneously press the ALARM RESET and 100 O2 keys on the front panel for approximately five seconds while turning ventilator power on then touch OK to enter diagnostic mode 2 Reconnect the oxygen source to the ventilator 165 LPM 148 5 to 181 5 LPM 0 LPM 0 0 1 LPM Touch Air and set the f...

Page 125: ...er to the ventilator as shown in Figure 8 17 6 Set the analyzer s function to read LPM mode and gas select to O2 set a high flow range capable of measuring 180 LPM oxygen 7 Check that set oxygen flow corresponds to measured flow Ventilator Altitude Setting Oxygen Position Display 0 2000 ft 1175 1575 steps 2001 4000 ft 1145 1540 steps 4001 6000 ft 1120 1505 steps 6001 8000 ft 1090 1470 steps 8001 1...

Page 126: ... while turning ventilator power on then touch OK to enter diagnostic mode 2 Connect a patient circuit and analyzer to the ventilator as shown in Figure 8 20 3 Set the analyzer s function to read cmH2O set pressure range to measure at least 120 cmH2O 4 Touch Safety on the Hardware screen to energize white background the safety solenoid 5 Touch Exhalation on the Hardware screen and set it to 1470 st...

Page 127: ... displays on the hardware screen read within 10 of the analyzer display EXAMPLE If the analyzer s display reads 98 7 cmH2O 10 of the display is 9 87 cmH2O and 10 of the analyzer display would be 88 83 to 108 57 cmH2O 10 98 7 9 87 88 83 cmH2O and 10 98 7 9 87 108 57 cmH2O 9 The pressure accuracy test is complete Figure 8 20 Pressure Accuracy Test Configuration PEEP System Test 6 The PEEP system tes...

Page 128: ...tion check that the analyzer and the Pe End display on the patient data screen read 4 5 to 5 5 cmH2O and the Rate display reads 6 BPM 8 Touch VCV Settings to display the VCV settings screen then touch PEEP and set it to 10 cmH2O 9 Touch Patient Data to display the patient data screen 10 Wait for six breaths to complete 11 During exhalation check that the analyzer and the Pe End display on the pati...

Page 129: ... analyzer and the Pe End display on the patient data screen reads 22 5 to 27 5 cmH2O and the Rate display reads 6 BPM 20 Touch VCV Settings to display the VCV settings screen then touch PEEP and set it to 10 cmH2O 21 Touch Patient Data to display the patient data screen 22 Wait for six breaths to complete 23 During exhalation check that the analyzer and the Pe End display on the patient data scree...

Page 130: ...the accuracy of the breath rate setting and to ensure that the ventilator does not autocycle at high respiratory rates 1 Connect a patient circuit and analyzer to the ventilator as shown in Figure 8 21 2 If the ventilator is not already in normal ventilation mode cycle power to the ventilator to enter normal ventilation mode NOTE The breath rate test requires the ventilator to be in Volume Control...

Page 131: ...lume and Remote Alarm Test 8 This test verifies the performance of the alarm volume control and remote alarm outputs 1 If the ventilator is not already in normal ventilation mode cycle power to the ventilator to enter normal ventilation mode 2 Turn the alarm volume control knob fully counterclockwise 3 Select these ventilator settings and alarm limits Ventilator Settings Alarm Limits Mode VCV A C ...

Page 132: ...ator alarms are active reset any alarms if necessary and the DMM reads 0 3 Ω closed circuit 10 Disconnect the test lung from the wye to create a Low Pressure alarm 11 Slowly turn the alarm volume control knob clockwise 12 Check that the alarm volume steadily increases as you turn the knob 13 Check that the DMM reads infinite resistance open circuit 14 Remove the red lead from the DMM and connect t...

Page 133: ...ort Selector Box Setup Pin 13 Nebulizer 5V during inspiratory breath phase Pin 4 Alarm return Pin 12 Alarm 0V active alarm 1 5V no alarm or silenced Pin 5 Nebulizer return Pin 1 Flow return Pin 2 Volume return Pin 3 Pressure return Pin 9 Flow 0V 200 LPM 5V 200 LPM Pin 10 Volume 0V 0 ml 5V 2500 ml Pin 11 Pressure 0V 20 cmH2O 5V 120 cmH2O DMM Analog Output Port Selector Box ...

Page 134: ...r power on then touch OK to enter diagnostics mode 24 Touch the hardware key then select MONITORS and set the voltage to 2 0 VDC 25 Select PRESSURE then VOLUME then FLOW on the signal selector box or refer to Figure 8 22 for pin outs and verify the DMM reads 2 V 3 V at each setting 26 Select MONITORS and set the voltage to 4 0 VDC 27 Select FLOW then VOLUME then PRESSURE on the signal selector box...

Page 135: ...gure 8 24 Select BTPS mode set volume range for 3 L air Ventilator Settings Alarm Limits Mode VCV A C High Pressure 105 cmH2O Rate 12 BPM Low Pressure 3 cmH2O Tidal Volume 250 mL Low PEEP 0 cmH2O Peak Flow 30 LPM Low Vt Mand 0 mL PEEP 5 cmH2O Low Vt Spont 0 mL I Trigger 20 cmH2O High Rate 150 BPM O2 21 Low VE 0 00 L Insp Hold 0 0 sec Apnea 60 sec Apnea rate 12 BPM Waveform Square ...

Page 136: ...ree breaths the analyzer should read 225 to 275 mL 6 Change the Tidal Volume to 500 mL After six breaths the analyzer should read 450 to 550 mL 7 Change the flow pattern to Square After three breaths the analyzer should read 450 to 550 mL 8 Select these ventilator settings Peak Flow 60 LPM Tidal Volume 1000 mL After six breaths the analyzer should read 900 to 1100 mL 9 Change the flow pattern to R...

Page 137: ...e analyzer should read 900 to 1100 mL 16 Change the flow pattern to Square After six breaths the analyzer should read 900 to 1100 mL 17 Select these ventilator settings Tidal Volume 500 mL Peak Flow 30 LPM After six breaths the analyzer should read 450 to 550 mL 18 Change the flow pattern to Ramp After six breaths the analyzer should read 450 to 550 mL 19 Change the Tidal Volume to 250 mL After si...

Page 138: ...tilator Settings Alarm Limits Mode VCV A C High Pressure 105 cmH2O Rate 12 BPM Low Pressure 3 cmH2O Tidal Volume 500 mL Low PEEP 0 cmH2O Peak Flow 30 LPM Low Vt Mand 0 mL PEEP 5 cmH2O Low Vt Spont 0 mL I Trigger 20 cmH2O High Rate 150 BPM O2 21 Low VE 0 00 L Insp Hold 0 0 sec Apnea 60 sec Apnea rate 15 BPM Waveform Square At this O2 Setting The Patient Data screen and external O2 monitor should re...

Page 139: ...13 BPM Rate 12 BPM I Trigger 2 0 cmH2O High VE 60 0 L Pressure 5 cmH2O E Trigger 25 Low VE 1 00 L I Time 1 0 sec Rise Time 0 1 sec PEEP 0 cmH2O Apnea Rate 12 BPM At this O2 Setting The Patient Data screen and external O2 monitor should read 96 93 to 99 O2 after 12 breaths 60 57 to 63 O2 after 12 breaths 25 22 to 28 O2 after 12 breaths Connect to ventilator inspiratory outlet Ventilator sensor To v...

Page 140: ...play information is still visible when intensity knob is set at minimum 5 With the ventilator turned on unplug the power cord from the AC outlet 6 Check that the audible alarm sounds and start the stopwatch 7 Remove the exhalation bacteria filter from the ventilator 8 Check that it is warm to the touch 9 Reinstall the exhalation bacteria filter 10 Check that the audible alarm is still sounding aft...

Page 141: ...or power off 12 Check that the audible alarm is silenced 13 Plug the ventilator into an AC outlet 14 The heated exhalation bacteria filter and power fail alarm test is complete Start here if no battery is installed 1 With the ventilator turned on verify display information is still visible when intensity knob is set at minimum 2 Unplug the power cord from the AC outlet 3 Check that the audible ala...

Page 142: ... Select User Config verify Compliance is enabled white background If not touch Compliance to enable 3 Touch EST then touch Start EST 4 Select Neonatal patient type and then follow the remaining on screen instructions Test 12b Pressure Accuracy 1 Remain in Diagnostic Mode 2 Block the patient wye 3 Connect the analyzer to the ventilator see Pressure Accuracy Test Configuration on page 8 21 4 Set the...

Page 143: ...lation mode 3 Ensure Neo patient type is selected 4 Select the following settings and alarm limits 5 Using either a DMM and test leads or an Analog Output Port Selector Box connect a DMM and set to measure frequency 6 Select NEB on the signal selector box or refer to Figure 8 22 for pinouts 7 Verify the frequency is between 2 48Hz 149 BPM and 2 52Hz 151 BPM Ventilator Settings Alarm Settings Mode ...

Page 144: ... transition to and from optional battery power Do not perform this test if no battery is installed NOTE The Backup and External batteries if installed should be fully charged before performing this test If the Backup or External Battery is not fully charged this test may fail Record the result of this test as Limited Use on the Performance Verification Data Form until the Backup Battery is charged...

Page 145: ... are off 10 Reconnect the AC power cord Verify that the ventilator continues operating uninterrupted the Mains indicator turns on and the External Battery indicator turns off 11 Verify that the External Battery AC and Battery Charging indicators are on 12 Turn the ventilator off and disconnect the External Battery connector from the back of the ventilator 13 Disconnect the External Battery cable f...

Page 146: ... test is complete Returning Ventilator to Operation Follow these steps to return the ventilator to operation after a successful performance verification 1 Remove all test equipment tools and materials from ventilator 2 Simultaneously press the ALARM RESET and 100 O2 keys on the front panel for approximately five seconds while turning ventilator power on 3 Touch OK to enter diagnostic mode 4 Touch ...

Page 147: ...lator fails a performance verification test Make sure that the external measurement devices such as the pneumatic calibration analyzer are calibrated and functioning properly Perform the repair procedures in the order listed until the problem is resolved See Chapter 5 for diagnostic mode procedures and section 9 for component replacement procedures CAUTION Troubleshooting and repair should be perf...

Page 148: ... damage to the power cord 6 Replace power cord Cooling fan s not operating 1 Check that the fan wires are properly seated in connector J2 on the blower controller PCB for the cooling coil fan and that the power supply shroud fan is connected 2 Slave in a replacement fan and replace if it is operational 3 Replace the Power Supply Forward reverse leakage current out of range 1 Disconnect any devices...

Page 149: ... replace the air flow sensor 8 Slave in a different air flow sensor cable 9 Replace air motor controller PCB 10 Replace the sensor PCB 11 Replace the air valve assembly Symptom Recommended Repair Measured flow rates out of tolerance 1 Confirm correct altitude setting 2 Check that safety valve solenoid is energized 3 Verify calibration analyzer is set to measure oxygen in ATP mode 4 Check that noth...

Page 150: ...6 Replace the 3 station solenoid Symptom Recommended Repair Ventilator PEEP below acceptable value 1 Check for leaks at circuit connections test lung filters etc 2 Check for kinked or cut tubing from inhalation module to SOL4 and from SOL4 to sensor PCB 3 Check for kinked or cut tubing from exhalation pressure tap to SOL3 and from SOL3 to sensor PCB 4 Replace sensor PCB 5 Replace exhalation valve ...

Page 151: ... that calibration analyzer is set to measure the correct gas flow air or oxygen depending on which test failed flow sensor 4 Replace source gas air or oxygen depending on which test failed 5 Replace source gas motor controller air or oxygen depending on which test failed 6 Replaced source gas valve air or oxygen depending on which test failed 7 Replace sensor PCB 8 Replace analog PCB Symptom Recom...

Page 152: ...s 3 Replace digital PCB Display not visible when set to minimum intensity 1 Replace backlight inverter harness 2 Replace backlight inverter PCB 3 Replace LCD Symptom Recommended Repair Inhalation exhalation pressure readings out of range at 5 cmH2O 1 Check for leaks at circuit connections test lung filters etc 2 Check for kinked or cut tubing from inhalation module to SOL4 and from SOL4 to sensor ...

Page 153: ...tions 4 Replace the power supply Backup Battery becomes depleted prematurely 1 If battery had been allowed to fully charge before test replace the Backup Battery 2 Replace the power supply Connecting to AC power causes ventilator to reset Replace the power supply Backup Battery Charging indicator fails to light when connected to AC power following 10 minutes of battery operation Replace the power ...

Page 154: ... charge recharge for 8 to 12 hours if fully depleted 2 Check the Backup Battery output voltage with a DMM Replace battery if the output voltage is below 22 3 VDC Cycling ventilator power results in diagnostic code or continuous backup alarm condition 1 Allow Backup Battery to fully charge recharge for 8 to 12 hours if fully depleted 2 Slave in a known good Backup Battery 3 Replace the power supply...

Page 155: ...ES NO If yes provide a brief description of damage and repair Cleaned ventilator exterior YES NO Inspected cooling fan filter YES NO Inspected blower inlet filter YES NO Inspected oxygen water trap inlet filter YES NO Serial number Software flash version Installed Options Color Graphics Auto Com1 Mech Trend Com2 FTrak NICO ALRM Neonatal SM Altitude Elapsed time meter Test 1 Electrical safety Circl...

Page 156: ...cmH2O cmH2O Inhalation Pressure display analyzer display 10 cmH2O cmH2O cmH2O Exhalation Pressure display analyzer display 10 cmH2O cmH2O cmH2O Test 12c Low Flow Passed Value Failed Value Corrected after repair Exhalation Flow 2 5 3 5 LPM LPM LPM LPM Test 12d Breath Rate Test in Neonatal Mode Passed Value Failed Value Corrected after repair Hz display 2 48 149 BPM 2 52 151 BPM after 60 seconds Hz ...

Page 157: ...f yes provide a brief description of damage and repair Cleaned ventilator exterior YES NO Inspected cooling fan filter YES NO Inspected blower inlet filter YES NO Inspected oxygen water trap inlet filter YES NO Serial number Software flash version Installed Options Color Graphics Auto Com1 Mech Trend Com2 FTrak NICO ALRM Neonatal SM Altitude Elapsed time meter Test 1 Electrical safety Circle One A...

Page 158: ...ide a brief description of damage and repair Cleaned ventilator exterior YES NO Inspected cooling fan filter YES NO Inspected blower inlet filter YES NO Inspected oxygen water trap inlet filter YES NO Serial number Software flash version Installed Options Color Graphics Auto Com1 Mech Trend Com2 FTrak NICO ALRM Neonatal SM Altitude Elapsed time meter Test 1 Electrical safety Circle One Are cooling...

Page 159: ...y 18 22 LPM LPM LPM LPM Air Flow display 18 22 LPM LPM LPM LPM Exhalation Flow display 18 22 LPM LPM LPM LPM Air at 50 LPM Analyzer Flow display 45 55 LPM LPM LPM LPM Air Flow display 45 55 LPM LPM LPM LPM Exhalation Flow display 45 55 LPM LPM LPM LPM Air at 100 LPM Analyzer Flow display 90 110 LPM LPM LPM LPM Air Flow display 90 110 LPM LPM LPM LPM Exhalation Flow display 90 110 LPM LPM LPM LPM A...

Page 160: ... LPM LPM LPM Oxygen Flow display 9 11 LPM LPM LPM LPM Oxygen at 20 LPM Analyzer Flow display 18 22 LPM LPM LPM LPM Oxygen Flow display 18 22 LPM LPM LPM LPM Oxygen at 50 LPM Analyzer Flow display 45 55 LPM LPM LPM LPM Oxygen Flow display 45 55 LPM LPM LPM LPM Oxygen at 100 LPM Analyzer Flow display 90 110 LPM LPM LPM LPM Oxygen Flow display 90 110 LPM LPM LPM LPM Oxygen at 120 LPM Analyzer Flow di...

Page 161: ... End display 4 5 5 5 cmH20 cmH20 cmH20 cmH20 Rate display 6 BPM BPM BPM BPM I Trigger 2 cmH20 PEEP 10 cmH20 Analyzer pressure display 9 11 cmH20 cmH20 cmH20 cmH20 Pe End pressure display 9 11 cmH20 cmH20 cmH20 cmH20 Rate display 6 BPM BPM BPM BPM I Trigger 2 cmH20 PEEP 25 cmH20 Analyzer pressure display 22 5 27 5 cmH20 cmH20 cmH20 cmH20 Pe End pressure display 22 5 27 5 cmH20 cmH20 cmH20 cmH20 Rat...

Page 162: ... FAIL Alarm volume steadily increases PASS FAIL DMM reads infinite resistance with alarm PASS FAIL DMM to analog output port reads 3 to 3 Ω with alarm PASS FAIL Audio alarm is automatically silenced PASS FAIL DMM reads 1 25 1 75 V with no alarm PASS FAIL Nebulizer signal at 0 V reads 0 1 0 1 PASS FAIL Nebulizer signal at 5 V reads 4 4 5 6 V PASS FAIL Pressure volume and flow output at 2 V reads 1 ...

Page 163: ...O2 reads 450 550 mL square wave mL mL mL Analyzer O2 reads 450 550 mL ramp wave mL mL mL Analyzer O2 reads 225 275 mL ramp wave mL mL mL Analyzer O2 reads 225 275 mL square wave mL mL mL Test 10 Oxygen Accuracy Passed Value Failed Value Corrected after repair Value External O2 monitor reads 18 24 VCV mode Ventilator O2 display reads 18 24 VCV mode External O2 monitor reads 27 33 VCV mode Ventilato...

Page 164: ...Intensity Circle One Display information still visible with intensity knob set to minimum PASS FAIL Audible alarm sounds PASS FAIL Exhalation bacteria filter is warm to the touch PASS FAIL Audible alarm sounds after two minutes PASS FAIL Audible alarm was silenced PASS FAIL Test 12 Neonatal Option Testing Test 12a Extended Self Test EST in Neonatal Mode Circle One Did EST pass in Neonatal mode PAS...

Page 165: ...FAIL N A Bus voltage 22 3 VDC after 10 min External Battery operation PASS FAIL N A Transition from AC to External Battery operation does not interrupt ventilator operation and indicators operate correctly PASS FAIL N A Transition from External Battery to AC operation does not interrupt ventilator operation and indicators operate correctly PASS FAIL N A External Battery fully charged PASS FAIL N A...

Page 166: ... Performance verification result is LIMITED USE Did the Performance Verification Pass Circle One YES NO LIMITED USE Backup Battery LIMITED USE External Battery LIMITED USE indicates that the Backup Battery or External Battery operational check failed Recommend that the operator connect the Ventilator to AC power for at least 12 hours and verify battery performance Technician s Signature Date Test ...

Page 167: ...e with newer 10 4 in GUI Figure 9 2 and the bottom enclosure Figure 9 3 NOTE Two GUI versions exist in the field the original monochrome 9 5 in GUI and the later 10 4 in GUI with color capability Because the 9 5 in GUI assembly is no longer available the 10 4 in GUI upgrade kit must be installed when replacing a VGA display touch frame backlight inverter PCB or keyboard Figure 9 1 Top Enclosure 9 ...

Page 168: ...9 2 Esprit Ventilator Service Manual Respironics Inc REF 580 1000 02 G Component Removal Installation Figure 9 2 Top Enclosure 10 4 in GUI Disassembly Flow Chart Figure 9 3 Bottom Enclosure Disassembly Flow Chart ...

Page 169: ...housing then remove air inlet filter Do not remove screws that hold inner housing to the back panel Reverse to install Figure 9 4 Air Inlet Filter To remove the blower inlet filter Figure 9 5 pull blower inlet filter from blower inlet Reverse to install ensuring that the filter is positioned to cover the blower inlet Figure 9 5 Blower Inlet Filter Air inlet filter Do not remove these screws Blower...

Page 170: ...o install CAUTION Be careful not to pull or crimp any cables tubes or wires during removal or installation 1 Turn ventilator power OFF then disconnect AC power and oxygen from the ventilator 2 Remove all accessories including humidifiers flex arms etc and external cables from the ventilator 3 Remove six screws and washers three on each side from the side rails Two longer screws are closest to the ...

Page 171: ...76 potentiometer NOTE For a ventilator with a 9 5 in display the GUI and MMI PCB must be installed before reinstalling the sensor PCB 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Remove all cables from the connectors on the sensor PCB NOTE Tighten all enclosure screws to 24 4 in lbs M5 x 25 screw M5 x 25 screw M5 x 16 screw Lockwashers only on sides Flat washers on bottom only M5 x 1...

Page 172: ...id damage to sensors pry don t pull tubes from sensors 4 Unsnap the sensor PCB from the top two posts then the bottom two posts Remove the sensor PCB Figure 9 8 Sensor PCB SEN J7 J7 SEN J12 J12 SEN J10 J10 SEN J11 J11 SEN BRD J8 J8 SENSOR BRD J3 J4 J3 and J4 Either wire can be connected to either terminal Remove this cable From this connector on the Sensor PCB Do not bump R76 potentiometer positio...

Page 173: ...es from the backlight inverter PCB see Figure 9 10 For the original 10 4 in GUI disconnect cable from the DC DC converter PCB see Figure 9 13 3 Remove the air inlet hose from the power supply shroud then use a 4 mm Allen wrench to remove the five screws that secure the shroud 4 If present disconnect the lithium battery 5 Tilt the front of the shroud carefully and disconnect the fan harness connect...

Page 174: ...2 Disconnect the cables from CN1 and CN2 on the backlight inverter PCB 3 Remove the two screws that hold the PCB to the power supply shroud then remove the backlight inverter PCB Figure 9 10 Backlight Inverter PCB Connections 9 5 in GUI Backlight Inverter PCB Original 10 4 in GUI only WARNING The backlight inverter PCB generates high voltage To avoid personal injury verify that the AC and external...

Page 175: ...r PCB 6 Remove the two Phillips head screws that hold the backlight inverter PCB to the GUI Figure 9 11 Removing Installing the Rotary Encoder Knob Figure 9 12 Removing Installing the Backlight Inverter PCB 10 4 in GUI DC DC Converter PCB Original 10 4 in GUI only Follow these steps to remove the DC DC converter PCB Figure 9 13 for 10 4 in GUI ventilators Reverse removal steps to install 1 Remove ...

Page 176: ...e top enclosure see Top Enclosure on page 9 4 2 Remove the power supply shroud see Power Supply Fan Shroud on page 9 7 3 Unscrew terminal block screws on power supply connector TB1 and disconnect these wires brown pin 1 blue pin 2 and green pin 4 4 Unscrew terminal blockscrews on power supply connector TB2 and disconnect these wires red pin 1 and thin black pin 4 Do not remove the thin black groun...

Page 177: ...enough to disconnect the cables from connectors J1 J2 and J3 then lift the power supply from the top enclosure Figure 9 14 Power Supply Wire Connections TB1 pins 1 2 3 and 4 TB2 pins 1 2 3 and 4 Do not remove ground wire from pin 3 TB3 pins Do not remove ground wire from pin 3 4 3 2 1 Connector TB3 Connector TB1 Connector TB2 underneath PCB ...

Page 178: ...not tighten the screws until all are installed 2 Connect these cables to the power supply Cable PSU J1 to connector J1 Cable PSU J2 to connector J2 Cable PSU J3 to connector J3 3 Install these wires to the power supply pushing the wires completely into the connectors No wires should be visible after being tightened at the terminal block Red and black wires PSU TB3 to connector TB3 Red and black wi...

Page 179: ... power supply generates high voltage To avoid personal injury verify that the AC and external DC power sources are disconnected from the ventilator NOTE F2 fuses will not be field replaceable on the power supplies with fuse F2 soldered to the fuse clip see Figure 9 17 F2 fuses will be available for replacement in Esprit ventilators with power supplies without fuse F2 soldered to the fuse clip see ...

Page 180: ...Chapter 9 9 14 Esprit Ventilator Service Manual Respironics Inc REF 580 1000 02 G Component Removal Installation Figure 9 17 Power Supply Fuses F2 Soldered Figure 9 18 Power Supply Fuses F2 Not Soldered ...

Page 181: ...e see Top Enclosure on page 9 4 2 Remove the power supply shroud see Power Supply Fan Shroud on page 9 7 3 Remove the screws securing the power supply to the top enclosure 4 Move the power supply out of the way to allow access to the MMI mounting screws 5 Remove the sensor PCB see Sensor PCB on page 9 5 6 Remove the cables from the connectors on the MMI PCB Remove cables in this order From this MM...

Page 182: ...OLUME POT J5 MMI J9 LCD BRIGHTNESS POT J9 MMI J3 MAIN HARNESS J3 Ribbon cable from overlay LEDs J11 Ribbon cable from touch frame J12 Ribbon cable from rotary encoder J10 MMI J1 POWER SWITCH J1 MMI J15 BACKUP ALARM J15 Remove cables in this order From this MMI PCB connector When removing lift connector lock before pulling cable Do not use a tool ...

Page 183: ...ld the cable MMI J14 to connector J14 then disconnect the cable and remove it from the U brace 9 Disconnect the cable MMI J2 from connector J2 10 Disconnect ribbon cables from the connectors J6 and J13 touch frame then pull the MMI PCB completely out of the top enclosure NOTE When reinstalling the ribbon cables to J6 and J11 overlay LEDs tug on the cable to ensure that it is properly seated When r...

Page 184: ...MI mounting screws 5 Remove the sensor PCB see Sensor PCB on page 9 5 6 Remove the cables from the connectors on the MMI PCB Remove cables in this order From this connector on the MMI PCB 10 4 in GUI MMI J1 POWER SWITCH J1 MMI J3 MAIN HARNESS J3 MMI J4 PRIMARY ALARM J4 MMI J5 ALARM VOLUME POT J5 Ribbon cable from keyboard LEDs J6 MMI J8 MAIN PCB J8 Rotary encoder ribbon cable J10 Ribbon cable from...

Page 185: ...alling the ribbon cable to J12 and J13 ensure that no connector pins are visible then snap cover shut Figure 9 21 MMI PCB Connectors 10 4 in GUI GUI Assembly 9 5 in GUI NOTE Because the original 9 5 in GUI assembly is no longer available the 10 4 in GUI upgrade kit must be installed when replacing a VGA display touch frame or keyboard Follow these steps to remove the 9 5 in GUI assembly Figure 9 2...

Page 186: ... 3 mm screws securing the GUI to the top enclosure 8 Carefully remove the GUI assembly from the top enclosure Figure 9 22 9 5 in GUI Assembly Follow these steps to install the 9 5 in GUI assembly Figure 9 23 1 Assemble the knobs to brightness and volume potentiometers so that set screws are closest to potentiometers On the intensity potentiometer ensure that the hex screw on the knob makes contact...

Page 187: ...23 GUI Cables 5 Readjust the intensity and volume potentiometers so that knobs can turn freely Do not overtighten screws 6 Reposition and secure the power supply see Power Supply on page 9 10 7 Install the sensor PCB see Sensor PCB on page 9 5 8 Install the top enclosure see Top Enclosure on page 9 4 GUI Assembly Original 10 4 in GUI Follow these steps to remove the 10 4 in GUI assembly Figure 9 2...

Page 188: ...ation 3 Remove the in nut and star washer to the rotary encoder 4 Carefully separate the GUI from the enclosure enough to gain hand access Disconnect all interconnect harnesses between the GUI and enclosure Figure 9 24 10 4 in GUI Assembly 2 5 mm screws at bottom corners of GUI Rotary encoder cover 11 mm nut ...

Page 189: ...o remove the 10 4 in GUI assembly Figure 9 24 Figure 9 25 Reverse removal steps to install 1 Unscrew the two 2 5 mm screws from the bottom corners of the GUI 2 Remove the GUI knob cover loosen the 11 mm nut and then remove the knob 3 Remove the in nut and star washer to the rotary encoder 4 Carefully separate the GUI from the enclosure enough to gain hand access Disconnect all interconnect harness...

Page 190: ...onics Inc REF 580 1000 02 G Component Removal Installation Figure 9 26 2nd Generation 10 4 in GUI Assembly 2 5 mm screws at bottom corners of GUI Rotary encoder cover 11 mm nut Orient cables as shown Color Display Cable Adapter PCBA Color Display Cable LCD ...

Page 191: ...ntiometers Figure 9 28 Reverse removal steps to install as shown 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Remove the sensor PCB see Sensor PCB on page 9 5 3 Remove the power supply see Power Supply Fan Shroud on page 9 7 4 Remove the MMI PCB see MMI PCB 9 5 in GUI on page 9 15 5 Remove the GUI assembly see GUI Assembly 9 5 in GUI on page 9 19 6 Remove the nut and washer holding e...

Page 192: ...ew the two 2 5 mm screws from the bottom corners of the GUI 3 Remove the GUI knob cover loosen the 11 mm nut then remove the knob 4 Remove the in nut and star washer to the rotary encoder 5 Separate the GUI from the enclosure Disconnect all interconnect harnesses between the GUI and enclosure 6 Loosen the set screws one for each knob holding the brightness and alarm volume knobs 7 Remove the in nu...

Page 193: ...ove the sensor PCB see Sensor PCB on page 9 5 3 Remove the power supply see Power Supply Fan Shroud on page 9 7 4 Disconnect the rotary encoder harness from the J10 connector on the MMI PCB see MMI PCB 9 5 in GUI on page 9 15 5 Remove the GUI assembly see GUI Assembly 9 5 in GUI on page 9 19 6 Pry the blue cover from the rotary encoder 7 Loosen the 11 mm nut holding the knob then remove the knob a...

Page 194: ...coder according to the orientation shown 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Remove the sensor PCB see Sensor PCB on page 9 5 3 Disconnect the rotary encoder harness from the J10 connector on the MMI PCB see MMI PCB 10 4 in GUI on page 9 18 4 Remove the GUI assembly see GUI Assembly Original 10 4 in GUI on page 9 21 5 Remove the in nut and star washer holding the rotary enco...

Page 195: ...emove 3 Use a small flat head screwdriver to lift the corner of the keyboard assembly then peel the keyboard from the bezel 4 Use a soft cloth and isopropyl alcohol to remove any adhesive remaining on the bezel 5 Peel the backing off the replacement overlay and remove the small pieces of back behind the ribbon cables 6 Thread the ribbon cables through the bezel slots then align the overlay over th...

Page 196: ...A display touch frame or keyboard Follow these steps to remove the VGA display assembly Figure 9 34 Reverse removal steps to install 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Remove the sensor PCB see Sensor PCB on page 9 5 3 Remove the power supply see Power Supply Fan Shroud on page 9 7 4 Remove the GUI assembly see MMI PCB 9 5 in GUI on page 9 15 5 Remove four hex screws holdin...

Page 197: ... 9 34 Reverse removal steps to install NOTE Because the original 9 5 in GUI assembly is no longer available the 10 4 in GUI upgrade kit must be installed when replacing a VGA display assembly touch frame or keyboard NOTE Reinstall the touch screen LED indicator assembly and front panel overlay as shown noting the orientation of the cables and the arrow on the touch screen LED indicator 1 Remove th...

Page 198: ...ws securing the GUI to the enclosure 2 Remove the rotary encoder see Rotary Encoder 10 4 in GUI s on page 9 28 The rotary encoder has the only harness connector not accessible within the GUI assembly 3 Gently pry the GUI assembly from the ventilator enclosure enough to access and disconnect the harness connectors 4 Remove the rotary encoder from the GUI assembly 5 Disconnect harnesses from the tou...

Page 199: ...gure 9 36 Reverse removal steps to install 1 Remove the 2 5 mm screws securing the GUI to the enclosure 2 Remove the rotary encoder see Rotary Encoder 10 4 in GUI s on page 9 28 The rotary encoder has the only harness connector not accessible within the GUI assembly 3 Gently pry the GUI assembly from the ventilator enclosure enough to access and disconnect the harness connectors 4 Remove the rotar...

Page 200: ...ve the four M3 x 5 mm screws and four M3 flat washers that hold it to the LCD bracket Figure 9 36 9 Set the LCD face up on a nonabrasive surface 10 To remove the LCD bracket remove the two 2 5 mm screws that hold the LCD bracket to the bezel Then carefully remove the LCD bracket from the bezel 11 To remove the IR touch frame carefully pop out the IR touch frame assembly from the bezel 12 To remove...

Page 201: ...e the LCD and transition PCBA remove the two M3 x 16 mm screws and two M3 flat washers that hold the LCD to the LCD bracket Figure 9 36 3 Set the LCD face up on a nonabrasive surface 4 Clean the IR TouchFrame and LCD assemblies with isopropyl alcohol with a soft lint free cloth 5 Separate the GUI dust gasket parts Figure 9 38 6 Place the four foam pieces on the LCD Figure 9 39 and Figure 9 40 7 Ve...

Page 202: ...he installed foam pieces are not visible from the viewing side of the GUI assembly 10 Clean all dust from the ventilator bulkhead 11 Place the two bulkhead foam pieces the straight piece under the bottom ribbon cable and the other piece above the potentiometer wheels Figure 9 41 12 Re attach the GUI assembly to the ventilator Figure 9 38 GUI Dust Gaskets Figure 9 39 Installing the GUI Dust Gaskets...

Page 203: ...Chapter 9 Component Removal Installation REF 580 1000 02 G Esprit Ventilator Service Manual Respironics Inc 9 37 Figure 9 40 Installing the GUI Dust Gaskets Figure 9 41 Installing the Bulkhead Foam ...

Page 204: ...ed Minimum Alarm Volume Harness 3 Disconnect the Increased Minimum Alarm Volume Harness from J5 of the MMI PCBA Figure 9 42 Increased Alarm Volume Harness Backup Alarm Follow these steps to remove the backup alarm Figure 9 43 Reverse removal steps to install NOTE Before reinstalling the backup alarm inspect the EMI and mesh cooling fan filters If the filters are dirty rinse with warm water and wip...

Page 205: ...hat the AC and external DC power sources are disconnected from the ventilator Follow these steps to remove the AC distribution panel Figure 9 44 Figure 9 45 Figure 9 46 Reverse removal steps to install 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Remove the ten screws and washers that hold the AC distribution panel to the enclosure Note that one screw is longer M3x12 and is fastened ...

Page 206: ... G Component Removal Installation Figure 9 44 AC Distribution Panel From Outside the Top Enclosure Figure 9 45 AC Distribution Panel From Inside the Enclosure Longer M3x12 screw 5 5 mm nut 10 mm nut 2 5 mm screw M3x12 screw inserted from outside of enclosure fastened with 5 mm nut ...

Page 207: ...ined below are not followed NOTE If the AC Cord Bracket is missing verify the KEP nuts are not inside the Esprit enclosure 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Remove the AC Distribution Panel see AC Distribution Panel on page 9 39 3 Remove the screws washers and KEP nuts that hold the AC Cord Bracket to the AC Distribution Panel Figure 9 47 Figure 9 47 AC Cord Bracket Outsid...

Page 208: ...power cords to connect to the receptacle Follow these steps to rotate the receptacle Figure 9 48 Figure 9 49 Figure 9 50 Figure 9 51 1 Remove the top enclosure see Top Enclosure on page 9 4 to allow access to the AC distribution panel 2 From inside the ventilator unscrew the blue neutral wire from the humidifier circuit breaker Figure 9 48 Removing the Blue Neutral Wire Blue neutral wire Remove th...

Page 209: ...acle Jackscrews 5 Unscrew the other end of the blue neutral wire from the AC receptacle and discard the wire 6 Insert the longer replacement neutral wire P N 1012131 into the AC receptacle twist the wires if necessary and check that no copper wiring extends outside the receptacle after the wire is inserted 7 Rotate the receptacle and use the jackscrews to secure it into place Mains circuit breaker...

Page 210: ... Perform the electrical safety test and EST as described in Chapter 8 Printed Circuit Boards Daughter PCBs Except Main PCB Follow these steps to remove the daughter PCBs Figure 9 52 Figure 9 56 Reverse removal steps to install NOTE NOTE The main PCB must be installed before reinstalling the other PCBs 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Loosen the three captive screws and re...

Page 211: ...02 G Esprit Ventilator Service Manual Respironics Inc 9 45 Figure 9 52 Printed Circuit Boards PCBs VGA PCB Main PCB Digital PCB Analog PCB CPU PCB Air motor controller PCB Oxygen motor controller PCB Exhalation motor controller PC Daughter PCBs PCB Shroud ...

Page 212: ...hen installing the new CPU PCB with 4 10 OTP P N 1022451 verify the Main PCB is the correct version P N 1005947 or P N 632 01000 03 Rev D or greater by performing the following step 1 Verify the checksum on U14 see Figure 9 53 of the Main PCB is B27A see Figure 9 54 if not replace the Main PCB Figure 9 53 U14 on Main PCB Figure 9 54 CKSUM B27A ...

Page 213: ...e on page 9 4 2 Remove all vertically mounted PCBs from the main PCB section 9 25 and store each PCB in a conductive bag 3 Remove the backup alarm section 9 21 but do not disconnect the red and black wires from the alarm 4 Hang the alarm assembly over the edge of the bottom enclosure 5 Remove the outer backup alarm cover and mesh filter 6 Remove the AC distribution panel section 9 22 7 Remove the ...

Page 214: ... G Component Removal Installation Figure 9 56 Main PCB and Daughter PCBs RS 232 port Remote alarm port Parallel port PCMCIA slot Analog output port Exhalation motor controller PCB Air motor controller PCB Oxygen motor controller PCB Digital PCB Analog PCB CPU PCB Expansion VGA PCB ...

Page 215: ...te alarm jack Reverse removal steps to install 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Loosen the three captive screws and remove the screw holding the PCB shroud then remove the cover 3 Remove the nut and washer from the remote alarm jack Figure 9 58 4 Disconnect the remote alarm jack harness from CN2 on the Main PCB Figure 9 59 Figure 9 58 Remote Alarm Jack Outside view 3 mm s...

Page 216: ...h as shown when reinstalling 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Disconnect the spade connectors from the power switch terminals 3 Press the flex clips on the side of the switch and push down to remove the switch Figure 9 60 Power Switch Wire Connections FIO2 Connector Follow these steps to remove the FIO2 connector Figure 9 61 Reverse removal steps to install 1 Remove the t...

Page 217: ...on flow sensor Figure 9 62 Figure 9 63 1 Remove the top enclosure see Top Enclosure on page 9 4 2 Remove the enclosure brace 3 Cut the tie wrap holding the exhalation flow sensor to the exhalation valve and the tie wrap holding cable EXH F S to the exhalation flow sensor 4 Disconnect cable EXH F S from the exhalation flow sensor 5 Remove the screw holding the exhalation outlet port to the exhalati...

Page 218: ...xhalation flow sensor Figure 9 62 Enclosure Brace Figure 9 63 Exhalation Flow Sensor Follow these steps to install the exhalation flow sensor NOTE The filter heater assembly and exhalation valve assembly must be installed before reinstalling the exhalation flow sensor Enclosure brace Screws Exhalation valve Filter heater Exhalation flow sensor Exhalation valve outlet port Tie wraps To vent port ...

Page 219: ...w sensor completely into the exhalation valve use a slight rotating motion and fasten with a tie wrap To avoid damaging the flow sensor hand tighten only do not tighten the tie wrap with a tool 6 Connect cable EXH F S to the flow sensor and fasten with a tie wrap To avoid damaging the flow sensor hand tighten only do not tighten the tie wrap with a tool 7 Install enclosure brace 8 Install top encl...

Page 220: ...exhalation valve taking care not to damage the coiled spring Figure 9 64 Exhalation Valve and Filter Heater Assembly Figure 9 65 Exhalation valve to Filter Heater Connection Exhalation valve assembly Bolts 4 PL Green ground wires Heater assembly Exhalation flow sensor Exhalation valve Four M4x12 bolts Green ground wires Filter heater ...

Page 221: ...not necessary to inspect CV4 if you are installing a new exhalation valve 3 Use the four M4x12 bolts to fasten the exhalation valve to the filter heater assembly with the two green ground wires connected Figure 9 65 4 Connect the transfer tube to inspiratory manifold 5 Route the two cables MTR EV from the exhalation valve under the aluminum transfer tube on the oxygen flow sensor then connect them...

Page 222: ...nect the primary alarm cable from the P ALARM cable 3 Remove the two 7 32 in nuts that hold the alarm for the standard primary alarm or bracket and alarm for the high volume alarm then remove Figure 9 67 Primary Alarm Filter Heater Assembly Follow these steps to remove the filter heater assembly Figure 9 68 Reverse removal steps to install 1 Remove the top enclosure see Top Enclosure on page 9 4 2...

Page 223: ...e the top enclosure see Top Enclosure on page 9 4 2 Remove the enclosure brace 3 Completely remove the 4 mm screws and clamp from the oxygen flow sensor 4 Cut the tie wrap holding cable O2 F S to the oxygen flow sensor then disconnect the cable 5 Gently push the oxygen flow sensor and the aluminum sleeve toward each other then tilt the flow sensor up at the oxygen valve and lift out Filter heater ...

Page 224: ...lacement parts Lightly lubricate o rings with Krytox GPL226 lubricant when installing and relubricate at every reinstallation 1 Slide the aluminum oxygen inspiratory port onto the outlet of the flow sensor 2 With the flow arrow pointing toward the inspiratory manifold insert the flow sensor into the oxygen valve outlet port then push the aluminum sleeve into the inspiratory manifold The circuit bo...

Page 225: ...r on page 9 65 5 Remove the vent port tubing from the inspiratory manifold 6 Disconnect the tubes from the inspiratory exhalation and safety valve solenoids 7 Remove the green ground wire from the manifold 8 Loosen the recessed 2 5 mm hex set screw on the outlet port but do not remove it When re installing the outlet port partially set the setscrew into one of the indents Turn the outlet port left...

Page 226: ...anifold Assembly Figure 9 71 Recessed 2 5 mm Set Screw Securing Outlet Port Safety valve solenoid tubing connection M4x60 mm screw M4x90 mm screw Oxygen flow sensor CV2 located inside inspiratory manifold behind air flow sensor port Air flow sensor port Vent port Inspiratory solenoid tubing connection Exhalation solenoid tubing connection ...

Page 227: ...L226 lubricant when installing and relubricate at every reinstallation When replacing original version of inspiratory manifold assembly use cable extension kit to rework main PCB to motor cable as described in Installing the Cable Extension Kit on page 9 62 1 Turn the two inspiratory manifold screws Figure 9 70 a few threads to secure the inspiratory manifold but do not tighten yet 2 Connect the s...

Page 228: ... all remaining tubes to the inspiratory manifold Figure 9 70 11 Reconnect the cables labeled EXHAL SOL INSP SOL and SAFETY SOL Figure 9 70 12 Install the enclosure brace and top enclosure see Top Enclosure on page 9 4 Installing the Cable Extension Kit Updated three station solenoids and crossover solenoids SOL1 are used to manufacture Esprit ventilators Because the electrical connectors on these ...

Page 229: ...ting Off Electrical Connector from Main PCB to Motor Cable 2 If necessary affix the appropriate label from the cable extension kit to identify the individual wire pair s 3 Insert the cut wire ends over both contacts in the crimp connector Figure 9 74 for each cut wire pair Figure 9 74 Installing Cut Wires into Crimp Connector Cut close to the connector Extension kit wires and connector Crimp conne...

Page 230: ...r the solenoid assembly When reinstalling the screws that hold the solenoid assembly to the inspiratory manifold torque to 5 5 1 in lbs When replacing original version of three station solenoid use cable extension kit to rework main PCB to motor cable as described in Installing the Cable Extension Kit on page 9 62 Follow these steps to remove the three station solenoid assembly Figure 9 76 Reverse...

Page 231: ... the flow arrow pointing toward the inspiratory manifold To avoid damaging the flow sensor hand tighten replacement tie wraps do not tighten the tie wrap with a tool 1 Remove top enclosure see Top Enclosure on page 9 4 2 Remove enclosure brace 3 Disconnect the transfer tube from blower outlet to the top port of the air valve 4 Disconnect the vent tube from the safety valve port then fold the tube ...

Page 232: ...hese steps to remove the air valve assembly Figure 9 61 Reverse removal steps to install NOTE The oxygen regulator assembly must be installed before reinstalling the air valve Install a replacement mesh cup before reinstalling the air valve inlet tube place the mesh cup over the air valve inlet port then insert the blower outlet hose over the mesh cup completely up to the valve body 1 Remove the t...

Page 233: ...llow these steps to remove the oxygen valve assembly Figure 9 79 Reverse removal steps to install NOTE The oxygen regulator assembly must be installed before reinstalling the oxygen valve assembly When reinstalling the oxygen valve ensure that the oxygen regulator and oxygen flow sensor are fully installed to the oxygen valve assembly Always inspect o rings between interconnecting parts and replac...

Page 234: ... do not cut the tie wrap or disconnect the O2 F S cable from the flow sensor 4 Remove the air flow sensor but do not disconnect the AIR F S cable from the flow sensor see Air Flow Sensor on page 9 65 5 Remove the air valve assembly see Air Valve Assembly on page 9 66 6 Disconnect the two MTR O2 cables on the oxygen valve from the mating MTR O2 cable 7 Disconnect the CROSS SOL cable from the crosso...

Page 235: ...move the air valve assembly see Air Valve Assembly on page 9 66 6 Remove the oxygen valve assembly see Oxygen Valve Assembly on page 9 67 7 Use a 4 mm hex wrench to remove the two screws holding the oxygen water trap to the bracket 8 Use a 2 5 mm hex wrench to remove the bracket screw above the water trap 9 Unscrew the bowl from the oxygen water trap then unscrew the water trap from the inlet bloc...

Page 236: ...e bundle of cables running across the top of the sensor PCB 4 Install oxygen valve assembly see Oxygen Valve Assembly on page 9 67 Ensure that the oxygen valve is fully installed to the regulator 5 Install air valve assembly see Oxygen Regulator Assembly with Oxygen Pressure Switch on page 9 69 6 Install air flow sensor see Air Flow Sensor on page 9 65 7 Install oxygen flow sensor see Oxygen Flow ...

Page 237: ...me Meter NOTE Record the previous elapsed time meter hours on service documentation replacement meters always start at 0 hours Follow these steps to remove the elapsed time meter Figure 9 81 Reverse removal steps to install 1 Disconnect all oxygen and power sources from the ventilator 2 Unscrew the bowl from the oxygen water trap inlet filter assembly 3 Remove the two 2 mm screws holding the elaps...

Page 238: ...rap by unscrewing it counterclockwise from the inlet block Follow these steps to replace the oxygen water trap 1 Clean any residual Teflon tape from the threads of the oxygen inlet block 2 Apply 2 turns of Teflon tape to the threads of the oxygen inlet block 3 Screw the oxygen water trap onto the oxygen inlet block until one thread is showing and the assembly is perpendicular to the floor 4 Screw ...

Page 239: ...t is attached to the bottom rear stud 1 Remove top enclosure see Top Enclosure on page 9 4 2 Remove the enclosure brace 3 Remove three 5 5 mm nuts and washers holding the blower motor controller PCB bracket then partially remove the bracket 4 Disconnect the wires from the green terminal block connector J2 on the large PCB 5 Disconnect the cables from the blower and sensor PCB harnesses on the smal...

Page 240: ...ly remove the bracket 4 Disconnect the wires from the green terminal block connector J2 5 Disconnect the cables from the blower and sensor PCB harnesses 6 Remove the entire bracketed blower motor controller PCB assembly Figure 9 84 Updated Blower Motor Controller PCB Blower Assembly Follow these steps to remove the blower assembly Figure 9 85 Figure 9 86 Figure 9 71 1 Remove top enclosure see Top ...

Page 241: ...original blower assembly holding the blower 9 Loosen the hose clamp holding the silicone tube to blower outlet then disconnect the tube 10 Disconnect the BLOWER cable from its connection on the blower controller PCB 11 Loosen the screws securing the orange yellow and blue wires from the blower harness to the green terminal block connector J2 on the blower motor controller PCB Disconnect the wires ...

Page 242: ... be perpendicular to the blower after tightening Torque just until firm do not overtighten 3 Route the blower cables between the cooling coil and the enclosure wall 4 Connect the BLOWER J1 cable to connector J1 or J2 on the blower motor controller PCB Figure 9 83 5 Connect the blue yellow and orange wires to the green terminal block connector J2 on the original blower motor controller PCB Figure 9...

Page 243: ...ghten 11 Connect the small silicone tube from the blower to the crossover solenoid assembly 12 Install a new mesh cup on the top port of the air valve then insert the blower outlet hose over the mesh cup completely to the valve body 13 Install enclosure brace 14 Install top enclosure see Top Enclosure on page 9 4 Figure 9 87 Blower Assembly Position on Gasket Blower Muffler Assembly Follow these s...

Page 244: ...de of the bottom enclosure and the air inlet cover holes are aligned 2 Align the metal inlet gasket over the rubber gasket then secure the cover with five 2 5 mm screws 3 Apply one drop of Loctite 222 to the threads of the four muffler mounting bolts 4 Tighten the bolts until they just touch the muffler then back off 1 turns 5 Fold the gasket over the threaded studs 6 Connect the transfer tube to ...

Page 245: ...ding the blower shroud to the bottom enclosure 7 Partially remove the shroud pull the transfer tube into the shroud then completely remove the shroud 8 Loosen the hose clamp holding the silicone tube at the blower outlet then disconnect the tube 9 Disconnect the transfer tube from the bottom of the cooling coil 10 Loosen the two top screws in connector J2 on the blower motor controller PCB Disconn...

Page 246: ...nection 4 Connect the transfer tube to the bottom of the cooling coil 5 Connect the silicone tube to the top of the blower outlet and fasten with the hose clamp 6 Push the transfer tube through the hole in the shroud then install the grommet in the shroud 7 Use the four lock nuts to fasten the shroud 8 Connect the green ground wires from the exhalation valve and solenoid assembly to the shroud stu...

Page 247: ...ng the color upgrade option or replacing a VGA display touch frame backlight inverter PCB or keyboard The GUI upgrade procedure includes the following steps if applicable Replacing the GUI see page 9 84 Installing the upgrade kit CPU and DC DC converter PCBs see page 9 87 Downloading ventilator software see page 9 87 Calibrating the screen see page 9 88 Enabling the color option see page 9 88 Enab...

Page 248: ...n GUI upgrade kit 1014182 1019370 10 4 in to 10 4 in upgrade kit N A 1020175 10 4 in GUI assembly 1014183 1019107 2 Mb CPU PCB 1012273 1018603 DC DC converter PCB 1004972 N A GUI shielding plate 1003194 1003194 Cable 10 4 in display to main PCB 1016006 1018334 Cable backlight inverter N A 1018336 Transition PCBA N A 1018752 Adapter PCBA N A 1018753 Backlight inverter PCBA 1005514 1019368 Mounting ...

Page 249: ...e assembly P N 1006460 10 4 in keyboard overlay assembly P N 1006582 Cable MMI PCB to overlay P N 1003311 Cable MMI PCB to touch frame P N 1003310 Cable 10 4 in color display P N 1016006 2nd Generation 10 4 in GUI VGA display failure parts required depend on specific reason for failure 10 4 in VGA display assembly P N 1019107 10 4 in LCD assembly includes LCD only P N 1019369 Backlight inverter PC...

Page 250: ...ing the MMI PCB to the bulkhead bracket and then remove both the MMI PCB and bulkhead bracket see MMI PCB 9 5 in GUI on page 9 15 6 Remove the J14 harness from the main PCB it will not be reused 7 Remove the 9 5 in GUI assembly GUI Assembly 9 5 in GUI on page 9 19 Loosen the alarm volume and intensity control potentiometer set screws Retain the ribbon cable end connectors 8 Transfer the language i...

Page 251: ...ics Inc 9 85 Figure 9 90 Display to Main PCB Wiring Harness Figure 9 91 Enlarge Hole in Ventilator Enclosure for New GUI Cable To 10 4 in VGA display To ground lug To main PCB connector CN9 To backlight inverter PCB To DC DC converter PCB To LCD intensity potentiometer Enlarge hole to 3 8 in diameter ...

Page 252: ...2 Front of Ventilator Before Installing 10 4 in GUI 13 Position the foil blanket in the enclosure and reattach the bulkhead plate and MMI PCB 14 Connect all of the interconnect cables to the 10 4 in GUI and reinstall the potentiometer knobs with the set screws toward the face of the GUI on 9 4 in GUIs the knobs were installed with set screws toward the inside of the enclosure Ensure that the knobs...

Page 253: ...roud Installing the CPU and DC DC Converter PCBs Remove the existing PCBs and replace with the PCBs included in the upgrade kit Printed Circuit Boards Daughter PCBs Except Main PCB on page 9 44 describes how to install the CPU PCB DC DC Converter PCB Original 10 4 in GUI only on page 9 9 describes how to install the DC DC converter PCB Downloading Ventilator Software See Chapter 7 for complete sof...

Page 254: ... EST with the top enclosure removed If the EST passes install the top enclosure see Top Enclosure on page 9 4 Enabling Options Enable an option see Chapter 7 only if the option upgrade is being installed at this time Final Checkout Complete the recommended tests in the performance verification procedure see section 8 Replacing the GUI 9 5 in to 2nd Generation 10 4 in 1 Disconnect power unscrew and...

Page 255: ...m the old GUI to the new 9 Remove the conductive tape from the shielding plate unscrew all hardware securing the shielding plate to the ventilator housing and remove the old shielding plate 10 Attach the new shielding plate and conductive tape Figure 9 94 NOTE Each of the three ball catches that hold the GUI to the enclosure has two tension adjustment screws Adjust the ball catch tension by first ...

Page 256: ...nect cables Installing the CPU PCB Remove the existing CPU PCB and replace with the CPU PCB included in the upgrade kit Secnum describes how to install the CPU PCB Downloading Ventilator Software See Chapter 7 for complete software download instructions 1 Connect the service PC to the ventilator serial port using a null modem cable 2 Insert the field upgrade CD ROM and follow the onscreen instruct...

Page 257: ...tion see Chapter 7 only if the option upgrade is being installed at this time Final Checkout Complete the recommended tests in the performance verification procedure see Chapter 8 Replacing the GUI Original 10 4 in to 2nd Generation 10 4 in 1 Disconnect power unscrew and separate the ventilator top and bottom halves Set the halves side by side 2 Remove the GUI assembly from the enclosure see GUI A...

Page 258: ...nverter PCBA Figure 9 96 Figure 9 96 Removing the Backlight Inverter 5 Remove the original 10 4 in LCD and backlight inverter PCBA from the GUI assembly 6 If necessary clean the inside surface of the touchframe using Isopropyl Alcohol and a soft lint free cloth 7 Connect the 2nd generation backlight inverter cable to the 2nd generation backlight inverter PCBA 8 Install the 2nd generation backlight...

Page 259: ...nd generation LCD onto the LCD bracket and secure with four M3 flat washers and four M3 x 5 mm screws Tighten screws to 5 5 1 in lbs Figure 9 97 Figure 9 97 Installing the LCD 10 In the place of the previously removed screws on the LCD bracket place two 5 16 in hex spacers Figure 9 98 Figure 9 98 Installing the LCD Hex spacers ...

Page 260: ... is fully seated Figure 9 99 12 Insert one M3 x 16 mm screw into one M3 flat washer Insert the screw through the transition PCBA and hex spacer and then tighten screws to 5 5 1 in lbs Figure 9 99 Figure 9 99 Installing the Transition PCBA 13 Install the color display data cable onto the transition PCBA Verify the cable is fully seated Figure 9 100 Figure 9 100 Installing the Color Display Cable Sc...

Page 261: ...he GUI 17 Carefully install the GUI onto the top enclosure Insert one M3 x 8 mm screw into one M3 lock washer Hand tighten the screws 18 Install the adapter PCBA onto the main PCBA Verify the adapter PCBA is fully seated Insert one screw with lock washer through the adapter PCBA Tighten to 4 0 1 in lbs Figure 9 101 Figure 9 101 Installing the Adapter PCBA 19 Connect the backlight inverter cable to...

Page 262: ...n 2 The ventilator prompts you to calibrate the screen Upon acknowledgement the software automatically detects and adjusts for the 10 4 in screen size 3 After the ventilator confirms the screen calibration is complete cycle power to the ventilator and enter diagnostic mode 4 Enter the software screen and confirm that the serial number is correct 5 Reset the altitude and compliance compensation set...

Page 263: ...or Service Manual Respironics Inc 10 1 Chapter 10 Where to Go for Help For further information or technical assistance contact Respironics Customer Service By email service respironics com In the U S 800 345 6443 Outside the U S 724 387 4000 phone or 724 387 5012 fax ...

Page 264: ...Chapter 10 10 2 Esprit Ventilator Service Manual Respironics Inc REF 580 1000 02 G Where to Go for Help This page is intentionally blank ...

Page 265: ...the Esprit Ventilator including Electronics see page 11 2 GUI assembly see page 11 3 Oxygen pneumatics see page 11 5 Air pneumatics see page 11 7 Exhalation pneumatics see page 11 9 Inspiratory pneumatics see page 11 10 Back panel see page 11 11 Service Part Inventory List on page 11 13 lists the recommended service part inventory and Complete Repair Parts List on page 11 16 lists all repair parts...

Page 266: ...ctronics Power supply P N 1018246 Digital PCB P N 1005946 Motor controller PCB air oxygen exhalation P N 1001341 Blower motor controller PCB P N 1017857 VGA controller PCB P N 1001345 CPU PCB w 4 10 OTP P N 1022451 Requires 30 10 software or greater Analog PCB P N 1001343 Main PCB P N 1034721 MMI PCB P N 1026559 Sensor PCB P N 1001353 ...

Page 267: ... Original 10 4 in GUI assembly P N 1014183 Overlay assembly Backlight inverter PCB For 9 5 in P N 1001350 For original 10 4 in P N 1005514 10 4 in overlay assembly P N 1006582 Optical rotary encoder includes lock washer and nut P N 443 1000 00 Washer P N 550 1000 08 Knob P N 330 1000 01 Knob cap P N 330 1000 03 Infrared touchframe 10 4 in only P N 1006460 2nd Generation 10 4 in GUI P N 1019107 ...

Page 268: ...2965 Original 10 4 in only Touchscreen to MMI PCB cable not shown P N 1003310 Tension catch strike P N 1023167 M3 x 0 5 6g x 12 screw P N 1004124 Color display main PCB cable not shown P N 1016006 Overlay to MMI PCB cable not shown P N 1003311 Transition PCB P N 1018752 Adapter PCB P N 1018753 Color display cable P N 1018334 Backlight inverter cable P N 1018336 Original 10 4 in color LCD P N 10063...

Page 269: ...012087 Crossover solenoid SOL1 assembly P N 1011126 O ring P N 500 1000 24 M5 x 12 screws 3 not shown P N 530 1000 37 Oxygen flow sensor P N 1001339 Sensor PCB to oxygen flow sensor cable P N 610 1000 06 Clamp P N 500 1000 61 Oxygen inspiratory port P N 261 1001 25 M5 x 10 screw P N 530 1000 29 Oxygen inspiratory port P N 261 1001 25 External O ring P N 500 1000 13 Internal O ring not shown P N 50...

Page 270: ...lator Replacement Parts List Oxygen water trap assembly P N 1001336 Elbow fitting NPT P N 1002771 Oxygen adapter male NPT P N 1002785 M4 x 16 screw P N 530 1000 60 Oxygen water trap filter P N 1001311 Water trap bracket P N 261 1000 96 M4 x 10 screw P N 530 1000 47 20 x 3 8 screw P N 530 1000 61 ...

Page 271: ...bly new P N 1001328 remanufactured P N 1007702 1 8 in ID silicone tube P N 364 1000 03 Check valve 5 CV5 P N 365 1000 00 Hose clamp P N 1022505 Blower to coil silicone tube P N 364 1000 11 Air valve assembly P N 1001327 Mesh cup not shown P N 1009121 Coil to air valve tube P N 1000060 Thermostat P N 1002495 Cooling coil assembly P N 1006461 Cooling coil fan P N 1000022 Grommet P N 1000010 Blower s...

Page 272: ... gasket P N 261 1001 75 Blower mounting bracket original blower only P N 261 1001 71 M4 hex nut 4 P N 520 1000 07 Blower inlet filter P N 261 1001 42 M4 x 12 screw 5 not shown P N 530 1000 33 M4 flat washer 5 not shown P N 550 1000 11 Blower filter cover P N 261 1001 19 Muffler baffle assembly P N 1011052 8 in tie wrap 5 P N 500 1000 52 in I D silicone tubing P N 364 1000 11 Clamp P N 500 1000 61 ...

Page 273: ...ng not shown P N 500 1000 12 Exhalation valve assembly P N 1001321 Exhalation valve outlet port P N 1007132 Check valve 4 CV4 P N 1006548 O ring P N 500 1000 10 O ring P N 500 1000 14 M5 x 50 screw P N 530 1000 53 M5 x 10 mm screw P N 530 1000 03 8 in tie wrap 2 P N 500 1000 62 Sensor PCB to exhalation flow sensor cable P N 610 1000 04 M4 x 12 hex bolt 4 P N 1013448 Ground wire P N 1001016 1 8 in ...

Page 274: ...N 1006463 Three station solenoid updated P N 1009315 Poppet only P N 1005999 M4 x 12 mm screw P N 530 1000 07 Check valve 3 CV3 P N 1006548 O ring P N 500 1000 11 Inspiratory outlet port P N 561 1000 52 Safety valve kit P N 1006465 1 8 in I D silicone tubing P N 364 1000 03 M3 x 16 mm screw P N 530 1000 42 Ground wire P N 1001016 Inspiratory module set screw P N 1010783 PRV retaining screw P N 261...

Page 275: ...wn P N 1014415 15 pin dust cover P N 1001212 M3 x 13 screw P N 530 1000 48 M3 split washer not shown P N 550 1000 18 AC distribution panel assembly P N 1000045 Humidifier outlet cover P N 1010785 M3 x 8 mm screw 9 P N 530 1000 58 M3 flat washer 10 P N 550 1000 02 Circuit breaker cover kit with label P N 1019130 Circuit breaker 10A P N 1003733 Circuit breaker humidifier 4A P N 1003732 M3 x 12 mm sc...

Page 276: ...Esprit Ventilator Replacement Parts List LX 200 Cart Hose Hook 1001727 Post 1001739 Non Locking Caster 1001744 Locking Caster 1001743 Base 1001742 Handle 1001729 End Cap 1001749 Deck Plate1001726 Bumper 1001745 Hardware Kit LX 200 1001747 Not shown Shipping Box LX 200 1002472 Not shown ...

Page 277: ...tion 10 4 in color 1020175 Adapter USB to serial 1022895 Air valve assembly 1001327 Alarm backup with cable 1012962 Alarm high volume primary 1003875 Alarm standard primary 1002511 Analog PCB 1001343 Battery lithium 2 1 Ah 3 6 V 1000658 Blower assembly new 1001328 Blower assembly remanufactured 1007702 Blower motor controller PCB 1017857 Cable 10 4 in display to main PCB 1016006 Cable MMI PCB to o...

Page 278: ... 1001339 Fuse power supply F1 10 A 250 V 1005091 Fuse power supply F2 16 A 250 V 1009110 Heated filter assembly English 1001269 Heated filter door assembly English 1004688 Heater filter sleeve assembly 1006358 Inspiratory module assembly 1012086 Main PCB 1034721 Mesh cup 1009121 MMI PCB 1026559 Motor controller PCB 1001341 Muffler assembly 1006464 O ring exhalation valve outlet port 500 1000 10 O ...

Page 279: ...f valve 1005999 Power supply assembly 1018246 Pressure relief valve kit 1006463 Rail assembly side both sides complete 1006462 Rotary encoder optical 443 1000 00 Safety valve kit 1006465 Sensor PCB 1001353 Set screw inspiratory module 1010783 Switch on off 440 1000 00 Three station solenoid updated 1009315 Tie wrap 11 4 in 500 1000 65 Tie wrap 3 1 in 500 1000 66 Tie wrap 8 in 100 per package 500 1...

Page 280: ... GUI front panel overlay 1006582 Accessory kit Esprit ventilator 1005774 Actuator rod 261 1000 23 Adapter 22mm OD both ends 1002505 Adapter high pressure oxygen hose Italy 1002558 Adapter male oxygen SIS x NPT domestic 1002785 Adapter oxygen sensor silicone 1001736 Adapter O2 regulator test 1001376 Adapter parallel port DS1410E 1004644 Adapter PCBA 2nd generation 10 4 in display attaches to main P...

Page 281: ...bly Hudson Concha IV humidifier 1002228 Bracket 10 4 in display mounting 1004979 Bracket alarm 1002496 Bracket alarm top 1003878 Bracket blower mount 261 1001 71 Bracket brace anti rotation connects to enclosure brace 261 1001 72 Bracket coalescent filter water trap 261 1000 96 Bracket display knob 261 1000 93 Bracket humidifier wall table 1002901 Bracket mounting arm 1002497 Bracket oxygen cylind...

Page 282: ...Cable MMI PCB to intensity control potentiometer 610 1000 16 Cable MMI PCB to on off switch 610 1000 12 Cable MMI PCB to overlay 1003311 Cable MMI PCB to primary alarm connector 610 1000 14 Cable MMI PCB to touchscreen 1003310 Cable MMI PCB to volume control potentiometer 610 1000 15 Cable null modem 9 pin 1022815 Cable null modem 9 pin NICO Esprit interface 1018292 Cable nurse call alarm Lifecare...

Page 283: ... backlight inverter PCB 1006359 Communications 2 COM2 option field upgrade kit Communications and COM2 options cannot both be installed on a ventilator at the same time 1015725 Communications COM1 option field upgrade kit Communications and COM2 options cannot both be installed on a ventilator at the same time 1010525 Conductive foil top enclosure 261 1001 57 Connector 22mm barb polysulfane water ...

Page 284: ...he same time 1015674 Enable button Communications COM1 option Communications and COM2 options cannot both be installed on a ventilator at the same time 1010524 Enable button Flow Trak 1019027 Enable button Graphics option 1006357 Enable button Respiratory Mechanics option 1012205 Enable button Trending option 1013445 Enable button Neonatal option 1016844 Enable button NICO Esprit interface NICO Es...

Page 285: ...ing vent tube tee 3 4 in 500 1000 56 Flex arm two section gooseneck CE 1003781 Flow sensor air exhalation 1001338 Flow sensor oxygen 1001339 Flow Trak option field upgrade kit English 1019026 Fuse ceramic 25 A 250 V 1013498 Fuse power supply F1 10 A 250 V 5 x 20 mm 1005091 Fuse power supply F2 16 A 250 V 5 x 20 mm 1009110 Gasket blower 261 1001 75 Gasket EMI copper finger strips 500 1000 41 Gasket...

Page 286: ...pressure DISS 1001664 Hose oxygen high pressure SIS Australia 1001659 Hose oxygen high pressure USISO China Singapore 1002556 Inspiratory module assembly 1012086 Inverter PCB 9 5 in display only 1001350 Inverter PCB Original 10 4 in display 1005514 Inverter PCB 2nd generation 10 4 in display 1019368 Knob control rotary encoder 330 1000 01 Knob potentiometer intensity or alarm volume 330 1000 04 KR...

Page 287: ...000283 Language insert top row Japanese 1000275 Language insert top row Portuguese 1000285 Language insert top row Spanish 1000279 Language insert top row Chinese 1024309 Language insert top row French 1022635 LCD assembly color with backlight inverter PCB 1006359 LCD assembly color 2nd generation 1019369 LOCTITE 222MS thread locker 200 1000 00 LOCTITE 4013 1002571 Main PCB 1034721 Main PCB cushio...

Page 288: ... ground lug 520 1000 04 O ring 2 011 oxygen valve solenoid 1 500 1000 37 O ring 2 012 oxygen valve 500 1000 24 O ring 2 020 oxygen valve exhalation valve flow sensors 500 1000 14 O ring 2 021 exhalation valve flow sensors inspiratory module air valve heated filter assembly 500 1000 13 O ring 2 022 exhalation valve outlet port air valve 500 1000 10 O ring 2 023 inspiratory module 500 1000 11 O ring...

Page 289: ...ower cord Australia New Zealand 1002585 Power cord Italy 1002589 Power cord U S 1004981 Power supply assembly 1018246 Power supply exhaust port 261 1001 59 Power supply shroud 1010780 Pressure relief valve kit 1006463 Preventive maintenance kit 12 500 hour 1001733 Preventive maintenance kit annual 1034840 Rail assembly side both sides complete 1006462 Respiratory Mechanics option field upgrade kit...

Page 290: ...aches oxygen sensor connector 530 1000 28 Screw M3 x 10 mm attaches GUI LCD 530 1000 02 Screw M3 x 12 attaches vent port elapsed time meter AC distribution panel 530 1000 59 Screw M3 x 16 mm attaches solenoid 1 three station solenoid inspiratory module pressure relief valve poppet 2nd generation color display transition PCBA 530 1000 42 Screw M3 x 5 mm attaches MMI PCB AC distribution panel L brac...

Page 291: ...ir valve original power supply shroud front bulkhead flow sensor clamps side rails 530 1000 29 Screw M5 x 10 attaches enclosure brace lower bulkhead 1000135 Screw M5 x 12 attaches oxygen regulator 530 1000 37 Screw M5 x 12 mm attaches main PCB power supply 530 1000 19 Screw M5 x 16 short screws that attach side rails to top enclosure bottom enclosure to top enclosure 530 1000 62 Screw M5 x 25 long...

Page 292: ...6462 Side rail cap left 261 1001 29 Side rail cap right 261 1001 30 Spacer 6 mm round x 20 mm L aluminum Backup Alarm plate 1000035 Spacer GUI left bottom 261 1000 74 Spacer GUI left top 261 1001 38 Spacer GUI right 261 1000 73 Spacer hex 5 16 2nd generation color display 1018992 Spacer silicone PCMCIA port cover 1014415 Spring 3 wave 22 lb load pressure relief valve 1001210 Spring compression 22 ...

Page 293: ...d 1 to solenoid 2 364 1000 08 Tubing in ID split loom flexible wire protection sheath 1002823 Tubing 3 8 in ID split loom flexible wire protection sheath 1002824 Tubing 5 8 in ID x 1 8 in wall natural silicone vent manifold 364 1000 14 Tubing corrugated cooling coil to blower valve 1000060 Tubing corrugated inspiratory exhaust to tee fitting 1000015 Tubing translucent unreinforced silicone 1 8 in ...

Page 294: ... 11 Washer flat M5 10 mm OD lower bulkhead enclosure brace side rails with four bottom enclosure screws 550 1000 00 Washer lock 4 40 valve or gear covers all DB style connectors 550 1000 23 Washer lock M3 cooling coil fan AC distribution panel 10 4 in GUI 550 1000 14 Washer lock M4 enclosure brace GUI shield plate front bulkhead 550 1000 17 Washer lock M5 used with all enclosure screws 550 1000 24...

Page 295: ...Schematics for EST This appendix illustrates the tests within extended self test EST Block Patient Wye Test 1 Step 2 The purpose of this step is to verify that the patient is not connected Diagnostic code 3152 could occur if a neonatal circuit is in use Red air flow Blue O2 flow Black no flow ...

Page 296: ...he purpose of this step is to relieve residual pressure in the system and is a transparent continuation from step 2 Diagnostic code 3152 could occur if neonatal circuit is in use and the Neonatal Option is not installed or if Neonatal has not been selected at the start of EST Red air flow Blue O2 flow Black no flow ...

Page 297: ...Service Manual Respironics Inc A 3 Block Patient Wye Test 1 Step 4 The purpose of this step is to verify that the wye is blocked Diagnostic code 3131 indicates that the ventilator cannot pressurize the circuit Red air flow Blue O2 flow Black no flow ...

Page 298: ...o autozero the inhalation and exhalation pressure transducers at ambient pressure This step averages eight readings which must be within 0 8 cmH2O of each other Diagnostic code 3156 indicates an inhalation pressure transducer PT3 autozero failure Diagnostic code 3157 indicates an exhalation pressure transducer PT2 autozero failure Red air flow Blue O2 flow Black no flow ...

Page 299: ...vice Manual Respironics Inc A 5 Safety Valve Test 2 Step 1 This step charges the circuit to verify that the system is closed Diagnostic code 3106 occurs if the ventilator cannot pressurize the system to 50 cmH2O Red air flow Blue O2 flow Black no flow ...

Page 300: ... Respironics Inc REF 580 1000 02 G Safety Valve Test 2 Step 2 This step de energizes safety solenoid SOL2 to verify that the safety valve opens Diagnostic code 3130 indicates that the safety valve did not open Red air flow Blue O2 flow Black no flow ...

Page 301: ...espironics Inc A 7 Blower Test 3 Step 1 This step turns off the blower switch on the blower controller PCB to verify that the blower stops when the switch is turned off Diagnostic code 3118 occurs if the blower does not stop Red air flow Blue O2 flow Black no flow ...

Page 302: ...0 02 G Blower Test 3 Step 2 This step turns the blower switch back on and the digital to analog converter DAC on the analog PCB off to verify that the blower stays off Diagnostic code 3119 indicates a blower DAC failure on the analog PCB Red air flow Blue O2 flow Black no flow ...

Page 303: ...ygen Supply Test 4 Step 1 This step prompts the operator to connect oxygen to check the function of the oxygen pressure switch PS1 Diagnostic code 3111 indicates that the PS1 is open This can occur if the PS1 connector on the sensor PCB is faulty Red air flow Blue O2 flow Black no flow ...

Page 304: ...st 4 Step 2 This step prompts the operator to disconnect oxygen to verify that the oxygen pressure switch PS1 opens Diagnostic code 3112 indicates that PS1 is closed This can occur if oxygen is not connected or if the PS1 connection or the sensor PCB is faulty Red air flow Blue O2 flow Black no flow ...

Page 305: ...izes the circuit with air oxygen is disconnected to verify that the crossover solenoid operates properly when energized Diagnostic code 3112 occurs if oxygen is not disconnected Diagnostic code 3117 indicates a crossover circuit fault Diagnostic code 3119 occurs if the blower does not turn off Red air flow Blue O2 flow Black no flow ...

Page 306: ...EF 580 1000 02 G Crossover Circuit Test 5 Step 2 This step pressurizes the circuit with oxygen to verify that the crossover solenoid SOL1 operates properly when de energized Diagnostic code 3117 indicates a probable SOL1 failure Red air flow Blue O2 flow Black no flow ...

Page 307: ...ironics Inc A 13 Crossover Circuit Test 5 Step 3 This step opens the blower valve and pressurizes the circuit with oxygen to verify that the air system check valve CV2 functions properly Diagnostic code 3109 indicates a CV2 leak Red air flow Blue O2 flow Black no flow ...

Page 308: ...ns and oxygen flows to verify the correct oxygen valve control and the accuracy of oxygen and exhalation flow sensor readings Diagnostic codes 3102 3104 and 3126 indicate that oxygen flow rates are out of range Diagnostic codes 3146 3147 and 3148 indicate that the oxygen valve stepper motor positions are out of range Red air flow Blue O2 flow Black no flow ...

Page 309: ...7 Step 1 This step establishes 100 oxygen at 200 LPM for one second and 1 LPM for two minutes to calibrate the oxygen sensor Diagnostic code 3113 indicates a bad oxygen sensor or oxygen sensor cable The ventilator must pass EST following oxygen sensor replacement Red air flow Blue O2 flow Black no flow ...

Page 310: ...correct air valve control and accuracy of air and exhalation flow sensor readings Diagnostic code 3103 indicates that air flow rates are out of range Diagnostic code 3125 indicates that the air and flow sensor difference is out of range Diagnostic codes 3143 3144 and 3145 indicate that the air valve stepper motor position is out of range Red air flow Blue O2 flow Black no flow ...

Page 311: ...y that the pressure relief valve PRV functions properly Diagnostic code 3120 indicates that the PRV cracking pressure is too high 170 cmH2O Diagnostic code 3121 indicates that the PRV cracking pressure is unstable 20 cmH2O difference between three readings Diagnostic code 3122 indicates that the PRV cracking pressure is out of range 160 cmH2O or 120 cmH2O Red air flow Blue O2 flow Black no flow ...

Page 312: ...s to verify accurate control Diagnostic code 3149 indicates that the exhalation valve stepper motor open position is out of range Diagnostic code 3150 indicates that the exhalation valve stepper motor midpoint position is out of range Diagnostic code 3151 indicates that the exhalation valve stepper motor closed position is out of range Red air flow Blue O2 flow Black no flow ...

Page 313: ...t pressure levels to verify that the exhalation valve can control PEEP accurately Diagnostic code 3108 indicates that exhalation pressure is out of range This can be due to incorrect altitude setting damaged exhalation filter nonstandard circuit size or faulty exhalation valve stepper motor controller PCB Red air flow Blue O2 flow Black no flow ...

Page 314: ...ependent sub tests Diagnostic code 3106 indicates a leak in the circuit that prevents the circuit from being pressurized Diagnostic code 3107 occurs if a leak rate is excessive Diagnostic code 3125 occurs if PT2 and PT3 disagree by 3 cmH2O Diagnostic code 3128 occurs if calculated compliance is 0 5 or 9 0 mL cmH2O Diagnostic code 3129 indicates a leak in the circuit that is out of range Red air fl...

Page 315: ... Test 11 Step 2 This step opens the safety valve by de energizing SOL2 to verify that inspiratory non rebreathing check valve CV3 is operating correctly Diagnostic code 3110 indicates a CV3 leak possibly due to CV3 orientation or a loose outlet port set screw Red air flow Blue O2 flow Black no flow ...

Page 316: ...step establishes 100 LPM air flow and measures pressure at the inspiratory pressure transducer PT3 to check the back pressure of all components downstream of the inspiratory pressure transducer Diagnostic code 3105 indicates that exhalation flow is out of range 90 LPM or 110 LPM Red air flow Blue O2 flow Black no flow ...

Page 317: ...connected the system establishes 100 LPM air flow and again measures pressure at PT3 The second reading is subtracted from the first to calculate the back pressure which must be between 5 and 15 cmH2O Diagnostic code 3127 indicates an out of range back pressure 5 cmH2O or 15 cmH2O difference from reading with exhalation limb attached Red air flow Blue O2 flow Black no flow ...

Page 318: ...Appendix A A 24 Esprit Ventilator Service Manual Respironics Inc REF 580 1000 02 G This page is intentionally blank ...

Page 319: ...REF 580 1000 02 G Esprit Ventilator Service Manual Respironics Inc B 1 Appendix B Field Communications Save field communications in this section ...

Page 320: ...Appendix B B 2 Esprit Ventilator Service Manual Respironics Inc REF 580 1000 02 G This page is intentionally blank ...

Page 321: ...REF 580 1000 02 G Esprit Ventilator Service Manual Respironics Inc C 1 Appendix C Respi Link Save Respi Link information in this section ...

Page 322: ...Appendix C C 2 Esprit Ventilator Service Manual Respironics Inc REF 580 1000 02 G Respi Link This page is intentionally blank ...

Page 323: ...escription 3 17 performance verification test 8 25 8 28 troubleshooting 8 45 Altitude set See Diagnostic Mode Analog output chart recorder port pinout 7 12 8 27 Analog PCB See Printed Circuit Boards PCBs B Back panel illustrated parts list 11 11 Back Pressure Test 5 30 Backlight inverter PCB See Printed Circuit Boards PCBs Battery Backup battery Confirmation See Diagnostic Mode description 3 15 pe...

Page 324: ...stic Mode DC DC converter PCB See Printed Circuit Boards PCBs Delivery system description 3 3 Diagnostic codes 1012 troubleshooting 6 24 6 26 5000 troubleshooting 6 27 6 28 Continuous built in test 6 18 6 21 Extended Self Test EST 6 7 6 18 Flow sensor faults 6 23 6 24 Power On Self Test POST 6 2 6 3 Power supply failures 6 22 Short Self Test SST 6 3 6 7 Software faults 6 22 Diagnostic Mode Altitud...

Page 325: ...Bs Extended Self Test EST as part of performance verification 8 14 Pneumatic schematics A 1 A 23 See also Diagnostic Mode External battery description 3 16 performance verification testing 8 38 8 39 F F3 Heated exhalation filter See Filter Filter Air inlet replacing 9 3 Bacteria Back Pressure test 5 30 Blower inlet description 3 3 replacing 9 3 Cooling fan 3 3 Heated exhalation F3 description 3 7 ...

Page 326: ...User Interface GUI 9 5 in description 3 16 illustrated parts list 11 3 11 4 Intensity and volume potentiometers 9 25 LED indicator assembly 9 31 replacing 9 19 9 21 9 30 Rotary encoder 9 27 H Hardware screen See Diagnostic Mode Heated exhalation filter F3 See Filter High internal oxygen See Alarms Humidifer receptacle rotation 9 42 I Increased minimum alarm volume harness See Alarms Inspiratory ma...

Page 327: ...ification test 8 31 8 33 troubleshooting 8 45 Oxygen flow accuracy performance verification test 8 18 troubleshooting 8 43 Oxygen motor controller PCB See Printed Circuit Boards PCBs Oxygen regulator assembly replacing 9 69 9 71 Oxygen Sensor OS description 3 6 troubleshooting 5 29 Oxygen valve assembly replacing 9 67 9 68 Oxygen water trap assembly replacing 9 72 P PEEP system performance verific...

Page 328: ...description 3 14 replacing 9 44 Sensor description 3 14 LEDs 3 14 replacing 9 5 Voltage indicators 5 29 VGA controller description 3 13 replacing 9 44 PT2 See Exhalation pressure transducer PT2 PT3 See Inspiratory pressure transducer PT3 R Remote alarm See Alarms Repair Parts List 11 16 11 30 Returning ventilator to operation See Ventilator operation Rotary encoder description 3 16 See also Graphi...

Page 329: ...ription 3 5 troubleshooting 5 20 Three station SOL2 SOL3 SOL4 replacing 9 64 T Technical Assistance 10 1 Test equipment Recommended for Esprit servicing 1 2 Three station solenoid See Solenoid Time format See Diagnostic Mode Tools Recommended for Esprit servicing 1 2 Top enclosure See Enclosures Touch frame See Graphical User Interface GUI 9 5 in to 2nd Generation 10 4 in Transducers See Exhalatio...

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