Runxin 63510 User manual

Multi-functional Flow Control Valve for
Water Treatment Systems
63510（Old Model：N74A1）
63610（Old Model：N74A3）
63510B（Old Model：N74B1）
63610B（Old Model：N74B3）
Instruction Manual
Please read this manual in details before using the valve
and keep it properly in order to consult in the future.
0WRX.466.510
International Patent No.：WO 2006/007772
China Patent No.：ZL02220153.X，
ZL200420078956.5
USPatentNo.：7549446
IndiaPatentNo.：232582
Russia Patent No.：2349819
SouthKoreaPatentNo.：10-0914137
Mexico Patent No.：268581
Australia Patent No.：2005263257
Philippine Patent No.：1-2006-502553
Taiwan Patent No.：M287896

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
Before the valve put into use, please fill in the below content so as
to help us to refer in the future.
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 Drain 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（02，03，04）
/
A-01
Water Treatment Capacity（Meter
Type）
m3
80
Service Days（Time clock type by
Days）
D.
03
Service Hours（Time clock type by
Hours）
H.
20
Regeneration Time
/
02∶00
Backwash Time
min.
10
Brine & Slow Rinse Time
min.
60
Brine Refill Time
min.
05
Fast Rinse Time
min.
10
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.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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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 dimension and parameter........................................................
1.5. Installation.............................................................................................
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. Interlock............................................................................................
C. Pressure Relief Output.....................................................................
D. Remote Handling Connector............................................................
E. Interlock System...............................................................................
F. Series System...................................................................................
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..........................................................................................

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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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 is turn to 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 fine 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 using 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 0.2～0.6 MPa. Failure to use this product under such
conditions voids the warranty.
If the water pressure exceeds 0.6 Mpa, a pressure reducing valve must
be installed before the water inlet. While, if the water pressure under
0.15 MPa, 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.
Advice to use M88*2 male thread distributor for top-mounted valve to
make convenience for disassembly.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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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.
Ion exchange equipment
Boiler softening water system
RO pretreatment softening system, etc.
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.
Variety of installation methods
Use side connector can change N74B from top mounted to side
mounted, and display board is removable.
No water passes the valve in regeneration in single tank type
Manual function
Realize regeneration immediately by pushing manual button at any
time.
Long outage indicator
If outage overrides 3 days, the time of day indicator “12:12”will flash to
remind people to reset new time of day. The parameters no need to be
reset for all the parameters are kept as before.
LED dynamic screen display
The stripe on dynamic screen flash, it indicates the control valve is in
service, otherwise, it is in regeneration cycle.
Buttons lock
No operations to buttons within 1 minute, button lock indicator light on

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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which represent buttons are locked. Before operation press and hold the
“ ” and “ ” buttons for 5 seconds to unlock. This function can avoid
incorrect operation.
It can choose time clock type or meter type by program selection.
Can realize interchange between time clock type by day or by hour
and meter type by dialing a switch on main control board. (Check figure on
P19) (Attention: After dialing the switch, it needs to reconnect the power.
The meter type product has one flow meter and flow meter cable, but the
time clock type doesn’t have.)
Four kinds of meter type can be selected (Suite for F74A3, N74B3)
Mode
Name
Instruction
A-01
Meter
delayed
regeneration
Regenerate on the day although the available volume
of treated water drops to zero (0). Regeneration starts
at the regeneration time.
A-02
Meter
immediate
regeneration
Regenerate immediately when the available volume of
treated water drops to zero (0).
A-03
Intelligent
meter
delayed
regeneration
Meter delayed regeneration type, but by setting resin
volume, feed water hardness, regeneration factor, the
controller will calculate the system capacity.
A-04
Intelligent
meter
immediate
regeneration
Meter immediate regeneration type, but by setting
resin volume, feed water hardness, regeneration
factor, the controller will calculate the system capacity.
Interlock Function
It has a function of interlock to realize only one valve in regeneration
but the other valves are in service while several valves parallel in system.
In multi-steps treatment systems such as RO pre-treatment, when several
valves are in series, there is only one valve in regeneration or washing to
ensure pass water all the times while different valves in regeneration or
washing. (Application refer to Figure 3-9)

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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Signal output
There is a signal output connector on main control board. It is for
controlling external wiring (Refer to Figure from Figure 3-1 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)
Pressure relief output
The valve will cut off feeding water to drain line when it switches in
regeneration cycles (Same as signal output b-02). Thus in some water
treatment system, e.g. Deep Well, one booster pump was installed on the
inlet to increase the system water feeding pressure, this cut-off will cause
pressure on inlet rising too fast to damage the valve. Pressure Relief
Output can be used to avoid this problem. (Application refer to Figure 3-10)
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.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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1.3. Service Condition
Runxin Valve should be used under the below conditions:
Items
Requirement
Working
conditions
Water pressure
0.2 MPa～0.6 MPa
Water
temperature
5℃～50℃
Working
environment
Environment
temperature
5℃～50℃
Relative
humidity
≤95%（25℃）
Electrical facility
AC100～240V/50～60Hz
Inlet water
quality
Water turbidity
＜5FTU
Water hardness
First Grade Na+＜6.5mmol/L；
Second Grade Na+＜10mmol/L
Free chlorine
＜0.1mg/L
Iron2+
＜0.3mg/L
CODMn
＜2mg/L(O2)
In the above table, First Grade Na+ represents First Grade Na+
Exchanger. Second Grade Na+ represents Second Grade Na+ Exchanger.
When the water turbidity exceeds the conditions, a filter should be
installed on the inlet of control valve.
When the water hardness exceeds the conditions, the outlet water
hardness will hardly reach the requirement of boiler feed water（0.03
mmol/L）. It is suggested to adopt second grade softener.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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1.4. Product dimension and parameter
A. Product dimension (The appearance is just for reference. It is subjected
to the real product.)

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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B. Technical Parameters
Model
Transformer
Output
Flow Rate
m3/h
@0.3 MPa
Regeneration
Type
Installation
Type
N74A1（63510）
DC24V, 1.5A
10
Time clock
type by days
Top-mounted
N74A3（63610）
Meter type
N74B1
（63510B）
DC24V, 1.5A
10
Time clock
type by days
Top-mounted
or
side-mounted
N74B3
（63610B）
Meter type
1.5. Installation
A. Installation 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 Water Inlet, Water Outlet, Drain Outlet, Brine Line
Connector.
B. Device location
①The 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.
⑤Please avoid to install the system in one Acid/Alkaline, Magnetic or
strong virbration circumstance, because above factors will cause the
system disorder.
⑥Do not install the filter or softener, drain pipeline in circumstance which

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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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 （Take N74A3 as an example）
①Install control valve
a. As the Figure 1-1 shows, select the
riser pipe with 50 mm OD, glue the
riser pipe to the bottom strainer
and put it into the mineral 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. Screw top strainer connector to
valve body with five pieces of
screws.
d. Screw the top distributor to the
valve.
e. Insert the riser tube into control
valve and screw tight control
valve.
Note:
●The length of riser tube should be neither higher 2mm nor lower
5mm 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 mineral
tank.
●Avoid O-ring inside control valve falling out while rotating it on the
tank.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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②Install 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.
Figure 1-2
③Pipeline connection
a. Install a pressure gauge in water inlet as figure 1-3.
b. Install valve A, B, C, D in inlet, outlet, inlet pipeline and outlet pipeline.
Valve D is sampling valve.
c. Install a check valve on outlet pipe.
d. Inlet pipeline should be in parallel with outlet pipeline. Support inlet and
outlet pipeline with fixed holder.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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Note:
●If the water outlet or water tank is installed higher than control valve
or parallel interlock system with multi-outlets, a liquid level controller
must be installed in brine tank. Or else, the water in water outlet or
water tank will flow backwards into brine tank when backwash.
●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 ( N74A1 or N74B1), there are no
step ②.
④Install drain pipeline
Insert drain line flow control into drain
outlet, use UPVC glue to connect drain
outlet with UPVC drain pipeline as
Figure 1-4 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 absorbing to the water treatment
equipment, such as showed in the Figure1-4.
⑤Connect brine tube
a. As Figure1-5 shows, slide 1/2″ brine tube hose connector over end of
brine tube.
b. Insert tube bushing into the end of brine tube.
c. Tighten brine draw hose connector onto brine line connector.
d. 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.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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2.Basic Setting & Usage
2.1.The Function of PC Board
A. Time of day indicator
Light on, display the time of day.
Light flash，remind you to reset the time of day if electrical service
interrupted 3 days more. (If electrical service interrupted within 3 days, it
doesn’t need to reset the time. )
B. Button lock indicator
Light on, indicate the buttons are locked. At this moment, press any
single button will not work. (No operation in one minute, will light on and
lock the buttons.)
Solution：Press and hold both and for 5 seconds until the light
off.
C. Program mode indicator

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Light on，enter program display mode. Use or to view all
values.
Flash enter program set mode. Press or to adjust values.
D. Manu/Confirm button
Press , light on, enter program display mode and use or to
view all values.
In program display mode, press , flash, enter program set mode,
press or and adjust values.
Press after all program are set, and then the voice “Di” means all
setting are success and return program display mode.
E. 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
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.
F. Down ▼ 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 lift the Button Lock status.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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2.2.Basic Setting & Usage
A.Parameter specification
Function
Indicator
Factory
Default
Parameter
set range
Instruction
Time of
Day
Rando
m
00:00～
23:59
Set the time of day when use；“：”
flash.
Control
Mode
A-01
A-01
A-01
Meter Delayed：Regenerate on
the day although the available
volume of treated water drops to
zero (0). Regeneration starts at
the regeneration time.
A-02
Meter Immediate: Regenerate
immediately when the available
volume of treated water drops to
zero (0).
A-03
Intelligent Meter Delayed: Meter
Delayed Regeneration type, but
by setting Resin Volume, Feed
Water Hardness, Regeneration
Factor, the controller will
calculate the System Capacity.
A-04
Intelligent Meter Immediate:
Meter Immediately Regeneration
Type, but by setting Resin
Volume, Feed Water Hardness,
Regeneration Factor, the
controller will calculate the
System Capacity.
Service
Day
1-03D
0～99 days
Only for Time Clock Type,
regeneration by days
Service
Hour
1-20H
0～99 hours
Only for Time Clock Type,
regeneration by hours

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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Regenerat
ion Time
02:00
02:00
00:00～
23:59
Regeneration time；“：” light on
Resin
Volume
20L
20L
5－500L
Resin volume in brine tank (L)
Feed
Water
Hardness
Yd1.2
1.2
0.1－9.9
Feed water hardness (mmol/L)
Exchange
Factor
AL.65
0.65
0.30－0.99
Relate to the raw water
hardness. When hardness is
higher, the factor is smaller.
Water
Treatment
Capacity
10m3
0～99.99 m3
Water treatment capacity in one
circle (m3)
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
Regenerat
ion Days
H-30
30
0～40
Regenerate on the day even
through the available volume of
treated water does not drop to
zero (0).
Output
Control
Mode
b-01
01
01 or 02
Signal turn on start of
regeneration and shut off end of
regeneration. (refer to P4)
Signal available only intervals of
regeneration cycles and in
service. (refer to P4)

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B.Process Display
Illustration:
In Service status, the figure shows A/B/C/D; In Backwash status, it shows
figure E/C; In Brine& Slow Rinse status, it shows F/C; In Brine Refill
status, it shows figure G/C; In Fast Rinse status, it shows figure H/C. In
each status, every figure shows 15 seconds.
Above displays are taking the Meter Type for example. For the Time
Clock Type, it shows the rest days or hours, such as 1-03D or 1-10H.
The display screen will only show “-00-” when the electrical motor is
running.
The time of day figure“” flashes continuously, such as “12:12” flash,
indicates long outage of power. It reminds to reset the time of day.
The display will show the error code, such as “-E1-” when the system is in
error.
Working process: Service→ Backwash→ Brine & Slow Rinse→ Brine
Refill→ Fast Rinse
C. Usage
After being accomplished installation, parameter setting and trail
running, 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 woks:
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

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16
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 at regular time. When
the outlet water hardness is unqualified, please press the and the
valve will temporary 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 lift the lock status.
Press , and the light on, then press , the digital area show the
control mode. If it shows A-01or A-02, press three times, and the digital
area will show the given water treatment capacity( if the control mode
shows A-03 or A-04, then press four times, the digital area will show the
feed water hardness); Press again, and digital flashes. Press or
continuously, reset the capacity value (or water hardness). Press
and hear a sound “Di”, then finish the adjustment. Press exit and turn
back the service status.
The estimation of water treatment capacity, you can refer to the
professional application specification. When select A-03 or A-04 intelligent
control mode, the control will automatically calculate the water treatment
capacity by setting resin volume, feed water hardness and regeneration
factor.
④For A-01 or A-03 control mode (Regeneration delayed type),
please pay attention to whether the time is current or not. If the time is not
right, you can adjust as follow: After lifting the lock status, press , the
and light on. Then press , the and hour value flash. Press
or continuously, reset the hour value; Press again, and minute
value flash. Press or continuously, reset the minute value;
Press and hear a sound “Di”, then finish the adjustment. Press exit
and turn back the 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.

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
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3. Applications
3.1.Softener Flow Chart