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Main Functions

SiBE04-824

18

Function and Control

1.2

Airflow Direction Control

Power-Airflow 
Dual Flaps

The large flaps send a large volume of air downwards to the floor. The flap provides an optimum 
control area in cooling, heating and dry mode.

Heating Mode

During heating mode, the large flap enables direct warm air straight downwards. The flap 
presses the warm air above the floor to reach the entire room.

Cooling Mode

During cooling mode, the flap retracts into the indoor unit. Then, cool air can be blown far and 
pervaded all over the room.

Wide-Angle 
Louvres

The louvres, made of elastic synthetic resin, provide a wide range of airflow that guarantees a 
comfortable air distribution. 

Auto-Swing

The following table explains the auto swing process for heating, cooling, dry and fan :

COMFORT 
AIRFLOW Mode

The vertical swing flap is controlled not to blow the air directly on the person in the room.

„

The airflow rate is controlled automatically within the following steps.
Cooling: L tap – MH tap (same as AUTOMATIC)
Heating: ML tap – M tap

„

The latest command has the priority between POWERFUL and COMFORT AIRFLOW.

Vertical Swing (up and down)

Horizontal Swing 

(right and left: manual)

Cooling / Dry

Heating

Fan

(R4281)

10

°

50

°

(R4282)

30

°

65

°

(R4283)

5

°

70

°

(R4284)

45

°

45

°

Heating

Cooling

(R4303)

70

°

(R4302)

5

°

Содержание ATXS35EV1B7

Страница 1: ...SiBE04 824 Applied Models z Inverter Pair Heat Pump Inverter Pair Wall Mounted Type E Series...

Страница 2: ...SiBE04 824 Table of Contents i Inverter Pair E Series zHeat Pump Indoor Unit ATXS25EV1B7 ATXS35EV1B7 ATXS50EV1B7 Outdoor Unit ARXS25F3V1B ARXS35F3V1B ARXS50E3V1B...

Страница 3: ...Control 22 1 7 NIGHT SET Mode 23 1 8 ECONO Mode 24 1 9 INTELLIGENT EYE 25 1 10 Inverter POWERFUL Operation 27 1 11 Other Functions 28 2 Function of Thermistor 30 3 Control Specification 31 3 1 Mode H...

Страница 4: ...stor or Related Abnormality Indoor Unit 87 4 6 Signal Transmission Error between Indoor and Outdoor Unit 88 4 7 Unspecified Voltage between Indoor and Outdoor Units 90 4 8 Outdoor Unit PCB Abnormality...

Страница 5: ...157 1 8 Removal of Fan Motor 161 1 9 Removal of Heat Exchanger 163 1 10 Removal of Fan Rotor 166 2 Outdoor Unit 169 2 1 ARXS 25 35 F 169 2 2 ARXS 50 E 194 Part 8 Others 217 1 Others 218 1 1 Test Run...

Страница 6: ...er cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shook If it is necessary to supp...

Страница 7: ...trical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or w...

Страница 8: ...eat generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the te...

Страница 9: ...vent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions...

Страница 10: ...to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water may enter the room and wet the furniture and floor For unitary type only Ca...

Страница 11: ...Introduction SiBE04 824 x...

Страница 12: ...SiBE04 824 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...

Страница 13: ...rability Auto Restart after Power Failure Comfort Airflow Mode Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of O...

Страница 14: ...SiBE04 824 Specifications 3 Part 2 Specifications 1 Specifications 4...

Страница 15: ...Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 17 0 16 0 15 0 17 0 16 0 15 0 19 0 18 0 17 0 19 0 18 0 17 P...

Страница 16: ...rol Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 21 0 21 Power Consumption Rated W 48 48 Power Factor 99 4 99 4 Temperature Control Microcomputer...

Страница 17: ...Specifications SiBE04 824 6 Specifications...

Страница 18: ...iBE04 824 Printed Circuit Board Connector Wiring Diagram 7 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 8 1 1 Indoor Unit 8 1 2 Outdoor Unit 1...

Страница 19: ...26 Connector for display PCB 5 S28 Connector for signal receiver PCB 6 S32 Connector for heat exchanger thermistor 7 S35 Connector for INTELLIGENT EYE sensor PCB 1 S29 Connector for control PCB 1 S27...

Страница 20: ...ircuit Board Connector Wiring Diagram 9 PCB Detail PCB 1 Control PCB PCB 4 INTELLIGENT EYE sensor PCB V1 S1 FU1 S6 L2 S26 S28 S32 JC JB JA LED A S35 S21 R6039 12V 5V GND PCB 2 Signal Receiver PCB PCB...

Страница 21: ...ctor for filter PCB 2 S20 Connector for electronic expansion valve coil 3 S30 Connector for compressor motor 4 S40 Connector for overload protector 5 S70 Connector for fan motor 6 S80 Connector for fo...

Страница 22: ...nector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 11 PCB Detail PCB 1 Filter PCB PCB 2 Control PCB outdoor unit FU3 20A S11 R4293 V3 V2 FU2 3 15A S30 HN3 HC3 S70 J8 HC4 R4605 S40 LE...

Страница 23: ...or service monitor PCB 5 S70 Connector for fan motor 6 S80 Connector for four way valve coil 7 S90 Connector for thermistors outdoor air heat exchanger and discharge pipe 8 AC1 AC2 Connector for termi...

Страница 24: ...iring Diagram Printed Circuit Board Connector Wiring Diagram 13 PCB Detail PCB 1 Main PCB PCB 2 Service Monitor PCB V3 V11 AC1 FU2 3 15A HR1 HR2 FU3 3 15A R5201 S40 S20 S70 S90 S51 S10 AC2 S101 V5 S80...

Страница 25: ...Printed Circuit Board Connector Wiring Diagram SiBE04 824 14 Printed Circuit Board Connector Wiring Diagram...

Страница 26: ...Functions 28 2 Function of Thermistor 30 3 Control Specification 31 3 1 Mode Hierarchy 31 3 2 Frequency Control 32 3 3 Controls at Mode Changing Start up 34 3 4 Discharge Pipe Temperature Control 36...

Страница 27: ...plains the conversion principle Drawing of Inverter The following drawing shows a schematic view of the inverter principle Phase Description 1 The supplied AC power source is converted into the DC pow...

Страница 28: ...air condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low...

Страница 29: ...he room Wide Angle Louvres The louvres made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution Auto Swing The following table explains the auto s...

Страница 30: ...H tap 50 90 rpm 2 Fan stops during defrost operation 3 In time of thermostat OFF the fan rotates at the following speed Cooling The fan keeps rotating at the set tap Heating 25 35 class The fan stops...

Страница 31: ...room temperature at startup and the temperature set by the microcomputer is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the te...

Страница 32: ...0 C 2 Main unit setting temperature equals remote controller setting temperature 3 Operation ON OFF point and mode switching point are as follows Heating Cooling switching point Room temperature Main...

Страница 33: ...erature difference is above the zone C after being in the zone A The system resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has pass...

Страница 34: ...GHT SET circuit continues heating or cooling the room at the set temperature for the first one hour then automatically raises the temperature setting slightly in the case of cooling or lowers it sligh...

Страница 35: ...s function is ON the maximum capacity is also down Approx 20 This function can only be set when the unit is running Pressing the operation stop button causes the settings to be cancelled This function...

Страница 36: ...puter doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature shifted 2 C from the set temperature Cooling Dry 2 C higher Heating...

Страница 37: ...es so as to prevent this phenomena After this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the conditions to conduct thermostat off depending on the room temperatur...

Страница 38: ...Operation mode Fan speed Target set temperature 25 35 class 50class COOL H tap 50 rpm H tap 90 rpm 18 C DRY Dry rotating speed 50 rpm Dry rotating speed 50 rpm Normally targeted temperature in dry ope...

Страница 39: ...e case of multi system operation there are times when the unit does not activate with this button Forced operation mode Forced operation mode will be set by pressing the ON OFF button for between 5 to...

Страница 40: ...ven if a power failure including one for just a moment occurs during the operation the operation restarts in the condition before power failure automatically when power is restored Note It takes 3 min...

Страница 41: ...in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the dis...

Страница 42: ...or heat pump model There are following modes stop cooling includes drying heating include defrosting Note Unless specified otherwise an indoor dry operation command must be regarded as cooling operati...

Страница 43: ...ced cooling 1 4 Indoor frequency command 2 Determine upper limit frequency Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions Compressor protec...

Страница 44: ...wn according to the D value obtaining the fixed D value When the D value is small lower the frequency When the D value is large increase the frequency 3 Frequency management when other controls are fu...

Страница 45: ...rter in open phase operation stops 50 class Outside temperature 10 C Control A preheating for normal state Outside temperature 10 C Control B preheating of increased capacity Control A ON condition Di...

Страница 46: ...the lower limit frequency cooling 68Hz heating 66Hz for 45 seconds with any conditions 1 through 6 above 50 class 1 The MRC W turns ON when the compressor starts for heating after the MRC W has been O...

Страница 47: ...y upper limit is set to keep this temperature from going up further Detail Divide the Zone Management within the Zones Zone Control contents Stop zone When the temperature reaches the stop zone stop t...

Страница 48: ...present maximum frequency goes on Reset zone Limit of the frequency is cancelled Stop zone After 2 5 s in this zone the compressor is stopped Limitation of current drooping and stop value according to...

Страница 49: ...from operation start Control in Each Zone 3 7 Heating Peak cut Control Outline Heat Pump Only During heating operation the signals being sent from the indoor unit allow the operating frequency limitat...

Страница 50: ...topped 4 Fan control for maintaining pressure difference 5 Fan control when the compressor starts for heating 6 Fan control in forced operation 7 Fan control in POWERFUL mode 8 Fan control in low nois...

Страница 51: ...r the compressor is started and more than 28 minutes of accumulated time pass since the start of the operation or ending the defrosting Conditions for Cancelling Defrost The judgment must be made with...

Страница 52: ...scharge pipe temperature control Detail The followings are the examples of control which function in each mode by the electronic expansion valve control R2833 Fully closed when power is turned ON Open...

Страница 53: ...nd lower discharge temperature 3 11 6 Disconnection of the Discharge Pipe Thermistor Outline Disconnection of the discharge pipe thermistor is detected by comparing the discharge pipe temperature with...

Страница 54: ...ft 3 11 8 Target Discharge Pipe Temperature Control Obtain the target discharge pipe temperature from the indoor and outdoor heat exchanger temperature and adjust the electronic expansion valve openin...

Страница 55: ...e ways of control to detect insufficient gas I Detecting by power consumption If the power consumption is below the specified value and the frequency is higher than the 55 Hz depending on the model it...

Страница 56: ...in the 3 minute stand by mode 2 The operating mode of the outdoor unit is the stop mode 3 The forced operation is ON The forced operation is allowed when the above and conditions are met Starting adju...

Страница 57: ...C or lower the operation will stop If the outdoor temperature rises the operation will start again Caution 1 If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct...

Страница 58: ...2 Name of Parts 51 2 3 Preparation Before Operation 54 2 4 AUTO DRY COOL HEAT FAN Operation 57 2 5 Adjusting the Airflow Direction 59 2 6 POWERFUL Operation 61 2 7 OUTDOOR UNIT QUIET Operation 62 2 8...

Страница 59: ...r method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the inst...

Страница 60: ...e content of the repairs with our service staff Do not attempt to install the air conditioner by your self Incorrect work will result in water leakage electric shocks or fire For installation consult...

Страница 61: ...ris accumulate around the unit Leaves are a hotbed for small animals which can enter the unit Once in the unit such animals can cause malfunc tions smoke or fire when making contact with electrical pa...

Страница 62: ...SiBE04 824 Instruction Operation Manual 51 2 2 Name of Parts 4 Names of parts Indoor Unit ON OFF 16 14 13 15 12 1 3 4 5 7 9 10 11 8 6 2...

Страница 63: ...Push once again to stop it The operation mode refers to the following table This switch is useful when the remote controller is missing 13 Operation lamp green 14 TIMER lamp yellow page 19 15 INTELLIG...

Страница 64: ...lects the operation mode AUTO DRY COOL HEAT FAN page 10 8 QUIET button OUTDOOR UNIT QUIET operation page 15 9 FAN setting button It selects the airflow rate setting 10 SWING button Ajusting the Airflo...

Страница 65: ...wo old batteries together When the system is not used for a long time take the batteries out The batteries will last for approximately one year If the remote controller display begins to fade and the...

Страница 66: ...nit 2 Fix the holder to a wall a pillar or similar location with the screws procured locally 3 Place the remote controller in the remote controller holder ATTENTION About remote controller Never expos...

Страница 67: ...the following conditions Operation outside this humidity or temperature range may cause a safety device to disable the system TEMP ON OFF POWERFUL MODE FAN SWING QUIET SENSOR ECONO COMFORT TIMER ON CA...

Страница 68: ...f the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off...

Страница 69: ...tion frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not f...

Страница 70: ...sition press SWING button once more The flaps will stop moving disappears from the LCD To adjust the vertical blades louvers Hold the knob and move the louvers You will find a knob on the left side an...

Страница 71: ...on flaps and louvers angles POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time Priority is given to POWERFUL operation When SWING button is selected the flaps swinging r...

Страница 72: ...tes on POWERFUL operation POWERFUL Operation cannot be used together with ECONO QUIET or COMFORT Operation Priority is given to the function of whichever button is pressed last POWERFUL Operation can...

Страница 73: ...n 1 Press QUIET button is displayed on the LCD To cancel OUTDOOR UNIT QUIET operation 2 Press QUIET button again disappears from the LCD NOTE Note on OUTDOOR UNIT QUIET operation This function is avai...

Страница 74: ...tion stop button causes the settings to be canceled and the disappears from the LCD ECONO operation is a function which enables efficient operation by limiting the power consumption of the outdoor uni...

Страница 75: ...peration 1 Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD EX TEMP ON OFF POWERFUL MODE FAN SWING QUIET SENSOR E...

Страница 76: ...ndoor unit location the speed of pass ersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE o...

Страница 77: ...her button changes the set ting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER operation 4 Press CANCEL button The TIMER lamp goes off NOTE When TIMER is set t...

Страница 78: ...ges the setting rapidly 3 Press ON TIMER button again The TIMER lamp lights up To cancel ON TIMER operation 4 Press CANCEL button The TIMER lamp goes off To combine ON TIMER and OFF TIMER A sample set...

Страница 79: ...ont panel Set the 2 keys of the front panel into the slots and push them in all the way Close the front panel slowly and push the panel at the 3 points 1 on each side and 1 in the middle CAUTION Units...

Страница 80: ...al detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Titanium Apatite Photocatalytic Air Purifying Filter The Titanium Apat...

Страница 81: ...ating or cooling 4 may cause odour To order Titanium Apatite Photocatalytic Air Purifying Filter contact to the service shop there you bought the air conditioner Dispose of the old filter as non flamm...

Страница 82: ...n the air in the room is cooled into mist by the cold airflow during cooling operation The indoor unit gives out odour This happens when smells of the room furniture or cigarettes are absorbed into th...

Страница 83: ...re the airflow rate and the air direction set appropriately Is the unit set to the INTELLIGENT EYE mode page 17 Operation stops suddenly OPERATION lamp flashes Are the air filters clean Is there anyth...

Страница 84: ...oved from the remote controller and disposed of separately in accordance with relevant local and national legislation In certain operating conditions the inside of the air conditioner may get foul aft...

Страница 85: ...Instruction SiBE04 824 74 Operation Manual...

Страница 86: ...Abnormality 91 4 9 OL Activation Compressor Overload 93 4 10 Compressor Lock 94 4 11 DC Fan Lock 95 4 12 Input Over Current Detection 96 4 13 Four Way Valve Abnormality 99 4 14 Discharge Pipe Tempera...

Страница 87: ...nt operation 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation Lamp...

Страница 88: ...r heat pump model and cooling operation cannot be used when the outdoor air temperature is below 10 C Diagnosis with remote controller indication 81 Equipment operates but does not cool or does not he...

Страница 89: ...ges in the sequence shown below and notifies with a long beep Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer cancel button d...

Страница 90: ...2 Press the TEMP button Press TEMP or TEMP and change the digit until you hear the sound of beep or pi pi 3 Diagnose by the sound pi The number of tens does not accord with the error code pi pi The n...

Страница 91: ...th numbers of tens and units do not accord with the error code pi pi The number of tens accords with the error code beep The both numbers of tens and units accord with the error code 7 Determine the e...

Страница 92: ...1 Outdoor unit PCB abnormality 91 E5 OL activation compressor overload 93 E6 Compressor lock 94 E7 DC fan lock 95 E8 Input over current detection 96 EA Four way valve abnormality 99 F3 Discharge pipe...

Страница 93: ...s detection in approximately 10 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Connector connection c...

Страница 94: ...ccording to the temperature detected by the indoor unit heat exchanger thermistor Malfunction Decision Conditions High pressure control During heating operations the temperature detected by the indoor...

Страница 95: ...r disconnect connector or parts damage may be occurred Provide sufficient air passage Clean the air filter Clean the heat exchanger Replace the indoor unit PCB Replace the thermistor replace the indoo...

Страница 96: ...ction Decision Conditions When the detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed Supposed Causes Oper...

Страница 97: ...off power switch before connect or disconnect connector or parts damage may be occurred Replace fan motor Replace indoor unit PCB Replace indoor unit PCB Note Motor may break when the motor connector...

Страница 98: ...n 120 ohms or below about 50 C more than 1 860 kohms Note The values vary slightly in some models Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check No 06 R...

Страница 99: ...hen the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal Supposed Causes Faulty outdoor unit PCB Faulty indoor unit PCB Indoor unit outdoor unit...

Страница 100: ...correct it NO R8266 NO YES YES NO NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES NO Correct the indoor unit outdoor unit connect...

Страница 101: ...rong models interconnected Wrong indoor unit PCB mounted Indoor unit PCB defective Wrong outdoor unit PCB mounted or defective Troubleshooting Caution Be sure to turn off power switch before connect o...

Страница 102: ...l is not detected Supposed Causes The microcomputer is out of control due to external factors Noise Momentary voltage drop Momentary power failure etc Outdoor unit PCB defective Broken harness between...

Страница 103: ...osed Causes Out of control of microcomputer caused by external factors z Noise z Momentary fall of voltage z Momentary power loss Defective outdoor unit PCB Troubleshooting Replace the outdoor unit PC...

Страница 104: ...shooting Check No 04 Refer to P 128 Check No 05 Refer to P 129 Check No 06 Refer to P 130 Check No 11 Refer to P 132 R7137 Caution Be sure to turn off power switch before connect or disconnect connect...

Страница 105: ...own if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Supposed Causes Compressor locked Compressor harness disconnected Troubleshooting Turn off the power Disco...

Страница 106: ...for about 10 minutes normal Supposed Causes Fan motor breakdown Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matters stuck in the fan Troubleshooting Check N...

Страница 107: ...k No 08 Refer to P 131 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred An input over current may result from wrong internal wiring If th...

Страница 108: ...put with the compressor running continues for 2 5 seconds CT input Above 20 A The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Sup...

Страница 109: ...er current check the wires again NO YES NO YES YES NO Get restarted and measure the input current Check No 14 Check the main circuit electrolytic capacitor Check No 08 Check the discharge pressure Che...

Страница 110: ...they function within their normal ranges in the operating mode Malfunction Decision Conditions A following condition continues over minutes after operating minutes Cooling dry operation room temp ind...

Страница 111: ...the refrigerant line check procedure Replace the four way valve defective or dust clogged Reconnect in position Caution Be sure to turn off power switch before connect or disconnect connector or part...

Страница 112: ...inute compressor running time total time 50 class If a stop takes place 6 times successively due to abnormal discharge pipe temperature the system will be shut down If the temperature being detected b...

Страница 113: ...ermistor Outdoor unit heat exchanger thermistor Outdoor temperature thermistor Refrigerant shortage Four way valve malfunctioning Water mixed Stop valve defective Functioning Functioning Functioning M...

Страница 114: ...heat exchanger thermistor exceeds the limit Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above 65 C The error is cleared when the...

Страница 115: ...nector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Replace the electronic expansion valve or coil Replace the PCB Change the air outlet grille position Clean the heat exc...

Страница 116: ...e range 0 5 4 5 V sensor output converted to voltage value or if the DC voltage before compressor start up is below 50 V Supposed Causes PCB defective Broken or poorly connected harness Troubleshootin...

Страница 117: ...the compressor startup Fault condition is identified by compressor current which is detected right after the compressor startup Malfunction Decision Conditions The detected valve of the supply voltage...

Страница 118: ...or unit PCB and measure the resistance value between reactor terminals with tester Disconnect the compressor relay harness from the outdoor unit PCB and measure the resistance value between the termin...

Страница 119: ...Compressor relay cable disconnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 13 Refer to P 133 Caution Be s...

Страница 120: ...ision Conditions The compressor running frequency is below 52 Hz The input current is also below 0 1 A If this error repeats 4 times the system will be shut down The error counter will reset itself if...

Страница 121: ...sion Conditions The compressor running frequency is below 55 Hz and the CT input is below 0 1 V The input current is also below 0 5 A If this error repeats 4 times the system will be shut down The err...

Страница 122: ...he power Disconnect the harnesses U V and W Turn off the power and reconnect the above harnesses Then turn on the power again and get the system restarted Compressor running DC380 30V Any LED off Runn...

Страница 123: ...ature Malfunction Decision Conditions The thermistor input is above 4 96 V or below 0 04 V with the power on Error J3 is judged if the discharge pipe thermistor temperature is smaller than the condens...

Страница 124: ...r again Normal Reconnect Reconnect Replace defective one s of the following thermistors Radiation fin thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Outdoor air thermistor Indo...

Страница 125: ...tion fin thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 80 C 95 C Reset is made when the temperature drops below 70 C...

Страница 126: ...elow 70 C 80 C R8345 YES Fin thermistor NO Slightly dirty Malfunctioning Too dirty Functioning NO YES NO YES Turn off the power and turn it on again Check the radiation fin temperature Check No 07 Che...

Страница 127: ...ng condition when the temperature drops below 85 C If a radiation fin temperature rise takes place 4 times successively the system will be shut down The error counter will reset itself if this or any...

Страница 128: ...ted and stops itself when it drops below 70 C Precaution before turning on the power again Turn off the power and turn it on again to get the system started Check the radiation fin temperature Check N...

Страница 129: ...the temperature drops below 99 C If a radiation fin temperature rise takes place 4 times successively the system will be shut down The error counter will reset itself if this or any other error does n...

Страница 130: ...n it on again to get the system started Check the radiation fin temperature Check No 07 Check the installation condition NO YES YES Radiation fin dirty Above 105 C Check No 09 Check the outdoor unit f...

Страница 131: ...input is fed from the output over current detection circuit to the microcomputer The system will be shut down if the error occurs 255 times 25 35 class or 16 times 50 class Clearing condition Continuo...

Страница 132: ...t over current take the following procedure Check No 08 Check the discharge pressure Check No 13 Check the power transistor Check No 07 Check the installation condition Check with the inverter checker...

Страница 133: ...owing conditions continue for 80 seconds Target opening of the electronic expansion valve 480 pulse Discharge temperature 255 256 target discharge temperature 30 C Gas shortage detection III When the...

Страница 134: ...expansion valve functioning Replace in position Open the stop valve Repair the pipe flare or replace the square union Check the power transistor harness for looseness Correct it as required Also repl...

Страница 135: ...DC current A Hz Output frequency However when the status of running frequency 55 Hz is kept on for a certain time Note The values are different from model to model Gas shortage detection II If a gas...

Страница 136: ...t heat exchanger thermistor 1 Replace the PCB 2 Replace the compressor Procedure complete R5218 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be o...

Страница 137: ...em will be shut down if the error occurs 16 times Clearing condition Continuous run for about 60 minutes normal Supposed Causes Supply voltage not as specified Over voltage detection circuit defective...

Страница 138: ...ccessively for 9 sec The abnormality is determined if the above fault conditions occurs once Fault counter is reset when the data from the PM1 can be successfully received Supposed Causes Defective ou...

Страница 139: ...ct that connector and check the conductivity using a tester Check the conductivity between pins 1 3 and 6 and between pins 2 4 and 5 If there is no conductivity between the pins the EV coil is faulty...

Страница 140: ...on again Disconnect the four way valve coil from the connector and check the continuity Start the heating mode run Four way valve coil Cooling dry No continuity Heating Continuity Replace the outdoor...

Страница 141: ...ors on the PCB and measure the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 20k B 39...

Страница 142: ...ction air temperature Change the position of the air discharge grille or the installation location Change the position of the air discharge grille or the installation location Change the installation...

Страница 143: ...here is waveform disturbance near the zero cross sections circled in Fig 2 5 1 9 Inverter Units Refrigerant System Check Check No 11 R7159 YES YES NO NO Outdoor unit fan system functioning Check the o...

Страница 144: ...the compressor connector with a multi tester Evaluate the measurement results for a pass fail judgment Power transistor check 50 class Checking the power transistor z Never touch any live parts for a...

Страница 145: ...e Diagnosis Tester s negative terminal Power transistor UVW Power transistor UVW Tester s positive terminal UVW Power transistor UVW Power transistor Normal resistance Several k to several M Abnormal...

Страница 146: ...1 Stop the operation first and then the power off and disconnect the connector S70 2 Make sure there is about DC 320 V between pins 4 and 7 3 With the system and the power still off reconnect the con...

Страница 147: ...Check SiBE04 824 136 Service Diagnosis...

Страница 148: ...40 1 3 Removal of Front Grille 142 1 4 Removal of Horizontal Blades and Vertical Blades 145 1 5 Removal of Electrical Box 148 1 6 Removal of PCB 151 1 7 Removal of Drain Pan Unit 157 1 8 Removal of Fa...

Страница 149: ...kept pressed for 5 seconds the forced cooling operation is performed for about 15 minutes 2 Removing the air filter 1 2 3 Put your fingers on the right and left projections of the front panel and open...

Страница 150: ...ifying filter is not marked for difference between the right and left sides 2 3 Remove the titanium apatite photocatalytic air purifying filter frame by bending the air filter and unfastening the proj...

Страница 151: ...ront panel 1 Put your fingers on the right and left projections of the front panel and open the panel over the position where it will stop 2 3 4 Slide the left rotary shaft to the right and release it...

Страница 152: ...Removal Procedure 141 Step Procedure Points 5 Remove the front panel Caution on Mounting When mounting the front panel fit the right and left rotary shafts one by one into the grooves and fully push...

Страница 153: ...e Points 1 Removing the service cover 1 Remove the screw of the service cover Preparation Remove the front panel according to the Removal of Front Panel 2 3 Pull out the service cover diagonally down...

Страница 154: ...at the right and left Remove the screws one each at the right and left Release the 3 hooks at the top Put your fingers into the front grille to the depth and lift the grille up to unhook When installi...

Страница 155: ...o the grille and lifting it 8 Remove the front grille by tilting the upper part to the front a and lifting and pulling the lower part toward yourself b Caution on Mounting When mounting the front gril...

Страница 156: ...xing shaft while bending the horizontal blade slightly Unfasten the left fixing shaft of the horizontal blade large Unfasten the right fixing shaft of the horizontal blade large Cautions on Mounting M...

Страница 157: ...rocedure Step Procedure Points 2 Removing the horizontal blade small 1 2 3 Remove the horizontal blade small while bending the fixed part at the centre slightly Unfasten the left side Unfasten the key...

Страница 158: ...hooks at the shaft mounting part by pressing them with a flat screwdriver Unfasten the hooks at the upper 2 positions 3 Remove the vertical blade toward yourself Six vertical blades are united as a se...

Страница 159: ...ies before disassembling work Step Procedure Points 1 2 3 4 The figure shows the connections of wire harnesses Remove the screw of the electric wire retaining plate Loosen the screws of the terminal b...

Страница 160: ...e by removing the screw Replace the heat exchanger thermistor Disconnect the earth wire by removing the screw Remove the screw of the electrical box Put any excess wires behind the power supply lead w...

Страница 161: ...y pressing it from above and pulling the box toward yourself Lift up the electrical box and pull it toward yourself When the connector of the fan motor S1 is removed the electrical box can be dismount...

Страница 162: ...1 Removing the shelter 1 2 3 The figure shows the appearance of the electrical box Open the shelter at the back Push the upper centre of the shelter and unfasten the hooks at the upper 2 positions of...

Страница 163: ...ard 1 Dismount the terminal board by removing the screw 4 Removing the signal receiver unit 1 2 Remove the signal receiver unit by unfastening the hooks one each at the right and left Remove the elect...

Страница 164: ...e electrical box by sliding it to the left Disconnect the wire harness 5 Removing the signal receiver PCB 1 Remove the signal receiver PCB by opening the hooks at 3 positions 2 Disconnect the connecto...

Страница 165: ...GENT EYE PCB 1 2 3 Remove the INTELLIGENT EYE fixing plate by twisting it clockwise Remove the INTELLIGENT EYE PCB by unfastening the hook Disconnect the connector from the INTELLIGENT EYE PCB Step Pr...

Страница 166: ...1 The figure shows the connection of wire harness for the display PCB 2 Remove the display PCB by unfastening the 2 hooks 3 Disconnect the connector from the display PCB 8 Removing the control PCB 1...

Страница 167: ...e names of the PCB component parts Lead free solder PbF is used for the PCB When replacing the PCB use the specific solder and soldering iron S1 To DC fan motor S6 To swing motor S21 HA connector S26...

Страница 168: ...ical box according to the Removal of Electrical Box Inserting of the wooden base facilitates the removing work Place a plastic bag under the drain pan to prevent from wetting the floor with remaining...

Страница 169: ...the drain pan toward yourself from the indoor unit body Caution on Mounting Make sure that the hook at the left side is fitted in the groove 2 Removing the swing motor 1 Remove the screw of the swing...

Страница 170: ...rew of the crank assembly 2 Remove the crank assembly by unfastening the hook 3 The figure shows the position of the hook when the crank assembly has been removed 4 How to connect the drain hose in ri...

Страница 171: ...unit 3 Insert the drain hose to the left side 4 Press the removed drain plug into the right side with an Allen wrench 4mm Use a 4mm Allen wrench Caution Do not thrust in the drain plug with a sharp p...

Страница 172: ...bling work Step Procedure Points 1 Undo the fan motor lead wires from the hooks Preparation Remove the drain pan unit according to the Removal of Drain Pan Unit You can remove the fan motor with the h...

Страница 173: ...Indoor Unit SiBE04 824 162 Removal Procedure 4 Unfasten the hook a of the fan motor fixing plate with your thumb 5 Unfasten the hook c 6 Remove the fan motor Step Procedure Points...

Страница 174: ...e compressor being operated and the stop valve being open air may be sucked in to generate an over pressure in refrigeration cycle thus resulting in pipe rupture or accidental injury 3 Lift up the ind...

Страница 175: ...the hook of the pipe fixing plate at the back of the unit and pull out the pipe 2 Widen the auxiliary pipe by about 10 20 degrees 3 Unfasten the lower hook with a flat screwdriver Caution When dismou...

Страница 176: ...ks hold up the heat exchanger by its left side and lift it up toward yourself When mounting the heat exchanger make sure that the hook left is fastened 5 When the left side is lifted the hook at the r...

Страница 177: ...at least 10 min before disassembling work Step Procedure Points 1 Removing the drip proof plate Preparation Remove the heat exchanger according to the Removal of Heat Exchanger 1 Dismount the drip pro...

Страница 178: ...ng plate with your thumb and unfasten the hook b 5 The fan motor fixing plate can be removed from the unit when the hook c is unfastened 2 Removing the fan rotor 1 Dislocate the fan rotor by sliding i...

Страница 179: ...moving the bearing 1 Remove the screw of the drip proof plate left 2 The drip proof plate can be removed when the hooks at 2 positions are unfastened 3 Press the rubber made bearing with force from ou...

Страница 180: ...ning off all power supplies before disassembling work Step Procedure Points 1 Features Take care not to cut your finger by the fins of the heat exchanger The stop valve cover is united with the shelte...

Страница 181: ...he 2 screws right left and lift the top panel 2 Remove the drip proof plate 3 Loosen the 4 screws of the discharge grille The discharge grille has 4 hooks Step Procedure Points DAIKIN INVERTER Top pan...

Страница 182: ...ure 171 4 Loosen the 8 screws of the front panel 5 Undo the hooks Pull and remove the front panel The front panel has 4 hooks The fan motor is united with the front panel Step Procedure Points DAIKIN...

Страница 183: ...clockwise winding 1 Unscrew the washer fitted nut M10 of the propeller fan with a spanner 2 Remove the propeller fan Align mark of the propeller fan with D cut section of the motor shaft when reassem...

Страница 184: ...ad wire 6 Loosen the fixing hooks and release the lead wire Put the lead wire through the back of the motor when reassembling so as not to be entangled with the propeller fan 7 Loosen the 4 screws to...

Страница 185: ...SiBE04 824 174 Removal Procedure 8 Loosen the screw to remove the fan motor fixing frame When reassembling fit the lower hook into the bottom frame Step Procedure Points R7204 Fan motor fixing frame...

Страница 186: ...al Procedure 175 4 Remove the right side panel 1 Loosen the 2 screws on the rear side 2 Unhook the outdoor air thermistor 3 Lift up the guard net to remove Step Procedure Points R7207 R7208 Outdoor ai...

Страница 187: ...Outdoor Unit SiBE04 824 176 Removal Procedure 4 Loosen the 4 screws on the right side 5 Loosen the screw and lift the connection port to remove Step Procedure Points R7210 Right side panel R7211...

Страница 188: ...SiBE04 824 Outdoor Unit Removal Procedure 177 When reassembling make sure to fit the hook 6 Lift up the right side panel to remove Step Procedure Points R7212 R7213 Hook...

Страница 189: ...ower supplies before disassembling work Step Procedure Points Remove the top panel Disconnect the connector for fan motor 1 Remove the electrical box 1 Disconnect the 2 reactor harnesses 2 Cut the cla...

Страница 190: ...dure 179 4 Disconnect the connector for overload protector S40 5 Disconnect the connector for electronic expansion valve coil S20 6 Disconnect the connector for four way valve coil S80 Step Procedure...

Страница 191: ...rge pipe thermistor Pay attention so as not to lose the clip for thermistor 8 Cut the clamp 9 Pull out the heat exchanger thermistor Pay attention so as not to lose the clip Step Procedure Points R722...

Страница 192: ...SiBE04 824 Outdoor Unit Removal Procedure 181 10 Lift and remove the electrical box Step Procedure Points R7223 Electrical Box...

Страница 193: ...wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the outer panels Remove the electrical box 1 Remove the reactor 1 Loosen the screw L...

Страница 194: ...Unit Removal Procedure 183 2 The partition plate has a hook on the lower side Lift and pull the partition plate to remove When reassembling fit the lower hook into the bottom frame Step Procedure Poin...

Страница 195: ...ssembling work Step Procedure Points Remove the outer panels Remove the electrical box 1 Remove the sound blanket 1 Untie the strings and open the sound blanket 2 Lift and remove the sound blanket bod...

Страница 196: ...SiBE04 824 Outdoor Unit Removal Procedure 185 4 Pull the sound blanket inner out Since the piping ports on the sound blanket are torn easily remove the blanket carefully Step Procedure Points R7232...

Страница 197: ...efore disassembling work Step Procedure Points 1 Remove the peripheries 1 Remove the electronic expansion valve coil 2 Remove the terminal cover Remove the four way valve and the sheets of putty so as...

Страница 198: ...urpose wrap the four way valve with wet cloth Splash water over the cloth against becoming too hot keep it below 120 C In pulling the pipes be careful not to over tighten them with pliers The pipes ma...

Страница 199: ...r in mind that if the refrigerant gas is exposed to open flames noxious gas may be generated Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be caref...

Страница 200: ...n the heat exchanger fin Warning Since it may happen that refrigeration oil in the compressor will catch fire prepare wet cloth so as to extinguish fire immediately In case of the difficulty with gas...

Страница 201: ...Outdoor Unit SiBE04 824 190 Removal Procedure Step Procedure Points 3 Heat up the brazed part of the suction side and disconnect 4 Lift the compressor up and remove it R7253 R7254...

Страница 202: ...ies before disassembling work Step Procedure Points 1 Remove the PCB You can remove the PCB when you disconnect the read wires on the terminal board without removing the electrical box PbF Pb free bra...

Страница 203: ...Outdoor Unit SiBE04 824 192 Removal Procedure 4 Loosen the 4 screws 5 Undo the 3 hooks on the upper side 6 Lift and pull out the PCB Step Procedure Points R7258 Screws R7259...

Страница 204: ...t Removal Procedure 193 7 Feature of the PCB S70 fan motor S80 four way valve S90 thermistor outdoor air heat exchanger discharge pipe See page 11 for detail Step Procedure Points R7260 S80 LED A S90...

Страница 205: ...Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the panels and plates Take care not to cut your finger by the fins of t...

Страница 206: ...Procedure 195 The front grille has 4 hooks Slide the discharge grille upwards and remove it 3 Loosen the 6 screws of the front panel 4 Push the front panel and undo the hooks Lift the clamp plate and...

Страница 207: ...hooks and then the right side hook Remove the front panel Lift the front panel and remove it while pushing the left side panel inwards Lift the front panel and undo the right side hook Fit the right s...

Страница 208: ...t Removal Procedure 197 2 Remove the stop valve cover 1 Loosen the screw of the stop valve cover 2 Pull down the stop valve cover to undo the hooks and remove it The stop valve cover has 6 hooks Step...

Страница 209: ...ling work Step Procedure Points Remove the top panel and the front panel 1 Remove the electrical box cover This procedure is not necessary to remove the propeller fan only 1 Loosen the screw on the ba...

Страница 210: ...SiBE04 824 Outdoor Unit Removal Procedure 199 2 Remove the fan motor 1 Disconnect the connector for fan motor S70 Step Procedure Points...

Страница 211: ...2 The illustration shows arrangement of the fan motor lead wire 3 Unscrew the washer fitted nut M10 of the propeller fan with a spanner Align mark of the propeller fan with D cut section of the motor...

Страница 212: ...oval Procedure 201 4 Remove the 4 screws from the fan motor 5 Pull the fan motor out Put the lead wire through the back of the motor when reassembling so as not to be entangled with the propeller fan...

Страница 213: ...more after turning off all power supplies before disassembling work Step Procedure Points Remove the top panel and the front panel 1 Remove the shield plate 1 Loosen the 2 screws 2 Slide the cover upw...

Страница 214: ...SiBE04 824 Outdoor Unit Removal Procedure 203 4 Disconnect the 2 earth wires 5 Loosen the 3 screws of the right side panel 6 Loosen the fixing screw of the electrical box Step Procedure Points...

Страница 215: ...er back when reassembling 7 Disconnect the connectors of the front side S20 electronic expansion valve S40 overload protector S80 four way valve S90 thermistors discharge pipe outdoor air heat exchang...

Страница 216: ...SiBE04 824 Outdoor Unit Removal Procedure 205 9 Release the clamp and undo the wire from the hook 10 Lift the electrical box and remove it Step Procedure Points...

Страница 217: ...inutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the electrical box 1 Remove the PCB 1 Disconnect the connectors for the control PCB S52 S102...

Страница 218: ...l Procedure 207 4 Undo the hook on the right 5 Open the cable way board 6 Disconnect the harnesses 1 Black 2 White 3 Red L1 Black L2 Brown N1 White N2 Blue 7 Disconnect the 2 harnesses for the reactor...

Страница 219: ...Outdoor Unit SiBE04 824 208 Removal Procedure 8 Loosen the 3 fixing screws for the main PCB 9 Undo the 4 hooks 10 Lift up and remove the PCB Step Procedure Points...

Страница 220: ...o wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the sound blanket back 2 Remove the sound blanket outer Since the piping ports o...

Страница 221: ...inner are torn easily remove the blanket carefully 6 Release the discharge pipe thermistor Pay attention to the direction of the clip so as not to touch the lead wire of the thermistor when reassembl...

Страница 222: ...ssively by pliers when withdrawing it Caution Be careful about the four way valve pipes and so on which were heated up by a gas brazing machine so as not to get burnt your hands Cautions for restorati...

Страница 223: ...y with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit by a miniature copper tube cutter in order to make it easy to disconnect No...

Страница 224: ...re to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the lead wires of the compressor Be careful...

Страница 225: ...pump models as representative Warning Ventilate when refrigerant leaks during the work If refrigerant contacts fire it will cause to arise toxic gas Provide a protective sheet or a steel plate so tha...

Страница 226: ...vide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be careful so as not to burn the compressor terminals or the name plate 7 Heat up the brazed part of the...

Страница 227: ...Outdoor Unit SiBE04 824 216 Removal Procedure...

Страница 228: ...SiBE04 824 Others 217 Part 8 Others 1 Others 218 1 1 Test Run from the Remote Controller 218 1 2 Jumper Settings 219 1 3 Application of Silicon Grease to a Power Transistor and a Diode Bridge 220...

Страница 229: ...and Testing 1 Measure the supply voltage and make sure that it falls in the specified range 2 Trial operation should be carried out in either cooling or heating mode 3 Carry out the test operation in...

Страница 230: ...per JA on the control PCB Wireless remote controller 1 Slide the front cover and take it off 2 Cut the address jumper J4 1 2 2 Jumper Setting R4417 ADDRESS JA ADDRESS JA EXIST 1 CUT 2 ADDRESS J4 EXIST...

Страница 231: ...istor and the diode bridge Applying the paste should be implemented in accordance with the following instruction Remark There is the possibility of failure with smoke in case of bad heat radiation To...

Страница 232: ...SiBE04 824 Appendix 221 Part 9 Appendix 1 Piping Diagrams 222 1 1 Indoor Units 222 1 2 Outdoor Units 223 2 Wiring Diagrams 224 2 1 Indoor Units 224 2 2 Outdoor Units 225...

Страница 233: ...FLOW FAN FAN MOTOR ON HEAT EXCH THERMISTOR INDOOR UNIT M 6 4CuT 7 0CuT 9 5CuT HEAT EXCHANGER REFRIGERANT FLOW HEATING COOLING 6 4CuT 6 4CuT 4D047912J FIELD PIPING FIELD PIPING 6 4CuT 12 7CuT 7 9CuT M...

Страница 234: ...T 4 0 ID 2 0CuT REFRIGERANT FLOW COOLING HEATING 9 5CuT 3D047316J OUTDOOR UNIT 12 7CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT DISCHARGE PIPE THERMISTOR HEAT EXCHANGER THERMIST...

Страница 235: ...POWER SUPPLY IS ON AGAIN TURNED OFF AND THEN BACK NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF FIELD WIRING CAUTION 2 3 1 OUTDOOR 3D051268B CONTROLLER WIRELESS PCB3 PCB4 INTELLIGENT EYE REMOTE S...

Страница 236: ...6 t BLK S70 C74 C75 1 HC4 WHT 2 ORG 1 _ _ 3 M BRN 4 M1F BLU _ _ C94 3 15A 7 FU2 RED C95 BLK 2 BLK Q1L R12T S40 BLK GRY 1 S30 W W _ 5 BLU M1C IPM1 V V 3 YLW U 1 U N 2 Z1C RED t 3D046707L indoor SA2 ou...

Страница 237: ...Wiring Diagrams SiBE04 824 226 Appendix...

Страница 238: ...eck No 06 130 check No 07 131 check No 08 131 check No 09 132 check No 10 132 check No 11 132 check No 12 133 check No 13 133 check No 14 135 check No 15 135 clamp plate 195 comfort airflow mode 18 co...

Страница 239: ...ont panel 140 171 195 FU1 8 10 12 FU2 10 12 FU3 10 12 function of thermistor 30 functions 2 fuse 8 10 12 H H0 105 106 H6 108 H8 109 110 H9 112 HA 8 156 Hall IC 19 85 HC3 10 HC4 10 heat exchanger 163 1...

Страница 240: ...in temperature rise 116 radiation fin thermistor 113 reactor 182 reactor harnesses 178 remote controller 78 room temperature thermistor 87 RTH1 8 S S1 8 156 S10 10 12 S101 12 S102 12 206 S11 10 S20 10...

Страница 241: ...purifying filter 28 top panel 170 194 troubleshooting 71 81 troubleshooting with LED indication 76 turning speed pulse input on the outdoor unit PCB check 135 U U0 122 124 U2 126 U4 88 U7 127 UA 90 u...

Страница 242: ...peak cut control 38 high pressure control in cooling 103 I indoor unit PCB abnormality 82 input current control 37 input over current detection 96 installation condition check 131 insufficient gas 12...

Страница 243: ...or related abnormality outdoor unit 112 thermistor resistance check 130 thermostat control 22 trial operation from remote controller 218 turning speed pulse input on the outdoor unit PCB check 135 U u...

Страница 244: ...Specifications designs and other content appearing in this brochure are current as of February 2008 but subject to change without notice SiBE 04 824 Printed in Japan 02 2008 B AK...

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