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HF-3123-4
OPERATING MANUAL
Thank you for purchasing an Oriental Motor product.
This Operating Manual describes product handling procedures and
safety precautions.
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Please read it thoroughly to ensure safe operation.
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Always keep the manual where it is readily available.
AC Centrifugal Blowers
MBS
Series
Introduction
Before using the fan
Only qualified and educated 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 to be incorporated in general industrial
equipment. Do not use for any other purpose. Oriental Motor Co.,
Ltd. is not responsible for any damage caused through failure to
observe this warning.
Standard and 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
Applicable Standards Certification body
UL 507
CSA C22.2 No.113
UL
Installation conditions (For EN 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.
RoHS Directive
The products do not contain the substances exceeding the restriction
values of RoHS Directive (2011/65/EU).
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.
Caution
Handling the product without observing the
instructions that accompany a “Caution” symbol may
result in injury or property damage.
Warning
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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.
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Only qualified and educated personnel should be allowed to
perform installation, connection, operation and nspection/
troubleshooting of the product. Handling by unqualified and
uneducated personnel may result in fire, electric shock or injury.
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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.
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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.
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The fan for class I equipment. Be sure to ground the protective
earth conductor when installing the fan. Failure to do so may result
in electric shock.
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Install the fan in an enclosure in order to prevent electric shock or
injury.
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Keep the input-power voltage within the specified range to avoid
fire and electric shock.
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Connect the cables securely according to the wiring diagram in
order to prevent fire and electric shock.
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Do not forcibly bend, pull or pinch the cable. Doing so may result
in fire.
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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.
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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
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Do not use the fan beyond its specifications, or electric shock,
injury or damage to equipment may result.
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Keep your fingers and objects out of the openings in the fan. This
may cause injury.
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Do not touch the motor during operation or immediately after
stopping. The surface is hot and may cause a burn.
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Do not hold the lead wire. This may cause injury.
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Keep the area around the fan free of combustible materials in order
to prevent fire or a burn.
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To prevent the risk of damage to equipment, leave nothing around
the fan that would obstruct ventilation.
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Do not touch the rotating parts (runner) when the fan is in
operation. This may cause injury.
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When an abnormality is noted, stop the operation immediately, or
fire, electric shock or injury may occur.
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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 risk of burns.
Warning
label
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Dispose the product correctly in accordance with laws and
regulations, or instructions of local governments.
