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Covidien Puritan Bennett 700 Series Service Manual

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700 Series Ventilator Systems

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Summary of Contents for Covidien Puritan Bennett 700 Series

Page 1 Service Manual Puritan Bennett 700 Series Ventilator Systems...
Page 2 To obtain information about a warranty, if any, contact Covidien Technical Services at 1.800.635.5267 or your local representative. Purchase of this instrument confers no express or implied license under any Covidien patent to use the instrument with any ventilator that is not manufactured or licensed by Covidien.
Page 3 Nothing in this manual shall limit or restrict in any way Covidien’s right to revise or otherwise change or modify the equipment (including its software) described herein, without notice. In the absence of an express, written agreement to the contrary, Covidien has no obligation to furnish any such revisions, changes, or modifications to the owner or user of the equipment (including its software) described herein.
Page 4 700 Series Ventilator System. It is intended for use by certified biomedical engineering technicians or personnel with equivalent experience and training in servicing this type of equipment. The user should complete the Covidien training class geared specifically to the 740 or 760 Ventilator System.
Page 5 Preface Warning To avoid a fire hazard, keep matches, lighted cigarettes, and all other sources of ignition (e.g., flammable anesthetics and/or heaters) away from the 700 Series Ventilator System and oxygen hoses. Do not use oxygen hoses that are worn, frayed, or contaminated by combustible materials such as grease or oils.
Page 6 The 700 Series Ventilator System is warranted against defects in material and workmanship in accordance with Covidien Medical Equipment Warranty for a period of one year from the time of sale. To ensure the validity of the warranty, be sure to keep a maintenance record.
Page 7 Preface Symbols and labels These symbols and labels appear on the 700 Series Ventilator System: Power switch positions per IEC 601-1. ”I” represents ON position; “O” represents OFF position. Refer to manual per IEC 601-1. When this symbol appears on product, it means “Refer to documentation for information.”...
Page 8 Preface Exhaust port connector EXHAUST Inspiratory limb connector PATIENT Expiratory limb connector FROM PATIENT Oxygen inlet port label 40 - 90 psi (275 - 620 kPa) Use 50 psi (345 kPa) = 160 L/min (at STPD) Air intake label WARNING: AIR INTAKE - DO NOT OBSTRUCT.
Page 9 Preface Back panel label (740) 7-00311 Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A...
Page 10 Preface Back panel label (760) 7-00312 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 11: Table Of Contents
ECTION Table of Contents General information How to use this manual..................... 1-1 Safety .......................... 1-1 General description....................1-2 Configuration information..................1-4 Accessories........................1-4 Specifications......................1-4 Manufacturer’s Declaration ..................1-9 Tools, equipment, and service materials ..............1-15 Periodic maintenance ....................1-18 1.10 Service kits ........................
Page 12 Table of Contents 2.3.3 External battery ..................2-47 2.3.4 Pressure solenoid PCB ................. 2-48 2.3.5 Backup alarm driver..................2-51 2.3.6 Controller PCB ..................... 2-51 2.3.7 User interface (UI) ..................2-55 2.3.8 Miscellaneous electronic parts ..............2-59 2.3.8.1 Speaker....................2-59 2.3.8.2 Piezo alarm.....................
Page 13 Table of Contents Service and utility functions Introduction ....................... 4-1 4.1.1 Accessing the service or utilities functions ..........4-1 4.1.2 Summary of functions................... 4-2 4.1.3 Navigating the Service and Utilities menus..........4-2 4.1.4 About the test and alert logs and EST test results........4-4 Service functions ......................
Page 14 Table of Contents Diagnostic codes How to use this chapter .................... 6-1 About software errors ....................6-2 About ventilator status (13000 series) codes............6-2 List of codes........................ 6-2 6.4.1 Error code 1101 ..................... 6-2 6.4.2 Error code 06027 ................... 6-3 6.4.3 Error code 09169 ...................
Page 15 Table of Contents User interface (UI) assembly (lid) ................8-14 8.5.1 Opening and propping lid................8-14 8.5.2 Removing/installing lid ................8-14 8.5.3 Knob and rotary encoder ................8-16 8.5.4 UI display PCB....................8-17 8.5.5 LCD panel (message window) ..............8-18 8.5.6 Keyboard assembly ..................
Page 16 Table of Contents 8.10 Cable management bar, PCBs, speaker, and piezo alarm ........8-45 8.10.1 Speaker ......................8-45 8.10.2 Piezo alarm....................8-46 8.10.3 Pressure solenoid PCB and controller PCB..........8-46 8.10.3.1 Removing/installing pressure solenoid PCB ......... 8-46 8.10.3.2 Removing/installing backup alarm PCB..........8-47 8.10.3.3 Determine PSOL PCB revision..............
Page 17 Table of Contents Ventilator head assembly ..................9-20 9.10 Oxygen hose adapters .................... 9-27 9.11 Label kit ........................9-28 9.12 Inspiration manifold assembly ................9-30 9.13 Oxygen regulator and oxygen solenoid assembly ..........9-32 9.14 Exhalation assembly ....................9-34 9.15 Cable management bar, PCBs, speaker, and piezo alarm ........9-37 9.16 PEEP pump and reservoir ..................
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Page 19 ECTION Figures Figure 1-1. 700 Series Ventilator System ..........1-3 Figure 1-2.
Page 20 Figures Figure 2-44. Rotary encoder with knob ..........2-58 Figure 2-45.
Page 21 Figures Figure 8-18. Removing Communications option assembly ....... . . 8-23 Figure 8-19.
Page 22 Figures Figure 8-65. Main ventilator head harness connections ........8-76 Figure 9-1.
Page 23 ECTION Tables Table 1-1. Specifications ............1-4 Table 1-2.
Page 24 This page intentionally blank. xxiv 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 25: General Information
ECTION General information This chapter provides introductory information on the Puritan Bennett™ 700 Series Ventilator System. It contains a description of the ventilator, including specifications, required tools and test equipment, schedule of maintenance, and controls and indicators. 1.1 How to use this manual The 700 Series Ventilator System Service Manual is intended to be used in conjunction with the 700 Series Ventilator System Operator’s Manual.
Page 26: General Description
General information Ventilator maintenance may involve exposure to hazardous materials, equipment, and conditions such as: possible electrical shock; pressurized gas; transmittable diseases; and fire, which could result from an oxygen-enriched environment and easily ignitable material. Before servicing the 700 Series Ventilator System, be aware of possible hazards and necessary precautions to be taken.
Page 27 General information Figure 1-1. 700 Series Ventilator System Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A...
Page 28: Configuration Information
Ventilator breathing circuit. A variety of reusable Puritan Bennett™ circuits, adult and pediatric, with and without water traps, and with and without heated wire, is available. Contact your Covidien representative. In addition, other breathing circuits may be used with the ventilator, provided they ensure that the ventilator breathing system meets the specifications stated in Table 1-1 (see Results of ventilator breathing system testing).
Page 29 General information Table 1-1: Specifications (continued) Pneumatic specifications Oxygen inlet supply Pressure: 40 to 90 psi (275 to 620 kPa) Flow: Maximum of 160 L/min at standard temperature and pressure, dry (STPD) Fitting type: DISS male, DISS female, NIST, Air Liquide™*, Australian type, or Dräger™* (depending on country and configuration) Oxygen regulator bleed: Up to 3 L/min Warning...
Page 30 General information Table 1-1: Specifications (continued) Results of ventilator Resistance ranges: breathing system testing Adult circuits: (using circuits identified Inspiratory resistance at 60 L/min: 4.8 to 5.7 cmH O (ventilator powered off), for use with 700 Series 2.0 cmH O maximum at 0 cmH O CPAP.
Page 31 General information Table 1-1: Specifications (continued) Internal battery 24 V DC, 7 Ah Operating time (for a new, fully charged battery at 20 °C and sea level): • Approximately 2.5 hours under nominal conditions (nominal conditions: tidal volume 0.6 L, respiratory rate 15/min, PEEP/CPAP 5 cmH O, peak flow 60 L/min, plateau 0 s;...
Page 32 FIO levels will result in shorter sensor life.) NOTE: To achieve compliance with the more rigid requirements for oxygen monitoring (as set forth in ISO 7767), Covidien recommends using an external monitor that meets that standard. Service specifications Self-test capabilities Automatic power-on self-test (POST): Verifies integrity of electronics.
Page 33: Manufacturer's Declaration
General information Table 1-1: Specifications (continued) Other built-in service Serial port enabling (for file transfer); loopback test for Communications option serial capabilities ports; battery load test; calibration of oxygen sensor, oxygen regulator pressure transducer, and PEEP pump; equalization of exhalation pressure transducer/cylinder pressure transducer (P ), input and viewing of calibration constants;...
Page 34 General information Table 1-2: Electromagnetic Emissions The 700 Ventilator System is intended for use in the electromagnetic environment specified below. The customer or the user of the 700 Ventilator System should assure that it is used in such an environment. Emissions Test Compliance Electromagnetic environment–guidance...
Page 35 General information Table 1-3: Electromagnetic Immunity (continued) The 700 Series Ventilator System is intended for use in the electromagnetic environment specified below. The customer or the user of the 700 Series Ventilator System should assure that it is used in such an environment. Electromagnetic environment–...
Page 36 General information Table 1-4: Electromagnetic Immunity-conducted and radiated RF The 700 Series Ventilator System is intended for use in the electromagnetic environment specified below. The customer or the user of the The 700 Series Ventilator System should assure that it is used in such an environment. Electromagnetic environment–...
Page 37 General information Table 1-4: Electromagnetic Immunity-conducted and radiated RF Electromagnetic environment- Immunity test IEC 60601-1-2 test level Compliance level guidance where is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and is the recommended separation distance in meters (m) Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey , should be less than the compliance level in each frequency range...
Page 38 International Electromagnetic Compatibility (EMC) standards, Covidien recommends using shielded cables for these applications. Warning The use of accessories and cables other than those specified, with the exception of parts sold by Covidien as replacements for internal components, may result in increased emissions or decreased immunity of the 700 Series Ventilator System.
Page 39: Tools, Equipment, And Service Materials
Always use metric tools to remove metric fasteners. Using nonmetric tools to remove metric fasteners can damage fasteners. Table 1-7: Tools, equipment, and service materials Manufacturer and model or Description Where used Covidien part number Hex drivers, 1.5-mm, 2.5-mm, 3-mm, Local supplier Various service procedures 4-mm, and 5-mm Hex driver, 1/16-in.
Page 40 General information Table 1-7: Tools, equipment, and service materials (continued) Manufacturer and model or Description Where used Covidien part number Flat-bladed screwdriver Local supplier Various service procedures Flat-bladed screwdriver with long Local supplier Piston/cylinder assembly retaining (>20-cm) shank screws Phillips screwdriver, no. 1...
Page 41 Manufacturer and model or Description Where used Covidien part number Warning Due to excessive restriction of the Air Liquide™*, Australian, and Dräger™* hose assemblies, reduced FIO levels may result when oxygen inlet pressures < 50 psi (345 kPa) are employed. Make sure oxygen inlet pressure is ≥...
Page 42: Periodic Maintenance
General information 1.9 Periodic maintenance Table 1-8 lists the periodic maintenance activities (other than patient system maintenance) required for the 700 Series Ventilator. The hours remaining until service is due are displayed when POST is run and through the Service summary menu option (see the Operator’s Manual).
Page 43: Service Kits
General information 1.10 Service kits Table 1-9 lists the 700 Series Ventilator service kits. Chapter 9 lists the mounting kits available for the ventilator. Table 1-9: Service kits Part no. Description G-061166-00 15,000-hour preventive maintenance kit. See Chapter 9 for contents. G-061167-00 30,000-hour preventive maintenance kit.
Page 44 General information Figure 1-2. Controls and indicators on 740 Ventilator keyboard 1-20 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 45 General information Figure 1-3. Controls and indicators on 760 Ventilator keyboard Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 1-21...
Page 46: Ventilator Settings
General information 1.11.1 Ventilator Settings The VENTILATOR SETTINGS section of the keyboard allows you to select the ventilation mode, breath type, and settings. For more detail on ventilation modes and breath delivery, see the 700 Series Ventilator System Operator’s Manual. To change the mode and settings, select the mode, then the breath type, and then the ventilator settings.
Page 47 General information Table 1-10: 700 Series Ventilator keyboards: VENTILATOR SETTINGS (continued) Key/indicator Specifies... Range Mandatory (VCV) settings RESPIRATORY The minimum number of mandatory breaths 1 to 70 /minute (non-apnea ventilation)* RATE the patient receives per minute. 6 to 70 (apnea ventilation)* Accuracy: ±...
Page 48 General information Table 1-10: 700 Series Ventilator keyboards: VENTILATOR SETTINGS (continued) Key/indicator Specifies... Range RISE TIME The time for inspiratory pressure to rise from 5 to 100 FACTOR 0 to 95% of the target pressure level during a PCV breath. (760 only) A setting of 100 = a 100-msec rise time, and a setting of 5 = 80% of the inspiratory time or...
Page 49 General information Table 1-10: 700 Series Ventilator keyboards: VENTILATOR SETTINGS (continued) Key/indicator Specifies... Range TRIGGER Inspiratory flow required to trigger the 1 to 20 L/min SENSITIVITY ventilator to deliver a breath. (L/min) Percentage of inspired oxygen of the gas 21 to 100% delivered to the patient.
Page 50 General information Table 1-10: 700 Series Ventilator keyboards: VENTILATOR SETTINGS (continued) Key/indicator Specifies... Range INSP PAUSE Allows you to measure the patient’s compliance and resistance. An extended inspiratory pause also allows you to expand the patient’s lungs for up to 10 seconds. (760 only) Pressing INSP PAUSE momentarily causes the ventilator to wait until the end of the inspiratory phase of the current or next mandatory breath (in SPONT mode, the ventilator delivers a...
Page 51: Patient Data
General information Table 1-10: 700 Series Ventilator keyboards: VENTILATOR SETTINGS (continued) Key/indicator Specifies... Range APNEA PARAMS Lights when apnea ventilation is active. indicator Lights with PROPOSED indicator when you are setting apnea parameters, and both indicators turn off once apnea parameters are accepted. Message window Shows up to four lines of information (20 characters per line).
Page 52 General information Table 1-11: 700 Series Ventilator keyboards: PATIENT DATA (continued) Key/indicator Function Range Breath timing RATE (/min) Shows the calculated value of the total 1* to 500 /minute respiratory rate, based on the previous Accuracy: 60 seconds or 8 breaths (whichever interval is ±...
Page 53 General information Table 1-11: 700 Series Ventilator keyboards: PATIENT DATA (continued) Key/indicator Function Range SPONT MINUTE Shows the patient’s measured expiratory 0 to 99 L VOLUME (L) minute volume for all spontaneous breaths, Accuracy: based on the previous 60 seconds or ±...
Page 54: Ventilator Status
General information Table 1-11: 700 Series Ventilator keyboards: PATIENT DATA (continued) Key/indicator Function Range Volume bar Shows real-time exhaled volume in milliliters If HIGH TIDAL VOLUME setting graph (ml). Volumes are compliance-compensated < 500 ml: and corrected to BTPS. (760 only) 0 to 500 ml The active scale is determined by the HIGH Resolution: 5 ml...
Page 55: Location Of Ventilator Serial Number
Field service of the ventilator is limited to the service activities described in this manual. For field service, technical support, or information on technical training, call 1-800-635-5267 (within the USA) or contact your Covidien representative (outside the USA). Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 56: Reference Documentation
General information 1.15 Reference documentation G-061988-00 700 Series Ventilator System Operator’s Manual (Czech) G-061989-00 700 Series Ventilator System Operator’s Manual (Dutch) 10070389 700 Series Ventilator System Operator’s Manual (English) 10069629 700 Series Ventilator System Operator’s Manual (French) 10069624 700 Series Ventilator System Operator’s Manual (German) 10070843 700 Series Ventilator System Operator’s Manual (Italian) 10069633 700 Series Ventilator System Operator’s Manual (Japanese) 10069631 700 Series Ventilator System Operator’s Manual (Polish)
Page 57: Theory Of Operation
ECTION Theory of operation This chapter details the operational theory of the 700 Series Ventilator System. It begins by describing the overall operation of the ventilator and continues by describing the pneumatic system, including the individual components and their operations as subsystems. Next it describes the electrical system, including the operations of the printed circuit boards (PCBs).
Page 58 Theory of operation Initial settings and data for use by the microprocessor are entered by the operator via the user interface (UI). The data is processed by the UI microprocessor, then stored in the ventilator memory. The BD microprocessor uses this data to control the flow of gas to the patient system.
Page 59: Pneumatic System
Theory of operation 2.2 Pneumatic system The 700 Series Ventilator pneumatic system includes the following (see Figure 2-2): • Gas inlet system • Piston/cylinder system • Inspiratory manifold system • Patient system • PEEP/CPAP system • Exhalation system Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 60 Theory of operation Figure 2-2. Pneumatic system 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 61 Theory of operation Table 2-1 provides some pertinent specifications and other data for the ventilator’s pneumatic components. Table 2-1: Pneumatic component data Component Data Check valve, air intake, Opens to draw in room air. Closes during oxygen delivery to reduce inlet noise.
Page 62 Theory of operation Table 2-1: Pneumatic component data (continued) Component Data Solenoid, autozero, Three-way cylinder pressure De-energized (closed): Except when transducer is autozeroed. transducer Energized (opened): When transducer is autozeroed (upon power- on, once a minute for first 10 minutes, then hourly). Solenoid, autozero, Three-way.
Page 63: Gas Inlet System Overview
Theory of operation 2.2.1 Gas Inlet System Overview The gas inlet system, shown in Figure 2-3 and Figure 2-4, entrains room air. It also delivers externally supplied oxygen to the ventilator and regulates the oxygen to a pressure usable by the ventilator.
Page 64 Theory of operation Oxygen solenoid assembly Oxygen regulator pressure transducer Oxygen regulator Bleed port Oxygen fitting Air intake filter assembly Front view 7-00260 Oxygen regulator pressure transducer Low-flow solenoid High-flow solenoid Oxygen solenoid assembly Mixing manifold Muffler Rear view 7-00261 Figure 2-4.
Page 65 Theory of operation Oxygen regulator pressure transducer Oxygen solenoid Pressure assembly Oxygen fitting Mixing manifold Oxygen regulator Gas inlet system disassembled 7-00262 Location of gas inlet system 7-00263 Figure 2-4. Gas inlet system (2 of 2) Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 66: Gas Inlet System Components
Air Liquide™*, Australian type, and Dräger™* hose assemblies. Warning To ensure adequate oxygen delivery to the patient, use Covidien-supplied oxygen hoses only. Use of other oxygen hoses could result in inadequate or inappropriate oxygen pressures or leaks at the oxygen inlet.
Page 67 Theory of operation NOTE: To prevent depletion of oxygen supply, disconnect oxygen from ventilator when oxygen is not in use. Any time oxygen is connected, whether or not an oxygen-enriched patient mixture is selected, the oxygen regulator bleeds up to 3 L/min. The regulator has a pressure tap to permit the attachment of a fixture for oxygen regulator pressure transducer calibration.
Page 68: System Operation
Theory of operation 2.2.1.2 System operation During piston retraction, oxygen and/or room air are drawn into the cylinder. If oxygen enrichment is selected, oxygen from an external source is regulated, then supplied by either the low- or high-flow solenoid/orifice. Room air to be used in the mixture is drawn in through the air intake filter.
Page 69 Theory of operation Pressure High-flow solenoid Low-flow solenoid Bleed port 7-00242 Oxygen regulator Oxygen solenoid assembly 7-00230 7-00228 Oxygen regulator pressure transducer 7-00030 Mixing manifold Mixing manifold Mixing manifold Mixing manifold (side toward cylinder) (side away from cylinder) (side toward cylinder) 7-00031 (side away from cylinder) Figure 2-5.
Page 70: Piston/Cylinder System
Theory of operation 2.2.2 Piston/cylinder system The piston/cylinder system, shown in Figure 2-6 and Figure 2-7, draws gas from the gas inlet system for delivery to the patient. See Section 2.5 for an integrated description of how the piston/cylinder works in conjunction with the electronics. Piston/cylinder Inlet assembly...
Page 71 Theory of operation Because the piston does not contact the cylinder, there is a continuous, measurable leak while the piston/cylinder is pressurized. To compensate for this “calibrated leak”, the piston moves continuously within the cylinder. But, because the piston and cylinder have no contact, friction between the piston and cylinder is eliminated, resulting in reduced wear of piston/cylinder assembly parts, reduced electrical requirements, and enhanced responsiveness.
Page 72: Operational Description Of Piston/Cylinder System
Theory of operation 2.2.2.2 Operational description of piston/cylinder system During piston retraction, the piston draws air and/or oxygen into the cylinder through the opened inlet check valve. The optical encoder (part of the motor/encoder) reports to the motor controller circuit the motor shaft position. The motor controller circuit, in turn, determines the piston position and velocity.
Page 73 Theory of operation Motor/encoder Piston/ cylinder Optoswitches Cylinder pressure transducer Front view autozero solenoid 7-00033 Inlet check valve (translucent Outlet leaf/white check valve housing) (translucent leaf/blue housing) Side view 7-00034 Piston/ cylinder system 7-00035 Piston/cylinder system installed Figure 2-7. Piston/cylinder system Puritan Bennett™...
Page 74 Theory of operation 7-00036 Piston/cylinder assembly Encoder Motor Pinion gear 7-00037 Cylinder pressure transducer autozero solenoid Motor/encoder assembly 7-00038 Figure 2-8. Piston/cylinder system components (1 of 2) 2-18 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 75 Theory of operation Cylinder inlet check valve Cylinder outlet check valve (white housing) (blue housing) 7-00040 7-00039 NOTE: The home and end optoswitches are identical (P/N G-061255-00) 7-00041 Optoswitches installed 7-00035 Optoswitches installed Figure 2-8. Piston/cylinder system components (2 of 2) Puritan Bennett™...
Page 76 Theory of operation Optoswitch Flag Rack Pinion gear 7-00043 Figure 2-9. Motor/encoder pinion gear and rack Codewheel A Ch. A detector Emitter Decoder section Ch. B detector Codewheel B Direction of travel Velocity of travel Forward Reverse CH. A CH. A CH.
Page 77: Inspiration Manifold System
Theory of operation 2.2.3 Inspiration manifold system The inspiration manifold system, shown in Figure 2-11 and Figure 2-12, provides a conduit between the cylinder and ventilator. It also senses the temperature and oxygen percentage of the delivered gas. It includes a safety valve to vent excessive pressure. It includes a pressure tap for the inspiration pressure transducer.
Page 78: Operational Description
Theory of operation • The exhalation Positive End Expiratory Pressure/Continuous Positive Airway Pressure (PEEP/CPAP) solenoid is a three-way valve that selects the pneumatic source for piloting the exhalation valve. The solenoid is energized during all inspirations to provide exhalation valve pilot pressure via the inspiration manifold. When de-energized (during exhalation), the valve uses the pressure from the PEEP pump as its pilot source.
Page 79 Theory of operation Safety valve solenoid Poppet assembly Oxygen sensor Inspiration manifold Thermistor 7-00235 Inspiration manifold assembly disassembled Inspiration manifold assembly Location of inspiration manifold 7-00241 Figure 2-12. Inspiration manifold system Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 2-23...
Page 80 Theory of operation Inspiration port Pressure tap (to inspiration pressure transducer) Thermistor port Exhalation valve port Inspiration manifold 7-00042 7-00233 Oxygen sensor Oxygen sensor in adapter 7-00222 7-00088 Exhalation solenoid Figure 2-13. Inspiration manifold system components (1 of 2) 2-24 10070389 Rev.
Page 81: Patient System
The patient system includes the components described below; these are shown in Figure 2-15. For information on the patient tubing circuits offered by Covidien, consult the product catalog. Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 82 Theory of operation To exhalation From check valve inspiration manifold Expiratory Inspiratory filter filter Collector To patient vial 7-00092 Figure 2-14. Patient system pneumatic diagram • The inspiratory (main flow) filter (the Puritan Bennett™ D/Flex or Re/Flex Filter) helps protect the patient from contamination by the gas supplies, and helps protect the ventilator from contamination by the patient system.
Page 83 Theory of operation Inspiratory filter Expiratory filter 7-00093 7-00094 Collector vial Humidification device 7-00095 7-00096 Ventilator breathing circuit 7-00097 Figure 2-15. Patient system components Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 2-27...
Page 84: Exhalation System
Theory of operation 2.2.5 Exhalation system The exhalation system, shown in Figure 2-16 and Figure 2-17, controls and monitors the flow of the patient’s exhaled gas. From exhalation solenoid Heater assembly Exhalation Exhalation valve check valve Thermistor assembly Exhalation pressure transducer autozero solenoid From...
Page 85 Theory of operation • The exhalation valve assembly, a pneumatically actuated valve, closes during inspiration to prevent delivered gas from venting to the atmosphere. During exhalation, it opens sufficiently to maintain the operator-selected PEEP. The exhalation valve is piloted by the exhalation solenoid (in the PEEP system).
Page 86 Theory of operation Exhalation pressure transducer port Expiratory filter housing Exhalation check valve assembly 7-00101 7-00102 Knob pointed up Exhalation pressure transducer Exhalation check valve assembly autozero solenoid disassembled 7-00103 7-00104 Cross tube Flow sensor heater heater and clip and clip Exhalation heater assembly with retaining clips 7-00105 Figure 2-18.
Page 87: Operational Description
Theory of operation Exhalation flow sensor Exhalation valve assembly with tube assembly 7-00106 7-00108 Exhalation thermistor assembly 7-00107 Figure 2-18. Exhalation system components (2 of 2) 2.2.5.2 Operational description During exhalation, patient gas enters the exhalation system through the expiratory filter. The pressure of the exhaled gas causes the check valve to open.
Page 88: Peep/Cpap System
Theory of operation 2.2.6 PEEP/CPAP system The PEEP/CPAP system, shown in Figure 2-19 and Figure 2-20, regulates pressure to the exhalation valve as required to maintain PEEP/CPAP during exhalation. PEEP pump PEEP reservoir Filter Jet venturi exhalation Restrictor system 7-00110 Figure 2-19.
Page 89 Theory of operation Feedback from the exhalation pressure transducer helps the ventilator maintain the PEEP/ CPAP at the selected value. Even with a ventilator breathing circuit leak of up to 10 L/min, PEEP/CPAP can be maintained. The ventilator compensates by adjusting the piston/cylinder output.
Page 90 Theory of operation PEEP reservoir To pump From pump inlet outlet To exhalation solenoid 7-00113 Outlet Inlet PEEP pump Filter 7-00115 7-00114 Figure 2-21. PEEP/CPAP system components 2-34 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 91: Electrical System
Theory of operation 2.3 Electrical system The 700 Series Ventilator System electrical system includes the following: • Power assembly, including power input components, the power supply, the battery backup (BBU) PCB, and the power assembly fan • Internal battery • External battery •...
Page 92 Theory of operation Figure 2-23. 700 Series Ventilator System block diagram 2-36 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 93 Theory of operation Figure 2-24. Wiring diagram (1 of 2) Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 2-37...
Page 94 Theory of operation Figure 2-24. Wiring diagram (2 of 2) 2-38 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 95: Power Assembly
Theory of operation 2.3.1 Power assembly As illustrated in Figure 2-25, the power assembly includes power input components, the BBU PCB, and a recirculating fan. The harnesses shown in Figure 2-26 interconnect the parts of the power assembly. The ventilator head/power supply harness (Figure 2-27) connects the power assembly to the rest of the ventilator.
Page 96 Theory of operation BBU PCB/ ventilator head harness (to controller PCB) Rear view 7-00127 Power assembly pulled out 7-00128 Figure 2-25. Power assembly (2 of 2) 2-40 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 97: Power Input Section
Theory of operation Power switch/BBU PCB harness Internal battery harness Circuit Power breaker/ Power input Line filter/ Line filter/ Power power switch/ terminal power circuit switch/ switch power ground assembly breaker External BBU PCB harness supply wire ground harness battery harness harness wire...
Page 98 Theory of operation 2.3.1.1.2 Line filter The line filter includes an IEC-320 plug. The line filter reduces line noise to and from the ventilator. 2.3.1.1.3 Circuit breaker. The two-pole circuit breaker opens when the line current draw exceeds 4 A. 2.3.1.1.4 Power switch.
Page 99: Power Supply
Theory of operation 2.3.1.2 Power supply See Figure 2-29. The power supply outputs a constant regulated +24 V DC. It accepts input voltages in the ranges 85 to 134 V (110 V units) or 171 to 269 V (230 V units) at 45 to 65 Hz. The power supply has a single, +24 V output, which is fused on the BBU PCB.
Page 100 Theory of operation • The motor drive circuit includes power MOS FETs in a bridge configuration to drive the brushless DC motor. It limits current to the motor to prevent excessive patient wye pressure. It works in conjunction with the motor controller circuit (on the controller PCB) and the motor/encoder to provide the velocity and torque profiles capable of delivering the full range of ventilator flows and pressures.
Page 101: Power Supply Fan
Theory of operation BBU PCB Power supply fan 7-00238 Figure 2-31. BBU PCB and fan installed in power assembly 2.3.1.4 Power supply fan An internal +24 V fan (Figure 2-32) recirculates the air within the power assembly. (Figure 2-31 shows the fan installed in the ventilator.) 7-00137 Figure 2-32.
Page 102: Internal Battery
Theory of operation 2.3.2 Internal battery The lead-acid internal battery (Figure 2-33) provides a backup for the AC power. Figure 2-34 shows the internal battery installed in the ventilator. The battery provides +21 to +26 V to supply the ventilator’s electrical components. The ventilator operates from the internal battery if the power supply output is unacceptable and the external battery is not installed or not adequately charged (see Section 2.7).
Page 103: External Battery
Theory of operation Main fan External Internal battery battery connector 7-00139 Figure 2-34. Internal battery and main fan installed in ventilator 2.3.3 External battery The optional lead-acid external battery (Figure 2-35), provides backup for the AC power. It supplies +21 to +26 V to supply the ventilator’s electrical requirements. The ventilator operates from the external battery if the power supply output is unacceptable, provided the external battery is installed and adequately charged (see Section 2.7).
Page 104: Pressure Solenoid Pcb
Theory of operation 7-00236 Figure 2-35. External battery 2.3.4 Pressure solenoid PCB The pressure solenoid PCB contains these circuits: • The pressure transducer/interface circuit includes pressure transducers and supporting circuitry used to obtain pressure measurements throughout the ventilator. (See Figure 2-36 for pressure solenoid PCB and Figure 2-37 for pressure solenoid installed in ventilator.) These onboard transducers monitor these pressures: –...
Page 105 Theory of operation • The PEEP drive circuit sends a pulse-width modulated signal to control the output of the PEEP pump. • The thermistor/interface circuit includes an onboard thermistor that senses internal ventilator compartment temperature. It provides supporting circuitry for it and these additional offboard thermistors: exhalation (2 inputs), inspiration, and air flow (2 inputs).
Page 106 Theory of operation MANIFOLD Test TRANS HEAT ON connector -15V ON HEAT ON +15V ON From exhalation Inspiration +5V ON LED Exhalation Cylinder From flow sensor pressure pressure pressure exhalation (top) transducer transducer transducer flow sensor (bottom) 7-00141 Figure 2-36. Pressure solenoid PCB Backup alarm driver PCB Pressure...
Page 107: Backup Alarm Driver
Theory of operation 2.3.5 Backup alarm driver The backup alarm driver circuit, located on the backup alarm driver PCBA contains the electronics that activate the 700 ventilator backup alarm (Figure 2-24 and Figure 2-37) The backup alarm circuit provides for 120 seconds of alarm sound in the event of a failure of the +24V Bus or the +5V Vcc of the breath delivery supply.
Page 108 Theory of operation The UI section includes these circuits, which perform the indicated functions: • The CPU section includes a Motorola 68HC16 microcontroller, which operates at 16 MHz. (The microcontroller chip contains a microprocessor, clock, internal watchdog, memory, an I/O interface, and A/D converter.) Two EPROMs (Figure 2-39) totaling up to 512 KB contain the language-specific software for the UI section.
Page 109 Theory of operation EPROMs 7-00144 Figure 2-39. EPROM Table 2-2: NVRAM contents Type of data Parameter Notes Service data Ventilator serial number Service data Total number of breaths Updated every 100 breaths. Service data Hours of operation (excluding standby mode, SST, EST, calibration, and service menu operation) Service data Number of times high-flow and low-flow...
Page 110 Theory of operation Table 2-2: NVRAM contents (continued) Type of data Parameter Notes Calibration and other Number of motor quadcounts between Must be input when new piston/cylinder constants home and end positions installed. Calibration and other Oxygen mixing constants, including flows Must be input when new oxygen constants from orifices and regulator pressures...
Page 111: User Interface (Ui)
Theory of operation Table 2-2: NVRAM contents (continued) Type of data Parameter Notes Extended data Number of hours at various mean Recorded for these ranges: 0 to 9 cmH pressure ranges 10 to 19 cmH O, 20 to 29 cmH O, 30 to 39 cmH O, 40 to 49 cmH...
Page 112 Theory of operation The multiposition knob encoder (Figure 2-44) permits setting selections or changes. It operates according to the same principles as the optical encoder used with the motor (see Section 2.2.2). A knob decoder on the controller PCB determines the direction and position of the shaft based on encoder outputs.
Page 113 Theory of operation 7-00154 Figure 2-41. UI display PCB (740 shown) 7-00155 Figure 2-42. 4-line x 20-character LCD panel (message window) Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 2-57...
Page 114: Figure 2-44. Rotary Encoder With Knob
Theory of operation 7-00156 Figure 2-43. Keyboard assembly (740 shown) Knob Rotary encoder 7-00157 Figure 2-44. Rotary encoder with knob 2-58 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 115: Miscellaneous Electronic Parts
Theory of operation 2.3.8 Miscellaneous electronic parts 2.3.8.1 Speaker The speaker provides a multi-frequency alarm. (See Figure 2-45 for speaker and Figure 2-47 for installation in ventilator). The speaker volume, which has five settings, is software- controlled through the MENU key. 7-00158 Figure 2-45.
Page 116: Main Fan
Theory of operation Air flow thermistor assembly Air intake filter switch Piezo alarm Speaker 7-00160 Figure 2-47. Speaker, piezo alarm, air flow thermistor assembly, and air intake filter switch installed 2.3.8.3 Main fan The main fan (Figure 2-48 and Figure 2-34) draws air into the ventilator to cool the interior and to dissipate oxygen in the event of an oxygen leak.
Page 117: Air Flow Thermistor Assembly
Theory of operation 2.3.8.4 Air flow thermistor assembly The air flow thermistor assembly includes two thermistor beads, one mounted in the air flow and the other mounted in unmoving air. (See Figure 2-49 for air thermistor assembly and Figure 2-50 for air flow thermistor assembly installed on air intake manifold.) Readings from both thermistors are compared to determine whether air is flowing in the unit (whether the fan is operating and the fan filter is unclogged).
Page 118: Air Intake Filter Switch
Theory of operation 2.3.8.5 Air intake filter switch The air intake filter switch determines whether the air intake filter is installed. (See Figure 2-51 for air intake filer switch and Figure 2-47 for installation in ventilator). A tab on the filter engages this microswitch, which is located in the air intake filter manifold. If the air intake filter is not present, the AIR INTAKE ABSENT alarm is triggered.
Page 119: Breath Delivery
Theory of operation Motor/ encoder Piston/cylinder Encoder feedback BBU PCB Motor Motor Power drive controller supply circuit circuit Controller PCB Figure 2-52. Motor control and drive 2.6 Breath delivery The 700 Series Ventilator System delivers mandatory (volume-controlled ventilation, VCV is available on the 740 and 760 Ventilators, and pressure-controlled ventilation, PCV, is available on the 760 Ventilator only) breaths and spontaneous (pressure support ventilation or PSV) breaths.
Page 120: Figure 2-53. Breath Cycle For A Vcv Breath Without Peep
Theory of operation Exhalation piston Breath delivery retraction Exhalation valve closed Exhalation solenoid Exhalation flow 0 L/min PEEP = 10 cmH Leak compensation Compliance compensation Desired flow = 60 L/min Piston velocity Breath 7-00165 trigger Piston retraction Figure 2-53. Breath cycle for a VCV breath without PEEP 2-64 10070389 Rev.
Page 121: Figure 2-54. Breath Cycle For A Pcv Breath
Theory of operation Breath delivery Exhalation phase Exhalation valve closed Exhalation solenoid Exhalation flow Piston velocity Flow at patient wye Piston velocity ≈ -150 L/min Breath trigger Piston retraction 7-00317 Figure 2-54. Breath cycle for a PCV breath Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 122: Piston Initialization
Theory of operation 2.6.1 Piston initialization During POST, the piston is initialized to determine its position; it is important the ventilator know the piston’s position before breath delivery begins. (See Figure 2-55). To initialize the piston, the ventilator drives the piston forward until the flag on the rack intercepts the end optoswitch.
Page 123: Breath Triggering
Theory of operation 2.6.2 Breath triggering On the 700 Series Ventilator System, breaths can be ventilator-initiated, operator-initiated, and patient-initiated (see Figure 2-56): • A ventilator-initiated breath is triggered at an interval based on the RESPIRATORY RATE setting. • An operator-initiated breath is triggered in response to the MANUAL INSPIRATION key being pressed.
Page 124: Figure 2-56. Pneumatic Diagram Of Breath Triggering
Theory of operation Figure 2-56. Pneumatic diagram of breath triggering 2-68 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 125: Gas Delivery To The Patient
Theory of operation Breath delivery PEEP = 10 cmH Peak in flow to get pressure up Piston velocity ≈ -150 L/min Trigger flow Exhalation valve closed Exhalation solenoid 0 L/min Breath trigger Piston 7-00131 retraction Figure 2-57. Breath triggering and breath delivery parameters 2.6.3 Gas delivery to the patient After the breath is triggered, the piston moves forward, expelling the cylinder’s contents.
Page 126: Figure 2-58. Pneumatic Diagram Of Gas Delivery
Theory of operation Figure 2-58. Pneumatic diagram of gas delivery 2-70 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 127: Exhalation And Piston Retraction
Theory of operation Pressures on both the inspiration and exhalation sides of the ventilator breathing circuit are measured by the cylinder, inspiration, and exhalation pressure transducers during gas delivery. They are used in breath delivery calculations. During gas delivery, the oxygen side remains pressurized, but there is no flow, as the oxygen solenoids are de-energized.
Page 128: Mandatory Breathing With Delivered Volumes Less Than 250 Ml
Theory of operation If the high-flow solenoid is chosen, this solenoid is energized during the first part of the retraction period. Oxygen flows through the high-low orifice at 150 L/min, through the manifold, and into the cylinder (which is retracting at a minimum of 150 L/min). During the second part of the retraction period, the oxygen solenoid is de-energized, and only room air flows into the cylinder as the piston retracts.
Page 129: Figure 2-59. Pneumatic Diagram Of Exhalation And Piston Retraction
Theory of operation Figure 2-59. Pneumatic diagram of exhalation and piston retraction (low-flow oxygen solenoid energized) Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 2-73...
Page 130: Figure 2-60. Exhalation And Piston Retraction Parameters
Theory of operation When the exhalation valve opens, falls, then is maintained at PEEP. PEEP + 10 cmH Exhalation When the inspiratory time has solenoid passed, exhalation is triggered. The exhalation solenoid is de-energized, opening the exhalation valve. Exhalation When the exhalation valve is flow opened, exhaled flow is recorded.
Page 131: Figure 2-61. Air And Oxygen Flow During Retraction
Theory of operation High oxygen flows 150 L/min Piston retraction speed (L/min) High-flow solenoid on/off 150 L/min Oxygen flow from high-flow solenoid (L/min) 150 L/min Air flow from air intake manifold (L/min) Low oxygen flows 150 L/min Piston retraction speed (L/min) Low-flow solenoid on/off 15 L/min Oxygen flow from low-flow solenoid (L/min)
Page 132 Theory of operation Home optoswitch optoswitch Rack flag Piston starts at home position Home optoswitch optoswitch Rack flag Piston makes a small excursion to deliver a breath Home optoswitch optoswitch Rack flag Piston makes another small excursion to deliver a second breath Home optoswitch...
Page 133: Power Source Switchover
Theory of operation 2.7 Power source switchover The 700 Series Ventilator System normally operates from AC (mains) power, but it switches to battery operation if necessary. (See Figure 2-63). The ventilator switches to battery operation in these instances: • The +24V power supply output is <21 V. •...
Page 134: Figure 2-63. Power Source Switchover
Theory of operation Power switch on External battery Internal battery Is power supply output ≥21 V? output ≥21 V? output ≥21 V? Use external battery Use external battery Is power supply Is power supply output ≥21 V? output ≥21 V? Perform orderly shutdown of the ventilator and activate...
Page 135: Emergency Modes
Theory of operation 2.8 Emergency modes This section describes how the ventilator operates under several unexpected conditions, including occlusion cycling mode, a ventilator inoperative (VENT INOP) condition, and when the ventilator opens the safety valve. 2.8.1 Occlusion cycling mode If the ventilator detects an occlusion in the ventilator breathing circuit or a continuous high inspiratory pressure condition (due to an exhalation valve that does not open or an occluded flow sensor), it opens the safety and exhalation valves to vent excess pressure, then shuts them and begins occlusion cycling mode.
Page 136: Ventilator Inoperative
Theory of operation Table 2-3: Changes to current settings in occlusion cycling mode (continued) Setting Change to setting in occlusion cycling mode HIGH PRESSURE alarm (SPONT PSV) SUPPORT PRESSURE (as adjusted for occlusion cycling mode) + 20 cmH O, up to a maximum of 90 cmH PCV apnea INSPIRATORY PRESSURE •...
Page 137: Safety Valve Open (Svo)
Theory of operation 2.8.3 Safety valve open (SVO) The ventilator’s safety valve provides a way for the patient to breathe unassisted in cases where a hardware or software failure might compromise safe ventilation. In most such cases (except where the UI and BD microprocessors are unable to control the safety valve due to a malfunction), the UI or BD microprocessor places the ventilator into the safety valve open (SVO) state.
Page 138: Figure 2-64. Safety Valve Open Pneumatic Diagram
Theory of operation Figure 2-64. Safety valve open pneumatic diagram 2-82 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 139: Self-Tests
ECTION Self-tests This chapter describes the 700 Series Ventilator System’s built-in self-tests, including how to run them. It also describes how the ventilator responds when the self-tests detect undesirable conditions. For a listing of ventilator diagnostic codes, refer to Chapter 6. For a listing of alarm messages, refer to Chapter 7. 3.1 Introduction The 700 Series Ventilator System has the self-test capabilities described in Table 3-1.
Page 140: Power-On Self-Test (Post)
Self-tests Table 3-1: Self-tests (continued) Name Purpose When it is run Extended self- Lets a biomedical technician • When the ventilator is serviced test (EST) thoroughly test the operational • As part of the ventilator integrity of the ventilator, both the performance verification electronics and pneumatics.
Page 141: How The Ventilator Responds To A Post Error
Self-tests 3.2.3 How the ventilator responds to a POST error If POST detects an error, it attempts to log the diagnostic code into the test log. In addition, it responds in one of these ways: • If the error could be expected to compromise proper ventilation, a VENT INOP condition is declared.
Page 142 Self-tests For example, if the LEDs flash in this order (where X = LED on and O = LED off): O O O O = 0 X O O X = 9 O O O X = 1 O O O O = 0 O X X O = 6 The diagnostic code is 09106.
Page 143 Self-tests Table 3-2: POST routines (continued) Section of POST Description of routine POST2 (UI) Number of soft resets test – Checks whether three soft resets have occurred in the past 24 hours of operation. POST2 (UI) NVRAM test – Verifies integrity of NVRAM data. POST2 (UI) Hardware ID test –...
Page 144: Short Self-Test (Sst)
Consult the Operator’s Manual for information on SST. NOTE: • Covidien recommends SST be run every 15 days, between patients, and when the ventilator breathing circuit is changed. Covidien recognizes the protocol for running SST varies widely among healthcare institutions. It is not possible for Covidien to specify or require specific practices that will meet all needs, or to be responsible for the effectiveness of those practices.
Page 145: Hardware Requirements
3.4.2 Hardware requirements Table 3-3 lists the hardware requirements for EST. Table 3-3: Hardware requirements for EST Description Manufacturer or model or Covidien part number Ventilator breathing circuit To use as test circuit: G-061208-00 or equivalent (adult, reusable, without heated wire)
Page 146 If the ventilator was recently running and is already warmed up, you can press CLEAR to override the Vent warming message and begin EST. Covidien cannot guarantee the accuracy of test results in this case, however.
Page 147 Warning Incorrectly specifying the ventilator breathing circuit type during EST can cause an inappropriate sensitivity for the leak test and occlusion alarm. Covidien recommends using pediatric circuits when ventilating patients with 5 mm or smaller internal-diameter artificial airways. NOTE: To ensure compliance compensation functions correctly, the user must run EST with the circuit configured as intended for use on the patient.
Page 148 Self-tests NOTE: It may be useful to complete EST even with errors, because information on multiple errors can facilitate troubleshooting. Table 3-5: Key functions during EST Function ACCEPT Ignore failure and continue. CLEAR Repeat a test or return to prompt at start of a test. Alarm reset Retest from beginning of EST (when all tests are completed).
Page 149 Self-tests Table 3-6: Prompts during EST testing (continued) Prompt Operator action Name of a section of display Press ACCEPT to confirm all LEDs/LCDs in named section are on. Upper MDW = blocks? Press ACCEPT to confirm all pixels are turned on in upper half. Lower MDW = blocks? Press ACCEPT to confirm all pixels are turned on in lower half.
Page 150 Self-tests Table 3-7: EST completion status (continued) EST fault One or more tests did not pass. To retest from the start of the test sequence, press the alarm These tests might not compromise reset key. the ventilator’s ability to ventilate To exit EST and resume ventilation, press MANUAL INSP.
Page 151 Self-tests Table 3-8: EST tests (continued) Test Purpose Status In SST? Comments solenoids test Checks oxygen Fault if not solenoids and oxygen passed sensor NOTE: Overriding this fault could result in inaccurate oxygen percentage delivery. Flow sensor test Checks accuracy of Failure if not Yes, but exhalation flow sensor...
Page 152 Self-tests Table 3-8: EST tests (continued) Test Purpose Status In SST? Comments I/E filter test Checks pressure drop Fault if not Mandatory in EST, but optional across inspiratory and passed in SST. expiratory limbs of Disconnect and reconnect entire patient system. inspiration (I) tube from/to Checks pressure drop inspiratory filter outlet, and...
Page 153: Troubleshooting
Self-tests Table 3-8: EST tests (continued) Test Purpose Status In SST? Comments Main alarm test Checks whether various Failure if not Listen for each named sound, alarm sounds are passed then press ACCEPT to verify it is audible (at maximum audible.
Page 154 Self-tests Table 3-9: EST troubleshooting How the ventilator performs the Test name Corrective action test no. test DAC-ADC loop test Zeroes flow sensor pressure 1. Replace pressure solenoid PCB. transducer (P ) and exhalation 2. Replace controller PCB. pressure transducer (P Compares transducer readings (from A/D converter) to expected (autozero DAC) values.
Page 155 Self-tests Table 3-9: EST troubleshooting (continued) How the ventilator performs the Test name Corrective action test no. test Flow sensor test Autozeroes flow sensor. Delivers 1. Make sure room temperature is not too set rate (20, 100, and 150 L/min low.
Page 156 Self-tests Table 3-9: EST troubleshooting (continued) How the ventilator performs the Test name Corrective action test no. test Circuit comp test Pressurizes system to 10, 40, and 1. Verify leak test (test 7) has passed. 70 cmH O (flow of 10 L/min). 2.
Page 157 Self-tests Table 3-9: EST troubleshooting (continued) How the ventilator performs the Test name Corrective action test no. test Check valve test Establishes flows of 50, 100, and Replace cylinder outlet check valve. 150 L/min while monitoring cylinder and inspiration pressure NOTE: transducer readings.
Page 158 Self-tests Table 3-9: EST troubleshooting (continued) How the ventilator performs the Test name Corrective action test no. test Fan test Checks air flow thermistor 1. Make sure room temperature is not too reading to determine whether low. Make sure that ventilator has warmed fan is operational.
Page 159: Ongoing Checks
If the error recurs or if multiple errors occur, the problem requires corrective action. Contact your regional Covidien Technical Support. • Hardware error that might compromise ventilation – A VENT INOP condition is declared, which results in the ventilator being placed in the SVO state.
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Page 161: Service And Utility Functions
ECTION Service and utility functions Warning Never perform the service or utility functions while a patient is connected to the ventilator. The ventilator does not provide normal ventilatory support during these functions. 4.1 Introduction This chapter describes the 700 Series Ventilator System’s service and utilities functions, including prompts and expected responses.
Page 162: Summary Of Functions
Service and utility functions 4.1.2 Summary of functions Table 4-1 and Table 4-2 summarize the ventilator’s Service and Utilities functions. Table 4-1: Service functions Description Purpose Sensor data Primarily for factory use. During ventilation displays monitored parameters, including pressures, temperatures, voltages, battery current, PEEP motor on-time, delivered volume, flow BTPS, and oxygen percentage.
Page 163: Figure 4-1. Navigating The Service And Utilities Menus
Service and utility functions Figure 4-1. Navigating the Service and Utilities menus Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A...
Page 164: About The Test And Alert Logs And Est Test Results
Service and utility functions 4.1.4 About the test and alert logs and EST test results The results of ventilator self-tests are stored in NVRAM, as follows: • Two logs store diagnostic codes corresponding to unexpected conditions detected by the ventilator. Conditions detected during POST, SST, EST, and calibrations (but not the pass/ fail status of EST tests) are stored in the test log.
Page 165 Service and utility functions When you have selected a parameter group, you will see the following display: Message window display Description name of parameter group Turn the knob to locate the desired parameter group; then press ACCEPT. (for example, Other data) specific parameter Turn the knob to locate the specific parameter desired;...
Page 166 Service and utility functions Table 4-4: Temperature sensors Specific parameter Description Should read within this range... Ventilator internal temperature 5 to 70 °C measured on pressure solenoid PCB (in °C) Inspiration manifold thermistor reading 5 to 70 °C (in °C) Exhalation system monitor temperature Depends on temperature of delivered gas exh mon...
Page 167 Service and utility functions Table 4-6: UI/HW sensors Specific parameter Description Should read within this range... UI M24V +24 V on UI PCB (in V) 19.5 to 30.7 V UI M5VD +5 V on UI PCB (in V) 4.7 to 5.4 V Cara 1/2 V Ventilator model 740: approx.
Page 168: Est (Extended Self-Test)
Service and utility functions 4.2.2 EST (Extended self-test) This function lets you run the full EST. To access EST from the A. Service menu prompt, turn the knob until EST is displayed, then press ACCEPT. (You can also access EST from the main menu.) For a detailed discussion of ventilator testing, refer to Chapter 3.
Page 169: Enable Serial Port
Service and utility functions Table 4-9: Performing calibrations/Updating NVRAM Constants When this occurs Do the following Oxygen sensor replaced Perform FIO sensor calib function. Oxygen regulator pressure transducer Perform O pressure calib function. replaced PEEP pump replaced Perform PEEP pump calib function. Oxygen solenoid assembly replaced Perform Update constants function.
Page 170: Run Tests
(non-diagnostic) EST. NOTE: • Covidien recommends you always run the full EST before placing the ventilator into operation following service. For preliminary troubleshooting purposes, however, you may want to run EST tests individually. The EST tests function does not write error information into NVRAM nor declare a VENT INOP condition when tests are failed.
Page 171 Service and utility functions 4.2.3.2.2 Calib/Other tests This function lets you perform various subassembly calibrations or calibration checks and run miscellaneous other tests. To access the Calib/Other tests functions from the Run tests prompt, turn the knob until Calib/Other tests is displayed, then press ACCEPT. Then turn the knob to locate the desired Calib/Other tests function.
Page 172: Figure 4-2. Oxygen Regulator Pressure Transducer Calibration Setup
Service and utility functions Message window display Description pressure calib Press ACCEPT if the value displayed matches the pressure measurement device Verify reg pressure reading entered above, ±0.2 psi; otherwise, press CLEAR. xx.x psi x.xxx bar pressure calib Remove pressure measurement device and replace cap. Press ACCEPT. Disconnect test gauge pressure calib If the calibration passes, press ACCEPT to return to the Calibration tests menu.
Page 173 Service and utility functions sensor calib: Checking the oxygen sensor calibration. This function lets you perform a calibration check of the oxygen sensor. It requires an oxygen source of at least 50 psi (345 kPa). Warning Never perform the oxygen calibration check in an oxygen-enriched environment. This could result in improper calibration, yielding incorrect oxygen percentage readings.
Page 174: Figure 4-3. Peep Pump Calibration Setup
Service and utility functions PEEP pump calibration tool From PEEP reservoir outlet Disconnect Figure 4-3. PEEP pump calibration setup Peep pump calib: Calibrating the PEEP pump. This function lets you calibrate the PEEP pump. It requires a PEEP pump calibration tool (P/N G-061540-00). Message window display Description Peep pump calib...
Page 175: Figure 4-4. P E P Cyl Gain Equalization Setup
Service and utility functions Message window display Description Peep pump calib Return the tubing to its normal configuration. Press ACCEPT. Calibration complete Reconnect tubing Peep pump calib If the calibration passes, press ACCEPT to return to the Calibration tests menu. If Calibration passed you do not intend to perform any other calibration functions, turn the knob to access Exit testing;...
Page 176 Service and utility functions gain calib: Equalizing the gain of the exhalation and cylinder pressure transducers. This function lets you calibrate the exhalation and cylinder pressure transducers. It requires a kit (P/N G-061557-00). Message window display Description gain calib Press ACCEPT to perform this gain equalization. NOTE: If you do not wish to perform this gain equalization, do not proceed, but press CLEAR now.
Page 177 Service and utility functions Message window display Description Int battery test Displays current voltage, updated every second. Test fails after first piston stroke if inspiratory port remains unblocked. Test continues until complete or voltage drops Ext battery test below limits. (Voltage limits: >24 V initially, >23 V during first piston stroke, and xx.x V >21 V for remaining nine piston strokes.) Please wait...
Page 178 Service and utility functions NOTE: To display atmospheric pressure (P ), enter the Service menu, then press ACCEPT to select each of the following functions: Sensor data Pressure sensors Caution To help avoid triggering LOW O SUPPLY or O % LOW alarms, perform the Reg altitude calib using the lowest oxygen supply pressure and most restrictive oxygen hose and adapters that will be used during normal ventilation.
Page 179: Figure 4-5. Adjusting Oxygen Regulator Pressure
Service and utility functions Message window display Description High Flow=xxx L/min If you pressed CLEAR at the previous prompt to indicate you want to abort the Reg Calibration aborted altitude calib, this message appears. Press ACCEPT to exit the adjustment. High Flow=xxx L/min When you see this message, turn the 3/8-in.
Page 180: Clear Test Log: Erasing The Test Log
Service and utility functions If you selected Exit testing, do the following: Message window display Description Exit testing Press ACCEPT to reset the ventilator and exit the service menu in preparation for ventilation 4.2.3.3 Clear test log: Erasing the test log This function lets you erase all diagnostic codes from the test log.
Page 181: Review Constants: Viewing Calibration Constants In Nvram
Service and utility functions Message window display Description specific calibration constant Turn the knob to adjust the constant’s value. value of constant For all constants (except piston leak constants), the adjustment is a two-step Turn knob to adjust process. First, use the knob to perform a coarse adjustment (that is, to adjust the hundreds or the whole number, in the case of a decimal number).
Page 182 Service and utility functions If you selected Reset battery in use, you will see this display: Message window display Description Reset battery in use Press ACCEPT to reset the hours of internal battery life. Are you sure? CLEAR (N) ACCEPT (Y) If you selected Reset next service, you will see this display: Message window display Description...
Page 183: Review Alert Log: Reading The Alert Log
Service and utility functions 4.2.4 Review alert log: Reading the alert log NOTE: All service functions can be accessed while the ventilator is not ventilating. When ventilating, the only function accessible is the sensor data function. This function lets you read the diagnostic codes in the alert log. To access this function from the A.Service menu prompt, turn the knob until Review alert log is displayed.
Page 184: Review Test Log: Reading The Test Log
Service and utility functions 4.2.5.1 Review test log: Reading the test log This function lets you read the diagnostic codes in the test log. Message window display Description Review test log Press ACCEPT to proceed. log entries Review the first entry in the log, referring to Figure 4-6. Turn the knob to scroll through all remaining entries.
Page 185 Service and utility functions If you selected Time format select, you will see this display: Message window display Description 12 hour format Turn the knob to choose either 12-hour format or 24-hour format, then press ACCEPT to select it. 24 hour format If you selected Date format select, you will see this display: Message window display Description...
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Page 187: Performance Verification
ECTION Performance verification Conduct these tests to verify the performance of the 700 Series Ventilator System. NOTE: • The 700 Series Ventilator System is manufactured with accurate pneumatic and electronic test equipment in a controlled environment. As field conditions vary, the accuracy of measurement devices becomes less certain.
Page 188: Tools, Test Equipment, And Service Materials
In addition to the tools listed in Chapter 1, the test equipment and materials listed in Table 5-2 are required for the performance verification. Table 5-2: Test equipment required for performance verification Manufacturer and model or Covidien part Description number...
Page 189: Preliminary Ventilator Cleaning And Inspection
Performance verification Table 5-2: Test equipment required for performance verification (continued) Manufacturer and model or Covidien part Description number Ventilator breathing circuit To use as test circuit: G-061208-00 or equivalent (adult, reusable, without heated wire) NOTE: To ensure compliance compensation...
Page 190: Preliminary Ventilator Setup
Performance verification Clean and inspect the ventilator as follows. Clean ventilator exterior. Remove any water from the humidifier jar and dry, if applicable. Open and prop UI. Using ESD-safe vacuum cleaner, clean interior of ventilator. Remove and inspect main fan filter. Clean, vacuum, or replace as required. Inspect outer gasket around lid to ensure it is not torn and that entire gasket is securely affixed to lid.
Page 191: Electrical Safety Test And Power-On Self-Test (Post) (Test 1)
Performance verification Follow these general guidelines when running the performance verification: • If you note a problem during the performance verification, verify you followed the procedures correctly before attempting to repair the ventilator. • Verify you correctly entered the data on the ventilator UI by listening for the audible confirmation of accepted settings and observing the appropriate display.
Page 192: Rotary Encoder Test (Test 2)
Performance verification Verify main fan is operating properly. See Section 5.7 4. Power off ventilator. Unplug ventilator from electrical safety analyzer. Plug ventilator into wall outlet. 5.6.2 Rotary encoder test (Test 2) The rotary encoder test verifies the rotary (knob) encoder is functioning properly. Verify ventilator power is on.
Page 193: Internal Battery Test
Performance verification Verify ventilator continues operating uninterrupted, that LOSS AC POWER alarm is invoked, and that ON EXTERNAL BATTERY indicator (in VENTILATOR STATUS section of UI) flashes. See Section 5.7 6. Disconnect external battery from ventilator. Verify ventilator continues operating uninterrupted and that ON INTERNAL BATTERY indicator (in VENTILATOR STATUS section of UI) flashes.
Page 194: Supply Voltage Test (Test 4)
Performance verification 9. Wait ten minutes to ensure the backup alarm capacitor has time to charge. 10. Leaving the power switch ON, disconnect AC power from the unit. 11. Verify the backup alarm sounds. See Section 5.7 21. 12. Slide battery partially in, connect harness and complete sliding battery into compartment. 13.
Page 195: Gas Volume Accuracy, Breath Timing, And Peep System Test (Test 5), Using The Pts 2000 And Breathlab Software
Performance verification Connect DMM leads to each pair of pins given below, and verify voltage readings given in Table 5-3. See Section 5.7 9, 10, 11, 12, 13, 14. Table 5-3: Pressure solenoid PCB test connector (J2) voltages Voltage Positive lead Negative lead Acceptable range +24 V...
Page 196 Performance verification NOTE: Follow the PTS 2000 User’s Manual instructions for setting up the unit with your computer. Set the PTS 2000 for REMOTE OPERATION. NOTE: When using PTS 2000 Breathlab software to measure volume readings, select the Volume (1 breath) screen. Use the following settings: Units of measure in mL. Mode ATP threshold of 10 lpm.
Page 197 Performance verification Measure the following Acceptable range Tidal volume 80 to 120 mL Respiratory rate 29 to 31 breaths/min PEEP 0.95 to 5.05 cmH Change the settings shown in bold. Control Setting HIGH RATE 100 breaths/min HIGH TIDAL VOLUME 1500 mL LOW INSP PRESSURE 3 cmH LOW TIDAL VOLUME...
Page 198: Extended Self-Test (Est) (Test 6)
• Covidien urges medical departments to review the implications of using a ventilator that completed EST with a fault status. Covidien recommends establishing a medical department protocol that defines the conditions under which ventilator usage is acceptable.
Page 199: Oxygen Accuracy Test (Test 7) Using The Pts 2000
Performance verification You can to run EST from the main menu or the service menu. To run EST from the Main menu: Turn on the ventilator. If ventilation has already begun since the ventilator was turned on, turn off the ventilator and turn it back on without starting ventilation. Press MENU, turn the knob to select Self test, then press ACCEPT.
Page 200 Performance verification Wait three minutes for oxygen analyzer reading to stabilize. Verify oxygen analyzer reads between 27 and 33% and that no oxygen alarms activate (if applicable). See Section 5.7 18. Change the ventilator settings shown in bold. Control Setting HIGH RATE 100 breaths/min HIGH TIDAL VOLUME...
Page 201: High Pressure Alarm Test (Test 8) Using The Pts 2000
Performance verification Control Setting PEEP/CPAP 0 cmH TRIGGER SENSITIVITY 20 L/min Wait 1.5 minutes for oxygen analyzer reading to stabilize. Verify oxygen analyzer reads between 97% and 100%, and that no oxygen alarms activate (if applicable). 5.6.9 High pressure alarm test (Test 8) using the PTS 2000 The high pressure alarm test verifies the ventilator breathing circuit pressure is limited within specification.
Page 202: Safety Valve Test (Test 9)
Performance verification 5.6.10 Safety valve test (Test 9) The safety valve test verifies the safety valve opens when the exhalation valve fails. Verify ventilator settings are as follows. Control Setting HIGH RATE 100 breaths/min HIGH TIDAL VOLUME 1500 mL LOW INSP PRESSURE 3 cmH LOW TIDAL VOLUME 5 mL...
Page 203: Troubleshooting
Performance verification 5.7 Troubleshooting NOTE: Use the service menu Sensor data function (described in Section 4.2.1) to help confirm the failure of suspect components. Use this troubleshooting information in conjunction with the performance verification tests. These procedures are sequenced to correct the most probable malfunction or to present the most efficient corrective action first.
Page 204 Performance verification Rotary encoder test failed Verify rotary encoder cable connections are secure. Verify ventilator head/UI cable connections are secure. Replace rotary encoder. Replace controller PCB. External battery test failed Verify there is no visible damage to battery harness and connector. Check external battery fuse.
Page 205 Performance verification 15. Tidal volume out of range Verify test equipment used is calibrated and working correctly. Verify ventilator settings are correct. Verify all tubing connections are secure, check tubing and test lung for leaks, and verify setup is correct. Rerun SST.
Page 206 Performance verification 19. High pressure alarm test failed Verify ventilator settings are correct. Verify all tubing connections are secure, and check tubing and test lung for leaks. Verify tubing between exhalation assembly, autozero solenoid, and pressure transducer is securely connected. Replace pressure solenoid PCB.
Page 207: Diagnostic Codes
ECTION Diagnostic codes Use this chapter to interpret diagnostic codes, which are in the alert and test logs. The alert log contains codes generated by ongoing checks during ventilation. The test log contains codes generated by the power-on self-test (POST), the short self- test (SST), the extended self-test (EST), and calibrations.
Page 208: About Software Errors
Often, a software error is a transient failure, which is not expected to recur. When the system is reset, POST passes, and ventilation continues. If a software error recurs or if multiple software errors occur, the problem requires corrective action. Contact your regional Covidien Technical Support.
Page 209: Error Code 06027
Diagnostic codes However, due to occlusion changes in Revision E software, the ventilator no longer stops ventilating if detecting an occlusion or continuous HIP (High Inspiratory Pressure). Instead, the ventilator employs Occlusion Cycling Mode. In this mode, Safety and Exhalation Valves are cycled open and closed to check if the condition still exists.
Page 210: Error Code 09169
Diagnostic codes 6.4.3 Error code 09169 Revision K software for the 700 Series Ventilators was released in October, 1999. Error code 09169 only affects units with Revision J Software. The ventilator is designed to deliver RAMP and SQUARE flow waveform VCV (Volume Controlled Ventilation) in A/C (Assist Control) and in SIMV (Synchronous Intermittent Mandatory Ventilation).
Page 211 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 6002 BIOT (technical alert -- Motor temperature too high 1. Clean or replace main fan filter. MOTOR OVER TEMP) 2. Check for proper operation of main fan. 3.
Page 212 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 6008 BIOT (technical alert -- A key was held down longer 1. Verify keyboard cable is securely KEYBOARD FAILED) than expected connected to UI display PCB. 2. Replace keyboard. 3.
Page 213 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 6014 BIOT (technical alert -- Temperature at exhalation 1. Make sure room temperature is not too FLO SENSOR HI TEMP) flow sensor pressure high. transducer too high 2.
Page 214 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 6023 BIOT (technical alert -- Exhalation pressure transducer 1. Make sure PEAK FLOW setting is LOW INSP PRESSURE) reading (P ) fell below adequate to meet patient’s demand. -40 cmH O, possibly due to a Consider appropriate LOW INSP...
Page 215 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 6028 BIOT (technical alert -- Safety valve should be closed, 1. Check that safety valve/ventilator head CONTACT SERVICE) but measured current is too harness connection is secure. high 2.
Page 216 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 6039 POST (technical alert -- Safety valve stuck closed 1. Check state of safety valve during POST. VALVES TEST FAILED) during POST If stuck closed, replace. 2. If safety valve open during POST, replace cylinder outlet check valve.
Page 217 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7007 POST Motor/piston failure 1. If piston/cylinder was recently replaced, make sure calibration constants were correctly input. 2. Replace motor/encoder. 3. Replace controller PCB. 4. Replace BBU PCB. 5.
Page 218 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7018 POST UI clock failure Replace controller PCB. 7019 POST BD POST failed Replace controller PCB. 7020 POST BD microcontroller failure Replace controller PCB. 7021 POST Software error See Section 6.2.
Page 219 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7042 POST Exhaled flow too low 1. Make sure room temperature is not too low. Make sure that ventilator has warmed up and exhaled flow attained a steady-state temperature. 2.
Page 220 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7065 POST ALARM light failure 1. Replace UI display PCB. 2. Replace controller PCB. 7066 POST CAUTION light failure 1. Replace UI display PCB. 2. Replace controller PCB. 7067 POST Main fan failure...
Page 221 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7079 POST Controller PCB and ventilator Install controller PCB version compatible software versions incompatible with software version. 7080 POST Controller PCB and ventilator 1. Install ventilator software version software versions incompatible compatible with PCB version.
Page 222 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7098 POST Controller PCB +1.2 V Replace controller PCB. reference too high 7099 POST Controller PCB +1.2 V Replace controller PCB. reference too low 7100 POST Controller PCB +1.2 V Replace controller PCB.
Page 223 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7116 POST Ventilator internal 1. Make sure room temperature is not too temperature too high high. 2. Make sure vents in unit are not blocked. 3. Make sure main fan is operating properly.
Page 224 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7124 POST Inspiration pressure too high 1. Verify tubing between inspiration manifold and pressure transducer is securely connected. 2. Replace pressure solenoid PCB. 7125 POST Exhalation pressure too low 1.
Page 225 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7133 POST Oxygen percentage reading 1. Perform FIO sensor calib function, too low making sure room temperature is same as expected room temperature during use. 2. Replace oxygen sensor. 3.
Page 226 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7145 POST Real-time clock error Replace controller PCB. 7146 POST Real-time clock error Replace controller PCB. 7147 POST BD POST did not operate as Replace controller PCB. expected (possible microcontroller failure).
Page 227 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7169 POST Ventilator did not switch to AC 1. Verify AC is acceptable. after POST. 2. Check LEDs on BBU PCB and power supply to determine presence of voltages.
Page 228 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7184 POST Multiplexer failure on pressure Replace pressure solenoid PCB. solenoid PCB 7185 POST Multiplexer failure on pressure Replace pressure solenoid PCB. solenoid PCB 7186 POST Multiplexer lines shorted Replace pressure solenoid PCB.
Page 229 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7210 POST Software error See Section 6.2. 7211 POST Software error See Section 6.2. 7212 POST VENT INOP signal is active 1. See previous diagnostic codes in log for corrective actions.
Page 230 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 7238 POST Loopback test performed on Replace controller PCB. controller PCB during POST failed. 7239 POST The voltage used to identify 1. Check all cable connections between the 740/760 user interface is the user interface and controller PCB.
Page 231 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9013 Ongoing hardware Main fan failure 1. Make sure room temperature is not too checks low. Make sure that ventilator has warmed up and attained a steady-state temperature.
Page 232 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9029 Ongoing hardware One microcontroller Replace controller PCB. checks recognizes a power loss, but other doesn’t. 9030 Ongoing hardware Safety valve control circuit 1. Replace pressure solenoid PCB. checks failure 2.
Page 233 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9042 Ongoing hardware Oxygen regulator pressure out 1. Make sure oxygen source pressure is at checks of bounds least 40 psi. 2. Check for proper installation of oxygen regulator pressure transducer and connection of sensor to pressure solenoid PCB.
Page 234 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9075 Ongoing hardware Piston not retracting as 1. If piston/cylinder was recently replaced, checks expected make sure calibration constants were correctly input. 2. Replace motor/encoder. 3. Replace controller PCB. 4.
Page 235 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9085 Ongoing hardware Failure to autozero cylinder 1. Use Sensor data function to check P checks pressure transducer reading. 2. Check that autozero solenoid/main ventilator head harness connection is secure.
Page 236 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9096 Ongoing hardware Piston motion error 1. Verify operation of the home checks optoswitch. 2. Replace controller PCB. 3. Replace motor/encoder assembly. 9097 Ongoing hardware Piston motion error 1.
Page 237 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9113 Ongoing hardware Real-time clock failure Replace controller PCB. checks 9114 Ongoing hardware Real-time clock failure Replace controller PCB. checks 9115-9124 Ongoing hardware Bad NVRAM data or NVRAM 1.
Page 238 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9133 Ongoing hardware Flow sensor pressure 1. Make sure room temperature is not too checks transducer reading too low low. Make sure that ventilator has warmed up and T attained a steady xdcr state.
Page 239 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9146 Ongoing hardware +15V from pressure solenoid 1. Replace pressure solenoid PCB. checks PCB too low 2. Replace controller PCB. 9147 Ongoing hardware +15V from pressure solenoid 1.
Page 240 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9162 Ongoing hardware Oxygen regulator pressure 1. Calibrate oxygen regulator pressure checks transducer reading too low transducer. 2. Replace oxygen regulator pressure transducer. 3. Replace oxygen regulator assembly. 4.
Page 241 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 9170 Ongoing hardware Piston did not move forward 1. Run SST or EST to make sure ventilator checks for three consecutive breaths is capable of moving piston. 2.
Page 242 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 10007 Interrupt routines 1. Software error 1. See Section 6.2. 2. Hardware failure 2. Replace controller PCB. 10008 Interrupt routines 1. Software error 1. See Section 6.2. 2.
Page 243 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 11132 SST/EST Software or motor/encoder 1. See Section 6.2. error 2. If piston/cylinder was recently replaced, make sure calibration constants were correctly input. 3. Check mesh of pinion gear with rack. Remesh as necessary.
Page 244 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 11148 SST/EST Software or motor/encoder 1. If piston/cylinder was recently replaced, error make sure calibration constants were correctly input. 2. Replace motor/encoder. 3. Replace controller PCB. 4. Replace BBU PCB. 5.
Page 245 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 12004 Communications Corrupt data packet. Five 1. Verify communications configuration routines unsuccessful attempts were on PC side. made to transmit it. 2. Check communications cabling. 12005 Communications Software error See Section 6.2.
Page 246 Diagnostic codes Table 6-1: Diagnostic codes (continued) Code Software Possible cause Corrective action 13007 Ventilator status Ventilator reset occurred while See Section 6.3. waiting for user to confirm settings 13008 Ventilator status SST passed None required. 13009 Ventilator status SST incomplete None required.
Page 247: Alarm Messages
ECTION Alarm messages This chapter describes how to respond to ventilator alarms. It also lists, in alphabetic order, messages displayed by the ventilator when it detects alarm conditions. 7.1 Alarm classifications Alarms in the 700 Series Ventilators are classified by priority (high-priority or medium-priority);...
Page 248: Responding To Alarms
Alarm messages 7.2 Responding to alarms Silence the audible alarm for two minutes (where possible) by pressing the alarm silence key. Correct the condition, if necessary, referring to Table 7-2. You may want to check the contents of the alert and test logs (accessible through the service menu, Section 4.2) for related diagnostic codes.
Page 249 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: APNEA High-priority alarm. 1. Check patient. (no diagnostic code 2. Consider switching from SPONT mode. Patient has not triggered a breath within logged) apnea interval (can only occur in SPONT mode).
Page 250 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: CONTACT SERVICE High-priority alarm. Technical alert. 1. Replace UI display PCB. (diagnostic code 6030) 2. Replace controller PCB. There is current to ALARM light when it should be off.
Page 251 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: CONTACT SERVICE High-priority alarm. Technical alert. 1. Verify AC power to the ventilator. (diagnostic codes 6043- 2. Verify battery voltage. BBU signal conflict: signals indicate both 6046) 3.
Page 252 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: EXH CCT LOW TEMP High-priority alarm. Technical alert. 1. Check connections of exhalation heater (diagnostic code 6011) and thermistor assemblies. Exhalation limb temperature too low. The 2.
Page 253 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: HI EX TIDAL VOLUME Medium-priority alarm. 1. Check patient. 2. Consider appropriate HIGH TIDAL (no diagnostic code Exhaled volume for three of four VOLUME, TIDAL VOLUME, and logged) consecutive breaths was above HIGH TIDAL SUPPORT PRESSURE settings.
Page 254 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: LO EX TIDAL VOLUME Medium-priority alarm. 1. Check patient. 2. Consider appropriate LOW TIDAL (no diagnostic code Monitored tidal volume less than LOW VOLUME, TIDAL VOLUME, and logged) TIDAL VOLUME setting for three out of SUPPORT PRESSURE settings.
Page 255 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: LOW EXT BATTERY High-priority alarm. 1. Verify reliable AC power source. (no diagnostic code 2. Check external battery connections. Low external battery voltage detected logged) 3.
Page 256 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: LOW INT BATTERY HIgh-priority alarm. 1. Verify reliable AC power source. (no diagnostic code 2. Check internal battery connections. Low internal battery voltage detected logged) 3.
Page 257 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: HIGH High-priority alarm. 1. Check air intake filter for occlusion. (no diagnostic code Replace if necessary. Measured oxygen percentage more than logged) 2. Check oxygen supply. 10 percentage points above setting for at 3.
Page 258 Alarm messages Table 7-2: Alarm messages (continued) When you see this It means... Do this... message: SETUP TIME ELAPSED High-priority alarm. 1. Check patient. Be sure to complete (no diagnostic code ventilator setup before connecting At least 30 seconds have elapsed since you logged) ventilator breathing circuit to patient.
Page 259: Service And Repair
ECTION Service and repair 8.1 Introduction 8.1.1 How to use this chapter This chapter describes how to repair the major ventilator subassemblies and their components. These repair procedures include removal, installation, and adjustment, as applicable. This section does not provide complete breakdowns of all assemblies and complete disassembly information.
Page 260: General Repair Guidelines
• Investigate and determine the cause of any detected abnormality. Repair the unit or contact your regional Covidien Technical Support for help in diagnosing unresolved symptoms. • Replace or repair all parts that are worn, missing, damaged, cracked, corroded, burnt, warped, bent, disfigured, or broken.
Page 261: Repair-Related Cleaning
Service and repair 8.1.4 Repair-related cleaning If needed, follow these general guidelines when cleaning the ventilator during servicing. Procedures for periodic cleaning and sterilization of the ventilator and accessories are given in the 700 Series Ventilator System Operator’s Manual. Specific procedures for periodic cleaning and inspection done during the ventilator’s performance verification are given in Chapter 5 of this manual.
Page 262: Electrostatic Discharge Control
700 Series Ventilators. • Use a personnel grounding system. Before opening the ventilator lid or removing its cabinet panels, ensure that a personnel grounding system such as Covidien P/N G-061661-00 (wrist strap, static-dissipative mat, and ground cord) is worn correctly and is properly connected to a reliable ground.
Page 263: Repainting And Touch-Up
Service and repair 8.1.8 Repainting and touch-up Before repainting or touching up the ventilator, smooth out the area with a fine sandpaper, and make sure it is free from any grease, corrosion, or dust. Remove the part to be painted or mask off the surrounding area to prevent overspray or spills.
Page 264: Cart Assembly
Service and repair 8.3 Cart assembly Warning • To prevent equipment damage, pull, rather than push, the ventilator over high thresholds when using the cart to transport the ventilator. Ensure that the flex arm is positioned at the front of the ventilator. •...
Page 265: Figure 8-1. Removing Ventilator Attachment Screws From Cart
Service and repair External lockwasher (2 PL) Flat washer (2 PL) M6 x 16 screw (2 PL) 7-00176 Figure 8-1. Removing ventilator attachment screws from cart Ventilator Cart Interlocking rails locked in place in grooves in cart Ventilator Cart Interlocking rails pushed out of locked position 7-00177...
Page 266: Removing/Installing Oxygen Cylinder Brackets
Service and repair 8.3.3 Removing/installing oxygen cylinder brackets Remove the oxygen cylinder brackets from the cart as follows. Install by reversing removal (See procedure. Figure 8-3). Loosen cylinder-retaining wing screws. Lift out cylinders. Using 7-mm nutdriver, remove four M4 nuts with captive lockwashers that retain each of two lower cylinder supports.
Page 267: Removing/Installing Cylinder Covers
Service and repair 8.3.4 Removing/installing cylinder covers Using 7-mm nutdriver, remove four nuts with captive lockwashers that retain each cylinder cover. Install by reversing removal procedure. 8.3.5 Removing/installing collector vial support bracket (See Figure 8-4). Using 3-mm hex driver, remove two M4 x 8 screws, flat washers, and split- ring washers that retain bracket to cart.
Page 268: Figure 8-5. Removing Hudson Rci™* Humidifier Bracket Assembly
Service and repair Install on right side of cart. M6 split-ring washer (2 PL) flat washer (2 PL) M6 x 20 screw (2 PL) M5 nut (4 PL) M5 flat washer (4 PL) M5 x 25 screw (4 PL) Cart interface bracket Slide bracket...
Page 269: Removing/Installing External Battery And Cover
Service and repair 8.3.8 Removing/installing external battery and cover (See Figure 8-7). Remove the external battery and cover from the ventilator as follows. Install by reversing removal procedure. Disconnect battery from external battery connector at rear of ventilator. Loosen two captive thumbscrews that retain external battery cover. Remove cover. Remove battery.
Page 270: Shelf Mount
Service and repair 8.4 Shelf mount Warning To prevent possible personal injury, never attempt to lift the ventilator without assistance. When lifting the ventilator, lift from the base, use assistance, and take appropriate safety precautions. 8.4.1 Removing/installing ventilator from/to shelf mount Remove the ventilator from the shelf mount as follows.
Page 271: Removing/Installing Collector Vial Support Bracket
Service and repair To unlock Ventilator Shelf Interlocking rails locked in place Ventilator Shelf Interlocking rails clear slots on shelf 7-00184 Figure 8-9. Removing shelf mount from ventilator 8.4.2 Removing/installing collector vial support bracket (See Figure 8-8). Using 3-mm hex driver, remove two M4 x 10 screws, flat washers, and split- ring washers that retain support bracket to shelf mount plate.
Page 272: User Interface (Ui) Assembly (Lid)
Service and repair 8.5 User interface (UI) assembly (lid) 8.5.1 Opening and propping lid Using 3-mm hex driver, loosen M4 x 12 screws on latch-retaining brackets (Figure 8-10). Swing brackets aside, and open latches. Lift lid, then prop it up by tightening thumbscrew near center of lid hinge (Figure 8-11). 8.5.2 Removing/installing lid Remove the lid from the ventilator, as follows.
Page 273: Figure 8-11. Propping The Lid
Service and repair Rotary UI display PCB encoder ventilator head cable UI ground Plunger wire Controller Screw Latch Latch retaining bracket 7-00185 Figure 8-10. Lid raised Thumbscrew 7-00186 Figure 8-11. Propping the lid Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 274: Knob And Rotary Encoder
Service and repair 8.5.3 Knob and rotary encoder (See Figure 8-12). Remove the knob and rotary encoder as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Using 1/16-in. hex driver, loosen setscrew in knob. Remove knob. Using 11-mm nutdriver or wrench, remove nut and internal lockwasher from switch shaft.
Page 275: Ui Display Pcb
Service and repair 8.5.4 UI display PCB Caution When disassembling the UI, account for all fasteners removed, as fasteners falling between the keyboard and the UI display PCB may cause equipment failure. (See Figure 8-12). Remove the UI display PCB as follows. Install by reversing removal procedure.
Page 276: Lcd Panel (Message Window)
Service and repair 8.5.5 LCD panel (message window) Caution When disassembling the UI, account for all fasteners removed, as fasteners falling between the keyboard and the UI display PCB may cause equipment failure. Remove the LCD panel as follows. Install by reversing removal procedure. Remove lid (Section 8.5.2).
Page 277: Keyboard Assembly
Service and repair 8.5.6 Keyboard assembly Caution When disassembling the UI, account for all fasteners removed, as fasteners falling between the keyboard and the UI display PCB may cause equipment failure. Remove the keyboard assembly as follows. Install by reversing removal procedure. Remove LCD panel (Section 8.5.5).
Page 278: Ventilator Head Cabinet Assembly
Service and repair 8.6 Ventilator head cabinet assembly 8.6.1 Oxygen adapter assembly To remove the oxygen adapter assembly (if ventilator is so equipped), unscrew it from the ventilator’s standard male DISS fitting. The oxygen adapter assembly can also be disassembled (as required) while it is on or off the ventilator (Figure 8-15). To install the oxygen adapter assembly, remove any existing PTFE tape from the ventilator’s DISS male fitting and apply new tape (P/N G-060759-00).
Page 279: Options Panel Plate
Service and repair 8.6.2 Options panel plate (See Figure 8-16). Remove options panel plate by removing seven M3 x 8 POZIDRIV™* screws with captive washers. Install by reversing removal procedure. Options panel plate 7-00160 Figure 8-16. Options panel plate Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 280: Communications Option
Service and repair 8.6.3 Communications option Communications option panel 7-00231 Figure 8-17. 700 Series Communications option panel (See Figure 8-17). Remove the Communications option assembly as follows. Install by reversing removal procedure. Open and prop the lid (Section 8.5.1) Unscrew the seven M3 x 8 POZIDRIV™* screws from the Communications option panel (Figure 8-18), and pull the panel out to allow access to the Communications option assembly.
Page 281: Remote Alarm Harness And Connector
Service and repair 7-00011 Figure 8-18. Removing Communications option assembly 8.6.3.1 Remote alarm harness and connector (See Figure 8-19 and Figure 8-20). Remove the remote alarm harness as follows. Install by reversing removal procedure. Remove the Communications option assembly and disconnect the ribbon cable (Section 8.6.3).
Page 282: Nebulizer Harness And Connector
Service and repair Remote alarm harness/connector Nurse call harness/connector PCB assembly Serial port hardware Nebulizer harness/connector Ribbon cable 7-00254 Figure 8-19. Disassembling Communications option assembly (remote alarm, nebulizer, nurse call, and serial port hardware) 8.6.3.2 Nebulizer harness and connector (See Figure 8-19 and Figure 8-20). Remove the Communications option nebulizer harness as follows.
Page 283: Serial (Rs-232) Port Hardware
Service and repair Nurse call harness/connector Remote alarm harness/connector Nebulizer harness/connector Ribbon cable (to Controller PCB J2) 7-00255 Figure 8-20. Removing harnesses/connectors from Communications option assembly 8.6.3.4 Serial (RS-232) port hardware (See Figure 8-19). Remove the Communications option serial port hardware as follows. Install by reversing removal procedure.
Page 284: Communications Option Plate Assembly
Service and repair Remove screws from top of PCB Metal shell Remove screws from under PCB PCB assembly 7-00256 Figure 8-21. Removing the Communications option PCB assembly from the option plate assembly 8.6.3.6 Communications option plate assembly (See Figure 8-21). Remove the Communications option plate assembly as follows. With the exception of the nurse call harness and connector (which is installed according to instructions that come with the replacement harness), install by reversing removal procedure.
Page 285: Air Intake Cover And Filter
FRU kits (G-062528) ship with this modification. If replacing the air intake cover for the first time, Covidien recommends replacing the air intake manifold, also. Remove cover (Figure 8-22); then remove filter. Replace filter every 1000 hours or more often, as required.
Page 286: Air Flow Thermistor Assembly
Service and repair 8.6.5 Air flow thermistor assembly (See Figure 8-23). Remove air flow thermistor assembly as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Disconnect air flow thermistor assembly from ventilator head harness. Using 2.5-mm hex key, remove two M3 x 8 screws and split-ring washers that attach air flow thermistor assembly to air intake manifold.
Page 287: Figure 8-24. Inspiration Access Panel Removed
Service and repair Using 2.5-mm hex key, remove M3 x 8 screw, split-ring washer, and flat washer that attach tie wrap to just below top corner of air intake manifold. Free harness and cable tie from manifold. From inside the inspiration access panel, use a 7-mm wrench to loosen the kep nut that holds the grounding strap to the inside of the panel.
Page 288: Air Intake Filter Switch
Service and repair NOTE: • When installing the male DISS fitting to the regulator body, first remove any PTFE tape (if reusing existing fitting) and apply new tape (P/N G-060759-00) to the threads. To prevent tape debris from coming loose and entering the pneumatic system, do not wrap tape around the first two threads.
Page 289: Flex Arm Mounting Block
Service and repair 8.6.8 Flex arm mounting block (See Figure 8-26) Remove flex arm mounting block as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Disconnect main ventilator head harness from pressure solenoid PCB to provide access to mounting block retaining screws (Figure 8-23).
Page 290: Oxygen Regulator, Oxygen Solenoid, Mixing Manifold, And Cylinder Inlet Check Valve
Service and repair Reassemble ventilator by reinstalling panels and components. NOTE: When installing a new cabinet assembly, always remove and reattach the serial number plate. It is important that the serial number plate remain with the unit, as ventilator serial numbers are matched with subassembly serial numbers. 8.7 Oxygen regulator, oxygen solenoid, mixing manifold, and cylinder inlet check valve Warning...
Page 291: Figure 8-27. Removing Oxygen Regulator/Oxygen Solenoid Assembly
Service and repair Oxygen solenoid assembly Oxygen regulator Mixing manifold 7-00263 Figure 8-27. Removing oxygen regulator/oxygen solenoid assembly To remove the grounding strap from the regulator, use a 3-mm hex key to loosen the two M3 x 25 screws on the grounding strap, then remove the grounding strap from the regulator.
Page 292: Figure 8-29. Cylinder Check Valves
Service and repair Remove mixing manifold, as follows: Using 2.5-mm hex driver, loosen four M3 x 10 screws and split-ring washers. Pull out manifold. Inlet check valve and gasket will also come out (Figure 8-29). Caution Be extremely careful to prevent debris of any kind from entering the cylinder while the check valve is off.
Page 293: Installing Oxygen Regulator, Oxygen Solenoid Assembly, Mixing Manifold, And Cylinder Inlet Check Valve
Service and repair 8.7.2 Installing oxygen regulator, oxygen solenoid assembly, mixing manifold, and cylinder inlet check valve Install the oxygen regulator, oxygen solenoid assembly, mixing manifold, and cylinder inlet check valve by reversing removal procedure. Warning To minimize fire hazard, inspect and clean as necessary any ventilator parts that come into contact with oxygen.
Page 294: Inspiration Manifold Assembly
Service and repair Oxygen regulator pressure transducer 7-00260 Figure 8-30. Oxygen regulator pressure transducer 8.8 Inspiration manifold assembly Warning The safety valve solenoid can get very hot. To prevent injury, be careful when servicing the solenoid or other inspiration manifold components. 8.8.1 Oxygen sensor Remove the oxygen sensor as follows.
Page 295: Figure 8-31. Inspiration Manifold Assembly
Service and repair NOTE: • When installing the oxygen sensor, make sure it is fully seated. • After installing the oxygen sensor, always perform an oxygen sensor calibration (Section 4.2.3.2.2). Safety valve Oxygen sensor Inspiration manifold thermistor 7-00237 Figure 8-31. Inspiration manifold assembly 7-00233 Oxygen sensor Oxygen sensor in adapter...
Page 296: Inspiration Manifold Thermistor
Service and repair 8.8.2 Inspiration manifold thermistor (See Figure 8-31). Remove the inspiration manifold thermistor as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Disconnect thermistor from ventilator head harness. Using 10-mm (for previous version) or 19-mm (for current version) open-ended wrench, remove thermistor.
Page 297: Exhalation Assembly
Service and repair NOTE: • If the monitored oxygen concentration of delivered gas is too low, the outlet or inlet check valve may be stuck open. Apply negative pressure to the wye. If system pressure stays low, check for a stuck check valve. •...
Page 298: Exhalation Heater And Thermistor Assemblies
Service and repair Filter Exhalation assembly cover Clip 7-00100 Figure 8-34. Exhalation assembly cover 8.9.2 Exhalation heater and thermistor assemblies 8.9.2.1 Removing exhalation heater and thermistor assemblies (See Figure 8-35 and Figure 8-36). Remove the exhalation heater or thermistor assembly as follows.
Page 299: Figure 8-35. Exhalation Assembly Installed
Service and repair Exhalation Heater and valve clip Thermistors Remove these screws to remove check valve Flow sensor (6 PL total) heater and clip Cross tube Flow sensor assembly 7-00199 Figure 8-35. Exhalation assembly installed The 700 Series Ventilator exhalation system has been modified to reduce the chances of rain out in the exhalation system from the humidifier generating excess humidity.
Page 300: Installing Exhalation Heater And Thermistor Assemblies
Service and repair 8.9.2.2 Installing exhalation heater and thermistor assemblies (See Figure 8-35 and Figure 8-36). Install heater assembly by reversing removal procedure, wrapping long heater around top of flow sensor housing and short heater around cross tube. Install thermistor assembly: Install black thermistor bead by threading bead and approximately 15 mm of thermistor wire through hole in clip from outside (Figure 8-37).
Page 301: Exhalation Check Valve
Service and repair Serial number Speaker Piezo alarm plate Exhalation assembly EXHAUST port Expiratory filter housing Underside of ventilator 7-00202 Figure 8-38. Exhalation assembly, speaker, and piezo alarm mounting 8.9.4 Exhalation check valve (See Figure 8-35). Remove the exhalation check valve, as follows. Install by reversing removal procedure.
Page 302: Exhalation Valve
Service and repair Brass knob Check valve Gasket 7-00203 Figure 8-39. Exhalation check valve in position 8.9.5 Exhalation valve (See Figure 8-35). Remove the exhalation valve as follows. Install by reversing removal procedure. Remove exhalation assembly (Section 8.9.3). Remove heater and thermistor assemblies and spring clip from cross tube. Using 2.5-mm hex key and/or driver, remove three M3 x 8 POZIDRIV™* screws and split- ring washers that attach exhalation valve to cross tube block, and three M3 x 8 POZIDRIV™* screws and split-ring washers that attach valve to flow sensor.
Page 303: Cable Management Bar, Pcbs, Speaker, And Piezo Alarm
Service and repair 8.10 Cable management bar, PCBs, speaker, and piezo alarm 8.10.1 Speaker (See Figure 8-40). Remove the speaker as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Disconnect ventilator head harness from speaker terminals. Remove four M3 x 12 POZIDRIV™* screws with captive washers from beneath speaker (Figure 8-38).
Page 304: Piezo Alarm
Service and repair 8.10.2 Piezo alarm (See Figure 8-40). Remove the piezo alarm as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Disconnect ventilator head harness from alarm. Unscrew alarm cap (Figure 8-38). Remove alarm and rubber washer. NOTE: When installing the piezo alarm, connect the ventilator head harness wires to the + and - terminals that are next to each other.
Page 305: Removing/Installing Backup Alarm Pcb
Service and repair 8.10.3.2 Removing/installing backup alarm PCB Remove the backup alarm PCB as follows. Install by reversing removal procedure. Refer to Installation Instructions contained in p/n 10002485 kit for more information and photos of installation. Carefully disconnect positive lead of backup alarm. Lead is marked BKALM+. Take care NOT to pull crimp by the wire;...
Page 306: Testing
Make a note that the alarm failed to sound under this test. Re-assemble the ventilator in accordance with steps 12 and 13 below. Contact Covidien Technical Support at 1.800.255.6774. 12. Slide battery partially in, connect harness and complete sliding battery into compartment.
Page 307: Removing/Installing Controller Pcb
Service and repair Cutout Exhalation flow sensor Exhalation Cylinder Inspiration differential pressure pressure pressure pressure transducer transducer transducer transducer 7-00141 Figure 8-41. Pressure solenoid PCB tube connectors 8.10.3.5 Removing/installing controller PCB Remove the controller PCB as follows. Install by reversing removal procedure. Remove the pressure solenoid PCB (Section 8.10.3.1).
Page 308: Removing/Installing Software Eproms
Service and repair NOTE: • When installing a new controller PCB, always transfer the NVRAM and software EPROMs from the existing controller PCB to the new PCB. The NVRAM contains calibration constants specific to the components in your ventilator. The EPROMs contain the ventilator software.
Page 309: Removing/Installing Nvram
Service and repair Dimple at NVRAM (U6) pin 1 EPROM 1 EPROM 2 EPROM 3 EPROM 4 7-00143 Figure 8-42. Controller PCB component locations 8.10.3.7 Removing/installing NVRAM (See Figure 8-42). Remove the NVRAM (nonvolatile random-access memory) from the controller PCB as follows. Install by reversing removal procedure. Caution To prevent ESD damage, always follow ESD guidelines when handling PCBs or NVRAM.
Page 310: Updating Nvram Data
Service and repair 8.10.3.8 Updating NVRAM data If the NVRAM on the controller PCB fails, install a new NVRAM. After powering on the ventilator, update NVRAM data as follows: Use Update constants function in the service menu (Section 4.2.3.5) to update the following calibration constants: •...
Page 311: Figure 8-43. Removing And Installing Eproms
Service and repair 7-00204 7-00205 Figure 8-43. Removing and installing EPROMs Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 8-53...
Page 312: Cylinder And Exhalation Pressure Transducer Autozero Solenoids
Service and repair 8.10.4 Cylinder and exhalation pressure transducer autozero solenoids (See Figure 8-40). Remove the cylinder or exhalation pressure transducer autozero solenoid as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Disconnect tubes from applicable solenoid. Caution To prevent equipment damage, never disconnect any solenoids while power is applied.
Page 313: Peep Pump And Reservoir
Service and repair 8.11 PEEP pump and reservoir 8.11.1 PEEP pump Caution To prevent equipment damage, never disconnect the PEEP pump while power is applied. NOTE: Replace the PEEP pump every 30,000 hours. It is part of the 30,000-hour preventive maintenance kit.
Page 314: Exhalation Solenoid
Service and repair PEEP pump Filter PEEP Exhalation reservoir solenoid 7-00100 Figure 8-44. PEEP pump and reservoir 8.11.3 Exhalation solenoid (See Figure 8-44). Remove the exhalation solenoid as follows. Install by reversing removal procedure. NOTE: Replace the exhalation solenoid every 15,000 hours. It is part of the 15,000- and 30,000- hour preventive maintenance kits.
Page 315: Piston/Cylinder And Motor/Encoder Assemblies
Service and repair 8.12 Piston/cylinder and motor/encoder assemblies Caution Never attempt to open up the piston/cylinder assembly. Opening up the piston/cylinder may allow debris into the cylinder, causing damage. 8.12.1 Optoswitches (See Figure 8-45). Remove the optoswitches as follows. Install by reversing removal procedure.
Page 316: Removing/Installing Piston/Cylinder And Motor/Encoder Assemblies
Service and repair 8.12.2 Removing/installing piston/cylinder and motor/encoder assemblies (See Figure 8-45). Remove the piston/cylinder and motor/encoder assemblies (with inspiration manifold assembly), as follows. Install by reversing removal procedure. Open and prop lid (Section 8.5.1). Remove inspiration access panel and air intake manifold assembly (Section 8.6.6). Remove oxygen regulator and oxygen solenoid assembly (Section 8.7, steps 1 through 4).
Page 317: Greasing Rack
Service and repair 8.12.3 Greasing rack (See Figure 8-46). Grease the rack every 15,000 hours and every time you install a new piston/ cylinder assembly; rack grease is part of the 15,000- and 30,000-hour preventive maintenance kits. The rack can be greased with or without the piston/cylinder assembly removed from the ventilator.
Page 318: Meshing Motor Pinion Gear With Rack
Service and repair 8.12.4 Meshing motor pinion gear with rack Caution • Always perform the gear mesh procedure to reinstall the motor/encoder to the piston/cylinder assembly. The failure to perform this procedure properly may result in damage to the piston/cylinder assembly. •...
Page 319: Figure 8-48. Gear Mesh Procedure: Positioning Motor Encoder
Service and repair Applying firm hand force to center of motor just above angle bracket, force motor into mesh with rack. With hand force still applied, push rack back and forth several times. (This will turn the rack until the rack teeth face and the pinion are aligned parallel.) Visually verify that pinion gear meshes with rack teeth.
Page 320: Figure 8-50. Gear Mesh Procedure: Tightening Screws To Slightly Compress Spring Washers
Service and repair With hand force still applied, tighten each screw until it slightly compresses spring washer (Figure 8-50). After all four spring washers are pinched, release meshing force. NOTE: At this point, the screws should be tight enough that the motor would not free-fall under its own weight when turned 90 degrees.
Page 321: Figure 8-51. Gear Mesh Procedure: Pushing Rack From End To End
Service and repair Use your hand to gently twist plain end of shaft, first in one direction, and then in other. Make sure rack does not rock. Make sure rack flag maintains an even distance between optoswitches and that flag does not interfere with optoswitches when rack is moved back and forth.
Page 322: Ventilator Rear Components
Service and repair 8.13 Ventilator rear components 8.13.1 Main fan and filter NOTE: • Clean or replace the fan filter every 250 hours (or more frequently if needed). It is also part of the 15,000- and 30,000-hour preventive maintenance kits. •...
Page 323: Figure 8-52. Ventilator Rear Components
Service and repair Fan filter and cover Power assembly attaching hardware (8 PL) Internal battery compartment cover Power assembly Covers on 7-00195 Fan with fan guard Internal battery Power assembly Covers off 7-00139 Figure 8-52. Ventilator rear components Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev.
Page 324: Power Assembly
Service and repair 8.14 Power assembly Warning To prevent electrical shock hazard, always unplug the power cord from facility power and disconnect the external and internal battery harnesses from the BBU PCB before servicing the power assembly. Caution To prevent damage to ESD-sensitive components, always follow ESD guidelines when servicing the power assembly.
Page 325: Line Filter
Service and repair Power cord Circuit breaker retainer screw Power cord Line filter retainer 7-00128 Figure 8-53. Power assembly pulled out 8.14.3 Line filter Remove the line filter as follows. Install by reversing removal procedure, referring to Figure 9-24 as necessary. Remove power assembly (Section 8.14.2).
Page 326: Circuit Breaker
Service and repair 8.14.4 Circuit breaker Remove the circuit breaker as follows. Install by reversing removal procedure, referring to Figure 9-24 as necessary. Remove power assembly (Section 8.14.2). Disconnect wires from circuit breaker terminals (Figure 8-54). Twist off circuit breaker retainer. Caution To prevent equipment damage, always replace circuit breaker with correct 4A breaker (P/N G-060033-00).
Page 327: External Battery Harness
Service and repair 8.14.6 External battery harness This section details correct installation of the revised external battery harness (G-060113).When mounting the external battery connector into the rear panel of the ventilator, verify the orientation. See Figure 8-56. When installing the harness, verify the cables of the harness are connected per Table 8-1.
Page 328: Power Supply
Service and repair Power supply/ BBU PCB harness Power switch/ BBU PCB harness External battery connector on Power supply BBU PCB output terminal External block External battery battery harness connector 7-00215 Figure 8-57. Power supply output terminal connections 8.14.7 Power supply (See Figure 8-59 and Figure 8-59).
Page 329: Figure 8-59. Power Assembly Removed
Service and repair Before installing a new power supply, verify that it has the correct voltage rating. Refer to Section 9.19 for the correct power supply part number. NOTE: If you are replacing an SSI power supply (older type) with a PULS power supply (newer type) you must make any subsequent power supply replacements with the PULS power supply only (p/n G-061131-00).
Page 330: Figure 8-60. Power Supply Baffle
Service and repair Using 3-mm hex driver, remove two M4 x 12 screws and split-ring washers that attach baffle to power supply (Figure 8-60). Remove baffle. 10. Remove six screws, and disconnect power supply/BBU PCB harness from righthand terminal block on power supply (power supply output) (Figure 8-57). Transfer harness to new power supply, as applicable.
Page 331: Power Supply Fan
Service and repair 8.14.8 Power supply fan NOTE: Replace the fan every 15,000 hours. It is part of the 15,000- and 30,000-hour preventive maintenance kits. (See Figure 8-61). Remove the power supply fan as follows. Install by reversing removal procedure. Remove power supply, but do not remove baffle (Section 8.14.7).
Page 332: Bbu Pcb And Heatsink Bars
Service and repair 8.14.9 BBU PCB and heatsink bars (See Figure 8-61). Remove the BBU PCB and heatsink bars as follows. Remove power supply (Section 8.14.7). Disconnect all harnesses from PCB (both front and rear). Remove two M3 x 12 flat-head, POZIDRIV™* screws that retain each heatsink bar (full- size bars at top and bottom of PCB, plus mini-FET heatsink bar) (Figure 8-62).
Page 333: Fuses
Service and repair Install BBU PCB and heatsink bars by reversing removal procedure. Orient heatsink bars and install conductive strips and FET caps, as shown in Figure 8-62. Caution When installing the BBU PCB, remember to install the conductive strips between the heatsink bars and power assembly, and be sure the FET caps are in place.
Page 334: Figure 8-64. Main Ventilator Head Harness Installed
Service and repair 7-00124 Figure 8-64. Main ventilator head harness installed To air intake To exhalation filter switch solenoid To oxygen solenoid assembly To safety To piezo valve alarm solenoid oxygen To speaker sensor To PEEP pump To main BBU PCB To cylinder To exhalation pressure...
Page 335: Parts List
ECTION Parts list 9.1 How to use this parts list This section begins by showing the entire ventilator system, including accessories. Subsequent figures show ventilator subassemblies and their component parts. At the end of the parts list are ventilator tubing and wiring diagrams, followed by preventive maintenance kit contents.
Page 336: Series Ventilator System Patient System And Accessories Parts List
(Figure 9-1) 700 Series Ventilator System 4-032006-00 • Flex arm assembly (shown in Section 9.4) • Ventilator breathing circuit (Contact your Covidien representative for ordering information.) 4-074600-00 • Filter, inspiratory, reusable (Re/Flex inspiratory bacteria filter, with 22-mm ISO connectors) 4-074601-00 •...
Page 337 Parts list 700 Series Ventilator System patient system and accessories (continued) Item no. Part no. Quantity Description (Figure 9-1) G-061140-00 • Battery kit, external (not shown) (see Section 9.6 for parts breakdown.) G-061260-00 • External battery charger, 110 V, for North America/Japan, with integral power cord (not shown) G-061261-00 •...
Page 338: Figure 9-1. 700 Series Ventilator System (On Older Style Cart)
Parts list 7-00018 Figure 9-1. 700 Series Ventilator System (on older style cart) 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 339: Oxygen Hose Assemblies
Parts list 9.3 Oxygen hose assemblies Oxygen hose assemblies parts list Item no. Part no. Quantity Description (Figure 9-2) 4-001474-00 Hose assembly, oxygen, DISS female x DISS female (for USA and Japan) G-061268-00 Hose assembly, oxygen, DISS female x DISS male (for Canada) (not shown) G-061191-00 Hose assembly, oxygen, Air Liquide™* (for France)
Page 340: Flex Arm Assembly
Parts list 9.4 Flex arm assembly Flex arm assembly parts list Item no. Part no. Quantity Description (Figure 9-3) 4-032006-00 Flex arm assembly 7-00301 Figure 9-3. Flex arm assembly 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 341: Ventilator Major Assemblies
Parts list 9.5 Ventilator major assemblies Ventilator major assemblies parts list Item no. Part no. Quantity Description (Figure 9-4) Ventilator head assembly (See Section 9.9 for parts breakdown.) User interface (UI) assembly (See Section 9.8 for parts breakdown.) G-060514-00 Wire, ground, UI G-060991-00 Nut, HEX, M5 (Attaches ground wire) G-061030-00...
Page 342: Figure 9-4. Ventilator Major Assemblies
Parts list 4 (2 PL) 5 (2 PL) 12 (2 PL) 6 (2 PL) Front view 7-00302 Rear view 7-00182 Figure 9-4. Ventilator major assemblies 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 343: Cart Assembly
Parts list 9.6 Cart assembly Cart assembly parts list Item no. Part no. Quantity Description (Figure 9-5) G-061581-00 Cart assembly, for use with Fisher & Paykel™* humidifiers (Includes items 1- 36) G-061582-00 Cart assembly, for use with Hudson RCI™* ConchaTherm™* 3 humidifier (Includes items 1- 30 and 37- 45) G-062215-00 •...
Page 344 Parts list Cart assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-5) G-061028-00 • Washer, flat, M4 (Attaches ball bracket to cart) (Part of hardware kit, item 47) G-060994-00 • Washer, IN LK, M4 (Attaches ball bracket to cart) (Part of hardware kit, item 47) G-061849-00 Ventilator attachment kit (attaches ventilator to cart, includes...
Page 345 Parts list Cart assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-5) G-062187-00 Caster, back, without brake G-062186-00 Caster, front, with brake Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-11...
Page 346: Figure 9-5. Cart Assembly (Sheet 1 Of 3)
Parts list 46 (2 PL) 12 (4 PL) 13 (4 PL) 14 (4 PL) 15 (4 PL) 10 (2 PL) 11 (4 PL) 46 (4 PL) 7-00178 48 (2 PL) 7 (8 PL) 9 (2 PL) 3 (6 PL) 4 (6 PL) 5 (6 PL) 49 (2 PL) 7-00303...
Page 347 Parts list 18 (2 PL) 19 (2 PL) 20 (2 PL) 33 (2 PL) 34 (2 PL) 35 (2 PL) Fisher & Paykel™* Humidifier mounting 7-00179 24 (4 PL) 25 (4 PL) 26 (4 PL) 23 (2 PL) 7-00181 29 (2 PL) 28 (2 PL) 27 (2 PL) 7-00176...
Page 348 Parts list 44 (2 PL) 45 (2 PL) 43 (2 PL) 42 (4 PL) 41 (4 PL) 40 (4 PL) 7-00180 Hudson RCI™* ConchaTherm™* 3 humidifier mounting Figure 9-5. Cart assembly (Sheet 3 of 3) 9-14 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 349: Shelf Mounting Kit
Parts list 9.7 Shelf mounting kit Shelf mounting kit parts list Item no. Part no. Quantity Description (Figure 9-6) G-061279-00 Mounting kit, shelf, for use with Fisher & Paykel™* humidifiers (Includes items 1 - 22) G-061601-00 Mounting kit, shelf, for use with Hudson RCI™* ConchaTherm™* 3 humidifier (Includes items 1 - 19 and 23 - 24) G-061151-00 •...
Page 350: Figure 9-6. Shelf Mounting Kit
Parts list Shelf mounting kit parts list (continued) Item no. Part no. Quantity Description (Figure 9-6) G-061603-00 • • Bracket assembly, slide, Hudson RCI™* ConchaTherm™* 3 humidifier G-061650-00 • Screw, FH, M5 x 20, POZIDRIV™* (Attaches Hudson RCI™* ConchaTherm™* 3 humidifier support bracket to plate) 3 (3 PL) 4 (3 PL) 5 (3 PL)
Page 351: User Interface (Ui) Assembly
Parts list 9.8 User interface (UI) assembly User interface (UI) assembly parts list Item no. Part no. Quantity Description (Figure 9-7) User interface (UI) assembly G-061427-00 • Lid assembly • • • • Hinge G-061097-00 • Clip, tension G-061055-00 • Nut, HEX, with washer, EX LK, M3 (Attaches tension clip) G-061130-00 •...
Page 352 Parts list User interface (UI) assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-7) • • Nut, HEX (Attaches rotary encoder) (not shown) G-060771-00 • Rotary encoder, UI G-060906-00 • Spacer, nylon, UI encoder (Attaches rotary encoder) (not shown) G-060100-00 •...
Page 353: Figure 9-7. User Interface (Ui) Assembly
Parts list 4 (2 PL) 5 (2 PL) 3 (2 PL) 22 (4 PL) 23 (4 PL) 24 (4 PL) 11 (16 PL) 7 (12 PL) 8 (12 PL) 7-00153 21 (4 PL) 9 (12 PL) 7-00188 Figure 9-7. User interface (UI) assembly Puritan Bennett™...
Page 354: Ventilator Head Assembly
Parts list 9.9 Ventilator head assembly Ventilator head assembly parts list Item no. Part no. Quantity Description (Figure 9-8) Ventilator head assembly G-061132-00 • Cabinet assembly (Also order a label kit (item 20)) • • Enclosure assembly G-060450-00 • • Plate, options panel G-062303-00 •...
Page 355 Parts list Ventilator head assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-8) G-062292-00 • Grounding strap kit, inspiration access panel (kit includes grounding strap, installation instructions, and hardware to attach strap between oxygen regulator and inside of panel) (not shown) 10070985 •...
Page 356 Parts list Ventilator head assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-8) 10071012 • Label kit, Spanish, 760 Ventilator (See Section 9.11 for contents.) (not shown) G-060121-00 • Mounting block, flex arm G-061091-00 • Screw, PAN, M5 x 16, POZIDRIV™* (Attaches mounting block) G-060997-00 •...
Page 357 Parts list Ventilator head assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-8) G-060976-00 • Screw, SOC, M3 x 8 (Attaches cable tie that retains main ventilator head harness) (not shown) G-060995-00 • Washer, SR, M3 (Attaches cable tie that retains main ventilator head harness) (not shown) G-060998-00 •...
Page 358: Figure 9-8. Ventilator Head Assembly (Sheet 1 Of 2)
Parts list 11 (9 PL) 17 (2 PL) Part of 1 18 (2 PL) 22 (4 PL) 23 (4 PL) 29 (4 PL) 14 (4 PL) Part of 1 7-00192 52 (2 PL) 8 (7 PL) 7-00160 Figure 9-8. Ventilator head assembly (Sheet 1 of 2) 9-24 10070389 Rev.
Page 359 Parts list 7-00264 (2 PL) 33 (2 PL) 34 7-00267 Figure 9-8. Ventilator head assembly (Sheet 2 of 2) Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-25...
Page 360 Parts list Table 9-2: Acoustic enhancement upgrade kit, Level 2 Manifold part number, Language Part Number if required English G-062282-00 G-062026-00 French G-062283-00 G-062026-00 German G-062284-00 G-062026-00 Italian G-062285-00 G-062026-00 Spanish G-062286-00 G-062026-00 Portuguese G-062287-00 G-062026-00 Polish G-062288-00 G-062026-00 Russian G-062289-00 G-062026-00 Japanese...
Page 361: Oxygen Hose Adapters
Parts list 9.10 Oxygen hose adapters Oxygen hose adapters parts list Item no. Part no. Quantity Description (Figure 9-9) G-061267-00 Adapter, oxygen hose, DISS male to DISS male (for Canada) G-061192-00 Adapter, oxygen hose, DISS male to Air Liquide™* (for France) G-061193-00 Connector with O-ring, oxygen hose, Air Liquide™* (for France) G-061194-00...
Page 362: Label Kit
Parts list 9.11 Label kit Label kit parts list Item no. Part no. Quantity Description (Figure 9-10) 10070985 Label kit, English, 740 Ventilator 10070993 Label kit, French, 740 Ventilator 10071034 Label kit, German, 740 Ventilator 10070987 Label kit, Italian, 740 Ventilator 10071778 Label kit, Japanese, 740 Ventilator 10070999...
Page 363 Parts list 7-00304 7-00223 7-00306 Figure 9-10. Label kit Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-29...
Page 364: Inspiration Manifold Assembly
Parts list 9.12 Inspiration manifold assembly Inspiration manifold assembly parts list Item no. Part no. Quantity Description (Figure 9-11) Inspiration manifold assembly G-062162-00 Inspiration manifold G-062010-00 • Oxygen sensor (includes oxygen sensor only) G-062009-00 • Oxygen sensor kit (includes oxygen sensor, sensor harness, adapter, and hardware;...
Page 365: Figure 9-11. Inspiration Manifold Assembly
Parts list 5 (4 PL) 6 (4 PL) 7-00241 7-00235 Figure 9-11. Inspiration manifold assembly Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-31...
Page 366: Oxygen Regulator And Oxygen Solenoid Assembly
Parts list 9.13 Oxygen regulator and oxygen solenoid assembly Oxygen regulator assembly parts list Item no. Part no. Quantity Description (Figure 9-12) G-062022-00 Regulator, oxygen 4-019063-00 • Fitting, oxygen, DISS male G-062023-00 Oxygen solenoid assembly 10.7 cm Tube, silicone, 3/4-in. ID x 1-in. OD (Part of tube kit, P/N G-061406-00 (Section 9.21)) (for use with older air intake manifold assembly G-060217-00) 10.5 cm...
Page 367: Figure 9-12. Oxygen Regulator And Oxygen Solenoid Assembly
Parts list 6 (4 PL) 7 (4 PL) 7-00263 7-00224 Figure 9-12. Oxygen regulator and oxygen solenoid assembly Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-33...
Page 368: Exhalation Assembly
Parts list 9.14 Exhalation assembly Exhalation assembly parts list Item no. Part no. Quantity Description (Figure 9-13) Exhalation assembly G-062454-00 Flow sensor mesh kit (not shown) G-061526-00 • Valve assembly, exhalation • • Valve, exhalation G-060823-00 • • O-ring, exhalation valve (not shown) G-060976-00 •...
Page 369: Figure 9-13. Exhalation Assembly
Parts list Part of 1 8 (3 PL) 9 (3 PL) 4 (9 PL) 5 (9 PL) 20 3 PL Figure 9-13. Exhalation assembly Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-35...
Page 370 Parts list Table 9-3: Exhalation isolation kit Part number Description G-062596-00 Foam and washer kit – International English G-062597-00 Foam and washer kit – US English G-062598-00 Foam and washer kit – French G-062599-00 Foam and washer kit – Italian G-062600-00 Foam and washer kit –...
Page 371: Cable Management Bar, Pcbs, Speaker, And Piezo Alarm
Parts list 9.15 Cable management bar, PCBs, speaker, and piezo alarm Cable management bar, PCBs, speaker, and piezo alarm parts list Item no. Part no. Quantity Description (Figure 9-14) G-060924-00 Cable management bar G-060990-00 Nut, HEX, M4 (Attaches bottom of cable management bar) G-060996-00 Washer, SR, M4 (Attaches cable management bar) G-060978-00...
Page 372 Parts list Cable management bar, PCBs, speaker, and piezo alarm parts list (continued) Item no. Part no. Quantity Description (Figure 9-14) G-061397-00 EPROM kit, English, non-U.S. (not shown) (See Figure 9-15 for component locations.) G-061961-00 EPROM kit, U.S. English (not shown) (See Figure 9-15 for component locations.) G-061399-00 EPROM kit, French (not shown) (See Figure 9-15 for component...
Page 373: Figure 9-14. Cable Management Bar, Pcbs, Speaker, And Piezo Alarm
Parts list 7 (4 PL) 18 (7 PL) 20 (7 PL) 19 (7 PL) 8 (4 PL) 21 (2 PL) Cylinder pressure transducer autozero solenoid 6 (2 PL) Exhalation pressure transducer autozero solenoid 10 (4 PL) 23 (2 PL) 11 (4 PL) 3 (2 PL) 12 (4 PL) 7-00112...
Page 374: Figure 9-15. Controller Pcb Component Locations
Parts list 7-00143 Figure 9-15. Controller PCB component locations From From Exhalation Cylinder Inspiration exhalation exhalation pressure pressure pressure flow sensor sensor transducer transducer transducer (bottom) (top) 7-00141 Figure 9-16. Pressure solenoid PCB component locations 9-40 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 375: Peep Pump And Reservoir
Parts list 9.16 PEEP pump and reservoir PEEP pump and reservoir parts list Item no. Part no. Quantity Description (Figure 9-17) G-061133-SP Pump, vibrating armature (PEEP) G-060990-00 Nut, HEX, M4 (Attaches PEEP pump) G-060996-00 Washer, SR, M4 (Attaches PEEP pump) G-061431-00 Reservoir assembly, PEEP •...
Page 376: Figure 9-17. Peep Pump And Reservoir
Parts list 2 (4 PL) 3 (4 PL) 10 (2 PL) 11 (2 PL) 16 (2 PL) 13 (2 PL) 14 (2 PL) 15 (2 PL) Part of 4 7-00100 Front of PEEP reservoir assembly Part of 4 From PEEP pump output To PEEP pump input...
Page 377: Piston/Cylinder And Motor/Encoder Assemblies
Parts list 9.17 Piston/cylinder and motor/encoder assemblies Piston/cylinder and motor/encoder assemblies parts list Item no. Part no. Quantity Description (Figure 9-18) G-061134-00 Piston/cylinder assembly • Bracket, motor angle G-061251-00 • Check valve, cylinder inlet (white housing) G-061250-00 • Check valve, cylinder outlet (blue housing) G-060045-00 •...
Page 378: Figure 9-18. Piston/Cylinder And Motor/Encoder Assemblies (Sheet 1 Of 2)
Parts list 13 (4 PL) 14 (4 PL) 15 (4 PL) Part of 1 17 (8 PL) 7 (2 PL) 18 (8 PL) 8 (2 PL) 16 (2 PL) 7-00035 5 (2 PL) Inlet check valve (translucent leaf/ Outlet check valve white housing) (translucent leaf/ blue housing)
Page 379 Parts list 7-00308 7-00195 Figure 9-18. Piston/cylinder and motor/encoder assemblies (Sheet 2 of 2) Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-45...
Page 380: Ventilator Rear Components
Parts list 9.18 Ventilator rear components Ventilator rear components parts list Item no. Part no. Quantity Description (Figure 9-19) G-061139-00 Battery, internal Power assembly (See Section 9.19 for parts breakdown.) G-061094-00 Screw, PAN, M3 x 12, POZIDRIV™*, with captive washers (Attaches power assembly) G-060447-00 Back panel...
Page 381: Figure 9-19. Ventilator Rear Components
Parts list (4 PL) 3 (8 PL) 10 (4 PL) 12 (4 PL) 13 (4 PL) 14 (4 PL) 7-00139 Figure 9-19. Ventilator rear components Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-47...
Page 382: Power Assembly
Parts list 9.19 Power assembly Power assembly parts list Item no. Part no. Quantity Description (Figure 9-20) Power assembly G-060113-00 • Harness, external battery G-060986-00 • Screw, FH, M3 x 8, POZIDRIV™* (Attaches external battery harness) G-060979-00 • Screw, SOC, M4 x 12 (Attaches power supply to back panel) G-060996-00 •...
Page 383 Parts list Power assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-20) G-061027-00 • Screw, SOC, M3 x 6 (Attaches BBU PCB) G-060995-00 • Washer, SR, M3 (Attaches BBU PCB) G-060989-00 • Nut, HEX, M3 (Attaches BBU PCB) G-060517-00 •...
Page 384 Parts list Power assembly parts list (continued) Item no. Part no. Quantity Description (Figure 9-20) G-060829-00 • Harness, internal battery (not shown) G-060846-00 • Harness, BBU PCB/ventilator head • Label, power switch 9-50 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 385: Figure 9-20. Power Assembly (Sheet 1 Of 2)
Parts list 48 (2 PL) 44 (2 PL) 45 (2 PL) 7-00216 3 (3 PL) 4 (3 PL) (2 PL) 7-00126 52 (2 PL) 44 (2 PL) 45 (2 PL) 26 (6 PL) 27 (6 PL) 7-00127 Figure 9-20. Power assembly (Sheet 1 of 2) Puritan Bennett™...
Page 386 Parts list 22 (4 PL) 31 (2 PL) 23 (4 PL) 33 (2 PL) 24 (4 PL) 28 (6 PL) 49 (2 PL) 29 (6 PL) 32 (2 PL) 36 (2 PL) 30 (6 PL) 20 (2 PL) 7-00238 30 (6 PL) 28 (6 PL) 29 (6 PL) 34 (6 PL)
Page 387: Figure 9-21. Bbu Pcb Component Locations
Parts list 7-00151 Figure 9-21. BBU PCB component locations Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-53...
Page 388: Power Cords
Parts list 9.20 Power cords Power cords parts list Item no. Part no. Quantity Description (Figure 9-22) G-061241-00 Power cord, for North America/Japan G-061242-00 Power cord, for Australia G-061243-00 Power cord, for continental Europe G-061247-00 Power cord, for India/South Africa (old, British-style plug with round prongs) G-061248-00 Power cord, for Israel...
Page 389 Parts list 7-00309 Figure 9-22. Power cords Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-55...
Page 390: Tubing
Parts list 9.21 Tubing Tubing parts list Item no. Quantity/ Part no. Description (Figure 9-23) length G-061407-00 Tube kit, silicone, 3-mm ID x 6-mm OD, 65.5 cm (Can be cut to supply one each of the following 3-mm ID x 6-mm OD tubes) (G-060125-00) (not shown) 16.0 cm •...
Page 391 Parts list Figure 9-23. Tubing Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-57...
Page 392: Harnesses And Wiring
Parts list 9.22 Harnesses and wiring Harnesses and wiring parts list Item no. Part no. Quantity Description (Figure 9-24) G-060104-00 Harness, ventilator head, main G-060100-00 Cable assembly, UI/ventilator head G-060846-00 Harness, BBU PCB/ventilator head G-060514-00 Wire, ground, UI G-060113-00 Harness, external battery G-060117-00 Harness, power supply/BBU PCB G-060110-00...
Page 393: Figure 9-24. Wiring Diagram (Sheet 1 Of 2)
Parts list Figure 9-24. Wiring diagram (Sheet 1 of 2) Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 9-59...
Page 394 Parts list Figure 9-24. Wiring diagram (Sheet 2 of 2) 9-60 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual...
Page 395: 15,000-Hour Preventive Maintenance Kit
Parts list 9.23 15,000-hour preventive maintenance kit 15,000-hour preventive maintenance kit parts list Item no. Part no. Quantity Description (Figure 9-25) G-061166-00 Kit, preventive maintenance, 15,000-hour • Filter, fan G-060129-00 • Fan, main G-060131-00 • Fan, power supply G-060090-00 • Solenoid, exhalation G-062022-00 •...
Page 396: 30,000-Hour Preventive Maintenance Kit
Parts list 9.24 30,000-hour preventive maintenance kit 30,000-hour preventive maintenance kit parts list Item no. Part no. Quantity Description (Figure 9-26) G-061167-00 Kit, preventive maintenance, 30,000-hour • Filter, fan G-060129-00 • Fan, main G-060131-00 • Fan, power supply G-060090-00 • Solenoid, exhalation G-062022-00 •...
Page 397: Oxygen Sensor Assemblies
Parts list 9.25 Oxygen sensor assemblies 700 Series Ventilator oxygen sensor assemblies Item no. Part no. Quantity Description G-062022-00 • Regulator, oxygen G-062023-00 • Oxygen solenoid assembly G-062009-00 • Oxygen sensor kit (includes oxygen sensor, sensor harness, adapter, and hardware; replaces sensor with integral harness) 4-072214-00 •...
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Page 399: Alphabetic Part Index
ECTION Alphabetic part index Description Part no. Figure no. Item no. Adapter, humidifier electrical G-061627-00 Figure 9-1 Adapter, oxygen hose, DISS male to 1/4 NPT (for United G-061177-00 Figure 9-9 Kingdom/Australia) Adapter, oxygen hose, DISS male to Air Liquide™* (for G-061192-00 Figure 9-9 France)
Page 400 Alphabetic part index Description Part no. Figure no. Item no. Bracket, motor angle Figure 9-18 Bracket, oxygen cylinder (upper) Figure 9-5 Bracket, shelf mounting G-061151-00 Figure 9-6 Bracket assembly, slide, Hudson RCI™* G-061603-00 Figure 9-5 ConchaTherm™* 3 humidifier, cart-mount Figure 9-6 Bumpers, cart (quantity 4 cart, 2 handle) G-062019-00 Figure 9-5...
Page 401 Alphabetic part index Description Part no. Figure no. Item no. Cover, exhalation assembly insulation G-060489-00 Figure 9-13 Cover, external battery G-061176-00 Figure 9-4 Cover, fan filter (part of fan guard assembly, G-060834-00) Figure 9-19 Cover, oxygen cylinder Figure 9-5 Cover, rack G-062161-00 Figure 9-18 Enclosure assembly...
Page 402 Alphabetic part index Description Part no. Figure no. Item no. Filter, expiratory, disposable (D/X7 expiratory bacteria filter, G-060526-00 Figure 9-1 with 22-mm ISO connectors), carton of 12 Filter, expiratory, reusable (Re/Flex expiratory bacteria filter, G-060525-00 Figure 9-1 with 22-mm ISO connectors) Filter, fan (package of 6) G-061263-00 Figure 9-19...
Page 403 Alphabetic part index Description Part no. Figure no. Item no. Harness, power supply/BBU PCB G-060117-00 Figure 9-20 Figure 9-24 Harness, power switch/BBU PCB G-060116-00 Figure 9-20 Figure 9-24 Harness, power switch/power supply G-060111-00 Figure 9-20 Figure 9-24 Harness, ventilator head, main G-060104-00 Figure 9-14 Figure 9-24...
Page 404 Alphabetic part index Description Part no. Figure no. Item no. Kit, preventive maintenance, 30,000-hour G-061167-00 Figure 9-26 Kit, 700 Series Ventilator return (repackaging) G-060872-00 Kit, upgrade, 740-to-760 Ventilator, English G-062030-00 Section 9.27 Kit, upgrade, 740-to-760 Ventilator, French G-062153-00 Section 9.27 Kit, upgrade, 740-to-760 Ventilator, German G-062154-00 Section 9.27...
Page 405 Alphabetic part index Description Part no. Figure no. Item no. Label kit, Dutch, 760 Ventilator 10071018 Figure 9-8 Figure 9-10 Label kit, English, 760 Ventilator 10071783 Figure 9-8 Figure 9-10 Label kit, French, 760 Ventilator 10071008 Figure 9-8 Figure 9-10 Label kit, German, 760 Ventilator 10071001 Figure 9-8...
Page 406 Alphabetic part index Description Part no. Figure no. Item no. Nut, HEX (Attaches rotary encoder) Figure 9-7 Nut, HEX, M2.5 (Attaches LCD panel) G-060988-00 Figure 9-7 Nut, HEX, M3 (Attaches BBU PCB) G-060989-00 Figure 9-20 Nut, HEX, M4 (Attaches bottom of cable management bar) G-060990-00 Figure 9-14 Nut, HEX, M4 (Attaches keyboard to PCB)
Page 407 Alphabetic part index Description Part no. Figure no. Item no. Plate, inspiratory access panel, Japanese G-062311-00 Figure 9-8 Plate, inspiratory access panel, Polish G-062309-00 Figure 9-8 Plate, inspiratory access panel, Portuguese G-062308-00 Figure 9-8 Plate, inspiratory access panel, Russian G-062310-00 Figure 9-8 Plate, inspiratory access panel, Spanish G-062307-00...
Page 408 Alphabetic part index Description Part no. Figure no. Item no. Screw, FH, M3 x 12, POZIDRIV™* (Attaches FET heat bars) G-061024-00 Figure 9-20 Screw, FH, M3 x 12, POZIDRIV™* (Attaches miniFET heat Figure 9-20 bar) Screw, FH, M4 x 6, POZIDRIV™* (Attaches power supply G-060987-00 Figure 9-20 from bottom)
Page 409 Alphabetic part index Description Part no. Figure no. Item no. Screw, SOC, M3 x10 (Attaches fan to fan guard) G-061031-00 Figure 9-19 Screw, SOC, M3 x 10 (Attaches inspiration manifold) Figure 9-11 Screw, SOC, M3 x 10 (Attaches mixing manifold) Figure 9-12 Screw, SOC, M3 x 10 (Attaches oxygen sensor holder to Figure 9-11...
Page 410 Alphabetic part index Description Part no. Figure no. Item no. Spacer, nylon, UI encoder (Attaches rotary encoder) G-060906-00 Figure 9-7 Speaker G-060496-00 Figure 9-14 Standoff, M3 (attaches pressure solenoid PCB) G-061677-00 Figure 9-14 Standoff, male-female, M3 x 6 (Separates BBU PCB from G-060535-00 Figure 9-20 power tray)
Page 411 Ventilator attachment kit (attaches ventilator to cart) G-061849-00 Figure 9-5 27-29 Ventilator breathing circuit Contact your Figure 9-1 Covidien representative for ordering information. Washer, EX LK, M4 (Attaches ball bracket to cart) Figure 9-5 Washer, EX LK, M6 (Attaches column to base)
Page 412 Alphabetic part index Description Part no. Figure no. Item no. Washer, flat, M5 (Attaches exhalation assembly cover) G-060999-00 Figure 9-13 Washer, flat, M5 (Attaches ground wire) Figure 9-4 Washer, flat, M5 (Attaches Hudson support bracket to cart Figure 9-5 interface bracket) Washer, flat, M5 (Attaches humidifier support bracket to Figure 9-5 cart)
Page 413 Alphabetic part index Description Part no. Figure no. Item no. Washer, SR, M4 (Attaches autozero solenoids) G-060996-00 Figure 9-14 Washer, SR, M4 (Attaches baffle to power supply) Figure 9-20 Washer, SR, M4 (Attaches cable management bar) Figure 9-14 Washer, SR, M4 (Attaches collector vial bracket to plate) Figure 9-6 Washer, SR, M4 (Attaches collector vial support bracket to Figure 9-5...
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Page 415: Numeric Parts Index
ECTION Numeric parts index Part no. Description Figure no. Item no. 4-001474-00 Hose assembly, oxygen, DISS female x DISS female (for USA Figure 9-2 and Japan) 4-011905-00 Filter (PEEP pump air intake) Figure 9-17 4-019063-00 Fitting, oxygen, DISS male Figure 9-8 Figure 9-12 4-032006-00 Flex arm assembly...
Page 416 Numeric parts index Part no. Description Figure no. Item no. G-060110-00 Harness, circuit breaker/power switch Figure 9-20 Figure 9-24 Harness, line filter/circuit breaker Figure 9-20 Figure 9-24 G-060111-00 Harness, power switch/power supply Figure 9-20 Figure 9-24 G-060113-00 Harness, external battery Figure 9-20 Figure 9-24 G-060116-00...
Page 417 Numeric parts index Part no. Description Figure no. Item no. G-060535-00 Standoff, male-female, M3 x 6 (Separates BBU PCB from Figure 9-20 power tray) G-060759-00 Tape, PTFE (Used on threads of oxygen adapters) Figure 9-9 Tape, PTFE (Used on threads of oxygen fitting) Figure 9-8 Tape, PTFE (Used on threads of oxygen fitting, oxygen Figure 9-12...
Page 418 Numeric parts index Part no. Description Figure no. Item no. G-060980-00 Screw, SOC, M5 x 8 (Attaches ventilator to shelf mount) Figure 9-6 G-060986-00 Screw, FH, M3 x 8, POZIDRIV™* (Attaches power supply fan Figure 9-20 bracket to base) Screw, FH, M3 x 8, POZIDRIV™* (Attaches external battery Figure 9-20 harness) Screw, FH, M3 x 8, POZIDRIV™* (Attaches line filter)
Page 419 Numeric parts index Part no. Description Figure no. Item no. Washer, SR, M4 (Attaches PEEP pump) Figure 9-17 Washer, SR, M4 (Attaches PEEP reservoir) Figure 9-17 Washer, SR, M4 (Attaches power supply to back panel) Figure 9-20 Washer, SR, M4 (Attaches baffle to power supply) Figure 9-20 G-060997-00 Washer, SR, M5 (Attaches humidifier support bracket to...
Page 420 Numeric parts index Part no. Description Figure no. Item no. G-061055-00 Nut, HEX, with washer, EX LK, M3 (Attaches expiratory filter Figure 9-13 housing to cabinet) Nut, HEX, with washer, EX LK, M3 (Attaches tension clip) Figure 9-7 Nut, HEX, with washer, EX LK, M3 (Attaches UI to lid) Figure 9-7 G-061061-00 Bracket, BBU PCB grommet...
Page 421 Numeric parts index Part no. Description Figure no. Item no. G-061130-00 PCB, UI display Figure 9-7 G-061131-00 Power supply, 120/230 V, 740/760 Ventilators (230 V regions, Figure 9-20 all languages) G-061132-00 Cabinet assembly Figure 9-8 G-061133-00 Pump, vibrating armature (PEEP) Figure 9-17 G-061134-00 Piston/cylinder assembly...
Page 422 Numeric parts index Part no. Description Figure no. Item no. G-061205-00 Basket Figure 9-5 G-061227-00 Mounting kit, Fisher & Paykel™* humidifiers, cart Figure 9-5 G-061228-00 Mounting kit, Hudson RCI™* ConchaTherm™* 3 Figure 9-5 humidifier, cart G-061231-00 Bracket, collector vial support Figure 9-5 G-061232-00 Fisher &...
Page 423 Numeric parts index Part no. Description Figure no. Item no. 10070990 Label kit, Portuguese, 740 Ventilator Figure 9-8 Figure 9-10 10070999 Label kit, Polish, 740 Ventilator Figure 9-8 Figure 9-10 10071778 Label kit, Japanese, 740 Ventilator Figure 9-8 Figure 9-10 10070995 Label kit, Russian, 740 Ventilator Figure 9-8...
Page 424 Numeric parts index Part no. Description Figure no. Item no. G-061526-00 Valve assembly, exhalation Figure 9-13 G-061541-00 Oxygen regulator pressure transducer (P ) calibration tool Section 4.2.3.2.2 G-061556-00 Fuse, 15 A, 32 V, blade (external battery) Figure 9-4 G-061572-00 Switch, air intake filter Figure 9-8 G-061581-00 Cart assembly, for use with Fisher &...
Page 425 Numeric parts index Part no. Description Figure no. Item no. G-062022-00 Regulator, oxygen Figure 9-12 Figure 9-25 Figure 9-26 G-062023-00 Oxygen solenoid assembly Figure 9-12 Section 9.13 G-062024-00 Check valve, pressure relief (white housing) Figure 9-8 G-062025-00 Check valve, air intake (blue housing) Figure 9-8 G-062026-00 Manifold assembly, air intake (replaces previous air intake...
Page 426 Numeric parts index Part no. Description Figure no. Item no. G-062213-00 Hardware kit, cart Figure 9-5 G-062215-00 Base assembly, cart Figure 9-5 G-062216-00 Column assembly, cart Figure 9-5 G-062218-00 Keyboard, 760 UI, English (not shown) Figure 9-7 G-062219-00 Keyboard, 760 UI, French (not shown) Figure 9-7 G-062220-00 Keyboard, 760 UI, German (not shown)
Page 427 ECTION Index Symbols Alert log clearing 4-20 key, description 1-25 description 4-4 format 4-23 Numerics reviewing 4-23 Alert, technical, description 3-21 100% O Altitude requirements 1-4 description 1-25 APNEA 1-25 15,000-hour preventive maintenance kit, parts list APNEA PARAMS indicator, description 1-27 9-61 APNEA PARAMS key 30,000-hour preventive maintenance kit, parts list...
Page 428 Index Brackets, oxygen cylinder, removing/installing 8-8 Cleaning BREATH TIMING display 1-28 accessories. See Operator’s Manual Breath type/mode settings 1-22 repair-related 8-3 Breathing circuit, ventilator Clear alert log function 4-20 description 2-26 CLEAR key, description 1-26 specifications 1-6 Clear test log function 4-20 Codes diagnostic 6-1–6-40 ventilator status, responding to 6-2...
Page 429 Index Disassembly and reassembly 8-1–8-76 Exhalation heater assembly See also name of individual part description 2-28 accessories. See service manual for accessory installing 8-42 Display removing 8-40–8-41 See also name of specific display Exhalation pressure transducer autozero solenoid LCD panel (message window) description 2-28 photograph 2-57 removing/installing 8-54...
Page 430 Index Gear mesh procedure 8-60–8-63 General information 1-1–1-32 Graph, pressure bar (display), description 1-29 main Graph, volume bar (display), description 1-30 description 2-60 Greasing rack 8-59 removing/installing 8-64 Ground resistance check 5-5 power supply Ground resistance, specifications 1-6 description 2-45 removing/installing 8-73 Fault, in EST, definition 3-11 Filter...
Page 431 Index Inspiratory filter Leakage current description 2-26 check 5-5 specifications 1-8 Lid assembly. See User interface (UI) assembly INSPIRATORY PRESSURE key, description 1-23 Light. See name of specific light Inspiratory time, specifications 1-8 Limitations on ventilator settings 1-22 Interconnect diagram 9-58–9-60 Line filter Internal battery description 2-42...
Page 432 Index MEAN PRESSURE key/display Oxygen cylinder covers, removing 8-9 description 1-27 Oxygen fitting Measuring and display devices, specifications 1-7– description 2-10 removing/installing 8-28–8-30 MENU key types 1-5 description 1-25 Oxygen hose assembly Message window description 2-10 description 1-27 parts list 9-5 photograph 2-57 Oxygen mixing manifold removing/installing 8-18...
Page 433 Index preventive maintenance kit removing/installing 8-55–8-56 15,000-hour 9-61 PEEP/CPAP (exhalation) solenoid 30,000-hour 9-62 description 2-22 See also Alphabetic and Numeric part removing/installing 8-56 indexes PEEP/CPAP key, description 1-24 shelf mount 9-15–9-16 PEEP/CPAP key/display tubing 9-56–9-57 description 1-27 user interface (UI) assembly 9-17–9-19 PEEP/CPAP pressure, specifications 1-8 ventilator head assembly 9-20–9-25 PEEP/CPAP system...
Page 434 Index Pneumatic system Preventive maintenance diagram 2-4 resetting hours until next 4-21 table of component descriptions 2-5–2-6 schedule 1-18 theory of operation 2-3–2-33 Preventive maintenance kit Potential equalization connector, description 2-42 15,000-hour, parts list 9-61 Power assembly 30,000-hour, parts list 9-62 description 2-39–2-45 Principles of operation 2-1–2-82 parts list 9-48–9-53...
Page 435 Index SAFETY VALVE OPEN light, description 1-31 Short self-test (SST) Safety, general repair 8-1–8-2 See also Operator’s Manual Schedule of periodic maintenance 1-18 when to run 3-6 Self-tests SIMV key, description 1-22 list 3-1–3-2 Software (EPROMs), removing/installing 8-50–8-53 specifications 1-8 Software errors, responding to 6-2 Self-tests 3-1–3-21 Solenoid...
Page 436 Index serial communications port 1-7 safety valve open (SVO) 2-81–2-82 service 1-8–1-9 ventilator inoperative (VENT INOP) 2-80 spontaneous minute volume 1-8 Theory of operation 2-1–2-82 total minute volume 1-8 Thermistor assembly ventilator 1-4–1-9 air flow ventilator breathing circuits 1-6 description 2-61 ventilator connectors 1-5 removing/installing 8-28 weight 1-4...
Page 437 Index service and repair 8-14–8-19 Utilities functions 4-24 summary of functions 4-2 Valve assembly exhalation description 2-29 removing/installing 8-44 safety, description 2-22 VCV key, description 1-22 Ventilator 1-4 Ventilator breathing circuit description 2-26 specifications 1-6 Ventilator head assembly, parts list 9-20–9-25 Ventilator inoperative (VENT INOP) condition operational description 2-80 responding to 6-1...
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