219. HOW TO INSTALL WIRELESS REMOTECONTROLLER RECEIVERNOTERefer to the Operating Instructions attached to the optionalWireless Remote Controller Receiver.10. APPENDIX■ Care and CleaningWARNING● For safety, be sure to turn the air conditioner off andalso to disconnect the power before cleaning.● Do not pour water on the indoor unit to clean it. This willdamage the internal components and cause an electricshock hazard.Air intake and outlet side (Indoor unit)Clean the air intake and outlet side of the indoor unit with avacuum cleaner brush, or wipe them with a clean, soft cloth.If these parts are stained, use a clean cloth moistened withwater. When cleaning the air outlet side, be careful not to forcethe vanes out of place.CAUTION● Never use solvents or harsh chemicals when cleaningthe indoor unit. Do not wipe plastic parts using very hotwater.● Some metal edges and the fins are sharp and may causeinjury if handled improperly; be especially careful whenyou clean these parts.● The internal coil and other components of outdoorunit must be cleaned regularly. Consult your dealer orservice center.Air filterIt is recommended that the air filter be cleaned when the(Filter) appears on the display.● After Cleaning1. After the air filter is cleaned, reinstall it in its original position.Be sure to reinstall in reverse order.2. Turn off the (Filter) indicator from the screen.Refer to the Instructions attached to the optional TimerRemote Controller or optional High-spec Wired RemoteController.NOTEClean the filter frequently for best performance in the area ofdusty or oil spots regardless of filter status.1. Remove the air filter from the air-intake grille.2. Use a vacuum cleaner to remove light dust. If there is stickydust on the filter, wash the filter in lukewarm, soapy water,rinse it in clean water, and dry it.Ceiling Type (T2)1. Remove 2 attachment screws fixed with the latches.Take hold of the finger-hold on the air-intake grille and pressit to the rear, and the grille will open downward.2. Take hold of the finger-hold on the air filter, pull it towardyou.* Take hold of the finger-hold on the air filter,pull it toward you.Air filter finger-holdAir filter finger-holdAir-intake grilleScrewLatchSlideCAUTION● Certain metal edges and the condenser fins are sharp andmay cause injury if handled improperly; special care shouldbe taken when you clean these parts.● Periodically check the outdoor unit to see if the air outlet orair intake is clogged with dirt or soot.● The internal coil and other components must also becleaned periodically. Consult your dealer or service center.Care: After a prolonged idle periodCheck the indoor and outdoor unit air intakes and outlets forblockage; if there is a blockage, remove it.Care: Before a prolonged idle period● Operate the fan for half a day to dry out the inside.● Disconnect the power supply and also turn off the circuitbreaker.● Clean the air filter and replace it in its original position.● Outdoor unit internal components must be checked andcleaned periodically. Contact your local dealer for thisservice.