Du Pont WFRO60X Serie Instrucciones De Instalación página 16

CHECK VALVE
The check valve is vital for proper operation of the Reverse Osmosis system. The check valve ensures that the product water is flowing
in the proper direction, and does not allow it to flow backwards.
If the check valve requires service, disassemble by removing the (5) screws and assemble as shown.
AUTOMATIC SHUT-OFF
The automatic shut-off conserves water when the storage tank is full by turning the system off until more product water is needed. If
the automatic shut-off requires service, disassemble by removing the (5) screws and assemble as shown.
CHANGE QUICK CONNECT COLLET AND O-RING
1. Remove the collet and o-ring from the fitting with a small screwdriver. Be careful not to scratch the internal walls of the collet port.
2. Clean collet port, lubricate and insert the o-ring seal into the bottom of the port.
3. Push the collet inward until it locks in place.
R E V E R S E O S M O S IS T R O U BL E S H O O T IN G G U ID E
L O W WAT E R Q U A N T IT Y
Po ssib le C au se
Incoming water temperature is cold
Incoming water has extremely high level of Total Dissolved Solids (TDS)
Low incoming water pressure.
Feed water valve is plugged or closed.
Carbon pre-filter is clogged.
Reverse Osmosis Membrane is fouled
Air pressure in holding tank is incorrect.
Air Bladder in Holding Tank is ruptured.
No water to drain. Drain Flow Restrictor is clogged.
No water to drain. Air Gap Faucet is clogged.
Check Valve on RO Membrane Housing is stuck.
The Automatic Shut-Off Valve is Malfunctioning.
WFRO60X-1
S o lu t io n
The water temperature is one of the key factors in the performance of the RO membrane. The higher
the temperature, the higher the flow rate, and vice versa. All RO Membrane elements are tested and
rated at 77 o Fahrenheit. Ensure the RO is installed in a heated area of the home.
Incoming TDS level is one of the key factors determining the flow rate of the RO membrane. More
TDS requires more time for the membrane to remove – no solution is required. Ensure incoming TDS
does not exceed 2000 ppm.
Incoming water pressure is one of the key factors determining the flow rate of the RO membrane.
Higher pressure will enable a higher flow rate. Pressure must be above 40 PSI for proper operation.
You may need to install a Booster Pump or Permeate Pump if your pressure is below 40 PSI.
Open valve or unclog.
Replace Filter with DuPont model number WFQTC30001
Make sure incoming water pressure is within operating limits. Make sure drain line is not clogged.
Correct cause of fouling or replace RO Membrane.
Empty water from holding tank. Air pressure in valve stem should be between 5 - 7 PSI. Increase psi
similar to adding air to bicycle tire.
Replace Holding Tank. Call Customer service for replacement.
Remove tubing from membrane drain port, cut 1" length off end of tubing and add new restrictor.
Remove faucet body from faucet base and disconnect drain 3/8" tubing. Ensure the drain connector
is properly aligned with the hole in the drain pipe. Ensure there are no obstructions – clear them out.
Remove faucet body from faucet base and disconnect air gap ¼" tubing. Ensure there are no
obstructions – clear them out. Replace Air Gap Faucet.
Replace Whole Check Valve Assembly. Refer to maintenance section.
Replace Automatic Shut-Off Valve. Refer to maintenance section.
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