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Runxin 82602 - User Manual

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Multi-functional Flow Control Valve for
Water Treatment Systems
82602（Old Model：F79A-LCD）
82602B（Old Model：F79B-LCD）
82604（Old Model：F82A-LCD）
82604B（Old Model：F82B-LCD)
82504AB (Old Model：F82AG-LCD)
82504BB（(Old Model：F82BG-LCD)
Instruction Manual
Please read this manual in details before using the valve
and keep it properly in order to consult in the future.
OWRX.466.515
China Patent No.: ZL02220153.X，
ZL200820169873.5

Questions and Answers

  • M
    Mr. Tyler KimSep 10, 2025
    Why does the circle capacity decrease in my Runxin Control Unit?
    • D
      Derek ParsonsSep 10, 2025
      If the circle capacity of your Runxin Control Unit decreases, it could be due to improper regeneration; regenerate correctly. A fouled resin bed could also be the cause; increase the backwash flow rate and time, and clean or change the resin. Improper salt setting may be another factor; readjust the brine drawing time. If the softener setting is not proper, recount and reset according to the test of outlet water. Raw water quality deterioration can also cause this; regenerate the unit manually temporarily, then reset the regeneration cycle. Finally, a stuck turbine could be the issue; disassemble the flow meter and clean it or replace the turbine.
  • B
    Bonnie SheaAug 22, 2025
    How to fix a Runxin 82602 Control Unit when the softener fails to regenerate?
    • J
      John FriedmanAug 22, 2025
      If your Runxin Control Unit softener fails to regenerate, it could be due to a few reasons. First, ensure that the unit has permanent electrical service by checking the fuse, plug, pull chain, or switch. If the power supply is okay, verify that the regeneration cycles are set correctly and reset them if necessary. If the issue persists, the controller or motor may be defective and need replacement.
  • A
    ashley89Aug 25, 2025
    Why does my Runxin Control Unit use too much salt?
    • A
      Andrea ReeseAug 25, 2025
      If your Runxin Control Unit is using too much salt, check the salt usage and salt setting. Also, excessive water in the brine tank can cause this issue.
  • T
    tiffanyhudsonAug 26, 2025
    What to do if there is excessive water in the brine tank of my Runxin 82602?
    • L
      Lauren FranklinAug 26, 2025
      If you notice excessive water in the brine tank of your Runxin Control Unit, try the following: reset the refilling time to the correct duration. Check the injector and ensure there are no obstructions in the brine pipe. Clean the brine valve and brine line to remove any foreign material. If you haven't installed a safety brine valve and there's a power failure during salting, stop the water supply and restart, or install a safety brine valve in the salt tank. Finally, if you have a safety brine valve, check if it is broken and repair or replace it if needed.
  • J
    Jonathan CallahanAug 27, 2025
    What to do if Runxin 82602 Control Unit softener fails to draw brine?
    • C
      Christopher GreenAug 27, 2025
      If your Runxin Control Unit softener fails to draw brine, the following could be the reasons: the line pressure might be too low, so try to increase it. The brine line might be plugged, so clean it. There could be a leak in the brine line, so replace it. The injector might be plugged, so clean or replace it. There could be an internal control leak, so replace the valve body. The drain line might be plugged, so clean the drain line flow control. The sizes of the injector and DLFC might not match the tank, so select the correct injector size and DLFC according to the P26 requirements.
  • J
    jennifer44Aug 29, 2025
    Why is the regeneration time not correct on my Runxin Control Unit?
    • E
      Elaine CarrAug 29, 2025
      If the regeneration time on your Runxin Control Unit is not correct, check the program and reset the time of day. Also, a power failure lasting more than 3 days may cause this issue.
  • M
    Matthew ArnoldSep 18, 2025
    What does E3 or E4 flash mean on my Runxin 82602?
    • E
      Eric ReedSep 18, 2025
      If E3 or E4 is flashing on your Runxin Control Unit, it indicates a faulty control board, which needs to be replaced.
  • A
    Andrew RamirezSep 12, 2025
    Why do all indicators display on the front panel of my Runxin Control Unit?
    • C
      Cheryl WoodardSep 12, 2025
      If all indicators are displayed on the front panel of your Runxin Control Unit, it could be due to faulty wiring between the front panel and the controller; check and replace the wiring. It could also indicate a faulty control board, which would need replacement. A damaged transformer could also be the cause; check and replace the transformer. Unstable electrical service might also be the issue; check and adjust the electrical service.
  • J
    Jennifer ObrienSep 8, 2025
    Why is there salt water in the softened water from my Runxin 82602?
    • A
      Amanda SilvaSep 8, 2025
      If you notice salt water in the softened water from your Runxin Control Unit, it could be due to foreign material in the injector or a malfunctioning injector; clean and repair the injector. Alternatively, the brine valve may not be shutting off; repair and clean the brine valve. Lastly, the fast rinse time may be too short; extend the fast rinse time.
  • M
    Mia FieldsSep 5, 2025
    Why is there interrupted or irregular brine in my Runxin 82602 Control Unit?
    • J
      Jeffrey WilliamsSep 5, 2025
      If you experience interrupted or irregular brine in your Runxin Control Unit, possible causes include water pressure that is too low or unstable (increase water pressure), a plugged or faulty injector (clean or replace injector), air in the resin tank (check and find the reason), or floccules in the resin tank during backwash (clean the floccules in the resin tank).

Summary

Product Overview

Notice

Important warnings and precautions for safe operation and maintenance.

Product Characteristics

Details the valve's features, sealing, and display.

Service Condition

Specifies operational parameters like pressure, temperature, and water quality requirements.

Product Install

Guides on installation procedures, device location, and pipeline connections.

Basic Setting & Usage

The Function of PC Board

Explains the functions of buttons and display elements on the control board.

Parameter Specification

Lists control modes and their regeneration/filter functions.

Applications

Softener Flow Chart

Illustrates the regeneration cycle process for the softener.

Function and Connection of PC Board

Details the main functions and wiring of the control board's connectors.

System Configuration and Flow Rate Curve

Provides tank configurations, resin volumes, and flow rate characteristics.

Parameter Settlement

Guides on setting regeneration parameters like service time, backwash, and refill.

Trial Running

Guides on conducting the initial operational test after installation.

Trouble-Shooting

Lists common problems, their causes, and solutions for control valve and controller faults.

Assembly & Parts

Shows exploded views and lists components for valve body assembly.

Warranty Card

Runxin 82602 Specifications

General IconGeneral
BrandRunxin
Model82602
CategoryControl Unit
LanguageEnglish

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