14. Room temperature checking button Used to check the room temperature. 15. °C/°F switch button Used to switch temperature reading from Celsius to Fahrenheit. 16. Reset button Used to reset the remote controller. Indoor Unit Operating Instructions Owner.s Manual 9 Forced operation (Tact switch) Forced Operation Auto Restart Function Tips for Filter sign LED Operation procedures when the remote control can't be used. Press the tact switch (Forced operation) for 2 seconds. If you want to stop operation, press again the tact switch. In case the power comes on again after power failure on the Forced Operation mode, the operating conditions are automatically set as follows: During Forced Operation, the initial mode continues. In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. . Filter cleaning indication is automatically cancelled without the separate cancellation after certain period of time. • When filter is covered by dust, it will reduce cooling/heating efficiency and accumulate more electric power. Therefore. Do clean the filter whenever cleaning time is expired. 1. Filter sign lamp (LED) is ON. 2. If LED indicating filter sign lamp is ON, clean the filter. (Signal on does not indicate any error. It.s a mere alarm for cleaning the filter.) 3. After cleaning the filter, Press button repeatedly until the is flashing. When the is flashing, press the to clear. Heat pump Model Cooling Model Room Temp. . set Temp.-2°C Room Temp. < set Temp.-2°C Operating mode Cooling Cooling Heating Indoor FAN Speed High set available set available Setting Temperature 22°C set available set available ENGLISH Maintenance and Service 10 Indoor Unit Benzene SCOURIN CLBARGE SINNER Horizontal louver Vertical louver Air outlet vent Air inlet vent (Inlet grille) Air filters (Behind inlet grille) Maintenance and Service Grille, Case, and Remote Control . Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. Supply power must be disconnected before cleaning the indoor unit. NOTICE 1. Remove the Air filters. ¦ Take hold of the tab and pull slightly forward to remove the filter. CAUTION: When the air filter is to be removed, do not touch the metal parts of the indoor unit. It may cause an injury. 2. Clean dirt from the air filter using a vacuum cleaner or washing with water. ¦ If dirt is conspicuous, wash with a neutral detergent in lukewarm water. ¦ If hot water (50°C or more) is used, it may be deformed. 3. After washing with water, dry well in the shade. ¦ Do not expose the air filter to direct sunlight or heat from a fire when drying it. 4. Install the air filter. Air Filters The air filters behind the front grille should be checked and cleaned once every 2 weeks or more often if neccessary. CAUTION: Before performing any maintenance, turn off the main power to the system. ¦ Never use any of the followings: • Water hotter than 40°C Could cause deformation and/or discoloration. • Volatile substances. Could damage the surfaces of the air conditioner. Maintenance and Service When the air conditioner is not going to be used for a long time. ENGLISH Operation Tips Helpful information The air filters and your electiric bill. If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to operate the air conditioner will be wasted. When it is not going to be used for a long time. When the air conditioner is to be used again. Operate the air conditioner at the following settings for 2 to 3 hours. • Type of operation: Fan operation mode. • This will dry out the internal mechanisms. Turn off the breaker. Turn off the breaker when the air conditioner is not going to be used for a long time. Dirt may collect and may cause a fire. Clean the air filter and install it in the indoor unit. (Refer to page 10 for cleaning it.) Check that the air inlet and outlet of the indoor/outdoor unit are not blocked. Check that the ground wire is connected correctly. It may be connect to the indoor unit side. Do not overcool the room. This is not good for the health and wastes electricity. Keep blinds or curtains closed. Do not let direct sunshine enter the room when the air conditioner is in operation. Keep the room temperature uniform. Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the room. Make sure that the doors and windows are shut tight. Avoid opening doors and windows as much as possible to keep the cool air in the room. Clean the air filter regularly. Blockages in the air filter reduce the airflow and lower cooling and dehumidifying effects. Clean at least once every two weeks. Ventilate the room occasionally. Since windows are kept closed, it is a good idea to open them and ventilate the room now and then. Owner.s Manual 11 Maintenance and Service Before you call for service... ? Check the followi...