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1. Case 1 P 4 7 X Remove the group wire of the Group wire terminal blocks A and B of the Remote changed indoor unit and then controller install the remote controller only Indoor unit P C board Indoor unit Service P C board of the unit to be changed Case 2 7 Group wire 77 Remote Remove CN41 connectors of the indoor units other controller than the units to be changed in the same group P C board parts layout drawing lt MCC 1510 gt DIP switch 5 01 SW02 EEPROM IC10 Method of DIP switch setting Selected content 2 series At shipment Terminator resistor for central control OFF Without terminator Remote controller A B selection OFF selection Custom Multi model selection ON Multi model No use OFF 1 Match to set up contents of P C board before replacement 120 FILE NO SVM 05052 03 3 Writing of the setup contents to EEPROM The contents of EEPROM installed on the service board have been set up at shipment from the factory 1 Push 5 CL _ and 2 buttons of the remote controller at the same time for 4 seconds or more 7 C rn sponded with No in Remote controller as shown below picture The UNIT No ALL is displayed In this time
2. Start 1 button Push this button to start the air conditioner 2 Mode select button MODE Select Auto 3 Temperature button Set the desired temperature In case of cooling start the operation after approx 1 minute In case of heating the operation mode is selected in accordance with the room temperature and operation starts after approximately 3 to 5 minutes When you select the Auto mode it is unnecessary to set the fan speed The FAN speed display will show AUTO and the fan speed will be automatically controlled After the heating operation has stopped FAN operation may continue for approx 30 seconds When the room temperature reaches the set temperature and the outdoor unit stops the super low wind is discharged and the air volume decreases excessively During defrost operation the fan stops so that cool air is not discharged and HEAT READY is displayed If the Auto mode is uncomfortable you can select the desired conditions manually When restarting the operation after stop When restarting the operation immediately after stop the air conditioner does not operate for approx 3 minutes to protect the machine Stop Push button Push this button again to stop the air conditioner 14 FILE NO SVM 05052 3 6 TIMER Operation A type of timer operation can be selected from the following three types
3. fex 03 ye Ke dsiq CECE is _youms fex 5195 z o1 dn JO SEUJ qns 0191 29000 preoq L Joopu N 0411009 111 FILE NO SVM 05052 8 1 2 Case of Wireless Remote Controller Kit Connected yun Japeey dnoj6 BOW ay e qej euuoo 8 XEN yun Joopino yun Joopino yun 100pino lV3H episino osuss TOI presaj 9 Jojoui uej Joopuj Josues YL 618 OOW Od Aeldsip 105 95 10 5 0 91 000 Od ule HE yun 100pu uondo 101 U09 2 112 FILE NO SVM 05052 9 HOWTO REPLACE MAIN PARTS 9 1 Indoor Unit Part name Front panel Procedure 1 Stop operation of the air conditioner and then pull out the power supply plug from the plug socket 2 Open the suction grille and then take off fi
4. Cleaning of main unit remote controller CAUTION Wipe them with soft and dry cloth cloth dampened with cold water may be used on the indoor unit if it is very dirty Never use a damp cloth on the main unit and remote controller Do not use a chemically treated duster for wiping or leave such materials on the unit for long It may damage or fade the surface of the unit Do not use Do not use benzine thinner polishing powder or similar solvents for cleaning These may cause the plastic surface to crack or deform 21 FILE NO SVM 05052 3 13 When the Following Symptoms are Found Check the points described below before asking repair servicing Check again It is not a failure Outdoor unit White misty cold air or water is out Sometimes noise Pushu is heard Fan of the outdoor unit stops automatically and performs defrost operation Solenoid valve works when defrost operation starts or finishes Indoor unit Swish sound is heard sometimes Slight Pishi sound is heard Discharge air smells The operation lamp flashes STANDBY indication is lit Sound or cool air is output from the stand by indoor unit When power of the air conditioner is turned on Ticktock sound is heard Operates or stops automatically When the operation has started during the operation o
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6. i FILTER reset Push the FILTER switch after cleaning FILTER display disappears WARNING Be sure to turn off the main power switch prior to the maintenance Please do not intend to do the daily maintenance and or Air Filter cleaning by yourself Cleaning of the air filter and other parts of the air filter involves dangerous work in high places so be sure to have a service person do it Do not attempt it yourself lt Daily maintenance gt Open the air inlet grille Lift the air inlet grille up to the horizontal position Take hold of the left and right handles of the air filter and lift it up slightly then pull downward to take it out from the filter holder Filter holder For cleaning of air filter use a cleaner or brush clean If stain is heavy it is effective to wash the air filter in tepid water mixed with neutral detergent After washing rinse it well and dry it in the shade Install again the air filter which has been cleaned 20 FILE NO SVM 05052 Return the air filter Insert the upper portion of air filter confirming to fit it is right and left edges on the indoor unit until it is firmly set Close the air inlet gril
7. SELECT ZONE gt us eye JU l c se C J v 1 Confirmation and check When a trouble occurred on the air conditioner the check code and the indoor unit No are displayed on the display section of the remote controller The check code is displayed while the air conditioner operates If the display disappeared operate the air conditioner and check the error based upon the following Confir mation of error history Unit No display Alarm display UNIT No A Ja Oo ee Dp P 2 2 Alternate flashing display I R C No 2 Confirmation of error history When a trouble occurred on the air conditioner the error history can be confirmed with the following proce dure Up to 4 error histories are stored in memory This history can be confirmed from either operating or stop 3 When selecting flash the group number if there is the alarm history the UNIT number and the latest alarm history are displayed alternately n this time the temperature cannot be set up 4 To confirm the alarm history other than the latest one push temp set 4 vw to select Item code 01 to 04 GROUP 5 To confirm the alarm in the other group push and C gt to select the group number Do not push cL button because all the alarm histories of the currently selected group are deleted 6 To finish the service check pu
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20. 2 Is case thermo circuit normal 1 Connector connection 2 Cabling Repair case thermo circuit 3 I F board Note 1 Note 1 1 Case thermo is usually closed 2 Operation temperature of case thermo is 120 C Are service valves of NO gas pipe and liquid pipe of outdoor unit fully opened Open service valves fully Are outdoor PMV1 2 normal 1 Connector connection 2 Cabling 3 Coil 4 Valve body 5 I F P C board Operation starts Are SV41 and Valve circuits normal 1 Misinstallation installation and connector connection of SV41 and SV42 2 Leakage from SV41 42 circuit NO Connector CN300 301 White Repair outdoor PMV NO Correct SV4 valve circuits SV4 valve Connector CN311 Blue Does not refrigerant YES bypass from discharge of suction through 4 way valve Check 4 way valve NO NO 15 compressor normal Note 2 Compressor error YES Note 2 Check the following items mainly 1 Existence of abnormal sound and abnormal vibration during operation at start time 2 Abnormal overheat of case during operation or stop Never touch with hands 3 Current of compressor lead during operation or starting No rapid current change Refrigerant shortage clogging pipe breakage After checking there is no slogging or pipe breakage charge refrigerant again 7
21. ewou jo eui A snoeuejinuis GOMS pue POMS sues Ajeuuouqe peddois jun 100pino Ue eui Jjepeeu Joopino Jo Aejdsip uo peKejdsip s 823 yey uonipuoo sapun 10 puooes JO POMS ueuw Joopino Jo epoo eui lt juaiuoAuo2 jun peAieoai Jepeeu Joopino dois Jo ON 4 1 100pino pJeoq Od 100pino uo 10 uonoeuuoo eui YOOUD uonoeuuooSIp JO 1Iun Jejui JO xX99u5 uo paun eui 91 y dnyoeg si yeubis BUJA SEM YIM eui JUB SUOD 10 peuunjaJ Jou sem euis eu dois pejoeuuoo peseeJoeq Ajeuuou JO ON sseJppe eui dn jes jou uonisod wa 49949 dn jas sesseJppe uonipuoo uonoejep 1043 dois snigis dnjes sseJppe
22. Joopino apoo 4294 uonisod pa 09 0q 10 LAN IV apoo qns epoo yoay9 Aejdsip apoo yooyD 45 FILE NO SVM 05052 10149 O d Y99490 uoneJedo esneo x29u2 1055 Y09049 0 0220 amod 5 pue jueJno Je o uonoejep jueuno 1ejeAu dois uone1edo senunuoo yun 94 umopyeaig 1 epis 2 Josseidwoy 20 epis J0sseJduio 10 Jepeau y jo eseo juo dois 4 1 100pino 95100 Jamod Y90049 eDeyo yOoyD jou pip 4 1 O d 400pinO L dois 1049 NOHd33 100pino 10118 INOHd33 100put Y29049 Ajjeuuou eje1edo jou pip Qd 100pu sdojs Ajuo Joopu Joopu 4 1 100pino 10119 JOSUOS JOSUAS jo uonoeuuoo Y99049 jo dois EY lt 105 95 0192 SEM 10595
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24. Is outdoor PMV normal 1 Connector connection 2 Cabling 3 Coil 4 Valve body 5 Outdoor I F P C board Are characteristics of TD2 sensor resistance normal YES NO Connectors CN300 301 White Repair outdoor PMV NO Replace TD2 sensor Refer to outdoor unit temperature sensor characteristics 4 Does not discharge refrigerant gas bypass to suction side through 4 way valve NO Check 4 way valve SVA circuit 1 Are not SV41 and SV42 valve coils installed reversely 2 Is there no leakage through SV42 circuit Is not an indoor unit of different refrigerant line connected YES Refrigerant shortage clogging pipe breakage NO Correct installation of valve coil Replace SV42 valve NO Correct cabling Check with miscabling check function of outdoor unit Check there is no pipe breakage and then recharge refrigerant 102 FILE NO SVM 05052 Check code name Check code name Cause of operation P19 08 4 way valve operation error 1 4 way valve error Current code 2 TS1 sensor TE1 sensor error 3 Pd sensor Ps sensor error 4 TE sensor TL sensor misconnection Sub code Detected outdoor unit No Is 4 way valve coil NO Correct connector connection connector connected 4 way valve coil CN317 YES Correct connector connection TS1 sensor CN504 Are TS1 TE1 Pd Ps s
25. Communication error between Remote controller inter unit cable error Current code AI NET indoor and remote controller Indoor power error Detected at remote controller side indoor PC board error Remote controller address setup error Remote controller P C board error Is the inter unit cable of NO Correct inter unit cable of remote controllers A B normal remote controller Is there no disconnection or YES connector contact error on harness out of terminal block of indoor unit Correct connector connection and check circuit cabling NO E NO Is a group control operation YES Is power of each indoor unit turned on NO Check power connection status of indoor unit Turn on power again YES Is power applied to remote controller AB terminals Approx DC18V YES NO Check indoor P C board Defect Replace YES Change one to main other to sub Remote controller address connector Is setup of two remote controllers without main remote controller NO Check remote controller P C board Defect Replace 56 FILE NO SVM 05052 Check code Check code name Cause of operation E02 Remote controller sending error Signal could not be sent to indoor unit Current code AI NET Check the communication wire of the remote controller Itis not displayed on 7 segment display of the central control controller
26. Max 4 outdoor units are connectable for one system Is the number of the connected outdoor units 4 or less YES Correct connection of the communication line Is the communication line between outdoor units correctly connected YES Check I F P C board 91 FILE NO SVM 05052 Check code name Check code name Cause of operation L29 CF IPDU quantity error Incorrect model setup in service for I F Current code board Communication error between IPDU fan IPDU and I F IPDU fan IPDU I F board error Sub code 01 IPDU1 error 02 IPDU error 03 IPDU1 2 error 04 Fan IPDU error 05 IPDU1 fan IPDU error 06 IPDU2 fan IPDU error 07 All IPDU error or disconnection of communication line between IPDU I F P C board or outdoor I F P C board error Is jumper setup of outdoor I F P C board correct Jumpers 7 8 9 ON YES Is communication connector between IPDU and I F P C board connected NO Is there no disconnection of communication line between IPDU and I F P C board NO Is there voltage fluctuation between 4 and 5 pins of CN600 on I F PC board Measurement by tester DCO to 5V 5 pin GND NO Correct connection of connector YES Correct connection of connector YES Replace communication line NO I F P C board error Is there voltage fluctuation between NO 3 and 5 pins of CN600 on I F boa
27. When indoor unit with priority is duplicated this check code is displayed on the unit other than the setup indoor unit and outdoor unit As only one indoor unit with priority is valid change the setup _ code Check code Checkcodename code Checkcodename Cause of operation of Cause of operation L07 99 Group line in individual indoor unit The group line is connected in the Current code AI NET individual indoor unit Check setup item code DN 12 13 and 14 addresses There is individual indoor unit NO DN12 Line address DN13 Indoor address DN14 Group address Correct indoor group address Is there group cabling NO Check indoor P C board Failure Replace 89 FILE NO SVM 05052 Check code name Check code name Cause of operation L08 99 Indoor group address unset Indoor address unset Current code NO a Turn on the power of indoor units YES Disconnect connectors between U1 U2 and U3 U4 Turn on the power of outdoor unit again Clear addresses Refer to Address clear Re execute address setup Refer to Address setup Note This code is displayed when the power is turned on at the first time after installation Because the address is not yet set up Checkcodename code name Check code name Cause of operation L09 46 Indoor cap
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29. Is wire connector connection on IPDU board normal YES YES Replace fuse and Is there no fusing of AC30A fuse IPDU PC board NO NO Is compressor normal Replace compressor YES 15 smoothing condenser normal 1500pF 350 YES Check capacity coming out external appearance Replace IPDU board 107 FILE NO SVM 05052 Check code name Check code name Cause of operation P29 16 Compressor position 1 Cable connector connection error Current code detective circuit error 2 error 3 IPDU board error Sub code 01 Compressor 1 side 02 Compressor 2 side Are connector connection NO Check and correct circuit and cables and wiring normal such as cabling to compressor etc YES YES Is not grounded Compressor error Replace NO YES Is not winding shorted Is winding resistance 0 6 to 1 2W Compressor error Replace NO YES Is not winding opened Compressor error Replace NO Check IPDU board Failure Replace Check code name Check code name Cause of operation P31 47 Other indoor error Other indoor unit in the group is abnormal Current code AI NET Group follower unit error When the header unit of the group detected E03 L03 L07 108 error the follower unit of the group displays P31 error and stops There are no check code display and alarm record of
30. PRESET operation To operate the air conditioner with the setting memorized by the MEMO button 1 Press the PRESET button The setting memo rized with the MEMO button will be indicated and the air conditioner operates with regards to the setting The lamp green on the display panel of the indoor unit goes on and operation starts after approximately 3 minutes Initial setting MODE AUTO Temperature 22 29 7 885 ama o METH Eua PRESET Lean Lauro O O O RESET CLOCK CHECK Ee FILE NO SVM 05052 6 APPLIED CONTROL 6 1 Indoor Unit 6 1 1 Setup of Selecting Function in Indoor Unit Be sure to Execute Setup by a Wired Remote Controller lt Procedure gt Execute the setup operation while the unit stops 1 Push 5 ser cL 142 buttons simultaneously for 4 seconds or more The firstly displayed unit No indicates the header indoor unit address in the group control In this time the fan of the selected indoor unit is turned on 2 Every pushing _UNIT_ button the indoor unit numbers in the group control are successively displayed In this time the fan of the selected indoor unit only is turned on 3 Specify the item code DN using the setup temperature _a_Jand _v_ buttons 4
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32. 01 Comp 1 side 02 Comp 2 side Current detect circuit system error IPDU Comp 1 case thermo operation VF Low pressure protective operation VF Oil level down detective protection VF 01 TK1 sensor error 02 TK2 sensor error 03 TK3 sensor error 04 TK4 sensor error Oil level detective temp sensor error VF Comp 2 case thermo operation VF 01 TK1 oil circuit system error 02 TK2 oil circuit system error 03 oil circuit system error 04 TK4 oil circuit system error Oil level detective circuit error Magnet switch error Overcurrent relay operation VF MG SW Overcurrent relay Duplicated indoor header units Indoor Duplicated outdoor line addresses VF Duplicated indoor units with priority Displayed on indoor unit with priority VF No of indoor units with priority Duplicated indoor units with priority Displayed in unit other than indoor unit with priority VF Group line in individual indoor unit Indoor Indoor group Address unset Indoor VF Indoor capacity unset Indoor Outdoor capacity unset VF Duplicated central control addresses AI NET Indoor aja jaina jajajajaja oe aja jajajajaja Over No of connected outdoor units VF 01 IPDU1 error 02 IPDU2 error 03 IPDU3 error 04 Fan IPDU error 05 IPDU1 Fan IPDU error 06 IPDU2 Fan IPDU error 07 All I
33. 5 While the heating operation is ready the flap automatically moves upward Filter sign display None in wireless type Provided in the separately laid type TCB AX21E 1 The operation time of the indoor fan is integrated and stored in memory and the filter exchange signal is sent to the remote controller to display on the remote controller LCD after the specified time 150H 2 When the filter reset signal is received form the remote controller time of the integrated timer is cleared In this time if the specified time has passed the measured time is reset and LCD display disappears 26 QY and amp display Operation and heating stand by Outline of specifications Operation standby Display on wired type 1 P05 is one of displays of power wire missingand when it s detected COOL DRY operation cannot be performed because the other indoor unit is under HEAT operation HEAT operation cannot be performed because COOL priority is set Outdoor I F P C board SW11 bit 1 is ON and the other indoor unit is under COOL DRY opera tion FAN operation cannot be performed because the system performs Heat oil Refrigerant recovery operation There is a unit in which indoor overflow P10 is detected There is a unit in which interlock alarm P23 is de tected 2 The above indoor units unavailable to operate waits under condition of thermostat OFF
34. OFF timer The operation stops when the time of timer has reached the set time Repeat OFF timer Every time the operation stops after the set time has passed ON timer The operation starts when the time of timer has reached the set time Timer operation l 2 1 Push TIMER SET button The timer display type changes for every push of the button OFF timer Repeat OFF timer SET DATA and display flashes No display 2 Push 5 to select SET TIME For every push of button the set time increases in the unit of 0 5 hr 30 minutes The maximum set time is 72 0 hr For every push of v button the set time decreases in the unit of 0 5 hr 30 minutes The minimum set time is 0 5 hr 3 Push SET button SET DATA display disappears and display goes on When ON timer is activated time is displayed and after time of the timer has been up displays other than ON disappear Cancel of timer operation 4 Push CL button TIMER display disappears NOTICE When the operation stops after the timer reached the preset time the Repeat OFF timer resumes the operation by pushing button and stops the operation after the time of the timer has reached the set time 15 FILE NO SVM 05052 3 7 Re Installation DANGER Ask the dealer or an installation professional to re install the air conditio
35. YES Correct communication line Is connection of CNO1 connector on outdoor I F P C board normal Correct cabling of cable connector YES NO Is power of indoor turned on Turn on power of indoor unit ES Did a power failure occur Clear the check code YES YES Is there no noise etc Check noise etc and eliminate it if any NO Check indoor P C board NOTE Defect Replace 1 When signal is not sent for a certain period from the indoor unit which has used to send signals normally 206 is displayed 59 FILE NO SVM 05052 Check code Check code name Cause of operation E07 H Indoor Outdoor 1 Indoor outdoor communication end terminal Current code Al NET communication circuit error resistance setup error Detected at outdoor side 2 Indoor outdoor communication connection error Is setup of end terminal resistance NO of outdoor unit normal YES Correct setup of end YES terminal resistance Is inter unit cable U1 U2 between indoor and outdoor short circuited Is connection of inter unit cable between indoor and outdoor correct YES Correct short circuit Correct communication line Is F400 fuse on I F board opened Is there no error on power cable to outdoor unit NO YES Check conduction with tester Correct power cable Turn on power to start oper
36. pipe NO Check I F P C board 99 Check code name Check code name P15 AE Gas leak detection Current code TS condition Sub code 01 FILE NO SVM 05052 Cause of operation Outdoor unit service valve closed Outdoor PMV error TS1 sensor error Refrigerant shortage clogging refrigerant circuit 4 way valve error SV4 circuit error Are service valves at gas and NO liquid side fully opened YES Is outdoor PMV normal 1 Connector connection NO 2 Cabling Open service valves fully 3 Coil 4 Valve body Connectors CN300 301 White 5 Outdoor I F P C board Repair outdoor PMV Replace TS1 sensor characteristics 2 Are characteristics of NO TS1 sensor resistance normal Refer to outdoor temp sensor YES Does not discharge YES refrigerant gas bypass to suction side Check and replace 4 way valve and coil through 4 way valve Repair SV41 and SV42 circuits Is there no leakage of NO SV41 and 42 valve circuits YES Check there is no clogging and 100 Coil valve body disconnection of cable etc pipe breakage and then recharge refrigerant Check code name Check code name P15 AE Current code Gas leak detection TD condition Sub code 02 NO FILE NO SVM 05052 Cause of operation Outdoor unit service valve closed Outdoor PMV error TD sensor error SV4
37. 05 IPDU1 fan IPDU error 06 IPDU2 fan IPDU error 07 All IPDU error or communication line error between IPDU I F P C boards or outdoor I F P C board error If the fan IPDU is abnormal be sure to check the voltage output on the fan power supply P C board Is communication connector between IPDU and I F P C board connected YES Is there no disconnection on communication line between IPDU and I F P C board NO NO Correct connection of connector YES Replace communication line Is there voltage deflection between NO 4 and 5 pin of CN600 on I F P C board Measurement with tester DCO to 5V 5 pins GND I F P C board error Is there voltage deflection between 3 and 5 pin of CN600 on I F P C board Measurement with tester DCO to 5V 5 pins GND Replace defective IPDU P C board NO I F P C board error All IPDU No 1 No 2 and three fan IPDU do not return communication 68 FILE NO SVM 05052 Check code Check code name Cause of operation 201 OF Indoor TCJ sensor error TCJ sensor Open Short Current code AI NET NO Correct connection of connector NO Replace TCJ sensor ndoor unit temperature sensor characteristics See Characteristics 2 Is TCJ sensor connector CN102 Yellow on indoor P C board normally connected YES Are characteristics of TCJ sensor resistance value normal YES Check indoor main P C
38. 4 For the earth protection use a vacuum pump for air purge 5 R410A refrigerant is azeotropic mixture type refrigerant Therefore use liquid type to charge the refrigerant If using gas for charging composition of the refrigerant changes and then characteristics of the air condi tioner change 3 Pipe Materials For the refrigerant pipes copper pipe and joints are mainly used It is necessary to select the most appropriate pipes to conform to the standard Use clean material in which impurities adhere inside of pipe or joint to a minimum 1 Copper pipe lt Piping gt The pipe thickness flare finishing size flare nut and others differ according to a refrigerant type When using a long copper pipe for R410A it is recommended to select Copper or copper base pipe without seam and one with bonded oil amount 40mg 10m or less Also do not use crushed deformed discolored especially inside pipes Impurities cause clogging of expansion valves and capillary tubes lt Flare nut gt Use the flare nuts which are attached to the air conditioner unit 2 Joint The flare joint and socket joint are used for joints of the copper pipe The joints are rarely used for installation of the air conditioner However clear impurities when using them 4 Tools 1 Required Tools for R410A FILE NO SVM 05052 Mixing of different types of oil may cause a trouble such as generation of sludge clogging of capillary etc
39. HEAT standby Display on remote controller 1 HEAT thermostat is OFF During HEAT operation the fan rotates with lower air speed than one specified in order to prevent discharge of cold draft or stops including case that defrost operation is being performed HEAT operation cannot be performed because COOL priority is set Outdoor I F P C board SW11 bit 1 is ON and the other indoor unit is under COOL DRY opera tion 2 HEAT standby is displayed until the above conditions are released FILE NO SVM 05052 Remarks QY goes on Not displayed on the wired type amp goes on Selection of central control mode 1 The contents which can be changed on the remote controller at indoor unit side can be selected by setup at the central controller side 2 In case of operation from TCC LINK central controller TCB SC642TLE etc Central control mode 1 Cannot operate Central control mode 2 Cannot operate stop select mode set up temp Central control mode 3 Cannot select mode set up temp Central control mode 4 Cannot select mode 27 Display at RBC AMT21E wired remote controller side While mode is the central control mode CENTRAL lights on the display part of the remote controller Display at Wireless type side While the central control mode is set up the contents possible to be operated are same though the display lamp
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41. P22 1A Outdoor fan IPDU error Fan lock Current code Fan IPDU PC board error Overload cause External cause such as blast Fan IPDU power board error Sub code 0 IGBT short circuit 1 Position detect circuit error 3 Motor lock error 4 Motor current error detected C TH sensor error Heat sink overheat D TH sensor error Ex Vdc error Are cable connector NO connection on fan IPDU and power board A ssy normal Correct cable connector connection YES YES Is not outdoor fan motor locked Replace motor NO Is there no loosening on fixation YES between fan IPDU and heat sink Retightening of screws etc YES YES Is sub code of outdoor I F P C board 0 Replace fan IPDU NO Is there no problem YES such as stuffing or blast blowing to discharge port of outdoor fan Check fan IPDU Correct cause of overload 106 FILE NO SVM 05052 Check code name Check code name Cause of operation P26 14 G Tr short circuit protection error 1 Outdoor unit power error Current code 2 IPDU error Cable connection error 3 Compressor error 4 IPDU PC board error Sub code 01 Compressor 1 side 02 Compressor 2 side Correct power line NO Is power voltage of outdoor unit normal YES NO Correct connection of wire connector
42. Y Choke Check clogging of oil equalization circuit Replace faulty part 4 Reference When refrigerant stagnates in compressor shell the oil level shortage may be judged 81 FILE NO SVM 05052 In some cases it may be difficult to check the leakage of clogging in the following condition of refrigerant stagnation in low ambient temperature condition In this case take a longer operating time prior to check Criterion Discharge temperature of TD1 and TD2 are 60 C or higher 1 a Leakage check for SV3A valve For multiple outdoor unit system Turn off the power supply take off connector of SV3A valve and then start a test operation after power ON Check the temperature change at secondary side of SV3A valve during operation in the figure If temperature is raised it is a leakage of SV3A valve Replace SV3A valve b Leakage check for SV3C valve Turn off the power supply take off connector of SV3C valve and then start a test operation after power ON After operation for several minutes check temperature at secondary side of SV3C valve in the figure If temperature is high equivalent to discharge temperature TD it is a leakage of SV3C valve Replace SV3C valve Even if there is leakage from SV3C valve does not occur temperature of SV3C valve at secondary side rises during operation When the checked temperature is equivalent to TD temperature it is a leakage of SV3C valve Replace SV
43. 2 to 10 minutes to increase the heating efficiency During defrost operation the fan of the indoor unit stops 3 minutes protection When restarting the operation just after the operation has been stopped or the main power switch has turned on the outdoor unit does not work for approx 3 minutes in order to protect the air conditioner Power failure If a power failure occurred during operation all operations stop When the power is returned after a power failure the operation lamp notifies the power ON by flashing operation lamp on the remote controller When restarting the operation push button again Fan rotation in stopped unit In heating operation even in the stopped indoor unit the fan rotates once for several minutes per approx an hour when the other indoor unit is operating to protect the air conditioner FILE NO SVM 05052 Protective device High pressure switch This device stops automatically an operation when excessive force is applied on the air conditioner If the protective device works the operation stops and the operation lamp flashes When the protective device works the indication and the check code are displayed on the display section of the remote controller In the following cases the protective device may work In cooling operation The suction port or discharge port of the outdoor unit is closed A strong wind continuously blows to the discharge port of the outdoor
44. B3 CURE section Me 0 Aa N 7 1 DATA display Displayed during setup of the timer 2 Operation mode select display The selected operation mode is displayed 3 CHECK display Displayed while the protective device works or a trouble occurs 4 Timer time display Time of the timer is displayed When a trouble occurs the check code is displayed 5 Timer SETIN setup display When pushing the Timer SETIN button the display of the timer is selected in order of OFF 22 OFF repeat OFF timer gt ON No display 6 Filter display 11 AR If FILTER 7 TEST run display Displayed during a test run is displayed clean the air filter 8 Flap position display Displays flap position 9 SWING display Displayed during up down movement of the flap 11 10 11 12 13 14 15 14 Set up temperature display The selected set up temp is displayed Remote controller sensor display Displayed while the sensor of the remote controller is used PRE HEAT display Displayed when the heating operation starts or defrost operation is carried out While this indication is displayed the indoor fan stops or the mode enters in LOW No function display Displayed if there is no function even if the button is push
45. Is communication cabling between QE remote controller and indoor unit correct Correct the communication cabling Sending circuit error inside of the remote controller Replace remote controller Check code Check code name Cause of operation E03 97 Communication error between No communication from remote controller and Current code indoor and remote controller communication adaptor Detected at indoor side This error is detected when the indoor unit cannot receive a signal from the remote controller Check communication cables of the remote controllers A and B As communication is impossible this check code E03 is not displayed on the main remote controller It is displayed on TCC LINK central controller 57 FILE NO SVM 05052 Check code Check code name Cause of operation E04 04 Indoor Outdoor Power of outdoor unit was firstly turned on Current code communication circuit error Connection error of communication line Detected at indoor side between indoor and outdoor End terminal resistance setup error on communication between indoor and outdoor Address setup error Switch setup error of wall type P C board NO Turn on power again in order of indoor unit outdoor unit NO Correct inter unit cable Was power turned on in order of indoor unit amp outdoor unit YES Is connection U1 U2 terminals of indoor outdoor in
46. Q E un Drawing port of fan motor lead wires should be this position Determine the lead drawing port position so that motor band Right does not come to contact with fan motor drawing port Cross flow fan 1 Perform works of items and 2 Take off fixing screws 2 pcs at the left side of the end plate of the heat exchanger and then take off fixing screws 2 pcs of the bearing base 3 Make the left side of the heat exchanger float slightly and then remove the bearing base 4 Loosen set screw of the cross flow fan from the discharge port 5 Take off fixing screws 2 pcs to remove the motor band Right Set screw Cross flow fan Fixing screws Remove set screw from gap of thermal insulator Motor band Right 116 FILE NO SVM 05052 Part name Procedure Remarks Cross flow fan 6 Slide the fan motor rightward to remove it 7 Take off fixing screws 2 pcs from fixing support at right side of the heat ex changer 8 Lift up the left side of the heat exchanger toward you and then remove the cross flow fan lt Caution to reassembling gt a When assembling the bearing base check the drain pipe is surely incorporated to the rear plate Otherwise water leak may be caused When assembling the fan motor remove fan motor rubber shaft center side mount it in the position in the following figure and then mount the fan motor Mo
47. TK2 TK3 and TK4 sensors of the error detected NO reset power supply and start operation Correct miswiring and misinstallation unit correctly connected Is there no sensor detached or misinstallation Are characteristics of TK1 to TK4 NO TK2 CN515 TK3 CN516 TK1 CN514 TK4 CN523 of error detected unit normal Check gas leak of all outdoor units Characteristics 4 YES Sensor error Replace Specify gas leak position and repair it in the same line and check soaked oil No error Check refrigerant stagnation in compressor Correct refrigerant stagnation in compressor reset power supply and start the operation Check oil level judgment of each unit Are all oil levels correct YES Clear cause of stagnation Indoor outdoor PMV error Cause of refrigerant stagnation discharge check valve error etc Refrigerant stagnation 7 segmen SW01 02 NO Recharging refill oil 1 Check leakage of valves SV3A SV3C and clogging SV3B SV3E Replace faulty part No leakage or clogging 2 Check clogging of oil return circuit from oil separator Capillary tube strainer Check clogging of SV3D valve Replace faulty part No choke Check clogging of solenoid valves SV3A SV3C of all outdoor units in the same line 3 Replace faulty part t display with No choke 03 1 15 1
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49. a other Remote controller address connector NO Check remote controller P C board Failure Replace 61 Check code E12 42 Check code name Automatic address Current code AI NET start error FILE NO SVM 05052 Cause of operation When indoor automatic address started other refrigerant circuit system was setting automatic address When outdoor automatic address started the indoor automatic address was being set Sub code 02 Sub code 01 Communication between indoor and outdoor 02 Communication between outdoor units Are U1 U2 U3 and U4 connectors connected YES Disconnect connector connection of U1 U2 U3 and U4 Check code E15 42 Current code Check code name NO Is communication line between indoor and outdoor normal YES NO Turn on power of outdoor unit again No corresponding indoor unit during automatic address Set up address again Refer to Address setup Cause of operation Communication line connection error between indoor and outdoor Indoor power system error Noise from surrounding devices Power failure Indoor P C board error Correct communication line Is connection of CN40 connector on indoor P C board correct YES Is connection of CNO1 NO Correct connection of connector connector on I F P C
50. board Defect Replace Check code Check code name Cause of operation 202 0d Indoor TC2 sensor error TC2 sensor Open Short Current code AI NET NO Correct connection of connector NO Replace TC2 sensor ndoor unit temperature sensor characteristics See Characteristics 2 Is TC2 sensor connector CN101 Blue on indoor P C board normally connected YES Are characteristics of TC2 sensor resistance value normal YES Check indoor main P C board Defect Replace 69 FILE NO SVM 05052 Checkcode Check code name Cause of operation 203 93 Indoor TC1 sensor error TC1 sensor Open Short Current code Is 1 sensor connector CN100 Brown on indoor P C board normally connected Correct connection ofc nnector Are characteristics of TC1 sensor NO YES Indoor unit temperature sensor characteristics Check indoor main P C board Defect Replace See Characteristics 2 Checkcode _ code Check code name Cause of operation 204 19 1 TD1 sensor Open Short Current code This error code means detection of Open Short of TD1 sensor Check disconnection of circuit for connection of connector TD1 sensor CN502 White and characteristics of sensor resistance value Refer to Outdoor unit temperature sensor characteristics If sensor is normal replace outdoor I F bo
51. the item code DN is displayed The fan of the indoor unit operates and the flap starts swinging if any 2 Using the set temperature buttons the item code DN can be moved up and down one by one 2 3 First set the capacity of the indoor unit Setting the capacity writes the data at shipment from the factory in EEPROM 1 Using the set temperature A _ _w__ buttons set to the item code DN 2 2 Using the timer time 2 v buttons set the capacity 3 For PARTES 0005 for MMK AP0122H Refer to the attached table button OK when the display goes 4 Z button to return to usual stop status 5 Approx 1 minute is required to start handling of the remote controller 4 Next write the contents that have been written at the installation such as the address data into EEPROM Repeat the above procedure 1 5 Using the set temperature a _ __w__ buttons set 7 to the item code DN 2 Setup of lighting time of filter sign 6 The contents of the displayed setup data in this time should be agreed with the contents in the previous memorandum in C11 1 If data disagree change the displayed setup data to that in the previous memorandum by the timer time 4 7 buttons and then push ser 2 There is nothing to do when data agrees 7 Using the set temperature A J w buttons change the item code DN As same as the above 6 check the contents of the setup data and then change
52. Controls under cool in heating operation Recovers refrigerant oil in cooling operation Recovers refrigerant oil in heating operation 2 3 4 Temp sensor Connector CN104 2P White 1 Detects indoor suction temperature Connector CN100 3P Brown 1 Controls PMV super heat in cooling operation Connector CN101 2P Blue 1 Controls PMV under cool in heating operation Connector CN102 2P Yellow 1 Controls PMV super heat in cooling operation 23 FILE NO SVM 05052 5 CONTROL OUTLINE 5 1 Indoor Unit Control Specifications Outline of specifications Remarks Power supply 1 Distinction of outdoor unit Judgment of outdoor unit is reset When the power supply is reset the outdoor units are Exchange of cooling only distinguished and control is exchanged according to the unit distinctive results of standard Gheckesde dear model with the flex model When the power supply is reset the check code is also reset once If an abnormal status which the check code appears after Start Stop button of the remote controller has been pushed continues the check code is displayed again on the remote controller Operation Based upon the operation select command from the remote controller or central controller select the operation mode is se lected Remote controller command Control outline Stops air conditioner Fan operation Cooling operat
53. High pressure gauge pressure gauge Connected to t Y indoor unit ous dud closed V Gauge mn _ 9 manifold Main Center unit pipe a 7 Brazed 9 O Ss Reducing lt gt port _ 26 4 valve Fully Copper pipe ORO tightened HD n B Service port mI Valve fully closed Fully liquid side B Nitrogen tightened D gas 06 4 Copper pipe Valve fully closed balance Connected to other terminal units 4mm hexagonal wrench is required D Set the equipment so that liquid refrigerant can be charged When using a cylinder with siphon pipe liquid can be charged without inversing the cylinder Cylinder with siphon Gauge manifold OUTDOOR unit cylinder Gauge manifold Cylinder without siphon OUTDOOR unit Electronic Electronic balance balance R410A refrigerant is consisted with HFC mixed refrigerant Therefore if the refrigerant gas is charged the composition of the charged refrigerant changes and characteristics of the equipment changes 6 Environment Use Vacuum pump method for an air purge Discharge of air in the connecting pipe in installation time Do not discharge flon gas into the air to protect the earth environment Using the vacuum pump method clear the remained air Nitrogen etc in
54. Is outdoor PMV normal 1 Connector connection 2 Cabling 3 Coil 4 Valve body 5 Outdoor I F P C board NO Connector CN300 301 White Repair outdoor PMV YES Are characteristics of Replace TD1 sensor 2 TD1 sensor resistance normal Refer to Outdoor unit temperature YES sensor characteristics 4 Does not discharge refrigerant gas bypass to suction side through 4 way valve NO Check 4 way valve YES SV4 circuit 1 Are not SV41 and SV42 valve coils installed reversely 2 Ils there no leakage through SV41 circuit NO Correct installation of valve coil or replace SV41 valve NO Are not indoor units of different refrigerant circuit connected YES YES Correct wiring Check with miswiring check function of outdoor unit Refrigerant shortage clogging pipe breakage Check there is no pipe breakage and then recharge the refrigerant 94 FILE NO SVM 05052 Check code name Check code name Cause of operation P04 21 Actuation of high pressure SW High pressure SW error Current code Service valve closed Pd sensor error Indoor outdoor fan error Indoor outdoor PMV choke Indoor outdoor heat exchanger clogging air short circuit SV2 circuit error SV4 circuit error SV5 circuit error 10 Discharge line check valve malfunction 11 Refrigerant overcharge Sub
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56. an operation mode with the MODE button pod peg cel gg nus push ao i and oe Heat pump model changes in the order shown on the right z 8 S In HEAT 3 mode if the room temperature reaches to the set temperature the outdoor unit stops and the air flow becomes LOW and the air volume decreases In the defrost mode the fan stops so that cool air is not discharged and PRE DEF is displayed 3 Select air volume with FAN button One push of the button and the display Sse sd E changes in the order shown on the right When air volume is AUTO 9 air volume differs according to the temperature difference between set temp and room temp In DRY y mode AUTO is displayed and the air volume is LOW In heating operation if the room temperature is not heated sufficiently with VOLUME LOW operation select MED 8 or HIGH operation 4 Determine the set up temperature by pushing the TEMP A _ _ button Stop Push button The operation lamp goes off and the operation stops 13 FILE NO SVM 05052 3 5 Automatic Operation Super Heat Recovery Type Only When you set the air conditioner in amp mode or switch over from AUTO operation because of some settings change it will automatically select either cooling heating or fan only operation depending on the indoor tem perature REMOTE CONTROLLE
57. board of header outdoor unit correct YES Correct connection of connector YES Is there any connection error of power cable Correct power cable Set up address again after YES Did a power failure occur NO resetting power supply YES Is there no noise source NO Set up address again after resetting power supply 62 Eliminate noise FILE NO SVM 05052 Check code Check code name Cause of operation E16 89 Connected indoor units 1 There are 48 or more connected indoor units Current code capacity over 2 Capacity over of total connected indoor units 3 Incorrect setup of indoor outdoor capacity Sub code 00 Capacity over 49 to 64 of connected units Is backup operation of outdoor unit being set up TERRA ce C NO Excessive indoor units are connected 2 Is No of connected indoor units correct Correct miscabling YES NO Is setup of indoor unit HP correct Correct HP setup YES Is total capacity of connected indoor units within 13596 For a service P C board check outdoor HP setup Set up jumper 9 10 11 and 12 NG Set capacity of connected indoor units within 13596 of outdoor units Set up outdoor HP Refer How to exchange interface P C board Check outdoor interface P C board A ssy 1 Setup of no detection of capacity over Turn SWO9 Bit 2 on I F P C board
58. board of the outdoor unit Turn off power of the outdoor unit within 2 minutes after short circuiting Open fully the handle Low of the gauge manifold and then turn on the power of vacuum pump for vacuuming When the pressure has lowered until indication of the compound gauge pointed 0 1MPa 76cmHg open fully the handle Low and turn off the power of vacuum pump D Never charge the refrigerant over the specified amount Do not charge the additional refrigerant If charging refrigerant additionally when refrigerant gas leaks the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified stan dard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury Leave it as it is for 1 to 2 minutes and check the indicator of the compound gauge does not return Set the refrigerant cylinder on the electron balance connect the charge hose to connecting ports of the cylinder and the electron gauge and then charge the liquid refrigerant from the service port at liquid side Shield with the gauge manifold so that refrigerant does not flow to gas side Charge the refrigerant as below Low
59. circuit error Refrigerant shortage clogging refrigerant circuit Are service valves of gas and liquid sides fully opened YES Is outdoor PMV normal 1 Connector connection 2 Cabling NO Open service valves fully 3 Coil 4 Valve body 5 Outdoor I F P C board Connectors CN300 301 White YES NO Repair outdoor PMV Refer to outdoor temp sensor characteristics 4 Are characteristics of TD1 TD2 sensor resistance normal YES Is SV4 valve circuit normal Coil misinstallation valve leakage YES NO NO Replace TD1 or TD2 sensor Repair SV41 and SV42 circuits Coil valve body coil i disconnection of cable etc function of outdoor unit Are not indoor units in different refrigerant circuit connected YES Refrigerant shortage clogging pipe breakage 101 Check with miscabling check Correct cabling Check there is no clogging and pipe breakage and then recharge refrigerant FILE NO SVM 05052 Check code name Check code name Cause of operation P17 bb Discharge temp TD2 error Outdoor unit service valve closed Current code Outdoor PMV error TD sensor error Refrigerant shortage clogging of refrigerant circuit 4 way valve error SV4 circuit leakage misinstallation NO Are service valves of gas and liquid sides fully opened Open service valves fully YES
60. classification of communication incorrect setup system classification incorrect setup system Block display Indoor board Outdoor Communication Incorrect setup 4 ways Indoor protection board Cycle Communication Outdoor protection Sensor Compressor protection etc lt Display in wired remote controller gt Display Classification A goes on Unused UNIT No Check code Operation lamp Green flash Central control system error Communication system error lt Display on sensor part in wireless remote controller gt Block display of combination of D 00 amp Each sensor error Failure Compressor protective system error lt Display on 7 segment in outdoor unit gt Unused Unit No and check code are displayed Setup error Other errors e In a case of error with auxiliary code the check code and the Protective device operation auxiliary code are displayed alternately 7 3 Troubleshooting by Check Display on Remote Controller 7 3 1 In Case of Main Remote Controller RBC AMT21E 1 Confirmation and check CO When a trouble occurred on the air conditioner the check code and Ze the indoor unit No are displayed on the display section of the remote UNIT Nop controller 2 T The check code is displayed while the air conditioner operates 7 If the display disappeared operate the air conditioner and Chstk code Indoor uni
61. code 01 Compressor 1 side 02 Compressor 2 side Note High pressure SW is normally closed B contact NO NO Does high pressure SW operate Is circuit cabling normal Check and correct cabling YES YES Check parts Failure Replace Are parts of high pressure SW normal YES NO Is service valve fully opened Open service valve fully YES Reset power supply and start a test Cooling To Check I F P C board operation corresponded to the season Heating Failure Replace i NO Are characteristics of high pressure sensor normal Replace the high pressure sensor Cooling operation Does cooling outdoor fan normally operate NO F Repair faulty parts YES Connector connection fan IPDU fan motor wiring Is there a cause to interfere operation of heat exchanger of outdoor unit 1 Heat exchanger clogging 2 Air short circuit NO Is SV2 circuit normal YES Eliminate the interfered causes NO Repair SV2 circuit Coil error clogging disconnection of wiring etc 95 FILE NO SVM 05052 Repair SV4 circuit Is SV4 circuit normal Coil error clogging disconnection of wiring etc YES Heating operation Does heating indoor fan normally operate NO Refrigerant overcharge clogging pipe breakage abnormal overload condition Is connector connection
62. detective circuit error 1 Detachment of TK3 sensor miscabling Current code AI NET Sub code 03 characteristics error of resistance value Is not TK3 sensor come off Error of SV3C valve circuit periphery Check capillary clogging strainer clogging Refrigerant stagnation in compressor shell YES Correct miscabling misinstallation Is there no miscabling or misinstallation N YES Te Cele on TK1 TK2 TK3 TK4 sensors TK3 CN516 Start a test operation in COOL or HEAT mode Replace clogged part Capillary TK4 CN523 Are characteristics of TK3 sensor NO resistance value normal e Sensor error gt Replace Outdoor unit temp sensor characteristics 4 YES After power reset check capillary choke of SV3C valve bypass Y TK3 sensor temp is displayed on 7 segment display with SW01 02 03 1 13 2 Y Check sensor temp approx 10 minutes after compressor 2 has operated If low temperature continues approximately outside temp or temperature does not almost change a clogging of parallel capillary is considered No error SV3E valve TK3 Error Check the 9 SV3E valve Replace SV3E valve Note 1 Refer to item HO7 error No error Check I F P C board 86 FILE NO SVM 05052 Check code name Check code name Cause of operation H16 d7 TK4 temperature detective circuit error 1 Detachment of TK4 sensor miscabli
63. error 07 All IPDU error 38 IPDU communication error Check code Wireless remote controller Main remote controller display Outdoor 7 segment display Sub code AI NET central control display Sensor block display of receiving unit Flash Ready Timer Operation b FILE NO SVM 05052 Check code name Indoor TCJ sensor error Judging device Indoor Indoor TC2 sensor error Indoor Indoor TC1 sensor error Indoor TD1 sensor error VF TD2 sensor error VF TE1 sensor error VF TL sensor error VF TO sensor error VF Indoor TA sensor error Indoor gt gt gt gt gt gt gt gt gt gt TS1 sensor error VF 01 Comp 1 side 02 Comp 2 side gt TH sensor error IPDU Outdoor temp sensor misconnecting TE TL VF Outdoor pressure sensor misconnecting Pd Ps VF Ps sensor error VF Pd sensor error VF Indoor other error Indoor Outdoor EEPROM error VF 01 Comp 1 side 02 Comp 2 side e Dpnimunjimunimunimumnujo a Compressor break down IPDU 01 Comp 1 side 02 Comp 2 side e Magnet switch error Overcurrent relay operation Compressor error lock MG SW Overcurrent relay IPDU
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65. line YES Correct connector connection Communication connector Is communication connector CNO3 between follower outdoor units connected Check I F P C board 1 How to clear the error Set SW01 SW02 SW03 on I F P C board of header unit to 2 16 1 and push SW04 for 5 seconds or more 7 segment display Er CL 67 FILE NO SVM 05052 Check code Check code name Cause of operation E28 d2 Follower outdoor unit error Follower outdoor error Current code x Sub code Detected outdoor unit No An error occurred on the follower unit Check the check code of follower unit on 7 segment display on I F board of follower unit and then check according to Diagnose procedure for each check code How to specify the follower outdoor unit in which error occurred If pushing SW04 for 1 second or more under condition that E28 is displayed on 7 segment display of the header unit the fan of the outdoor which stopped due to occurrence of error starts rotating When pushing SWO5 singly the fan operation is cleared Check code Check code name Cause of operation E31 CF IPDU communication error Connection error of communication line Current code AI NET between IPDU and I F P C board VF P C board error IPDU board error External noise Sub code 01 IPDU1 error 02 IPDU2 error 03 IPDU1 2 error 04 Fan IPDU error
66. of operation Power voltage error Outdoor fan system error Heat sink installation error Clogging of hear sink cooling duct IPDU PC board error TH sensor error Sub code 01 Compressor 1 side 02 Compressor 2 side Is power voltage normal 880 415V 10 YES NO Is wiring of IPDU normal YES NO Is indoor fan normal Correct power line Correct wiring such as cable to compressor or connector connection Check fan and fan motor YES Is screw between IPDU YES and heat sink loosened NO Is there no clogging of YES heat sink cooling duct NO Check IPDU board 97 Tighten screws Correct clogging FILE NO SVM 05052 Check code name Check code name Cause of operation P12 11 Indoor fan motor error 1 Fan motor connector error Current code 2 Fan motor error 3 Indoor board error 4 Cross flow fan bearing error Turn off breaker once Turn on breaker after approx 10 seconds Is voltage more than DC1V NO supplied between and 20 of motor connector CN210 Does fan stop under condition of operation stop YES YES Start cooling operation with LOW setup NO Is voltage more than DC280V NO supplied between O and OO of motor connector CN210 Does fan rotate YES Motor connection status
67. operation In heating operation In cooling operation use the air outlet flap with In heating operation use the air outlet flap with horizontal set point so that cool air diffuses the whole downward set point so that the hot air is spread to room the floor Left Right air direction adjustment gt When you change the blowout direction to left right direct the vertical flap inside of the air outlet flap to desired direction 18 FILE NO SVM 05052 3 11 Air Conditioner Operations and Performance 3 minutes protection function 3 minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main power switch circuit breaker is turned on for re starting the air conditioner Power failure Power failure during operation will stop the unit completely To restart the operation push the START STOP button on the remote controller Lightning or a wireless car telephone operating nearby may cause the unit to malfunction Turn off the main power switch or circuit breaker and then turn them on again Push the START STOP button on the remote controller to restart Heating characteristics Preheating operation The air conditioner will not deliver warm air immediately after it is turned on Warm air will start to flow out after approximately 5 minutes when the indoor heat exchanger warmed up Warm air control In heating operation When the room temperature reaches the set temperature the f
68. parts layout 2 It is necessary to set Indoor unit to be exchanged Remote controller 1 1 Based upon the system configuration turn on power of the indoor unit with one of the following items 1 Single Individual operation Turn on power of the indoor units and proceed to 03 2 Group operation A In case that power of the exchanged indoor unit only can be turned on Turn on power of the exchanged indoor unit only and proceed to 03 B In case that power of the indoor units cannot be turned on individually Case 1 a Remove temporarily the group wire connected to the terminal blocks A and B of the exchanged indoor unit b After connecting the remote controller wire only to the removed terminal block turn on power of the indoor units and proceed to 03 When the above methods cannot be used follow at the Case 2 below 119 FILE NO SVM 05052 In case that power of the indoor units cannot be turned in individually Case 2 a Remove all CN41 connectors of the indoor units in the same group except those of the exchanged indoor unit b Turn on power of the indoor units and proceed to 03 After 13 operation has finished be sure to return the temporarily removed group wire or CN41 connector to the original connection Indoor unit P C board Indoor unit Service P C board of the unit to be changed
69. so that it prevents transmission of resonating operation noise and vibration If one indoor unit is operating some sound may be audible from other indoor units that are not operating 3 8 Troubles and Causes CAUTION If any of the following conditions occur turn off the main power supply switch and immediately contact the dealer The operation lamps flash at short intervals 5 Hz even though you have tried turning off the power supply and turning on again after 2 or 3 minutes Switch operation does not work properly The main power fuse often blows out or the circuit breaker is often activated A foreign matter or water fall inside the air conditioner Any other unusual conditions are observed 16 3 9 Information Confirmation before operation Turn on the power switch 12 hours before starting the operation Make sure whether earth wire is connected Make sure the air filter is connected to the indoor unit Heating capacity A heat pump system which absorbs heat from outside of the room and then discharges heat into the room is adopted for heating If the outside temperature falls the heating capacity decreases When the outside temperature is too low it is recommended to use this air conditioner together with other heating equipment Defrost during heating operation In heating operation if there is frost on the outdoor unit the operation changes automatically to the defrost operation Approx
70. starts rotating by connecting plug socket P C pee CN210 P C board fan motor output voltage DC check 6 Blue 5 Yellow Mee Yellow 4 White 3 Black 2 Indoor main board MCC 1510 error Indoor fan motor error Check code name Check code name Cause of operation P13 47 Outdoor liquid back detection error 1 PMV1 PMV2 error Current code Pd sensor Ps sensor error Clogging of SV2 circuit Clogging of SV3B circuit balance pipe Leakage of main discharge pipe Outdoor I F P C board error Are connections of outdoor NO Correct connector connection PMV1 PMV2 connectors correct CN300 CN301 YES NO Are operations of outdoor PMV1 PMV2 normal PMV error YES Are characteristics of Pd sensor Ps sensor output voltage normal Pd sensor Ps sensor error 2 YES Is SV2 valve coil correctly connected ie Correct connector connection y CV2 CN302 YES Are balance pipe service valves NO Open fully balance pipe of all units fully opened service valves of all units YES YES Is there no clogging of SV3B valve Replace clogging parts NO Is there no clogging of SV3B valve of YES Replace parts a unit other than unit with error gging parts NO Is there no leakage of check valve of YES main discharge pipe in follower units in which A a compressors are driven in cooling operation
71. the main remote controller 108 FILE NO SVM 05052 Check code name Check code name Cause of operation 97 AI NET communication line error AI NET communication line error Current code AI NET NO Are AI NET X and Y Dr YES Are connections of 1 CNO2 and CNO3 connectors on network adaptor P C board MCC 1401 and CN309 and CN41 connectors on indoor P C board normal NO Correct connection of connectors YES Are remote controller Check connection of A B terminal Correct communication line of remote controller communication lines A B normal YES Is there no connection error YES of power line NO YES Is not RUM Supply Turn on the main power supply NO YES Correct power line Clear check code Did a block out occur N Is the network YES address changed by main remote controller N YES Is there no noise etc Eliminate noise etc Can be other indoor units normally controlled from AI NET central remote controller or is the operation status of indoor unit reflected Unavailable Others are same Check central controller Failure Replace YES Can be the indoor unit normally controlled from the main remote controller NO NO Check indoor P C board Failure Replace Does the network adaptor P C board LED D01 turn on Check power transformer of t
72. them to data contents in the previous memorandum in 01 button OK when the display goes on 8 Then repeat the procedure 6 and 7 9 After completion of setup push button to return the status to the usual stop status 5 In a group operation turn off the power supply once return the group wires between indoor units and CN41 connectors as before and then turn on power of all the indoor units appro 1 minute is required to be able to use of the remote controller Df to provided in the item code DN On the way of operation DN No may skip Wien data has been changed by mistake and button has been pushed the data can be returned to the data before change by pushing __ ns a 7 button if the item code DN was not yet ad M changed 121 FILE NO SVM 05052 Item code table Please record the objective unit data at field Filter sign lighting time At shipment 0001 150 hour Dirty state of filter 0000 Standard Central control address 0099 Unfixed Heating suction temp shift 0002 2 C PRE DEF indication selection 0000 Standard Cooling auto mode existence 0001 No auto mode cooling heating Automatic selection by Cooling only connected outdoor unit 0000 Heat pump Type Be sure to set as 0008 0008 High wall type Indoor uni
73. 1 0008 1 way air discharge cassette 4 way air discharge cassette to 0037 High Wall High Wall Indoor unit capacity 0000 Unfixed 0001 to 0034 According to capacity type Line address 0001 No 1 unit to 0030 No 30 unit 0099 Unfixed Indoor unit address 0001 No 1 unit to 0064 No 64 unit 0099 Unfixed Group address 0000 0002 Individual 0001 Follower unit of group Header unit of group 0099 Unfixed Temp difference of automatic cooling heating mode selection COOL HEAT HEAT COOL 0000 0 deg to 0010 10 deg For setup temperature reversal of COOL HEAT by x Data value 2 0003 8 deg Ts 1 5 Automatic restart of power failure None Reset None Selection of option error input CN80 Filter input Alarm input Air washer etc Outside error input Outside error input Interlock HA terminal CN61 select Usual Leaving ON prevention control Usual HA terminal TA sensor selection Body TA sensor Remote controller sensor Body TA sensor Temperature unit select at factory shipment F Timer set Wired remote controller Available Operable Unavailable Operation prohibited Available Flap selection of cooling Standard Permission of blowing downward 31 Standard FILE NO SV
74. 3C valve Clogging check for SV3B valve For multiple outdoor unit system While outdoor unit is operated set up SW01 02 03 2 1 3 to 7 segment display Hr 2 and push SW04 for 2 seconds or more Set up SWO2 9 and turn SV3A SV3B SV3C valves 7 segment display Hr 3 While outdoor unit is operating check temperature change at secondary side of SV3B valve in the figure If temperature does not rise equivalent to suction temperature it is a clogging of SV3B valve Replace SV3B valve Clogging for SV3E valve Reset the power supply 5 Referring to Valve forced open close function of the outdoor unit check ON OFF operation Sound coil surface temp up of SV3E valve is performed 5 Start test operation in COOL or HEAT mode 5 After operation for several minutes check the pipe temperature at the secondary side of SV3E valve whether temperature changes or not If it is equivalent to outside temperature clogging of SV3E is considered in the figure Reference If SV3E valve is clogged temperature of all TK1 TK2 and TK4 do not change 2 Clogging check for SV3D valve of oil return circuit from oil separator a Oil return circuit While outdoor unit is operating check temperature secondary side of capillary on oil return circuit 6 in the figure If temperature is low equivalent to suction temperature a clogging of strainer of oil return ci
75. 49317 Rubber Seal Evaporator 43T49006 Holder for Plate 43T22002 ASM M Bearing 43739314 Base Bearing Ass y 43720302 Fan Cross Flow 43T21344 Fan Motor MF 340 30 1 43T39315 Band Motor Left 43T39303 Band Motor Right 43T82301 Plate Installation 43T69309 Wireless Remote Controller WH H2UE 43T83003 Holder Remote Controller 43T85497 Owner s Manual 43762318 Terminal Cover 43T07303 Holder Pipe 43T62319 Cover PM V Ass y 43T21321 Motor Stepping MP24Z DC12V 43T44370 Refrigeration Ass y 43T44371 Distributor Ass y 43T47340 Pipe Delivery 431747341 Pipe Suction 43T11301 Pipe Shield 43721354 Motor 43T44370 Refrigeration Ass y 43T19003 Fix P Sensor 123 FILE NO SVM 05052 411 Location No Location Part Description No Part Description 43T60001 Terminal 15A 250V 43T60002 Terminal Block 15A 250V 43T60362 Terminal 43T50312 Sensor Heat Exchanger 43T50303 Temperature sensor 43T50313 Sensor Thermostat 43T69428 P C Board 43T69429 Display Unit 43T62003 Cord Clamp 43T61301 Cover Parts E 43T62315 Cover Connect P 43772307 Drain Guide 124 TOSHIBA CARRIER CORPORATION
76. 9 FILE NO SVM 05052 Check code name Check code name Cause of operation H06 20 Low pressure protective operation Service valve close Current code AI NET Ps sensor error SV2 SV4 circuit error Miscabling of communication between indoor and outdoor Indoor outdoor fan and condenser error Indoor outdoor PMV clogging Indoor outdoor heat exchanger clogging Refrigerant shortage Are service valves of gas and NO liquid pipe of outdoor unit fully opened Open service valves fully YES Are characteristics of NO low pressure sensor normal Exchange low pressure sensor 1 Pressure by pressure gauge Check joint YES 2 Pressure display on 7 segment display 3 Output voltage of I F P C board If 1 and 2 3 are different an error of pressure sensor error is considered If 2 and are different check I F P C board NO mm Are SV2 and SV4 circuits normal Correct SV2 and SVA circuits YES Check miscabling misinstallation and connector connection YES Is not indoor unit with different circuit connected NO In cooling season go to A In heating season go to B A Cooling Does indoor fan normally operate in cooling season YES Correct cabling Check with miscabling check function of outdoor unit Are following items concerned to indoor fan motor normal 1 Connector connection 2 Condenser 3 Motor R
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78. Accordingly the tools to be used are classified into the following three types 1 Tools exclusive for R410A Those which cannot be used for conventional refrigerant R22 2 Tools exclusive for R410A but can be also used for conventional refrigerant R22 3 Tools commonly used for R410A and for conventional refrigerant R22 The table below shows the tools exclusive for R410A and their interchangeability Tools exclusive for R410A The following tools for R410A are required Tools whose specifications are changed for R410A and their interchangeability Used tool Flare tool Pipe flaring R410A air conditioner installation Conventional air conditioner installation Existence of new equipment for R410A Whether conven tional equipment can be used Whether new equipment can be used with conventional refrigerant Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Torque wrench Connection of flare nut Gauge manifold Charge hose Evacuating refrigerant charge run check etc Vacuum pump adapter Vacuum evacuating Electronic balance for refrigerant charging Refrigerant charge Refrigerant cylinder Refrigerant charge Leakage detector Gas leakage check Charging cylinder Refrigerant charge Note 1 When flaring is carried out for R410A using the conventional flare too
79. Correct power line Correct refrigerant stagnation in compressor shell Compressor error Is compressor normal 2 YES Check IPDU board 2 Check the following items mainly 1 Existence of abnormal sound and abnormal vibration during operation or starting 2 Abnormal overheat of case during operation or stop time Never touch with hands 3 Current of compressor lead during operation or starting time No varied change of current change 3 If OCR operates even after manual reset of OCR check whether the wiring to the current sensor TO2 of Comp IPDU is correct or not 77 FILE NO SVM 05052 Check code name Check code name Cause of operation H03 17 Current detective circuit system error 1 Cabling or connector connection error on Current code AI NET IPDU P C board 2 IPDU board error Sub code 01 Compressor 1 side 02 Compressor 2 side a sei Correct connector connection or cabling Check IPDU board 78 FILE NO SVM 05052 Check code name Check code name Cause of operation Case thermo circuit error I F P C board error Service valve closed Outdoor PMV clogging SV4 valve leak Coil misinstallation 4 way valve error Compressor error Refrigerant shortage H04 44 Compressor 1 case thermo operation Current code AI NET H14 44 Compressor 2 case thermo operation Current code AI NET
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81. E NO SVM 05052 New Refrigerant R410A This air conditioner adopts a new HFC type refrigerant R410A which does not deplete the ozone layer 1 Safety Caution Concerned to New Refrigerant The pressure of R410A is high 1 6 times of that of the former refrigerant R22 Accompanied with change of refrigerant the refrigerating oil has been also changed Therefore be sure that water dust the former refriger ant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refriger ant during installation work or service work If an incorrect work or incorrect service is performed there is a possibility to cause a serious accident Use the tools and materials exclusive to R410A to purpose a safe work 2 Cautions on Installation Service 1 Do not mix the other refrigerant or refrigerating oil For the tools exclusive to R410A shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them 2 As the use pressure of the new refrigerant is high use material thickness of the pipe and tools which are specified for R410A 3 In the installation time use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water oxide scales oil etc Use the clean pipes Be sure to brazing with flowing nitrogen gas Never use gas other than nitrogen gas
82. Hz flashes Repeat on main remote controller disappears for approx 10 seconds Reset on indoor unit P C board Repetition _ code Check code name Cause of operation F31 1C Outdoor EEPROM error 1 Outdoor unit power error Voltage noise etc Current code 2 Outdoor I F board error Is there any trouble of YES Check power voltage and line 2 Correct power line outdoor unit power supply Check external noise etc Check I F P C board 75 FILE NO SVM 05052 Check code name Check code name Cause of operation H01 1F Compressor breakdown 1 Outdoor unit power line error Current code 2 Compressor circuit system error 3 Compressor error 4 Cause of abnormal overload operation 5 IPDU board error Sub code 01 Compressor 1 side 02 Compressor 2 side NO 380 415V 10 Is power voltage of outdoor unit normal YES Does voltage drop occur when other compressor starts NO Is connection of wiring or connection of connector on IPDU P C board normal YES Is winding resistance between phases of corresponding compressor normal Note 1 YES Correct power line NO Correct connector connection or wiring NO Compressor error Motor burning etc Correct cause of overload YES Is not it an abnormal overload NO Take off lead
83. Is not main power of outdoor unit turned off NO Is the end terminal resistance between outdoor units turned on SW30 Bit 1 NO Correct cabling of cable connector YES Turn on main power of outdoor unit NO Turn the end terminal resistance to ON YES Clear check code Did power failure occur NO YES Is there no noise source etc Check and eliminate noise etc NO Check outdoor I F P C board Defect Replace 66 FILE NO SVM 05052 Check code Check code name Cause of operation E25 15 Duplicated follower Addresses are duplicated by manual setup of Current code outdoor address setup outdoor address Do not set up outdoor address manually Check code Check code name Cause of operation E26 15 Decrease of connected outdoor 1 Outdoor unit backup setup Current code units Outdoor power error Communication line connection error between outdoor units Connector connection error for communication Outdoor I F P C board error Sub code of outdoor units which received signals normally YES Clear the error and then start operation 1 Is outdoor unit setting backup NO NO Is main power of follower unit turned on Turn on the main power supply YES 15 communication line between NO TREE outdoor units connected normally orrect connection of communication
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85. M 05052 TYPE Indoor unit capacity Item code 10 Item code 11 Setup data Abbreviated Model name Setup data Model 0008 High Wall MMK AP XXX H 6 1 2 Applied Control in Indoor Unit Remote location ON OFF control box TCB IFCB 4E Wiring and setup Use the exclusive connector for connection with the indoor control board In a group control the system can operate when connecting with any indoor unit Control P C board in the group However when taking out the operation error signal from the other unit it is necessary to take out from each unit individually 1 Control items 1 Start Stop input signal Operation start stop in unit 2 Operation signal Output during normal operation 3 Error signal Output during alarm Serial communication error or indoor outdoor protective device operation 2 Wiring diagram using remote control interface TCB IFCB 4E Input IFCB 4E No voltage ON OFF serial signal Output No voltage contact for operation error display Contact capacity Below Max AC240V 0 5A Indoor control P C board ON side Start signal input OFF side Stop signal input COM Operation signal output Error signal output i i TCB IFCB 4E Power supply 220 240V 50Hz 220V 60Hz 32 FILE NO SVM 05052 Ventilating fan control from remote controller Function The start stop operation can be operated from the wired remote controller when air to air heat exchan
86. PDU error No of IPDU error Detected indoor address Auxiliary interlock in indoor unit Indoor IC error VF FILE NO SVM 05052 Check code Wireless remote controller Sensor block display Outdoor 7 segment display of receiving unit Judging Check code name 4 device Main remote controller display AI NET central control display Ready Timer Operation Flash Auxiliary code Indoor fan motor error Indoor Discharge temp TD1 error VF 01 Comp 1 side 02 Comp 2 side High pressure SW detection error IPDU 01 Phase missing detection 02 Phase order error Phase missing detection Phase order error VF 01 Comp 1 side 02 Comp 2 side Heat sink overheat error IPDU VF Indoor fan motor error Indoor Outdoor liquid back detection error VF 01 TS condition 02 TD condition Gas leak detection VF Discharge temp TD2 error VF Detected outdoor unit number 4 way valve inverse error VF High pressure protective operation VF Ow T3 IGBT short Fan motor position detective circuit error 3 Fan motor trouble C TH sensor temp error Heat sink overheat TH sensor error Vdc output error Diese EZ Outdoor fan IPDU error 01 Comp 1 side 02 Comp 2 side G TR short protection error IPDU 01 Comp 1 sid
87. Select the setup data using the timer time 4 and v buttons When selecting the DN code to 33 change the temperature indication of the unit from C to F on the remote controller 5 Push SET button OK if display goes on To change the selected indoor unit return to procedure 2 To change the item to be set up return to procedure 6 Pushing C button returns the status to normal stop status 30 Filter sign lighting time 0000 0002 0004 Description 0001 150H 0003 5000H None 2500H 10000H FILE NO SVM 05052 Table Function selecting item numbers DN Items necessary to perform the applied control at the local site are described At shipment Dirty state of filter 0000 0001 Standard High degree of dirt Half of standard time Standard Central control address 0001 0099 No 1 unit to 0064 No 64 unit Unfixed Unfixed Specific indoor unit priority 0000 No priority 0001 Priority No priority Heating temp shift 0000 0002 No shift 2 0001 1 0010 10 Up to 6 recommended 142 C Existence of automatic cool heat mode 0000 0001 Provided Not provided Automatic selection from connected outdoor unit Not provided Cooling only 0000 0001 Heat pump Cooling only No display of AUTO HEAT Heat pump Type 0000 000
88. Stop operation turn off Change setup of Is voltage DC15V supplied breaker turn on breaker again cooling wind to HIGH between and 20 of and then stop operation from motor connector CN210 remote controller YES Is voltage more than DC280V supplied between and S of motor connector CN210 YES AN gt Is voltage than 1 supplied Stop operation andtake off between 509 and of motor connector plug socket CN210 when turning on the motor Remove motor connector except heating mode from remote controller connect plug socket again Check it within 15 seconds and then stop the operation after start of operation from remote controller Is voltage more than DC 1V supplied between 6 and of motor connector CN210 when turning on the motor except heating mode from remote controller Check it within 15 seconds after start of operation NO Does rpm of fan increase gt YES NO Does cross flow fan No gt rotate normally with hands YES Repair bearing of cross flow fan Does voltage 0 to 15V No of rotation return signal generate between 3 O of motor connector CN210 when rotating cross flow fan with NO A Replace indoor fan motor hands under condition of operation stop Replace indoor main board 98 FILE NO SVM 05052 Indoor fan
89. TOSHIBA FILE NO SVM 05052 SERVICE MANUAL _SUPER 8 HFC High Wall Type MMK AP0072H MMK AP0092H MMK AP0122H SUPER MODULAR MULTI This Service Manual describes contents of the new High Wall indoor unit For the outdoor unit refer to the Manual with FILE NO A03 009 The service parts will be supplied by TCTC PRINTED IN JAPAN Apr 2005 FILE NO SVM 05052 CONTENTS SAFETY CAUTION a ea ilr dn o enl dra ra 3 1 CONSTRUCTION VIEWS EXTERNAL VIEWS 8 2 WIRING DIAGRAM sanese aanas cssc P aECCH 2H HUnE andana nsee 9 PARTS RATING ee 10 4 REFRIGERANTING CYCLE 23 9 CONTROL OUTEINE met 24 6 APPLIED CONTROL 30 7 TROUBLESHOOTING ia ca cora ona n aua 37 8 CONFIGURATION OF CONTROL CIRCUIT 111 9 HOW TO REPLACE MAIN PARTS 113 10 REPLACEMENT OF SERVICE INDOOR P C BOARD 118 11 EXPLODED VIEWS AND PARTS LIST 123 FILE NO SVM 05052 SAFETY CAUTION The important contents concerned to the safety are described on the product itself and on this Service Ma
90. To change the selected indoor unit go to the procedure 2 To change the item to be set up go to the procedure J 6 Pushing returns the status to the usual stop status 2 Wiring Corresponds up to a relay in which rated current of the operation coil is approx 75 Relay DC12V procured locally Outside control input of fan To terminal CN32 FAN DRIVE 2P WHI Indoor control P C board Note Determine the cable length between the indoor control P C board and the relay within 2m 33 FILE NO SVM 05052 B Leaving ON prevention control Function This function controls the indoor units individually It is connected with cable to the control board of the indoor unit In a group control it is connected with cable to the indoor unit Control board and the item code 2215 set to the connected indoor unit tis used when the start operation from outside if unnecessary but the stop operation is necessary Using a card switch box card lock etc the forgotten OFF of the indoor unit can be protected When inserting a card start stop operation from the remote controller is allowed When taking out a card the system stops if the indoor unit is operating and start stop operation from the remote controller is forbidden 1 Control items 1 Outside contact ON The start stop operation from the remote controller is allowed Status that card i
91. Y92049 AlNd J00pu jo yoouD euunjoA jo esne Ue YOOYUD 4 1 100pino ZAS yooyD iun 400pino 11045 Y99049 100pino 100pui BulBBojo yooyuD 2 LAWd AWd 100pino jo 10119 JOJOW yOoUD 10119 49949 apis pinbrq apis sec Buluado Ini yoouD Josues eunsseJd xoeuo uonisod wa 49949 10 2 peioejep Josues uonipuoo uonoejep 1043 dois snieis uoneJjedo eunsseJd u6iH 2 uonisod LAN IV apoo qns epoo yoay9 apoo 52 FILE NO SVM 05052 Od 1 sem ul yun ueuM 1 SEM 80 1 0 1 20 1 Z04 sdojs Ajuo jun 10100 1 0 Joopu 4046 preoq Y99490 5
92. a in the following table replace IPDU PC board Measured position Criteria Between Red and White 400 V to 650 V Between White and Black 400 V to 650 V Between Black and Red 400 V to 650 V After checking the output when connecting the compressor lead again to the compressor terminal check surely there is no distortion on the fasten terminal lug If it is loosened caulk it with pinchers etc and then connect lead to the terminal 7 4 3 How to Check Resistance of Compressor Winding 1 Turn off the power supply 2 Remove the compressor lead cables from the compressors In each compressor check the winding resistance between phases and resistance of the outdoor cabinet using a tester 15 not it earthed Normal if 10M or are measured s not shorted between windings Normal if 0 7Q to 0 90 are measured Use a precise digital tester 7 4 4 How to Check the External Fan Motor 1 Turn off the power supply 2 Take off three connectors U V W from the external fan IPDU P C board 3 Turn the fan with hands If the fan does not turn it is a fan motor error Lock Replace the fan motor If the fan turns measure the winding resistance between the phases of the connector Motor winding with a tester If 13 to 330 are measured it is normal Use a digital tester 55 FILE NO SVM 05052 7 5 Diagnosis Procedure for Each Check Code Check code Check code name Cause of operation E01
93. acity unset Indoor capacity unset Current code Are capacity setups YES Set up capacity data of indoor unit of indoor units unset Setup item code DN 11 NO Check indoor P C board Defect gt Replace 90 FILE NO SVM 05052 Check code name Check code name Cause of operation L10 88 Outdoor capacity unset On the outdoor IF board for service the Current code AI NET model selecting jumper has not been set up so as to match with the model I F board A ssy service for the outdoor unit is common to this series A setup for model selection different from that board with trouble is necessary Set up a model based upon the board A ssy exchange procedure _ code Check code Cause of operation L20 98 Duplicated central Central control addresses are duplicated Current code control addresses YES Correct the network address of the central control system Are not two or more central control system identical network addresses connected Check the network adaptor on the indoor board Check code name Check code name Cause of operation L28 46 Quantity over of 1 Quantity over of connected outdoor units Current code AI NET connected outdoor units 2 Connection error of communication line between outdoor units 3 Outdoor I F P C board error
94. air conditioner execute vacuuming and then newly recharge the specified amount of liquid refrigerant In this time never charge the refrigerant over the specified amount When recharging the refrigerant in the refrigerating cycle do not mix the refrigerant or air other than R410A into the specified refrigerant If air or others is mixed with the refrigerant abnormal high pressure generates in the refrigerating cycle resulted in cause of injury due to breakage After installation work check the refrigerant gas does not leak If the refrigerant gas leaks in the room poisonous gas generates when gas touches to fire such as fan heater stove or cocking stove though the refrigerant gas itself is innocuous Never recover the refrigerant into the outdoor unit When the equipment is moved or repaired be sure to recover the refrigerant with recover ing device The refrigerant cannot be recovered in the outdoor unit otherwise a serious accident such as breakage or injury is caused FILE NO SVM 05052 Assembly Cabling After repair work surely assemble the disassembled parts and connect and lead the removed cables as before Perform the work so that the cabinet or panel does not catch the inner cables If incorrect assembly or incorrect cable connection was done a disaster such as a leak or fire is caused at 5 side Insulator check After the work has finished be sure to use an insulation tester set 500V mugger to check
95. amp goes on Is the timer ON The operation lamp goes on Are COOL and HEAT selected simultaneously STANDBY indica tion is lit on the display column of the remote controller Is the suction port or discharge port of the outdoor unit obstructed Are any door or window open Is the air filter clogged with dust Is discharge louver of the indoor unit set at appropriate position Is air selection set to LOW MED and is the operation mode set to FAN Is the setup temp the appropriate temperature Are COOL and HEAT selected simultaneously STANDBY indica tion is lit on the display column of the remote controller When the following symptoms are found stop the operation immediately turn off the power switch and contact the dealer which you have purchased the air conditioner Activation of switch is unstable Fuse or breaker is blown periodically Foreign matters or water entered by mistake When if activation cause of the protective device has been removed the operation is not performed Other unusual status occurred 22 FILE NO SVM 05052 4 REFRIGERANTING CYCLE DIAGRAM Liquid side Gas side Capillary tube Air heat exchanger at indoor side Pulse Motor Valve PMV Sensor TC2 Sensor TC1 Sensor TA Fan motor Functional part name Functional outline Pulse Motor Valve Connector CN082 6P Blue 1 Controls super heat in cooling operation
96. an speed is automatically reduced to prevent to blow cold draft At this time the outdoor unit will stop Defrosting operation If the outdoor unit is frosted during the heating operation defrosting starts automatically for approximately 2 to 10 minutes to maintain the heating capacity The fans in both indoor and outdoor units will stop during the defrosting operation During the defrosting operation the defrosted water will be drained from the bottom plate of the outdoor unit Heating capacity In the heating operation the heat is absorbed from the outside and brought into the room This way of heating is called heat pump system When the outside temperature is too low it is recommended to use another heating apparatus in combination with the air conditioner Aitention to snowfall and freeze on the outdoor unit In snowy areas the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up If snow or freeze on the outdoor unit is left as it is it may cause machine failure or poor warming In cold areas pay attention to the drain hose so that it perfectly drains water without water remaining inside for freeze prevention If water freezes in the drain hose or inside the outdoor unit it may cause machine failure or poor warming Air conditioner operating conditions For proper performance operate the air conditioner under the following temperature conditions Cooling operation Outdoor temper
97. ard Checkcode Check code name Cause of operation 205 A1 TD2 sensor error TD2 sensor Open Short Current code This error code means detection of Open Short of TD2 sensor Check disconnection of circuit for connection of connector TD2 sensor CN503 Pink and characteristics of sensor resistance value Refer to Outdoor unit temperature sensor characteristics If sensor is normal replace outdoor I F P C board Checkcode code Check code name Cause of operation Let 18 TE1 sensor error TE1 sensor Open Short Current code AI NET This error code means detection of Open Short of TE1 sensor Check disconnection of circuit for connection of connector TE1 sensor CN505 Green and characteristics of sensor resistance value Refer to Outdoor unit temperature sensor characteristics If sensor is normal replace outdoor I F P C board 70 FILE NO SVM 05052 Check code Check code name Cause of operation 207 18 TL sensor error TL sensor Open Short Current code This error code means detection of Open Short of TL sensor Check disconnection of circuit for connection of connec tor TL sensor CN521 White and characteristics of sensor resistance value Refer to Outdoor unit temperature sensor characteristics If sensor is normal replace outdoor I F board Check code name Che
98. as stopped the opera tion lamp and all the displays disappear 9 Operation select button Selects desired operation mode 10 Set up temperature button Adjusts the room temperature Set the desired set temperature by pushing OPTION Remote controller sensor Usually the TEMP sensor of the indoor unit senses the temperature The temperature on the surround ing of the remote controller can also be sensed For details contact the dealer from which you have purchased the air conditioner FILE NO SVM 05052 3 4 Correct Usage When you use the air conditioner for the first time or when you change the SET DATA value follow the proce dure below From the next time the operation displayed on the remote controller will start by pushing the MEO button only Preparation Turn on the main power switch and or the leakage breaker When the power supply is turned on a partition line is displayed on the display part of the remote controller After the power supply is turned on the remote controller does not accept an operation for approx 1 minute but it is not a failure REQUIREMENT While using the air conditioner operate it only with button without turning off the main power switch and the leak breaker 1 Push button Cooling only model The operation lamp goes on and the operation starts DRY COOL FAN 2 Select
99. ation YES Is there noise source NO Eliminate noise I F board failure However an emergent operation is Outdoor I F board failure available by inserting connector to Replace be connected to 1 to CN33 60 FILE NO SVM 05052 Check code Check code name Cause of operation E08 96 Duplicated indoor addresses 1 Indoor addresses are duplicated Current code 2 Switch setup error of wall type P C board Sub code Duplicated indoor address Using a main remote controller RBC AMT21E check the setup item codes DN code 12 13 and 14 When there is no address duplication check to the following flowchart Is cable connection to communication line normal NO Correct cable connection Is setup of the model SELECT SW SW02 on wall type P C board of normal Bit 1 ON Bit 2 OFF Is not communication line connected to the different outdoor unit NO Is indoor unit quantity connected to outdoor unit correct YES Set up indoor address again NO Correct switch setup YES NO Correct communication line Check code Check code name Cause of operation E09 99 Duplicated master Setup of master remote controller is duplicated Current code AI NET remote controller Are two remote controllers set up YES Correct setup of remote controllers as a master as two master remote controllers
100. ature 5 C to 43 Room temperature 21 C to 32 C Dry valve temp 15 C to 24 C Wet valve temp CAUTION Room relative humidity less than 80 If the air conditioner operates in excess of this figure the surface of the air conditioner may cause dewing Dry operation Outdoor temperature 15 C to 43 C Maximum suction air temp 46 Room temperature 17 C to 32 C Heating operation Outdoor temperature 15 to 15 C Wet valve temp Room temperature 15 C to 28 C Dry valve temp If air conditioner is used outside of the above conditions safety protection may work 19 FILE NO SVM 05052 3 12 Maintenance For maintenance be sure to turn off the main power switch A WARNING Please do not intend to do the daily maintenannce and or Air Filter cleaning by yourself Otherwise you may contact with revolving fan or active electrity when you insert your hands into the unit during running of the air conditioners CAUTION Do not handle the buttons with wet hands otherwise an electric shock may be caused Cleaning of air filter When FILTER is displayed on the remote controller maintain the air filter e Clogging of air filter decreases cooling heating effect FILTER display Notifies the time to clean the air filter M cD AAAH N T mE riti 88 98 e FC gt At
101. cable of compressor 1 Check resistance between windings It is normal if there are 0 7Q to 0 90 2 Check insulation between outdoor cabinet and terminal It is normal if there are 10MQ or more Check IPDU board Note 1 After checking the output when connecting the compressor lead again to the compressor terminal check surely there is no distortion on the Fasten receptacle terminal If it is loosened caulk it with pinchers etc and then connect lead to the terminal firmly Details of compressor power connecting section 76 FILE NO SVM 05052 Check code name Check code name Cause of operation H02 1d Compressor error Lock 1 Outdoor unit power line error Current code AI NET 2 Compressor circuit system error 3 Compressor error 4 Refrigerant stagnation in compressor shell 5 IPDU P C board error Sub code 01 Compressor 1 side 02 Compressor 2 side NO Is power voltage of outdoor unit normal 1 Does voltage drop occur when other compressor starts NO YES Does OCR of MG SW operate Reset OCR manually 3 NO Is wiring or connector connection NO Correct connector connection on IPDU P C board normal or wiring YES YES Is not it an abnormal overload Correct cause of overload NO Is there no refrigerant stagnation Is case heater output normal in compressor shell p NO Operation starts Check case heater 1 380 415V 10 YES
102. ck code name Cause of operation 208 1b TO sensor error TO sensor Open Short Current code This error code means detection of Open Short of TO sensor Check disconnection of circuit for connection of connector TO sensor CN507 Yellow and characteristics of sensor resistance value Refer to Outdoor unit temperature sensor characteristics If sensor is normal replace outdoor I F board Check code Check code Check code Cause of operation F10 0 Indoor TA sensor error TA sensor Open Short Current code This error code means detection of Open Short of TA sensor Check disconnection of circuit for connection of connec tor TA sensor CN104 White and characteristics of sensor resistance value Refer to Outdoor unit temperature sensor characteristics If sensor is normal replace indoor P C board Check codename code name Check code name Cause of operation F12 A2 TS1 sensor error TS1 sensor Open Short Current code This error code means detection of Open Short of TS1 sensor Check disconnection of circuit for connection of connector TS1 sensor CN504 White and characteristics of sensor resistance value Refer to Outdoor unit tem perature sensor characteristics If sensor is normal replace outdoor I F board 71 FILE NO SVM 05052 Check code name Check co
103. coil normal Repair faulty parts Are connector connection heat exchanger fan and fan motor normal Is indoor NO PMV normal YES Is there a cause to interfere operation of indoor heat exchanger 1 Air filter clogging 2 Heat exchanger clogging 3 Air short circuit NO YES Repair faulty parts Eliminate the interfered causes Is SV5 circuit normal YES Is there clogging of valve NO NO Are not indoor units of different refrigerant circuit connected YES Check with miscabling check function of outdoor unit Are characteristics of TC2 and TCJ sensor resistance value normal NO Replace TC2 or TCJ sensor Repair faulty position Connector connection cabling coil installation clogging etc Check indoor board Failure Replace Replace PMV body Check and correct the cabling Refrigerant overcharge clogging pipe breakage abnormal overload condition 96 FILE NO SVM 05052 Check code name Check code name Cause of operation P05 AF Open phase negative phase 1 Power supply open phase Current code 2 Power supply negative phase Check the phase power line of outdoor unit Check error of outdoor I F P C board Check there is no looseness etc of terminal Check code name Check code name P07 1C Heat sink overheat error Current code Cause
104. de name Cause of operation F13 43 TH sensor error IGBT built in sensor error in A3 IPDU Current code Sub code 01 Compressor 1 side 02 Compressor 2 side This error code means IGBT built in temperature sensor error Check connection of connectors CNO6 on IPDU board and CN600 on I F PC board If sensor is normal replace IPDU board Check code name Check code name Cause of operation F15 18 Outdoor temp sensor miscabling Misinstallation and misconnection of Current code TE1 TL sensor and TL sensor Resistance characteristics error of TE1 sensor and TL sensor Outdoor board I F error Are installed positions of NO Correct installed positions of TE1 sensor and TL sensor correct TE1 sensor and TL sensor YES Outdoor I F P C board TE1 sensor CN505 Green TL sensor CN521 White Correct connection of connectors YES wa E Correct connection of connectors YES Outdoor unit temperature sensor characteristics See TE1 sensor Characteristics 5 See TL sensor Characteristics 2 Check outdoor I F P C board Defect Replace TE1 sensor Outdoor heat exchanger temp sensor TL sensor Temp sensor between liquid tanks of outdoor PMV 1 2 72 FILE NO SVM 05052 Check code name Check code name Cause of operation F16 43 Outdoor p
105. does not change An operation executed from the wireless remote controller in Central control mode is notified by the receiving sounds Pi Pi Pi Pi Pi Five times Hi POWER operation Wireless remote control specific operations Outline of specifications When you press the Hi POWER button during cooling heating or A operation the air conditioner will start the following operation Cooling operation Performs the cooling operation at 1 C lower than the setting temperature Only when the fan speed before the Hi POWER operation is not high the fan speed will be increased Heating operation Performs the heating operation at 2 C higher than the setting temperature Only when the fan speed before the Hi POWER operation is not high the fan speed will be increased FILE NO SVM 05052 Remarks ECO timer operation Wireless remote control specific operations When you press the ECO button during cooling heating or A operation the air conditioner will start the following opera tion The fan speed display will indicate AUTO and low speed will be used Cooling operation In the operation suppression zone where capacity is kept to the minimum overcooling is prevented by raising the temperature setting by 1 C after 1 hour and by 2 C after 2 hours of operation The room temperature is thus regulated between the operation suppression zone and the set temperature Heating operation In the
106. e 02 Comp 2 side Comp position detective circuit system error IPDU x Other indoor unit error Group follower unit error Indoor By alarm device Error in indoor group AI NET AI NET communication system error AI NET Error detected by TCC LINK central control device Check code Wireless remote controller Central control device indication Outdoor 7 segment display AI NET central control display Auxiliary code Sensor block display of receiving unit Ready Timer Operation Flash Duplicated network adaptors Check code name Sending error in TCC LINK central control device AI NET Judging device TCC LINK Receiving error in TCC LINK central control device TCC LINK Batch alarm of general purpose equipment control interface HA control interface VF Differs according to error contents of unit with occurrence of alarm Group control follower unit error L20 is displayed 40 Duplicated central control addresses TCC LINK FILE NO SVM 05052 7 2 2 New Check Code 1 Difference between the TCC LINK and AI NET check code The displaying method of the check code changes in this model and after AI NET check code TCC Link Used characters Hexadecimal notation 2 digits Alphabet Decimal notation 2 digits Characteristics of code Few classification of communication Many
107. e rises FILE NO SVM 05052 3 10 Adjustment of Air Direction To increase the cooling heating efficiency be sure to make proper use of the discharge flap for cooling or heating operation As the characteristics of air cool air collects at lower levels and hot air collects at higher levels A CAUTION Set the flap so that air blows out horizontally If cooling operation is performed with the flap blowing air downwards the air outlet or surface of the flap will be wet with dew and dewdrop may fall down Setup of air direction and swinging Unit No Unit No No 1 1 1 2 Unit No No 1 4 1 3 Push CT _ during operation is displayed and the air direction is auto Push CUNIT to set up the air direction matically exchanged upward downward RS When a remote controller operates the multiple indoor units an indoor unit is selected and air direction can be individually set up individually in each indoor unit Then the indoor unit No in a group control is displayed For the displayed indoor unit set up the air direction If the unit No is not displayed all the indoor 2 Push again during swinging of the units are operated at the same time flap the display is ex You can stop the flap at the desired position High Wall Type Up Down air direction adjustment gt In cooling
108. ed 1 Opens PMV of the indoor unit by the specified opening degree 2 Stops the fan In the indoor unit which cooling thermostat is OFF or operates in FAN mode i lamp goes on Recovery operation 15 usually executed every 1 hour Short intermittent operation compensation control 1 For 5 minutes after the operation has started the operation is continued even if entering thermostat OFF condition 2 However Cooling Heating exchange and the system protective control precede and thermostat is OFF Elimination of remaining heat 1 When the air conditioner stops in the HEAT mode drive the indoor fan with LOW mode for approx 30 seconds Flap control 1 Flap position setup Wired type The flap position can be set up in the following operation range In cooling dry operation In heating fan operation N In group operation the flap positions can be set up collectively or individually Swing setup The swinging position can be moved in the following operation range All modes se D d n group operation the swinging positions can be set up collectively or individually Fix set up Wireless type Keep pressing or pressing briefly the FIX button to move the flap in the desired direction Operating angle of flap will be different during cooling dry and heating operation 4 When the unit stops the flap automatically closes
109. ed Air volume select display The selected air volume mode is displayed AUTO 2 HIGH 99 MED 3 LOW e Stand by display Displayed when unit cannot start cooling operation because other indoor units are being heating operation Operation section Push each button to select a desired operation FILE NO SVM 05052 The details of the operation needs to be set up once afterward the air conditioner can be used by pushing button only REMOTE CONTROLLER eS EOS GOLN A v CUNIT Gr IC 1 Air volume select button Selects the desired air volume mode 2 Timer set button TIMER SET button is used when the timer is set up Check button The CHECK button is used for the check opera tion During normal operation do not use this button Fan button FAN button is used when a fan which is sold on the market or etc is connected If No function is displayed on the remote controller when pushing the FAN button a fan is not connected 5 Filter reset button Resets Erases FILTER display 7 Operation lamp Lamp is lit during the operation Lamp is off when stopped Although it flashes when operating the protection device or abnormal time 6 12 8 button When the button is pushed the operation starts and it stops by pushing the button again When the operation h
110. ensor TE1 sensor CN505 connectors connected 2 Pd sensor CN501 YES Ps sensor CN500 m Are characteristics of resistance value of TS1 and TE1 sensors normal Replace sensor YES NO Are output voltage characteristics of Pd and Ps sensors normal Replace sensor YES Correct connection and installation Are connection and installation of TE1 and TL sensors correct YES If an error did not occur 2 Reset the power supply and start heating test operation Does not discharge refrigerant gas bypass to suction side through 4 way valve 1 YES Does 4 way valve operate in test operation restart the operation NO YES 4 way valve error Check 4 way valve 1 Check TS and TE temperature of the outdoor unit which compressors is operated I F SW01 1 SWO2 6 SWO3 2 TS sensor temperature SW01 1 SW02 7 SWO3 2 TE sensor temperature Judgment criteria TE sensor Normal if TE lt 20 except summer season Outside temp 20 or lower TS sensor Normal if TS lt 40 except summer season Outside temp 20 or lower 103 FILE NO SVM 05052 Check code name Check code name Cause of operation Pd sensor error Service valve closed Indoor outdoor fan error Indoor outdoor PMV clogging Indoor outdoor heat exchanger clogging SV2 circuit error SVA circuit error SV5 circuit error Outdoor I F P C board error Operation er
111. epair faulty parts Check indoor P C board Failure Replace Repair faulty parts YES Is there clogging of indoor air filter or heat exchanger 4 Fan NO Is indoor PMV normal Is connector connection NO S08 or coil normal YES YES 5 YES Refrigerant shortage or clogging or pipe deformed Is there clogging on whole valve NO B Heating Is outdoor fan normally operated in heating season YES S Is there clogging of outdoor heat exchanger NO Is outdoor PMV normal NO YES Cleaning Replace PMV body Is indoor fan system normal Check outdoor Fan crack I F board Fan coming off Failure Replace YE Cleaning Repair faulty parts Refrigerant shortage clogging pipe deformed 80 Check code name H07 d7 Current code Are balance pipe valves NO FILE NO SVM 05052 Check code name Cause of operation Oil level down detection protection Valves of balance pipes closed Miscabling or misinstallation of TK1 to TK4 sensors TK1 to TK4 sensor error Gas leak or oil leak of all outdoor units Refrigerant stagnation of compressor case SV3A 3B 3D 3C 3E valve error Clogging of oil return circuit from oil separator Clogging of oil equation circuit system Open balance pipe valves fully of all outdoor units in same line fully opened Are TK1
112. es and the flap starts swinging if any 118 FILE NO SVM 05052 3 Using the set temperature a _ __w__ buttons the item code DN can be moved up and down one by one 3 4 First change the item code DN from Z to 77 Setting of filter sign lighting time Make a note of the set data displayed in this time 5 Next change the item code DN using the set temperature __a__ __w__ buttons Also make a note of the set data 6 Repeat item 5 and made a note of the important set data as shown in the below table to Aare provided in the item code DN On the way of operation DN No may skip 7 After finishing making a note push button to return to the usual stop status 4 Approx 1 minute is required to be able to use the remote controller Minimum requirements for item code Contents Indoor unit capacity Refrigerant line address 3 Indoor unit address Group address mh Capacity of the indoor unit is necessary to set 2 the revolutions of the fan 12 Replacement of service P C board 1 Replace the P C board with a service P C board In this time setting of jumper line cut or setting of DIP switch on the former P C board should be reflected on the service P C board Refer to the following table about DIP switch setting and drawing of P C board
113. f oxygen is caused For the installation moving reinstallation work follow to the Installation Manual If an incorrect installation is done a trouble of the refrigerating cycle water leak electric shock or fire is caused Check after rerair After repair work has finished check there is no trouble If check is not executed a fire electric shock or injury may be caused For a check turn off the power breaker After repair work installation of front panel and cabinet has finished execute a test run to check there is no generation of smoke or abnormal sound If check is not executed a fire or an electric shock is caused Before test run install the front panel and cabinet Check after reinstallation Check the following items after reinstallation 1 The earth wire is correctly connected 2 The power cord is not caught in the product 3 There is no inclination or unsteadiness and the installation is stable If check is not executed a fire an electric shock or an injury is caused N CAUTION Put on gloves Be sure to put on gloves during repair work If not putting on gloves an injury may be caused with the parts etc Heavy gloves such as work gloves Cooling check When the power was turned on start to work after the equipment has been sufficiently cooled As temperature of the compressor pipes and others became high due to cooling heating operation a burn may be caused FIL
114. ger ventilating fan is installed in the system The fan can be operated even if the indoor unit is not operating Use a fan which can receive the no voltage A contact as an outside input signal n a group control the units are collectively operated and they can not be individually operated 1 Operation Handle a wired remote controller in the following procedure Use the wired remote controller during stop of the system Be sure to set up the wired remote controller to the header unit Same in group control In a group control if the wired remote controller is set up to the header unit both header and follower units are simultaneously operable 1 Push concurrently SET CL F buttons for 4 seconds or more The unit No displayed firstly indicates the header indoor unit address in the group control In this time the fan of the selected indoor unit turns on 2 Every pushing sively In this time the fan of the selected indoor unit only turns on 3 Using the setup temp Jor vw J button specify the item code 7 Z using the timer time 4 or v button select the setup data At shipment LLL The setup data are as follows button the indoor unit numbers in group control are displayed succes Setup data Handling of operation of air to air heat exchanger or ventilating fan 0000 Unavailable At shipment 200 Available 5 Push ser button OK if display goes on
115. he network adaptor board 1401 YES YES Failure Replace 109 FILE NO SVM 05052 7 5 1 Indoor Unit Temperature sensor characteristics 20 Characteristic 1 Indoor TA sensor Resistance kQ 0 10 20 30 40 50 Temperature Characteristic 2 Indoor TC1 2 sensors 200 Resistance 10 C or higher Resistance 10 C lower 0 30 20 10 0 10 20 30 40 50 60 70 80 90 100 Temperature 110 FILE NO SVM 05052 8 CONFIGURATION OF CONTROL CIRCUIT 8 1 Indoor Controller Block Diagram 8 1 1 Case of Main Sub Remote Controller Connected Joopino yun Joopino Joopino l1V3H 7009 NO Apeoy uev uelis 9N0901 episino 6 0 8H e qejreAeun si uej Joopu qns Jo 2 dno46 qa ped Josuas 618 0900 Ke dsip 10sues J9 01 U00 Iowy 1031u05 2 0 ay dno46 e qejoeuuoo 8
116. ion Dry operation Heating operation Cooling or HEAT operation mode is automatically selected by Ta and Ts and the unit starts operation 2 Operation commend permission mode Neither AUTO mode of the standard model nor HEAT mode of Cooling only model can be selected When a wireless remote control is used the mode is notified by the receiving sound Pi Pi Twice and alternative flashing of and To release the alternative flashing change the mode on the wireless remote controller Room temp 1 Adjustment range Set temperature on remote controller control imsoo ngdrymg inhea ng Wired type 18 to 29 18 to 29 Wireless type 17 to 30 C 17 to 30 2 From the item code 06 the setup temperature in heating operation can be corrected Setup data Los 6 Heating suction temperature Setup temp correction shift Setup at shipment Setup data Automatic 1 Based upon difference between Ta and Ts the operation Ta Room temperature capacity frequency of the outdoor unit varies Ts Setup temperature control Air volume 1 By the command from the remote controller HIGH HH HH gt gt gt control MED H or LOW L AUTO operation is executed L gt L gt Lb For the wireless remote controller type HH H H L AUTO operation is executed 2 While air speed is in AUTO mode
117. k valve capillary clogging strainer clogging Refrigerant stagnation in compressor shell YES Is not TK2 sensor detached Correct installation of sensor NO Correct miscabling misinstallation TK4 CN523 Is there no miscabling or misinstallation N YES ie UM f on TK1 TK2 TK3 TK4 sensors TK3 CN516 NO Are characteristics of TK2 sensor resistance value normal YES NO Outdoor unit temp sensor characteristics 4 YES Does OCR of MG SW operate Reset OCR manually 2 NO After power reset Start a test operation in COOL or HEAT mode Replace clogging part Y TK2 sensor temp is displayed on 7 segment display with SW01 02 03 1 12 2 Y Check TK2 sensor temp approx 10 minutes after compressor 2 has operated If low temperature continues approximately outside temp or temperature does not almost change a clogging of strainer of oil equalization circuit clogging of capillary or malfunction of check valve is considered Check the clogging of SV3E valve 7 1 Refer to item H07 error Check I F P C board Compressor 2 No error Capillary tube Error Oil tank No error Replace SV3E valve 2 f OCR operates even after manual reset of OCR check whether the wiring to the current sensor TO2 of Comp IPDU is correct or not 85 FILE NO SVM 05052 Check code name Check code name Cause of operation H16 d7 TK3 temperature
118. le If the FILTER lamp on the indoor unit is indicated press the FILTER button on the remote controller or the TEMPORARY button on the indoor unit to turn off the lamp Cleaning the air inlet grille 1 Remove the air inlet grille Hold the two sides of the air inlet grille and open upwards Move the center arm to the left and remove the grille 2 Wash it with water using a soft sponge or towel Do not use metallic scrubbing brush or other hard brushes Use of such hard objects will cause scratches on the surface of the grille and the metal coating to peel off f very dirty clean the air inlet grille with a neutral deter gent for kitchen use and rinse it off with water 3 Wipe out water from the air inlet grille and dry it 4 Fitthe left and right arms of the air inlet grille to the shafts on the two sides of the air conditioner and push in com pletely and then push in the center arm 5 Check that the center arm has been completely inserted and close the air inlet grille Push the arrow locations Four at the bottom of the air inlet grille to check whether the grill is completely closed
119. ler This check is used for operation check of indoor unit The specified operation such as indoor fan drain pump ON etc is executed without communication with outdoor unit or remote controller DISP Display mode Display mode input OV Display mode communication is enabled by indoor unit and remote controller only When power supply is turned on Timer short Usual EXCT Demand Demand input oV 36 Indoor unit forced thermo OFF operation FILE NO SVM 05052 7 TROUBLESHOOTING 7 1 Troubleshooting Summary 1 Before troubleshooting 1 Applied models All Super Module Multi system type models Indoor unit Outdoor unit 2 Required tools measuring devices Screwdrivers Philips Minus spanner radio pinchers nipper push pin for reset switch etc Tester thermometer pressure gauge etc 3 Confirmation before check The following items are not troubles Operation Check items Compressor does not operate Is not delayed for 3 minutes 3 minutes after compressor OFF Is not thermostat OFF Is not the fan operating or timer Is not the system initially communicating Indoor fan does not work Is not the cold draft prevention being controlled in heating operation Outdoor fan does not rotate or Is not low cooling operation being controlled fan speed changes Is not a defrost operation being performed Indo
120. logging strainer clogging Refrigerant stagnation in case of compressor shell YES Correct installation of sensor Is not TK1 sensor detached NO Is there no miscabling or misinstallation on TK1 TK2 TK3 TK4 sensors NO Are characteristics of TK1 sensor NO Outdoor unit temp sensor characteristics 4 YES Error Correct miscabling misinstallation YES TK1 CN514 TK2 CN515 Characteristics 4 TK3 CN516 TK4 CN523 Start a test operation in COOL or HEAT mode Replace clogged part TK1 sensor temp is displayed on 7 segment display with SW01 02 03 1 11 2 Check TK1 sensor temp approx 10 minutes after compressor 1 has operated If low temperature continues approximately outside temp or temperature does not almost change a clogging of strainer of oil equalization circuit Compressor 1 clogging of capillary tube or malfunction of check valve is considered No error Strainer Capillary tube TK1 Check the clogging of SV3E valve Error Note 1 Note 1 Refer to item HO7 error Replace SV3E valve No error Check I F P C board 84 FILE NO SVM 05052 Check code name Check code name Cause of operation H16 d7 Oil level detective circuit system error 1 Detachment of TK2 sensor miscabling Current code AI NET Sub code 02 characteristics error of resistance value Oil equalization circuit error Chec
121. ls adjustment of projection margin is necessary For this adjustment a copper pipe gauge etc are necessary Note 2 Charging cylinder for R410A is being currently developed General tools Conventional tools can be used In addition to the above exclusive tools the following equipments which serve also for R22 are necessary as the general tools 1 Vacuum pump Use vacuum pump by 2 3 4 5 6 Also prepare the following equipments for other installation method and run check 1 attaching vacuum pump adapter 2 Torque wrench Pipe cutter Reamer Pipe bender Level vial Clamp meter 2 Thermometer Hexagon wrench Opposite side 4mm Tape measure Metal saw 3 Insulation resistance tester 4 Electroscope 5 Recharge of Refrigerant FILE NO SVM 05052 When recharge of the refrigerant is required charge the new refrigerant with the specified amount in the procedure as described below Recover the refrigerant and check there is no refrigerant in the equipment Connect the charge hose to the packed valve service ports at gas side liquid side and balance side of the outdoor unit Connect the charge hose to vacuum pump adaptor Open the packed valves of the balance pipe fully at liquid and gas sides and then return the valve at gas side a little to the closed side Open fully PMV of the outdoor unit Turn on power of the outdoor unit Short CN30 on I F
122. nd the check contents from the list according to part to be checked In case of check from indoor remote controller See Main remote controller display in the list In case of check from outdoor unit See Outdoor 7 segment display in the list In case of check from AI NET central control remote controller See Al NET central control display in the list However connection with central control is disabled for the wall type 2 series In case of check from indoor unit with wireless remote controller See Sensor block display of receiving unit in the list Check code FILE NO SVM 05052 IPDU Intelligent Power Drive Unit O Lighting amp Flashing Goes off ALT Flashing is alternately when there are two flashing LED SIM Simultaneous flashing when there are two flashing LED Wireless remote controller Main remote Outdoor 7 segment display controller display Sub code AI NET central control display Sensor block display of receiving unit Ready Timer Operation Flash i 1 Check code name Communication error between indoor and remote controller Detected at remote controller side Judging device Remote controller Sending error of remote controller Remote controller Communication error between indoor and remote controller Detected at indoor side Indoor Communication circuit error between indoor and outdoor De
123. ner to a new place or move it to another place and to observe the following items If the air conditioner is inappropriately by installed by yourself it may cause electric shock or fire Do not install the air conditioner in the following places Do not install the air conditioner in any place within 1 m from a TV stereo or radio set If the unit is installed in such place noise transmitted from the air conditioner affects the operation of these appliances Do not install the air conditioner near a high frequency appliance sewing machine or massager for business use etc otherwise the air conditioner may malfunction Do not install the air conditioner in a humid or oily place or in a place where steam soot or corrosive gas is generated Do not install the air conditioner in a salty place such as seaside area Do not install the air conditioner in a place where a great deal of machine oil is used Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside area or on the roof or upper floor of a building Do not install the air conditioner in a place where sulfureous gas generated such as in a spa Do not install the air conditioner in a vessel or mobile crane Be careful with noise or vibrations Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet annoys your neighbors Install the air conditioner on a solid and stable foundation
124. ng Current code AI NET Sub code 04 characteristics error of resistance value Check clogging and malfunction of SV3E valve circuit Oil equalization circuit error Check capillary clogging strainer clogging Refrigerant stagnation in compressor shell YES Is not TK4 sensor detached Correct installation of sensor NO Correct miscabling misinstallation Is there no miscabling or meis ta Hon YES on 1 2 4 sensors TK3 CN516 TK4 CN52 NO CN523 Are characteristics of TK4 sensor resistance value normal YES YES Does OCR of MG SW operate Reset OCR manually 2 NO i No error Check the of SV3E valve Check board 1 Refer to item HO7 error 2 f OCR operates even after manual reset of OCR check whether the wiring to the current sensor TO2 of Comp IPDU is correct or not Replace SV3E valve Check the clogging of SV3E valve NO Sensor error Replace Error 87 FILE NO SVM 05052 Check code name Check code name Cause of operation L03 96 Duplicated indoor header units There were two or more indoor header Current code AI NET units in some remote controller group control 1 Check the connection changing of the remote controller after the connection has been changed 2 If the group configuration and address are normal when power has been turned on the mode automatically shifts to addres
125. ns 1 TC1 gt 12 and TC2 gt 12 and TCJ gt 12 2 20 minutes passed after stop P1 MO C 5 C 10 C Q1 0 C 14 C 2 In cooling operation the air conditioner operates as described below based upon temp detected by TC2 and TCJ sensors When M zone is detected for 45 minutes the forced thermo is OFF In zone the timer count is interrupted and held When shifting to M zone again the timer count restarts and continues If L zone is detected the timer is cleared and the operation returns to normal operation Reset conditions 1 TC1 gt 12 and TC2 gt 12 and TCJ gt 12 2 20 minutes passed after stop C 1 P2 Q2 M 25 Recovery control for cooling refrigerant and oil Outline of specifications 1 The indoor unit which stops operation thermostat is OFF or operates in FAN mode opens PMV of the indoor unit by the specified opening degree when signal of refrigerant recovery or oil recovery is received 2 The indoor fan operates for approx 1 minute during controlling the recovery or after recovery control has finished FILE NO SVM 05052 Remarks Recovery operation 15 usually executed every 2 hours Recovery control for heating refrigerant and oil The indoor unit which stops operation thermostat is OFF or operates in FAN mode performs the following controls when signal of refrigerant recovery or oil recovery is receiv
126. nual Please read this Service Manual after understanding the described items thoroughly in the following contents and keep them Check earth wires Before troubleshooting or repair work check the earth wire is connected to the earth terminals of the main unit otherwise an electric shock is caused when a leak occurs If the earth wire is not correctly connected contact an electric engineer for rework 2 Prohibition of modification Do not modify the products Do not also disassemble or modify the parts It may cause a fire electric shock or injury Use specified parts For spare parts use those specified If unspecified parts are used a fire or electric shock may be caused For details refer to the parts list Do not bring a child close to the equipment Before troubleshooting or repair work do not bring a third party a child etc except the repair engineers close to the equipment It causes an injury with tools or disassembled parts Please inform the users so that the third party a child etc does not approach the equipment Insulating measures Connect the cut off lead cables with crimp contact etc put the closed end side upward and then apply a water cut method otherwise a leak or production of fire is caused at the users side When repairing the refrigerating cycle take the following measures 1 Be attentive to fire around the cycle When using a gas stove etc be sure
127. of header outdoor unit to ON Usually OFF 63 Current code Communication error between indoor header and follower FILE NO SVM 05052 Check code Check code name Cause of operation E18 97 99 1 Regular communication between indoor header and follower is unavailable 2 Switch setup error of wall type P C board Are remote controller NO Correct remote controller inter unit cables A B normal Is there any disconnection of YES inter unit wire Correct connection of connector connector or wiring from terminal block of indoor unit NO NO Is a group control operation YES NO Check circuit wire Check power connection status Are powers of all indoor units turned on YES Is setup of the model SELECT SW SW02 on wall type board of normal NO of indoor unit gt Correct switch setup Bit 1 ON Bit 2 OFF Check indoor address Correct indoor address 64 Check indoor board Failure Replace FILE NO SVM 05052 Check code Check code name Cause of operation E19 96 Header outdoor units quantity error 1 Misconnection of inter unit cable between Current code indoor and outdoor 2 Outdoor I F board error Sub code 00 No header unit 02 Two or more header units Are not communication lines U1 U2 between indoor and outdo
128. ois snigis 40408 JOSUBS 711 apoo 29452 uonisod LAN IV apoo qns epoo yoay9 Aejdsip 46 FILE NO SVM 05052 Aejay jueuno 190AO 1 MS OIN jo Io io jo yoayD FEAS GENS OLAS EAS YEAS 10119 YOOYD 70 ul 5 yooyo y ui yea pue yea seb SenjeA 3 pue EYL ZAL EL JO SonsuejoeJeuo x99uo Sjosues YAL PUL SL LHL JO uonejeisur pue uonoeuuoo edid 2S yoouD eui Hulpuodsass09 y ui SHUN 499u3 sunoy 2 20 jisnonuguoo pejoejep eu dois uonoejep doup 10 uooeloJd eDeuous YOOUD uj uonejedo Ue xeu edid yOoyy AWd Joopui jo uedo eA eA Y29049 Y29049 10119 10Ssues 5
129. operation suppression zone where capacity is kept to the minimum overheating is prevented by lowering the temperature setting by 1 C after 1 hour and by 2 C after 2 hours of operation The room temperature is thus regulated between the set temperature and the operation suppression zone Operation suppression zone 1 hour 2 hours Set temperature Operation starts Set temperature 2 2 hours Operation starts Operation suppression zone 28 MEMORY operation Outline of specifications Start the air conditioner in the operation mode which you want the remote control to memorize 1 Press this button briefly to standby memorizing the setting All the icons currently displayed except for the clock display and mark flashes Press and hold the MEMO button for more than 3 seconds while the display flashes The mark is indicated and the setting is memo rized If you do not press the MEMO button within 3 seconds or if you press another button the MEMORY setting is cancelled Operation modes which can be memorized with the MEMO button are MODE Tempera ture FAN TIMER and Hi POWER FILE NO SVM 05052 Remarks 71 MB BH He Sor tE AUTO 5 RESET auro swine Eco TIM
130. or 318mm 10kQ at 25 C Heat exchanger sensor TC1 sensor 34 600mm 10kQ at 25 C Heat exchanger sensor TC2 sensor 6 800mm 10kQ at 25 C Heat exchanger sensor TCJ sensor 6 800mm 10kQ at 25 C 3 2 Name of Each Part Earth screw Earth screws are provided in the electric parts box Air inlet grille Air in the room is sucked from here Air filter Se Air outlet Air outlet flap Removes dust and trash Change the direction of the air to be Air filter is provided in the air inlet grille discharged according to cool heat mode 10 3 3 Parts Name of Remote Controller Operation section FILE NO SVM 05052 Using a remote controller maximum 8 indoor units can be operated After the operation contents have been once set up the remote controller can be operated by pushing ON OFF buttons only In reality only the selected contents are indicated the remote controller 1 8 Central control When turning on the leak breaker at the first time SET DATA flashes on the display part of the remote controller While this display is flashing the model is being automatically confirmed Accordingly wait for a while after SET DATA display has disappeared and then use Oe es ei gd Display 88 Tu as Ln i section Qoi ESD _ pacem IDEE Operation g aw
131. or connected to multiple outdoor units Is communication line between indoor and outdoor connected to one unit per 1 system YES Check I F board YES Connect communication line between indoor and outdoor to one unit per 1 system NO Connect communication line between indoor and outdoor Reference An outdoor unit connected with communication wires U1 U2 between indoor and outdoor is the header unit Checkcode _ code Check code name Cause of operation E20 42 Unit connected to other line When starting automatic indoor address a Current code during automatic address device in other line is connected z Sub code 01 Connection of outdoor in other line 02 Connection of indoor unit in other line Separate the wire between lines according to address setup method 65 FILE NO SVM 05052 Check code Check code name Cause of operation E23 15 Communication sending error Inter unit cable connection error between Current code between outdoor units outdoor units Communication connector connection error between outdoor units I F P C board error End terminal resistance setup error between outdoor units Is there no miscabling or disconnection on communication line between outdoor units YES Correct communication line NO Is connection of connector on outdoor I F P C board normal YES
132. or fan does not stop Is not after heat elimination operation being controlled after heating opera tion Start stop operation on remote Is not auxiliary unit or remote control being operated controller is unavailable 15 connecting wire of indoor unit or remote controller correct 2 Troubleshooting procedure When a trouble occurred advance the check operation in the following procedure Check the check display on the interface P C board of the Check the check display corresponding follower unit on the interface P C board of the header unit Check position or part Trouble in which trouble occurred NOTE While a check operation is performed a malfunction of the microprocessor may be caused due to condition of the power supply or the external noise If there is any noise source change wires of the remote controller and signal wires to shield wires 37 7 2 Check Method On the remote controller Main remote controller Central control remote controller and the interface board of the outdoor unit a check display LCD Remote controller or 7 segment display on the outdoor interface P C board to display the operation is provided Therefore the operation status can be known Using this self diagno sis function a trouble or position with trouble of the air conditioner can be found as shown in the table below 7 2 1 Check Code List The following list shows each check code Fi
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134. perate Repair check valve gt Replace Refrigerant overcharge clogging pipe breakage abnormal overload condition lt lt lt gt 02 02 62 104 Heating operation Does heating indoor fan FILE NO SVM 05052 Is connector connection of indoor NO normally operate NO Is indoor PMV normal Is connector connection coil normal YES YES Y Repair faulty parts heat exchanger fan or fan motor normal YES Repair faulty parts Are characteristics NO of sensor TC2 and resistance normal NO ES Replace TC2 or TCJ sensor NO Is there clogging a YES Replace PMV body Is check valve of main NO Repair check valve Replace discharge pipe normal YES Is there a cause to interfere operation of heat exchanger of indoor unit YES Eliminate the interfered causes 1 Air filter clogging 2 Heat exchanger clogging 3 Air short circuit NO NO Repair SV5 circuit Is SV5 circuit normal YES NO Are not indoor units of diferent reirigerant circuit connected S with miscabling check function YES of outdoor unit Refrigerant overcharge clogging pipe breakage abnormal overload condition Coil error choke of cable Se Check and correct cabling 105 FILE NO SVM 05052 Check code name Check code name Cause of operation
135. r assembly Take off fixing screws 2 pcs of electric parts box pull out slightly the electric parts box toward you and then remove drain guide 8 Take off earth screws attached to end board of the heat exchanger 9 Pull off the electric parts box toward you Caution in reassembling gt When mounting the electric parts box to the main unit follow the reverse procedure of removing Return sensors and lead wires to the original positions according to the diagram 113 Electric parts Screws hooking claw Terminal block cover Screw e al block cove Fixing for terminal block cover sensor ES Lead wire Bind band Fan motor connector Fixing screws for Earth screw electric parts box Part name PMV motor Procedure lt Caution in works gt Use spanners to remove PMV motor As the pipes are deformed do not use monkey spanners When there is 100 to the ceiling use a spanner below mm 1 Perform work of item D 2 Take off fixing screws 2 pcs of PMV cover and then remove PMV cover 3 Remove connector 6 Blue for PMV motor from the electric parts box 4 Take off bundling band of PMV motor lead wires 5 Using a spanner remove PMV motor Caution in reassembling gt Draw out lead wires of PMV motor from positions same to original positions before removing Ground lead wire FILE NO SVM 05052 Remarks Screw at PMV main unit side 14mm spanner Sc
136. r immediately after the operation has stopped a sound such as water flows may be heard and the operation sound may become larger for 2 or 3 minutes immediately after the operation has started They are flowing sound of refrigerant or draining sound of dehumidifier This is sound generated when heat exchanger etc expand and contract slightly due to change of temperature Various smell such as one of wall carpet clothes cigarette or cosmetics adhere to the air conditioner Flashes when power is turned on again after power failure or when power switch is turned on When cooling operation cannot be performed because another indoor unit performs heating operation When the manager of the air conditioner has fixed the operation to COOL or HEAT and an operation contrary to the setup operation is performed When fan operation stopped to prevent discharge of hot air Since refrigerant is flowed temporarily to prevent stay of oil or refrigerant in the stand by indoor unit sound of flowing refrigerant Kyururu or Shaa may be heard or white steam when other indoor unit operates in HEAT mode and cold air in COOL mode may be blow out Sound is generated when the expansion valve operates when power has been turned on Is the timer ON or OFF Does not operate Is it a power failure Is the power switch turned off Is the power fuse or breaker blown Has the protective device operated The operation l
137. rcuit or capillary is considered Repair the clogged part b Clogging check for SV3D valve While outdoor unit is operating set up SW01 02 03 2 1 3 to 7 segment display Hr 2 and push SW04 for 2 seconds or more Set up SWO2 6 and turn on SV3D valve 7 segment display Hr 3d If temperature is low at secondary side of the valve or it does not change clogging of valve capillary or strainer is considered in the figure 82 FILE NO SVM 05052 3 Check for solenoid valve of outdoor unit For multiple outdoor unit system a Clogging check for SV3A valve While outdoor unit is operating set up SW01 02 03 2 1 3 to 7 segment display Hr 2 and push SW04 for 2 seconds or more Set up SWO2 4 and turn on SV3A valve 7 segment display Hr 3A If temperature is low at secondary side of the valve or it does not change clogging of valve or check valve is considered Q in the figure b Leakage check for SV3C valve While outdoor unit is operating set up SW01 02 03 2 1 3 to 7 segment display Hr 2 and push SW04 for 2 seconds or more Set up SWO2 6 and turn on SV3C valve 7 segment display Hr 3C f temperature does not change up clogging of valve or strainer is considered in the figure 4 a Clogging check for oil equalization circuit Drive the outdoor unit Drive both compressors in the unit After driving for 10 min
138. rd Measurement by tester DCO to 5V 5 pin GND I F P C board error Both IPDU No 1 No 2 and fan IPDU did not return the communication Replace IPDU P C board with trouble 92 FILE NO SVM 05052 _ code Check code Cause of operation L30 b6 Interlock in indoor unit Outside error was input Current code from outside 15 outside device connected NO to connector CN80 YES Check indoor board Failure Replace NO Does outside device correctly operate YES Check cause of the operation Check code name Check code name Cause of operation Check outside device Failure Replace L31 Extended IC error 1 Outdoor unit power error Current code 2 Outdoor I F P C board error Is there any trouble of outdoor unit power supply NO Check outdoor I F P C board 93 Check power voltage and line Check auxiliaty noise etc FILE NO SVM 05052 Check code name Check code name Cause of operation P03 1E Discharge temp TD1 error Service valve of outdoor unit closed Current code AI NET Outdoor PMV error TD sensor error Refrigerant shortage clogging of refrigerant circuit system 4 way valve error SV4 circuit leakage misinstallation Are service valve of gas and liquid sides fully opened Open Service valve Tully YES
139. ressure sensor miscabling 1 High pressure Pd sensor and low Current code AI NET Pd Ps pressure sensor Ps are exchanged 2 Output voltage of each sensor is zero NO Correct connection of connectors Pd sensor CN501 Red Ps sensor CN500 White Are connection of Pd sensor and Ps sensor connectors correct YES Are output voltage characteristics of NO Gunsoraitarcy Replace Pd sensor and Ps sensor normal p YES 1 Pressure Check joint by pressure gauge 2 Pressure display on 7 segment display 3 Output voltage of I F P C board If 1 and 2 3 are different an error of pressure sensor itself is considered If 2 and 3 are different check interface P C board NO Check compressor Value can be confirmed by 7 segment display function on outdoor I F P C board Pd SW01 02 03 1 1 2 Ps SW01 02 03 1 2 2 Are Pd Ps output values Pd gt Ps during compressor operation YES Check outdoor I F P C board Defect Replace 73 FILE NO SVM 05052 _ code Check code Cause of operation F23 43 Ps sensor error Output voltage error of Ps sensor Current code 15 connection of Ps sensor connector correct NO Correct connection of connector YES Connector CN500 White Are output voltage characteristics NO Se sor error of Ps sensor normal YES 1 Pressure Check joint by pressure gauge 2 Pressure displa
140. rew at PMV motor side 19mm spanner Bind band P M V lead wire Horizontal grille 1 Remove shaft of the horizontal grille from the rear plate First remove the left shaft and then remove the other shafts while sliding the horizontal grille leftward 114 Part name Heat exchanger Procedure 1 Perform work of item 2 Remove the pipe holder from the rear side of the main unit 3 Take off fixing screws 2 pcs at the left side of the end plate of the heat exchanger 4 Take off fixing screws 2 pcs at the right side of the heat exchanger FILE NO SVM 05052 Remarks Pipe holder Fixing screws Bearing 1 Perform works of items D 9 4 and 5 and then remove bearing from the bearing base Caution to reassembly gt In case of shooting out of bearing part from the housing push into the specified position and incorporate in the main unit 115 Bearing base Bearing Drain pipe 2 FILE NO SVM 05052 Part name Procedure Remarks Fan motor 1 Perform work of item 2 Perform work of item 3 Loosen the set screw of the cross flow fan from the discharge port 4 Take off fixing screws 2 pcs to remove the motor band Right 5 Pull out the fan motor outward Assemble the fan motor as shown below T A L piim 02 screws
141. ror of check valve of main discharge pipe Refrigerant overcharge P20 22 High pressure protective operation Current code NO Are service valves fully opened Open service valves fully Are characteristics of NO Check parts high pressure sensor normal Failure Replace Reset power supply and start a test Cooling To operation corresponded to the season Heating To C 1 Pressure by pressure gauge Check joint 2 Pressure display on 7 segment display Cooling operation 3 Output voltage of I F P C board If 1 and 2 3 are different an error of pressure sensor is considered If 2 and 3 are different check I F P C board Does cooling outdoor fan NO Correct faultv parts normally operate y parts YES YES Is there no fan crack or coming off Correct faulty parts NO Connector connection fan IPDU fan motor cabling NO Is outdoor PMV normal Correct faulty position Connector connection wiring coil mounting valve clogging etc Is there a cause to interfere operation YES of heat exchanger of outdoor unit 1 Heat exchanger clogging 2 Air short circuit Eliminate the interfered causes Is SV2 circuit normal iin Repair SV2 circuit Coil error clogging disconnection of cable etc Is SV4 circuit normal Coil error clogging disconnection of cable etc NO Does check valve of main discharge pipe normally o
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143. s inserted in the card switch box 2 Outside contact OFF If the indoor unit is operating it is stopped forcedly Start Stop prohibited to remote controller Status that card is taken out from the card switch box When the card switch box does not perform the above contact operation convert it using a relay with b contact 2 Operation Handle the wired remote controller switch in the following procedure Use the wired remote controller switch during stop of the system 1 Push concurrently ser cL buttons for 4 seconds or more 2 Using the setup temp Jor vw button specify the item code 3 Using the timer time G or v button set 272 to the setup data 4 Push button button The status returns to the usual stop status Relay procured locally Pw oA T10 HH YEL 2 2 3 3 In the figure the contact indicates 414 status that the card is taken out 515 6 6 Indoor control P C board Power supply 77777777777 Outside contact Card switch box etc Procured locally Note Determine the cable length between the indoor control P C board and the relay within 2m Power peak cut from indoor unit When the relay is turned on a forced thermostat OFF operation starts Wiring example Relay procured locally CN73 Note Determine the cable length between the indoor or outdoor control P C board and the relay wi
144. s setup mode Re setup of address Refer to Address setup Check code name Check code name Cause of operation L04 96 Duplicated setup of outdoor line address Outdoor line addresses are duplicated Current code AI NET YES Is there duplicated line address setup Correct the line address setup qu Are communication cable connections of U1 U2 03 04 and U5 U6 normal Correct the cable connection Check outdoor I F P C board Failure Replace Re set up the address Refer to Address setup Check codename code Check codename Chekcodemme code Cause of operation of Cause of operation L05 96 Duplicated indoor units with priority 1 Two or more prior indoor units exist Current code AI NET Displayed on indoor unit with priority This check code is displayed on the set indoor unit when setup of indoor unit with priority is duplicated Priority setup with two or more units is not available Choose one prior unit in one refrigerant circuit system 88 FILE NO SVM 05052 Check code name Check code name Cause of operation L06 96 Duplicated indoor units with priority Two or more indoor units with priority Current code AI NET Displayed on the indoor unit other than are duplicated one with priority and on the outdoor unit Sub code No of indoor units with priority M
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146. sh Unit No display Alarm display eG UNTNo Jo 1 n Alternate flashing display 7 JULI R C No 42 FILE NO SVM 05052 Od YOSYD dnjes yooyD s Jeujo pue sdojs Jaysew se dnjes yyoq ssajauim Buipnjour JOUOD Je o1uo9 B OWAI Z U sdois Ajuo jun pereordnq 430 2 NO 1 eq pinoys Od ed y uo ZOMS euo SSeJppe jo dnjas uonoeuuoo jo eui yOSUD 55 2949 dnjes jun Joopur dn dois sesseJppe peyeojdnq pue uonoeuuoo eui 2 0 MS dn s eouejsisai euiuJe pue Joopino 29459 Spuooes 02 10 enunuoo jouueo 0 JOOPINO UOISSILUSUEJ dois epis 100pino Joopino 400pu enjrej 4 1 Od enjrej O d 1
147. t No in which check the error based upon the following Confirmation of an error occurred error history 2 Confirmation of error history When a trouble occurred on the air conditioner the error history can be confirmed with the following procedure Up to 4 error histories are stored in memory This history can be confirmed from either operating status or stop status Procedure Description When pushing SET and buttons simultaneously for 4 seconds or more the below display appears If Service Check is displayed the mode enters in the error history mode 01 Error history order is displayed in code number window A Check Code is displayed in check code window Z ade Indoor unit address with error is displayed in UNIT No 2 id Every pushing temp set a buttons the error histories stored the memory displayed order The numbers in item code indicates item code 01 Latest to 04 Oldest Do not push CL button because all the error histories of the indoor unit will be deleted After confirmation push 2 button to return to the usual display 41 FILE NO SVM 05052 7 3 2 In Case of TCC LINK Central Control Remote Controller TCB SC642TLE O 3 O s 1 RSS 61 5 1234 TN ddr F 16 68 aia
148. t capacity See below table According to capacity type Refrigerant line address 0099 Unfixed Indoor unit address 0099 Unfixed Group address 0099 Unfixed Temp difference of automatic cooling heating selecting control points 0003 3deg Ts 1 5 Automatic restart from power cut 0000 None Option input selection CN80 0002 External emergency input Thermo output selection T10 0000 Thermo ON Input selection T10 D 0000 Operation input Sensor selection 0000 Available Timer set Wired remote controller 0000 Available Flap selection of cooling Indoor unit capacity Item code 11 Setup data Model Invalid MMK AP0072H MMK AP0092H MMK AP0122H 0000 Standard Initial value of EEPROM installed on the supplied service board 122 FILE NO SVM 05052 11 EXPLODED VIEWS AND PARTS LIST 217 218 1 For TCJ TC2 For TC1 228 229 209 fj 3 a Lf e H aN Ve RNG N A AW NOTE These service parts are supplied by TCTC TCTC TOSHIBA CARRIER Thailand Co Location No Location No Description Description 43T00421 Front Panel Ass y 43T09370 Suction Grille 43T03326 Back Body Ass y 43T80301 Air Filter 43T09371 Horizontal Louver 43T70308 Drain Hose Ass y 43179301 Cap Drain 43T19321 Holder sensor 437
149. tected at indoor side Indoor No of indoor units in which sensor has been normally received Decrease of No of indoor units VF Communication circuit error of indoor and outdoor Detected at outdoor side VF Duplicated indoor addresses Duplicated indoor addresses Indoor VF nun e Duplicated master remote controllers Remote controller Indoor Outdoor communication Communication between outdoor units Automatic address start error VF No indoor automatic address VF 00 Capacity over 01 No of connected units No of connected indoor units Capacity over VF Communication error between indoor header and follower units Indoor No header unit Two or more header units Outdoor header units quantity error VF Outdoor of other line connected Indoor of other line connected Other line connected during automatic address VF Sending error in communication between outdoor units VF Duplicated follower outdoor addresses VF No of outdoor units which received signal normally Decrease of No of connected outdoor units VF Detected outdoor unit number uuu nuine e Follower outdoor error VF 01 IPDU1 error 02 IPDU2 error 03 IPDU1 2 error 04 Fan IPDU error 05 IPDU Fan IPDU error 06 IPDU2 Fan IPDU
150. ter unit cable normal Is connector connection from U1 U2 terminals of indoor outdoor inter unit cable normal NO Correct connector connection Is setup of the model SELECT SW SW02 on wall type P C board of normal Bit 1 ON Bit 2 OFF Correct switch setup YES YES bs Set up address again YES Check connection of inter unit cable between Is power applied to fuse F03 NO indoor and outdoor is correct and then connect communication line connector on indoor P C board CN40 to CN44 EMG YES Is there no noise etc Check noise etc and eliminate it if any NO on indoor P C board YY Check indoor board For details refer to Troubleshooting in test operation Defect Replace 58 FILE NO SVM 05052 Check code Check code name Cause of operation E06 04 Decreased number of indoor units 1 Communication lines U1 U2 connection Current code7 AI NET error between indoor and outdoor Connector connection error of communica tion for indoor P C board Connector connection error of communica tion for outdoor board Power supply of indoor unit Is power turned on Sub code No of indoor units which received signals normally Is there no miscabling disconnection on communication line betweenindoor and outdoor Is connection of CN40 connector on indoor board normal YES
151. the air speed is changed according to the difference between Ta and Ts 24 Prevention of cold air discharge Outline of specifications 1 In heating operation the upper limit of the fan tap is set by one with higher temperature of TC2 sensor and TCJ sensor When zone has continued for 6 minutes the operation shifts to C zone In defrost time the control point is set to 6 C A zone OFF 36 B zone Over 30 C below 32 C UL C zone Over 32 C below 24 C L D zone Over 24 C below 36 C H E zone HH FILE NO SVM 05052 Remarks In D and E zones priority is given to remote control ler air speed setup In A and B zones amp i displayed Freeze preven tion control Low temp release In cooling operation the air conditioner operates as de scribed below based upon temp detected by TC1 TC2 and TCJ sensors To prevent the heat exchanger from freezing the operation stops When J zone is detected for 5 minutes the forced thermo is OFF In zone the timer count is interrupted and held When 7 zone is detected the timer is cleared and the operation returns to the normal operation When the forced thermo OFF became 50 with continua tion of J zone operation of the the indoor fan in LOW L mode until it reaches the 7 zone It is reset when the following conditions are satisfied Reset conditio
152. the resistance is 2MW or more between the charge section and the non charge metal section Earth position If the resistance value is low a disaster such as a leak or electric shock is caused at user s side Ventilation When the refrigerant gas leaks during work execute ventilation If the refrigerant gas touches to a fire poisonous gas generates A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage of oxygen occurs Be sure to execute ventilation Be attentive to electric shock When checking the circuit inevitably under condition of the power ON use rubber gloves and others not to touch to the charging section If touching to the charging section an electric shock may be caused Compulsion When the refrigerant gas leaks find up the leaked position and repair it surely If the leaked position cannot be found up and the repair work is interrupted pump down and tighten the service valve otherwise the refrigerant gas may leak into the room The poisonous gas generates when gas touches to fire such as fan heater stove or cocking stove though the refrigerant gas itself is innocuous When installing equipment which includes a large amount of charged refrigerant such as a multi air conditioner in a sub room it is necessary that the density does not the limit even if the refrigerant leaks If the refrigerant leaks and exceeds the limit density an accident of shortage o
153. the unit If the air remains the pressure in the refrigerating cycle becomes abnormally high and an injury and others are caused due to burst FILE NO SVM 05052 1 CONSTRUCTION VIEWS EXTERNAL VIEWS Model MMK AP0072H AP0092H AP0122H Air inlet part 275 275 275 f 48 48 Qo Knockout Air outlet gril Knockout o o 790 EN 3 H 3 E EI 54 5 60 60 54 5 790 208 275 Hock for insulation plate A 321 Drain pipe Refrigerant pipe connecting port Refrigerant pipe connecting port Gas side 29 5 Liquid side 6 4 Installation space 2222222722211 2 4 100 ZF Z A 170mm or more 170mm or more 300mm or more gt NN gt N attached Flow Selector unit of Note All dimensions are in mm heat recovery model FILE NO SVM 05052 2 WIRING DIAGRAM pios WL JOSUSS TOL 105095 yeoH 291 Josues LOL JOSUSS
154. thin 2m 2 plug RED Relay coil signal Indoor control P C board 34 FILE NO SVM 05052 B Indoor P C Board MCC 1510 TCJ sensor Microcomputer operation LED CN102 DC 5V D02 TC sensor EEPROM Inter unit wire CN101 DC 5V CN67 AC 200V HA T10 CN61 DC 12V n lior Option power supply ect ONG AC 200V j Option output DC 12V CHK CN71 DC 5V DISP CN72 DC 5V a 8 we ics jer D Eo 47 a haar dg mg 0 wej Central control P CN40 DC 5V 3 Outside error input CN80 DC 12V EXCT CN73 DC 5V Remote controller power LED D203 TA sensor e CN104 DC 5V CN210 DRIVE M Remote controller CN41 DC 20V Terminator resistor provided not provided Fan drive DC fan input output anna controller A B switch CN32 DC 12V CN210 Wo1 Louver Display output Wireless sensor CN33 DC 20V CN213 DC 5V 35 Terminator resistor provided Not provided Remote controller A B 1 No terminator resistor Terminator resistor provided OFF Remote controller A ON Remote controller B FILE NO SVM 05052 Pas P C Board Optional Switch Connector Specifications Specifications Remarks Setup at shipment OFF No terminator resistor Only 1 unit is ON during central control by custom only Se
155. tly and also the refrigerant cycle is working correctly by test operation lt Replacement procedure gt CASE 1 Before replacement power of the indoor unit can be turned on and the setup data can be readout by the wired remote controller Read EEPROM data see 011 in Page 118 119 Replace service board amp power ON see 02 119 120 Write the read data to EEPROM see 03 121 If in group operation reset the power for all indoor units which are connected to the remote controller CASE 2 Before replacement the setup data can not be read out by the wired remote controller Replace service board amp power ON see 02 in 119 120 Write the data such as option input selection setup to EEPROM see 13 Page 121 According to the customers information 01 Readout of the setup data from EEPROM Data in EEPROM contents which have been changed at the local site are read out together with data in EEPROM set at shipment from the factory 1 Push cL and gt buttons of the remote controller at same time for 4 seconds more 7 Corresponded with No in Remote controller as shown below picture When group operation the header indoor unit address is displayed at the first time In this time the item code DN Gis displayed The fan of the second indoor unit operat
156. to put out fire before work otherwise the oil mixed with refrigerant gas may catch fire 2 Do not use a welder in the closed room When using it without ventilation carbon monoxide poisoning may be caused 3 Do not bring inflammables close to the refrigerant cycle otherwise fire of the welder may catch the inflammables Refrigerant Check the used refrigerant name and use tools and materials of the parts which match with it For the products which use R410A refrigerant the refrigerant name is indicated at a position on the outdoor unit where is easy to see To prevent miss charging the route of the service port is changed from one of the former R22 For an air conditioner which uses R410A never use other refrigerant than R410A For an air conditioner which uses other refrigerant R22 etc never use R410A If different types of refrigerant are mixed abnormal high pressure generates in the refriger ating cycle and an injury due to breakage may be caused Do not charge refrigerant additionally If charging refrigerant additionally when refrigerant gas leaks the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury Therefore if the refrigerant gas leaks recover the refrigerant in the
157. tup at shipment OFF Remote controller A Fan output Swot CN32 DC12V Output Start Stop input Setup at shipment Linked operation of ON with operation of indoor unit and OFF with stop The setup of single operation by FAN button on remote controller is executed from remote controller DN 31 HA Start Stop input J01 Provided Not provided Pulse At shipment from factory Static input switch Handy prohibition input Operation stop of handy remote controller is permitted prohibited by input Operation output ON during operation Answer back of HA DC12V COM Alarm output ON during output of alarm Optional output Outside error input CHK Operation check DC12V COM i Defrost output ON during defrosting of outdoor unit ES Thermo ON output ON when Real thermo ON Comp ON Cooling output ON when operation mode is cooling line Cool Dry Cooing Heating AUTO cooling Heating output DC12V COM DC12V COM Filter Option Outside error input Check mode input OV ON when operation mode is heating line Heat Cooling Heating AUTO heating At shipment from factory the error code L30 generates and optional error input to stop operation forcedly DN 2A 1 is controlled Display of protection for devices attached to outside by setup of outside error input DN 2A 2 for 1 minute Optional error input control is set up on the remote control
158. unit In heating operation Dust or waste adheres excessively to air filter of the indoor unit The discharge port of the indoor unit is closed If the protective device works turn off the main power switch solve the cause and then start the operation again Cooling Heating operation of Super Modular Multi system air conditioner Although each indoor unit can be individually controlled in the Super Modular Multi system air conditioner the cooling operation and the heating operation cannot be simultaneously performed in the multiple indoor units which are connected to an outdoor unit If the cooling operation and the heating operation are simultaneously performed the indoor unit which executes cooling operation stops and on the operation section lights up On the other hand the indoor unit which executes heating operation continues running In a case that the manager of the air conditioner has fixed the operation to cooling or heating an operation other than that set up is unavailable If an operation other than that set up is executed amp on the operation section lights up and the operation stops Characteristics of heating operation The wind is not out just after starting an operation The hot wind starts to blow 3 to 5 minutes after Time differs according to indoor outdoor tempera ture the indoor heat exchanger has warmed up During operation the outdoor unit may stop if the outside temperatur
159. unt the cross flow fan so that the right end of joint which is first one from right of the cross flow fan is set at position 70 5mm apart from wall of the rear side of the main unit Cross flow fan Mount the cross flow fan so that D cut central part at the center comes to the mounting hole of set screw Determine the position of fan motor as shown in the figure for mounting Perform work of item When attaching motor band Right perform work of item b set the hooking claws 2 positions of the motor band Right in the main unit and then perform reverse procedure of item 6 Motor band Hooking claws Right 2 positions 117 FILE NO SVM 05052 10 REPLACEMENT OF SERVICE INDOOR BOARD Model type board model Label display on board 2H series MCC 1510 04DD M01 Requirement when replacing the service indoor P C board assembly In the non volatile memory Hereinafter said EEPROM IC 10 installed on the indoor board before replace ment the type and capacity code exclusive to the corresponding model have been stored at shipment from the factory and the important setup data such as refrigerant line indoor unit group address in AUTO MANUAL mode have been stored at installation Replace the service indoor PC board assembly according to the follow ing procedure After replacement make sure that the indoor unit address is set correc
160. uolyesado eui paes JosseJduioo pejoejep JOU pjhoo pxL Jo eunjejeduue HDO 10 MS OIN Y09490 1945 JosseJduioo ui uoneuBejs xoeuo pue jo Medeo uoineJedo JELAS YOOUD py pue EYL ALYY en E e2uejsiseJ JOSUBS M JO sorisuejoeeuo YOOYD 10sues Y08049 uoneJjedo eui paes ufnoui pejoejep Jou pjhoo Ey 1 jo 10 MS OW Y09949 1945 JosseJduioo ui uoneuBejs jueJe61je1 YOOUD dois pue uomezijenbe Aedes yoy uoneJedo 3 AS YOOUD uorpeuuooSIu pue EYL ALWYD anfen 99Ue1SIS9J JOSUOS ZYL JO Josues zy Y20949 uoneJjedo eui paes z 1 5 pejoejep 1ou pjnoo ZAL Jo eunjejeduue HOO 10 MS DW 84D 5 YOoUD eA e dois 10113 pue jo fuejdeo xoeuo FEAS 10 uomnejedo t pue EY LHL 0990 en eA 5 5 1 JOSUBS JO
161. utes check temperature of TK1 and TK2 sensors and temperature of oil equalization circuit capillary in the figure were raised Criterion TK1 TK2 Td1 Td2 temperature Approx 10 to 30 C Oil equalization capillary tubes should be higher sufficiently than outside air temperature and suction temperature If temperature is low a malfunction of capillary strainer or check valve is considered Repair the defective parts High pressure sensor Check joint Solenoid valve High pressure SW Balance pipe Packed valve 83 FILE NO SVM 05052 Check code name Check code name Cause of operation 08 d4 Oil level detective TK1 to TK4 sensor Open Short Current code temperature sensor error Sub code 01 TK1 sensor error 02 TK2 sensor error 03 TK3 sensor error 04 TK4 sensor error M The detected error is an oil level detective temperature sensor error Check disconnection of the wiring and resistance value of the sensor If the sensors are normal replace the outdoor I F P C board Circuit Connector TK1 CN514 Black TK2 CN515 Green TK3 CN516 Red TK4 CN523 Yellow Check code name Check code name Cause of operation H16 d7 TK1 temperature detective circuit error 1 Coming off of TK1 sensor miscabling Current code AI NET Sub code 01 characteristics error of resistance value Oil equalization circuit error Check valve capillary c
162. xeu uoug uedo 0192 JO 5 Josues eouejsiseH dois 0448 4 1 JOOPINO ANJA 5 JOSUBS ZYL JO YOOYD JOjoeuuoo 108095 ZYL jo uonoeuuoo xeu uoug uedo JO S 105095 oouejsisoH dois 4 1 O d Joopino Y09349 819 1 Josues Jo sonsuejoereuo YOOYD JOjoeuuoo J0sues 10 uonoeuuoo xeu uonisod way 49949 uoug uedo JO 5 Josues en eA eouejsisoH uonipuoo 1043 dois snes 10119 105 95 dw 949 po 29u5 uonisod 10 LAN IV 10119 JOSUOS 0 JOSUOS 20 101149 JOSUOS ZYL 20 10119 JOSUOS 10 apoo qns apoo yoay9 Ae dsip 1 apoo 48 FILE NO SVM 05052 JennuusueJ JeAieoeH snouoJupou Sy eSJOAIUN LH VQ Od 4 pue ue A849 HYN Jo uonoeuuoo yOsYD preoq Od J JO dnies SS8 sem pejoejep SHUN JO ON dois Ajjuenb
163. xing screws of the front panel 4 pcs 3 Push the electric parts box with right thumb while pulling the both sides of the front panel lt Attachment of front panel gt 1 Hang the hooking claws of the upper surface of the front panel 4 positions to the rear plate and then push a position at the center of the lower part of the discharge port 2 Tighten 4 screws When hooking or pushing is insuffi cient dewdrop or abnormal sound may be caused Remarks Installation place Claw Push 5 Hooking claws at upper side 4 positions Electric parts assembly 1 Perform work of item D 2 Take off fixing screws 2 pcs of PMV cover and then remove PMV cover 3 Remove binding band 2 positions fixing the sensor lead wires When mounting electric parts fix the sensor lead wires again with bundling band Put bundling band on the positions as before and fasten wires Pull out TC1 TC2 TCJ sensors from sensor holder of hear exchanger Pay attention to mounting positions of each sensor when reassembling of electric parts Be sure to apply marking etc to TC2 and TCJ sensors before removing because their shapes are reassembled Take off LED base fixing screw 1 pc and remove LED base Remove terminal block cover and then remove fan motor connector 5P louver motor connector 5P and PMV motor connector 6P from microcompute
164. y on 7 segment display 3 Output voltage of I F P C board If 1 and 2 3 are different an error of pressure sensor itself is considered If 2 and 3 are different check interface P C board Check compressor Is not refrigerant by passed from discharge to suction of 4 way valve Is there no leakage from SV4 valve YES Replace SV4 valve Check 4 way valve Check codename code name Check code name Cause of operation F24 43 Pd sensor error Output voltage error of Pd sensor Current code AI NET It is output voltage error of Pd sensor Check disconnection of connection of connector Pd sensor CN501 circuit and output voltage of sensor If the sensor is normal replace outdoor I F P C board 74 FILE NO SVM 05052 _ code Check code name Cause of operation F29 12 Indoor other error Indoor board error Current code EEROM error This error is detected during operation of air conditioner of IC10 non volatile memory EEPROM on indoor unit P C board Replace service P C board If EEPROM was not inserted when power was turned on or it is absolutely impossible to read write EEPROM data the automatic address mode is repeated In this case 97 error is displayed on AI NET central controller Approx 3 minutes Approx 1 minute Power ON SET DATA is displayed gt SET DATA LED 002 1

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