Immersion Cooler
NeoCool Dip
Model BE201/201F/301
Instruction Manual
First Edition
● Thank you for choosing BE series immersion Neo
Cool Dip coolers from Yamato Scientific Co., Ltd.
● For proper equipment operation, please read this
instruction manual thoroughly before use. Always
keep equipment documentation safe and close at
hand for convenient future reference.
Warning: Read instruction manual warnings and
cautions carefully and completely before
proceeding.
Yamato Scientific America Inc．
Santa Clara，CA
Printed on recycled paper
Table of contents
1. SAFETY PRECAUTIONS ................................................................................................................. 1
Explanation of Safety Symbols .......................................................................................................... 1
Symbol Glossary ................................................................................................................................ 2
Warnings & Cautions.......................................................................................................................... 3
2. PRE-OPERATION PROCEDURES .................................................................................................. 4
Placement Precautions & Procedures ............................................................................................... 4
3. COMPONENT NAMES & FUNCTIONS .......................................................................................... 10
Main Unit Overview .......................................................................................................................... 10
4. OPERATION PROCEDURE ............................................................................................................ 12
Main Operation ................................................................................................................................. 12
Cooling Capacity Curves (Reference Data) ..................................................................................... 13
Choosing Coolant for Low-Temp Applications (Reference Data) ............................................................ 15
5. HANDLING PRECAUTIONS .......................................................................................................... 16
6. INSPECTION & MAINTENANCE ................................................................................................... 17
7. STORAGE & DISPOSAL ................................................................................................................ 18
Extended Storage / Unit Disposal .......................................................................................................... 18
Disposal Considerations .................................................................................................................. 18
8. TROUBLESHOOTING .................................................................................................................... 19
Troubleshooting Guide ..................................................................................................................... 19
9. SERVICE & REPAIR ....................................................................................................................... 20
10. SPECIFICATIONS ......................................................................................................................... 21
11. WIRING DIAGRAM ....................................................................................................................... 22
12. LIST OF HAZARDOUS SUBSTANCES ....................................................................................... 23
1
1. SAFETY PRECAUTIONS
Explanation of Safety Symbols
A Word Regarding Symbols
Various symbols are provided throughout this text and on equipment to
ensure safe operation. Failure to comprehend the operational hazards and
risks associated with these symbols may lead to adverse results as explained
below. Become thoroughly familiar with all symbols and their meanings by
carefully reading the following text regarding symbols before proceeding.
Warning
Caution
Signifies a situation which may result in minor injury (Note 2)
and/or property damage (Note 3)
(Note 1) Serious injury is defined as bodily wounds, electrocution, bone
breaks/fractures or poisoning, which may cause debilitation requiring
extended hospitalization and/or outpatient treatment.
(Note 2) Minor injury is defined as bodily wounds or electrocution, which will not
require extended hospitalization or outpatient treatment.
(Note 3) Property damage is defined as damage to facilities, equipment, buildings or
other property. （ Note 1 ） Serious injury is defined as bodily wounds,
Symbol Meanings
Signifies warning or caution.
Specific explanation will follow symbol.
Signifies restriction.
Specific restrictions will follow symbol.
Signifies an action or actions which operator must undertake.
Specific instructions will follow symbol.
Signifies a situation which may result in serious
injury or death (Note 1)
2
1. SAFETY PRECAUTIONS
Symbol Glossary
Warning
General Warning
Danger!: High
Voltage
Danger!:
Extremely Hot
Danger!: Moving
Parts
Danger!: Blast
Hazard
Caution
General Caution
Caution:
Shock Hazard!
Caution: Burn
Hazard!
Caution: Do Not
Heat Without
Water!
Caution: May
Leak Water!
Caution: Water
Only
Caution: Toxic
Chemicals
Restriction
General
Restriction
No Open Flame
Do Not
Disassemble
Do Not Touch
Action
General Action
Required
Connect Ground
Wire
Level Installation
Required
Disconnect Power
Inspect
Regularly
3
1. SAFETY PRECAUTIONS
Warnings & Cautions
Warning
Never operate equipment near combustible gases/fumes.
Do not install or operate CF301 unit near flammable or explosive gases/fumes. Unit is NOT fire
or blast resistant. Negligent use could cause a fire/explosion. See “List of Hazardous
Substances” (P.24).
Always ground equipment.
Always ground this unit properly to avoid electric shock.
DO NOT operate equipment when abnormalities are detected.
If smoke or unusual odors begin emitting from unit, or if any other abnormalities are detected,
terminate operation immediately, turn off main power switch (Earth Leakage Breaker - “ELB”) and
disconnect power cable. Continued operation under such conditions may result in fire or electric
shock.
DO NOT operate with bundled or tangled power cable.
Operating unit with the power cable bundled or otherwise tangled, may cause power cable to
overheat and/or catch fire.
DO NOT damage power cable.
Damaging the power cable by forcibly bending, pulling or twisting may cause fire or electric
shock to the operator.
DO NOT process hazardous substances.
Never process explosive or flammable items. Fire or explosion may result. See “List of
Hazardous Substances” (P.24) for more information on these items.
DO NOT handle flammable substances without proper ventilation.
Be sure there is adequate ventilation when working with certain flammable substances (such as
ethanol, etc.), which evaporate quickly at or below room temperature, and emit flammable fumes.
Insufficient ventilation may cause a fire or explosion. See “List of Hazardous Substances” (P.24).
NEVER disassemble or modify equipment.
Attempting to dismantle or modify unit in any way, may cause malfunction, fire or electric shock.
Caution
DO NOT operate equipment during thunderstorms.
In the event of a thunderstorm, terminate operation and turn off main power switch (ELB)
immediately. A direct lightning strike may cause damage to equipment, or result in fire or electric
shock.
4
2. PRE-OPERATION PROCEDURES
Placement Precautions & Procedures
Warning
1. Ground wire MUST be connected properly.
・ Ground wire must be connected to a proper grounding line or terminal in order to
prevent electric shock.
・ Never connect ground wire to gas lines or water pipes.
・ Never connect ground wire to telephone grounding lines or to lightning conductor rods.
Doing so may result in fire or electrical shock.
・ Never insert multiple plugs into a single outlet. Doing so may result in power cable
overheating, fire or drop in voltage.
Connect to grounded outlet
Outlet with ground receptacle
When no ground terminal is found:
●Grounding to Electrical Equipment Technical
Standards, Section 19, class D (Grounding
Resistance Max. 100Ω) is required in Japan.
Contact a local dealer, electrician, or Yamato
Sales office for location-specific electrical
requirements.
Use ground adapter for ungrounded outlets
Ground adapter
Outlet with no ground receptacle
Ground adapter
●Insert grounded plug into ground adapter.
Connect grounding wire (green) from ground
adapter to a ground terminal.
2. Place in suitable locations.
Do not place BE series unit:
・ where flammable or corrosive gases/fumes are generated.
・ where external temperature will exceed 35ºC, will fall below 5ºC or will fluctuate.
・ in excessively humid or dusty locations.
・ where there is constant vibration.
・ where power supply is erratic.
・ in direct sunlight or outdoors
Place unit in locations with sufficient space, and venilation as specified as below.
20 ㎝ or more
BE
Unit
20 ㎝ or more
Ground wire
W
3-pronged plug with
ground
ｗ
G
3-pronged plug with
ground
20 ㎝ or more
Ungrounded outlet
115V AC only
20cm or more (rear)
5
2. PRE-OPERATION PROCEDURES
Placement Precautions & Procedures
Warning
3. Place in locations free of flammables and explosives.
・ Never place or operate unit near flammables or explosives. BE unit is NOT fire or blast
resistant. Simply switching the main power switch (ELB) “ON” or “OFF” can produce a
spark, which could relay during operation, causing a fire or explosion when near
flammable or explosive fluids, chemicals or gases/fumes.
See “List of Hazardous Substances” (P.24).
4. DO NOT disassemble or modify.
Attempting to disassemble or modifiy this unit in any way may result in malfunction, fire or
electric shock.
6
2. PRE-OPERATION PROCEDURES
Placement Precautions & Procedures
Warning
5. Place in dry locations.
Place unit where it will be free from liquid spray and other moisture. Failure to do so may
result in control mechanisms or internal components becoming wet, causing malfunction,
electrical shock and/or fire.
Caution
6. Place on level surfaces.
Place unit on a level and even surface. Failure to do so may result in abnormal vibrations or
noise and damage to the refrigeration system.
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