Parker AQUA DUO - A455C, Technical Manual

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Fresh Water Flush Check Valve (CV-1 & CV-2) : Prevents Feed Water from entering the
freshwater line.
Figure 2.16: Check Valve (CV-1 & CV-2) Assembly
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Fresh Water Flush Carbon Filter : Removes chlorine (if present) in the Fresh Water, prior to
flowing through the RO Membrane Element.
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Rinse Clean Valves (optional) : Mounted separately on singular individual plates or together on a
double plate. The Rinse Clean Inlet Valve (used in conjunction with the Rinse Clean Outlet Valve)
simplifies the storage and cleaning procedures by allowing the Operator to turn a valve, rather
than disconnect a hose. Also used for manual Fresh Water Flush if the Automatic Fresh Water
Flush System is not installed. Note that the Rinse Clean Valves are available on single or double
valve mounting plates
5) Booster Pump (Two Included with System) : Provides Inlet water pressure for system. Mount boost pump
below the water line. Booster Pumps can also be mounted on Media Filter Assembly KIT.
Figure 2.17: Boost Pump Assembly (BP-1 & BP-2)