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Medical Gas Supply System
Item
Description
1
Tail Pipe
2
Medical Gas Cylinder
3
Tailpipe Pin Index Connection to Cylinder
4
Bodok Seal
4.6.4
Replace the empty cylinder and reconnect the
tailpipes. The empty cylinder status on the screen and
status icon will automatically return to normal.
4.6.5
Repeat steps 4.6.3 & 4.6.4 for all the empty
cylinders once at a time till all have been replaced.
NOTE - To reduce potential gas leakage while changing
empty cylinders, ensure all cylinders have been changed
before opening the cylinder valves.
4.6.6
Slowly open the cylinder valves (see section 4.10
- Cylinder operation) for all the newly replaced cylinders.
4.6.7
Repeat this section each time when the running
bank drops to the changeover pressure until the main
supply is fully operational.
4.7
Procedure for Manual Cylinder
Bank Changeover.
4.7.1
To manually cycle the cylinder banks, press the
left or right bank switch , see figure 30.
4.7.2
Change empty cylinders as per section 4.6
Figure 30 - Manual Cylinder Bank Selection.
Set
Left Bank
Running
NOTE - If the selected cylinder bank is in low pressure,
the selection will not be activated.
4.8
Procedure for Operation During
Power Failure.
4.8.1
Refer to hospital policy for actions regarding the
medical gas supply during the event of electrical power
failure.
4.8.2
During power failure the electronic controls will
not be in operation, but cylinder banks can automatically
changeover due to the balanced mechanical design.
4.8.3
all alarm outputs will be active to bring attention to the
alarm system, and the solenoid valve on the gas control
line will switch to left bank as primary bank by default.
NOTE - If the medical gas alarm system is also inoperable
the manifold should always be monitored locally as
remote status monitoring is lost.
4.8.4
is the primary source, with full supply pressure and flow
continuity. The right bank supply will take over when the
left bank is below 4.8 bar. Once the primary left bank is
refilled, it will remain as the primary source. Upon power
restoration, the device reverts to left bank of cylinders.
Once a changeover has occurred, and the cylinders have
been replaced, the system automatically resets alarm
conditions.
4.8.5
during power failure event, so when the left bank is
empty, the cylinders should be replaced immediately.
4.8.6
pressure reservation before the left bank cylinder is
replaced to ensure the flow continuity.
4.8.7
determine the cylinder pressure status.
Figure 31 - Cylinder Pressure Gauges.
Set
Right Bank
Running
27
When the power is lost to the manifold control,
In the event of power failure, the left bank supply
As the left bank will always be the primary bank
The right bank cylinders should have enough
Monitor the bank gauges shown in figure 31 to
1
Item
Description
1
Left Cylinder Pressure Gauge
2
Right Cylinder Pressure Gauge
4.8.8
Changing empty cylinders is as per section 4.6
CAUTION! To ensure continuous supply of the
medical gas, NEVER have both line isolation valves (item
5, figure 1) closed at the same time. NEVER close both
side of the intermediate three way isolation valve (item
3, figure 1).
2
4109992485.00
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