BWS350 System Installation, Operation & Maintenance
17
Routine Maintenance, Continued
lon tape from the male 1/8” threads on the stem
adapter.
6. Wrap the 1/8” male thread on the stem adapter
with 2 wraps of Teflon tape and re-install in the
bottom of the new AMS-QT cartridge.
7. Align the taps on the AMS-QT cartridge with
the QT head and insert into the head and turn a
quarter-turn to the right.
8. Insert the black reject line into the push-to-connect
elbow on the bottom of the AMS-QT cartridge.
9. Install a piece of 3/8” tubing in the Processor
Sample Port valve, open the Sample Port, and
direct to a bucket or drain. Turn the Tank Inlet
Divert Valve to the Bypass or UP position. Open
the Water Supply Valve and put the Emergency
Bypass Valve in the “SERVICE” position. Allow
water to flush through the membrane, displacing
air and preservative, to flow out the Sample/Flush
port to drain for 5-10 minutes.
10. Actuate the Water Quality Monitor and check the
“OUT” or Permeate Water TDS.
11. After the AMS-QT cartridge is purged of air, close
the Sample Port.
12. Check for leaks.
13. Plug in the RP Pump power cord.
Storage Tank Cleaning
If the Storage Tank becomes dirty, regular cleaning
and sanitization may be required. (Request a Storage
Tank Cleaning Guide from OptiPure.) The Tank can be
emptied for cleaning by doing the following:
1. Close the Water Supply Valve
2. Connect 3/8” tubing from the Sample Port on the
Processor to the drain.
3. Open the Sample Port. The RP Pump should op-
erate, pumping water to the drain until the Tank is
nearly empty.
4. Unplug the RP Pump power cord.
5. When finished, close Sample Port, plug in RP
Pump, and open Water Supply Valve.
RP Pump Motor Brushes
Over time or with heavy usage, the motor brushes in
the RP Pump can become worn, causing the Pump to
no longer operate reliably. (See “RP Pump Does Not
Turn On” under Trouble-Shooting for symptoms.) For
a system with heavy usage, it may be necessary to re-
place motor brushes under a preventive maintenance
schedule, such as annually. To restore a Pump with
worn brushes, order and install
Brush Kit 704-39905
,
which is supplied with instructions.
Buffer Tank Pre-Charge Pressure
Very slowly over time, the air pre-charge in the RP As-
sembly Buffer Tank can diminish, reducing the ability
of the Buffer Tank to maintain downstream pressure.
Annually, the pre-charge should be checked using a
tire gauge on the valve, which is on the side or bottom
of the Buffer Tank. If it is lower than 20 psi, air should
be added to restore it to 20 psi.
Trouble-Shooting
Problem
Possible Cause
Resolution
Running out of water.
Valves in incorrect operating position
No power to RP Pump
Operating Pressure reduced
Very cold Feed Water temperature
Low Feed Water Pressure
Demand exceeds system capacity
High Level Float Switch Open
Ensure the Processor Bypass Valve is in Service position, the Repressuriza-
tion Assy (RP) Tank Divert Valve is in Down position, & Buffer Tank Valve is
Open (handle parallel to valve body).
See “RP Pump Does Not Turn On”
Pre-Filters need to be replaced
Raise water temp to increase production or determine if higher capacity
system is required
Install optional Feed Water Pressure Booster Pump
Determine if the demand is unusual or inconsistent, or resize system
Remove Storage Tank lid and actuate Float Switch up and down
Poor water quality.
Blend Valve mis-adjusted
Membrane failure
Follow steps to adjust Blending Valve on Page 10
Replace AMS-QT membrane
Short AMS-QT membrane
life.
Product/Reject Ratio mis-adjusted
Poor Feed Water quality, presence of
iron, silica or non-calcium carbonate
hardness
Measure and adjust the Reject Flow Rate per Page 15-16
Determine Feed Water quality by obtaining a water quality report from city
water supply utility or contact your OptiPure dealer
Short Pre-Filter life
Heavy sediment loading
Add FXAF01-12 or -12B for added Pre-Filter protection
Processor Either Does Not
Shut Off or Turn On
High Level Float Switch or Solenoid
Valve not functioning
Remove Storage Tank lid and actuate Float Switch up and down.
Replace High Level Float Switch or Solenoid Valve
