Room Air Conditioner OPERATING INSTRUCTIONS Indoor Outdoor Model CS-MK90AKH Model CU-4MK260AKH CS-MK120AKH CS-MK180AKH Before using your air-conditioner, please ENGLISH/ ····························P1 – P32 read this operating instructions carefully and keep it for future reference.
CONTENTS READ BEFORE OPERATION I Safety Precautions ............2 I Names of Parts Indoor unit ............4 Outdoor unit, Remote controller ......5 I Preparation Before Operation Remote controller ..........6 Indoor unit ............7 OPERATION I DRY • COOL • FAN Operation ........8 I POWERFUL Operation ..........
Safety Precautions I Read the following warnings and cautions carefully Failure to follow a warning is very likely before operating the system and use it correctly. WARNING to result in such grave consequences I This manual classifies the precautions to the user as death or serious injury.
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Installation WARNING Do not attempt to install the air conditioner by yourself. Consult the service shop or a qualified technician. Incorrect work will result in water leakage, electric shocks or fire. For installation, consult the service shop where you bought the unit or a qualified technician. CAUTION The air conditioner must be earthed.
Names of Parts Indoor unit Air purifying filter Air inlet Front grille Air purifying filters are attached to the inside of the air filters. Grille tab Diffuser Indicator lamps Air filter Operation lamp (green) Air outlet Louvre (vertical blades) TIMER lamp (yellow) The louvre is inside of the air (See page 10 “Timer outlet.
Names of Parts Air inlet Outdoor unit (Back and side) Refrigerant piping and inter-unit cable Drain hose Air outlet Earth terminal It is inside of this part. Appearance of the outdoor unit may differ with some models. Remote controller Transmitter <CS-MK90/120>...
Preparation Before Operation Operating the remote controller Remote controller • To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and Setting the batteries the remote controller, such as a curtain, the unit will not operate.
Preparation Before Operation Indoor unit I Setting the air purifying filters I Setting the clock CLOCK Press Open the front grille. • Hold the grille by the tabs on the two sides and lift it until it stops with a click. (about 60°) is displayed.
DRY • COOL• FAN Operation I To change the air flow direction: The air conditioner operates with the settings of your choice. (See page 9.) From the next time on, the air conditioner will operate Notes on DRY mode operation with the same settings.
Adjusting the Air Flow Direction You can adjust the air flow direction to increase your Adjusting the louvre comfort. <CS-MK90/120> Adjusting the horizontal blade (flap) SWING Press • Every time the button is pressed, “ ” appears or disappears..The flap automatically swings up and down.
Timer Operation I To cancel the timer: Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning. CANCEL You can also use OFF TIMER and ON TIMER in Press combination. Then the TIMER lamp goes off OFF TIMER operation Combining ON TIMER and OFF TIMER •...
Care and Cleaning Cleaning the indoor and outdoor CAUTION units and the remote controller Before cleaning, be sure to stop the operation and • turn the breaker OFF. Wipe them with dry soft cloth. For cleaning, do not use water hotter than 40°C, benzine, gasoline, thinner, nor other volatile oils, polishing compound, Cleaning the air filters scrubbing brushes nor other hard stuff.
Care and Cleaning Check Cleaning the front grille Check that the base, stand and other You may remove the front grille for cleaning. fittings of the outdoor unit are not decayed or corroded. CAUTION • Check that nothing blocks the air inlets When removing or attaching the front grille, use a robust and stable stool and watch your steps carefully.
Trouble Shooting These cases are not troubles. The following cases are not air conditioner troubles but have some reasons. You may just continue using it. Case Explanation Operation does not start soon. This is to protect the air conditioner. When ON/OFF button You should wait for about 3 minutes.
Trouble Shooting Check again Please check again before calling a repair person. Case Check The air conditioner does not Hasn’t a breaker turned OFF or a fuse blown? operate. Isn’t it a power failure? (OPERATION lamp is off) Are batteries set in the remote controller? Is the address switch in the remote controller set correctly? (See page 6 “Preparation Before Operation”.)
Trouble Shooting Call the service shop immediately. WARNING I When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF. Continued operation in an abnormal condition may result in troubles, electric shocks or fire. Consult the service shop where you bought the air conditioner. I Do not attempt to repair or modify the air conditioner by yourself.