GE Aestiva 5 Operation Manual
GE Healthcare
Aestiva/5
Operation Manual - Part 2
Software Revision 4.X
Setup, Cleaning, Maintenance, Troubleshooting
User Responsibility
w
CAUTION
This Product will perform in conformity with the description thereof contained in
this Operation 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.
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.
Aestiva, S/5, PSVPro, Tec 5, Tec 6
Datex-Ohmeda Inc.
Other brand names or product names used in this manual are trademarks or
registered trademarks of their respective holders.
and
Tec 7
are registered trademarks of
1/Introduction
Table of Contents
2/Cleaning and Sterilization
How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . 1-3
Maintenance summary and schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Operator maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Datex-Ohmeda approved service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Patient path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Scavenging path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Clean and sterilize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
To wash (by hand or machine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Autoclave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Special requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Assemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Disassemble the patient path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
i
3/Setup and Connections
Canister disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Disassemble the scavenging path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
How to clean and disinfect the flow sensors . . . . . . . . . . . . . . . . . . . . . . . .2-13
How to clean and sterilize the optional CO
bypass assembly . . . . . . . . . 2-15
2
Breathing system setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Canister setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Pneumatic and electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
How to install gas cylinders (high-pressure leak test) . . . . . . . . . . . . . . . .3-11
Cylinder yokes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
DIN connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
How to install the gooseneck lamp (12 V) . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
How to attach equipment to the top shelves . . . . . . . . . . . . . . . . . . . . . . .3-15
How to install equipment on the foldout shelf . . . . . . . . . . . . . . . . . . . . . .3-17
Installation notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18
1006-0939-000
i
Aestiva
4/User Maintenance
ii
Repair policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Manifold maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Expiratory valve maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Receiver maintenance (active gas scavenging only) . . . . . . . . . . . . . . . . . .4-8
Flow sensor maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Breathing circuit maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Bellows maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Bellows tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
5/Alarms and Troubleshooting
6/Illustrated Parts
sensor calibration - 21% O
O
2
sensor calibration - 100% O
O
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
2
Flow sensor calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
How to prevent water build-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
About alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Alphabetical list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Breathing system problems (no alarm) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Electrical problems (power failure, etc.) . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Pneumatic problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Breathing system parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Top level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Main manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Exhalation valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Bellows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
Test tools and system parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
7/Theory of Operation and Specifications
Ventilator Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
ii
1006-0939-000
Table of Contents
Breathing system schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Electrical block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Pneumatic circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Suction regulators (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
flowmeter (optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
O
2
Breathing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Breathing system specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-15
Pneumatic specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-17
Flow specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-18
iii
Index
Warranty
Electrical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
Electrical fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-20
Battery information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-20
Electro-magnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-20
Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-22
Ventilation operating specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
Aestiva ventilator accuracy data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-25
1006-0939-000
iii
Aestiva
iv
iv
1006-0939-000
1 Introduction
1-1
In this section
1006-0939-000
How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Maintenance summary and schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1-1
Aestiva
How to use this manual
This is part two of the Aestiva operation and maintenance manual. It tells you
how to:
• Remove and clean parts
OO
22
22
mm
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The second half of this section is a maintenance schedule.
The last section, troubleshooting, tells you what causes each alarm and what
you can do about it.
Use this manual together with Part 1, which includes the operating
instructions and preoperative checkout.
w
WARNING If an alarm occurs, safeguard the patient first, before
troubleshooting or repair procedures.
1-2
1006-0939-000
N
N
Symbols used in the manual or on the equipment
w
Warnings and
occur if you do not follow all instructions in this manual.
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. Read
and follow all warnings and cautions.
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:
Cautions tell you about dangerous conditions that can
w
1 Introduction
1-3
l
O
o
q
p
œ
†
~
x
On (power)
Not autoclavable
Í
Off (power)
Type B equipment
m
Standby
Type BF equipment
µ
Standby or preparatory state for part of
the equipment
“ON” only for part of the equipment
H
Type CF equipment
Caution, ISO 7000-0434
w
“OFF” only for part of the equipment
wW
Direct current
Alternating current Dangerous Voltage
Protective earth ground
Attention, refer to product
instructions, IEC 601-1
This way up
Earth ground
y
r
1006-0939-000
Electrical input Electrical output
Pneumatic inlet Pneumatic outlet
Frame or chassis ground
REF
Stock Number
1-3
Aestiva
å
Y
t
T
+
-
Alarm silence button
Equipotential Systems with this mark agree with
Variability Read top of float
Variability in steps Vacuum inlet
Plus, positive polarity Suction bottle outlet
Minus, negative polarity
SN
O2+
Serial Number
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 DatexOhmeda’s Quality Systems.
O2 Flush button
P
N
ˆ
z
Z
Lamp, lighting, illumination Cylinder
Movement in one direction Isolation transformer
Movement in two directions Linkage system
Lock Risk of Explosion
Unlock Low pressure leak test
1-4
1006-0939-000
1 Introduction
134°C
R
u
q
t
Autoclavable
Bag position/ manual ventilation
Mechanical ventilation
r
Open drain (remove liquid)
Close drain
U
Inspiratory flow
Expiratory flow
Q
O2 sensor connection End case
The primary regulator is set to pressure
less than 345 kPa.
European Union Representative
The primary regulator is set to
pressure less than 414 kPa.
1-5
1006-0939-000 1-5
Aestiva
Maintenance summary and schedule
These schedules show the minimum frequency. You will have to service the
equipment more frequently if you use it:
• In unusual conditions (dirty gas supplies, high temperature, high humidity,
etc.).
• More frequently than normal.
Operator maintenance
Examine all components and do the maintenance procedures more frequently
if necessary.
Minimum
Frequency
Maintenance
Daily • Clean the external surfaces.
• 21% O
calibration (circuit O2 sensor).
2
• Flow sensor calibration
Two weeks • Drain the vaporizers and discard the agent. This is not
necessary for Tec 6 vaporizers.
Monthly • 100% O
calibration (cIrcuit O2 sensor).
2
• Put Krytox (or a lubricant approved for use with 100%
) on all tee handle threads.
O
2
During cleaning
and setup
• Inspect the parts for damage. Replace or repair as
necessary
Annually • Replace the external o-rings on the vaporizer ports.
As necessary • Install new cylinder gaskets on cylinder yokes.
• Replace the absorbent in the absorber.
• Drain the breathing system.
• Drain the breathing circuit module.
1
• Drain the overflow trap on the optional suction
regulator.
• Replace the circuit O
• Replace the disposable flow sensors (plastic)
sensor.
2
2
• Replace the autoclavable flow sensors (metal)3.
• Replace the receiver filter (active gas scavenging only).
1. This is included in the preoperative test procedure.
2. Under typical use the sensor meets specifications for 3 months
3. Under typical use the sensor meets specifications for 1 year.
1-6 1006-0939-000
Datex-Ohmeda approved
service
1 Introduction
Minimum
Frequency Maintenance
6 months Have an approved service person do the service tests
and scheduled service maintenance.
1-7
1006-0939-000 1-7
Aestiva
1-8 1006-0939-000
WWAAAARRRRNNNNIIIINNNNGGGG
w WW
2 Cleaning and Sterilization
2-1
Obey applicable safety precautions:
• During the cleaning of the liquid collecting tray, 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.
• Read the material data sheet for each cleaning agent.
• Read the operation and maintenance manual for all sterilization equipment.
• Wear gloves and safety glasses. A damaged O
sensor can leak and cause
2
burns (contains potassium hydroxide).
• Do not breathe the fumes.
CCAAAAUUUUTTTTIIIIOOOONNNN
w CC
To prevent damage:
• Refer to the manufacturer’s data if you have questions about a cleaning agent.
• Do not use organic, halogenated, or petroleum based solvents, anesthetic
agents, glass cleaners, acetone, or other harsh cleaning agents.
• Do not use abrasive cleaning agents (such as steel wool, silver polish or
cleanser).
• Keep all electronic parts away from liquids.
• Do not permit liquid to go into the equipment housings.
• Do not soak synthetic rubber parts for more than 15 minutes. Swelling or faster
aging can occur.
• Only autoclave parts that are marked 134°C.
In this section Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Clean and sterilize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Disassemble the patient path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Canister disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Disassemble the scavenging path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
How to clean and disinfect the flow sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
How to clean and sterilize the optional CO
1006-0939-000 2-1
bypass assembly . . . . . . . . . . . . . . . . . 2-15
2
Aestiva
Summary
2-2
Patient path
The parts in Figure 2-1 send exhaled gas back to the patient. They may require
more frequent cleaning/sterilization than parts in Figure 2-2. Refer to your
hospital’s infection control policy.
Autoclave (134°C) or
wash (mild detergent pH <10.5)
AB.23.003
*
If plastic, refer to cleaning/disinfection
procedure. If metal, autoclave (134°C)
Wipe with a damp cloth.
*
Figure 2-1 • These parts return
exhaled
gas to the patient
AB.23.079
2-2 1006-0939-000
Scavenging path
AB.23.003
2 Cleaning and Sterilization
Autoclave (134°C) or
wash (mild detergent pH <10.5)
2-3
Figure 2-2 • These parts do not send gas back to the patient
AB.23.080
1006-0939-000 2-3
Aestiva
Clean and sterilize
2-4
To wash (by hand or
machine)
The Disassembly part of this section tells you how to remove parts for
cleaning.
Patient path
AB.23.085
Scavenging path
AB.23.083
Use a mild detergent (pH <10.5). Then, rinse and dry completely. All parts
except the O
User maintenance tells you how to disassemble parts and clean inside them if
necessary.
2-4 1006-0939-000
sensor, and flow sensors can be washed.
2
Autoclave
Metal Only
2 Cleaning and Sterilization
Patient path
2-5
AB.23.087
Upside down
AB.23.086
Scavenging path
AB.23.083
Autoclave at 134°C. Inspect the parts for deterioration. The User Maintenance
section tells you how to do this.
1006-0939-000 2-5
2-6
Aestiva
Special requirements
*
AB.23.088
* Hang the bellows upside down
(extended) to dry. If not, the
convolutions can stick together.
•To clean the circuit O2 sensor, wipe it with a damp cloth. Do not put the sensor
in liquid.
• To clean/disinfect metal/or plastic flow sensors, use the flow sensor
cleaning procedure. Do not get the connectors wet.
• Disassemble the bellows before you wash it. If not, it will take a very long time
to dry. Hang the bellows upside down to dry.
• Assemble the bellows before you autoclave. Autoclave the bellows upside
down.
WWAAAARRRRNNNNIIIINNNNGGGG
w WW
CCAAAAUUUUTTTTIIIIOOOONNNN
w CC
Assemble
Do not use talc, zinc stearate, calcium carbonate, corn starch or
equivalent materials to prevent tackiness. These materials can go
into the patient’s lungs and airways and cause irritation or injury.
Do not put the circuit O2 sensor or flow sensor connector in liquid.
w Do not autoclave the Circuit O
sensor or the plastic flow sensors.
2
w Do not clean the interior surfaces of the flow sensors. Use a damp
on external surfaces only.
cloth
The Setup section tells you how to assemble the breathing system.
Inspect all parts for deterioration. Replace them if necessary.
The Preoperative tests in Part 1 (the first half of this manual), tell you how to
test the system for correct operation.
2-6 1006-0939-000
Disassemble the patient path
2 Cleaning and Sterilization
Step 1
Open the access panel.
Step 2
Push up on the latch located under the
flow sensor module.
Step 3
Remove the flow sensor module. You
will feel some resistance. Continue to
pull.
2-7
AA.96p.009
AA.96p.010
AA.96p.011
Step 4
Disconnect the cable and remove the
O
sensor.
2
AA.96p013, 014
1006-0939-000 2-7
2-8
Aestiva
Step 5
Completely loosen the thumbscrew on
the breathing circuit module.
AA.96p016
Step 6
Remove the module. You will feel some
resistance. Continue to pull.
Step 7
Push the metal button to the first stop.
Pull out the bag arm.
Step 8
Push the metal button to the
second stop and open the top panel.
AA.96p017
AA.96p018
AA.96p020
2-8 1006-0939-000
Step 9
Push the release button and remove
the bellows assembly (pull up).
Step 10
Remove the main manifold.
2 Cleaning and Sterilization
2-9
AA.96p021, 23
AA.96p024
Autoclave assemblies marked 134°C. Refer to the Section “Clean and
sterilize” for complete instructions. To assemble the circuit refer to the Setup
section.
1006-0939-000 2-9
Aestiva
Canister disassembly
2-10
w CCCCAAAAUUUUTTTTIIIIOOOONNNNTo prevent damage, pull the release handle forward. Then turn the handle
Step 1
Pull the release forward.
AA.96p026
wZ
Step 2
Turn the release clockwise.
AA.96p028
Step 3
Pull down and out on the canisters.
AA.96p029
2-10 1006-0939-000
Step 4
Push in the buttons on each side of the
top dish.
Step 5
Lift up the drain dish.
Remove the top dish and drain dish.
2 Cleaning and Sterilization
2-11
AA.96p053
AA.96p054
Continue with the next section or go to "Clean and sterilize". To assemble,
refer to the Setup section.
1006-0939-000 2-11
Aestiva
Disassemble the scavenging path
These parts send exhaled gas to the disposal system, not the patient.
2-12
Exhalation valve
Complete the basic disassembly
procedure.
Push in the latches and pull out the
exhalation valve.
AB.23.089
Scavenging reservoir
Loosen the knob and remove the rear
cover.
Pull the reservoir up and to the rear.
Twist and pull down to remove the tube.
AB.23.090
2-12 1006-0939-000
How to clean and disinfect the flow sensors
wwwwCCCCAAAAUUUUTTTTIIIIOOOONNNNDo not autoclave plastic flow sensors.
wwwwDo not use high-pressure gas, or brushes to clean the flow sensors.
wwwwDo not use cleaning solvents that are not approved for use with
Polycarbonates (e.g. CIDEX Plus).
CIDEX sterilization Both Datex-Ohmeda and the manufacturer of CIDEX (Johnson & Johnson)
have tested this procedure.
• CIDEX must be 14 day mixture, with activator vial REF REORDER # 2245
• One liter of this solution cleans four (4) flow sensors
2 Cleaning and Sterilization
2-13
Procedure (Figure 2-3) 1. Remove the flow sensor module from the absorber. Refer to “Disassemble
the patient path” in this section.
2. Remove the flow sensors from the module.
• Push in the latch.
• Pull off the cover.
• Remove the flow sensors.
3. Submerge the flow sensor and tubes in activated CIDEX solution. Keep the
connector dry.
4. Keep the solution in the tubes for the sterilization period.
5. Submerge the flow sensor and tubes in distilled water. Again, do not get the
connector wet.
6. Rinse as indicated in CIDEX instructions.
7. Do steps 5 and 6 again to remove all CIDEX.
8. COMPLETELY dry the flow sensor and the tubes before you use the sensor.
Use a dry syringe, or connect vacuum or pressure to remove all liquid from the
sensor (sensor, tubes, and connector):
•Minimum time: 1 min
•Maximum vacuum: 30 in Hg
•Maximum flow: 10 L/min flow
•Maximum pressure: 345 kPa (50 psi).
1006-0939-000 2-13
2-14
Aestiva
Step 2
Steps 3 and 4
Steps 5, 6 and 7
Step 8
Dry for > 1 min with these precautions:
• Maximum vacuum 30 in Hg
• Maximum flow 10 L/min
• Maximum pressure 345 kPa (50 psi)
Figure 2-3 • Steps 2-8
2-14 1006-0939-000
2 Cleaning and Sterilization
HHHHoooowwww ttttoooo cccclllleeeeaaaannnn aaaannnndddd sssstttteeeerrrriiiilllliiiizzzzeeee tttthhhheeee ooooppppttttiiiioooonnnnaaaallll CCCCOO
These instructions assume that the system has the optional CO2 bypass
feature installed.
11
SSSStttteeeepppp 11
Remove the absorber canisters. (Also described in “Canister disassembly” in this section.)
a. Pull the canister release handle forward.
w CCCCAAAAUUUUTTTTIIIIOOOONN
b. Turn the release handle clockwise.
c. Lift out the canisters.
Note: The canisters should drop under their own weight when released. If they do not, clean and lubricate the pins in
the drain dish and sockets in the base.
22
SSSStttteeeepppp 22
Release the CO2 bypass assembly by
pushing both buttons (one on each side
of the assembly).
NN
To prevent damage, pull the canister release handle forward before turning the
handle.
OO
bbbbyyyyppppaaaassssssss aaaasssssssseeeemmmmbbbbllllyy
22
22
yy
2-15
33
SSSStttteeeepppp 33
Pull down on the CO2 bypass assembly
(a) to remove it and lift the drain dish
(b) up.
a
b
1006-0939-000 2-15
2-16
Aestiva
44
SSSStttteeeepppp 44
Clean and sterilize the bypass
assembly:
a. Immerse the assembly into a
solution of mild detergent and
water.
b. Agitate the assembly in the
solution while repeatedly
actuating and releasing the
plate.
c. Rinse the assembly by
immersing it in clean water and
agitating it again with the plate
actuated and released.
d. Autoclave the assembly at
134°C.
e. Cool about 40 minutes at room
temperature.
a
Note: Optionally, the bypass assembly can be divided into two smaller sections for easier cleaning by releasing the
top clamp (a) and pulling the hose from the assembly. When reassembling, reattach the hose to the bottom part of the
assembly. Secure the hose with the clamp and pinch the clamp one notch past finger-tight with pliers.
55
SSSStttteeeepppp 55
Reinstall the bypass assembly:
a. Reinstall the drain dish.
b. Insert the bypass assembly.
c. Push back and adjust to locate
the access holes for the top
ports.
d. Push the buttons on each side of
the assembly and push the
assembly up; both buttons
should snap into place.
e. Pull down on the assembly to
make sure it is locked into place.
c
b
a
d
2-16 1006-0939-000
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