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 silencer box against the entry of rainwater and
dust, for example by covering them with a vinyl sheet.
(2) Protect the motor connecting cables, electric components such as motors for indoor use,
and other parts against moisture.
3.3
Precautions for the location of installation
Install the fan in a place where the following conditions are satisfied:
(1) This fan is intended for indoor use. Install the fan in a place not exposed to the wind, rain,
etc. Furthermore, ensure to prevent rainwater from being sucked into the fan.
(2) Well-ventilated place with minimum exposure to dust or moisture
(3) Place with an ambient temperature of 0°C to 40°C
(4) Do not use the fan in a way that may cause condensation inside the machine at the
temperature and humidity of intake air on site.
(5) 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.
(6) Place where the fan can be easily and safely inspected and repaired.
Ensure that there is enough space for assembly, disassembly, repairs and other operations
of the fan.
(7) If you install the fan indoors, ensure that the room has doors that are wide enough to allow
the fan to pass through.
3.4 Foundation
(1) The foundation must be strong enough to withstand the weight of the fan as well as the
vibration and load during its rotation.
(2) Ensure to maintain the levelness of the foundation concrete without any ground subsidence.
If the ground is soft, reinforce it by driving piles or through other methods.
(3) The weight of the foundation needs to be 2 to 4 times the total weight of the fan including the
motor.
(4) To prevent the transmission of vibrations, isolate the machine foundation from the posts and
floor of the building.
(5) To prevent the transmission of vibrations between two or more foundations, isolate each
foundation.
(6) In principle, make “boxed-out” holes in the foundation concrete, and fix the foundation bolts
into the holes during the installation of the fan. For the positions of the foundation bolt holes,
refer to the external dimensions drawing.
(7) To lay down a foundation on the second or higher floors—for example for installing building
equipment, locate the foundation as close to wall(s) as possible while aligning the
foundation with a beam.
3-2
