Runxin F79A-LCD User manual

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

MODEL82602-F79A-LCD/82602B-F79B-LCD/82604-F82A-LCD/82604B-F82B-LCD
Before the valve put into use, please fill in the below content so as to
help us to refer in the future.
The Program Type Setting (Operation by professional)
When all symbols light on, press and hold and buttons for 5
seconds to enter the menu of valve model selection. Please set the
program type in accordance with the product type.
Softener System Configuration
Tank Size：Dia. mm，Height mm；
Resin Volume L；Brine Tank Capacity L；
Hardness of Raw water mmol/L；
Pressure of Inlet Water MPa；
Control Valve Model ；Number ；
The Specification of Brine Line Flow Control ；
Injector No. 。
Water Source: Ground-water□ Filtered Ground-water □Tap Water □
Other .
Parameter Set
Parameter
Unit
Factory
Default
Actual Value
Control Mode
A-01（02/03/11/12/13/21）
/
A-01
Water Treatment Capacity
（Meter Type）
m3
10.00
Regeneration Time
/
02∶00
Interval Backwash Times
/
F-00
Rinsing Time
/
02∶00
Rinsing Frequence
/
F-00
Backwash Time
min.
10:00
Brine & Slow Rinse Time
min.
60:00
Brine Refill Time
min.
05:00
Fast Rinse Time
min.
10:00
Interval Regeneration Days
D.
30
Output Mode b-01（02）
/
b-01
If there is no special requirement when product purchase, we choose
3# drain line flow control，and 6305 injector for the F79 standard
configuration. We choose 5# drain line flow control，and 6309 injector for
the F82 standard configuration.

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Catalogue
Notice ...........................................................................................................
1. Product Overview.....................................................................................
1.1. Main Application &Applicability..........................................................
1.2. Product Characteristics.....................................................................
1.3. Service Condition..............................................................................
1.4. Product Structure and Technical Parameters ...................................
1.5. Product Install....................................................................................
2. Basic Setting & Usage .............................................................................
2.1. The Function of PC Board.....................................................................
2.2. Basic Setting & Usage ..........................................................................
3. Applications..............................................................................................
3.1. Softener Flow Chart..............................................................................
3.2. The Function and Connection of PC Board..........................................
A. Signal Output Connector..................................................................
B. Disinfection Device Connector.........................................................
C. Salt Shortage Alarm Device.............................................................
D. Remote Handling Connector............................................................
3.3. System Configuration and Flow Rate Curve.........................................
3.4. Parameter Settlement...........................................................................
3.5. Parameter Enquiry and Setting.............................................................
3.6. Trial Running.........................................................................................
3.7. Trouble-shooting ...................................................................................
3.8 . Assembly & Parts.................................................................................
4. Warranty Card..........................................................................................

MODEL82602-F79A-LCD/82602B-F79B-LCD/82604-F82A-LCD/82604B-F82B-LCD
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Notice
To ensure normal operation of the valve, please consult with professional
installation or repairing personnel before use it.
If there are any of pipeline engineering and electric works, there must be
finished by professional at the time of installation.
Do not use the control valve with the water that is unsafe or unknown
quality.
Depending on the changing of working environment and water
requirement, each parameter of softener should be adjusted accordingly.
When the water treatment capacity is too low, please check the resin. If
the reason is shortage of resin, please add; if the resin turns reddish brown
or broken, please replace.
Test water periodically to verify that system is performing satisfactorily.
Sodium used in the water softening process should be considered as
part your overall dietary salt intake. Contact doctor if you are on a low
sodium diet.
Ensure that there is solid salt all the time in the brine tank in the course of
using, when this valve is used for softening. The brine tank should be
added the clean water softening salts only, at least 99.5% pure, forbidding
use the small salt.
Do not put the valve near the hot resource, high humidity, corrosive,
intense magnetic field or intense librations environment.And do not leave it
outside.
Forbidden to carry the injector body. Avoid to use injector body as
support to carry the system.
Forbidden to use the brine tube or other connectors as support to carry
the system.
Please use this product under the water temperature between 5～50℃,
water pressure 0.15～0.6MPa. Failure to use this product under such
conditions voids the warranty.
If the water pressure exceeds 0.6Mpa, a pressure reducing valve must
be installed before the water inlet. While, if the water pressure under
0.15MPa, a booster pump must be installed before the water inlet.
Do not let children touch or play, because carelessness operating may
cause the procedure changed.
When the attached cables of this product and transformer are changed,
they must be changed to the one that is from our factory.

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1. Product Overview
1.1. Main Application &Applicability
Used for softening or demineralization water treatment systems
Be suitable for
Residential softening system
Residential filtering system
1.2. Product Characteristics
Simple structure and reliable sealing
It adopts hermetic head faces with high degree pottery and corrosion
resistance for opening and closing. It combines with Service, Backwash,
Brine & Slow Rinse, Brine Refill and Fast Rinse.
Manual function
Realize regeneration immediately by pushing manual button at any
time.
Long outage indicator
If outage overrides 3days, the time of day indicator “”will flash to
remind people to reset new time of day. (Refer to the figure)
LCD screen display
Adopt wordage to display all status, clear and briefly.
Users can choose English or Chinese display interface in 2 ways:
A. Connecting power then press buttons and for five seconds
to enter language choice interface.
B. Enter into “Set Language” to choose the language.
Buttons lock
No operations to buttons on the controller within 1 minute, button lock
indicator light on which represent buttons are locked. Before operation
press and hold the “ ” and “ ” buttons for 5 seconds to unlock. This
function can avoid incorrect operation.
The F79 with weather cover can be installed outside
Has water bypass and no hard water bypass two choices

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No hard water bypass refers to the control valve no water pass when
valve in regeneration. Model: A for no hard water bypass (No raw water
flow out from outlet when in regeneration process); B for with hard water
bypass. (With raw water flow out from outlet when in regeneration process)
With partial bypass function
Service time, by adjusting bypass screw can let part of raw water flow
into the outlet without being softened.
Down-flow regeneration, up-flow regeneration and filter can be
implemented with a valve.
By program selection to choose following modes
Mode
Name
Instruction
A-01
Down-flow
Regeneration,
Meter
Delayed
Down-flow regeneration, regenerate on the day
although the available volume of treated water
drops to zero (0). Regeneration starts at the
regeneration time.
A-02
Down-flow
Regeneration,
Meter
Immediate
Down-flow regeneration, regenerate when the
available volume of treated water drops to zero (0).
A-03
Down-flow
Regeneration,
Intelligent
Meter Type
Down-flow regeneration, regenerate starts at the
regeneration time of the current day when the
available volume of treated water less than the
average water consumption of last 7 days.
A-11
Up-flow
Regeneration,
Meter
Delayed
Up-flow regeneration, regenerate starts at the
regeneration time although the available volume
water of treated water drops to zero (0).
Regeneration starts at the regeneration time.
A-12
Up-flow
Regeneration,
Meter
Immediate
Up-flow regeneration, regenerate when the
available volume of treated water drops to zero (0).
A-13
Up-flow
Regeneration,
Intelligent
Meter Type
Up-flow regeneration, regeneration starts at the
regeneration time of the current day when the
available volume of treated water less than the
average water consumption of last 7 days.
A-21
Filter Type
Filter type, filter when the service days or available
capacity reach to zero (0)

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Interval backwash times (Only for up-flow regeneration valve)
It could set up interval backwash times for up-flow type A-11, 12, 13,
which means several times of services but one time of backwash. The
setting of interval backwash time is depending on the local water turbidity.
(The lower the turbidity is, the longer of the interval backwash time can be
set)
Rinsing frequence
It could set up rinsing frequence when selection of filter mode A-21,
which means several times of backwash and fast rinse but one time of
service (Need set). In this mode, the brine line connector need be sucked
in this working mode.
Signal output
There is a signal output connector on main control board. It is for
controlling external wiring ( Refer to Figure from Figure3-1 to Figure 3-8).
There are two kinds of output modes.b-01 mode: Turn on start of
regeneration and shut off end of regeneration; b-02 mode: Signal available
only intervals of regeneration cycles and in service.
Remote handling input
This connector can receive external signal, used together with PLC,
and computer etc. to control the valve. （Application refer to Figure 3-11）
Disinfection connector ( It is necessary to separately matching
with a disinfection device)
The valve has the disinfection connector, which can supply
DC5V/200mA power output under the Brine status. It can make a part of
brine water electrolyzed, producing hypochlorous acid to sterilize and
disinfect the resin. (Refer to Figure P20)

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Connector of salt shortage alarm (It is necessary to separately
matching with a gravity meter. )
The connector is jointed with gravity meter. When the brine tank is
shortage of salt, the system will give the alarm and remind user to add the
salt in time. (Wiring refer to P20)
Maximum interval regeneration days
Under the situation of service reaching the setting days and the
volume not yet, it could enter into regeneration process forcibly when
current time is the same as regeneration time.
All parameters can be modified
According to the water quality and usage, the parameters in the
process can be adjusted.
1.3. Service Condition
Runxin Valve should be used under the below conditions:
Items
Requirement
Working
conditions
Water pressure
0.15MPa～0.6MPa
Water
temperature
5℃～50℃
Working
environment
Environment
temperature
5℃～50℃
Relative
humidity
≤95%（25℃）
Electrical facility
AC100～240V/50～60Hz
Inlet water
quality
Water hardness
First Grade Na+<6.5 mmol/L
Second Grade Na+<10 mmol/L
Water turbidity
Down-flow regeneration ＜5FTU ；
UP-flow regeneration＜2FTU
Filter＜20FTU
Free chlorine
＜0.1 mg/L
Iron2+
＜0.3 mg/L

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When the water turbidity exceeds the conditions, a filter should be
installed on the inlet of control valve.
The requirement for free chlorine is just suit for softener mode but
not filter mode.
1.4. Product Structure and Technical Parameters
A. Product dimension (The appearance is just for reference. It is subjected
to the real product.)
F79A-LCD/F79B-LCD（82602/82602B）
F82A-LCD（82604）/F82B-LCD（82604B）

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F82AG-LCD（82604AB）/F82BG-LCD（82604BB）
Model
A (mm) max
B (mm) max
H (mm) max
F79A/F79B-LCD
186
230
200
F82A/F82B-LCD
220
260
180
F82AG/F82BG-LCD
240
200
205
B. Technical parameter
Control valve are suitable for the power adapter output: DC12V, 1.5A
Model
Connector Size
Water
Capacity
m3/h
@0.3MPa
Remark
Inlet/
Outlet
Drain
Brine
Line
Connector
Base
Riser
Pipe
F79A-LCD
3/4″M
1/2″M
3/8″M
2-1/2″-
8NPSM
1.05″OD
(26.7mm)
2
No raw water
pass valve
when
regeneration
F79B-LCD
With raw water
pass valve
when
regeneration

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F82A-LCD
1″M
1/2″M
3/8″M
2-1/2″-
8NPSM
1.05″OD
(26.7mm)
3.5
No raw water
pass valve
when
regeneration
F82B-LCD
With raw water
pass valve
when
regeneration
F82AG-LCD
1″M
1/2″M
3/8″M
2-1/2″-
8NPSM
1.05″OD
(26.7mm)
3.5
No raw water
pass valve
when
regeneration
F82BG-LCD
With raw water
pass valve
when
regeneration
Remark: M-Male, F-Female, OD: Outer Diameter
1.5. Product Install
A. Install notice
Before installation, read all those instructions completely. Then obtain
all materials and tools needed for installation.
The installation of product, pipes and circuits, should be accomplished
by professional to ensure the product can operate normally.
Perform installation according to the relative pipeline regulations and
the specification of Inlet, Outlet, Drain and Brine Line Connector.
B. Device location
①The filter or softener should be located close to drain.
②Ensure the unit is installed in enough space for operating and
maintenance.
③Brine tank need to be close to softener.
④The unit should be kept away the heater, and not be exposed outdoor.
Sunshine or rain will cause the system damage.
⑤Avoid to install the system in circumstance of Acid/Alkaline, magnetic or
strong virbration, because above factors will cause the system disorder.

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⑥Do not install the filter or softener, drain pipeline in circumstance which
temperature may drop below 5℃, or above 50℃.
⑦One place is recommended to install the system which cause the
minimum loss in case of water leaking.
C. Pipeline installation (Exampled as F82)
○,1 Install control valve
a. As the Figure 1-1 shows, select the riser
pipe with 26.7 mm OD, glue the riser pipe
to the bottom strainer and put it into the
resin tank, cut off the exceeding tube out of
tank top opening. Plug the riser tube in
case of mineral entering.
b. Fill the resin to the tank, and the height
is accordance with the design code.
c. Install the top distributor to the valve.
d. Insert the riser tube into control valve
and screw tight control valve.
Note:
●The length of riser tube should be
neither higher 2 mm nor lower 5 mm
tank top opening height, and its top end
should be rounded to avoid damage of
O-ring inside the valve.
●Avoid floccules substance together
with resin to fill in the resin tank.
●Avoid O-ring inside control valve falling out while rotating it on the
tank.
○,2 Install animated connector
As Figure1-2 shows, put the sealing ring into nut of animated
connector, and screw in water inlet.
○,3 Install flow meter
As Figure1-2 shows, put the sealing ring into nut of flow meter, screw
in water outlet; insert the sensor into flow meter.

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○,4 Pipeline connection
a. As Figure 1-3 shows, install a
pressure gauge in water inlet.
b. Install valve A, valve B, valve C
and valve D in the inlet and outlet
pipeline. The valve D is sampling
valve. (Or adopt F70C/F70D bypass
valve). (Can remove the check
valve.)
c. Inlet pipeline should be in parallel
with outlet pipeline. Support inlet
and outlet pipeline with fixed holder.
Note:
●If making a soldered copper
installation, do all sweat
soldering before connecting
pipes to the valve. Torch heat will
damage plastic parts.
●When turning threaded pipe
fittings onto plastic fitting, use care not to cross thread or broken
valve.
●If the valve belongs to time clock type or F79, there are no step ②
and③
○,5 Install drain pipeline
a. As the Figure 1-4 shows, slide the drain hose connector into drain outlet.
b. Insert drain line flow control into drain outlet.

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c. Screw drain hose connector into drain outlet, and lock it.
d. Locate the drain hose well as the Figure1-4
shows.
Note:
●Control valve should be higher than drain
outlet, and be better not far from the drain
hose.
●Be sure not connect drain with sewer, and
leave a certain space between them, avoid
wastewater be absorbed to the water
treatment equipment, such as showed in the
Figure1-4.
○,6 Connect brine tube
a. As Figure1-5 shows, slide 3/8″ brine tube hose
connector over end of brine tube.
b. Insert tube bushing into the end of brine tube.
c. Insert the red brine line flow control into valve
brine line connector (Attention: Cone side of
control should face into valve).
d. Tighten brine draw hose connector onto brine line connector.
e. Connect the other end of brine tube with the brine tank. (the liquid level
controller and air-blocker should be installed in the brine tank.)
Remark: The brine tube and drain pipeline should not be bended or
plugged.

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2. Basic Setting & Usage
2.1. The Function of PC Board
A. Button lock indicator
light on, indicate the buttons are locked. At this moment, press any
single button will not work (Under any status, no operation in one minute,
will light on and lock the buttons.)
Solution：Press and hold both and for 5 seconds, the light off.
B. Manu/Confirm button
In menu mode, press to enter program display mode ,viewing all
values.
In program display mode, press to enter program set mode,
adjusting all values.
Press after all program are set, and then the voice “Di” means all
setting are success and return program display mode.
C. Manual/Return button
Press in any status, it can proceed to next step. (Example: Press
in Service status, it will start regeneration cycles instantly; Press

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while it is in Backwash status, it will end backwash and go to Brine
&Slow Rinse at once.)
Press in program display mode, and it will return in Service; press
in program set mode, and it will return program display mode.
Press while adjusting the value, then it will return program display
mode directly without saving value.
②Down▼ and Up ▲
In program display mode, press ▲ or ▼ to view all values.
In program set mode, press ▲ or ▼ to adjust values.
Press and hold both ▲ and ▼ for 5 seconds to unlock the buttons.

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2.2. Basic Setting &Usage
A. Parameter specification
Function
Factory
Default
Parameter
Set Range
Instruction
Time of
Day
Rando
m
00:00～23:59
Control
Model
A-01
A-01
Down-flow regenerate on the day
although the available volume of
treated water drops to zero (0).
Regeneration starts at the
regeneration time.
A-02
Down-flow regenerate immediately
when the available volume of treated
water drops to zero (0).
A-03
Down-flow regeneration,
regeneration starts at the
regeneration time of the current day
when the available volume of treated
water less than the average water
consumption of last 7 days.
A-11
Up-flow regeneration, regeneration
starts at the regeneration time
although the available volume of
treated water drops to zero (0).
A-12
Up-flow regeneration immediate,
regenerate when the volume of
treated water drops to zero (0).
A-13
Up-flow regeneration, regeneration
starts at the regeneration time of the
current day when the available
volume of treated water less than the
average water consumption of the
last 7 days.
A-21
Filter Type, filter when the service
days reach to zero (0) and the current
time is matched with filter setting

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time.
Regenerati
on Time
02:00
00:00～23:59
Suit for A-01/03/11/13/21
Interval
Backwash
Times
00
0～20
Interval backwash times. For
example, F-01:indicate service 2
times, backwash 1 time (Only for
A-11/12/13)
Rinsing
Frequence
00
0～20
Rinsing added time. For example,
F-01:indicate rinse 2 times, service 1
time (Only for A-21)
Water
Treatment
Capacity
10m3
0～99.99 m3
Water treatment capacity in one circle
(m3) for：A-01/02/03/11/12/13
Backwash
Time
10min
0～99∶59
Backwash time (minute)
Brine &
Slow
Rinse
Time
60min
0～99∶59
Brine & slow rinse time (minute)
Brine Refill
Time
5min
0～99∶59
Brine refill time (minute)
Fast Rinse
Time
10min
0～99∶59
Fast rinse time(minute)
Maximum
Interval
Regenera-
tion Days
30
0～40
Regenerate on the day even though
the available volume of treated water
do not drop to zero (0).
Output
Control
Mode
01
01 or 02
Mode 01: Signal turn on start of
regeneration and shut off end of
regeneration. (Connection refer to the
Figure P4)
Mode 02: Signal available only
intervals of regeneration cycles and
in service. (Connection refer to the
Figure P4)

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B. Process Display (A-03 as example)
Illustration:
The display screen shows Figure M, indicates outage of power more
than 3 days. It reminds to modify the time of day.
The display screen shows Figure L when connected with power. At the
Service position show circulatory: Figure A/B/C/D.
The display screen shows Figure E at Backwashing position and show
as Figure F at the Brine and Slow Rinse position.
The display screen shows Figure G at Refill position and show as Figure
H at Fast Rinse position.
When control valve turns from a working position to another, the screen
shows Figure J.
System fault shows Figure I.
Operate process: Service→ Backwash →Brine & Slow Rinse→ Brine
Refill →Fast Rinse.

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C. Usage
After being accomplished installation, parameter setting and trail
running by professional, the valve could be put into use. In order to ensure
the quality of outlet water can reach the requirement, the user should
complete the below works:
①Ensure that there is solid salt all the time in the brine tank in the course
of using when this valve is used for softening. The brine tank should be
added the clean water softening salts only, at least 99.5% pure, forbidding
use the small salt and iodized salt.
②Test the outlet water and raw water hardness regularly. When the outlet
water hardness is unqualified, please press the and the valve will
temporarily regenerate again (It will not affect the original set operation
cycle.)
③When the feed water hardness change a lot, you can adjust the water
treatment capacity as follow:
Press and hold both and for 5 seconds to unlock the buttons,
press , enter program set mode, through and buttons to select
“Advanced setting”, press , enter “Advanced setting” item setting mode,
through and buttons to select “Set residual water”, press ,
through and to set the required value. Press and hear a sound
“Di”, then finish the adjustment. Press twice, and turn back to service
status.
The regeneration parameters have been set when control valve left
factory. Generally, it does not need to reset. If you want enquiry and modify
the setting, you can refer to the professional application specification.