Hidrotermal HT-SAV02 User manual

Multi-functional Flow Control Valve for
Water Treatment System
HT-SAV02
USER MANUAL
Please read this manual in details before using valve and keep it properly in order
to consult in the future.

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. 0:00
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
Maximum 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.
1

Catalogue
Notice
........................................................................................................................................................................
3
1.Product Overview
................................................................................................................................................
4
1.1 Main Application & Applicability
...........................................................................................................................
4
1.2 Product Characteristics
............................................................................................................................................
4
1.3 Service Condition
.........................................................................................................................................................
6
1.4 Product Structure and Technical Parameters
......................................................................
7
1.5 Installation
......................................................................................................................................................................................
7
2.Basic Setting & Usage
................................................................................................................................................
10
2.1The Function of PC Board
......................................................................................................
10
2.2 Basic Setting & Usage
............................................................................................................
11
3.Applications
...............................................................................................................................
15
3.1 Softener Flow Chart
....................................................................................................................................
15
3.2 The Function and Connection of PC Board
...........................................................................................................
15
A. Signal Output Connector
............................................................................................................................
16
B. Interlock
......................................................................................................................................................
19
C. Pressure Relief Output
...............................................................................................................................
19
D. Remote Handling Connector
......................................................................................................................
20
E.Interlock System r
......................................................................................................................
20
F.Series System
......................................................................................................................
21
3.3 System Configuration and Flow Rate Curve
...........................................................................................
21
3.4 Parameter Settlement
................................................................................................................
22
3.5 Parameter Enquiry and Setting
.............................................................................................................................................
23
3.6 Trial Running
.............................................................................................................................................
27
3.7 Trouble - Shooting
....................................................................................................................................
28
3.8 Assembly Parts
........................................................................................................................................
31
4. Warranty Card
............................................................................................................................................
34
2

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, plsease add; if the resin is turn to reddish brown or broken, please
replace.
●Ensure that there is solid salt all the time in the brine tank in the course of
using,when this calve is used for softening. The brine tank should be added the
crystalline coarse salt only, at least 99.5% pure, forbidding use the small salt.
●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 using injector body as support to cary 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 5-45 ℃, water
pressure 0.2-0.6MPA. Failure to use this product under such conditions voids the
warranty.
●If the water pressure exceed 0.6Mpa, a pressure reducing valve must be installed in
front of the water inlet. While, if the water pressure under 0.2Mpa, a booster pump
must be installed in front of the water inlet.
●Do not let children touch or play, because careless operations may cause the
procedure changed.
●When the attached cables or transformer of this product are broken,they must be
changed to the one that is from our company.
●Advice to use M88 × 2 male thread distributor for top-mounted valve to make
convenience for disassembly.
3

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 pretreatmet 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-mounted connector can change HT-SAV02 from top mounted to side
mounted,and screen is movable.
▷No water passes the valve in regeneration in single tank type
▷Manual function
Realize regeneration immediately by pressing 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 other 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, which 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 which
represents 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 hours and meter type by
dialing a switch on main control board. (Check figure on PI8)(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 product doesn't have.)
▷Four kinds of meter type can be selected (Suit for HT-SAV02)
4

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.
▷Signal output
There is a signal output connector on main control board. It is applied 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 when start regeneration and shut off at the end of regeneration; b-02
Mode: Signal is available only at intervals of each status. Refer to below figure:
5
Backwash
Service
Fast Rinse
Backwash
Service
Fast Rinse
Signal output
Signal output
Brine Refill
Brine Refill
Brine &
Slow Rinse
Brine &
Slow Rinse

▷Remote handling connector
This connector can receive external signal, used together with PLC, and computer etc.
to control the valve remotely. (Application refer to Figure 3-11)
▷Pressure relief connector
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.
1.3. Service Condition
Valve should be used under the below conditions:
Items Requirement
Working conditions Water pressure 0.2MPa -0.6MPa
Water temperature 5℃-45℃
Working environment
Environment
temperature 5℃-45℃
Relative humidity ≤95%(25℃)
Electrical Facility AC100-240V/50-60Hz
Inlet water quality
Water turbidity <5 FTU
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.
6

1.4 Product dimension and parameter
A.Product dimension (The appearance is just for reference. It is subjected to the real
product)
B.Technical Parameters
Model Transformer
Output
Flow Rate m3/h
@0.3MPa Regeneration Type Installation Type
HT-SAV02 DC24V,
1.5A 10 Time clock type by days Top-mounted
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 closely 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 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 45℃.
⑦Install the system in the place where with the minimum loss in case of water leaking.
7
Inlet
G2
388.7
248.5
Brine Line
Connector
G1/2
Drain
G1
Flow Meter
Outlet
G2
220
355.6
39.48
18
Riser Pipe
1/2'' D-GB
(50mm) or 1.9''
OD(48.3)
Base
4''-8UN

C.Pipeline installation
① Install control valve
a. As the Figure 1 - 1 shows, select the riser pipe
with 50mm OD, take GB standard riser pipe as an
example 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 and round
it. 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.Insert the top strainer 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 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 filling floccules substance together with resin to the material tank.
●Avoid O-ring inside control valve falling out while rotating it on the tank.
②Install flow meter
8
Control Valve
Base O-ring
Riser Pipe O-ring
Top Strainer
Riser Pipe
Risen Tank
Buttom Strainer
Figurel 1-1
Figurel 1-2
Probe Wire
Flow Meter
Gasket
Inlet
Outlet

As Figure 1-2 shows, put the sealing ring into nut of flow meter, screw in water outlet;
insert the senor into flow meter.
③Pipeline connection
a.As figure 1-3 show, install a pressure gauge in water inlet.
b.Install valve A, valve B, valve C and valve D in the inlet, outlet, inlet and outlet pipeline.
The valve D is sampling valve.
c.Install a check valve on outlet pipeline.
d.Inlet pipeline should be in parallel with outlet pipeline.Support inlet and outlet pipeline
with fixed holder.
Note :
●If the water outlet or water tank is installed higher than control valve or is used in
parallel interlock system with multi-outlets, a liquid level controller must be
installed in brine tank or a check valve must be installed on outlet. 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,there are no step②.
④Install drain pipeline
Insert drain line flow control into drain outlet and connect the drain outlet with the ani-
mated nut,as Figure 1-3 shows.
9
Figure 1 - 3
Fixed Holder
Pressure Gauge
Valve B
Elbow Connector
Valve C
Valve D
Check Valve
Valve A
Fixed Holder
Drain Pipe
DLFC

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
being absorbed to the water treatment equipment.
Such as showed in the Figue 1-4.
⑤Connect brine tube
a.As Figure 1-5 shows,slide G1/2'' 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 into 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.
2. Basic Setting & Usage
2.1.The Function of PC Board
10
Figure 1 - 4
Figure 1 - 5
Nut
Brine Pipe
Tube
No leakage
Digital Area
Service
Dynamic Display Stripe
Backwash
Time of Day
Menu/Confirm
Menu/Return
Down
Up
Button Lock
Enquiry/Setting
Fast Rinse
Minute
Litre
Hour
CBM
Gallon
Day
Brine Refill
Brine & Slow Rinse
Digital Area

A. Time of day indicator
● Light on, display the time of day.
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. Press or to view all values.
● Flash and enter program set mode. Press or to adjust values.
D . Menu / Confirm button
●Press , light on, enter program display mode and press or to view all values.
●In program display mode, press , flash, enter program set mode, press 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 : if the outle water is
unqualified, 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
one.)
●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 valve, then it will return program display mode directly
without saving valve.
F . Down and Up
●In program display mode , press or to view all values.
●In program set mode, press to adjust values.
●Press and hold both and for 5 seconds to unlock the Button Lock status.
2.2. Basic Setting Usage
A. Parameter specification
Function Indicator Factory
Default
Parameter
Set Range Instruction
Time of Day Random 0:00~23:59 Set the time of day when use, “ : ” flashes.
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).
11

Control Mode A-01 A-01
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 Days 1-03D. 0~99Days Only for Time Clock Type,regeneration by days
Service Hour 1-20H. 0~99Hours Only for Time Clock Type,regeneration by hours
Regeneration Time 02:00 02:00 0:00~23:59 Rinsing time: " : " light on
Resin Volume 50L 50L 20~500L Resin volume in resin tank(L)
Feed Water
Hardness Yd1.2 1.20 0.1~9.9 Feed water hardness(mmol/L)
Exchange Factor AL0.65 0.65 0.3~0.99 Relate to the raw water hardness.When hardness
is higher,the factor is smaller.
Water Treatment
Capacity 80m30~999.9m3 Water treatment capacity in one circle(m3)
Backwash Time 10Min. 0~99 Backwash time (Minute)
Brine&Slow Rinse
Time 60min. 0~99 Brine& Slow rinse time(Minute)
Brine Refill Time 5min. 0~99 Brine refill time(Minute)
Fast Rinse Time 10Min. 0~99 Fast Rinse Time (Minute)
Maximum Interval
Regeneration
Days
H-30 30 0~40 Regenerate on the day even although the avilable
volume of treated water does not drop to zero(0).
Output Control
Mode b-01 01 01 or 02
b-01: Signal will turn on during the
regeneration.(Refer to P5)
b-02: Signal is only available at intervals of
regeneration cycles and in service.(Refer to P5)
12

B. Process Display
Illustration :
●In service status, the figure shows A/B/C/D; In backwash status, it shows figure E/I; In
brine&slow Rinse status, it shows F/I; In brine refill status, it shows figure G/I; In fast
rinse status, it shows figure H/I.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 onlu 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.
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 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 crustalline coarse
salt 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 after unlock the buttons and the valve will
temporarily regenerate again(It will not affect the original set operation cycle.)
13
Figure A
Figure B
Figure C
Figure D
Figure E
Figure F
Figure G
Figure H
Figure I

③When the feed water hardness changes a lot,you can adjust the water treatment
capacity as follow:
Press and hold both and for 5 seconds to unlock the buttons.Press , and
the lights on, then press , screen will show A-01 or A-02, then 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 raw
water hardness);Press again, and digital number flash, press or
continuously to 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 value,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,raw
water hardness and regeneration factor.
④For A-01 or A-03 control mode(Regeneration delayed type),please pay attention to
whether it is current time or not.If the time is not right,you can adjust as follow:
After unlock the buttons,press , the and light on.Then press
,the and hour value flash,press or continuously to reset the hour
value;Press again, and minute valus flash,press or continuously to
reset the minute valus;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.
14

3. Applications
3.1.Softener Flow Chart
3.2. The Function and Connection of PC Board
Opening the front cover of control valve, you will see the main control board and
connection port as below:
15
Figure 3-1A
Start
Service Status
Control
Valve
Brine Line
Connector
Inlet
Outlet
Drain
Inlet
Outlet
Drain
Backwash Status
Control
Valve
Brine Line
Connector
Inlet
Fast Rinse Status
Control
Valve
Brine Line
Connector
Outlet
Drain
Brine Refill Status
Control
Valve
Brine Line
Connector
Outlet
Drain
Brine & Slow Rinse Status
Control
Valve
Brine Line
Connector
Outlet
Drain
Brine Draw Status
Inlet
Inlet
Slow Rinse Status
Control
Valve
Brine Line
Connector
Outlet
Drain
Inlet
2: Time Type
ON: Meter Type
Flow Meter
Connector
Motor Connector
Signal Output
Connector
Pressure Relief
Connector
Remote Handing
Connector
Interlock
Connector CN7
Interlock
Connector CN8
Display Bpard
Connector
DC24V
Connector
I:Hour
ON:Day
1:N75
ON:N74
Locating Board
Connector
Meter /Time
Conversion Switch
Day/Hour
Conversion Switch
NC
COM
NO
Model
Conversion Switch

The main functions on main control board:
Function Application Explanation
Signal output
connector b - 0 1
Outlet solenoid valve
Used in strict requirements regarding no
hasd water flowing from outlet or
controlling the liquid level in water tank.
Inlet pump
Increase pressure for regeneration or
washing. Use the liquid level controller t
o control inlet pump to ensure there is
water in tank.
Signal output
connector b - 0 2 Inlet solenoid valve or inlet pump
When inlet pressure is high, it needs to
close water inlet to protect motor
when valve is rotating to protect motor.
Pressure relief
connector
Control the inlet bypass to release
pressure
When valve is rotating, pressure relief
connector
is opened to prevent pressure
increasing rapidly.
Interlock connector To ensure only one control valve
regeneration or wash in system .
Use in RO Pre-treatment, water supply
together but regeneration in turn, secon
d grade ion exchange equipment, etc.
Remote handling
connector
Receipt signal to make the control
valve rotate to next status.
It is used for on-line inspection system,
connected with PC to realize
automatically or remote controlling
valve.
A . Signal Output Connector
1) Control Outlet Solenoid Valve (Set b-01)
①Solenoid valve on outlet controls water level in water tank.
Instruction: If system strictly requires no hard water flowing from outlet in regeneration
cycle (Mainly for no hard water flows out when valve is switching or valve in backwash or
brine drawing positions), a solenoid valve could be installed on outlet, the wiring refer to
Figure 3-1.
16
Signal Output
Connector
Control Valve
Solenoid
Valve
Water
Tank
Liquid
Level Switch
Connect to Control Protection Case
Solenoid
Valve
Liquid
Level
Switch
Figure 3-1 wiring fo solenoid valve on outlet

Function:
When valve is in service status, if soft water tank is short of water, solenoid valve will
open to supply soft water, but if water tank has enough water, solenoid valve will close,
so no soft water is supplied to the tank.
When the valve is in backwash status, there is no signal output. So solenoid valve is
closed, and no raw water flows into soft water tank.
②Control Inlet Solenoid valve(Set b-02)
Instruction: When inlet pressure exceeds 0 . 6 MPa, install a solenoid valve on inlet.
Control mode is b-02. Pressure is relieved when valve switching, the wiring refer to
Figure 3-2. As Figure 3-3 shows, it also can use the pressure relief port to work.
Function :
When inlet pressure is high, install a solenoid valve on inlet to ensure valve switches
properly. The solenoid valve will open when valve is exactly at status of Service,
Backwash, Brine Draw& Slow Rinse, Brine Refill and Fast Rinse. When valve is
switching, solenoid valve is closed, no water flows into valve to ensure valve switching
properly. It could prevent the problem of mixing water and water hammer.
Use interlock cable to realize valves in parallel and series in same system which is
suited for RO pretreatment system or second grade Na+ system. The Wiring refer to
Figure3-4；
17
Signal Output
Connector
Control Valve
Solenoid Valve
Water Inlet
Water Outlet
Water Inlet
Control Valve
Signal Output
Connector
Solenoid
Valve
Figure 3-2 Wiring of Solenoid valve on Inlet
Figure 3-3 Wiring of Pressure Relief Port
Water Inlet
Signal Output
Connector
Valve 1
Valve 3
Interlock
Cable
Interlock
Cable
Connect to
Control
Protection
Case
Valve 2
Figure 3-4 Wiring of Solenoid Valve in Inlet
Water Outlet
Connect to Control
Protection Case

2) Liquid Level Controller controls Inlet Pump (Two-phase motor) (Set b-01)
Instruction: For the system using underground water or middle-tank supplying water,
users can turn on and turn off the pump by operating the switch of liquid level controller
and control valve. The wiring refer to Figure3-5:
Function:
When valve is in service status, if water tank is short of water,pump starts working, but if
water tank has enough water, the switch of liquid level controller is closed, so pump
doesn't work.
When valve in generation cycle, inlet always has water no matter what is water condition
in water tank. As valve no water pass outlet in regeneration cycle, it ensures no water fill
into brine tank.
A liquid level switch at the top opeing of well or in middle water tank in RO system
protects pump from working without water in case of out of raw water.
3)Liquid Level Switch in Water Tank Contols Inlet pump(Three-phase.Figure 3-6)
(Set b-01)
18
Control Valve
Signal Output
Connector
Control Valve
Well
Liquid
Level
Pu-
mp
Water
Tank
Liquid
Level Switch
Connect to Control Protection Case
Figure 3 - 5 Wiring of Liquid Level Controller Controlling Inlet Pump
Connect to Control Protection Case
Liquid
Level Switch
Water
Tank
Control Valve
Signal Output
Connector
Liquid
Level Switch
Well
Pu-
mp
Figure 3 - 6 Wiring of Liquid Level Switch in Water Tank Controls 380V Inlet Pump

4 ) Control Inlet Booster Pump (Set b - 01 or b-02)
Instruction: If inlet water pressure is less than 0.2 MPa, which makes backwash or brine
drawing difficult, a booster pump is suggested to be installed on inlet.Set control mode
as b-01. When system in regeneration cycle, booster pump opens, the wiring refer to
Figure 3-7. If the booster pump current is bigger than 5A, system need to install an
contactor, the wiring refers to Figure3-8.
B. Interlock
Instruction: In the parallel water treatment system, it ensures only one valve in regenera
tion or washing cycle and (n-1) valves in service, that is, realizing the function of
supplying water simultaneously and regenerating individually.
In the series and parallel water treatment system(Second grade Na+ exchanger or RO
pretreatment system), it ensures only one valve in regeneration or washing cycle and
there is / are water(s) in service. The wiring refer to Figure 3-9.
Note:Use interlock cable to connect CN 8 to CN 7 on next valve in the loop.
One system with several valves, if interlock cable is disconnected, the system is divided
into individual systems.
C. Pressure Relief Connector
The valve will cut off feeding water to drain line when it switches in regeneration cycles.
Thus in some water treatment system, e.g. deep well, one boooster 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. The wiring refer to Figure3-10
19
Pump
Contactor
Pump
Figure 3 - 8 Wiring of Booster Pump on Inlet
Figure 3 - 7 Wiring of Booster Pump on Inlet
Interlock Cable
Interlock Cable
Plug Cable in Socket
of Same Color
Figure 3 - 9 Network System Wiring with Interlock Cable