Page 1
Water Purifier, Auto Still
Model
WG 203
Instruction Manual
- First Edition -
Yamato Scientific America Inc．
Santa Clara，CA
Printed on recycled paper.
Thank you for purchasing "Auto Still, WG 203"
of Yamato Scientific Co., Ltd.
To use this unit properly, read this "Instruction
Manual" thoroughly before using this unit.
Keep this instruction manual around this unit
for referring at anytime.
WARNING!:
Carefully read and thoroughly understand the
important warning items described in this
manual before using this unit.
Page 2
Contents
Cautions in Using with Safety ............................................................... 1
Explanation .................................................................................................................. 1
Table of Illustrated Symbols ......................................................................................... 2
Fundamental Matters of "WARNING!" and "CAUTION!" .............................................. 3
Before Using this unit ............................................................................ 4
Requirements for Installation ....................................................................................... 4
Description and Function of Each Part .............................................. 12
Main Unit ................................................................................................................... 12
Piping System View ................................................................................................... 14
Principle of Operation ................................................................................................ 15
Control Panel ............................................................................................................. 17
Operation Method ................................................................................ 18
Setup and Check before Use ..................................................................................... 18
Operation Procedure ................................................................................................. 19
Sampling of Pure Water ............................................................................................. 20
Display of Water Quality ............................................................................................ 21
Handling Precautions .......................................................................... 22
Maintenance Method ............................................................................ 23
Daily Inspection and Maintenance ............................................................................. 23
Maintenance Method ............................................................................ 24
Washing of Distiller .................................................................................................... 24
Replacement of Heater ................................ .............................................................. 28
Washing of Water Supply Hose Filter ......................................................................... 29
Replacement of Hose ................................................................................................ 29
Long storage and disposal .................................................................. 30
When not using this unit for long term / When disposing ............................................ 30
In the Event of Failure… ...................................................................... 33
Failure indication and Its Contents ............................................................................. 33
Remedy for Trouble ................................................................................................... 35
Trouble Shooting ....................................................................................................... 36
After Service and Warranty ................................................................. 37
Specification ......................................................................................... 38
Wiring Diagram .................................................................................... 39
Reference ............................................................................................. 40
List of Dangerous Substances ................................................................................... 40
Page 3
1
Cautions in Using with Safety
Explanation
MEANING OF ILLUSTRATED SYMBOLS
Various symbols are used in this safety manual in order to use the unit without
danger of injury and damage of the unit. A list of problems caused by ignoring
the warnings and improper handling is divided as shown below.Be sure that you
understand the warnings and cautions in this manual before operating the unit.
WARNING!
If the warning is ignored, there is the danger of a problem that
may cause a serious accident or even fatality.
CAUTION!
If the caution is ignored, there is the danger of a problem that may
cause injury/damage to property or the unit itself.
Meaning of Symbols
This symbol indicates items that urge the warning (including the caution).
A detailed warning message is shown adjacent to the symbol.
This symbol indicates items that are strictly prohibited.
A detailed message is shown adjacent to the symbol with specific actions not to
perform.
This symbol indicates items that should be always perf ormed.
A detailed message with instructions is shown adjacent to the sy mbol.
Illustrated Symbols
Page 4
2
Cautions in Using with Safety
Table of Illustrated Symbols
Warning
Warning,
generally
Warning,
high voltage
Warning,
high temperature
Warning,
drive train
Warning,
explosive
Caution
Caution,
generally
Caution,
electrical shock
Caution,
scald
Caution,
no road heating
Caution,
not to drench
Caution,
water only
Caution,
deadly poison
Prohibit
Prohibit,
generally
Prohibit,
inflammable
Prohibit,
to disassemble
Prohibit,
to touch
Compulsion
Compulsion,
generally
Compulsion,
connect to the
grounding
terminal
Compulsion,
install on a flat
surface
Compulsion,
disconnect the
power plug
Compulsion,
periodical
inspection
Page 5
3
Cautions in Using with Safety
Fundamental Matters of "WARNING!" and "CAUTION!"
WARNING!
Do not use this unit in an area where there is flammable or explosive gas
Never use this unit in an area where there is flammable or explosive gas.
This unit is not explosion-proof. An arc may be generated when the power switch is turned on or off,
and fire/explosion may result. (Refer to Page 40 "List of Dangerous Substances".)
Be sure to connect grounding wire.
Connect to grounded plug socket. If no grounded plug socket is available, be sure to connect
grounding lead by use of ground adapter attached in nonstandard. Failure to do so could cause
electric shock or fire.
If a problem occurs
If smoke or strange odor should come out of this unit for some reason, turn off the power key right
away, and then turn off the circuit breaker and the main power. Immediately contact a service
technician for inspection. If this procedure is not followed, fire or electrical shock may result. Never
perform repair work yourself, since it is dangerous and not recommended.
Do not use the power cord if it is bundled or tangled
Do not use the power cord if it is bundled or tangled. If it is used in this manner, it can overheat and
fire may be caused.
Do not process, bend, wring, or stretch the power cord forcibly
Do not process, bend, wring, or stretch the power cord forcibly. Fire or electrical shock may result.
Do not disassemble or modify this unit
Do not disassemble or modify this unit. Fire or electrical shock or failure may be caused.
Do not touch hot portion
Boiler may be hot in some portion in operation or immediately after operation. Be aware of burns.
When performing maintenance of heater etc., ensure that the boiler is cooled down beforehand.
Close the tap when unit is out of service
When unit is out of service (at night or on holiday), be sure to close the tap so as to avoid water leakage
accident.
CAUTION!
During a thunder storm
During a thunderstorm, turn off the power key immediately, then turn off the circuit breaker and the main
power. If this procedure is not followed, fire or electrical shock may be caused.
Exercise care in handling washing liquid (Orgazor)
Principal component of washing liquid (Orgazor) is sulfamic acid, which is acidic almost equal to water
solution PH:1. Use protective tool (gloves, mask, and glasses) in handling. When it is touched by
human body, immediately wash it away with clean water.
Page 6
4
Before Using this unit
Requirements for Installation
WARNING!
1. Always ground this unit
Connect the power plug to a receptacle with grounding connectors.
Do not forget to ground this unit, to protect you and the unit from electrical shock in case of
power surge. Choose a receptacle with grounding connectors as often as possible.
Do not connect the grounding wire to a gas pipe, or by means of a lightning rod or telephone
line. A fire or electrical shock will occur.
2. Choose a proper place for installation
Do not install this unit in a place where:
Rough or dirty surface.
Flammable gas or corrosive gas is generated.
Ambient temperature 35C and above or 5C and below.
Ambient temperature fluctuates violently.
There is direct sunlight.
There is excessive humidity and dust.
There is a constant vibration.
Not horizontal surface.
The power source is instable.
Keep space around each product above the range shown below. Install units within sink
equipment if possible.
10cm or more
Front side
10cm or more
10cm
or more
10cm
or more
3. Do not use this unit in an area where there is flammable or explosive gas
Never use this unit in an area where there is
flammable or explosive gas. This unit is not
explosion-proof. An arc may be generated
when the power switch is turned ON or OFF,
and fire/explosion may result. (To know
about flammable or explosive gas, refer to
Page 40 "List of Dangerous Substances".)
Page 7
5
Before Using this unit
Requirements for Installation
4. Do not modify
Never disassemble this unit.
This unit has high voltage inside in some
portion, which may cause electric shock.
Contact dealers or Yamato Scientific Co.,
Ltd. sales office for adjusting or repairing
inside.
In routine maintenance and inspection,
follow the procedure described in the
instruction manual. Do avoid
modification by customer because it may
lead to trouble.
5. Installation on horizontal surface
Set this unit to the flattest place. Setting this
unit on rough or slope place could cause the
unexpectible trouble or malfunction.
The weight of main unit is approximately 48kg.
Carry and install the equipment carefully by
two or more persons.
6. Choose a correct power distribution board or receptacle
Use a plug socket conforming to electric capacity (capacity 15A or greater).
When power capacity is insufficient, sampling of distilled water goes short, and normal control
is disabled by fall of power voltage. Connect to power equipment having sufficient power
capacity.
Electric capacity:
115V AC Single phase 13A
7. Handling of power code
Do not entangle the power cord. This will cause overheating and possibly a fire.
Do not bend or twist the power cord, or apply excessive tension to it. This may cause a fire
and electrical shock.
Do not lay the power cord under a desk or chair, and do not allow it to be pinched in order to
prevent it from being damaged and to avoid a fire or electrical shock.
Keep the power cord away from any heating equipment such as a room heater. The cord's
insulation may melt and cause a fire or electrical shock.
If the power cord becomes damaged (wiring exposed, breakage, etc.), immediately turn off the
power at the rear of this unit and shut off the main supply power. Then contact your nearest
dealer for replacement of the power cord. Leaving it may cause a fire or electrical shock.
Connect the power plug to the receptacle which is supplied appropriate power and voltage.
Page 8
6
Before Using this unit
Requirements for Installation
8. Connection of power cord
Always ensure that breaker on power unit side is "Off" before connecting power cord. Power
plug of this unit uses 3-core cord including grounding wire, and the plug is grounded type. If
your plug socket is not compatible (2P), use a ground adapter attached in nonstandard. In
using ground adapter, be sure to ground a grounding lead.
9. Observe the specified pressure range of raw water from waterworks
Apply the range of city water pressure between 0.5 X 100kPa and 5 X 100kPa (0.5 - 5kgf/cm2)
including nighttime.
Range of raw water pressure is the same when "Water Supply Port Unit" (optional accessory)
is used.
10. Connect the water supply hose securely
If not connecting the water supply hose securely, the water supply hose or connection port
may be disconnected, resulting in water leakage such as water bursting forth.
Take the connection port body and supply hose out of attachments to the unit. Install the unit
on a horizontal and stable place nearby tap and sink.
11. Connect the tap side
1. Slide the sleeve of socket ③ on connection port side in the arrow direction, then connection
port body and water supply hose can be separated. There separate the two parts.
2. Once loosen the plug ② from the ring ①.
3. Tighten the 4 mounting screws ⑤ uniformly while pressing the ring ① slightly and uniformly
to make the packing ⑥ in flat contact with water tap. If the tap is a chemical tap, adjust the
position so that the mounting screw is located at the bottom valley of tap nipple as shown.
4. Turn the plug ② clockwise to tighten securely. This will allow the tap and connection port to
be sealed by packing ⑥.
5. Insert the socket ③ securely to the plug ② with the sleeve slid in the arrow direction. The
sleeve returns to the original position when released, and then connection is completed.
In case that the socket is removed, the valve attached on the connection side of the main unit
stops the flow of water.
Tap
Connection
port body
Socket on
connection
port side
Water supply
hose
Water supply port
Sleeve on water
supply port
Connection Port Body
①Ring
②Plug
③Socket
④Spacer
⑤Mounting Screw
⑥Packing
⑦Filter
One-touch
Joint
④ ⑤ ⑥
⑦ ① ②
③
Tap
Sleeve
Water supply hose
Page 9
7
Before Using this unit
Requirements for Installation
12. Connection on body side
1. Remove the rubber cap from the water supply port plug
⑧.
2. Insert the socket ⑨ securely to the plug ⑧ on body
side with the sleeve slid in the arrow direction. The
sleeve returns to the original position when released,
and then connection is completed. The socket
contains a valve inside, which opens only when the
socket is connected by plug; otherwise, water is not fed
because this valve does not open.
13. Connect the water supply hose to the tap provided with sink equipment
If the water supply hose is
connected to a tap without
sink equipment, flood damage
may be caused when water
supply hose is disconnected
or damaged; therefore be
sure to connect to a tap
having sink equipment.
Tap
Water supply hose
Socket on
connection
port side
Connection port Body
Sink
⑧
⑨
Body side
Page 10
8
Before Using this unit
Requirements for Installation
CAUTION!
14. When the sink equipment is remote from water tap, use "Water Supply Port Unit"
(optional accessory)
"Water Supply Port Unit" is designed to loosen the connection to the tap harder than the set of
standard water supply hoses when water pressure fluctuates.
15. In case that there is no tap
In case that there is no tap, use appropriate joint shown in the optional "Coupler joints for feed
water".
16. Connect the drain hose securely
If the drain hose is not connected securely, it may be disconnected, leaking water in the unit,
or leading to trouble of system.
1. Pick up the drain hose (with elbow) and the hose clamp from the main unit accessories.
2. Always make sure that the earth leakage breaker of the unit is "OFF".
3. Remove the rubber stopper from the outlet of the drain port hose on the main unit.
4. Push the hose clamp into the elbow of the drain hose, and next, put the elbow into the drain
outlet hose of the main unit, then tighten the hose clamp securely.
5. Pull the hose out from the drain hose-end outlet at right/left or backside of the main unit.
Hose
clamp
Drain port hose
on the main unit
Elbow
Drain hose (accessory)
Page 11
9
Before Using this unit
Requirements for Installation
WARNING!
17. Use care in routing of drain hose
Do avoid making bend or projection of drain hose.
In case that the drain hose is bent and the drain cannot be performed, back-flow or breakage
of the cooling hose might occur.
Place the drain hose lower than the drain port of this unit. Further, avoid piping which allows
paddle in the hose or at the hose outlet, because it is a resistance against drain.
Place the end of drain hose where drain is allowed. When distilled water is being prepared,
cooling water is drained approx. 2 liters/min. Also drain further increases when boiler water is
drained, and sufficient drain equipment is required.
18. Check the drain temperature of cooling water
Drain temperature may exceed 60℃ in drainage from boiler. Drain to a place remote from
working environment not to be touched easily because there is a danger of burns.
High-temperature cooling water could flow out. If vinyl chloride tube is used for the water
drain unit of the sink, such a tube could deteriorate. Water should be drained to a place away
from the drain tube of the sink. Even if VP tube (JIS K6741) is used for the vinyl chloride
tube, DV-RR joint is used for the joint, and even if insert socket (JIS K6739) is used, the water
drain trap in the nonstandard options should be used when the control temp. cannot be
lowered (60℃ or lower). Even if the drain temperature is 60℃ or lower, and if the
above-mentioned tubes and joint are not used, the drain trap in the nonstandard options
should be used.
19. When drain temperature of sink equipment does not fall under 60℃
Use a drain trap (optional accessory).
Drain trap makes temperature fall by accumulating cooled drain water temporarily. Further, it
mixes city water and cooled-down drain water, makes mixed water temperature fall, then lets
drain to sink equipment.
Contact your dealer or Yamato Scientific sales office for detail of drain trap.
Page 12
10
Before Using this unit
Requirements for Installation
20. Install the ion exchange resin cartridge (CPC-S) securely
Install the ion exchange resin cartridge (CPC-S) following the procedure shown below.
Connect securely because insecure connection may cause water leakage.
1. Make sure that the earth leakage breaker of this unit is "Off" and that the tap is tightened.
2. Take the ion exchange resin cartridge out of attachments to the unit.
3. Place the ion exchange resin cartridge taken out on the receiver within the unit. (See Fig.1.)
4. Fix the ion exchange resin cartridge with the band of receiver. (See Fig.2.)
5. Remove the rubber cap attached to the inlet and outlet of ion exchange resin cartridge.
6. Fit in the coupler marked with (IN) to the inlet of ion exchange resin cartridge (left) until click is
heard. (See Fig.3.)
7. Fit in the coupler marked with (OUT) to the outlet of ion exchange resin cartridge (right) until
click is heard. (See Fig.3.)
Coupler may be hard at first. When applying force in inserting, do not make it curved because
insertion port may be broken.
IN
Reset switch
I
N
O
U
T
OUT
8. Coupler can be removed easily from the ion exchange resin cartridge by pulling it toward
yourself while pushing the black part of the coupler to the depth.
Fig.1
Fig.2
Fig.3
Fig.4
Page 13
11
Before Using this unit
Requirements for Installation
21. Secure the pre-treatment cartridge securely
Connect the hose in the body securely following the procedure shown below.
Insecure connection may cause disconnection of connection hose, resulting in accident by
water leakage.
1. Make sure that the earth leakage breaker of this unit is "OFF" and that the tap is tightened.
2. Take the pre-treatment cartridge ① out of attachments to the body.
3. Inlet and outlet of the pre-treatment cartridge ① are provided with a cap, so remove it.
4. When the front door of this unit is opened, connection hose marked IN and OUT is found in
the coupler; there make connection matching them with IN and OUT on pre-treatment
cartridge ①.
5. In connecting, mate the coupler and port of cartridge while sliding the blue portion ③ of
coupler toward the hose, push in, then release the blue portion ③.
6. When connection is finished, place the pre-treatment cartridge at the position shown on the
right (near side on the left of distilled water tank) as paying attention to the bend of hose.
22. After installation
This unit may topple over due to unexpected earthquake or shock causing injury. Take an
appropriate measure against toppling for safety.
②
①
Page 14
12
Description and Function of Each Part
Main Unit
Multi-purpose distilled water intake opening
The multi-purpose distilled water intake opening is located at right side surface of the unit, and
one-touch joint (refer to Page 13) is installed at the opening. Distilled water in the tank can be filled by
removing the plug stopper, and connect the hard tube of φ8mm of outer diameter. Moreover, the
one-touch joint is available as connection port for optional goods.
Notice that distilled water pours when removing the plug stopper because the one-touch joint
does not have the check valve.
Heater terminal block
Drain cock
Ion exchange resin cartridge
(CPC-S)
Boiler
Leakage detection electrode
Distilled water tank
Water level meter
Reset switch
Pre-treatment cartridge
Heater
Earth leakage breaker
Product number sticker
Drain port
(2pcs each at right/left)
Control panel
Water level meter
Multi-purpose distilled water
sampling port
Distilled water
sampling port
Ion exchange water
sampling port
Page 15
13
Description and Function of Each Part
Main Unit
How to use one-touch joint
Use one-touch joint following the procedure shown below.
Notice that distilled water pours when removing the plug stopper or tube because the one-touch joint
does not have the check valve.
● Fitting of tube
1. Make certain that the end of the tube is cut at right angles, the tube surface is free from flaws, and
the tube is not deformed into an ellipse.
2. When fitting a tube, insert the tube completely to prevent leakage.
3. On completion of fitting, make certain that the tube does not come out at your pulling.
● Release of tube
Push the release ring fully inside and pull out the tube. Unless you push it completely in, the tube
may not come out and scrapings of tube may be left inside the joint.
Release ring
Page 16
14
Description and Function of Each Part
Piping System View
1
Pressure reduction valve
15
Boiler water supply solenoid valve
2
Pressure switch
16
Initial accumulated water drain
solenoid valve
3
Cooling water solenoid valve
17
Ion exchange water sampling solenoid valve
4
Raw water supply solenoid valve
18
Distilled water sampling solenoid valve
5
Pre-treatment cartridge
19
Ion exchange water sampling port
6
Ion exchange resin cartridge (CPC-S)
20
Distilled water sampling port
7
Float cylinder
21
Distilled water tank
8
Float switch 1
22
Float switch 3
9
Float switch 2
23
Air filter
10
Boiler drain cock
24
Distilled water sampling pump
11
Boiler
25
Distilled water tank drain port
12
Heater
26
Water level meter
13
Condenser
27
Multi-purpose distilled water sampling port
14
Ion exchange water quality gauge electrode
Page 17
15
Description and Function of Each Part
Principle of Operation
1. Boiler Water Supply and Distilling Operation
Turn ON the earth leakage breaker, and press the power switch. Then, the raw water supply solenoid valve
(4) and the boiler water supply solenoid valve (15) open at the same time to supply water to the boiler (11).
When the float switch 1 (8) in the float cylinder (7) detects water level, the heater (12) is energized to start
distillation. The water supply to the boiler is controlled by the raw water supply solenoid valve (4) and the
boiler water supply solenoid valve (15) both opened/closed by the float switch 2 (9).
2. Flow of Cooling Water
During distillation, water is supplied and discharged in the order: (1) pressure-reducing valve, (3) cooling
water solenoid valve and condenser (13). When the distilled water tank is full, or when ion exchanged water
is sampled, distillation is stopped, and the cooling water is also stopped automatically.
Page 18
16
Description and Function of Each Part
Principle of Operation
3. Sampling of Distilled Water
The distilled water condensed in the condenser (13) is stored in the distilled water tank (21) after discharging
the initial boiled water via the initial boiled water discharge solenoid valve (16) for about 10 min. after power
switch is turned ON. If the float switch (22) on top of the tank trips, it is deemed as Full Tank, and the
distillation is stopped. When any specified amount of distilled water is sampled and consumed, distilled
water is produced automatically.
The distilled water so stored is sampled by way of the distilled water sampling solenoid valve (18) and the
distilled water sampling port (20) by the distilled water sampling pump (24).
4. Sampling Ion Exchanged Water
Ion exchange water is sampled by way of the pressure-reducing valve (1), raw water supply solenoid valve
(4), pre-treatment cartridge (5), ion exchange resin cartridge (6), ion exchange water quality electrode (14),
ion exchange water sampling solenoid valve (17) and ion exchange water sampling port (19).
Page 19
17
Description and Function of Each Part
Control Panel
ON
LEAK
LOW PRESSURE
OVERHEAT
CONDUCTIVITY
WARNING
PRE-FILTER
ION EXCHANGE RESIN
0 5 10
×10-4S/m
∞1
POWER
0.5
DISTILL
DISTILLED
WATER
PURE
WATER
①
POWER key
Turns on/off the power of the controller.
②
DISTILL lamp
Lights up during distillation.
③
CONDUCTIVITY indicator
Lights up when the conductivity of pure water keeps between 0.0 to ∞μS/㎝.
④
LOW PRESSURE lamp
Blinks when low pressure error is detected.
⑤
OVERHEAT lamp
Blinks when overheat of the heater is detected.
⑥
DISTILLED WATER key
Starts/stops drawing distilled water.
⑦
PURE WATER key
Starts/stops drawing pure water.
⑧
LEAK lamp
Blinks when water leakage is detected.
⑨
ION EXCHANGE RESIN
exchange indication
Lights up when the conductivity of the ion exchange resin enters the caution
area (orange), and blinks when it enters the warning area (red).
⑩
PRE-FILTER
exchange indication
Lights up when the conductivity of the pretreatment filter enters the caution
area (orange), and blinks when it enters the warning area (red).
⑪
ON lamp
Lights up while the power of the controller is turned on.
①
②
③
④
⑤
⑥
⑦
⑧ ⑨ ⑩
⑪
Page 20
18
Operation Method
Setup and Check before Use
WARNING!
1. Check of water supply
Check that the water supply hose is securely connected.
Open the tap.
Check that water does not leak from connection of water supply hose.
2. Check of drain
Check that the drain hose is securely connected.
Check that the drain hose is free from bend or projection.
When the drain hose is bent or the like, system does not operate normally, and in addition, it may
lead to water leakage accident. Inspect from time to time, and ensure that water is drained
properly.
3. Check of power supply
Check that the power cord is connected to appropriate plug socket.
4. Before operation
Turn on the earth leakage breaker, then, perform calibration before pressing POWER key.
Perform calibration operation at first-time using this unit (refer to page 19) and when changing the
heater of the boiler (refer to page 28).
Press POWER key while holding PURE WATER key and DISTILLED WATER key. Perform
calibration operation (all of ON, DISTILL, PURE WATER, and DISTILLED WATER lamps blink at
the same time) for about five minutes, after then, distillation (ON and DISTILL lamps light up)
starts automatically. Key operation becomes disable while calibration operation. In case that
power failure occurs while calibration operation, please perform calibration again.
5. Caution at initial operation
In sampling distilled water in initial energization and drain from distilled water storage tank, air is
contained in the pump and piping, and it takes time until sampling is started.
In sampling ion exchanged water immediately after changing pre-treatment cartridge or ion
exchange resin cartridge, it also takes time until sampling is started. Further, when each
cartridge is changed, drain about 5 liters in order to remove initial impurities.
Page 21
19
Operation Method
Operation Procedure
When operation is set up, follow the procedure below for operation:
1. Turning on power
ON
LEAK
LOW PRESSURE
OVERHEAT
CONDUCTIVITY
WARNING
PRE-FILTER
ION EXCHANGE RESIN
0 5 10
×10-4S/m
∞1
POWER
0.5
DISTILL
DISTILLED
WATER
PURE
WATER
When first-time using the unit, perform calibration
operation.
1. Turn on the earth leakage breaker.
2. Press POWER key while holding PURE WATER
key and DISTILLED WATER key.
3. After five minutes passed, distillation starts
automatically.
ON lamp lights up.
CONDUCTIVITY lamp which indicates the
conductivity of pure water lights up.
From the second time using:
① Turn on the earth leakage breaker.
② Press POWER key.
2. Distillation starts after supplying water to the boiler
ON
LEAK
LOW PRESSURE
OVERHEAT
CONDUCTIVITY
WARNING
PRE-FILTER
ION EXCHANGE RESIN
0 5 10
×10-4S/m
∞1
POWER
0.5
DISTILL
DISTILLED
WATER
PURE
WATER
DISTILL lamp lights up.
3. Distillation stops when the distilled water storage tank is full
DISTILL lamp goes OFF.
Page 22
20
Operation Method
Sampling of Pure Water
Sampling of Ion Exchange Water
ON
LEAK
LOW PRESSURE
OVERHEAT
CONDUCTIVITY
WARNING
PRE-FILTER
ION EXCHANGE RESIN
0 5 10
×10-4S/m
∞1
POWER
0.5
DISTILL
DISTILLED
WATER
PURE
WATER
When pressing PURE WATER key:
DISTILL lamp goes OFF.
The pure water filling indication lamp lights
up.
Pure water can be sampled by way of the pure
water sampling port.
Pressing PURE WATER key again turns off the
pure water filling indication lamp, and stops
filling pure water.
Sampling of Distilled Water
ON
LEAK
LOW PRESSURE
OVERHEAT
CONDUCTIVITY
WARNING
PRE-FILTER
ION EXCHANGE RESIN
0 5 10
×10-4S/m
∞1
POWER
0.5
DISTILL
DISTILLED
WATER
PURE
WATER
When pressing DISTILLED WATER key:
Distilled water filling indication lamp lights
up.
Distilled water can be sampled by way of the
distilled water sampling port.
Check if 5 liters or more is stored in the tank by
using water level gauge.
If 5 liters or less is stored, water cannot be
sampled.
Pressing DISTILLED WATER key again turns
off the distilled water filling indication lamp, and
stops filling distilled water.
※Be advised, however, that an irregular noise
may emit from the pump when extracting
water with the membrane filter installed. This
is normal and should subside.
(if the noise persists, temporarily remove the
membrane filter from the distilled water
extraction point and continue extracting water
to remove air trapped in the water lines.)
Page 23
21
Operation Method
Display of Water Quality
Measurement of Electric Conductivity
The lamp of the water quality meter on the control panel indicates the electric conductivity at the
outlet of the ion exchange resin cartridge. Use this indication as the reference for the timing of
replacing the ion exchange resin cartridges. Be sure to read the indication when the electrodes dip
in water; namely while the ion exchange water passes. In the following cases, the electrodes do not
dip in water and air bubbles affect the operation, thus causing incorrect readings.
1. In the initial stage of operation, and when the system is stopped
2. Immediately after replacing the pre-treatment cartridge or ion exchange resin cartridge
Electric conductivity
Electric conductivity is a value indicating easiness of flowing of electricity. In the case of water,
electricity flows the more easily when the more electrolyte i.e. impurity is solved, so the value of
conductivity is the greater; when the less electrolyte is solved, the smaller is the value.
When the value of electric conductivity is the smaller, the better is purity of pure water.
Here, electric conductivity indicates only electrolyte, and does not indicate content of
non-electrolyte (such as organic substance, colloid substance, dissolved gas, and microorganism),
and it is just an index indicating purity of pure water, and it does not represent all of purity.
Specific resistivity indicates the same contents as electric conductivity. Specific resistivity is
inversely related to electric conductivity, and when the value is the greater, the better is purity.
When obtaining specific resistivity from electric conductivity, where specific resistivity is R and
electric conductivityρ,
R［Ω･m］
1
S m］
[ /
or
R［×10 Ω･m］
1
×10 S m］
４
－４
[ /
So the theoretical value of pure water is as follows:
R=18.3×104Ω･m (18.3MΩ･cm) 25℃
ρ=0.055×10-4S/m (0.055μS/cm) 25℃
Quality of ion exchange water and distilled water
Ion exchange water and distilled water have the following features respectively. Distinguish them
as necessary in use.
It is ideal to use pure water immediately after sampling; therefore be sure to drain water in distilled
water tank if it is out of use for a long time. If water has been stored in distilled water tank for a long
time, drain once, then store in distilled water tank newly before use.
1. Ion exchange water
Most of electrolyte in water is removed, and water with the lowest electric conductivity is obtained.
However, non-electrolyte cannot be removed. In addition, slight fall of purity is found while resin is
new and when water is fed again after halt of system.
If the conductivity of ion exchange resin exceeds 1 x 10-4 s/m, the caution lamp (orange) of
exchange indication lights up. Then, when it exceeds 10 x 10-4 s/m, the warning lamp (red) blinks.
In that case, exchange the ion exchange resin. After exchange and the conductivity of the ion
exchange resin recovered, the warning lamp (red) turns off and auto-recovery starts.
2. Distilled water
Electrolyte and non-electrolyte can be removed in average except for low boiling point substance
such as ammonia. However, carbon dioxide gas in the atmosphere is absorbed and carbon oxide
is generated in the process of manufacturing (condensing/storing), and so the electric conductivity
is worse than ion exchange water, that is 1 to 2.5 X 10-4 S/m (1 to 2.5 μS/cm) at 25C, and
represents weak acid (pH5 to 6).
See "2 - Common item (11) Water" of JIS K0102 (Plant drain test procedure) for removal of
dissolved gas (oxygen and carbon dioxide) in pure water.
Page 24
22
Handling Precautions
WARNING!
If a problem occurs
If smoke or strange odor should come out of this unit for some reason, turn off the power key
right away, and then turn off the circuit breaker and the main power. Immediately contact a
service technician for inspection. If this procedure is not followed, fire or electrical shock may
result. Never perform repair work yourself, since it is dangerous and not recommended.
During a thunder storm
During a thunderstorm, turn off the power key immediately, then turn off the circuit breaker and
the main power. If this procedure is not followed, fire or electrical shock may be caused.
Take enough care in handling detergent (liquid)
In storing detergent (liquid), store in enclosable container avoiding high temperature and
humidity.
Principal component of detergent (liquid) Orgazor 10 is sulfamic acid (acidic with pH of water
solution approx. 1).
In handling this detergent (liquid), use protective tools (gloves, mask, and glasses).
When it is in contact with human body, wash it away with clean water.
Neutralize the liquid with neutralizer (such as sodium hydroxide) after washing.
Ensure neutralization with pH test paper, etc.
Do not use empty container for beverage.
Do not allow detergent to directly flow into agricultural irrigation canal or fields because it
causes withering of rice crop.
Do not step on this unit
Do not step on this unit. It will cause injury if this unit fall down or break.
Do not put anything on this unit
Do not put anything on this unit. It will cause injury if fall.
In power failure
When system has halted during operation due to power failure etc. and is provided with power
again, system is brought to standby status. When restarting operation, start from (Page 19 "1.
Turning on power").
Page 25
23
Maintenance Method
Daily Inspection and Maintenance
Timing of maintenance and inspection
(Perform daily inspection for stable use of product.)
Maintenance/check items
Reference for timing
Remarks
Replacement of
pre-treatment cartridge
Approx. 6 months
Indicates on exchange
indication lamp.
Throughput: About 5000 liters of city water
in Tokyo
If the quality of raw water is not good,
perform this maintenance as soon as
possible.
Replacement of ion exchange
Resin cartridge
When red lamp lights up on
exchange indication lamp
Throughput: About 700 liters of the raw
water of 200 x 10-4S/m
Cleaning of distiller
3 months
If the quality of raw water is not good, start
the operation as soon as possible.
Cleaning of water supply
hose filer
6 months
Replacement of hose
2 years
Connections shall be checked monthly.
Drainage of distilled water tank
3 months
If not used for a long time, drain water from
the tank.
Drainage of boiler
Once-daily
If not used for a long time, drain water from
the tank.
Replacement of
Membrane filter (Option)
Approx. 6 months
Throughput: Normal filtering capacity is
about 5000 liters, but may vary depending
on base water quality. Replace filter sooner,
if base water quality is low.
Replacement of Pre-treatment Cartridge
See Page 11 "21. Secure the pre-treatment cartridge securely" for replacement procedure.
When the cartridge is put to use without replacement, life span of ion exchange resin cartridge
becomes short.
Please dispose used cartridge as nonconbustibles. When it is sent back to our company, fill in the
designated invoice attached to a new cartridge, and send it with the used cartridge to us.
In the case of consecutive operation, the caution lamp (orange) of the pretreatment filter lights up
after about five months passed after starting to use, and the warning lamp (red) blinks after six
months passed. For its recovery, after exchange, press and hold the reset switch on backside of
the door for two seconds, then, a beep sounds and the warning lamp (red) turns off.
Replacement of Ion Exchange Resin Cartridge
When a cartridge is stored for a long time, deterioration of water quality and fall of processing
capacity are found; therefore prepare a spare cartridge in a planned manner for replacement
timing. Standard for storage is about 4 months.
In replacement, see Page 10 "20. Install the ion exchange resin cartridge (CPC-S) securely".
When a cartridge is used without replacement, much scale is deposited on boiler and heater,
which causes decrease of distilled water sampling and damage to heater.
Please dispose used cartridge as nonconbustibles. When it is sent back to our company, fill in the
designated invoice attached to a new cartridge, and send it with the used cartridge to us.
We promote the reasonable disposal, collection, and recycling of cartridge for environmental
protection.
Page 26
24
Maintenance Method
Washing of Distiller
Dismounting of Distiller
1. Turn "OFF" the earth leakage breaker of the unit.
2. Close the tap.
3. Check that the boiler is not hot (longer than 30 minutes after the breaker is turned "OFF"), then open
the front door of the unit, and open the boiler water drain cock.
4. Disconnect the hose connected to the boiler ① and condenser ②. In disconnecting from the
distilled water outlet and boiler water supply and drain port, turn the hose band by use of tool and
displace the engaged portion (serrated portion). Take care in disconnecting because excessive
force applied to glass may cause damage.
Cooling Water
Outlet
Cooling Water
Inlet
Boiler Water Supply and
Drain Port
Distilled
Water
Outlet
5. Disconnect the hole plug at left plate, remove four screws with a screw driver, then remove the left
plate.
6. Loosen 4 screws on the right of terminal block located at the right top of the body frame with left side
plate dismounted by use of Phillips screwdriver, and disconnect the heater lead terminal.
②
①
Page 27
25
Maintenance Method
Washing of Distiller
7.
1) Disconnect the heater lead wire from grommet.
Note that, do not bend or pull the heater lead wire more than necessary.
2) Remove the two screws of boiler securing band with a Phillips screwdriver, and take the boiler
and condenser out of the body.
Grommet
3) Loosen the knurled screws (three) and remove the boiler and condenser.
Grommet
Connecting
Hardware
Packing
Connection Port
with Condenser
Boiler
Condense
Washing of boiler
1. Adjust detergent liquid.
1) Prepare approx. 2 liters of hot water at 50 to 60C.
2) Add attached scale detergent (Orgazor) approx. 200g to hot water prepared in 1) and agitate well.
2. Seal the hose connection port at the bottom of boiler (boiler supply and drain port) by use of rubber
stopper, etc.
3. Secure the boiler at a stable position to prevent washing liquid from spilling.
4. Pour in washing liquid through connection port with condenser with heater turned on.
Most scale is removed in 4 to 5 hours approximately. Drain washing liquid in the boiler. If much scale
is distiller deposited, pour in washing liquid newly, and repeat washing
1) When scale-removing work is finished, take the heater out of boiler and wash each of them
enough with city water. Here, in washing the heater with water, be sure to fill a larger beaker with
water and wash the heater inside so that lead wire and its routing port are not wet by water.
Avoid washing the heater directly with water from tap.
2) If solid scale distiller remains after washing by washing liquid, follow the remedy below:
Boiler: Scrub with brush etc. for removing.
Heater: Scrub with something soft such as wood piece or plastic.
In this connection, remove scale on the heater uniformly in general, never leaving solid scale in part. In
an extreme case, only such part has a great heat resistance, causing damage to the heater.
Knurled Screw
Page 28
26
Maintenance Method
Washing of Distiller
Washing of Condenser
1. Pour detergent liquid into the cooling pipe of condenser.
(See Page 25 "Washing of boiler" for formulating detergent liquid.)
Detergent
Liquid
Hose
Connection
Port
2. If detergent liquid should flow out of hose connection port, seal with rubber stopper. Most fur can
be removed in 4 - 5 hours approximately.
3. Drain detergent liquid, and then wash enough with city water.
Handling of Detergent Liquid (also refer to Page 22 "Handling Precautions")
1. Wash the boiler and heater sooner. If the more scale is deposited, the more difficult is its removal,
which may cause decrease of distilled water sampling and damage to heater.
2. When washing is finished, drain detergent liquid out of the unit, and apply neutralization by
neutralizer (such as sodium hydroxide). In neutralization, check that it is neutral by use of pH test
paper, etc. (Principal component of scale detergent: Sulfamic acid and pH of water solution: Acidic
approximately 1)
3. In storing this detergent, seal the agent and store in cold and dark place avoiding high temperature
and humidity.
4. In handling this detergent, be sure to use protective tools (gloves, mask, and glasses).
5. When it is in contact with human body, wash it away with clean water.
6. Do not use empty container for beverage.
7. Do not allow detergent to directly flow into agricultural irrigation canal or fields because it causes
withering of rice crop.
Installation of boiler
1. Secure the boiler with the boiler securing band so that connection port of condenser is horizontal.
Check that the packing is contained in the cap nut, and then install the heater into the boiler with
letters "YK-W-3" faced up.
Packing
YK-W-3
Cap Nut
Heater
Boiler Securing
Band
Connection Port with
Condenser
Page 29
27
Maintenance Method
Washing of Distiller
2. Attach 4 heater lead terminals to the terminal block.
Heater Lead
(wire diameter, thick)
Heater Lead
(wire diameter, thin)
3. Install the left side plate on the body.
4. Insert the hose to the boiler water supply and drain port, and secure with the hose band.
Installation of condenser
1. Place packing in the connection port of boiler with condenser, and secure with connecting hardware
so that the boiler and condenser are placed in the same direction.
Inlet
Outlet
Boiler
Condense
Connecting
Hardware
2. Connect the hose respectively to the cooling water inlet, outlet, and distilled water outlet of
condenser.
3. Close the boiler water drain cock.
View from above
Boiler Water
Drain Cock
Open
Close
Page 30
28
Maintenance Method
Replacement of Heater
If the heater should be disconnected or damaged due to deposit of scale, replace it by the
procedure below. (Also refer to Page 24 "Washing of Distiller" in working.)
1. Turn "OFF" the earth leakage breaker of this unit.
2. Close the tap.
3. Turn "OFF" earth leakage breaker, and when more than 30 minutes has passed, open the front door
of this unit, and open the boiler water drain cock.
4. Open the left side plate of the body, loosen the four screws on the right of the terminal block, and
disconnect the heater lead terminal.
5. Pull the heater lead out of the grommet.
6. Remove the cap nut of heater, and pull out the heater.
7. Remove the packing and cap nut from the damaged heater.
8. Install the packing and cap nut on the new heater. At that time, do not touch with bare hand in order
to prevent soiling by hand.
Packing
9. Install on the boiler so that "YK-W-3" mark of the heater is faced up.
10. Feed the heater lead wire through the grommet, check the heater lead wire attaching position, and
secure to the terminal block.
11. Mount the left side plate.
12. Close the boiler water drain cock.
13. Close the front door, and then open the tap.
14. Turn on the earth leakage breaker.
15. Press POWER key while holding down PURE WATER key and DISTILLED WATER key.
Perform calibration operation (all of ON, DISTILL, PURE WATER, and DISTILLED WATER lamps
blink at the same time) for about five minutes, after then, distillation (ON and DISTILL lamps light up)
starts automatically. Key operation becomes disable while calibration operation. In case that power
failure occurs while calibration operation, please perform calibration again.
Page 31
29
Maintenance Method
Washing of Water Supply Hose Filter
1. After turning off the earth leakage breaker
on this unit, turn the tap off, slide the
sleeve to the direction of the arrow, then,
remove the water supply hose from the
connection port.
2. Remove the plug ② from ring ① as
turning.
3. Cleanse filter ⑦ attached to the packing
with water.
4. Wash the filter with spray, etc.
5. Assemble by reversing the procedure.
Replacement of Hose
Be sure to use a hose specified by Yamato Scientific for replacement.
Connection Port Body
①Ring
②Plug
③Socket
④Spacer
⑤Mounting Screw
⑥Packing
⑦Filter
One-touch
Joint
④ ⑤ ⑥
⑦ ① ②
③
Tap
Sleeve
Tap side
Water
Supply
Hose
Page 32
30
Long storage and disposal
When not using this unit for long term / When disposing
If this unit is to be put out of service for a long time, be sure to turn of the earth leakage
breaker of this unit for safety, and close the tap. Water in the boiler and distilled water tank, if
stored as it is, will deteriorate in quality due to generated bacteria or algae. Drain water by
the procedure below:
Boiler Water Drain
1. In draining boiler water, turn off the earth
leakage breaker, ensure that the tap is
closed, then wait for 30 minutes or more,
and open the front door.
2. Open the boiler water drain cock.
3. Make sure that all water in the boiler and
float cylinder is drained.
4. Be sure to close the boiler water drain
cock. If boiler water drain cock is opened
in next use, water is not fed into the boiler,
and distillation is not started.
Boiler Water
Open
Close
Page 33
31
Long storage and disposal
When not using this unit for long term / When disposing
WARNING!
When disposing…
Keep out of reach of children.
Treat as large trash.
When the unit is out of service at night and on holidays
Turn off the earth leakage breaker.
Be sure to close the tap.
Fluctuation of city water pressure may cause unexpected accident such as water leakage.
In use in winter at a severely cold place, beware of freezing in the tank, boiler, condenser, etc.
while system is stopped.
Environmental protection should be considered
We request you to disassemble this unit as possible and recycle the reusable parts considering to the
environmental protection. The feature components of this unit and materials used are listed below.
Component Name
Material
Main Components of Exterior
Exterior
Made of iron, bonded steel plate, melamine resin baking finish
Exterior rear plate
Made of iron, bonded steel plate, melamine resin baking finish
Door
Made of iron, bonded steel plate, melamine resin baking finish
Door rear plate
Stainless steel plate SUS 304
Mounting plate (painted)
Made of iron, bonded steel plate, melamine resin baking finish
Mounting plate (unpainted)
Stainless steel plate SUS 304
Electric parts mounting plate
Aluminum
Hinge
Stainless steel plate SUS
Rubber foot
Synthetic rubber
Mounting tabs
Stainless steel plate SUS 304
Production plates
Polyester
Main Components of Water Circuit System
Boiler
Hard glass
Condenser
Hard glass
Float cylinder
Polypropylene
Pure water tank
Polyethylene
Drain port
Polypropylene
Water supply port
Brass
Float cylinder branch pipe
Polypropylene
Electrode holder
Polypropylene
Water sampling port
Polypropylene
Control panel
ABS resin
Resin cylinder case
Polypropylene
Page 34
32
Long storage and disposal
When not using this unit for long term / When disposing
Component Name
Material
Main Components of Water Circuit System
Ion exchange resin
Polystyrene Resin
Water quality gauge electrode
Titanium
Heater
Ceramic
Heater mounting nut
Teflon
Main Components of Piping System
Water supply hose
Vinyl chloride
Drain hose
Ethylene propyne
Hose (transparent)
Vinyl
Hose (milky transparent)
Silicon
Hose clamp
Polyacetal
Hose nipple (resin black)
Polyamide
Hose nipple (resin white)
Polypropylene
Hose nipple (metal)
Brass
Main Components of Electric System
Pump
Casing: Polypropylene
Impeller: Polypropylene
Magnet: Ferrite magnet
Motor case: Iron
Rotor: Iron
Solenoid Valve
Made of metal: Body, brass
Made of resin: Body, polyacetal
Float Switch
Polypropylene
Power Cord, Wiring Material, etc.
Wiring material and board coated by synthetic rubber and resin
Page 35
33
In the Event of Failure…
Failure indication and Its Contents
When the following error signs appear, memorize the sign and turn the tap off immediately. If an error
occurs, part change or unit check becomes required. Please call the shop from which you made a
purchase or our customer support center. In that case, please notify them of the error sign.
Safety device
Indication
Cause
Symptom
Countermeasure
LEAK
LOW
PRESS
URE
OVER
HEAT
Burnout of heater
Lights
up
Lights
up
Blinks
When temperature of the
heater did not rise after
certain time passed during
distillation
All controls
of the heater
and solenoid
valve are
turned OFF.
Change the heater.
Water level error
of boiler
Turns
off
Lights
up
Turns
off
When the heater
operation water level input
kept OFF even if the time
for required to evaluate
the boiler water level error
passed after starting water
supply to the boiler
Check whether
manual drain cock is
opened or not. Also
check the feedwater
solenoid valve and
the feedwater path.
Coolant error
Turns
off
Turns
off
Lights
up
When the state of the
boiler water overflow input
ON in the float pipe
continued longer than
coolant error judgment
time
Check the coolant
solenoid valve and
the coolant path.
Water level
meter error
Lights
up
Blinks
Lights
up
When the condition of the
float contacting points in
the float pipe becomes
abnormal.
Change the float
switch.
Tank water level
meter error
Blinks
Lights
up
Lights
up
When the condition of
the float contacting points
in the tank water level
meter becomes abnormal
Turn the breaker on
again. If the trouble
persists, please call
our customer service
center.
Pure water
conductivity
meter error
Lights
up
Lights
up
Lights
up
When the state of
breakage or shortage of
the thermistor sensor for
pure water conductivity
meter continues longer
than error judgment time
Change the pure
water conductivity
sensor.
Overheat of
heater
Turns
off
Turns
off
Blinks
When the temperature at
the heater excesses the
error judgment value, or
when breakage or
shortage occurs on the
temperature sensor
Change the heater.
Water leakage
error
Blinks
Turns
off
Turns
off
When the resistance
value of the water leakage
sensor input becomes
less than the water
leakage error judgment
value
Turn the breaker off
and check the piping
parts. For details,
refer to page 35.
Page 36
34
In the Event of Failure…
Failure indication and Its Contents
Safety device
Indication
Cause
Symptom
Countermeasure
LEAK
LOW
PRESS
URE
OVER
HEAT
Low pressure
error
Turns
off
Blinks
Turns
off
When raw water pressure
is low, or the pressure of
raw water is less than
0.5kgf/cm2
All controls
of the heater
and solenoid
valve are
turned OFF.
Check the water
pressure of raw
water and the tap.
When the raw water
pressure is
recovered, operation
starts automatically
(auto-recovery)
Controller error
Blinks
Blinks
Blinks
When the setting value
which is memorized in the
memory chip cannot be
read properly, or when an
abnormal value was
displayed
When an error at A/D
circuit is detected
Turn the breaker
OFF.
Page 37
35
In the Event of Failure…
Remedy for Trouble
Remedy when water leakage detection ("LEAK" lights up)
1. Turn "OFF" the earth leakage breaker on the right side of body.
2. When restarting after the faulty portion is repaired, wipe off water accumulated at the bottom of
system, dry up, remove the water leakage detection electrode, and dry up enough.
3. Be sure to reset the electrode to the original condition.
4. Close the door.
5. Turn on the earth leakage breaker and press the POWER key. Normal operation is started
because faulty portion is repaired.
Remedy when water stopping detection ("LOW PRESSURE" lights up)
1. Check the pressure of the raw water and if the tap is open (if water level reaches the device).
2. If the pressure of the raw water resumes, the system is reset automatically.
Remedy when overheat detection ("OVERHEAT" lights up)
1. Check if the cooling water flows.
2. If the cooling water flows, the heater may be overheated or disconnected.
3. In such a case, contact the distributor or the customer support center.
Water leakage detection electrode
Page 38
36
In the Event of Failure…
Trouble Shooting
Condition
Check the following.
Water is not supplied.
Defect of raw water supply solenoid valve.
Insufficient city water pressure or water failure.
Defect of pressure switch.
Clogging of pre-treatment cartridge.
Water supply does not stop.
Defect of float switch.
Defect of raw water supply solenoid valve.
No water is supplied to boiler.
Defect of boiler water supply solenoid valve.
Defect of float switch.
Clogging of pre-treatment cartridge.
Opened boiler water drain cock.
Heater does not turn on.
Defect of float switch.
Break in heater.
Cooling water does not flow.
Defect of cooling water solenoid valve.
The initial accumulated water is
not drained.
Initial boiled water is not drained.
Distilled water is not accumulated.
Defect of initial boiled water drain solenoid valve.
Defect of piping.
Distilled water is not stored.
Defect of float switch.
Water is not sampled.
Defect of Ion exchanged water/Distilled water sampling
solenoid valve.
Defect of distilled water sampling pipe.
Defect of piping.
Page 39
37
After Service and Warranty
In Case of Request for Repair
If the failure occurs, stop the operation, turn OFF the power switch, and unplug the power plug.
Please contact the sales agency that this unit was purchased, or the Yamato Scientific's sales office.
< Check following items before contact >
◆ Model Name of Product
◆ Production Number
◆ Purchase Date
◆ About Trouble (in detail as possible)
Minimum Retention Period of Performance Parts for Repair
The minimum retention period of performance parts for repair of this unit is 7 years after
discontinuance of this unit.
The "performance part for repair" is the part that is required to maintain this unit.
See the production plate attached to this unit.
Page 40
38
Specification
Model
WG203
Performance
Collecting method
Ion exchange ⇒ Distillation
Sampled pure water
Distilled water/Ion exchange water
Quantity of distilled water
Approx. 1.8L/h
Sampling flow rate
1L/min. or more (ion exchanged water/distilled water)
Configuration
Distiller
Boiler
Super hard glass
Condenser
Super hard glass
Heater
Ceramic heater 1.4kw
Distilled water storage tank
Made of polyethylene, 20L
Raw water side filter
Pre-treatment cartridge (PWF-1), Activated carbon + Hollow yarn film 0.1
μm
Ion exchange resin cartridge
One-touch connection cartridge type (CPC-S), 2L×2
Water quality gauge
5 stages lamp display
0 to ∞ ×10-4 S/m•25℃(Display of electric conductivity)
Water sending pump
Magnet pump
Multi-purpose distilled water
sampling port
One port on the right side of the unit
Standard
Raw water pressure range
0.5×100 kPa to 5×100 kPa (0.5 to 5 kgf/cm2)
Ambient temp.
5℃～35℃
Power supply (50/60 Hz)
115V AC 13A
External dimension (*)
(Width X Depth X Height)
600×560×780 mm
Weight
Approx.48 kg
Attached mechanism
Water quality failure alert
Detection of cooling water failure
Prevention of baking heater with no load
Detection of heater disconnection
Prevention of heater overheat
Detection of water leakage
Detection of water outage
Earth leakage breaker
Initial boiled water drain
Detection of water level gauge failure (boiler and tank)
Recovery after power failure
Detection of water quality gauge failure
Accessories
Water supply hose, drain hose, and connection assembly:
1 respectively
Operation manual: This manual
Hose clamp: 1
Scale washing agent (1kg): 1
Pre-treatment cartridge: 1
Ion exchange resin cartridge: 1
* : The projection is not included for external dimensions.
Page 41
39
Wiring Diagram
Symbol
Part name
Symbol
Part name
ELB
Earth leakage breaker
X
Main relay
T1, T2
Terminal block
MV1
Raw water solenoid valve
H
Heater
MV2
Boiler water supply solenoid valve
OH
Temperature sensor
MV3
Cooling water solenoid valve
E
Ion exchange water quality gauge
MV4
Initial accumulated water drain solenoid
valve
WL
Water leakage detector
MV5
Distilled water sampling solenoid valve
FS1
Control float switch
MV6
Ion exchange water sampling solenoid
valve
FS2
Control float switch
P
Distilled water sampling pump
FS3
Water level float switch
SSR
Solid state relay
PS
Pressure switch
PIO
Display board
SW
Reset switch
CONT
PLANAR board
Page 42
40
Reference
List of Dangerous Substances
Never use explosive substances, flammable substances and substances that include explosive
or flammable ingredients in this unit.
EXPLOSIVE
EXPLOSIVE:
Ethylene glycol dinitrate (nitro glycol), Glycerin trinitrate (nitroglycerine), Cellulose
nitrate (nitrocellulose), and other explosive nitrate esters
Trinitrobenzene, Trinitrotoluene, Trinitrophenol (picric acid), and other explosive
nitro compounds
Acetyl hidroperoxide (peracetic acid), Methyl ethyl ketone peroxide, Benzyl
peroxide, and other organic peroxides
FLAMMABLE
IGNITING:
Lithium (metal), Potassium (metal), Sodium (metal), Yellow phosphorus,
Phosphorus sulfide, Red phosphorus, Celluloid compounds, Calcium carbide,
Lime phosphate, Magnesium (powder), Aluminum (powder), Powder of metals
other than magnesium and aluminum, Sodium hydrosulfite
OXIDIZING:
Potassium chlorate, Sodium chlorate, Ammonium chlorate, and other chlorate
Potassium perchlorate, Sodium perchlorate, Ammonium perchlorate, and other
perchlorate
Potassium peroxide, Sodium peroxide, Barium peroxide, and other inorganic
peroxide
Potassium nitrate, Sodium nitrate, Ammonium nitrate, and other nitrate
Sodium chlorite and other chlorites
Calcium hypochlorite and other hypochlorites
INFLAMMABLE
LIQUID:
Ethyl ether, Gasoline, Acetaldehyde, Propylene chloride, Carbon disulfide, and
other flammable substances having a flash point of lower than -30℃
Normal hexane, ethylene oxide, acetone, benzene, methyl ethyl ketone, and
other flammable substances having a flash point of -30℃ or higher but lower
than 0℃
Methanol, Ethanol, Xylene, Pentyl acetate (amyl acetate), and other flammable
substances having a flash point of 0℃ or higher but lower than 30℃
Kerosene, Light oil (gas oil), Oil of turpentine, Isopentyl alcohol (isoamyl alcohol),
Acetic acid, and other flammable substances having a flash point of 30℃ or
higher but lower than 65℃
FLAMMABLE
GAS:
Hydrogen, Acetylene, Ethylene, Methane, Propane, Butane, and other flammable
substances which assume a gaseous state at 15℃ and 1 atm
(Source: Appendix Table 1 of Article 6 of the Industrial Safety and Health Order in Japan)
Page 43
41
Responsibility
Please follow the instructions in this document when using this unit. Yamato Scientific has no
responsibility for the accidents or breakdown of device if it is used with a failure to comply.
Never conduct what this document forbids. Unexpected accidents or breakdown may result in.
Note
◆ The contents of this document may be changed in future without notice.
◆ Any books with missing pages or disorderly binding may be replaced.
Instruction Manual for
Water Purifier, Auto Still
Model WG203
First Edition June 27, 2016
Yamato Scientific America, Inc.
925 Walsh Avenue, Santa Clara,
CA 95050, U.S.A
http://www.yamato-usa.com
Toll Free: 1-800-2-YAMATO(1-800-292-6286)
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