Fujitsu AB G18LVTB Series Скачать руководство пользователя страница 64

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02-25

Trouble shooting 20

INDOOR UNIT Error Method:

Indoor Unit Fan Motor1 Error

Detective Actuators:

Detective details:

Forecast of Cause:

Check Point 1 : Check rotation of Fan

Check Point 2 : Check ambient temp. around motor

Indoor unit Controller PCB

Indoor unit fan motor

1. Fan rotation failure 2. Fan motor winding open 3. Motor protection by surrounding temperature rise

4. Controller PCB failure 5. Indoor unit fan motor failure

Rotate the fan by hand when operation is off.

(Check if fan is caught, dropped off or locked motor)

>>If Fan or Bearing is abnormal, replace It.

Check excessively high temperature around the motor.

(if there is any surrounding equipment that causes heat)

>>Upon the temperature coming down, restart operation.

When the fan motor speed is less than 1/3 of the target fan speed

for 56 seconds.
When detect the 0 rpm for 56 seconds after fan motor started.

Check Point 4 : Replace Controller PCB

If Check Point 1- 3 do not improve the symptom, replace Controller PCB.

Check Point 3 : Check Indoor unit fan motor

Check Indoor unit fan motor. (PARTS INFORMATION 4)

>>if Indoor unit fan motor is abnormal, replace Indoor unit fan motor.

Outdoor unit :

POWER

MODE

ERROR

(L1)

(L2)

(L6)

(L5)

(L4)

(L3)

PUMP

DOWN

LOW

NOISE

PEAK

CUT

Indicate or Display:

Economy lamp : Continuous flash.

ERROR CODE : [E : 51]

Indoor Unit : Operation lamp: 5 time Flash,

Timer lamp: 1 time Flash

Содержание AB G18LVTB Series

Страница 1: ... AB G18LVTB AB G22LVTA AB G24LVTA AB G30LRTE AB G36LRTE AB G45LRTA AR G18LLTB AR G22LMLA AR G24LMLA AR G30LMLE AR G36LMLE AR G45LMLA AO G72LRLA AO G90LRLA SERVICE INSTRUCTION R410A SPLIT TYPE ROOM AIR CONDITIONER Compact cassette cassette Slim Duct DUCT Floor Ceiling Ceiling type SIMULTANEOUS MULTI ...

Страница 2: ...PREHEATING 01 18 1 15 10 C HEAT OPERATION 01 18 1 16 ECONOMY OPERATION 01 18 1 20 AUTOMATIC AIRFLOW ADJUSTMENT 01 22 1 21 VARIOUS PROTECTIONS 01 23 1 23 DRAIN PUMP OPERATION OPTION 01 28 1 19 COMPOMRESSOR SPEED CONTROL 01 22 1 18 OFF DEFROST OPERATION CONTROL 01 21 1 17 DEFROST OPERATION CONTROL 01 19 1 22 LOW NOISE OPERATION 01 27 1 24 PEAK CUT OPERATION 01 29 1 25 DESCRIPTION OF DISPLAY UNIT 01 ...

Страница 3: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A Compact cassette cassette Slim Duct DUCT Floor Ceiling Ceiling type SIMULTANEOUS MULTI ...

Страница 4: ... Outdoor unit Remote controller Power cable 6 0 mm2 2 wires Junction box Locally purchased Power cable Junction box indoor unit connection cable 1 5 mm2 3 wires Power cable Junction box indoor unit connection cable 1 5 mm2 2 wires Remote controller cable 0 33 mm2 3 wires Bus wire Indoor unit indoor unit connection cable 0 33 mm2 3 wires Main breaker 30 A Power supply 400 V 50 Hz Indoor unit Second...

Страница 5: ...ction after the Cooling or Heating mode was selected at above operation is switched to Monitoring and the operation mode is selected again When the middle zone is selected on the predetermining of the operation mode the operation mode before the changing to the monitor mode is selected 1 2 3 1 Fig 1 Outdoor temperature zone selection Cooling Operation mode Temperature 25 C and over 25 C under Heat...

Страница 6: ... or longer System stops or operation command other than auto changeover operation NO Thermostat remains in OFF state for 6 minutes or longer System stops or operation command other than auto changeover operation Middle zone NO NO Operation mode of outdoor unit Cooling YES NO Operation mode of outdoor unit Heating YES NO YES Outdoor temperature 25 C NO YES YES YES NO YES YES Operation mode before t...

Страница 7: ...oft Quiet S Lo 570 530 510 470 420 300 570 510 470 420 300 420 270 AU G30LRLE Operation mode Air flow mode Speed rpm Cooling Fan Heating Dry Hi Me Me Lo Quiet Cool air prevention Hi Me Lo Quiet Soft Quiet S Lo Operation mode Air flow mode Speed rpm Cooling Fan Heating Dry Hi Me Me Lo Quiet Cool air prevention Hi Me Lo Quiet Soft Quiet Auto S Lo 830 700 600 550 830 700 600 550 350 550 350 AR G22 24...

Страница 8: ...et Cool air prevention Hi Me Lo Quiet Soft Quiet Auto S Lo 1000 1000 910 750 650 500 1000 910 750 650 500 650 250 AB G30LRTE Operation mode Air flow mode Speed rpm Cooling Fan Heating Dry Hi Me Me Lo Quiet Cool air prevention Hi Me Lo Quiet Soft Quiet Auto S Lo 1100 1100 910 750 650 500 1100 910 750 650 500 650 250 AB G36LRTE Operation mode Air flow mode Speed rpm Cooling Fan Heating Dry Hi Me Me ...

Страница 9: ...e room temperature drops Tr Room temperature Ts Setting temperature Tr Ts 2 C 1 C Tr Ts 2 C Tr Ts 1 C Tr Ts 2 5 C 1 5 C Tr Ts 2 5 C Tr Ts 1 5 C High Med Low 4 HEATING OPERATION Auto Heating Switch the airflow AUTO and the indoor fan motor will run according to a room temperature as shown in Figure 3 On the other hand if switched in High Quiet the indoor motor will run at a constant airflow of Heat...

Страница 10: ...emperature rises Indoor heat exchanger temperature drops Cool air prevention S Lo S Lo 42 C 30 C 34 C Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops Hi Me or setting fan mode Lo or setting fan mode Lo or setting fan mode Lo or setting fan mode 39 C 37 C 37 C 32 C 24 C Lower speed is selected 42 C 30 C 34 C Indoor heat exchanger temperature rises Indoor heat exchang...

Страница 11: ... 450 440 380 300 rpm 680 660 510 400 330 300 rpm 740 680 660 510 400 330 300 rpm Cooling Heating Upper fan Lower fan AO G72LRLA 780 730 660 590 520 450 440 380 300 rpm 780 730 660 590 520 450 440 380 300 rpm 740 690 660 510 400 330 300 rpm 740 690 660 510 400 330 300 rpm Upper fan Lower fan AO G90LRLA After operating the defrost control function on heating mode except economy operation its speed b...

Страница 12: ...Y CONTROL AT START UP The compressor frequency soon after the start up is controlled as shown in Fig 5 Fig 5 Compressor Control at Start up 50 60 60 70 120 180 rps Upper limit speed sec Elapsed time 40 720 50 60 840 960 70 80 rps Upper limit speed sec 1200 1080 Elapsed time 40 60 50 60 120 180 rps Upper limit speed sec Elapsed time Ta Outdoor temperature Normal start up Immediate start up after po...

Страница 13: ... the memorized position Stop mode means Operation stop During Cooling Heating Dry Fan mode During Auto mode operation for the first minute after the start up air flow will be horizontal the air direction cannot be adjusted during this period The type of operation Cooling Dry Range of swing to Heating to Fan to to to Fan to 1 For Ceiling type AB G18LVTB AB G22 24LVTA 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2...

Страница 14: ...e range of swing depends on the set airflow direction When the indoor fan is either at S Low or Stop mode the swinging operation is interrupted and the louver stops at the memorized position Stop mode means Operation stop The type of operation Cooling Heating Dry Fan Range of swing RIGHT LEFT air direction louvers Use the air direction adjustments within the ranges shown above The remote control u...

Страница 15: ... the louver stops at the memorized position Stop mode means Operation stop During Cooling Heating Dry Fan mode During Auto mode operation for the first minute after start up air flow will be horizontal the air direction cannot be adjusted during this period The type of operation Cooling Dry Range of swing to Heating to 2 For Ceiling Type AB G30LRTE 36 45LRTE 1 2 3 4 5 1 2 3 4 5 5 1 1 1 5 4 3 to 5 ...

Страница 16: ...ver starts to swing The range of swing depends on the set airflow direction When the indoor fan is either at S Low or Stop mode the swinging operation is interrupted and the louver stops at the memorized position Stop mode means Operation stop The type of operation Cooling Heating Dry Fan Range of swing to Use the air direction adjustments within the ranges shown above The remote control unit s di...

Страница 17: ... the remote controller the vertical louver starts to swing The range of swing depends on the set airflow direction When the indoor fan is either at S Low or Stop mode the swinging operation is interrupted and the louver stops at the memorized position Stop mode means Operation stop During Auto mode operation for the first minute after start up air flow will be horizontal the air direction cannot b...

Страница 18: ...mote controller the vertical louver starts to swing The range of swing depends on the set airflow direction When the indoor fan is either at S Low or Stop mode the swinging operation is interrupted and the louver stops at the memorized position Stop mode means Operation stop During Auto mode operation for the first minute after start up air flow will be horizontal the air direction cannot be adjus...

Страница 19: ...eration is canceled but only setting time is memorized Operation contents memorized when the power is interrupted Operation mode Set temperature Set air flow Timer mode and timer time set by wireless remote controller 10 C HEAT set by wireless remote controller ECONOMY Fan saving setting Each central setting 1 10 PREVENT TO RESTART FOR 3 MINUTES 3 MINUTES ST 1 11 4 WAY VALVE EXTENSION SELECT 1 12 ...

Страница 20: ...lights on as shown in the above ﬁgure and the fans and the compressor start operating If the PUMP DOWN button is pressed while the compressor is operating the compressor will stop then start again in about 3 minutes 4 LED display will change as shown below about 3 minutes after the compressor starts Fully close the 3 way valve on the liquid pipe side at this stage POWER MODE ERROR PUMP DOWN LOW NO...

Страница 21: ...HEAT operation The 10 C HEAT The 10 C HEAT operation can be set by the wireless remote controller functions by pressing 10 HEAT button on the remote controller operation is almost the same operation as below settings Mode Heating Setting temperature 10 C Fan mode AUTO Table 5 1 16 ECONOMY OPERATION The ECONOMY operation functions by pressing ECONOMY button on the remote controller The ECONOMY oper...

Страница 22: ...nd9 From 2nd and later defrost after starting operation Less than 35 minutes More than 35 minutes Does not operate Compressor integrating operation time Table 7 Condition of 1st defrost operation 1st defrost after starting operation Compressor integrating operation time Less than 22 minutes More than 22 minutes More than 62 minutes Does not operate Outdoor heat exchanger temp Below 9 C Outdoor hea...

Страница 23: ...on Over 22 minutes Compressor integrating operation Over 62 minutes Outdoor heat exchanger temp Below 9 C Outdoor heat exchanger temp Below 5 C Compressor integrating operation Over 35 minutes 2nd and later defrost Compressor OFF Outdoor fan motor OFF 30 sec later 4 way valve OFF 36 sec later compressor ON Compressor integrating operation Over 240 minutes Integrating defrost Constant monitoring De...

Страница 24: ...e than 30 minutes OFF Defrost Flow Chart Heating operation stop Outdoor heat exchanger temp Below 4 C and Compressor integrating operation Over 30 minutes Defrost start Defrost Indicator Operation lamp 6 sec ON 2 sec OFF or Compressor ON time Maximum 15 minutes Defrost end 2 OFF DEFROST RELEASE CONDITION Release Condition or Compressor operation time has passed 15 minute s Table 11 OFF Defrost Rel...

Страница 25: ... Do not change the throttles of the inlet and outlet ports during operation When used in a Group control system the setting will take about 10 min When the Error code 15 4 Automatic Air flow Adjustment Error appears the setting is not completed Refer to the Trouble shooting Error code15 4 Turn the air conditioner off and on again 5 Check the setting value of Function 26 and take note of the settin...

Страница 26: ...wer than Temperature the control of the compressor frequency is released When the discharge temperature becomes higher than Temperature the compressor is stopped and the indoor unit LED starts blinking Table13 Discharge Temperature Over Rise Prevention Control Release Temperature Temperature Temperature Temperature 01 23 The compressor frequency is controlled so that the outdoor unit input current...

Страница 27: ...25 C 13 C Ta 19 C 0 C Ta 7 C 5 C Ta 0 C 10 C Ta 5 C 15 C Ta 10 C 7 C Ta 13 C 01 24 Heating Ta Outdoor Temperature Control Release 43 C Ta 46 C 25 C Ta 31 C 680 680rpm 780 740rpm 780 740rpm 730 690rpm 680 680rpm 680 680rpm 660 660rpm 660 660rpm 590 510rpm 590 510rpm 520 400rpm 520 400rpm 440 330rpm 380 300rpm 450 0rpm 300 0rpm 300 300rpm 440 330rpm 380 300rpm 450 0rpm 300 0rpm 300 300rpm 24 AO G72L...

Страница 28: ...es 2 When the temperature drops 4 C 7 C 13 C Temperature Temperature 4 HIGH PRESSURE OVER RISE PROTECTION The compressor frequency is controlled as following based on the detection value of the high pressure sensor Fig 13 High Pressure Over Rise Protection Control High Pressure 4 1MPaG 4 0MPaG 3 8MPaG Compressor is OFF The compressor frequency is decreased 5 rps every 120 seconds Stable range Rele...

Страница 29: ... 68MPaG or less continues for 1 minute the compressor speed 3 rps b When the low pressure value becomes 0 68MPaG or less after the protection a the compressor continues speed 3 rps every 1 minute until the detected value becomes more than 0 68MPaG c When the low pressure value becomes more than 0 78MPaG this protection is released 0 05MPaG 0 02MPaG Release of protection Hold Compressor stop Pressu...

Страница 30: ... Level 2 setting Shortage Enough eed are limited to reduce the operation noise by External Input During the LOW NOISE OPERATION CURRENT OVERLOAD OPERATION ECONOMY OPERATION and PEAK CUT OPERATION are effective and the outdoor unit operates by lowest current of them However during the DEFROST OPERATION the compressor operates by the speed for DEFROST OPERATION Table 15 Detail of Low Noise Operation...

Страница 31: ...F less than 3 minutes the unit starts Cooling operation 1 2 1 When the water level in the drain pan rises up and then the float switch functions Drain pump operates continuously for 3 minutes after the float switch is turned off Almost condensing water may be drained 2 When the float switch turns ON continuously for 3 minutes FAILURE INDICATION operates Thereafter even if the float switch turns OF...

Страница 32: ... reduce the power consumption by External Input During the PEAK CUT OPERATION CURRENT OVERLOAD OPERATION ECONOMY OPERATION and LOW NOISE OPERATION are effective and the outdoor unit operates by lowest current of them However this function becomes invalid during DEFROST OPERATION PEAK CUT LEVEL Peak Cut For Rated Capacity Percentage is rated electrical power ratio ...

Страница 33: ...nge Lights on during Peak cut mode when local setting is activated Lighting pattern of L4 L5 and L6 indicates peak cut level LED DISPLAY Various settings can be adjusted by changing Push switches on the board of the outdoor unit Excerpt from the INSTALATION MANUAL Switch Function or operation method SW107 SW108 SW109 SW112 SW110 To switch between Local setting and Error code display To switch betw...

Страница 34: ... 4 During status display press the MODE SWITCH 1 time Status display Outdoor unit is stopping and no error When the EXIT SWITCH is pressed this mode ends and returns to the status display Selecting display items can be done by pressing the SELECT SWITCH Return to Procedure 3 Press the ENTER SWITCH Data is displayed by lighting LED Refer to Table 19 When the POWER MODE LED blinking 1 time press the...

Страница 35: ...sure sensor value Low pressure range 0 2 1MPa Pressure sensor value High pressure range 2 1 4 2MPa Check the Low Pressure Range if it is displayed 2 1 Check the High Pressure Range if it is displayed 1 81 2 1 0 1 15 16 30 31 45 46 60 61 75 76 90 90 95 0 1 150 151 300 301 450 451 600 601 750 751 900 901 0 1 150 151 300 301 450 451 600 601 750 751 900 901 0 1 80 81 160 161 240 241 320 321 400 401 48...

Страница 36: ...scharge Temperature 30 120 C Heat exchanger Temperature Middle 30 80 C Current 0 10A Compressor Accumulated Time H 15 15 5 5 5 5 15 15 25 25 35 35 45 45 55 55 65 65 75 75 85 85 95 95 105 105 115 115 53 53 55 55 57 57 59 59 61 61 63 63 65 65 0 0 0 0 1 5 1 5 3 0 3 0 4 5 4 5 6 0 6 0 7 5 7 5 9 0 9 0 0 0 10000 10000 20000 20000 30000 30000 40000 40000 50000 50000 60000 60000 7 8 9 01 33 Round up by 1 h...

Страница 37: ... SELECT SWITCH Return to Procedure 3 Press the ENTER SWITCH Error code is displayed by lighting LED Refer to Table 22 When the POWER MODE LED blinking 2 times press the ENTER SWITCH Light ON Light OFF Blinking 2 2 Times Blinking n n Times Blinking 1 25 3 Error history mode Error L1 L2 L6 L5 L4 L3 2 2 2 2 2 5 Press the SELECT SWITCH and adjust to DISPLAY ITEM from L1 to L3 that you want to confirm ...

Страница 38: ...CH 1 time When reset of the ERROR history and then long press the MODE SWITCH Error code is displayed by lighting LED Refer to Table 21 Light ON Light OFF 2 2 Times Blinking n n Times Blinking Error L1 L2 L6 L5 L4 L3 2 n Blinking Hi speed n DATA 2 2 2 2 2 2 2 2 After the error reset all LED is blinking and erased the all error history After this ERROR LED is off and will normal display 1 1 15 Time...

Страница 39: ...2 TROUBLE SHOOTING R410A Compact cassette cassette Slim Duct DUCT Floor Ceiling Ceiling type SIMULTANEOUS MULTI ...

Страница 40: ...es 1 times Continuous 4 times 2 times Continuous 5 times 1 times Continuous 5 times 3 times Continuous 5 times 15 times Continuous 6 times 2 times Continuous 6 times 3 times Continuous 6 times 5 times Continuous 7 times 1 times 8 times Continuous 2 times 1 times 18 External Communication Error Indoor Room Thermistor Error Combination Error Indoor Unit Address Setting Error Connection Unit Number E...

Страница 41: ...s 9 times 10 times 1 times 10 times 3 times 10 times 5 times 4 times 7 times 7 times 72 73 74 77 84 86 94 95 97 98 99 A1 A3 Over Current Error Outdoor Thermistor Error Transistor PCB Error Current Sensor Error Pressure Switch Error Heat Ex Outlet Thermistor Error Compressor Thermistor Error Compressor Control Error Outdoor Unit Fan Motor 1 Error Outdoor Unit Fan Motor 2 Error 4 way Valve Error Dis...

Страница 42: ...r codes may be displayed for the indoor unit connected to the remote controller 1 Stop the air conditioner operation 2 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more to start the self diagnosis 4 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more or there is no key input for 60 seconds to stop the display 3 Press the SET TEMPERATURE button to select the ...

Страница 43: ...nication error Er 15 4 EE 1d Incompatible indoor unit is connected Indoor unit date acquisition error Primary unit Secondary unit setting error Er CC 1 EE CC 1 Remote controller sensor error When there is an error on the indoor unit Code Er 41 1 R C address 00 Error Mo 10 00 Monitor Code XXXXXX R C address 00 Error Mo 10 00 Monitor Error code Address number of the relevant indoor unit The Error co...

Страница 44: ... display part Display when an error occurs POWER MODE ERROR PUMP DOWN LOW NOISE PEAK CUT L1 L2 L3 L4 L5 L6 Blink Hi speed Sign Lights off Lights on Check that the ERROR LED blinks then press the ENTER button once 1 For details refer to the following table 2 02 05 Combination error Indoor unit combination error TRABLU SHOOTING 2 8 9 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Cap...

Страница 45: ...ntrol unit If there is loose connector open cable or mis wiring Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC198V AC220V 10 264V AC240V 10 appears at outdoor unit terminal L3 N When the indoor unit cannot receive the serial signal from Outdoor unit more than 2minutes after power ON or the indoor unit cannot receive the serial signal more than 15secon...

Страница 46: ...ct it by referring to Installation Manual or Data Technical Manual Check connection condition in control unit If there is loose connector open cable or mis wiring Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC198V AC220V 10 264V AC240V 10 appears at outdoor unit terminal L3 N Check Point 4 Check serial signal Forward transfer signal Check serial signa...

Страница 47: ... Controller and indoor unit and check if there is a disconnection of the cable When the indoor unit cannot properly receive the signal from Wired Remote Controller for 1 minute or more If it is DC13V Remote Control is failure Controller PCB is normal Replace Remote Control If it is DC 0V Controller PCB is failure Check Remote Control once again Replace Controller PCB Ceck Voltage at CN14 of Contro...

Страница 48: ...ration On automatic airflow adjustment operation when the fan speed other than 0rpm is detected at the 0rpm operation On automatic airflow adjustment operation when the fan speed is not reach the target speed after 2 minutes from the fan started On automatic airflow adjustment operation operation when the 72 750W 90 1000W of input power is detected Check Point 4 Replace Controller PCB If Check Poi...

Страница 49: ...or mis wiring the same a signal has not been received for 15sec After receiving a signal from the external I O PCB 1 Connection failure 2 External I O PCB Wi fi adapter failure 3 Controller PCB failure Check Point 1 Check the connection Check Point 2 Replace external I O PCB Wi fi adapter If Check Point 1 do not improve the symptom change External I O PCB and Wi fi adapter OK OK Check Point 3 Repl...

Страница 50: ...rrect setting reset the power 1 Dip SW incorrect setting 2 Controller PCB failure Check Point 1 Check the DIP SW of Controller PCB setting When the addresses set in indoor units are not consecutive in the same refrigerant circuit 02 11 Check Point 2 Replace Controller PCB If Check Point 1 do not improve the symptom replace Controller PCB Outdoor unit POWER MODE ERROR 2 5 L1 L2 L6 L5 L4 L3 15 PUMP ...

Страница 51: ...ailure Check Point 1 Check the total capacity of indoor unit Check the total capacity of the connected indoor units If abnormal condition is found correct it by referring to Installation Manual or Data Technical Manual Check Point 2 Replace Main PCB If Check Point 1 do not improve the symptom replace Main PCB Outdoor unit POWER MODE ERROR 2 2 L1 L2 L6 L5 L4 L3 2 PUMP DOWN LOW NOISE PEAK CUT Indica...

Страница 52: ... the type of indoor unit Check the type of the connected indoor unit If abnormal condition is found correct it Check Point 2 Replace Main PCB If Check Point 1 do not improve the symptom replace Main PCB of Outdoor unit 02 13 Outdoor unit POWER MODE ERROR 2 2 L1 L2 L6 L5 L4 L3 3 PUMP DOWN LOW NOISE PEAK CUT Indicate or Display Economy lamp Continuous flash ERROR CODE E 23 Indoor Unit Operation lamp...

Страница 53: ...stallation Manual or Data Technical Manual Upon correcting incorrect setting reset the power 1 Indoor unit connection failure Check Point 1 Check the indoor unit number connection When there are 4 or more indoor units in the same refrigerant system 02 14 Outdoor unit POWER MODE ERROR 2 5 L1 L2 L6 L5 L4 L3 15 PUMP DOWN LOW NOISE PEAK CUT Indicate or Display Economy lamp Continuous flash ERROR CODE ...

Страница 54: ...o the installation manual Change controller PCB and check the Error after setting remote controller address Check if controller PCB damage Check Point 2 Wrong RCgroup setting The given address number by auto setting 00 and the manual set number Except 00 were not existing in one RCG The remote controller address setting by U I were not existing same address The duplicated address number is not exi...

Страница 55: ...unit in the same refrigerant system When 2 or more master units are connected in the same reffigerant system When slave indoor unit receives serial reverse transfer signal When address 0 indoor unit is set as slave unit 02 16 Check Point 3 Replace Controller PCB If Check Point 1 2 do not improve the symptom replace Controller PCB Check the DIP SW of controller setting If there is an abnormal condi...

Страница 56: ...ng wiring Number of I U RC in RCgroup 2 Indoor unit controller PCB defective Check Point 1 Wire installation Wrong number of connecting indoor unit Check Point 2 Check Indoor unit controller PCB Check if controller PCB damage Check if controller PCB and check the Error after setting remote controller address Outdoor unit POWER MODE ERROR 2 5 L1 L2 L6 L5 L4 L3 15 PUMP DOWN LOW NOISE PEAK CUT Indica...

Страница 57: ... wave Note EEPROM EEPROM Electronically Erasable and Programmable Read Only Memory is a non volatile memory which keeps memorized information even if power is turned off It can change the contents electronically To change the contents it uses higher voltage than normal and it can not change a partial contents Rewriting shall be done upon erasing the all contents There is a limit in a number of rew...

Страница 58: ... dropped off or locked motor If Fan or Bearing is abnormal replace It Check excessively high temperature around the motor if there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Check Point 4 Replace Power Supply PCB If Check Point 1 3 do not improve the symptom replace Main PCB Check Point 3 Check Indoor unit fan motor Check Indoor unit fan motor ...

Страница 59: ...ck Point 1 Check the Manual auto switch Check if Manual auto switch is kept pressed Check ON OFF switching operation by using a meter If Manual auto switch is disabled on off switching replace it Check Point 2 Replace Controller PCB and Indicator PCB If Check Point 1 do not improve the symptom replace Controller PCB and Indicator PCB Outdoor unit POWER MODE ERROR 2 5 L1 L2 L6 L5 L4 L3 15 PUMP DOWN...

Страница 60: ...pen Upon correcting the removed connector or mis wiring reset the power Check Point 1 Check external cause at lndoor and Outdoor Voltage drop or Noise Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave ...

Страница 61: ...CB defective Check Point 1 Check the connection of terminal Indoor unit Check the connection the communication PCB and the controller PCB After turning off the power supply check correct the followings If the Check point 1 is ok replace the communication PCB 02 22 Check Point 3 Replace the controller PCB If condition is doesn t change replace the controller PCB Outdoor unit POWER MODE ERROR 2 5 L1...

Страница 62: ...o removed connector or incorrect wiring 6 5 8 0 10 0 12 5 15 8 20 2 25 9 33 6 3 6 4 4 5 3 Resistance value k OK OK Check Point 3 Check Voltage of Controller PCB DC 5 0V Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Controller PCB and execute the check operation again DC Trouble shooting 18 INDOOR UNIT Error Meth...

Страница 63: ...lue k Temperature C Temperature C 0 40 45 50 5 10 15 20 25 30 35 Resistance value k Check Point 2 Remove connector and check Thermistor resistance value Thermistor Characteristics Rough value If Thermistor is either open or shorted replace it and reset the power OK OK Check Point 3 Check voltage of Controller PCB DC5 0V Make sure circuit diagram of each indoor unit and check terminal voltage at Th...

Страница 64: ...ck excessively high temperature around the motor if there is any surrounding equipment that causes heat Upon the temperature coming down restart operation When the fan motor speed is less than 1 3 of the target fan speed for 56 seconds When detect the 0 rpm for 56 seconds after fan motor started Check Point 4 Replace Controller PCB If Check Point 1 3 do not improve the symptom replace Controller P...

Страница 65: ... wire 3 Controller PCB failure 4 Drain pump failure 5 Hose clogging Check Point 2 Check Connector and Wire Check loose contact of CN9 and shorted wire pinched wire Replace Float switch if the wire is abnormal Check Point 4 Check Controller PCB If Check Point 1 3 do not improve the symptom change Controller PCB and execute the check operation again OK OK Check Point 3 Check Drain Hose Check Drain H...

Страница 66: ...dication show again Check Point 1 2 Check external cause Check if temporary voltage drop was not generated Check if momentary open was not generated Check if ground is connection correctly or there are no related cables near the power line Change Main PCB Access to EEPROM failed due to some cause after outdoor unit started 02 27 Outdoor unit POWER MODE ERROR 2 6 L1 L2 L6 L5 L4 L3 2 PUMP DOWN LOW N...

Страница 67: ... Point 2 Check the wiring Power supply to Filter PCB to Transistor PCB Connector and wiring connection state check Cable open check Replace Transistor PCB Check Point 1 1 Turn the power on again Error displayed again Check Point 3 Transistor PCB 02 28 Trouble shooting 23 Detective Actuators Detective details OUTDOOR UNIT Error Method Forecast of Cause POWER MODE ERROR L1 L2 L6 L5 L4 L3 PUMP DOWN L...

Страница 68: ...symptom change Main PCB When more than normal operating current to IPM in Transistor PCB flows the compressor stops 02 29 Trouble shooting 24 OUTDOOR UNIT Error Method IPM Error Outdoor unit POWER MODE ERROR 2 6 L1 L2 L6 L5 L4 L3 5 PUMP DOWN LOW NOISE PEAK CUT OK OK Check Point 5 Check Transistor PCB Check Transistor PCB If Transistor PCB is abnormal replace it Indicate or Display Economy lamp Con...

Страница 69: ...the thermistor from the PCB and check For the thermistor characteristics refer to the Service Parts Information 8 Check Point 3 Check voltage of Main PCB DC5 0V Main PCB CN146 1 2 voltage value 5V ain PCB Remove the thermistor from Main PCB check the voltage If the voltage do not appear replace Main PCB and execute the check operation again Discharge temperature thermistor CN146 1 2 02 30 Trouble ...

Страница 70: ...e Service Parts Information 8 Check Point 3 Check voltage of Main PCB DC5 0V Main PCB CN146 3 4 voltage value 5V Remove the thermistor from Main PCB check the voltage Compressor temperature thermistor CN146 3 4 If the voltage do not appear replace Main PCB and execute the check operation again 02 31 Trouble shooting 26 Detective Actuators Detective details OUTDOOR UNIT Error Method Forecast of Cau...

Страница 71: ...ristics refer to the Service Parts Information 8 Check Point 3 Check voltage of Main PCB DC5 0V Main PCB CN147 1 2 voltage value 5V Remove the thermistor from Main PCB check the voltage Heat exchanger outlet temperature thermistor CN147 1 2 If the voltage do not appear replace Main PCB and execute the check operation again If the voltage do not appear 02 32 Heat Ex Outlet Temp Thermistor Error Tro...

Страница 72: ...stor characteristics refer to the Service Parts Information 8 Check Point 3 Check voltage of Main PCB DC5 0V Main PCB CN144 1 3 voltage value 5V Remove the thermistor from Main PCB check the voltage Outdoor temperature thermistor CN144 1 3 If the voltage do not appear replace Main PCB and execute the check operation again If the voltage do not appear replace Main PCB 02 33 Trouble shooting 28 Dete...

Страница 73: ...W NOISE PEAK CUT Transistor PCB When it s E 77 it s TRANSISTER PCB exchange Transistor PCB Detective Actuators Detective details Forecast of Cause Indicate or Display Economy lamp Continuous flash ERROR CODE E 77 Indoor Unit Operation lamp 7 time Flash Timer lamp 7 time Flash Check Point 1 Transistor PCB Replacement of transistor PCB ...

Страница 74: ... circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check Point 1 1 Reset Power Supply and operate Does Error indication show again When Input Current Sen...

Страница 75: ...k Check Point 2 Check the high pressure switch characteristics Switch characteristics check For the characteristics of high pressure switch refer to below Check Point 3 Replace Main PCB Change Main PCB and execute the check operation again 02 36 Pressure Switch Error Type of contact Characteristics of pressure switch C H Pressure Pressure switch 3 2 0 15MPa Contact Short Open Contact Open Short CN...

Страница 76: ...nverter compressor failure lock winding short 4 Transistor PCB IPM failure Protection stop by overcurrent generation after inverter compressor start processing completed generated consecutively 10 times The number of generations is reset if the start up of the compressor succeeds No obstructions in air passages Heat exchange fins clogged Outdoor unit fan motor check Ambient temperature not raised ...

Страница 77: ...on is out of phase with actual rotor location more than 90 the compressor stops After the compressor restarts if the same operation is repeated within 40sec the compressor stops again If and repeats 5 times the compressor stops permanently Check Point 1 Check Noise from Compressor Turn on Power and check operation noise If an abnormal noise show replace Compressor Check Point 4 Replace Compressor ...

Страница 78: ...e at Main PCB side connector If the voltage is not correct replace Main PCB When outdoor fan rotation speed is less than 100rpm in 20 seconds after fan motor starts fan motor stops After fan motor restarts if the same operation within 60sec is repeated 3 times in a row compressor and fan motor stops If and repeats 5 times in a row compressor and fan motor stops permanently Read wire DC voltage Red...

Страница 79: ...e at Main PCB side connector If the voltage is not correct replace Main PCB When outdoor fan rotation speed is less than 100rpm in 20 seconds after fan motor starts fan motor stops After fan motor restarts if the same operation within 60sec is repeated 3 times in a row compressor and fan motor stops If and repeats 5 times in a row compressor and fan motor stops permanently Read wire DC voltage Red...

Страница 80: ... Point 1 3 do not improve the symptom replace Controller PCB Check Point 2 Check thermistor of Indoor unit Isn t it fallen off the holder Is there a cable pinched Check characteristics of thermistor Refer to Trouble shooting 18 19 If defective replace the thermistor Indoor Unit Controller PCB Circuit Heat Exchanger Temperature Thermistor Room Temperature Thermistor 4 way valve When the indoor heat...

Страница 81: ...r Check for foreign object at heat exchanger Check if fan can be rotated by hand Motor check PARTS INFORMATION 5 Check Point 2 Check the EEV strainer Check Point 5 Check the refrigerant amount Leak check EEV open Strainer clogging check before and after EEV ACM oil return Refer to Service Parts Information 3 Check Point 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way...

Страница 82: ...as side is open EEV open Strainer clogging check before and after EEV ACM oil return Refer to Service Parts Information 3 Check Point 2 Check the EEV strainer EEV open Strainer clogging check before and after EEV ACM oil return Refer to Service Parts Information 3 Check Point 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation Check Poi...

Страница 83: ... Detective Actuators Detective details Forecast of Cause EEV operation check Strainer not clogged Refer to PARTS INFORMATION 3 Check Point 4 Check the EEV strainer clogging EEV operation check Strainer not clogged Refer to PARTS INFORMATION 3 Check Point 2 Check the EEV strainer clogging Check Point 2 Check the outdoor unit ambient temperature Outdoor ambient temperature lower than operating range...

Страница 84: ...nsor defective 3 Main PCB defective Check Point 1 Check the discharge pressure sensor connection state Connector connection state check Cable open check Check Point 2 Check the discharge pressure sensor Sensor characteristics check For the characteristics of the discharge pressure sensor refer to the Service Parts Information 9 Main PCB CN118 1 3 voltage value 5V Remove the sensor from Main PCB ch...

Страница 85: ...re sensor connector disconnection open 2 Suction pressure sensor defective 3 Main PCB defective Check Point 1 Check the suction pressure sensor connection state Connector connection state check Cable open check Check Point 2 Check the suction pressure sensor Sensor characteristics check For the characteristics of the suction pressure sensor refer to the Service Parts Information 9 Suction pressure...

Страница 86: ...fective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding 02 47 2 3 TROUBLE SHOOTING WITH NO ERROR CODE Check Point 3 Check Electrical Components YES YES OK NO Check the voltage of power supply Check if AC198 264V a...

Страница 87: ...k if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check the voltage of power supply Check if AC...

Страница 88: ... Power and check correct followings Is there loose or removed communication line of Indoor Unit and Outdoor Unit Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electr...

Страница 89: ...ts that obstruct the air flow route Check clogged Heat Exchanger Is the Valve open Is capacity of Indoor Unit fitted to Room size Any windows open Or direct sunlight Check connection pipe specified pipe length Pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check if Strainer is clo...

Страница 90: ...on grille and front panel normal Is Fan broken or deformed Is the screw of Fan loose Is there any object which obstruct the Fan rotation Is Main Unit installed in stable condition Is Fan Guard installed normally Check if vibration noise by loose bolt or contact noise of piping is happening Is Compressor locked Check Compressor PARTS INFORMATION 1 2 Water Leaking 1 Erroneous installation 2 Drain ho...

Страница 91: ... compressor due to clogged dirt or less oil Replace Compressor Replace Compressor Replace Compressor Stops soon after starting up Is there open or loose connection cable Is Gas Pipe Valve open Low Pressure is too low Check if Refrigerant is leaking Recharge Refrigerant Check if Strainer is clogged PARTS INFORMATION 3 If there is no failure the defect of Compressor can be considered Compression par...

Страница 92: ...nce value is 0 or infinite replace Compressor If the symptom does not change with above Check 1 2 replace Transistor PCB 02 53 Resistance Value 0 526 at 20 C 72 90 Check Point 1 Check Connection Check terminal connection of Compressor loose or incorrect wiring V WHITE W BLACK Transistor PCB TM303 W TM304 V TM305 U RED WHITE BLACK Compressor TransistorPCB U V W U RED W BLACK W V U ...

Страница 93: ...onnector Loose connector or open cable Remove connector check each winding resistance of Coil If Resistance value is abnormal replace EEV Remove Connector and check Voltage DC12V If it does not appear replace Main PCB Turn on Power and check operation noise If an abnormal noise does not show replace Main PCB When Valve is closed it has a temp difference between Inlet and Outlet If it is open it ha...

Страница 94: ...voltage Vcc Speed command Vsp 6 Yellow Feed back FG SERVICE PARTS INFORMATION 4 Check Point 1 Check rotation of Fan Indoor unit fan motor Rotate the fan by hand when operation is off Check if fan is caught dropped off or locked motor If Fan or Bearing is abnormal replace it 02 55 Check Point 2 Check resistance of Indoor Fan Motor Check resistance when the main power supply is OFF 1 Winding coil re...

Страница 95: ...tester to the Resistance mode and measure the resistance between the following terminals Set the tester to the Diode mode and measure the voltage value between the following terminals Judge the result of as follows Judge the result of as follows P P P U V W N N N U V W U V W P P P U V W N N N Over 2k Including Over 2k Including Over 20k Including Terminal Tester display Tester Tester P P P U V W N...

Страница 96: ...k Thermistor A Thermistor B Thermistor C 20 10 5 0 5 10 15 20 25 30 40 50 60 70 80 90 100 110 120 168 6 129 8 100 9 79 1 62 6 49 8 40 0 26 3 17 8 12 3 8 7 6 3 4 6 3 4 2 6 2 0 27 8 21 0 16 1 12 4 9 6 7 6 6 0 4 8 3 8 2 5 1 7 1 2 105 4 58 2 44 0 33 6 25 9 20 2 15 8 12 5 10 0 8 0 5 3 3 6 Applicable Thermistors Discharge temp TH Compressor temp TH Outdoor temp TH Heat exchanger TH ...

Страница 97: ...ssure sensor 4 5 5 0 0 5 0 Output DCV Pressure MPa DC 02 58 2 2 WHITE PRESSURE SENSOR HIGH BLACK 1 1 RED PS CN118 3 3 2 5 2 5 Check Point Check Voltage from Main PCB DC With the connector connected to the PCB measure the voltage between CN118 2 3 of the Main PCB 2 Low Pressure Sensor Characteristics of pressure sensor 3 5 1 7 0 5 0 Output DCV Pressure MPa DC 2 2 WHITE PRESSURE SENSOR HIGH BLACK 1 ...

Страница 98: ...3 APPENDING DATA Compact cassette cassette Slim Duct DUCT Floor Ceiling Ceiling type SIMULTANEOUS MULTI R410A ...

Страница 99: ...rmar control 30 00 01 02 03 Factory setting Setting Description Function Number Setting Value Standard Slightly warmer control Lower control Warmar control 21 00 01 02 03 Factory setting Setting Value 00 01 02 03 04 05 06 07 08 09 31 Factory setting Static pressure AR G18LLLA Select the appropriate static pressure according to the installation conditions Select appropriate intervals for displaying...

Страница 100: ...d by either indoor unit temperature sensor or remote control unit sensor Remote controller signal code Change the indoor unit Signal Code depending on the remote controllers Factory setting Setting Description Function Number Setting Value A B C D 44 00 01 02 03 External input control Operation Stop mode or Forced stop mode can be selected Factory setting Setting Description Function Number Settin...

Страница 101: ...0 01 Factory setting Seiling height AU G18LVLB AU G22 24LVLA Seiling height AU G30 36LRLE AU G45LRLA Select the setting values in the table below according to the height of the ceiling Select the appropriate ceiling height according to the place of installation Select the appropriate number of outlet directions according to the installation conditions If function setting 20 is set at High ceiling ...

Страница 102: ...ontrollers Factory setting Setting Description Function Number Setting Value A B C D 44 00 01 02 03 External input control Operation Stop mode or Forced stop mode can be selected Factory setting Setting Description Function Number Setting Value Operation Stop mode Setting forbidden Forced stop mode 46 00 01 02 Setting Description Function Number Setting Value Standard Slightly warmer control Lower...

Страница 103: ...o the amount of dust or debris in the room if you do not wish the filter sign to be displayed select the setting value for No indication Cooler room temperature correction Depending on the insralled environment the room temperature sensor may require a correction The settings may be selected as shown in the table below Setting Description Function Number Setting Value Standard 2 500 hours Long int...

Страница 104: ...ription Function Number Setting Value No Yes 42 00 01 If setting value is 00 room temperature is controlled by the indoor unit temperature sensor If setting value is 01 room temperature is controlled by either indoor unit temperature sensor or remote control unit sensor Remote controller signal code Change the indoor unit Signal Code depending on the remote controllers Factory setting Setting Desc...

Страница 105: ...oller Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code The signal code that is set through this process are applicable only to the signal in the FUNCTION SETTING For details on how to set the signal code through the normal process refer to REMOTE CONTROLLER SIGNAL CODE SETTING Function Number Setting Value 2 Press the FAN button...

Страница 106: ...is case start again from step 1 Use the following steps to select the signal code of the remote controller Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code REMOTE CONTROLLER SIGNAL CODE SETTING The remote controller resets to signal code when the batteries in the remote controller are replaced If you use a signal code other than...

Страница 107: ...ion setting Error history I U address verification Version Test run 4 Select R C address of the target indoor unit with pressing the Cur sor button Up Down R C Address Remote Controller Address Cancel OK Function setting Mo 10 00 R C Function Setting address No No 00 00 00 Version Error history 5 Select the Function No with pressing the Cursor button Left Right and select the Function No to be set...

Страница 108: ...re than 5 seconds to cancel the function setting mode In addition the function setting mode will be automatically canceled after 1 minute if no operation is performed Unit number of Indoor unit Function number SU MO TU WE TH FR SA Setting value Settings will not be changed if invalid numbers or setting values are selected The settings may be selected between the following two Function Number or Se...

Страница 109: ...onnector Input select Input signal External connect kit Optional parts Indoor unit Operation Stop Forced stop Terminal Dry contact Edge Operation status CN47 UTY XWZXZG Error status Indoor unit fan operation status External heater output External input and output UTY XCSX Operation Stop Input 1 Input 2 Dry contact Apply voltage Edge Pulse Forced thermostat off Input 1 Edge Operation status Output ...

Страница 110: ...f internal power supply set the slide switch of SW1 to NON VOL side 1 The switches can be used on the following condition DC 12 V to 24 V 1 mA to 15 mA Apply voltage In case of external power supply set the slide switch of SW1 to VOL side 1 The switches can be used on the following condition DC 12 V to 24 V 1 mA to 15 mA 2 Make the power supply DC 12 to 24 10 mA or more 1 2 C Input 1 Input 2 PCB C...

Страница 111: ...hen connecting with a device equipped with a power supply Example Function setting 60 is set to 00 External input and output PCB A twisted pair cable 22AWG should be used Permissible voltage and current DC 5 V to 30 V 3 A AC 30 V to 250 V 3 A For details refer to Chapter 10 3 Combination of external input and output on page 14 1 2 CN47 LED PCB Resistor Connected unit 1 2 Connected device CN47 PCB ...

Страница 112: ...lable Edge 11 60 11 D Operation Stop Forced Thermostat OFF Not available Edge Mode Function setting External input and output PCB Rotary SW External output Indoor unit Output External input and output PCB CN47 Output 1 Output 2 Output 3 0 1 60 00 1 Operation Stop Operation Stop Error status Indoor unit fan operation status 0 2 60 00 2 Operation Stop Error status Indoor unit fan operation status Ex...

Страница 113: ...ut Input signal Command 46 00 Input of indoor unit Terminal Off On Operation On Off Stop 60 00 1 External input and output PCB Input 1 Off On Operation On Off Stop Function setting Rotary SW of External input and output PCB External input Input signal Command 46 00 60 00 1 External input and output PCB Input 1 Pulse Operation Input 2 Pulse Stop Operation Stop Remote controller On Off Indoor unit O...

Страница 114: ...ternal input and output PCB External input Input signal Command 46 02 Input of indoor unit Terminal Off On Forced stop On Off Normal 60 00 1 External input and output PCB Input 1 Off On Forced stop On Off Normal Function setting Rotary SW of External input and output PCB External input Input signal Command 46 02 60 00 1 External input and output PCB Input 1 Pulse Forced stop Input 2 Pulse Normal O...

Страница 115: ...d 46 03 Input of indoor unit Terminal Off On Operation On Off Stop R C disabled 60 00 1 External input and output PCB Input 1 Off On Operation On Off Stop R C disabled Function setting Rotary SW of External input and output PCB External input Input signal Command 46 03 60 00 1 External input and output PCB Input 1 Pulse Operation Input 2 Pulse Stop R C disabled On Input Off Operation Indoor unit S...

Страница 116: ...On Thermostat off 60 09 B 60 10 C On Off Normal operation 60 11 D Function setting Rotary SW of External input and output PCB External output Output signal Command 60 00 1 2 Output of indoor unit CN47 Low High Operation High Low Stop 60 00 1 External input and output PCB Output 1 Off On Operation 60 09 B 60 10 C On Off Stop 60 11 D On Off On Off Compressor Room temp Set temp Input Operation Stop H...

Страница 117: ...or On Off Normal Function setting Rotary SW of External input and output PCB External output Output signal Command 60 10 C Output of indoor unit CN47 Low High Fan run High Low Fan stop 60 00 2 External input and output PCB Output 2 Off On Fan run 60 09 B On Off Fan stop 60 11 D 3 t u p t u O 1 0 0 0 6 Off On Fan run On Off Fan stop Output signal Condition On The indoor unit fan is operating Low Hi...

Страница 118: ...tion Function setting Rotary SW of External input and output PCB External output Output signal Command 60 11 D Output of indoor unit CN47 Low High Heater on High Low Heater off 60 00 2 External input and output PCB Output 3 Off On Heater on 60 09 B n O C 0 1 0 6 Off Heater off Output signal Condition Low High Heater turns on as shown in diagram of heating temperature Off On High Low Heater turns o...

Страница 119: ...Sep 2017 Printed in Japan 3 3 17 Suenaga Takatsu ku Kawasaki 213 8502 Japan ...

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