Yamato CF800 User manual

Neo-cool Circulator
Model CF800
Instruction Manual
- Second Edition -
Yamato Scientific America Inc．
Santa Clara，CA
This paper has been printed on recycled paper
Thank you for purchasing " Neo-cool Circulator,
CF 800" 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.

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 ................................................................................5
Requirements for Installation........................................................................................5
Description and Function of Each Part...................................................10
Main Unit and Control panel.......................................................................................10
Installation Method...................................................................................12
Operation Method.....................................................................................14
Procedure of Operation..............................................................................................14
Heating and cooling curve, cooling capacity curve (reference data)...........................15
Flow Rate and Head (reference data)........................................................................16
Selecting heat medium for lower temperature (reference data)..................................17
Handling Precautions...............................................................................18
Maintenance Method................................................................................21
Daily Inspection and Maintenance..............................................................................21
Long storage and disposal......................................................................23
When not using this unit for long term / When disposing............................................23
Notes about disposition..............................................................................................23
In the Event of Failure…...........................................................................24
After Service and Warranty......................................................................25
Specification.............................................................................................26
Wiring Diagram.........................................................................................27
Replacement Parts Table .........................................................................28
Reference..................................................................................................29
List of Dangerous Substances ...................................................................................29
Standard installation manual...................................................................30

1
Cautions in Using with Safety
Explanation
MEANING OF ILLUSTRATED SYMBOLS
Varioussymbolsare 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 warningsand improper handling is divided as shown below.Be sure that you
understand the warnings and cautions in thismanual 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 performed.
A detailed message with instructions is shown adjacent to the symbol.
Illustrated Symbols

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,
disconnectthe
powerplug
Compulsion,
periodical
inspection

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 page29 “List of Dangerous Substances”.)
Always ground this unit
Always ground this unit on the power equipment side in order to avoid electrical shock due to a power
surge.
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.
Pay special attention to the measure for flammability
and handling of flammable solvent
Leaving at the temperature higher than the room temperature may vaporize the flammable material
(ethanol, etc.). There might be the case that some flammable liquid might be vaporized at the
temperature lower than the room temperature. The result of such careless handling could cause the
fire or explosion. Do provide the vaporization with enough during the operation.
Never try to touch a hot part.
Some parts of the unit are hot during and immediately after operation. Take special care for possible
burning.
Do not disassemble or modify this unit
Do not disassemble or modify this unit. Fire or electrical shock or failure may be caused.

4
Cautions in Using with Safety
Fundamental Matters of “WARNING!”and “CAUTION!”
CAUTION!
When a thunder is heard
When a thunder is heard, turn the main power off immediately. A malfunction, fire or an electrical shock
may result.
Do not touch the cooling fin with bare hands
Do not touch the cooling fin with bare hands during maintenance, for the edge of the cooling fin is too
sharp to cut your hand.

5
Before Using this unit
Requirements for Installation
WARNING!
1. Be sure to connect the ground wire.
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 bellow 5℃or above 35C.
Ambient temperature fluctuates violently.
There is direct sunlight.
There is excessive humidity and dust.
There is a constant vibration.
Outdoor
Install this unit on a stable place with the space as shown below.
More than
20cm
More than
20cm
Front side
More than 40cm
Main
Unit

6
Before Using this unit
Requirements for Installation
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 page29 “List of Dangerous
Substances”.
4. Do not modify
5. Do not topple or tilt this unit
Modification of this unit is strictly
prohibited. This could cause a failure.
Set this unit to the flattest place. This
unit incorporates the refrigerator. Do
not topple or tilt it.
CAUTION!
6. Use specified receptacle for power source
Choose a correct power distribution board or receptacle that meets the unit’s rated electric
capacity.
Electric capacity:
220V AC, 50/60Hz, 7A(I include service power outlet AC100V 5A)
NOTE)
Starburst connection with a branching receptacle or extended wiring with a cord reel lowers
electrical power voltage, which may cause the degradation of refrigeration capability.

7
Before Using this unit
Requirements for Installation
7. Before/after installing
It may cause injure to a person if this unit falls down or moves by the earthquake and the
impact. etc..To prevent, take measures that the unit cannot fall down, and not install to busy
place.
Though this unit has the air-cooled refrigerator, the device exhausts the heat. Do provide
the vaporization with enough so as not to raise the ambient temperature caused by the
exhaust of the heat, or install this unit with its air controlled completely. If the ambient
temperature becomes high, the operation efficiency becomes worse, and could cause the
malfunction of the device by high temperature and humidity.
8. 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 receptacl which is supplied appropriate power and voltage.
9. Before/after installing
Connect the circulation port of the main
body to the coolant device securely so
as not to leak cooling liquid.
Closing the circulation path with the
solenoid valve or throttle valve might
cause the malfunction of the pump such
as water leakage.
Please open the stop valve discharge
and the return at the time of the pump
driving by all means.
Pay attention to the over-throttle. Keep
minimum flow rate of circulating solution
more than 10% of Pump Max.Flow Rate
according to Specification Table on
page 26.
In case that there are solenoid valve on
the device to be performed the
circulation cooling, or in case that the
flow rate of the device is lower than the
1.5 liter per min. set the bypass circuit
between the main device and peripheral
devices.
Return
Discharge
hose
Bypass Circuit
Connecting Port
(φ
10.5 hose nipple)
External equipment