Daikin VRV FXZQ07MVJU9, Installation Manual

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2 3P184443-12N English
• If refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may
produce toxic gas if it comes in contact with fire. Exposure to this gas could cause severe
injury or death.
• After completing the installation work, check that the refrigerant gas does not leak throughout
the system.
• Do not install unit in an area where flammable materials are present due to risk of explosions
that can cause serious injury or death.
• Safely dispose all packing and transportation materials in accordance with federal/state/local
laws or ordinances. Packing materials such as nails and other metal or wood parts, including
plastic packing materials used for transportation may cause injuries or death by suffocation.
WARNING
• Only qualified personnel must carry out the installation work. Installation must be done in
accordance with this installation manual. Improper installation may result in water leakage,
electric shock, or fire.
• When installing the unit in a small room, take measures to keep the refrigerant concentration
from exceeding allowable safety limits. Excessive refrigerant leaks, in the event of an accident
in a closed ambient space, can lead to oxygen deficiency.
• Use only specified accessories and parts for installation work. Failure to use specified parts
may result in water leakage, electric shocks, fire, or the unit falling.
• Install the air conditioner on a foundation strong enough that it can withstand the weight of the
unit. A foundation of insufficient strength may result in the unit falling and causing injuries.
• Take into account strong winds, typhoons, or earthquakes when installing. Improper
installation may result in the unit falling and causing accidents.
• Make sure that a separate power supply circuit is provided for this unit and that all electrical
work is carried out by qualified personnel according to local, state and national regulations.
An insufficient power supply capacity or improper electrical construction may lead to electric
shocks or fire.
• Make sure that all wiring is secured, that specified wires are used, and that no external forces
act on the terminal connections or wires. Improper connections or installation may result in
fire.
• When wiring, position the wires so that the control box cover can be securely fastened.
Improper positioning of the control box cover may result in electric shocks, fire, or the
terminals overheating.
• Before touching electrical parts, turn off the unit.
• Be sure to install a ground fault circuit interrupter if one is not already available. This helps
prevent electrical shocks or fire.
• Securely fasten the outside unit terminal cover (panel). If the terminal cover/panel is not
installed properly, dust or water may enter the outside unit causing fire or electric shock.
• When installing or relocating the system, keep the refrigerant circuit free from substances
other than the specified refrigerant (R410A) such as air. Any presence of air or other foreign
substance in the refrigerant circuit can cause an abnormal pressure rise or rupture, resulting in
injury.
• Do not change the setting of the protection devices. If the pressure switch, thermal switch, or
other protection device is shorted and operated forcibly, or parts other than those specified by
Daikin are used, fire or explosion may occur.