Hitachi airCloud HC-IOTGW Installation & Maintenance Manual page 5

NOTICE Take the following precautions to reduce the risk of property damage.
● Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant
cycle during installation work. Foreign matter could damage internal components or cause
blockages.
● Do not install this unit in any place where silicon gases can coalesce. Any amount of drainage
moisture condensate could settle inside of the electrical box, possibly causing electrical
failures.
● When installing the unit in a hospital or other facility where electromagnetic waves are
generated from nearby medical and/or electronic devices, be prepared for noise and electronic
interference Electromagnetic Interference (EMI). Do not install where the waves can directly
radiate into the electrical box and controller cable. Inverters, appliances, high-frequency
medical equipment, and radio communications equipment may cause the unit to malfunction.
The operation of the unit may also adversely affect these same devices. Install the unit at
least 3m (approximately 10ft.) away from such devices.
● Do not install the unit in any location where animals and plants can come into directly.
Exposure could adversely affect the animals and plants.
● Do not install the unit with any downward slope to the side of the drain boss. If you do, you
may have drain water flowing back which may cause leaks.
● Do not install the unit in any place where oil can seep onto the units, such as table or seating
areas in restaurants, and so forth. For these locations or social venues, use specialized units
with oil-resistant features built into them. In addition, use a specialized ceiling fan designed
for restaurant use. These specialized oil-resistant units can be ordered for such applications.
However, in places where large quantities of oil can splash onto the unit, such as a factory,
even the specialized units cannot be used. These products should not be installed in such
locations.
Installation Precautions
Take the following precautions to reduce the risk of electric shock, fire or
WARNING
!
explosion resulting in serious injury or death.
● When installing the unit into...
* A wall: Make sure the wall is strong enough to hold the unit's weight. It may be necessary to
construct a strong wood or metal frame to provide added support.
* Damp or uneven areas: Use a raised concrete pad or concrete blocks to provide a solid,
level foundation for the unit to prevent water damage and abnormal vibration.
* An area with high winds: Securely anchor the device down with bolts and a metal frame.
Provide a suitable air baffle.
● Do not install the unit in the following places. Doing this can result in an explosion, fire,
deformation, corrosion, or product failure.
* Explosive or flammable atmosphere
* Where a fire, oil, steam or powder can directly enter the unit, such as nearby or above a
kitchen stove.
* Where oil (including machinery oil) may be present.
* Where corrosive gases such as chlorine, bromine, or sulfide can accumulate, such as near
a hot tub or hot spring.
* Where dense, salt-laden airflow is heavy, such as in coastal regions.
* Where the air quality is of high acidity.
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