1-1
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 placement and installation
(1) Move and place the fan considering the center of gravity and weight.
(2) Install it according to the instruction manual.
(3) 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.
(4) 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.
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.
(5) Do not put your fingers or other objects into the air intake or exhaust vents.
(6) Do not place any objects around the air intake or exhaust vents of the fan.
(7) Remove any tools and other objects from the top of the fan before operation.
(8) Do not operate the fan if there are any defects or faulty parts.
1.2.3
Precautions for maintenance and inspection
(1) Carry out test run and inspection periodically according to the technical guideline for smoke
ventilation fan.
(2) Maintenance and inspection must be carried out only by personnel who have been trained to
handle the fan.
(3) Before starting maintenance or inspection, ensure to inform the relevant personnel of the
operation.