Fujitsu AOU30RLXEH Service Instruction Download Page 1

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SPLIT TYPE

ROOM AIR CONDITIONER

WALL MOUNTED

type

Models Indoor unit

Outdoor unit

INVERTER

SERVICE

INSTRUCTION

R410A

ASU30RLE

AOU30RLXEH

Summary of Contents for AOU30RLXEH

Page 1: ...SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTEDtype Models Indoor unit Outdoor unit INVERTER SERVICE INSTRUCTION R410A ASU30RLE AOU30RLXEH ...

Page 2: ...P DOWN 01 20 1 16 COMPRESSOR PREHEATING 01 16 1 17 POWERFUL OPERATION 01 16 1 19 ECONOMY OPERATION 01 16 1 30 DEFROST OPERATION CONTROL 01 21 1 31 OFF DEFROST OPERATION CONTRO 01 23 1 18 MINIMUM HEAT OPERATION 01 16 1 32 VARIOUS PROTECTIONS 01 24 1 25 FORCED COOLING OPERATION 01 19 1 26 HEAT INSULATION CONDITION When using the wireless RC 01 19 1 27 THERMO CONTROL FOR INDOOR UNIT SENSOR 01 19 1 28...

Page 3: ... WITH ERROR CODE 2 3 TROUBLE SHOOTING WITH NO ERROR CODE 2 4 SERVICE PARTS INFORMATION 02 01 02 01 2 1 2 WIRED REMOTE CONTROLLER DISPLAY 02 02 02 37 02 04 02 46 2 1 3 OUTDOOR UNIT DISPLAY 02 03 3 3 EXTERNAL INPUT AND OUTPUT 03 10 3 1 FUNCTION SETTING 3 APPENDING DATA 03 01 3 2 THERMISTOR RESISTANCE VALUES 03 09 ...

Page 4: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A WALL MOUNTED type INVERTER ...

Page 5: ...hown in Table1 However the maximum frequency is limited in the range shown in Fig 1 based on the fan speed mode and the outdoor temperature AOU30RLXEH Table 1 Compressor frequency range 46 rps A zone Hi Indoor fan mode Me Lo Quiet Outdoor temp zone B zone C zone D zone E zone F zone 46 rps 46 rps 33 rps 33 rps 33 rps 31 rps 31 rps 31 rps 27 rps 27 rps 27 rps 25 rps 25 rps 25 rps 23 rps 23 rps 23 r...

Page 6: ... to 9 F 4 5 C of the setting temperature the compressor frequency is controlled within the range shown in Table 2 Table 2 Compressor frequency range Minimum frequency Maximum frequency AOU30RLXEH 18 rps 45 rps Frequency AOU30RLXEH X zone J zone 17 rps 15 rps 0 rps Y zone 1 3 DRY OPERATION The compressor rotation frequency shall change according to set temperature and room temperature variation whi...

Page 7: ...temp Ts 4 F 2 C COOLING AUTO DRY OPERATION HEATING OPERATION YES YES NO NO NO AUTO CHANGEOVER operation flow chart TS Setting temperature Room temp Thermostat remains in OFF state for 6 minutes 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 opera...

Page 8: ...d in 5 steps such as Auto Quiet Low Med High while the indoor fan only runs 3 COOLING OPERATION Switch the airflow Auto and the indoor fan motor will run according to a room temperature as shown in Fig 7 On the other hand if switched in High Quiet the indoor motor will run at a constant airflow of Cool operation modes Quiet Low Med High as shown in Table 5 Fig 5 Airflow change over Cooling Auto Wh...

Page 9: ...r 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 Lower speed is selected Indoor heat exchanger temperature rises Indoor heat exchanger temperature drops Hi Me or setting fan mode Lo or setting fan mode Lower speed is selected 10 min later 107 6 F 42 C 86 F 30 C 102 2 F 39 C 98 6 F 37 C 93 2 F ...

Page 10: ...ow speed 02 Enable or disable this function by remote controller setting Set to 00 or 01 when connecting a remote controller that cannot set the Fan control for energy saving function or connecting a network converter To confirm if the remote controller has this setting refer to the operating manual of each remote controller Switch the airflow AUTO at cooling mode addition in the case of Energy sa...

Page 11: ...s decided depending on the compressor and the outdoor temperature The compressor and the fan start up at the same time and the fan stops after the compressor stops and 60 seconds has passed Cooling 850 780 520 480 400 350 280 rpm 800 750 520 350 280 0 rpm AOU30RLXEH Upper fan Lower fan Heating 870 780 520 350 200 170 150 rpm 840 750 520 350 200 170 150 rpm AOU30RLXEH 01 07 ...

Page 12: ...r flow will be horizontal However the Airflow Direction cannot be adjusted at beginning AUTO operation mode Cooling Dry mode Heating mode 3 SWING OPERATION When the swing signal is received from the remote controller the vertical louver starts to swing Table 8 Swinging range Range To select Vertical Airflow Swing Operation To select Horizontal Airflow Swing Operation When the swing signal is recei...

Page 13: ... frequency soon after the start up is controlled as shown in Fig 12 Fig 12 Compressor Control at Start up Upper limit speed Upper limit speed Upper limit speed Upper limit speed Elapsed time Elapsed time Elapsed time Elapsed time Ta Outdoor temperature Normal start up 60 28 40 54 70 180 270 360 30 120 300 650 30 270 480 560 620 650 sec sec sec sec 16 25 54 40 28 70 rps rps rps rps 16 25 54 70 70 6...

Page 14: ... time Operation mode Operation will start from the timer setting either OFF timer or ON timer whichever is closest to the clock s current timer setting The order of operations is indicated by the arrow in the remote control unit s display SLEEP timer operation cannot be combined with ON timer operation Stop mode Stop mode Stop mode Operation mode Operation mode Set time Set time Set time Set time ...

Page 15: ...er 1 hour After that the setting temperature is not changed and the operation is stopped at the time of timer setting Ts Set 60min In the HEATING operation mode When the sleep timer is set the setting temperature is decreased 2 F 1 C It decreases the setting temperature another 2 F 1 C every 30 minutes Upon lowering 8 F 4 C the setting temperature is not changed and the operation stops at the time...

Page 16: ...set in 30 min increments only The OFF time can be carried over to next day The ON timer and the OFF timer functions cannot be set with using the weekly timer Both ON and OFF time must be set 2 WEEKLY TIMER 2 1 WEEKLY TIMER Stop mode Stop mode Stop mode Operation mode Operation mode Set time Set time Set time Set time AR WEC1E 2 wire remote controller ON TIMER 3 wire remote controller can be connec...

Page 17: ...has passed Normal Next day setting If the operating time carries over to the next day during a next day setting the effective DAY OFF range will be set as shown below 2 2 DAY OFF setting Stop mode Stop mode Operation mode Stop mode Operation mode Preceding day Next day DAY OFF Stop mode Stop mode Operation mode Stop mode Operation mode DAY OFF Setting day Preceding day Next day Setting day 01 13 ...

Page 18: ...he last initialization the compressor is compulsorily stopped AOU30RLXEH Table 13 The pulse range of the electronic expansion valve control Cooling Dry Heating Operation Under the condition where the air conditioner runs press the TEST RUN button and the test operation control mode will appear During test running the Operation LED and Timer LED of the air conditioner body blinks simultaneously Set...

Page 19: ...The compressor won t enter operation status for 3 minutes after the compressor is stopped even if any operation is given 1 12 PREVENT TO RESTART FOR 3 MINUTES 3 MINUTES ST 01 15 When the power was interrupted by a power failure etc during operation the operation contents at that time are memorized and when power is recovered operation is automatically resumed with the memorized operation contents ...

Page 20: ...Economy operation The POWERFUL OPERATION functions by pressing POWERFUL button on the remote controller The indoor unit outdoor unit will operate at maximum power as shown in Table 16 Release Condition is as follows Cooling Dry Room tenperature Setting temperature 1 F 0 5 C or Operation time has passed 20 minutes COMPRESSOR FREQUENCY Maximum FAN CONT MODE Powerful SETTING LOUVER Cooling Dry 3 Heat...

Page 21: ... the capacity condition 30min Enough 30min Enough 30min Shortage 30min Shortage 3 Operation Automatic switching 1 Level 1 setting Automatic switching 2 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...

Page 22: ...ts that there is no one in the room for 20 minutes or more it automatically changes the operation as below settings When someone comes back into the room the human sensor will detect this and automatically revert to the original settings 90 22ft 7m 50 50 Vertical angle 90 Side view Horizontal angle 100 Top view Application range The sensor unit should detect when the human body estimate 150cmX30cm...

Page 23: ...peration is as shown in Fig 14 and 15 But adjustment is possible by the room temperature correction function setting Function Number 30 or 31 When room temperature is controlled by the Wired remote sensor compressor operation is as shown in Fig 16 and 17 But adjustment is possible by the room temperature correction function setting Function Number 92 or 93 The FORCED COOLING OPERATION starts up wh...

Page 24: ...own in the above ﬁgure and the fans and the compressor start operating e h t g n i t a r e p o s i r o s s e r p m o c e h t e l i h w d e s s e r p s i n o t t u b N W O D P M U P e h t f I 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 P...

Page 25: ...n time Table 26 Condition of Integrating OFF count defrost operation Table 24 Condition of 2nd defrost operation Compressor integrating operation time Tn 77 F 25 C Tn Tn10 41 F 5 C Tn 42 8 F 6 C Tn Tnb 35 6 F 2 C Tn 42 8 F 6 C Tn10 Temperature of continuous operation at 10 minutes Tnb Back 5 minutes temperature Tn Outdoor heat exchanger temperature Ta Outdoor temperature More than 210 minutes For ...

Page 26: ...sec later 4 way valve OFF 35 sec later compressor ON Compressor integrating operation Over 210 minutes Integrating defrost Defrost Indicator Operation lamp 6 sec ON 2 sec OFF Defrost start Tn 26 6 F 3 C and after 30 minutes in the 26 6 F 3 C Compressor integrating operation Over 210 minutes Tn 23 F 5 C Compressor OFF count 40 times Less than 10 minutes 1st defrost and after 5 minutes in the 23 F 5...

Page 27: ... compressor operation integrating time lasts for more than 30 minutes OFF Defrost Flow Chart Heating operation stop Outdoor heat exchanger temp Below 24 8 F 4 C and Compressor integrating operation Over 30 minutes Defrost start Defrost Indicator Operation lamp 6 sec ON 2 sec OFF Outdoor heat exchanger temp Over 53 6 F 12 C or Compressor ON time Maximum 15 minutes Defrost end 2 OFF DEFROST RELEASE ...

Page 28: ...r frequency returns to the designated frequency of the indoor unit at the time when the frequency becomes lower than the release value Table 30 Operation value Release value Ta Outdoor temperature 2 CURRENT RELEASE CONTROL Heating 870 840rpm 780 750rpm 520 520rpm 350 350rpm 200 200rpm 68 0 F 20 C 68 0 F 20 C Ta 122 F 50 C Ta 14 5A 14 0A 16 5A 16 0A 19 5A 19 0A Outdoor unit fan speed UP LO Ta 53 6 ...

Page 29: ... than 10 C 1 or 12 C 2 Less than 10 C 1 or 12 C 2 1 When the temperature rises 2 When the temperature drops 39 2 F 4 C 44 6 F 7 C 55 4 F 13 C Temperature Temperature 154 4 F 68 C 145 4 F 63 C 4 COOLING PRESSURE OVER RISE PROTECTION On cooling mode the compressor frequency is controlled as following based on the detection value of the outdoor heat exchanger temperature sensor Outdoor heat exchange ...

Page 30: ...ayed and the compressor stops Permanent stop psi 0 78MPaG psi 0 68MPaG Release of protection 8 rps every 1 minute Pressure Fig 20 Anti freezing protection a When the low pressure value becomes psi 0 68MPaG or less continues for 1 minute the compressor speed 8 rps b When the low pressure value becomes psi 0 68MPaG or less after the protection a the compressor continues speed 8 rps every 1 minute un...

Page 31: ...ghts on during Peak cut mode when local setting is activated Lighting pattern of L4 L5 and L6 indicates peak cut level SW1 SW2 SW3 SW4 SW5 1 2 3 4 5 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 SW1 To switch between Local setting and Error code display SW2 To switch be...

Page 32: ...ower Mode Error L1 L2 L6 L5 L4 L3 1 2 3 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 32 When the P...

Page 33: ...lue Low pressure range 0 304 58psi 0 2 1MPa Pressure sensor value High pressure range 304 58 609 16psi 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...

Page 34: ...rge Temperature 30 120 C 22 248 F Heat exchanger Temperature Middle 22 176 F 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 Round u...

Page 35: ...ITCH Return to Procedure 3 Press the ENTER SWITCH Error code is displayed by lighting LED Refer to TROUBLESHOOTING 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 33 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 Ref...

Page 36: ...R410A WALL MOUNTED type INVERTER 2 TROUBLE SHOOTING ...

Page 37: ...e Thermistor Error Heat Ex Middle Temp Thermistor Error Heat Ex Liquid Temp Thermistor Error Outdoor Thermistor Error Compressor Thermistor Error 1 2 3 4 8 9 11 12 13 14 15 16 17 18 19 20 22 24 25 26 27 28 29 30 31 32 8 times 4 times Current Sensor Error 8 times 6 times Pressure Sensor Error 10 times 3 times Compressure Temp Error 10 times 5 times Low Pressure Error 5 times 9 times 9 times 7 times...

Page 38: ...utton to select the error history number SU MOTU WETH FR SA Error code Error history number 0 1 2 3 4 5 6 7 F E d c b A 9 8 ı ı Lower Raise 02 02 1 If an error occurs an error icon appears on the Monitor mode screen Touch the Status on the Monitor mode screen The Status screen is displayed 2 Touch the Error Information on the Status screen The Error Information screen is displayed If there are no ...

Page 39: ... 2 2 2 2 2 1 5 6 2 6 5 7 1 18 7 2 7 3 7 4 8 4 9 4 9 5 9 7 9 8 9 9 0 1 1 0 1 3 0 1 5 5 1 Heat Ex middle temp sensor Error Heat Ex liquid temp sensor Errorr LED DISPLAY PUMP DOWN LOW NOISE PEAK CUT Trouble shooting 2 14 17 19 20 22 24 25 27 28 29 30 31 32 1 3 6 8 10 13 1 15 1 15 Times Blinking Light ON F F O t h g i L 2 2Times Blinking You can determine the operating status by the lighting up and bl...

Page 40: ...gnal Reverse transfer signal Check serial signal Reverse transfer signal Check if indicated value swings between AC90V and AC270V at outdoor unit terminal 1 3 If it is abnormal Check the parts as follows Outdoor unit fan motor SERVICE PARTS INFORMATION 5 Active filter module SERVICEPARTS INFORMATION 6 Transistor PCB IPM SERVICEPARTS INFORMATION 7 Filter PCB Check the wire of CN101 If Outdoor fan m...

Page 41: ...or open cable or miss wiring Test 3 Check the voltage of power supply Check the voltage of power supply Check if AC187V AC208V 10 253V AC230V 10 appears at outdoor unit terminal L N Check serial signal Forward transfer signal Check if indicated value swings berween AC30v and AC130V at outdoor unit terminal 2 3 If it is abnormal replace Controller PCB 1 2 3 L N RED WHITE BLACK BLACK WHITE POWER MOD...

Page 42: ... Check Remote Control once again Replace Controller PCB Ceck Voltage at CN12 of Controller PCB terminal 1 2 Power supply to Remote Control Trouble shooting 3 INDOOR UNIT Error Method Wired Remote Controller Communication Error Indoor unit controller PCB Wired remote controller When the indoor unit cannot properly receive the signal from wired remote controller for 1 minutes or more Detective Actua...

Page 43: ...en cable 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 failure 3 Controller PCB failure Check Point 1 Check the connection Indicate or Display Indoor Unit Operation lamp 1 times Flash Timer lamp 8 times Flash ERROR CODE E 18 Check Point 2 Replace external I O PCB If Check Point 1 do not imp...

Page 44: ...ecast of Cause OK Combination Error Indoor unit 1 The selection of indoor units is incorrect Check Point 1 Check 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 Indicate or Display Indoor Unit Operation lamp 2 times Flash Timer la...

Page 45: ...on 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 existing in one RCg...

Page 46: ...ring 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 Indicate or Display Indoor Unit Operation lamp 2 times Flash Timer lamp 9 times Flash ERROR COD...

Page 47: ...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 rewriting Change Controller PCB Check all connectors loose connector or incorrect wiring Check any shortage or corrosion on PCB 1 When model information of EEPROM is incorrect 2 When the acce...

Page 48: ...the symptom replace Controller PCB and Indicator PCB OK Trouble shooting 9 INDOOR UNIT Error Method Manual Auto Switch Error Indoor unit controller PCB Indicator PCB Manual auto switch When the Manual Auto Switch becomes ON for consecutive 60 or more seconds Detective Actuators Detective details Indicate of Display Forecast of Cause 02 12 n n times blinking Light ON Light OFF Outdoor unit POWER MO...

Page 49: ...t controller PCB defective Check Point 1 Check the connection of terminal Indoor unit Check the connection of terminal between remote control and indoor unit or between Indoor units and check if there is a disconnection or short of the cable Check terminal voltage of controller PCB connector CNC01 Power supply for remote If DC12V Remote control failure Controller PCB is OK Replace Remote controlle...

Page 50: ...DC5 0V If the voltage does not appear replace Controller PCB and execute the check operation again Temperature C Temperature F 10 0 10 20 30 40 45 14 32 50 68 86 104 113 58 25 33 62 20 17 12 54 8 04 5 30 4 35 Resistance value k Room Temp Thermistor Pipe Temp Thermistor BLACK BLACK 1 2 3 4 1 2 3 4 CN1 BLACK BLACK Trouble shooting 11 INDOOR UNIT Error Method Indoor Room Thermistor Error Indoor unit ...

Page 51: ... PCB and execute the check operation again Temperature C Temperature F 10 0 10 20 30 40 50 14 32 50 68 86 104 122 312 27 30 22 1131 91 20 4 579 59 60 140 11 64 65 149 9 69 176 03 103 34 62 91 39 57 25 64 17 06 Resistance value k Temperature C Temperature F Resistance value k Room Temp Thermistor Pipe Temp Thermistor BLACK BLACK 1 2 3 4 1 2 3 4 CN1 BLACK BLACK Trouble shooting 12 INDOOR UNIT Error ...

Page 52: ...st 1 3 do not improve the symptom replace Power Supply PCB Test 3 Check Indoor unit fan motor Check Indoor unit fan motor if Indoor unit fan motor is abnormal replace Indoor unit fan motor Trouble shooting 13 INDOOR UNIT Error Method Indoor Unit Fan Motor Error Indoor unit power supply PCB Indoor unit fan motor When the fan motor speed is less than 1 3 of the target fan speed for 56 seconds When d...

Page 53: ...the power cable Neon light bulb or any electronic equipment which causes harmonic 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 Rewritin...

Page 54: ...thod Inverter Error Transistor PCB Error information received from Transistor PCB Detective Actuators Detective details Indicate of Display Forecast of Cause Outdoor unit POWER MODE ERROR 2 6 L1 L2 L6 L5 L4 L3 3 PUMP DOWN LOW NOISE PEAK CUT 02 18 OK Test 3 Replace Transistor PCB If Test 1 2 do not improve the symptom replace Transistor PCB Outdoor unit and execute the check operation again OK Test...

Page 55: ...ent causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding OK Test 5 Replace Main PCB If Test 1 4 do not improve the symptom change Main PCB OK OK Test 3 Check Active filter module Check Active filter module If Active filter module is abnormal replace it Check Transistor PCB If Transistor PCB is abnormal repl...

Page 56: ...Outdoor Fan Motor Refer to Trouble shooting 28 29 If the Fan Motor is failure replace it Test 4 Check Compressor Check Compressor SERVICE PARTS INFORMATION 2 If Test 1 5 do not improve the symptom change Main PCB OK Test 5 Check Transistor PCB Check Transistor PCB If Transistor PCB is abnormal replace it Trouble shooting 17 OUTDOOR UNIT Error Method IPM Error Outdoor unit main PCB Compressor Trans...

Page 57: ...removed Check erroneous connection Check if thermistor cable is open Reset Power when reinstalling due to removed connector or incorrect wiring OK OK Test 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 Temperature C Tem...

Page 58: ...B 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 Temperature C Temperature F 10 0 10 20 30 40 50 14 32 50 68 86 104 122 292 91 20 4 531 56 70 158 8 70 168 60 100 91 62 55 40 01 26 34 17 79 60 140 12 30 Resistance value k Temperature C Temperature F 90 1...

Page 59: ...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 Temperature C Temperature F 10 0 10 20 30 40 50 14 32 50 68 86 104 122 27 81 30 22 95 58 20 4 50 31 16 05 103 34 9 63 3 84 2 53 1 71 Resistance value k Temperature C Temperature F 80 90 17...

Page 60: ... cable is open Reset Power when reinstalling due to removed connector or incorrect wiring OK OK Test 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 Temperature C Temperature F 10 0 10 20 30 40 50 14 32 50 68 86 104 122 ...

Page 61: ...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 Temperature C Temperature F 10 0 10 20 30 40 50 14 32 50 68 86 104 122 62 28 30 22 224 33 20 4 115 24 60 140 2 36 70 158 1 65 80 176 1 65 35 21 20 72 12 64 7 97 5 18 3 45 Resistance value k Temperature C Te...

Page 62: ...ouble shooting 23 Detective Actuators Detective details OUTDOOR UNIT Error Method Forecast of Cause If this error is displayed replace Inverter PCB Indicate or Display Indoor Unit Operation lamp 7 times Flash Timer lamp 7 times Flash ERROR CODE E 77 n n times blinking Light ON Light OFF Mode Error 2 7 L1 L2 3 L 4 L 5 L 6 L 7 Outdoor unit ...

Page 63: ...t causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Test 1 1 Reset Power Supply and operate Does Error indication show again If Test 1 2 do not improve the symptom change Filter PCB Test 4 Replace Main PCB If Test 3 do not improve the symptom change Main PCB Trouble shooting 24 OUTDOOR UNIT Error Method ...

Page 64: ...ast of Cause Outdoor unit POWER MODE ERROR 2 8 L1 L2 L6 L5 L4 L3 6 PUMP DOWN LOW NOISE PEAK CUT Test 2 Check Voltage from Main PCB Test 1 Check the connection of the pressure sensor DC DC With the connector connected to the PCB measure the voltage between CN91 3 4 of the Main PCB Characteristics of pressure sensor 4 5 5 0 0 5 0 Output DCV Pressure psi MPa 362 59 725 19 PRESSURE SENSOR PS 2 5 2 5 U...

Page 65: ...fect of other heat sources Discharged air not sucked in Test 1 Check the outdoor unit fan operation heat exchanger ambient temperature Check IPM SERVICE PARTS INFORMATION 8 Trouble shooting 26 OUTDOOR UNIT Error Method Over Current Error Outdoor unit main PCB Compressor Transistor PCB Protection stop by overcurrent generation after inverter compressor start processing completed generated consecuti...

Page 66: ... same operation is repeated within 40sec the compressor stops again If andrepeats 5 times the compressor stops permanently Test 1 Check Noise from Compressor Turn on Power and check operation noise If an abnormal noise show replace Compressor OK Test 5 Replace Compressor If Test 4 do not improve the symptom change Compressor OK OK Test 3 Check Transistor PCB IPM If IPM is abnormal replace Transist...

Page 67: ...LLOW BROWN RED FM Fan motor 1 Upper Test 2 Check ambient temp around motor OK Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation Trouble shooting 28 OUTDOOR UNIT Error Method Outdoor Unit Fan Motor 1 Error Outdoor unit main PCB Outdoor unit fan motor When outdoor fan rotation speed is less th...

Page 68: ...sively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation CN802 1 2 3 4 5 6 1 2 3 4 5 6 BLACK WHITE YELLOW BROWN RED FM Fan motor 2 Lower Trouble shooting 29 OUTDOOR UNIT Error Method Outdoor Unit Fan Motor 2 Error Outdoor unit main PCB Outdoor unit fan motor Detective Actuators Detective details Indicate of D...

Page 69: ... of Indoor unit Isn t it fallen off the holder Is there a cable pinched Check characteristics of thermistor Refer to Trouble shooting 11 12 If defective replace the thermistor Trouble shooting 30 OUTDOOR UNIT Error Method 4 Way Valve Error Indoor unit controller PCB circuit Heat Ex temperature thermistor Room temperature thermistor 4 way valve When the indoor heat exchanger temperature is compared...

Page 70: ...Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation Test 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was closed open the 3 way valve liquid side and check operation OK 1 3 way valve not opened 2 EEV defective strainer clogged Trouble shooting 31 OUTDOOR UNIT Error Method Discharge Temp Error Discharge tempera...

Page 71: ...before and after EEV ACM oil return Test 2 Check the EEV strainer EEV open Strainer clogging check before and after EEV ACM oil return Test 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation Test 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was closed open the 3 way valve liquid side and check operation OK ...

Page 72: ... 25 Test 6 Check the suction pressure sensor Test 7 Check the refrigerant amount Leak check Test 5 Check the solenoid valve SV1 Solenoid Cooling operation Heating operation Test 1 Check if 3 way valve gas side is open If the 3 way valve gas side was closed open the 3 way valve gas side and check operation Test 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was closed ope...

Page 73: ...er 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 2 3 TROUBLE SHOOTING WITH NO ERROR CODE Test 3 Check Electrical Components YES YES OK NO Check the voltage of power supply Check if AC187 253V appears at Outdoor Unit Terminal L N Check Varistor in F...

Page 74: ...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 AC187 253V appears at Outdoor...

Page 75: ...Turn off 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 o...

Page 76: ...d 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 clogged Refer to the figure at right Measure Gas Pr...

Page 77: ...rille 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 SERVICE PARTS INFORMATION 1 2 Water Leaking 1 Erroneous installation 2 Drai...

Page 78: ...nit sensor Ref Test 4 Check Function Settings Test 3 Check the remote controller display Test 2 Verity room temperature sensing location Indoor unit sensor Wired remote sensor Do you want room temperature sensed at the wired remote controller Wired remote sensor or by they build in sensor inside the unit Indoor unit sensor Test 1 2 Check effects of Function Setting change Is the space still too wa...

Page 79: ...ress and hold down the THERMO SENSOR button to turn on the icon Ref Please reference the APPENDING DATA Using the table on the right adjust temperature correction by changing function setting 93 Room Temperature control for wired remote controller sensor Test 6 Check Function Setting Is function 48 Room temperature sensor switching set to 01 Test 4 Check the Function Setting Test 4 1 Check the Fun...

Page 80: ...nit sensor Ref Test 4 Check Function Settings Test 3 Check the remote controller display Test 2 Verity room temperature sensing location Indoor unit sensor Wired remote sensor Do you want room temperature sensed at the wired remote controller Wired remote sensor or by they build in sensor inside the unit Indoor unit sensor Test 1 2 Check effects of Function Setting change Is the space still too wa...

Page 81: ...ress and hold down the THERMO SENSOR button to turn on the icon Ref Please reference the APPENDING DATA Using the table on the right adjust temperature correction by changing function setting 92 Room Temperature control for wired remote controller sensor Test 6 Check Function Setting Is function 48 Room temperature sensor switching set to 01 Test 4 Check the Function Setting Test 4 1 Check the Fun...

Page 82: ...ssor 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 SERVICE PARTS INFORMATION 3 If there is no failure the defect of Compressor can be considered Compression pa...

Page 83: ...tion of Compressor loose or incorrect wiring Check winding resistance of each terminal If the resistance value is 0 or infinite replace Compressor If the symptom does not change with above Check 1 2 replace Main PCB Resistance Value 0 24 at 68 F 20 C U RED V WHITE W BLACK Transistor PCB TM303 W TM304 V TM305 U RED WHITE BLACK Compressor Inverter PCB 02 47 ...

Page 84: ...tor 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 has no temp difference ...

Page 85: ...oltage Vm No function No function Earth terminal GND Control voltage Vcc Speed command Vsp Feed back FG SERVICE PARTS INFORMATION 5 Test 1 Check rotation of Fan Outdoor 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 Test 2 Check resistance of Outdoor Fan Motor 1 or 2 Refer to below Circuit test...

Page 86: ... or open cable Remove connector check resistance of Heater wire If Resistance value is abnormal replace Heater Unit Test 2 Check electrical components Check Check Fuses If Fuse is open check connection and replace Fuse 320 7 367 3 CN9 1 2 3 4 1 2 3 4 BLACK WHITE HEATER FUSE AC250V 5A THERMOSTAT at 77 F 25 C SERVICE PARTS INFORMATION 6 Heater unit ...

Page 87: ... 1 01M Ref value 1 0 76M Ref value 2 SACT32010 HITACHI LACT33020 HITACHI PM 604 FGEL PM 703 FGEL PM 601 FGEL 360k 20 0 900k 20 1 01M Ref value 1 0 76M Ref value 2 540k 20 1 65M Ref value 1 1 14M Ref value 2 LOT No 1302931396 LOT No 1302931395 PM 601 FGEL Type A Type B Table 1 Each type standard value multimeter IN N1 N IN IN N1 N is FGEL terminal name L2 P P L2 Terminal Resistance value 1 32M Ref ...

Page 88: ...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 TM301 P TM305 U TM304 V TM303 W TM302 N TM305 U TM304 V TM303 W 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 2...

Page 89: ...R410A WALL MOUNTED type INVERTER 3 APPENDING DATA ...

Page 90: ...rs Long interval 1000 hours Short interval 200 hours No indication 11 00 01 02 03 1 1 Setting the Filter sign Select appropriate intervals for displaying the filter sign on the indoor unit according to the estimated amount of dust in the air of the room If the indication is not required select No indication 03 Function Details 1 2 Setting the Auto restart Enable or disable automatic restart after ...

Page 91: ...0 and 31 too Setting Description Function Number Setting Value Both Wired remote controller 48 00 01 Factory setting 03 02 1 4 Setting the Remote controller custom code Only for wireless remote controller The indoor unit custom code can be changed Select the appropriate custom code Factory setting Setting Description Function Number Setting Value A B C D 44 00 01 02 03 1 3 Setting the Room tempera...

Page 92: ...ting Value Operation status 60 00 01 08 10 Factory setting Setting Description Function Number Setting Value Nromal control 96 00 Server room control Primary unit 01 02 Factory setting 00 When the outdoor unit is stopped the indoor unit fan operates continuously following the setting on the remote controller 01 When the outdoor unit is stopped the indoor unit fan operates intermittently at a very ...

Page 93: ... insulation 00 allows system to rapidly respond to the cooling or heating load changes High insulation 01 is when the heat insulation structure of the building is high and does not require system to rapidly respond to cooling or heating load changes When High insulation 01 is selected Overheating overcooling is prevented at the start up All room temp control settings Function 30 31 35 36 will rese...

Page 94: ...th 01 Ensure that the Thermo Sensor icon is displayed on the remote controller screen Setting Description Function Number Setting Value No correction 0 0 F 0 0 C 1 F 0 5 C 2 F 1 0 C 4 F 2 0 C 3 F 1 5 C 5 F 2 5 C 6 F 3 0 C 7 F 3 5 C 8 F 4 0 C 1 F 0 5 C 2 F 1 0 C 3 F 1 5 C 4 F 2 0 C 5 F 2 5 C 6 F 3 0 C 7 F 3 5 C 8 F 4 0 C No correction 0 0 F 0 0 C 00 01 02 03 04 05 06 07 08 09 10 11 12 13 15 14 16 1...

Page 95: ... function number selection Selecting the Function Number and Setting Value 5 Next please press the START STOP button Please confirm that the beep sounds 6 Press the RESET button to cancel the function setting mode 7 After completing the FUNCTION SETTING be sure to disconnect the power and connect it again CAUTION After disconnect the power wait 10 seconds or more before connect it again The FUNCTI...

Page 96: ...3 1 3 Procedures to change the Function Setting 03 07 ...

Page 97: ... TEMP buttons to change the signal code between Match the code on the display to the air conditioner signal code If no buttons are pressed within 30 seconds after the signal code is displayed the system returns to the original clock display In this case start again from step 1 The air conditioner signal code is set to A prior to shipment CAUTION 1 Press the START STOP button until only the clock i...

Page 98: ...4 43 185 85 0 52 4 51 194 90 0 45 4 57 Heat exchanger thermistor Temp F C Resistance k Voltage V 22 30 224 33 0 73 12 25 159 71 0 97 4 20 115 24 1 25 5 15 84 21 1 56 5 10 62 28 1 90 14 5 46 58 2 26 32 0 35 21 2 61 41 5 26 88 2 94 50 10 20 72 3 25 59 15 16 12 3 52 68 20 12 64 3 76 77 25 10 00 3 97 86 30 7 97 4 14 95 35 6 40 4 28 104 40 5 18 4 41 113 45 4 21 4 51 122 50 3 45 4 59 131 55 2 85 4 65 14...

Page 99: ...A PCB External input External output Connector Input select Input signal External connect kit Optional parts Indoor unit Operation Stop Forced stop Operation status CN3 CN313 CN310 CN311 CN312 CN313 CN314 CN2 Dry contact Edge Edge Pulse Edge Dry contact Apply voltage UTY XWZXZ3 Error status Indoor unit fan operation status Set point attainment status External input and output UTY XCSXZ1 Operation ...

Page 100: ...itch of SW301 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 SW301 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 03 10 1 2 3 Input 1 PCB Connected unit 1 2 3 Input 2 Connector ...

Page 101: ...Permissible current 50 mA For details refer to Chapter 10 3 Combination of external input and output on page 31 When indicator etc are connected directly Example Function setting 60 is set to 00 When connecting with a device equipped with a power supply Example Function setting 60 is set to 00 03 11 3 3 2 External output 1 2 Connector CN3 LED PCB Resistor Connected unit 1 2 Connected device Connec...

Page 102: ...mple Function setting 60 is set to 00 When connecting with a device equipped with a power supply Example Function setting 60 is set to 00 1 2 Connector CN310 LED 1 Operation status PCB Resistor Connected unit 1 2 Connector CN311 LED 2 Error status Resistor 1 2 Connector CN312 LED 3 Indoor unit fan operation status Resistor 1 2 Connected device 1 Connector CN310 PCB Connected unit Relay Operation s...

Page 103: ...hermostat Off 10 60 10 C Forced thermostat Off 11 60 11 D Forced thermostat Off 12 60 12 D Forced thermostat Off Mode Function setting Rotary SW External output Indoor unit External input and output PCB CN3 1 CN310 2 CN311 3 CN312 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 External...

Page 104: ...ermostat On Heating thermostat On Remote controller output External heater output 9 60 09 B Error status Operation Stop Indoor unit fan operation status External heater output 10 60 10 C Indoor unit fan operation status Operation Stop Error status External heater output 11 60 11 D External heater output Operation Stop Indoor unit fan operation status Error status 12 60 12 D Set point attainment st...

Page 105: ...tting Rotary SW on External input and output PCB External input Input signal Command 0 1 46 00 Input of indoor unit CN2 Off On Operation On Off Stop 60 00 1 External input and output PCB CN313 Off On Operation On Off Stop Mode Function setting Rotary SW on External input and output PCB External input Input signal Command 0 1 46 00 60 00 1 External input and output PCB CN313 Pulse Operation CN314 P...

Page 106: ...ndary unit Mode Function setting Rotary SW on External input and output PCB External input Input signal Command 0 1 46 02 Input of indoor unit CN2 Off On Forced stop On Off Normal 60 00 1 External input and output PCB CN313 Off On Forced stop On Off Normal Mode Function setting Rotary SW on External input and output PCB External input Input signal Command 0 1 46 02 60 00 1 External input and outpu...

Page 107: ...nd output PCB External input Input signal Command 0 1 46 03 Input of indoor unit CN2 Off On Operation On Off Stop R C disabled 60 00 1 External input and output PCB CN313 Off On Operation On Off Stop R C disabled Mode Function setting Rotary SW on External input and output PCB External input Input signal Command 0 1 46 03 60 00 1 External input and output PCB CN313 Pulse Operation CN314 Pulse Stop...

Page 108: ...00 2 60 09 B 60 10 C External input and output PCB CN313 Off On Thermostat off On Off Normal operation On Off On Off Compressor Room temp Set temp Input 76 F 80 F 74 F 84 F 68 F Away Custom Auto Auto Cool Heat Office Set Temp Mode Menu Status Vacation Fan Fri 10 00AM Room Temp Cool Heat 76 F 80 F 74 F 84 F 68 F Away Custom Auto Auto Cool Heat Office Set Temp Mode Menu Status Vacation Fan Fri 10 00...

Page 109: ...or unit Once Forced thermostat Off signal received indoor unit stop operation 76 F 80 F 74 F 84 F 68 F Away Custom Auto Auto Cool Heat Office Set Temp Mode Menu Status Vacation Fan Fri 10 00AM Room Temp Cool Heat 82 F 28 C 88 F 31 C External input wire Except indoor unit and external wire all other items are locally purchased Relay Indoor unit External controller Ventilator Outdoor thermistor Indo...

Page 110: ... 2 Output of indoor unit CN3 Low High Operation High Low Stop 0 1 60 00 1 External input and output PCB CN310 Off On Operation On Off Stop Mode Function setting Rotary SW on External input and output PCB External output Output signal Command 9 60 09 B Output of indoor unit CN3 Low High Error High Low Normal 0 1 60 00 1 External input and output PCB CN311 Off On Error On Off Normal Operation Stop H...

Page 111: ...door unit CN3 Low High Fan run High Low Fan stop 0 1 60 00 1 External input and output PCB CN312 Off On Fan run On Off Fan stop Output signal Condition On The indoor unit fan is operating Low High Off The fan is stopped or during cold air prevention High Low During thermostat off when in dry mode operation Fan run Fan stop High Low CN3 On Off CN311 312 Indoor unit ...

Page 112: ...put the set point attainment status if any of the unit is outputting alternative operation command Mode Function setting Rotary SW on External input and output PCB External output Output signal Command 12 60 12 D Output of indoor unit CN3 On Off Normal Off On Set point attainment Output signal Condition Off Reached the set point Tr Tsα 1 F 0 5 C On Unreached the set point Tr Tsα 5 F 2 5 C However ...

Page 113: ... thermostat On Off On Mechanical cooling Off On Off Normal operation 76 F 80 F 74 F 84 F 68 F Away Custom Auto Auto Cool Heat Office Set Temp Mode Menu Status Vacation Fan Fri 10 00AM Room Temp Cool Heat 83 F 27 5 C 84 F 28 C 89 F 31 C Direct digital controller Thermistor Thermistor Ventilator Indoor temperature Set temperature Outdoor temperature Output Cooling thermostat On Output Off Cooling th...

Page 114: ...minute and off 3 minutes 2 Remote controller setting Either of 0 or 1 Outdoor temp Indoor temp On Set temp 0 9 F 0 5 C Set temp 0 9 F 0 5 C Outdoor temp Indoor temp Off Off Off Off On On On Signal detected by external controller Mechanical cooling Off EXT IN2 Cooling thermostat On EXT OUT Mechanical cooling Fan 49 01 Indoor unit Indoor temp ...

Page 115: ...itted heat from the external heater Fujitsu General Ltd is not responsible for inappropriate designing or installation of external heating device Control Primary heater Auxiliary heater Function setting Indoor unit Wired R C Control switching external heaters No 61 Sensor activation UTY RNRUZ1 Auxiliary heater control 1 RAC heat pump External device Hot water electrical heater etc 61 00 Auxiliary ...

Page 116: ...ture switching of external heaters All control temperatures will shift by adjusting Thon Operation Condition Heater on Heater is on as shown in following diagram of heating temperature Heater off Heater is off as shown in following diagram of heating temperature Other than heating mode Error occurred Forced thermostat off Fan stop protection Operation Condition Heater on Heater is on as shown in f...

Page 117: ...st run Operation Condition Heater on Heater is on as shown in following diagram of heating temperature Heater off Heater is off as shown in following diagram of heating temperature Other than heating mode Error occurred Forced thermostat off Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts 0 9 F 0 5 C Tr Ts Tr Ts Thon 0 9 F 0 5 C On 0 9 F 0 5 C 0 9 F 0 5 C On 12 V On ...

Page 118: ...ater off Heater is off as shown in following diagram of heating temperature Other than heating mode Error occurred Forced thermostat off Heat pump only zone Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts 0 9 F 0 5 C Tr Ts Tr Ts Thon 0 9 F 0 5 C Heat pump only zone Heat pump Combination zone Heat pump Heater Heat pump prohibition zone Heater B 42 8 F 6 C A 4 F 20 C B...

Page 119: ...in following diagram of heating temperature Heater off Heater is off as shown in following diagram of heating temperature Other than heating mode Error occurred Forced thermostat off Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts 0 9 F 0 5 C Tr Ts Tr Ts Thon 0 9 F 0 5 C Combination zone Heat pump Heater Heat pump prohibition zone Heater A 4 F 20 C A 3 6 F 2 C 0 4 F ...

Page 120: ...3 3 17 Suenaga Takatsu ku Kawasaki 213 8502 Japan Jun 2016 Printed in Japan ...

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