Oceanus
Page 14 2nd Edition, Rev. 0 Chg. 14
2.3.3 Purging the Compressor Unit.
Carbon Dioxide is naturally present in the atmosphere with an 350 - 400 ppm. The molecular sieve used
in the purifier for drying the breathing air is, as well as other capabilities, able to adsorb Carbon Dioxide
which is accumulated in cartridge. After shutdown of the compressor, adsorbed Carbon Dioxide may be
desorbed again due to the partial pressure decrease. The now free Carbon Dioxide then gets washed out
of the cartridge when the compressor is started again. Therefore to avoid the compressed breathing air
having increased levels of Carbon Dioxide, it is absolutely necessary to start the compressor according to
the procedures in Paragraph 2.2.
2.3.4 Bottle Filling Procedures
See Figure 2-1
^ WARNING
Do not attach bottles to 4350 psi (300 bar) units unless the bottle is rated for this pressure.
(Note pressure stamped on the tank neck)
^ WARNING
Never open the fill valve unless the bottle is connected to the fill hose. Whipping of an unrestrained hose
caused by high pressure air discharge can cause serious injury!.
^ CAUTION
The filling procedure should not be interrupted for more than 10 minutes to avoid increased Carbon
Dioxide levels in the air filling the bottle.
To Next Page
Loading...
