GE Aestiva 5 Service Manual

2 Cleaning and Sterilization
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Disassemble the patient path
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.
Step 4
Disconnect the cable and remove the 
O
2 sensor.
AA.96p.009
AA.96p.010
AA.96p.011
AA.96p013, 014 

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Step 5
Completely loosen the thumbscrew on 
the breathing circuit module. 
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.96p016
AA.96p017
AA.96p018
AA.96p020 

2 Cleaning and Sterilization
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Autoclave assemblies marked 134°C. Refer to the Section “Clean and 
sterilize” for complete instructions. To assemble the circuit refer to the Setup 
section.
Step 9
Push the release button and remove 
the bellows assembly (pull up).
Step 10
Remove the main manifold.
AA.96p021, 23
AA.96p024 

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Canister disassembly
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To prevent damage, pull the release handle forward. Then turn the handle 
Step 1
Pull the release forward.
Step 2
Turn the release clockwise.
Step 3
Pull down and out on the canisters.
wZ
AA.96p026
AA.96p028
AA.96p029 

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Continue with the next section or go to "Clean and sterilize". To assemble, 
refer to the Setup section.
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.
AA.96p053
AA.96p054 

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Disassemble the scavenging path
These parts send exhaled gas to the disposal system, not the patient. 
Exhalation valve
Complete the basic disassembly 
procedure.
Push in the latches and pull out the 
exhalation valve.
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.23.089
AB.23.090 

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How to clean and disinfect the flow sensors
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Do not autoclave plastic flow sensors. 
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Do not use high-pressure gas, or brushes to clean the flow sensors.
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Do not use cleaning solvents that are not approved for use with 
Polycarbonates (e.g. CIDEX Plus).
 
CIDEX sterilizationBoth Datex-Ohmeda and the manufacturer of CIDEX (Johnson & Johnson) 
have tested this procedure.
•CIDEX must be 14...

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Figure 2-3 • Steps 2-8
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) 

2 Cleaning and Sterilization
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These instructions assume that the system has the optional CO2 bypass 
feature...

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44 4 4
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.
Note: Optionally, the bypass...