Daikin VRV Series - Definitions; Meaning of Warnings and Symbols; Meaning of Used Terms; Introduction

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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re.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ammable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qualied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re.
• 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deciency.
• Useonlyspeciedaccessoriesandpartsforinstallationwork.Failuretousespeciedparts
mayresultinwaterleakage,electricshocks,re,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insufcient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qualiedpersonnelaccordingtolocal,stateandnationalregulations.
Aninsufcientpowersupplycapacityorimproperelectricalconstructionmayleadtoelectric
shocksorre.
• Makesurethatallwiringissecured,thatspeciedwiresareused,andthatnoexternalforces
act on the terminal connections or wires. Improper connections or installation may result in
re.
• 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,re,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re.
• 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reorelectricshock.
• When installing or relocating the system, keep the refrigerant circuit free from substances
otherthanthespecied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speciedby
Daikinareused,reorexplosionmayoccur.