Yamato Scientific WG201 User Manual

Demineralizers

Still, water, model

WG201

First Edition

●

Thank you very much for buying Yamato Scientific AUTO
STILL series WG201 model.

●

For proper use of this unit, please read the instruction
manual and warranty thoroughly before operation. Keep
both for any future references.

Warning:

signs in this instruction manual prior to use.

Read and apprehend the important warning

Yamato Scientific CO.,LTD

Contents

For Safety Use................................................................................................................................................1

Explanation of Graphic Indication...............................................................................................1

Table of Symbol Mark..................................................................................................................2

Caution for Safety........................................................................................................................3

Table of Dangerous Element.......................................................................................................5

Safety Precaution ..........................................................................................................................................6

Installation and Preparation for Use............................................................................................6

Caution for Use............................................................................................................................................16

Identification of Parts..................................................................................................................................17

Body...........................................................................................................................................17

Piping Diagram..........................................................................................................................18

Operation System......................................................................................................................19

Operation System......................................................................................................................20

Operation Panel.........................................................................................................................21

Emergent Troubleshooting ........................................................................................................................22

Run Menu .....................................................................................................................................................23

Preparation and Check before Use...........................................................................................23

Run Menu ..................................................................................................................................24

Collection of Pure Water ...........................................................................................................25

Indication of Water Quality........................................................................................................26

Troubleshooting.........................................................................................................................27

Maintenance.................................................................................................................................................28

Check and maintenance ...........................................................................................................28

Exchange of Pre-Treatment Cartridge......................................................................................28

Exchange of Ion Exchange Resin Cartridge.............................................................................28

Cleaning Still..............................................................................................................................29

Exchange Heaters.....................................................................................................................33

Clean Water Supply Hose Filter................................................................................................34

Exchange Hoses .......................................................................................................................34

When you do not use the unit for a long time...........................................................................35

After-sales Service and Warranty..............................................................................................................36

Specifications ................................................................................................................. .............................37

Wiring Diagram ............................................................................................................................................38

For Safety Use

Explanation of Graphic Indication

This instruction manual and our products apply various graphic indications for safety use. Ignoring these
indicators or improper handling of the unit can cause such situations as indicated below. Please read and
apprehend the following contents.

Warning

Caution

(1) Serious injuries mean any injuries , electric shocks, bone fractures and poisoning causing
after effects or requiring hospitalization or long outpatient t r eat ment
(2) Injuries mean any injuries and electric shocks not requiring hospitalization or long outpatient
treatment.
(3) Damages on property mean any damages on facilities, machiner y, buildings, etc.

Warning indicates possibility of serious injuries (1) or death.

Caution indicates possibility of injuries (2) on person or damages on property ( 3).

Meaning of graphic indications

It shows conducts to be surely done.

It shows warnings or cautions.

It shows prohibited conducts.

‑1‑

Table of Symbol Mark

Warning

For Safety Use

General Warning

Caution

General Caution

Water only

Prohibition

Warning of High
Potential voltage

Caution of electric
shock

Caution of deadly

poison

Warning of High

Temperature

Caution of scald

Warning of drive

section

Caution of

water boiling

low-

Warning of

explosion

Caution of water

leak

General Prohibition Prohibition of fire

Compulsion

General

Compulsion

Ground the unit

Prohibition of
disassembling

Install on level

area

Prohibition of

touch

Pull electric power

plug

Fixed time check

or maintenance

‑2‑

Caution for Safety

Warning

Do not use this unit in flammable or explosive gas environments.

This unit is not explosive proof. Never use this unit in flammable or explosive environments to
prevent fire or explosion.
See Page5 for dangerous element → Table of Dangerous Element

Never fail to ground the unit.

Connect with the grounded outlet. If you do not have grounded outlet, use the adapter for
grounding that is non-standard accessories, and then be sure to ground the lead. Electric leak
could cause shock or fire.

Do not use this unit if malfunction occurs.

If smoke or any strange odor should disburse from the unit, switch off power to prevent fire or
electric shock.

For Safety Use

Do not bundle the power cable during use.

Overheat or fire can occur if the power code is bundled in use of the unit.

Do not damage the power code.

Forcibly bending, pulling or wrenching damages the power code, and can cause a fire or electric
shock.

Do not disassemble or remodel this unit.

Disassembling this unit can cause a fire, electric shock or other crisis. Never disassemble or
remodel this unit.

Do not touch hot area.

Pay attention not to get scalded. Some areas of the boiler are hot during or after operat ion. Make
sure if the boiler is cool enough before you start maintenance of the heater or other devices.

Fasten the tap when you do not use the unit

When you do not use the unit (in the nighttime or holidays) , certainly fasten the tap to prevent
the accident of water leak .

‑3‑

Caution for Safety

Caution

If it begins to thunder.

If it begins to thunder, switch the power off. Neglecting this can result in fire or electric shock.

Be careful for using the cleanser (Organosol).

The main ingredients of the cleanser (organosol) is sulfamic acid and the solution is about
PH1. Wear protective gloves, mask and glasses to handle the cleanser.Wash immediately by
pure water the cleanser splashing on body.

For Safety Use

‑4‑

Table of Dangerous Element

Nitroglycol, Nitroglycerin, Nitrocellulose, and other explosive nitric
esters.

Trinitrobenzene, Trinitrotoluene, Picric acid, and other explosive nitro
compounds.
Peracetic acid, Methyl ethyl ketone peroxide, Benzoyl peroxide, and
other organic peroxides.
Sodium azide, and other metallic azides
Metallic lithium, Metallic potassium, Metallic sodium, Yellow
phosphorus, Phosphorus sulfide, Red phosphorus, Celluloid, Calcium
carbide, Lime phosphate, Magnesium powder, Aluminum powder,
and other combustible metal powders and sodium dithionite
(hydrosulfite).
Potassium chlorate, Sodium chlorate, Ammonium chlorate, and
other chlorates.
Potassium perchlorate, Sodium perchlorate, Ammonia perchlorate,
and other perchlorates.
Potassium peroxide, Sodium peroxide, Barium peroxide, and other
inorganic peroxides.

Potassium nitrate, Sodium nitrate, Ammonia nitrate, and other
nitrates.

Explosive

Explosive

Substance

Combustible

Substance

Oxidant

For Safety Use

Flammable

Ignitable

Substance

Combustible

Gas

Sodium chlorite and other chlorites.

Calcium hypochlorite and other hypochlorites.
Ethyl ether, Gasoline, Acetaldehyde, Propylene Oxide, Carbon

disulfide, and other flammable substances with a flash point below
minus 30ºC.
Normal hexane, Ethylene oxide, Acetone, Benzene, Methyl ethyl
ketone, and other flamm able substances with a flash point between
minus 30ºC and 0
Methanol, Ethanol, Xylene, Pentyl acetate (amyl acetate), and other
flammable substance with a flash point between 0ºC and 30ºC.
Kerosene, Light oil, Turpentine oil, Isoamyl alcohol, Acetic acid, and
other flammable substances with a flash point between 30ºC and
65ºC
Hydrogen, Acetylene, Ethylene, Methane, Ethane, Propane, Butane
and other flammable gas at 15℃ degree and under 1 atmosphere.

o

C.

‑5‑

Installation and Preparation for Use

Warning

Do not use this unit in flammable or explosive gas environments.

●

This unit is not explosion proof. Never use this unit in flammable or explosive gas

environments. Electric arc occurs when you switch the unit “ON” and “OFF”, and can cause a
fire or explosion.

●

See Page 5 (Table of dangerous element) about flammable or explosive gas.

Safety Precaution

Select carefully the space to install the unit.

●

Do not install this unit in any of the following environments.

・

In inflammable or corrosive gas environments

・

In temperature beyond 35

・

In severe change in temperature

・

In very humid locations

・

Under direct sun

・

In frequently vibrating areas

Provide ample space surrounding the unit as indicated below.
Install the unit in the place with t he sink facilities if you can.

℃

‑6‑

Installation and Preparation for Use

Warning

Do not remodel this unit.

●

Never disjoint this unit to avoid electric shock.

●

There are some high-pressure areas inside the unit. Ask your seller or Yamato Scientific’s

Technical Service Department for internal adjustment or repair.

●

You must follow this instruction manual for your daily check or maintenance. Never remodel

the unit by yourself to prevent any troubles.

Safety Precaution

Install this unit on level areas.

●

If you do not, unexpected trouble can occur.

‑7‑

Installation and Preparation for Use

Warning

Ground the unit.

●

If you do not ground the unit, the earth leakage circuit breaker would not work in case of
electric leakage. Be sure to connect the ground lead to prevent electric shock.

●

Ground the ground lead to the ground wire or terminal of the power source. Contact an
electrician if you have no equipment for grounding.

●

Never connect with gas or water pipe.

Use exclusively the outlet.

●

Use an outlet with adequate capacity(more than 15 A).

●

If you connect to those without enough capacity, you would not take enough distilled water or

control properly the unit due to decrease of voltage from the power source. Connect the
power cord to the sufficient power source.

Necessary capacity： AC100V single-phase 15A

Precaution for connecting the power cord.

●

Check certainly that the circuit breaker of power source is “off “ and connect the power cord

for this unit. Power plug of this unit is three core cable. So the plug has grounding line. If you
do not have adaptable outlet (See Page2), use t he adapter for grounding t hat is non-standard
accessories. If you use it, be sure to ground the lead wire.

Safety Precaution

Precaution for proper use of the power cord

●

Do not bundle the power cord during operation, or overheat or fire can occur.

●

Do not process, or bend, wrench or pull forcibly the cord. Such conduct can cause a fire or

electric shock.

●

Do not damage the cord, by placing a desk or chair on it or placing it between objects. Such

conducts can result in fire or electric shock.

●

Do not place the cord near any stoves or heaters, or the cable coating can melt causing a fire

or electric shock.

●

If the power cord is damaged (core exposure or disconnection), turn immediately the circuit

breaker and the power supply off, and request the seller to change the power cord.
Neglecting this procedure can cause a fire or electric shock.

●

Connect the cord to an appropriate outlet.

‑8‑

Installation and Preparation for Use

Warning

Connect securely the water supply hose.

●

If you do not connect the joint securely, the water-supply hose or connector would come off,

causing water leak or spouting.

●

Use the connector and water-supply hose out of accessories for this unit. Install the unit on

the level and stable place near a tap and drainage.

Connect securely the water-supply hose in the following procedure.

Connect to a tap.

(1) Slide the joint sleeve of the socket ③ to the direction the arrow shows. Then you can

separate the connector and the hose.
(2) Loosen the plug ② from the ring ①.
(3) Fasten 4 screws ⑤ in the same way while pushing the ring ① lightly and evenly so that the

packing ⑥ touches evenly the tap.
(4) Turn right and fasten securely the plug ②.Then the packing ⑥ seals the tap and connector.
(5) Slide the sleeve to the direction the allow shows and insert the socket ③ securely into the

plug ②. Make sure the sleeve goes back to the original position when you loose your hold.

Then you can finish the connection.

Safety Precautions

‑9‑

Installation and Preparation for Use

Warning

Connection to the unit

(1) Remove the rubber cap from the plug ⑧.
(2) Slide the sleeve to the direction the arrow

shows, and insert securely the socket

into the plug ⑧.

Make sure the sleeve returns to the original

position when you loose your hold. Then,

you can finish the connection.

The socket has a built-in valve which would

not open for water run until the plug is

connected.

Connect the water-supply hose to a tap with drainage system.

●

Connect the hose to a tap with drainage
system. If you connect the water-supply
hose to a tap without drainage system,
damage on the hose could result in overflow
of water.

Safety Precautions

⑨

‑10‑

Installation and Preparation for Use

Caution

If drainage facility is away from the tap, use the Water Supply Unit, a non­standard accessory.

●

The “Water Supply Unit” includes all items
from the sleeve to the joint. Refer to the
instruction manual for the “Water Supply
Unit” about connection to the faucet and for
more information.

●

The “Water Supply Unit” has the structure to
keep tight connection to the pipe compared
to a normal hose set even when the water
pressure changes.

Safety Precautions

Joint

Joint

Keep the following pressure of water service.

●

Keep water pressure within 0.5 to 5×100kPa (0.5 to 5kgf/cm2) even for use at night.

●

Keep the same water pressure even when you use the non-standard accessory “Water Supply
Unit”,

‑11‑

Installation and Preparation for Use

Warning

Connect securely the drainage hose.

●

Connect securely the drainage hose. If the hose comes off due to incomplete connection,
water would leak inside the unit and might cause machine trouble.

(1) Take the drainage hose and the hose band out of accessories for the unit.

(2) Make sure the circuit breaker is off.

(3) Take out the rubber stopper from the drain .

(4) Pass the hose band over the hose. Then, insert the hose into the drain and fasten the

hose band.

Safety Precautions

Be careful to arrange the drainage hose.

●

Do not bend the hose nor make any convex part.

●

Arrange the hose lower than the drain of the unit. And also avoid the connection which make
water accumulate in the drainage hose or drain exit and become resistance for drain.

●

Lead the end of the drain hose to drainage capable of about 2

Drainage with larger capacity is required when boiler water is drained.

/min. of cooling water drained.

‑12‑

Installation and Preparation for Use

Warning

Check the temperature of drained cooling water.

●

The drained water sometimes exceeds 60℃ in drainage of boiler water. Do not touch the
water carelessly, or you can get scalded. Drain the water away from your w ork areas.

●

Drain hot water away from chloroethylene pipe, if used, in the drainage facility, or the drained
water can deteriorate the pipe. You must connect the drain trap, a non-standard accessory for
the unit, to the chloroethylene pipe in case the pipe temperature does not get lower than 60℃.
Use the drain trap of the non-standard accessory even under 60℃ when you do not use the
above-said pipe and joint.

Safety Precautions

If the drain pipe of the drainage facility does not get lower than 60

●

Connect the drain trap, a non-standard accessory for the unit.

●

The trap keeps the drained water for a while to cool the water naturally. In addition, the trap
mixes tap water and cooled drained water. Then mixed water is drained to drainage facility
after mixed water is cooled down.

●

If you want to know about the details of the drain trap, ask your seller or Yamato Service
Department.

AUTOSTILL

AUTOSTILL

AUTOSTILLAUTOSTILL

℃℃℃℃

.

Draintrap

Draintrap

DraintrapDraintrap
(non‑standardaccessories)

(non‑standardaccessories)

(non‑standardaccessories)(non‑standardaccessories)

Carrier

Carrier

CarrierCarrier
(non‑standardaccessories)

(non‑standardaccessories)

(non‑standardaccessories)(non‑standardaccessories)

‑13‑

Installation and Preparation for Use

Warning

Connect securely the Ion-exchange resin cartridge.(CPC-N)

●

Connect securely the ion-exchange resin cartridge(CPC-N) as follows.

●

If you do not connect securely, the connected hose would come off, causing water leak.

(1) Make sure the earth leakage circuit breaker or the unit is switched of f, and t he t ap is being

fastened.
(2) Use the ion-exchange resin cartridge out of accessories for the unit.
(3) Put the ion-exchange resin cartridge on the receive table.(See Fig.01)
(4) Fix the ion-exchange resin cartridge with the band of the receive table.(See Fig.02)

Safety Precautions

Fig.01 Fig.02
(5) Remove the rubber cap from the entrance and exit of the ion-exchange resin cartridge.

(6) Insert the coupler which marked “IN” into the entrance(left side) of the ion-exchange resin

cartridge as far as making sounds like “katchi”.
(7) Insert the coupler which marked “OUT” into the exit(right side) of the ion-exchange resin

cartridge as far as making sounds like “katchi”.

Sometimes the coupler is not easy to be inserted. If you insert the coupler hard, you may
break the insertion. Be careful not to insert the coupler curved.

(8) When you want to remove the coupler from the ion-exchange resin cartridge, it makes

easy to remove the coupler that y ou pull the coupler forward wit h pushing the black part of

the coupler deeply .

‑14‑

Installation and Preparation for Use

Warning

Connect securely the pre-treatment cartridge.

●

Connect securely the inside hose as follows.

●

If you do not connect securely, the connected hose would come off, causing water leak.

(1) Make sure the earth leakage circuit breaker or the unit is switched of f, and t he t ap is being

fastened.
(2) Use the pre-treatment cartridge ① out of accessories for the unit.
(3) Take off the caps on the IN and OUT of the cartridge ①.
(4) Open the unit front door. Then you can find one connecting hose with the IN coupler

and other with the OUT. Connect the respective hoses to I N and OUT of the cartridge ①.
(5) To connect each hose, slide the blue part ③ of the coupler back to the hose side, and fit

the end of the coupler to the respective end of the cartridge. Then release the blue part

③

.(See Fig.03)

(6) After you finish the connection, set the pre-treatment cartridge at the left side before the

distilled water tank, as the picture shows. Be careful not to bend the hose. (See Fig. 04)







Safety Precautions

②

②

①

Fig.03

Fig.03

Fig.03Fig.03

Fig.04

Fig.04

Fig.04Fig.04

‑15‑

Caution for Use

Warning

No use at occurrence of abnormality/troubleshooting

●

If smoke or any strange odor should disburse from this unit for any reasons, turn off
immediately unit source breakers, extract the electric power plug, and request the seller or
Yamato Scientific to check the unit. Neglecting this procedure can result in fire or electric
shock. Never try repairing the unit yourself. It is t oo dangerous.

If it begins thundering.

●

If it begins thundering, turn the circuit breaker off immediately.

●

Neglecting this procedure can result in circuit disorder, fire or electric shock due to

thunderbolts.

When you dispose of the unit.

●

Dispose of the unit as large-sized discarded article.

●

Do not leave the unit in child playground etc.

Be careful to use the cleanser..

●

Keep the cleanser in an airtight container, and avoid preservation in hot and humid areas.

●

The main ingredient of the cleanser “Organosol 10” is sulfamic acid (PH1 acid solution).

●

Wear protective gloves, mask and glasses to handle the cleanser.

●

Wash by pure water the cleanser splashing on body.

●

Neutralize cleanser after use with the neutralizer (sodium hydroxide etc. ).

●

Check by a PH indicator if cleanser is neutralized irrigation channel or fields.

●

Do not use the vacant cleanser container as a drink bottle.

●

Do not drain the cleanser into an agricultural irrigation channel or fields. The cleanser can kill
rice plants and other farm products.

When you do not use the unit in the nighttime or holidays

●

Turn the circuit breaker off.

Be sure to

●

The change of water pressure may cause some accident like water leakage.

●

Fasten the tap.

‑16‑

Body

valve

This drawing identifies parts.

Identification of Parts

valve

valve

valve

‑17‑

Piping Diagram

Identification of Parts

Decompressor
Pressure switch

Solenoid valve for cooling water
Solenoid valve for raw water
Pre-treatment cartridge

Ion-exchange resin cartridge(CPC-N)

Float receptacle

Float switch to detect boiler overheat

Float switch to control boiler water level

Float switch to control the heater

Valve to drain boiler water

Boiler

Heater

Condenser

Electrode for ion-exchanged water
Solenoid valve for boiler water supply
Solenoid valve to drain the initial distilled water
Solenoid valve to take ion-exchanged water
Solenoid valve to take distilled water
Ion-exchanged water outlet
Distilled water outlet
Distilled water tank

Float switch to check the water level
Filter
Pump to take distilled water
Drain for distilled water tank
Water level gauge

‑18‑

Operation System

(1) Supply and distillation of boiler water

Identification of Parts

●

Turn the circuit breaker on and push the power switch ,t hen,
solenoid valve for boiler water opens at the same time ,and then

When

heater becomes on to start distillation.

Following water supply, when

closing

(2)Flow of cooling water

float switch to control the heater

solenoid valve for raw water and

float switch controls water supply into the boiler by opening and

in the

solenoid valve for boiler water

solenoid valve for raw water and

water is supplied into

float receptacle finds water level sufficient,

.

boiler.

●

In distillation of boiler water ,cooling water flows and drains from the
water solenoid valve to

exchanged water , distillation stops and water flow and dr ain stops automatically.

condenser. When distilled water tank is full of water or taking ion-

decompressor, cooling

‑19‑

Operation System

●

(3)Collection of distilled water

Identification of Parts

For about 11mim. from the power switch pushed, distilled water condensed in condenser is
stored into
distilled water)

switch inside the tank is activated. After collecting distilled water and using some amount of distilled
water ,the distilled water is made automatically.

Distilled water stored is taken out by

take distilled water

(4)Collection of ion-exchanged water

distilled water tank, after initial water is drained by

opened. The unit judges water full and stops distillation when the highest float

pump(to take distilled water) through

and

distilled water outlet

.

solenoid valve (to drain the initial

solenoid valve to

●

Ion-exchanged water is taken out by through

pre-treatment cartridge

exchanged water

.

outlet

,

,

solenoid valve to take ion-exchanged water

Ion-exchange resin cartridge(CPC-N)

decompressor,

solenoid valve for raw water

, and

,

electrode for ion-

Ion-exchanged water

,

‑20‑

Operation Panel

Identification of Parts

②

④

③

①

Power switch

②

Operation indication lamp

③

Switch to take ion-exchanged

water

⑦

⑥
①

This is the switch for power supply. When you push the switch,
power becomes “ON”. If you push the switch again, then power
becomes “OFF”.

POWER : The green lamp is lit when the power source is ”ON”.
DISTILLATION : The green lamp is lit during distillation.
WATER LEAK : The red lamp is lit during water leak.
WATER CUT : The red lamp is lit during the interruption or
pressure decrease of original water flow.
OVER HEAT : The red lamp is lit during the heater overheating.

When you push this switch, the switch becomes “ON” to collect
ion-exchanged water. If you push the switch again, then the switch
becomes “OFF” to stop collection.

④

Lamp to indicate collection of

ion-exchanged water

⑤

Water quality indicator of ion-

exchanged water

⑥

Switch to take distilled water

⑦

Lamp to indicate collection of

distilled water

The green lamp is lit during collection of ion-exchanged water.
This indicator shows 5 levels of the electric conductivity of ion-

exchanged water with the lamp lit. The green lamp of left edge is lit
while the conductivity is the lowest. : while the water quality is the
best. When the electric conductivity become higher, the lamp that
is lit moves to the right lamp. W hen electric conductivity is more
than 10×10
the red lamp is lit during the ion-exchanged water collecting, it
means the life of the ion-exchange resin cartridge. Exchange it
with the new ion-exchange resin cartridge.

When you push this switch, the switch becomes “ON” to collect
distilled water. If you push the switch again, then the switch
becomes “OFF” to stop collection. When the amount of the water
in distilled water storage tank is less than 2
distilled water. The unit stops its operation automatically when the
collection reaches less than 2

The green lamp is lit during collection of distilled water.

-4

S/m (10μS/cm) , the red lamp of right edge is lit. If

you can not take

,

during collection,

‑21‑

Emergent Troubleshooting

Identification of “TROUBLE” / Identification of causes

This unit has self-diagnosis function. If any operational abnormalities or machine troubles should occur,
the alarm lamp in operation panel blinks. If this occurs, immediately disconnect the breaker and turn the
tap off.
See page 27 “Troubleshooting” ,if you need to know about t he det ails of identification of “TRO UBLE”.

LEAKAGE INTERRUPTION OVERHEATING

The LEAKAGE lamp blinks.

Water leakage

The INTERRUPTION lamp blinks.

Interruption or pressure decrease

of original water flow

The TROUBLE lamp also blinks.

Heater overheating

‑22‑

Preparation and Check before Use

Warning

1. Check water supply.

z

Check if the water-supply hose is securely connect ed.

z

Then, open the tap.

z

Make sure if no water leaks from the joint of the hose.

2. Check drain.

z

Check if the drain hose is securely connected.

z

Make sure if the hose is not bent or if there are no convex parts.

z

If the hose is bent, not only the unit does not run correctly, but also it may cause the accident of

water leak. Sometimes check if the drain is done correctly.

3. Check the power source.

z

Make sure that the power cable is connected to an appropriate out let .

4. Just after run

z

After turning on electricity initially or drain from distilled water tank, It takes much time to start

collecting of distilled water because of the air in pump or pipe.

z

Just after exchanging pre-treatment cartridge or Ion-exchange resin cartridge, it also takes much

time to start collecting of distilled water. And when you change the some of cartridge, drain about 5
liters to remove t he initial impurities.

Run Menu

‑23‑

Run Menu

Run menu as follows when you are ready for operation.

1. Power-on

1

Switch ON the earth leakage circuit breaker.

2 Push the POWER switch after a few seconds.

●

The POWER, an operational indication lamp of green

color, is lit.

●

The lamp which shows the quality of ion-exchanged

water in the indicator is lit.

Run Menu

2. The distillation starts after supply of boiler water.

●

The DISTILLATION, an operational indication lamp of
green color, is lit.

3. The distillation stops after distilled water tank is full of water.

●

The DISTILLATION, an operational indication lamp,
goes out.

‑24‑

Collection of Pure Water

Collection of ion-exchanged water

Run Menu

If you push the ION EXCHANGED WATER switch during
the distillation,

●

The DISTILLATION, an operational indication lamp,

goes out.

●

The lamp indicating collection of ion-exchanged water
blinks.

You can collect the water from ion-exchanged water
intake.

Collection of distilled water

If you push the DISTILLED WATER switch,

●

The lamp, indicating collection of distilled water, is lit.
You can collect the water from distilled water intake.
Check if the amount of water in the tank is more than 2

liters by watching water leve l gauge.
When the amount of water in the tank is less than 2 liters,

you can not take distilled water.

‑25‑

Run Menu

Indication of Water Quality

Measurement of Electric conductivity

The lamp of water quality examiner in the operation panel shows the electric conductivity at the exit of
ion-exchange resin cartridge. Use the indication as the standard for exchanging ion-exchange resin
cartridge. When you read the indication, be sure that the part of electrode is in the full of water; that is in
the flowing of Ion-exchanged water. Besides that the part of electrode is not in the water, the indication is
not correct for the influence of bubbles in the following case.

1. At the beginni ng of r unni ng or dur ing the unit stopped

2. Just after exchanging pre-treatment cartridge or ion-exchange resin cartridge

Electric conductivity

●

Electric conductivity shows how much electricity can pass. As water contains more electrolyte or
impurity, more electricity can pass through and the value of conductivity gets larger. On the contrary, the
value gets smaller as water contains less electrolyte.

●That means water is more pure as the conductivity is smaller.
However, the value of conductivity shows containment of electrolyte only but does not indicate any
containment of non-electrolyte such as organic, colloid, dissolved gas and microorganism. Therefore,
conductivity is just one of indicators to shows water purit y.

●

Resistivity is to indicate the same property as the electric conductivity shows. Resistivity is reciprocal to
electric conductivity. The larger resistivity indicat es higher purit y.

To calculate the resistivity from the electric conductivity ;

R

= Resistivity ρ=Electric conductivity

R［Ω･m］

R［Ω･m］R［Ω･m］

Pure water theoretically has the following value.

R

=18.3×10

ρ=0.055×10

4

Ω･

-4

S/m (0.055μS /cm) 25

=

ρ

    SSSSm］

m (18.3MΩ･cm) 25

[/

m］

m］m］

or

℃

℃

R［Ω･m］

1111

R［×10

R［×10 Ω･m］

R［×10R［×10

４４４４

Ω･m］

Ω･m］Ω･m］

=

    ×10

ρ

1111

−４

−４

−４−４

×10 SSSSm］

[/

×10×10

m］

m］m］

Quality of ion-exchanged/distilled water

●

Ion-exchanged water and distilled water have the following properties respectively. Select either water
according to your requirement.

It is ideal to use distilled water just after you collect. If you do not use the water soon, drain the distilled
water tank. When you keep distilled water in the tank for a while, drain the tank and store new distilled
water in the tank to use.

(1) Ion-exchanged water

Since almost all electrolyte are removed from ion-exchanged water, you can get water with the
lowest electric conductivity. But it is impossible to remove non-electrolytic impurity. Purity is a little
low with a new resin or at the re-start of flow after operation stops.

(2) Distilled water

The mode can remove averagely electrolyte and non-electrolyte except ammonia and other
substances with low boiling point.
However, water absorbs carbonic acid gas from air and creates carbonic gas during its production
process (in condensation and storage).
Accordingly, water quality is worse than ion-exchanged water and becomes weak acid (pH5 to 6)
with its electric conductivity about 1 t o 2× 10

-4

S/m 25℃ (1 to 2.5μS/cm).

‑26‑

Safety Device and Error Codes

Troubleshooting

Troubleshooting when “LEAKAGE “ to indicate water leak is lit.

(1) Turn the earth leakage circuit breaker in the right side of the unit OFF.
(2) After the defect is repaired, to re-start the operation, wipe the water at the bottom areas of the device

and dry it, and also remove the water leak detecting electrode and dry it.
(3)Set the electrode in the original position.
(4) Close the door .
(5) Turn the breaker ON, and push the POWER switch. Normal operation starts as the defect is repaired.

Troubleshooting when “INTERRUPTION “ to indicate interruption or decrease of water
pressure is lit.

(1) Make sure if the water pressure is normal and the tap is open (if the water comes to the unit)
(2) When the pressure of the raw water comes back, the unit returns automatically .

Troubleshooting when “OVERHEATING“ to indicate overheating is lit.

(1) Make sure if the cooling water is flowing.
(2) In case the cooling water is flowing, the heater is overheating or snapped.
(3) In that case, contact the seller or Yamato Scientific’s Technical Service Department.

‑27‑

Check and maintenance

Maintenance

Time for periodical check and maintenance

condition.)

Item to check and maintain Period Note

Exchange of pre-treatment
cartridge

Exchange of ion-exchange resin
cartridge

Cleaning the still 3 months
Cleaning the water supply hose
filter
Hose exchange 2 years Check the joint once a month.
Distilled water tank 3 months

Each 2 or 3 months

When the red lamp of
the water quality is lit .

6 months

(Check periodically the unit to use in stable

Durability:
About 5000

in Tokyo (with quality of 200×10
You need earlier exchange of the cartridge
when you use raw water with worse quality.
Durability:

About 650
200×10

You need earlier cleaning when you use
raw water with worse quality .

in case of using water service

of raw water with quality of

-4

S/m

-4

S/m)

Exchange of Pre-Treatment Cartr idge

Refer to Page 15 “Connect securely the pre-treatment cartridge” in the “Safety Precaution”.
Dispose of the old pre-treatment cartridge as nonflammable.
If you use the unit without changing the pre-treatment cartridge, the span of life of the ion-exchange resin
cartridge is made short.

Exchange of Ion Exchange Resin Cartridge

Because the keeping of the cartridge for long time makes the water quality and durability worse, prepare
the spare cartridge for the time to exchange. The standard of keeping is about four months.
Refer to Page 14 “Connect securely ion-exchange resin cartridge” in the “Safety Precaution”.
Dispose of the exchanged cartridge as nonflammable.
If you use the unit without changing the cartridge, stone attaches increasingly to the inside of the boiler
and heaters, which can decrease collection of distilled water and damage heat er s.

‑28‑

Maintenance

Cleaning Still

Removal the still

1.

Turn “OFF” the circuit breaker.

2.

Close the faucet.

3.

Make sure if the boiler cools down enough (about more than 30 min. later). Open the front door of this

unit and the valve to drain boiler water.

4.

Remove both hose connected to the ① boiler and ② condenser respectively. Twist the hose-band by

using tools, move the part of notches and you can remove the exit of distilled water and intake/drain of
boiler. When you remove them, be careful not to damage the glasses with giving excessive power.
Remove the nut of entrance and exit of cooling water by rotating counterclockwise. Be sure not to lose
the inside packing.

5. Take off the four connecting screws by cross screwdriver, and take off the left side board.

6. By cross screwdriver , loosen the four connecting screws in right side of terminal rack that is in the upper

right of framework made by removing the left side board. Pull the heater terminal.

‑29‑

Maintenance

Cleaning Still

Removal the still

7.(1) Pull the heater terminal from the grommet.
But do not bend or pull leads from heaters beyond the necessity.
(2) Remove the two screws of band for boiler fixed by cross screwdriver, and take off the boiler

condenser.

(3) Loosen the three rolled screw of metal fittings connection, and remove the boiler condenser.

Cleaning the boiler

1. Preparing scale detergent
(1) Prepare hot water with temperature between 50 and 60℃ about 2 liters.

(2) Mix well “Organosol 10” about 200g, an accessory for this unit, and hot water prepared (1).

2. Stop the hose joint in the lower part of the boiler (intake/drain of boiler) by rubber stopper etc.

3. Set the boiler at the stable place not to pour scale detergent from the boiler.

4. Pour the scale detergent from joint into the condenser with the heater connected.

5. Almost all scales are removed in about 4 to 5 hours. Drain the scale detergent from the boiler. If a lot of
scales in the boiler are not removed, add new scale detergent to repeat cleaning.
(1) If you finished removing the scales, take off the heaters from the boiler and wash them thoroughly by

the tap water. Wash them in the big beaker with full of water not to be wet of leads and drain.

Do not wash them by the tap water directly.

(2) If solid scales is not removed by the scale detergent, do the following treatment.

Boiler : Wipe off by brush etc.

Heater: Wipe off by soft material like chip or plastic etc.
The scales in the heater must be wiped equally and the solid scales must not be left partly. Extremely
the part only become a large heat resistance, therefore the heater may be broken.

‑30‑

Maintenance

Cleaning Still

Cleaning the condenser

1. Pour the scale detergent into the cooling pipe of the condenser .
(See page30 about the

2. If the cleanser comes out from the hose joint, stop the hose joint by silicone stopper etc. Almost all
fur is removed in about 4 or 5 hours.

3. After the scale detergent drained, wash the inside of condenser by tap water thoroughly.

About the treatment of the cleanser ( See page16 “Caution for Use”)

1. Wash the boiler and the heater a little early. The more the amount of the scales adhesion is, the more
difficult you remove it. And it may cause that the amount of taking distilled water decreases and the
heater is broken.

2. After washing, drain the cleanser from them and neutralize cleanser by the neutralizer. Check by a PH
indicator if cleanser is neutralized irrigation channel or fields. (the main ingredient of the scales
cleanser : sulfamic acid , PH of the solution : about PH1 acid)

3. Keep the cleanser in an airtight container, avoid preservation in hot and humid areas, and keep the
cleanser in cool and dark areas.

4. Wear protective gloves, mask and glasses to handle the cleanser.

5. Wash by pure water the cleanser splashing on body.

6. Do not use the vacant cleanser container as a drink bottle.

7. Do not drain the cleanser directly into an agricultural irrigation channel or fields. The cleanser can kill
rice plants and other farm products.

preparing scale detergent )

Installation of the boiler

1. Set the joint (to the condenser) level by the band for boiler fixed.
After you check that there is packing in the cap nut, insert it into the boiler with the characters “YK-W-3”
upward.

‑31‑

Maintenance

Cleaning Still

Installation of the boiler

2. Connect the four heater terminals with the terminal rack.

3. Install the left side board on the unit.

4. Insert the tube into supply and drain for boiler and fix it by hose band.

Installation of the Condenser

1. Insert the packing into the joint with boiler and condenser, and fix boiler and condenser in the same
direction by metal fittings connection.

2. Connect the each hose to entrance of cooling water, exit of cooling water , and exit of distilled water.

3. Close the valve to drain boiler water.

‑32‑

Maintenance

Exchange Heaters

●

If the heater snapped or was broken, exchange the heater as follows.(Refer to P.29〜32 for
exchanging)

1. Turn “OFF” the circuit breaker .

2. Close the faucet.

3. About more than 30 min. later after turned “OFF” the circuit breaker, open the front door of this unit and
the valve to drain boiler water.

4. Open the left side board, loosen the four connecting screws in right side of terminal rack, and pull the
heater terminal.

5. Pull the heater terminal from the grommet.

6. Remove the cap nut of the heater, and pull t he heat er.

7. Remove the packing and the cap nut from the broken heater.

8. Install the packing and the cap nut to the new heater.
At this time, do not touch it with empty hands not t o apply the finger marks.

9. Insert it into the boiler with the heater mark “YK-W-3” upward.

10. Insert the heater terminal into the grommet, and fix it in the terminal rack with checking the position of
installing heater lead.

11. Install the left side board on the unit.

12. Close the valve to drain boiler water.

13. Open the faucet after closing the front door.

14. Turn “ON” the circuit breaker.

15. Push the power switch in the operation panel, and the supply of boiler w at er st art s.

‑33‑

Clean Water Supply Hose Filter

(1) Close the faucet and remove the water supply

hose after turning off the unit breaker.
(2) Remove ② plug from ① ring with turning.
(3) Clean ⑦ filter in the plug by tap water.
(4) Push the filter by flat end of a pencil etc. from

the hole at the side of sleeve in case of terrible

stoppage.
(5) Brush the filter .
(6) Assemble the filter in the reverse procedure.

Maintenance

Exchange Hoses

●

Use the specified hose for exchange.

‑34‑

When you do not use the unit for a long time

If you do not use the unit for a long time, turn off the unit breaker for safety
and close the faucet. Water in the boiler and the distilled water tank
deteriorates its quality by the growth of unwanted bacteria and algae. Drain
as follow.

Draining boiler water

(1) Before draining the boiler water, turn off the unit

breaker , check if faucet is closed , and wait for

30 minutes or longer.
(2) Open the valve to drain the boiler water.
(3) Make sure if all water is drained from the boiler

and float receptacle.
(4) Close the boiler water draining valve. If the

drain valve remains open in the next use of the

unit, water would not flow into the boiler or start

distillation.

Maintenance

Draining distilled water

(1)Make sure if the unit breaker is turned

off. Open the front door.

(2) Pull out the hose to drain distilled water

set at the upper left on the back of front
door.

(3) Remove the silicone stopper to drain the

distilled water from the tank. Check in
advance the remaining water level in the
tank, and prepare receptacle for
drainage.

(4) Be careful not to set the drain hose

higher than the bottom level of the
distilled water tank, or more tank water
remains in the tank.

(5) Install the silicone stopper at the point

tightly,and Insert stopper securely in the
original folder after completing drainage.

‑35‑

After-sales Service and Warranty

When you request repair Warranty (attachment)

If any troubles should occur, note the error
code, stop the operation immediately. Turn
the power switch off, pull the power cord
out and contact the seller or Yamato
Scientific’s Technical Service Department.

(Necessary information)

●

Model number

●

Serial number

●

Date of purchase

●

See the warranty or nameplate on the unit

●

Detailed information on difficulties

●

The service man requests you to show the

warranty on his visit.

When you encounter the following

Fault indication Check points

STAND BY switch is not lit when the
breaker is turned on.

No water is supplied.

Water supply can not be stopped.

No water is supplied into the boiler.

Heater can not be turned on.
No cooling water flows.

Initial distilled water is not drained.
Distilled water is not stored.
Distillation would not stop.

No water is collected.

●

The seller or Yamato Scientific’s gives you the warranty.

Keep your warranty card for future references. Check the

name of distributor, date of purchase and any other
contents of warranty.

●

The term of warranty is one year limited commencing the
date of purchase. Repair is made without charge
according to the contents of warranty.

●

As for repair after expiration of the warranty period,
consult the seller or our Technical Service Department.

As long as the function of the unit can be maintained by

repair, we will repair the unit upon your request.

Minimum period to keep repair parts in stock

Minimum period to keep repair parts is 7 years limited after
we stop the production of this model of units. The repair
parts mean any necessary parts to maintain the
performance of the unit.

Is the power supply cord is securely connected with the outlet?

●

●

Is there any power failure?

●

Defect of solenoid valve to collect ion-exchanged or distilled water

●

Defect of solenoid valve to supply raw water.

●

Low pressure or interruption of water service.

●

Defect of pressure switch.

●

Defect of float switch.

●

Defect of solenoid valve to supply raw water.

●

Defect of solenoid valve to supply boiler water

●

Defect of float switch.

●

Stoppage in the pre-treatment cartridge.

●

Defect of float switch.

●

Heater disconnection.

●

Defect of solenoid valve for cooling water.

●

Defect of solenoid valve to drain initial distilled water.

●

Defect of solenoid valve to drain initial distilled water.

●

Defect in piping.

●

Defect of float switch.

●

Defect of solenoid valve to collect ion-exchanged or distilled water.

●

Defect of pump to take distilled water.

●

Defect in piping.

‑36‑

Specifications

Type WG201

Collection method ion exchange ⇒ Distillation

Pure water to collect Ion exchanged / Distilled water

Volume of distilled water to produce

Water flow to collect 1 /min. or more (Distilled / Ion exchanged water)

Boiler Super hard glass

Condenser Super hard glassStill

heater Ceramic heater 1.4kw

Distilled water tank Made of polyethylene 20

Raw water filter

Ion-exchange resin cartridge Cartridge type of one-touch connect (CPC-N)  Mix bed Resin 3

Water quality examiner

Water supply pump Magnet pump

Range of raw water pressure 0.5〜5 ×100 kPa（0.5〜5 kgf／cm

Power requirement（50／60 Hz

External dimensions *1

(W×D×H)

Weight About 40（kg

Supplemental functions

Accessories

Non-standard accessories

*1…The exterior dimensions exclude projected areas.

）

●

Water abnormality alarm

●

Automatic adjustment of cooling water level

●

Prevention of low-water boiling ●Overheat prevention

●

Water leak detector ●No water supply detector

●

Earth leakage circuit breaker ●Initial distilled water drainage

Water supply hose , Drain hose , Joint hose 1 (for each)
Instruction manual this book
Warranty 1
Scale detergent (1kg ) 1
Hose clamp 1
Pre-treatment cartridge 1
Ion-exchange resin cartridge 1
Type Part No.

●

Water intake unit -------------------------- (OWH10) 253686

●

Drain trap ----------------------------------- (OWI10) 253211

●

Pressure pump -------------------------- (OWJ10) 253220

●

WQ500/501 joint unit -------------------- (OWQ10) 253695

●

Carrier --------------------------------------- (AS200) 253175

●

WL100 joint unit (Joint unit G)----------- (OWL20) 253668

●

Joint unit of membrane filter ------------ (OWM30) 253667

●

Membrane filter ---------------------------- (OWN10) 253670

●

Air filter unit for tank----------------------- (OWT10) 253696

Activated carbon and hollow fiber membrane (0.1μｍ)

〜∞×

0

About 570×455(590:including intake)×730 （mm

Pre-treatment cartridge (ACF0827)

-4

10

S/m･25℃ (in case of electric conductivity)

About 1.8 /h

5 levels by lamp display

AC100V About 15A

）

2

）

）

‑37‑

Wiring Diagram

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Symbol Name of Parts Symbol Name of Parts Symbol Part of Name

E Electrode f or ion-exchanged water SV1 Solenoid valve to supply boiler water T1 Terminal
ELB Earth leak age circuit breaker SV2 Solenoid valve to supply raw water T2 Terminal
FS1 Float switch to control heater SV3
FS2 Float switch to control boiler water level SV5

Solenoid valve to drain initial distilled water
Solenoid valve to take ion-exchanged water

Tf1 Transformer

WL

Water leak detector
FS3 Float switch for boiler overheat SV6 Solenoid valve for cooling water X1 Relay
FS4 Float s witch to c heck water level SV7 Solenoid valve to take distilled water PS Pressure switch
FS8 Float switch to check water level OH Overheat detector NF Noise Filter

H Heater P Poup to take water

SSR SSR board

‑38‑