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Page 3
HF-3024-8
OPERATING MANUAL
Cross Flow Fans MF Series
Thank you for purchasing an Oriental Motor product.
This Operating Manual describes product handling procedures
and safety precautions.
• Please read it thoroughly to ensure safe operation.
• Always keep the manual where it is readily available.
Introduction
Before using the fan
Only qualified personnel should work with the product.
Use the product correctly after thoroughly reading the section
“Safety precautions”.
The product described in this manual has been designed and
manufactured for use in general industrial machinery, and must
not be used for any other purpose. Oriental Motor Co., Ltd. is
not responsible for any damage caused through failure to
observe this warning.
Standard
.
CE Marking
This product is recognized by UL and certified by CSA, and
bears the CE Marking (Low Voltage Directive) in compliance
with the EN Standards.
●Standards
Standards Certification body
UL 507
CSA C22.2 No.113
UL
●Installation conditions (For EN/IEC Standards)
Overvoltage category II, Pollution degree 2, Class I equipment.
When connecting to a power supply of overvoltage category III,
supply power via the insulation transformer.
●Hazardous substances
RoHS (Directive 2002/95/EC 27Jan.2003) compliant
Safety precautions
The precautions described below are intended to prevent danger
or injury to the user and other personnel through safe, correct
use of the product. Use the product only after carefully reading
and fully understanding these instructions.
Warning
Handling the product without observing the instructions that
accompany a “Warning” symbol may result in serious injury or
death.
Do not use the product in explosive or corrosive
environments, in the presence of flammable gases,
locations subjected to splashing water, or near combustibles.
Doing so may result in fire, electric shock or injury.
Assign qualified personnel the task of installing, wiring,
operating/controlling, inspecting and troubleshooting the product.
Failure to do so may result in fire, electric shock or injury.
Do not transport, install the product, perform connections or
inspections when the power is on. Always turn the power off
before carrying out these operations. Failure to do so may
result in electric shock.
Turn off the power in the event the overheat protection
device (thermal protector) is triggered. Failure to do so may
result in injury or damage to equipment, since the fan will
start abruptly when the overheat protection device (thermal
protector) is automatically reset.
To prevent the risk of electric shock, use the fan for class I
equipment only.
Lüfter zur Verwendung in Geräten der Schutzklasse I.
Install the fan in an enclosure in order to prevent electric
shock or injury.
Install the fan so as to avoid contact with hands, or ground
it to prevent the risk of electric shock.
Die Gehäuse der Lüfter sind mit einer Schraube und
Zahnscheibe sicher mit dem geerdeten Gehäuse des
Gerätes zu verbinden.
Keep the input-power voltage within the specified range to
avoid fire and electric shock.
Connect the cables securely according to the wiring
diagram in order to prevent fire and electric shock.
Do not forcibly bend, pull or pinch the cable. Doing so may
fire and electric shock.
Turn off the power in the event of a power failure, or the fan
will suddenly start when the power is restored and may
cause injury or damage to equipment.
Do not disassemble or modify the fan. This may cause
electric shock or injury. Refer all such internal inspections
and repairs to the branch or sales office from which you
purchased the product.
Caution
Handling the product without observing the instructions that
accompany a “Caution” symbol may result in injury or property
damage.
Do not use the fan beyond its specifications, or electric
shock, injury or damage to equipment may result.
Keep your fingers and objects out of the openings in the fan.
This may cause injury.
Do not touch the motor during operation or immediately
after stopping. The surface is hot and may cause a skin
burn(s).
Do not hold the rotating parts (impeller) of the fan or lead
wire. This may cause injury.
Keep the area around the fan free of combustible materials
in order to prevent fire or a skin burn(s).
To prevent the risk of damage to equipment, leave nothing
around the fan that would obstruct ventilation.
Do not touch the rotating parts (impeller) when the fan is in
operation. This may cause injury. The use of the optional
fingerguard is recommended to ensure protection.
Wegen der Verletzungsgefahr dürfen die Lüfterflügel bei
Ventilatorbetrieb nicht berührt werden. Der Gebrauch des
als Sonderzubehör erhältlichen Fingerschutzes ist
empfehlenswert, um erhöhte Sicherheit zu gewährleisten.
When an abnormality is noted, stop the operation
immediately, or fire, electric shock or injury may occur.
The motor’s surface temperature may exceed
70 °C (158 °F), even under normal operating
conditions. If a fan is accessible during
operation, post the warning label shown in the
figure in a conspicuous position to prevent the
Warning label
risk of skin burn(s).
To dispose of the fan, disassemble it into parts and
components as much as possible and dispose of individual
parts/components as industrial waste.
Page 4
Preparation
To verify that the unit you've purchased is the correct one, check
the model number shown on the identification plate.
Report any incorrect or damaged item to the branch or sales
office from which you purchased the product.
The fan is designed and manufactured for installation in
equipment.
Install it in a well-ventilated location that provides easy access
for inspection. The location must also satisfy the following
conditions:
• Inside an enclosure that is installed indoors (provide vent holes)
• Operating ambient temperature
-
10 to +60 °C (+14 to +140 °F) (non-freezing)
• Operating ambient humidity 85%, maximum
(non-condensing)
• Area that is free of explosive atmosphere or toxic gas (such as
sulfuric gas) or liquid
• Area not exposed to direct sun
• Area free of excessive amount of dust, iron particles or the
like
• Area not subject to splashing water (rain, water droplets), oil
(oil droplets) or other liquids
• Area not subject to continuous vibration or excessive shocks
• Area free of radioactive materials, magnetic fields or vacuum
• Area free of excessive electromagnetic noise (from welders,
power machinery, etc.)
When using near a switching circuit or high-frequency power
supply, the induced current may flow inside the fan due to
electromagnetic noise (conductive noise, radiative noise). If
the induced current flows, the electric corrosion is caused in
the bearings of the fan. As a result, it may generate the noise
or shorten the service life of the products. Use the fan in the
environment that the electromagnetic noise does not cause.
How to install the fan
Install the fan onto an appropriate flat metal plate having
excellent vibration resistance and heat conductivity.
See the panel cut-out, mounting-hall reference drawing for
information on how to provide mounting holes on the equipment
used and secure the fan with screws (not supplied).
The screw size is M4 and the tightening torque is 1.4 N·m
(12.4 lb-in).
Air flow, rotation
• MF930 type, MF915 type
Air flow
Rotation
Air flow
Outlet side
• MF930B type, MF915B type
Air flow
Air flow
Outlet side
Rotation
Overheat protection
The fan uses a thermal protector for overheat protection. Once
the temperature reaches a specified level, the internal thermal
protector that has an automatic-return feature is triggered to stop
the fan operation. Be sure to turn off the power when checking
the thermal protector.
Operating temperature of thermal protectors
Open (Power OFF).....120±5 °C (248±9 °F)
Close (Power ON).......77±15 °C (170±27 °F)
• Unauthorized reproduction or copying of all or part of this
manual is prohibited.
• Oriental Motor shall not be liable whatsoever for any
problems relating to industrial property rights arising from
use of any information, circuit, equipment or device
provided or referenced in this manual.
• Characteristics, specifications and dimensions are subject
to change without notice.
• While we make every effort to offer accurate information
in the manual, we welcome your input. Should you find
unclear descriptions, errors or omissions, please contact the
nearest office.
•
trademarks of Oriental Motor Co., Ltd., in Japan and other
countries.