USER`S MANUAL - Mitsubishi Heavy Industries
Contents
1. 18 COOL HEAT DRY mode operation 11 Troubleshooting 18 Air conditioner operable INO cetera ene E E 19 temperature setting vesessmww 11 Contact your dealer 20 Characteristics of HEAT mode operation 11 About the Multiple Air conditioner 20 SLEEP TIMER operation s s s sesesesesesss 12 Self diagnosis function lt lt w lt vcs 21 Safety precautions e Before starting to use the system please read these Safety precautions carefully to ensure proper operation of the system e 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 Improper handling could lead to drastic result like death se rious injury etc A CAUTION Might pose a serious problem depending on the circum stances Please observe these precautions with great care since they are essential to your safety e Symbols which appear frequently in the text have the following meaning A WARNING Strictly prohibited Observe instructions proper earth with great care E INSTALLATION PRECAUTIONS A WARNING S e The system is for domestic residential etc use If used in severer environments such as an engineering workp2. 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 carried 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 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 19 or if things happen as shown on page 20 switch off the power and contact your dealer The air conditioner does not work at all Has the power switch been Has the timer been set in the Is there a power failure or a turned off ON position blown fuse M ON y OFF Poor cooling or heating Have you set the thermostat at a Is the air filter clean Not Did you leave any doors or suitable temperature clogged windows open suitable temperature Ge Poor cooling Is there any direct sunlight en Is t
3. ORIGINAL INSTRUCTIONS USER S MANUAL MITSUBISHI HEAVY INDUSTRIES LTD AIR CONDITIONER MANUEL DE LUTILISATEUR CLIMATISEUR ANWENDERHANDBUCH KLIMAGERAT ISTRUZIONI PER L USO SRR25ZJ S SRR35ZJ S CONDIZIONATORE D ARIA saigne YA MANUAL DEL PROPIETARIO ESZI ACONDICIONADOR DE AIRE GEBRUIKERSHANDLEIDING AIRCONDITIONING MANUAL DO UTILIZADOR APARELHO DE AR CONDICIONADO OAHTIE2 XPH2H2 KAIMATIZTIKO PYKOBOJCTBO MO OKCIVIYATALIUN KOHOMUMOHEP BOSLYXA KULLANIM KILAVUZU SPLIT KLIMA NEDERLANDS PORTUGUES C This air conditioner complies with EMC Directive 2004 108 EC LV Directive 2006 95 EC Este acondicionador de aire cumple con la directiva EMC 2004 108 EC LV Directiva 2006 95 EC Ce climatiseur est conforme la Directive EMC 2004 108 EC LV Directive 2006 95 EC Deze airconditioner voldoet aan EMC Directive 2004 108 EC LV Directive 2006 95 EC Dieses Kimagerat 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 aparelho de ar condicionado est em conformidade com a Directiva EMC 2004 108 EC e a Directiva LV 2006 95 EC AUTO TO K IUATIOTIK Eival OULPWVO HE TLIC TPO LAYPARM G TNG Odnyiac EMC 2004 108 EK kat tng Odnyiac LV 2006 95 EK RJD012A200G Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES LTD Air Conditioner To
4. Check the room Set time temp 60 mins before 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 ast JS LL ILI Set by the procedures on page 12 ON TIMER operation setting Set by the procedures on page 13 Set to OL 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 Ov ort coin With ON TIMER the air conditioner starts running Then ae 1 1 with OFF TIMER the air conditioner stops running Oor OFF With OFF TIMER the air conditioner stops running Then pz c 4 l with ON TIMER the air conditioner starts running 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 SLEEP TIMER When SLEEP TIMER is selected the set temperature is automatically adjusted after a while ensuring that the room is not too cold during cooling or too warm during heating e During cooling The preset temperature is lowered by 1 C at the start of SLEEP operation when the timer is set After that the temperature goes up by 1 C every an hour to become 1 C higher than the present temperature During heating The preset temperature is lowered by 1 C at the start of SLEEP operation
5. when the timer is set After that the temperature be comes 3 C lower in an hour and 6 C lower in two hours than the present temperature Airflow direction adjustment Adjusting up down air flow direction E Air flow direction adjustment can not be performed although a display will be changed if AIR FLOW button is pushed 14 HIGH POWER ECONOMY operation eECONO TEMP MITSUBISHI HEAVY INDUSTRIES LTD og EPA om 6 __ SLEEP CANCEL CLEAN 44 2 Concerning HIGH POWER operation If the air conditioner is not operating point the remote control toward the air conditioner and Press the ON OFF button Press the HI POWER ECONO button e 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 Po gt eco No display HIGH POWER ECONOMY Normal operation e 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 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 ro displays and the FAN SPEED display disappears Gk During the HIGH POWER operation the room temperature is not controlled When it causes an excessive cooling or heating press
6. Do not place anything containing wa ter like vases on top of the unit Water entering the unit could damage the insulation and therefore cause an electric shock e Do not install the system where the airflow direction is aimed directly at plants or animals This will damage their health e 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 e 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 i Safety precautions A CAUTION S e Do not touch the aluminum fins on the air heat exchanger It may result in injury e Do not place household electrical appliances or household items under neath the indoor or outdoor units Condensation falling from the unit may stain objects and cause accidents or electrical shock e Do not operate the system without the air filter It can cause malfunction of the system due to clogging of the heat exchanger e Do not shut off the power supply im mediately after stopping the opera tion Wait at least 5 minutes otherwise there is a risk of water leakage or breakdown eDo not control the system with main power switch It can cause fire or water leakage In addition the fan can start unexpectedly which can cause personal injury e Do not pour liquid into this unit and do
7. benzine or cleanser dry cloth etc OFF They may deform or scratch the unit Do not use the following articles e Hot water 40 C or more Do not touch the aluminum fins on the heat exchanger Cleaning the air filter Please request cleaning of the air filter from special contractor The air filter that comes with the unit cannot be washed 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 Set the temperature setting for approximately a half Make sure that there are no obstacles blocking the day at 30 C and perform the cooling operation airflow around the air intake and outlet openings of the indoor and outdoor units Dry the inside of the unit Check if there is no corrosion or rust on the base ji 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 Turning off the power supply will help saving energy consumption and cost Clean and reinstall the air filters The air filter that comes with the unit cannot be washed with water Clean both the indoor and outdoor units Remove batteries from the remote control Fe Ensure that the earth wiring is not snapped nor dis connected Ensure that the air filters a
8. 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 Global Warming Potential GWP 1975 ee AAA AA WAA AAA AA AA AA E E al aat TE TT T ae ee eg a ede ee e 7 Your Air Conditioning product may be marked with this symbol It means that waste electrical and electronic equipment WEEE as in directive 2012 j j ja 19 EU should not be mixed with general household waste Air conditioners m Should be treated at an authorized treatment facility for re use recycling and recovery and not be disposed of in the municipal waste stream Please contact the installer or local authority for more information ee KA AA AAA NAA AA UA SEE l This symbol printed in the batteries attached to your Air Conditioning product is information for end users according to the EU directive 2013 56 EU article 20 annex Il Batteries at their end of life should be disposed of separately from general 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 concent
9. not put water container on this unit Water entering the unit could damage the insulation and therefore cause an electric shock e f you operate the system together with a combustion appliance you must regularly ventilate the indoor air Insufficient ventilation may cause acci dents due to oxygen deficiency e Stand firmly on a stepladder or other stable object when removing the inlet panel and filters Failure to observe this may result in injury through insecure objects toppling over e When you clean the system stop the unit and turn off the power supply Never open the panel while the internal fan is rotating e Do not place objects near the out door 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 electrical parts and may cause a break down smoke or fire e Contact your dealer 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 components and cause leaks Damage smoke or fire may also happen if the detergent comes in con tact with electrical parts or the unit s motor e Stop the unit and turn off the power if you hear thunder or there is a danger of lightning lt may damage the unit e Do not let the foreign matters enter the indoor unit through the air out lets This may cause the dumper
10. the HI POWER ECONO button again to cancel the HIGH POWER operation HIGH POWER operation is not available during the DRY and the program timer operations When HIGH POWER operation is set after ON TIMER operation HIGH POWER operation will start from the set time Concerning ECONOMY operation e When the following operations are set HIGH POWER operation will be canceled When the HI POWER ECONO button is pressed again 2 When the operation mode is changed 3 When it has been 15 min since HIGH POWER operation has started e Not operable while the air conditioner is OFF 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 tioner runs in the following case When the air conditioner is stopped by ON OFF button during ECONOMY operation 2 When the air conditioner is stopped in SLEEP or OFF TIMER operation during ECONOMY operation 3 When CLEAN operation ends e When the following operations are set ECONOMY operation will be canceled When the HI POWER ECONO button is pressed again e Not operable while the air conditioner is OFF 15 H CLEAN operation should
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12. FP Page 8 EF O TIMER HI POWER light green 1 sec Illuminates during HIGH POWER operation F Page 16 HI POWER Blinks during heating preparation 1 5 sec KK A TIMER light yellow Illuminates during TIMER operation ECONO light orange Illuminates during ECONOMY operation e 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 2 079 224 Z c L L m L PI PI PIPI PI PI PI PIPI PI to j Ceiling recessed type SS Air outlet Local arrangements part Remote control signal receiver Air inlet grill Optional part or Local arrangements part Remote control signal receiver Air outlet Local arrangements part Air inlet grill Optional part or Local arrangements part Remote control handling The following cases signify exhausted batteries Replace old batteries with new ones e Receiving beep is not emitted when a signal is transmitted e Display fades away Gk Do not use old and new batteries together Remove the batteries when the remote control is not used for a long per
13. MITSUBISHI HEAVY INDUSTRIES LTD H If it is pressed while the unit is off SLEEP TIMER operation starts with the previous operation settings and the air conditioning is turned off after the set time elapses H If it is pressed while the unit is running ON OFF SB FAN SPEED MODE The air conditioner is turned off after the set time elapses Every time the button is pressed the display changes as follows ES HIPOWER AIR FLOW D AN lH c a CHH fs Units of one hour No indication im i canceled ILIH H ON A OFF Example You prefer it to stop after 7 hours e E CANCEL Setto VI CLEAN a etto J H 1 The timer light yellow is on e The unit stops after the set time lapses Changing of set time Set a new time by pressing SLEEP button How to cancel e Cannot be set at the same time with OFF TIMER Press the CANCEL button to turn off the SLEEP indicator OFF TIMER operation H 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 MITSUBISHI Press the OFF TIMER button OFF TIMER display OFF is blinking Press the GW or button Every time the YW button is pressed the display is switched in the order of 0 00 0 10 0 20 gt gt 1 00 1 10 gt Units o
14. alpitation tempo rarily If refrigerant unexpectedly leaks from the unit onto a fan heater stove hotplate or other heat source harmful gases could be generated Name of each part and its function INDOOR UNIT Air blows out of here Removes dust or dirt from the inlet air Page 17 Draws in the indoor air Refrigerant piping connection and electric wire Unit indication amp operation section Remote control signal receiver Drain hose Drains water from the indoor unit Wireless remote control mea i tab ga oO O KU C i ing gor Wireless remote control Wireless remote Wood screw Quantity 2 j Battery control holder for remote control holder mounting R03 AAA Micro x2 OUTDOOR UNIT On side amp rear surface UT Outdoor unit fan UL MINIERS Hi NORA hy X NSS Le 4 Y SS AN n _ _ Heat exchanger B Name of each part and its function Unit display section RUN HOT KEEP light green e lluminates during operation e Blinks when airflow stops due to the HOT KEEP and CLEAN operation Remote control signal receiver 1 5 sec HOT KEEP OFF U Unit ON OFF button 0 5 sec This button can be used for turning on off the Z 3 sec C RUN unit when remote control is not available CLEAN operation U l
15. ayed while the CP Page 11 air conditioner is turned off e Airflow direction adjustment procedure F Page 14 H Air temperature adjustment is possible even during automatic operation There are 6 levels of adjustment possible with the button or the button During automatic operation 24 C is preset both for heating and cooling When a change in temperature is required MITSUBISHI HEAVY INDUSTRIES LTD Press the or button When it is a little cold Press the A button H Each time the O button is pressed the switch over occurs in the following order 6 gt 5 1 gt 0 gt 1 6 When 6 is indicated even if the 9 button is pressed the indicator does not change eDECONO TEMP NV When it is a little hot Press the button the Y button H Each time the V button is pressed the switch over occurs in the following order SLEEP CANCEL 6 gt 5 1 gt 0 gt 1 6 When 6 is indicated even if the Y button is pressed the indicator does not change COO p o Remote Conroldspy SSCS Sang S aaa ea 20 21 42723 24 251281 CLEAN 44 remp C M You can choose the capacity of your air conditioner Press the FAN SPEED button when heating mode or cooling mode Operation capacity by your choice FAN SPEED AUTO HI MED lt gt LO Set automatically by microcomputer AUTO C S Move
16. be run after AUTO COOL and DRY operation to remove the moisture from inside the indoor unit and control the growth SELF CLEAN operation of mold and bacteria MITSUBISHI HEAVY INDUSTRIES LTD TEMP SLEEP CANCEL Se D CLEAN j ACL 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 a 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 OFF TIMER and SLEEP opera tions have finished The indoor unit fan runs for about two hours in CLEAN operation The RUN light illuminates during CLEAN operation 3 sec ON OFF li i _ 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 canceled Timer settings 2 HIGH POWER operations
17. can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved e Store the remote control out of reach of infants Failure to observe this may result in the batteries being swallowed or other accidents A CAUTION e Only use approved fuses Use of steel or copper wire instead of an approved fuse is strictly prohibited as it may cause a breakdown or fire eDo not handle the switches with wet hands This may cause an electric shock e Do not swing from the indoor unit If the indoor unit falls down you may get injured e 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 e You should not expose any combus tion appliance directly to the air stream of the air conditioner The appliance may then work inad equately eDo not wash the air conditioner with water This could cause an electric shock e The system should only be used for its original purpose and not for any thing else like for instance preserva tion of food plants or animals preci sion 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 e
18. e 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 e When power failure occurs the timer setting is canceled 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 According to handling directions of local arrangements part adjust the airflow direction properly Adjust the up down and left right airflow to ensure a steady room temperature Clean the filters frequently Clogged filters may block the airflow and cause less efficient operation Please request cleaning of the air filter from special contractor Operate the unit only when needed Use the timer properly to operate the unit only when needed ie 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 Keep heat source away when cooling Keep heat sources out of the room as much as possible Maintenance Do not spill any liquid Turn off the power supply am 4 Nr There s a danger of elec j ON YA tric shock It may deform or discolour the unit 3 Wipe the unit with a soft Petrol paint thinner
19. er indicator Example In the case the preferred room temperature is required at 8 00 Press the ON TIMER button ON TIMER indicator ON is blinking Press the DJ or button Every time the Y button is pressed the display is switched in the order of 0 00 0 10 0 20 gt gt 1 00 1 10 gt Units of ten minutes Every time the V button is pressed the display is switched in the order of 0 00 23 50 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 is set during operation Operation starts 5 to 60 minutes before the set time The timer light yellow goes out at the set time Make sure to press the button within 60 seconds from the last operation in step 2 other wise the setting is not completed The current time is not displayed during ON TIMER operation H Combined timer operation of SLEEP TIMER and ON TIMER MITSUBISHI HEAVY INDUSTRIES LTD SeranspeeD ON OFF ope AIR FLOW SLEEP CANCEL CLEAN 44 Changing of set time Set a new time by using the SLEEP or ON TIMER button Example When it is required to stop after 3 hours and then start operation at 8 00 near the set temperature H SLEEP TIMER setting Set by the procedures on page 12 Set to yu H ON TIMER o
20. f ten minutes ec ECONO Every time the V button is pressed the display is switched in the order of 0 00 gt 23 50 gt 23 40 gt gt 23 00 gt 22 50 gt Units of ten minutes na ON OFF TIMER Set at 22 30 SLEEP CANCEL Press the OFF TIMER button The display changes from blinking to steady lighting and the setting is complete The timer light yellow is on CLEAN Changing of set time The unit stops at the end of the set period of time Make sure to press the button within 60 seconds from the last operation in step 3 otherwise the setting is not completed Set a new time by using the OFF TIMER button 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 How to cancel Press the CANCEL button to turn off the timer display 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 F Page 14 ON TIMER operation can be set regardless of whether the air conditioner is running or not MITSUBISHI HEAVY INDUSTRIES LTD Seran speep ON OFF ope BA HI POWER AIR FLOW ecDECONO TEMP SLEEP CANCEL CLEAN 44 Changing of set time Set a new time by using the ON TIMER button How to cancel Press the CANCEL button to turn off the tim
21. function as well ON TIMER button ON This button selects ON TIMER operation Ce Page 13 SLEEP button This button selects to SLEEP operation Page 12 CLEAN switch This switch changes the CLEAN mode OPERATION MODE select button Each time the button pressed the m display is switched over in turn r 10 11 S f ONOFF MO Si CA lt ON OFF luminous button Press to start operation press again to stop AIR FLOW UP DOWN button This button changes the air flow up down direction This button is not used Air flow direction adjustment can not be MITSUBISHI HEAVY INDUSTRIES LTD performed F Page 14 This button selects OFF TIMER operation Page 12 CANCEL button This button cancels the ON timer OFF timer and SLEEP operation ACL switch This switch is for resetting microcomputer SLEEP CLEAN 4 and setting time F Page 8 r Page 16 e The above illustration shows all controls but in practice 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 only the relevant parts are shown 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
22. here a heat source in the Are there too many people in tering the room room the room ee ee ee ee ee AA Tarana 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 m mes um The unit does not restart immediately after you have stopped it RUN light is on Not operating oe a Airflow is not blown out when starting the HEATING operation RUN light blinks slowly 1 5 sec ON 0 5 sec OFF 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 Airflow is not blown out when starting the DRY operation RUN light is on Some steam escapes during COOL operation There is a slight smell You hear a slight gurgling sound gt Restart is blocked for 3 minutes after you have stopped the operation to protect the unit Please wait for three minutes DYA The three minute protection timer in the microcomputer automatically starts it up again 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 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 The indoor fa
23. ills and start dripping The noise means that the revolution speed of the compressor is increasing or decreasing 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 The RUN light illuminates during CLEAN operation Run light turns off when CLEAN operation ends This is the sound when operation of another indoor unit is stopped 19 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 The cable becomes extremely hot ously The covering of the cable is cracked Z CAUTION Fuse often blows ae 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 A switch does not activate properly You hear a strange noise during opera starts to malfunction tion 4 When abnormalities occur turn off the power supply The RUN and TIMER lights on the unit display section blink immediately and turn it on after 3 minutes Restart the quickly 0 5 sec ON 0 5 sec OFF and do not work 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 Hea
24. inoperable elf the power cord becomes damaged contact your dealer or a qualified en gineer If it is not replaced it may cause a breakdown or fire i Safety precautions E PRECAUTIONS FOR RELOCATION OR REPAIRS A WARNING S e Do not perform any repairs or modifications 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 Q e Consult your dealer for repairs Wrong repairs could cause an electric shock fire etc e n case the air conditioner is relo cated elsewhere contact your dealer or a professional fitter Faulty installation may cause water leakage electric shock fire etc e f 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 abnor mal circumstances may result in mal functioning electric shock fire etc e f the air conditioner fails to cool or warm the room it may have a refrig erant leakage Contact your dealer If refrigerant needs to be added check with your dealer for proper instructions If the refrigerant comes in contact with the bare skin it may cause cold injury If the refrigerant gas is inhaled exces sively it may cause deterioration of nerve function like dizziness and headache or deterioration of heart function like irregu lar heartbeat and heart p
25. iod The recommended effective period of a battery conforming to JIS or IEC should be 6 to 12 months with normal use If used longer or when an unspecified battery is used liquid may leak from the battery causing the remote control to malfunction 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 Pull out the cover and take out old batteries Insert new batteries R03 AAA Micro x2 Pay 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 Press the ACL switch with the properly tip of a ballpoint pen Close the cover For installing or removing the remote control move it up or The timer setting mode is displayed down in the holder CP Page 9 Warning note for remote control handling QQ Strictly prohibited e Do not go near high temperature e Do not leave the remote control ex e 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 Do not put any obstructing obsta e Do not s
26. lace the equipment may function poorly e 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 leak age of water electric shock or fire A CAUTION S e Do not install it where flammable gas may leak Gas leaks may cause fire e Depending on the place of installa e Make sure to install the drain hose tion an earth leakage breaker may be properly so that all the water is necessary drained out If you do not install an earth leakage Improper installation may lead to water breaker you may get an electric shock drop in the room resulting in wet furni ture e Make sure that the system has been properly earthed Earth cables should never be connected to a gas pipe water pipe lightning conductor or telephone earth cable Incorrect installation of the earth cable may produce an elec tric shock i Safety precautions E OPERATION PRECAUTIONS A WARNING S e Children shall not play with the appli ance e Do not expose yourself to the cooling air for a long period This could affect your physical condition and cause health problems e Cleaning and user maintenance shall not be made by children without su pervision e Do not insert anything into the air in let This may cause injury as the internal fan rotates at high speed Q e This appliance
27. ming on the surface of the indoor unit leading to water drips Inside humidity Characteristics of HEAT mode operation Mechanism and capacity of HEAT mode operation H Mechanism e 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 e It may take some time to supply hot air after turning on the air conditioner e If the outside temperature becomes extremely low it would be better to use an additional source of heating Defrosting If the outside temperature becomes low and humidity is high the heat exchanger in the outdoor unit may frost over which prevents efficient heating If this happens the automatic defrost function is activated and during defrosting the heating operation stops for 5 to 15 minutes during defrosting e Both indoor and outdoor fans stop and the RUN light blinks slowly 1 5 sec ON 0 5 sec OFF during defrosting e The outdoor unit may give off some steam during defrosting This is to help the defrosting process and is not a defect e The HEAT operation resumes as soon as defrosting has been completed 11 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 F Page 14 Press the SLEEP button
28. n may stop to prevent re evaporation of dehumified moisture and to save energy This may occur if the room s temperature and humidity are very high It disappears as soon as the temperature and humidity decrease Air blown out during operation may smell This is caused by tobacco or cosmetics adhering to the unit This is caused by refrigerating liquid moving within the unit You hear a slight cracking sound This is caused by heat expansion or contraction You hear a hissing or clicking sound After a power cut the unit does not restart even if power has been restored Remote control signals are not received Moisture may form on the air outlet grills Whistling noise is heard from the outdoor unit Fan won t stop immediately after unit operation was stopped RUN light stays on even though operation was stopped Sometimes a Shooooo sound might come for a short time from the unit that is turned off This is caused by the operation of the refrigerant control valves or electric components 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 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 If the unit is operated for a long time in high humidity moisture may form on the air outlet gr
29. peration setting Set by the above procedure mentioned in ON TIMER Ser to OON _ _ Perr LILILI The setting of the lighting of the timer light yellow of this unit is complete V e After the SLEEP TIMER set time has elapsed the operation stops and it starts from 5 to 60 minutes before the ON TIMER s set time e The timer light is turned off when ON TIMER set time comes How to cancel Press the CANCEL button to turn off the timer display ms e 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 MITSUBISHI HEAVY INDUSTRIES LTD _ OLN OFF O an de 30 lam 76 i eran speep ON OFF mope BA HI POWER AIR FLOW A eDECONO TEMP SLEEP CANCEL CLEAN 44 Comfort Start up In ON TIMER operation the unit starts the operation a little earlier so that the room can approach optimum temperature at ON time This is so called Comfort start up e Mechanism The room temperature is checked 60 minutes before the ON time Depending on the temperature at that time the operation starts 5 to 60 minutes before the timer is at ON The function is available for both COOL and HEAT operation mode including AUTO It does not work for DRY mode gt In COOL operation lt Stop Operation starts Operation Set temperature
30. pill any liquid on the e Do not place heavy objects on the cles between the remote control remote control remote control or step on it and the unit Operation failure with the remote control e Are the batteries running down e If the operation fails operate the unit with a j temporary operation function r Replacing the batteries above Contact your dealer to have the remote control Replace the batteries with new ones and retry the operation checked Temporary run operation e The unit ON OFF button on the unit operates ON OFF temporarily when the remote control is not used Operation program e OPERATION MODE AUTO H e FAN SPEED AUTO o Unit ON OFF button O RUN TIMER e Operation starts by pressing the unit ON OFF button it stops if you press O H POWER the button again O Econo e 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 FAN SPEED button Each time the button is pressed the mH display is switched over in turn ir Page 10 HI POWER ECONO button This button changes the HIGH POWER ECONOMY mode CP Page 15 TEMPERATURE button These buttons set the room temperature These buttons are used for setting the current time and timer
31. ration 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 collection or the recycling center OS a The emission sound pressure level from each Indoor and Outdoor unit is under 70 dB A contents Safety precaut1lONS ccccccccocccocececeeeees 2 OFF TIMER operation wee 12 Name of each part and its function 6 ON TIMER operation veve 13 Remote Control handling 8 SLEEP TIMER ON TIMER operation 13 Operation failure with the remote control 8 PROGRAM TIMER operation 14 Temporary TUM operation 8 Airflow direction adjustment 14 Operation and display section for remote HIGH POWER ECONOMY operation 15 COME Ol MAA AAA 9 SELF CLEAN operation 16 Current time setting v vevewa 9 Auto restart function 16 AUTO mode operation 10 Tips for effective operation 16 Temperature adjustment during AUTO 10 Maintenance vevsswmwwnnnnnnnnnennenew 17 FAN SPEED cccccccccececcccceccccrcscsisiccocoas 10 Proper installation
32. re clean The air filter that comes with the unit cannot be washed with water Turn on the power supply Insert batteries in the remote control 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 e Where there is a danger of leaking flammable gases e Where there is substantial splashing of oil Malfunctioning due to 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 Pay attention to operating noises 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
33. t 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 that 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 20 Self diagnosis function H Weare cons
34. tantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows RUN light e Broken heat exchanger sensor 1 wire poor connector 1 time flash Heat exchanger sensor 1 error connection 2 time flash Room temperature sensor error Broken room temperature sensor wire poor connector connection Broken heat exchanger sensor 3 wire poor connector 3 time flash Heat exchanger sensor 3 error connection Drain at reverse gradient Float switch defective 5 time flash Active filter voltage error Defective power supply 6 time flash Indoor fan motor error Defective fan motor poor connector connection Refrigerant is insufficient Refrigerant is insufficient leaking 7 time flash Closed service valve Closed serice valve Heat exchanger sensor 1 error Broken heat exchanger sensor 1 wire poor connector connection 4 time flash Drain error TIMER light ON TIMER light Outdoor temperature sensor error Broken outdoor sensor wire poor connector connection 1 time flash Outdoor heat exchanger fluid pipe Broken heat exchanger fluid pipe sensor wire poor connector 2 time flash sensor error connection MA Z 4 time flash Discharge pipe sensor error Broken discharge pipe sensor wire poor connector connection E 5 time flash 7 Suction pipe sensor error Broken suction pipe sensor wire poor connector connection Caen Gut Compressor locking open phase on compressor output 1
35. the HM mark to the preferred fan speed position Powerful operation with high capacity om Standard operation MED Energy saving operation LO e When changing FAN SPEED from HI to LO the sound of refrigerant flowing may be heard COOL HEAT DRY mode operation Point the remote control toward the air conditioner and ee gt Press the MODE select button MITSUBISHI Move the H mark to the required operation position 3K Cool 4 2 Heat Dry Press the ON OFF button YA TEMP Press the TEMP button va Press 9 or Y button for the preferred temperature Recommendation J gt CLEAN 24 Press the FAN SPEED button Set the fan speed as preferred Airflow direction adjustment procedure F Page 14 Press the ON OFF button e Incase air is not blown out when starting the heating operation F Pagel9 e The operation program can also be set or changed when the air conditioner is not in operation Air conditioner operable temperature setting H Use within the following operational range Operating outside of this range may result in the protection devices being activated preventing the unit from working Cooling operation Heating operation Approximately 15 to 46 C Approximately 15 to 24 C Approximately 18 to 32 C Approximately 15 to 30 C Below approximately 80 The long term use of the unit with a humidity level exceeding 80 may result in condensation for
36. time Set the clock to the right time Example Set to 10 30 Press the ACL switch MITSUBISHI HEAVY INDUSTRIES LTD Press with the tip of a ballpoint pen etc The time display blinks and can be set to the current time Press the DJ or button CL AIR FLOW Press the ON OFF button The display changes from blinking to steady lighting and the setting is complete Make sure to press the button within 60 seconds from the last operation in step 2 otherwise the time is not set SLEEP CANCEL CLEAN a e The timer operation works based on the time clock so please set it correctly e 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 MITSUBISHI HEAVY INDUSTRIES LTD Press MODE button Move the m mark to the Auto position 1 Point the remote control toward the air conditioner and Press the ON OFF button ecDECONO TEMP Press the ON OFF button a a A AUTO mode can be e Incase air is not blowing out during operated by simply the operation pressing the ON OFF Page 19 button SLEEP CANCEL CLEAN 4 e If you do not want the AUTO mode program change to COOL HEAT or DRY instead of AUTO e The current time and preset OPERA iia TION MODE are displ
37. time flash shortcircuit on power transistor closed service valve Broken power transistor broken compressor wire 2 time flash Trouble of outdoor unit Broken discharge pipe sensor wire poor connector connection ia Dicc 3 time flash Over current Overload operation overcharge Power transistor error Broken power transistor 4 time flash RUN light ON Gas shortage defective discharge pipe sensor closed service 5 time flash Over heat of compressor valve 6 time flash 7 time flash Keep flashing Cooling high pressure protection Gas over charge short circuit of outdoor unit Defective power supply Broken signal wire defective in outdoor Error of signal transmission f unit boards Outdoor fan motor error Defective fan motor poor connector connection Defective compressor RUN light 2 time flash Rotor lock Open phase on compressor Defective outdoor unit boards as OY 22 4 MITSUBISHI HEAVY INDUSTRIES LTD AIR CONDITIONING amp REFRIGERATION DIVISION 3 1 Asahi Nishibiwajima cho Kiyosu Aichi 452 8561 Japan http www mhi co jp MITSUBISHI HEAVY INDUSTRIES AIR CONDITIONING EUROPE LTD 7 Roundwood Avenue Stockley Park Uxbridge Middlesex UB11 1AX United Kingdom Tel 44 20 7025 2750 Fax 44 20 7025 2751 http www mhiae com MITSUBISHI HEAVY INDUSTRIES AIR CONDITIONERS AUSTRALIA PTY LTD 9C Commercial Road Kingsgrove NSW 2208 PO BOX 318 Kingsgrove NSW 1480 Tel 6
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