7
BC INFLATION USING THE POWER INFLATOR
With your Regulator connected to an appropriate cylinder, slowly open the cylinder valve to pressurize the
Regulator/Inflator system. Press the Power Inflator Button, located on the left side of the AIR XS II Mouth-
piece, until you hear air flowing into the BC. Minor compressions of the Power Inflator Button will initiate
airflow into the BC and allow small adjustments in buoyancy.
WARNING: If you depress the Power Inflator Button fully, the BC will inflate
rapidly. Be careful not to overinflate the BC during a dive causing an unwanted
rapid rise toward the surface.
Test the Power Inflator and Overpressure Relief Valve (OPV) prior to each dive to ensure they are function-
ing properly. Depress the Power Inflator until the BC fills completely, forcing the OPV in the upper (shoul-
der) unit to open. You will hear the sound of air venting from OPV, indicating that it is working properly.
While the BC is still inflated, listen for any undesired air leakage around the AIR XS II. The BC should stay
inflated until you deflate it manually.
BC DEFLATION USING THE RAPID EXHAUST VALVE (REV)
The Rapid Exhaust Valve (REV) is located inside the upper (shoulder) unit of the Inflator Assembly. It is con-
nected to the lower (power) unit by two Cables located inside the Corrugated Hose and coupled together
inside the Pull Connector.
The REV is operated by grasping the Pull Connector, or the lower (power) unit and pulling it down (away)
from the upper (shoulder) unit. The Cables pull the Exhaust Valve open, venting air from the BC through
the Vents of the upper unit of the Inflator Assembly.
The amount of air vented depends on how far open the Exhaust Valve is, the distance you
pull the inner Cable, and how long the Exhaust Valve is open. Short tugs vent small amounts
of air for minor changes in buoyancy, and a long pull will vent the entire BC in a matter of
seconds.
