Aqua-Pure CWS150MECJ - Manual (Page 18)

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diameter holes that control the fl ow rates of water so that the proper concentration of regenerant is used. Sharp objects, which can score the plastic,
should not be used to clean the injector. Scoring the injector or increasing the diameter of the hole could change the operating parameters of the
injector. Push the plug(s) and/or injectors fi rmly in place, replace the screen and hand tighten the injector cap.
Refi ll Flow Control Assembly or Refi ll Port Plug:
To clean or replace the refi ll fl ow control, pull out the elbow-locking clip and then pull straight up on the elbow. Replace the elbow locking clip in the
slot so that it is not misplaced. Twist to remove the white fl ow control retainer. The fl ow control can be removed by prying upward through the side
slots of the retainer with a small fl at blade screwdriver.
Chemically clean the fl ow control or the white fl ow control retainer using dilute sodium bisulfi te or vinegar. After chemically cleaning, rinse the
component with clean water before wiping with a clean cloth. Do not use a wire brush. If necessary, replace the fl ow control, o-ring on the fl ow
control retainer, or the o-ring on the elbow.
Reseat the fl ow control so the rounded end is visible in the fl ow control. Reseat the white fl ow control retainer by pushing the retainer into the elbow
until the o-ring seats. Remove locking clip, push down on elbow to reseat and insert locking clip. Do not use petroleum jelly, oils, or other unaccept-
able lubricants on o-rings. A silicone lubricant may be used on the o-ring on the elbow or the white retainer.
Water Meter or Meter Plug:
The water meter assembly is connected to the PC board by a wire. If the entire water meter assembly is to be replaced, remove the control valve
cover and disconnect the power source and water meter plugs from the PC board. Unlatch the drive assembly and lean if forward. Unthread the
water meter wire from the side of the drive assembly and through the drive back plate. To reinstall, rethread the water meter wire through the drive
back plate and the side of the drive assembly. Reattach the drive assembly and the water meter and power plugs. If no water meter wire is visible,
then a plug is installed, not a water meter. The water meter wire does not need to be removed from the PC board if the water meter is only being
inspected and cleaned. To remove the water meter assembly, unscrew the meter cap on the left side of the control valve. Pliers may be used to
unscrew the nut if necessary. With the nut removed, a slot at the top of the water meter is visible. Twist a fl at blade screwdriver in the slot between
the control valve body and the meter. When the meter is part way out it is easy to remove the water meter from the housing. Once the water meter
is removed from the control valve body, gently pull forward on the turbine to remove it from the shaft.
Do not use a wire brush to clean the turbine. Wipe with a clean cloth or chemically clean in dilute sodium bisulfi te or vinegar. After chemically
cleaning, rinse the component with clean water before wiping with a clean cloth. The turbine can be immersed in the chemical. Do not immerse
electronics. If the turbine is scored or damaged or the bearing on the turbine are worn, replace the turbine.
Do not lubricate the turbine shaft. The turbine shaft bearings are prelubricated. Do not use petroleum jelly, oils, or other unacceptable lubricants on
the o-ring. A silicone lubricant may be used on the black o-ring.
Snap the turbine on the shaft and reinsert the water meter into the side slot. Hand tighten the nut. Do not use a pipe wrench to tighten nut.
Bypass Valve:
The working parts of the bypass valve are the rotor assemblies that are contained under the bypass valve caps. Before working on the rotors, make
sure the system is depressurized. Turn the red arrow shaped handles towards the center of the bypass valve and back several times to ensure rotor
is turning freely.
The nuts and caps are designed to be unscrewed or tightened by hand. If necessary a pliers can be used to unscrew the nut or cap. Do not use a
pipe wrench to tighten or loosen nuts or caps. Do not place screwdriver in slots on caps and/or tap with a hammer. To access the rotor, unscrew the
cap and lift the cap, rotor and handle out as one unit. Twisting the unit as you pull it out will help to remove it more easily. There are three o-rings:
one under the rotor cap, one on the rotor stem and the rotor seal. Replace worn o-rings. Clean rotor. Reinstall rotor.
When reinstalling the red arrow handles be sure that:
1. The handle pointers are lined up with the control valve body arrows, and the rotor seal o-ring and the retainer on both rotors face to the right when
being viewed from the front of the control valve; or
2. Arrows point toward each other in the bypass position.
Since the handles can be pulled off, they could be accidentally reinstalled 180° from their correct orientation. To install the red arrow handles cor-
rectly, keep the handles pointed in the same direction as the arrows engraved on the control valve body while tightening the bypass valve caps. After
completing and valve maintenance, press and hold NEXT and REGEN buttons for 3 seconds or unplug power source jack (black wire) and plug back
in. The resets the electronics and establishes the service piston position. The display should fl ash all wording, then fl ash the software version (e.g.
181) and then reset the valve to the service position.