Parker Pure Water Series, Installation Operation & Maintenance

Page: 46 / 175

MAINTENANCE
Step 8: Gradually turn the High Pressure Bypass Valve (Black Valve) to NORMAL/RO position. The pressure
gauge should steadily rise to a reading of 800 psi.
NOTE: When the High Pressure Bypass valve is closed, the salinity of the initial permeate produced will
be relatively high and will probably be enough to activate the salinity alarm. Salinity will reduce
in 3-5 minutes.
Step 9:
Observe the system pressure on the High Pressure Gauge. During RO production, the indicated
pressure should be at 800 psi. If the pressure reading is not at 800 psi, adjust the nut on top of the
pressure regulator valve (Refer to Figure 4.2) using a wrench until the reading reaches 800 psi.
NOTE: If the RO unit is used for other than seawater purification (in freshwater or brackish water
applications), reduce pressure as necessary to achieve product flow no greater than 120% of
design flow to avoid membrane damage.
RO pressure production should NEVER EXCEED 950 psi, doing so risks damage to RO unit
which would VOID factory warranty.
NOTE:
At initial start-up of RO unit, PRESS DUMP on the Water Quality Monitor to keep the product water
diverted from the water storage tank. IF the unit is filled with preservative storage solution, water
must be diverted AT LEAST 10 MINUTES to clear preservative solution from system
.
Step 10: Check the RO unit for water leakage periodically at the initial start-up. Observe Product Flow meter.
Record the operating data after 3 and 24 hours of operation (use the startup sheet provided on page V).
NOTE:
For Remote Control Operation:
The initial start-up procedure must be followed FIRST prior to use of remote. Once initial start-
up steps are performed, the necessary valve (HP Bypass Valve and Freshwater Flush Valve)
positions would be set. Subsequent starts/stops can be controlled from the remote, if equipped,
by leaving the black Bypass Valve closed all the time.
4.2 TO SHUT DOWN UNIT
Step 1:
Turn the High Pressure Bypass Valve (Black Valve) to CLEANING POSITION while the RO unit is
running. This will release the high pressure within the RO system.
Master Control Center (or via Remote Control Center)
Step 2: Press the HP PUMP pushbutton to stop the High Pressure Pump.
Master Control Center (or via Remote Control Center)
Step 3: Press the LP PUMP pushbutton to stop the Low Pressure Pump.
Step 4:
Then turn switch OFF on your breaker at the main breaker panel.
The RO unit may be left in this “stand by” con
dition with the seawater for one or two days. If the RO unit
will be out of service for extended time periods, please refer to the Maintenance section of this manual
for flushing or preservation procedures.