3-2
Hoist ring
3.2.1
Precautions for transportation
(1) Use the designated hoist ring provided on the casing to lift
the fan.
(2) When the fan is not provided with the hoist ring, lift it by
threading a rope or a wire under the casing or the common
base.
(3) Use as long ropes and wires as possible so that the fan
can be lifted at an angle of 90° or less, which prevents the
fan from being deformed/damaged by the lifting load.
3.2.2
Precautions for storage
(1) Protect the unit so that rust does not form during storage before installation or assembly.
In particular, take measures to protect the motor interior parts from rain water and dust, such
as covering the unit with vinyl sheet.
(2) Store the unit indoors.
Also for the equipment for outdoor use, protect its wiring cables from moisture.
3.3
Precautions for the location of installation
Install the fan in a place where the following conditions are satisfied:
3.3.1
Location of installation
(1) The unit should be installed at a place higher than the highest vent port of the smoke
ventilation line and the extension length of the air duct on the discharge side would be the
shortest.
(2) Install the unit at a place where maintenance/inspection is carried out easily.
(3) Well-ventilated place with minimum exposure to dust or moisture
(4) Place that is not accessible by unauthorized persons or that is impossible for them to
operate the fan at.
Take measures to prevent unauthorized persons from having access to the fan, for example
by installing a barrier.
(5) When using the unit outdoors, install it in a place not exposed to wind and rain. Otherwise,
use a smoke ventilation fan specified for outdoor use.
(6) When the unit is installed in an enclosed space like a machine room, an air intake port and
an air suction device must be installed to ensure required air quantity listed in the table
below for cooling down the motor.
Nominal diameter
50 70 80 90 100
110
120
Required air quantity
(m
3
/min)
10.0 16.0 20.0 20.0 27.5 27.5 27.5