1. Safety
precautions
1.1
Types and meanings of warning terms
This instruction manual divides precautions into the following four categories according to the
level of hazards (or the severity of the accident).
Be sure to understand the meanings of the following terms and comply with the content
(instructions) of the instruction manual.
Warning Term
Meaning
Danger
Indicates an imminently hazardous situation. Failure to observe the
procedures or instructions will result in death or serious injury.
Warning
Indicates a potentially hazardous situation. Failure to observe the
procedures or instructions may result in death or serious injury.
Caution
Indicates a potentially hazardous situation. Failure to observe the
procedures or instructions will result in minor or moderate injury or cause
damage to equipment or devices.
Note
Indicates information that is in particular to be noted or emphasized.
1.2 Safety
precautions
1.2.1
Precautions for installation
(1) Install the fan considering the center of gravity and weight.
(2) Install it according to the instruction manual.
(3) Do not install it anywhere exposed to direct flame or high temperature.
(4) Do not install it anywhere with high humidity, such as a bathroom.
(5) Do not install it in any places where toxic gases are produced from acids, alkalis, organic
solvent, paint or other substances or where corrosive gases are produced, for example in
machine shops or chemical plants.
(6) Install the outdoor air intake in a position far away from the exhaust vents of combustion gas,
etc.
(7) Be sure to install a ground fault interrupter to the main power.
(8) Only qualified personnel such as electrical engineers are allowed to carry out the electrical
wiring work. Before working, be sure to turn off the main power.
(9) Do not forcibly bend, pull or pinch the motor lead wire.
Failure to observe this may result in an electric shock.
(10) Do not expose the motor to water.
If it gets wet, the resulting short circuit and/or insulation degradation of the electric circuit
may damage the fan.
(11) Install a protective wire mesh etc. to the open air intake.
1.2.2
Precautions for operation
(1) Before starting the fan, ensure that all the relevant workers are informed of the operation
and that there are no workers in the dangerous zone.
(2) Only those who are authorized by the site manager are allowed to operate the fan.
(3) Ensure to apply the rated voltage to the fan.
(4) When the fan is running, never touch any parts of the unit unless it is absolutely necessary.
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