US Water Systems L1-200, Руководство пользователя

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20 REVISION 1.0, 1-19-15
REVERSE OSMOSIS TROUBLESHOOTING
SYMPTOMS POSSIBLE CAUSES CORRECTIVE ACTION
Low Inlet Pressure
Low supply pressure Increase inlet pressure
Cartridge filters plugged Change filters
Solenoid valve malfunction Replace sol. valve and/or coil
Motor may not be drawing correct current
Use clamp-on amp meter to check
Leaks Fix any visible leaks
Low Permeate Flow
Cold feed water See temperature correction sheet
Low operating pressure See low inlet pressure
Defective membrane brine seal Inspect and/or replace brine seal
Fouled or scaled membrane Clean membranes
High permeate flow
Damaged product tube o-rings Inspect and/or replace
Damaged or oxidized membrane Replace membrane
Exceeding maximum feed wa-
ter temperature
See temperature correction sheet
Poor permeate quality
Low operating pressure See low inlet pressure
Damage product tube o-rings Inspect and/or replace
Damaged or oxidized membrane Replace membrane
Membrane fouling
Metal Oxide Fouling
Improve pretreatment to remove metals.
Colloidal Fouling
Optimize pretreatment for colloid
removal. Clean with high pH anion-
ic cleaners.
Scaling (CaSO4, CaSO3, BaSO4, SiO2)
Increase acid addition and antiscalant
dosage for CaVO3 and CaCO4. Reduce
recovery. Clean with acid cleaners
Biological Fouling
Shock dosage of Sodium Bi-Sulfate. Con-
tinuous feed of Sodium Bi-Sulfate at re-
duced pH.
Chlorination and de-
chlorination. Replace cartridge
filters.
Organic Fouling
Activated Carbon or other pretreatment.
Clean with high pH cleaner.
Chlorine Oxidation
Check Chlorine feed equipment and de
-chlorination system.
Abrasion of membrane by Crystal-
line Material
Improve pretreatment. Check all fil-
ters for media
leakage.