Sea Recovery SRC Aqua Matic 450-1 Owner's Manual page 187

• 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.
Solution: If Temperature or Salinity of the Feed Water are the cause of the lower than normal
32. 3-WAY PRODUCT WATER DIVERSION SOLENOID VALVE [41]:
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 "Un-potable", 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 un-
potable Product Water to discharge.
Problems & 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 3 of this Owner's Manual.
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
• The 3-Way Product Water Diversion Solenoid Valve seat is not properly adjusted allowing Brine
Water to mix with Product Water.
Solution: Adjust the Valve's seats, refer to Section 8 of this Owner's Manual.
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.
• The Solenoid is not actuating the Valve's seat.
Solution: Check for 12 VDC at the valve's Solenoid, and at the Main Printed Circuit Board.
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.
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 6 of this Owner's Manual, or replace the R.O. Membrane Element(s).
that no back pressure is present in the Brine Discharge Line.
Check for loose Wire and correct it.
Check the valve's solenoid continuity and functionality, refer to Section 8 of this
Owner's Manual. Replace the Solenoid Valve if the Solenoid is found to be non-
functional.
section 7 page 27 of 41
Aqua Matic 450-1800 Rev. A