Tyco KnightStar 330 User manual

Bi-Level®Ventilator
KnightStar®330 Service Manual
manual 4-070089-00 Rev. B (10/02)
Y-102942-00A Rev G
March, 2004

© Copyright 2004 Nellcor Puritan Bennett Inc. All rights reserved.
KnightStar, Bi-Level, SoftFit, ADAM, and Breeze are trademarks of Nellcor Puritan Bennett Inc. For more information, contact
your Puritan Bennett representative.
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:
Puritan-Bennett Corporation Tyco Healthcare UK Limited
4280 Hacienda Drive 154 Fareham Road
Pleasanton, CA 94588 USA Gosport PO13 0AS, U.K.
Toll Free: 1.800.635.5267

SECTION
i
CONTENTS
1
General information
1.1 Safety considerations...................................................................................................1-1
1.2 Electromagnetic susceptibility......................................................................................1-2
1.3 Customer assistance ....................................................................................................1-2
1.4 How to use this manual...............................................................................................1-2
1.4.1 Definitions...........................................................................................................1-3
1.4.2 Using the manual to troubleshoot the KnightStar 330..........................................1-3
1.5 General product description ........................................................................................1-3
1.6 Configuration information...........................................................................................1-4
1.7 Accessories ..................................................................................................................1-4
1.8 Specifications ..............................................................................................................1-5
1.9 Compliance and approvals ..........................................................................................1-8
1.10 Breathing modes and settings ..................................................................................1-9
1.11 Initial factory settings .............................................................................................1-11
1.12 Controls, indicators, and symbols ............................................................................1-12
1.13 Onscreen symbols and abbreviations.......................................................................1-21
1.14 Ventilator serial numbers and software version ........................................................1-22
1.15 Tools, equipment, and service materials ..................................................................1-22
1.16 Periodic maintenance .............................................................................................1-24
1.17 Spare parts ..............................................................................................................1-24
1.18 Service philosophy ..................................................................................................1-25
2
Theory of operation
2.1 Ventilator components ................................................................................................2-1
2.2 Operational overview ..................................................................................................2-2
2.2.1 Operating modes ................................................................................................2-3
2.2.2 Breathing modes .................................................................................................2-4
2.3 Breath delivery ............................................................................................................2-5
2.4 Breath detection..........................................................................................................2-6
2.4.1 Expiratory sensitivity............................................................................................2-6
2.4.2 Inspiratory sensitivity ...........................................................................................2-7
2.4.3 Rise time .............................................................................................................2-7
2.5 External battery operation ...........................................................................................2-8
2.6 Safety features .............................................................................................................2-9
2.6.1 Overcurrent protection........................................................................................2-9
2.6.2 Controls protection .............................................................................................2-9
2.6.3 Power off protection............................................................................................2-9
2.6.4 Maximum pressure..............................................................................................2-9
2.6.5 Audible alarms.....................................................................................................2-9
2.6.5.1 High priority alarm ....................................................................................2-9
KnightStar 330 Service Manual Y-102942-00A Rev. G (03/04)

Contents
ii Y-102942-00A Rev. G (03/04) KnightStar 330 Service Manual
2.6.5.2 Medium priority alarm ............................................................................ 2-10
2.6.5.3 Low priority alarm................................................................................... 2-10
2.6.5.4 Alarm control .......................................................................................... 2-10
3
Performance verification
3.1 Initial ventilator cleaning and inspection ..................................................................... 3-1
3.2 System set-up ............................................................................................................. 3-1
3.3 Performance verification tests...................................................................................... 3-3
3.3.1 Functional performance tests .............................................................................. 3-3
3.3.1.1 Self tests.................................................................................................... 3-3
3.3.1.2 Blower test................................................................................................ 3-3
3.3.1.3 Leak alarm test.......................................................................................... 3-4
3.3.1.4 Sensitivity test ........................................................................................... 3-4
3.3.1.5 Pressure test .............................................................................................. 3-5
3.3.1.6 Delay sequence test .................................................................................. 3-5
3.3.1.7 Low pressure alarm test............................................................................. 3-5
3.3.1.8 High pressure alarm test............................................................................ 3-6
3.3.1.9 Power failure indicator test........................................................................ 3-6
3.3.1.10 Autoclear procedure.................................................................................. 3-6
3.4 KnightStar 330 performance verification checklist........................................................ 3-7
4
Troubleshooting
4.1 Alarms ........................................................................................................................ 4-1
4.2 Troubleshooting checklist ........................................................................................... 4-3
4.3 Internal malfunction errors.......................................................................................... 4-7
4.4 Logged errors ........................................................................................................... 4-11
5
Repair
5.1 Tools, test equipment, and service materials ............................................................... 5-1
5.2 Ventilator cleaning and inspection .............................................................................. 5-1
5.3 Ventilator assembly drawing ....................................................................................... 5-1
5.4 Initial ventilator disassembly ....................................................................................... 5-2
5.5 Membrane switch replacement................................................................................... 5-4
5.6 LCD panel replacement............................................................................................... 5-5
5.7 Alarm PCBA replacement ............................................................................................ 5-5
5.8 Cooling fan assembly replacement.............................................................................. 5-9
5.9 Ventilator reassembly ................................................................................................ 5-10
5.10 Post-repair testing ................................................................................................... 5-10
6
Warranty and service information
6.1 Limited warranty......................................................................................................... 6-1
6.2 Service information ..................................................................................................... 6-1

1
SECTION
SECTION
1-1
General information 1
This manual provides information needed to service the Puritan Bennett KnightStar 330®Bi-
Level®ventilator and is intended for use by certified biomedical engineering technicians or
personnel with equivalent experience and training in servicing this type of equipment.
This section provides introductory information on the KnightStar 330 ventilator including:
• General safety information
• Instructions on how to use the manual
• A description of the ventilator, its accessories, and its controls and indicators
• Detailed specifications and required tools and test equipment used for service and repair
1.1 Safety considerations
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
KnightStar 330 ventilator.
• To ensure proper servicing and avoid the possibility of physical injury, only qualified
personnel (minimum requirement Certification for Biomedical Equipment Technician or
equivalent) should attempt to service or make authorized modifications to the ventilator.
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 turning off the ventilator power switch and disconnecting the
power source.
• 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 KnightStar 330 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, and the power source.
• When handling any part of the KnightStar 330, always follow your hospital infection
control guidelines for handling infectious material.
Puritan Bennett recognizes that 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. Specific cleaning instructions for the KnightStar 330 are given in section 5.2 on
page 1.
Puritan Bennett recommends that users of its products that require cleaning and
sterilization/disinfection consider the Center for Disease Control (CDC) publication:
KnightStar 330 Service Manual Y-102942-00A Rev. G (03/04)