Related Manuals for Fujitsu AS*A09LKC
Summary of Contents for Fujitsu AS*A09LKC
- Page 1 SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AO*R09LKC AS*A09LKC AO*R12LKC AS*A12LKC R410A...
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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
( Table 1 : Compressor Frequency Range ) minimum maximum maximum frequency frequency frequency AS*A09LKC 22Hz 76Hz 79Hz AS*A12LKC 18Hz 80Hz 96Hz ( Fig. 1 : Limit of Maximum Frequency based on Outdoor Temperature ) -
Page 5: Heating Operation
However, the maximum frequency is limited in the range shown in Figure 2 based on the fan speed mode and the outdoor temperature. ( Table 2 : Compressor Frequency Range ) minimum maximum frequency frequency AS*A09LKC 22Hz 99Hz 18Hz 130Hz AS*A12LKC ( Fig.2 : Limit of Maximum Frequency based on Outdoor Temperature ) -
Page 6: Dry Operation
Table 3. However, after the compressor is driven, the indoor unit shall run at operation frequency of 70Hz (for AS*A09LKC) or 56Hz (for AS*A12LKC) , for a minute. ( Table 3 : Compressor frequency ) -
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 and 30°C in 1°C steps. -
Page 8: Indoor Fan Control
5. INDOOR FAN CONTROL 1. Fan speed ( Table 6 : Indoor Fan Speed ) AS*A09 / 12LKC Operation mode Air flow mode Speed (rpm) 1440 Heating 1370 1200 Quiet Cool air prevention S-Lo Cooling 1400 1200 Quiet X zone: 620 J zone: 600 2. - Page 9 The maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected temperature by the indoor heat exchanger sensor on heating mode. (Fig.8 : Cool Air Prevention Control) Indoor heat exchanger Indoor heat exchanger temperature temperature AS*A09LKC 42°C 35°C 39°C 37°C 33°C 31°C Cool air prevention 30°C...
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Page 10: Outdoor Fan Control
( Table 8 : Outdoor fan speed ) (rpm) ZONE Cooling Heating A - C 730/ 650/ 470 730/ 470 AS*A09LKC 650/ 470 730/ 470/ 230 A - C 860/ 760/ 470 760/ 470 760/ 680/ 470 AS*A12LKC 860/ 470/ 330 Refer to Fig1. -
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) Cooling / Dry mode Heating mode Fan mode Use the air direction adjustments within the ranges shown above. The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected. -
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 10. (Table 10 : Compressor Operation Frequency Range) Cooling Heating AS*A09LKC 22Hz 79Hz 22Hz 99Hz 28Hz 37Hz... -
Page 13: Timer Operation Control
9. TIMER OPEARTION CONTROL The table 11 shows the available timer setting based on the product model. (Table 11 : Timer Setting) ON TIMER / OFF TIMER SLEEP TIMER AS*A09 / 12LKC 1. OPEARTION FREQUENCY RANGE OFF timer : When the clock reaches the set time, the air conditioner will be turned off. Operation mode Stop mode Set time of timer... - Page 14 2. 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 15: Electronic Expansion Valve Control
10. ELECTRONIC EXPANSION VALVE CONTROL The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the following values. The compressor frequency, the temperatures detected by the discharge temperature sensor, the indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature sensor. -
Page 16: Manual Auto Operation (Indoor Unit Body Operation)
The coil-dry operation is consisted of Fan operation 50 minutes, Heating operation 3 minutes, and Fan operates for 30 minutes at last before ending the air conditioner operation. (Table 13 : COIL-DRY Operating Functions) Compressor Louver Indoor Fan Speed Position Frequency AS*A09LKC 780rpm 43Hz AS*A12LKC 780rpm 39Hz 01-13... -
Page 17: Defrost Operation Control
19. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts when the outdoor heat exchanger temperature sensor detects the temperature lower than the values shown in Table 14. (Table 14 : Condition of starting Defrost Operation) Compressor operating time 25 minutes to Less than 25 minutes... - Page 18 Defrost Flow Chart The defrosting shall proceed by the integrating operation time and outdoor heat exchanger temperature as follows. Heating operation start : Compressor ON (Not defrosted for 10 minutes) Compressor integrating Compressor integrating operation: operation: Over 25 minutes to Over 240 minutes below 240 minutes Outdoor heat exchanger...
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Page 19: Off Defrost Operation Control
20. 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 20: Various Protections
The compressor frequency returns to the designated frequency of the indoor unit at the time when the frequency becomes lower than the release value. (Table 17 : Current Release Operation Value / Release Value) [ Heating ] AS*A09LKC AS*A12LKC OT (Control / Release) OT (Control / Release) 5.0A/ 4.5A... - Page 21 55°C 52°C The compressor frequency is decreased 3Hz every 60seconds. 53°C 50°C It returns to the normal operation Compressor Operation [ AS*A09LKC ] 52Hz or greater 49Hz 43 49Hz Frequency down every 120 sec 34 40Hz 28Hz 22 28Hz [ AS*A12LKC ]...
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Page 22: Trouble Shooting
R410A WALL MOUNTED type INVERTER 2 . TROUBLE SHOOTING... -
Page 23: Error Display
2-1-1 INDOOR UNIT AND WIRED RMOTE CONTROLLER DISPLAY 1. ERROR DISPLAY Please refer the blinking pattern as follows. Indoor Unit : AS*A09LKC, AS*A12LKC The OPERATION, TIMER lamps operate as follows according to the error contents. Wired Rmote Indoor Unit display Trouble... -
Page 24: Wired Remote Controller Display (Option)
2-1-2 WIRED REMOTE CONTROLLER DISPLAY (OPTION) 1. SELF - DIAGNOSIS When "EE" in Temperature Display is displayed, inspection of the air conditioning system is necessary. Please consult authoilzed service personnel. Unit number (usually 0) Error code SU MOTU WETH FR SA ex. -
Page 25: Trouble Shooting With Error Code
2-2 TROUBLE SHOOTING WITH ERROR CODE Trouble shooting 1 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Serial Error (Serial Reverse Transfer Error) Detective Actuators: Detective details: When the indoor unit cannot properly receive the serial signal from Outdoor Unit Inverter PCB outdoor unit for 10 seconds or more. - Page 26 Trouble shooting 2 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Serial Error (Serial Forward Transfer Error) Detective Actuators: Detective details: When the indoor unit cannot properly receive the serial signal from Indoor Unit Controller PCB outdoor unit for 10 seconds or more.
- Page 27 Trouble shooting 3 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Wired Remote Controller Error Detective Actuators: Detective details: Indoor unit Controller PCB When the indoor unit cannot properly receive the signal from Wired Remote Controller(Option) Wired Remote Controller for 1 minute or more.
- Page 28 Trouble shooting 4 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Room Temperature Thermistor Error Detective Actuators: Detective details: Indoor Unit Controller PCB When Room Temperature Thermistor open or short-circuit is Room Temperature Thermistor detected at power ON. Forecast of Cause : 1.
- Page 29 Trouble shooting 5 Indicate or Display: INDOOR UNIT Error Method: Indoor Heat Exchanger Temperature Refer to error code table. Thermistor (Middle) Error Detective Actuators: Detective details: Indoor Unit Controller PCB When Heat Exchanger Temperature Thermistor (Middle) open or short-circuit is detected at power ON. Heat Exchanger Temperature Thermistor (Middle) Forecast of Cause : 1.
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Page 30: Trouble Shooting 6
Trouble shooting 6 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor Discharge Pipe Temperature Thermistor Error Detective Actuators: Detective details: Outdoor Unit Inverter PCB When Discharge Pipe Temperature Thermistor open or short-circuit Discharge Pipe Temperature Thermistor is detected at power ON or while running the compressor. - Page 31 Trouble shooting 7 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Heat Exchanger Temperature Refer to error code table. Thermistor Error Detective Actuators: Detective details: Outdoor Unit Inverter PCB When Heat Exchanger Temperature Thermistor (Out) open or Heat Exchanger Temperature Thermistor short-circuit is detected at power ON or while running the compressor.
- Page 32 Trouble shooting 8 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor Temperature Thermistor Error Detective Actuators: Detective details: Outdoor Unit Inverter PCB When Outdoor Temperature Thermistor open or short-circuit Outdoor Temperature Thermistor is detected at power ON or while running the compressor. Forecast of Cause : 1.
- Page 33 Trouble shooting 9 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Manual Auto Switch Error Detective Actuators: Detective details: Indoor Unit Inverter PCB When the Manual Auto Switch becomes ON for consecutive 30 or Manual Auto Switch more seconds.
- Page 34 Trouble shooting 10 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Power Supply Frequency Detection Error Detective Actuators: Detective details: Indoor Unit Controller PCB When power frequency is not detected by 4 seconds after power-on. Forecast of Cause: 1.
- Page 35 Trouble shooting 11 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Over Current Protection Detective Actuators: Detective details: Inverter PCB When over current flows in , the compressor stops. Outdoor Unit Inverter PCB After the compressor restarts, if the same error is repeated within Compressor 40sec, the compressor stops reappear.
- Page 36 Trouble shooting 12 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. CT Error Detective Actuators: Detective details: After compressor runs for 1 minute or more, and while it runs Outdoor Unit Inverter PCB in 56Hz or more. When outdoor current value (A/D data) of Input Current Sensor has detected [00H].
- Page 37 Trouble shooting 13 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Compressor Location Detection Error Detective Actuators: Detective details: When "compressor location detection error" is detected consecutively Outdoor Unit Inverter PCB 5 times, within 40 seconds after start-up. Forecast of Cause : 1.
- Page 38 Trouble shooting 14 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Outdoor Unit Fan Error Detective Actuators: Detective details: When outdoor fan rotation speed is less than 100rpm in 20 seconds Outdoor Unit Inverter PCB after fan motor starts, fan motor stops. Outdoor Fan Motor After fan motor restarts, if the same operation within 60sec is repeated consecutively 3 times, compressor and fan motor stops.
- Page 39 Trouble shooting 15 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Indoor Fan Motor Lock Error Indoor Fan Motor Rev. Error Detective Actuators: Detective details: Indoor Unit Controller PCB When the condition that actual rev. of Indoor Fan is 1/3 or less. Indoor Fan Motor Or the condition of fan speed is 0rpm is continued more than 56 seconds.
- Page 40 Trouble shooting 16 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Discharge Temperature Error Detective Actuators: Detective details: Outdoor Unit Inverter PCB When the discharge temperature becomes higher than 115°C. Discharge Pipe Temperature Thermistor When detecting it 2 times within 24 hours, the compressor stops. Forecast of Cause : 1.
- Page 41 Trouble shooting 17 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Excessive High Pressure Protection On Cooling Detective Actuators: Detective details: Outdoor Unit Inverter PCB In cooling operation, after 1 minute or more compressor starts, when outdoor heat exchanger temperature is 68 °C and above. Outdoor Fan Motor Heat Exchanger Temp.
- Page 42 Trouble shooting 18 Indicate or Display: OUTDOOR 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 Outdoor Unit Inverter PCB Circuit the room temperature, and either following condition is detected 4-way valve continuously two times, the compressor stops.
- Page 43 Trouble shooting 19 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. Active Filter Error Detective Actuators: Detective details: Outdoor Unit Inverter PCB Inverter low voltage protection Inverter overvoltage protection Forecast of Cause : 1. Connector connection failure 2.
- Page 44 Trouble shooting 20 Indicate or Display: OUTDOOR UNIT Error Method: Refer to error code table. PFC circuit error Detective Actuators: Detective details: When inverter output DC voltage is higher than 415V for over Outdoor Unit Inverter PCB Circuit 3 seconds, the compressor stops. If the same operation is repeated 5 times, the compressor stops permanently.
- Page 45 Trouble shooting 21 Indicate or Display: INDOOR UNIT Error Method: Refer to error code table. Model Distinction Error (Indoor) Detective Actuators: Detective details: When power is on and there is some below case. Indoor Unit Controller PCB 1. When model information of EEPROM is incorrect 2.
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Page 46: Trouble Shooting With No Error Code
2-3 TROUBLE SHOOTING WITH NO ERROR CODE Trouble shooting 22 Forecast of Cause: 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 47 Trouble shooting 23 Forecast of Cause: 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 manual. Check Point 2 : Check external cause at indoor unit and outdoor unit(Voltage drop or noise) Instant voltage drop of ----- Check if there is a abnomally large load in the same power supply...
- Page 48 Trouble shooting 24 Forecast of Cause: 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 controller, or terminals between indoor units. Or, check if there is an open cable connection.
- Page 49 Trouble shooting 25 Forecast of Cause: 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 50 Trouble shooting 26 Forecast of Cause : 1. Abnormal installation(Indoor unit / outdoor unit) Abnormal Noise 2. Fan failure(Indoor unit / outdoor unit) 3. Compressor failure (Outdoor unit) Diagnosis method when abnormal noise is occurred Abnormal noise is coming from indoor unit. Abnormal noise is coming from outdoor unit.
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Page 51: 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 Is there open or loose connection Is there open or loose connection Check if vibration noise by cable? - Page 52 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check connection Check terminal connection of Compressor Check connection of Inverter PCB (Loose or incorrect wiring) (Loose or incorrect wiring) (WHITE) (BLACK) Inverter PCB Inverter PCB BLACK WHITE Compressor (RED) Check Point 2 : Check winding resistance Check winding resistance of each terminal If the resistance value is 0...
- Page 53 SERVICE PARTS INFORMATION 3 Outdoor Unit Electronic Expansion Valve (EEV) Check Point 1 : Check Connections Check connection of connector ( Loose connector or open cable ) AO*R09LKC AO*R12LKC Green Brown Orange Orange CN600 CN40 Yellow Yellow White White EXPANSION VALVE COIL EXPANSION VALVE COIL Check Point 2 : Check coil of EEV Remove connector, check each winding resistance of Coil.
- Page 54 Check Point 5 : Check opening and closing operation of valve When valve is closed, If it is open, it has no temp. difference between inlet and outlet. it has a temp. difference between Inlet and outlet. CLOSE OPEN Example : Hot gas Example : Hot gas Pipe (In) Pipe (In)
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Page 55: Appending Data
R410A WALL MOUNTED type INVERTER 3 . APPENDING DATA 1. Jumper setting of Outdoor unit 2. Outdoor unit Pressure Value and Total Electric Current Curve 3. Thermistor Resistance Values... - Page 56 1. Jumper setting of Outdoor unit [Outdoor Unit] JM103 JM102 JM101 JM100 09LKC Normal Preheat Higher Preheat 12LKC Normal Preheat Higher Preheat - it is possible to select the higher or standard level of preheating function. - When it is set up at the higher level of preheat, the magnetic noise of the compressor becomes higher. 03-01...
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Page 57: Outdoor Unit Pressure Value And Total Electric Current Curve
1. Operate on Colling mode, and press TEST button of remote control. 2. Operate continuously for 30 minutes. (After 60 minutes of operation, Test mode is released automatically.) (1) Indoor/Outdoor Temperature - Outdoor Low Pressure Curve AS*A12LKC AS*A09LKC [50Hz-230V] [50Hz-230V] RH50%... - Page 58 1. Operate on Heating mode, and press TEST button of remote control. 2. Operate continuously for 30 minutes. (After 60 minutes of operation, Test mode is released automatically.) (1) Indoor/Outdoor Temperature - Outdoor High Pressure Curve AS*A09LKC AS*A12LKC [50Hz-230V] [50Hz-230V]...
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Page 59: Thermistor Resistance Values
3. Thermistor Resistance Values 3-1 INDOOR UNIT Room temperature thermistor Indoor heat exchanger thermistor Resistance(k ) Voltage(V) Resistance(k ) Voltage(V) Temp ( C) Temp ( C) 0.00 33.62 1.15 0.00 176.03 1.10 5.00 25.93 1.39 5.00 134.23 1.36 10.00 20.18 1.66 10.00 103.34... - Page 60 1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan MAR. 2010 Printed in Japan...