
O2ptima Manual –User Guide – Rev 1.2 Page 19 of 26
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Asseer & Associates, 5609 Power Road, Ottawa, Ontario, K1G 3N4
every 12 months or at any time excessive corrosion is seen on either end of the wiring
harness connectors.
3.8. Solenoid Valve
The solenoid valve selected for the O2ptima CCR should provide years of trouble free
diving. That said, like any other mechanical components with moving parts, the solenoid
valve will degrade with time and is severely impacted if subjected to any internal moisture
or condensation.
The O2ptima CCR has been designed is such a way that the user can easily replace the
solenoid valve.
3.9. ADV (Auto-Diluent Valve)
The ADV provides breathing loop gas upon demand by integrating a second stage regulator
into the loop. The ADV should be opened after every 10 hours of diving to rinse out any
residue accumulating on the diaphragm and internal components. The lever mechanism
and pivot should be serviced on a yearly basis.
Adjustment for the ADV can be found at the end of the pivot lever mechanism. When
assembling/disassembling the ADV ensure that the inner rod is held stable by hand or tool
to prevent damaging the inner key way.
IMPORTANT! ALWAYS HAVE AN INLINE SHUT OFF VALVE WHEN USING THE
ADV
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