U-5~48MX3 + U-8~48ME3XPQUrban Multi air conditioner4PW16236-1Operation manual1C ONTENTS Page1. Safety cautions............................................................................ 12. What to do before operation........................................................ 23. Remote controller........................................................................ 24. Changeover switch: Name and function of each switch .............. 35. Operation range .......................................................................... 36. Operation procedure ................................................................... 37. Optimum operation...................................................................... 58. Following symptoms are not air conditioner troubles .................. 59. Troubleshooting ........................................................................... 61. SAFETY CAUTIONSRead the following cautions carefully and use your equipmentproperly.Keep these warning sheets handy so that you can refer to themif needed.Also, if this equipment is transferred to a new user, make sure tohand over this user’s manual to the new user.U-5~48MX3XPQU-8~48ME3XPQ Urban Multi air conditioner Operation manualThank you for purchasing this Panasonic air conditioner.Carefully read this operation manual before using the airconditioner. It will tell you how to use the unit properly andhelp you if any trouble occurs. After reading the manual,file it away for future reference.WARNINGImproper handling can lead to such serious consequencesas death, severe injury or damage to the equipment.NOTE These instructions will ensure proper use of theequipment.Be sure to follow these important safety cautions.WARNINGIt is not good for your health to expose your body tothe air flow for a long time.In order to avoid electric shock, fire or injury, or if youdetect any abnormality such as smell of fire, turn offthe power supply and call your dealer for instructions.Ask your dealer for installation of the air conditioner.Incomplete installation performed by yourself may result ina water leakage, electric shock, and fire.Ask your dealer for improvement, repair, andmaintenance.Incomplete improvement, repair, and maintenance mayresult in a water leakage, electric shock, and fire.Never let the indoor unit or the remote controller getwet.It may cause an electric shock or a fireNever use a flammable spray such as hair spray,lacquer or paint near the unit.It may cause a fire.Never touch the air outlet or the horizontal bladeswhile the swing flap is in operation.Fingers may become caught or the unit may break down.Never replace a fuse with that of wrong ampere ratingsor other wires when a fuse blows out.Use of wire or copper wire may cause the unit to breakdown or cause a fire.Never put any objects into the air inlet or outlet.Objects touching the fan at high operating speed can bedangerous.Never press the button of the remote controller with ahard, pointed object.The remote controller may be damaged.Never pull or twist the electric wire of the remotecontroller.It may cause the unit to malfunction.Never inspect or service the unit by yourself.Ask a qualified service person to perform this work.To prevent refrigerant leak, contact you dealer.When the system is installed and runs in a small room, it isrequired to keep the concentration of the refrigerant, if byany chance coming out, below the limit. Otherwise, oxygenin the room may be affected, resulting in a seriousaccident.