Instruction/ maintenance manual of the product ASU12RL2 Fujitsu
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SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED type Models Indoor unit Outdoor unit INVERTER SERVICE INSTRUCTION R410A ASU09RL2 ASU12RL2 AOU09RL2 AOU12RL2.
CONTENTS 1. DESCRIPTION OF EACH CONTROL OPERATION 1. COOLING OPERATION................................................................................................ 3. DRY OPERATION....................................................................
3. APPENDING DATA 3-1 FUNCTION SETTING................................................................................................. 3-1-1 INDOOR UNIT..................................................................................................
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1 . DESCRIPTION OF EACH CONTROL OPERATION R410A WALL MOUNTED type INVERTER.
( Fig.1 : Outdoor temperature zone ) 1. COOLING 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.
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.
4. AUTO CHANGEOVER OPERATION 01-03 (Fig. 3 : Operation flow chart in Auto changeover) START Room temp. Room temp. >Ts+2°C (4°F) ? COOLING OPERATION HEATING OPERATION YES YES NO NO NO NO YES YES T.
5. INDOOR FAN CONTROL The airflow can be switched in 5 steps such as Auto, Quiet, Lo, Me, Hi, while the indoor fan only runs. When fan mode is set at [Auto], it operates on [Me] fan Speed. 01-04 2. FAN OPERATION 3. COOLING OPERATION Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature, as shown in Fig4.
The maximum value of the indoor fan speed is set as shown in Fig.6 based on the detected temperature by the indoor heat-exchanger sensor on heating mode. ( Fig.6 : Cool air prevension control ) 01-05 5. HEATING OPERATION Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature, as shown in Fig.
6. OUTDOOR FAN CONTROL ( Table 9 : Outdoor fan speed ) ( Fig.8 : Outside air temperature zone selection ) Refer to Fig.8 01-06 1. Outdoor Fan Motor 2. Fan Speed Following table shows the type of the outdoor fan motor. The control method is different between AC motor and DC motor.
7. LOUVER CONTROL 1. VERTICAL LOUVER CONTROL 3. SWING OPERATION Each time the button is pressed, the air direction range will change as follow: (Function Range) 01-07 The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.
8. COMPRESSOR CONTROL 01-08 1. OPEARTION FREQUENCY RANGE The operation frequency of the compressor is different based on the operation mode as shown in the Table 11.
9. TIMER OPEARTION CONTROL 1. OPEARTION FREQUENCY RANGE The Table 13 shows the available timer setting based on the product model. ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER ASU09RL2 ASU12RL2 OFF timer : When the clock reaches the set time, the air conditioner will be turned off.
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.
01-11 The compressor won't enter operation status for 2 minutes and 20 seconds after the compressor is stopped, even if any operation is given. At the time when the air conditioner is switched fr.
01-12 14. FORCED COOLING OPERATION (TEST OPERATION) Forced cooling operation is started when press MANUAL AUTO button for 10 seconds or more. During the forced cooling operation, it operates regardless of room temperature sensor. Operation lamp and Timer lamp blink at the same time during the forced cooling operation.
01-13 18. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts as shown in the following Table 18. 2. CONDITION OF THE DEFROST OPERATION COMPLETION Release Condition Outdoor heat exchanger temperature sensor value is higher than +16°C (60.
01-14 Outdoor fan : OFF Compressor speed : 0 rps 4-way valve : OFF Compressor speed : 90rps 3. Defrost Flow Chart The defrosting shall proceed by the integrating operation time, outdoor temperature and outdoor heat exchanger temperature as follows. (Not defrosted for 10 minutes) Heating operation start : Compressor ON Outdoor HEX temp.
19. OFF DEFROST OPEARTION CONTROL 01-15 1. OFF DEFROST OPERATION CONDITION When operation stops in the [Heating operation] mode, if frost is adhered to the outdoor unit heat exchanger, the defrost operation will proceed automatically.
20. VARIOUS PROTECTIONS 1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas temperature.
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 .
2 . TROUBLE SHOOTING R410A W ALL MOUNTED type INVER TER.
2. TROUBLESHOOTING 02-01 2-1 ERROR DISPLAY Please refer the flashing pattern as follows. Indoor Unit : ASU09/ 12RL2 The Operation, Timer and Economy lamps operate as follows according to the error contents.
02-02 2-2 TROUBLE SHOOTING WITH ERROR CODE Trouble shooting 1-1 OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause: OK YES YES NO RED WHITE BLACK BLACK WHITE GREEN + - OK Serial communication error (Serial Reverse Transfer Error) Outdoor unit Main PCB 1.
02-03 Trouble shooting 1-2 INDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause: OK YES YES NO + - OK Serial communication error (Serial Forward Transfer Error) Indoor unit Controller PCB Indoor unit Fan motor 1. Connection failure 2.
Detective Actuators: Detective details: Forecast of Cause: Check Point 3 : Replace Controller PCB Check Point 2 : Check Indoor unit electric components YES YES NO Trouble shooting 2 INDOOR UNIT Error Method: Indoor unit PCB model information error Indoor unit Controller PCB 1.
02-05 Trouble shooting 3 INDOOR UNIT INDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : OK OK 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.
Trouble shooting 4 INDOOR UNIT INDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : Check Point 2 : Check Point 2 : Remove connector and check Thermistor resistance value Check Point 1 : Check connection of Connector Check Point 3 : Check Point 3 : Check voltage of Controller PCB (DC5.
Trouble shooting 5 INDOOR UNIT INDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : Check Point 2 : 62.9 102.1 131.4 170.7 223.3 295.1 Resistance Value (k ) Temperature OK OK OK 17.11 25.8 39.78 Resistance Value (k ) Temperature Indoor unit Heat Ex.
Trouble shooting 6 INDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause: Check Point 1 : Check rotation of Fan Check Point 2 : Check ambient temp. around motor OK OK OK Indoor unit fan motor error Indoor unit Controller PCB Indoor unit Fan motor 1.
Detective Actuators: Detective details: Forecast of Cause: Check Point 2 : Replace Main PCB YES YES NO Trouble shooting 7 OUTDOOR UNIT Error Method: Outdoor unit main PCB model information error or communication error Outdoor unit Main PCB 1. External cause (Noise, temporary open, voltage drop) 2.
Trouble shooting 8 INDOOR UNIT OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : OK OK OK OK PFC circuit error Outdoor unit Main PCB 1. External cause 2. Connector connection failure 3. Main PCB failure Check Point 2 : Check connection of Connector Check if connector is removed.
02-11 Detective Actuators: Detective details: Forecast of Cause : Check Point 1 : Replace Main PCB Outdoor unit Main PCB 1. Main PCB failure Change Main PCB. Trouble shooting 9 OUTDOOR UNIT Error Method: Trip terminal L error Indicate or Display: Refer to error code table.
T rouble shooting 10 INDOOR UNIT OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : Check Point 2 : Check Point 3 : 64.22 102.5 130.9 168.6 218.6 286.3 Resistance V alue (k ) T emperature OK OK OK OK 41.33 1.956 3.430 4.
T rouble shooting 1 1 OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : Check Point 2 : 6.129 9.775 12.47 16.05 20.80 27.21 Resistance V alue (k ) T emperature OK OK OK OK 3.947 0.61 15 0.8531 1.213 1.759 2.606 Resistance V alue (k ) T emperature Outdoor unit Heat Ex.
T rouble shooting 12 OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : Check Point 2 : 26.53 34.57 45.40 60.23 80.56 109.0 Resistance V alue (k ) T emperature OK OK OK OK 20.56 6.408 7.978 10.00 12.26 16.04 Resistance V alue (k ) T emperature Outdoor temp.
T rouble shooting 13 OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : Check Point 4 : Replace Main PCB YES NO OK Current sensor error Outdoor unit Main PCB Check Point 2 : Check connections of Outdoor Unit Electrical Components Check if connector is removed.
Trouble shooting 14 OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Outdoor unit Main PCB Compressor Trip detection 02-16 Indicate or Display: Refer to error code table. When more than normal operating current to IPM in Main PCB flows, the compressor stops.
Trouble shooting 15 OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : Check Point 2 : Check connection of around the Compressor components OK OK OK OK Check Point 3: Replace Main PCB Outdoor unit Main PCB Compressor Compressor rotor position detection error 1.
T rouble shooting 16 OUTDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause: Check Point 3 : Check Outdoor unit fan motor OK OK Outdoor unit fan motor error Outdoor unit Main PCB Outdoor unit Fan motor 1. Fan rotation failure 2.
Trouble shooting 17 INDOOR UNIT Error Method: Detective Actuators: Detective details: Forecast of Cause : OK OK OK OK 4-way valve error Indoor unit Controller PCB Heat Ex.
Trouble shooting 18 INDOOR UNIT OUTDOOR UNIT Error Method: Discharge temperature error 02-20 Indicate or Display: Refer to error code table. <Cooling operation> OK OK OK OK OK <Heating operat.
Trouble shooting 19 Forecast of Cause: OK OK Indoor Unit - No Power 1. Power supply failure 2. External cause 3. Electrical components defective Check Point 1 : Check Installation Condition Isn’t the breaker down? Check loose or removed connection cable.
Trouble shooting 20 Forecast of Cause: Check Point 3 : Check Electrical Components OK OK OK OK YES YES OK NO Check Point 1 : Check Installation Condition Outdoor Unit - No Power 1. Power supply failure 2. External cause 3. Electrical Components defective Isn’t the breaker down? Check loose or removed connection cable.
Trouble shooting 21 Forecast of Cause: Check Point 2 : Check external cause at Indoor and Outdoor (Voltage drop or Noise) Check Point 1 : Check indoor and outdoor installation condition OK OK OK OK No Operation (Power is ON) 1. Setting/ Connection failure 2.
Attention Trouble shooting 22 Forecast of Cause: Check Point 2 : Check Outdoor unit operation Check Point 1 : Check Indoor unit Check Point 3 : Check Site condition Check Point 5 : Check Refrigeration.
Trouble shooting 23 Forecast of Cause : Trouble shooting 24 Forecast of Cause: OK OK OK OK OK OK OK OK OK OK MPa MPa Abnormal Noise 1. Abnormal installation (Indoor/ Outdoor) 2. Fan failure (Indoor/ Outdoor) 3. Compressor failure (Outdoor) Diagnosis method when abnormal noise is occurred Abnormal noise is coming from Indoor unit.
SERVICE PARTS INFORMATION 1 MPa MPa Compressor Diagnosis method of Compressor ( If Outdoor Unit LED displays Error, refer to Trouble shooting ) Does not start up Is there open or loose connection cable? Check Main PCB, connection of Compressor, and winding resistance.
SERVICE P ARTS INFORMA TION 2 Check Point 1 : Check Connection Check Point 2 : Check Winding Resistance Check Point 3 : Replace Main PCB C S R Inverter Compressor 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 .
SERVICE P ARTS INFORMA TION 3 Check Point 2 : Check Coil of EEV Y ellow - Red Orange - Red Blue - Red White - Red Read wire 46 4 Resistance value Check Point 1 : Check Connections Check Point 5 : Check Opening and Closing Operation of V alve Check Point 3 : Check V oltage from Main PCB.
SERVICE PARTS INFORMATION 5 Check Point 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. Check Point 2 : Check resistance of Outdoor Fan Motor Refer to below.
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3 . APPENDING DATA R410A WALL MOUNTED type INVERTER.
03-01 3-1. FUNCTION SETTING 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.
03-02 ( Factory setting) Setting Description Function Number Setting Value Yes No 40 00 01 1-4. Setting the Auto Restart Enable or disable automatic system restart after a power outage. *Auto restart is an emergency function such as for power failure etc.
The remote controller resets to signal code when the batteries in the remote controller are replaced. If you use a signal code other than signal code , reset the signal code after replacing the batteries.
03-04 (2) Press the FAN button to proceed to setting the value. (Press the FAN button again to return to the function number selection.) STEP 2. Selecting the Function Number and Setting Value (5) Press the RESET button to cancel the function setting mode.
03-05 (1) Press the MODE button for at least 5 seconds to display the current signal code. (initially set to ). (3) Press the MODE button again. The signal code will be changed. (2) Press the SET TEMP.( ) ( ) button to change the signal code between .
-10.0 55.46 -30.0 977.6 -5.0 42.36 -25.0 713.2 0.0 32.67 -20.0 526.8 5.0 25.39 -15.0 392.1 10.0 19.91 -10.0 295.1 15.0 15.71 -5.0 223.3 20.0 12.5 0.0 170.7 25.0 10.0 5.0 131.4 30.0 8.051 10.0 102.1 35.0 6.52 15.0 79.81 40.0 5.316 20.0 62.9 45.0 4.354 0.
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1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan Mar. 2012 Printed in Japan.
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If you already are a holder of Fujitsu ASU12RL2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Fujitsu ASU12RL2.
However, one of the most important roles played by the user manual is to help in solving problems with Fujitsu ASU12RL2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Fujitsu ASU12RL2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
