Puritan-Bennett Helios Service manual
Puritan-Bennett Corp.
2800 Airwest Blvd.
Plainfield, IN 46168
Customer Service:
1-800-635-5267, press 2
Technical Support:
1-800-255-6774, press 2
TECHNICAL MANUAL
HELiOS™ Liquid Oxygen Reservoirs
(Standard and Universal)
HELiOS™ Liquid Oxygen Portables
Part Number B-701693-00 Rev. C (10/02)
©2002 Puritan-Bennett Corp.
CAUTION: Federal (U.S.A.) laws restricts this
!
device to sale by or on the order of a
physician.
LIST OF EFFECTIVE PAGES
This list of effective pages represents manual P/N B-701693-00, Revision C.
Revision Description Date
A Initial Release 05-00
B Page Information Changes 10-01
C Universal Res. & Parts Illus. Changes 10-02
Effective Pages Revision Effective Pages Revision
Title Page C 11-1 A
ii C 11-2, 11-3 B
iii A 12-1, 12-2 A
iv to x C 12-3 to 12-8 C
1-1 to 1-3 C 12-9, 12-10 A
1-4 to 1-12 A 12-11 to 12-25 C
1-13 to 1-19 B 13-1 to 13-8 C
1-20 to 1-22 A
2-1 to 2-4 C
2-5 B
2-6 to 2-8 C
2-9 B
2-10 to 2-17 C
3-1, 3-2 C
3-3 A
3-4 to 3-15 C
4-1 to 4-13 C
5-1 to 5-3 C
6-1, 6-2 A
6-3 to 6-9 C
6-10 A
6-11 to 6-22 C
7-1 to 7-8 C
8-1 A
8-2, 8-3 B
8-4 to 8-6 A
8-7 to 8-12 B
9-1, 9-2 A
9-3 B
9-4 to 9-7 A
9-8 to 9-14 B
10-1 B
10-2 to 10-10 C
10-11 A
NOTE: SI pressure values expressed in manual are referenced to
atmosphere.
HELiOS™, Companion®, and Teleview™ are trademarks of PURITAN-BENNETT CORP.
SNOOP® is a trademark of the SWAGELOK Co.
Teflon® and Krytox® are trademarks of E. I. DUPONT DE NEMOURS & Co.
Kel-F® and Scotch-Brite™ are trademarks of the 3M Co.
Magnehelic® is a trademark of the DWYER INSTRUMENT Co.
QUICK-GRIP® is a trademark of the AMERICAN TOOL Co.
Sporicidin® is a trademark of SPORICIDIN INTERNATIONAL.
ii
B-701693-00 Rev. C
DEFINITION OF STATEMENTS
Statements in this manual preceded by the following words are of special
significance:
!
A warning describes conditions that concern your personal
safety and the safety of others. It includes the actions required to
prevent injury. Ignoring warnings can lead to injury or death.
CAUTION: A caution informs you about conditions that may
!
cause possible damage to the equipment or other property, or
situations that may cause reduced or no oxygen flow.
NOTE: Notes provide important information about using the equipment properly.
WARNING
DEFINITION OF PRODUCT SYMBOLS
SYMBOL DEFINITION SYMBOL DEFINITION
Reservoir Full Do not smoke near unit
Reservoir Empty lated at all times
Portable Full parts
Portable Empty Keep unit in upright
Low Battery (9VDC)
Drip Proof position in between
Keep unit well venti-
Do not touch frosted
position
Keep unit upright,
flat on its back, or any
B-701693-00 Rev. A
Type BF
(Electrical Safety)
iii
PREFACE
This manual provides the information needed to service the Puritan Bennett HELiOS
Standard Reservoir, Universal Reservoir, and H300 Portable units. Information in the first
section of this manual covers both the Reservoir and the Portable units. Information in
Sections 2 through 7 covers just the Reservoir unit. Information in Sections 8 through 13
covers just the HELiOS 300 Portable unit. This information is intended for use by
technicians or personnel qualified to repair and service medical liquid oxygen equipment. Do not attempt to fill or repair these units until you read and understand the
information in this manual.
The following document contains additional information useful in servicing this equipment:
• HELiOS Oxygen System Operating Instructions: P/N B-701641-00
For product assistance contact: Puritan-Bennett Corp.
2800 Airwest Blvd.
Plainfield, IN 46168
Customer Service:
1-800-635-5267, press 2
Technical Support:
1-800-255-6774, press 2
www.heliosoxygen.com
NOTE: HELiOS Reservoir and Portable units are intended only for the delivery of
medical grade oxygen as prescribed by a physician.
WARNING
Improper usage hazard. Oxygen supplied from this equipment is
!
for supplemental use and is not intended to be life supporting or
life sustaining. This equipment is not intended for use by patients
who would suffer immediate, permanent, or serious health consequences as a result of an interruption in their oxygen supply.
CAUTION: Consistent with the recommendations of the medical
!
community on the use of conserving devices (which includes the
nasal cannula), it is recommended that the HELiOS system be
qualified on patients in the situations it will be used (rest, exercise,
sleep). Differences in nasal cannula design may vary the ability to
trigger a conserving device.
Information contained in this document, including performance specifications, is subject
to change without notice. Puritan-Benett makes no warranty of any kind with regard to the
material in this manual, including, but not limited to, the implied warranties of salability
and fitness for a particular purpose. Puritan-Bennett shall not be liable for errors contained
herein or for incidental or consequential damages in connection with either providing this
manual or the use of material in this manual. HELiOS is a trademark of Puritan-Bennett
Corp. The information contained in this manual is the sole property of Puritan-Bennett
and may not be reproduced without the permission of the company. Copyright© 2002 by
Puritan-Bennett Corp. All rights reserved.
iv
B-701693-00 Rev. C
TABLE OF CONTENTS
Section 1 –Introduction to the HELiOS System
1.1 HELiOS System Description ............................................................................ 1-1
1.2 Serial Number Identification ............................................................................ 1-3
1.3 Safety Precautions ........................................................................................... 1-4
1.3.1 Cold Safety .............................................................................................. 1-4
1.3.2 Expansion Safety ..................................................................................... 1-5
1.3.3 Fire Safety ................................................................................................ 1-5
1.4 Liquid Oxygen Saturation Principles................................................................ 1-7
1.5 Pressure Fittings and Connections.................................................................. 1-9
1.5.1 Compression Fitting Makeup .................................................................. 1-9
1.5.2 Compression Fitting Remake ................................................................... 1-10
1.5.3 Compression Fitting Troubleshooting .................................................... 1-10
1.5.4 Tapered Pipe Thread (NPT) Makeup ....................................................... 1-11
1.5.5 Tapered Pipe Thread Troubleshooting .................................................... 1-12
1.5.6 Flexible Tube Barbed Fitting Makeup ...................................................... 1-12
1.5.7 Flexible Tube Removal from Barbed Fitting ............................................. 1-12
1.6 Recommended Tools, Test Equipment, and Service Materials .........................1-12
1.7 Test Equipment Calibration .............................................................................. 1-17
1.8 Accessories ..................................................................................................... 1-18
Section 2 – Reservoir General Information
2.1 Product Description ......................................................................................... 2-1
2.1.1 HELiOS Standard Reservoir ..................................................................... 2-1
2.1.2 HELiOS Universal Reservoir .................................................................... 2-2
2.2 Performance Specifications .............................................................................. 2-3
2.3 Unpacking, Installation, Repacking ................................................................. 2-4
2.3.1 Unpacking ............................................................................................... 2-4
2.3.2 Installation ............................................................................................... 2-4
2.3.3 Repacking for Return ............................................................................... 2-5
2.4 Controls, Indicators, and Connectors ..............................................................2-5
2.4.1 Fill Connector .......................................................................................... 2-5
2.4.2 Release Button ........................................................................................ 2-5
2.4.3 Vent Valve ................................................................................................ 2-6
2.4.4 Pressure Indicator (Standard Reservoir Only) ......................................... 2-6
2.4.5 Contents Indicator ................................................................................... 2-6
2.4.6 Oxygen Outlet .......................................................................................... 2-6
2.4.7 Moisture Container ..................................................................................2-6
2.5 Filling Instructions ........................................................................................... 2-7
2.5.1 Oxygen Source Requirements .................................................................. 2-7
2.5.2 Transfer Line ........................................................................................... 2-9
2.5.3 Pre-Fill Inspection .................................................................................... 2-10
2.5.4 Filling Procedure ...................................................................................... 2-11
2.5.5 Post-Fill Inspection .................................................................................. 2-14
2.5.6 Checking Saturation Pressure .................................................................. 2-14
2.5.7 Resaturating Liquid Oxygen .................................................................... 2-15
2.6 Operating Procedures ...................................................................................... 2-15
2.7 Maintenance .................................................................................................... 2-16
B-701693-00 Rev. C
v
3 – Reservoir Theory of Operation
3.1 Reservoir Components .................................................................................... 3-1
3.1.1Cryogenic Container ................................................................................. 3-1
3.1.2 Fill Connector/Quick Connect ................................................................. 3-2
3.1.3 Vent Valve ................................................................................................ 3-3
3.1.4 Relief/Economizer Valve ........................................................................... 3-3
3.1.5 Secondary Relief Valve ............................................................................ 3-5
3.1.6 Pressure Regulator (Standard Reservoir Only) ........................................ 3-5
3.1.7 Warming Coil ........................................................................................... 3-6
3.1.8 Oxygen Outlet w/Poppet Valve ................................................................ 3-6
3.1.9 Pressure Indicator (Standard Reservoir Only) ......................................... 3-7
3.1.10 Contents Indicator ................................................................................. 3-7
3.2 Reservoir Operation ......................................................................................... 3-8
3.2.1 Filling the Reservoir ................................................................................. 3-8
3.2.2 Fill Termination ........................................................................................ 3-10
3.2.3 Standby ................................................................................................... 3-11
3.2.4 Gaseous Oxygen Use ...............................................................................3-12
3.2.5 HELiOS Reservoir Operation Over 24 Hours ........................................... 3-14
4 – Reservoir Performance Verification
4.1 Equipment Required ........................................................................................ 4-1
4.2 Leak Tests ........................................................................................................ 4-2
4.2.1 Liquid Leak Detector Test ........................................................................ 4-2
4.2.2 Pressure Hold Test (Alternate Leak Test) ................................................ 4-5
4.3 Gaseous Oxygen Functional Tests .................................................................. 4-6
4.3.1 Primary Relief Valve Test ......................................................................... 4-6
4.3.2 Secondary Relief Valve Test .................................................................... 4-7
4.3.3 Pressure Indicator Test (Standard Reservoir Only) ................................. 4-8
4.3.4 Pressure Regulator Test (Standard Reservoir Only) ................................ 4-8
4.3.5 Flow Restrictor Test ................................................................................. 4-9
4.4 Liquid Oxygen Functional Tests ...................................................................... 4-10
4.4.1 Contents Indicator Test ........................................................................... 4-10
4.4.2 Normal Evaporation Rate (NER) Test ....................................................... 4-11
4.4.3 Economizer Test ....................................................................................... 4-12
5 – Reservoir Troubleshooting
6 – Reservoir Service and Repair
6.1 Emptying a Reservoir Unit ............................................................................... 6-1
6.2 Shroud Assembly ............................................................................................ 6-3
6.2.1 Upper Shroud Removal ............................................................................6-3
6.2.2 Upper Shroud Service .............................................................................. 6-3
6.2.3 Upper Shroud Installation ....................................................................... 6-3
6.2.4 Lower Shroud Removal ............................................................................ 6-3
6.2.5 Lower Shroud Installation ....................................................................... 6-4
6.3 Contents Indicator ........................................................................................... 6-5
vi
B-701693-00 Rev. C
6.3.1 Removal ................................................................................................... 6-5
6.3.2 Service ..................................................................................................... 6-6
6.3.3 Installation ............................................................................................... 6-6
6.4 Pressure Indicator (Standard Reservoir Only) ................................................. 6-7
6.4.1 Removal ................................................................................................... 6-7
6.4.2 Service ..................................................................................................... 6-7
6.4.3 Installation ............................................................................................... 6-7
6.5 Fill Connector Release Assembly .................................................................... 6-8
6.5.1 Removal ................................................................................................... 6-8
6.5.2 Installation ............................................................................................... 6-8
6.6 Male Fill Connector ......................................................................................... 6-8
6.6.1 Removal ................................................................................................... 6-8
6.6.2 Inspection ................................................................................................ 6-9
6.6.3 Service ..................................................................................................... 6-9
6.6.4 Disassembly ............................................................................................ 6-9
6.6.5 Reassembly ..............................................................................................6-10
6.6.6 Installation ............................................................................................... 6-10
6.7 Vent Valve .......................................................................................................... 6-11
6.7.1 Removal ................................................................................................... 6-11
6.7.2 Inspection ................................................................................................ 6-11
6.7.3 Service ..................................................................................................... 6-11
6.7.4 Disassembly ............................................................................................ 6-11
6.7.5 Reassembly ..............................................................................................6-12
6.7.6 Installation ............................................................................................... 6-12
6.8 Relief/Economizer (R/E) Valve ............................................................................ 6-13
6.8.1 Removal ................................................................................................... 6-13
6.8.2 Installation ............................................................................................... 6-13
6.8.3 R/E Valve Adjustment .............................................................................. 6-14
6.9 Secondary Relief Valve ...................................................................................... 6-16
6.9.1 Removal ................................................................................................... 6-16
6.9.2 Installation ............................................................................................... 6-16
6.10 Warming Coil ................................................................................................... 6-16
6.10.1 Removal ................................................................................................. 6-16
6.10.2 Installation ............................................................................................. 6-17
6.11 Economizer Tube Assembly ............................................................................ 6-17
6.11.1 Removal ................................................................................................. 6-17
6.11.2 Installation ............................................................................................. 6-18
6.12 Pressure Regulator (Standard Reservoir Only) ................................................ 6-18
6.12.1 Removal ................................................................................................. 6-18
6.12.2 Service ................................................................................................... 6-18
6.12.3 Installation ............................................................................................. 6-18
6.12.4 Adjustment ............................................................................................ 6-19
6.13 Oxygen Outlet Block (Universal Reservoir Only) ............................................ 6-20
6.13.1 Removal ................................................................................................. 6-20
6.13.2 Installation ............................................................................................. 6-20
6.14 Cryogenic Container ........................................................................................ 6-20
6.14.1 Removal ................................................................................................. 6-20
6.14.2 Installation ............................................................................................. 6-21
6.15 Purging the Container Liquid Sense Tube ....................................................... 6-21
B-701693-00 Rev. C
vii
7 – Reservoir Illustrated Parts List
Figure 7-1, HELiOS Standard Reservoir ........................................................... 7-3
Figure 7-2, HELiOS Standard Reservoir ........................................................... 7-4
Figure 7-3, HELiOS Standard Reservoir ........................................................... 7-5
Figure 7-4, HELiOS Universal Reservoir .......................................................... 7-6
Figure 7-5, HELiOS Universal Reservoir .......................................................... 7-7
Figure 7-6, HELiOS Universal Reservoir .......................................................... 7-8
8 - HELiOS 300 General Information
8.1 Product Description ......................................................................................... 8-1
8.2 Performance Specifications .............................................................................. 8-2
8.3 Unpacking, Installation, and Repacking .......................................................... 8-3
8.3.1 Unpacking ............................................................................................... 8-3
8.3.2 Installation ............................................................................................... 8-3
8.3.3 Repacking for Return ............................................................................... 8-3
8.4 Controls, Indicators, and Connectors ..............................................................8-4
8.4.1 Fill Connector .......................................................................................... 8-4
8.4.2 Vent Valve ................................................................................................ 8-4
8.4.3 Contents Indicator ................................................................................... 8-4
8.4.4 Demand Flow Control .............................................................................. 8-4
8.4.5 Oxygen Supply Tube Quick Connect ...................................................... 8-4
8.4.6 Oxygen Outlet Connector ........................................................................ 8-5
8.4.7 Sense Connector ..................................................................................... 8-5
8.4.8 Dual-Lumen Cannula ............................................................................... 8-5
8.5 Filling Instructions ........................................................................................... 8-5
8.5.1 Pre-Fill Inspection .................................................................................... 8-6
8.5.2 Filling Procedure ...................................................................................... 8-6
8.5.3 Post-Fill Inspection .................................................................................. 8-9
8.6 Operating Procedures ...................................................................................... 8-9
8.7 Maintenance .................................................................................................... 8-11
viii
9 – HELiOS 300 Theory of Operation
9.1 H-300 Portable Components ............................................................................ 9-1
9.1.1 Cryogenic Container ................................................................................ 9-1
9.1.2 Fill Connector/Quick Connect ................................................................. 9-2
9.1.3 Vent Valve ................................................................................................ 9-3
9.1.4 Relief/Economizer Valve ........................................................................... 9-4
9.1.5 Secondary Relief Valve ............................................................................ 9-5
9.1.6 Warming Coils ......................................................................................... 9-6
9.1.7 Demand Flow Control Valve .................................................................... 9-6
9.1.8 Oxygen Supply Tube Quick Connect and Inline Check Valve ................. 9-7
9.1.9 Contents Indicator ................................................................................... 9-8
9.2 H-300 Portable Operation ................................................................................. 9-9
9.2.1 Filling the HELiOS 300 ............................................................................. 9-9
9.2.2 Fill Termination ........................................................................................ 9-10
9.2.3 Standby ................................................................................................... 9-11
9.2.4 Gaseous Oxygen Use – H-300 Filled with Liquid Oxygen ........................ 9-12
9.2.5 Gaseous Oxygen Use – H-300 Connected to Oxygen Supply Tube ........ 9-14
B-701693-00 Rev. C
10 – HELiOS 300 Performance Verification
10.1 Equipment Required ........................................................................................ 10-1
10.2 Leak Tests ........................................................................................................ 10-2
10.2.1 Liquid Leak Detector Test ...................................................................... 10-2
10.2.2 Pressure Hold Test (Alternate Leak Test) .............................................. 10-4
10.3 Gaseous Oxygen Functional Tests .................................................................. 10-4
10.3.1 Primary Relief Valve Test ........................................................................ 10-4
10.3.2 Secondary Relief Valve Test ................................................................... 10-5
10.4 Liquid Oxygen Functional Tests ...................................................................... 10-7
10.4.1 Contents Indicator Test ......................................................................... 10-7
10.4.2 Normal Evaporation Rate (NER) Test ..................................................... 10-8
10.4.3 Economizer Test ..................................................................................... 10-8
10.4.4 Demand Flow Control Valve Test ........................................................... 10-10
11 – HELiOS 300 Troubleshooting
12 – HELiOS 300 Service and Repair
12.1 Emptying an H-300 Unit ................................................................................... 12-1
12.2 Side Covers ...................................................................................................... 12-2
12.2.1 Removal ................................................................................................. 12-3
12.2.2 Disassembly – Front Side Cover ............................................................ 12-3
12.2.3 Reassembly – Front Side Cover ............................................................. 12-3
12.2.4 Disassembly – Rear Side Cover ............................................................. 12-4
12.2.5 Reassembly – Rear Side Cover .............................................................. 12-4
12.2.6 Installation ............................................................................................. 12-5
12.3 Contents Indicator ........................................................................................... 12-5
12.3.1 Removal ................................................................................................. 12-5
12.3.2 Inspection .............................................................................................. 12-5
12.3.3 Disassembly and Reassembly ................................................................ 12-5
12.3.4 Installation ............................................................................................. 12-5
12.4 Female Fill Connector and Tube ...................................................................... 12-5
12.4.1 Removal ................................................................................................. 12-6
12.4.2 Inspection .............................................................................................. 12-7
12.4.3 Service ................................................................................................... 12-7
12.4.4 Disassembly ........................................................................................... 12-7
12.4.5 Reassembly ............................................................................................ 12-9
12.4.6 Installation ............................................................................................. 12-11
12.5 Vent Valve and Tube ........................................................................................ 12-11
12.5.1 Removal ................................................................................................. 12-11
12.5.2 Inspection .............................................................................................. 12-12
12.5.3 Service ................................................................................................... 12-13
12.5.4 Disassembly ........................................................................................... 12-13
12.5.5 Reassembly ............................................................................................ 12-14
12.5.6 Installation ............................................................................................. 12-14
12.6 Relief/Economizer Valve ................................................................................... 12-14
12.6.1 Removal ................................................................................................. 12-15
12.6.2 Installation ............................................................................................. 12-15
12.6.3 R/E Valve Adjustment ............................................................................ 12-16
B-701693-00 Rev. C
ix
12.7 Secondary Relief Valve ................................................................................. 12-19
12.7.1 Removal .............................................................................................. 12-19
12.7.2 Installation ......................................................................................... 12-19
12.8 Demand Flow Co ntrol Valve ......................................................................... 12-19
12.8.1 Removal .............................................................................................. 12-19
12.8.2 Service ................................................................................................ 12-20
12.8.3 Installation ......................................................................................... 12-20
12.8.4 Sensitivity Adjustment ...................................................................... 12-20
12.9 Warming Coils .............................................................................................. 12-22
12.9.1 Removal – Liquid Withdrawal Warming Coil ...................................... 12-22
12.9.2 Installation – Liquid Withdrawal Warming Coil .................................. 12-23
12.9.3 Removal – Gas Withdrawal Warming Coil .......................................... 12-23
12.9.4 Installation – Gas Withdrawal Warming Coil ...................................... 12-23
12.10 Oxygen Supply Tube Quick Connect & Inline Check Valve ......................... 12-23
12.10.1 Removal – Quick Connect ................................................................ 12-23
12.10.2 Installation – Quick Connect ............................................................ 12-24
12.10.3 Removal – Inline Check Valve .......................................................... 12-24
12.10.4 Installation – Inline Check Valve ...................................................... 12-24
12.11 Cryogenic Container ...................................................................................... 12-24
12.11.1 Removal ............................................................................................ 12-24
12.11.2 Installation ........................................................................................12-25
13 – HELiOS 300 Illustrated Parts List
Figure 13-1, HELiOS 300 Portable ................................................................. 13-3
Figure 13-2, HELiOS 300 Portable ................................................................. 13-4
Figure 13-3, HELiOS 300 Portable ................................................................. 13-5
Figure 13-4, HELiOS 300 Portable ................................................................. 13-6
Figure 13-5, HELiOS 300 Portable ................................................................. 13-7
Figure 13-6, HELiOS 300 Portable ................................................................. 13-8
Technical Bulletins
x
B-701693-00 Rev. C
HELiOS Liquid Oxygen System Technical Manual
INTRODUCTION TO THE HELiOS SYSTEM
WARNING
Read Section 1, and any other applicable section, thoroughly
!
before attempting to service or fill a HELiOS Reservoir or Portable.
Failure to do so may result in injury or death.
The HELiOS is an innovative liquid oxygen system where the Reservoir and Portable unit
provide a new level of performance efficiency for oxygen therapy patients. This section
provides introductory information on the HELiOS liquid oxygen system. It includes a brief
system description; serial number identification; safety precautions; liquid oxygen
saturation fundamentals; pressure fittings and connections information; tool, test
equipment, and service material recommendations; test equipment calibration information;
and accessory information.
The information in this section relates to both the Reservoir and the Portable units.
Sections 2 through Section 7 provide technical and service information that is specific to
the HELiOS Standard Reservoir and Universal Reservoir units. Sections 8 through Section
13 provide technical and service information that is specific to the HELiOS 300 Portable
unit.
Section
1
1.1 HELIOS SYSTEM DESCRIPTION
The HELiOS liquid oxygen system provides 24 hour per day reservoir and portable oxygen
therapy for a typical Chronic Obstructive Pulmonary Disease (COPD) patient. HELiOS
uses oxygen conservation and exclusive “no loss” technology to greatly improve
performance efficiency compared to conventional liquid oxygen systems. The HELiOS
Reservoir unit redefines the evaporative loss characteristics of home liquid oxygen
vessels and has features that enhance the safety and usability of the product. Using the
H300 Portable with a Standard HELiOS Reservoir will typically require less than one liquid
oxygen delivery to the patient per month. The HELiOS Universal Reservoir has many of
the same features as the Standard Reservoir plus it permits filling the H300 Portable as well
as the Puritan Bennett Companion 1000, Companion T, and Companion 500 series portables. The HELiOS 300 Portable unit sets a new standard for size, weight, and range that
surpasses existing cylinder or liquid based portables.
B-701693-00 Rev. C
Introduction to the HELiOS System
- 1-1
HELiOS Liquid Oxygen System Technical Manual
Like today’s liquid oxygen systems, the HELiOS system consists of a Reservoir and a
Portable patient unit (Figure 1-1). However, the system components are capable of
working together rather than separately. The HELiOS 300 Portable fills from the Reservoir
for ambulatory use or connects to the Reservoir with a flexible oxygen supply tube for
home use. This provides the patient with the same familiar interface whether at home or
away.
Figure 1-1: HELiOS Reservoir and Portable
The patient receives oxygen from the H-300 Portable through a dual lumen cannula and a
pneumatic demand flow control system. The H-300 Portable provides 11 different oxygen
flow settings from .12 through 4 . Flow settings from 1 through 4 provide demand flow
oxygen to the patient on each inspiration. No oxygen flows during exhalation. Flow
settings less than 1 provide continuous oxygen flow (L/min) to the patient at the indicated rate. The demand flow control system in a full H-300 Portable can provide a 2 L/min
patient with up to 10 hours of demand flow oxygen. This results in a 4:1 oxygen savings
while still providing adequate oxygen to meet the patient’s needs.
For ambulatory use, the patient fills the H-300 Portable with liquid oxygen from the
Reservoir. When full, it holds slightly less than one pound (454 grams) of liquid oxygen
and weighs a total of 3.6 pounds (1.6 kg). A spring scale type contents indicator shows
the amount of liquid oxygen remaining in the unit.
For oxygen needs in the home, the patient engages the H-300 Portable to a flexible oxygen
supply tube that connects to the oxygen outlet of the Reservoir. The H-300 Portable
provides the patient with the same familiar oxygen delivery interface but the patient now
breathes gaseous oxygen directly from the Reservoir. This makes the H-300 Portable about
one pound (454 grams) lighter since it contains no liquid oxygen. Also, evaporative
oxygen losses from the Reservoir are greatly reduced since the patient breathes the gas
that normally builds pressure and vents through the Reservoir relief valve.
Two HELiOS Reservoir models are available in both 36 liter and 46 liter sizes. The Standard
H-36 and H-46 Reservoirs provide the patient with both a means to fill a HELiOS Portable
with liquid oxygen and a source of regulated 22 psig (152 kPa) gaseous oxygen for
breathing with the H-300 Portable or other external 22 psig (152 kPa) flow-metering device.
The Universal U-36 and U-46 Reservoirs also provide the patient with both a means to fill
a HELiOS Portable with liquid oxygen and a source of 22 psig (152 kPa) gaseous oxygen.
In addition, lower internal pressure in the Universal Reservoir permits the filling of Puritan
1-2 -
Introduction to the HELiOS System
B-701693-00 Rev. C
HELiOS Liquid Oxygen System Technical Manual
Bennett Companion portables as well. At the push of a button, an electronic contents
indicator measures and displays the amount of liquid oxygen remaining in the Reservoir.
The H-36 Reservoir, when used with an H-300 Portable, typically yields a four week liquid
oxygen delivery cycle with a 2 L/min patient. The U-36 Reservoir, when used with an H300 Portable, typically yields almost a four week liquid oxygen delivery cycle with a 2 L/
min patient.
The H-46 Reservoir, when used with an H-300 Portable, can yield a six week liquid oxygen
delivery cycle with a 2 L/min patient. The U-46 Reservoir, when used with an H-300
Portable, can yield a five week liquid oxygen delivery cycle with a 2 L/min patient.
1.2 SERIAL NUMBER IDENTIFICATION
Each HELiOS Reservoir and H-300 Portable are identified by a unique eight-digit serial
number. The number contains the year and calendar day of manufacture, as well as the
unit’s production number for that day (Figure 1-2). The Standard Reservoir serial number
is etched into the upper head of the cryogenic container and is visible when the moisture
container is removed (Figure 1-3). The Universal Reservoir serial number is etched into a
Reservoir handle bracket. The H-300 Portable serial number is etched into the cryogenic
container and is visible through the contents indicator window in the rear side cover
(Figure 1-4).
Serial Number
99 295 116
{
Designates
Year
Figure 1-2: Serial Number Scheme
Designates
Sequential Day of
Year (Jan 1 = 001,
Dec 31 = 365)
{
{
Designates
Number of Specific
Unit Produced
that day
Serial Number
Figure 1-3: Figure 1-4:
Standard Reservoir Serial Number Location H-300 Serial Number Location
B-701693-00 Rev. C
Introduction to the HELiOS System
- 1-3
1.3 SAFETY PRECAUTIONS
This section covers precautions and safe practices as they apply to facilities and personnel involved in servicing medical oxygen equipment. These precautions are divided into
three main areas: cold safety, expansion safety, and fire safety. To ensure reliability and
safety, the service techniques, work area, and equipment used in the storage, service, and
handling of this system must be of the highest standard. Refer to the HELiOS Operating
Instructions (B-701641-00) for additional safety precautions regarding the use of this
equipment.
1.3.1 Cold Safety
Extreme cold hazard. Liquid oxygen is extremely cold
!
(-297°F/-183°C) and will freeze skin on contact. Never
touch liquid oxygen or frosted parts.
Extreme cold hazard. Liquid oxygen can spill if the
!
Reservoir is tipped over. Keep the Reservoir upright
at all times. Secure the Reservoir when transporting
to prevent accidental tip-over.
HELiOS Liquid Oxygen System Technical Manual
WARNING
WARNING
WARNING
Extreme cold hazard. Liquid oxygen can spill from the
!
Portable. Always keep the Portable in one of the
following positions; upright, flat on its back or any
position in between.
WARNING
Extreme cold hazard. Forceful discharge of liquid
!
oxygen possible if fill connector freezes open upon
disengagement. Always dry fill connectors with clean,
dry lint free cloth before fill.
Recommended Protective Clothing:
• Heavily insulated gloves (for example, cryogenic or welding gloves). Never use
gloves that are contaminated with grease or oil when working with liquid oxygen.
• Protective face shield and goggles.
• Long sleeve shirt. Wear natural fibers such as cotton or wool. Avoid synthetic
materials such as polyester or rayon.
• Long pants. Never wear pants with cuffs. Liquid oxygen may become trapped and
cause serious burns to skin. Wear natural fibers such as cotton or wool. Avoid
synthetic materials such as polyester or rayon.
• Protective cryogenic or welding apron.
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Introduction to the HELiOS System
B-701693-00 Rev. A
HELiOS Liquid Oxygen System Technical Manual
Important Facts:
• Direct exposure to liquid oxygen or exposure to its vented gas or components cooled
by liquid oxygen can result in frostbite. If frostbite occurs, seek medical attention
immediately.
1.3.2 Expansion Safety
Explosive hazard. Extreme high pressure can rupture
!
container or plumbing components. Be sure specified
pressure relief devices are present, in the proper
location, and functioning properly.
Important Facts:
• Liquid oxygen at atmospheric pressure expands at a ratio of approximately 860:1 (at 0
psig) when vaporizing into a gas (Figure 1-5). This can occur very rapidly when
exposed to the heat in the atmosphere.
• Ensure that the specified pressure relief devices are present and functioning properly
in any device that will contain liquid oxygen. This includes transfer hose assemblies.
WARNING
LOX
1860
Figure 1-5: Liquid Oxygen Expansion Ratio
1.3.3 Fire Safety
Concentrated Oxygen. Increased risk of fire.
!
• Do not smoke or keep burning tobacco near this equipment.
Death or injury may occur.
• Keep flammable materials away from this equipment. Oils,
grease, including facial creams and petroleum jelly, asphalt, and
synthetic fibers ignite easily and burn rapidly in the presence of concentrated oxygen. If needed, use only specified oxygen compatible
lubricants as directed.
• Keep oxygen equipment away from open flames. Keep Reservoir and Portable units at least five feet away from equipment such as
furnaces, water heaters, and stoves that may contain open flames.
GA S
WARNING
B-701693-00 Rev. A
Introduction to the HELiOS System
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HELiOS Liquid Oxygen System Technical Manual
WARNING
Concentrated Oxygen. Increased risk of fire.
!
• Keep oxygen equipment away from electrical appliances. Keep
Reservoir and Portable units at least five feet from electrical appliances
that may cause heat or sparks.
• Keep oxygen equipment in a well-ventilated area at all times.
These units periodically release small amounts of oxygen gas that
must be ventilated to prevent buildup. Do not store liquid oxygen
equipment in a car trunk, closet, or other confined area. Do not place
bags, blankets, draperies, or other fabrics over the equipment when it
contains liquid oxygen.
• Do not place the Portable unit under clothing. These units normally
vent oxygen. Placing a Portable unit under clothing may saturate fabrics
with oxygen and cause them to burn rapidly if exposed to sparks or
flame. It may take several hours for oxygen levels in the fabric to return
to normal.
Important Facts:
The possibility of fire exists when the combination of a fuel, source of ignition, and oxygen
is present (Figure 1-6). High concentrations of oxygen (air is approximately 21% oxygen)
greatly enhance the possibility of combustion.
• Obtain all replacement parts for medical oxygen equipment from the manufacturer.
• Before servicing, clean all tools that come into contact with the oxygen system.
• Use only recommended oxygen compatible cleaning and leak detection products.
• Keep the Reservoir upright at all times. Secure liquid oxygen equipment when transporting to prevent accidental tipover and spillage.
• If a liquid oxygen spill occurs indoors, open doors and windows to ventilate the area.
Avoid sources of ignition and do not walk on or roll equipment over the affected area.
• Any clothing or porous material that is splashed with liquid oxygen or otherwise absorbs
high concentrations of oxygen should be removed and aired for at least one hour away
from any source of ignition.
1-6 -
Introduction to the HELiOS System
Figure 1-6: Combustion Triangle
B-701693-00 Rev. A
HELiOS Liquid Oxygen System Technical Manual
1.4 LIQUID OXYGEN SATURATION PRINCIPLES
Oxygen, in its normal state, is a colorless, tasteless, and odorless gas that is non-flammable, although it greatly accelerates combustion in high concentrations. It constitutes
about 21% of the Earth’s atmosphere by volume. Oxygen in higher concentrations is
medically beneficial to patients suffering from certain respiratory diseases.
Oxygen, like most gases, will condense into a liquid with an increase in pressure or
decrease in temperature. As a liquid, oxygen is pale blue in color and is about 860 times as
dense as its gaseous form. At atmospheric pressure (14.7 psia), oxygen condenses into its
liquid form at a temperature of about -297°F (-184°C). Liquid oxygen (LOX) is an efficient
form of oxygen to meet a patient’s portable, ambulatory oxygen needs. A volume of liquid
oxygen, when vaporized, yields about 860 volumes of gaseous oxygen (Figure 1-5). As
you can see, a relatively small volume of liquid oxygen provides a much larger volume of
gaseous oxygen for a patient to use.
In medical liquid oxygen systems, liquid oxygen, and the gaseous oxygen resulting from
its vaporization or boiling, is stored under pressure. The elevated pressure, typically 22
psig (152 kPa), enables oxygen to flow to the patient at a selected, prescribed rate. To
sustain this oxygen flow to the patient, the liquid oxygen must be in a state that allows
vaporization to readily occur. In other words, the liquid oxygen must be in a state of
saturation. Let’s take a look at what liquid saturation is all about.
A saturated liquid is one that absorbs the maximum amount of heat possible at a given
pressure without vaporizing into a gas. If additional heat is added, the saturated liquid
begins to vaporize (boil) while remaining at a constant temperature until all of the liquid is
vaporized. A common example of a saturated liquid is water at its boiling point of 212°F
(100°C) at sea level. The constant addition of heat to the boiling water does not cause it to
become hotter, but instead causes part of the liquid water to turn to water vapor
(Figure 1-7).
Figure 1-7: Saturated (Boiling) Water at Sea Level
The saturation (boiling) point of a liquid depends not only on temperature but also on
pressure. If the pressure in a container of saturated liquid increases, the temperature
required for saturation to occur will also increase. This leaves the liquid unsaturated, that
is, capable of accepting more heat before it will boil (Figure 1-8).
B-701693-00 Rev. A
Introduction to the HELiOS System
- 1-7
HELiOS Liquid Oxygen System Technical Manual
Figure 1-8: Saturated (Boiling) Water at Higher Pressure
If the pressure in a container of saturated liquid decreases, the temperature required for
saturation to occur will decrease. This leaves the liquid “super saturated” or too warm.
When this occurs, rapid boiling and vaporizing of some of the liquid occurs. The rapid
boiling and evaporation of the liquid dissipates the excessive heat until the remaining
liquid cools down to the new saturation temperature associated with the decreased
pressure (Figure 1-9).
Oxygen, which is normally a gas at atmospheric pressure, changes into liquid form when it
is cooled to about -297°F (-183°C) at atmospheric pressure. It is saturated at this temperature (and pressure) which means it will remain a liquid as long as no additional heat is
added. However, the large quantity of heat present in the atmosphere constantly enters
the liquid oxygen and causes it to boil and vaporize back into a gas. Since it is virtually
impossible to keep all of the heat in the atmosphere from entering the liquid oxygen,
constant boiling and vaporization occurs.
Now when liquid oxygen is placed in a closed container, the vaporizing gas is trapped and
begins to build pressure. As pressure increases above atmospheric pressure, more heat is
needed for boiling to occur at the higher pressure. The heat that is constantly available
from the atmosphere warms the liquid to a higher temperature where boiling again occurs.
The vaporizing gas builds pressure and the process continues. As the pressure on liquid
oxygen builds, the related saturation temperature of the liquid increases proportionally
(Figure 1-10).
1-8 -
Introduction to the HELiOS System
Figure 1-9: Saturated (Boiling) Water at Lower Pressure
B-701693-00 Rev. A
HELiOS Liquid Oxygen System Technical Manual
It is important to maintain liquid oxygen saturation (boiling) at the specified operating
pressure of the HELiOS system. As an oxygen flow demand is put on the system, a slight
decrease in pressure occurs due to oxygen withdrawal. The saturated liquid oxygen in the
system vaporizes enough gaseous oxygen to maintain system operating pressure. This
ensures proper oxygen flow to the patient. If the liquid oxygen saturation temperature is
too low, the corresponding lower saturation pressure causes low oxygen flows to the
patient.
Figure 1-10: Liquid Oxygen Saturation Curve
1.5 PRESSURE FITTINGS AND CONNECTIONS
The HELiOS liquid oxygen system uses aluminum tubing compression fittings, tapered
pipe thread (NPT) fittings, and flexible tube barbed fittings. Proper make-up and service of
these pressure fittings is essential to leak-free operation.
1.5.1 Compression Fitting Makeup
The compression fittings used in the HELiOS system consist of a fitting body, tube,
ferrule, and nut (Figure 1-11). These fittings typically connect the aluminum tubing to
other components in the system. In a properly made-up compression fitting, sealing
occurs at two points: between the ferrule and the fitting body; and between the ferrule
and the tube.
Figure 1-11: Compression Fitting
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HELiOS Liquid Oxygen System Technical Manual
Perform the following steps to make up a new compression fitting:
1. Inspect the tube end. The tube end should be cut square and the outside surface of
the tube should be free of scratches or other marks at least one inch (25 mm) back
from the tube end. Lightly buff the tube end with Scotch-Brite or fine emery paper to
remove any surface marks.
2. Insert the tube and make sure it is aligned squarely in the fitting body.
3. Make sure the tube end is bottomed against the tube stop in the fitting body. This is
necessary to prevent movement of the tube while the nut forces the ferrule to grip the
tube and create a seal.
4. Never permit the fitting body to rotate during make-up; use two wrenches. Always
hold the fitting body with a wrench while tightening the tube nut.
5. Always turn the tube nut the prescribed amount. With the tube against the tube stop
in the fitting body, tighten the tube nut finger-tight (Figure 1-12). For ¼-in. diameter
tubing, tighten the nut an additional 1¼ turns from finger-tight with a wrench. For
1/8-in. diameter tubing, tighten the nut an additional ¾ turn from finger-tight with a
wrench.
1
/
4-in. Tubing
1
/
8-in. Tubing
1
/
1
4 turn from
finger-tight
Figure 1-12: Compression Fitting Makeup
3
/
4 turn from
finger-tight
1.5.2 Compression Fitting Remake
When disassembling a compression fitting, mark the tube nut and the fitting body before
disassembly. To remake the connection, tighten the tube nut until the marks realign. A
slight torque increase indicates the ferrule is being re-sprung into sealing position. After
several remakes, it may become necessary to advance the tube nut slightly past the
original position. This advance need only be 15° to 20° (¼ to 1/3 of a hex flat). In situations where the existing tube with seated ferrule is to be used with a replacement fitting
body, tighten the tube nut until a slight torque increase indicates the ferrule is being resprung into sealing position. Advance the nut an additional 15° to 20°.
1.5.3 Compression Fitting Troubleshooting
Most leaks in compression fittings are the result of improper connections. Typically the
tube is either not aligned squarely in the fitting body before connection or the tube is not
secured against the stop during connection. In addition, overtightening may also result in
a cracked fitting body that will leak.
To check for leaks, pressurize the system and use an oxygen-compatible leak detector
(such as SNOOP) on the fitting. If bubbles form at the back of the nut between the nut and
the tube, you probably did not get a seal between the ferrule and the tube; misalignment
may be the cause. However, check the tube itself for a scratch or seam running along the
tube, allowing a leak to occur.
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Introduction to the HELiOS System
B-701693-00 Rev. A
HELiOS Liquid Oxygen System Technical Manual
If the leak detector forms bubbles at the front of the nut, between it and the fitting body,
then the leak is probably between the ferrule and the fitting’s tapered seat. Check this area
for imbedded dirt or cracks.
1.5.4 Tapered Pipe Thread (NPT) Makeup
Some components used in the HELiOS system have tapered pipe (NPT) threads (Figure 1-
13). NPT threads create leak-tight connections provided a thread sealant (such as Teflon
tape) is used on the threads.
Figure 1-13: NPT Fittings (National Pipe Tapered)
Perform the following steps when making up a NPT fitting:
1. Remove old thread sealant if present. Use a wire brush to remove sealant or dirt from
male and female threads of NPT fittings. Make sure contaminants do not drop into the
fittings during the cleaning process.
2. Apply thread sealant to the male threads. Apply two to three layers of Teflon tape to
the male threads starting two threads back from the end (Figure 1-14). Wrap the
Teflon tape clockwise (as viewed from thread end of fitting) to prevent unraveling
when installing the fitting.
Figure 1-14: Applying Teflon Tape
3. Assemble the fittings and tighten until snug. Since NPT fittings have tapered threads,
torque requirements increase as the fittings are tightened. Tighten NPT fittings until
you achieve a good seal (usually a minimum of three turns). Do not overtighten NPT
fittings. Overtightening may result in cracked fittings.
Note: Some NPT connections require alignment of one of the fittings in a certain
orientation. Do not back out the fitting if you are unable to achieve the proper
orientation as you tighten the fitting. This will typically result in a leak.
Disassemble and remake the fittings instead.
B-701693-00 Rev. A
Introduction to the HELiOS System
- 1-11
HELiOS Liquid Oxygen System Technical Manual
1.5.5 Tapered Pipe Thread Troubleshooting
Leaks at NPT fittings are usually the result of improper application of thread sealant or
loosening of the fittings. To check for leaks, pressurize the system and use an oxygencompatible leak detector (such as SNOOP) on the fitting threads. If bubbles appear,
disassemble the fittings and remake (Section 1.5.4, Tapered Pipe Thread Makeup).
1.5.6 Flexible Tube Barbed Fitting Makeup
Flexible tube barbed fittings are used in the HELiOS system to create leak-tight pressure
connections where flexible tubes connect to components. The outside diameter of the
barb is slightly larger than the inside diameter of the flexible tubing. This creates an
interference fit sufficient to seal and secure the connection.
Perform the following steps to install a flexible tube on a barbed fitting:
1. Inspect the tube end. The tube end should be cut square and should be free of cuts
or tears. If there is an impression of the barb in the tube, cut the end of the tube off (if
the tube length is sufficient) or replace the tube.
2. Where required, install a brass collar on the tube so that the large end of the collar is
toward the barbed fitting.
3. Push the tube squarely onto the barb as far as possible.
4. Push the brass collar (if present) onto the tube end connected to the barbed fitting.
1.5.7 Flexible Tube Removal from Barbed Fitting
Perform the following steps to remove the flexible tube from a
barbed fitting:
1. Use a small flat-blade screwdriver to carefully back the brass collar (when used) off of
the barbed fitting.
2. Work the screwdriver between the end of the tube and the fitting body.
3. Simultaneously pull on the tube and pry the end of the tube back from the barb. Use
care to prevent damage to the barbed fittings.
1.6 RECOMMENDED TOOLS, TEST EQUIPMENT, AND SERVICE MATERIALS
Hand tools, test equipment, and materials used to properly service the HELiOS system
and maintain it in operable condition are listed in Table 1-1. If hand tools, test equipment,
and materials other than those specified in Table 1-1 are used, their functional characteristics such as quality and accuracy must be equal to, or better than, those specified in
the table. Tools, test equipment, and materials should be cleaned for oxygen service.
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Introduction to the HELiOS System
B-701693-00 Rev. A
HELiOS Liquid Oxygen System Technical Manual
TABLE 1-1. RECOMMENDED TOOLS, TEST EQUIPMENT & SERVICE MATERIALS
Hex Key (Allen) Wrench – 3/32 in., 7/64 in., 5/32 in. Local Source
Open End Wrenches – ¼ in., ½ in., 9/16 in., 5/8 in.,
¾ in., 7/8 in., 1 in. Local Source
Adjustable Wrench – 10 in. Local Source
Pliers – 10 in. arc-joint, needlenose Local Source
Screwdrivers – medium flat blade, small flat blade,
medium Phillips blade, Torx T 10 Local Source
Side Cutters Local Source
Vent Wrench (Figure 1-15) Puritan-Bennett No. B-775182-00
PB Fill Connector Cartridge Installation
Tools (Figure 1-16)
• Inner Plunger Puritan-Bennett No. B-775392-00
• Male Connector Sleeve Puritan-Bennett No. B-775393-00
• Female Connector Sleeve Puritan-Bennett No. B-775394-00
Micro Bar Clamp American Tool 6-in.
Clamp or Hemostat for 1/16 in. Flexible Tubing Local Source
Dental Pick Local Source
TOOLS
Quick-Grip #53006
TEST EQUIPMENT
Portable Test Fixture (Figure 1-17) Puritan-Bennett No. B-778202-00
Test Pressure Gauge w/Tubing Adapter –
0-100 psig/0-690 kPa (Figure 1-18) Puritan-Bennett No. B-701732-00
Reservoir Pressurizing Fixture –
0-100 psig/0-690 kPa (Figure 1-19) Puritan-Bennett No. B-701731-00
HELiOS Reservoir Unit w/Liquid Oxygen Puritan-Bennett No. B-701652-00
Saturation at 24 psig (166 kPa) minimum or
(for Portable testing) Puritan-Bennett No. B-701653-00
Adjustable 0-100 psig (0-690 kPa)
gaseous oxygen source Local Source
Oxygen Compatible Leak Detector (Snoop) Puritan-Bennett No. B-775272-00
Calibrated Weight Scale – 0-200 lbs (0-91 kg)
with .02 lb (9.1 g) maximum graduation, accuracy, A&D Engineering Model FW
and repeatability 100-KA1 ( or equivalent)
Calibrated Test Flowmeters Brooks Instrument Division,
• 0-3 L/min oxygen, 1% full scale Emerson Electric Co.,
• 0-40 L/min oxygen, 1% full scale Hatfield, PA
0-10 L/min, 22 psig external flow control valve Puritan-Bennett No. B-701655-00
B-701693-00 Rev. B
Introduction to the HELiOS System
- 1-13
HELiOS Liquid Oxygen System Technical Manual
OPTIONAL (PORTABLE ONLY)
Magnehelic Gauge Assembly – 0-25 in. H2O
(Figure 1-20) Puritan-Bennett No. B-778208-00
Jet/Venturi Assembly (Figure 1-21) Puritan-Bennett No. B-778210-00
Jet/Venturi Puritan-Bennett No. B-778213-00
SERVICE MATERIALS
Dual Lumen Cannula (Portable) Puritan-Bennett No. B-778057-00 (7 ft./2.1 m)
Oxygen DISS Wye Outlet Adapter w/ Bay Corp., Westlake, OH-Part No. YO-124DV;
Demand Check Valve Outlets Precision Medical, Inc., Northhampton, PA-
Part No. 7211
Size 00 Rubber Stopper VWR Scientific, Batavia, IL-Part No. 59590-084
Tee Connector – 3/16 in. I.D. Tubing Puritan-Bennett No. B-778211-00
3/16 in. (5 mm) I.D. Oxygen Tubing Puritan-Bennett No. B-778214-00 (4 ft./1.2 m)
Tie Wrap, 4-in./10 cm Puritan-Bennett No. B-775091-00
Lubricant - Krytox 240 AC
Fluorinated Grease (DuPont) Puritan-Bennett No. B-775239-00
Isopropyl Alcohol Local Source
Thread Sealant – 3/16 in. Teflon Tape Local Source
Cloth – Lint Free Local Source
HELiOS Oxygen Supply Tube Coupler Puritan-Bennett No. B-701686-00
1-14 -
Introduction to the HELiOS System
Figure 1-15: Vent Wrench
B-775182-00
Figure 1-16: Fill Connector Cartridge Installation Tools
B-775392-00 (I), B-775393-00 (M), B-775394-00 (F)
B-701693-00 Rev. B
HELiOS Liquid Oxygen System Technical Manual
Figure 1-17: Portable Test Fixture
B-778202-00
Portable Adapter
P/N B-778203-00
Baseplate
P/N B-778204-00
100 psig Pressure Gauge
P/N B-776004-00
Small Tie Wrap
P/N B-775091-00
Figure 1-18: Test Pressure Gauge w/Tubing Adapter
P/N B-775269-00
B-701732-00
Tubing Barb Adaptor
Disposable Tubing
Barb Adaptor
P/N B-776945-00
Tubing - 3/16 in. I.D. x 4 ft.
(5 mm I.D. x 1.2 m)
P/N B-778214-00
B-701693-00 Rev. B
Introduction to the HELiOS System
- 1-15
High Pressure Port
Bracket
P/N B-776594-00
Low Pressure Port
HELiOS Liquid Oxygen System Technical Manual
Figure 1-19: Reservoir Pressurizing Fixture
B-701731-00
Figure 1-20: Magnehelic Gauge Assembly
B-778208-00
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B-701693-00 Rev. B
HELiOS Liquid Oxygen System Technical Manual
Bleed
Port
P/N B-778211-00
Restrictor
.024 in. (.61 mm)
P/N B-778212-00
Tee
Small- Tie Wrap
P/N B-775091-00
Bleed
Port
Jet/Venturi
P/N B-778213-00
Tubing - 3/16 in. I.D. x 4 ft.
(5 mm I.D. x 1.2 mm)
P/N B-778214-00
Small-Tie Wrap
P/N B-775091-00
Figure 1-21: Jet/Venturi Assembly
B-778210-00
Disposable Tubing
Barb Adapter
P/N B-776945-00
1.7 TEST EQUIPMENT CALIBRATION
Periodically calibrate test equipment (pressure gauges, weight scales, flowmeters, etc.) to
ensure the reliable operation of the HELiOS liquid oxygen system. Use your prior experience to determine calibration frequency for test equipment. Using a default six-month
schedule is typically acceptable; however, check test equipment with a high usage rate
once a month. Once you have begun using the piece of test equipment, you may adjust
the calibration schedule. If, for example, you begin calibrating your test pressure gauge
every six months and it is repeatedly out of calibration when you check it, you should test
calibration more frequently. Eventually, you should determine an interval where your
equipment is in calibration each time you check it.
Before using any piece of test equipment that has been dropped or mishandled, always
perform a calibration check. Test instruments that are used to test the performance of
HELiOS equipment can be sent to an accredited calibration lab for calibration testing.
Another option is to keep a calibrated master test instrument (pressure gauge, flowmeter,
etc.) on site as a reference to check your field test instruments. Look in the telephone
yellow pages under Calibration for the location of an accredited calibration lab. An
example of an accredited calibration lab is:
PTS Calibrations LLC, 5603 W. Raymond St., Suite 1, Indianapolis, IN 46241
Telephone: 317-487-2378
Refer to ISO 10012-1 (Quality Assurance Requirements for Measuring Equipment) for
additional information.
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- 1-17
1.8 ACCESSORIES
Accessories for the HELiOS Reservoir and Portable units are listed in Table 1-2.
Table 1-2
Description Part Number Location
1. Van Companion Assembly (Delivery Cart) B-775462-00 Figure 1-22
2. Roller base Assembly B-701537-00 Figure 1-23
HELiOS Liquid Oxygen System Technical Manual
HELiOS ACCESSORIES
• Strap and Buckle Assembly B-775477-00 Figure 1-22, #1
• Faspin B-775478-00 Figure 1-22, #2
• Pads (2 Required) B-775476-00 Figure 1-22, #3
• Wear Strips (2 Required) B-776169-00 Figure 1-22, #4
• Caster (5 Required) B-701536-00 Figure 1-23, #1
3. Transfer Line Assembly (6 ft./1.8 m) B-775288-00 Figure 1-24
Transfer Line Assembly (10 ft./3 m) B-775289-00 Figure 1-24
• Transfer Hose (6 ft./1.8 m) B-775280-00 Figure 1-24, #1
• Transfer Hose (10 ft./3 m) B-775281-00 Figure 1-24, #1
• Source Adapter Assembly B-775279-00 Figure 1-24, #2
• Relief Valve (150 psi/1035 kPa) B-775273-00 Figure 1-24, #3
• Source Adapter B-775313-00 Figure 1-24, #4
• Fill Adapter Assembly B-775278-00 Figure 1-24, #5
• Fill Adapter B-775312-00 Figure 1-24, #6
• Fill Adapter Seal B-775262-00 Figure 1-24, #7
• Female Fill Connector B-775264-00 Figure 1-24, #8
• Union, 5/8-in. Flare (2/Transfer Line) B-775277-00 Figure 1-24, #9
4. Universal Adapter Kit B-775461-00 Figure 1-25
• Male Flare Adapter B-775342-00 Figure 1-25, #1
• Female Flare Adapter B-775418-00 Figure 1-25, #2
• PB Fill Connector/Tee Assembly B-775276-00 Figure 1-25, #3
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HELiOS Liquid Oxygen System Technical Manual
Table 1-2 (cont.)
Description Part Number Location
5. Shipping Carton, HELiOS 36 B-701690-00 Not Shown
• Corner Post (4 Required) B-702011-00 Not Shown
Shipping Carton, HELiOS 46 B-701691-00 Not Shown
• Corner Post (4 Required) B-702011-00 Not Shown
Shipping Carton, HELiOS 300 Portable B-701688-00 Not Shown
• Insert (1 Required) B-701689-00 Not Shown
6. Dual Lumen Cannula (7 ft./2.1 m) B-778057-00 Figure 1-26
(Sense and delivery in both nostrils)
Dual Lumen Cannula (5 ft./1.5 m) 6-778058-00 Figure 1-26
(Sense and delivery in both nostrils)
HELiOS ACCESSORIES
Dual Lumen Cannula (3 ft./0.9 m) B-701511-00 Figure 1-26
(Sense and delivery in both nostrils)
Dual Lumen Cannula (7 ft./2.1 m) B-701930-00 Figure 1-26
(Sense and delivery in separate nostrils)
Dual Lumen Cannula (4 ft./1.2 m) B-701931-00 Figure 1-26
(Sense and delivery in separate nostrils)
7. Oxygen Supply Tube Assy. (50 ft./15.2 m) B-701656-00 Figure 1-27
8. Oxygen Supply Extension Tube
(50 ft./15.2 m) B-701432-00 Not Shown
9. Reservoir Fill Connector Cover B-777095-00 Figure 1-28
10. H-300 Portable Belt Pack B-701654-00 Not Shown
11. HELiOS Operating Instructions B-701641-00 Not Shown
12. 0-10 L/min Flow Control Valve, B-701655-00 Not Shown
22 PSI (152 kPa)
B-701693-00 Rev. B
Introduction to the HELiOS System
- 1-19
HELiOS Liquid Oxygen System Technical Manual
3
4
2
1
Figure 1-22: Van Companion Delivery Cart
Figure 1-23: Roller Base
1
1-20 -
Introduction to the HELiOS System
B-701693-00 Rev. A
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