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REPLACEMENT PROCEDURES (continued)
*
4.10.24.23 Slowly open the N
*
4.10.24.24 The yellow O
4.10.24.25 Adjust the oxygen flow to 2 liters per minute.
4.10.24.26 Slowly open the N
*
4.10.24.27 The yellow O
4.10.24.28 Close the oxygen flow control valve. The nitrous oxide
4.10.24.29 The nitrous oxide flow should stop when the flow of
*
4.10.24.30 If the O
*
4.10.24.31 If the O
4.10.24.32 Close all cylinder valves except the O
4.10.24.33 Set the oxygen flow to 5 liters per min.
4.10.24.34 Open the other gas flow control valves to drain pressure
4.10.24.35 Close the O
4.10.24.36 Close the N
4.10.24.37 Reconnect the pipeline hoses.
4.10.24.38 Replace the rear cover of the vapor box.
4.10.24.39 Perform the PMS Procedure given in Section 6.
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O flow control valve.
2
/N
O FLOW RATIO lamp on the alarm
2
2
panel should light as soon as the ORMC limits the flow
of nitrous oxide.
O flow control valve.
2
/N
O FLOW RATIO lamp on the alarm
2
2
panel should light as soon as the ORMC limits the flow
of nitrous oxide.
flow should decrease proportionally, and the oxygen
concentration should remain between 21% and 29%
oxygen.
oxygen is between 200 and 300 ml per minute.
/N
O FLOW RATIO lamp turns off when the
2
2
nitrous oxide flow drops to between 100 and 200 ml per
minute, proceed to Step 4.10.24.32.
/N
O FLOW RATIO lamp does not turn off when
2
2
the nitrous oxide flow drops to between 100 and 200 ml
per minute, adjust the MPL switch until the O
FLOW RATIO lamp turns off.
from the system.
cylinder valve and the O
2
Press the O
Flush valve to drain oxygen pressure from
2
the system.
O flow control valve.
2
4-36
NM3
/N
O
2
2
valve.
2
flow control valve.
2
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