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Mitsubishi Electric MUZ-GA25VA air conditioner

1. Catechin air filter Air outlet Remote controller Display section OPERATION INDICATOR Operation Indicator lamp Operation section When the front panel is opened CO O G INVERTER Outdoor unit Emergency operation switch MUZ GA25 35VA MUZ GB50VA Airinlet back and side Airinlet back and side A H Piping Air outlet Piping Air outlet Drain outlet Drain outlet NAME OF EACH PART Signal transmitting section 2 MITSUBISHI ELECTRIC Operation display section ON OFF operate stop button TOO 15 100 ON OFF warm cooL Temperature buttons Open the front lid This diagram shows an overall view TOO TOO WARM COOL ON OFF Fan speed control button Neos Off timer button On timer button TIME set buttons Forward button Backward button CLOCK set button Vane control button Operation select button p ECONO COOL button PREPARATION BEFORE OPERATION Auto restart function H These models are eguipped with an auto restart function If you do not want to use this function please consult the service representative because t
2. Mist is discharged from the air outlet of the indoor unit e The cool air from the air conditioner rapidly cools moisture in the air inside the room and it turns into mist Mechanical sound is heard from the indoor unit e This is the switching sound in turning on off the fan or the compressor In a multi unit system the indoor unit which is not operating becomes warm and a sound similar to water flowing is heard from the unit e A small amount of refrigerant continues to flow into the indoor unit even though it is not operating The swing operation of the HORIZONTAL VANE is suspended for about 15 seconds then restarted e This is for the swing operation of the HORIZONTAL VANE to be performed normally The air conditioner starts the operation only with the main power turned on though you do not operate the unit with the remote controller e These models are equipped with an auto restart function When the main power is turned off without stopping the air conditioner with the remote controller and is turned on again the air conditioner will start operation automatically in the same mode as the one set with the remote controller just before the shutoff of the main power INSTALLATION RELOCATION AND INSPECTION The installation location of the outdoor unit should be at least 3 m away from the antennas for TV sets radios etc In areas where the reception is weak pro
3. SWING OPERATION Use the swing operation for the air flow to reach all corners of the room COOL DRY AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT Movement of the horizontal vane HEAT N Horizontal position e The vane automatically moves to horizontal position It will not swing NOTE Air blows out upper than position 1 e To constantly change the air flow direction select SWING with the a button At the start of heating enon gt When air Horizontal position becomes warm Very small air flow Position 4 Immediately after the air conditioner starts operating the vane stays at horizontal position Once the air from the indoor unit becomes sufficiently warm the vane moves to position 4 Once the air conditioner starts operating the fan speed increases gradually as the air from the indoor unit gets warmer and continues until the set speed SA After around 0 5 to 1 hour Position 1 When the air flow direction is set to position 2 3 or 4 e After around one hour of operation the air conditioner automatically moves the vane to position 1 To change the air flow direction to the original setting operate the VANE button on the remote controller again e The vane does not move to the straight down position in the COOL and DRY mode At the start of heating operation Horizontal position Very small air
4. 12 BEFORE CONTACTING THE SERVICE REPRESENTATIVE CHECK THE FOLLOWING AGAIN 0 cette 13 WHEN YOU THINK THAT TROUBLE HAS OCCURRED INSTALLATION RELOCATION AND INSPECTION w csscsccaseasssccscaccscccacsssetesassnnstatesvesssccusnsnsscacssseveveetauasetiwssseaseveccasticccecstvies SAFETY PRECAUTIONS Since rotating parts and parts which could cause an electric shock are used in this product be sure to read these Safety Precautions before use Since the cautionary items shown here are important for safety be sure to observe them Marks and their meanings N WARNING Incorrect handling could cause a serious hazard such as death serious injury etc with a high probability N CAUTION Incorrect handling could cause a serious hazard depending on the conditions Meanings of symbols used in this manual The colour of the sticker affixed to the unit is written in the parentheses Be sure not to do Q Be sure to follow the instruction E Black Black Never insert your finger or stick etc Never step onto the indoor outdoor unit and do not put anything on them N Danger of electric shock Be careful Be sure to disconnect the power supply plug from the power outlet Be sure to shut off the power After reading this manual keep it together with the installation manual in a handy place for easy reference Warning mark positions FRONT PANEL
5. Press the Forward and lt Back ward buttons TIME SET buttons to set the current time MODE FAN OSTOP Jo ECONO COOL VANE O START TIME RESET CLOCK E o 0 e Each time the gt button is pressed the set time increases by 1 minute and each time the lt button is pressed the set time decreases by 1 minute e Pressing those buttons longer increases decreases the set time by 10 minutes Press the CLOCK set button again and close the front lid Handling of the remote controller The range that the signal can reach is about 6 m when the remote controller is pointed at the front of the indoor unit When a button is pressed one or two beeps will be heard from the indoor unit If no sound is heard operate again Use the remote controller carefully If it is dropped thrown or it gets wet the remote controller may not operate When installing on a wall etc Install the remote controller holder in a position where the signal reception sound beep can be heard from the indoor unit when the r button is pressed How to install remove the remote controller Installing lnsert the remote controller downward Removing Pull it up Remote controller holder Dry cell batteries m Reference for replacing batteries Replace the batteries with new AAA alkaline batteries in the following cases When the indoor unit does not
6. QUICK CLEAN KIT e Do not use gasoline benzine and polishing powder e Do not use excessive force to the fan Otherwise it may be cracked Put the vertical vanes back to their original positions one by one Hold the tab of each vertical vane and insert the Push each vertical vane until it clicks into place vertical vanes into their respective grooves e Be sure to hold the tabs to install the vertical vanes otherwise the vanes can be damaged e Do not use excessive force to the fan guard during this procedure The fan guard may be deformed and the vanes may not work properly e Put the vertical vanes back correctly to their original positions Otherwise condensed water may drip down from the indoor unit or the horizontal vane could malfunction Install the horizontal vanes Reverse the removal procedures AKON awat wns em Insert this end first In procedure lock the stoppers until they click into place After Cleaning Insert the power supply plug into the power outlet and or turn on the breaker Check that all LED lamps are not blinking If they are blinking the horizontal vane is not installed correctly In this case disconnect the power supply plug and or turn off the breaker and then reinstall the horizontal vane by following the procedures in step IJ e If you operate the air conditioner after cleaning the air outlet and fan do not get close to the air
7. be installed humid places etc If the earth leakage breaker is not installed it may cause an electric shock Inspection and maintenance e When the air conditioner is used for several seasons the capacity may be lowered due to dirt inside the unit e Depending on the condition an odor may be generated or dehumidified water may not drain out smoothly due to dirt dust etc e Itis recommended that the unit be inspected and maintained charged by specialist in addition to normal maintenance Consult your dealer Operating sound considerations e Do not put an object around the air outlet of the outdoor unit This may lower the capacity or increase the volume of the operating sound e f an abnormal sound is heard during operation consult your dealer Relocation e When the air conditioner is to be removed or re installed because of rebuilding moving etc special techniques and work are reguired N WARNING Repairs or relocation should not be done by the customer If this is done incorrectly it may cause a fire an electric shock or an injury from the unit falling water leaking etc Consult your dealer To dispose of this product consult your dealer If you have any guestions consult your dealer a MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODAKU TOKYO 100 8310 JAPAN SG79Y404H03
8. into contact with the fire of a fan heater space heater stove etc harmful substances will be generated Electrical work e Provide an exclusive circuit for the power supply of the air conditioner e Be sure to observe the breaker capacity N WARNING The customer should not install this unit If installation is done incorrectly it may cause a fire an electric shock or injury from the unit falling water leaking etc Do not use intermediate connection of the power supply cord or the extension cord and do not connect many devices to one AC outlet A fire or an electric shock may result from poor contact poor insulation exceeding the permissible current etc Consult your dealer Guaranteed operating range MSZ GA22 25 35VA MSZ GB50VA Indoor Outdoor Indoor Outdoor PI 32 C DB 46 C DB 32 C DB 43 C DB Upper limit 23 C WB 23 C WB N Cooling MUN 21 C DB 10 C DB 21 C DB 10 C DB Lower limit 15 C WB 15 C WB E o 27 C DB 24 C DB 27 C DB 24 C DB Upper limit 18 C WB 18 C WB Heating N 20 C DB 10 C DB 20 C DB 10 C DB Lower limit 11 C WB 11 C WB AN CAUTION Earth the unit Do not connect the earth to a gas pipe water pipe lightning rod or the earth of a telephone If the earthing is incorrect it may cause an electric shock Install an earth leakage breaker depending on the place where the air conditioner is to
9. is cancelled As these models are equipped with an auto restart function the air conditioner starts operating with timer cancelled at the same time that power is restored 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 Perform the FAN operation for 3 or 4 hours to dry the inside of the air conditioner e To perform FAN operation set the remote controller to the highest temperature in the MANUAL COOL mode Refer to page 7 Turn off the breaker and or disconnect the power supply plug D O PV N CAUTION Turn off the breaker or disconnect the power supply plug when the air conditioner is not going to be used for a long time Dirt may collect and this may cause a fire Remove the batteries from the remote controller ZN CAUTION To prevent liguid leakage take out all batteries when the remote controller is not going to be used for a long time MAINTENANCE Clean the air filter and install it in the indoor unit Refer to page 10 for cleaning instructions Check that the air inlet and outlet of the indoor outdoor units are not blocked with any obstacles Check that the earth is connected correctly N CAUTION Earth the unit Do not connect the earth to a gas pipe water pipe lightning rod or the earth of a telephone If the earthing is incorrect it may cause an electric
10. vide greater space between the outdoor unit and the antenna of the affected device if operation of the air conditioner interferes with radio or TV reception wall etc Installation place Avoid installing the air conditioner in the following places Inverter type fluorescent lamp To prevent the effects of a fluorescent lamp keep as far apart as e Where flammable gas could leak possible SU Well AN CAUTION E 777 sype Do not install the unit where flammable gas could leak ee distortion or the noise If gas leaks and collects around the unit it may cause an explosion Sr more e Where there is much machine oil e Salty places such as the seaside e Where sulfide gas is generated such as a hot spring e Where oil is splashed or where the area is filled with 100 mm or more im or more Cordless phone or Portable phone Radio 0 Ja gt 77 oily smoke Xs e Where there is high frequency or wireless equipment N WARNING If the air conditioner operates but does not cool or heat depending on model the room consult your dealer since there may be a refrigerant leak Be sure to ask the service representative whether there is refrigerant leakage or not when repairs are carried out The refrigerant charged in the air conditioner is safe Refrigerant normally does not leak however if refrigerant gas leaks indoors and comes
11. CY OPERATION switch is once pressed the unit will operate in test run for 30 minutes and then the operation mode shifts to EMERGENCY MODE Details of EMERGENCY MODE are as shown below However the temperature control does not work for 30 minutes in test run and the unit is set to continuous operation The fan speed is set to High in test run and shifts to Medium after 30 minutes Operation mode COOL HEAT Set temperature 24 C 24 C Fan speed Medium Medium Horizontal vane Auto Auto The operation mode is indicated by the Operation Indicator lamp on the indoor unit as following figure Operation Indicator lamp EMERGENCY COOL gt vis EMERGENCY HEAT e T STOP E E 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 AUTO CHANGEOVER AUTO MODE OPERATION An automatic cooling and heating changeover operation system ensures easy control and year round air conditioning Once the desired temperature is set unit operation is switched automatically between cooling and heating according to the room temperature In addition fan control of the outdoor unit enables cooling operation at outside temperature as low as 10 C To select the AUTO mode Press the button N MI a MITSUBISHI ELECTRIC MODE Select the AUTO mode by pressing the button Each time t
12. ENCLOSURE AIR OUTLET ENCLOSURE AO e This air conditioner is NOT intended for use by children or infirm persons without supervisions A WARNING Do not use intermediate connection of the power supply cord or the extension cord and do not connect many devices to one AC outlet e A fire or an electric shock may result from poor contact poor insulation exceeding the permissible current etc Do not scratch or process the power supply cord etc e Do not put heavy object on the power supply cord and do not scratch or process the cord The cord may be damaged and this may cause a fire or an electric shock Do not turn the breaker off on or disconnect connect the power supply plug during operation e This may cause a fire due to spark etc e Be sure to turn off the breaker or disconnect the power supply plug absolutely after switching the indoor unit off with the remote controller Do not expose your skin directly to cool air for a long time e This could damage your health The customer should not install this unit e If this is done incorrectly it may cause a fire an electric shock or injury from the unit falling water leaking etc Consult your dealer Do not insert your finger or a stick etc into the air inlet outlet e Since the fan rotates at high speed this may cause an injury e Young children should be supervised to ensure that they do not play with the air conditioner When an abnormality bu
13. MITSUBISHI ELECTRIC SPLIT TYPE AIR CONDITIONERS OPERATING INSTRUCTIONS INDOOR UNIT MSZ GA22VA MSZ GA25VA MSZ GA35VA MSZ GB50VA For customers Thank you very much for purchasing this Mitsubishi room air conditioner e To use this unit correctly and safely be sure to read this operating instructions before use Keep this manual carefully for later reference e Be sure to receive a guarantee card from your dealer and check that the purchased data and shop name etc are entered correctly e This air conditioner should not be installed by the customer Safety and performance functions cannot be assured CONTENTS SAFETY PRECAUTIONS NAME OF EACH PART at PREPARATION BEFORE OPERATION ciclo holla sanana tammaa aaa eee NI Zr AUTO CHANGEOVER AUTO MODE OPERATION N MANUAL OPERATION COOL DRY HEAT 1iiiiiiisisismsnssiena saa AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT ECONO COOL OPERATION ooooiiiiiiiit nesteen TIMER OPERATION ON OFF TIMER svi n snas iiiaio paas iiiaae WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME MAINTENANCE iait oS tivo trika a v CLEANING THE FRONT PANEL HEAT EXCHANGER AND FAN 10 CLEANING THE CATECHIN AIR FILTER 0 eect 10 CLEANING THE AIR CLEANING FILTER 11 REPLACEMENT OF THE AIR CLEANING FILTER ali CLEANING THE AIR OUTLET AND FAN OF THE INDOOR UNIT sisirin soiien n a ana ana aarne a annet
14. TION COOL DRY HEAT To select the COOL DRY or HEAT mode Press the button a MITSUBISHI ELECTRIC MODE Select the operation mode by pressing the button Each time this button is pressed the operation mode is changed in seguence 3 AUTO g COOL A DRY HEAT To stop operation ONOFF MODE FAN STOP M Press the button s After the operation mode is set once the operation starts in the same mode as ECONO COOL VANE OSTART the one set previously from the next time by simply pressing the button 2 Ce ONOFF Warm COOL TIME Ea RESET CLOCK oy io 9 090090090000000000000000000000000000000000000000000000 E When the set temperature is to be changed we e Press the button to lower the temperature One press lowers the temperature by about 1 C 58 e Press the A button to raise the temperature One press raises the temperature by about 1 C In COOL operation e When the outside temperature is low the fan of the outdoor unit turns on and off frequently or decreases the rotation speed to maintain sufficient cooling capacity In DRY operation e The temperature control temperature setting cannot be done e The room temperature is slightly lowered in this operation mode E The details of the display on the indoor unit are explained on page 6 If the air conditioner doesn t cool or
15. acement about once every year Remove the catechin air filter left one The air cleaning filter is not attached to the right side catechin air filter 7 Catechin air filter N Pull up the tabs on both sides of the air cleaning filter with your finger and remove the air cleaning filter blue bellows type from the catechin air filter Catechin air filter Back side Attach a new air cleaning filter to the catechin air filter so that all 8 tabs on the catechin air filter are securely installed W n Install the catechin air filter Securely install its tabs Securely close the front panel Air cleaning filter e Ifthe air cleaning filter is clogged it may lower the units capacity or cause condensation at the air outlet e The air cleaning filter is disposable The standard usable term is about 1 year Optional parts Optional parts are available from your local dealer AIR CLEANING FILTER Name of parts Anti Allergy Enzyme Filter Parts number MAC 415FT E This optional part is for the replacement of the left side filter only No optional part is available for the right side filter CLEANING THE AIR OUTLET AND FAN OF THE INDOOR UNIT Before cleaning Switch the indoor unit off with the remote A controller and disconnect the power supply plug and or turn off the breaker otherwise you Q may get injured since the fan of the indoor unit rotate
16. d in the memory When the main power is turned on the unit decides the operation mode by the initial room temperature at restart and starts operation again Information for multi system air conditioner Multi system air conditioner can connect two or more indoor units with one outdoor unit According to the capacity two or more units can operate simultaneously e When you try to operate two or more indoor units with one outdoor unit simultaneously one for the cooling and the other for heating the operation mode of the indoor unit that operates earlier is selected The other indoor units that will start the operation later cannot operate indicating an operation state Refer to the table of Operation Indicator lamp below In this case please set all the indoor units to the same operation mode e When indoor unit starts the operation while the defrosting of outdoor unit is being done it takes a few minutes max 10 minutes to blow out the warm air e Inthe heating operation the indoor unit that does not operate may get warm or the sound of refrigerant flowing may be Description of AUTO CHANGEOVER 1 Initial mode When unit starts the operation with AUTO operation from off e If the room temperature is higher than the set temperature operation starts in COOL mode e If the room temperature is equal to or lower than the set temperature operation starts in HEAT mode 2 Mode change COOL mode changes to HEAT mo
17. de when about 15 minutes have passed with the room temperature 2 degrees below the set temperature 2 HEAT mode changes to COOL mode when about 15 minutes have passed with the room temperature 2 degrees above the set temperature NOTE If two or more indoor units are operating in multi system there might be a case that the indoor unit which is operating in 3 AUTO cannot change over to the other operating mode COOL gt HEAT and becomes a state of standby Refer to the detailed information for multi system air conditioner explained on the right heard This is not a malfunction since the refrigerant continuously flows into the indoor unit that does not operate Details of display on the indoor unit The operation indicator at the right side of the indoor unit indicates the operation state Lighted Operation Indicator O x Blinking o Notlighted Operation indicator lamp Difference between target Indication Operation state temperature and room temperature m 7 This shows that the air conditioner is operating to reach the a target temperature Please wait until the target temperature About 2 C or more is obtained This shows that the room temperature is approaching the e O target temperature About 2 C or less This shows a state of standby for operation Please refer to Information for multi system air conditioner above MANUAL OPERA
18. e timer when you go to bed when you get home when you get up etc How to set the ON timer How to set the OFF timer Press the oo button during operation Each time the button is pressed the ON timer mode alternates between ON and OFF Press the cea button during operation Each time the button is pressed the OFF timer mode alternates between ON and OFF Set the time of the timer using the TIME Set the time of the timer using the TIME buttons gt Forward and lt Backward buttons gt Forward and lt Backward Each time the gt button is pressed the set time Each time the gt button is pressed the set time increases by 10 minutes each time the gt button is increases by 10 minutes each time the 3 button is pressed the set time decreases by 10 minutes pressed the set time decreases by 10 minutes To release the ON timer To release the OFF timer O START E Press the 9 1 button E Press the button Programming timer operation The ON timer and the OFF timer can be used in combination The timer of the set time that is reached first will operate first CN mark indicates the order of timer operations e 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
19. flow is finally reached m When air becomes warm Set position Immediately after the air conditioner starts operating the vane stays at horizontal position Once the air from the indoor unit becomes sufficiently warm the vane moves to the position corresponding to the set direction of air flow Once the air conditioner starts operating the fan speed increases gradually as the air from the indoor unit gets warmer and continues until the set speed is finally reached e The vane moves intermittently between positions 1 and 4 The vane stops for a brief period at positions The vane moves intermittently between positions 2 and 4 The vane stops for a brief period at positions 2 and 4 EI To change the horizontal direction of the air flow move the vertical vane manually Adjust the vane before operation starts Since the horizontal vane moves automatically your fingers may be caught To change the air flow direction not to blow directly onto your body To change the air fat flow direction When to use this function COOL DRY HEAT Pressing and holding Use this function if you don t the YAE button for 2 want the air from the indoor a M unit to blow directly onto your seconds or more body causes the horizontal e Depending on the shape of vane to reverse and the room the air may blow move to horizontal directly onto your body position VANE w
20. he setting of the unit needs to be changed Auto restart function is When the indoor unit is controlled with the remote controller the operation mode the set temperature and the fan speed are stored in the memory If a power failure occurs or the main power is turned off during operation Auto restart function sets automatically to start operating in the same mode as the one set with the remote controller just before the shutoff of the main power Refer to page 6 for details Outdoor unit E Insert the power supply plug into the power outlet and or turn the breaker on N WARNING Remove dirt from the power supply plug and insert the plug securely If dirt adheres to the plug or insertion is incomplete it may cause a fire or an electric shock Remote controller EI Use the remote controller provided with the unit only Do not use other remote controller PREPARATION BEFORE OPERATION Remote controller How to set the batteries and the current time Remove the front lid and insert batteries Then reattach the front lid Insert the minus pole of the batteries first Check if the polarity of the batteries is correct Insert the minus pole of the batteries first Press using a thin stick e If the RESET button is not pressed the remote controller may not operate correctly e Be sure to press the RESET button not too strongly Press the CLOCK set button Press using a 4 thin stick
21. heat effectively If the fan speed is set to Low or AUTO sometimes the air conditioner may not cool or heat the air effectively In this case change the fan speed to Med or upper Change the fan speed gt Fan speed Low or AUTO Fan speed Med or upper AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT AIR FLOW velocity and direction can be selected as required E To change the AIR FLOW velocity press the lt a button Each time the button is pressed the fan speed is changed in sequence a LOW gt aa Med gt ad High gt aal Super High gt AUTO e Use the agi Super High notch to cool heat the room more efficiently e Ifthe operating sound of the air conditioner disturbs your sleep use the Low notch pan ate MITSUBISHI ELECTRIC TOO 100 ON OFF waka cot O 06 EH To change the AIR FLOW blowing direction vertically press the VANE button Each time the button is pressed the angle of the horizontal vane is changed in MODE EAN BEN sequence 1 gt 2 gt 3 gt 4 gt x SWING gt R AUTO gt 0 ECONOCOOL VANE O START C a e TIME lt Recommended horizontal vane range for more efficient air conditioning RESET CLOCK ETY Use the AUTO position usually Use position 1 in the COOL or DRY mode and use positions 2 to 4 in the HEAT mode when DRY adjusting to your requirements
22. hes wash it well with clean water e f liquid from the batteries gets into your eyes wash them well with clean water and consult a doctor at once Ventilate well in using the unit with a stove etc e An oxygen shortage may occur Do not operate switches with wet hands e This may cause an electric shock Do not clean the air conditioner with water e Water may enter the unit and degrade the insulation This may cause an electric shock Do not step or put anything on the indoor outdoor unit e This may cause an injury etc if you or something falls down Z WARNING A CAUTION Do not install the unit where flammable gas could leak e If gas leaks and collects around the unit it may cause an explosion Earth the unit e Do not connect the earth to a gas pipe water pipe lightning rod or the earth of a telephone If the earthing is incorrect it may cause an electric shock Install an earth leakage breaker depending on the place where the air conditioner is to be installed humid places etc e If the earth leakage breaker is not installed it may cause an electric shock Drain should be fully drained e Ifthe drainage route is incomplete water may drop from the unit This may wet and damage the furniture NAME OF EACH PART Heat exchanger Air cleaning filter Anti Allergy Enzyme Filter Blue bellows type
23. his button is pressed the operation mode is changed in seguence I AUTO gt 23 COOL gt DRY gt HEAT The set temperature is also displayed on the remote controller ONOFF vati D COOL O00 MODE FAN STOP To stop operation Cs 0 gt 0 ECONO COOL VANE O START ONOFF EH Press the button After the operation mode is set once the operation starts in the same mode as TNE the one set previously from the next time by simply pressing the button RESET CLOCK le ia E When the set temperature is to be changed 100 ARM e Press the button to lower the temperature One press lowers the temperature by about 1 C ress the J utton to raise the temperature One press raises the temperature about 1 C P the G button t the temperature One p the temperature by about 1 C Description of AUTO RESTART FUNCTION e These units are equipped with an auto restart function When the main power is turned on the air conditioner will start operation automatically in the same mode as the one set with the remote controller before the shutoff of the main power e If the unit was set to off with the remote controller before the shutoff of the main power it will remain stopped even after the main power is turned on e If the unit is operated in g AUTO mode before power failure the operation mode COOL DRY or HEAT is not store
24. il Horizontal position Pressthe a button again to return the vane to the previously set position NOTE e f you make the air flow not to blow directly onto your body by pressing Cal even during the operation of the air conditioner The air conditioner starts the cooling or drying operation approx 3 minutes after the vane has moved to the horizontal position e When the button is pressed again the vane returns to the previouslyset position and the air conditioner starts the cooling or drying operation in approx 3 minutes VANE The air conditioner starts heat ing operation approx 3 min utes after the vane has moved to the horizontal position e Sometimes the area around your feet may not warm To warn the area around the feet set the horizontal vane to AUTO or the down ward blowing position When the button is pressed again the vane returns to the previously set position and the air condi tioner starts heating opera tion in approx 3 minutes button the compressor stops for 3 minutes e The air conditioner operates with decreased air flow until the compressor turns on again 1 and 4 SSN NOTE Adjust the vertical AIR FLOW direction using the remote controller Moving the horizontal vane manually can cause trouble When the operation mode changes in 3 AUTO mode the horizontal vane is automatically changed t
25. mells strange The air conditioner may suck in an odor adhering to the wall carpet furniture cloth etc and blow it out with the air The fan of the outdoor unit does not rotate even though the compressor is running Even if the fan starts to rotate it stops soon When the outside temperature is low the fan may not operate to maintain sufficient cooling capacity The sound of water flowing is heard This is the sound of refrigerant flowing inside the air conditioner This is the sound of condensed water flowing in the heat exchanger This is the sound of the heat exchanger defrosting The sound as burbling is heard This sound is heard when the outside air is absorbed from the drain hose in turning on the range hood or the ventilation fan and that makes water flowing in the drain hose spout out This sound is also heard when the outside air blows into the drain hose in case the outside wind is strong The air flow direction changes during operation The direction of the horizontal vane cannot be adjusted with the remote controller 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 position 1 to prevent condensed water from dropping In the heating operation if the air flow temperature is too low or when defrosting is being done the horizontal vane position is automatically
26. midity e g leaving a door or window open e Inthe cooling mode if the unit is operated in a room with high humidity 80 RH or more for a long time water condensed in the air conditioner may drop and wet or damage furniture etc Do not operate the unit at low outside temperature less than 10 C in the cooling mode e Inthe cooling mode if the unit is operated at low outside temperature less than 10 C water condensed in the air conditioner may drop and wet or damage furniture etc SAFETY PRECAUTIONS A CAUTION Do not use the unit for special purposes e Do not use this air conditioner to preserve precision devices food animals plants and art objects This may cause deterioration of quality etc Do not put a stove etc where they are exposed to direct airflow e This may cause imperfect combustion When the unit is to be cleaned switch it off and disconnect the power supply plug or turn off the breaker e Since the fan rotates at high speed during operation this may cause an injury When the unit is not going to be used for a long time disconnect the power supply plug or turn off the breaker e Otherwise dirt may collect and this may cause a fire Replace the 2 batteries with new ones of same type e Using an old battery together with a new one may result in heat generation leakage or an explosion If liquid from the batteries gets onto your skin or clot
27. o the position in each mode ECONO COOL OPERATION Use this operation when you want to be comfortable in COOL mode even with energy saved a Perform the following operations while the unit is operating ANNE in the MANUAL COOL mode ate MITSUBISHI ELECTRIC ECONO COOL E Press the button When the gs ECONO COOL operation is selected in COOL mode the air conditioner performs swing operation vertically in various cycle according to the temperature of air conditioner Also SET TEMPERATURE is automatically set 2 C higher than in COOL mode ONOFF viru CD COOL OO0 To release the ECONO COOL operation ECONO COOL E Press the button again MODE FAN OSTOP 00 ECONO COOL VANE OSTAR 900000 0000000000000 0000000000000 z VANE o gt e When the lt button is pressed or the operation mode is changed during the ECONO COOL operation ECONO COOL operation is released TIME T00 700 lt The a button the M or A button and ON OFF timer explained below s RESET CLOCK o o are available What is ECONO COOL Swing air flow change of air flow makes you feel cooler than constant air flow So even though the set temperature is automatically set 2 C higher it is possible to perform cooling operation with keeping comfort As a result energy can be saved TIMER OPERATION ON OFF TIMER It is convenient to set th
28. outlet as any remaining dirt may be discharged BEFORE CONTACTINGTHE SERVICE REPRE SENTATIVE CHECK THE FOLLOWING AGAIN Question Check points The air conditioner cannot be operated Is the breaker turned on Is the fuse blown Is the ON timer set Page 9 All LED lamps on the indoor unit are blinking Is the horizontal vane attached to the indoor unit correctly Page 12 The horizontal vane does not move Are the horizontal vane and the vertical vane attached to the indoor unit correctly Page 12 Is the fan guard deformed The room cannot be cooled or heated sufficiently Is the temperature setting correct Page 7 Is the filter clean Page 10 Is the fan of the indoor unit clean Page 12 Are there any obstacles blocking the air inlet or outlet of the indoor or outdoor unit Is a window or door open The air from the indoor unit smells strange Is the filter clean Page 10 Is the fan of the indoor unit clean Page 10 The display on the remote controller does not appear or it is dim The indoor unit does not respond to the remote control signal Are the batteries exhausted Page 5 Is the polarity of the batteries correct Page 5 Are any buttons on the remote controller of other electric appliances being pressed When a power failure occurs Does the air conditioner start operating again If the air conditioner had operated before the power failure as
29. respond to the remote control signal When the display on the remote controller becomes dim When a button of the remote controller is pressed all displays appear on the screen and then disappear immediately Do not use manganese batteries The remote controller could malfunction The service life of an alkaline battery is about 1 year However a battery whose 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 liguid leakage take out all batteries when the remote controller is not going to be used for a long time AN CAUTION If liguid from the batteries gets onto your skin or clothes wash it well with clean water If liquid from the batteries gets into your eyes wash them well with clean water and consult a doctor at once Do not use rechargeable batteries Replace the 2 batteries with new ones of the same type Dispose of exhausted batteries in the correct manner When the remote controller cannot be used emergency operation When the batteries of the remote controller run out or the remote controller malfunctions the emergency operation can be done using the EMERGENCY OPERATION switch Press the EMERGENCY OPERATION switch Each time the EMERGENCY OPERATION switch is pressed the unit will operate in order of EMERGENCY COOL MODE EMERGENCY HEAT MODE and STOP MODE However when the EMERGEN
30. rning smell etc occurs stop the air conditioner and disconnect the power supply plug or turn off the breaker e Ifthe unit continues to be operated in an abnormal condition it may cause a fire trouble etc In this case consult your dealer Repairs or relocation should not be done by the customer e If this is done incorrectly it may cause a fire an electric shock or injury from the unit falling water leaking etc Consult your dealer e Ifthe power supply cord is damaged it must be replaced by the manufacturer or its service agent in order to avoid a hazard A CAUTION When the air filter is to be removed do not touch the metal parts of the indoor unit e This may cause an injury Do not use an insecticide or flammable spray e This may cause a fire or deformation of the cabinet Do not put a pet or houseplant where it will be exposed to direct airflow e This could injure the pet or plant Do not leave the unit on an installation stand which is damaged e The unit may fall and this may cause an injury Do not step onto an unstable bench when maintaining the unit etc e This may cause an injury etc if you fall down Do not pull the power supply cord e The core wire of the power supply cord may be disconnected and this may cause a fire Do not charge or disassemble the batteries and do not throw them into a fire e This may result in leakage fire or an explosion Do not operate the unit for a long time in high hu
31. s at high speed during operation Manually move the horizontal vane to the end towards you and make sure the fan has stopped Remove the horizontal vane Be sure to hold horizontal vane when unlocking the stoppers Follow the procedure O and to remove the horizontal vane Swing the vertical vanes out one by one D Hold the tab of each vertical vane and move the vertical vanes in the directions of the arrows The vanes cannot be removed O Holding the unit lightly with one hand grab the tab of each vertical vane with the other hand and pull it downward to swing out each vertical vane Pull towards you e Be sure to hold the tab to swing out the vertical vanes otherwise the vanes can be damaged e Do not use excessive force to the fan guard during this procedure The fan guard may be deformed and the vanes may not work properly Clean the air outlet and fan of the indoor unit Make sure the fan has stopped e Be careful not to injure your hands e lf the air outlet or fan is dirty moldy or dusty clean with a wet or dry soft cloth or with the brush of QUICK CLEAN KIT which is installed to a vacuum cleaner If the dirt is noticeable around the air outlet clean with a cloth soaked in a solution of mild detergent diluted in lukewarm water e Please refer to the instructions described in QUICK CLEAN KIT for the details of the way to clean with the brush of
32. set to horizontal Water leaks from the outdoor unit During COOL and DRY operations pipe or pipe connecting sections are cooled and this causes water to condense In the heating operation the defrosting operation makes water frozen on the outdoor unit melt and drip down In the heating operation water condensed on the heat exchanger drips down White smoke is discharged from the outdoor unit e In the heating operation vapor generated by the defrosting operation looks like white smoke Air does not blow out soon in the heating operation e Please wait as the air conditioner is preparing to blow out warm air The operation is stopped for about 10 minutes in the heating operation e Defrosting of the outdoor unit is being done Defrosting operation Since this is completed in 10 minutes please wait When the external temperature is too low and humidity is too high frost is formed The room cannot be cooled sufficiently When a ventilation fan or a gas cooker is used in a room the cooling load increases resulting in an insufficient cooling effect When the outside air temperature is high the cooling effect may not be sufficient Hissing sound is sometimes heard e This is the sound when the flow of refrigerant inside the air conditioner is switched The room cannot be heated sufficiently e When the outside air temperature is low the heating effect may not be sufficient
33. shock Before starting maintenance E Turn off the breaker and or disconnect the power supply plug 9 OV N CAUTION When the unit is to be cleaned switch it off and disconnect the power supply plug or turn off the breaker Since the fan rotates at high speed during operation it may cause an injury Cleaning the indoor unit E Clean the unit using a soft dry cloth e If the dirt is noticeable wipe the unit with a cloth soaked in a solution of mild detergent diluted in lukewarm water e Do not use gasoline thinner benzine polishing powder or insecticide The unit may be damaged e The front panel may come off if it is lifted up past its level position If the front panel comes off refer to step in CLEANING THE FRONT PANEL CLEANINGTHE FRONT PANEL HEAT EXCHANGER AND FAN Front panel Hold both ends of the front panel and lift the panel up until a click is heard Holding the hinges lift the panel up until it is level and pull the hinges forward to remove the front panel N CAUTION Do not drop the front panel or pull it out forcibly The panel may be damaged Do not step onto an unstable bench when removing or installing the front panel This may cause an injury etc if you fall down Wipe the front panel with a soft dry cloth or wash it with water After washing the panel wipe up the remaining water with a soft dry cloth and let it dry out of direct s
34. ter is dyed with a natural material catechin that is contained in tea The catechin air filter deodorizes odor and noxious gases such as formaldehyde ammonia and acetaldehyde Moreover it restrains the activity of the viruses adhering to the filter CLEANING THE AIR CLEANING FILTER Cleaning the air cleaning filter about once every 3 months Remove the catechin air filter left one The air cleaning filter is not attached to the right side catechin air filter TN Catechin air filter N Pull up the tabs on both sides of the air cleaning filter with your finger and remove the air cleaning filter blue bellows type from the catechin air filter Catechin air filter Back side Soak the filter together with its frame in lukewarm water and wash it W If the dirt is noticeable use a solution of mild detergent diluted in lukewarm water m if hot water 50 C or more is used the filter may be deformed m Do not use a scrubbing brush or sponge This may damage the surface of the filter E Do not use a chlorine detergent After rinsing with water lukewarm water shake off the excess water and dry the filter well in the shade W Do not expose the filter to direct sunlight or heat from a fire when drying it REPLACEMENT OF THE AIR CLEANING FILTER When the capacity is lowered because of dirt etc it is necessary to replace the air cleaning filter Air cleaning filter repl
35. these models are equipped with an auto restart function the air conditioner should start operating again Refer to Description of AUTO RESTART FUNCTION on page 6 Even if the above items are checked when the air conditioner does not recover from the trouble stop using the air conditioner and consult your dealer In the following cases stop using the air conditioner and consult your dealer e When water leaks or drops from the indoor unit e When the left operation indicator lamp blinks e When the breaker trips frequently e The remote control signal may not be received in a room where an electronic ON OFF type fluorescent lamp inverter type fluorescent lamp etc is used e Operation of the air conditioner may interfere with radio or TV reception in areas where the reception is weak An amplifier may be required for the affected device e When thunder is heard stop operation and disconnect the power supply plug or turn off the breaker Otherwise the electrical parts may be damaged WHEN YOU THINK THAT TROUBLE HAS OCCURRED Question Answer not a malfunction The air conditioner cannot be operated for about 3 minutes when restarted e This protects the air conditioner according to instructions from the microprocessor Please wait Cracking sound is heard This sound is generated by the expansion contraction of the front panel etc due to change in temperature The air from the indoor unit s
36. unlight e If the dirt is noticeable wipe the front panel with a cloth soaked in a solution of mild detergent diluted in lukewarm water e Do not use gasoline benzine thinner polishing powder or insecticide and do not wash the front panel with a scrubbing brush or the hard surface of a sponge e Do not soak the front panel in water lukewarm water longer than two hours and do not expose the panel to direct sunlight heat or flames when drying it The panel may be deformed or discolored Hold both ends of the front panel keep the panel level and insert the hinges into the holes on the upper part of the indoor unit until they click into place Then close the front panel securely and press the three positions on the front panel as indicated by the arrows s E e Heat exchanger M Remove the catechin air filter before cleaning the heat exchanger You can sweep the surface of heat exchanger if you install the brush of QUICK CLEAN KIT to your vacuum cleaner Please refer to the instructions described in QUICK CLEAN KIT for details A WARNING Do not touch the heat exchanger directly with your hands Otherwise you may get injured It is recommended to protect your hands with a pair of gloves N CAUTION lt Do not step onto an unstable bench when cleaning Otherwise you may fall down and get injured Use only the brush of QUICK CLEAN KIT Do not use other stuffs Other
37. wise the heat exchanger of the indoor unit may get damaged Optional product Quick Clean Kit MAC 093SS E Name of parts Parts number Optional product is available from your local dealer NOTE The QUICK CLEAN KIT can only be fitted to a vacuum cleaner with a hose tube diameter inside diameter of 32 to 39 mm Refer to the instructions of the QUICK CLEAN KIT Refer to page 12 for cleaning the fan CLEANING THE CATECHIN AIR FILTER Remove the catechin air filter Open the front panel then remove replace the filter After washing with water lukewarm water dry the catechin air filter well in the shade e Do not expose the catechin air filter to direct sunlight or heat from a fire when drying it TM Catechin air filter N Remove AN CAUTION When the catechin air filter is to be removed do not touch the metal parts of the indoor unit This may cause an injury Install the catechin air filter Securely install its tabs Remove dirt from the catechin air filter using a vacuum cleaner or by washing the filter with water e Do not wash with scrubbing brush or hard surface of sponge Otherwise the filter may deform e Ifthe dirtis noticeable wash the filter with a solution of mild detergent diluted in lukewarm water e If hot water 50 C or more is used the filter may be deformed Install N What is Catechin air filter The air fil

Mitsubishi Electric MUZ-GA25VA air conditioner

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