If air or any other gas is mixed in the refrigerant, the gas
pressure in the refrigeration cycle becomes abnormally high
and it as a result causes pipe burst and injuries on persons.
• Do not modify this unit by removing any of the safety
guards or by by-passing any of the safety interlock
switches .
• Exposure of unit to water or other moisture before
installation may cause a short-circuit of electrical parts .
Do not store it in a wet basement or expose to rain or water.
• After unpacking the unit, examine it carefully if there is
possible damage .
• Do not install in a place that might increase the vibration of
the unit .
• To avoid personal injury (with sharp edges), be careful
when handling parts .
• Perform installation work properly according to the
Installation Manual .
Inappropriate installation may result in water leakage, electric
shock or fire.
• When the air conditioner is installed in a small room,
provide appropriate measures to ensure that the
concentration of refrigerant leakage occur in the room
does not exceed the critical level .
• Install the air conditioner securely in a location where the
base can sustain the weight adequately .
• Perform the specified installation work to guard against an
earthquake .
If the air conditioner is not installed appropriately, accidents
may occur due to the falling unit.
• Ventilate the air immediately if the refrigerant gas leaks
during installation .
If the leaked refrigerant gas comes in contact with fire, noxious
gas may generate.
EN-7
• After the installation work, confirm that refrigerant gas does
not leak .
If refrigerant gas leaks into the room and flows near a fire
source, such as a cooking range, noxious gas might generate.
• Electrical work must be performed by a qualified electrician
in accordance with the Installation Manual .
Make sure the air conditioner uses an exclusive power
supply .
An insufficient power supply capacity or inappropriate
installation may cause fire.
• Install a circuit breaker that meets the specifications in the
installation manual, NEC and local codes .
• Use the specified wires for wiring connect the terminals
securely fix.
To prevent external forces applied to the terminals from
affecting the terminals .
• Conform to the regulations of the local electric company
when wiring the power supply .
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a
risk of exposure to a combustible gas .
If a combustible gas leaks, and stays around the unit, a fire may
occur.
• Due to the use of the mildly flammable refrigerant R454B,
there are safety and legal installation conditions for
installing equipment such as indoor units, Outdoor units,
and Shut-off Valve boxes .
Install each unit according to the section "Installation
conditions".
4
EN-8