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SAFETY CAUTION
• Please read this “Safety Cautions” thoroughly before installation to install the air conditioner correctly.
• The important contents concerned to the safety are described in the “Safety Cautions”.
Be sure to keep them. For Indications and their meanings, see the following description.
n
Explanation of indications
WARNING
Indicates possibilities that a death or serious injury of personnel is caused by an incorrect handling.
CAUTION
Indicates contents that an injury (*1) or property damage (*2) only may be caused when an incorrect work has been
executed.
∗
1 : “Injury” means a hurt, a burn, or an electric shock which does not require hospitalization or a long-term going to the
hospital.
∗
2 : “Property damage” means an enlarged damage concerned to property, or breakage of materials.
• After installation work has finished, check there is no trouble by a test operation, and explain using
method and maintenance method to the customers based on the Owner’s Manual.
Please ask the customers to keep this Installation Manual together with the Owner’s Manual.
WARNING
Ask a shop or a professional dealer to install the air conditioner.
If you will install by yourself, a fire, an electric shock, or water leak is caused.
Using the tool or piping materials exclusive to R410A, install the air conditioner surely according
to this Installation Manual.
The pressure of the used HFC system R410A refrigerant is higher approx. 1.6 times of that of the former refrigerant.
If the exclusive piping materials are not used, or there is imperfection in installation, a crack or an injury is caused
and also a water leak, an electric shock, or a fire may be caused.
Take measures so that the refrigerant does not exceed the limit concentration even if it leaks
when installing the air conditioner in a small room.
For the measures not to exceed the limit of concentration, contact the dealer. If the refrigerant leaks and it exceeds
the limit of concentration, an accident of oxygen shortage is caused.
Install the air conditioner at a place which is satisfactorily bearable to weight.
If strength is insufficient, the unit may fall down resulting in human injury.
Perform a specified installation work against a strong wind such as typhoon or earthquake.
If the air conditioner is imperfectly installed, an accident by falling or dropping may be caused.
If refrigerant gas leaks during installation work, ventilate the room.
If the leaked refrigerant gas approaches to fire, noxious gas may generate.
After installation work, confirm that refrigerant the refrigerant gas does not leak.
If refrigerant gas leaks in the room, and approaches to fire such as fan heater, stove or kitchen range, generation of
noxious gas may be caused.
Never recover refrigerant in the outdoor unit.
Be sure to use a refrigerant recovery device to recover refrigerant in reinstallation or repair work.
Recovery of refrigerant in the outdoor unit is unavailable; otherwise a serious accident such as crack or human injury
is caused.
A person qualified for the electric work should deal with the electric construction conforming to
the regulations of the local electric company and the Installation Manual. Be sure to use the
exclusive circuit.
If there is capacity shortage of the power supply circuit or incomplete installation, a fire or an electric shock is
caused.
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