Related Manuals for Fujitsu ASU09RL2
Summary of Contents for Fujitsu ASU09RL2
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Page 1: Wall Mounted
SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AOU09RL2 ASU09RL2 AOU12RL2 ASU12RL2 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......................01-02 4. AUTO CHANGEOVER OPERATION................01-03 5. INDOOR FAN CONTROL....................01-04 6. OUTDOOR FAN CONTROL..................01-06 7. LOUVER CONTROL..................... 01-07 8. COMPRESSOR CONTROL..................01-08 9. - Page 3 3. APPENDING DATA 3-1 FUNCTION SETTING....................03-01 3-1-1 INDOOR UNIT....................03-01 3-1-2 Procedures to change the Function Setting for wireless RC......03-03 3-2 Thermistor Resistance Values..................03-06 3-2-1 INDOOR UNIT....................03-06 3-2-2 OUTDOOR UNIT....................03-06...
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Page 5: Description Of Each Control Operation
R410A WALL MOUNTED type INVERTER 1 . DESCRIPTION OF EACH CONTROL OPERATION... -
Page 6: Cooling Operation
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. * If the room temperature is 2°C(4°F) higher than a set temperature, the compressor operation frequency will attain to maximum performance. -
Page 7: 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 (6°F) than a set temperature, the compressor operation frequency will attain to maximum performance. -
Page 8: 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 (64°F) 30°C (88°F) -
Page 9: Indoor Fan Control
5. INDOOR FAN CONTROL 1. Fan speed ( Table 6 : Indoor fan speed ) Speed (rpm) Operation mode Air flow mode ASU09RL2 ASU12RL2 Powerful 1420 1420 Heating 1360 1360 1290 1290 1120 1120 Quiet Cool air prevention S-Lo Powerful... - Page 10 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.
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Page 11: Outdoor Fan Control
6. OUTDOOR FAN CONTROL 1. Outdoor Fan Motor Following table shows the type of the outdoor fan motor. The control method is different between AC motor and DC motor. ( Table 8 : Type of Motor ) AC motor DC motor AOU09RL2 AOU12RL2 2. -
Page 12: 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.8 : Air Direction Range Types of Air flow Direction Setting: : During Cooling/Dry modes : During Heating The Remote Controller's display does not change. -
Page 13: 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 11. (Table 11 : Compressor frequency range) Cooling / Dry Heating Minimum Maximum Minimum Maximum AOU09RL2 80rps 18rps... -
Page 14: Timer Operation Control
( Table 13 : Timer Setting ) ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER ASU09RL2 ASU12RL2 1. OPEARTION FREQUENCY RANGE OFF timer : When the clock reaches the set time, the air conditioner will be turned off. Operation mode... - Page 15 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...
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Page 16: Prevent To Restart For 3 Minutes ( 3 Minutes St )
10. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST ) The compressor won't enter operation status for 2 minutes and 20 seconds after the compressor is stopped, even if any operation is given. 11. FOUR-WAY VALVE EXTENSION SELECT At the time when the air conditioner is switched from the cooling mode to heating mode, the compressor is stopped, and the four-way valve is switched in 2 minutes and 20 seconds later after the compressor stopped. -
Page 17: Forced Cooling Operation
14. FORCED COOLING OPERATION (TEST OPERATION) When FORCED COOLING OPERATION is set, the operation is controlled as shown in Table15. ( Table15 : FORCED COOLING OPERATION ) Forced cooling operation OPERATION MODE Cooling FAN CONT. MODE TIMER MODE SETTING TEMP. Room Temp is not controlled SETTING LOUVER Horizontal... -
Page 18: Defrost Operation Control
18. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts as shown in the following Table 18. (Table 18 : Condition of starting Defrost Operation) Compressor integrating operation time Normal defrost Less than 25 minutes More than 25 minutes (1.4°F) Outdoor heat exchanger temp. - Page 19 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.
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Page 20: Off Defrost Operation Control
19. 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 21: Various Protections
20. VARIOUS PROTECTIONS 1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas temperature. When the discharge temperature becomes higher than Temperature , the compressor frequency is decreased 20rps, and it continues to decrease the frequency for 20rps every 120 seconds until the temperature becomes lower than Temperature . - Page 22 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 22 : Anti-freezing Protection Operation / Release Temperature) Outdoor temperature Temperature...
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Page 23: Trouble Shooting
R410A WALL MOUNTED type INVERTER 2 . TROUBLE SHOOTING... -
Page 24: Error Display
2. TROUBLESHOOTING 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. Indoor Unit Display Trouble shooting Error Contents Economy Operation Timer (Green) (Green) -
Page 25: 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 the serial signal more than 15seconds during normal operation. - Page 26 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.
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Page 27: Indoor Unit Pcb Model Information Error
Trouble shooting 2 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Indoor unit PCB model information 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 28 Trouble shooting 3 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 29 Indicate or Display: Trouble shooting 4 INDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. Room temp. sensor error Detective details: Detective Actuators: Indoor unit Controller PCB When Room temperature thermistor open or short-circuit is detected. Room temperature thermistor Forecast of Cause : 1.
- Page 30 Trouble shooting 5 Indicate or Display: INDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. Indoor unit Heat Ex. middle temp. sensor error Detective Actuators: Detective details: When Heat Ex. temperature thermistor open or short-circuit is detected. Indoor unit Controller PCB Heat Ex.
- Page 31 Trouble shooting 6 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 32 Trouble shooting 7 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor unit main PCB model information error or communication error Detective details: Detective Actuators: When model information of EEPROM is incorrect at power ON. Outdoor unit Main PCB If the above operation is repeated 3 times, the compressor stops permanently.
- Page 33 Trouble shooting 8 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 34 Indicate or Display: Trouble shooting 9 OUTDOOR UNIT Error Method: Refer to error code table. Trip terminal L error Detective details: Detective Actuators: When the signal from FO terminal of IPM in Main PCB is "L"(=0V) Outdoor unit Main PCB while the compressor stops.
- Page 35 Trouble shooting 10 Indicate or Display: OUTDOOR UNIT Error Method: INDOOR UNIT Refer to error code table. Discharge temp. sensor 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 36 Trouble shooting 11 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor unit Heat Ex. liquid temp. 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 37 Indicate or Display: Trouble shooting 12 OUTDOOR UNIT Error Method: Refer to error code table. Outdoor temp. sensor 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 38 Trouble shooting 13 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Current sensor error Detective details: Detective Actuators: 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 39 Trouble shooting 14 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Trip detection 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.
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Page 40: Compressor Rotor Position Detection Error
Trouble shooting 15 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Compressor rotor position detection 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 41: Outdoor Unit Fan Motor Error
Trouble shooting 16 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 42: 4-Way Valve Error
Trouble shooting 17 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 43 Trouble shooting 18 Indicate or Display: OUTDOOR UNIT Error Method: INDOOR UNIT Discharge temperature error Refer to error code table. Detective details: Detective Actuators: "Protection stop by "discharge temperature 110degC during compressor Outdoor unit Main PCB Discharge temperature thermistor operation"" generated 2 times within 24 hours. Forecast of Cause : 1.
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Page 44: Trouble Shooting With No Error Code
2-3 TROUBLE SHOOTING WITH NO ERROR CODE Forecast of Cause: Trouble shooting 19 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 45 Forecast of Cause: Trouble shooting 20 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 46 Forecast of Cause: Trouble shooting 21 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 Are these Indoor Unit, Outdoor Unit, and Remote Control suitable model numbers to connect? >>...
- Page 47 Forecast of Cause: Trouble shooting 22 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 48 Forecast of Cause : Trouble shooting 23 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?
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Page 49: 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 50 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check Connection Check terminal connection of Compressor (loose or incorrect wiring) Terminal cover opened C(W) (BLACK) S(V) (WHITE) R(U) (RED) Check Point 2 : Check Winding Resistance Check winding resistance of each terminal If the resistance value is 0 or infinite, replace Compressor.
- Page 51 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 52 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.
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Page 54: Appending Data
R410A WALL MOUNTED type INVERTER 3 . APPENDING DATA... -
Page 55: 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 56 1-4. Setting the Auto Restart Enable or disable automatic system restart after a power outage. Factory setting) Setting Description Function Number Setting Value *Auto restart is an emergency function such as for power failure etc. Do not start and stop the indoor unit by this function in normal operation. Be sure to operate by the control unit, or external input device.
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Page 57: Procedures To Change The Function Setting For Wireless Rc
3-1-2 Procedures to change the Function Setting for wireless RC The function settings of the control of the indoor unit can be changed by this procedure 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 58 STEP 2. Selecting the Function Number and Setting Value (1) Press the SET TEMP.( ) ( ) buttons to select the function number. (Press the MODE button to switch between the left and right digits.) (2) Press the FAN button to proceed to setting the value. (Press the FAN button again to return to the function number selection.) (3) Press the SET TEMP.( ) ( ) buttons to select the setting value.
- Page 59 REMOTE CONTROLLER SIGNAL CODE SETTING Use the following steps to select the signal code of the remote controller. (Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code.) (1) Press the MODE button for at least 5 seconds to display the current signal code.
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Page 60: 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 55.46 0.76 -30.0 977.6 0.24 -5.0 42.36 0.95 -25.0 713.2 0.33 32.67 1.17 -20.0 526.8 0.43... - Page 62 1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan Mar. 2012 Printed in Japan...