Toshiba Carrier MMD- AP0074BH2UL Service Manual Download Page 2

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CONTENTS

SAFETY CAUTION ............................................................................. 3

1. SPECIFICATIONS ....................................................................... 8

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ......................... 9

3. WIRING DIAGRAM.................................................................... 12

4. PARTS RATING ......................................................................... 13

5. REFRIGERATIN GCYCLE DIAGRAM....................................... 14

6. CONTROL OUTLINE ................................................................ 15

7. APPLIED CONTROL AND FUNCTION .................................... 22

8. TROUBLESHOOTING............................................................... 45

9. DETACHMENTS ........................................................................ 72

10. P.C. BOARD EXCHANGE PROCEDURES ............................... 79

11. EXPLODED VIEWS AND PARTS LIST ..................................... 84

Summary of Contents for Carrier MMD- AP0074BH2UL

Page 1: ...tedType MMD AP0074BH2UL MMD AP0094BH2UL MMD AP0124BH2UL MMD AP0154BH2UL MMD AP0184BH2UL MMD AP0214BH2UL MMD AP0244BH2UL MMD AP0304BH2UL MMD AP0364BH2UL MMD AP0424BH2UL MMD AP0484BH2UL PRINTED IN JAPAN Nov 2011 ToMo MMD AP0484BH2UL FILE NO A11 011 Revision 1 Jun 2017 ...

Page 2: ...ON VIEWS EXTERNAL VIEWS 9 3 WIRING DIAGRAM 12 4 PARTS RATING 13 5 REFRIGERATIN GCYCLE DIAGRAM 14 6 CONTROL OUTLINE 15 7 APPLIED CONTROL AND FUNCTION 22 8 TROUBLESHOOTING 45 9 DETACHMENTS 72 10 P C BOARD EXCHANGE PROCEDURES 79 11 EXPLODED VIEWS AND PARTS LIST 84 ...

Page 3: ...d parties and the users due to troubles of the product after work when an incorrect work has been executed Mark Explanation Indicates prohibited items Forbidden items to do The sentences near an illustrated mark describe the concrete prohibited contents Indicates mandatory items Compulsory items to do The sentences near an illustrated mark describe the concrete mandatory contents Indicates caution...

Page 4: ...ise abnormally high pressuremay 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 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 refri...

Page 5: ...f 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 of oxygen is caused For the installation moving reinstallation work follow to the Installation Manu...

Page 6: ...o 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 charging composition ...

Page 7: ...serve also for R22 are necessary as the general tools 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 7 Screwdriver 2 Torque wrench 8 Spanner or Monkey wrench 3 Pipe cutter 9 Hole core drill 4 Reamer 10 Hexagon wrench Opposite side 4mm 5 Pipe bender 11 Tape measure 6 Level vial 12 Metal saw Also prepare the following equipments for other installation method and run check 1 Clamp met...

Page 8: ...L AP0304BH2UL AP0364BH2UL AP0424BH2UL AP0484BH2UL Cooling Capacity kBtu h 21 24 30 36 42 48 Heating Capacity kBtu h 24 27 34 40 47 5 54 Electrical Power supply characteristics Power consumption kW 0 091 0 091 0 091 0 106 0 142 0 142 Appearance Height In Unit Width In Dimension Depth In Height In Packing Width In Depth In Total Weight Unit lb Packed unit lb Heat exchanger Fan unit Fan Standard air ...

Page 9: ...S 2 1 Medium Static DuctedType MMD AP0074BH2UL MMD AP0094BH2UL MMD AP0124BH2UL 0 1 2 3 1 4 5 6 2 7 6 8 8 6 2 8 5 6 2 9 1 A 37 A 9 B 8 8 4 0 0 0 4 2 C 3 4 5 8 C D D E E E E C D 1 1 1 1 C 5 A F 3 1 A F 5 F 8 1 C G 1 1 1 8 1 C 8 8 C D 1 1 8 1 ...

Page 10: ... 10 MMD AP0154BH2UL MMD AP0184BH2UL 0 1 2 3 1 4 5 6 2 7 6 8 8 6 2 8 5 6 2 9 1 A 37 A 9 B 8 8 4 0 0 0 4 2 C 3 4 5 8 C D D E E E E C D 1 1 1 1 C 5 A F 3 1 A F 5 F 8 1 C G 1 1 1 8 1 C 8 8 C D 1 1 8 1 ...

Page 11: ...dth 53 2 1350 Ceiling opening size 55 1 1400 Air discharge Electrical control box Air discharge Electrical control box Ceiling Air intake Air filter locally procured Electrical control box Ceiling Ceiling opening size 5 9 150 or more 5 9 150 or more Drain pan Drain pump check cover 1 In the case of under air intake type 17 7 450 Min Ceiling opening size Space required for installation and servicin...

Page 12: ... 12 3 WIRING DIAGRAM 0 11 2 2 3 2 2 24 2 4 5 0 3 63 6 6 7 8 9 3 8 9 2 24 9 2 2 3 9 834 0 9 0 3 A 3 93 3B 33 3 5 8 9 8 2 2 33 3 8 8 8 9 3 9 8 9 93 8 C 4 2 2 0 0 D 0 3 5 3 E 7 3 E 33 E 3 E ...

Page 13: ...ead wire length 47 2 in 1200mm Vinyl tube Black Ø6 Lead wire length 47 2 in 1200mm Vinyl tube Red 4 PARTS RATING 0214BH2UL 0244BH2UL 0304BH2UL 0364BH2UL 0424BH2UL 0484BH2UL MF 240U150 2A ADP 1406 FS 0218 102 EFM MD12TF 1 EFM 40YGTF 2 EFM 60YGTF 1 CH 43 2Z T Lead wire length 24 3 in 618mm Ø4 Lead wire length 47 2 in 1200mm Vinyl tube Blue Ø6 Lead wire length 47 2 in 1200mm Vinyl tube Black Ø6 Lead ...

Page 14: ...ue 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 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 ...

Page 15: ...heck code is again displayed on the remote controller 1 Based on the operation mode selecting command from the remote controller the operation mode is selected 1 Adjustment range Remote controller setup temperature F C Remarks Air speed rpm Air direction adjustment Wired type Wireless type COOL DRY 64 F 18 C to 84 F 29 C 64 F 18 C 86 C to 30 C HEAT 64 F 18 C to 84 C 29 C 61 F 16 C to 86 F 30 C 2 U...

Page 16: ...L HEAT S3 S5 S7 S9 SB SD SF S0 SD SB S9 S7 S5 S3 S0 Controlling operation in case when thermo of remote controller works is same as a case when thermo of the body works If the air speed has been changed once it is not changed for 3 minutes However when the air volume is exchanged the air speed changes When cooling operation has started select a downward slope for the air speed that is the high pos...

Page 17: ...1 In heating operation the higher temperature of TC2 sensor and TCJ sensor is compared with temperature of TC1 sensor and then the lower temperature is used to set the upper limit of the fan tap When B zone has continued for 6 minutes the opera tion shifts to C zone In defrost time the control point is set to 10 8 F 6 C ITCJ Temperature of indoor heat exchanger sensor In D and E zones priority is ...

Page 18: ...for 30 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 54 F 12 C and TC2 54 F 12 C and TCJ 54 F 12 C 2 20 minutes passed after stop P2 Q2 F C L N M value When the power supply is...

Page 19: ...ates 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 operation and a check code is issued 1 The filter sign is displayed with LC by sending the filter re...

Page 20: ...1 Normal thermo OFF During heating the indoor unit goes thermo OFF as the heating temperature setting is reached 2 During heating the fan rotates at a breeze speed UL or lower or remains stationary to prevent cold air from being discharged including defrosting operation 3 Forced thermo OFF HEAT operation is unavailable because at least one indoor unit is operating in COOL DRY mode under priority c...

Page 21: ...sign was found during installation work or you carelessly opened the service panel drain pump of the main unit during operation the check code P12 is output and the motor stops 1 The save operation starts when SAVE button on the remotecontroller is turned on 2 While the save operation is performed segment goes on the screen of the wired remote controller 3 The request capacity ratio is restricted ...

Page 22: ...Drain pump Indoor fan motor Louver motor Outside output Max 8 units are connectable Main Simple wired remote controller Up to 2 sets Function setup Key switch Power circuit EEPROM TC1 sensor TA sensor TC2 sensor TCJ sensor HA Power supply 208 230 1 60 Remote controller communication circuit Start Alarm Ready Thermostat ON COOL HEAT FAN Float input Fan motor control circuit AC synchronous signal in...

Page 23: ...oard Power supply circuit Remote controller communication circuit Buzzer Sensor circuit Display LED Function setting SW BUS Communication circuit Driver L L2 Sub P C board MCC 1431 Main P C board MCC 1510 DC20V DC5V DC12V DC280V Drain pump Indoor fan motor Louver motor Outside output EEPROM TC1 sensor TA sensor TC2 sensor TCJ sensor HA Start Alarm Ready Thermostat ON COOL HEAT FAN Float input Fan ...

Page 24: ... remote controller kit Sensor P C board Power supply circuit Remote controller communication circuit Buzzer Sensor circuit Display LED Function setting SW U1 U2 Indoor outdoor communication Outdoor unit Power source 208 230 1 60 BUS Communication circuit Driver L L2 Sub P C board MCC 1431 Main P C board MCC 1510 DC20V DC5V DC12V DC280V Drain pump Indoor fan motor Louver motor Outside output EEPROM...

Page 25: ...put CN213 DC 5V Drain pump power supply CN309 AC 208 230V Indoor Outdoor communication CN40 HA T10 CN61 DC 12V Option output CN60 DC 12V CHK CN71 DC 5V DISP CN72 DC 5V Flout input CN80 DC 12V EXCT CN73 DC 5V Remote controller power LED D203 TA sensor CN104 DC 5V Remote controller CN41 DC 20V TCJ sensor CN102 DC 5V Microcomputer operation LED D02 TC2 sensor CN101 DC 5V Power supply CN67 ...

Page 26: ...s start stop control via remote controller ON during operation HA answerback signal ON while alarm ON ON during defrosting of outdoor unit ON when Real thermo ON Comp ON ON when operation mode is cooling line Cool Dry Cooing Heating AUTO cooling ON when operation mode is heating line Heat Cooling Heating AUTO heating ON when indoor fan is ON Generates test code L30 and automatically shuts down air...

Page 27: ...ay in the display part disappears and status becomes the normal stop status 7 2 Functions at test run 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 ...

Page 28: ...e set button Temperature set button After checking the receiving sound Pi After checking the receiving sound Pi immediately push Temperature set button to immediately push Temperature set button to set to 66 F 19 C set to 84 F 29 C After checking the receiving sound Pi After checking the receiving sound Pi immediately push Temperature set button to immediately push Temperature set button to set to...

Page 29: ...e normal Abnormal time Either one of float SW or fan motor is abnormal 2 Restricted to the normal time if short 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 W...

Page 30: ...ove 2 Each time the Select unit side of the button is pushed one of the indoor unit Nos under group control is displayed in turn Then the fan of the selected indoor unit move 3 Use the button to select the CODE No DN code of the desired function 4 Use the button to select the desired SET DATA associated with the selected function 5 Push the button The display changes from flashing to steady To cha...

Page 31: ...001 Cooling only No display of AUTO HEAT 0000 Heat pump 10 Type 0004 Medium static ducted type 11 Indoor unit capacity 0000 Unfixed 0001 to 0034 According to capacity type 12 Line address 0001 No 1 unit to 0030 No 30 unit 0099 Unfixed 13 Indoor unit address 0001 No 1 unit to 0064 No 64 unit 0099 Unfixed 14 Group address 0000 Individual 0002 Follower unit of group 0001 Header unit of group 0099 Unf...

Page 32: ...0007 015 type 0009 018 type 0011 024 type 0010 021 type 0012 027 type 0013 030 type 0015 036 type 0017 048 type 0016 042 type 0018 056 type 0021 072 type 0023 096 type 92 Outside interlock release condition 0000 Operation stop 0001 Release communication signal receive 0000 Operation stop DIP Switch position SET DATA External static pressure 0000 0001 0003 0006 0 008psi 55Pa 0 013psi 90Pa 0 017psi ...

Page 33: ...ion 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 4UL Input IFCB 4UL 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 5 6 CN13...

Page 34: ... UNIT LOUVER button button at left side the indoor unit numbers in group control are displayed successively In this time the fan of the selected indoor unit only turns on 3 Using the temperature setup button specify the CODE No 31 4 Using the timer time button select the SET DATA At shipment 0000 The setup data are as follows SET DATA 0000 0001 Handling of operation of air to air heat exchanger or...

Page 35: ... 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 temperature setup button s...

Page 36: ...mer time buttons set 1 to the line address 7 Push SET button OK when display goes on 8 Group address Using the temperature setup buttons set 14 to the CODE No 9 Using timer time buttons set 0000 to Individual 0001 to Header unit and 0002 to follower unit 10 Push SET button OK when display goes on 11 Push TEST button Setup completes The status returns to the usual stop status Note 1 When setting th...

Page 37: ...remote controller Group control unit other unit numbers are also displayed every pushing UNIT LOUVER button button at left side 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...

Page 38: ...R SWING FIX button Ø 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 Ø 4 Every pushing UNIT LOUVER button button at left side the indoor unit No in the identical piping is displayed one after the other Only fan and louver of the selected indoor unit...

Page 39: ... the fan and louvers of the selected unit will be energized Ø 3 Push the TEMP buttons repeatedly to select 13 for CODE No Ø 4 Push the TIME buttons repeatedly to change the value indicated in the SET DATA sec tion 5 Push the SET SET button to save address Ø 6 Push left and of the UNIT LOUVER UNIT LOUVER button repeatedly to select another indoor unit addresses to change Repeat steps 4 through 6 to...

Page 40: ...ress Change are displayed Ø 2 Select line address using UNIT LOUVER SWING FIX button Ø 3 Push the SET button The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is displayed and the fan and the louver are on First the current indoor address is displayed Line address is not displayed Ø 4 TIME button push up down the indoor address of the SET DATA The set ...

Page 41: ...or function of the remote controller is utilized Method 1 Push CL TEST buttons simultaneously for 4 seconds or more to change the mode to service monitor mode 2 Push TEMP button to set the item code to FF 3 The display of A part in the following figure is counted as 0005 0004 0003 0002 0001 0000 with 5 seconds interval When 0000 appear the error was cleared However counting from 0005 is repeated o...

Page 42: ...p the service monitor mode The service monitor goes on and firstly the temperature of the CODE No 00 is displayed Ø 2 Push TEMP button to change CODE No CODE No to the CODE No to be monitored For display code refer to the following table Ø 3 Push UNIT LOUVER button button at left side to change to item to be monitored The sensor temperature of indoor unit or outdoor unit in its refrigerant line an...

Page 43: ...or unit individual data 2 4 50 60 Compressor 1 revolutions 10 rps 0642 64 2rps 51 61 Compressor 2 revolutions 10 rps 52 62 Compressor 3 revolutions 10 rps 53 63 Outdoor fan mode 1 mode 0058 58 mode 54 64 Compressor IPDU 1 heat sink temperature 1 F 0075 75 F 24 C 55 65 Compressor IPDU 2 heat sink temperature 1 F 56 66 Compressor IPDU 3 heat sink temperature 1 F 57 67 Outdoor fan IPDU heat sink temp...

Page 44: ...uver of the selected indoor unit operate Procedure 3 1 Using temp setup buttons specify CODE No 33 CODE No 33 Fahrenheit display 2 Using timer TIME buttons change the line address from 0001 to 0000 3 Push SET button In this time the setup finishes when the display changes from flashing to lighting Procedure 4 After check of the changed contents push TEST button Setup is determined When pushing TES...

Page 45: ...ld it just be the 3 minute delay period 3 minutes after compressor shutdown Could it just be the air conditioner having gone thermo OFF Could it just be the air conditioner operating in fan mode or put on the timer Could it just be the system going through initial communication 2 An indoor fan would not start Could it just be cold air discharge prevention control which is part of heating 3 An outd...

Page 46: ...indoor header and follower units cannot be maintained F01 ALT Indoor heat exchanger temperature sensor TCJ error Heat exchanger temperature sensor TCJ has been open short circuited F02 ALT Indoor heat exchanger temperature sensor TC2 error Heat exchanger temperature sensor TC2 has been open short circuited F03 ALT Indoor heat exchanger temperature sensor TC1 error Heat exchanger temperature sensor...

Page 47: ...een set as master remote controller in two remote controller control alarm and shutdown for header unit and continued operation for follower unit Check code Display of receiving unit Typical fault site Description of error TCC LINK central control Outdoor 7 segment display Indicator light block Sub code Flash C05 No indication when main remote controller also in use Faulty central control communic...

Page 48: ...ant line E20 Connection to other refrigerant line found during automatic address setting 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 manual...

Page 49: ...ge temperature sensor TD2 has been detected H16 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 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 Wi...

Page 50: ...it P13 P13 ALT Outdoor liquid backflow detection error State of refrigerant cycle circuit indicates liquid backflow operation P15 01 TS condition 02 TD condition P15 ALT Gas leak detection Outdoor suction temperature sensor TS1 detects sustained and repeated high temperatures that exceed standard value P17 P17 ALT Outdoor discharge TD2 temperature error Outdoor discharge temperature sensor TD2 det...

Page 51: ...ted H03 01 Compressor 1 02 Compressor 2 03 Compressor 3 H03 Current detection circuit error Abnormal current is detected while inverter compressor is turned off P04 01 Compressor 1 02 Compressor 2 03 Compressor 3 P04 ALT Activation of high pressure SW High pressure SW is activated P07 01 Compressor 1 02 Compressor 2 03 Compressor 3 P07 ALT Heat sink overheating error Temperature sensor built into ...

Page 52: ...ry Error history can be accessed regardless of whether the air conditioner is in operation or shut down Check code Indoor unit No in which fault has occurred Procedure To be performed when system at rest 1 Invoke the SERVICE CHECK mode by pushing the buttons simultaneously and holding for at least 4 seconds The letters SERVICE CHECK light up and the check code 01 is displayed indicating the error ...

Page 53: ...erloading E19 Error in number of outdoor header units E20 Detection of refrigerant piping communication error during automatic address setting E23 Faulty transmission in outdoor outdoor communication E25 Duplicated follower outdoor address E26 Faulty reception in outdoor outdoor communication dropping out of outdoor unit E28 Outdoor follower unit error E31 IPDU communication error P01 Indoor AC fa...

Page 54: ...discharge temperature sensor TD1 H06 Abnormal drop in low pressure sensor Ps reading Protective shutdown of outdoor unit H07 Abnormal drop in oil level H08 Error in temperature sensor for oil level detection circuit TK1 TK2 TK3 TK4 or TK5 H15 Wiring installation error or detachment of outdoor discharge temperature sensor TD2 H16 Oil level detection circuit error Error in outdoor unit TK1 TK2 TK3 T...

Page 55: ...est run in progress Setting incompatibility automatic cooling heating setting for model incapable of it and heating setting for cooling only model Light block Check code Cause of fault Operation Synchronized blinking Timer Ready Operation Timer Synchronized blinking Ready Alternate blinking Operation Timer Ready ...

Page 56: ...cation error detected at indoor end Stop of corresponding unit There is no communication from 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 turne...

Page 57: ... in progress Outdoor automatic address setting is started while automatic address setting for indoor units is in progress Perform automatic address setting again after disconnecting communication cable to that refrigerant line E15 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...

Page 58: ...ted to other outdoor units for at least 30 seconds continuously Check power supply to outdoor units Is power turned on Check connection of tie cables between 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 E25 I F Duplicated fo...

Page 59: ... 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 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 sensor C...

Page 60: ...or 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 F16 I F Outdoor pressure sensor wiring error Pd Ps All stop Readings of high ...

Page 61: ... wiring particularly for open phase Check connection of connectors terminals on A3 IPDU P C board 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 specifie...

Page 62: ...Check 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 co...

Page 63: ...for disconnection of TK3 sensor Check resistance characteristics of TK3 sensor Check for connection error involving TK1 TK2 TK3 TK4 and TK5 sensors Check for faulty operation in SV3E or SV3F valve Check for clogging in oil equalizing circuit capillary and faulty operation in check valve Check for refrigerant entrapment inside compressor No temperature change is detected by TK4 despite compressor h...

Page 64: ...7 Indoor unit Connection of group control cable to stand alone indoor unit Stop of corresponding unit There is at least one stand alone indoor unit to which group control cable is connected Check indoor addresses L08 L08 Indoor unit Indoor group addresses not set Stop of corresponding unit Address setting has not been performed for indoor units Check indoor addresses Note This code is displayed wh...

Page 65: ...in external device 2 Check for defect in indoor P C board When external device is not connected to CN213 connector 1 Check for defect in indoor P C board I F Extended IC error Continued operation There is part failure in P C board I F Check outdoor P C board I F P01 Indoor unit Indoor fan motor error Stop of corresponding unit Check the lock of fan motor AC fan Check wiring P03 P03 I F Discharge t...

Page 66: ...erter DC voltage is too high overvoltage or too low undervoltage Check for defect in outdoor P C board I F 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side Inverter DC voltage Vdc error compressor MG CTT error P07 P07 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU I F Heat sink overheating error All stop Temperature sensor built into IGBT TH is overheated Check p...

Page 67: ...s side liquid side to confirm full opening Check PMVs PMV1 2 for clogging Check resistance characteristics of TS1 sensor Check for defect in 4 way valve Check SV4 circuit 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 226 F 108 C Check for insufficiency in refrigerant quantity Check PMVs...

Page 68: ...f high pressure protection All stop Pd sensor detects pressure equal to or greater than 522psi 3 6MPa Check for defect in Pd pressure sensor Check service valves gas side liquid 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 ou...

Page 69: ...ck fan motor Check connection of fan motor connector Check for defect in fan IPDU P C board All stop Sub code C Higher temperature than the specified value is detected during operation 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 ...

Page 70: ...r defect in central control communication line Check termination resistance setting Check power supply for devices at other end of central control communication line 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 in...

Page 71: ...mperature F C 4 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 113 45 122 50 131 55 140 60 149 65 158 70 167 75 176 80 Resistance kΩ Temperature F C 4 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 113 45 122 50 131 55 140 60 149 65 158 70 167 75 176 80 Resistance kΩ 10 15 5 20 0 100 150 50 200 0 10 15 5 20 0 100 150 50 200 Resistance kΩ 55 F 10 C ...

Page 72: ...it fixed plate and then remove the conduit fixing plate 5 Take off fixing screws of the electric parts box and then remove the electric parts box Remarks Electric parts box CN210 Fan motor CN100 TC1 sensor CN101 TC2 sensor CN102 TCJ sensor CN104 TA Room temperature sensor 9 DETACHMENTS CAUTION Be sure to put on the gloves at disassembling work otherwise an injury will be caused by a part etc WARNI...

Page 73: ...late fixed screw No Part name Procedure Cautions when attaching the electric parts box Remarks Using cable clamp bundle each extra lead wire so that it is not caught in the fan and then attach the electric parts box After attaching the electric parts box pull the extra wire in the electric parts box and bundle it with clamp etc Silocco fan fan motor 2 1 Detachment 1 Take off fixed screws and then ...

Page 74: ...48 take off also screws which fix the fan case to the top plate The fan assembly is fixed by the hooking claw at the upper side of the main unit Lift up it once and pull downward to remove the hooking claw Fan motor connector TA sensor connector Hexagonal screws For fixing the fan assembly and the main unit y Fan base Fan case Silocco fan Hexagonal wrench Fan fixed screw 6 Insert the hexagonal wre...

Page 75: ...occo fan in the arrow direc tion as shown in the right figure Cautions when attaching the Silocco fan Attach the Silocco fan in the reverse pro cedure of detachment 2 Adjust position so that clearance between the Silocco fan and the fan case becomes even and then fix the fan Fan motor Motor band Fan case Motor earth wire Fan case Fan case fixed screws 2 pieces right left each Fan case cover Attach...

Page 76: ...epare a water receiver take off the drain cap and then extract drain water accumu lated in the drain pan 3 Take off screws of the drain pan fixed plate to remove the drain pan fixed plate 4 Remove the drain pan from the main unit 1 Remove the drain pan Refer to No 3 2 Take off screws of the float switch fixed plate NOTE When taking off the drain cap be sure receive drain water using a bucket etc M...

Page 77: ...or Tube color Black No Part name Drain pump Procedure 1 Detachment 1 Remove the drain pan Refer to No 3 Remarks 5 2 Take off screws for the fixed plate of the main unit and the pump 4 positions 3 Take off screws of the drain pump fixed plate to remove the drain pump 1 Take off fixing screw for the check port cover at right side 5 positions 2 Pull and take off the sensors from the sensor holder of ...

Page 78: ...t Front side and the heat exchanger to remove the heat exchanger Remove TC1 sensor TC2 sensor and TCJ sensor from the sensor holder Remove the relay connector of PMV lead wire in the electric parts and then pull off it from the bushing Check port cover B Check port cover fixing screws Side plate Left Heat exchanger fixing screws Main unit Front side Heat exchanger fixing screws Front side NOTE Rec...

Page 79: ...ure 2 ò Write the read data to EEPROM Procedure 3 ò Power reset If in group operation reset the power for all indoor units which are connected to the remote controller Method 2 Before replacement the setup data can not be read out by the wired remote controller Replace service P C board power ON Procedure 2 ò Write the data such as option input selection setup to EEPROM Procedure 3 According to th...

Page 80: ...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 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 ...

Page 81: ... 2 SW02 Bit 1 Bit 2 Selected content No use Setup of external static pressure No use Setup of external static pressure MMD AP BH2UL series OFF 1 OFF 1 At shipment OFF OFF OFF OFF A B A B A B Indoor unit P C board Remote controller Group wire Group wire Case 1 Remove the group wire of the terminal blocks A and B of the changed indoor unit and then install the remote controller only Remove CN41 conn...

Page 82: ...e address data into EEPROM Repeat the above procedure 1 5 Using the set temperature TEMP buttons set to the CODE No 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 r1 1 If data disagree change the displayed setup data to that in the previous memorandum by the timer time TIMER SET but...

Page 83: ...ontrol address Heating suction temp shift PRE DEF indication selection Cooling only Type Indoor unit capacity See below table Refrigerant line address Indoor unit address Group address Automatic restart from power cut Option input selection CN80 Thermo output selection T10 Input selection T10 Sensor selection Timer set Wired remote controller Memo Be sure to set as 0004 Indoor unit capacity CODE N...

Page 84: ...ctedType MMD AP0074BH2UL AP0094BH2UL AP0124BH2UL AP0154BH2UL AP0184BH2UL 216 243 244 241 242 202 203 226 227 239 240 201 237 238 223 214 215 249 217 228 229 230 222 231 232 1 4 219 233 235 3 8 220 234 236 1 2 218 221 245 246 247 248 250 204 225 224 212 211 206 ...

Page 85: ...IN 233 43F47686 NUT FLARE 3 8 IN 234 43047688 NUT FLARE 1 2 IN 235 43049776 SOCKE 3 8 IN 236 43149353 SOCKET 1 2 IN 237 43104210 PLATE SHIELD UNDER 238 43104209 PLATE SHIELD UNDER 239 43104213 PLATE SHIELD UNDER 240 43104212 PLATE SHIELD UNDER 241 43109433 FLANGE ASSY 242 43109432 FLANGE ASSY 243 43104215 PLATE ASSY SHIELD 244 43104214 PLATE ASSY SHIELD 245 43166013 REMOTECONTROLLER SX T A01UE 246...

Page 86: ... Reactor 407 43054107 Relay LY1f 408 4316V483 P C Board Ass y MCC 1510 409 4316V484 P C Board Ass y MCC 1431 Model Name MMD AP 0074BH2UL 0094BH2UL 0124BH2UL 0154BH2UL 0184BH2UL 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CN61 C302 FOR UNIT FOR REMOTE CONTROL B A U2 1 3 2 AMP 407 L301 CN44 CN60 CN102 CN50 PNL CN80 T10 OPTION CN81 3WAY CN33 CN40 CN103 CN...

Page 87: ...4BH2UL AP0244BH2UL AP0304BH2UL AP0364BH2UL AP0424BH2UL 216 243 241 202 203 226 208 213 207 239 201 237 223 214 249 217 228 229 230 219 231 232 3 8 222 233 235 5 8 218 221 245 246 247 248 250 204 225 224 212 211 206 ...

Page 88: ...06 212 43151294 SWITCH FLOAT FS 0218 102 213 43125163 SHAFT 214 43172221 PAN ASSY DRAIN 216 43171080 SOCKET PAN DRAIN 217 431S8138 LABEL WARNING 218 43F19904 HOLDER SENSOR TS 219 43F47609 BONNET 3 8 IN 221 43107215 HOLDER SENSOR 222 43194029 BONNET 5 8 IN 223 43179110 PLUG 224 43179126 RUBBER PUMP DRAIN 225 43170233 HOSE DRAIN 226 4312C092 MOTOR FAN MF 240U150 2A 228 43146743 MOTOR PMV EFM MD12TF ...

Page 89: ... Reactor 407 43054107 Relay LY1f 408 4316V483 P C Board Ass y MCC 1510 409 4316V484 P C Board Ass y MCC 1431 Model Name MMD AP 0214BH2UL 0244BH2UL 0304BH2UL 0364BH2UL 0424BH2UL 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CN61 C302 FOR UNIT FOR REMOTE CONTROL B A U2 1 3 2 AMP 407 L301 CN44 CN60 CN102 CN50 PNL CN80 T10 OPTION CN81 3WAY CN33 CN40 CN103 CN...

Page 90: ... 90 MMD AP0484BH2UL ...

Page 91: ... 43179110 PLUG 224 43179126 RUBBER PUMP DRAIN 225 43170233 HOSE DRAIN 226 4312C092 MOTOR FAN MF 240U150 2A 228 43146743 MOTOR PMV EFM MD12TF 1 230 43146723 BODY PMV 231 43149355 NUT FLARE 3 8 IN 232 43049776 SOCKET 233 43149352 NUT FLARE 5 8 IN 235 43149354 SOCKET 237 43104208 PLATE SHIELD UNDER 239 43104211 PLATE SHIELD UNDER 241 43109431 FLANGE ASSY 243 43104214 PLATE ASSY SHIELD 245 43166013 RE...

Page 92: ...TCI TE T TC2 TC TC1 409 408 404 405 406 401 402 403 Location Part No Description No 401 43050425 Sensor Ass y Service TC F6 TC2 TCJ 402 43F50426 Sensor Service TA 403 43150320 Sensor Ass y Service TG F4 TC1 404 43160574 Terminal 4P 405 43160626 Terminal Block 2P 20A 406 43158193 Reactor 407 43054107 Relay LY1f 408 4316V483 PC Board Ass y MCC 1510 409 4316V484 PC Board Ass y MCC 1431 Model Name MMD...

Page 93: ...entration buildings however the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space individual control energy conservation by curtailing heat and carrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners If a single u...

Page 94: ...vision 1 Page 86 89 92 The contents change of Description of service parts Jun 2017 TOSHIBA CARRIER CORPORATION 72 34 Horikawa cho Saiwai ku Kawasaki shi Kanagawa 212 8585 JAPAN Copyright 2017 TOSHIBA CARRIER CORPORATION ALL Rights Reserved ...

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