Amron 8225-HP, Инструкция по эксплуатации

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OPERATING PROCEDURES
LOW PRESSURE BREATHING AIR (Primary Supply) 8.1
Low Pressure Compressor (Primary supply), High Pressure (Backup). In this mode of operation
the divers breathing air is being supplied by an LP compressor, the HP Supply is use as a back-up
supply. Having the HP supply as a backup does not eliminate the requirement for a bailout source
of air.
In the event the LP air source fails, it is a simple matter to switch over to HP Air. Turn “ON” the HP
source by opening the HP-1 valve. Check the diver’s air supply pressure.
HIGH PRESSURE BREATHING AIR (Primary Supply) 8.2
In this mode of operation the divers breathing air is being supplied by via high pressure breathing
air source. This could include SCUBA tanks (singles or twins), high pressure storage cylinders, or
a bank of high-pressure storage cylinders.
Caution!
Maximum input pressure limit of 3000 PSI when using standard CGA850 yokes.
Maximum input pressure limit of 4500 PSI when using optional 300 Bar DIN adapters.
The High Pressure breathing system is designed to allow the rotation of bottles as they are
consumed. Operate the system using a single bottle until the bottle pressure has dropped to
approximately 500 PSI, then switch to the next bottle. Repeat this procedure alternating between
HP-1 and HP-2, changing bottles as they are used. The HP input system has check valves, which
prevent back-flow between the bottles. This facilitates switching between bottles.
Example:
If you have two bottles connected to the system and you are using bottle HP-1, bottle HP-2 is
“OFF”, when HP-1 reaches 500 PSI, you may switch to HP-2 by opening the valve for HP-2. The
system will draw air from the higher of the two sources, HP-2. You can then turn HP-1 “OFF”, and
change the bottle connected to source HP-1. This procedure ensures an uninterrupted supply of
air to the diver.
After turning HP-1 off, turn the bottle valve off, open bleed valve on the yoke and bleed the
pressure. Release the yoke and replace the empty bottle with a full bottle. Close the bleed valve
and turn Scuba cylinder on and verify the bottle is full.
Another method of changing bottles is to leave both valves on the system in the “ON” position.
Use the SCUBA bottle valves as the ON/OFF control for selecting which bottle is in use. This
reduces the number of valves, which must be open and closed for each change of bottles. If you
use this procedure, you should monetarily open the new bottle and check the gauge to ensure the
bottle is full, then close bottle to prevent the system from using air from both bottles at the same
time.
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