
1
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.
• 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.
• Be sure to ground the protective earth terminal when installing the
fan. Failure to do so may result in electric shock.
Das Erdungskabel wird an dem als Erde gekennzeichneten Pol
Anschlußkasten angeklemmt.
• 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. Failure to do so may
result in fire.
• Be sure to insulate the connection terminal of the variable resistor.
Failure to do so may result in electric shock.
• The fan (circuit) is not provided with an overcurrent protective
function.
For connection with the power supply, install an overcurrent
protection device (such as a circuit breaker). Failure to do so may
result in fire.
• 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
• 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 burn.
• Do not hold the rotating parts (blades) 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 burn.
• To prevent the risk of damage to equipment, leave nothing around
the fan that would obstruct ventilation.
• Install an overload protection device and current leakage breaker.
Failure to do so may result in fire.
• Do not touch the rotating parts (blades) 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,
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.
• To dispose of the fan, disassemble it into parts and components as
much as possible and dispose of individual parts/components as
industrial waste.
Note
OPERATING MANUAL
Varioflow Fans MRS18V2 type
HF-3027-8
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
Overvoltage category II, Pollution degree 2, Class Iequipment
When connecting to a power supply of overvoltage category III, supply
power via the insulation transformer.
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.
Handling the product without observing the
instructions that accompany a “Warning” symbol
may result in serious injury or death.
Handling the product without observing the
instructions that accompany a “Caution” symbol
may result in injury or property damage.
The items under this heading contain important
handling instructions that the user should observe to
ensure safe use of the product.
Warning
• 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.
Warning label
Standards Certification body Standards File No.
UL 507 UL E58377
CSA C22.2 No.113
Installation conditions (For EN/IEC Standards)
Warning
Caution