AirSep AS-Q, Instruction Manual, Page: 43 / 198

AS-Q—AS-Z Series Instruction Manual 43
AirSep Corporation
6.4 SHUTDOWN
1. Stop the flow of product oxygen from the oxygen receiver to your
application by fully closing all manual valves between the outlet of the
oxygen receiver and the inlet to your application.
2. Make sure the AUTO/MANUAL icon on the HMI is set to AUTO.
3. Allow the oxygen receiver to repressurize fully. When the oxygen
receiver repressurizes, after a time delay of five cycles (approx. 15
min.), the oxygen generator stops cycling and enters the standby
mode.
Allow the oxygen generator to enter standby during shutdown
to ensure that the oxygen receiver contains oxygen at design
concentration during the subsequent restart and also ensure that
the unit shuts down at the proper point in the cycle. Failure to wait
until the oxygen generator enters standby results in temporarily
reduced concentration oxygen during the subsequent restart.
4. Press the STOP icon on the ‘Main System Control Screen’ or switch
off the remote on/off switch depending on the mode of the oxygen
generator to stop it.
5. Close the manual valve for the oxygen sample to the oxygen
concentration monitoring board.
6.5 NORMAL START-UP
To perform a normal start-up, the oxygen generator first requires a
shutdown as described in 6.4 — Shutdown. If the oxygen generator
shuts down due to a power loss or inadequate feed air pressure,
follow the procedure in Section 6.2 — Initial Start-Up to restart the
oxygen generator.
Start the supply of compressed air.
Make sure the MANUAL FEED #1 (V-1) and #2 (V-2) valves are fully open.
Make sure the INSTRUMENT AIR valve is fully open.
Make sure the ‘AUTO/MAN’ icon on the oxygen generator control panel is in the
AUTO mode.
When the feed air pressure exceeds the minimum feed air pressure specified in
this instruction manual, press the ‘START’ icon on the Main System Control Screen.
Fully open the MANUAL PRODUCT valve (V-3) and the product sample valve.