EYELA Cool Ace User manual

Tokyo Rikakikai Co., Ltd.
CA-1116A 220V
R00
Instruction
Manual
This instruction manual is designed to use the product safely with keeping
its best performance.
Please keep this manual in a place easily accessible to every users.
IMPORTANT Be sure to read “Safety precautions” before use.
Low Temperature Circulator
Cool Ace

FORWARD
Thank you very much for your kind patronage of EYELA.
Get to know your EYELA products, but before using, to be sure to read this manual well.
EYELA cannot be held responsible for the malfunctions resulting from the use of EYELA
Products other than as specified in this manual.
WARRANTY
EYELA products are warranted against defects in materials and workmanship for a period
of year following the date of shipments.
EYELA will make repairs or replacements free of charge upon return to the factory,
Transportation paid, of the defective item except following cases.
This warranty does not cover finishes nor dose it cover damage resulting from accident,
misuse, abuse, tampering, servicing performed or attempted by unauthorized service agency.
The consumable parts are not warranted even if they are within the warranty period.
Manufacturer : Tokyo Rikakikai Co., Ltd.
TN Koishikawa Bldg.
1-15-17 Koishikawa, Bunkyo-ku, Tokyo 112-0002 Japan
Pone: 81/3-6757-3378
Fax: [phone]
Web site: www.eyelaworld.com
LIABILITY DISCLAIMER
Liability to Tokyo Rikakikai Co., Ltd. For any defect in this instrument is limited to the
Invoiced price of the defective instrument.
Tokyo Rikakikai Co., Ltd. Has no control over the set up, use, connection to other
Equipment, or data generated by means of EYELA products.
Therefore in no event shall Tokyo Rikakikai Co., Ltd.be liable for any incidental or
Consequential damages , losses, or liability which may result from improper use of its
Products, either in connection with other equipment or in the generation, reporting, or
Application of data and results.
SERVICE
1. Before asking our service agency, check your instrument again with trouble
shooting on this manual.
2. We shall repair the instrument subject to WARRANTY CLAUSE
3. Ask our authorized service agency for repairing.

To ensure the safety, this manual defines the information
on such matters as requiring particular care in the safety
as follows in terms of the importance and risk and attaches
the alert mark and signal word.
It is recommended to follow the instruction to ensure the
safe use of the product.
IMPORTANT SAFETY INFORMATION
1. Warning signal word
Alert mark
Signal word Definition
Wrong handling is assumed to cause the possibility of the death or heavy
injury of the user.
Wrong handling is assumed to cause the risk of injury of the operator or
physical damages.
Warning
Caution
We have undertaken thorough verification concerning the possible occurrence of risk in the course of use
of the product, but prediction of all and every kind of risk is extremely difficult. Namely, cautions contained
in this manual are not necessarily all of possible risks.
However, if the product is operated according to the procedure described in this manual, the safe
operation and work is ensured. Be sure to pay utmost care during handling of the product to prevent
accident or failure of the product.
The unit is not of an explosion-proof construction.
Take extreme care for handling flammable samples or
organic solvents not to spill them.
The unit uses H2 gas and shall be installed and
operated in a draft chamber.
This product will be used with part it is hot because of
its functions and features.
This product includes glass parts which might break
and cause personal injury or other accidents if handled
inappropriately.

※If damaged and illegible, be sure to change the
warning label to the new one.
Send the request for the new label to us.
For particularly important warning instructions, the warning
label is provided to the product main body.
The labelling position is shown below.
When using the product, be sure to pay due attention to
the description of the warning.
2. Warning Display on the Product
CAUTION
Do not touch the
cooling fin with your
bare hands.
It may cut your fingers.
WARNING
Fire hazard
Use extreme caution
When using Inflammable and
Ignitable solvent.

1. For safe operation of the unit
2. Product overview
2 - 1 Applications
2 - 2 Specification
2 - 3 Cooling capability curve
2 - 4 Circulation capability
2 - 5 Names of parts
3. Names and functions of operating portion
3 - 1 Control panel
3 - 2 Safety・alarm features
4. Installation
4 - 1 Installation environment
4 - 2 Installation conditions
4 - 3 Installation
4 - 4 Utility connection
Contents
Check the type and quantity of items before setting up.
Details of items in the package
Introduction
This instruction manual explains installation,
operation, troubleshooting, maintenance and
inspection, and discarding procedures for the
Always read this manual before use to
ensure familiarization of the product.
Caster holder
Bath cover 90°Elbow
Low Temperature Circulator
［Cool Ace］model: A-1116A
Bath cover
Bath cover
box
CAUTION
1
2
2
4
5
6
7
4
9
9
11
10
12
15
26
24
26
30
31
29
19
5. Operation
5 – 1 Preparation
5 – 2 How to operate the unit
5 – 3 Operation in the user setting mode
6. Troubleshooting
7. Maintenance・checkup
7 – 1 Operation test for residual
current device
7 – 2 Cleaning and caring the product
8. Consumption parts/Optional accessories
9. Disposal of the product
10. After-sale Services
21
5 – 4 Optional Accessories
Thank you for purchasing our
product.
Hose joint
Valve for adjusting
flow volume
Item Quantity
1 Main unit 1
2 Bath cover 1
390°Elbow
(Rc 3/8 ) 2
4Hose joint
( R3/8 x Ex.Dia.10.5) 2
5Valve for adjusting Flow volume
( R3/8 x Rc3/8) 1
6 Caster holder 4
7Power cord (applicable in
European countries) 1
8 Instruction manual 1
Attention
Power supply cord , please use the thing which a
designated manufacturer appoints by all means.
Bath cover is
included in a small
Carton in the box.
Carton

For safe operation of the unit
1
This product is not designed with explosion-proof structure.
Use with extreme caution when handling it.
1
CAUTION
WARNING
Use with extreme caution when handling inflammable
or combustible solvent.
If you leave inflammable or combustible solvent (ethanol and etc.) at room
temperature or higher (lower for some solvent),
it may evaporate and catch fire with some fire sources, and cause a fire and
explode. Ventilate the space well before use.
Do not touch cooling fin with bare hands
while performing maintenance work.
Edgy fin may cut your fingers.
Do not use cooling fin with bare hands.
CAUTION Power supply cord, please use the thing which a designated
manufacturer appoints by all means.
CAUTION
Do not move the unit while liquid is in the bath.
Do not move the unit while liquid is in the bath.
This product is not in waterproof structure.
There is fear of electric shock and
an unexpected accident.

2-1 Applications
2-2 Specification
Never attempt to disassemble or modify
the product.
Do not use the product for any purposes
other than those specified.
Modification or use for purposes other than
those specified may lead to an electric shock or
a malfunction.
Warning
2
This is a cooling water circulator, which
cools water by means of the refrigerator
inside the bath and circulates cooling water
by means of the circulation pump to the
outside to cool the evaporator, reactor, the
heating portion of various mechanical units.
The use of optional bath cover enables
circulation to the open system.
Product overview
2
Product name Low temperature circulator (Cool Ace）
Model CA-1116A
Circulation system Circulation for sealed system
Performance
Temperature control
range ※1－20～＋30℃
Accuracy of
temperature
control ※2±2℃
Cooling
capability
※3
Liquid
temp. Room temp.20℃Room temp.35℃
at 10℃1050W 700W
at 0℃800W 430W
at-10℃600W 200W
Circulation
Capability
※4
Max. Lifting
height 9.5 / 13 m（50/60Hz）
Max. flow
volume 12 / 14 L/min（50/60Hz）
Configuration
Temperature control
system Refrigeration unit, ＯＮ-ＯＦＦ control
Temperature setting・
display Sheet key digital setting , LED digital setting（minimum digit:1℃）
Selecting setting or measured temperature
Safety features Residual current device・excess current breaker , Over load relay
holding circuit, Protection timer for refrigeration unit ,
Self diagnosis function for temperature controller ,
Thermal protector for circulation pump
Temperature controller Electronic digital setting・digital display
Temperature sensor Pt sensor ( Pt100Ω)
Refrigeration unit・
refrigerant Output 650W（Rotary）・R407C
Bath Whole capacity Approx.16.5ℓ
Actual capacity:Approx.14ℓMaterial SUS304
Cooling coil Stainless (SUS316L)
Diameter of circulation
nozzle[mm] External diameter O.D.10.5×Bore diameter I.D 7 (R3/8)

3
＝＝Notice ＝＝
When you require to perform continuous operation of 24 hours/day under temp. of less than
0deg℃for more than one week duration.
Please contact us.
We will propose customized version of the chiller for such cases.
Product name Low temperature circulator (Cool Ace）
Model CA-1116A
S
P
E
C
.
Range of ambient
temperature 5～40℃( Indoor use only) ※5
Range of ambient
humidity 20～80% ( Indoor use only )
Dimensions ※6
（main unit）354(W)×384(D)×851(H)（excluding nozzle）
Dimension of the bath 280 (Diameter)×270 (Depth)
Supply voltage AC 220V±10% 50/60Hz
Supply power ※7 4.3A 950 VA
Weight Approx. 43 kg
Operation presser max. 2.45 MPa
Pollution degree 2
Over voltage category Ⅱ
Operation at a
terrestrial altitude Max 2000m above sea level
※1 ・Heater is not equipped.
・Temperature control not available when the ambient temperature is low, unloaded and high
temperature setting.
※2 Condition
・Room temperature 20℃・Water 14ℓ・Circulation flow Max. ・Setting 5～30℃
・Heat load Less than 90% of cooling capability（displayed capability）
・Power source AC 220V 50Hz
・In some cases the accuracy differs depending on room temperature, supply power, type of
refrigerant, the condition of stirring in the bath and etc.
※3 Condition
・Room temperature 20℃・Circulation volume Max. ・Supply power: AC 220V 50Hz
・Cooling capability is ±10％of displayed capability.
・Cooling capability differs depending on room temperature, supply power, voltage,
type of refrigerant, condition of stirring in the bath and etc.
※4 Condition
・Water temperature 20℃・Supply power / voltage AC 220V 50Hz
・Circulation capability is ±10％of displayed capability.
・Circulation capability differs depending on the type of secondary refrigerant.
※5 In order to guarantee the performance of the instrument described in this manual
ambient temperature must be within the range from 5 to 35℃.
※6 External dimension does not include protrusion.
※7 When voltage is dipped during operation, the unit may indicate “ A14 ” may be on the
control panel and then quit operation. However, this is not a fault of the unit.

2-3 Cooling capability curve（Reference）
Liquid temperature（℃）
2-4 Circulation capability（Reference）
Cooling capability（W）
4
＊Circulation capability differs depending on diameter of nozzle, piping, type of solvent and other
conditions.
＊If you conduct sealed operation for circulation pump, it may cause malfunction on the pump.
50Hz
60Hz
Condition ・220V 50 / 60Hz
・Water at 20℃
Lifting height（m）
Flow volume（ℓ/min）
Condition ・220V 50Hz
・Stirring in the bath（Circulation amount: Max.）
Room temp.20℃
Room temp.35℃

2-5 Names of parts
Residual current device
Power cord
Cooling coil
External circulation discharge nozzle
（WATER OUT ）
External circulation charge nozzle
（WATER IN ）
Control panel
Valve for adjusting
flow volume
Caster
（no stopper attached）
Cooling water circulation bath
90゜Elbow
Bath cover
Caster
（with stopper））
Tray on nozzle
Drain hose for tray
Drain plug
for tray
5
Top surface
Back surface
Communication
cable connector for
Rotary Evaporator
Type: N-1200B
Comm. terminal
※1
※1 This can be connected to the vacuum controller, Type NVC-3000
for use.
In Let
(Air)
Out Let (Air)
Mains connector
Front
Back Strainer
Drain
stopcock
Out Let (Air)

3-1 Control panel
①
Run
Stop
Pump
Alarm
Refrigerator
Pump
Set
PV
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
Run/Stop
℃
6
Names and functions of operating portion3
№Name Function
①Power switch Turns on and off the power.
②Alarm LED Lights up when alarm happens.
③Circulation pump LED Lights up when turning on circulation pump switch.
④Refrigeration unit LED Lights up when turning on refrigeration switch.
⑤Control status indicating
LED Lights up when the control is on.
⑥Display Displays temperature or alarms.
⑦Run/Stop Key Starts or stops the control.
⑧ ▲ Key Increases the value of temperature in increments of 1℃by one
press at the temperature setting display. The continuous
pressing of key increases the value continuously.
⑨ ▼ Key Decreases the value of temperature in decrements of 1℃by one
press at the temperature setting display. The continuous
pressing of key decreases the value continuously.
⑩Set Key Changes the display of setting the value and measured value.
At the setting value display, the changed setting value is decided.
At the alarm display, the alarm display is cleared and it changes
to the normal display.
⑪Pump Key Turns on or off the circulation pump.

Safety features
3-2 Safety・alarm features
This product is equipped with the following safety features and alarm features.
If you face any trouble, please refer to “Troubleshooting" on page 24 and follow the instruction.
7
Safety device Operation Reasons why the device works.
Residual current
device Power is turned off. ・Electric leakage hazard occurs, or excess current flows.
High-pressure
switch for
refrigeration unit
Pressure rises abnormally while
the refrigeration unit is operated,
and alarm LED lights up, which
stop running refrigeration unit.
・Ambient temperature exceeds 40℃.
・Heat load was too heavy for cooling capability,
which made the temperature in the bath rise.
・Dirt adheres to air filter.
・Fan for refrigeration unit does not work.
Protection circuit
for refrigeration
unit’s over load
Refrigeration unit operates with
over loaded (over heated),
which made Alarm LED light up
and stop refrigeration unit.
・Refrigeration unit started up with over loaded.
・Power and voltage variation exceeds the
rated value（±10％）.
・Ambient temperature exceeds 40℃.
・Heat load was too heavy for cooling capability,
which made the temperature in the bath rise.
・Dirt adheres to air filter.
・Fan for refrigeration unit does not work.
Thermal protector
for circulation
pump
Circulation pump performs over
heat operation and stops
operation.
（Recovers when the pump is
cooled down.）
Over heat operation of circulation pump
・Circulation liquid has high viscosity.
・Foreign substance is sucked in.
・Ambient temperature exceeds 40℃.
・Piping resistance is high.（Valve is closed and etc.）
Self-diagnosis
function for
temperature
controller
Temperature controller gets in
Abnormal status, which made
alarm light up and stopped all
the controls.
The device recovers naturally if
the trouble can be sorted out.
・Temperature controller is in abnormal status
because of noise and etc.
・Ambient temperature exceeds 40℃.

Alarm features
8
Alarm name Alarm display and operation Cause
Operation conditions
・Temperature sensor is disconnected or
short-circuited.
Sensor alarm
・Alarm is displayed
・Alarm LED illuminates
・The control is stopped and the
circulation pump stops.
℃
Alarm
Pump
PV
LED ON
Refrigeration unit
alarm
・Alarm message blinks.
・Alarm LED illuminates
・The control is stopped and the
circulation pump stops.
℃
Pump
PV
Blinks
Operation conditions
・Refrigeration unit high pressure switch
works or the refrigeration unit overload relay
works.
Canceling the alarm
・The alarm can be canceled with the [Set]} key
when the refrigerator high-pressure switch
or the refrigerator overload relay is reset.
℃
Pump
PV
Alternate display
of the alarm and the
measured temperature
Temperature
upper
limit alarm
・Alternate display of the alarm and the
measured temperature
・Alarm LED illuminates
・The control is stopped and the
circulation pump stops.
Operation conditions
・The temperature around the sensor exceeds
the upper limit.
Canceling the alarm
・Alarm can be cancelled by pressing the Set
key with the measured temperature lower
than the set upper limit.
※Default upper limit：＋80℃
※The user can change the set upper limit.
(Refer to P.19, 5-3. Operation of the
User Set Mode.)
℃
Pump
PV
Alternate display
of the alarm and the
measured temperature
Temperature
lower
limit alarm
・Alternate display of the alarm and the
measured temperature
・Alarm LED illuminates
・The control is stopped and the
circulation pump stops.
Operation conditions
・The temperature around the sensor exceeds
the lower limit.
Canceling the alarm
・Alarm can be cancelled by pressing the Set
key with the measured temperature higher
than the set lower limit.
※Default upper limit：-50℃
※The user can change the set lower limit.
(Refer to P.19, 5-3. Operation of the User
Set Mode.)
Alarm for recovery
from power failure
・Alternate display of the alarm and the
measured temperature
・Alarm LED illuminates
・Power failure recovery function
ON … Recovery to the state
immediately before Power OFF
Power failure recover function
OFF…Control, pump circulation OFF
℃
Pump
PV
Operation conditions
・During the temperature control operation
with setting Power Failure Recovery function,
[On] or [OFF], the power was off and switched
on.
Canceling the alarm
・The alarm can be canceled with the [Set] key.
※The user can change the ON/OFF
selection of power failure recovery
function.
(Refer to the user set mode operation
method of P.19. , 5-3. Operation of the
User Set Mode.)
Alarm
Alarm
Alarm
Alarm
Alternate display
of the alarm and the
measured temperature

4-2 Installation conditions
To keep the best performance of the product,
leave the space between product and wall, ceiling
plane.
The distance between the product and wall, ceiling
plane must be longer than the one mentioned in
the right picture.
Keep enough space around the unit.
CA-1116A Approx. 43 ㎏
Be careful during transport of
the product because it is heavy.
Do not place anything on top of the
product.
4-1 Installation environment
Be careful about the environment
of installation. In particular, pay
due attention on the location, air
conditioning, and ventilation.
CAUTION
Since air-cooled type refrigeration unit is
equipped with this product, heat is exhausted
from the unit.
Select the installation site that can be
ventilated well so that the ambient
temperature won’t rise because of exhausted
heat. Using the product in
high ambient temperature may worsen the
operation efficiency or cooling capability. Also,
refrigeration unit will be hot and operate under
high pressure, which may cause malfunction.
Select the installation site that meets the following
conditions.
●No direct sun light
●Ambient temperature must be from 5 to 40℃.
●Well-ventilated.
●No inflammable solid or liquid or gas around the unit.
●No dew condensation
●Lesser humidity and no dripping on the unit.
●Lesser dust
●Level and stable
（Check the weight of the product during operation.）
●Indoor use only
＊Do not block air flow orifice.
60cm
9
CAUTION
CAUTION
CAUTION
Installation
4
Do not block up an operation side and
the power supply .
In the area of operation side, power supply cord,
Residual current device, please secure space
to use a product safely to operate it anytime.
CAUTION
Air flow
Air flow

(1) Unlock the lock of the stopper of the caster.
If you press and lift the lever of caster’s
stopper, lock can be unlocked (Only front
two casters have stoppers).
(2）Move the unit to the installation site.
※Traveling over steps or surface irregularities may
cause extreme impact on the casters, possibly
resulting in damage. To avoid such an event, lift up
the product for traveling.
(3)At installation site, lock caster’s stopper.
Holding down the lever of caster can lock the stopper.
As refrigeration unit is equipped with the
main unit, do not lay down the product or
incline it more than 15°when carrying.
Do not incline the main unit more
than 15°
(4)Put supplied caster holders (4 pieces) into the
caster to fix.
Rush the caster stopper’s lever up to lock.
4-3 Installation
Caster
stopper
FREE
LOCK
Caster
Caster holder
Caster
（With stopper : Front wheel)
Caster
（No stopper attached ：
Back wheel）
10
CAUTION

(1) Check the voltage, phase and capacity of
the power source. Required power source
is as shown in right table.
(2) Check the type of outlet at the installation site. Length Thickness
(Outer dia.) Power plug Cross-
sectional
area of cable
2m Approx.7mm With earth
3-pole 1.0mm2
Specification of Power Cord
4-4 Utility connection
11
Inappropriate connection may cause a fire or
electric shock hazard.
Check the voltage, phase and
capacity of power source before
connecting.
WARNING
Over-current may cause cable burn, fire.
Do not use the branching
socket or table tap.
WARNING
Product model Power supply to connect
Voltage Capacity
CA-1116A 220V 10A
Without grounding the unit, the product may
cause electric shock hazard.
WARNING
The unit must be earthed.
Dirt on these parts may cause tracking or fire.
Remove the dirt on the grounding adapter,
outlet and mains connector.
CAUTION
（Do not connect the mains connector yet.）
If the outlet has earth terminal, mains
connector can be connected.
Do not use branching socket when connecting to
power source.
* The grounding adaptor is not supplied with this unit.
Power supply cord can be used
Manufacturer :
HRS-CMC ELECTRONICS CO.,LTD.
Type: H05VV-F3G1.0mm2(203+EF-28)
Ampere rating 10A ,Voltage rating
250V
Non-rewirable plug.
Do not mind in other makers either, but, please
choose the thing in line with a rating condition on
a ground pole.
WARNING
Do not use power supply cord
except the manufacturer
designation
Inappropriate connection may cause a fire or
electric shock hazard.

5-1 Preparation
12
Use extreme caution when using
combustible or inflammable solvent.
If you leave combustible or inflammable solvent
(ethanol and etc.) out at room temperature or
higher (lower for some solvent) , it may evaporate
and catch fire with some ignition source, and
cause explosion.
Ventilate the space well while using these solvent.
WARNING
Materials of the system interior include stainless
steel, brass (plating), fluorine resin, polyacetal (POM),
silicon rubber, modified polyphenylene ether (PPO),
ethylene propylen rubber (EPDM), isotropic ferrite,
ceramic, high-density carbon, special nitrile rubber
(NBR), flame-retardant PBT resin (polyethylene
terephthalate.
Always use the circulation solution that does not affect
these substances. Otherwise, these substances will
be corroded progressively, resulting in damage to the
pacts of circulation route. Do not use the ultra-pure
water or ion-exchanged water because they dissolve
CO2 gas in air to become acid, readily corroding
metals of the circulation route.
Use the circulation refrigerant that
does not affect the circulation route
material inside the unit.
CAUTION
Bore diameter of the hose joint must be
larger than 6mm. Use the hose at
appropriate length.
When using hose join that is not supplied with the
product, the bore diameter of the joint must be
larger than 6mm. Use the hose at appropriate
length. When the piping resistance is strong,
cooling capability or temperature distribution in the
circulation bath will be worsen because of small
quantity of circulation water.
CAUTION
Do not conduct closed operation or
idling of circulation pump.
These operation may cause malfunction.
CAUTION
Operation
5
90゜Elbow
Valve for adjusting
flow volume
Hose joint
Nozzle（WATER OUT）
Nozzle（WATER IN）
Nozzle
Setting nozzles (WATER IN AND OUT)
Lead the hose around while taking
care not to allow it to be buckled or
crushed.
Buckled or crushed hose may cause faulty cooling
of a counterpart unit or hose disconnection from
the nozzle, resulting in water leakage.
CAUTION
（1）Push 90°elbow into two nozzles (seal tape is
rolled around nozzle, hose joint and valve).
（2）Fix the elbow tightly and push hose joint (WATER
IN), valve for adjusting water volume and hose joint
(WATER OUT) into it.
＊Set the parts by following (1) and (2) in order.
In case that you set the joint first, the elbow can
be connected to nozzle.
1. Connecting piping and hose

When using the unit as a low temperature bath,
connect bypass hose to both WATER-OUT and
IN nozzle. If you should turn on circulation pump
in this status, the bath will be stirred, which
makes cooling efficiency worse. Fix the hose
band tightly (hose and hose band is not supplied
with the product).
Using the unit as a low temperature bath
2. Connecting drainage hose for tray
Remove the stopcock of drainage hose for tray
and set the vessel for receiving the drained water.
When the condensation is built up so often or
humidity is so high, tray will receive more
quantity of water. So check the tray regularly
and drain the water especially in the summer time.
＊The vessel for receiving drain water is
not supplied with this unit.
13
Drainage hose
for tray
Waste plug
for tray
Bypass hose
（3）Connect hose (Bore diameter: 9mm) to WATER-
OUT nozzle, WATER-IN nozzle and the device
that to be cooled down (sealed type). Fix the hose
with hose band (Hose and hose band is not
supplied with the product). Choose the hose that
can resist the solvents that has appropriate
pressure and heat resistance.
CAUTION
When you circulate a low temperature liquid,
please connect it with the hose which did an
insulation for prevention of dew condensation
and frostbite.
In any case, please fix it in a hose band
so that a hose does not fall out .
※Cold insulation hose is a consumable product.
Life of the hose differs depending on the use
condition, so please check it regularly and
replace it with new one if needed.

(1)Make sure that drain stopcock is attached to drain hose.
(2) Fill the water (approx. 14ℓ) to soak cooling coil into low
temperature circulation bath.
※Please put a water in the circulation bath slowly.
3. Filling cool water
Water level of the cooling
water circulator bath
(3) Make sure that water-out valve for
adjusting flow volume is closed.
Make sure that power switch is turned off
and plug the mains plug into AC outlet.
4. Connecting mains plug
(4) Set the bath cover on the main unit.
＊Use antifreeze if you use the unit at ＋7℃or
lower. However, if you use ethylene glycol or
Nybrine, the viscosity will be higher in low
temperature, which makes temperature
distribution in the bath worse.
In such a case, mix the moderate amount of
water ( Make sure the freezing temperature
when the liquid is concentrated.)
＊Make sure that there’s no foreign substance in
circulation liquid, which will cause malfunction.
Do not use pure water
Use tap water or softened tap water.
Do not use pure water or ion exchanged water.
These types of water solve carbon dioxide in
the air into acid solution, which could
corrode the metal of circulation route.
Also, pin hole of cooling coil or circulation
pump may be impaired because of the use of
these water.
14
Valve for adjusting flow volume
Close
Open
WATER IN
WATER OUT
※Do not move the unit ,
after filling liquid in the bath.

1. Setting the temperature
The set temperature can be changed
regardless of whether the pump is running
or stopped.
(1) Press [set] key. The displayed value on the
temperature indicator blinks and
temperature can be set (setting mode).
＊Factory default value is 20℃. However, if you
have already used the unit, the value you set
at previous time will be displayed.
(1) Setting the
temperature
Initial display for 1 second
and shows the measured
temperature
Initial display
5-2 How to operate the unit
Turn ON the Residual current device and the
power switch.
The display shows initially “cA” for about one
second, then the measured temperature.
15
Power
switch
Run
Stop
Pump
Alarm
Refrigerator
Pump
Set
PV
Run/Stop
℃
Run
Stop
Pump
Alarm
Refrigerator
Pump
Set
PV
Run/Stop
℃
Run
Stop
Pump
Alarm
Refrigerator
Pump
Set
PV
Run/Stop
℃
Run
Stop
Pump
Alarm
Refrigerator
Pump
Set
PV
Run/Stop
℃