Toshiba MMD-AP0076BHPUL Service Manual Download Page 2

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CONTENTS

PRECAUTIONS FOR SAFETY ................................................................................ 6

1. SPECIFICATIONS

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FAN CHARACTER ISTICS

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......... 1

3. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

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4. WIRING DIAGRAMS ...............................................................................................

5. PARTS RATING......................................................................................................

6. REFRIGERANT CYCLE DIAGRAM .......................................................................

7. CONTROL OUTLINE.............................................................................................. 2

8. APPLIED CONTROL AND FUNCTIONS

(INCLUDING CIRCUIT CONFIGURATION) ..................................

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8-1. Indoor controller block diagram ........................................................................................

8-1-1. In Case of Connection of Wired (Simple) Remote Controller

............................. 2

8-1-2. In Case of Connection of Wireless Remote Controller

....................................... 2

8-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote

Controller .................................................

........................................................

.......

8-2. Indoor Print Circuit Board MCC-1631

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8-3. Optional connector specifications of indoor P.C. board

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8-4. Test operation of indoor unit .............................................................................................

8-5. Method to set indoor unit function DN code ....................................................................

8-6. Applied control of indoor unit ...........................................................................................

TROUBLESHOOTING ............................................................................................

9-1. Overview ..............................................................................................................................

9-2. Troubleshooting method ....................................................................................................

9-3. Troubleshooting based on information displayed on remote controller .......................

9-4. Check codes displayed on remote controller and SMMS outdoor unit

(7-segment display on I/F board) and locations to be checked ....................................

9-5. Sensor characteristics .......................................................................................................

10.

Replacement of P.C.Board for Indoor Unit Serviceing

...................................

11.

DETACHMENTS .............................................................................................

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12. EXPLODED VIEWS AND PARTS LIST .........................................................

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Summary of Contents for MMD-AP0076BHPUL

Page 1: ...ncealed Duct Standard Type MMD AP0076BHPUL MMD AP0096BHPUL MMD AP0126BHPUL MMD AP0156BHPUL MMD AP0186BHPUL MMD AP0216BHPUL MMD AP0246BHPUL MMD AP0306BHPUL MMD AP0366BHPUL MMD AP0426BHPUL MMD AP0486BHPUL MMD AP0546BHPUL Revised on December 2020 FILE NO SVM 20100 1 ...

Page 2: ...ontroller and Wireless Remote Controller 30 8 2 Indoor Print Circuit Board MCC 1631 31 8 3 Optional connector specifications of indoor P C board 32 8 4 Test operation of indoor unit 33 8 5 Method to set indoor unit function DN code 34 8 6 Applied control of indoor unit 37 9 TROUBLESHOOTING 51 9 1 Overview 51 9 2 Troubleshooting method 52 9 3 Troubleshooting based on information displayed on remote...

Page 3: ... knowledge 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 thi...

Page 4: ... 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 the product ...

Page 5: ...RNING 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 the unit Doin...

Page 6: ... before proceeding with the work When you have noticed that some kind of trouble such as when an error display has appeared there is a smell of burning 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 pe...

Page 7: ...r 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 injuring a person below While carrying out the work wear a helmet for protection from falling objects When executing address ...

Page 8: ... 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 R410A For an ai...

Page 9: ...tight 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 insulation resistan...

Page 10: ...tall 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 themselves or receive electric shocks if they poke their fingers or other objects into the indoor unit while the air ...

Page 11: ...ower supply 1Ph 60Hz 230V 208 230V A kW A Zinc hot dipping steel plate Model name Panel Color Height in Width in Depth in Height in Width in Depth in Main unit Ibs Ceiling panel Ibs Heat exchanger Finned tube Fan Centrifugal Multi Balde Standard air flow H M L cfm Motor W External static pressure in WG 0 4 0 4 0 4 Air filte Standard filter attached Controller Sound pressure level H M L dB Sound po...

Page 12: ...nel 29 6 29 6 29 6 Outer diamension 39 4 39 4 55 2 Main unit 10 9 10 9 10 9 Ceiling panel Appearance Main unit 1 36 2 15 0 89 Starting current 1 29 0 140 0 210 Power consumption 0 130 0 96 1 35 Electrical characteristics Running current 17 0 20 0 24 0 15 4 18 0 21 0 MMD AP0156BHPUL MMD AP0186BHPUL MMD AP0216BHPUL Note 1 The cooling capacities and electrical characteristics are measured under the c...

Page 13: ...on Main unit Ceiling panel 55 2 55 2 10 9 10 9 10 9 55 2 29 6 Ceiling panel Appearance Main unit Starting current Power consumption 0 210 0 220 0 330 2 15 2 21 2 92 Running current 1 35 1 41 2 12 Electrical characteristics 27 0 34 0 40 0 24 0 30 0 36 0 MMD AP0246BHPUL MMD AP0306BHPUL MMD AP0366BHPUL Note 1 The cooling capacities and electrical characteristics are measured under the conditions spec...

Page 14: ...9 6 29 6 10 9 10 9 Outer diamension Main unit 10 9 55 2 29 6 Appearance Main unit Ceiling panel Starting current 2 92 2 98 Power consumption 0 330 0 340 0 340 2 98 Running current 2 12 2 18 2 18 Electrical characteristics 47 5 54 0 60 0 42 0 48 0 54 0 MMD AP0426BHPUL MMD AP0486BHPUL MMD AP0546BHPUL 14 Note 1 The cooling capacities and electrical characteristics are measured under the conditions sp...

Page 15: ...High tap Low 0 4 in WG 0 4 0 4 in WG Mid tap 0 12 in WG High tap External static pressure in WG 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 100 200 300 400 500 600 700 800 900 1000 Air flow rate CFM AP0186 type Standard air volume 624 CFM Standard filter pressure loss 0 6 in WG High tap 0 4 in WG High tap 0 12 in WG High tap 0 4 in WG Low tap tap 0 4 in WG Mid 0 26 in WG High tap External static pressure ...

Page 16: ...ressure and air flow are determined Plot the external static pressure and air flow on the below graph to determine the right speed fan step setting For example Job site requirement is to deliver 400 CFM at 0 4 in WG external static pressure Using the below graph external static pressure on vertical axis and air flow on horizontal axis the star mark indicates the job site requirement The star mark ...

Page 17: ...0126 Model MMD AP0156 AP0186 AP0216 AP0546 External dimensions of flange C Main unit dimension A Hanging bolt pitch B 10 8 275 180 7 1 D C L 13 6 345 Hanging bolt pitch 650 0 9 22 2 0 50 29 5 750 13 6 345 or more or more 2 8 70 2 0 50 43 1 7 113 5 4 5 131 5 2 236 9 3 187 5 7 4 14 0 355 16 3 415 22 4 570 1 0 25 Electrical control box Access panel Drain pan Drain pump check cover E 27 6 700 19 7 500...

Page 18: ...35 4 9 3 37 5 1 5 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 37 5 1 5 27 1 1 100 3 9 100 3 9 27 1 1 254 10 0 959 4 37 8 Bottom air intake AP0076 AP0096 AP0126 AP0156 AP0186 235 2 9 3 37 5 1 5 100 3 9 1375 54 1 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 100 3 9 37 5 1 5 27 1 1 100 3 9 100 3 9 27 1 1 254 10 0 1360 23 6 Rear ai...

Page 19: ...4 WIRING DIAGRAMS 19 Concealed Duct Type Wiring Diagram ...

Page 20: ...otor Drain pump motor Float switch Pulse motor valve TA sensor TC1 sensor TC2 sensor TCJ sensor 12 9 328 mm Ø0 16 4mm 39 4 1000mm Ø0 24 6mm 39 4 1000mm Ø0 24 6mm 39 4 1000mm MMD AP Model ICF 340W250 1A PMD 08D12TF 2 FS 1A 31 3 PAM MD12TF 301 12 9 328 mm Ø0 16 4mm 39 4 1000mm Ø0 24 6mm 39 4 1000mm Ø0 24 6mm 39 4 1000mm MMD AP 0076BHPUL ICF 340W150 1A 20 0246BHPUL 0366BHPUL 0426BHPUL 0486BHPUL 0546B...

Page 21: ...ontrols under cool in heating operation 3 Recovers refrigerant oil in cooling operation 4 Recovers refrigerant oil in heating operation Temp Sensor Connector CN104 2P Yellow 1 Detects indoor suction temperature Functional outline 2 TC1 Connector CN100 3P Brown 1 Controls PMV super heat in cooling operation 3 TC2 Connector CN101 2P Black 1 Controls PMV under cool in heating operation Connector CN10...

Page 22: ...issued via the remote controller Remote controller command Control outline STOP Air conditioner shutdown FAN Fan operation COOL Cooling operation DRY Drying operation HEAT Heating operation Ts Temperature setting Ta Room temperature Model type SET DATA Floor standing standard concealed cabinet 0 Other model 2 1 Adjustment range remote controller temperature setting F C 2 In heating operation the t...

Page 23: ...er thermo operation Figures outside applies to body thermo operation Speed modes shown in apply to heating operation under AUTO air conditioner operation mode In AUTO fan speed mode the fan speed remains the same for 1 minute each time a speed change occurs However a speed change command issued via the remote controller can override this and the fan speed changes accordingly At the beginning of he...

Page 24: ...e indoor fan is operated in breeze mode until it moves into zone I The control is terminated under the following conditions Termination conditions TC1 Indoor heat exchanger sensor temperature With models without TC2 TC2 is not part of the control parameters 2 During cooling the air conditioner is operated in the manner described below according to the temperature readings of the TC2 and TCJ sensor...

Page 25: ...every hour The opening position of the indoor PMV depending on the type and capacity of the indoor unit 9 While the outdoor unit is engaged in defrosting control the indoor units perform the following control tasks 1 Open the indoor PMV to a certain degree 2 Control the indoor fan according to the operation mode Indoor units operating in heating thermo ON OFF state Let the indoor fan continue oper...

Page 26: ...il recovery operation Heating standby Displayed on remote controller 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...

Page 27: ...starts The power saving operation cannot be set by the wireless remote controller or wired remote controller of AMT31E or older Frequency fixed operation Test run 19 In case of wired remote controller 1 When pushing CHK button for 4 seconds or more TEST is displayed on the display screen and the mode enters in Test run mode 2 Push ON OFF button 3 Using MODE button set the mode to COOL or HEAT Do n...

Page 28: ...control P C board MCC 1720 DC20V Remote controller communication circuit Display LCD Function setup Key switch CN2 CN1 1 Display LED MCU Display LCD LCD driver CPU Remote controller communication circuit Function setup Key switch Power circuit Power circuit DC280V Fan motor control circuit MCU EEPROM1 EEPROM2 TA sensor TC1 sensor TCJ sensor Float input HA Bus communication circuit AC synchronous s...

Page 29: ...ntrol P C board MCC 1720 DC20V Remote controller communication circuit Power circuit DC280V Fan motor control circuit MCU EEPROM1 EEPROM2 TA sensor TC1 sensor TCJ sensor Float input HA Bus communication circuit AC synchronous signal input circuit Outdoor unit TC2 sensor Power Supply Power Supply U1 U2 Outdoor Unit 1 The schedule timer com be connected to only RBC AMT Display Operation Power supply...

Page 30: ... controller communication circuit Display LCD Function setup Key switch CN2 CN1 1 Display LED MCU Display LCD LCD driver CPU Remote controller communication circuit Function setup Key switch Power circuit Power circuit DC280V Fan motor control circuit MCU EEPROM1 EEPROM2 TA sensor TC1 sensor TCJ sensor Float input HA Bus communication circuit AC synchronous signal input circuit Power circuit Secon...

Page 31: ...lack TC1 Sensor CN100 Brown TCJ Sensor CN102 Red TF Sensor CN103 Green TCJ Sensor CN104 Yellow EEPROM IC503 Ventilation output CN32 White Application control kit CN521 Red HA T10 CN61 Yellow DISP CN72 White CHK CN71 White Indoor Outdoor communication CN40 Blue Remote controller CN41 Blue Option power supply CN309 Yellow Power supply CN67 Black Reactor CN01 Blue CN82 Blue 31 ...

Page 32: ...ion HA answerback signal 2 Defrosting output ON while outdoor unit defrosted 3 Thermostat ON output ON while real thermostat ON compressor ON 5 DC12 V COM 6 Alarm output ON while alarm ON CHK Operation check CN71 1 Check mode input Used for indoor operation check prescribed operational status output such as indoor fan H or drain pump ON to be generated without communication with outdoor unit or re...

Page 33: ... 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 30 pls can be set to the indoor PMV only When open DISP pin the maximum opening degree 1500 pls 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...

Page 34: ...nit Nos under group control is displayed in turn Then the fan and louver of the selected indoor unit move 3 Use the TEMP 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 SET button The display changes from flashing to steady To change the selected indoor unit go back to step 2 To change the...

Page 35: ... 0099 Unfixed 10 Type 0001 4 way Cassette etc refer to 36 page Type CODE No 10 Depending on model type 0F Cooling only 0000 Heat pump 0001 Cooling only No display of AUTO HEAT 0000 Heat pump 0d Existence of AUTO mode 0000 Provided 0001 Not provided Automatic selection from connected outdoor unit 0001 Not provided 04 Specific indoor unit priority 0000 No priority 0001 Priority 0000 No priority 03 C...

Page 36: ...ty Invalid 007 type 009 type 012 type 015 type 018 type 024 type 030 type 036 type 048 type 056 type Value 0004 Type Model Concealed Duct Standard MMD AP BHPUL Indoor Unit Capacity DN code 11 1 Default value stored in EEPROM mounted on service P C board 0016 042 type 36 0010 021 type ...

Page 37: ...tion 3 Error signal Output present while alarm e g serial communication error or operation of protective device for indoor outdoor unit being activated Wiring diagram of control system using remote controller interface TCB IFCB 4UL Input Output IFCB 4UL No voltage ON OFF serial signal No voltage contact in operation and error indication Contact capacity Max AC 240 V 0 5 A 1 2 3 4 5 6 CN61 T10 Yell...

Page 38: ...uccessively 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 31 31 31 31 4 Using the timer time or button select the SET DATA At shipment 0000 0000 0000 0000 0000 The setup data are as follows 5 Push SET button OK if display goes on To change the selected indoor unit go to the procedure 2 To change the item to be set up go to th...

Page 39: ...aken 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 buttons for 4 seconds or more 2 Using the setup temp or button specify the CODE No ...

Page 40: ...ore address setting Pair the indoor unit to set and the remote controller one to one Turn on the power 1 Push and hold the SET CL and buttons at the same time for more than 4 seconds LCD starts flashing Outdoor unit Remote controller Indoor unit 1 Refrigerant line 1 Refrigerant line 2 Indoor unit 2 Indoor unit 3 Outdoor unit Indoor unit 1 Indoor unit 2 1 Line system address 1 1 2 2 1 Indoor unit a...

Page 41: ...an control the unit after SETTING has disappeared NOTE 1 Do not use address numbers 29 or 30 when setting system addresses using the remote controller These 2 address numbers cannot be used on outdoor units and the CODE No E04 Indoor outdoor communication error will appear if they are mistakenly used 2 If you set addresses to indoor units in 2 or more refrigerate lines manually using the remote co...

Page 42: ...R SET TEST FILTER RESET TEMP CL FAN SAVE SWING FIX VENT MODE ON OFF UNIT LOUVER Execute it while the units are running 1 Push the ON OFF button if the units stop 2 Push the UNIT LOUVER button left side of the button A unit numbers 1 1 1 1 1 1 1 1 1 1 is indicated on the LCD it will disappear after a few seconds The indicated number shows the system address and indoor unit address of the unit When ...

Page 43: ...ed 1 Push and hold the VENT and buttons at the same time for more than 4 seconds ALL ALL ALL ALL ALL appears on UNIT No on the LCD display The fans and louvers of all the indoor units in the group are activated 2 Push the UNIT LOUVER button left side of the button Each time you push the button the indoor unit numbers are indicated one after another The first indicated unit number is the address of...

Page 44: ...seconds At first the line 1 and CODE No AC Address Change are indicated on the LCD display Select an outdoor unit 2 Push the UNIT LOUVER button left side of the button and SWING FIX buttons repeatedly to select a system address 3 Push the SET button to confirm the system address selection The address of an indoor unit connected to the selected refrigerant line is indicated on the LCD display and i...

Page 45: ...IT 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 buttons repeatedly ...

Page 46: ...llowing step 2 Execute it while the units are stopped 1 Push and hold the TIME buttons at the same time for more than 4 seconds At first the line 1 and CODE No AC AC AC AC AC Address Change are indicated on the LCD display 2 Push UNIT LOUVER button left side of the button and SWING FIX buttons repeatedly to select a system address 3 Push the SET button The address of one of the indoor units connec...

Page 47: ...nfirm the new address on SET DATA 6 Push the UNIT LOUVER button left side of the button repeatedly to select another address to change Each time you push the button the indoor unit numbers in a refrigerant line are indicated one after another Only the fan and louvers of the selected indoor unit are activated Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique ...

Page 48: ...o FF 3 The display in A of the following figure counts down as follows at 5 second intervals 0005 0005 0005 0005 0005 0004 0004 0004 0004 0004 0003 0003 0003 0003 0003 0002 0002 0002 0002 0002 0001 0001 0001 0001 0001 0000 0000 0000 0000 0000 The error is cleared when 0000 0000 0000 0000 0000 appears However the display counts down from 0005 0005 0005 0005 0005 again 4 Push the to return the displ...

Page 49: ...ntroller indoor unit and outdoor unit 1 Push and hold the and CL for 4 seconds or longer to enter the service monitoring mode The service monitor lights up The temperature of CODE No 00 00 00 00 00 appears at first 2 Push the TEMP button to change to CODE No of the item to monitor Refer to the following table for CODE No 3 Push the left part of the UNIT LOUVER button left side of the buton to chan...

Page 50: ... 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 51: ...or would change speed for no reason 3 Could it just be cooling operation under low outside temperature conditions Could it just be defrosting operation An indoor fan would not stop 4 Could it just be the elimination of residual heat being performed as part of the air conditioner shutdown process after heating operation The air conditioner would not respond to a start stop command from a remote con...

Page 52: ...9 SIM Indoor capacity not set Capacity setting has not been performed for indoor unit L20 SIM SIM Duplicated central control address There is duplication in central control address setting L30 L30 Detected indoor unit No Indoor external error input interlock Unit shutdown has been caused by external error input CN80 P01 ALT Indoor AC fan error Indoor AC fan error is detected activation of fan moto...

Page 53: ...peration C05 C06 C12 P30 Error detected by central control device TCC LINK central control No indication when main remote controller also in use Faulty central control communication transmission Faulty central control communication reception Multiple network adapters Central control device is unable to transmit signal due to duplication of central control device AI NET Central control device is un...

Page 54: ... 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 Dropping out of o...

Page 55: ...cuit 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 L04 L04 SIM ...

Page 56: ...3 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 pressure SW a...

Page 57: ...vated 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 Position det...

Page 58: ...he procedure described below 2 Error history The error history access procedure is described below up to four errors stored in memory Error history can be accessed regardless of whether the air conditioner is in operation or shut down Procedure To be performed when system at rest 1 Invoke the SERVICE CHECK mode by pressing the SET buttons simultaneously and holding for at least 4 seconds The lette...

Page 59: ...bed below up to four errors stored in memory Error history can be accessed regardless of whether the air conditioner is in operation or shut down 1 Push the SET buttons simultaneously and hold for at least 4 seconds 2 The letters SERVICE CHECK light up and the check code 01 is displayed 3 When a group No is selected blinking if there is an error history the UNIT No and the latest error history inf...

Page 60: ... dropping out of outdoor unit E28 Outdoor follower unit error E31 IPDU communication error P01 Indoor AC fan error P10 Indoor overflow error P12 Indoor DC fan error P13 Outdoor liquid backflow detection error P03 Outdoor discharge TD1 temperature error P04 Activation of outdoor high pressure SW P05 Open phase power failure Inverter DC voltage Vdc error MG CTT error P07 Outdoor heat sink overheatin...

Page 61: ...charge 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 TK4 ...

Page 62: ...omatic 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 Other indications not involving check code 62 ...

Page 63: ...ller 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 Check outdoor...

Page 64: ...ic 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 indoor power suppl...

Page 65: ...ts 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 from which sign...

Page 66: ...03 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 connector Check res...

Page 67: ...ard 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 pressure sensor ...

Page 68: ...tivity 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 detection circui...

Page 69: ...f 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 connection of TK3 se...

Page 70: ...k 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 Check code Loc...

Page 71: ...or 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 circuit error All...

Page 72: ...e 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 line address s...

Page 73: ... 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 03 A3 IPDU1 A...

Page 74: ...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 defect in outdoo...

Page 75: ...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 circuited or disco...

Page 76: ...kage 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 Check piping f...

Page 77: ... 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 reduction Che...

Page 78: ...med 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 and actual ro...

Page 79: ... 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 fan IPDU P C...

Page 80: ...fect 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 operation Er...

Page 81: ...Position Black Red Black White Red White Resistance value 14 8 1 5 Ω 14 8 1 5 Ω 14 8 1 5 Ω ICF 340W250 1A Position Black Red Black White Red White Resistance value 12 4 1 2 Ω 12 4 1 2 Ω 12 4 1 2 Ω ICF 340W150 1A MMD AP0156BHPUL AP0186BHPUL Concealed Duct type Fan motor ICF 340W150 2A MMD AP0076BHPUL 81 ICF 340W250 1A MMD AP0216BHPUL AP0246BHPUL AP0306BHPUL AP0366BHPUL AP0426BHPUL AP0486BHPUL AP054...

Page 82: ... 8 1 6 5 5 3 4 4 3 6 3 0 2 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...

Page 83: ...ged from to The CODE No DN may skip EEPROM data read out 1 Refer to page 1 Writing the read out EEPROM data 3 Refer to page 2 Case 2 The EEPROM before replacement is defective and the setting data cannot be read out based on the customer information 3 Refer to page 2 Power reset for all indoor units connected to the remote control when the group operation control is performed MMD AP BHPUL Series M...

Page 84: ...se 1 a Remove temporarily the group wire connected to the terminal blocks A and B of the exchanged indoor units and proceed to b After connecting the remote controller wire only to the removed terminal block turn on power of the 3 3 indoor unit C In case that power of the indoor units cannot be turned in individually a Remove all CN41 connectors of the indoor units in the same group except those o...

Page 85: ...tting data to the EEPROM such as address setting etc Perform the steps 1 and 2 above again Change the CODE No DN to by pressing buttons for the temperature setting this is the setting for the filter sign lighting time The CODE No DN are ranged from to The CODE No DN is not limited to be serial No Even 1 If the setting data is different modify the setting data by pressing buttons for the timer sett...

Page 86: ...peration save function D0 0000 Unavailable 0000 Usual HA terminal 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 shift 06 0001 No automatic Au...

Page 87: ...HPUL AP021 MMD AP0216BHPUL to MMD AP0546BHPUL Rear air intake Air filter Arrow mark Air filter Bottom air intake 1 Detachment 1 Slide the filter toward the opposite side of the arrow mark and then pull out the filter In the case that two filters are provided pull out the first filter then the second filter will be pulled out connected with the first filter 2 Attachment 1 Insert the filter in the f...

Page 88: ...e slit of the electric parts box cover from the projection of the side plate and then remove the cover 2 Attachment 1 Hook the slit of the electric parts box cover to the projection of the side plate close the cover enter screw B in the Key hole and then slide it 2 Fix the electric parts box cover by tightening with screws A and B Electric parts box cover e Projection on the side plate Slit Side p...

Page 89: ... from the bottom side of the main unit 2 Attachment 1 Attach the electric parts box and then perform wiring as original Notes 1 Check there is no missing or contact failure on the connectors Notes 2 Be sure to perform wiring as original 2 Attach air filter suction panel and electric parts box as original Electric parts box f Electric parts box Screw Notch part 1 Detachment 1 Perform work of 1 of f...

Page 90: ...f the shaft 2 Perform screwing the fan motor with the fixing plate Ø5 x 10 2 pcs NOTE Match the fan motor with turning direction of the fan and fix so that the AP007 type and AP005 type fan motor wirings are at refrigerant piping side and AP021 type is at opposite side of refrigerant piping 3 While positioning so that the fan is at the center of the fan case upper fix the fan with hexagonal screw ...

Page 91: ...ain pan j 1 Detachment 1 Perform works until opening of the electric parts box cover in works of 1 of f 2 Remove the connectors which connect to float switch of the drain pump from the control P C board CN34 Float switch 3P Red CN504 Drain pump 2P White 3 Remove the fixing screws 2 positions of the check cover and then take out the check cover To the check cover the drain pump and float switch are...

Page 92: ... x 8 2 pcs of the end plate and then take out the heat exchanger slowly 2 Attachment 1 Set the heat exchanger at the original position and fix it as before using screws which removed the end plate heat exchanger fixed plate and piping cover 2 Enter TC sensor and TCJ sensor wirings in the holder and then perform wirings as original 3 Attach the drain pan and the bottom base as original Heat exchang...

Page 93: ...12 EXPLODED VIEWS AND PARTS LIST 12 1 Concealed duct standard type MMD AP0076BHPUL MMD AP0096BHPUL MMD AP0126BHPUL 240 239 238 241 233 235 244 242 243 213 203 ACCESSORY PARTS 93 ...

Page 94: ...1 1 1 216 43T97311 NUT FLARE 1 4 IN 1 1 1 217 43T47332 BONNET 9 52 DIA 1 1 1 218 43T77301 PUMP ASSY 1 1 1 219 43T51312 SWITCH FLOAT 1 1 1 221 43T80340 AIR FILTER 1 1 1 226 43T19333 HOLDER SENSOR 2 2 2 227 43T82329 RAIL FILTER ASSY 1 1 1 229 43T82323 FILTER STOPPER 1 1 1 232 43T39352 PLATE WIND 2 2 2 233 43T46515 COIL PMV 1 1 1 235 43T46516 BODY PMV 1 1 1 236 43T47386 STRAINER 1 1 1 237 43T19321 FI...

Page 95: ...MMD AP0156BHPUL MMD AP0186BHPUL 238 2 241 233 235 244 242 243 213 203 ACCESSORY PARTS 95 ...

Page 96: ...N 1 1 216 43T97311 NUT FLARE 1 4 IN 1 1 217 43T47333 BONNET 12 70 DIA 1 1 218 43T77301 PUMP ASSY 1 1 219 43T51312 SWITCH FLOAT 1 1 221 43T80340 AIR FILTER 1 1 226 43T19333 HOLDER SENSOR 2 2 227 43T82329 RAIL FILTER ASSY 1 1 229 43T82323 FILTER STOPPER 1 1 232 43T39352 PLATE WIND 2 2 233 43T46515 COIL PMV 1 1 235 43T46517 BODY PMV 1 1 236 43T47386 STRAINER 1 1 237 43T19321 FIX P SENSOR 1 1 238 43T6...

Page 97: ...MMD AP0216BHPUL MMD AP0246BHPUL MMD AP0306BHPUL MMD AP0366BHPUL 238 2 241 233 235 244 242 243 213 203 ACCESSORY PARTS 97 ...

Page 98: ...LARE 3 8 IN 1 1 1 217 43T47334 BONNET 15 88 DIA 1 1 1 218 43T77301 PUMP ASSY 1 1 1 219 43T51312 SWITCH FLOAT 1 1 1 221 43T80340 AIR FILTER 2 2 2 226 43T19333 HOLDER SENSOR 2 2 2 227 43T82331 RAIL FILTER ASSY 1 1 1 229 43T82323 FILTER STOPPER 1 1 1 233 43T46515 COIL PMV 1 1 1 235 43T46513 BODY PMV 1 1 1 236 43T47386 STRAINER 1 1 1 237 43T19321 FIX P SENSOR 1 1 1 238 43T62395 CONDUIT ASSEMBLY 1 1 1 ...

Page 99: ...MMD AP0426BHPUL MMD AP0486BHPUL MMD AP0546BHPUL 238 2 241 233 235 244 242 243 213 203 ACCESSORY PARTS 99 ...

Page 100: ...FLARE 5 8 IN 1 1 1 216 43T97312 NUT FLARE 3 8 IN 1 1 1 217 43T47334 BONNET 15 88 DIA 1 1 1 218 43T77301 PUMP ASSY 1 1 1 219 43T51312 SWITCH FLOAT 1 1 1 221 43T80340 AIR FILTER 2 2 2 226 43T19333 HOLDER SENSOR 2 2 2 227 43T82331 RAIL FILTER ASSY 1 1 1 229 43T82323 FILTER STOPPER 1 1 1 233 43T46416 MOTOR PMV 1 1 1 235 43T46415 VALVE PMV 1 1 1 236 43T47386 STRAINER 1 1 1 237 43T19321 FIX P SENSOR 1 1...

Page 101: ... 1 1 1 1 1 1 1 1 1 408 43T50386 TC SENSOR TCJ 1 1 1 1 1 1 1 1 1 1 1 409 43T63348 CLAMP DOWN 1 1 1 1 1 1 1 1 1 1 1 410 43T63349 CLAMP UP 1 1 1 1 1 1 1 1 1 1 1 411 43T60542 ASM HOUSING BUS 1 1 1 1 1 1 1 1 1 1 1 412 43T60524 ASM HOUSING REM 1 1 1 1 1 1 1 1 1 1 1 413 43T60549 ASM HOUSING PW 1 1 1 1 1 1 1 1 1 1 1 414 43T50389 TA SENSOR 1 1 1 1 1 1 1 1 1 1 1 Location No Part No Description Model name MM...

Page 102: ...144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND ...

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