AirSep AS-20 Instruction Manual page 46

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4) Close the oxygen outlet valve on the oxygen receiver. (This valve controls
oxygen flow from the oxygen receiver to your application.)
5) Observe the AUTO/MAN switch. When the amber indicator light on the switch
shuts off to indicate when the oxygen generator stops cycling, note the
pressure on the OXYGEN RECEIVER PRESSURE gauge. If the oxygen
generator continues to cycle and the amber indicator light remains illuminated
when the oxygen receiver pressure exceeds the pressure switch maximum
pressure of 380-415 kPa (55-60 psig), proceed to step 8. If the oxygen
generator stops cycling at approximately the pressure switch maximum
pressure, proceed to step 9. Otherwise, proceed to step 6.
6) Turn the high pressure adjustment screw ¼-turn clockwise to increase the
pressure setting.
7) Repeat step 5.
8) Turn the high pressure adjustment screw ¼-turn counterclockwise to
decrease the pressure setting.
9) Open the oxygen vent valve on the oxygen receiver.
10) Observe the AUTO/MAN switch on the oxygen generator control panel. When
the amber indicator light on the switch illuminates to indicate when the
oxygen generator starts to cycle, note the pressure on the OXYGEN
RECEIVER PRESSURE gauge. If the oxygen generator does not start to
cycle when the oxygen pressure in the oxygen receiver decreases below the
pressure switch minimum pressure of 310 kPa (45 psig), proceed to step 13.
If the oxygen generator starts to cycle while the oxygen pressure remains
greater than the pressure switch minimum pressure, proceed to step 11. If
the oxygen generator starts to cycle at approximately the pressure switch
minimum pressure, the pressure switch is adjusted properly. Proceed to step
14.
11) Turn the low pressure adjustment screw ¼-turn counterclockwise to decrease
the pressure setting.
12) Repeat step 10.
13) Slowly turn the low adjustment screw clockwise in ¼-turn increments until the
oxygen generator starts to cycle and the amber indicator light on the
AUTO/MAN switch illuminates.
14) Fully close the oxygen vent valve on the oxygen receiver.
7-8
If the oxygen generator stops cycling after five minutes,
proceed to step 9. If the oxygen generator does not stop
cycling after five minutes, repeat step 8.
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AirSep Corporation
AS-20—1000 Instruction Manual