Related Manuals for Fujitsu ARCG040LSTA
Summary of Contents for Fujitsu ARCG040LSTA
- Page 1 SPLIT TYPE ROOM AIR CONDITIONER SLIM DUCT type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit ARCG040LSTA AOCG040LBTA 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...................... 01-02 4. AUTO CHANGEOVER OPERATION................. 01-03 5. INDOOR FAN CONTROL................... 01-05 6. OUTDOOR FAN CONTROL..................01-08 7. COMPRESSOR CONTROL..................01-09 8. TIMER OPERATION CONTROL................01-10 9. -
Page 3: Description Of Each Control Operation
R410A SLIM DUCT type INVERTER 1 . DESCRIPTION OF EACH CONTROL OPERATION... -
Page 4: Cooling Operation
1. COOLING OPERATION 1-1 COOLING CAPACITY CONTROL 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 higher than a set temperature, the compressor operation... -
Page 5: Heating Operation
2. HEATING OPERATION 2-1 HEATING CAPACITY CONTROL 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... -
Page 6: Auto Changeover Operation
4. AUTO CHANGEOVER OPERATION Cooling, Dry and Monitoring mode. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set between 18°C 30°C 1°C steps. When operation starts, indoor fan and outdoor fan are operated for around 2 minutes. - Page 7 AUTO CHANGEOVER operation flow chart START Setting temperature Room temp. Ts + 2 °C Room temp. Ts - 2 °C Middle zone Operation mode COOLING (AUTO:DRY) HEATING OPERATION of outdoor unit : Cooling or Dry? OPERATION Thermostat remains Thermostat remains Operation mode in OFF state for 6 minutes or in OFF state for 6 minutes or...
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Page 8: Indoor Fan Control
5. INDOOR FAN CONTROL 1. Fan speed ( Table 6 : Indoor Fan Speed ) ARCG040LSTA Operation mode Air flow mode Speed (rpm) Heating 1560 1400 1240 Quiet 1030 S-Lo 1560 Cooling 1400 1240 Quiet 1030 *Soft Quiet Auto 1030... - Page 9 4. DRY OPERATION During the dry operation, the fan speed 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. ( Fig.6 : Indoor Fan Control ) Compressor Indoor fan Dry air flow...
- Page 10 7. FAN CONTROL FOR ENERGY SAVING When the air flow setting except AUTO mode, the indoor fan motor will run as shown in Fig.9. ( Fig 9 : Indoor Fan Control) Compressor Indoor fan Setting air flow 480rpm S-Lo (sec) Factory setting) Setting Description Function Number...
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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 7 : Type of Motor ) AC Motor DC Motor AOCG040LBTA 2. -
Page 12: Compressor Control
7. 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 frequency range) Cooling / Dry Heating Minimum Maximum Minimum Maximum 12rps 99rps 16rps... -
Page 13: Timer Operation Control
8. TIMER OPERATION CONTROL 8-1 WIRELESS REMOTE CONTROLLER AR-RAJ2T 1. ON / OFF TIMER 2. PROGRAM TIMER 3. SLEEP TIMER 1. ON / OFF TIMER 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 3. SLEEP TIMER If the sleep timer 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 It increases the setting temperature another 1 °C after 1 hour.
- Page 15 8-2 WIRED REMOTE CONTROLLER (OPTION) AR-WAE1E 1. ON / OFF TIMER 2. WEEKLY TIMER 3. TEMPERATURE SET BACK TIMER 1. ON / OFF TIMER 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 16 2-2. DAY OFF setting The DAY OFF setting is only available for days for which weekly settings already exist. 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. Normal DAY OFF Operation mode...
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Page 17: Electronic Expansion Valve Control
9. 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 Table12. The compressor frequency, the detected temperature by the discharge temperature sensor, the indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature sensor. ( Table12 : The pulse range of the electronic expansion valve control ) Operation mode Pulse range... -
Page 18: Auto Restart
13. 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 resumed with the memorized operation contents. (Table 13 : Operation contents memorized when the power is interrupted) Wired remote controller Wired remote controller Wireless remote... -
Page 19: Economy Operation
16. ECONOMY OPERATION The ECONOMY operation functions by pressing button on the remote controller. At the maximum output, ECONOMY Operation is approximately 70% of normal air conditioner operation for cooling and heating. The ECONOMY operation is almost the same operation as below settings. (Table 15 ) Mode Cooling/ Dry... -
Page 20: Drain Pump Operation
19. DRAIN PUMP OPERATION During Cooling / Dry mode 1. When the compressor starts, the drain pump starts simultaneously. 2. The drain pump operates continuously for 3 minutes after the compressor is turned off. 3. When the compressor stops by the "Anti- freezing protection", the drain pump is turned off in 1 hour after the compressor stops. -
Page 21: Defrost Operation Control
20. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts as shown in the following Table 16. (Table 16 : Condition of starting Defrost Operation ) Compressor integrating operation time Normal defrost Less than 40 minutes More than 40 minutes Outdoor heat exchanger temp. - Page 22 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 23: Off Defrost Operation Control
21. OFF DEFROST OPERATION 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 24: Various Protections
22. 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 20 rps, and it continues to decrease the frequency for 20 rps every 120 seconds until the temperature becomes lower than Temperature . - Page 25 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 20 : Anti-freezing Protection Operation / Release Temperature) Outdoor temperature Temperature...
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Page 26: Trouble Shooting
R410A SLIM DUCT type INVERTER 2 . TROUBLE SHOOTING... -
Page 27: Error Display
2. TROUBLESHOOTING 2-1 ERROR DISPLAY 2-1-1 RECEIVER UNIT AND WIRED REMOTE CONTROLLER DISPLAY Please refer the flashing pattern as follows. ( Green) lamps operate as follows according to the error contents. (Orange) (Green) Receiver Unit Display Wired Remote Trouble Error Contents Controller shooting Display... -
Page 28: 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 authorized service personnel. Unit number (usually 0) Error code SU MOTU WETH FR SA ex. -
Page 29: Trouble Shooting With Error Code
2-2 TROUBLE SHOOTING WITH ERROR CODE Indicate or Display: Trouble shooting 1 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 1 time Flash Serial communication error Economy lamp : Continuous flash. (Serial reverse transfer error) ERROR CODE : [E : 11] Detective Actuators:... - Page 30 Indicate or Display: Trouble shooting 2 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 1 time Flash Serial communication error Economy lamp : Continuous flash. (Serial forward transfer error) ERROR CODE : [E : 11] Detective Actuators: Detective details:...
- Page 31 Indicate or Display: Trouble shooting 3 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 2 time Flash Wired remote controller Economy lamp : Continuous flash. communication error ERROR CODE : [E : 12] Detective Actuators: Detective details: Indoor unit Controller PCB...
- Page 32 Indicate or Display: Trouble shooting 4 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 2 time Flash, Timer lamp: 2 time Flash Indoor unit capacity error Economy lamp : Continuous flash. ERROR CODE : [E : 22] Detective Actuators: Detective details: All indoor unit...
- Page 33 Trouble shooting 5 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 3 time Flash, Timer lamp: 2 time Flash Indoor unit PCB model information error Economy lamp : Continuous flash. ERROR CODE : [E : 32] Detective details: Detective Actuators: When power is on and there is some below case.
- Page 34 Indicate or Display: Trouble shooting 6 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 3 time Flash, Timer lamp: 5 time Flash Manual auto switch error Economy lamp : Continuous flash. ERROR CODE : [E : 35] Detective Actuators: Detective details: Indoor unit Controller PCB...
- Page 35 If Thermistor is either open or shorted, replace it and reset the power. 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) ARCG040LSTA GRAY GRAY H/E (MID) Thermistor Room Temp.
- Page 36 If Thermistor is either open or shorted, replace it and reset the power. 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) ARCG040LSTA GRAY GRAY H/E (MID) Thermistor Room Temp.
- Page 37 Indicate or Display: Trouble shooting 9 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 5 time Flash, Timer lamp: 1 time Flash Indoor unit fan motor error Economy lamp : Continuous flash. ERROR CODE : [E : 51] Detective Actuators: Detective details: When the condition that actual frequency of Indoor Fan is...
- Page 38 Indicate or Display: Trouble shooting 10 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 5 time Flash, Timer lamp: 3 time Flash Drain pump error Economy lamp : Continuous flash. ERROR CODE : [E : 53] Detective Actuators: Detective details: Indoor unit Controller PCB...
- Page 39 Indicate or Display: Trouble shooting 11 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 6 time Flash, Timer lamp: 2 time Flash Outdoor unit main PCB model Economy lamp : Continuous flash. information error or communication error ERROR CODE : [E : 62] Detective details: Detective Actuators:...
- Page 40 Indicate or Display: Trouble shooting 12 Outdoor Unit : No indication OUTDOOR UNIT Error Method: INDOOR UNIT Indoor Unit : Operation lamp: 6 time Flash, Timer lamp: 4 time Flash PFC circuit error Economy lamp : Continuous flash. ERROR CODE : [E : 64] Detective Actuators: Detective details: Outdoor unit Main PCB...
- Page 41 Trouble shooting 13 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 3 time Flash, Timer lamp: 2 time Flash IPM error Economy lamp : Continuous flash. ERROR CODE : [E : 65] Detective details: Detective Actuators: When more than normal operating current to IPM in Main PCB flows,...
- Page 42 Trouble shooting 14 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED 0.1sec ON/ 0.1sec OFF Indoor Unit : Operation lamp: 7 time Flash, Timer lamp: 1 time Flash Discharge temp. thermistor error Economy lamp : Continuous flash. ERROR CODE : [E : 71] Detective details: Detective Actuators:...
- Page 43 Trouble shooting 15 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED 0.1sec ON/ 0.1sec OFF Outdoor unit Heat Ex. liquid temp. Indoor Unit : Operation lamp: 7 time Flash, Timer lamp: 3 time Flash thermistor error Economy lamp : Continuous flash. ERROR CODE : [E : 73] Detective Actuators: Detective details:...
- Page 44 Trouble shooting 16 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED 0.1sec ON/ 0.1sec OFF Indoor Unit : Operation lamp: 7 time Flash, Timer lamp: 4 time Flash Outdoor temp. thermistor error Economy lamp : Continuous flash. ERROR CODE : [E : 74] Detective Actuators: Detective details:...
- Page 45 Indicate or Display: Trouble shooting 17 OUTDOOR UNIT Error Method: Outdoor Unit : LED 0.5sec ON/ 0.5sec OFF Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 4 time Flash Trip detection Economy lamp : Continuous flash. ERROR CODE : [E : 94] Detective details: Detective Actuators: When more than normal operating current to IPM in Main PCB flows,...
- Page 46 Indicate or Display: Trouble shooting 18 OUTDOOR UNIT Error Method: Outdoor Unit : LED 0.1sec ON/ 2sec OFF Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 5 time Flash Compressor rotor position Economy lamp : Continuous flash. detection error (permanent stop) ERROR CODE : [E : 95] Detective details: Detective Actuators:...
- Page 47 Trouble shooting 19 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED 5sec ON/ 5sec OFF Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 7 time Flash Outdoor unit fan motor error Economy lamp : Continuous flash. ERROR CODE : [E : 97] Detective Actuators: Detective details:...
- Page 48 Trouble shooting 20 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 9 time Flash 4-way valve error Economy lamp : Continuous flash. ERROR CODE : [E : 99] Detective Actuators: Detective details: When the indoor heat exchanger temperature is compared with...
- Page 49 Trouble shooting 21 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : Continuously lighting Discharge temp. error Indoor Unit : Operation lamp: 10 time Flash, Timer lamp: 1 time Flash Economy lamp : Continuous flash. ERROR CODE : [E : A1] Detective details: Detective Actuators: Outdoor unit Main PCB...
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Page 50: Trouble Shooting With No Error Code
2-3 TROUBLE SHOOTING WITH NO ERROR CODE Forecast of Cause: Trouble shooting 22 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 51 Forecast of Cause: Trouble shooting 23 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 52 Forecast of Cause: Trouble shooting 24 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 53 Forecast of Cause: Trouble shooting 25 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 54 Forecast of Cause : Trouble shooting 26 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 55: 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 loose bolt or contact noise... - Page 56 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check Connection Check terminal connection of Compressor (loose or incorrect wiring) Terminal cover opened (BLACK) (WHITE) (RED) AOCG040LBTA Check Point 2 : Check Winding Resistance Check winding resistance of each terminal If the resistance value is 0 or infinite, replace Compressor.
- Page 57 SERVICE PARTS INFORMATION 3 Outdoor unit Electronic Expansion Valve ( EEV ) Check Point 1 : Check Connections Check connection of connector ( Loose connector or open cable ) EXPANSION VALVE COIL BROWN BLUE CN40 ORANGE YELLOW WHITE Check Point 3 : Check noise at start up Check Point 2 : Check Coil of EEV Remove connector, check each winding Turn on Power and check operation noise.
- Page 58 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 59: Appending Data
R410A SLIM DUCT type INVERTER 3 . APPENDING DATA... - Page 60 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 61 1-3. Setting the Cooler room temperature correction Depending on the installed environment, the room temperature sensor may require a correction. The settings may be selected as shown in the table below. Factory setting) Setting Description Function Number Setting Value Standard Slightly lower control Lower control Warmar control...
- Page 62 1-6. Setting the 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. Factory setting) Setting Description Function Number Setting Value If setting value is “00”, room temperature is controlled by the indoor unit temperature sensor.
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Page 63: Function Setting
3-1-2 Procedures to change the Function Setting 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 64 Custom code setting for remote controller 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 button until only the clock is displayed on the remote controller display.
- Page 65 FUNCTION SETTING METHOD (for Wired remote controller) (1) Press the SET TEMP. buttons ( ) ( ) and FAN button simultaneously for more than 5 seconds to enter the function setting mode. SU MO TU WE TH FR SA (2) Press the SET BACK button to select the indoor unit number. SET BACK SU MO TU WE TH FR SA Unit number of Indoor unit...
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Page 66: Thermistor Resistance Values
3-2. Thermistor Resistance Values 3-2-1 INDOOR UNIT Room temperature thermistor Indoor heat exchanger thermistor Temp (°C) Resistance(k ) Voltage(V) Temp (°C) Resistance(k ) Voltage(V) 58.2 0.73 0.23 -10.0 -30.0 1013.1 -5.0 44.0 0.93 -25.0 0.32 729.1 33.6 1.15 -20.0 0.43 531.5 25.9 1.39... - Page 67 3-3-17,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan Jun. 2016 Printed in Japan...