User manual MITSUBISHI MSZ-A09NA

[. . . ] (Safety and performance function CONTENTS SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 NAME OF EACH PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 PREPARATION BEFORE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AUTO OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Operation mode COOL 75 °F Medium Auto HEAT 75 °F Medium Auto Dry-cell batteries Reference for replacing batteries When the indoor unit does not respond to the signal from the remote controller, or the display becomes dim, replace the batteries with new ones (size AAA). Though both alkaline batteries and manganese batteries can be used, alkaline batteries are recommended because their service life is longer than that of manganese batteries. However, a battery which the time limit is approaching may be exhausted soon. The recommended usable time limit is indicated (month/year) on the bottom of the battery. To prevent liquid leakage, take out all batteries when the remote controller is not going to be used for a long time. Dispose of exhausted batteries in the correct manner. Set temperature Fan speed Horizontal vane · · · · · · The operation mode is indicated by the Operation Indicator lamp on the indoor unit as following figures. Operation Indicator lamp MSZ-A09NA EMERGENCY COOL EMERGENCY HEAT STOP Operation Indicator Operation Indicator Operation Indicator STOP Operation Indicator MSZ12UN EMERGENCY COOL EMERGENCY HEAT Operation Indicator Operation Indicator I To stop the emergency operation, press the EMERGENCY OPERATION switch once (in case of EMERGENCY HEAT MODE) or twice (in case of EMERGENCY COOL MODE). I FEEL. . . AUTO OPERATION · With the " (I FEEL. . . )" auto operation mode, the optimum room condition can be set automatically with a one-touch operation. I · To start operation: ON/OFF Press the button. When the " (I FEEL. . . )" mode is selected, the air conditioner is automatically controlled at the optimum temperature. ON/OFF °C CLOCK AMPM I To stop operation: Press the button. AMPM · If you feel slightly warm: TOO WARM TOO ON/OFF WARM TOO COOL I · Press the ture. button to lower the tempera- One press lowers the temperature by about 2 °F. If you feel slightly cool: Press the ture. TOO COOL FAN I FEEL COOL STOP START HR. MIN. I button to raise the tempera- VANE HEAT DRY One press raises the temperature by about 2 °F. MODE When " (I FEEL. . . )" is not selected, press MODE button until it is set. the Each time the button is pressed, the operation mode is changed in sequence: (I FEEL. . . ) (COOL) (DRY) (HEAT) FAN I FEEL COOL RESET CLOCK STOP START HR. This shows that the room temperature is approaching the target temperature. Difference between target temperature and room temperature About 4 °F or more Difference between target temperature and room temperature About 4 °F or more About 4 °F or less About 4 °F or less Description of "AUTO RESTART FUNCTION" I These units are equipped with an auto restart function. creases by 1 hour; each time the button is pressed, the set time increases by 10 minutes. To release the OFF timer: RESET CLOCK I Press the STOP button. Programming timer operation The ON timer and the OFF timer can be used in combination. (" " mark indicates the order of timer operations. ) I If the current time has not been set, the timer operation cannot be used. NOTE If the main power is turned off or a power failure occurs while AUTO START/STOP timer is active, the timer setting is cancelled. As these models are equipped with an auto restart function, the air conditioner should start operating at the same time that power is restored. 10 WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME When it is not going to be used for a long time: When the air conditioner is to be used again: 1 Perform the FAN operation for 3 or 4 hours to dry the inside of the air conditioner. · To perform FAN operation, set the remote controller to the highest temperature in the MANUAL COOL mode. (Refer to page 8. ) 1 Clean the air filter and install it in the indoor unit. (Refer to page 11 for cleaning instructions. ) ool" al "C Manu tion opera Clean the filter before installing. 2 Turn off the breaker. 2 Check that the air inlet and outlet of the indoor/outdoor units are not blocked. CAUTION Turn off the breaker when the air conditioner is not going to be used for a long time. Dirt may collect and this may cause a fire. 3 Remove the batteries from the remote controller. 3 Check that the ground is connected correctly. CAUTION Ground the unit. Do not connect the ground to a gas pipe, water pipe, lightning rod or the ground of a telephone. If the grounding is incorrect, it may cause an electric shock. CAUTION To prevent liquid leakage, take out all batteries when the remote controller is not going to be used for a long time. MAINTENANCE Before starting maintenance Cleaning the indoor unit I Turn off the breaker. I Clean the unit using a soft dry cloth. CAUTION When the unit is to be cleaned, switch it off and turn off the breaker. Since the fan rotates at high speed during operation, it may cause an injury. Do not use gasoline, benzine, polishing powder, detergent and insecticide. The unit may be damaged. CLEANING THE AIR FILTER AND THE DEODORIZING FILTER (OPTION) Do not open the front panel up past the level position in order to prevent it from being damaged. Cleaning the air filter (about once every 2 weeks) Cleaning the deodorizing filter (about once every 2 weeks) 1 Remove the air filter. Open the front panel, then remove/replace the filter. Air filter Remove. 1 Remove the air filter, and then remove the deodorizing filter (Gray sponge type). I The deodorizing filter is harmless to people. [. . . ] I When the outside air temperature is high, the cooling effect may not be sufficient. LE HAS OCCURRED Question Answer (not a malfunction) Mechanical sound is heard from the indoor unit. I This is the switching sound in turning on/off the fan or the compressor. The air flow direction changes during operation. I When the air conditioner is operated in COOL or DRY mode, if the operation continues with air blowing down for 1 hour, the direction of the air flow is automatically set to horizontal to prevent condensed water from dropping. I In the heating operation, if the air flow temperature is too low or when defrosting is being done, the horizontal vane position is automatically set to horizontal. I During COOL and DRY operations, pipe or pipe connecting sections are cooled and this causes water to condense. I In the heating operation, the defrosting operation makes water frozen on the outdoor unit melt and drip down. [. . . ]