USER`S MANUAL
Contents
1. Hold firmly the filter at both sides as shown at right and insert securely Close the air inlet panel Do not use the following articles Hot water 40 C or more It may deform or discolour the unit A CAUTION a Petrol paint thinner benzine or cleanser etc Operating without putting back the air filters will They may deform or scratch the unit make the unit dusty and may cuse damage Cleaning the unit Cleaning the air inlet panel e Wipe the unit with a soft dry cloth or use a Removal installation of air inlet panel vacuum cleaner e Wipe the panel with a soft If the unit is very dirty wipe it with a cloth soaked in warm water A CAUTION Do not wash the panel with water Cooling heating is affected by an air filter clogged up with dust etc and the operation noise becomes louder It may also use extra electricity Please clean the air filter at appropriate intervals At the end of the season At the beginning of the season Perform the fan operation for a half day Make sure that there are no obstacles blocking the airflow around the air intake and outlet openings of Dry the inside of the unit the indoor and outdoor units Check if there is no corrosion or rust on the base frame of the outdoor unit Stop the unit and turn off the power supply The unit consumes appr 2W even when the unit is not operating Ensure that the earth wiring is not snapped nor Turning off t2. Set to Ja H ON TIMER operation setting Set by the procedure on page 13 Set to ow __ LILI The setting of the lighting of the timer light yellow of this unit is complete U After the SLEEP TIMER set time has elapsed the operation stops and it starts y from 5 to 60 minutes before the ON TIMER s set time SLEEP CANCEL The timer light is turned off when ON TIMER set time comes CLEAN 44 bd Changing of set time Set a new time by using the SLEEP or ON TIMER button How to cancel Press the CANCEL button to turn off the timer display PROGRAM TIMER operation H The timer operations of the combination of ON and OFF TIMER Once this has been set the timer operations will be repeated at the same time every day unless the ON OFF button is pressed Example When it is prefered to stop at 22 30 and then start operation at 8 00 near the set temperature H OFF TIMER operation setting Set by the procedures on page 12 Set to Olav cca 2 2230 H ON TIMER operation setting Set by the procedures on page 13 Set to OW LILI Timer light yellow on the unit will light when the setting is completed The set time will be displayed on the remote control unit The display will change depending on the operational status OON OFF With ON TIMER the air conditioner starts running Then Og with OFF TIMER the air conditioner stops running SLEEP CANCEL Oo
3. OFF With OFF TIMER the air conditioner stops running Then eed with ON TIMER the air conditioner starts running CLEANS LI Changing of set time Set a new time by using the OFF TIMER or ON TIMER button How to cancel Press the CANCEL button to turn off the timer display 24 HIGH POWER ECONOMY operation If the air conditioner is not operating point the remote control toward the air conditioner and Je MITSUBISHI HEAVY INDUSTRIES LTD Press the ON OFF button Press the HI POWER ECONO button When the operating mode is AUTO COOL or HEAT Every time the HI POWER ECONO button is pressed the display is switched in the order of ee eco __ No display HIGH POWER ECONOMY Normal operation When the operating mode is DRY or PROGRAM TIMER Every time the HI POWER ECONO button is pressed the display is switched in the order of SLEEP CANCEL CLEAN eco No display ECONOMY Normal operation Pressing the HI POWER ECONO button intensifies the operating power and initiates powerful cooling or heating operation for 15 minutes continuously The remote control ee displays and the FAN SPEED display disappears Gk During the HIGH POWER operation the room temperature is not When the following operations are set HIGH POWER operation Concerning HIGH POWER operation controlled When it causes an excessive cooling or heating press will be canceled the HI POWER
4. SLEEP TIMER operation H The unit stops automatically after the set time lapses The set temperature is automatically adjusted according to the elapsed time in order to avoid too much cooling or heating Press the SLEEP button H If it is pressed while the unit is off SLEEP TIMER operation starts with the previous operation settings and the air condi tioning is turned off after the set time elapses ON OFF H H If it is pressed while the unit is running The air conditioner is turned off after the set time elapses Every time the button is pressed the display changes as follows e e h Ch Fa Units of one hour amp Tu FAN SPEED No display e n cancelled ILI Example You prefer it to stop after 7 hours SLE P CANCEL CLEAN lt 4 Set to Ma 1 The timer light yellow is on g The unit stops after the set time lapses Changing of set time Set a new time by pressing SLEEP button How to cancel Press the CANCEL button to turn off the SLEEP indicator Cannot be set at the same time with OFF TIMER SLEEP TIMER Unit display section When SLEEP TIMER is selected the set temperature is automatically 4 i sr N i Se aori RUN adjusted after a while ensuring that the room is not too cold during cooling or 0 too warm during heating During cooling the preset temperature is lowered by 1 C at the start of HI POWER SLEEP operation when the timer is set
5. leakage breaker may be neces sary If you do not install an earth leakage breaker you may get an electric shock Make sure that the system has been properly earthed Earth cables should never be connected to a gas pipe water pipe lightning con ductor or telephone earth cable Incor rect installation of the earth cable may produce an electric shock Z DANGER Do not expose yourself to the cooling air for a long period This could affect your physical condi tion and cause health problems Do not insert anything into the air inlet This may cause injury as the inter nal fan rotates at high speed Store the remote control out of reach of infants Failure to observe this may result in the batteries being swallowed or other accidents CAUTION Only use approved fuses Use of steel or copper wire instead of an approved fuse is strictly prohib ited as it may cause a breakdown or fire Do not place a flammable insecticide or paint spray near the blower nor spray it directly on the system This may result in a fire The system should only be used for its original purpose and not for anything else like for instance preservation of food plants or animals precision devices or works of art The system is only intended for use in ordinary domestic rooms Any other use of the system may damage the quality of food etc Do not handle the switches with w
6. not spill any liquid on the Do not place heavy objects on the cles between the remote control remote control remote control or step on it and the unit Are the batteries running down If the operation fails operate the unit with Below 9 ete temporary operation function C Replacing the batteries above Contact your dealer to have the remote control Replace the batteries with new ones and retry the operation checked Operation program e OPERATION MODE AUTO FAN SPEED AUTO AIR FLOW AUTO the button again Do not hold the Unit ON OFF button down for more than 5 seconds Holding it down longer than 5 seconds sets the automatic cooling used during servicing or when relocating the air conditioner Operation and display section for remote control Operation section OPERATION MODE select button Each time the button is pressed the IN Each time the button pressed the N display is switched over in turn MITSUBISHI display is switched over in turn CF Page 8 RANT Rouse BES DE utton s Aad G This button changes the HIGH POWER g ON OFF luminous button jasi E Q oO Kej Press to start operation press again to wog ECONOMY mode LDT z stop Page 15 ON OFF FAN SPEED MODE AIR FLOW UP DOWN button This button changes the air flow up down TEMPERATURE button direction F Page 10 These buttons set the room tem
7. will light green Upper and lower air outlets gt Upper air outlet AIR OUTLET SELECTION AIR OUTLET SELECTION light OFF light ON RUN HI POWER ED TIMER ECONO AIR OUTLET g SELECTION P Auto airoutlet selection COOL DRY operation In case both lower and upper outlets operation is selected in Cooling or Dry operation both outlets will be kept for sixty minutes after the start or until room temperature is below the setting point And then the air outlet will change to the upper outlet That state will be maintained until switch is turned off In case both outlets operation with Auto fan speed mode is selected the upper outlet will be kept for ten minutes after the start or until room temperature is close to reaching the setting point And then the air outlet will change to both outlets in order to spread comfort air to every corner HEAT operation In case both lower and upper outlets operation with Auto fan speed mode is selected the lower outlet will be kept for twenty minutes after the start or until room temperature is close to reaching the setting point And then the air outlet will change to both outlets That state will be maintained until the switch is turned off Automatic adjustment of lower air outlet direction prevents stirring up of warm air and keeps opti mum comfort at floor level 17 Maintenance How to open close the air inlet panel Removal installation of ai
8. After that the temperature goes O up by 1 C every an hour to become 1 C higher than the present temperature TIMER a Q _ TIMER light yellow During heating Preset temperature is lowered by 1 C at the start of SLEEP operation when the timer is set After that the temperature to becomes ke ECONO f AIR OUTLET 3 C lower in an hour and 6 C lower in two hours than the present SELECTION temperature Es OFF TIMER operation The unit stops automatically when the set time comes With the air conditioner turned off start the operation from Step 1 With the air conditioner running start from Step 2 Example You prefer it to stop 22 30 Press the ON OFF button Press the OFF TIMER button OFF TIMER display is blinking Press the or button Every time the button is pressed the display is switched in the order of 0 00 0 10 gt 0 20 gt 1 00 gt 1 10 gt Units of ten minutes 0 00 23 50 23 40 23 00 22 50 gt Units of ten minutes Set at 22 30 4 3 Every time the V button is pressed the display is switched in the order of 2 SLEEP CANCEL _ gt CLEAN 44t Press the OFF TIMER button The display changes from blinking to steady lighting and the setting is complete The timer light yellow is on Changing of set time The unit stops at the end of the set period of time Make sure to press the button within 60 s
9. ECONO button again to cancel the HIGH When the HI POWER ECONO button is pressed again POWER operation a E When the operation mode is changed HIGH POWER operation is not available during the DRY the When it has been 15 min since HIGH POWER operation program timer operations has started When HIGH POWER operation is set after ON TIMER operation Not operable while the air conditioner is OFF HIGH POWER operation will start from the set time Concerning ECONOMY operation Pressing the HI POWER ECONO button initiates a soft operation with the power suppressed in order to avoid an excessive cooling or heating The unit operates 1 5 C higher than the setting temperature during cooling or 2 5 C lower than that during heating The remote control eco displays and the FAN SPEED display disappears Nk It will go into ECONOMY operation at the next time the air condi When the following operations are set ECONOMY operation will tioner runs in the following case be canceled When the air conditioner is stopped by ON OFF button during When the HI POWER ECONO button is pressed again ECONOMY operation When the operation mode is changed DRY to FAN When the air conditioner is stopped in SLEEP or OFF Not operable while the air conditioner is OFF TIMER operation during ECONOMY operation _15 SELF CLEAN operation H CLEAN operation should be run after AUTO COOL and DRY operation to remove the moisture from insid
10. ER operation 14 Operation failure with the remote control 6 PROGRAM TIMER operation 14 Temporary run operation eeuess 6 HIGH POWER ECONOMY operation 15 Operation and display section for remote SELF CLEAN operation sesser 16 COMON NORA ARA RO rere aren errr 7 Auto restart fUnctiOn oe snury 16 Current time setting scrierii esere 7 Tips for effective operation sisirin 16 AUTO mode operation smmccrscessnins 8 Airoutlet selection msemimami iescmccopicin 17 Temperature adjustment during AUTO 8 Maintenance eee eeecseeseeseeseeeeseeeeeaes 18 FAN SPEED irtir deie e 8 Proper install tiOi sisiseeisrsiesseninesesiirtaissa 20 COOL HEAT DRY FAN mode operation 9 Troubleshooting ceceesseeeseeeeeereeseeeeeeees 20 Air conditioner operable temperature setting 9 NOUCE adits EA drep roter E vecomesies 21 Characteristics of HEAT mode operation 9 Contact your dealer eee eee eee 22 Airflow direction adjustment 10 About the Multiple Air conditioner 22 SLEEP TIMER operation 0 0 0 essere 11 Self diagnosis FUNCTION 002040 00598euu0 23 Safety precautions Before starting to use the system please read these Safety precautions carefully to ensure proper operation of the system precautions are classified as A DANGER and CAUTION Precautions as shown in the column DANGER in
11. USER S MANUAL MITSUBISHI HEAVY INDUSTRIES LTD AIR CONDITIONER SRF25ZJX S 7 H SRF35ZJX S SRF50ZJX S C This air conditioner complies with EMC Directive 2004 108 EC LV Directive 2006 95 EC Ce climatiseur est conforme la Directive EMC 2004 108 EC LV Directive 2006 95 EC Dieses Kimager t erf llt die EMC Direktiven 2004 108 EC LV Direktiven 2006 95 EC Questo condizionatore d aria conforme alla Direttiva EMC 2004 108 EC LV Direttiva 2006 95 EC Este acondicionador de aire cumple con la directiva EMC 2004 108 EC LV Directiva 2006 95 EC Deze airconditioner voldoet aan EMC Directive 2004 108 EC LV Directive 2006 95 EC Este aparelho de ar condicionado est em conformidade com a Directiva EMC 2004 108 EC e a Directiva LV 2006 95 EC AUTO TO K IATIOTIK Eival OUUQWVO JE TIG NPO IAYPAP G TNG O ny a EMC 2004 108 EK kat tng Odnyias LV 2006 95 EK RFB012A003 Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES LTD Air Conditioner To get the best long lasting performance please read and follow this User s Manual carefully before using your air conditioner After reading please store the Manual in a safe place and refer to it for operational questions or in the event of any irregularities This air conditioner is intended for domestic use Do not vent R410A into the atmosphere R410A is a fluorinated greenhouse gas covered by the Kyoto Protocol with a Glob
12. al Warming Potential GWP 1975 Deme H d i Your Air Conditioning product may be marked with this symbol It means md that waste electrical and electronic equipment WEEE as in directive 2002 96 EC should not be mixed with general household waste Air conditioners l mmm Should be treated at an authorized treatment facility for re use recycling l and recovery and not be disposed of in the municipal waste stream Please l contact the installer or local authority for more information Me i a i i i r This symbol printed in the batteries attached to your Air Conditioning product is information for end users according to the EU directive 2006 66 EC article 20 annex Il Batteries at their end of life should be disposed of separately from general l household waste If a chemical symbol is printed beneath the symbol shown above this chemical symbol means that the batteries contain a heavy metal at a certain concentration This will be indicated as follows Hg mercury 0 0005 Cd cadmium 0 002 Pb lead 0 004 Please dispose of batteries correctly at your local community waste l collection or the recycling center L contents Safety precautions s 408u080 u0 ccmse mesmessie 2 OFF TIMER operation ccccuceuess 12 Name of each part and its function 4 ON TIMER operation 13 Remote control handling ccceeue ueus 6 SLEEP TIMER ON TIM
13. arried out during the off season If the supply cord of this appliance is damaged it must only be replaced by a repair shop appointed by the manufacturer because special purpose tools are required Please carry out the following checks before making a service call The air conditioner does not work at all Has the power switch been turned off Has the timer been set in the ON position Poor cooling or heating Is there a power failure or a blown fuse Y S Have you set the thermostat at a suitable temperature suitable Se temperature p va Is the air filter clean Not Poor cooling Did you leave any doors or windows open AB AZ Is there any direct sunlight en tering the room Is there a heat source in the room Are there too many people in the room If the air conditioner does not oper ate properly after you have checked the left points or if any doubt still exists after you have consulted page 21 or if things happen as shown on page 22 switch off the power and contact your dealer Dees cer ee Re a ee 5a r i 2 7 An alternative refrigerant R410A is used in this air conditioner When asking your dealer for service or inspection and maintenance explain the dealer about it L ee ee ee ee ee ee ee ee ee I 20 The unit does not restart immediately after you have stopped it RUN light is on Not operating o L Restart is blocked fo
14. at was started later either stop the air conditioner that has priority or cause the operation type of the unit operated first to match that of the unit operated second Automatic Operation When the remote control operation switch is in the Auto mode the air conditioner automatically selects either Cool Dry or Heat when operation is started depending on the room temperature During simultaneous operation of air conditioner units operation modes may be automatically changed in response to the temperatures of the individual rooms this will result in the operation of the outdoor unit being stopped In such a case COOL or HEAT mode should be used instead of AUTO This is only relevant when more than one air conditioner unit is being used Refrigerant oil recovery operation If the all of the indoor units are not operated at the same time for an extended period the cooling or heating performance may temporarily decrease This is in order to control the recovery of the refrigerant oil in the stopped indoor unit s At this time the sound of refrigerant flowing may be heard from the stopped indoor unit s 22 Self diagnosis function MH We are constantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows RUN light Description of trouble Cause 1 time flash Heat exchanger sensor error Broken
15. ation of another indoor unit is stopped ajas Contact your dealer H Turn off the power switch immediately and inform your dealer in any of the following situations The fuse or switch blows continu ously Fuse often blows 2 The cable becomes extremely hot The covering of the cable is cracked A CAUTION If the power cord becomes damaged ask your dealer or a qualified engineer to install the replacement to avoid accidents The TV radio or other equipment starts to malfunction A switch does not activate properly You hear a strange noise during opera tion When the foreign matters enter the indoor unit through the The RUN and TIMER lights on the unit display section blink air outlets and the dumper becomes inoperable call your quickly 0 5 sec ON 0 5 sec OFF and do not work dealer When abnormalities occur turn off the power supply immediately and turn it on after 3 minutes Restart the operation with ON OFF button of the remote control and the abnormalities still continue The air conditioners cannot be in different operating modes at the same time such as one unit being in the Cool mode and one unit being in the Heat mode When conducting different operations the air conditioner that was operated first will be given priority so the air conditioner that is operated after that will conduct air blowing operation When you want to give priority to the air conditioner th
16. caused by heat expansion or contraction You hear a hissing or clicking sound This is caused by the operation of the refrigerant control valves or electric components After a power cut the unit does not restart even if power has been restored If the auto restart function is not set the unit will not restart automatically Use the remote control to start the operation again Remote control signals are not received Remote control signals may not be received if the signal receiver on the air conditioner is exposed to direct sunlight or other bright light If so cut out the sunlight or reduce the other light Moisture may form on the air outlet grills If the unit is operated for a long time in high humidity moisture may form on the air outlet grills and start dripping Whistling noise is heard from the outdoor unit The noise means that the revolution speed of the compressor is increasing or decreasing Fan won t stop immediately after unit operation was stopped Indoor fan Fan will not stop after 2 hours if set to CLEAN operation Outdoor fan Fan will not stop about a 1 minute period in order to protect the unit RUN light stays on even though operation was stopped The RUN light illuminates during CLEAN operation Run light turns off when CLEAN operation ends Sometimes a Shooooo sound might come for a short time from the unit that is turned off This is the sound when oper
17. dicate that improper handling could lead to drastic result like death serious injury etc Even precautions as shown in the column A CAUTION might pose a serious problem depending on the circumstances Please observe these precautions with great care since they are essential to your safety The safety Symbols which appear frequently in the text have the following meaning Strictly prohibited Observe instructions with great care Provide proper earthing When you have read this instruction manual please keep it without missing If someone else takes over as operator make certain that the manual is also passed on to the new operator E INSTALLATION PRECAUTIONS A DANGER A CAUTION The system is for domestic residential etc use If used in severer environments such as an engineering workplace the equipment may function poorly The system must be installed by your dealer or a qualified professional It is not advisable to install the system by yourself as faulty handling may cause leakage of water electric shock or fire IE OPERATION PRECAUTIONS Do not install it where flammable gas may leak Gas leaks may cause fire Make sure to install the drain hose properly so that all the water is drained out Improper installation may lead to water drop in the room resulting in wet furniture Depending on the place of installation an earth
18. e the indoor unit and control the growth of mold and bacteria WOOO In order to active CLEAN operation press the CLEAN switch with the tip of a ballpoint pen Every time the CLEAN switch is pressed the display is switched in the order of f No display CLEAN on CLEAN off Two hours later the air conditioner stops running automatically To stop the air conditioner immediately press the ON OFF button CLEAN operation is not operated after HEAT and FAN OFF TIMER SLEEP operations have finished The indoor unit fan runs for about two hours in CLEAN operation The RUN light illuminates during CLEAN operation 3 sec j ON OFF E L 1 sec Pressing the SLEEP button during CLEAN operation cancels the CLEAN op eration and then the unit is set to SLEEP operation This is not a function for removing mold germs or grime that have already ad hered to the unit Auto restart function H What is auto restart function Auto restart function records the operational status of the air conditioner immediately prior to be switched off by a power cut and then automatically resumes operations after the power has been restored The following settings will be cancelled Timer settings HIGH POWER operations Auto restart function is set at on when the air conditioner is shipped from the factory Consult with your dealer if this function needs to be switched off When power failure occurs
19. each part and its function if Up down airflow direction adjustment flap Upper air outlet Air blows out of here Page 10 Left right airflow adjustment louver Page 10 Unit operation switch Air Inlet panel Draws the indoor air Refrigerant piping connection and electric wire S Drain hose Drains water from the indoor unit Up down airflow direction adjustment flap Left right airflow adjustment louver F Page 10 Lower air outlet Air blows out of here Air inlet panel removed Removes dust or dirt from the inlet air F Page 18 Heat exchanger Name of each part and its function Unit display section This button can be used for turning on off the unit when remote control is not available RUN RUN HOT KEEP light green Illuminates during operation HI POWER Blinks when airflow stops due to the HOT LA KEEP and CLEAN operation HI POWER Light green oN 1 5 sec Tlluminates during HIGH POWER operation TIMER HOT KEEP FUP AP APL OFF Page 6 AIR SELECTION button SELECTION 0 5 sec Use this button to switch between the combination of upper and Page 9 lower air outlets and upper air outlet vy ECONO C ii AIR OUTLET eco SELECTION D N 3 Sec AIR OUTLET SELECTION light green CLEAN operation Tlluminates during upper air outlet operation OFF 1 sec Remote contr
20. econds from the last operation in step 3 otherwise the setting is not completed The current time is not displayed during OFF TIMER operation Different from SLEEP TIMER operation automatic set temperature adjustment is not done during OFF TIMER operation Unit display section RUN HI POWER Set a new time by using the OFF TIMER button How to cancel Press the CANCEL button to turn off the timer display TIMER light yellow v AIR OUTLET SELECTION 12 ON TIMER operation H Operation starts 5 to 60 minutes before the set time so that the room temperature reaches the optimum temperature at the set time ON TIMER operation can be set regardless of whether the air conditioner is running or not Example In the case the preferred room temperature is required at 8 00 Press the ON TIMER button AX MITSUBISHI ON TIMER indicator VN is blinking Press the or button Every time the button is pressed the display is switched in the order of 0 00 0 10 0 20 gt gt 1 00 gt 1 10 Units of ten minutes Every time the amp button is pressed the display is switched in the order of 0 00 23 50 gt 23 40 gt 23 00 22 50 gt Units of ten minutes Set at 8 00 Press the ON TIMER button The display changes from blinking to steady lighting and the setting is complete The timer light yellow is on The operation stops if it i
21. er to clean inside the indoor unit do not attempt to do by yourself The use of a non approved detergent or improper washing method may damage the unit s plastic compo nents and cause leaks Damage smoke or fire may also happen if the detergent comes in contact with electrical parts or the unit s motor A DANGER Do not perform any repairs or modifica tions by yourself Consult the dealer if the unit requires repair If you repair or modify the unit it can cause water leaks electric shocks or fire If you notice anything abnormal smell of burning etc stop the system turn off the power supply and consult your dealer Continued use of the system in ab normal circumstances may result in malfunctioning electric shock fire etc Consult your dealer for repairs Wrong repairs could cause an electric shock fire etc In case the air conditioner is relocated elsewhere contact your dealer or a professional fitter Faulty installation may cause water leakage electric shock fire etc If the air conditioner fails to cool or warm the room it may have a refrigerant leakage Contact your dealer If refrigerant needs to be added check with your dealer for proper instructions The refrigerant used in your air conditioner is safe However if refrigerant unexpectedly leaks from the unit onto a fan heater stove hotplate or other heat source harmful gases could be generated Name of
22. et hands S This may cause an electric shock You should not expose any combus tion appliance directly to the air stream of the air conditioner S Do not place anything containing wa ter like vases on top of the unit 9 The appliance may then work inad equately Water entering the unit could dam age the insulation and therefore cause an electric shock Do not swing from the indoor unit O Do not wash the air conditioner with wa ter S This could cause an electric shock Do not install the system where the air flow direction is aimed directly at plants or animals S This will damage their health If the indoor unit falls down you may get injured I Safety precautions A CAUTION Do not sit on the outdoor unit nor put anything on it If the unit falls down or things drop off it people could get hurt Do not place household electrical appli ances or household items under neath the indoor or outdoor units Condensation falling from the unit may stain objects and cause accidents or electrical shock Do not control the system with main power switch It can cause fire or water leakage In addition the fan can start unexpect edly which can cause personal injury When you clean the system stop the unit and turn off the power supply Never open the panel while the inter nal fan is rotating Stop the unit and turn off the power if you hear th
23. ge 10 Incase air is not blown out when starting the heating operation Page21 The operation program can also be set or changed when the air conditioner is not in operation Point the remote control toward the air conditioner and Press the MODE select button Move the m mark to the required operation position X Cool x Heat 6 Dry Fan Press the ON OFF button Press the TEMP button Press or V button for the preferred temperature Standard _ Press the FAN SPEED button Set the fan speed as preferred Press the ON OFF button Air conditioner operable temperature setting Use within the following operational range Operating outside of this range may result in the protection devices being activated preventing the unit from working ee Cooling operation Heating operation Outside temperature Approximately 15 to 46 C Approximately 15 to 21 C Inside temperature Approximately 18 to 32 C Approximately 15 to 30 C Below approximately 80 Inside humidity The long term use of the unit with a humidity level exceeding 80 may result in condensation forming on the surface of the indoor unit leading to water drips Characteristics of HEAT mode operation Mechanism and capacity of HEAT mode operation E Mechanism If the outside temperature becomes low and humidity is high the heat exchanger in the outdoor unit may frost over which preven
24. he power supply will help saving energy consumption and cost disconnected Clean and reinstall the air filters Ensure that the air filters are clean Clean both the indoor and outdoor units Turn on the power supply Remove batteries from the remote control Insert batteries in the remote control Installing inspecting and replacing the air cleaning filter 1 Open the air inlet panel and remove the air filters F Page 18 2 Remove the filter holders with the air cleaning filter installed in the folders from the air conditioner 3 Remove the photocatalytic washable deodorizing filter orange from the filter holder and inspect the filter Periodically remove any dust or dirt from the photocatalytic washable deodorizing filter If the photocatalytic washable deodorizing filter is particularly dirt it may be washed with water However the filter is fragile so be sure to wash it installed in the filter holder to avoid damaging it After washing the filter place it in sunlight to dry Placing the filter in sunlight revitalizes the deodorizing effect Remove the natural enzyme filter green from the filter holder and inspect the filter Use a vacuum cleaner to remove any dust or dirt from the natural enzyme filter Replace the natural enzyme filter if it cannot be cleaned or if it has been used for about 1 year The natural enzyme filter should be replaced after about 1 year of use However the actual replaceme
25. heat exchanger sensor wire poor connector connection 2 time flash TIMER light ON Room temperature sensor error Broken room temperature sensor wire poor connector connection 3 time flash Heat exchanger sensor 3 error Broken heat exchanger sensor 3 wire poor connector connection 5 time flash Active filter voltage error Defective power supply 6 time flash Indoor fan motor error Defective fan motor poor connector connection 7 time flash TIMER light V Refrigerant is insufficient Closed service valve Heat exchanger sensor 1 error Refrigerant is insufficient leaking Closed serice valve Broken heat exchanger sensor 1 wire poor connector connection 1 time flash Outdoor temperature sensor error Broken outdoor sensor wire poor connector connection RUN light keeps flashing 2 time flash Outdoor heat exchanger fluid pipe sen sor error Broken heat exchanger fluid pipe sensor wire poor connector connection 4 time flash Discharge pipe sensor error Broken discharge pipe sensor wire poor connector connection 5 time flash Suction pipe sensor error Broken suction pipe sensor wire poor connector connection 1 time flash Current cut Compressor locking open phase on compressor output shor
26. in 60 seconds from the last operation in step 2 otherwise the time is not set The timer operation works based on the time clock so please set it correctly The remote control data is reset when the present time is set AUTO mode operation H Automatically selects the operation mode COOL HEAT DRY depending on the room temperature when switched on When the unit is not in AUTO mode Press MODE button Move the H mark to the Auto position Point the remote control toward the air conditioner and Press the ON OFF button Press the ON OFF button DECONO TEMP OFS In case air is not blowing out during ONA OFF the operation TIMER CUE ae CANCEL C Page 21 When the included clean filter is in stalled the air conditioner will clean the air during automatic operation AUTO mode can be operated by simply pressing the ON OFF button CLEAN a If you do not want the AUTO mode program change to COOL HEAT DRY or FAN instead of AUTO AUTO The current time and preset OPERA CF Page 9 TION MODE are displayed while the air conditioner s tum d off e Airflow direction adjustment procedure Page 10 Air temperature adjustment is possible even during automatic operation There are 6 levels of adjustment possible with the A button or the button When a change in temperature is required Press the or button When it is a little cold Press
27. nt period may vary depending on the conditions in which the filter is used Do not dispose of the filter holders They are reused 4 Install the air cleaning filter in the filter holders and then install the filter holders in the air conditioner The natural enzyme filter and the photocatalytic washable deodorizing filter may be installed on either the upper or lower side of the air conditioner Place the natural enzyme filter with the green side front Filter holder 5 Install the air filters and closed the air inlet panel Page 18 A CAUTION Do not expose natural enzyme filters to direct sunlight for an extended period The bacteriolytic effect will be lost When installing an air cleaing filter in the indoor unit be careful not to injure your hand with the heat exchanger For replacement the air cleaning filter contact your dealer Photocatalytic washable Sources of odors on the filter are broken up resulting in a deodorizing filter deodorizing effect By using the work of enzyme mold and bacteria on the filter Natural enzyme filter are destroyed and the room air is kept clean 19 Proper installation Do not put any obstruction in front of the indoor unit preventing proper ventilation and functioning Do not install the unit in any of the following places Where there is a danger of leaking flammable gases Where there is substantial splashing of oil Malfunctioning due t
28. o corrosion may occur if the unit is installed in a spa where sulfide gases are generated or in a seaside resort exposed to sea breezes Contact your dealer The air conditioner and remote control must be at least 1 metre away from a TV set or radio Drain the dehumidified liquid from the indoor unit into a spot that drains well When you install the unit take care to choose a place that can comfortably stand the weight of the unit and does not increase the operating noise or vibration If vibration is transmitted through the house fix the unit with the aid of vibration proof pads between the unit and the fittings Select a place where cold or hot air operation noises from the indoor and outdoor units do not cause any inconvenience to your neighbours Do not leave any obstacles near the outlet and inlet of the outdoor unit This may cause malfunctioning and increased operating noise If you hear an irregular noise during operation contact your dealer Inspection and maintenance Depending on operating environment the inside of the air conditioner may become dirty after a few year operations This will reduce performance In addition to normal cleaning we would recommend inspection and maintenance This may lead the air conditioner to having a longer life without any trouble Contact your dealer or any distributor for inspection and maintenance There will be a charge for this service We would recommend inspection and maintenance to be c
29. ol signal receiver Page 16 TIMER light yellow Illuminates during TIMER operation Page 11 14 ECONO light green Illuminates during ECONOMY operation ir Page 15 Accessories Natural enzyme filter Green Battery R03 AAA Micro x2 G 4 E Wood screw Quantity 2 wireless remote control Wireless remote Photocatalytic washable for remote control holder mounting control holder deodorizing filter Orange Buzzer sound for remote control When preset temperature 24 C automatic operation and automatic airflow are selected the buzzer sound PiPi is produced When turning off the air conditioner by pressing ON OFF button except CLEAN mode the buzzer sound Pi is produced This function is useful for operating the air conditioner in the darkness Air flow setting Preset temperature MED gt LO gt AUTO gt HI ce 2 27 224 22522 PI PI PI PI PIPI PI t PIPI PI PI Remote control handling H The following cases signify exhausted batteries Replace old batteries with new ones Replacing the batteries Receiving beep is not emitted when a signal is transmitted Display fades away xo Do not use old and new batteries together Pull out the cover and take out old batteries Remove the batteries when the remote control is not used for a long period The recommended effective period of a battery conforming to JIS or IEC should be 6 to 12 months with normal use If u
30. perature These buttons are used for setting the current time and timer function as well ON TIMER button This button selects ON TIMER operation Page 13 SLEEP button This button selects SLEEP operation F Page 11 CLEAN switch This switch selects the CLEAN mode F Page 16 CANCEL button This button cancels the ON timer OFF timer and SLEEP operation OFF TIMER button This button selects OFF TIMER operation Page 12 ACL switch This switch is for resetting microcomputer and setting time Page 6 The above illustration shows all controls but in practice only the relevant parts are shown Transmission procedure When each button on the remote control is pressed with the remote control pointing towards the air conditioner unit a signal is transmitted When the air conditioner receives the signal correctly it will beep Current time setting H When inserting the batteries the current time is automatically set to time setting mode 13 00 is displayed as the current time Set the clock to the right time Example Set to 10 30 Press the ACL switch Press with the tip of a ballpoint pen etc The time display blinks and can be set to the current time Press the or button ON OFF FAN SPEED Set to 10 30 Press the ON OFF button The display changes from blinking to steady lighting and the setting is complete Make sure to press the button with
31. r 3 minutes after you have stopped the operation to protect the unit Please wait for three minutes D YS The three minute protection timer in the microcomputer automatically starts it up again Airflow is not blown out when starting the HEATING operation RUN light blinks slowly 1 5 sec ON 0 5 sec OFF Airflow has stopped to prevent blowing out of cold air until the indoor heat exchanger has warmed up 2 to 5 min HOT KEEP program Airflow is not blown out for 5 to 10 min or blown out not warm wind for a moment at HEATING operation RUN light blinks slowly 1 5 sec ON 0 5 sec OFF When outdoor temperature is low and humidity is high the unit some times performs defrosting automatically Please wait During defrost ing water or steam may escape from the outdoor unit Airflow is not blown out when starting the DRY operation RUN light is on The indoor fan may stop to prevent re evaporation of dehumified moisture and to save energy Some steam escapes during COOL operation This may occur if the room s temperature and humidity are very high It disappears as soon as the temperature and humidity decrease There is a slight smell Air blown out during operation may smell This is caused by tobacco or cosmetics adhering to the unit You hear a slight gurgling sound 9 This is caused by refrigerating liquid moving within the unit You hear a slight cracking sound This is
32. r inlet panel Open Removal Place fingers at the recesses on both sides of the panel and pull down When removing the air inlet panel for internal cleaning or others the panel forward so that it will be open by about 15 degrees open the panel remove the string and then pull it forward Close Installation Push both ends evenly and press further lightly at the center Secure the upper edge of the air inlet panel by lightly pushing it in place the string as illustrated and then close the panel A CAUTION Make sure not to drop the air inlet pane Before maintenance During the operational season Turn off the power supply Cleaning the air filter Standard interval is once every two week are A Remove the air filter ON Pull up the air inlet panel forward A Lightly hold the knobs at both sides and OFF lift a little to remove the panel forward A CAUTION Flee Make sure not to drop the air inlet pane Do not spill any liquid There s a danger 2 Cleaning of electric shock If the filter is very dirty clean it with warm water approx 30 C and dry it thoroughly A CAUTION Wipe the unit with a soft L SA Do not clean the filters with boiling water dry cloth A Do not dry them over an open flame z Pull them out gently Do not touch the aluminum fins on the heat exchanger Stand firmly on a stepladder or other stable 3 Reinstall the air filter object when removing the inlet panel and filter
33. s set during operation Changing of set time Set a new time by using the ON TIMER button Operation starts 5 to 60 minutes before the set time The timer light yellow goes out at the set time How to cancel Press the CANCEL button to turn off the timer Make sure to press the button within 60 seconds from the last operation in step 2 otherwise the setting is not completed The current time is not displayed during ON TIMER operation indicator Comfort Start up Unit display section In ON TIMER operation the unit starts the operation a little earlier so that the RUN room can approach optimum temperature at ON time This is so called O Comfort start up Mechanism HI POWER The room temperature is checked 60 minutes before the ON time gt In COOL operation 4 Depending on the temperature at Stop Operation starts that time the operation starts 5 to 60 minutes before the timer is at Operation ON ee The function is available for both Set temperature SELECTION COOL and HEAT operation mode including AUTO It does not work for DRY mode Check the room Set time temp 60 mins before TIMER light yellow 13 SLEEP TIMER ON TIMER operation H Combined timer operation of SLEEP TIMER and ON TIMER Example When it is required to stop after 3 hours and then start operation at 8 00 near the set temperature E SLEEP TIMER setting Je MITSUBISHI Set by the procedures on page 11
34. sed longer or when an unspecified battery is used liquid may leak from the battery causing the remote control to malfunction Insert new batteries R03 AAA Micro x2 The recommendable effective period is printed on the battery This may be shorter due to manufacturering time to the unit However the battery may still be in working order after expiry of its nominal life ay attention to the and H When the display shows any abnormal condition Press the ACL switch with the tip of a ballpoint pen Using the remote control holder The remote control can be attached to a wall or pillar by using a remote control holder Before installing the remote control check that the air conditioner receives the signals properly Press the ACL switch with the tip of a ballpoint pen For installing or removing the remote control move it up or The timer setting mode is displayed down in the holder F Page 7 Warning note for remote control handling S Strictly prohibited Do not go near high temperature Do not leave the remote control ex Do not drop the remote control places such as an electric carpet posed to direct sunlight or other Handle with care or stove strong lighting The unit ON OFF button on the unit operates ON OFF temporarily when the remote control is not used Operation starts by pressing the unit ON OFF button it stops if you press o Do not put any obstructing obsta Do
35. tcircuit on power transistor closed service valve 2 time flash Trouble of outdoor unit Broken power transistor broken compressor wire Broken discharge pipe sensor wire poor connector connection Compressor blockage 3 time flash Over current Overload operation overcharge RUN light ON 4 time flash Power transistor error Broken power transistor 5 time flash Over heat of compressor Gas shortage defective discharge pipe sensor closed service valve 6 time flash Error of signal transmission Defective power supply Broken signal wire defective in outdoor unit boards 7 time flash Outdoor fan motor error Defective fan motor poor connector connection Keep flashing RUN light 2 time flash Cooling high pressure protection Gas over charge short circuit of outdoor unit 2 time flash Rotor lock Defective compressor Open phase on compressor Defective outdoor unit boards _ 23
36. the button H Each time the button is pressed the switch over occurs in the following order ET 1 gt 0 1 6 When 6 is indicated even if the A button is pressed the indicator does not change When it is a little hot Press the button gt 5 gt E Each time the button is pressed the switch over occurs in the following order HO gt 5 amp aoa 1 gt 0 gt V EROS 6 SLEEP CANCEL When 6 is indicated even if the button is pressed the indicator does not change CLEANS 4 Remote Control display Setting 6 5 4 3 2 1 0 1 2 3 4 5 6 temp C 20 21 22 23 24 25 26 27 28 29 30 31 32 H You can choose the capacity of your air conditioner Press the FAN SPEED button when heating mode cooling mode or fan mode Move the m mark to the preferred fan speed position Operation capacity by your choice FAN SPEED AUTO gt HI gt MED gt LO Set automatically by microcomputer AUTO Se Powerful operation with high capacity HI Standard operation MED Energy saving operation LO When changing FAN SPEED from HI to LO the sound of refrigerant flowing may be heard COOL HEAT DRY FAN mode operation ra MITSUBISHI Ke xs ro z SLEEP CANCEL CLEAN 44 Airflow direction adjustment procedure Pa
37. the timer setting is cancelled Once power is resumed set the timer again Tips for effective operation H Please observe the following for the most economic and comfortable use of your unit Set a suitable room temperature Excessively high or low temperatures are not good for your health and waste of electricity Clean the filters frequently Clogged filters may block the airflow and cause less efficient operation Avoid direct sunlight and draught Cut out direct sunlight by drawing the cur tains or blinds when cooling Keep windows and doors shut except when ventilating Adjust the airflow direction properly Adjust the up down and left right airflow to ensure a steady room temperature Operate the unit only when needed Use the timer properly to operate the unit only when needed 16 Keep heat source away when cooling Keep heat sources out of the room as much as possible Airoutlet selection AIR SELECTION button can switch between the combination of upper and lower air outlets and upper air outlet Not operable while the air conditioner is OFF Press the ON OFF button on the remote control Press the AIR SELECTION button on the unit display section Each time the AIR SELECTION button is pressed The combination of the upper and lower air outlets and the upper air outlet can be switched When the upper air outlet is selected AIR OUTLET SELECTION light on the unit display area
38. ts efficient heating If this happens the automatic defrost function is activated and during defrosting the heating operation stops for 5 to 15 minutes The unit draws heat from the cold outside air transfers it to indoors and heats the room As a characteristic of heat pump system the heating capacity reduces when the outside air temperature gets colder It may take some time to supply hot air after turning on the air conditioner If the outside temperature becomes extremely low it would be better to use an additional source of heating Defrosting during defrosting Both indoor and outdoor fans stop and the RUN light blinks slowly 1 5 sec ON 0 5 sec OFF during defrosting The outdoor unit may give off some steam during defrosting This is to help the defrosting process and is not a defect The HEAT operation resumes as soon as defrosting has been completed Although the upper and lower air outlets are selected the lower flap closes during defrost 9 Airflow direction adjustment H Up down direction can be adjusted with the AIRFLOW button on the remote control Every time you press this button the mode changes as follows Change on AIRFLOW UP DOWN mode N S Flap stopped Swing NOTE FOR HEATING OPERATION When operation starts the flap direction is fixed at the vertical position in order to avoid cold draft and return to the set the position that was set after the warm air supply is starting The flap direction
39. under or there is a danger of lightning It may damage the unit After a long period of use check the unit s support structure from time to time If you do not repair any damage right away the unit may fall down and cause personal injury Do not operate the system without the air filter It can cause malfunction of the sys tem due to clogging of the heat ex changer Do not pour liquid into this unit and do not put water container on this c 3 Water entering the unit could dam age the insulation and therefore cause an electric shock Do not place objects near the outdoor unit or allow leaves to gather around the unit If there are objects or leaves around the outdoor unit small animals may enter unit and contact electri cal parts and may cause a break down smoke or fire Do not let the foreign matters enter the indoor unit through the air outlets This may cause the dumper inoper able i PRECAUTIONS FOR RELOCATION OR REPAIRS Do not touch the aluminum fins on the air heat exchanger It may result in injury Do not shut off the power supply im mediately after stopping the opera Wait at least 5 minutes otherwise there is a risk of water leakage or breakdown o If you operate the system together with a combustion appliance you must regularly ventilate the indoor air Insufficient ventilation may cause accidents due to oxygen deficiency Contact your deal
40. will be controlled to the vertical position when the room temperature reaches the set temperature and compressor stops or when defrosting is in operation The airflow direction cannot be set during the period mentioned above Change the airflow direction settings after the warm air is supplied and the flap goes to the set position MEMORY FLAP FLAP STOPPED When you press the AIRFLOW button once while the flap is operating it stops swinging at the posi tion Since this angle is memorized in the microcomputer the flap will automatically be set at this angle when the next operation is started Recommended angle of the flap when stopping A DANGER Do not expose directory to airflow from the air conditioner for a long time eS f Horizontal blowing A CAUTION When in COOL or DRY operation do not operate for a long period with the airflow blowing straight down Otherwise condensation may appear on the outlet x grill and drip down COOL DRY NI Slant forward Do not try to adjust the flaps by hand as the control angle may change or the flap i blowing may not be closed completely Adjusting left right air flow direction Adjust the direction by moving the left right air flow fin by hand A CAUTION When adjusting the air flow direction be careful with the fans rotating in the air conditioner Otherwise you may injure your fingers The lower flap is not adjustable while the air conditioner is OFF 10
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