Sea Recovery Aqua Whisper DX 1400-2, Руководство пользователя

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Aqua Whisper DX Modular 450-1800
Page 9-14
Troubelshooting
Solution : If Temperature or Salinity of the Feed
Water are the cause of the lower than normal
Product Water Flow rate this is normal and no
corrective action is required.
If the reason for lower than normal Product
Water Flow rate is due to fouled R.O. membrane
element(s) refer to R.O. Membrane Element
cleaning procedures in Section 7, or replace the
R.O. membrane element(s).
33) 3-WAY PRODUCT WATER DIVERSION
SOLENOID VALVE
The 3-Way Product Water Diversion Solenoid Valve,
Electric Solenoid Actuated, is energized by the System
Electronic Controller to the “Potable” position when the
system produces water which meets the set salinity
requirement. If the Product Water being produced is
“Unpotable”, high in salinity, then no signal is sent to the
valve, and it thus remains in the normal open position.
The “fail safe” normal open position diverts the unpotable
Product Water to discharge.
Problems and Symptoms appearing and caused by the
3-Way Product Water Diversion Solenoid Valve:
Prior to assuming that the 3-Way Product Water Diversion
Valve’s Solenoid has failed, perform a Function Test as
described in Section 6.4.
a)
The 3-Way Product Water Diversion Solenoid Valve
is allowing Brine Discharge Water to mix with
Potable Water.
There is a blockage in the Brine Discharge
line creating pressure on the Brine Water. This
abnormal pressure is forcing open the seat of the
3-Way Product Water Diversion Solenoid Valve
allowing Brine Water to mix with Product Water.
Solution
: Determine the cause of excess
pressure in the Brine Discharge Line and correct
it so that no back pressure is present in the Brine
Discharge Line.
The 3-Way Product Water Diversion Solenoid Valve
seat is not properly allowing Brine Water to mix
with Product Water.
Solution : Replace Valve.
b) The 3-Way Product Water Diversion Solenoid
Valve does not switch to Potable Water even
though the Touch Pad indicates that the System
is OK performing normally and producing Potable
Product Water.
probe accuracy and calibration to 800 PPM TDS NaCl at
77º Fahrenheit (25º Celsius).
Debris or biological growth can cause the Salinity
Probe to give incorrect measurement of the
Product Water Salinity.
Solution
: Clean the Salinity Probe contact pins
annually or at any sign of incorrect reading.
The Salinity Probe may have drifted from it’s
original calibration point.
Solution
: Replace the Salinity Probe.
32) PRODUCT WATER FLOW METER
The Product Water Flow Meter measures the Product
water rate of flow from the R.O. Membrane Element
and Vessel. By adding the amount of Product Water
flow to the Brine Discharge Flow the operator is able to
determine the total Feed Water Flow which is helpful in
diagnosing problems with the High Pressure Pump.
Problems and Symptoms appearing and caused by the
Product Water Flow Meter:
Prior to assuming that the Product Water Flow Meter has
failed, check the Control Logic model setup.
a)
The Product Flow Meter registers higher
than System Product Water Flow specification
at the Touch Pad.
Model set up was performed incorrectly at the
Touch Pad.
Solution : Check control logic setup. Refer to
Section 6.8.
One of the following abnormalities is causing
High Product Water Flow: Damage to the R.O.
membrane element; a Product Water O-Ring; an
End Plug is cracked and allowing Brine Water
by-pass into the Product Water; a blockage in
the Brine Discharge Line is causing reverse flow
of Brine Water into the 3-way Product Water
Diversion Valve.
Solution
: Locate the damaged R.O. membrane
element(s) and replace it/them. Locate the
damaged or missing Product Water O-Ring
and replace it. Locate the cracked End Plug
and replace it. Locate the blockage in the Brine
Discharge Line.
The Product Water Flow rate is lower than normal
because the Feed Water temperature is lower
than normal, the Feed Water salinity is higher than
normal, or the R.O. membrane element is fouled.