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5.4
ADV (Automatic Diluent Valve)
The JJ-CCR Rebreather is supplied with an ADV. The ADV works
in a similar way to a 2nd stage and supplies additional diluent
to the breathing circuit if necessary. This is the case for example if considerable negative pressure exists in the breathing circuit. It is also possible to actuate the ADV manually by pressing
down on the membrane cap. The ADV does not require any
adjustment..
5.5
Manual supplemental oxygen valve
The manual supplemental oxygen valve feeds oxygen into the
breathing circuit. The longer the button is depressed, the more
oxygen is supplied to the breathing circuit. A light press of the
button results in a small quantity of oxygen being fed into the
circuit, whilst pushing down heavily on the button adds more oxygen. This facilitates very accurate adherence to the desired PPO2
when the Rebreather is operated in manual mode. It is possible to
remove the connection hose and turn the valve through 180 degrees, in order to connect an external gas supply.
For example: The oxygen tank is empty and you have a bailout system with oxygen or another gas and
now wish to manually feed this into the breathing circuit.
5.6
Manual supplemental diluent valve (optional)
A manual supplemental diluent valve is available as an option for
the JJ-CCR Rebreather. This valve enables the manual supply of
diluent into the breathing circuit. The longer the button is depressed, the more diluent is supplied to the breathing circuit. A
light press of the button results in a small quantity of diluent being
fed into the circuit, whilst pushing down heavily on the button
adds greater diluent. It is possible to remove the connection hose
and turn the valve through 180 degrees, in order to connect an
external gas supply.
Note: Without the manual supplemental diluent valve the diluent is fed into the breathing circuit via the
ADV (automatically or by means of manual activation).
5.7
DSV (Dive Surface Valve)
The JJ-CCR Rebreather is supplied with a DSV. The JJ-CCR DSV
is extremely compact and has a neutral weight in the water. Its
movement is very smooth and it is possible to switch between
open and closed using one hand. A retainer for the HUD is also
integrated into the DSV.
ATTENTION: Before connecting the breathing hose with the
DSV it is always necessary to check that both shutter valves are
functioning correctly. It is also necessary to ensure that the DSV
can be opened and closed with ease.
2014 JJ-CCR ApS – Version 2.00 / Revision 04
JJ- CCR ApS 2014
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