Nellcor 840 Service manual
840
Ventilator System
Service Manual
4-070496-00 Rev K
August 2010
Copyright information
Copyright 2010 Nellcor Puritan Bennett LLC. All rights reserved. The Puritan Bennett ™ 840 Ventilator System is
manufactured in accordance with Puritan Bennett proprietary information, covered by one or more of the following
U.S. Patents and foreign equivalents: 5,271,389; 5,319,540; 5,339,807; 5,390,666; 5,771,884; 5,791,339; 5,813,399;
5,865,168; 5,881,723; 5,884,623; 5,915,379; 5,915,380; 6,024,089; 6,161,539; 6,220,245; 6,269,812; 6,305,373;
6,360,745; 6,369,838; 6,553,991; 6,668,824; 6,675,801; 7,036,504; 7,117,438; and RE39225. 840, 800 Series,
DualView, SandBox, SmartAlert, and Flow-by, are trademarks of Nellcor Puritan Bennett LLC.
The information contained in this manual is the sole property of Nellcor Puritan Bennett LLC and may not be
duplicated without permission. This manual may be revised or replaced by Puritan Bennett at any time and without
notice. You should ensure you have the most current applicable version of this manual; if in doubt, contact the
Technical Support Department of Nellcor Puritan Bennett LLC. or your local representative. While the information
set forth herein is believed to be accurate, it is not a substitute for the exercise of professional judgment.
The ventilator should be operated and serviced only by trained professionals. Puritan Bennett’s sole responsibility
with respect to the ventilator, and its use, is as stated in the limited warranty provided.
Nothing in this manual shall limit or restrict in any way Puritan Bennett’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, Puritan Bennett has no obligation to furnish any such revisions, changes, or
modifications to the owner or user of the equipment (including its software) described herein.
Manufacturer: Authorized Representative:
Nellcor Puritan Bennett LLC Tyco Healthcare UK Limited
4280 Hacienda Drive 154 Fareham Road
Pleasanton, CA 94588-2719 Gosport
USA PO13 0AS
UK
Phone: +800.255.6774
Preface
Warning
Caution
Definitions
This manual uses three special indicators to convey information of a specific nature.
They include:
Indicates a condition that can endanger the patient or the ventilator operator.
Indicates a condition that can damage the equipment.
NOTE:
Indicates points of particular interest that make operation of the ventilator more efficient or
convenient.
Warnings, cautions, and notes
Please take the time to familiarize yourself with the following caveats as they cover safety
considerations, special handling requirements, and regulations that govern the use of the
Puritan Bennett™ 840 Ventilator System.
• To ensure proper servicing and avoid the possibility of physical injury, only qualified
personnel should attempt to service or make authorized modifications to the ventilator.
• To prevent possible personal injury and equipment damage, make sure the brakes on the
casters are set to prevent inadvertent movement of the ventilator during service.
•
The user of this product shall have sole responsibility for any ventilator malfunction
due to operation or maintenance performed by anyone not trained by Puritan Bennett
staff.
• To avoid an electrical shock hazard while servicing the ventilator, be sure to remove all
power to the ventilator by disconnecting the power source and turning off all ventilator
power switches.
• 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 Puritan Bennett 840 Ventilator
System and oxygen hoses.
Do not use oxygen hoses that are worn, frayed, or contaminated by combustible materials
such as grease or oils. (Textiles, oils, and other combustibles are easily ignited and burn
with great intensity in air enriched with oxygen.)
In case of fire or a burning smell, immediately disconnect the ventilator from the oxygen
supply, facility power, and BPS.
• When handling any part of the Puritan Bennett 840 Ventilator System, always follow your
hospital infection control guidelines for handling infectious material.
Puritan Bennett recognizes cleaning, sterilization, sanitation, and disinfection practices
vary widely among healthcare institutions. It is not possible for Puritan Bennett to specify
or require specific practices that will meet all needs, or to be responsible for the
effectiveness of cleaning, sterilization, and other practices carried out in the patient care
setting.
Puritan Bennett does recommend users of its products that require cleaning and
sterilization/disinfection consider the National Standards and Recommended Practices for
Sterilization published by the Association for the Advancement of Medical
Instrumentation (AAMI), as well as the following Center for Disease Control (CDC)
ii Puritan Bennett 800 Series Ventilator System Service Manual
Preface
2003 – 10
3510 02 1223
Year of manufacture
Sequential number
publications: Guidelines for Maintenance of In-use Respiratory Therapy Equipment and
Guidelines for Prevention of Nosocomial Pneumonia.
• Patients on life-support equipment should be appropriately monitored by competent
medical personnel and suitable monitoring devices.
• The Puritan Bennett 840 Ventilator System is not intended to be a comprehensive
monitoring device and does not activate alarms for all types of dangerous conditions for
patients on life-support equipment.
• For a thorough understanding of ventilator operations, be sure to thoroughly read the
Puritan Bennett 800 Series Ventilator System Operator’s and Technical Reference Manual before
attempting to use the system.
• Before activating any part of the ventilator, be sure to check the equipment for proper
operation and, if appropriate, run SST (Short Self Test).
• Do not use sharp objects to make selections on the graphical user interface (GUI) display
or keyboard.
• Federal law (U.S.) restricts the sale of this device to, or by the order of, any physician.
• Check the ventilator periodically as outlined in this manual; do not use if defective.
Immediately replace parts that are broken, missing, obviously worn, distorted, or
contaminated.
• An alternative source of ventilation should always be available when using the Puritan
Bennett 840 Ventilator System.
Year of manufacture
The year of manufacture for ventilators whose serial numbers begin with 4200 is indicated on
the rear panel of the BDU as shown here. The two digit number following the year indicates
the month of manufacture.
For ventilators whose serial numbers begin with 3510, the year of manufacture is indicated by
the serial number’s 5th and 6th digits. In the example below, a ventilator with serial number
3510021223 was the 1223rd unit built in 2002.
Puritan Bennett 800 Series Ventilator System Service Manual iii
Preface
Warning
Electromagnetic susceptibility
The Puritan Bennett 840 Ventilator System complies with the requirements of IEC 60601-1-2
(EMC Collateral Standard), including the E-field susceptibility requirements at a level of 10
volts per meter, at frequencies from 26 MHz to 1 GHz, and the ESD requirements of this
standard. However, even at this level of device immunity, certain transmitting devices
(cellular phones, walkie-talkies, cordless phones, paging transmitters, etc.) emit radio
frequencies that could interrupt ventilator operation if located in a range too close to the
ventilator. It is difficult to determine when the field strength of these devices becomes
excessive. Practitioners should be aware radio frequency emissions are additive, and that the
ventilator must be located a sufficient distance from transmitting devices to avoid
interruption. Do not operate the ventilator in a magnetic resonance imaging (MRI)
environment. Chapter 7 describes possible ventilator alarms and what to do if they occur.
Consult with your institution’s biomedical engineering department in case of interrupted
ventilator operation and before relocating any life support equipment.
Accessory equipment connected to the analog and digital interfaces must be certified
according to IEC 60601-1. Furthermore, all configurations shall comply with the
system standard IEC 60601-1-1. Any person who connects additional equipment to the
signal input part or signal output part of the Puritan Bennett 840 ventilator configures
a medical system, and is therefore responsible for ensuring the system complies with
the requirements of the system standard IEC 60601-1-1. If in doubt, consult
Puritan Bennett Technical Support at 1.800.255.6774 or your local representative.
Customer assistance
If you require further assistance, contact Nellcor Puritan Bennett LLC at 1.800.255.6774 or
your local Puritan Bennett representative.
Additional information
For online technical support, visit the SolvITSM Center Knowledge
Base at http://www.puritanbennett.com. The SolvIT Center provides
answers to frequently asked questions about the Puritan Bennett
840 Ventilator System and other Puritan Bennett products 24 hours a
day, 7 days a week.
About this manual
This manual provides information needed to service the Puritan Bennett 840 Ventilator
System. This manual is intended for use by certified biomedical engineering technicians or
personnel with equivalent experience and training in servicing this type of equipment. It is
recommended the user complete the Puritan Bennett training class geared specifically to the
Puritan Bennett 840 Ventilator System.
While this manual covers the ventilator configurations currently supported by
Puritan Bennett, it may not be all-inclusive and may not be applicable to your ventilator. You
should ensure you have the most current applicable version of this manual; if in doubt,
contact Puritan Bennett or visit the Puritan Bennett product manual Web page at
http://www.puritanbennett.com/serv/manuals.aspx
Some illustrations and photos are shown with a ready-to-assemble (RTA) cart, Puritan Bennett
800 Series Ventilator Compressor Mount Cart or a Puritan Bennett 800 Series Ventilator Pole
Cart. Please note these images are for illustrative purposes only, and regardless of which cart
you have, the required information is provided.
The term “RTA cart” refers to the ready-to-assemble cart and any earlier cart versions.
Within the USA, contact Puritan Bennett at 1.800.255.6774 for questions regarding the
applicability of the information.
iv Puritan Bennett 800 Series Ventilator System Service Manual
1 General information
1.1 How to use this manual...............................................................................................1-1
1.2 General product description ........................................................................................1-1
1.3 Configuration information...........................................................................................1-2
1.4 Accessories ..................................................................................................................1-3
1.5 Specifications ..............................................................................................................1-4
1.6 Compliance and approvals ..........................................................................................1-9
1.6.1 Manufacturer’s Declaration ...............................................................................1-11
1.7 Technical information................................................................................................ 1-17
1.8 Range, resolution, accuracy, and new patient/default settings ..................................1-19
1.9 Tools, equipment, and service materials ....................................................................1-29
1.10 Periodic maintenance ..............................................................................................1-35
1.11 Service kits ..............................................................................................................1-37
1.12 Controls and indicators ..........................................................................................1-39
1.13 Onscreen symbols and abbreviations.......................................................................1-61
1.14 Ventilator serial numbers and software version ........................................................1-61
1.15 Service philosophy...................................................................................................1-61
SECTION
CONTENTS
2 Theory of operation
2.1 Major ventilator subassemblies ....................................................................................2-1
2.1.1 Breath delivery unit (BDU)...................................................................................2-2
2.1.2 Graphic user interface (GUI) ................................................................................2-3
2.1.3 806 Compressor Unit ..........................................................................................2-4
2.1.4 802 or 803 Backup Power Source (BPS)...............................................................2-4
2.1.5 Cart.....................................................................................................................2-5
2.1.6 Patient system .....................................................................................................2-6
2.2 Operational overview ..................................................................................................2-7
2.3 Pneumatic system .....................................................................................................2-11
2.3.1 Inspiratory module ............................................................................................2-16
2.3.1.1 Gas supply conditioning subsystem........................................................2-17
2.3.1.2 Flow control subsystem ..........................................................................2-23
2.3.1.3 Safety valve and inspiration monitoring subsystem.................................2-26
2.3.1.4 Inspiratory module operation .................................................................2-32
2.3.2 Patient System...................................................................................................2-36
2.3.2.1 Patient system components....................................................................2-37
2.3.2.2 Patient system operation ........................................................................2-38
2.3.3 Exhalation module.............................................................................................2-38
2.3.3.1 Exhalation module components ............................................................. 2-39
2.3.3.2 Exhalation module operation ................................................................. 2-40
2.3.4 806 Compressor Unit ........................................................................................2-43
2.3.4.1 806 Compressor unit components .........................................................2-43
2.3.4.2 806 Compressor unit operation..............................................................2-46
Puritan Bennett 800 Series Ventilator System Service Manual
v
Contents
2.4.1 Summary of electrical components ................................................................... 2-48
2.4.2 Overview of electrical system operation ............................................................ 2-53
2.4.3 AC distribution components ............................................................................ 2-62
2.4.3.1 Power cord ............................................................................................ 2-62
2.4.3.2 AC panel................................................................................................ 2-62
2.4.3.3 Power switch ......................................................................................... 2-65
2.4.4 Power supply .................................................................................................... 2-66
2.4.5 BPS ................................................................................................................... 2-68
2.4.6 Card Cage ........................................................................................................ 2-71
2.4.6.1 Motherboard PCB.................................................................................. 2-73
2.4.6.2 BDU CPU PCB........................................................................................ 2-76
2.4.6.3 Analog interface (AI) PCB....................................................................... 2-80
2.4.7 Data key subsystem .......................................................................................... 2-82
2.4.8 GUI................................................................................................................... 2-82
2.4.8.1 GUI CPU PCB ........................................................................................ 2-82
2.4.8.2 Touch frame PCB................................................................................... 2-90
2.4.8.3 Keyboard assembly with knob ............................................................... 2-91
2.4.8.4 GUI LED PCB ......................................................................................... 2-93
2.4.8.5 Backlight inverter PCB and LCD lamps................................................... 2-94
2.4.8.6 GUI alarm assembly ............................................................................... 2-95
2.4.9 BDU LED PCB ................................................................................................... 2-97
2.4.10 Inspiratory electronics PCB.............................................................................. 2-97
2.4.11 Exhalation transducer PCB .............................................................................. 2-99
2.4.11.1 BD (continuous-tone) alarm assembly.................................................. 2-101
2.4.12 806 Compressor unit .................................................................................... 2-101
2.4.12.1 806 compressor unit AC power distribution components and motor ... 2-103
2.4.12.2 806 compressor PCB ........................................................................... 2-103
2.4.12.3 806 Compressor unit operation ........................................................... 2-107
2.5 Breath delivery........................................................................................................ 2-109
2.5.1 Inspiration....................................................................................................... 2-109
2.5.1.1 Pressure triggering............................................................................... 2-111
2.5.1.2 Flow triggering .................................................................................... 2-111
2.5.1.3 Time-cycling method........................................................................... 2-111
2.5.1.4 Operator triggering ............................................................................. 2-111
2.5.2 Exhalation....................................................................................................... 2-111
2.5.2.1 Time-cycling method........................................................................... 2-112
2.5.2.2 End-inspiratory flow method................................................................ 2-112
2.5.2.3 Airway pressure method ...................................................................... 2-112
2.5.2.4 Time limit ............................................................................................ 2-112
2.5.2.5 High circuit pressure limit .................................................................... 2-112
2.5.2.6 High ventilator pressure limit ............................................................... 2-112
2.6 Other hardware operations .................................................................................... 2-114
2.6.1 Gas supply and control ................................................................................... 2-114
2.6.2 Data monitoring ............................................................................................. 2-114
2.6.3 Pressure transducer autozero........................................................................... 2-115
2.6.4 Power monitoring and power fail handling ..................................................... 2-117
2.6.4.1 Loss of power source ........................................................................... 2-117
2.6.4.2 Supply voltage monitoring .................................................................. 2-118
2.7.1 Safety valve open (SVO) state.......................................................................... 2-118
vi Puritan Bennett 800 Series Ventilator System Service Manual
3 Self tests
Contents
2.7.2 Occlusion handling .........................................................................................2-120
2.7.2.1 When the ventilator declares an occlusion............................................2-120
2.7.2.2 Occlusion detection and handling........................................................2-120
3.1 Introduction ................................................................................................................3-1
3.2 How to enter Service Mode .........................................................................................3-1
3.3 Self tests and background checks ................................................................................3-1
3.3.1 POST (Power On Self Test) ..................................................................................3-1
3.3.2 SST (Short Self Test) ............................................................................................3-1
3.3.3 EST (Extended Self Test) .....................................................................................3-2
3.3.4 Background checks..............................................................................................3-2
3.3.5 When self tests are run ........................................................................................3-2
3.4 Power on self test (POST) ............................................................................................3-3
3.4.1 Safety .................................................................................................................3-8
3.4.2 POST characteristics ............................................................................................3-8
3.4.3 POST following power interruptions....................................................................3-9
3.4.4 POST user interface .............................................................................................3-9
3.4.5 Structure of POST..............................................................................................3-10
3.5 SST (short self test)....................................................................................................3-13
3.5.1 When to run SST ...............................................................................................3-13
3.5.2 Hardware requirements.....................................................................................3-14
3.5.3 Running SST......................................................................................................3-15
3.6 EST (extended self test) .............................................................................................3-19
3.6.1 Description of EST .............................................................................................3-19
3.6.2 When to run EST ...............................................................................................3-19
3.6.3 Hardware requirements.....................................................................................3-20
3.6.4 How to run EST .................................................................................................3-20
3.6.5 How to run Single Test EST................................................................................3-28
4 Service mode
4.1 Accessing Service Mode...............................................................................................4-1
4.2 Service Mode functions ............................................................................................... 4-3
4.2.1 SST RESULT: Displaying SST results......................................................................4-5
4.2.2 DIAG LOG: Displaying error and status logs.........................................................4-5
4.2.3 Alarm log: Displaying the alarm history ...............................................................4-7
4.2.4 VENT CONFIG: Displaying software revisions and serial numbers ........................4-7
4.2.5 OPERATION TIME: Displaying ventilator and compressor elapsed hours ..............4-7
4.2.6 TEST SUMMARY: Displaying results from EST and SST .........................................4-7
4.2.7 EST: Extended self test.........................................................................................4-7
4.2.8 DATE/TIME: Adjusting date and time...................................................................4-7
4.2.9 EXIT: Exiting Service Mode ..................................................................................4-8
4.2.10 Other screens ....................................................................................................4-8
4.2.10.1 Service Mode Setup .................................................................................4-9
4.2.10.2 External Test Control: Performing remote ventilator testing .....................4-9
4.2.10.3 Exp Valve Calibration ...............................................................................4-9
4.2.10.4 Vent Inop Test........................................................................................4-12
4.2.10.5 Flow Sensor Calibration..........................................................................4-13
4.2.10.6 Atmospheric Pressure Transducer calibration..........................................4-15
Puritan Bennett 800 Series Ventilator System Service Manual vii
Contents
4.2.10.7 Data key Update.................................................................................... 4-16
4.2.10.8 Serial Loopback Test .............................................................................. 4-16
4.2.10.9 Compact flash test................................................................................. 4-17
4.2.11 Automatically executed Service Mode functions.............................................. 4-17
4.2.11.1 Initialize Flow Sensor.............................................................................. 4-17
4.2.11.2 Cal Info Duplication............................................................................... 4-18
4.2.11.3 Serial number setup............................................................................... 4-18
4.2.12 Oxygen sensor calibration............................................................................... 4-20
5 Performance verification
5.1 Tools, test equipment, and service materials ............................................................... 5-1
5.2 When to run ............................................................................................................... 5-1
5.3 Preliminary ventilator cleaning and inspection ............................................................ 5-4
5.4 Preliminary ventilator setup......................................................................................... 5-4
5.5 Preliminary calibrations and tests ................................................................................ 5-5
5.6 Performance verification guidelines............................................................................. 5-7
5.7 Performance verification tests...................................................................................... 5-7
5.7.1 Electrical safety test ............................................................................................ 5-8
5.7.2 Ground isolation check ....................................................................................... 5-9
5.7.3 Extended self test (EST)....................................................................................... 5-9
5.7.4 Regulator setting verification............................................................................. 5-10
5.7.5 Serial loopback test (10.4-inch GUI only) .......................................................... 5-10
5.7.6 Performance verification using PTS 2000 Performance Test System
and BreathLab 840 VTS software....................................................................... 5-10
5.7.6.1 How to view the test results log ............................................................. 5-11
5.7.7 Manual ventilator check using equipment other than PTS 2000
Performance Test System .................................................................................. 5-14
5.8 Regulator calibration hose repair instructions ............................................................ 5-15
6 Diagnostic codes
6.1 Introduction................................................................................................................ 6-1
6.2 Reference Tables ......................................................................................................... 6-1
6.3 Troubleshooting.......................................................................................................... 6-2
6.4 POST fault handling ................................................................................................... 6-2
6.5 Diagnostic CPU LED arrays.......................................................................................... 6-3
6.6 Diagnostic codes......................................................................................................... 6-4
6.6.1 How to interpret diagnostic codes ...................................................................... 6-4
6.7 Organization of diagnostic codes table ....................................................................... 6-5
6.8 System Diagnostic Log and BDU POST analog devices test ....................................... 6-60
6.9 Diagnostic codes for POST faults............................................................................... 6-62
6.9.1 POST interrupt errors and test failures............................................................... 6-70
6.10 SST and EST test sequences and diagnostic codes ................................................... 6-72
6.11 How to troubleshoot VGA LCD controller PCB faults (UT0002)
(9.4-inch GUI only) ................................................................................................. 6-108
6.12 How to troubleshoot GUI LCD screen messages ................................................... 6-109
6.12.1 Example 1: Missing data key information ...................................................... 6-109
6.12.2 Example 2: No communication between the GUI and BDU........................... 6-111
6.12.3 Example 3: POST or Background check errors ............................................... 6-112
viii Puritan Bennett 800 Series Ventilator System Service Manual
7 Alarm handling
7.1 Alarm classifications.....................................................................................................7-1
7.2 Responding to alarms..................................................................................................7-2
8 Service and repair
8.1 How to use this chapter...............................................................................................8-1
8.2 General repair safety....................................................................................................8-1
8.3 General repair guidelines.............................................................................................8-2
8.4 Repair-related cleaning................................................................................................8-2
8.5 Electrical cables and pneumatic tubing........................................................................8-3
8.6 Adhesive use................................................................................................................8-3
8.7 Leak testing.................................................................................................................8-3
8.8 Electrostatic discharge control .....................................................................................8-4
8.8.1 ESD procedures and precautions .........................................................................8-4
8.9 Replacement part ordering..........................................................................................8-4
8.10 Testing, calibration, and other post-service procedures..............................................8-4
8.11 Patient system and accessories...................................................................................8-6
8.12 Graphic user interface (GUI) ......................................................................................8-6
8.13 Repairing the 10.4-inch GUI ......................................................................................8-8
8.13.1 Removing or installing the 10.4-inch GUI when mounted on RTA cart...............8-8
8.13.2 Removing or installing the 10.4-inch GUI when mounted on Puritan Bennett
8.13.3 Removing the 10.4-inch GUI cable assembly ...................................................8-11
8.13.4 Replacing the 10.4-inch GUI cable assembly.................................................... 8-12
8.13.5 Removing the 10.4-inch GUI rear housing....................................................... 8-12
8.13.6 Replacing the 10.4-inch GUI rear housing .......................................................8-13
8.13.7 Removing the 10.4-inch CPU EMI shield .........................................................8-13
8.13.8 Removing the 10.4-inch GUI backlight inverter PCBs.......................................8-14
8.13.9 Removing the 10.4-inch GUI CPU PCB ............................................................8-15
8.13.10 Replacing the 10.4-inch Non-TE GUI CPU PCB with the TE GUI CPU PCB......8-16
8.13.11 Replacing the 10.4-inch TE GUI CPU PCB with a new
8.13.12 Replacing the compact flash component (TE GUI CPU PCB only) ..................8-19
8.13.13 Replacing the real-time clock.........................................................................8-20
8.13.14 10.4-inch GUI support bracket ......................................................................8-20
8.13.14.1 Removing the 10.4-inch GUI support bracket.........................................8-21
8.13.15 10.4-inch LCD panels ...................................................................................8-21
8.13.15.1 Removing the 10.4-inch LCD panels ......................................................8-22
8.13.16 10.4-inch touchframe PCB (MKG Touch)....................................................... 8-22
8.13.16.1 Removing the 10.4-inch touchframe PCB...............................................8-22
8.13.17 Replacing the 10.4-inch touchframe PCB.......................................................8-23
8.13.18 10.4-inch GUI LED PCB .................................................................................8-23
8.13.18.1 Removing the 10.4-inch GUI LED PCB....................................................8-23
8.13.18.2 Replacing the 10.4-inch GUI LED PCB ....................................................8-23
8.13.19 10.4-inch GUI alarm assembly.......................................................................8-23
8.13.19.1 Removing the 10.4-inch GUI alarm assembly .........................................8-24
8.13.19.2 Replacing the 10.4-inch GUI alarm assembly..........................................8-24
8.13.20 10.4-inch GUI keyboard assembly .................................................................8-24
Contents
800 Series Ventilator Compressor Mount Cart or Puritan Bennett
800 Series Ventilator Pole Cart...........................................................................8-9
10.4-inch TE GUI CPU PCB................................................................................8-19
Puritan Bennett 800 Series Ventilator System Service Manual ix
Contents
8.13.20.1 Replacing the 10.4-inch GUI keyboard assembly.................................... 8-25
8.13.21 10.4-inch GUI front housing ......................................................................... 8-26
8.13.21.1 Replacing the 10.4-inch front housing ................................................... 8-26
8.13.22 10.4-inch rotor housing ................................................................................ 8-26
8.13.22.1 Replacing the 10.4-inch rotor housing................................................... 8-26
8.14 Repairing the 9.4-inch GUI...................................................................................... 8-28
8.14.1 Removing the 9.4-inch GUI touch screen bezel............................................... 8-28
8.14.2 9.4-inch GUI window...................................................................................... 8-29
8.14.3 Installing the 9.4-inch bezel ............................................................................ 8-30
8.14.4 The 9.4-inch keyboard assembly ..................................................................... 8-30
8.14.4.1 Removing 9.4-inch keyboard assembly .................................................. 8-30
8.14.4.2 Installing the 9.4-inch keyboard assembly.............................................. 8-32
8.14.5 Removing or installing the 9.4-inch GUI.......................................................... 8-32
8.14.6 9.4-inch GUI rear housing............................................................................... 8-33
8.14.6.1 Removing 9.4-inch GUI rear housing ..................................................... 8-33
8.14.6.2 Installing 9.4-inch GUI rear housing....................................................... 8-34
8.14.7 9.4-inch GUI alarm assembly .......................................................................... 8-35
8.14.7.1 Removing 9.4-inch GUI alarm assembly................................................. 8-35
8.14.7.2 Installing 9.4-inch GUI alarm assembly .................................................. 8-36
8.14.8 9.4-inch GUI backlight inverter PCB and GUI LED PCB .................................... 8-36
8.14.8.1 Removing 9.4-inch GUI backlight inverter PCB ...................................... 8-36
8.14.8.2 Installing 9.4-inch GUI backlight inverter PCB........................................ 8-37
8.14.8.3 Removing 9.4-inch GUI LED PCB ........................................................... 8-37
8.14.8.4 Installing 9.4-inch GUI LED PCB............................................................. 8-37
8.14.9 GUI Electromagnetic Interference (EMI) shield ................................................ 8-38
8.14.9.1 Removing the GUI EMI shield ................................................................ 8-38
8.14.9.2 Installing the 9.4-inch GUI EMI shield .................................................... 8-38
8.14.10 9.4-inch video controller and VGA LCD controller PCBs ................................ 8-39
8.14.10.1 Removing 9.4-inch VGA LCD controller PCBs (older CPU PCB) .............. 8-39
8.14.10.2 Installing 9.4-inch VGA LCD controller PCBs (older CPU PCB)................ 8-39
8.14.11 9.4-inch GUI CPU PCB .................................................................................. 8-40
8.14.11.1 Removing the 9.4-inch GUI CPU PCB .................................................... 8-40
8.14.11.2 Installing the 9.4-inch GUI CPU PCB ...................................................... 8-40
8.14.12 Replacing the compact flash component (TE GUI CPU PCB only).................. 8-42
8.14.13 Replacing the real-time clock ........................................................................ 8-42
8.14.14 9.4-inch touchframe PCB (Carroll Touch)...................................................... 8-43
8.14.14.1 Removing the 9.4-inch touchframe PCB ................................................ 8-43
8.14.14.2 Reinstalling the 9.4-inch touchframe PCB .............................................. 8-44
8.14.15 9.4-inch backlight panels and LCD panels .................................................... 8-46
8.14.15.1 Removing a 9.4-inch backlight panel and LCD panel ............................. 8-46
8.14.15.2 Reinstalling a backlight panel and LCD panel......................................... 8-46
8.14.16 9.4-inch GUI cooling vent filters.................................................................... 8-48
8.14.17 9.4-inch rotor housing .................................................................................. 8-49
8.14.17.1 Removing the 9.4-inch rotor housing .................................................... 8-49
8.14.17.2 Installing the 9.4-inch rotor housing ...................................................... 8-49
8.15 Breath delivery unit (BDU) ...................................................................................... 8-50
8.15.1 Removing BDU from RTA cart ......................................................................... 8-53
8.15.2 Removing BDU from Puritan Bennett 800 Series Ventilator
Compressor Mount Cart or Puritan Bennett 800 Series Ventilator Pole Cart..... 8-53
x Puritan Bennett 800 Series Ventilator System Service Manual
Contents
8.15.3 BDU power cord and retainer..........................................................................8-54
8.15.4 Installing BDU onto RTA cart ...........................................................................8-55
8.15.5 Installing BDU onto Puritan Bennett 800 Series Ventilator
Compressor Mount Cart or Puritan Bennett 800 Series Ventilator Pole Cart.......8-55
8.15.6 Analog interface (AI) PCB and breath delivery (BD) CPU PCB...........................8-56
8.15.6.1 Removing AI PCB or BD CPU PCB ..........................................................8-57
8.15.6.2 Replacing the real-time clock .................................................................8-58
8.15.6.3 Installing AI PCB or BD CPU PCB ............................................................8-59
8.15.7 Power supply assembly....................................................................................8-59
8.15.7.1 Removing power supply assembly..........................................................8-59
8.15.7.2 Installing power supply assembly ...........................................................8-60
8.15.8 Power switch (S1)............................................................................................ 8-61
8.15.8.1 Removing power switch (S1)..................................................................8-61
8.15.8.2 Installing power switch (S1) ...................................................................8-62
8.15.9 Humidifier receptacle (100 – 120 V models only) ............................................8-62
8.15.9.1 Removing humidifier receptacle .............................................................8-62
8.15.9.2 Installing humidifier receptacle...............................................................8-63
8.15.9.3 AC panel................................................................................................8-64
8.15.10 Inspiratory module ........................................................................................8-65
8.15.10.1 Inspiratory module modifications ...........................................................8-65
8.15.10.2 Additional noise suppression (ferrite cores)............................................. 8-65
8.15.10.3 Inspiratory module o-rings .....................................................................8-66
8.15.10.4 Air inlet filter (F2) ................................................................................... 8-66
8.15.10.5 Fascia panel ...........................................................................................8-67
8.15.10.6 Oxygen and air pressure switches (PS1 and PS2)....................................8-69
8.15.10.7 PSOL cartridge .......................................................................................8-70
8.15.10.8 Removing inspiratory module ................................................................8-71
8.15.10.9 Leak testing inspiratory module..............................................................8-71
8.15.10.10Installing inspiratory module .................................................................8-72
8.15.10.11Oxygen sensor (OS) .............................................................................. 8-72
8.15.10.12Inspiratory check valve (CV3) ................................................................8-75
8.15.10.13Right-side plate .....................................................................................8-75
8.15.10.14Inspiratory electronics PCB ....................................................................8-77
8.15.10.15Left-side plate........................................................................................8-77
8.15.10.16PSOL manifold ......................................................................................8-78
8.15.10.17Oxygen and air flow sensors (Q1 and Q2).............................................8-80
8.15.10.18Safety valve ...........................................................................................8-81
8.15.10.19Check valve assembly, regulator assembly, and flow sensor manifold .... 8-83
8.15.10.20Oxygen and air regulators (REG1 and REG2) .........................................8-85
8.15.10.21Inspiratory pressure transducer autozero solenoid (SOL1)......................8-86
8.15.10.22Inspiratory floor assembly......................................................................8-86
8.15.11 Exhalation module.........................................................................................8-87
8.15.11.1 Exhalation collector vial (ECV) and expiratory filter (F9)..........................8-87
8.15.11.2 Removing exhalation module cover .......................................................8-87
8.15.11.3 Removing exhalation module.................................................................8-90
8.15.11.4 Installing exhalation module ..................................................................8-90
8.15.11.5 Exhalation valve (EV) ..............................................................................8-91
8.15.11.6 Exhalation flow sensor (Q3) ...................................................................8-94
8.15.11.7 Exhalation transducer PCB .....................................................................8-96
Puritan Bennett 800 Series Ventilator System Service Manual xi
Contents
8.15.11.8 Expiratory pressure transducer autozero solenoid (SOL2)....................... 8-97
8.15.11.9 Exhalation heater (EXH HTR) and check valve (CV5) .............................. 8-98
8.15.12 BDU housing................................................................................................. 8-99
8.15.12.1 Removing BDU housing......................................................................... 8-99
8.15.12.2 Installing BDU housing ........................................................................ 8-101
8.15.12.3 Motherboard PCB................................................................................ 8-101
8.15.12.4 BDU alarm assembly ............................................................................ 8-102
8.15.13 Power indicator........................................................................................... 8-103
8.15.13.1 Removing power indicator................................................................... 8-103
8.15.13.2 Installing power indicator .................................................................... 8-104
8.15.13.3 Alarm blindmate cable......................................................................... 8-104
8.15.13.4 Inspiratory blindmate cable ................................................................. 8-105
8.15.13.5 DC power supply blindmate cable ....................................................... 8-106
8.15.13.6 AC power supply blindmate harness .................................................... 8-107
8.15.14 Release handle ............................................................................................ 8-109
8.15.14.1 Removing release handle ..................................................................... 8-109
8.15.14.2 Installing release handle....................................................................... 8-109
8.16 806 compressor unit............................................................................................. 8-109
8.17 Servicing the 806 compressor ............................................................................... 8-110
8.17.1 Compressor inlet filter................................................................................... 8-110
8.17.2 Removing and installing the compressor inlet filter ....................................... 8-110
8.17.3 Removing compressor from cart ................................................................... 8-110
8.17.3.1 Disconnecting compressor from BDU .................................................. 8-110
8.17.3.2 Removing compressor from cart .......................................................... 8-111
8.17.4 Removing top cover...................................................................................... 8-111
8.17.5 Installing top cover ....................................................................................... 8-113
8.17.6 Cooling fans.................................................................................................. 8-113
8.17.6.1 Removing a cooling fan ....................................................................... 8-113
8.17.6.2 Installing a fan ..................................................................................... 8-114
8.17.7 Removing the back panel.............................................................................. 8-114
8.17.8 Reinstalling the back panel............................................................................ 8-114
8.17.9 Replacing an accumulator fitting and o-ring.................................................. 8-115
8.17.10 Pneumatic hoses ......................................................................................... 8-115
8.17.11 Plenum assembly ........................................................................................ 8-116
8.17.11.1 Removing the plenum assembly .......................................................... 8-117
8.17.12 Heat exchanger (HE)................................................................................... 8-118
8.17.12.1 Replacing the heat exchanger.............................................................. 8-118
8.17.13 Removing and replacing the AC power cord ............................................... 8-118
8.17.14 Removing and replacing the data cable ...................................................... 8-118
8.17.15 Compressor PCB ......................................................................................... 8-119
8.17.15.1 Removing and replacing the compressor PCB ...................................... 8-119
8.17.16 Air dryer (dryer) and solenoid valve assembly.............................................. 8-119
8.17.16.1 Removing and reinstalling the air dryer, solenoid valve assembly,
and replacing filters ............................................................................. 8-120
8.17.17 Compressor assembly ................................................................................. 8-121
8.17.17.1 Removing the compressor assembly .................................................... 8-121
8.17.17.2 Replacing the coalescing filter element ................................................ 8-122
8.17.18 Replacing the compressor panels ................................................................ 8-123
8.17.19 Reinstalling the plenum assembly................................................................ 8-124
xii Puritan Bennett 800 Series Ventilator System Service Manual
Contents
8.17.20 Reconnecting electrical cables ....................................................................8-124
8.17.21 Replacing the Tinnerman clips.....................................................................8-124
8.17.22 Reinstalling the back panel/accumulator assembly.......................................8-124
8.17.23 Replacing the main inlet filter and reinstalling the top .................................8-125
8.17.24 Reinstalling the compressor module ............................................................8-125
8.17.25 Running performance verification test .........................................................8-125
8.18 Backup power source (BPS) ...................................................................................8-125
8.18.1 Removing the 802 or 803 BPS.......................................................................8-126
8.18.2 Installing 802 BPS..........................................................................................8-127
8.18.3 Installing 803 BPS..........................................................................................8-127
8.18.4 Battery pack ..................................................................................................8-132
8.18.4.1 Removing 802 BPS battery pack...........................................................8-132
8.18.4.2 Installing 802 BPS battery pack ............................................................8-133
8.18.4.3 Removing 803 BPS battery pack...........................................................8-133
8.18.4.4 Installing 803 BPS battery pack ............................................................8-133
8.18.5 BPS PCB ........................................................................................................8-135
8.18.5.1 Removing 802 BPS PCB........................................................................8-135
8.18.5.2 Installing 802 BPS PCB .........................................................................8-135
8.18.5.3 Removing 803 BPS PCB........................................................................8-135
8.18.5.4 Installing 803 BPS PCB .........................................................................8-136
8.19 Cart.......................................................................................................................8-136
8.19.1 Removing and replacing the battery in the Puritan Bennett
800 Series Ventilator Compressor Mount Cart BPS ........................................8-138
8.19.1.1 Removing the four-hour battery...........................................................8-139
8.19.1.2 Replacing the four-hour battery ...........................................................8-140
8.19.1.3 Removing the one-hour battery ...........................................................8-141
8.19.1.4 Replacing the one-hour battery............................................................8-143
8.19.2 Removing and replacing the battery in the Puritan Bennett
800 Series Ventilator Pole Cart.......................................................................8-145
8.19.2.1 Four-hour battery removal ...................................................................8-146
8.19.2.2 Four-hour battery replacement.............................................................8-146
8.19.3 Charging circuit PCB removal and replacement for Puritan Bennett
800 Series Ventilator Pole Cart.......................................................................8-149
8.19.3.1 Charging circuit PCB removal...............................................................8-149
8.19.3.2 Charging circuit PCB replacement........................................................8-151
8.19.4 Cart Casters...................................................................................................8-151
8.19.4.1 Removing casters from RTA cart...........................................................8-151
8.19.4.2 Installing casters on RTA cart................................................................8-151
8.19.5 Removing casters from Puritan Bennett 800 Series Ventilator
Compressor Mount Cart or Puritan Bennett 800 Series Ventilator Pole Cart...8-151
8.19.6 Installing casters on Puritan Bennett 800 Series Ventilator
Compressor Mount Cart or Puritan Bennett 800 Series Ventilator Pole Cart.....8-152
8.19.7 Removing/installing GUI mount on all carts...................................................8-152
8.19.8 Removing/installing GUI mount ...................................................................8-152
8.19.9 Removing/installing flex arm inserts on RTA cart............................................8-153
8.19.10 Removing/installing flex arm inserts on Puritan Bennett 800 Series Ventilator
Compressor Mount Cart and Puritan Bennett 800 Series Ventilator
Pole Cart .....................................................................................................8-153
Puritan Bennett 800 Series Ventilator System Service Manual xiii
Contents
9 Parts list
9.1 How to use this parts list ............................................................................................. 9-1
9.2 Puritan Bennett 840 Ventilator System patient system and accessories ....................... 9-3
9.2.1 Puritan Bennett 840 Ventilator System NeoMode patient system
and accessories ................................................................................................... 9-6
9.3 Flex arm assembly, oxygen and air hose assemblies, power cords .............................. 9-8
9.3.1 Flex arm assembly .............................................................................................. 9-8
9.3.2 Oxygen hose assemblies .................................................................................. 9-10
9.3.3 Air hose assemblies .......................................................................................... 9-12
9.3.4 Power cords ..................................................................................................... 9-14
9.4 Ventilator major assemblies ...................................................................................... 9-16
9.4.1 Major ventilator assemblies (Puritan Bennett 800 Series Ventilator
Compressor Mount Cart) .................................................................................. 9-18
9.4.2 Major ventilator assemblies (shown on Puritan Bennett 800 Series Ventilator
Pole Cart).......................................................................................................... 9-20
9.4.3 10.4-inch GUI (graphic user interface) assembly with Trending-enabled
(TE) GUI CPU PCB ................................................................................................. 9-30
9.4.4 10.4-inch GUI (graphic user interface) assembly ............................................... 9-34
9.4.5 10.4-inch GUI (graphic user interface) handle .................................................. 9-36
9.4.6 10.4-inch graphic user interface (GUI) rotor assembly ...................................... 9-38
9.4.7 10.4-inch GUI keyboards and speaker assembly ............................................... 9-40
9.4.8 9.4-inch graphic user interface (GUI) ............................................................... 9-43
9.4.8.1 9.4-inch GUI front housing assembly ..................................................... 9-46
9.4.8.2 9.4-inch GUI rear housing assembly....................................................... 9-48
9.4.9 Breath delivery unit (BDU) ............................................................................... 9-50
9.4.9.1 Exhalation module................................................................................. 9-54
9.4.9.2 Inspiratory module ................................................................................ 9-58
9.4.9.3 BDU cover ............................................................................................. 9-68
9.4.9.4 BDU chassis assembly ............................................................................ 9-70
9.4.9.5 BDU chassis kit ...................................................................................... 9-72
9.4.10 806 compressor unit ...................................................................................... 9-74
9.4.10.1 806 compressor base assembly.............................................................. 9-76
9.4.10.2 806 compressor unit enclosure assembly ............................................... 9-78
9.4.10.3 806 compressor unit plenum assembly.................................................. 9-80
9.4.11 Backup power source (802 BPS) ..................................................................... 9-82
9.4.12 803 Backup Power Source .............................................................................. 9-84
9.4.13 840 RTA (ready-to-assemble) Cart assembly ................................................... 9-86
9.4.14 Puritan Bennett 800 Series Ventilator Compressor Mount Cart assembly......... 9-88
9.4.15 Puritan Bennett 800 Series Ventilator Pole Cart assembly ................................ 9-91
xiv Puritan Bennett 800 Series Ventilator System Service Manual
SECTION
FIGURES
Figure 1-1. Remote alarm (nurse’s call) port pinout (view from back of GUI). . . . . . . . . . . . . . . . . . . . 1-7
Figure 1-2. Puritan Bennett 840 Ventilator System RS-232 serial port pinout . . . . . . . . . . . . . . . . . . . . 1-8
Figure 1-3. Monochrome GUI front view (showing all keys) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39
Figure 1-4. 10.4-inch GUI rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47
Figure 1-5. BDU front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48
Figure 1-6. BDU I/O panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51
Figure 1-7. BDU right-side panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53
Figure 1-8. BDU rear view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
Figure 1-9. GUI rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
Figure 1-10. 802 BPS controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
Figure 1-11. 803 BPS controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
Figure 1-12. Puritan Bennett 800 Series Ventilator Compressor Mount Cart charging status and
battery indicator labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-58
Figure 1-13. Puritan Bennett 800 Series Ventilator Pole Cart charging status and
battery indicator labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-59
Figure 2-1. L-R Puritan Bennett 840 Ventilator shown on RTA cart, Puritan Bennett
800 Series Ventilator Compressor Mount Cart, and Puritan Bennett
800 Series Ventilator Pole Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Figure 2-2. BDU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-3. 10.4-inch GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-4. Compressor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 2-5. 802 BPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Figure 2-6. 803 BPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Figure 2-7. RTA cart, Puritan Bennett 800 Series Ventilator Compressor Mount Cart,
and Puritan Bennett 800 Series Ventilator Pole Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Figure 2-8. Patient system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Figure 2-9. NeoMode patient system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Figure 2-10. Puritan Bennett 840 Ventilator System block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Figure 2-11. Pneumatic system block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Figure 2-12. Pneumatic system diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Figure 2-13. Inspiratory module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Figure 2-14. Inspiratory module in ventilator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Figure 2-15. Inspiratory module gas flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Figure 2-16. Gas supply conditioning subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Figure 2-17. Gas supply conditioning subsystem gas flow diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Figure 2-18. Gas supply conditioning subsystem components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Figure 2-19. Flow control subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Figure 2-20. Flow control subsystem gas flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Figure 2-21. Hot film . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Figure 2-22. Flow control subsystem components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Figure 2-23. Safety valve and inspiration monitoring subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Figure 2-24. Inspiration monitoring subsystem gas flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Figure 2-25. Safety valve and inspiration monitoring subsystem components . . . . . . . . . . . . . . . . . . . 2-29
Puritan Bennett 800 Series Ventilator System Service Manual
xv
Figures
Figure 2-26. Safety valve open gas flow diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Figure 2-27. Air flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
Figure 2-28. Oxygen flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Figure 2-29. Patient system (minus exhalation collector vial and expiratory filter) . . . . . . . . . . . . . . . . 2-36
Figure 2-30. Patient system flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
Figure 2-31. Exhalation module (removed from BDU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Figure 2-32. Exhalation module flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
Figure 2-33. Exhalation module components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
Figure 2-34. 806 compressor on Puritan Bennett 800 Series Ventilator Compressor Mount Cart . . . . . 2-43
Figure 2-35. 806 Compressor Pneumatic diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Figure 2-36. 806 components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
Figure 2-37. Heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
Figure 2-38. 806 water trap assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
Figure 2-39. Air dryer assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
Figure 2-40. 806 back panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
Figure 2-41. 806 cooling fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
Figure 2-42. Electrical system block diagram (10.4-inch GUI—Trending-enabled CPU PCB shown) . . 2-55
Figure 2-43. Electrical system block diagram (10.4-inch GUI—Non-Trending-enabled
CPU PCB shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
Figure 2-44. Electrical system block diagram (9.4-inch GUI—Trending-enabled CPU PCB shown) . . . 2-59
Figure 2-45. Electrical system block diagram (older 9.4-inch GUI shown) . . . . . . . . . . . . . . . . . . . . . . 2-61
Figure 2-46. AC panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63
Figure 2-47. Puritan Bennett 840 Ventilator System interconnect diagram – AC panel . . . . . . . . . . . . 2-64
Figure 2-48. Power switch (S1) and indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65
Figure 2-49. Power supply assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-66
Figure 2-50. Puritan Bennett 840 Ventilator System interconnect diagram – Power distribution . . . . . 2-67
Figure 2-51. 802 BPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-68
Figure 2-52. 803 BPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-69
Figure 2-53. 802 BPS battery pack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-69
Figure 2-54. BPS PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70
Figure 2-55. Card cage with all PCBs installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-71
Figure 2-56. Puritan Bennett 840 Ventilator System interconnect diagram – Card cage . . . . . . . . . . . 2-72
Figure 2-57. Motherboard PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-73
Figure 2-58. Motherboard PCB in place. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-74
Figure 2-59. Motherboard PCB block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-75
Figure 2-60. BD CPU PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-77
Figure 2-61. AI PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-80
Figure 2-62. Data key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-82
Figure 2-63. 10.4” Non-TE GUI CPU PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83
Figure 2-64. 10.4” TE GUI CPU PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83
Figure 2-65. 9.4” Non-TE GUI CPU PCB and backlight inverter PCB in place . . . . . . . . . . . . . . . . . . . . 2-84
Figure 2-66. 9.4” GUI TE GUI CPU PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-84
Figure 2-67. Puritan Bennett 840 Ventilator System interconnect diagram – GUI 10.4-inch
LCD panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-86
Figure 2-68. Puritan Bennett 840 Ventilator System interconnect diagram – GUI 9.4-inch
LCD panels (Non-TE GUI CPU PCB P/N 4-073200-SP shown) . . . . . . . . . . . . . . . . . . . . 2-88
Figure 2-69. Puritan Bennett 840 Ventilator System interconnect diagram – GUI 9.4-inch
LCD panels (TE GUI CPU PCB shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-89
Figure 2-70. Touch Frame PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-90
xvi Puritan Bennett 800 Series Ventilator System Service Manual
Figures
Figure 2-71. Keyboard assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-92
Figure 2-72. GUI LED PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-93
Figure 2-73. 10.4” GUI LCD panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-94
Figure 2-74. 9.4-inch LCD panels and backlight tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-95
Figure 2-75. GUI alarm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-96
Figure 2-76. BDU LED PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-97
Figure 2-77. Inspiratory electronics PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-97
Figure 2-78. Puritan Bennett 840 Ventilator System interconnect diagram – Inspiratory module . . . . 2-98
Figure 2-79. Exhalation transducer PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-99
Figure 2-80. Puritan Bennett 840 Ventilator System interconnect diagram – Exhalation module . . . 2-100
Figure 2-81. BD alarm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-101
Figure 2-82. 806 compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-102
Figure 2-83. 806 Compressor fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103
Figure 2-84. 806 compressor PCBA installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103
Figure 2-85. 806 compressor PCB block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-105
Figure 2-86. Puritan Bennett 840 Ventilator System interconnect diagram – Compressor unit . . . . . 2-106
Figure 2-87. Compressor operational sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-108
Figure 2-88. Compressor unit start-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-109
Figure 2-89. Inspiration gas flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-110
Figure 2-90. Exhalation gas flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-113
Figure 2-91. Pressure transducer autozero mode gas flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . 2-116
Figure 2-92. Power loss sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-117
Figure 2-93. Safety valve open diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-119
Figure 2-94. Pressure release, patient circuit occluded diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-121
Figure 3-1. Patient circuit setup for SST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Figure 3-2. EST setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Figure 3-3. EST screens during testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Figure 4-1. Service Mode screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Figure 4-2. Service Mode functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Figure 4-3. System diagnostic log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Figure 4-4. System Information Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Figure 4-5. EST/SST Diagnostic Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Figure 4-6. 100% O
Figure 5-1. Puritan Bennett 840 ventilator side view — PTS 2000 port . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Figure 5-2. How to access the test logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Figure 5-3. Report selection menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Figure 5-4. Puritan Bennett 840 Ventilator System PVT setup with PTS 2000 . . . . . . . . . . . . . . . . . . 5-12
Figure 5-5. Puritan Bennett 840 Ventilator System PVT setup with PTS 2000 and laptop computer. . 5-13
Figure 5-6. Regulator calibration hose repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Figure 6-1. Location of BD LED array. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Figure 7-1. Alarm message format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Figure 7-2. Alarm log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Figure 8-1. GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Figure 8-2. 10.4-inch GUI front and back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Figure 8-3. 10.4-inch GUI mounting platform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Figure 8-4. P-clip and GUI cable installed on Puritan Bennett 800 Series Ventilator Pole Cart . . . . . . 8-10
Figure 8-5. Removing and replacing 10.4-inch GUI cable assembly. . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Figure 8-6. Removing 10.4-inch GUI rear housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
Figure 8-7. 10.4-inch GUI rear warning label and serial number tag . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
/CAL In Progress indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
2
Puritan Bennett 800 Series Ventilator System Service Manual xvii
Figures
Figure 8-8. Removing the 10.4-inch EMI shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
Figure 8-9. Removal of a 10.4-inch backlight inverter PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
Figure 8-10. RS-232 shield and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
Figure 8-11. GUI CPU PCB touch panel jumpers configured for “MKG TOUCH” . . . . . . . . . . . . . . . . . 8-16
Figure 8-12. Socket savers and spacers installed onto RS-232 connectors . . . . . . . . . . . . . . . . . . . . . . 8-17
Figure 8-13. RS-232 shield with gaskets installed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Figure 8-14. Thermal pad adhered to CPU heatsink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
Figure 8-15. How to replace the compact flash component. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
Figure 8-16. GUI CPU PCB real-time clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Figure 8-17. 10.4-inch LCD panels and LCD shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Figure 8-18. 10.4-inch GUI touchframe PCB and GUI LED PCB locations . . . . . . . . . . . . . . . . . . . . . . . 8-22
Figure 8-19. Removal of the 10.4" GUI LED PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Figure 8-20. Removing the 10.4-inch GUI alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
Figure 8-21. How to attach the grounding strap to the EMI shield. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
Figure 8-22. 10.4-inch GUI rotor housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27
Figure 8-23. 9.4-inch touch screen bezel and window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
Figure 8-24. 9.4-inch GUI tilt positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30
Figure 8-25. Replacing the 9.4-inch keyboard assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31
Figure 8-26. 9.4-inch GUI mounting platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33
Figure 8-27. Removing 9.4-inch GUI handle assembly and interface cable . . . . . . . . . . . . . . . . . . . . . 8-33
Figure 8-28. Replacing 9.4-inch GUI rear housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34
Figure 8-29. 9.4" GUI interior (TE GUI CPU PCB shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
Figure 8-30. Replacing the 9.4-inch GUI alarm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36
Figure 8-31. Replacing 9.4-inch backlight inverter and GUI LED PCBs . . . . . . . . . . . . . . . . . . . . . . . . . 8-37
Figure 8-32. Removing 9.4-inch GUI EMI shield. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
Figure 8-33. Removing 9.4-inch VGA LCD controller PCBs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-39
Figure 8-34. GUI CPU PCB touch panel jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Figure 8-35. Thermal pad adhered to CPU heatsink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-41
Figure 8-36. How to remove the compact flash component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
Figure 8-37. GUI CPU PCB real-time clock (TE GUI CPU PCB shown) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-43
Figure 8-38. Replacing the 9.4-inch touchframe PCB and LCD panel assembly . . . . . . . . . . . . . . . . . . 8-44
Figure 8-39. Routing the backlight extender cable assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45
Figure 8-40. LCD panel and backlight panel assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47
Figure 8-41. Replacing the 9.4-inch GUI cooling vent filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
Figure 8-42. 9.4-inch rotor housing assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
Figure 8-43. BDU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
Figure 8-44. BDU connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-53
Figure 8-45. Sure-Lock™ retainer and power cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-54
Figure 8-46. BDU release handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-55
Figure 8-47. BD CPU PCB and AI PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-56
Figure 8-48. BD card cage and PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
Figure 8-49. BDU I/O panel connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
Figure 8-50. BD CPU PCB real-time clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
Figure 8-51. Replacing power supply assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-60
Figure 8-52. Replacing power switch (S1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-61
Figure 8-53. Power switch actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-62
Figure 8-54. Replacing humidifier receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-63
Figure 8-55. AC panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-64
Figure 8-56. Adding ferrites to air and oxygen transducer harnesses . . . . . . . . . . . . . . . . . . . . . . . . . . 8-66
xviii Puritan Bennett 800 Series Ventilator System Service Manual
Figures
Figure 8-57. Replacing F2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
Figure 8-58. Removing inspiratory module fascia panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
Figure 8-59. Oxygen filter assembly and pressure switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-68
Figure 8-60. Pressure switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-69
Figure 8-61. Replacing PSOL cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-70
Figure 8-62. Removing inspiratory module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-71
Figure 8-63. Opening oxygen sensor access port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-72
Figure 8-64. Detail of oxygen sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-73
Figure 8-65. Replacing oxygen sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-74
Figure 8-66. Inspiratory check valve (CV3) assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-75
Figure 8-67. Removing inspiratory module right-side plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-76
Figure 8-68. Replacing inspiratory module left-side plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-78
Figure 8-69. PSOL manifold ready for removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-79
Figure 8-70. Replacing oxygen and air flow sensors (Q1 and Q2) and safety valve . . . . . . . . . . . . . . . 8-80
Figure 8-71. Oxygen and air flow sensors (Q1 and Q2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-81
Figure 8-72. Safety valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-82
Figure 8-73. Disassembling flow sensor manifold/regulator assembly/check valve assembly . . . . . . . . 8-84
Figure 8-74. Removing REG1 and REG2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-85
Figure 8-75. Removing exhalation module cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-88
Figure 8-76. Exhalation module disassembled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-89
Figure 8-77. Replacing exhalation module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-90
Figure 8-78. Exhalation sample port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-91
Figure 8-79. Replacing exhalation module components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-92
Figure 8-80. Exhalation flow sensor (Q3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-95
Figure 8-81. Exhalation flow sensor with EMI shield installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-96
Figure 8-82. Replacing exhalation transducer PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-97
Figure 8-83. Replacing exhalation heater (EXH HTR) and check valve (CV5) . . . . . . . . . . . . . . . . . . . . 8-98
Figure 8-84. Removing BDU housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-100
Figure 8-85. Removing motherboard PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-102
Figure 8-86. BDU alarm and motherboard PCB cable connections . . . . . . . . . . . . . . . . . . . . . . . . . . 8-103
Figure 8-87. Replacing power indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-104
Figure 8-88. Cable connections to AC panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-105
Figure 8-89. Replacing inspiratory blindmate cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-106
Figure 8-90. Replacing DC power supply blindmate cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-107
Figure 8-91. Replacing AC power supply blindmate harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-108
Figure 8-92. 806 compressor mounted on cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-110
Figure 8-93. Top cover removed from compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-112
Figure 8-94. Fans installed in compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-113
Figure 8-95. Removing the back panel of the compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-114
Figure 8-96. Disconnecting filter outlet port from main supply hose . . . . . . . . . . . . . . . . . . . . . . . . . 8-116
Figure 8-97. Disconnecting heat exchanger inlet connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-116
Figure 8-98. 806 printed circuit board (PCB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-117
Figure 8-99. Air dryer/solenoid valve assemblies installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-120
Figure 8-100. Air dryer and solenoid valve assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-121
Figure 8-101. 806 compressor motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
Figure 8-102. Water trap assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-122
Figure 8-103. 802 BPS and RTA cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-126
Figure 8-104. Connecting BPS to BDU on RTA cart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-127
Figure 8-105. Removing existing brackets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-128
Puritan Bennett 800 Series Ventilator System Service Manual xix
Figures
Figure 8-106. Remove screws from 803 BPS bracket backstop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-129
Figure 8-107. Slide bracket off 803 BPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-129
Figure 8-108. Backstop position for system without a compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-129
Figure 8-109. Backstop position for system with a compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-130
Figure 8-110. View of underside of cart for bracket placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-130
Figure 8-111. Position of mounting bracket on cart without compressor . . . . . . . . . . . . . . . . . . . . . . . 8-131
Figure 8-112. Position of mounting bracket on cart with compressor . . . . . . . . . . . . . . . . . . . . . . . . . 8-131
Figure 8-113. Replacing battery pack and BPS PCB (for use on RTA cart) . . . . . . . . . . . . . . . . . . . . . . 8-132
Figure 8-114. Replacing 803 Battery Pack and PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-134
Figure 8-115. Remove four countersunk screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-136
Figure 8-116. BPS assembly in Puritan Bennett 800 Series Ventilator Compressor Mount Cart . . . . . . . 8-137
Figure 8-117. Connecting BPS to BDU on Puritan Bennett 800 Series Ventilator
Compressor Mount Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-138
Figure 8-118. Removing BPS bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-139
Figure 8-119. Remove eleven screws from BPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-139
Figure 8-120. Four-hour battery cable routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-140
Figure 8-121. Battery charging status and indicator labels (Puritan Bennett 800 Series
Ventilator Compressor Mount Cart) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-141
Figure 8-122. Location of four top cover screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-142
Figure 8-123. One-hour battery orientation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-143
Figure 8-124. Serial number label location Puritan Bennett 800 Series Ventilator
Compressor Mount Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-144
Figure 8-125. BPS PCB attached to plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-144
Figure 8-126. BPS PCB connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-145
Figure 8-127. Securing Phillips screws on Puritan Bennett 800 Series Ventilator Pole Cart
battery carrier (four-hour battery shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-146
Figure 8-128. Battery charging status and indicator labels (Puritan Bennett 800 Series Ventilator
Pole Cart) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-147
Figure 8-129. Orientation of one-hour battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-148
Figure 8-130. Serial number label location Puritan Bennett 800 Series Ventilator Pole Cart . . . . . . . . . 8-149
Figure 8-131. PCB cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-150
Figure 8-132. Battery and harness connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-150
Figure 8-133. Removing caster from RTA cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-151
Figure 8-134. Assembling GUI mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-152
Figure 8-135. Flex arm insert. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-153
Figure 8-136. Flex arm insert on Puritan Bennett 800 Series Ventilator Compressor Mount Cart and Puritan
Bennett 800 Series Ventilator Pole Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-154
Figure 9-1. Puritan Bennett 840 Ventilator System patient system and accessories . . . . . . . . . . . . . . . 9-5
Figure 9-2. NeoMode patient circuit and accessories (shown on Puritan Bennett 800
Series Ventilator Pole Cart) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Figure 9-3. Flex arm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
Figure 9-4. Oxygen hose assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Figure 9-5. Air hose assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
Figure 9-6. Power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15
Figure 9-7. Ventilator major assemblies on RTA cart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
Figure 9-8. Major ventilator assemblies (shown on Puritan Bennett 800 Series Ventilator Pole Cart . . 9-20
Figure 9-9. Label kits (Sheet 1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-27
xx Puritan Bennett 800 Series Ventilator System Service Manual
Figures
Figure 9-9. Label kits (Sheet 2 of 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-28
Figure 9-10. 10.4-inch GUI assembly with TE GUI CPU PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-33
Figure 9-11. 10.4-inch GUI assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-35
Figure 9-12. 10.4-inch GUI handle assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-37
Figure 9-13. 10.4-inch GUI rotor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-39
Figure 9-14. 10.4-inch GUI keyboard and speaker assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-41
Figure 9-15. 9.4-inch GUI assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-45
Figure 9-16. 9.4-inch GUI front housing assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-47
Figure 9-17. 9.4-inch GUI rear housing assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-49
Figure 9-18. Breath delivery unit (BDU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-53
Figure 9-19. Exhalation module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-57
Figure 9-20. Inspiratory module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-61
Figure 9-21. Proportional solenoid (PSOL) valve assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-63
Figure 9-22. Inspiratory module floor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-67
Figure 9-23. BDU cover assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-69
Figure 9-24. BDU chassis assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-71
Figure 9-25. BDU chassis kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-73
Figure 9-26. 806 compressor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-75
Figure 9-27. 806 compressor base assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-77
Figure 9-28. Compressor unit enclosure assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-79
Figure 9-29. Compressor plenum assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-81
Figure 9-30. 802 Backup power source (BPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-83
Figure 9-31. 803 BPS assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-85
Figure 9-32. RTA Cart assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-87
Figure 9-33. Puritan Bennett 800 Series Ventilator Compressor Mount Cart assembly. . . . . . . . . . . . . 9-90
Figure 9-34. Puritan Bennett 800 Series Ventilator Pole Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-92
Puritan Bennett 800 Series Ventilator System Service Manual xxi
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xxii Puritan Bennett 800 Series Ventilator System Service Manual
SECTION
TABLES
Table 1-1. Ventilator specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Table 1-2. Compliance with standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Table 1-3. Electromagnetic Emissions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Table 1-4. Electromagnetic Immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Table 1-5. Electromagnetic immunity – conducted and radiated RF . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Table 1-6. Recommended separation distances between portable and mobile RF communications
equipment and the Puritan Bennett 840 Ventilator System . . . . . . . . . . . . . . . . . . . . . . . . . .1-14
Table 1-7. Compliant cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Table 1-8. Technical information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Table 1-9. Ventilator range, resolution, accuracy, new patient/defaults . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Table 1-10. Tools, equipment, and service materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Table 1-11. Schedule of periodic maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35
Table 1-12. Service kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37
Table 1-13. GUI front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40
Table 1-14. GUI rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47
Table 1-15. BDU front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48
Table 1-16. BDU I/O panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51
Table 1-17. BDU right-side panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53
Table 1-18. BDU rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
Table 1-19. GUI rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56
Table 1-20. BPS controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59
Table 2-1. Pneumatic component descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Table 2-2. Electronic Component Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Table 2-3. NOVRAM contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-79
Table 2-4. Monitored data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-114
Table 2-5. Out-of-tolerance supply voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-118
Table 3-1. Self tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Table 3-2. Components tested by self tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Table 3-3. POST Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Table 3-4. POST outcomes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Table 3-5. Hardware requirements for SST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Table 3-6. SST tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Table 3-7. SST individual test results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Table 3-8. Overall SST outcomes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Table 3-9. Hardware requirements for EST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Table 3-10. EST tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Table 3-11. EST individual test results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Table 3-12. Overall EST outcomes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Table 4-1. Service Mode functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Table 4-2. Other screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Table 4-3. Service Mode Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Table 4-4. Exhalation valve calibration errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Puritan Bennett 800Series Ventilator System Service Manual
xxiii
Tables
Table 4-5. Vent Inop Test phases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Table 4-6. Vent Inop Test troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Table 4-7. Flow sensor calibration errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Table 4-8. Data key update error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Table 4-9. Serial Loopback Test error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Table 4-10. Initialize Flow Sensor errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Table 4-11. Cal Info Duplication errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Table 4-12. Serial number setup errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Table 5-1. Tools, equipment, and service materials required for
performance verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Table 5-2. Pre-performance verification testing and calibration requirements . . . . . . . . . . . . . . . . . . . . . 5-6
Table 5-3. Manual ventilator check target values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Table 6-1. Values of diagnostic code digits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Table 6-2. Puritan Bennett 840 Ventilator System diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Table 6-3. Address codes for BDU POST analog devices test errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-60
Table 6-4. BDU and GUI— Phase 1 (kernel) POST diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-62
Table 6-5. BDU only — Phase 2 POST diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-64
Table 6-7. BDU or GUI—Phase 3 POST diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-69
Table 6-8. Interrupt errors and test failures – POST self tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-70
Table 6-9. SST diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-72
Table 6-11. UT0002 Fault Addresses for VGA LCD controller PCB errors . . . . . . . . . . . . . . . . . . . . . . . . 6-108
Table 7-1. How the ventilator responds to alarm conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Table 7-2. Alarm messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Table 8-1. Testing and calibration requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Table 8-2. Differences between GUIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Table 8-3. GUI part replacement chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Table 8-4. BDU part replacement chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-51
Table 9-1. Abbreviations used in parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
xxiv Puritan Bennett 800Series Ventilator System Service Manual
SECTION
Warning
CHAPTER
General information 1
This chapter provides introductory information on the Puritan Bennett™ 840 Ventilator
System. Included are 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
This manual describes how to service the Puritan Bennett 840 Ventilator System.
Puritan Bennett recommends you become familiar with this manual and accompanying
labels before attempting to operate or maintain the ventilator.
The Puritan Bennett 800 Series Ventilator System Service Manual is intended to be used in
conjunction with the Puritan Bennett 800 Series Ventilator System Operator’s and Technical
Reference Manual. Both manuals are needed for field repair of the ventilator.
In several cases, however, similar information is contained in both manuals:
• Refer to the “Maintenance and service” chapter of the Puritan Bennett 800 Series Ventilator
System Operator’s and Technical Reference Manual for operator maintenance of filters and
the patient system. Refer to Chapter 8 of this manual for complete ventilator
maintenance information.
1
• Refer to the “Part numbers” appendix of the Puritan Bennett 800 Series Ventilator System
Operator’s and Technical Reference Manual for patient system part numbers. Refer to
Chapter 9 of this manual for complete part ordering information.
1.2 General product description
The Puritan Bennett 840 Ventilator System is a critical care ventilator intended for acute and
subacute care of infant, pediatric, and adult patients.
Electronically controlled and pneumatically powered, the Puritan Bennett 840 Ventilator
System contains a breath delivery unit (BDU), graphical user interface (GUI), and backup
power source (BPS). An optional compressor unit and three different cart styles [the RTA
(ready-to-assemble) cart, Puritan Bennett 800 Series Ventilator Compressor Mount Cart, and
the Puritan Bennett 800 Series Ventilator Pole Cart] are also available. The Puritan Bennett
800 Series Ventilator Compressor Mount Cart, which allows use with an 806 compressor, can
be used with a one-hour battery or an optional four-hour battery installed in its BPS, which is
located in the BDU shelf. The Puritan Bennett 800 Series Ventilator Pole Cart can also be used
with a one-hour battery or an optional four-hour battery, located in the cart base. The Puritan
Bennett 800 Series Ventilator Pole Cart cannot be used with a compressor.
Install only ventilator BDUs with serial numbers starting with 3512 onto the newer
Puritan Bennett 800 Series Ventilator Compressor Mount Cart and Puritan Bennett 800
Series Ventilator Pole Cart. Other ventilator serial numbers are not compatible with
the newer carts.
Puritan Bennett 800 Series Ventilator System Service Manual
1-1
1 General information
The Puritan Bennett 800 Series Ventilator Compressor Mount Cart and the Puritan Bennett
800 Series Ventilator Pole Cart may not be available in all regions. Please contact your local
Puritan Bennett representative for more information.
The BDU is the core of the ventilator. It contains the pneumatics that deliver gas and
electronic and electrical systems that control pneumatics, monitor alarms, and distribute
power. The ventilator includes two independent central processing units (CPUs): one for the
BDU that controls ventilation, and one for the GUI that monitors ventilator and patient data.
The GUI CPU verifies the BD CPU is functioning properly and prevents a single fault from
causing a simultaneous failure of controlling and monitoring operations.
The GUI provides a communications path between the ventilator and the operator. By using
the touch screen, keys, and knob on the GUI the practitioner gives initial instructions and
data to the ventilator. The GUI CPU processes this information and stores it in the ventilator’s
memory. The BD CPU uses this stored information to control and monitor the flow of gas to
and from the patient.
The Puritan Bennett 840 Ventilator System supplies mandatory or spontaneous breaths with
a preset oxygen concentration. A mandatory breath can be pressure- or volume-controlled. A
spontaneous breath allows the patient peak inspiratory flows up to 200 L/min with or
without pressure support.
The 802 BPS (Backup Power Supply) or 803 BPS (extended BPS) provides DC power to the
BDU in the event AC power is lost. A new, fully charged 802 BPS allows the ventilator to
function (without compressor or humidifier) for at least 60 minutes (30 minutes on
ventilators built prior to July 2007); thus, the BPS can power the ventilator for transport
purposes within the respiratory care facility. The 803 BPS can power the ventilator for at least
four hours under the same conditions.The BPS should always be connected to the ventilator
during operation.
The optional compressor unit provides compressed air to the BDU, and can be used in place
of wall or bottled air for normal operation. The compressor unit is powered by and
communicates with the BDU.
NOTE:
An external air source is required when performing service mode calibrations and
performance verification testing.
1.3 Configuration information
The Puritan Bennett 840 Ventilator System is available in a variety of versions, intended to
meet differing needs and regulations throughout the world. The major differences in
configuration among ventilators are listed below:
Electrical requirements: Available in 100 V, 50/60 Hz; 120 V, 60 Hz; 220
220
– 240 V, 60 Hz.
Languages: Keyboard, labels, software, and operator’s manual available in a variety of
languages.
Compressor: With or without compressor unit.
Mounting: Cart- or shelf-mount available.
Power cord: A variety of plug ends are available. Refer to the parts list in Chapter 9 of this
manual or in the Puritan Bennett 800 Series Ventilator System Operator’s and Technical Reference
Manual for specific part numbers.
– 240 V, 50 Hz;
Oxygen and air fittings: Ventilator available with diameter index safety standard (DISS)
male, DISS female, noninterchangeable screw thread (NIST) male, Air Liquide, and sleeve
index system (SIS) male fittings.
1-2 Puritan Bennett 800 Series Ventilator System Service Manual
General information 1
Caution
Oxygen and air hoses: Versions available to connect to DISS male, Air Liquide, SIS male,
British Oxygen Company (BOC) female, NIST male, and Dräger female supply fittings. DISS
female x DISS female versions available in different colors to satisfy different countries’
requirements.
Accessories: Ventilators may be equipped with accessories listed in Section 1.4.
1.4 Accessories
The following accessories are either required or can be used with the ventilator.
Patient circuit: A variety of reusable Puritan Bennett patient circuits, adult and pediatric,
with and without water traps, and with and without heated wire, is available. Consult the
“Part numbers” appendix of the Puritan Bennett 800 Series Ventilator System Operator’s and
Technical Reference Manual for patient circuit ordering information.
Humidification device: The Puritan Bennett 840 Ventilator System supports the use of an
optional humidification device, including a heated humidifier, heat and moisture exchanger
(HME), or heated wire. A mounting bracket is available for the Fisher & Paykel Humidifier. An
AC socket for the humidifier is available on 100 and 120 V ventilators.
Remote nurse call unit: An analog output connector permits connection to a remote nurse
call unit. (Puritan Bennett does not supply nurse’s call units or cables.) Refer to
Communication Capabilities in Table 1-1 for remote alarm port (nurse call) specifications.
• Do not connect or disconnect the ventilator’s graphic user interface (GUI), backup power
source (BPS), or compressor while the power switch is on or the ventilator is connected to AC
power.
• All components must be securely mounted and connected by qualified service personnel
according to the appropriate Puritan Bennett installation instructions.
• Do not obstruct the breath delivery unit (BDU), GUI, or compressor cooling vents or fan vents.
• To avoid possible damage to ventilator components, do not use the horizontal surfaces of the
ventilator to place or stack objects.
Puritan Bennett 800 Series Ventilator System Service Manual 1-3
1 General information
1.5 Specifications
Table 1-1: Ventilator specifications
Physical characteristics
Weight Breath delivery unit (BDU): 19.5 kg (43.0 lb)
Graphic user interface (GUI): 6.7 kg (14.7 lb)
802 Backup power source (BPS): 7.6 kg (16.8 lb)
803 Extended BPS: (with battery pack, mounting bracket, and backstop) 19.5 kg (43 lb)
RTA Cart: 15.5 kg (34.2 lb)
Puritan Bennett 800 Series Ventilator Compressor Mount Cart with one-hour BPS: 31.6 kg (69.7 lb)
Puritan Bennett 800 Series Ventilator Compressor Mount Cart with four-hour BPS: 37.7 kg (83.1 lb)
Puritan Bennett 800 Series Ventilator Pole Cart with one-hour battery: 34.4 kg (75.8 lb)
Puritan Bennett 800 Series Ventilator Pole Cart with four-hour battery: 40.5 kg (89.3 lb)
804 Compressor unit: 31.6 kg (69.7 lb) (no longer available)
806 Compressor unit (100 V, 120 V): 23.6 kg (52 lb)
806 Compressor unit (220 V): 24.5 kg (54 lb)
Dimensions BDU: 330 mm high x 457 mm wide x 254 mm deep (13 in. high x 18 in. wide x 10 in. deep)
GUI: 460 mm high x 394 mm wide x 170 mm deep (18.1 in. high x 15.5 in. wide x 6.7 in. deep)
802 BPS: 83 mm high x 244 mm wide x 254 mm deep (3.25 in. high x 9.6 in. wide x 10 in. deep)
803 BPS (extended BPS for use with RTA cart): 95 mm high x 438 mm wide x 260 mm deep includes
housing and bracket(3.75 in. high x 17.25 in. wide x 10.25 in. deep)
RTA Cart: 998 mm high x 582 mm wide x 602 mm deep (39.3 in. high x 22.9 in. wide x 23.7 in.
deep)
Puritan Bennett 800 Series Ventilator Compressor Mount Cart: 1041 mm high x 686 mm wide x 839
mm deep (41 in. high x 27 in. wide x 33 in. deep with wheels in outermost position)
Puritan Bennett 800 Series Ventilator Pole Cart: 1041mm high x 686 mm wide x 839 mm deep (41
in. high x 27 in. wide x 33 in. deep with wheels in outermost position)
804 Compressor: 417 mm high x 458 mm wide x 362 mm deep (16.4 in. high x 18 in. wide x 14.25
in. deep) (no longer available)
806 Compressor: 425 mm high x 458 mm wide x 362 mm deep (17 in. high x 18 in. wide x 14.25
in. deep)
Connectors Inspiratory limb connector: ISO 22-mm conical male
Expiratory limb connector (on expiratory filter): ISO 22-mm conical male
Air and oxygen inlets: DISS male, DISS female, NIST, Air Liquide, or SIS fitting (depending on country
and configuration)
Environmental requirements
Temperature Operating: 10 to 40 C (50 to 104 F) at 10 to 95% relative humidity, noncondensing
Storage: -20 to 50 C (-4 to 122 F) at 10 to 95% relative humidity, noncondensing
Atmospheric
pressure
Altitude Operating: -443 to 3280 m (-1350 to 10,000 ft)
1-4 Puritan Bennett 800 Series Ventilator System Service Manual
Operating: 700 to 1060 hPa (10.2 to 15.4 psi)
Storage: 500 to 1060 hPa (7.3 to 15.4 psi)
Storage: Up to 6560 m (20,000 ft)
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