Toshiba MMC-AP0188HPUL Service Manual Download Page 1

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SERVICE MANUAL

AIR-CONDITIONER

(MULTI TYPE)

INDOOR UNIT

<Ceiling type>

MMC-AP01

MMC-AP024

MMC-AP0

MMC-AP048

SVM-13085.indb 1

December

FILE NO. SVM-20102

Summary of Contents for MMC-AP0188HPUL

Page 1: ...VICE MANUAL AIR CONDITIONER MULTI TYPE INDOOR UNIT Ceiling type MMC AP0188HPUL MMC AP0248HPUL MMC AP0308HPUL MMC AP0368HPUL MMC AP0488HPUL SVM 13085 indb 1 SVM 13085 indb 1 December 2020 FILE NO SVM 20102 ...

Page 2: ...ONTENTS SAFETY CAUTION 3 13 1 CONSTRUCTION VIEWS EXTERNAL VIEWS 2 WIRING DIAGRAM 3 PARTS RATING 4 REFRIGERATION CYCLE DIAGRAM 18 5 CONTROL OUTLINE 19 6 CONFIGURATION OF CONTROL CIRCUIT 28 7 APPLIED CONTROL 36 8 TROUBLESHOOTING 50 9 DETACHMENTS 84 10 REPLACEMENT OF SERVICE P C BOARD 94 11 EXPLODED VIEWS AND PARTS LIST 99 SVM 13085 indb 2 SVM 13085 indb 2 12 24 13 10 56 AM 12 24 13 10 56 AM 16 17 2 ...

Page 3: ... person who is allowed to work at heights has been trained in matters relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or alternatively he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work s The qualified installer is a person who inst...

Page 4: ...d that a danger causing a death or serious injury of the repair engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed Indicates contents assumed that an injury or property damage may be caused on the repair engineers the third parties and the users due to troubles of the product after work when an incorrect work has been execut...

Page 5: ...ot operate unit with grille removed Stop the unit before the servicing Moving parts Do not operate unit with grille removed Stop the unit before the servicing CAUTION CAUTION High temperature parts You might get burned when removing this panel High temperature parts You might get burned when removing this panel CAUTION CAUTION Do not touch the aluminium fins of the unit Doing so may result in inju...

Page 6: ...f the electric parts box of Indoor Unit and or front panel of Outdoor Unit inevitably to determine the failure put a sign Do not enter around the site before the work Failure to do this may result in third person getting electric shock Place a Work in progress sign near the circuit breaker while the installation maintenance repair or removal work is being carried out There is a danger of electric ...

Page 7: ...th the rotation parts Only a qualified installer or qualified service person is allowed to remove the intake grille and do the work required Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws Use of wiring which does not meet the specifications may give rise to electric shocks electrical leakage smoking and or a fire Only a qu...

Page 8: ...nd lead the removed wires as before Perform the work so that the cabinet or panel does not catch the inner wires If incorrect assembly or incorrect wire connection was done a disaster such as a leak or fire is caused at user s side After the work has finished be sure to use an insulation tester set 500V Megger to check the resistance is 1MΩ or more between the charge section and the non charge met...

Page 9: ...r or the area around this part to be repaired immediately after the air conditioner has been shut down set the circuit breaker to the OFF position and then wait at least 10 minutes before opening the service panel If you fail to heed this warning you will run the risk of burning yourself because the compressor pipes and other parts will be very hot to the touch In addition before proceeding with t...

Page 10: ...ipulations in the local regulations and laws Install the circuit breaker where it can be easily accessed by the agent Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner otherwise it may cause imperfect combustion Explanations given to user If you have discovered that the fan grille is damaged do not approach the outdoor unit but set the cir...

Page 11: ...ffected 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 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 t...

Page 12: ...pter 7 Screwdriver h c n e r w y e k n o M r o r e n n a p S 8 h c n e r w e u q r o T 2 l l i r d e r o c e l o H 9 r e t t u c e p i P 3 m m 4 e d i s e t i s o p p O h c n e r w n o g a x e H 0 1 r e m a e R 4 e r u s a e m e p a T 1 1 r e d n e b e p i P 5 w a s l a t e M 2 1 l a i v l e v e L 6 Also prepare the following equipments for other installation method and run check r e g g e M r e t...

Page 13: ...ut 6 9 176 8 1 205 9 6 244 Drain pipe connection port Front side to be positioned horizontally Space required for installation and servicing 12 9 328 12 4 313 4 9 125 3 5 87 1 3 33 7 6 191 Remote controller wire take in port Knockout hole Air take in port Duct sold separately Knockout hole Ø3 6 92 13 9 353 Left drain pipe draw out port Knockout hole 9 8 250 or more 19 7 500 or more 4 0 102 7 6 192...

Page 14: ...sold separately Knockout hole Ø3 6 92 13 9 353 3 5 87 Remote controller wire take in port Knockout hole 1 3 33 7 6 191 Left drain pipe draw out port Knockout hole 9 8 250 or more 9 8 250 or more 19 7 500 or more Space required for installation and servicing Refrigerant pipe connecting port Ø3 8 9 5 Liquid side Refrigerant pipe connecting port Ø5 8 15 9 Gas side 8 6 218 4 3 109 2 6 66 1 8 40 1 9 48...

Page 15: ... Power supply wire take in port khockout hole Ø1 6 40 Air take in port Duct sold separately Knockout hole Ø3 6 92 4 9 125 Front side to be positioned horizontally 9 8 250 or more 9 8 250 or more 19 7 500 or more Space required for installation and servicing 9 3 235 Piping draw out port Knockout 6 9 176 8 1 205 9 6 244 Drain pipe connection port 4 0 102 5 2 132 7 6 192 27 2 690 1 9 48 8 6 218 4 3 1...

Page 16: ...2 WIRING DIAGRAM SVM 13085 indb 18 SVM 13085 indb 18 12 24 13 10 56 AM 12 24 13 10 56 AM 16 ...

Page 17: ...CF 340WD94 1 ICF 340WD94 2 ICF 340WD139 2 Louver motor MP24Z3N Pulse motor valve PAM MD12TF 301 TA sensor TC1 sensor TC2 sensor TCJ sensor Ø0 16 4mm 39 4 1000mm Ø0 24 6mm 39 4 1000mm Ø0 24 6mm 39 4 1000mm SVM 13085 indb 19 SVM 13085 indb 19 12 24 13 10 56 AM 12 24 13 10 56 AM 12 9 328 mm 17 ...

Page 18: ...ration 2 Controls under cool in heating operation 3 Recovers refrigerant oil in cooling operation 4 Recovers refrigerant oil in heating operation Connector CN104 2P Yellow 1 Detects indoor suction temperature Connector CN100 3P Brown 1 Controls PMV super heat in cooling operation Connector CN101 2P Black 1 Controls PMV under cool in heating operation Connector CN102 2P Red 1 Controls PMV super hea...

Page 19: ...er stops Fan operation Cooling operation Dry operation Heating operation s Ta and Ts automatically select COOL HEAT operation mode for operation s The operation is performed as shown in the following figure according to Ta value at the first time only In the range of Ts 1 1 8 F 1 C Ta Ts 1 1 8 F 1 C Cooling thermo OFF Fan Setup air volume operation continues In the SMMS i and Mini SMMS the automat...

Page 20: ...eating operation Thermo OFF exchanges to cooling operation Description in the parentheses shows an example of cooling ON OFF When 1 5 lowers against Tsc 10 minutes and after thermo OFF cooling operation Thermo OFF exchanges to heating operation 2 For the automatic capacity control after judgment of cooling heating see Item 4 3 For temperature correction of room temp control in automatic heating se...

Page 21: ...ates one when thermostat of the remote controller works Value without parentheses indicates one when thermo stat of the body works s If the air speed has been changed once it is not changed for 1 minute However when the air speed exchanged the air speed changes s When heating operation has started select an upward slope for the air speed that is the high position s If the temperature is just on th...

Page 22: ...point is set to 6 C TCJ Temperature of indoor heat exchanger sensor s In D and E zones priority is given to remote control ler air speed setup s In A zone is displayed 7 Prevention of cold air discharge E B A A zone OFF B zone Over 78 8 F 26 C below 82 4 F 28 C ULTRA LOW LL C zone Over 82 4 F 28 C below 86 F 30 C LOW L D zone Over 86 F 30 C below 89 6 F 32 C MED H E zone HIGH HH D C 32 30 28 26 20...

Page 23: ...unit 1 Opens PMV of the indoor unit with a constant opening degree 2 Operates the indoor fan and drain pump for approx 1 minute during recovery control and after finish of control The direction of the louver becomes horizontal direction s Recovery operation is usually performed every 2 hours 1 In all cooling operation the air conditioner operates as described below based upon temp detected by TC1 ...

Page 24: ...g operation of the drain pump if the float switch operates the drain pump continuously operates and a check code is illuminated 3 During stop status of the drain pump if the float switch operates the thermostat is forcedly off and this control operates the drain pump After continuous operation of the float switch for approx 5 minutes this control stops the operation and a check code is issued 1 Wh...

Page 25: ... heating refrigerant Oil HEAT READY Displayed on the remote controller When the indoor fan stops in order to prevent discharge of cool air when heating operation started or during heating operation including the defrost operation during thermo OFF 1 Selection of the contents that can be operated by the remote controller at the indoor unit side is possible according to setting at the central contro...

Page 26: ...ase of refrigerant recovery control the louver position becomes horizontal 2 Swing setup s SWING is displayed and the following display is repeated In all operations Repeats s In group operation the louver positions can be set up collectively or individually 3 When the unit stopped or the warning was output the louver is automatically set to full closed position 4 When PRE HEAT Heating ready is di...

Page 27: ... indoor unit may operate as the fan motor stops Note If the fan lock was detected the operation of the indoor unit stops and the error is displayed Check code P12 20 Save operation 1 The function Save operation is not provided to the Super Modular Multi series models s If pushing SAVE button on the remote controller No function is displayed SVM 13085 indb 29 SVM 13085 indb 29 12 24 13 10 56 AM 12 ...

Page 28: ... Power circuit Power circuit EEPROM TA sensor TC1 sensor TC2 sensor TCJ sensor Float input HA Outdoor unit Fan motor control circuit Start Alarm Ready Thermostat ON COOL HEAT FAN BUS communication circuit Power circuit Remote controller communication circuit Remote controller communication circuit Display LCD Display LCD EEPROM Display LED Secondary battery Key switch Function setup Key switch Dra...

Page 29: ...AT FAN Emergent operation SW Function setup SW Display LED BUS communication circuit MCU EEPROM TA sensor TC1 sensor TC2 sensor TCJ sensor Float input HA Driver Buzzer Remote controller communication circuit Remote controller communication circuit CPU DC 280V Indoor unit 1 Header PMV Louver motor Indoor fan motor Drain pump U1 U2 U1 U2 Indoor Outdoor communication Outdoor unit 2 3 Follower Followe...

Page 30: ... sensor TC2 sensor TCJ sensor Float input HA Driver Buzzer Remote controller communication circuit Remote controller communication circuit Remote controller communication circuit CPU DC 280V Indoor unit 1 Header PMV Louver motor Indoor fan motor Drain pump L1 L2 U1 U2 U1 U2 Indoor Outdoor communication Outdoor unit 1 CPU DC5V Function setup Key switch Power circuit Display LCD Display LED EEPROM C...

Page 31: ...tion CN40 Blue Float SW CN34 Red TC1 sensor CN100 Brown TCJ sensor CN102 Red TC2 sensor CN101 Black Drain pump CN504 White TA sensor CN104 Yellow Not use CN20 Blue Function switching J01 Function switching J08 Application control kit CN521 Red Remote controller communication LED D504 Green Indoor Outdoor central control communication LED D503 Yellow PMV output HA T10 CN61 Yellow CN82 Blue Wireless...

Page 32: ...atus becomes the normal stop status ڦ Cooling Heating test run check The test run for cooling heating can be performed from either indoor remote controller or outdoor interface P C board 1 Start Finish operation of test run ۿ Test run from indoor remote controller Wired remote controller Refer to the below item of Test run of the wired remote controller Wireless remote controller Refer to the next...

Page 33: ...rox 3 minutes a cooling operation starts forcedly Check cool air starts blowing If the operation does not start check wiring again 2 To stop a test operation push TEMPORARY button once again Approx 1 second s Check wiring piping of the indoor and outdoor units in forced cooling operation TEMPORARY button SVM 13085 indb 35 SVM 13085 indb 35 12 24 13 10 56 AM 12 24 13 10 56 AM 33 ...

Page 34: ...in addition to short circuit of CHK pin CN71 on the indoor P C board the minimum opening degree 30pls can be set to the indoor PMV only When open DISP pin the maximum opening degree 1500pls can be obtained again How to clear Open CHK pin While the system is operating it stops once but automatically returns to operation after several minutes Fan motor Indoor PMV Louver Drain pump Communication P C ...

Page 35: ...operation stop is performed by input 4 Operation output Open collector Operation ON Answer back of HA 5 DC12V 6 Warning output Open collector Warning output ON CHK Operation check CN71 1 This check is used to check indoor operation Performs operation of indoor fan H Louver horizontal and Drain pump ON without communication with outdoor and remote controller 2 0V DISP Exhibition mode CN72 1 Communi...

Page 36: ...g 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 s To change the selected indoor unit return to procedure 2 s To change the CODE No to be set up return to procedure 3 6 Pushing TEST button returns the status to normal stop status 1 6 5 2 4 3 SET TIME TIMER SET TEST FILTER RESET TEMP CL FAN SAVE SWING FIX ...

Page 37: ... Not provided Automatic selection from connected outdoor unit 0000 Heat pump 0001 Cooling only No display of AUTO HEAT 0007 Ceiling 0000 Unfixed 0001 to 0034 0001 No 1 unit to 0030 No 30 unit 0001 No 1 unit to 0064 No 64 unit 0000 Individual 0001 Header unit of group 0002 Follower unit of group 0000 No louver 0001 Swing only 0002 1 way Cassette type Ceiling type 0003 2 way Cassette type 0004 4 way...

Page 38: ...esence of Application control kit TCB PCUC2E 0000 None 0001 Exist 0000 None TYPE Setup data Type Abbreviated Model name 0007 Ceiling Type MMC AP XXX HP Indoor unit capacity CODE No 11 Setup data Model 0009 018 0011 024 0013 030 0015 036 0017 048 SVM 13085 indb 40 SVM 13085 indb 40 12 24 13 10 56 AM 12 24 13 10 56 AM 7A Change unit 0 9 F 0 5 C or 1 8 F 1 C on remote 0000 0 9 F 0 5 C 0000 0 9 F 0 5 ...

Page 39: ...alarm Serial communication error or indoor outdoor protective device operation 2 Wiring diagram using remote control interface TCB IFCB 4UL Input Output IFCB 4UL No voltage ON OFF serial signal No voltage contact for operation error display Contact capacity Below Max AC240V 0 5A 1 2 3 4 5 6 CN61 T10 YEL 1 2 3 4 1 2 3 4 5 6 CN13 CN06 Start Stop input ON OFF serial signal input Indoor control P C bo...

Page 40: ... this time the fan of the selected indoor unit only turns on 3 Using the setup temp or button specify the CODE No 31 4 Using the timer time or button select the setup data At shipment The setup data are as follows Setup data Handling of operation of air to air heat exchanger or ventilating fan Unavailable At shipment Available 5 Push SET button OK if display goes on s To change the selected indoor...

Page 41: ...ller 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 SET CL TEST buttons for 4 seconds or more 2 Using the setup temp...

Page 42: ...1 Indoor unit address 1 Group address 1 1 2 2 1 3 2 2 1 2 2 2 2 Operation procedure 1 2 3 4 5 6 1 3 6 9 END 11 2 5 8 4 7 10 SET TIME TIMER SET TEST FILTER RESET TEMP CL FAN SAVE SWING FIX VENT MODE ON OFF UNIT LOUVER 7 8 9 10 11 END Note 1 When setting the line address from the remote controller do not use Address 29 and 30 As they are addresses which cannot be set to the outdoor unit if they are ...

Page 43: ...rs are also displayed every pushing UNIT LOUVER left side button button 2 To know the position of indoor unit by address s To confirm the unit No in the group control Follow to the procedure during operation in this procedure the indoor units in group control stop Procedure The indoor unit numbers in the group control are successively displayed and fan louver and drain pump of the corresponding in...

Page 44: ...ted line address using SET button s The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is dis played and the fan and the louver are on 4 Every pushing UNIT LOUVER left side button button the indoor unit No in the identical piping is s Only fan and louver of the selected indoor unit start operation To select the other line address 5 Push CL button and th...

Page 45: ...t 2 Push the UNIT LOUVER button left side of the button repeatedly to select an indoor unit number to change if 2 or more units are controlled in a group The fan and louvers of the selected indoor unit are activated The fan of the selected indoor unit is turned on 3 Push the TEMP buttons repeatedly to select for CODE No 4 Push the TIME buttons repeatedly to change the value indicated in the SET DA...

Page 46: ...p down the indoor address of the SET DATA The set data is changed to a new address 5 Push SET button to determine the set data 6 Every pushing UNIT LOUVER left side button button s Only fan and louver of the selected indoor unit start operation Repeat the Procedures 4 to 6 to change all the indoor addresses so that they are not duplicated 7 Push SET button All the indications of LCD go on 8 Push T...

Page 47: ...tton to set the CODE N to FF 3 The display of A part in the following figure is counted as with 5 seconds interval When appear the error was cleared However counting from is repeated on the display screen 4 When pushing TEST button the status becomes normal How to clear error of indoor unit The error of indoor unit is cleared by ON OFF button of the remote controller Only error of the indoor unit ...

Page 48: ... service monitor goes on and firstly the temperature of the CODE No is displayed 1 2 3 4 Returns to normal display Operation procedure 2 4 1 3 SET TIME TIMER SET TEST FILTER RESET TEMP CL FAN SAVE SWING FIX VENT MODE ON OFF UNIT LOUVER 2 Push TEMP button to change CODE No to the CODE No to be monitored For display code refer to the following table 3 Push UNIT LOUVER left side button button to chan...

Page 49: ... side TL1 Temperature at liquid side TL2 Temperature at liquid side TL3 10 10 1 1 1 1 1 1 1 1 1 1 1 1 psi psi F F F F F F F F F F F F 4350 435 psi CODE No Data name Display format Unit Remote control display example 90 Heating cooling recovery controlled 0 Normal 0010 Heating recovery controlled 0 Normal 1 Release controlled 92 Discharge temperature release 0001 Discharge temperature release contr...

Page 50: ... s Is not delayed for 3 minutes 3 minutes after compressor OFF s Is not thermostat OFF s Is not the fan operating or timer s Is not the system initially communicating Heating operation cannot be performed under condition of outside temperature 21 C or higher Cooling operation cannot be performed under condition of outside temperature 5 C or lower s Is not the cold draft prevention being controlled...

Page 51: ...mp sensor TC2 error Indoor heat exchanger temp sensor TC1 error Room tem Sensor TA error Indoor or other P C board error Duplicated setting of header in indoor group There is group cable in individual indoor unit Indoor group address is unset Indoor capacity is unset Duplicated central control system address External error was input in indoor Interlock Indoor AC fan error Indoor overflow was detec...

Page 52: ...0 Outdoor 7 segment Auxiliary code Block display Operation Timer Ready Flash Is not displayed In shared use of remote controller According to unit with alarm Abovementioned Main defective position Central control system communication send error Central control system communication receive error There are multiple network adapters Batched alarm of interface for general purpose equipment control Gro...

Page 53: ...is detected while indoor automatic address setting is in progress E23 E23 Outdoor outdoor communication transmission error Signal cannot be transmitted to other outdoor units E25 E25 Duplicated follower outdoor address There is duplication in outdoor addresses set manually E26 Address of outdoor unit from which signal is not received normally E26 Dropping out of outdoor unit Follower outdoor unit ...

Page 54: ...05 TK5 oil circuit error H16 Oil level detection circuit error No temperature change is detected by temperature sensor for oil level detection TK1 5 despite compressor having been started H25 H25 Outdoor discharge temperature sensor TD3 wiring error Wiring installation error or detachment of outdoor discharge temperature sensor TD3 has been detected L04 L04 SIM Duplicated outdoor refrigerant line ...

Page 55: ...rror SMMS i Series 4 There are insufficient number of IPDUs P C boards in inverter box Error in number of IPDUs Indoor unit has been shut down for external error input in one refrigerant line detected by indoor unit Outdoor discharge temperature sensor TD1 has detected abnormally high temperature Outdoor discharge TD1 temperature error P04 P04 High pressure SW activation High pressure SW was activ...

Page 56: ...mperature sensor built into IGBT TH detects overheating P20 P20 ALT High pressure protection activation High pressure Pd sensor detected a value over the criteria SMMS Series 1 04 Rotation difference error 06 Maximum rotation exceeded 08 Out of step 0A Idc activation 0C Fan lock 0d Lock 0E Sync error 0F Control error SMMS i Series 4 0 IGBT circuit 1 Position detection circuit error 3 Motor lockup ...

Page 57: ...FILTER L L RESET TEMP CL FAN SAVE A A SWING FIX VENT MODE ON OFF UNIT LOUVER T Procedure 1 2 3 Description When pushing SET and TEST buttons simultaneously for 4 seconds or more the below display appears If Service Check is displayed the mode enters in the error history mode s 01 Error history order is displayed in CODE No window s Check Code is displayed in check code window s Indoor unit address...

Page 58: ...p 1 Push and SET buttons in succession for 4 seconds or more 2 SERVICE CHECK goes on and Item code 01 goes on 3 When selecting flash the group number if there is the alarm history the UNIT number and the latest alarm history are displayed alternately In this time the temperature cannot be set up 4 To confirm the alarm history other than the latest one push temp set to select Item code 01 to 04 5 T...

Page 59: ...door and outdoor units Communication receiving error between indoor and outdoor units decrease of No of connected indoor units Communication sending error between indoor and outdoor units No indoor unit during setting of automatic address No of connected indoor units capacity over Error of No of center unit Disagreement of refrigerant pipe communication during setting of automatic address Communic...

Page 60: ...ssure sensor in outdoor unit Low pressure sensor Ps error Pressure sensor error in outdoor unit High pressure sensor Pd error Indoor unit EEPROM error Compressor break down Compressor lock Outdoor unit compressor system error Current detection circuit error Compressor 1 case thermo operation Low pressure Ps drop error Protections stop of outdoor unit Oil face drop detection error Oil face detectio...

Page 61: ...imer Ready Alternate flash Check code Cause of trouble occurrence During test run COOL HEAT disagreement Automatic cooling heating setup to automatic cooling heating unavailable model heating setup to cooling only model SVM 13085 indb 66 SVM 13085 indb 66 12 24 13 10 56 AM 12 24 13 10 56 AM 61 ...

Page 62: ...daptor Check remote controller and network adaptor wiring E04 Indoor unit Indoor outdoor communication circuit error detected at indoor end Stop of corresponding unit Indoor unit is not receiving signal from outdoor unit Check order in which power was turned on for indoor and outdoor units Check indoor address setting Check indoor outdoor tie cable Check outdoor termination resistance setting SW30...

Page 63: ...address setting again after disconnecting communication cable to that refrigerant line E15 I F Indoor unit not found during automatic address setting All stop Indoor unit cannot be detected after indoor automatic address setting is started Check connection of indoor outdoor communication line Check for error in indoor power supply system Check for noise from other devices Check for power failure C...

Page 64: ...eck communication connectors on outdoor P C boards Check for defect in outdoor P C board I F Check termination resistance setting for communication between outdoor units E25 I F Duplicated follower outdoor address All stop There is duplication in outdoor addresses set manually Note Do not set outdoor addresses manually E26 Address of outdoor unit from which signal is not received normally I F Drop...

Page 65: ...error Stop of corresponding unit Sensor resistance is infinity or zero open short circuit Check connection of TC1 sensor connector and wiring Check resistance characteristics of TC1 sensor Check for defect in indoor P C board F04 I F TD1 sensor error All stop Sensor resistance is infinity or zero open short circuit Check connection of TD1 sensor connector Check resistance characteristics of TD1 se...

Page 66: ...or wiring error TE1 TL All stop During compressor operation in HEAT mode TE1 continuously provides temperature reading higher than indicated by TL by at least specified margin for 3 minutes or more Check installation of TE1 and TL sensors Check resistance characteristics of TE1 and TL sensors Check for outdoor P C board I F error F16 I F Outdoor pressure sensor wiring error Pd Ps All stop Readings...

Page 67: ...igerant entrapment inside compressor Check for defect in outdoor P C board A3 IPDU Check outdoor MG CTT H03 H03 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU Current detection circuit error All stop Current flow of at least specified magnitude is detected despite inverter compressor having been shut turned off Check current detection circuit wiring Check defect in outdoor P C...

Page 68: ...nce characteristics of TK1 sensor Check for defect in outdoor P C board I F All stop Sensor resistance is infinity or zero open short circuit Check connection of TK2 sensor connector Check resistance characteristics of TK2 sensor Check for defect in outdoor P C board I F All stop Sensor resistance is infinity or zero open short circuit Check connection of TK3 sensor connector Check resistance char...

Page 69: ... refrigerant shortage H15 H15 I F TD2 sensor miswiring incomplete insertion All stop Air discharge temperature of TD2 does not increase despite compressor 2 being in operation Check installation of TD2 sensor Check connection of TD2 sensor connector and wiring Check resistance characteristics of TD2 sensor Check for defect in outdoor P C board I F Check code Location of detection Description Syste...

Page 70: ...he misconnection of TK1 TK2 TK3 or TK4 Check the SV3E valve error Check the oil circuit capillary clogging and non return valve error Check the hibernating refrigerant in compressor SMMS i 4 series 01 TK1 oil circuit error 02 TK2 oil circuit error 03 TK3 oil circuit error 04 TK4 oil circuit error 05 TK5 oil circuit error I F Oil level detection circuit error All stop No temperature change is detec...

Page 71: ...e between indoor and outdoor L03 Indoor unit Duplicated indoor header unit Stop of corresponding unit There is more than one header unit in group Check for any change made to remote controller connection group individual since indoor address setting Check indoor addresses L04 L04 I F Duplicated outdoor line address All stop There is duplication in line address setting for outdoor units belonging t...

Page 72: ...ptor P C board applicable to AI NET L28 L28 I F Too many outdoor units connected All stop There are more than four outdoor units Check No of outdoor units connected Only up to 4 units per system allowed Check communication lines between outdoor units Check for defect in outdoor P C board I F L29 L29 SMMS Series 1 01 A3 IPDU1 error 02 A3 IPDU2 error 03 A3 IPDU1 A3 IPDU2 error 04 Fan IPDU error 05 A...

Page 73: ... SV41 SV42 or SV43 P04 P04 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU Activation of high pressure SW All stop High pressure SW is activated Check connection of high pressure SW connector Check for defect in Pd pressure sensor Check outdoor service valves gas side liquid side to confirm full opening Check for defect in outdoor fan Check for defect in outdoor fan motor Check...

Page 74: ...sink cooling duct for clogging Check IGBT and heat sink for thermal performance for faulty installation e g mounting screws and thermal conductivity Check for defect in A3 IPDU faulty IGBT built in temperature sensor TH P10 P10 Detected indoor address Indoor unit Indoor overflow error All stop Float switch operates Float switch circuit is open circuited or disconnected at connector Check float swi...

Page 75: ...tection TD condition All stop Protective shutdown due to sustained discharge temperature TD1 TD2 or TD3 at or above 108 C for at least 10 minutes is repeated four times or more Check for insufficiency in refrigerant quantity Check PMVs PMV 1 2 for clogging Check resistance characteristics of TD1 TD2 and TD3 sensors Check indoor filter for clogging Check piping for clogging Check SV4 circuit for le...

Page 76: ...ct in outdoor fan Check for defect in outdoor fan motor Check outdoor PMVs PMV1 2 4 for clogging Check indoor outdoor heat exchangers for clogging Check for short circuiting of outdoor suction discharge air flows Check SV2 circuit for clogging Check for defect in outdoor P C board I F Check for defect in indoor fan system possible cause of air flow reduction Check opening status of indoor PMV Chec...

Page 77: ...ck the connector connection for fan motor Check the error of IPDU board for fan All stop Sub code 06 External factors such as blast Position detection is not performed properly Restarted in 6 seconds Check the fan motor Check the error of IPDU board for fan All stop Sub code 04 External factors such as blast The difference between targeted rotation and actual rotation is 25 or more Restarted in 6 ...

Page 78: ...t in fan IPDU P C board All stop Sub code D The resistance value of the sensor is infinite or zero open or short circuit Check for defect in fan IPDU P C board All stop Sub code E Fan IPDU DC voltage protection circuit The DC voltage higher or lower than the specified value is detected Check power voltage of the main power supply Check for defect in fan IPDU P C board Check connection of fan IPDU ...

Page 79: ...er end of central control communication line C12 General purpose device I F Blanket alarm for general purpose device control interface Continued operation Error signal is input to control interface for general purpose devices Check error input P30 Differs according to nature of alarm causing error TCC LINK Group control follower unit error Continued operation Error occurs in follower unit under gr...

Page 80: ...ernal input output board flashes on and off Red LED LD1 of external input output board blinks No Yes Fault with the external input output board Replace No Lead wire is cut or fault of input output board Yes Check the operating status Repair of connector connection Yes Replacement of the connector s lead wire 8 5 Diagnostic Procedure for Each Check Code Indoor Unit Please refer to the multi outdoor...

Page 81: ...nnect the connector CN210 to the indoor P C board Is not connection error or disconnection on the connector CN210 of indoor unit P C board Does the fan turn smoothly when turned by hand Is each resistance value on the motor side of the fan motor connector CN210 of the indoor P C board correct Is F01 of the indoor P C board open Is R04 or R05 of the indoor P C board open Pin No 7 6 5 4 3 2 1 Color ...

Page 82: ...C Temperature C 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Indoor TC1 sensor 20 10 0 10 20 30 40 50 60 70 80 90 100 50 100 150 200 5 10 15 20 30 0 0 Resistance kΩ 10 C or below Resistance kΩ 10 C or above Resistance kΩ 115 2 84 2 62 3 46 6 35 2 26 9 20 7 16 1 12 6 10 0 8 0 6 4 5 2 4 2 3 5 2 8 2 4 2 0 1 6 1 4 1 2 Temperature C Temperature C 20 15 10 5 0 5 10 15 20 25 3...

Page 83: ...s regularly will cause shortage of capacity freezing water leakage or trouble on the compressor Part name Heat exchanger Fan motor Filter Fan Suction Discharge grille Drain pan Face panel Louver External appearance Object Indoor Outdoor Contents of check Blocking with dust damage check Audibility for sound Visual check for dirt and breakage Visual check for swing and balance Check adhesion of dust...

Page 84: ...rilles 2 Attachment 1 Attach the hinge of air intake grille in square hole of body 2 Close the air intake grille and then fix it securely while sliding knob closed side CLOSE 3 Fix the screws of air intake grille fixing knob on a side of each filter Electric parts 1 Detachment box cover 1 Loosen the screw of the electric parts box cover Ø4 x 10 2 pcs 2 The electric parts box cover is moved to fan ...

Page 85: ...chment board 1 Perform works of 1 of 3 2 Remove the indoor outdoor connecting wire and remote controller wire from each terminal block 3 Remove the connectors which connected from the control P C board to other parts NOTE First unlock the housing and then remove the connectors 2 Attachment 1 Attach the electric parts box and then perform wiring as original NOTE Check there is no missing or contact...

Page 86: ...the hexagonal screw hole of the fan is loosened and the fan is detached from the shaft NOTE It explains the following content by 18 type 1 Perform works of 1 of and 2 Remove connectors for fan motor wiring from control P C board CN210 Fan motor 7P White 3 Remove the fixing screws of the fan case under Ø4 x 10 1 pcs 4 The hanging claw on both sides of fan case under is removed 5 Fan case under is p...

Page 87: ... 4 9N m or more 6 Adjust the shaft position so that the dimensions of the bearing part of the right figure 7 After the dimensional adjustment tighten the shaft side fixing screws of the coupling NOTE Be sure to use a torque wrench for fixing and tighten with 4 9N m or more 8 The fan is positioned so that the fan may become a center for fan case upper and it fixes with the hexagonal screw hole NOTE...

Page 88: ... 48 type 1 Perform works of 1 of 24 to 48 type 2 Bearing press from the side cover side And remove it 2 Attachment 1 Bearing press from the fan case side And mounting 2 Perform works of 2 of 24 to 48 type Procedure Remarks Fan case Side cover Fan case side Side cover side Bearing 88 ...

Page 89: ...ite NOTE First unlock the housing and then remove the connectors 3 Remove the fixing screws of the fixing plate 2 pcs at the side of the fan motor Ø5 x 10 2 pcs 4 While supporting the fan motor by hands remove the the fan motor 2 Attachment 1 Attach as before in fan motor 䊻㻌 motor fixing plate 䊻 electric part box cover order Attach the connector then perform wiring as original 5 The fixing plate R...

Page 90: ...1 Detachment 1 Perform works of 1 of 2 Remove the screws of the side cover One side Ø4 x 10 1 pcs 3 Slide to the air discharge side remove the side cover 2 Attachment 1 Insert hooking claw of the side cover in the square hole on the main body Slide to the air intake side and attach the side cover 2 Fix the side cover by screws One side Ø4 x 10 1 pcs 1 90 ...

Page 91: ...to drain pan 2 Attach the screws as original position 24 56 type attach the support plate as original position 9 1 Perform works of 1 of 8 2 Remove the support plate 24 48 type only Ø4 x 10 1 pc The screw on a front side is removed and it detaches it from the square hole on the back side 3 The screw on both sides is removed Ø4 x 10 2 pcs 4 The screw on fan side is removed 18 30 type Ø4 x 10 3 pcs ...

Page 92: ...eat insulator peeled off is used 5 Slide to the air discharge side remove the drain pan 2 Attachment 1 The drain cap is surely inserted up to the drain pan root 2 Slide to the air discharge side hooking surely the frame on fan side 3 Attach the shoulder screws as original position the heat insulator is stuck on 4 The hose band is used and the drain hose is installed 1 Perform works of 1 of 9 2 Rem...

Page 93: ... Attach as before in heat exchanger 䊻㻌 sensor 䊻 piping support 䊻 drain pan 䊻 under panel order 2 Connect the refrigerant pipe as original and then perform vacuuming 1 Recover the refrigerant gas and then remove the refrigerant pipe of the indoor unit 2 Perform works of 1 of Pull out sensor wires from the holder 3 The screw that is the fixing of the piping support is removed and the piping support ...

Page 94: ...ial operation Replacement procedures CASE 1 Before replacement the indoor unit can be turned on and the setting data can be read out by wired remote control operation EEPROM data read out 1 Replacement of P C board for Indoor unit servicing and power on 2 Writing the read out EEPROM data 3 Power reset for all indoor units connected to the remote control when the group operation control is performe...

Page 95: ... approx 1 min until the remote controller operation is available again CODE No required at least 1 The CODE No for the Indoor unit type and Indoor unit capacity are required to set the rotation number setting of the fan 2 If the system indoor group addresses are different from those before replacement the auto address setting mode starts and the manual resetting may be required again when the mult...

Page 96: ...ing data is displayed 4 Change the CODE No DN to by pushing buttons for the temperature setting 5 Select the capacity by pushing buttons for the timer setting For example AP027 Type is set to 0012 Refer to table 3 6 Push SET button The setting completes if the setting data are displayed Fig 1 RBC AMT32UL B In case that power of the indoor units cannot be turned on individually Case 1 a Remove temp...

Page 97: ...ove check the setting data and modify to the data put down in 1 Step 8 Repeat the steps 6 and 7 Step 9 After the setting completes push TEST button to return to the normal stop status It takes approx 1 min until the remote control operation is available again The CODE No DN are ranged from to The CODE No DN is not limited to be serial No Even after modifying the data wrongly and pushing SET button...

Page 98: ...controller 60 5D Remote controller operation save function D0 0000 Unavailable 0000 Thermo ON 0001 Enable 0000 Available Presence of Application control kit TCB PCUC2E Communication protocol FC 0000 None 0000 TCC LINK 1Fb Remote controller operation 0000 Operation possible Indoor Unit terminating resistance 1FC 0000 OFF 0000 Default setting External static pressure F6 Heating suction temperature s...

Page 99: ...11 EXPLODED VIEWS AND PARTS LIST MMC AP0188HPUL 049 051 050 048 032 031 ACCESSORY PART 025 024 99 ...

Page 100: ...20 43T22333 ASM GEAR FLAP 1 21 43T22327 ASM FAN CASE D 2 22 43T22328 ASM FAN CASE U 2 23 43T21443 MOTOR FAN 1 24 43T46517 BODY PMV 1 25 43T46515 COIL PMV 1 26 43T47386 STRAINER 1 28 43T60446 LEAD MOT 1 31 43T70317 ASM HOSE 1 32 43T83313 HOSE BAND 2 33 43T79320 CAP DRAIN 1 34 43T80338 AIR FILTER 2 35 43T81304 HANGER R 1 36 43T81305 HANGER L 1 37 43T97318 SCREW DR 1 38 43T19333 HOLDER SENSOR 2 39 43...

Page 101: ...12 24 13 10 56 AM 12 24 13 10 56 AM MMC AP0248HPUL MMC AP0308HPUL 054 056 055 053 036 035 ACCESSORY PART 029 028 101 ...

Page 102: ... D 3 3 23 43T22328 ASM FAN CASE U 3 3 24 43T22312 BEARING ASSY MOLD 1 1 25 43T22324 COUPLING 1 1 26 43T22350 SHAFT 1 1 27 43T21444 MOTOR FAN 1 1 28 43T46518 BODY PMV 1 1 29 43T46515 COIL PMV 1 1 30 43T47386 STRAINER 1 1 32 43T60446 LEAD MOT 1 1 35 43T70317 ASM HOSE 1 1 36 43T83313 HOSE BAND 2 2 37 43T79320 CAP DRAIN 1 1 38 43T80338 AIR FILTER 1 1 39 43T80339 AIR FILTER 1 1 40 43T81304 HANGER R 1 1...

Page 103: ...12 24 13 10 56 AM 12 24 13 10 56 AM MMC AP0368HPUL MMC AP0488HPUL 052 047 054 053 051 035 034 ACCESSORY PART 028 027 103 ...

Page 104: ... 4 4 22 43T22328 ASM FAN CASE U 4 4 23 43T22312 BEARING ASSY MOLD 1 1 24 43T22324 COUPLING 1 1 25 43T22351 SHAFT 1 1 26 43T21470 MOTOR FAN 1 1 27 43T46513 BODY PMV 1 1 28 43T46515 COIL PMV 1 1 29 43T47386 STRAINER 1 1 31 43T60446 LEAD MOT 1 1 34 43T70317 ASM HOSE 1 1 35 43T83313 HOSE BAND 2 2 36 43T79320 CAP DRAIN 1 1 37 43T80339 AIR FILTER 2 2 38 43T81304 HANGER R 1 1 39 43T81305 HANGER L 1 1 40 ...

Page 105: ...RMINAL 1 1 1 1 1 403 43T60362 TERMINAL 1 1 1 1 1 404 43T60540 ASM HOUSING PW 1 1 1 1 1 405 43T50351 HOLDER TA 1 1 1 1 1 406 43T61317 BASE CLAMP 1 1 1 1 1 407 43T6W916 PC BOARD ASSY 1 1 1 1 1 408 43T50390 TA SENSOR 1 1 1 1 1 409 43T50386 TC SENSOR TCJ 1 1 1 1 1 410 43T50387 TC SENSOR TC2 1 1 1 1 1 411 43T60524 ASM HOUSING REM 1 1 1 1 1 412 43T60541 ASM HOUSING BUS 1 1 1 1 1 413 43459017 ASM PCB OP ...

Page 106: ...re are 2 or more refrigerating systems in a single refrigerating device the amounts of refrigerant should be as charged in each independent device For the amount of charge in this example The possible amount of leaked refrigerant gas in rooms A B and C is 10kg The possible amount of leaked refrigerant gas in rooms D E and F is 15kg NOTE 2 The standards for minimum room volume are as follows 1 No p...

Page 107: ...144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND ...

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