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SiBE04-809

Troubleshooting

Service Diagnosis

97

4.17

High

Pressure Control in Cooling

Remote
Controller
Display

F6

Method of
Malfunction
Detection

High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the
temperature being sensed by the 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 temperature drops below 54°C.

Supposed
Causes

The installation space is not large enough.

Faulty outdoor unit fan

Faulty electronic expansion valve

Faulty defrost thermistor

Faulty outdoor unit PCB

Faulty stop valve

Dirty heat exchanger

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Содержание ARXG35E3V1B

Страница 1: ...SiBE04 809 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type E Series...

Страница 2: ...BE04 809 Table of Contents i Inverter Pair E Series Heat Pump Indoor Unit FTXG25EV1BW FTXG35EV1BW FTXG25EV1BS FTXG35EV1BS ATXG25EV1B ATXG35EV1B Outdoor Unit RXG25E3V1B RXG35E3V1B ARXG25E3V1B ARXG35E3V...

Страница 3: ...Indoor Units 18 1 5 Programme Dry Function 19 1 6 Automatic Operation 20 1 7 Thermostat Control 21 1 8 NIGHT SET Mode 22 1 9 INTELLIGENT EYE 23 1 10 Inverter POWERFUL Operation 24 1 11 Other Function...

Страница 4: ...t 83 4 6 Front Panel Open Close Fault 84 4 7 Signal Transmission Error between Indoor and Outdoor Unit 85 4 8 Signal Transmission Error between Indoor Unit and Wired Remote Controller 86 4 9 Unspecifi...

Страница 5: ...158 1 12 Removal of Fan Rotor and Fan Motor 161 2 Outdoor Unit 164 2 1 Removal of Panels and Fan Motor 164 2 2 Removal of Electrical Box 173 2 3 Removal of Reactor and Partition Plate 177 2 4 Removal...

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 809 x...

Страница 12: ...SiBE04 809 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...

Страница 13: ...ur On Off Timer 3 D Airflow Night Set Mode Comfort Airflow Mode Worry Free Reliability Durability Auto restart after Power Failure 3 Step Airflow H P Only Self Diagnosis Digital LED Display Comfort Co...

Страница 14: ...SiBE04 809 Specifications 3 Part 2 Specifications 1 Specifications 4...

Страница 15: ...izontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 15 0 14 0 13 0 15 0 14 0 13 0 15 0 14 0 13 0 15 0 14 0 13 Power Consumption Rated...

Страница 16: ...Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 15 0 14 0 13 0 15 0 14 0 13 0 15 0 14 0 13 0 15 0 14 0 13 Power Consumption Rated W 30 30 30 30 30 30...

Страница 17: ...rd Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 15 0 14 0 13 0 15 0 14 0 13 0 15 0 14 0 13 0 15 0 14 0 13 Power Consumption Rated W 30 30 30 30...

Страница 18: ...iBE04 809 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: ...ENT EYE sensor PCB and control PCB 5 S41 Connector for swing motor 6 S46 Connector for signal receiver PCB 7 S49 Connector for reduction motor front panel mechanism 8 S51 Connector for front panel lim...

Страница 20: ...am Printed Circuit Board Connector Wiring Diagram 9 PCB Detail PCB 1 Control PCB indoor unit PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE sensor PCB S46 V1 S21 LED A R8421 FU1 S1 S41 S51 JB JA JC S...

Страница 21: ...control PCB 1 S10 S50 Connector 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...

Страница 22: ...Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 11 PCB Detail PCB 1 Filter PCB PCB 2 Control PCB outdoor unit F3 S11 3P203203 V3 V2 S70 S30 HN3 FU1 LED A FU2 2P203198 S40...

Страница 23: ...Printed Circuit Board Connector Wiring Diagram SiBE04 809 12 Printed Circuit Board Connector Wiring Diagram...

Страница 24: ...10 Inverter POWERFUL Operation 24 1 11 Other Functions 25 2 Function of Thermistor 27 2 1 Heat Pump Model 27 3 Control Specification 28 3 1 Mode Hierarchy 28 3 2 Frequency Control 29 3 3 Controls at M...

Страница 25: ...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 26: ...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 powe...

Страница 27: ...an Outline of 3 D Airflow Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room This function is effective for starting the air conditione...

Страница 28: ...a Control Flow Timing Chart Opening the front panel fully Start Running Output of the D signal after the front panel starts moving Making the fan rotate when the flap passes over the fan banned area O...

Страница 29: ...he FAN setting button is set to automatic Note 1 During POWERFUL operation fan operates H tap 50 70 rpm 2 Fan stops during defrost operation Automatic Airflow Control for Heating On heating mode the i...

Страница 30: ...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 31: ...temperature equals remote controller setting temperature plus correction value correction value 0 deg 3 Operation ON OFF point and mode switching point are as follows Heating Cooling switching point...

Страница 32: ...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 33: ...T 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 slightl...

Страница 34: ...omputer 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 Heatin...

Страница 35: ...t temperature is shifted by 1 C 1 10 Inverter POWERFUL Operation Outline In order to exploit the cooling and heating capacity to full extent operate the air conditioner by increasing the indoor fan ro...

Страница 36: ...e operation mode refers to the following table In the case of multi system operation there are times when the unit does not activate with this button Note When the ON OFF button is pressed for 10 sec...

Страница 37: ...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 38: ...drops or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the discharge thermistor C Indoor Heat Exchanger Thermistor 1 The indoor heat exchanger thermistor i...

Страница 39: ...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 40: ...Forced 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 pro...

Страница 41: ...equency up and down 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 Limit of frequency variation w...

Страница 42: ...side Detail Outside temperature 10 C Control A preheating for normal state Outside temperature 10 C Control B preheating of increased capacity Control A ON condition Discharge pipe temperature 10 C F...

Страница 43: ...cooling and defrosting current must not be conducted In order to eliminate the switching sound as the four way valve coil switches from ON to OFF when the heating is stopped the delay switch of the fo...

Страница 44: ...tions 1 When starting compressor for heating 2 When the operating mode changes to cooling from heating 3 When starting compressor for rushing defrosting or resetting 4 When starting compressor for the...

Страница 45: ...the discharge pipe temperature rises above a certain level the operating frequency upper limit is set to keep this temperature from going up further Detail Divide the Zone Management within the Zones...

Страница 46: ...quency is pulled down by 2Hz every second until it reaches the steady zone Keep zone The present maximum frequency goes on Reset zone Limit of the frequency is cancelled Stop zone After 2 5 s in this...

Страница 47: ...eezing of the indoor heat exchanger The signal from the indoor unit must be divided into the zones as the followings Detail Conditions for Start Controlling Judge the controlling start with the indoor...

Страница 48: ...or unit allow the operating frequency limitation and prevent abnormal high pressure The signal from the indoor unit must be divided as follows Detail Conditions for Start Controlling Judge the control...

Страница 49: ...according to the conditions of the temperature of the outdoor air and outdoor heat exchanger Detail Operation stop depending on the outdoor air temperature Compressor operation turns OFF under the con...

Страница 50: ...39 Frequency Compressor Four way valve Fan Electronic expansion valve opening ON OFF ON OFF ON OFF 0Hz 5sec 350pulse 450pulse 450pulse Initial opening PI control 5sec 50sec 50sec 660sec 60sec 76Hz 86...

Страница 51: ...ted Feedback Control 1 Discharge 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 whe...

Страница 52: ...arge 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 the heat exch...

Страница 53: ...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 54: ...three 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 mod...

Страница 55: ...l and not in the 3 minute standby 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 Star...

Страница 56: ...utions 47 2 2 Names of Parts 49 2 3 Preparation Before Operation 52 2 4 AUTO DRY COOL HEAT FAN Operation 55 2 5 Adjusting the Airflow Detection 57 2 6 POWERFUL Operation 59 2 7 OUTDOOR UNIT QUIET Oper...

Страница 57: ...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 58: ...heaters or gas range If the air conditioner is not cooling heating properly the refrigerant may be leaking so call your dealer When carrying out repairs accompanying adding refrigerant check the conte...

Страница 59: ...etc Do not place objects in direct proximity of the outdoor unit and do not let leaves and other debris accumulate around the unit Leaves are a hotbed for small animals which can enter the unit Once i...

Страница 60: ...SiBE04 809 Instruction Operation Manual 49 2 2 Names of Parts 4 Names of parts Indoor Unit 15 14 18 12 13 17 1 3 4 6 2 11 16 5 7 8 9 10 With the panel closed...

Страница 61: ...s useful when the remote controller is missing 13 Room temperature sensor It senses the air temperature around the unit 14 Operation lamp green 15 TIMER lamp yellow page 18 16 INTELLIGENT EYE lamp gre...

Страница 62: ...ce to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN page 10 8 QUIET button OUTDOOR UNIT QUIET operation page 15 9 FAN setting...

Страница 63: ...pe and replace the two old batteries together When the system is not used for a long time take the batteries out We recommend replacing once a year although if the remote controller display begins to...

Страница 64: ...e controller holder Turn on the power breaker Turning on the power breaker will cause the panel and flap to open once and then close again This is a normal procedure CAUTION ATTENTION During operation...

Страница 65: ...in spring or autumn turn the breaker OFF Use the air conditioner in the following conditions Operation outside this humidity or temperature range may cause a safety device to disable the system 1 3 2...

Страница 66: ...ation mode Each pressing of the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN 2 Press ON OFF button The operation lamp will light up and the panel will open To stop operation 3 P...

Страница 67: ...re the room gets warmer In heating operation 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...

Страница 68: ...on press SWING button once more The flap will stop moving disappears from the LCD To adjust the vertical blades louvers 3 Press SWING button is displayed on the LCD 4 When the louvers have reached the...

Страница 69: ...When SWING button is selected the flap swinging range depends on the operation mode See the figure Three Dimensional 3 D Airflow Using three dimensional airflow circulates cold air which tends to col...

Страница 70: ...from the LCD NOTE Notes on POWERFUL operation POWERFUL Operation cannot be used together with QUIET or COMFORT Operation Priority is given to the function of whichever button is pressed last This doe...

Страница 71: ...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 available in COOL HEAT and AUTO modes This is...

Страница 72: ...Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD EX 1 2 When somebody in the room Normal operation The INTELLIGE...

Страница 73: ...ty changes according to indoor unit location the speed of passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as pas...

Страница 74: ...time setting by 10 minutes Holding down either button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER operation 4 Press CANCEL button The TI...

Страница 75: ...ton increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly 3 Press ON TIMER button again The TIMER lamp lights up To cancel ON TIMER operation 4 P...

Страница 76: ...shade after washing 4 Attach the front panel Place the revolving axes on either side of the front panel into the holes and slowly close Press either side of the front panel CAUTION Units Don t touch...

Страница 77: ...ers with water or clean them with vacuum cleaner If the dust does not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to cl...

Страница 78: ...der Titanium Apatite Photocatalytic Air Purifying Filter contact to the service shop there you bought the air conditioner Dispose of old filters as burnable waste Check that the base stand and other f...

Страница 79: ...ode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mist comes out of the indoor unit This happens when the air in the room is cooled into mist by the col...

Страница 80: ...ERATION lamp flashes Are the air filters clean Is there anything to block the air inlet or the outlet of the indoor and the outdoor units Clean the air filters or take all obstacles away and turn the...

Страница 81: ...revent potential negative consequences for the environment and human health Please contact the installer or local authority for more information Batteries must be removed from the remote controller an...

Страница 82: ...Voltage between Indoor and Outdoor Units 87 4 10 Outdoor Unit PCB Abnormality 88 4 11 OL Activation Compressor Overload 89 4 12 Compressor Lock 90 4 13 DC Fan Lock 91 4 14 Input Over Current Detection...

Страница 83: ...pment 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 La...

Страница 84: ...r heat pump model and cooling operation cannot be used when the outside temperature is below 10 C Diagnosis with remote controller indication 77 Equipment operates but does not cool or does not heat o...

Страница 85: ...us beep is produced The code indication changes 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...

Страница 86: ...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 87: ...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 88: ...panel open close fault 84 C9 Room temperature thermistor abnormality 83 Outdoor Unit E1 Outdoor unit PCB abnormality 88 E5 OL activation compressor overload 89 E6 Compressor lock 90 E7 DC fan lock 91...

Страница 89: ...ero cross detection in approximately 10 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Connector conn...

Страница 90: ...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 91: ...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 92: ...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 93: ...ect connector or parts damage may be occurred Replace fan motor Replace indoor unit PCB Replace indoor unit PCB Replace indoor unit PCB Note Motor may break when the motor connector is disconnected wh...

Страница 94: ...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 95: ...the breaker off 2 Remove the decorative plate 3 Remove the slot in panel 4 Put the plug in or turn the breaker on Wait until the initialization finishes 5 Operate the unit by the indoor unit ON OFF s...

Страница 96: ...hort circuit inside the fan motor winding Troubleshooting Check No 10 Refer to P 121 Check the voltage of the indoor unit outdoor unit connection wires between No 1 and No 3 and between No 2 and No 3...

Страница 97: ...Malfunction Decision Conditions When the data sent from the indoor unit cannot be received normally or when the content of the data is abnormal Supposed Causes Faulty remote controller cable Faulty r...

Страница 98: ...es Wrong 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 conne...

Страница 99: ...g order Supposed Causes Out of control of microcomputer caused by external factors Noise Momentary fall of voltage Momentary power loss Defective outdoor unit PCB Troubleshooting R7183 Caution Be sure...

Страница 100: ...shooting Check No 04 Refer to P 116 Check No 05 Refer to P 117 Check No 06 Refer to P 118 Check No 11 Refer to P 121 R7137 Caution Be sure to turn off power switch before connect or disconnect connect...

Страница 101: ...essor locked Compressor harness disconnected Troubleshooting Turn off the power Disconnect the harnesses U V and W R8065 Caution Be sure to turn off power switch before connect or disconnect connector...

Страница 102: ...run for about 10 minutes 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 No 15...

Страница 103: ...120 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 the wires have been...

Страница 104: ...ked to see if they function within their normal ranges in the operating mode Malfunction Decision Conditions A following condition continues over 10 minute after operating 5 minutes Cooling dry operat...

Страница 105: ...mistor Refer to 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 co...

Страница 106: ...pipe thermistor rises above C the compressor will stop The error is cleared when the temperature has dropped below C The error counter will reset itself if this or any other error does not occur duri...

Страница 107: ...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 108: ...sensed by the 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 cl...

Страница 109: ...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 110: ...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 Troubleshooting Caution...

Страница 111: ...h the position detection circuit Malfunction Decision Conditions The compressor fails to start in about 15 seconds after the compressor run command signal is sent Clearing condition Continuous run for...

Страница 112: ...inverter checker Turn off the power Disconnect the harnesses U V and W Check the electrolytic capacitor voltage Electricals or compressor harnesses connected as specified Replace the outdoor unit PCB...

Страница 113: ...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 114: ...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 115: ...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 116: ...king the radiation fin thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 80 C Reset is made when the temperature drops b...

Страница 117: ...ctricals the outdoor unit fan gets started when the radiation fin temperature rises above 75 C and stops itself when it drops below 70 C Turn off the power and turn it on again Check the radiation fin...

Страница 118: ...ion 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 other err...

Страница 119: ...Check the radiation fin temperature Check No 07 Check the installation condition NO YES YES Radiation fin dirty Above 90 C Thermistor as specified in its characteristic chart Check No 06 Check the the...

Страница 120: ...s running An output over current 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 Clearing condition Continuo...

Страница 121: ...nput over current check the wires again 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 Tur...

Страница 122: ...itions 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 difference...

Страница 123: ...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 repla...

Страница 124: ...on circuit Malfunction Decision Conditions An over voltage signal is fed from the over voltage detection circuit to the microcomputer The voltage is over 400V The system will be shut down if the error...

Страница 125: ...onnect connector or parts damage may be occurred NO YES YES NO YES Precaution before turning on the power again NO Replace fan motor and outdoor unit PCB Replace the outdoor unit PCB Check the supply...

Страница 126: ...ed successively 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 Defecti...

Страница 127: ...nnector 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 4 If no EV...

Страница 128: ...er and turn it 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 Repla...

Страница 129: ...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 130: ...r winds blowing in the opposite direction Does the discharged air from other outdoor unit cause an increase of the suction air temperature Change the position of the air discharge grille or the instal...

Страница 131: ...ger and air filter dirty Is the connection pipe deformed Is the stop valve open High Replace the compressor Open the stop valve Replace the pipe installed at the site Clean Replace the compressor Disc...

Страница 132: ...the power supply waveform is a sine wave Fig 1 Check to see if there is waveform disturbance near the zero cross sections circled in Fig 2 5 1 9 Inverter Units Refrigerant System Check Check No 11 Fig...

Страница 133: ...sconnect 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 connector S70 4 Make a turn of the fan motor with a hand and...

Страница 134: ...r 138 1 7 Removal of Outlet Grille 141 1 8 Removal of Vertical Blades and Swing Motor 142 1 9 Removal of Electrical Box 146 1 10 Removal of PCB 152 1 11 Removal of Heat Exchanger 158 1 12 Removal of F...

Страница 135: ...cedure Points 1 Features When the signal receiver catches a signal from the remote controller it produces beep sound and the operation lamp blinks 2 Remove the air filters 1 Hold the front panel by th...

Страница 136: ...hen installing When installing insert 2 hooks of the air filter completely 3 Remove the air purifying filter The right and left air purifying filters are interchangeable 1 Titanium Apatite Photo catal...

Страница 137: ...e removal procedure of front grille when the panels are closed Slide the front panel side to side to release each axis When assembling align the right and left axes with grooves in turn and insert the...

Страница 138: ...axes of the slot in panel from above Push the lower part of the slot in panel and attach to the running gear 3 Remove the service cover The service cover has no screw Hooks can be caught from either...

Страница 139: ...has 2 hooks on the right side and 4 hooks on the lower side When assembling fit the right side hooks and insert the lower hooks while bending the service cover 3 Loosen the screw on the service cover...

Страница 140: ...it Removal Procedure 129 4 Pull down and remove the service cover of electrical box 5 Loosen the screw on the fixing plate 6 Push the white section on the terminal board and release the relay wires St...

Страница 141: ...ews 2 The front grille has 3 hooks on the upper side 3 Lift the upper part of the front grille and release the hooks Release the center hook first Be careful not to cut your finger by the fins of the...

Страница 142: ...ase the both sides hooks 5 Pull the front grille out horizontally andremove it When assembling install the front grille horizontally so as not to stuff the flap inside When assembling make sure the th...

Страница 143: ...nts Remove the front grille 1 Remove the assembly of front panel mechanism 1 The back of the front grilles 2 Loosen the 2 screws of the assembly left 3 Remove the assembly When assembling insert the l...

Страница 144: ...E04 809 Indoor Unit Removal Procedure 133 5 Loosen the 2 screws of the assembly right 6 Remove the assembly When assembling insert the lower rack plate first Step Procedure Points Lower rack plate R50...

Страница 145: ...When you demand small parts like cogs and rollers order a set of assembly 3 Keep the assembly horizontally and undo the hooks on side and lower sides 4 Remove the running gear Be careful so as not to...

Страница 146: ...wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the front grille 1 Remove the lamp cover 1 Release the 2 hooks carefully 2 Release t...

Страница 147: ...assembling work Step Procedure Points 1 Remove the horizontal blade The horizontal blade is single Installation procedure 1 Since key pattern hook is provided rotate the blade and fit it to the left p...

Страница 148: ...emove the swing motor The swing motor for horizontal blade is on the left side 1 Pull out and remove the swing motor connector 2 Loosen the screw 3 Pull toward left and remove the swing motor The axis...

Страница 149: ...ure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the front grille 1 Remove the assembly of reduction motor 1 U...

Страница 150: ...SiBE04 809 Indoor Unit Removal Procedure 139 2 Remove the reduction motor 1 Loosen the screw 2 Undo the one hook on the opposite upper side 3 Undo the one hook in the center Step Procedure Points...

Страница 151: ...Removal Procedure 4 Hold the cog horizontally and open the motor side toward up 5 Layout of the harness of the motor 6 Lift and remove the reduction motor 7 Pull and disconnect the connector for the m...

Страница 152: ...Procedure Points Remove the front grille Remove the assembly of the reduction motor 1 Remove the outlet grille 1 Insert your finger into the hole and push up the hook to release it The outlet grille...

Страница 153: ...ing Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the assembly of the outlet grille 1 Remove the vertical blades 1 Rele...

Страница 154: ...interlock rod from the vertical blades 4 Pull out the interlock rod from the swing motor side You cannot dismantle the caulking section 5 Push the hooks on the back of the vertical blades and remove...

Страница 155: ...or Unit SiBE04 809 144 Removal Procedure 2 Remove the swing motor 1 Disconnect the connector for the swing motor 2 Loosen the screw and remove the swing motor 3 Peel the fixing tape Step Procedure Poi...

Страница 156: ...Indoor Unit Removal Procedure 145 4 Loosen the screw and pull out the swing motor The projection is fragile Be careful so as not to break it 5 Disconnect the connector for the swing motor Step Proced...

Страница 157: ...grille Discharge the static electricity from your body before touching the electrical parts like signal receiver PCB It may cause malfunction of PCB 1 Remove the electrical box 1 Loosen the screw of...

Страница 158: ...SiBE04 809 Indoor Unit Removal Procedure 147 3 Push the hook on the right side and remove the electrical box cover 4 Layout of the wiring 5 Loosen the screw of the earth Step Procedure Points...

Страница 159: ...swing motors for horizontal and vertical blades S41 The harnesses for the horizontal swing motor and the vertical swing motor are united 7 Release the harness from the hook 8 Disconnect the connector...

Страница 160: ...panel mechanism S49 11 Release the harness from the hook 12 Release the heat exchanger thermistor Pay attention so as not to lose the clip 13 Release the thermistor lead wire from the hook When reasse...

Страница 161: ...Removal Procedure 14 Layout of the lead wire for the heat exchanger thermistor 15 Loosen the screw of the electrical box 16 Tilt the front part of the electrical box to the right slightly and pull it...

Страница 162: ...SiBE04 809 Indoor Unit Removal Procedure 151 When assembling push the electrical box upright and make sure to fit the hook on the backside Step Procedure Points...

Страница 163: ...rning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the electrical box 1 Remove the control PCB 1 Lift up the cover of...

Страница 164: ...SiBE04 809 Indoor Unit Removal Procedure 153 3 Loosen the screws of the earth 4 Release the front hook and the 2 upper hooks and remove the shelter Step Procedure Points...

Страница 165: ...Indoor Unit SiBE04 809 154 Removal Procedure 5 Layout of the wiring 6 Loosen the screw and pull out the terminal board Step Procedure Points...

Страница 166: ...minals from the board Pb free soldering is adopted for PCB When replacing PCB use the particular solder and iron Black 1 White 2 Red 3 9 Cut the clamps Clamps should be used all the time Fix it as it...

Страница 167: ...809 156 Removal Procedure 11 Release the hooks and draw out the harness from the ditch 12 Loosen the 2 screws and remove the PCB 13 Control PCB Step Procedure Points S46 V1 S21 R5062 FU1 S1 S41 S51JB...

Страница 168: ...emoval Procedure 157 2 Remove the signal receiver PCB 1 Release the hook with a flat screwdriver 2 Release the hook and remove the receiver unit 3 Release the 2 hooks and remove the signal receiver PC...

Страница 169: ...d refrigerant R410A into refrigerant cycle Contaminating of air or other gas causes abnormal high pressure in refrigerating cycle and this results in pipe breakage or personal injuries Pay attention s...

Страница 170: ...Procedure 159 3 Remove the piping fixture plate 1 Release the 2 hooks with a flat screwdriver from the front side 2 Release the hook from the back side Lift up the lower part of the fixture plate and...

Страница 171: ...the 2 screws on the left 3 Push the fixing hook on the right side and lift the heat exchanger Caution When removing or reinstalling heat exchanger be sure to wear protective gloves or wrap the heat ex...

Страница 172: ...edure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the right side plate 1 Loosen the 2 screws 2 Remove the r...

Страница 173: ...Indoor Unit SiBE04 809 162 Removal Procedure 3 Remove the bearing 1 Lift up the right part of the fan rotor and motor and slide them to the rightward to remove Step Procedure Points...

Страница 174: ...door Unit Removal Procedure 163 2 Hold the lower outside of the bearing Push it inwards and lift to release the hook 4 Remove the fan motor 1 Loosen the fixing screw and remove the fan motor Step Proc...

Страница 175: ...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 shelter When re...

Страница 176: ...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 177: ...ocedure 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 178: ...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 179: ...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 180: ...utdoor Unit Removal Procedure 169 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 181: ...emoval Procedure 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 182: ...SiBE04 809 Outdoor Unit Removal Procedure 171 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 183: ...Outdoor Unit SiBE04 809 172 Removal Procedure When reassembling make sure to fit the hook 6 Lift up the right side panel to remove Step Procedure Points R7212 R7213 Hook...

Страница 184: ...wer 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 clam...

Страница 185: ...for overload protector S40 The positions of connectors on PCB are different according to the models 5 Disconnect the connector for electronic expansion valve coil S20 6 Disconnect the connector for fo...

Страница 186: ...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 187: ...Outdoor Unit SiBE04 809 176 Removal Procedure 10 Lift and remove the electrical box Step Procedure Points R7223 Electrical Box...

Страница 188: ...ait 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 Li...

Страница 189: ...809 178 Removal Procedure 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 190: ...sembling 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 body...

Страница 191: ...Outdoor Unit SiBE04 809 180 Removal Procedure 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 192: ...before 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...

Страница 193: ...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 194: ...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 195: ...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 b...

Страница 196: ...SiBE04 809 Outdoor Unit Removal Procedure 185 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 197: ...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 brazing is ad...

Страница 198: ...Unit Removal Procedure 187 4 Loosen the 4 screws The positions of screws are different according to the models 5 Undo the 3 hooks on the upper side 6 Lift and pull out the PCB Step Procedure Points R...

Страница 199: ...9 188 Removal Procedure 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 200: ...SiBE04 809 Others 189 Part 8 Others 1 Others 190 1 1 Test Run from the Remote Controller 190 1 2 Jumper Settings 191 1 3 Application of Silicon Grease to a Power Transistor and a Diode Bridge 192...

Страница 201: ...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 accordance...

Страница 202: ...ate 4 tabs 4 Cut the address jumper 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 R2871 R2872 Jumper On indo...

Страница 203: ...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 204: ...SiBE04 809 Appendix 193 Part 9 Appendix 1 Piping Diagrams 194 1 1 Indoor Units 194 1 2 Outdoor Units 194 2 Wiring Diagrams 195 2 1 Indoor Units 195 2 2 Outdoor Units 195...

Страница 205: ...CuT 7 0CuT 4D045301B MUFFLER WITH FILTER 7 9CuT 9 5CuT 7 9CuT 7 0CuT LIQUID STOP VALVE M HEAT EXCHANGER MUFFLER MUFFLER WITH FILTER HEAT EXCHANGER THERMISTOR 6 4CuT FIELD PIPING 9 5CuT HEATING 6 4CuT...

Страница 206: ...2C L1R 1 REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS NOTE outdoor S90 C118 S40 FIELD WIRING S50 ORG BLU RED BRN WHT M 1 C5 C6 MRM20 E1 S80 3 1 IN CASE OF COOLING ONLY TYPE GRN E2 GRN YLW BLK BLK...

Страница 207: ...Wiring Diagrams SiBE04 809 196 Appendix...

Страница 208: ...B check 122 check No 01 116 check No 04 116 check No 05 117 check No 06 118 check No 07 119 check No 08 120 check No 09 120 check No 10 121 check No 11 121 check No 13 122 check No 15 122 comfort airf...

Страница 209: ...anel 126 166 front panel control 17 front panel mechanism 8 84 132 149 front panel open close fault 84 FU1 8 10 FU2 10 FU3 10 function of thermistor 27 functions list of 2 fuse 8 10 G grille front gri...

Страница 210: ...eration 24 44 59 preheating operation 31 preparation before operation 52 pressure equalization control 41 printed circuit board PCB control PCB indoor unit 9 control PCB outdoor unit 11 156 filter PCB...

Страница 211: ...mistor or related abnormality indoor unit 83 thermistor or related abnormality outdoor unit 103 thermistor resistance check 118 thermostat control 21 TIMER operation 63 titanium apatite photocatalytic...

Страница 212: ...eze up protection control 36 freeze up protection control or high pressure control 79 frequency control 29 frequency principle 14 front panel open close fault 84 function of thermistor heat pump model...

Страница 213: ...115 silicon grease 192 starting control flow 17 starting timing chart 17 T target discharge pipe temperature control 42 thermistor or related abnormality indoor unit 83 thermistor or related abnormali...

Страница 214: ...Specifications designs and other content appearing in this brochure are current as of April 2008 but subject to change without notice SiBE04 809 Printed in Japan 04 2008 B AK...

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