Datex-Ohmeda S/5 Aespire Assembly instructions

S/5 Aespire
User’s Reference Manual—Part 2
Setup, Cleaning and Sterilization, Maintenance and Troubleshooting

User Responsibility
This Product will perform in conformity with the description thereof contained
in this User’s Reference manual and accompanying labels and/or inserts,
when assembled, operated, maintained, and repaired in accordance with the
instructions provided. This Product must be checked periodically. A defective
Product should not be used. Parts that are broken, missing, plainly worn,
distorted, or contaminated should be replaced immediately. Should repair
or replacement become necessary, Datex-Ohmeda recommends that a
telephonic or written request for service advice be made to the nearest
Datex-Ohmeda Customer Service Center. This Product or any of its parts
should not be repaired other than in accordance with written instructions
provided by Datex-Ohmeda and by Datex-Ohmeda trained personnel.
The Product must not be altered without the prior written approval of
Datex-Ohmeda. The user of this Product shall have the sole responsibility
for any malfunction which results from improper use, faulty maintenance,
improper repair, damage, or alteration by anyone other than Datex-Ohmeda.
w CAUTION U.S. Federal law restricts this device to sale by or on the order of
a licensed medical practitioner. Outside the U.S.A., check local
laws for any restriction that may apply.
Datex-Ohmeda products have unit serial numbers with coded logic which
indicates a product group code, the year of manufacture, and a sequential
unit number for identification.
AAA F 12345
This alpha character indicates the year of product
manufacture and when the serial number was
assigned; “D” = 2000, “E” = 2001, “F” = 2002, etc.
“I” and “O” are not used.
S/5 Aespire, Link-25, Disposable Multi Absorber, Reusable Multi
Absorber, 7100 Ventilator, Tec 6 Plus, and Tec 7 are registered trademarks
of Datex-Ohmeda Inc.
Other brand names or product names used in this manual are trademarks or
registered trademarks of their respective holders.

1009-0308-000
v
Symbols used in the manual or on the equipment
w WARNINGS and w CAUTIONS tell you about dangerous conditions that
can occur if you do not follow all instructions in this manual. Read and follow
all warnings and cautions.
WARNINGS tell about a condition that can cause injury to the operator or the
patient.
CAUTIONS tell about a condition that can cause damage to the equipment.
A Note provides additional information to clarify a statement in text.
An Important statement is similar to a Note, but provides a comment of
greater emphasis.
Other symbols replace words on the equipment or in Datex-Ohmeda manuals.
No one device or manual uses all of the symbols. These symbols include:
øøøø
On (power) ÍÍ
ÍÍ
Not autoclavable
O
Off (power) mm
mm
Type B equipment
o
Standby µµ
µµ
Type BF equipment
q
Standby or preparatory state for part of the
equipment
HH
HH
Type CF equipment
p
“ON” only for part of the equipment ww
ww
Caution, ISO 7000-0434
œ
“OFF” only for part of the equipment ww
wwWW WW
Attention, refer to product
instructions, IEC 601-1.
†
Direct current This way is up.
∏
Alternating current ππ
ππ
Dangerous Voltage
x
Protective earth ground ≈≈
≈≈
Input
y
Earth ground Output
r
Frame or chassis ground REF Stock Number
å
Alarm silence button SS
SSNN NN
Serial Number
Y
Equipotential
R
Bag position/ manual ventilation
t
Variability Read top of float
N N

S/5 Aespire
vi
1009-0308-000
T
Variability in steps Vacuum inlet
++
++
Plus, positive polarity Suction bottle outlet
--
--
Minus, negative polarity
OO
OO
22
22
++
++
O
2
Flush button
P
Lamp, lighting, illumination Cylinder
N
Movement in one direction Isolation transformer
ˆMovement in two directions Low pressure leak test
zLock rMechanical ventilation
ZUnlock UClose drain
11
1133 3344 44°CC CC Autoclavable QExpiratory flow
uOpen drain (remove liquid) Alarm silence touch key
qInspiratory flow Menu touch key
tO2sensor connection Alarm silence touch key
(Tec 6)
Volume alarms On/Off touch key End case touch key

Table of Contents
1009-0308-000 vii
Systems with this mark agree with the
European Council Directive (93/42/EEC) for
Medical Devices when they are used as
specified in their Operation and Maintenance
Manuals. The xxxx is the certification number
of the Notified Body used by Datex-Ohmeda’s
Quality Systems.
European Union Representative
XXXX

S/5 Aespire
viii 1009-0308-000

1009-0308-000 i
Table of Contents
Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . . . v
1 Setup and Connections
Canister setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
When to change the absorbent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Removing a canister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Reusable Multi Absorber canister filling . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Pneumatic and electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
How to install gas cylinders (high pressure leak test) . . . . . . . . . . . . . . . . . . 1-9
Pin indexed cylinder yokes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
DIN connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Installation notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
How to attach equipment to the top shelf . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
2 Cleaning and Sterilization
Breathing system cleanable parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Special requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
How to clean and disinfect the flow sensors . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
CIDEX sterilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Remove the breathing system bag hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Remove the breathing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Disassemble the breathing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Disassemble the Bellows assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Assemble the Bellows assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Bellows assembly tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Assemble the breathing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18
Install the breathing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22
Remove the AGSS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23
Remove the AGSS receiver filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24

S/5 Aespire
ii 1009-0308-000
Absorber canister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
Mechanical cleaning in washer or washer-disinfector . . . . . . . . . . . .2-26
Manual cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26
High level disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26
3 User Maintenance
Repair policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Maintenance summary and schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
User maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Datex-Ohmeda approved service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Breathing system maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
O2sensor replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
O2sensor calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
21% O2sensor calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
100% O2sensor calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Paw sensor calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
Flow sensor zeroing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
How to prevent water build-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
4 Alarms and Troubleshooting
About alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Alphabetical list of alarm messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Breathing system problems (no alarm) . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Electrical problems (power failure, etc.) . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Pneumatic problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Alarm settings range and default values . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
5 Parts
Bag arm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Breathing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Flow sensor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Breathing circuit module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Absorbent canister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Exhalation valve assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Bag-to-vent switch assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
APL valve assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
AGSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Test tools and system parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Table of Contents
1009-0308-000 iii
6 Specifications and Theory of Operation
System pneumatic circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Gas supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
O2flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Air and N2O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Mixed gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
System specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Pneumatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Electrical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Battery information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Guidance and manufacturer's declaration -
electromagnetic emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
Recommended separation distances . . . . . . . . . . . . . . . . . . . . . . . . .6-12
Figure 6-2 legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14
Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Casters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Drawers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Ventilator display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Breathing system specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-16
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-16
Gas scavenging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-17
Ventilator theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-19
Ventilation operating specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
Ventilator accuracy data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21
Delivery accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
Monitoring accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23

S/5 Aespire
iv 1009-0308-000
Suction regulators (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25
Venturi suction regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25
Continuous suction regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25
Auxiliary O2flowmeter (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25
Warranty

1009-0308-000 1-1
1 Setup and Connections
In this section Canister setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Pneumatic and electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
How to install gas cylinders (high pressure leak test) . . . . . . . . . . . . . . . . . . 1-9
Installation notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
How to attach equipment to the top shelf . . . . . . . . . . . . . . . . . . . . . . . . . .1-12

S/5 Aespire
1-2 1009-0308-000
Important Datex-Ohmeda strongly recommends that you use O2monitoring with this
equipment. Refer to local standards for mandatory monitoring.
Important European Standard EN 740 and International Standard IEC 60601-2-13/ISO
8835-1 require exhaled volume monitoring, O2monitoring (in accordance
with EN 12342, or ISO 7767) and CO2monitoring (in accordance with EN 864
or ISO 9918) be used with this equipment.
Important European Standard EN 740 and International Standard IEC 60601-2-13/ISO
8835-1 also require anesthetic agent monitoring (in accordance with ISO
11196) be used when anesthetic vaporizers are in use.
wWARNING Always make sure that the pipeline supply hoses and the
breathing circuit components are not toxic and will not:
• Cause an allergic reaction in the patient.
• React with the anesthetic gases or agent to produce
dangerous by-products.
wTo prevent incorrect values or equipment malfunction, use only
Datex-Ohmeda cables, hoses and tubing.
wDesiccated absorbers can be hazardous in the presence of
anesthetic agents. Adequate precautions should be taken to
ensure that soda lime in absorbers does not become desiccated.
Turn off all gases when finished using the system.
wThis system operates correctly at the electrical interference levels
of IEC 60601-1-2. Higher levels can cause nuisance alarms that
may stop mechanical ventilation.
wTo help prevent false alarms from devices with high-intensity
electrical fields:
• Keep the electrosurgical leads away from the breathing
system and the flow and oxygen sensors.
• Do not put the electrosurgical leads on any part of the
anesthesia system.
wTo protect the patient when electrosurgical equipment is used:
•Monitor the correct operation of all life support and monitoring
equipment.
• Keep backup manual ventilation available in case the
electrosurgical equipment prevents safe use of the ventilator.
• Do not use conductive masks or hoses.

1 Setup and Connections
1009-0308-000 1-3
Canister setup
wWARNING Obey applicable safety precautions:
• Do not use the absorber with chloroform or trichloroethylene.
• The Disposable Multi Absorber is a sealed unit which should
not be opened or refilled.
•Avoid skin or eye contact with the contents of the absorber. In
the event of skin or eye contact, immediately rinse the
affected area with water and seek medical assistance.
• Do not change the absorber during ventilation.
• Change absorbent often to prevent the build up of non-
metabolic gases when the system is not in use.
• Inspect absorbent color at the end of a case. During non-use,
absorbent can go back to the original color. Refer to the
absorbent labeling for more information about color changes.
• If the absorbent completely dries out, it may give off carbon
monoxide (CO) when exposed to anesthetic agents. For safety,
replace the absorbent.
• Always perform a breathing system leak test in the Bag Mode
after opening the absorber.
The absorber canister is available in two versions: Disposable Multi Absorber
and Reusable Multi Absorber. Both are removed and installed on the
breathing system in the same way.
Each canister holds 800 g of loose absorbent. Datex-Ohmeda recommends
Medisorb absorbent.
Both absorber versions should only be used with air, oxygen, nitrous oxide,
halothane, enflurane, isoflurane, desflurane and sevoflurane.
When to change the
absorbent
A gradual color change of the soda lime in the canister indicates absorption of
carbon dioxide. The color change of the soda lime is only a rough indicator.
Use carbon dioxide monitoring to determine when to change the canister.
Discard the absorbent when it has changed color. If left standing for several
hours, soda lime may regain its original color giving a misleading indication of
activity.
Read the canister instructions completely before using the product.

S/5 Aespire
1-4 1009-0308-000
Removing a canister The absorber canister is available in two versions: Reusable Multi Absorber
and Disposable Multi Absorber. Both are removed and installed on the
breathing system in the same way.
1. Disposable Multi Absorber canister
2. System canister release latch
3. System canister support pin
4. Canister handle
5. Absorbent
6. Reusable Multi Absorber canister
7. Water reservoir
Figure 1-1 • Canister
3
1
2
4
5
6
7

1 Setup and Connections
1009-0308-000 1-5
1. Hold the canister by the
handle and push on the
release latch (1) to unlock
the canister.
2. Remove the canister by
tilting it downward and off
the two support pins.
Reusable Multi
Absorber canister
filling
1. Turn the canister upside down and, using your thumbs, turn the cover
locking ring counterclockwise to unlock it.
2. Push up with your thumbs to release the seal.
3. Lift off the cover to remove it.
4. Remove and discard the foam filters
(1), the absorbent and any water in the
reservoir.
5. To clean and disinfect the canister, see “Absorber canister” in section 2
Cleaning and Sterilization.”
1
1

S/5 Aespire
1-6 1009-0308-000
wWARNING The filters must be in place to prevent dust and particles from
entering the breathing circuit.
6. When dry, place a new filter in the bottom of the canister, pour soda lime
into the canister and place a new filter over the soda lime before closing
and locking the cover. Wipe off any soda lime dust. Align the cover slots
with the canister locking tabs and press the cover down into place. Turn
the cover locking ring clockwise to lock the cover in place. Ensure cover is
properly sealed to prevent leaks and spillage. Alignment of the arrows
helps to indicate correct assembly.
7. When replacing the canister, make sure it is resting on both support pins
before latching it into place.
Pneumatic and electrical connections
wWARNING Equipment connected to the electrical outlets can increase the
leakage current. Regularly test the leakage current.
An optional isolation transformer kit is available to reduce total leakage
current.
wCAUTION Use only medical grade gas supplies. Other types of gas supplies
may contain water, oil, or other contaminants.
Mains inlet Arrow shows the mains power inlet and cord.
Outlets Labels show outlet voltage ratings and circuit breaker amp ratings.
The gas supplies also supply these devices through internal connections:

1 Setup and Connections
1009-0308-000 1-7
• The venturi suction regulator (optional)
• The auxiliary O2flowmeter (optional)
• Ventilator drive gas
Pipeline Inlets
Scavenging The scavenging assembly is located
below the bellows on the breathing
system. Adapters may be necessary
to interface to the scavenging
connector.
See section 3 “Operation and
Tutorial” in Part 1 of the User
Reference Manual for more
scavenging information.
Suction regulator (optional) NN
NNoo oottttee ee:::: Venturi regulators use
the system air or O2supply.
Standard regulators must be
connected to an external
vacuum supply.
1. External vacuum (non-
venturi)
2. Collection bottle
connection
3. Filter
4. Overflow safety trap
1
2
4
3

S/5 Aespire
1-8 1009-0308-000
Auxiliary O2 flowmeter
(optional)
1. Auxiliary O2outlet
2. Auxiliary Flow control
Serial port The ventilator has an RS-232C electrical interface. The RS-232C connector
allows serial input/output of commands and data.
RS-232C signal standards 15-pin Female D connector - Data
Communications Equipment
configuration (DCE):
• Pin 1 - Monitor On/Stby
• Pin 5 - Signal ground
• Pin 6 - Receive data
• Pin 9 - Monitor On/Stby Rtn
• Pin 13 - Transmit data
Sample gas return port Connect the Datex-Ohmeda sample gas
exhaust tube to the gas return port.
Exhaust gas will be directed to the
scavenging system as a factory default.
A qualified service representative can
reroute the exhaust gas back to the
breathing system.
wWARNING When returning sample gas to the breathing circuit, filtering may
be needed to reduce the risk of cross-contamination.
1
2

1 Setup and Connections
1009-0308-000 1-9
How to install gas cylinders (high pressure leak test)
Pin indexed cylinder
yokes
1. Find the cylinder wrench.
2. Close the cylinder valve on the cylinder to be replaced.
3. Fully loosen the tee handle.
4. Open the cylinder yoke.
5. Remove the used cylinder and the used gasket.
6. Remove the cap from the cylinder valve on the new cylinder.
7. Point the cylinder outlet away from all items that can be damaged by a
release of high pressure gas.
8. Quickly open and close the cylinder valve. This removes dirt from the
cylinder outlet.
wWARNING No gasket or more than one gasket can cause a leak.

S/5 Aespire
1-10 1009-0308-000
9. Install a new gasket.
10. Align the cylinder post with the index pins.
11. Close the yoke gate and tighten the tee handle.
12. Install a cylinder plug and gasket in all empty cylinder yokes.
13. Do a high pressure leak test:
• Disconnect pipeline supplies.
• Turn off the auxiliary O2flowmeter and venturi suction.
• Set the system switch to Standby.
• Open the cylinder.
• Record the cylinder pressure.
• Close the cylinder.
•If the air or oxygen cylinder pressure decreases more than 5000 kPa
(725 psi) in one minute, there is a significant leak.
• For N2O cylinders, a pressure decrease of 690 kPa (100 psi) in one
minute represents a significant leak.
To repair a leak:
• Install a new cylinder gasket and tighten the tee handle.
• Do this step again. If the leak continues, do not use the system.
wCAUTION Do not leave gas cylinder valves open if the pipeline supply is in
use. Cylinder supplies could be depleted, leaving an insufficient
reserve supply in case of pipeline failure.
DIN connections 1. Close the cylinder valve on the cylinder to be replaced.
2. Loosen the adapter and remove the cylinder.
3. Remove the cap from the cylinder valve on the new cylinder.
4. Point the cylinder outlet away from all items that can be damaged by a
release of high pressure gas.
5. Quickly open and close the cylinder valve. This removes dirt from the
cylinder outlet.
6. Install the cylinder.