Yamato NeoCool Circulator CF301 User manual

NeoCool Circulator
Model
CF301
Instruction Manual
- Second Edition -
Yamato Scientific America Inc．
Santa Clara，CA
.
Printed on recycled paper.
Thank you for choosing the CF301 NeoCool
circulator 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.

Contents
1. SAFETY PRECAUTIONS.........................................................................1
Explanation of Safety Symbols ....................................................................................1
Symbol Glossary .........................................................................................................2
Warnings & Cautions...................................................................................................3
2. PRE-OPERATION PROCEDURES..........................................................5
Installation Precautions................................................................................................5
Installation Procedure................................................................................................10
3. COMPONENT NAMES & FUNCTIONS .................................................12
Main Unit Overview....................................................................................................12
Control Panel.............................................................................................................13
4. OPERATION PROCEDURE...................................................................14
Main Operation..........................................................................................................14
Cooling Curves (Reference Data)..............................................................................15
Flow Rate/Lift Curves (Reference Data) ....................................................................16
Choosing CoolantforLow-TempApplications(ReferenceData) .........................................17
5. HANDLING PRECAUTIONS..................................................................18
6. INSPECTION & MAINTENANCE...........................................................20
7. STORAGE & DISPOSAL.......................................................................22
Extended Storage / Unit Disposal ..............................................................................22
Disposal Considerations............................................................................................22
8. TROUBLESHOOTING ...........................................................................23
9. SERVICE & REPAIR..............................................................................24
10. SPECIFICATIONS................................................................................25
11. WIRING DIAGRAM ..............................................................................26
CF301 Wiring Diagram..............................................................................................26
Replacement Items....................................................................................................26
12. LIST OF HAZARDOUS SUBSTANCES...............................................27

- 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,
electrocution, bone breaks/fractures or poisoning which, may cause
debilitation requiring extended hospitalization and/or outpatient treatment
（Note 3）Property damage is defined as damage to facilities, equipment, buildings or
other property.
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
DisconnectPower
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.27).
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 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.27).
NEVER disassemble or modify equipment.
Attempting to dismantle or modify unit in any way, may cause malfunction, fire or electric shock.
Keep upright.
Never tip or place unit on its side while moving or transporting. Damage to refrigeration system may
result. If briefly tilting unit to one side or the other is unavoidable during transport, refrain from turning
power on for at least 24 hours after positioning unit upright.

- 4 -
1. SAFETY PRECAUTIONS
Warnings & Cautions
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.
DO NOT touch coolant.
CF301 chillers are designed to maintain coolant fluid at temperatures below freezing. Touching or
handling coolant in the fill reservoir with bare hands or fingers may result in severe frostbite. Do not
touch!
DO NOT touch condenser fins.
Edges of condenser fins are very sharp. Do not contact with bare hands or skin. Laceration injuries may
result.

- 5 -
2. PRE-OPERATION PROCEDURES
Installation Precautions
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
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 appropriately.
Do not place CF301 unit:
・where flammable or corrosive gases/fumes will be 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 CF301 in a location with sufficient space, and venilation as specified as below.
More than
20cm
More than
20cm
Front side
More than 40cm
Main
Unit
Ungrounded outlet
100V AC only
Ground adapter
Grounded plug
Grounding wire
with Y-terminal
W
ｗ
G
Grounding prong
Grounded plug

- 6 -
2. PRE-OPERATION PROCEDURES
Installation Precautions
3. Place in a location free of flammables and explosives.
・Never place or operate near flammables or
explosives. BE units are 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.27).
4. DO NOT disassemble or modify.
5. Place on a level surface.
Attempting to disassemble or modifiy
this unit in any way may result in
malfunction, fire or electric shock.
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.
Approximate unit weight: 38Kg
Handle with care. Transportation and installation should always be performed by two or more
people.

- 7 -
2. PRE-OPERATION PROCEDURES
Installation Precautions
6. Place in a dry location.
CAUTION!
7. Connect to a properly rated power supply.
Connect power cable to a suitable facility outlet or terminal, according to the following
electrical requirements.
Power requirements:
CF301: 115V AC, 50/60Hz, 5.6A
NOTE)
Check the line voltage on outlet or terminal to be used and properly evaluate whether to utilize
a line being shared by other equipment. If the unit is not activated by turning on the main
power switch (ELB), take an appropriate course of action, such as connecting the unit to a
dedicated power source.
If multiple power cables are connected to a single outlet, input voltage to unit may drop,
causing degraded cooling and temperature control performance.
8. Install in a safe, well-ventilated area.
In the event of an earthquake or other unforeseen incident, equipment may unexpectedly shift
or fall, causing injury. Taking preventative steps to install unit in a safe location, away from
room access doors and out of harm’s way is strongly recommended.
Install unit so that side panel heat vents (see “Main Unit Overview” on P.12 for location) are
unobstructed and allowed to sufficiently diffuse heat. Failure to do so may result in excessive
temperatures inside the unit control panel, causing possible degraded CPU board
performance, malfunction or fire. See installation specifications on P.5 above.
Place unit where it will be free from liquid spray
and other moisture. Failure to do so may result
in control mechanisms becoming wet, causing
malfunction, electrical shock and/or fire.