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SiBE04-809

Function of Thermistor

Function and Control

27

2.

Function of

Thermistor

2.1

Heat Pump Model

A

Outdoor Heat

Exchanger
Thermistor

1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature.

The system sets a target discharge temperature according to the outdoor and indoor heat
exchanger temperature, and controls the electronic expansion valve opening so that the
target discharge temperature can be obtained.

2. The outdoor heat exchanger thermistor is used for detecting disconnection of the discharge

thermistor when cooling.
When the discharge pipe temperature becomes lower than the outdoor heat exchanger
temperature, the discharge pipe thermistor is judged as disconnected.

3. The outdoor heat exchanger thermistor is used for high pressure protection during cooling

operation.

B

Discharge

Pipe Thermistor

1. The discharge pipe thermistor is used for controlling temperature of the discharge pipe.

If the temperature of discharge pipe (used 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 discharge

thermistor.

C

Indoor Heat

Exchanger
Thermistor

1. The indoor heat exchanger thermistor is used for controlling target discharge temperature.

The system sets a target discharge temperature according to the outdoor and indoor heat
exchanger temperature, and controls the electronic expansion valve opening so that the
target discharge temperature can be obtained.

2. The indoor heat exchanger thermistor is used for preventing freezing.

During the cooling operation, if the temperature drops abnormally, the operating frequency
becomes lower, then the operation halts.

3. The indoor heat exchanger thermistor is used for anti-icing control.

During the cooling operation, if the heat exchanger temperature in the room where operation
is halted becomes -1°C, it is assumed as icing.

4. During heating, the indoor heat exchanger thermistor is used for detecting disconnection of

the discharge pipe thermistor.
When the discharge pipe temperature becomes lower than the indoor heat exchanger
temperature, the discharge pipe thermistor is judged as disconnected.
The indoor heat exchanger thermistor is also used for preventing abnormal high pressure.

Four way valve

Compressor

(R3305)

A

C

B

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Содержание ARXG25E3V1B

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

Страница 2: ...iBE04 809 Table of Contents i Inverter Pair E Series Heat Pump Indoor Unit FTXG25EV1BW FTXG35EV1BW FTXG25EV1BS FTXG35EV1BS ATXG25EV1B ATXG35EV1B Outdoor Unit RXG25E3V1B RXG35E3V1B ARXG25E3V1B ARXG35E3V1B ...

Страница 3: ...r 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 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 Mode Changing Start up 31 3 4 Discharge Pipe Temperat...

Страница 4: ...it 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 Unspecified 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 Detec...

Страница 5: ...r 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 of Sound Blanket 179 2 5 Removal of Four Way Valve 181 2 6 Removal of Compressor 184 2 7 Removal of PCB 186 Part 8 Others 189 1 Others 190 1 1 Test Run from the Remote Controller 190 1 2 Jumper Sett...

Страница 6: ...wer 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 supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas is discharged during the repair work ...

Страница 7: ...ctrical 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 wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Be sure to co...

Страница 8: ...heat 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 terminal connection section may cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable may cause an electrical shock or fire...

Страница 9: ...event 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 of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If the combustible gas leaks and remains around the...

Страница 10: ...e 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 Caution Icon Type of Information Description Note Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution Caution A cau...

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: ...our 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 Control Auto Fan Speed Wiring Error Check Indoor Unit Quiet Operation Anticorrosion Treatment of Outdoor Heat Exchanger Night Quiet Mode Automatic Outdoor Unit Quiet Operation Manual Flexibility Multi ...

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

Страница 15: ...ft Horizontal 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 W 30 30 30 30 30 30 30 30 30 30 30 30 Power Factor 90 9 93 2 96 2 90 9 93 2 96 2 90 9 93 2 96 2 90 9 93 2 96 2 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm...

Страница 16: ...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 30 30 30 30 30 30 30 30 Power Factor 90 9 93 2 96 2 90 9 93 2 96 2 90 9 93 2 96 2 90 9 93 2 96 2 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 275 840 150 275 840...

Страница 17: ...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 W 30 30 30 30 30 30 30 30 30 30 30 30 Power Factor 90 9 93 2 96 2 90 9 93 2 96 2 90 9 93 2 96 2 90 9 93 2 96 2 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 275 840 150 2...

Страница 18: ...SiBE04 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 10 ...

Страница 19: ...GENT 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 limit switch 1 S47 Connector for control PCB 1 S36 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery...

Страница 20: ...ram 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 S49 S36 S32 LED4 RTH1 LED3 R4992 LED2 SW1 S47 S36 R4988 ...

Страница 21: ...r 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 motor 6 S80 Connector for four way valve coil 7 S90 Connector for thermistors outdoor air heat exchanger discharge pipe 8 HL3 HN3 Connector for filter PCB 1 FU3 Fuse 20A 2 V2 V3 Varistor 1 FU1 FU2 Fu...

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 S90 S50 S20 S80 V1 HL3 S10 ...

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 Mode Changing Start up 31 3 4 Discharge Pipe Temperature Control 34 3 5 Input Current Control 35 3 6 Freeze up Protection Control 36 3 7 Heating Peak cut Control 37 3 8 Fan Control 38 3 9 Liquid Compr...

Страница 25: ...xplains 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 power source for the present 2 The DC power source is reconverted into the three phase AC power source with variable frequency When the frequency increases the rotation speed of the compressor increases...

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 power Frequency Limits The following table shows the functions that define the minimum and maximum frequency Forced Cooling Operation For more information refer to Forced operation mode on page 44 60 120...

Страница 27: ...fan 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 conditioner Detail of the Action When the horizontal swing and vertical swing are both set to auto mode the airflow become 3 D airflow and the horizontal swing and vertical swing motions are alternated The ord...

Страница 28: ...ea 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 Opening the flap fully R3311 TDELTA Fully close OFF Start ON Front panel Flap Under running control Under running control Under operation mode control Under operation mode control The outdoor unit pro...

Страница 29: ...the 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 indoor fan speed will be regulated according to the indoor heat exchanger temperature and the difference between the room temperature and the required set point Automatic Airflow Control for Cooling T...

Страница 30: ...e 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 temperature and humidity at a comfortable level Room temperature at startup Set temperature X Thermostat OFF point Y Thermostat ON point Z 24ºC or more Room temperature at startup X 2 5ºC X 0 5ºC or Y ...

Страница 31: ...g 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 Room temperature Main unit setting temperature 2 5 deg Cooling Heating switching point Room temperature Main unit setting temperature 2 5 deg Thermostat ON OFF point is the same as the ON OFF point o...

Страница 32: ...perature 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 passed while the temperature difference is in the zone B Cooling Dry 10 minutes Heating 10 seconds Cooling Dry Heating B A OFF ON C Cooling 0 5 C Dry 0 5 C Room temperature setpoint Cooling 2 0 C Dry 2 5...

Страница 33: ...HT 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 slightly in the case of heating for economical operations This prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity C...

Страница 34: ...computer 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 2 C lower Auto according to the operation mode at that time 1 In case of FAN mode the fan speed reduces by 60 rpm If the sensor detects the outputs 10 times sec or more it judges humans exist 1sec ...

Страница 35: ...et 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 rotating speed and the compressor frequency Details of the Control When POWERFUL button is pushed in each operation mode the fan speed setting temperature will be converted to the following states in a...

Страница 36: ...he 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 or more the operation will be stopped See page 44 for the detail of Forced Operation Mode 1 11 4 Titanium Apatite Photocatalytic Air Purifying Filter This filter combines the Air Purifying Filter and...

Страница 37: ...Even 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 minutes to restart the operation because the 3 minute standby function is activated ...

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 is used for controlling target discharge temperature The system sets a target discharge temperature according to the outdoor and indoor heat exchanger temperature and controls the electronic expansion...

Страница 39: ...For 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 operation Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode Cooling Heating Defrosting Stop mode except for cooling heating modes by indoor comm...

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 protection input current discharge pipes Low Hz high pressure peak cutting freeze prevention defrost 3 Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency...

Страница 41: ...requency 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 width When the difference between input current and input current drooping value is less than 1 5 A the frequency increase width must be limited 4 Frequency management when other controls are function...

Страница 42: ...r 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 Fin temperature 85 C OFF condition Discharge pipe temperature 12 C Fin temperature 90 C Control B ON condition Discharge pipe temperature 20 C Fin temperature 85 C OFF condition Discharge pipe tempera...

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 four way valve must be carried out after the operation stopped Detail The OFF delay of four way valve Energize the coil for 160 sec after unit operation is stopped ...

Страница 44: ...itions 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 first time after the reset with the power is ON 5 When starting compressor for heating next to the suspension of defrosting 6 When starting compressor next to the fault of switching over cooling hea...

Страница 45: ...f 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 FCG 3 88 FCG 2 64 FCG 1 48 TCG 1 240 TCG 2 360 TCG 3 180 Zone Control contents Stop zone When the temperature reaches the stop zone stop the compressor and correct abnormality Drooping zone Start th...

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 zone the compressor is stopped Limitation of current drooping and stop value according to the outdoor air temperature 1 In case the operation mode is cooling The current droops when outdoor air temper...

Страница 47: ...reezing 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 heat exchanger temperature after 2 sec from operation start Control in Each Zone R4561 Return from stop Reference Reset zone Heat exchanger thermistor temperature Up zone Keep zone Drooping zone Sto...

Страница 48: ...oor 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 controlling start with the indoor heat exchanger temperature Control in Each Zone The heat exchange intermediate temperature of indoor unit controls the following ...

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 conditions that the system is in cooling operation and outdoor air temperature is below 10 C 3 10 Defrost Control Outline Defrosting is carried out by the cooling cycle reverse cycle The defrosting time...

Страница 50: ...l 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 86Hz 30Hz R8329 60sec Outdoor temp 0 C Outdoor temp 0 C ...

Страница 51: ...cted 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 when power is turned ON Open control when starting Control of target discharge pipe temperature Pressure equalizing control Open control when starting Control of target discharge pipe temperature Defros...

Страница 52: ...harge 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 exchanger temperature If any is disconnected open the electronic expansion valve according to the outdoor air temperature and the operating frequency and operate for 9 minutes and then stop After 3 minut...

Страница 53: ...ift 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 opening so that the actual discharge pipe temperature become close to that temperature Indirect SH control using the discharge pipe temperature Determine a correction value of the electronic expansion valv...

Страница 54: ...e 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 model it is regarded as insufficient gas The power consumption is weak comparing with that in the normal operation when gas is insufficient and gas insufficiency is detected by checking a power consumpt...

Страница 55: ...al 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 Starting adjustment If the forced operation switch is pressed as the above conditions are met 1 Command frequency 68Hz 2 Electronic expansion valve opening It depends on the capacity of the operating ind...

Страница 56: ...autions 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 Operation 60 2 8 INTELLIGENT EYE Operation 61 2 9 TIMER Operation 63 2 10 Care and Cleaning 65 2 11 Troubleshooting 68 ...

Страница 57: ...er 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 installation work is and however good the functions are the customer may blame either the room air conditioner or its installation work because of improper handling The installation work and handing over...

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 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 the de...

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 in the unit such animals can cause malfunc tions smoke or fire when making contact with electrical parts Do not operate the air conditioner with wet hands Do not wash the indoor unit with excessive wa...

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: ...is 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 green page 16 17 INTELLIGENT EYE sensor It detects the movements of people and auto matically switches between normal operation and energy saving operation page 16 18 Signal receiver It receives signals...

Страница 62: ...nce 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 button It selects the air flow rate setting 10 SWING button page 12 Flap Horizontal blade 11 SWING button page 12 Louvers Vertical blades 12 COMFORT AIRFLOW mode button page 13 13 ON TIMER button pag...

Страница 63: ...ype 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 fade or if reception deteriorates please replace with new alkali batteries Do not use manganese batteries The attached batteries are provided for the initial use of the system The usable period of th...

Страница 64: ...te 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 i e when the panel is open or being opened or closed do not touch the panel with your hands About remote controller Never expose the remote controller to direct sunlight Dust on the signal transmitt...

Страница 65: ...e 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 Recommended temperature setting For cooling 26 C 28 C For heating 20 C 24 C Mode Operating conditions If operation is continued out of this range COOL Outdoor temperature 2MXS40 10 to 46 C 2MXS52 10...

Страница 66: ...ration 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 Press ON OFF button again The operation lamp will go off and the panel will close To change the temperature setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The ...

Страница 67: ...ore 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 defrosting operation hot air does not flow out of indoor unit Note on COOL operation This air conditioner cools the room by blowing the hot air in the room outside so if the outside temperature is h...

Страница 68: ...ion 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 desired position press the SWING button once more The louvers will stop moving To 3 D Airflow 1 3 Press the SWING button and the SWING button the and display will light up and the flap and louvers w...

Страница 69: ...E 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 collected at the bottom of the room and hot air which tends to collect near the ceiling throughout the room preventing areas of cold and hot developing Comfort Airflow The air flow is set automatically ...

Страница 70: ...s 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 does not include QUIET operation POWERFUL Operation can only be set when the unit is running Pressing the operation stop button causes the settings to be canceled and the disappears from the LCD In COOL...

Страница 71: ...e 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 not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever button is pressed last If operatio...

Страница 72: ...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 1 2 When somebody in the room Normal operation The INTELLIGENT EYE lamp lights up When somebody in the room 20 min after start energy saving operation The INTELLIGENT EYE lamp goes off Somebody back in the room Back to normal operation The INTELLIGENT EYE lam...

Страница 73: ...ity 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 passersby INTELLIGENT EYE operation will not go on during powerful operation Night set mode page 18 will not go on during you use INTELLIGENT EYE operation Do not place large objects near the sensor Als...

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 TIMER lamp goes off NOTE When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote controller batteries are...

Страница 75: ...tton 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 Press CANCEL button The TIMER lamp goes off To combine ON TIMER and OFF TIMER A sample setting for combining the two timers is shown below ATTENTION In the following cases set the timer again After a ...

Страница 76: ...e 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 the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or attaching the front panel use a robust and stable stool and watch your steps carefully When remov...

Страница 77: ...ters 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 clean the air filters every two weeks Titanium Apatite Photocatalytic Air Purifying Filter gray The Titanium Apatite Photocatalytic Air Purifying Filter can be renewed by washing it with water once eve...

Страница 78: ...rder 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 fittings of the outdoor unit are not decayed or corroded Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit Check that the drain comes smoothly out of the...

Страница 79: ...mode 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 cold air flow during cooling operation The indoor unit gives out odour This happens when smells of the room furniture or cigarettes are absorbed into the unit and discharged with the air flow If this ha...

Страница 80: ...PERATION 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 breaker OFF Then turn it ON again and try operating the air conditioner with the remote controller If the lamp still flashes call the service shop where you bought the air conditioner An abnormal fun...

Страница 81: ...prevent 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 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 after several seasons of use result ...

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 92 4 15 Four Way Valve Abnormality 93 4 16 Discharge Pipe Temperature Control 95 4 17 High Pressure Control in Cooling 97 4 18 Compressor System Sensor Abnormality 99 4 19 Position Sensor Abnormalit...

Страница 83: ...ipment 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 Troubleshooting with LED Indication The outdoor unit has one green LED LED A on the PCB The flashing green LED indicates normal condition of microcomputer operation Operation lamp green INTELLIGEN...

Страница 84: ...or 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 only for heat pump model Check for wiring and piping errors in the indoor and outdoor units connection wires and pipes Conduct the wiring piping error check described on the product diagnosis nameplat...

Страница 85: ...ous 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 code display hold the timer cancel button down for 5 seconds The code display also cancels itself if the button is not pressed for 1 minute No Code No Code No Code 1 00 12 F6 23 A1 2 U4 13 C7 24 E1 ...

Страница 86: ...k 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 number of tens accords with the error code beep The both numbers of tens and units accord with the error code See 7 4 Enter the diagnosis mode again Press the MODE button The digit of the number of un...

Страница 87: ...oth 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 error code The digits indicated when you hear the beep sound are error code Error codes and description Refer to page 77 8 Exit from the diagnosis mode Press the MODE button R4277 R4278 ...

Страница 88: ...t 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 E8 Input over current detection 92 EA Four way valve abnormality 93 F3 Discharge pipe temperature control 95 F6 High pressure control in cooling 97 H0 Compressor system sensor abnormality 99 H6 Posi...

Страница 89: ...zero 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 connection check note Is it normal YES NO R7130 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Correct connections Replace PCBs Model Type...

Страница 90: ...according 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 heat exchanger thermistor is above 65 C Freeze up protection When the indoor unit heat exchanger temperature is below 0 C during cooling operation Supposed Causes Operation halt due to clogged air f...

Страница 91: ...or 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 indoor unit PCB Does it conform to the thermistor characteristic chart Check the intake air filter Check the dust accumulation on the indoor unit heat exchanger Is there any short circuit Is it very dirty...

Страница 92: ...nction 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 Operation halt due to short circuit inside the fan motor winding Operation halt due to breaking of wire inside the fan motor Operation halt due to breaking of the fan motor lead wires Operation halt due ...

Страница 93: ...nect 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 while remaining power supply Replace fan motor Replace fan motor Does fan rotate smoothly Does it rotate Is rotation number command pulse generated Is motor power voltage DC 200V generated Is motor con...

Страница 94: ...an 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 Refer to P 118 C4 Heat exchanger thermistor C9 Room temperature thermistor YES R7134 NO Check No 06 Check the thermistor resistance value YES NO Caution Be sure to turn off power switch before connect...

Страница 95: ...n 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 switch YES YES YES YES NO NO NO NO Replace the reduction motor Replace the assembly of the front panel mechanism Check the movement of the right and left separately by hand It is supposed such as defo...

Страница 96: ...Short 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 Check No 10 Check power supply waveform YES YES Replace indoor unit control PCB Locate the cause of the disturbance of the power supply waveform and correct it NO R8300 NO YES YES NO NO Caution Be su...

Страница 97: ...l 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 remote controller Troubleshooting Check the indoor unit remote controller connection wires Is it normal YES NO R8420 Caution Be sure to turn off power switch before connect or disconnect connector or ...

Страница 98: ...ses 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 connect or disconnect connector or parts damage may be occurred Check the indoor and outdoor unit model numbers R8308 YES NO NO YES Check the code numbers 2P01234 for example of the indoor and outdoor uni...

Страница 99: ...ng 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 to turn off power switch before connect or disconnect connector or parts damage may be occurred YES NO NO YES Power on again Check to see that the machine is grounded Replace the outdoor unit PCB Ca...

Страница 100: ...eshooting 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 connector or parts damage may be occurred YES Malfunctioning Discharge pipe thermistor NO Functioning Functioning Malfunctioning Refrigerant shortage Water mixed Stop valve defective Malfunctioning Function...

Страница 101: ...ressor 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 or parts damage may be occurred NO YES YES NO NO YES Check with the inverter checker Turn off the power and reconnect the harnesses Turn on the power again and get the system restarted Precaution be...

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 Refer to P 122 R7139 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES YES NO YES NO NO Get started Check No 15 Check the outdoor un...

Страница 103: ...P 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 disconnected and reconnected for part replacement for example and the system is interrupted by an input over current take the following procedure R8351 NO YES YES NO Get restarted and measure the inp...

Страница 104: ...cked 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 operation room temp indoor heat exchanger temp 5 C Heating indoor unit heat exchanger temp room temp 5 C Supposed Causes Connector in poor contact Thermistor defective Outdoor unit PCB defective Four way v...

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 connector or parts damage may be occurred R8326 Four way valve coil disconnected loose Harness out of connector Any thermistor disconnected Check No 06 Check the thermistors Check No 11 Check the refrig...

Страница 106: ...e 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 during the following 60 minute compressor running time total time Supposed Causes Refrigerant shortage Four way valve malfunctioning Discharge pipe thermistor defective heat exchanger or outdoor temperat...

Страница 107: ...hermistor Outdoor unit heat exchanger thermistor Outdoor temperature thermistor Refrigerant shortage Four way valve malfunctioning Water mixed Stop valve defective Functioning Functioning Functioning Malfunctioning Malfunctioning Check No 06 Check the thermistors Check No 11 Check the refrigerant line Check No 04 Check the electronic expansion valve Replace the defective thermistor Replace the val...

Страница 108: ...g 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 outdo...

Страница 109: ...nnector 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 exchanger Change the installation location Check No 06 Check the heat exchanger thermistor Check the installation space Check No 04 Check the electronic expansion valve Abnormal Normal Normal Normal Nor...

Страница 110: ...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 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred NO R8310 YES Turn off the power and turn it on again YES NO Replace the harness No problem Kee...

Страница 111: ...gh 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 about 10 minutes The system will be shut down if the error occurs 16 times Supposed Causes Compressor relay cable disconnected Compressor itself defective Outdoor unit PCB defective Stop valve close...

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 Replace the compressor Correct the power supply or replace the outdoor unit PCB Reconnect as specified Replace the outdoor unit PCB outdoor unit fan Inverter checker Part No 1225477 Normal DC311 32V ...

Страница 113: ...cision 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 this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes Outdoor unit PCB defective Troubleshooting Replace the outdoor unit PCB Cauti...

Страница 114: ...rature 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 condenser thermistor temperature Supposed Causes Connector in poor contact Thermistor defective Outdoor unit PCB defective Indoor unit PCB defective Condenser thermistor defective in the case of J3 error ou...

Страница 115: ...er 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 Indoor heat exchanger thermistor Replace the following thermistor Replace the outdoor unit PCB Replace the indoor unit PCB Connector or thermistor disconnected Error displayed again on remote controller ...

Страница 116: ...cking 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 below 70 C Supposed Causes Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fin thermistor defective Connector in poor contact Outdoor unit PCB defectiv...

Страница 117: ...ectricals 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 temperature Check No 07 Check the installation condition Radiation fin dirty Above 80 C Check No 09 Check the outdoor unit fan or related Error again or outdoor unit fan activated Replace the outdoo...

Страница 118: ...tion 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 error does not occur during the following 60 minute compressor running time total time Supposed Causes Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fi...

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 thermistor resistance value Check No 09 Check the outdoor unit fan or related Error displayed again Has PCB been replaced Replace the fin thermistor Check if the silicon grease applied properly on the r...

Страница 120: ...is 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 Continuous run for about 10 minutes normal Supposed Causes Over current due to defective power transistor Over current due to wrong internal wiring Over current due to abnormal supply voltage Over current du...

Страница 121: ...input 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 Turn off the power and disconnect the harnesses U V and W Turn off the power and reconnect the harnesses Turn on the power again and get restarted Turn off the power and turn it on again to get the syst...

Страница 122: ...ditions 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 of the temperature is smaller than it is regarded as insufficient gas If a gas shortage error takes place 4 times straight the system will be shut down The error counter will reset itself if this or...

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 replace cracked pipe if any Check the pipes for improper contact Correct as required Also replace cracked pipe if any Replace the electronic expansion valve Replace the room temperature or outdoor air the...

Страница 124: ...ion 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 occurs 255 times Clearing condition Continuous run for about 10 minutes normal Supposed Causes Supply voltage not as specified Over voltage detector or DC voltage detection circuit defective PAM con...

Страница 125: ...connect 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 voltage Rotate fan by hand Disturbance factors Noise Power supply distortion Repeat a couple of times Make sure the power has been off for at least 30 seconds Turn on the power again System restarted...

Страница 126: ...ved 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 Defective outdoor unit PCB Troubleshooting R7185 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred NO YES Turn off the power and turn it on agai...

Страница 127: ...onnector 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 generates latching sound in the above step 2 the outdoor unit PCB is faulty 5 If the conductivity is confirmed in the above step 3 mount a good coil which generated latching sound in the EV unit tha...

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 Replace the outdoor unit PCB Replace the four way valve coil Replace the four way valve Four way valve coil resistance at 3kΩ 0 5kΩ S80 voltage at DC 220 240 V with compressor on Fig 1 ...

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 20kΩ B 3950 Temperature C 20 211 0 kΩ 15 150 10 116 5 5 88 0 67 2 5 51 9 10 40 15 31 8 20 25 25 20 30 16 35 13 40 10 6 45 8 7 50 7 2 ...

Страница 130: ...or 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 installation location Change the position of the air discharge grille or the installation location Change the installation location or direction Check the outside air temperature temperature of air taken i...

Страница 131: ...nger 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 Discharge pressure check R7159 YES YES NO NO Outdoor unit fan system functioning Check the outdoor unit fan system Go to Check No 15 Outdoor unit fan running Fan motor lead wire connector disconnected Re...

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 1 Fig 2 Refrigerant system check Check for gas leaks See the section on insufficient gas detection R8314 YES NO Correct the problem Replace the refrigerant Is the discharge thermistor disconnected f...

Страница 133: ...connect 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 make sure the pulse 0 15 V appears twice at pins 1 and 4 If the fuse for fan motor protection is blown out the outdoor unit fan may also be in trouble Check the fan too If the voltage in Step 2 is not...

Страница 134: ...or 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 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 of Sound Blanket 179...

Страница 135: ...ocedure 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 the tabs on the both sides and lift it until it stops with a click 2 Keep the front panel open with the support plate Front panel top Slot in panel Room temperature sensor R5001 Support point Support p...

Страница 136: ...when 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 catalytic Air purifying Filter is fixed on the rear of the air filter 2 Bend the air filter to release the protrusions and remove the Titanium Apatite Photocatalytic Air Purifying filter Step Procedure Po...

Страница 137: ...he 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 them to the end 1 Open the front panel to the horizontal position Release the both sides pivots and remove the front panel 2 Remove the slot in panel 1 Pull the lower side of the panel 2 Lift the panel ...

Страница 138: ...e 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 right side or lower side 1 Bend the service cover inside and release the hooks Step Procedure Points Service cover R5013 ...

Страница 139: ...r 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 of electrical box Step Procedure Points Hooks Hooks R5014 R5016 ...

Страница 140: ...nit 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 Step Procedure Points ...

Страница 141: ...rews 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 heat exchanger As for the horizontal blades fully opened position is easy to reassemble and remove Step Procedure Points Hooks R5018 ...

Страница 142: ...ease 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 three hooks are caught properly Step Procedure Points ...

Страница 143: ...ints 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 lower rack plate first 4 Lift the shaft and pull it out to the rightward Be careful so as not to lose the drive gear Assy of front panel mechanism right Assy of front panel mechanism left R5023 Lower ...

Страница 144: ...BE04 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 R5028 ...

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 lose the rollers and the cogs When you demand small parts like cogs and rollers order a set of assembly Step Procedure Points Hook R5032 Hooks R5033 Running gear Lower rack plate R5034 ...

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 the 3 hooks while rotating the lamp cover and remove ON OFF button Hooks Lamp cover R5037 Film R5038 ...

Страница 147: ...sassembling 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 pivot first 2 Fit the blade to the right pivot 3 Fit the blade to the center pivot 1 Release the center pivot 2 Bend the horizontal blade slightly and remove it R3816 R3813 R3814 ...

Страница 148: ...Remove 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 has a keyhole Step Procedure Points axis R5042 ...

Страница 149: ...dure 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 Undo the 2 hooks and remove the assembly 2 Peel the harness fixing tape Hook R5045 ...

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 motor Step Procedure Points ...

Страница 152: ...p 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 has 4 holes 2 Lift up the lower part of the grille to release the hook on the upper backside 3 Rotate the upper part of the grille to release the hook on the lower back side Pull out the grille ...

Страница 153: ...ning 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 Release the 4 hooks and remove the thermal insulation 2 Release the 4 hooks and remove the thermal insulation ...

Страница 154: ...e 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 One piece has 5 blades Step Procedure Points R3834 R3835 ...

Страница 155: ...oor 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 Points ...

Страница 156: ...9 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 Procedure Points ...

Страница 157: ...t 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 the drip proof plate 2 Lift and remove the drip proof plate When assembling insert the left hook of the drip proof plate into the hem plate of the heat exchanger Drip proof plate Signal receiver Elec...

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: ...e 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 for the fan motor S1 9 Release the harness from the hook Step Procedure Points ...

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 reassembling hang the excessive lead wire of the heat exchanger thermistor on the hook Step Procedure Points ...

Страница 161: ...0 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 out Step Procedure Points ...

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: ...arning 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 the electrical box and open it 2 Release the right hook and remove the cover ...

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: ...rminals 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 was before 10 Disconnect the connector for the signal receiver PCB S46 Step Procedure Points ...

Страница 167: ...4 809 156 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 JA JC S49 S36 S32 ...

Страница 168: ...Removal 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 PCB Step Procedure Points ...

Страница 169: ...ed 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 so that the residual water in the drain will not make the floor wet In case that a drain hose is buried inside a wall remove it after the drain hose in the wall is pulled out Use two wrenches to disco...

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 remove it Step Procedure Points ...

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 exchanger with cloths Fins can cut fingers 4 Pull the heat exchanger to the front side and then lift and remove it Step Procedure Points ...

Страница 172: ...cedure 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 right side plate 2 Remove the motor cover 1 Loosen the 2 screws and remove the motor cover ...

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: ...ndoor 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 Procedure Points ...

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 reassembling make sure to fit the 5 hooks 1 Loosen the screw of the stop valve cover Pull down the stop valve cover and remove it DAIKIN INVERTER R7186 Handle R7188 R7189 ...

Страница 176: ...the 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 panel R7190 DAIKIN INVERTER R7191 Drip proof plate DAIKIN INVERTER R7192 R7193 ...

Страница 177: ...rocedure 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 INVERTER R7194 Front panel R7195 Hooks ...

Страница 178: ...s 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 reassembling 3 Cut the clamp Step Procedure Points R7196 Propeller fan D cut R7197 R7198 ...

Страница 179: ...ead 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 remove the fan motor DC fan motor Step Procedure Points S70 R7199 Fan motor lead wire R7200 R7201 R3249 Lead wire Propeller fan Fan motor R7202 ...

Страница 180: ...Outdoor 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 R7205 R7206 ...

Страница 181: ...Removal 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 air thermistor Guard net R7209 ...

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: ...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 clamp 3 Disconnect the connector for compressor motor S30 When reassembling coil the excessive lead wire and hang the loop on the hook R7214 R7215 R7216 S30 ...

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 four way valve coil S80 Step Procedure Points R7217 S40 R7218 S20 R7219 S80 ...

Страница 186: ...arge 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 R7220 Discharge pipe thermistor R7221 R7222 Heat exchanger thermistor ...

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

Страница 188: ...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 Lift and remove the reactor 2 Remove the partition plate 1 Loosen the 2 screws R7224 Reactor R7225 R7226 Partition plate ...

Страница 189: ...4 809 178 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 Points R7227 R7228 Hook ...

Страница 190: ...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 body as it is opened Since the piping ports on the sound blanket are torn easily remove the blanket carefully 3 Lift and remove the sound blanket top R7229 Sound blanket R7230 R7231 ...

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: ...s 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 as not to burn them Be careful so as not to burn the compressor terminals or the name plate Make a note R7233 R7234 Terminal cover V W U R7235 Red U Yellow V Blue W ...

Страница 193: ...purpose 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 may get deformed If the gas welding machine fails to remove the four way valve take the steps below 1 Disconnect the brazed pipe sections that are readily easy to separate and join together later 2 Wit...

Страница 194: ...ar 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 careful so as not to break the pipes by pressing it excessively by pliers when withdrawing it Step Procedure Points R7250 ...

Страница 195: ...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 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 Cautions for ...

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: ...e 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 adopted See page 11 for detail 1 Feature of the PCB 2 Loosen the screw on the terminal board 3 Release the 2 earth terminals R7255 R7256 R7257 The earth terminals ...

Страница 198: ...r 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 R7258 Screws R7259 ...

Страница 199: ...09 188 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 Glass fuse 3 15 A S70 ...

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: ...g 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 with the Operation Manual to ensure that all functions and parts such as louver movement are working properly The air conditioner requires a small amount of power in its standby mode If the system is...

Страница 202: ...late 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 indoor control PCB Function When connected factory set When cut JC Power failure recovery function Auto restart Unit does not resume operation after recovering from a power failure Timer ON OFF settings ...

Страница 203: ...sistor 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 completely wipe off the old silicon grease on a heat radiation fin To evenly apply the silicon grease to the whole Do not have any foreign object such as solder or paper waste between the power trans...

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 FIELD PIPING 9 5CuT 6 4CuT MUFFLER 9 5CuT DISCHARGE PIPE THERMISTOR REFRIGERANT FLOW 7 0CuT COOLING GAS STOP VALVE φ 4 0 ID 2 0CuT 4 8CuT PROPELLER FAN COMPRESSOR OUTDOOR UNIT MUFFLER WITH FILTER OUTD...

Страница 206: ...Z2C 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 S10 BLK BLK BLK BLK BLK WHT 1 BLK 1 S11 9 9 C5 C6 C118 CAPACITOR R1T 2 YLW Y1R REVERSING SOLENOIDE VALVE COIL MR30 V W WHT 20A 6 X1M TERMINAL STRIP WHT S70 DB1 V1 FU1 3 15A 1 PCB2 2 3 Y1E 1 S30 RED ...

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

Страница 208: ...CB 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 airflow mode 16 compressor 184 compressor lock 90 compressor motor 173 compressor overload 89 compressor protection function 34 compressor system sensor abnormality 99 connectors 8 control PCB indoor uni...

Страница 209: ...panel 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 grille 126 130 outlet grille 141 H H0 99 H6 100 H8 102 H9 103 HA 8 Hall IC 18 81 heat exchanger 158 160 heat exchanger thermistor 83 149 175 heating peak cut control 37 high pressure control 79 high pre...

Страница 210: ...peration 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 11 INTELLIGENT EYE PCB 9 signal receiver PCB 9 157 problem symptoms and measures 73 programme dry function 19 propeller fan 167 R rack plate 132 radiation fin temperature rise 107 radiation fin ther...

Страница 211: ...rmistor 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 air purifying filter 25 125 top panel 165 troubleshooting 68 77 troubleshooting with LED indication 72 turning speed pulse input on the outdoor unit PCB check 122 U U0 111 U2 113 U4 85 U5 86 U7 115 ...

Страница 212: ...eeze 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 27 H heating peak cut control 37 high pressure control in cooling 97 I indoor unit PCB abnormality 78 input current control 35 input over current detection 92 installation condition check 119 insuff...

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 abnormality outdoor unit 103 thermistor resistance check 118 thermostat control 21 trial operation from remote controller 190 turning speed pulse input on the outdoor unit PCB check 122 U unspecified voltage ...

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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