Toshiba MMU-AP0094HP1-E Service Manual Download Page 76

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FILE NO. SVM-

16041

H14

I/F

Compressor 2

case thermo

activation

All stop

Compressor 2 case
thermo was

activated.

Check Compressor 2 case thermo

circuit.

(Connector, Wiring, Circuit board)

Open and check the service valve.

(Gas side, Liquid side)

Check the outdoor PMV clogging

(PMV1, 2).

Check the SV42 circuit.

Check the SV4 circuit (SV41 / 42

miswiring).

Check the opening status of indoor

PMV.

Check the four-way valve error.

Check the refrigerant shortage.

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

detection

Description

System status

Error detection

condition(s)

Check items (locations)

Outdoor 7-segment display

Sub-code

Check

code

Main

remote

controller

Summary of Contents for MMU-AP0094HP1-E

Page 1: ...e MMU AP0094HP1 E TR MMU AP0124HP1 E TR MMU AP0154HP1 E TR MMU AP0184HP1 E TR MMU AP0244HP1 E TR MMU AP0274HP1 E TR MMU AP0304HP1 E TR MMU AP0364HP1 E TR MMU AP0484HP1 E TR MMU AP0564HP1 E TR AIR CONDITIONER MULTI TYPE FILE NO SVM 16041 April 2016 ...

Page 2: ...Y CAUTION 3 15 1 CONSTRUCTION VIEWS EXTERNAL VIEWS 1 1 MMU AP0094HP1 AP0124HP1 15 16 17 1 2 MMU AP0154HP1 AP0184HP1 1 3 MMU AP0244HP1 AP0274HP1 AP0304HP1 1 4 MMU AP0364HP1 AP0484HP1 AP0564HP1 18 2 WIRING DIAGRAM 19 3 PARTS RATING 20 4 REFRIGERATING CYCLE DIAGRAM 21 5 CONTROL OUTLINE 22 6 CONFIGURATION OF CONTROL CIRCUIT 32 7 APPLIED CONTROL 40 8 TROUBLESHOOTING 57 9 DETACHMENTS 89 10 P C BOARD EXC...

Page 3: ...dge related to this work The qualified service 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 ...

Page 4: ...correct work has been executed Indicates possibilities assumed 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 ...

Page 5: ... WARNING WARNING Moving parts Do not 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 th...

Page 6: ...abnormal sounds are heard the air conditioner fails to cool or heat or water is leaking has occurred in the air conditioner do not touch the air conditioner yourself but set the circuit breaker to the OFF position and contact a qualified service person Take steps to ensure that the power will not be turned on by marking out of service near the circuit breaker for instance until qualified service p...

Page 7: ...ke work When working at heights use a ladder which complies with the ISO 14122 standard and follow the procedure in the ladder s instructions Also wear a helmet for use in industry as protective gear to undertake the work Before working at heights put a sign in place so that no one will approach the work location before proceeding with the work Parts and other objects may fall from above possibly ...

Page 8: ...ng the route of the service port is changed from one of the former R22 Do not use any refrigerant different from the one specified for complement or replacement Otherwise abnormally high pressure may be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body For an air conditioner which uses R410A never use other refrigerant than R41...

Page 9: ... for the airtight test The charge hose must be connected in such a way that it is not slack 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 repair Once the repair work has been completed check for refrigerant leaks and check the insulat...

Page 10: ... to another outdoor unit Capacity overflow may occur on the terminal block and may result in fire Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas If a combustible gas leaks and becomes concentrated around the unit a fire may occur Install the indoor unit at least 2 5 m above the floor level since otherwise the users may injure themselve...

Page 11: ...E TR MMU AP0364HP1 E TR MMU AP0564HP1 E TR Commercial name Super Modular Multi System Air Conditioner Super Heat Recovery Multi System Air Conditioner MiNi Super Modular Multi System Air Conditioner MiNi SMMS series Complies with the provisions of the Machinery Directive Directive 2006 42 EC and the regulations transposing into national law Complies with the provisions of the following harmonized ...

Page 12: ...Weight kg Main unit Ceiling panel MMU AP0094HP1 E TR MMU AP0124HP1 E TR MMU AP0154HP1 E TR MMU AP0184HP1 E TR MMU AP0244HP1 E TR MMU AP0274HP1 E TR MMU AP0304HP1 E TR MMU AP0364HP1 E TR MMU AP0484HP1 E TR MMU AP0564HP1 E TR 18 4 18 4 20 4 20 4 20 4 20 4 20 4 25 4 25 4 25 4 Under 70 dBA ...

Page 13: ...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 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 cha...

Page 14: ...r 2 Thermometer 3 Insulation resistance tester 4 Electroscope Note 1 When flaring is carried out for R410A using the conventional flare tools 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 f...

Page 15: ...ut square hole Ø150 For branch duct knockout square hole Ø150 2 positions For branch duct knockout square hole Ø150 Bottom face of ceiling An obstacle Standing 850 or less 300 or less Standing 661 or less The space that is necessary for equipping and service Drain upstanding size 1000 or more 1000 or more 15 or more 15 or more 1000 or more Bottom face of ceiling Indoor unit Bottom face of ceiling ...

Page 16: ...e Ø150 For branch duct knockout square hole Ø150 Ceiling panel sold separately Bottom face of ceiling 80 240 135 105 207 5 105 287 5 840 Unit external dimension 408 For branch duct knockout square hole Ø150 2 positions Electric parts box 77 129 10 5 74 Ø162 105 For branch duct knockout square hole Ø150 Drain pipe connecting port Meterial PP 112 44 172 Take in port of wiring Bottom face of ceiling ...

Page 17: ...0 For branch duct knockout square hole Ø150 Ceiling panel sold separately Bottom face of ceiling 80 240 135 105 207 5 105 287 5 840 Unit external dimension 408 For branch duct knockout square hole Ø150 2 positions Electric parts box 77 129 10 5 74 Ø162 105 For branch duct knockout square hole Ø150 Drain pipe connecting port Meterial PP 112 44 172 Take in port of wiring Bottom face of ceiling 30 An...

Page 18: ...quid side Refrigerant pipe connecting port Ø15 9 Gas side For branch duct knockout square hole Ø150 2 positions An obstacle Standing 850 or less 300 or less Standing 661 or less The space that is necessary for equipping and service Drain upstanding size 1000 or more 1000 or more 15 or more 15 or more 1000 or more Bottom face of ceiling Indoor unit Unit mm Knockout for simple OA for Ø100 Bottom fac...

Page 19: ... 19 FILE NO SVM 16041 2 WIRING DIAGRAM ...

Page 20: ...gth 1000 mm Vinyl tube Blue Ø6 size lead wire length 1000 mm Vinyl tube Black Ø6 size lead wire length 1000 mm Vinyl tube Red FS 1A 31 3 MDP 1401 Model Fan motor Motor for horizontal grille Pulse motor Pulse motor valve TA sensor TC1 sensor TC2 sensor TCJ sensor Float switch Drain pump motor MMU AP036 AP048 AP056 ICF 280 150 1 MSBPC20F04 E M MD12TF 1 EFM 60YGTCTH 1 Lead wire length 328 mm Vinyl tu...

Page 21: ...Functional outline Connector CN082 6P Blue 1 Controls super heat in cooling operation 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 ...

Page 22: ...ller the operation mode is selected Remote controller command STOP FAN COOL DRY HEAT AUTO SHRM only Control outline Air conditioner stops Fan operation Cooling operation Dry operation Heating operation Ta and Ts automatically select COOL HEAT operation mode for operation 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 Ta...

Page 23: ...as shown below When 1 5 exceeds against Tsh 10 minutes and after thermo OFF heating 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 Ite...

Page 24: ...on the difference boundary the air speed does not change HEAT Value in the parentheses indicates one when thermostat of the remote controller works Value without parentheses indicates one when thermo stat of the body works 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 When heating operation has started select an upw...

Page 25: ...ion shifts to C zone In defrost time the control point is set to 6 C TCJ Temperature of indoor heat exchanger sensor In D and E zones priority is given to remote control ler air speed setup In A zone is displayed 7 Prevention of cold air discharge E B A A zone OFF B zone Over 26 C below 28 C ULTRA LOW LL C zone Over 28 C below 30 C LOW L D zone Over 30 C below 32 C MED H E zone HIGH HH D C 32 30 2...

Page 26: ...CJ sensors When M zone is detected for 45 minutes the thermostat is forcedly off In N 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 12 C and TC2 12 C and TCJ 12 C 2 20 minutes passed after stop P1 Q1 C a K J P2 Q2 C L N ...

Page 27: ...l anytime operates the drain pump 2 During operation of the drain pump if the float switch operates the drain pump continuously operates and a check code is issued 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 opera...

Page 28: ...e the system performs Recovery operation for heating refrigerant Oil HEAT READY Displayed on the remote controller 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 acc...

Page 29: ...dividually set or the locked louver closes fully when the unit stops and the louver is automatically set to horizontal discharge position when PRE HEAT Heating ready is displayed heating thermo is off Individual air direction setup Pushing UNIT LOUVER Louver select button enables every discharge port to set up the air direction The louver numbers that are displayed on the display part correspond t...

Page 30: ...elected and set by the setup data of Item code DN F0 In case of selecting the Swing mode Dual swing or Cycle swing the following numerals is displayed at the center of the remote controller screen for approx 3 seconds when SWING FIX button was pushed to select SWING No display for the standard swing Remarks Carry out setting operation during stop of the unit otherwise the unit stops operation For ...

Page 31: ...osition Horizontal discharge position Horizontal discharge position Horizontal discharge position Full close position It is position check operation and it does not link with the real louver and air direction setup Illustration on the remote controller screen 19 DC motor 1 When the fan stator positioning is performed for the starter and the rotor Vibrate slightly 2 DC motor operates according to t...

Page 32: ...oor unit 1 Header P C board MCC 1401 DC5V PMV Louver motor Indoor fan motor CPU DC5V DC5V 3 CN2 CN1 Wired Simple header remote controller Up to 2 units Schedule timer Function setup LCD driver CPU Power circuit Power circuit Power circuit Transformer Switch setup EEPROM TA sensor TC1 sensor TC2 sensor TCJ sensor Float input HA Outdoor unit CPU Fan motor control circuit AC synchronous signal input ...

Page 33: ... DC20V DC5V Power circuit Outside output Fan motor control circuit Start Alarm Ready Thermostat ON COOL HEAT FAN Emergent operation SW Function setup SW Display LED MCU AC synchronous signal input circuit 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...

Page 34: ...dy Thermostat ON COOL HEAT FAN Emergent operation SW Function setup SW Display LED MCU AC synchronous signal input circuit 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 Remote controller communication circuit CPU DC 280V Network adaptor Option Indoor unit 1...

Page 35: ...door Outdoor central control communication LED D503 Yellow Output for FS unit CN81 Black DC12V PMV output CN82 Blue DC12V Power supply LED of microprocessor D501 Red Optional output CN60 White DC12V Power supply CN67 Black AC220 240 DC fan return CN334 White Power supply LED of remote controller D403 Red Louver CN510 White DC12V Optional power supply CN309 Yellow AC200V HA T10 CN61 Yellow DC12V In...

Page 36: ...s and status becomes the normal stop status 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 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 ...

Page 37: ... operation changes to a forced cooling operation After approx 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 Check wiring piping of the indoor and outdoor units in forced cooling operation ...

Page 38: ...circuiting DISP pin CN72 on the indoor P C board 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 moto...

Page 39: ...roller DN 31 HA ON OFF input J01 YES NO Pulse At shipment Static input select Operation stop of main remote controller is permitted prohibited by input ON during operation Answerback of HA ON during alarm output ON when outdoor unit is defrosted ON during Real thermostat ON Compressor ON ON when operation mode is cooling system COOL DRY Cool Heat Auto cooling ON when operation mode is heating syst...

Page 40: ...unit numbers in the group control 3 Specify the CODE No DN using the setup temperature and buttons 4 Select the setup data using the timer time and 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 CODE No to be set...

Page 41: ...f AUTO HEAT 0001 4 way Cassette 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 Cassette type 0000 0 deg to 0010 10 deg For setup temperature reversal of COOL HEAT by Data value 2...

Page 42: ...y 3 way 2 way 0000 Standard 3 0m 3 3m 3 6m 3 0m 3 3m 3 6m At shipment 0001 High ceiling 3 3m 3 5m 3 8m 3 3m 3 5m 3 8m 0003 High ceiling 3 6m 3 8m 3 6m 3 8m 0000 Standard filter At shipment 0000 Available Operable 0001 Unavailable Operation prohibited At shipment 0000 Standard 0000 Available TYPE 1 Initial setting value of EEPROM installed on the service P C board Indoor unit capacity Setup data 1 ...

Page 43: ... 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 4E2 Input IFCB 4E2 No voltage ON OFF serial signal Output 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...

Page 44: ...in group control are displayed successively In 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 d...

Page 45: ...r 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 or...

Page 46: ...door Indoor Indoor Indoor Indoor unit Line address 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 w...

Page 47: ...remote controller Group control unit other unit numbers are also displayed every pushing UNIT LOUVER left side button button 2 To know the position of indoor unit by address 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 an...

Page 48: ... UNIT LOUVER SWING FIX button 3 Determine the selected line address using SET button 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 Only fan and louver of the selected indoor unit start operation To select...

Page 49: ... indicated UNIT No is that of the head unit 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 select13 13 13 13 13 for CODE No 4 Push the TIME button...

Page 50: ...ne address is not displayed 4 TIME button push up 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 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 bu...

Page 51: ... the mode to service monitor mode 2 Push TEMP button 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 ...

Page 52: ... or more to call up the service monitor mode The 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 ...

Page 53: ...mperature TS Coil Temperature 1 TE Liquid Temperature TL Outdoor Temperature TO Low pressure saturation temperature TU Current of compressor 1 I1 Current of compressor 2 I2 PMV1 2 PMV3 Compressor 1 2 ON OFF Outdoor fan mode Horse power of outdoor unit 2 C C C C C A A pls pls HP 0024 24 C 0135 13 5 A 0050 500 pls 0050 500 pls 0031 Mode 31 0016 16HP 10 20 30 40 Discharge temperature of compressor 1 ...

Page 54: ... Coil Temperature 2 TE2 Liquid Temperature TL Outdoor Temperature TO PMV1 2 PMV4 Current of compressor 1 I1 Current of compressor 2 I2 Current of compressor 3 I3 Outdoor fan current IFan C C C C C pls pls A A A A 10 20 30 40 Detection pressure of high pressure sensor Pd Detection pressure of low pressure sensor Ps MPa 11 21 31 41 MPa 0123 1 23 MPa 12 22 32 42 Discharge temperature of compressor 1 ...

Page 55: ... Pressure release 5 5F 6F 7F 8F Horse power of outdoor unit HP 54 64 74 84 Heat sink temperature of compressor IPDU1 55 65 75 85 Heat sink temperature of compressor IPDU2 56 66 76 Heat sink temperature of compressor IPDU3 58 In heat cool collecting control 5 5A Discharge temperature release 5 0 Normal 1 In collecting control 0 Normal 1 In release control 5B Terminal unit release U2 U3 U4 outdoor u...

Page 56: ...e remote controller ON in hardware 3 D503 Yellow Indoor Outdoor central control D503 goes on for 5 seconds at the first half during communication with the central controller D503 flashes for 5 seconds with 0 2 second interval at the latter half during communication with outdoor unit Goes on for 0 1 second goes off for 0 1 second 4 D504 Green Remote controller communication D504 goes on for 5 secon...

Page 57: ...operation on remote controller is unavailable Check items 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 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 Is...

Page 58: ...nsor TCJ error Indoor heat exchanger temp 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...

Page 59: ...eck code display TCC LINK central C05 C06 C12 P30 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 int...

Page 60: ...tting Indoor unit from other refrigerant line 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 Dropp...

Page 61: ...3 TK3 oil circuit error 04 TK4 oil circuit error 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...

Page 62: ...DU error 06 A3 IPDU2 Fan IPDU error 07 All IPDU error 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 ...

Page 63: ...e SW is activated Heat sink overheating error Temperature 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 ...

Page 64: ...2 1 SET TIME TIMER SET TEST FILTER LTER L RESET TEMP CL FAN SAVE AVE 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 01 Error history order is displayed in CODE No window Check Code is displayed in check code...

Page 65: ...ating or stop 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 ...

Page 66: ...ication interruption between indoor 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 settin...

Page 67: ...d and low pressure sensor Ps Misconnection of pressure 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 uni...

Page 68: ...ration Timer Ready Simultaneous flash Operation Timer 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 ...

Page 69: ...remote controller including wireless or network adaptor 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 ...

Page 70: ...while automatic address setting for indoor units is in progress Perform automatic 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 indoo...

Page 71: ...n outdoor units for bad contact or broken wire Check 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 fr...

Page 72: ...r P C board F03 Indoor unit Indoor TC1 sensor 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 connec...

Page 73: ...3 IPDU P C board F15 I F Outdoor temperature sensor 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 pre...

Page 74: ...Check conductivity of case heater Check for refrigerant 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 dete...

Page 75: ... connection of TK1 sensor connector Check resistance 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 connect...

Page 76: ...oor PMV Check the four way valve error Check the 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 Ch...

Page 77: ... the TK4 sensor resistant characteristics Check the 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 circ...

Page 78: ...unit Check the miswiring of the communication line 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 l...

Page 79: ...heck central control addresses Check network adaptor 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 0...

Page 80: ... SV4 circuit Check SV4 circuit wiring or installation error in 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 def...

Page 81: ...oltage Check outdoor fan system error Check heat 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 circu...

Page 82: ...cuit for leakage 02 TD condition I F Gas leak detection 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 Ch...

Page 83: ...iquid side to confirm full opening Check for defect 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 ...

Page 84: ...is not performed properly Check the fan motor Check 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 ...

Page 85: ...ration of the fan Check fan motor Check for defect 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...

Page 86: ...ine Check defect in P C boards of devices at other 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 ...

Page 87: ... 5 2 1 1 8 1 5 1 3 1 1 1 0 0 8 0 7 Temperature 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 Temperatu...

Page 88: ...2R AP009 AP012 AP015 Position Resistance value AP018 AP024 AP027 Fan motor inside wiring diagram Black Red 87 8 7 Ω AP030 Black White 87 8 7 Ω Red White 87 8 7 Ω ICF 280 150 1 AP036 AP048 AP056 Position Resistance value Black Red 32 4 3 3 Ω Black White 32 4 3 3 Ω Red White 32 4 3 3 Ω SWF 230 60 2R ICF 280 150 1 Checking procedure Under 20 C ...

Page 89: ...ixing screw B 3 Pull down the electric parts cover remove pin of the bell mouth and then slide it to the arrow direction in order to open the claws and the electric parts box cover 2 Attachment 1 Close the electric parts cover and slide it hook claw of the electric parts box claw of the electric parts box cover and the Dharma doll hole and then insert pin of the bell mouth into hole of the electri...

Page 90: ... to remove the cap of the knob side at first 2 Attachment 1 Hook strap of the adjust corner cap securely to pin of the ceiling panel 2 Insert claw of the adjust corner cap into the square hole of the panel 2 positions 3 Push claws of the adjust corner cap into the positions indicated with arrow marks so that they fit in 3 positions Adjust corner cap 3 Push into positions with arrow marks Adjust co...

Page 91: ...ide of the indoor unit 2 Pass the head of the panel fixing screw through hole of the panel fixing bracket and then slide the panel fixing bracket inward 3 Tighten in the panel fixing screw to fix the ceiling panel 4 Following to work of item 2 of 3 attach the adjust corner cap as before 5 Connect the louver connector CN510 White 20P as before and then fix the lead wire with clamp 6 Following to wo...

Page 92: ...an motor position detection 3P White CN82 PMV 6P Blue NOTE Unlock the lock of the housing part and then remove the connector 3 Unlock the locks of the card edge spacer 6 positions and then remove the control P C board 2 Attachment 1 Fix the control P C board to the card edge spacer 6 positions 2 Connect the connector removed in item 1 as before and then fix the wiring with the clamp 3 Following to...

Page 93: ... faces tape etc 4 Turn the drain cap once again to OPEN direction to remove it 2 Attachment 1 Insert the drain cap inside turn it to CLOSE direction until the position where Clashed sound is heard and it cannot be turned more over Position where mark of the drain pan matches with mark of the drain cap inside and then fix it NOTE When attaching the drain cap inside remove dirt attached to the packi...

Page 94: ...nd then remove the bell mouth Ø4 10 8 pcs 6 Remove the fixing screws and then remove the nut cap Ø4 10 2 pcs 7 Remove the fixing nut and then remove the turbo fan M8 nut with flange 1 pc 8 Remove the fixing screws and then remove the motor lead holding bracket Ø4 8 2 pcs 9 Cut the bundling band and then remove it from the clamp 10 Remove the fixing nut and then remove the fan motor Ø6 nut 3 pcs 2 ...

Page 95: ... and then fix wiring with the clamp 5 Following to work of item 2 of 2 mount the electric parts box cover and the suction grille as before XCAUTIONX When exchanging the fan motors of the models MMU AP009 to AP030 take off lead wire from the clamp filter which is connected to CN334 of the fan motor to be exchanged and then connect the removed lead wire to a new fan motor Remarks Clamp Fan motor lea...

Page 96: ...ment 1 Enter your hand into the drain port and pass the connector of the drain pump lead wire through the wiring taking out port 2 Connect the drain hose to the drain pump as before NOTE Insert the drain hose up to the end of the drain pump connecting part apply band to the white mark position of the hose and then set the band knob upward 3 Return the drain pump to the indoor unit and then mount i...

Page 97: ... Attachment 1 Mount the float switch assembly as before with the fixing screw NOTE When mounting match hole of the float switch assembly with projection of the drain pan 2 Mount the bell mouth as before Ø4 10 8 pcs 3 Following to works of item 2 of 7 and works from 2 to 5 attach the parts as before Remarks 10 Drain pan 1 Detachment 1 Carry out works of item 1 of 4 item 1 of 6 item 1 of 7 and works...

Page 98: ... Peel the butyl rubber adhered to the main unit of the pulse motor valve PMV until PMV can be seen and then loosen the nuts fixing PMV motor with double spanner to remove PMV motor 2 Attachment 1 Mount PMV motor and relay connector as before NOTE Control the tightening torque for the PMV body and PMV motor to 7 84 0 98Nm Remarks PMV motor PMV body ...

Page 99: ...t side 4 Remove the fixing screws and then remove the piping cover Ø4 10 3 pcs 5 Remove the drain hose from the drain pump and remove the fixing screws to remove the drain pump stand Ø4 8 3 pcs 6 While pushing the heat exchanger remove the fixing band fixing screws and the heat exchanger Ø4 8 3 pcs 2 Attachment 1 Mount the heat exchanger with the fixing band and the fixing screws Ø4 8 3 pcs 2 Fix ...

Page 100: ...wer unit settings and perform the cooling cycle confirmation through the trial 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 controller operation EEPROM data read out 1 Refer to page 101 Replacement of P C board for indoor unit servicing and power on 2 Refer to page 101 Writing the read out EEPROM da...

Page 101: ...icing replacement procedures Step 1 Replace the P C board for indoor unit servicing At this time perform the same setting of the jumper wire J01 setting cut switch SW501 short circuit connector CN34 as the setting of the P C board before replacement Step 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 w...

Page 102: ...s for the temperature setting 3 5 Select the capacity by pushing buttons for the timer setting 4 For example 027 Type is set to 0012 Refer to CODE No 11 on page 104 6 Push SET button The setting completes if the setting data are displayed 5 Setting 4 way Cassette indoor unit model only 7 Using the set temperature buttons set to the CODE No DN 8 Using the timer time buttons set the dat 0001 9 Push ...

Page 103: ...op status 6 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 unit It takes approx 1 min until the remote controller 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 but...

Page 104: ...mined 0002 2 C flooring installation type 0 0001 No auto mode Automatically selection by cooling heating 0000 Heat pump connected outdoor unit Depending on model type Depending on capacity type 0099 Not determined 0099 Not determined 0099 Not determined Depending on Type 0003 3 deg Ts 1 5 0000 None 0002 Humidifier 0000 Not available 0000 Body sensor 0000 Standard 0000 Available 0001 Standard 0000 ...

Page 105: ... 105 FILE NO SVM 16041 11 EXPLODED VIEWS AND PARTS LIST 11 1 MMU AP0094HP1 E AP0124HP1 E AP0154HP1 E AP0184HP1 E AP0244HP1 E MMU AP0094HP1 E AP0124HP1 E ...

Page 106: ...230 43T97317 NUT FLARE 1 2 IN 1 1 231 43T97314 NUT FLARE 5 8 IN 1 232 43T82320 SOCKET 1 2 IN 1 1 233 43T82321 SOCKET 5 8 IN 1 234 43T11323 RUBBER CUSHION 3 3 3 3 3 236 43T97315 SCREW FIX PANEL 4 4 4 4 4 240 43T21441 MOTOR FAN SWF 230 60 2R 1 1 1 1 1 241 43T04318 COVER ASSY 1 1 1 1 1 242 43T39353 CAP NUT 1 1 1 1 1 244 43T77301 PUMP ASSY MDP 1401 1 1 1 1 1 245 43T51311 SWITCH ASSY FLOAT FS 0218 102 ...

Page 107: ... 107 FILE NO SVM 16041 11 2 MMU AP0274HP1 E AP0304HP1 E AP0364HP1 E AP0484HP1 E AP0564HP1 E MMU AP0274HP1 E AP0304HP1 E MMU AP0364HP1 E AP0564HP1 E ...

Page 108: ... 1 1 233 43T82321 SOCKET 5 8 IN 1 1 1 1 1 234 43T11323 RUBBER CUSHION 3 3 235 43T39352 PLATE WIND 4 4 4 236 43T97315 SCREW FIX PANEL 4 4 4 4 4 237 43T11324 RUBBER CUSHION 3 3 3 238 43T97316 WASHER 1 1 1 239 43T21439 MOTOR FAN ICF 280 150 1 1 1 1 240 43T21441 MOTOR FAN SWF 230 60 2R 1 1 241 43T04318 COVER ASSY 1 1 1 1 1 242 43T39353 CAP NUT 1 1 1 1 1 244 43T77301 PUMP ASSY MDP 1401 1 1 1 1 1 245 43...

Page 109: ... 1 1 1 404 43T60079 TERMINAL BLOCK 4P 1 1 1 1 1 405 43T60435 SERV TERMINAL 2P 20A 1 1 1 1 1 406 43T6V688 ASM PCB MCC 1570 1 1 1 1 1 Ref No Part No Description MMU AP 0274HP1 E 0304HP1 E 0364HP1 E 0484HP1 E 0564HP1 E 401 43T50347 SERVICE SENSOR φ6 2 2 2 2 2 402 43T50476 SERVICE SENSOR TA 1 1 1 1 1 403 43T50477 SERVICE SENSOR φ4 1 1 1 1 1 404 43T60079 TERMINAL BLOCK 4P 1 1 1 1 1 405 43T60435 SERV TE...

Page 110: ... 110 FILE NO SVM 16041 11 3 MMU AP0094HP1 TR AP0124HP1 TR AP0154HP1 TR AP0184HP1 TR AP0244HP1 TR MMU AP0094HP1 TR AP0124HP1 TR ...

Page 111: ... 1 230 43T97317 NUT FLARE 1 2 IN 1 1 231 43T97314 NUT FLARE 5 8 IN 1 232 43T82320 SOCKET 1 2 IN 1 1 233 43T82321 SOCKET 5 8 IN 1 234 43T11323 RUBBER CUSHION 3 3 3 3 3 236 43T97315 SCREW FIX PANEL 4 4 4 4 4 240 43T21441 MOTOR FAN SWF 230 60 2R 1 1 1 1 1 241 43T04318 COVER ASSY 1 1 1 1 1 242 43T39353 CAP NUT 1 1 1 1 1 244 43T77301 PUMP ASSY MDP 1401 1 1 1 1 1 245 43T51311 SWITCH ASSY FLOAT FS 0218 1...

Page 112: ... 112 FILE NO SVM 16041 11 4 MMU AP0274HP1 TR AP0304HP1 TR AP0364HP1 TR AP0484HP1 TR AP0564HP1 TR MMU AP0364HP1 TR AP0564HP1 TR MMU AP0274HP1 TR AP0304HP1 TR ...

Page 113: ...1 1 1 1 233 43T82321 SOCKET 5 8 IN 1 1 1 1 1 234 43T11323 RUBBER CUSHION 3 3 235 43T39352 PLATE WIND 4 4 4 236 43T97315 SCREW FIX PANEL 4 4 4 4 4 237 43T11324 RUBBER CUSHION 3 3 3 238 43T97316 WASHER 1 1 1 239 43T21439 MOTOR FAN ICF 280 150 1 1 1 1 240 43T21441 MOTOR FAN SWF 230 60 2R 1 1 241 43T04318 COVER ASSY 1 1 1 1 1 242 43T39353 CAP NUT 1 1 1 1 1 244 43T77301 PUMP ASSY MDP 1401 1 1 1 1 1 245...

Page 114: ... 1 1 1 404 43T60362 TERMINAL BLOCK 4P 1 1 1 1 1 405 43T60435 SERV TERMINAL 2P 20A 1 1 1 1 1 406 43T6V688 ASM PCB MCC 1570 1 1 1 1 1 Ref No Part No Description MMU AP 0274HP1 TR 0304HP1 TR 0364HP1 TR 0484HP1 TR 0564HP1 TR 401 43T50347 SERVICE SENSOR φ6 2 2 2 2 2 402 43T50476 SERVICE SENSOR TA 1 1 1 1 1 403 43T50477 SERVICE SENSOR φ4 1 1 1 1 1 404 43T60079 TERMINAL BLOCK 4P 1 1 1 1 1 405 43T60435 SE...

Page 115: ...8 Plate Fix Panel 313 43407149 Plate Fix Panel 314 43407150 Hook ABS 315 43407154 Cap AXIS POM 316 43403010 Cover Ass y Motor 317 43403011 Cover Ass y 318 43403012 Cover Ass y 319 43407155 Fix Motor ABS 320 43407156 Fix Motor ABS 321 43460125 Lead Motor 322 43400077 Panel Front PS W 323 43109423 Louver ABS 324 43109424 Louver ABS Model Name RBC U31 U31PG W E U31PG WS E U31PGS W E U31PGS WS E 1 1 1...

Page 116: ...used in multi air conditioners is 0 3kg m3 NOTE 1 If there 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...

Page 117: ...TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND ...

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Toshiba MMU-AP0094HP1-E, Service Manual

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