Do not install the air conditioner at any placewhere there is a danger of flammable gas leakage.In the event of a gas leakage, build-up of gasnear the air conditioner may result in a fire.Carry out drain piping properly to ensurecomplete drainage.If drain piping is not carried out properly, drainwill not flow out. Then, dirt and debris may beaccumulated in the drain piping and may causewater leakage. If it occurs, stop the air conditionerand call your local dealer for assistance.2. WHAT TO DO BEFORE OPERA-TIONThis operation manual is for the following systemwith standard control. Before initiating operation,contact your local dealer for the operation thatcorresponds to your system.Indoor unitOutdoor unitUnit withremotecontrollerUnit without remotecontroller(When used assimultaneousoperation system)• Heat pump typeThis system provides cooling, heating, automatic,program dry, and fan operation modes.• Cooling only typeThis system provides COOLING, DRY, and FANOPERATION modes.PRECAUTIONS FOR GROUP CONTROLSYSTEM OR TWO REMOTE CONTROLLERSCONTROL SYSTEMThis system provides two other control systemsbeside individual control (one remote controllercontrols one indoor unit) system. Confirm thefollowing if your unit is one of the following controlsystem type.• Group control systemOne remote controller controls up to 16 indoor units.All indoor units are equally set.• Two remote controllers control systemTwo remote controllers control one indoor unit (Incase of group control system, one group of indoorunits).The unit is individually operated.NOTE• Contact your local dealer in case of changing thecombination or setting of group control and tworemote controllers control system.• Please do not change the combination andsettings for the group operation and two remotecontrollers control systems by yourself, but besure to ask your local dealer.• Read the operation manual attached to theremote controller you are using.When using a wireless remote controller, refer to theoperation manual attached to the wireless remotecontroller kit.If your installation has a customized controlsystem, ask your local dealer for the operation thatcorresponds to your system.Names and functions of partsabcdoefghijklmna Drain discharge device (built-in)b Drain pan inspection windowcRemote controllerDepending on the system configuration, theremote controller is not provided.d Wiring between the indoor and outdoor unitse Air outlet grille (Field supply)f Exhaust duct (Field supply)g Refrigerant pipingh Drain pipingi Model name (Model name plate)j Air filter (Optional parts)k Suction filter chamber (Optional parts)l Suction duct (Field supply)m Suction grille (Field supply)nEarth wiringThe wiring passes electricity from the insideunit to the earth to prevent accidental electricalshock.o Power supply wiringEnglish 4