Fujitsu ASYG09LECA Service Instruction
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Fujitsu ASYG09LECA Service Instruction

Fujitsu ASYG09LECA Service Instruction

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SERVICE
INSTRUCTION
R410A
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
INVERTER
Models
Indoor unit
ASYG07LECA
ASYG09LECA
ASYG12LECA
ASYG14LECA
type
Outdoor unit
AOYG07LEC
AOYG09LEC
AOYG12LEC
AOYG14LEC

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  • Page 1 SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AOYG07LEC ASYG07LECA AOYG09LEC ASYG09LECA ASYG12LECA AOYG12LEC ASYG14LECA AOYG14LEC R410A...

  • Page 2: Table Of Contents

    CONTENTS 1. DESCRIPTION OF EACH CONTROL OPERATION 1. COOLING OPERATION....................01-01 2. HEATING OPERATION....................01-02 3. DRY OPERATION......................01-03 4. AUTO CHANGEOVER OPERATION................01-04 5. INDOOR FAN CONTROL....................01-05 6. OUTDOOR FAN CONTROL..................01-07 7. LOUVER CONTROL..................... 01-08 8. COMPRESSOR CONTROL..................01-09 9.

  • Page 3: Description Of Each Control Operation

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

  • Page 4: Cooling Operation

    Outdoor Indoor fan mode Outdoor temperature rises Outdoor temp. zone Quiet temperature drops ASYG07LECA A zone 79rps 61rps 52rps 37rps 36°C ASYG09LECA B zone 79rps 61rps 52rps 37rps A zone C zone 79rps 61rps 52rps 37rps 34°C D zone 52rps...

  • Page 5: Heating Operation

    2. HEATING OPERATION A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor. * If the room temperature is lower by 3°C than a set temperature, the compressor operation frequency will attain to maximum performance.

  • Page 6: Dry Operation

    3. DRY OPERATION 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 shown in the Table 5. However, after the compressor is driven, the indoor unit shall run at operation frequency of 64rps (07/09LECA), 61rps (12/14LECA), for a minute.

  • Page 7: Auto Changeover Operation

    4. AUTO CHANGEOVER OPERATION When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum mode from among the Heating, Cooling, Dry and Monitoring modes. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set between 18°C 30°C...

  • Page 8: Indoor Fan Control

    5. INDOOR FAN CONTROL 1. Fan speed ( Table 6 : Indoor fan speed ) Speed (rpm) Operation mode Air flow mode ASYG07/09/12LECA ASYG14LECA Powerful 1490 1450 Heating 1440 1400 1370 1360 1200 1230 1050 Quiet Cool air prevention S-Lo 1450 1450 Powerful...
  • Page 9 5. HEATING OPERATION Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature, as shown in Fig. 5 On the other hand, if switched in [Hi] [Quiet], the indoor motor will run at a constant airflow of [Heat] operation modes Quiet, Lo, Me, High, as shown in Table 6.

  • Page 10: Outdoor Fan Control

    900/ 650/ 580/ 470 730/ 470 230/ 200 860/ 780/ 720/ 680/ 470 860/ 470/ 330 900/ 760/ 720/ 680/ 470 760/ 470 ASYG09LECA 330/ 280 230/ 200 860/ 780/ 720/ 680/ 470 860/ 470/ 330 900/ 760/ 720/ 680/ 470 760/ 470...

  • Page 11: Louver Control

    7. LOUVER CONTROL 1. VERTICAL LOUVER CONTROL (Function Range) Each time the button is pressed, the air direction range will change as follow: Fig.9 : Air Direction Range Types of Air flow Direction Setting: : During Heating/ Cooling/ Dry modes The Remote Controller's display does not change.

  • Page 12: Compressor Control

    8. COMPRESSOR CONTROL 1. OPEARTION FREQUENCY RANGE The operation frequency of the compressor is different based on the operation mode as shown in the Table 12. (Table 12 : Compressor frequency range) Cooling / Dry Heating Minimum Maximum Minimum Maximum ASYG07/ 09LECA 22rps 79rps...

  • Page 13: Timer Operation Control

    9. TIMER OPEARTION CONTROL 9-1 WIRELESS REMOTE CONTROLLER The Table 14 shows the available timer setting based on the product model. ( Table 14 : Timer Setting ) WEEKLY TIMER ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER ASYG07/09/12/14LECA 1.
  • Page 14 3. SLEEP TIMER If the sleep is set, the room temperature is monitored and the operation is stopped automatically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time ON. In the cooling operation mode When the sleep timer is set, the setting temperature is increased 1°C.
  • Page 15 9-2 WIRED REMOTE CONTROLLER (OPTION) The Table15 shows the available timer setting based on the product model. ( Table15 : Timer Setting ) ON TIMER / OFF TIMER WEEKLY TIMER TEMPERATURE SET BACK TIMER ASYG07/09/12/14LECA ON TIMER / OFF TIMER Same to 9-1 1.ON TIMER / OFF TIMER and shown in those.

  • Page 16: Electronic Expansion Valve Control

    ( Table16 : The pulse range of the electronic expansion valve control ) Operation mode Pulse range ASYG07LECA Cooling / Dry mode ASYG09LECA Between 60 to 480 pulses. ASYG12LECA ASYG14LECA Heating mode The expansion valve is set at 480 pulses 110seconds after the compressor had stopped.

  • Page 17: Auto Restart

    14. AUTO RESTART 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 started with the memorized operation contents. When the power is interrupted and recovered during timer operation, since the timer operation time is shifted by the time the power was interrupted, an alarm is given by blinking (7 sec ON/2 sec OFF) the indoor unit body timer lamp.

  • Page 18: Compressor Preheating

    17. COMPRESSOR PREHEATING When the outdoor heat exchanger temperature is lower than 5°C and the all operation has been stopped for 30 minutes, power is applied to the compressor and the compressor is heated. (By heating the compressor, warm air is quickly discharged when operation is started.) When operation was started and when the outdoor temperature rises to 7°C or greater,...

  • Page 19: Powerful Operation

    21. POWERFUL 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 Table22. (Table22) Powerful operation COMPRESSOR FREQUENCY Maximum FAN CONT. MODE Powerful SETTING LOUVER Cooling/ Dry : 3, Heating : 5 Release Condition is as follows.

  • Page 20: Defrost Operation Control

    22. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts as shown in the following Table 23. (Table 23 : Condition of starting Defrost Operation) Compressor integrating operation time Normal defrost Less than 25 minutes More than 25 minutes Outdoor heat exchanger temp.
  • Page 21 3. Defrost Flow Chart The defrosting shall proceed by the integrating operation time, outdoor temperature and outdoor heat exchanger temperature as follows. Heating operation start : Compressor ON (Not defrosted for 10 minutes) Normal defrost Integrating defrost Intermittent operation Continuous operation utside air temp.

  • Page 22: Off Defrost Operation Control

    23. OFF DEFROST OPEARTION CONTROL When operation stops in the [Heating operation] mode, if frost is adhered to the outdoor unit heat exchanger, the defrost operation will proceed automatically. In this time, if indoor unit operation lamp flashes slowly (7 sec ON / 2 sec OFF), the outdoor unit will allow the heat exchanger to defrost, and then stop.

  • Page 23: Various Protections

    ( Table 26 : Current release operation value / Release value ) [ Heating ] [ Heating ] [ Heating ] ASYG07LECA ASYG12LECA ASYG14LECA ASYG09LECA OT (Control / Release) OT (Control / Release) OT (Control / Release) 5.5A / 5.0A 5.5A / 5.0A 7.0A / 6.5A 17°C...
  • Page 24 3. ANTIFREEZING CONTROL (Cooling and Dry mode) The compressor frequency is decrease on cooling & dry mode when the indoor heat exchanger temperature sensor detects the temperature lower than Temperature . Then, the anti-freezing control is released when it becomes higher than Temperature . (Table 27 : Anti-freezing Protection Operation / Release Temperature) Outdoor temperature Temperature...

  • Page 25: Trouble Shooting

    R410A WALL MOUNTED type INVERTER 2 . TROUBLE SHOOTING...

  • Page 26: Error Display

    2. TROUBLESHOOTING 2-1 ERROR DISPLAY 2-1-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY Please refer the flashing pattern as follows. Indoor Unit : ASYG07/ 09/ 12/ 14LECA The OPERATION, TIMER and ECONOMY lamps operate as follows according to the error contents. Indoor Unit Display Wired Remote Trouble...

  • Page 27: Wired Remote Controller Display (Option)

    2-1-2 WIRED REMOTE CONTROLLER DISPLAY (OPTION) 1. SELF - DIAGNOSIS When " Er " in Temperature Display is displayed, inspection of the air conditioning system is necessary. Please consult authoilzed servise personnel. Unit number (usually 0) Error code SU MOTU WETH FR SA ex.

  • Page 28: Trouble Shooting With Error Code

    2-2 TROUBLE SHOOTING WITH ERROR CODE Trouble shooting 1-1 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Serial communication error (Serial Reverse Transfer Error) Detective details: Detective Actuators: When the indoor unit cannot receive the serial signal from Outdoor unit Outdoor unit Main PCB more than 2minutes after power ON, or the indoor unit cannot receive Outdoor unit fan motor...
  • Page 29 Trouble shooting 1-2 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Serial communication error (Serial Forward Transfer Error) Detective details: Detective Actuators: When the outdoor unit cannot receive the serial signal from Indoor unit Indoor unit Controller PCB more than 10seconds.
  • Page 30 Trouble shooting 2 Indicate or Display: INDOOR UNIT Error Method: Remote controller communication Refer to error code table. error Detective details: Detective Actuators: When the indoor unit cannot receive the signal from Wired Remote Control Indoor unit Controller PCB more than 1minute during normal operation. Wired remote control Forecast of Cause: 1.
  • Page 31 Trouble shooting 3 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Indoor unit main PCB error Detective details: Detective Actuators: When power is on and there is some below case. Indoor unit Controller PCB 1. When model information of EEPROM is incorrect. 2.
  • Page 32 Trouble shooting 4 Indicate or Display: INDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. Manual auto switch error Detective Actuators: Detective details: Indoor unit Controller PCB When the Manual Auto Switch becomes ON for consecutive 60 or more seconds.
  • Page 33 Indicate or Display: Trouble shooting 5 INDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. Room temperature sensor error Detective Actuators: Detective details: Indoor unit Controller PCB When Room Temperature Thermistor open or short-circuit is detected. Room temperature thermistor Forecast of Cause : 1.
  • Page 34 Trouble shooting 6 Indicate or Display: INDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. Indoor unit Heat Ex. sensor error Detective Actuators: Detective details: Indoor unit Controller PCB When Heat Ex. Temperature Thermistor open or short-circuit is detected. Heat Ex.
  • Page 35 Trouble shooting 7 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Indoor unit fan motor error Detective Actuators: Detective details: When the condition that actual frequency of Indoor Fan is Indoor unit Controller PCB below 1/3 of target frequency is continued more than 56 seconds. Indoor unit Fan motor Forecast of Cause: 1.
  • Page 36 Trouble shooting 9 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor unit main PCB error Detective details: Detective Actuators: Access to EEPROM failed due to some cause after outdoor unit started. Outdoor unit Main PCB Forecast of Cause: 1.
  • Page 37 Trouble shooting 10 Indicate or Display: OUTDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. PFC circuit error Detective Actuators: Detective details: When inverter output DC voltage is higher than 415V for over 3 seconds, Outdoor unit Main PCB the compressor stops.
  • Page 38 Trouble shooting 11 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. IPM error Detective details: Detective Actuators: When more than normal operating current to IPM in Main PCB flows, Outdoor unit Main PCB the compressor stops. Compressor After the compressor restarts, if the same operation is repeated within 40sec, the compressor stops again.
  • Page 39 Trouble shooting 12 Indicate or Display: OUTDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. Discharge thermistor error Detective details: Detective Actuators: When Discharge pipe temperature thermistor open or short-circuit Outdoor unit Main PCB is detected at power ON or while running the compressor. Discharge pipe temperature thermistor Forecast of Cause : 1.
  • Page 40 Trouble shooting 13 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor unit Heat Ex. sensor error Detective details: Detective Actuators: Outdoor unit Main PCB When Heat exchanger temperature thermistor open or Heat exchanger temperature thermistor short-circuit is detected at power ON or while running the compressor.
  • Page 41 Trouble shooting 14 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor thermistor error Detective details: Detective Actuators: Outdoor unit Main PCB When Outdoor temperature thermistor open or short-circuit is Outdoor temperature thermistor detected at power ON or while running the compressor. Forecast of Cause : 1.
  • Page 42 Trouble shooting 15 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Current sensor error Detective Actuators: Detective details: When Input Current Sensor has detected 0A, while Inverter Compressor is Outdoor unit Main PCB operating at higher than 56rps, after 1minute upon starting the Compressor. (Except during the defrost operation) Forecast of Cause : 1.
  • Page 43 Trouble shooting 16 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Trip detection Detective details: Detective Actuators: "Protection stop by overcurrent generation after inverter compressor start Outdoor unit Main PCB processing completed'' generated consecutively 10 times. Compressor * The number of generations is reset if the start-up of the compressor succeeds.
  • Page 44 Trouble shooting 17 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Compressor motor control error Detective details: Detective Actuators: If the detected rotor location is out of phase with actual rotor location Outdoor unit Main PCB more than 90°, the compressor stops.
  • Page 45 Trouble shooting 18 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor unit fan motor error Detective Actuators: Detective details: When outdoor fan rotation speed is less than 100rpm in 20 seconds Outdoor unit Main PCB after fan motor starts, fan motor stops.
  • Page 46 Trouble shooting 19 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. 4-way valve error Detective Actuators: Detective details: When the indoor heat exchanger temperature is compared with Indoor unit Controller PCB the room temperature, and either following condition is detected Heat Ex.
  • Page 47 Trouble shooting 20 Indicate or Display: OUTDOOR UNIT Error Method: INDOOR UNIT Discharge temperature error Refer to error code table. Detective details: Detective Actuators: Outdoor unit Main PCB "Protection stop by "discharge temperature 110degC during compressor operation"" generated 2 times within 24 hours. Discharge temperature thermistor Forecast of Cause : 1.

  • Page 48: Trouble Shooting With No Error Code

    2-3 TROUBLE SHOOTING WITH NO ERROR CODE Forecast of Cause: Trouble shooting 21 1. Power supply failure 2. External cause Indoor Unit - No Power 3. Electrical components defective Check Point 1 : Check Installation Condition Isn’t the breaker down? Check loose or removed connection cable.
  • Page 49 Forecast of Cause: Trouble shooting 22 1. Power supply failure 2. External cause Outdoor Unit - No Power 3. Electrical Components defective Check Point 1 : Check Installation Condition Isn’t the breaker down? Check loose or removed connection cable. >>If abnormal condition is found, correct it by referring to Installation Manual or Data &...
  • Page 50 Forecast of Cause: Trouble shooting 23 1. Setting/ Connection failure 2. External cause No Operation (Power is ON) 3. Electrical component defective Check Point 1 : Check indoor and outdoor installation condition Indoor Unit - Check incorrect wiring between Indoor Unit - Remote Control. Or, check if there is an open cable connection.
  • Page 51 Forecast of Cause: Trouble shooting 24 1. Indoor Unit error 2. Outdoor Unit error No Cooling / No Heating 3. Effect by surrounding environment 4. Connection pipe / Connection wire failure 5. Refrigeration cycle failure Check Point 1 : Check Indoor unit Does Indoor unit Fan run on High fan? Is Air filter dirty? Is Heat exchanger clogged?
  • Page 52 Forecast of Cause : Trouble shooting 25 1. Abnormal installation (Indoor/ Outdoor) Abnormal Noise 2. Fan failure (Indoor/ Outdoor) 3. Compressor failure (Outdoor) Diagnosis method when abnormal noise is occurred Abnormal noise is coming from Indoor unit. Abnormal noise is coming from Outdoor unit. (Check and correct followings) (Check and correct followings) Is Main unit installed in stable condition?

  • Page 53: Service Parts Information

    2-4 SERVICE PARTS INFORMATION SERVICE PARTS INFORMATION 1 Compressor Diagnosis method of Compressor ( If Outdoor Unit LED displays Error, refer to Trouble shooting ) Abnormal noise Stops soon after starting up Does not start up Check if vibration noise by Is there open or loose connection Is there open or loose connection loose bolt or contact noise...
  • Page 54 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check Connection Check terminal connection of Compressor (loose or incorrect wiring) Terminal cover opened Terminal cover opened C(W) (RED) (BLACK) (WHITE) R(U) S(V) (RED) (WHITE) (BLACK) AOYG07/09LEC AOYG12/14LEC Check Point 2 : Check Winding Resistance Check winding resistance of each terminal If the resistance value is 0 or infinite, replace Compressor.
  • Page 55 SERVICE PARTS INFORMATION 3 Outdoor unit Electronic Expansion Valve ( EEV ) Check Point 1 : Check Connections Check connection of connector (CN40) ( Loose connector or open cable ) EXPANSION VALVE COIL BLUE ORANGE CN40 YELLOW WHITE Check Point 2 : Check Coil of EEV Check Point 3 : Check Voltage from Main PCB.
  • Page 56 SERVICE PARTS INFORMATION 4 Indoor unit fan motor Check Point 1 : Check rotation of Fan 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.

  • Page 57: Appending Data

    R410A WALL MOUNTED type INVERTER 3 . APPENDING DATA...

  • Page 58: Function Setting

    3-1. FUNCTION SETTING 3-1-1 INDOOR UNIT Follow the instructions in the Local Setup Procedure, which is supplied with the remote control, in accordance with the installed condition. After the power is turned on, perform the Function Setting on the remote control. The settings may be selected between the following two: Function Number or Setting Value.
  • Page 59 1-4. Setting the Auto Restart Enable or disable automatic system restart after a power outage. Factory setting) Setting Description Function Number Setting Value 1-5. Indoor room temperature sensor switching function (Only for Wired remote controller) The following settings are needed when use the control by Wired remote controller temperature sensor.

  • Page 60: Procedures To Change The Function Setting For Wireless Rc

    3-1-2 Procedures to change the Function Setting for wireless RC This procedure changes to the function settings used to control the indoor unit according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. After the power is turned on, perform the "FUNCTION SETTING" according to the installation conditions using the remote controller.
  • Page 61 Selecting the Remote Controller Signal Code (1) Press the START/STOP( ) button until only the clock is displayed on the remote controller display. (2) Press the MODE button for at least 5 seconds to display the current signal code. (initially set to (3) Press the SET TEMP.( ) ( ) buttons to change the signal code between Match the code on the display to the air conditioner signal code.

  • Page 62: Thermistor Resistance Values

    3-2. Thermistor Resistance Values 3-2-1 INDOOR UNIT Room temperature thermistor Indoor heat exchanger thermistor Resistance(k ) Voltage(V) Resistance(k ) Voltage(V) Temp (°C) Temp (°C) -10.0 58.2 0.73 -30.0 1131.9 0.21 -5.0 44.0 0.93 -25.0 804.5 0.29 33.6 1.15 -20.0 579.6 0.40 25.9 1.39...
  • Page 63 1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan August 2011 Printed in Japan...

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