Runxin 63518 User manual

Multi-functional Flow Control Valve for
Water Treatment Systems
63518(Old Model No.: N77A1)
63618 (Old Model No.: N77A3)
53518(Old Model No.: N77B1)
Instruction Manual
Please read this manual in details before using the valve
and keep it properly in order to consult in the future.
0WRX.466.511
International Patent Public No.:
WO 2006/007772
China Patent No.: ZL02220153.X,
ZL200420062895.3
USPatentNo.: 7549446
India PatentNo.: 232582
Russia Patent No.:2349819
South KoreaPatentNo.:10-0914137
Mexico Patent No.: 268581
Australia Patent No.: 2005263257
Philippine Patent No.: 1-2006-502553
Taiwan Patent No.:M287896

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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 and 3# injector for the standard configuration.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
I
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. Installation......................................................................................
2. Basic Setting & Usage .............................................................................
2.1. The Function of PC Board.............................................................
2.2. Basic Setting & Usage...................................................................
3. Applications..............................................................................................
3.1. 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: 63518-N77A1 /63618-N77A3/ 53518-N77B1
1
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.
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 0.2～0.6 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
0.2MPa, a booster pump must be installed before the water inlet.
It is suggested to install PPR pipe, corrugated pipe or UPVC pipe,
instead of TTLSG pipe. Keep the pipeline straight.
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.
We advise you to use M88×2 distributors. It is easy for disassembly.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
2
1. Product Overview
1.1. Main Application & Applicability
Used for softening、demineralization or filtration water treatment systems
N77A (DF for regeneration), suitable for
Ion exchange equipment, the raw water hardness ≤6.5mmol/L.
Boiler softening water system
RO pretreatment softening system, etc.
N77B (Filtration), suitable for swimming pool filter system.
Filtration system
Activated carbon filter or sand filter of RO pretreatment 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.
Two ways for installation
Use side-mounted connector to change the valve from top-mounted
to side-mounted. Screen is moveable.
No water pass the valve during regeneration in single tank type
Brine refill controlled by electronic ball valve.
During service, electronic ball valve will control to start the brine refill.
In order to short the regeneration cycle time.
For filtration system
Drain outlet is the same size as water outlet. Block the brine line
connector change the valve to N77B filter valve.
Manual function
Realize regeneration immediately by pushing “” at any time.
Long outage indicator
If outage overrides 3 days, the time of day indicator “” will flash to
remind people to reset new time of day. The other set parameters do not
need to reset. The process will continue to work after power on.
LED dynamic screen display
The stripe on dynamic screen flash, it indicates the control valve is
in service, otherwise, it is in regeneration cycle.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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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.
It can choose time clock type or meter type by program selection
Through the switch in control board ((Application refer to Page16) to
realize time clock type by day or by hour and meter type. (Attention: after
adjust the switch, the valve should be cut off the power then connect
again. Meter type valve have one more flow meter and cable then time
clock type valve.)
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.(Application refer to Figure
3-9)
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 each statu.
Remote handling input
This connector can receive external signal, used together with PLC,

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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and computer etc. to control the valve. （Application refer to Figure3-11）
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
Figure3-10)
All parameters can be modified
According to the water quality and usage, the parameters in the
process can be adjusted.
Four kinds of meter type can be selected (suit for N77A3)
Model
Name
Instruction
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. Regeneration mode is the same asA-01.
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.
Maximum interval regeneration days (Suit for N77A3)
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.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
5
1.3. Service Condition
Runxin Valve should be used under the below conditions:
Items
Requirement
Working
conditions
Water pressure
0.2MPa～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 turbidity
Softener(N77A)＜5FTU；
Filter(N77B)＜20FTU
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: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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1.4. Product Structure and Technical Parameters
A. Product dimension (The appearance is just for reference. It is
subjected to the real product.)
Remove the flow meter from N77A3, it will be N77A1. If block the
drain line connector of N77A3, it will be N77B.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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B. Technical parameter
Transformer Output: DC24V/1.5A
Model
Connector Size
Flow
Rate m3/h
@0.3MPa
Remark
Inlet/
Outlet
Drain
Outlet
Brine Line
Connector
Base
Riser
Pipe
N77A1
2″M
1.5″M
3/4″M
4-8UN
1.5″OD
(50mm)
18
DF softener，
by day
N77A2
DF softener,
by hour
N77A3
DF softener，
meter type
N77B1
2″M
1.5″M
3/4″M
4-8UN
1.5″OD
(50mm)
18
DF filter，by
day
N77B2
DF filter, by
hour
Remark: M—Male F—Female OD—Outer Diameters,
1.05OD=26.7 mm
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, 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.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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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 vibration circumstance, because above factors will cause the
system disorder.
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 (Take N77Atop-mounted as a sample)
①Install control valve
a. As the Figure 1-1 shows, select the
riser pipe with 50mm 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 mineral 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 mineral
tank.
●Avoid O-ring inside control valve falling out while rotating it on the
tank.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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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.
③Pipeline connection
a. As Figure1-3 shows, install a pressure gauge in water inlet.
b. Install sampling valves in inlet、outlet and pipelineA.B.C.D as showed
in Figure 1-3.
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

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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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 (N77A1, N77B1), there are
no step ②.
④Install drain pipeline (If no special requirement, the standard DLFC is
No.7703)
a. Based on the table on P29, for
N77A, if tank diameter is 900 mm,
install step d. and use the matched
DLFC. If the tank size bigger then
900 mm, you need to ask supplier
for another DLFC which doesn’t drill
hole. Install it as below steps.
b. According to matched tank
diameter size, to drill φ6 hole on the
corresponding quantity of DLFC.
c. Insert drain line flow control into drain hose connector, then crew it
into drain outlet, and lock it.
d. Glue the drain outlet with UPVC (DN40). Put drain outlet pipe to
sewer as showed in the Figure 1-4.
e. For filter valve N77B, there is no DLFC, install UPVC (DN40)
according to procedure d.
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.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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⑤Connect brine tube
a. As Figure1-5 shows, use UPVC (DN20) to connect brine valve with
brine line connector
Note:
● Keep brine line short and smooth. Elbow no more than four to
avoid bad brine.
●Brine valve must be installed.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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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
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

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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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: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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2.2. Basic Setting & Usage
A. Parameter specification
Function
Indica
tor
Factory
Default
Parameter set
range
Instruction
Time of
Day
Random
00:00～23:59
Set the time of day when use；“：”
flash.
Control
Mode
A-01
A-01
A-01
Regenerate on the day although
the available volume of treated
water drops to zero (0).
Regeneration starts at the
regeneration time.
A-02
Regenerate immediately when the
available volume of treated water
drops to zero(0).
A-03
Meter Delayed Regeneration type,
but by setting Resin Volume, Feed
Water Hardness, Regeneration
Factor, the controller will calculate
the System Capacity.
Regeneration mode same as
A-01.
A-04
Meter Immediately Regeneration
Type, but by setting Resin
Volume, Feed Water Hardness,
Regeneration Factor, the
controller will calculate the System
Capacity. Regeneration mode
same as A-02.
Service
Days
1-03D.
0～99 Days
Only for Time Clock Type,
regeneration by days
Service
Hours
1-20H.
0～99 Hours
Only for Time Clock Type,
regeneration by hours
Regener
ation
Time
02:00
02:00
00:00～23:59
Regeneration time；“：”light on

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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Resin
Volume
50L.
5000L.
20－500L.
Resin volume in brine tank (L)
Feed
Water
Hardness
Yd1.2
1.2
0.1－9.9
Feed water hardness (mmol/L)
Exchang
e Factor
AL.65
0.65
0.30－0.99
Relate to the raw water hardness.
When hardness is higher, the
factor is smaller.
Water
Treatmen
t
Capacity
80 m3
0～999.99 m3
Water treatment capacity in one
circle (m3)
Backwas
h Time
10 min.
0～99
Backwash time (Minute)
Brine &
Slow
Rinse
Time
60 min.
0～99
Brine &Slow rinse time (Minute)
Brine
Refill
Time
5 min.
0～99
Brine refill time (Minute)
Fast
Rinse
Time
10 min.
0～99
Fast rinse time (Minute)
Maximum
Interval
Regener
ation
Days
H-30
30
0～40
Regenerate on the day even
through the available volume of
treated water do not drop to zero
(0).
Output
Control
Mode
b-01
01
01 or 02
Mode 01: Signal turn on start of
regeneration and shut off end of
regeneration. (Connection refer to
the Figure on P3)
Mode 02: Signal available only
intervals of regeneration cycles
and in service. (Connection refer
to the Figure on P3)

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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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“” flash 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→Service.

MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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C. Usage
After being accomplished installation, parameter setting and trial
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 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 flash.
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 (Delayed regeneration type),