Peerless Water 30 CME Series - Service Manual - Manual (Page 12)

SERVICE INSTRUCTIONS CONTINUED
After completing any valve maintenance, press and hold NEXT and REGEN buttons for 3 seconds or unplug
power source jack (black wire) and plug back in. This resets the electronics and establishes the service piston
position. The display should flash all wording, then flash the software version (e.g. 154) and then reset the
valve to the service position.
The plug and/or injector can be pried out with a small screwdriver. The plug can be wiped clean. If the plug
leaks replace the entire plug. The injector consists of a throat and a nozzle. Chemically clean the injector with
vinegar or sodium bisulfite. The holes can be blown out with air. Both pieces have small diameter holes that
control the flow rates of water to insure 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. Two holes are labeled DN and UP.
Check for compliance with one of the following:
a. For downflow systems, the appropriate size injector is located in the “DN” hole, a plug is in the
“UP” hole and the piston is a combination of the downflow main piston and the regenerant piston;
b. For upflow systems, the appropriate size injector is located in the “UP” hole, a plug is in the
“DN” hole and the piston is a combination of the upflow main piston and the regenerant piston; or
c. For backwash only systems, a plug is in the “DN” hole and in the “UP” hole, and the piston
only has a downflow main piston (the regenerant piston must be removed) and a plug is in the refill flow control
position.
Push the plug(s) and/or injectors firmly in place, replace the screen and hand tighten the injector cap.
REFILL FLOW CONTROL ASSEMBLY OR REFILL PORT PLUG
To clean or replace the refill flow 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 flow control
retainer. The flow control can be removed by prying upward through the side slots of the retainer with a small
blade flat screwdriver.
Chemically clean the flow control or the white flow control retainer using dilute sodium bisulfite or vinegar. Do
not use a wire brush. If necessary, replace the flow control o-ring on the flow control retainer, or the o-ring on
the elbow.
Reseat the flow control so the rounded end is visible in the flow control. Reseat the white flow 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 Vaseline, oils, or other unacceptable lubricants on o-rings. A silicon lubricant may be used on the o-
ring on elbow or the white retainer.