7.2.6 Filling operation
DANGER
Danger of poisoning due to pollutants in breathing air!
Inhaling harmful gases can be dangerous to life.
Make sure that the air drawn in is free from toxic gases, exhaust gases or sol-
vent vapours.
Do not fill breathing air cylinders with air from workrooms.
Do not fill breathing air cylinders if the air drawn has a CO component of more
than 25 ppmV (parts per million by volume). This is applicable even when us-
ing a CO filter cartridge.
The bound CO
2
is released from the filter cartridge again after a pressure drop
and an extended standstill period. For this reason, after a standstill period of
more than 6 hours, purge the compressor unit before connecting breathing air
cylinders, as described below.
Flushing the unit
CAUTION
Increased noise level!
Danger of acute hearing damage or noise-related hearing impairment!
Wear ear defenders.
1.
Switch on unit.
2.
Secure the filling valve, point it downwards and open it slowly.
3.
Release the compressed air into the atmosphere for 2 minutes.
4.
Close filling valve.
Ä
The unit is ready for the filling operation.
OPERATING MANUAL Commissioning and operation | 7
28.08.2019
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