18HIGH WALLMaintenance (continued)REPLACEMENT OF AIR PURIFYINGFILTER1 Remove the filter.POWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFEMERGENCYOPERATION2 Remove the air purifying filter.POWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFEMERGENCYOPERATION3 Install a new air purifying filter.POWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFEMERGENCYOPERATION4 Reinstall the air filter and securely close thefront panel.POWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFEMERGENCYOPERATION Air purifying filter• If the air purifying filter is clogged, it may lower theunit’s capacity or cause condensation at air outlet.• The air purifying filter is disposable. The standardusable interval is about 4 mounts. However, if the colorof the filter turns dark brown, replace it at once.CLEANING THE AIR FILTER1 Remove the air filter.Lightly hold the knobs at both sides and lift a littleto remove the filter to this side.POWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFEMERGENCYOPERATION2 Cleaning.If the filter is very dirty, clean it with water (approx.30°C), and dry it thoroughly.3 Reinstall the air filter.POWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFPOWERONOFFEMERGENCYOPERATIONpushpull downpushpull up