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Fujitsu AOCG040LBTA, Service Instruction

The Fujitsu AOCG040LBTA user manual is an essential Service Instruction guide for operating your device smoothly. Download it for free from our website to access detailed instructions, troubleshooting tips, and helpful illustrations to maximize the potential of your Fujitsu AOCG040LBTA. Find everything you need to know effortlessly!

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CONTENTS

1. DESCRIPTION OF EACH CONTROL OPERATION

1. COOLING OPERATION.............................................................................................

3. DRY OPERATION......................................................................................................

2. HEATING OPERATION..............................................................................................

5. INDOOR FAN CONTROL...........................................................................................

4. AUTO CHANGEOVER OPERATION.........................................................................

6. OUTDOOR FAN CONTROL.......................................................................................

8. TIMER OPERATION CONTROL................................................................................

7. COMPRESSOR CONTROL........................................................................................

10. TEST OPERATION CONTROL..................................................................................

  9. ELECTRONIC EXPANSION VALVE CONTROL.......................................................

12. 4-WAY VALVE EXTENSION SELECT.......................................................................

11. PREVENT TO RESTART FOR 3 MINUTES (3 MINUTES ST)..................................

16. ECONOMY OPERATION........................................................................................... 

13. AUTO RESTART........................................................................................................

19. DRAIN PUMP OPERATION.......................................................................................

17. FRESH AIR CONTROL..............................................................................................

20. DEFROST OPERATION CONTROL..........................................................................

01-01
01-02
01-02
01-03
01-05
01-08
01-09
01-10
01-14
01-14

01-14
01-15

01-15
01-16

01-17

18. EXTERNAL ELECTRICAL HEATER CONTROL........................................................ 01-16

01-18

21. OFF DEFROST OPERATION CONTROL.................................................................. 01-20
22. VARIOUS PROTECTIONS......................................................................................... 01-21

01-14

14. MANUAL AUTO OPERATION.................................................................................... 01-15
15. COMPRESSOR PREHEATING.................................................................................. 01-15

01-16

2-1-2   WIRED REMOTE CONTROLLER DISPLAY (OPTION).....................................

2-1-1   RECEIVER UNIT AND  WIRED REMOTE CONTROLLER DISPLAY................

2-1   ERROR DISPLAY

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

2. TROUBLE SHOOTING

2-2   TROUBLE SHOOTING WITH ERROR CODE

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

2-3   TROUBLE SHOOTING WITH NO ERROR CODE

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

2-4   SERVICE PARTS INFORMATION

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

02-01
02-01
02-02

02-24

02-03

02-29

3-1-2   Procedures to change the Function Setting........................................................

3-1-1   INDOOR UNIT....................................................................................................

3-1   FUNCTION SETTING

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

3. APPENDING DATA

03-01
03-01
03-04

3-2-2   OUTDOOR UNIT................................................................................................

3-2-1   INDOOR UNIT....................................................................................................

3-2   Thermistor Resistance Values

................................................................................ 03-07

03-07
03-07

Summary of Contents for AOCG040LBTA

Page 1: ...SPLIT TYPE ROOM AIR CONDITIONER Models Indoor unit Outdoor unit AOCG040LBTA SERVICE INSTRUCTION R410A ARCG040LSTA SLIM DUCT type INVERTER ...

Page 2: ...0 01 14 01 14 01 14 01 15 01 15 01 16 01 17 18 EXTERNAL ELECTRICAL HEATER CONTROL 01 16 01 18 21 OFF DEFROST OPERATION CONTROL 01 20 22 VARIOUS PROTECTIONS 01 21 01 14 14 MANUAL AUTO OPERATION 01 15 15 COMPRESSOR PREHEATING 01 15 01 16 2 1 2 WIRED REMOTE CONTROLLER DISPLAY OPTION 2 1 1 RECEIVER UNIT AND WIRED REMOTE CONTROLLER DISPLAY 2 1 ERROR DISPLAY 2 TROUBLE SHOOTING 2 2 TROUBLE SHOOTING WITH ...

Page 3: ...R410A SLIM DUCT type INVERTER 1 DESCRIPTION OF EACH CONTROL OPERATION ...

Page 4: ... in Table1 However the maximum frequency is limited in the range shown in Fig 1 based on the indoor fan mode and the outdoor temperature If the room temperature is some degrees lower than a set temperature the compressor will be stopped A zone B zone C zone D zone E zone F zone Outdoor temperature Outdoor temperature Table 2 Limit of maximum speed based on outdoor temperature Outdoor temp zone Hi ...

Page 5: ...een 2 5 C to 3 C of the setting temperature the compressor frequency is controlled within the range shown in Table 3 Table 3 Compressor frequency range Minimum frequency Maximum frequency AOCG040LBTA 16rps 140rps The compressor frequency shall change according to the temperature set temperature and room temperature variation which the room temperature sensor of the indoor unit body has detected as...

Page 6: ...urns to Cooling 1 1 2 Fig 3 Outdoor temperature zone selection Cooling Autmatic dry Operation mode If it s Middle zone operation mode of indoor unit is selected as below 1 Same operation mode is selected as outdoor unit If outdoor unit is operating in Cooling Dry and Heating mode indoor unit will be operated by the same operation mode 2 Selected by the outdoor temperature If outdoor unit is operat...

Page 7: ...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 operation Middle zone NO Operation mode of outdoor unit Cooling or Dry YES NO Operation mode of outdoor unit Heating YES NO YES Outdoor temperature 25 C NO YES YES NO YES YES ...

Page 8: ... AUTO QUIET LOW MED HIGH while the indoor fan only runs When Fan mode is set at Auto it operates on MED Fan Speed 3 COOLING OPERATION Fig 5 Airflow change over Cooling AUTO When the room temperature rises When the 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 mode Med mode Low mode Switch the airfl...

Page 9: ... setting can not be changed it operates automatically as shown in Fig 6 Room temperature variation which the room temperature sensor of the indoor unit body has detected Compressor ON OFF Indoor fan Dry air flow S Lo OFF Fig 6 Indoor Fan Control 10 30 60 180 60 180 60 10 30 SEC Hi or setting fan mode Lo or setting fan mode 37 C 29 C 32 C 24 C Indoor heat exchanger temperature rises Indoor heat exc...

Page 10: ...ng except AUTO mode the indoor fan motor will run as shown in Fig 9 Factory setting Setting Description Function Number Setting Value Disable Enable 49 00 01 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 low speed ...

Page 11: ...as table 9 without relating to the compressor frequency Table 9 Outdoor fan speed after the defrost 1 Outdoor Fan Motor 2 Fan Speed AC Motor DC Motor AOCG040LBTA Following table shows the type of the outdoor fan motor The control method is different between AC motor and DC motor Table 7 Type of Motor AOCG040LBTA 1100rpm Cooling Heating AOCG040LBTA Y Z Zone Refer to Fig 8 rpm F G Dry 1050 870 720 5...

Page 12: ...ssor control at start up Time Time Time Time Time Frequency Frequency Frequency Frequency Frequency Frequency Frequency Frequency Frequency Frequency Frequency Time Time Time Time Time AOCG040LBTA 80sec 110sec 140sec 200sec 350sec 410sec Time Frequency Time 6 Frequency Time 6 3 LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE The minimum compressor frequency is limited by outdoor temperat...

Page 13: ...EMOTE CONTROLLER 1 ON OFF TIMER 2 PROGRAM TIMER 3 SLEEP TIMER The program timer allows the OFF timer and ON timer to be used in combination one 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 operat...

Page 14: ...ration In the cooling operation mode When the sleep timer is set the setting temperature is increased 1 C It increases the setting temperature another 1 C after 1 hour After that the setting temperature is not changed and the operation is stopped at the time of timer setting Ts 1 C 2 C 2 C 1 C 4 C 3 C Set 60min In the heating operation mode When the sleep timer is set the setting temperature is de...

Page 15: ...set up per day Use this timer function to set operating time for each day of the week Operation mode The operating time can be 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 Opera...

Page 16: ...fter the set day 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 3 TEMPERATURE SET BACK TIMER 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 ...

Page 17: ... the room temperature sensor detects The test operation mode is released if 60 minutes have passed after setting up the test operation With Wireless Remote Controller At the time when the air conditioner is switched from the cooling mode to heating mode the compressor is stopped and the 4 way valve is switched in 3 minutes later after the compressor stopped 12 4 WAY VALVE EXTENSION SELECT The most...

Page 18: ...ation was started and when the outdoor temperature rises to 7 C or greater preheating is ended 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 Table 13 Operation contents memorized when the power is interrupted Operation mode ...

Page 19: ...xternal electrical heater is operated as shown in Fig 13 17 FRESH AIR CONTROL 18 EXTERNAL ELECTRICAL HEATER CONTROL Fig 12 Fresh air control Fig 13 External electrical heater control Operation Stop Operation Stop Fan motor Indoor unit Fan motor for Fresh Air When the room temperature rises When the room temperature drops Ts Setting temperature Heater OFF Heater ON Heater OFF Ts 10 C Ts 1 C Ts 3 C ...

Page 20: ...s 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 OFF the FAILURE INDICA...

Page 21: ... operation time is less than 10 minutes the OFF number of the compressor is counted If any defrost operated the compressor OFF count is cleared Normal defrost Compressor integrating operation time Less than 40 minutes More than 40 minutes Does not operate Outdoor heat exchanger temp 17 C at outside air temp 10 C Outdoor heat exchanger temp Outside air temp 7 C or Outdoor heat exchanger temp 20 C a...

Page 22: ...me Maximum 15 minutes Defrost end Outdoor HEX temp Below 17 C Outdoor HEX temp Outside air temp Below 7 C or Outdoor HEX temp Below 20 C Integrating defrost Defrost Indicator Operation lamp 7 sec ON 2 sec OFF Defrost start Normal defrost Outside air temp 10 C Outside air temp 10 C Compressor OFF count 40 times Less than 10min Compressor integrating operation Over 240 min Outdoor heat exchanger tem...

Page 23: ...er Operation lamp 7 sec ON 2 sec OFF Outdoor heat exchanger temperature Over 16 C or Compressor ON time Over 15 minutes Defrost end 2 OFF DEFROST END CONDITION Release Condition Outdoor heat exchanger temperature sensor value is higher than 16 C or Compressor operation time has passed 15 minutes In heating operation the outdoor heat exchanger temperature is less than 4 C compressor continuous oper...

Page 24: ...sor is stopped and the indoor unit LED starts blinking AOCG040LBTA 104 C 101 C 110 C Table 18 Discharge temperature over rise prevension control Release temperature Temperature Temperature Temperature 2 CURRENT RELEASE CONTROL The compressor frequency is controlled so that the outdoor unit input current does not exceed the current limit value that was set up with the outdoor temperature The compre...

Page 25: ... outdoor fan motor are stopped and trouble display is performed 5 HIGH TEMPERATURE RELEASE CONTROL HEATING MODE Outdoor temperature Over than 10 C 2 or 12 C 1 Less than 10 C 2 or 12 C 1 1 When the temperature rises 2 When the temperature drops 4 C 7 C 13 C Temperature Temperature On heating mode the compressor frequency is controlled as following based on the detection value of the indoor heat exc...

Page 26: ...2 TROUBLE SHOOTING R410A SLIM DUCT type INVERTER ...

Page 27: ...or Outdoor unit Heat Ex liquid temp thermistor error Outdoor temp thermistor error 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Continuous Continuous 5 times 9 times 9 times 7 times Compressor rotor position detection error permanent stop Outdoor unit fan motor error Continuous 4 times 9 times Continuous 9 times 9 times 4 way valve error Continuous 1 times 10 times Discharge temp error Tr...

Page 28: ...orized error 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 ...

Page 29: ...ta 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 242V AC220V 10 appears at outdoor unit terminal L N When the indoor unit cannot receive the serial signal from Outdoor unit more than 2minutes after power ON or the indoor unit...

Page 30: ...r unit If there is an abnormal condition correct 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 242V AC220V 10 appears at outdoor unit terminal L N Check Point 4 Check serial sign...

Page 31: ...erminal between Wired Remote 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 02 05 l If it is DC12V 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 Controlle...

Page 32: ...capacity of the connected indoor units If abnormal condition is found correct it by referring to Installation Manual or Design Technical Manual 02 06 Trouble shooting 4 INDOOR UNIT Error Method In Indoor unit capacity error Check Point 2 Replace Main PCB If Check Point 1 do not improve the symptom replace Main PCB of Outdoor unit Indicate or Display Outdoor Unit No indication Indoor Unit Operation...

Page 33: ...onic 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 Rewriting shall be done upon erasing the all contents...

Page 34: ...icator PCB failure Check 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 02 08 Indicate or Display Outdoor Unit No ...

Page 35: ...T Error Method Indoor room thermistor error Check Point 3 Check voltage of Controller PCB DC5 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 H E MID Thermistor Room Temp Thermistor ARCG040LSTA BLACK BLACK 1 2 1 2 1 1 2 2 CN5 CN8 GRAY GRAY 1 2 CN7 02 09 DC Thermistor Characteristics Rough value I...

Page 36: ...5 0V Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor DC5 0V DC Thermistor Characteristics Rough value If Thermistor is either open or shorted replace it and reset the power Check Point 2 Remove connector and check Thermistor resistance value Resistance Value Temperature C Resistance Value Temperature C 30 20 10 5 0 5 10 15 20 25 30 35 40 45 50 55 60 63 C C 10...

Page 37: ...r 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 condition that actual frequency of Indoor Fan is below 1 3 of target frequency is continued more than 56 seconds Check Point 4 Replace Controller PCB If Check Point 1 3 do not improve the symptom repl...

Page 38: ...ailure 2 Shorted connector wire 3 Controller PCB failure 4 Drain pump failure 5 Hose clogging Check Point 2 Check Connector CN 9 Wire Check loose contact of CN9 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 D...

Page 39: ...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 Rewriting shall be done upon erasing the all contents There is a lim...

Page 40: ...ause at Indoor 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 near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete ins...

Page 41: ...ck Outdoor Fan Heat Exchanger Is there anything obstructing the air distribution circuit Is there any clogging of Outdoor Heat Exchanger Is the Fan rotating by hand when operation is off If the Fan Motor is locked replace it Check Outdoor Fan Motor Refer to Trouble shooting 19 If the Fan Motor is failure replace it Check Point 4 Check Compressor PARTS INFORMATION 2 Check Compressor If Check Point ...

Page 42: ...Point 2 Remove connector and check Thermistor resistance value Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Main PCB 02 16 THERMISTOR DISCHARGE THERMISTOR PIPE THERMISTOR OUTDOOR BLACK BLACK CN70 CN71 1 2 3 4 1 2 3 4 1 2 3 1 2 3 BROWN Thermistor Characteristics Approx ...

Page 43: ...g reset the power Check Point 2 Remove connector and check Thermistor resistance value Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Main PCB 02 17 Resistance Value k Temperature C Resistance Value k Temperature C 30 20 10 0 10 20 30 40 50 60 70 80 95 6 50 3 27 8 16 1 9...

Page 44: ...power Check Point 2 Remove connector and check Thermistor resistance value Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Main PCB 02 18 Thermistor Characteristics Approx value If Thermistor is either open or shorted replace it and reset the power 50 Resistance Value k 4...

Page 45: ... Compressor failure 5 Main PCB failure Check if connector is removed Check if the terminal connection is loose Check erroneous connection Check if cable is open Upon correcting the removed connector or mis wiring reset the power Check Point 2 Check Outdoor fan Heat exchanger Is there anything obstructing the air distribution circuit Is there any clogging of Outdoor Heat Exchanger Is the Fan rotati...

Page 46: ...ble is open Upon correcting the removed connector or mis wiring reset the power Refer to PARTS INFORMATION 2 For Compressor Terminal Main PCB While running the compressor if the detected rotor location 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 ...

Page 47: ... unit circuit diagram and the voltage Measure 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 moto...

Page 48: ...ndoor unit Isn t it fallen off the holder Is there a cable pinched Check characteristics of thermistor Refer to Trouble shooting 7 8 If defective replace the thermistor Indoor unit Controller PCB Heat exchanger temperature thermistor Room temperature thermistor 4 way valve When the indoor heat exchanger temperature is compared with the room temperature and either following condition is detected co...

Page 49: ...de was closed open the 3 way valve gas side and check operation 02 23 Check Point 1 Check if 2 way valve liquid side is open If the 2 way valve liquid side was closed open the 2 way valve liquid side and check operation OK Detective Actuators Detective details Forecast of Cause Trouble shooting 21 OUTDOOR UNIT Error Method Discharge temp error 1 3 way valve not opened 2 EEV defective strainer clog...

Page 50: ...e correct power supply and replace Varistor Upon checking the normal power supply replace Varistor OK Check Fuse of between of Terminal and Power supply PCB Indoor unit If Fuse is open check if the wiring between Terminal and Power supply PCB Indoor unit is loose and replace Fuse Check Point 4 Replace Power supply PCB Indoor unit If Check Point 1 3 do not improve the symptom replace Power supply P...

Page 51: ...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 near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check the voltage of p...

Page 52: ...it 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 electric equipment that may cause harmonic wave Check the complete insulation of grounding If the symptom does not c...

Page 53: ...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...

Page 54: ...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...

Page 55: ...ked 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 Compressor p...

Page 56: ...mpressor Check terminal connection 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 02 30 R S WHITE C BLACK Terminal cover opened RED AOCG040LBTA Resistance Value 0 7 at 25 C AOCG040LBTA ...

Page 57: ...between Inlet and Outlet Strainer normally does not have temperature difference between inlet and outlet as shown in but if there is a difference as shown in there is a possibility of inside clogged In this case replace Strainer Check Point 2 Check Coil of EEV Yellow Brown Orange Red Blue Brown White Red Read wire 46 4 Resistance value Check Point 4 Check voltage from Main PCB Check Point 3 Check ...

Page 58: ...tage Vm No function No function Ground terminal GND Control voltage Vcc Speed command Vsp 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 Check Point 2 Check resistance of indoor fan motor Refer to below Circuit ...

Page 59: ...3 APPENDING DATA SLIM DUCT type INVERTER R410A ...

Page 60: ...alue Standard Long interval Short interval No indication 11 00 01 02 03 1 1 Setting the Filter sign The indoor unit has a sign to inform the user that it is time to clean the filter Select the time setting for the filter sign display interval in the table below according to 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 i...

Page 61: ...control Warmar control 30 00 01 02 03 Depending on the installed environment the room temperature sensor may require a correction The settings may be selected as shown in the table below When using floor console installation change the setting value to 01 When using floor console installation change the setting value to 01 1 5 Setting the Auto restart Enable or disable automatic system restart aft...

Page 62: ...ture sensor If setting value is 01 room temperature is controlled by either indoor unit temperature sensor or remote control unit sensor 1 7 Setting the 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 1 8 Setting the External input control Operation Stop mod...

Page 63: ...ignal to indoor unit Indoor unit run the setting 7 Press the button to cancel the function setting mode 8 After completing the FUNCTION SETTING be sure to turn of the power and turn it on again CAUTION After turning off the power wait 10 seconds or more before turning on it again The FUNCTION SETTING doesn t become effective if it doesn t do so 4 Press the buttons to select the Setting Value Press...

Page 64: ...emote control unit resets to signal code A when the batteries in the remote control unit are replaced If you use a signal code other than signal code A reset the signal code after replacing the batteries If you do not know the air conditioner signal code setting try each of the signal codes until you find the code which operates the air conditioner CAUTION 1 Press the button until only the clock i...

Page 65: ...a few seconds until the setting value stops flashing If the setting value display changes or if is displayed when the flashing stops the setting value has not been set correctly An invalid setting value may have been selected for the indoor unit 6 Repeat steps 2 to 5 to perform additional settings Press the SET TEMP buttons and FAN button simultaneously again for more than 5 seconds to cancel the ...

Page 66: ... 80 0 1013 1 729 1 531 6 392 3 292 9 221 1 168 6 129 8 100 9 79 1 62 5 49 8 40 0 32 4 26 3 21 6 17 8 14 8 12 3 10 3 8 7 7 4 6 3 5 4 4 6 4 0 3 4 3 0 2 6 2 3 2 0 0 06 0 09 0 12 0 16 0 21 0 28 0 36 0 46 0 57 0 71 0 86 1 03 1 23 1 43 1 65 1 88 2 11 2 34 2 57 2 79 3 00 3 19 3 37 3 54 3 69 3 83 3 96 4 07 4 17 4 26 4 33 95 6 68 9 50 3 37 2 27 8 21 0 16 1 12 4 9 6 7 6 6 0 4 8 3 8 3 1 2 5 2 1 1 7 1 4 1 2 1...

Page 67: ...3 3 17 Suenaga Takatsu ku Kawasaki 213 8502 Japan Jun 2016 Printed in Japan ...

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