USER`S MANUAL
Contents
1. gt Unit operation switch Air outlet Air blows out of here Left right air flow adjustment louver e Page 9 Up down air flow direction adjustment flap cC Page 9 Drain hose Drains water from the dehumidified air Refrigerant piping connection electric flex SKM60ZG S SKM71ZG S Air inlet panel Draws in the indoor air Air filter Removes dust or dirt from the inlet air Page 17 Air cleaning filter Room temperature detector Unit operation switch Air outlet Air blows out of here Left right air flow adjustment louver Page 9 Up down air flow direction adjustment flap F Page 9 Drain hose Drains water from the dehumidified air Refrigerant piping connection electric flex ay Unit indication section SKM20ZG S SKM25ZG S SKM35ZG S SKM22ZG S SKM28ZG S SKM50ZG S TIMER light yellow Tlluminates during TIMER operation RUN HOT KEEP light green e I lluminates during operation HI POWER light green Illuminates during HIGH POWER operation 3D AUTO light green Illuminates during 3D AUTO operation Blinks at air flow stop due to the HOT KEEP and CLEAN o2. Wipe the unit with a soft dry cloth or use a vacuum cleaner ee paint thinner benzine or polishing agents Ifthe unit is very dirty wipe it with a cloth soaked in warm water etc They may deform or scratch the unit Cleaning the air inlet panel e Removal installation of air inlet panel The panel can be washed with water After washing with water wipe any moisture off the panel and dry out of direct sunlight sar and How to open the air inlet panel How to close the air inlet panel Place fingers at the recesses on both sides of the panel and pull up the panel Push both sides evenly and press further lightly at the center to this side so that it will be opened by about 60 degrees Removal installation of air inlet panel When removing the air inlet panel for internal cleaning or others open the Secure the upper edge of the air inlet panel by lightly pushing it in and then panel by 80 degrees and then pull it to this side close the panel 17 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 Dry the inside of the unit Make certain that there are no ob
3. a 21 Self diagnosis FUN CL OM sorea m u u S u u a Sk Q u u S ihe dde ed 22 ENGLISH Safety precautions e Before starting to use the system please read these Safety precautions carefully to ensure proper operation of the system The safety precautions are classified as A DANGER and A CAUTION Precautions as shown in the column A DANGER indicate that improper handling could have dramatic consequences like death serious injury etc Nevertheless 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 e Symbols which appear frequently in the text have the following meaning I ii Observe instructions with ii I S Strictly prohibited great care Provide positive earthing e When you have read the instruction manual please keep it near at hand for consultation 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 The system is meant for domestic residential etc use i The system mustbe installed by your dealer or a qualified pro fessional I If used in inferior environments such as an engineering It is not advisable to install the system yourself as faulty workplace the equipment may function poorly I hand
4. 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 7 k gt A EA EEE SS When faulty movement is observed when the ON OFF but The RUN and TIMER lights on the unit indication section ton is pressed even after turning off the power switch and blink quickly 0 5 sec ON 0 5 sec OFF and don t work restarting the operation after 3 minutes the faulty move ment does not disappear 3 minutes go by but why 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 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 e 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 e During simultaneous operation of air conditioner units operation modes may b
5. in LILI Set by the procedures on page 11 Set to The setting of the lighting of the timer light yellow of this unit is complete The time will be displayed on the remote control unit The display will change depending on the operational status ON OF OD Stopped Operating Changing of set time Set a new time by using the OFF TIMER or ON TIMER button Releasing procedure Press the CANCEL button to turn off the timer indicator About SLEEP operation When SLEEP operation is selected the room temperature is automatically controlled 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 2 C higher During heating Preset temperature is lowered by 1 C at the start of SLEEP operation when the timer is set After that the temperature is lowered by 1 C every 30 minutes to become 3 C lower in an hour and 6 C lower in two hours 12 HIGH POWER ECONOMY operation procedure If the air conditioner is not operating aim the remote control at the air conditioner Press the ON OFF button Press the HI POWER ECONO button WMO DIED e When the operating mode is AUTO COOL or HEAT Each time the HI POWER ECONO button is pressed the indicator is switched 1 in the order of
6. N a ye An alternative refrigerant R410A is used in this air conditioner When asking the dealer for service or inspection and maintenance explain the dealer about this matter L ee U U ee U U ee e ll S492 Please remember You cannot restart the unit immediately after you have stopped it RUN light is on Not operating R Restarting has been blocked for 3 minutes after you have stopped or after switching off the power during operation to protect the unit Please wait for three minutes The three minute protection timer in the microcomputer automatically starts up again Air is not blown out when starting the HEATING operation RUN light blinks slowly 1 5 sec ON 0 5 sec OFF Air flow has stopped to prevent blowing out of cold air until the indoor heat exchanger has warmed up 2 to 5 min HOT KEEP Air 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 Air 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 Th
7. connection 7 time flash TIMER light Closed service valve Heat exchanger sensor 1 error Closed service valve Disconnected sensor 1 time flash Outdoor temperature sensor error Broken outdoor sensor wire poor connector connection 2 time flash RUN light keeps flashing Outdoor heat exchanger fluid pipe sensor 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 6 time flash Power transistor sensor error Broken power transistor sensor wire poor connector connection 1 time flash Current cut Compressor locking open phase on compressor output shortcircuit on power transistor closed service valve 2 time flash RUN light ON 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 4 time flash Over heat of power transistor Cooling problem 5 time flash Over heat of compressor Gas shortage de
8. gt 0 10 gt 0 20 1 00 1 10 Units of ten minutes P H POWER Each time the button is pressed the indicator is switched in the order of DECONO TEMP JAIR FLOW a 3 0 00 23 50 23 40 gt gt 23 00 22 50 gt Units of ten minutes Set at 22 30 Press within 60 sec SLEEP CANCEL CLEAN Press the OFF TIMER button 2 4 The indication changes from blinking to steady lighting and the setting is complete The timer light yellow is on Changing of set time e The unit stops at the end of the set period of time Set a new time by using the OFF TIMER button Releasing procedure The present time is not displayed during OFF TIMER operation Unlike SLEEP operation automatic temperature adjustment is impossible during OFF TIMER operation Press the CANCEL button to turn off the timer indicator ON TIMER operation procedure HM Operation starts 5 to 60 minutes before the time that is set so that the room temperature reaches the optimum temperature at that time F Page 12 ON TIMER operation can be set regardless of whether the air conditioner is running or not Example In the case you wish to bring the temperature to nearly set temperature in at 8 00 Press the ON TIMER button MITSUBISHI ME HEAVY INDUSTRIES LTD ON TIMER indicator N is blinking Press the or button Each time the button is pressed the indicator is switched in t
9. 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 is picking up on the com pressor 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 blinks during CLEAN operation Run light turns off when CLEAN operation ends FAN operation will be performed even if COOL DRY or HEAT have been selected If one unit is operating in COOL mode while another is in operating in HEAT or any other different operation mode FAN mode operation will be implemented Individual operation modes need to be matched Sometimes a Shooooo sound might come for a short time from the unit that is turned off This is the sound when operation of another indoor unit is stopped 90 When to contact your distributor without delay 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 A CAUTION Fuse often blows a 2a i If the power cord becomes damaged ask your dealer or a qualified engineer to install the
10. or louver is operating it stops swinging at an angle Since this angle is memorized in the microcomputer the flap or louver will automatically be set at this angle when the next operation is started A DANGER e Avoid constant airflow to the body for hours on end A CAUTION e When in COOL or DRY operation do not operate for hours on end with the air flow blowing straight down Otherwise condensation may appear on the outlet grill and drip down Do not try to adjust the flaps and louvers by hand as the control angle may change or the flap or louver may not close properly MITSUBISHI HEAVY INDUSTI in the order of SLEEP CANCEL CLEAN 4 Press the 3D AUTO button When the operating is AUTO COOL or HEAT Each time the 3D AUTO button is pressed the indicator is switched 3DAUT0 gt A No indication 3D AUTO Normal operation Releasing procedure e Recommended angle of the flap when stopping 7a k Slant forward Z blowing COOL DRY Horizontal blowing Press the ON OFF button Press the 3D AUTO button to turn off the 3D AUTO indicator 3D AUTO operation is cancelled when you switch the operation program The 3D AUTO light illuminates during 3D AUTO operation If 3D AUTO operation is cancelled then the air flow direction changes to that used before 3D AUTO was set 3D AUTO operation is not available during the DRY and FAN SLEEP operation procedure H The unit
11. position Aim the remote control at the air conditioner Press the ON OFF button Press the ON OFF button AUTO mode can be operated by simply pressing the ON OFF button e If you don t want the AUTO mode program change to COOL HEAT DRY or FAN instead of AUTO F Page 8 E Air temperature adjustment is possible even during automatic operation There are 6 levels of adjustment possible with the button or the button MITSUBISHI CLEAN 4 When a change in temperature is desired Press the or button When it is a little cold Press the button E Each time the button is pressed the switch over occurs in the following order 6 gt 5 When 6 is indicated even if the button is pressed the indicator does not change When it is a little hot 1 gt 0 9 1 6 Press the V button About FAN SPEED E Each time the button is pressed the switch over occurs in the following order F6 SPAS 5 1 gt 0 gt 1 6 When 6 is indicated even if the button is pressed the indicator does not change H You can choose the capacity of your air conditioner when heating cooling or fan Operation capacity by your choice Press the FAN SPEED button Move the IM mark to the desirable fan speed position FAN SPEED Set automatically by microcomputer Powerful operat
12. stops automatically at the end of the set period of time The room temperature is automatically controlled when the set time lapses so that the room does not become too cold during cooling or too warm during heating CF Page 12 Press the SLEEP button H If this is pressed while the unit is off SLEEP operation starts with the previous operation settings and the air conditioning is turned off after the time that has been set passes H If this is pressed while the unit is running Each time the button is pressed the indication changes as follows amp e fu z CH Ja Units of one hour No indication e _ 4 cancelled ILI Ju Example You wish it to stop after 7 hours Set to Tha The timer light yellow is on e The unit stops at the end of the set period of time Changing of set time Set to a new time by using SLEEP button Releasing procedure Press the CANCEL button to turn off the SLEEP indicator Cannot be set at the same time as OFF TIMER WH The unit stops automatically at the end of the set period of time If it is stopped perform the operations starting with STEP 1 and if running start with STEP 2 Example You wish it to stop 22 30 Press the ON OFF button Press the OFF TIMER button OFF TIMER indicator OFF is blinking Press the or button Each time the button is pressed the indicator is switched in the order of 0 00
13. than the setting temperature for weak wind capacity during cooling or 2 5 C lower than that during heating The remote control indicates but the FAN SPEED indication is eraseed Gk It will go into ECONOMY operation the next time the air condi When the following operations are conducted ECONOMY opera tioner runs in the following instances tion will be canceled When the air conditioner is stopped using the ON OFF but When the HI POWER ECONO button is pressed again ton When the operation mode is changed DRY to FAN When the air conditioner is stopped in SLEEP or OFF TIMER When the 3D AUTO button is pressed operation When CLEAN operation ends e ECONOMY operation is not available during 3D AUTO operation Concerning CLEAN operation H CLEAN operation should be run after AUTO COOL and DRY operation to remove the moisture from inside the indoor unit and control the growth of mold and bacteria Press the CLEAN switch with the tip of a ballpoint pen ae MITSUBIS Each time the CLEAN switch is pressed the indicator is switched in the order of No indication CLEAN on CLEAN off Press the ON OFF button CLEAN operation is impossible after HEAT and FAN OFF TIMER and SLEEP operations have stopped The indoor unit fan runs for about two hours in CLEAN operation The RUN light blinks during CLEAN operation Pressing the SLEEP button during CLEAN operation cancels the CLEAN operation and
14. the ON TIMER s time SLEEP CANCEL CLEAN 4 Changing of set time Set a new time by using the SLEEP or ON TIMER button Releasing procedure Press the CANCEL button to turn off the timer indicator t PROGRAM TIMER operation procedure H The timer operations that consist of the combination of the timer being set at both on and off Once this has been set and operations started operations will commence and end at the same time every day as long as the ON OFF button is not pressed SLEEP CANCEL CLEAN About Amenity facilities Amenity facilities enable to start the operation a little earlier so that the room should approach optimum temperature at ON time when the operation is started by ON TIMER e Mechanism The room temperature is checked 60 minutes before the timer is at ON Depending on the tempera p In COOL operation 4 Stop Operation starts ture at that time the operation starts 5 to 60 minutes before the timer is at ON The Amenity facility only func tions for COOL and HEAT op eration mode including AUTO It does not work for DRY mode Operation Set temperature Check the room Set time temp 60 mins in advance Example When it is desired to stop at 22 30 and then start operation at 8 00 near the set temperature mg OFF TIMER operation setting OFF 2230 Set by the procedures on page 10 Set to ON TIMER operation setting Ow
15. the unit then sets itself to SLEEP operation This is not a function for removing mold germs or grime that have already adhered to the unit Emergency run operation 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 e FAN SPEED AUTO AIR FLOW AUTO Operation starts by pressing the unit ON OFF button it stops if you press the button again SKM20ZG S SKM28ZG S SKM60ZG S SKM22ZG S SKM35ZG S SKM71ZG S SKM25ZG S SKM50ZG S Unit ON OFF button 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 moving the air conditioner Installation location setting E Take the air conditioning unit s location into account and adjust the left right airflow range to maximize air conditioning P HI POWER DECONO TEMP SLEEP CANCEL CLEAN 4 WOO AIR FLOW If the air conditioning unit is running press the ON OFF button to stop The installation location setting cannot be made while the unit is running Press the AIR FLOW lt UP DOWN button and the AIRFLOW lt gt LEFT RIGHT button together for 5 seconds or more The installation location display illuminates Setting the air conditioning installation locatio
16. unit Do not place anything containing wa ter like vases on top of the unit S After a long period of use check the unit s support structure from time to time O If you operate the system together with a combustion appliance you must regularly ventilate the indoor air Do not place objects near the outdoor unit or allow leaves to gather around the unit Water entering the unit could dam age the insulation and therefore cause an electric shock If you don t repair any damage straightaway the unit may fall down and cause personal injury Insufficient ventilation may cause accidents due to oxygen deficiency If there are objects or leaves around the outdoor unit small animals may enter unit and contact electri cal parts resulting in break down emission of smoke or flame i PRECAUTIONS FOR TRANSFER OR REPAIRS Do not install the system at a place where the air stream of the blower is aimed directly at plants or animals This will damage their health Do not touch the aluminum fins on the air heat exchanger Failure to observe this may result in injury 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 top pling over Contact your dealer to clean inside the indoor unit do not attempt to do so yourself The use of a non approved detergent or improper was
17. G TIPOdLAaYPAPES THC Odnyiac EMC 88 396 kat ths Odnyiac LV 73 23 ths EOK RWA012A246 Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES LTD Air Conditioner To get the best long lasting performance 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 An alternative refrigerant R410A is used in this air conditioner When asking the dealer for service or inspection and maintenance explain the dealer about this matter ee a contents ALEC PLECAULLONSG uay usuta uka Qhi ATASAN ENA a qua as 2 Name of each part and its function 0 eee eeeeteeeeseeesecsececeesecseeesecseeeceeaeceseaecseseceeaecrseaeeseeseeeas 4 Operation and indication section for remote control a 6 Present time setting procedure l aa daa l E A qas esass 6 AUTO mode operation proge gl u uu uha sh aap sap as 7 Temperature adjustment during AUTO acrior a AEAN NEA ERES 7 About FAN SPEED ociera qis dinate A Aol Ae ae a ee ied 7 COOL HEAT DRY FAN mode operation procedure a 8 Air conditioner operating conditions nessieira a un ana E lu ski 8 Characteristics of HEAT mode operation nra 8 Air flow direction adjustment pPFo66d re__ u 2 S nun a
18. Lo 9 _ gt No indication HIGH POWER ECONOMY Normal operation e When the operating mode is DRY FAN or PROGRAM TIMER Each time the HI POWER ECONO button is pressed the indicator is switched in the order of SLEEP CANCEL eco No indication Ra CLEAN dg ECONOMY Normal operation Concerning HIGH POWER 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 eo indicates but the FAN SPEED indication is erased Gk e During the HIGH POWER operation the room temperature is not e When the following operations are conducted HIGH POWER op controlled When it causes an excessive cooling or heating press eration will be canceled the HI POWER ECONO button once more to cancel the HIGH When the HI POWER ECONO button is pressed again POWER operation When the operation mode is changed e HIGH POWER operation is not available during the DRY the When it has been 15 min since HIGH POWER operation program timer and 3D AUTO operations has started e During ON timer operation HIGH POWER operation will start When the 3D AUTO button is pressed when the ON time is reached Concerning ECONOMY operation Pressing the HI POWER ECONO button intlates a soft operation with the power suppressed in order to avoid an excessive cooling or heating The unit operates 1 5 C higher
19. The above illustration shows all controls but in practice only the relevant parts are shown Present time setting procedure H When inserting the batteries the present time is automatically set to time setting mode Example Set to 10 30 Press the ACL switch MITSUBISHI MCE Heavy INDUSTRIES LTD Press with the tip of a ballpoint pen etc The time indicator blinks and can be set to the current time Press the or button Set to 10 30 E HI POWER Press within 60 sec ECONO TEMP AIR FLOW Press the ON OFF button The indication changes from blinking to steady lighting and the setting is complete e The timer operation is set on the basis of the present time so please set it cor rectly e The remote control data is reset when the present time is set AUTO mode operation procedure H Automatically selects the operation mode COOL HEAT DRY depending on the room temperature when switched on ES HI POWER DECONO TEMP AIR FLOW gt O AUTO SLEEP CANCEL CLEAN Air flow direction adjustment procedure G Page 9 When the unit is not in AUTO mode Press MODE button Air is not blowing out during the op eration cC Page 20 Simultaneous automatic operation Page 21 When the included clean filter is in stalled the air conditioner will clean the air during automatic operation Move the IN mark to the Auto
20. USER S MANUAL MITSUBISHI HEAVY INDUSTRIES LTD AIR CONDITIONER ENGLISH MANUEL DE LUTILISATEUR s e c o o CLIMATISEUR ANWENDERHANDBUCH KLIMAGERAT SKM20ZG S SKM22Z2G S SKM25ZG S SKM28ZG S SKM35ZG S SKM50ZG S SKM60ZG S SKM71ZG S ISTRUZIONI PER LUSO CONDIZIONATORE D ARIA MANUAL DEL PROPIETARIO ACONDICIONADOR DE AIRE GEBRUIKERSHANDLEIDING AIRCONDITIONING MANUAL DO UTILIZADOR APARELHO DE AR CONDICIONADO OAHTIE2 XPH2H2 KAIMATIZTIKO PYKOBOACTBO MO SKCIJIYATALIUN C This air conditioner complies with EMC Directive 89 336 EEC LV Directive 73 23 EEC Ce climatiseur est conforme la Directive EMC 89 336 EEC LV Directive 73 23 EEC Dieses Kimagerat erf llt die EMC Direktiven 89 336 EEC LV Direktiven 73 23 EEC Questo condizionatore d aria conforme alla Direttiva EMC 89 336 EEC LV Direttiva 73 23 EEC KOHRVLIVOHEP BOSLYXA KULLANIM KILAVUZU SPLIT KLIMA Este acondicionador de aire cumple con la directiva EMC 89 336 EEC LV Directiva 73 23 EEC Deze airconditioner voldoet aan EMC Directive 89 336 EEC LV Directive 73 23 EEC Este aparelho de ar condicionado esta em conformidade com a Directiva EMC 88 336 CEE e a Directiva LV 72 23 CEE AUTO TO KAIWATLOTIKO eivat OULPWVO HE TI
21. a 40 A ee 9 3D AUTO Operation procedure u u uu uu Da Ska T 2090034493016450 E44 9 SLEEP operation procedure uu a R l us T Sm Si N 10 OFF TIMER operation procedure u L a us u u Qua au uku a sys 10 ON TIMER operation procedure zans u a A O ala asha upan assis 11 SLEEP operation ON TIMER operation procedure 11 PROGRAM TIMER operation procedure sosmes reirei irienn ii rai ieii 12 HIGH POWER ECONOMY operation procedUre iiciiciciiciciicicciccccicsccecsicecsesee 13 Conceming CLEAN Operations 2022248930056352 TA a ala 14 Emergency TUN operato esiaine ooann AE E E AERA EO ER 14 Installation location setting U L naa A EE E E S 15 Power blackout auto restart FUNCTION cesia aE N Aa 15 Remote control handling procedure eeceecseseescceseeseeeseeseeseeeseeeeceeseeseeeaeeeeeeseeeeeeeeeeeeeeaeeaes 16 When the operation fails with the remote control n 16 Opens INS aaa k gun Qu udeeden ste ieyeae 20 E ERR muu SSS D 16 NathieW yun nu E A T iha wap a AE S p ua Pd iets 20 ER 29900 17 Has the unit been installed correctly u l aa pukawan sha bas 19 Troubleshooting ss u m i u u h SA SAVA C A ARS 4 19 Please remem ber ag m u ince i aioli oe ane sede m ea 20 When to contact your distributor without delay ccceecceeseesseesceesceeeeeeeseeeaeeeeeeseeeeseeseeeeeees 21 About the Multiple Air conditioner
22. as it may cause a breakdown or fire This may cause an electric shock If the system falls down you may get injured Do not wash the air conditioner with wa ter Do not place a combustible insecticide or paint spray near the blower nor aim it directly at the system You should not expose any combus tion appliance directly to the air stream of the air conditioner This could cause an electric shock This may result in a fire The appliance may then work inad equately Safety precautions A CAUTION 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 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 beneath the indoor or outdoor units Condensation falling from the unit can stain objects and cause accidents or electrical shock When you clean the system stop the unit and turn off the power switch Never clean the unit while the internal fan is rotating Stop the unit and turn off power if you hear thunder or there is a danger of lightning Electrical storms can damage the
23. ched over in turn MITSUBISHI indicator is switched over in turn CF Page 7 Page 7 8 HI POWER ECONO button ON OFF luminous button This button changes the HIGH POWER te ELITA ki Press for starting operation press again ECONOMY mode D 14N y ar lt for stopping Page 13 TEMPERATURE button This button sets the room temperature This button changes the present time and TIMER time ON TIMER button oN AIR FLOW UP DOWN button This button changes the air flow up down mode CF Page 9 AIR FLOW LEFT RIGHT button This button changes the air flow left right mode DEcono TEMP ann Page 9 This button selects ON TIMER operation CF Page 11 SLEEP button This button selects to SLEEP operation C Page 10 CLEAN switch This switch changes the CLEAN mode Page 14 CANCEL button This button cancels the ON timer OFF timer and SLEEP operation 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 3D AUTO button T his button sets 3D AUTO operation Page 9 OFF TIMER button This button selects OFF TIMER operation CF Page 10 RESET switch A SEP Switch for resetting microcomputer and setting time C Page 16 e
24. e 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 Self diagnosis function H 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 7 Description of trouble Cause 1 time flash Heat exchanger sensor 1 error Broken heat exchanger sensor 1 wire poor connector connection Disconnected sensor 2 time flash TIMER light ON Room temperature sensor error Broken room temperature sensor wire poor connector connection 5 time flash Heat exchanger sensor 2 error Broken heat exchanger sensor 2 wire poor connector connection Disconnected sensor 6 time flash Indoor fan motor error Defective fan motor poor connector
25. e switched off e When power failure occurs the timer setting is cancelled Once power is resumed reset the timer 15 Remote control handling procedure The following cases signify exhausted batteries Replace old batteries with new ones e Receiving beep is not emitted when a signal is transmitted e Indicator fades away Remove back lid and take out old batteries Don t use old and new batteries together Remove the batteries when the remote control is not used for a long period The life 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 Insert new batteries R03 AAA Micro x2 2 Attention to the and O On the battery is printed its expected life This may be shorter than that of the air conditioner depending on the date of manufacture However the battery may still be in working order after expiry of its nominal life marks gt L G F H When the indicator shows any abnormal condition Press the reset switch with the tip of a ballpoint pen lt S SS D ZT Using the remote control holder Close back lid 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 reset switch wi
26. fective 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 RUN light 2 time flash Outdoor fan motor error Defective fan motor poor connector connection 2 time flash Rotor lock Defective compressor Open phase on compressor Defective outdoor unit boards 22 Fm MITSUBISHI HEAVY INDUSTRIES LTD AIR CONDITIONING amp REFRIGERATION SYSTEMS HEADQUARTERS 16 5 2 Chome Kounan Minato ku Tokyo 108 8215 Japan Fax 03 6716 5926 MITSUBISHI HEAVY INDUSTRIES EUROPE LTD AIR CONDITIONER DIVISION 3rd Floor Thavies Inn House 3 4 Holborn Circus London ECIN 2HA ENGLAND Phone 44 0 20 7842 8171 Fax 44 0 20 7842 8104
27. g we would recommend inspection and maintenance The air conditioner has 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 Troubleshooting 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 L ON g OFF Has the timer been set in the ON position Poor cooling or heating Is there a power failure or a blown fuse Have you set the thermostat at a suitable temperature suitable Ne temperature Is the air filter clean Not Poor cooling Did you leave any doors or windows open Is there any direct sunlight en tering the room W 1 77 440 Is there a heat source in the 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 20 or if things happen as shown on page 21 switch off the power and contact your dealer Dees ts ee Se NN a E A p ee a og ee Reni 4 le CEN AMARE ae Na
28. he order of 0 00 gt 0 10 gt 0 20 gt 1 00 1 10 Units of ten minutes Each time the button is pressed the indicator 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 within SLEEP CANCEL 60 sec Press the ON TIMER button CLEAN 4 amp 4 The indication changes from blinking to steady lighting and the setting is complete The timer light yellow is on e Operation starts 5 to 60 minutes before the set time Changing of set time e The TIMER light goes out at the set time Set a new time by using the ON TIMER button Releasing procedure Press the CANCEL button to turn off the timer indicator The present time is not displayed during ON TIMER operation H Combined timer operation of SLEEP operation and ON TIMER Example When it is desired to stop after 3 hours and then start operation at 8 00 near the set temperature MITSUBISHI H SLEEP operation setting MO heavy INDUSTRIES LTD Set by the procedures on page 10 Set to Ja m ON TIMER operation setting Set by the above mentioned ON TIMER operation procedure Set to Ow A og LILI The setting of the lighting of the timer light yellow of this unit is complete e After the SLEEP operation set time has elapsed the operation stops and it starts from 5 to 60 minutes before the ON TIMER s time e The timer light is not lit at
29. hen the air conditioner is not in operation Inside temperature 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 forming 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 The unit draws in heat from the cold outside air transfers it indoors and heats the room The heating capacity of the heat pump mechanism decreases when the outside air temperature gets colder e The hot air circulation system takes a while before warming up the room temperature e Ifthe outside temperature becomes extremely low it would be better to use an additional source of heating e If heating operation is performed when the outside temperature is high room temperature may become higher than the set temperature 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 defroster is activated and during defrosting the heating operation stops for 5 to 10 minutes Both indoor and outdoor fans stop and the RUN light green 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 he
30. hing method can damage the unit s plastic compo nents and cause leaks Damage smoke or fire can also result if the detergent comes in contact with electrical parts or the unit s motor A DANGER Consult your dealer for repairs to the system Wrong repairs could cause an electric shock fire etc If the air conditioner is moved else where contact your dealer or a pro fessional fitter Faulty installation may cause water leakage electric shock fire etc If the air conditioner fails to cool or warm it may have a refrigerant leak 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 products could be released If you notice anything abnormal smell of burning etc stop the system turn off the power switch and consult your dealer Continued use of the system in ab normal circumstances may result in malfunctioning electric shock fire ete Name of each part and its function SKM20ZG S SKM28ZG S SKM22ZG S SKM35ZG S SKM25ZG S SKM50ZG S Air Inlet panel Draws in the indoor air Air filter Removes dust or dirt from the inlet air Page 17 Air cleaning filter Room temperature detector
31. install the unit in any of the following places e Where there is a danger of leaking inflammable 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 there is any likelihood that vibration may be 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 and 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 Dependent upon service conditions and operating environment the inside of the air conditioner may become dirty after a number of seasons service 3 to 5 years This will reduce performance In addition to normal cleanin
32. ion with high capacity Standard operation Energy saving operation AUTO HI gt MED gt LO AUTO T A J HI MED When changing FAN SPEED from HI to LO the sound of refrigerant flowing may be heard COOL HEAT DRY FAN mode operation procedure Aim the remote control at the air conditioner Press the MODE select button Move the m mark to the desirable operation position X Cool Heat Dry Fan 1 Press the ON OFF button ES H POWER Press the TEMP button 2ECONO TEMP AIR FLOW 2 Press A or button for the desired temperature 3 Standard 6 C 28 C 22 C 24 C 24 z x SLEEP CANCEL CLEAN 4 Press the FAN SPEED button Set the fan speed as desired Press the ON OFF button Air is not blown out during the operation C Page 20 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 Air conditioner operating conditions B Use within the following operational range Operating outside of this range may result in the protection devices being activated preventing the unit from working CR Cooling operation Heating operation Outside temperature Approximately 15 to 43 C Approximately 15 to 24 C Program changing procedure Set the new program The operation program can also be set or changed w
33. irflow direction properly Operate the unit only when needed Generate little heat when cooling Adjust the up down and left right airflow to Use the timer properly to operate the unit Keep heat sources out of the room as much as ensure a steady room temperature only when needed possible Maintenance Before maintenance During the operational season Turn off the power switch Cleaning the air filter Standard interval is once every two week I T sm 1 Remove the air filter oN A Pull up to this side the air inlet panel Lightly hold the knobs at both sides and OFF lift a little to remove the panel to this side e Don t spill water Cleaning There s a danger or electric shock If the filter is very dirty clean it with warm water approx 30 C and dry it thoroughly A CAUTION e Don t clean the filters with boiling water Wipe the unit with a soft e Don t dry them over an open flame dry cloth e Pull them out gently e Do not touch the aluminum fins on the heat 3 Reinstall the air filter exchanger e Stand firmly on a stepladder or other stable e Holding firmly the filter at both sides as shown at right object when removing the inlet panel and filter and insert securely Operating without putting back the air filters will make Don t use the following articles the unit dusty and may cause damage e Hot water 40 C or more Cleaning the unit It may deform or discolour the unit
34. is 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 sticking to the unit You hear a slight gurgling sound 9 This is caused by liquid refrigerant moving within the piping of indoor unit Liquid refrigerant will be evaporated and become as gaseous re frigerant during passing through the pipe in order to absorb the heat inside the room You hear a slight cracking sound This is caused by expansion and contraction of plastic body Tempera ture change of plastic material due to compressor s alternative opera tion cause a slight cracking noise 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 you cannot re start even if power has been re stored unless you have the power blackout auto restart function The memory circuit of the microcomputer has been wiped out 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
35. ling may cause leakage of water electric shock or fire I I A CAUTION Do not install near places where inflammable gas may leak Depending on the place of installation a circuit breaker may be necessary I I I I Gas leaks may cause fire If you don t fit a circuit breaker you may cause an electric shock I I I Make sure that you drain the hose properly so that all the water has dripped out Make sure that the system has been properly earthed furniture water pipe lightning conductor or telephone earth cable Incor I I I Negligence may cause flooding in the room resulting in wet Earth cables should never be connected to a gas pipe municipal k i I rect installation of the earth cable may produce an electric shock I I I OPERATION PRECAUTIONS A DANGER Do not expose yourself to the cooling air for prolonged periods Do not insert anything into the air inlet Store the remote control out of reach of infants This could affect your physical condi tion and cause health problems This may cause injury as the inter nal fan rotates at high speed Failure to observe this may result in the batteries being swallowed or t l I I l other accidents l I A CAUTION Do not handle the switches with wet hands Only use approved fuses Don t swing from the system Use of steel or copper wire instead of an approved fuse is strictly forbidden
36. lp the defrosting process and is not a defect e The HEAT operation resumes as soon as defrosting has been completed 8 Air flow direction adjustment procedure H Up down direction can be adjusted with the AIRFLOW UP DOWN button on the remote control Each time when you press this button the mode changes as follows Change to AIRFLOW UP DOWN mode J V M gt G s QE G G Flap stopped lt i Peli Left right direction can be adjusted with the AIRFLOW LEFT RIGHT button on the remote control Each time when you press this button the mode changes as follows Change to AIRFLOW LEFT RIGHT mode E C3 Ez 44 7 44 7 44 7 7 Louver stopped C 4 414 4 4 Swing faa n gt ve When heating operation starts the cold air outlet is blocked so the flap and louver move to the horizontal center position and resume the position that was set after the warm air output begins When the compressor stops because the room temperature is higher than the temperature setting and it is in DEFROSTING operation the flap and louvers will be in the horizontal center position The air flow direction cannot be set in the instances above Change the air flow direction settings after the warm air starts flowing and it moves to the airflow direction that had been set MEMORY FLAP FLAP OR LOUVER STOPPED When you press the AIRFLOW UP DOWN or LEFT RIGHT button once while the flap
37. n Press the AIR FLOW a LEFT RIGHT button and adjust to the desired location Each time the AIR FLOW lt LEFT RIGHT button is pressed the indicator is switched in the order of Center Installation Right End Installation Left End Installation Press within Press the ON OFF button 60 sec The air conditioner s installation location is set Press within 60 seconds of setting the installation location while the installation location setting display illuminates Air conditioner installation location and airflow range The diagram below indicates the airflow ranges corresponding to the air conditioner s installation location Consider your room s layout and set the airflow range to maximize conditioning effectiveness 7 x wp Airflow range Airflow range Airflow range Left End Installation What is power blackout auto restart function Power blackout auto restart function is a function that records the operational status of the air conditioner immediately prior to it being switched off Center Installation Right End Installation by a power cut and then automatically resumes operations at that point after the power has been restored Timer settings The following settings will be cancelled HIGH POWER operations e The power blackout 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 b
38. peration 1 5 sec ON HOT KEEP RUN TIMER HIPOWER 3DAUTO OFF H 0 5 sec 3 sec Unit ON OFF button ON In emergencies this button can be used for turning on off the unit CLEAN operation when remote control is not available C OFF m Page 14 1 sec F Page 20 Remote control signal receiver g RUN HOT KEEP light green HI POWER light green e Illuminates during operation Tlluminates during HIGH POWER operation Blinks at air flow stop due to the HOT KEEP and CLEAN operation 3D AUTO light green 1 5 sec ON Tlluminates during 3D AUTO operation HOT KEEP OFF H 0 5 sec ON CLEAN operation OFF mae Remote control signal receiver 1 sec Page 20 TIMER light yellow Illuminates during TIMER operation OUTDOOR UNIT SCM40ZG S SCM48ZG S SCM80ZG S SCM45ZG S SCM60ZG S Air inlet on side amp rear surface INVERTER Air outlet 3 Natural enzyme filter Battery Green R03 AAA Micro x2 D y Wireless remote Wood screw Quantity 2 control holder Photocatalytic washable Wireless remote control for remote control holder mounting deodorizing filter Orange 25 Operation and indication section for remote control Operation section FAN SPEED button OPERATION MODE select button Each time the button is pushed the m Each time the button pushed the W indicator is swit
39. stacles blocking the air flow around the air intake and outlet openings of the indoor and outdoor units Stop the unit and turn off the power switch The unit uses appr 2W even when the power switch has been turned off during the off season for safety or for saving energy Check the installation base for corrosion or rust Clean and reinstall the air filters Ensure that nothing has snapped and that the earthed flex is not disconnected Clean both the indoor and outdoor units Ensure that the air filters are clean Remove batteries from the remote control Turn on the power switch Insert batteries in the remote control 1 Open the air inlet panel and remove the air filters 2 Remove the filter holders with the air cleaning filter installed in the folders from the air conditioner Remove the photocatalytic washable deodorizing filter from the filter holder and inspect the filter Periodically remove any dust or dirt from the photocatalytic washable deodoriz ing 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 nat
40. th the tip of a ballpoint pen For installing or removing the remote control move it up or The timer setting mode is indicated down in the holder Page 6 Warning note for remote control handling QO Strictly prohibited Don t go near high temperature e Don t leave the remote control ex Don t drop the remote control places such as an electric carpet posed to direct sunlight or other Handle with care or stove strong lighting Don t put any obstructing obsta e Don t spill water etc on the remote Do not place heavy objects on the cles between the remote control control remote control or step on it and the unit When the operation fails with the remote control e Are the batteries running down e Ifthe operation still fails handle as per emergency CF Page 14 run operation CF Replacing the batteries above Contact your dealer Replace the batteries with new ones and repeat the operation Operating hints WH Please observe the following for the most economic and comfortable use of your unit Set a suitable room temperature Clean the filters frequently Avoid direct sunlight and draught Excessively high or low temperatures are not Clogged filters may block the air flow and Cut out direct sunlight by drawing the cur good for your health and waste electricity cause less efficient operation tains or blinds when cooling Keep windows and doors shut except when ventilating Adjust the a
41. ural enzyme filter 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 en zyme 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 year of use However the actual replacement period may vary depending on the conditions in which the filter is used Do not dispose of the filter holders They are reused 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 right or left side of the air conditioner 5 Install the air filters and closed the air inlet panel A CAUTION Do not expose natural enzyme filters to direct sunlight for an extended period The bacteriolytic effect will be lost For replacement the air cleaning filter contact your dealer 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 es Has the unit been installed correctly Is there any obstruction in front of the indoor unit preventing proper ventilation and functioning Don t
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