Runxin F63C1 - User Manual

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Multi-functional Flow Control Valve for

Water Treatment Systems

63504,63504B (Old Model No.: F63C1,F63G1)

63604,63604B (Old Model No.: F63C3,F63G3)

73504,73504B (Old Model No.: F68C1,F68G1)

73604,73604B (Old Model No.: F68C3,F68G3)

User Manual

Please read this manual in details before using the valve

and keep it properly in order to consult in the future.

0WRX.466.501

International Patent Public No.:

WO 2006/007772

China Patent No.: ZL02220153.X,

ZL200420078956.5

US Patent No.: 7549446

India Patent No.: 232582

Russia Patent No.:2349819

South Korea Patent No.:10-0914137

Mexico Patent No.: 268581

Australia Patent No.: 2005263257

Philippine Patent No.: 1-2006-502553

Taiwan Patent No.:M287896

Table of Contents

Questions and Answers

K
kevinbrownSep 12, 2025
Why is the capacity of my Runxin F63C1 decreasing?
- B
  bhatfieldSep 12, 2025
  If the capacity of your Runxin Control Unit is decreasing, it could be because the unit fails to regenerate or doesn't regenerate properly; regenerate according to the correct operation requirements. A fouled resin bed can also cause this; increase the backwash flow rate and time, and clean or change the resin. Check if the salt setting is not proper and 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 lead to decreased capacity; regenerate the unit manually temporarily, then reset the regeneration cycle. Finally, a stuck turbine of the flow meter can be the cause; disassemble the flow meter and clean or replace the turbine.
S
Stephanie ScottAug 25, 2025
Why my Runxin F63C1 Control Unit uses too much salt?
- P
  phillipsjacobAug 25, 2025
  If your Runxin Control Unit is using too much salt, start by checking the salt usage and salt setting to ensure they are properly configured. If there's excessive water in the brine tank, refer to problem no. 6 for troubleshooting steps.
J
Jennifer ThompsonAug 26, 2025
What to do if Runxin F63C1 Control Unit softener fails to draw brine?
- S
  sandovaljohnAug 27, 2025
  If your Runxin Control Unit softener isn't drawing brine, it could be due to several reasons. First, ensure that the line pressure is adequate; increase it if it's too low. Check for any blockages in the brine line and clean it if necessary. Inspect the brine line for leaks and replace it if needed. Also, the injector might be plugged, so clean or replace it. An internal control leak could also be the cause, requiring replacement of the valve body. Additionally, check if the drain line is plugged and clean the drain line flow control. Finally, ensure that the sizes of the injector and DLFC match the tank requirements according to the P20 requirements.
D
Derek DayAug 27, 2025
Why is there excessive water in the brine tank of my Runxin Control Unit?
- T
  timothygonzalezAug 27, 2025
  If there's excessive water in the brine tank of your Runxin Control Unit, it could be due to several reasons. The refilling time might be too long, so reset it to the correct duration. Check the brine line for any foreign material and clean it. Also, inspect the brine valve for foreign material and clean both the valve and the brine line. If a safety brine valve isn't installed and there's a power failure during salting, stop the water supply and restart, or install a safety brine valve in the salt tank. Lastly, the safety brine valve itself might be broken down, requiring repair or replacement.
T
Travis GilbertAug 29, 2025
How to correct regeneration time on Runxin F63C1 Control Unit?
- M
  michaelparksAug 29, 2025
  If the regeneration time on your Runxin Control Unit is incorrect, check the program and reset the time of day accordingly. If there was a power failure lasting more than 3 days, no solution was mentioned.
T
Troy ThompsonAug 31, 2025
Why is there pressure lost or iron in conditioned water with my Runxin Control Unit?
- S
  stephaniebrooksAug 31, 2025
  If you're experiencing pressure loss or iron in the conditioned water from your Runxin Control Unit, start by cleaning the water supply pipe if there's iron present. If there's an iron mass in the softener, clean the valve, add resin cleaning chemical, and increase the frequency of regeneration. For a fouled resin bed, check the backwash, brine draw, and brine tank refill, and increase the frequency of regeneration and backwash time. If there's too much iron in the raw water, iron removal equipment is required to install before softening.
D
Donald HoustonSep 18, 2025
What does E3 or E4 Flash mean on Runxin F63C1 Control Unit?
- S
  smithlauraSep 19, 2025
  If 'E3' or 'E4' is flashing on your Runxin Control Unit, it indicates that the control board is faulty and needs to be replaced.
M
Max SmithNov 20, 2025
Why is my Runxin Control Unit softener supplying hard water?
- M
  melissaschneiderNov 20, 2025
  If your Runxin Control Unit softener is supplying hard water, several factors could be the cause. Check if the bypass valve is open or leaking and close or repair it. Ensure there is enough salt in the brine tank, maintaining the salt level above the water level. Inspect the injector for any blockages and clean or replace it if necessary. Also, verify that sufficient water is flowing into the brine tank by checking the brine tank refill time. Inspect the O-ring on the riser pipe for leaks and ensure the riser pipe isn't cracked, and check the tube pilot. If there's an internal valve leak, consider changing the valve body. Confirm that the regeneration cycles are correctly set in the program. Check for resin shortage and add resin to the mineral tank, looking for any resin leaks. Finally, b...
A
Amber GomezSep 9, 2025
Why is there salt water in the softened water from my Runxin F63C1 Control Unit?
- R
  richard01Sep 9, 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 injector malfunction; clean and repair the injector. If the brine valve cannot be shut off, repair and clean it. Also, the rapid rinse time might be too short, so extend it.
K
Kelly LeblancSep 6, 2025
Why is the brine interrupted or irregular in my Runxin F63C1 Control Unit?
- S
  Stephanie MendozaSep 6, 2025
  If you're experiencing interrupted or irregular brine in your Runxin Control Unit, it could be due to several reasons. Ensure that the water pressure is adequate and stable; increase it if it's too low. Check the injector for any blockages or faults and clean or replace it if necessary. Look for air in the resin tank and find the reason. Also, check for floccules in the resin tank during backwash and clean them.

Runxin F63C1 Specifications

General

Output Current	1.5A
Water Temperature	5℃-50℃
Inlet/Outlet	1"
Drain	1/2"
Brine Line Connector	3/8"
Operating Temperature	5℃-50℃
Relative Humidity	<95%

Summary

Product Overview

Main Application & Applicability

Details the primary uses and suitability of the valve for various water treatment systems.

Product Characteristics

Outlines the key features, design, and operational characteristics of the control valve.

Service Condition

Specifies the required working conditions, environment, and inlet water quality for the valve.

Product Structure and Technical Parameters

Provides dimensions, diagrams, and technical specifications for the valve's construction.

Installation

Guides users through the necessary steps and considerations for installing the control valve.

Basic Setting & Usage

The Function of PC Board

Explains the purpose and indicators of the main control board's display and buttons.

Basic Setting & Usage

Covers parameter specifications, default settings, and general usage instructions for the valve.

Applications

Softener Flow Chart

Illustrates the operational flow of the softener valve through different stages.

The Function and Connection of PC Board

Details the functions and wiring connections of the main control board components.

System Configuration and Flow Rate Curve

Presents product configurations, tank sizes, resin volumes, and flow rate characteristics.

Parameter settlement

Provides formulas and guidelines for calculating and setting various operational parameters.

Parameter Enquiry and Setting

Explains the process of viewing and adjusting the valve's operational parameters.

Trial running

Outlines the procedure for conducting trial runs after installation and setup.

Trouble-Shooting

Lists common problems, their causes, and suggested corrections for valve faults.

Assembly & Parts

Details the components and parts list for the valve assembly and connectors.

Warranty Card

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