46 AS-D+—AS-P Series Instruction Manual
AirSep Corporation
6.5 DEPRESSURIZING THE OXYGEN GENERATOR
The oxygen generator operates with pressurized air and oxygen.
To perform maintenance on the unit safely, fully depressurize the
oxygen generator components as described in the procedure in
this section.
1. Shut down the oxygen generator and disconnect the power supply.
(See Section 5.6 – Shutdown.)
2. Fully close the manual feed # 2 valve (V-2) and the manual product
valve (V- 3).
3. Connect the oxygen generator to the power supply.
4. Press the ‘START’ icon on the ‘Main System Control Screen’
5. Set the oxygen generator to manual mode.
6. Allow the unit to operate until gas no longer exhausts from the muffler
and ‘Parameters and Output Screen’ indicate approx. zero pressure.
To fully depressurize the oxygen generator components, follow the
steps 2-7 to depressurize the lter assembly as described in section
6.3.
If the pressure gauges do not decrease to zero, shutdown the unit
and call the AirSep Corporation Commercial Products Division.
7. If the unit is depressurized, power down the unit if required and
proceed to perform the maintenance.
6.6 ADJUSTING THE FEED AIR REGULATOR
The feed air regulator may require re-adjustment after any maintenance is
performed. Please ensure that the feed air regulator setting is not changed during
re-adjustment.
Setting the feed air regulator to a value such that the maximum
oxygen generator bed pressure is 80 psig or more can cause severe
damage to the molecular sieve in the adsorbers which will not be
covered under AirSep’s warranty.