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SiBE07-618_C

Table of Contents

Inverter Pair

Duct Connected Type

C-Series

Cooling Only

Indoor Unit

FDKS50CVMB

FDKS60CVMB

Outdoor Unit

RKS50E2(3)V1B

RKS50F2V1B

RKS50G2V1B

RKS60E2(3)V1B

RKS60F2(3)V1B

Heat Pump

Indoor Unit

FDXS50CVMB

FDXS60CVMB

Outdoor Unit

RXS50E2(3)V1B

RXS50F2V1B

RXS50G2V1B

RXS60E2(3)V1B

RXS60F2(3)V1B

Содержание C-Series

Страница 1: ...SiBE07 618_C Applied Models Inverter Pair Cooling Only Inverter Pair Heat Pump Inverter Pair Duct Connected Type C Series ...

Страница 2: ...d Type C Series zCooling Only Indoor Unit FDKS50CVMB FDKS60CVMB Outdoor Unit RKS50E2 3 V1B RKS50F2V1B RKS50G2V1B RKS60E2 3 V1B RKS60F2 3 V1B zHeat Pump Indoor Unit FDXS50CVMB FDXS60CVMB Outdoor Unit RXS50E2 3 V1B RXS50F2V1B RXS50G2V1B RXS60E2 3 V1B RXS60F2 3 V1B ...

Страница 3: ...Operation 21 1 5 Automatic Operation 22 1 6 Thermostat Control 23 1 7 NIGHT SET Mode 24 1 8 HOME LEAVE Operation 25 1 9 Inverter POWERFUL Operation 26 1 10 Other Functions 27 2 Function of Thermistor 28 3 Control Specification 29 3 1 Mode Hierarchy 29 3 2 Frequency Control 30 3 3 Controls at Mode Changing Start up 32 3 4 Discharge Pipe Temperature Control 33 3 5 Input Current Control 34 3 6 Freeze...

Страница 4: ... OL Activation Compressor Overload 69 4 10 Compressor Lock 70 4 11 DC Fan Lock 71 4 12 Input Overcurrent Detection 72 4 13 Four Way Valve Abnormality 73 4 14 Discharge Pipe Temperature Control 75 4 15 High Pressure Control in Cooling 76 4 16 Compressor System Sensor Abnormality 77 4 17 Position Sensor Abnormality 78 4 18 CT or Related Abnormality 80 4 19 Thermistor or Related Abnormality Outdoor U...

Страница 5: ...n 2 Units are Installed in 1 Room 127 2 2 Facility Setting Switch cooling at low outdoor temperature 128 2 3 Jumper and Switch Settings 128 3 Application of Silicon Grease to a Power Transistor and a Diode Bridge 129 Part 9 Appendix 130 1 Piping Diagrams 131 1 1 Indoor Unit 131 1 2 Outdoor Unit 132 2 Wiring Diagrams 133 2 1 Indoor Unit 133 2 2 Outdoor Unit 134 ...

Страница 6: ...ower 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: ...electrical 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...

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: ...revent 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 th...

Страница 10: ...re 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 ca...

Страница 11: ...SiBE07 618_C List of Functions 1 Part 1 List of Functions 1 Functions 2 ...

Страница 12: ...rability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error Check Indoor Unit Quiet Operation Anti Corrosion Treatment of Outdoor Heat Exchanger NIGHT QUIET Mode Automatic OUTDOOR UNIT QUIET Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit INTELLIGENT EYE Operation Quick Warming Function Preheating O...

Страница 13: ...o Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error Check Indoor Unit Quiet Operation Anti Corrosion Treatment of Outdoor Heat Exchanger NIGHT QUIET Mode Automatic OUTDOOR UNIT QUIET Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit INTELLIGENT EYE Operation Quick Warming Function Preheating Operation Fle...

Страница 14: ...y Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error Check Indoor Unit Quiet Operation Anti Corrosion Treatment of Outdoor Heat Exchanger NIGHT QUIET Mode Automatic OUTDOOR UNIT QUIET Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit INTELLIGENT EYE Operation Flexible Voltage Correspondence...

Страница 15: ...SiBE07 618_C Specifications 5 Part 2 Specifications 1 Specifications 6 1 1 Cooling Only 6 1 2 Heat Pump 9 ...

Страница 16: ... Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 64 0 74 Power Consumption Rated W 140 160 Power Factor 95 1 94 0 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 900 620 200 1 100 620 Packaged Dimensions H W D mm 266 1 106 751 266 1 306 751 Weight kg 27 30 Gross Weight kg 34 37 Operation Sound H M L SL dBA 37 35 33 31 38 36 34 32 Sound...

Страница 17: ...ovable Washable Mildew Proof Running Current Rated A 0 64 0 74 Power Consumption Rated W 140 160 Power Factor 95 1 94 0 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 900 620 200 1 100 620 Packaged Dimensions H W D mm 266 1 106 751 266 1 306 751 Weight kg 27 30 Gross Weight kg 34 37 Operation Sound H M L SL dBA 37 35 33 31 38 36 34 32 Sound Power dBA 55 56 ...

Страница 18: ... Removable Washable Mildew Proof Running Current Rated A 0 64 0 74 Power Consumption Rated W 140 160 Power Factor 95 1 94 0 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 900 620 200 1 100 620 Packaged Dimensions H W D mm 266 1 106 751 266 1 306 751 Weight kg 27 30 Gross Weight kg 34 37 Operation Sound H M L SL dBA 37 35 33 31 38 36 34 32 Sound Power dBA 55...

Страница 19: ...ter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 64 0 64 0 74 0 74 Power Consumption Rated W 140 140 160 160 Power Factor 95 1 95 1 94 0 94 0 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 900 620 200 1 100 620 Packaged Dimensions H W D mm 266 1 106 751 266 1 306 751 Weight kg 27 30 Gross Weight kg 34 37 Operatio...

Страница 20: ...ovable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 64 0 64 0 74 0 74 Power Consumption Rated W 140 140 160 160 Power Factor 95 1 95 1 94 0 94 0 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 900 620 200 1 100 620 Packaged Dimensions H W D mm 266 1 106 751 266 1 306 751 Weight kg 27 30 Gross Weight kg 34 37 Operation Sound...

Страница 21: ... Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 64 0 64 0 74 0 74 Power Consumption Rated W 140 140 160 160 Power Factor 95 1 95 1 94 0 94 0 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 900 620 200 1 100 620 Packaged Dimensions H W D mm 266 1 106 751 266 1 306 751 Weight kg 27 30 Gross Weight kg 34 37 Operation S...

Страница 22: ...E07 618_C 12 Printed Circuit Board Connector Wiring Diagram Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 13 1 1 Indoor Unit 13 1 2 Outdoor Unit 15 ...

Страница 23: ...heat exchanger thermistor 6 H1 H2 H3 Connector for terminal board 7 GND Connector for terminal board earth 8 JA Address setting jumper Refer to page 127 for detail JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 128 for more detail 9 LED A LED for service monitor green 10 FU1 F1U Fuse 3 15A 250V 11 V1 V1TR Varistor 1 S1 Co...

Страница 24: ...tor Wiring Diagram SiBE07 618_C 14 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB 2 Display PCB S1 H2 S7 S26 S32 JC JB JA S21 2P131149 1 LED A FU1 H1 H3 V1 GND S1 LED3 LED2 LED1 SW1 RTH1 2P084375 1 ...

Страница 25: ...motor 6 S80 Connector for four way valve coil 7 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 8 AC1 AC2 Connector for terminal board power supply 9 HR1 HR2 Connector for reactor 10 E1 E2 Connector for earth 11 U V W Connector for compressor 12 FU1 Fuse 30 A 250 V 13 FU2 FU3 Fuse 3 15 A 250 V 14 V2 V3 V5 V6 V11 Varistor 1 S52 S102 Connector for main PCB 2 L...

Страница 26: ... Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Main PCB PCB 2 Service Monitor PCB V3 V11 AC1 E1 E2 FU2 3 15A HR1 HR2 FU3 3 15A 2P169046 1 2P169046 5 2P169046 7 S40 S20 S70 S90 S51 W V U S10 AC2 S101 V5 S80 V6 V2 FU1 30A S102 SW1 3P169059 1 LED A SW4 C SW4 B S52 ...

Страница 27: ...ter POWERFUL Operation 26 1 10 Other Functions 27 2 Function of Thermistor 28 3 Control Specification 29 3 1 Mode Hierarchy 29 3 2 Frequency Control 30 3 3 Controls at Mode Changing Start up 32 3 4 Discharge Pipe Temperature Control 33 3 5 Input Current Control 34 3 6 Freeze up Protection Control 35 3 7 Heating Peak cut Control 35 3 8 Outdoor Fan Control 36 3 9 Liquid Compression Protection Functi...

Страница 28: ...ation The target frequency is set by the following 2 parameters coming from the operating indoor unit The load condition of the operating indoor unit The difference between the room thermistor temperature and the target temperature Additional Control Parameters The target frequency is adapted by additional parameters in the following cases Frequency restrictions Initial settings Forced cooling ope...

Страница 29: ...ce the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following functions regulate the minimum and maximum frequency Forced Cooling Operation Refer to Forced operation mode on page 42 for detail 50 Hz 60 Hz Refrigerant circulation rate high high f low f freq variable Refrigerant circulation rate low high speed low s...

Страница 30: ...ed operation the step SL is not available The airflow rate is automatically controlled within this range when the FAN setting button is set to automatic Cooling The following drawing explains the principle of fan speed control for cooling Heating On heating mode the fan speed is regulated according to the indoor heat exchanger temperature and the difference between the room thermistor temperature ...

Страница 31: ...emperature at start up and the target temperature 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 thermistor temperature at start up Target temperature X Thermostat OFF point Y Thermostat ON point Z 24ºC or more Room thermistor temperature at start up X 2 5ºC X 0 5ºC or ...

Страница 32: ...orrection value 1 The set temperature Ts determines the target temperature Tt Ts 18 30 C 2 The target temperature Tt is calculated as Tt Ts C where C is the correction value C 0 C 3 Thermostat ON OFF point and mode switching point are as follows Tr means the room thermistor temperature Heating Cooling switching point Tr Tt 2 5 C Cooling Heating switching point Tr Tt 2 5 C Thermostat ON OFF point i...

Страница 33: ...ter 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 Refer to Temperature Control on page 18 for detail B A OFF ON C Cooling 1 0 C Dry 1 0 C Room thermistor temperature target tem...

Страница 34: ...e case of heating This prevents excessive cooling in summer and excessive heating in winter to ensure comfortable sleeping conditions and also conserves electricity Cooling Heating 0 5 C 0 5 C R12237 0 5 C 0 5 C temperature shift Target temperature remains the same NIGHT SET Mode ON TIMER operation Operation stops at the set hours 1 hour 30 minutes temperature shift When the outdoor temperature is...

Страница 35: ...d on the display of the remote controller The indoor unit is operated according to the set temperature and airflow rate for HOME LEAVE which were pre set in the memory of the remote controller The LED red of indoor unit representing HOME LEAVE lights up It goes out when the operation is stopped 3 End of Function The function ends when the HOME LEAVE button is pressed again during HOME LEAVE operat...

Страница 36: ...minutes Ex POWERFUL operation in cooling mode Operation mode Fan speed Target temperature COOL H tap 50 rpm 18 C DRY Dry rotating speed 50 rpm Lowered by 2 5 C HEAT H tap 50 rpm 30 C FAN H tap 50 rpm AUTO Same as cooling heating in POWERFUL operation The target temperature is kept unchanged R7096 Target temp Fan 50 rpm 18 C H tap Set tap 20 minutes Ending condition or in 1 to 3 1 After the lapse o...

Страница 37: ... button once to start operation Press once again to stop it This button is useful when the remote controller is missing or the battery has run out The operation mode refers to the following table Forced operation mode Forced operation mode can be started by pressing the ON OFF button for 5 to 9 seconds while the unit is not operating Refer to Forced operation mode on page 42 for detail Note When t...

Страница 38: ...ge pipe temperature used in place of the inner temperature of the compressor rises abnormally the operating frequency becomes lower or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the discharge pipe thermistor C Indoor Heat Exchanger Thermistor 1 The indoor heat exchanger thermistor is used for controlling target discharge pipe temperature The system s...

Страница 39: ...g include defrosting Note Unless specified otherwise an indoor dry operation command is regarded as cooling operation Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode Cooling Stop mode except for cooling modes by indoor command Preheating operation During C capacitor is discharging Stop R2830 Air conditioner control mode Forced operati...

Страница 40: ...functions Compressor protection input current discharge pipe temperature freeze up protection 3 Determine lower limit frequency The maximum value is set as an lower limit frequency among the frequency lower limits of the following function Pressure difference upkeep 4 Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency For Heat Pump Model 1 Deter...

Страница 41: ...ume airflow rate and other factors PI Control Determine Frequency Up Down by D Signal 1 P control The D value is calculated in each sampling time 20 seconds and the frequency is adjusted according to its difference from the frequency previously calculated 2 I control If the operating frequency does not change for more than a certain fixed time the frequency is adjusted according to the D value Whe...

Страница 42: ... to eliminate the switching sound when the heating is stopped as the four way valve coil switches from ON to OFF the OFF delay switch of the four way valve is carried out after the operation stopped Detail OFF delay switch of four way valve The four way valve coil is energized for 150 seconds after the operation is stopped 3 3 3 Four Way Valve Operation Compensation Outline At the beginning of the...

Страница 43: ...ischarge pipe temperature rises above a certain level the upper limit of frequency is set to keep this temperature from going up further Detail FCG3 Hz Frequency Sec Time FCG2 FCG1 TCG1 TCG2 TCG3 R10540 FCG 1 FCG 2 FCG 3 TCG 1 TCG 2 TCG 3 55 70 85 120 200 470 Hz seconds Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Drooping zone The timer starts and the fre...

Страница 44: ...s zone the compressor is stopped Drooping zone The upper limit of the compressor frequency is defined as operation frequency 2 Hz After this the output frequency is pulled down by 2 Hz every second until it reaches the keep zone Keep zone The present maximum frequency goes on Reset zone Limit of the frequency is canceled Limitation of current drooping and stop value according to the outdoor temper...

Страница 45: ...eat exchanger temperature determines the frequency upper limit to prevent abnormal high pressure Detail R4561 Return from stop Reset zone Up zone Keep zone Drooping zone Stop zone 0 C 3 C 5 C 7 C 13 C Indoor heat exchanger thermistor temperature Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Drooping zone The timer starts and the frequency is drooping Keep z...

Страница 46: ...on speed of the outdoor fan is reduced by the command of the indoor outdoor quiet operation 7 Fan control for POWERFUL operation The rotation speed of the outdoor fan is increased while the POWERFUL operation 8 Fan speed control for pressure difference upkeep The rotation speed of the outdoor fan is controlled for keeping the pressure difference while cooling with low outdoor temperature When the ...

Страница 47: ...re and the outdoor heat exchanger temperature The system is in heating operation The compressor operates for 6 minutes 44 minutes of accumulated time pass since the start of the operation or ending of the previous defrosting Conditions for Canceling Defrost The judgment is made with outdoor heat exchanger temperature 4 C 12 C 50 class 60 class seconds 30 50 Frequency Compressor Four way valve Fan ...

Страница 48: ...alve control when the discharge pipe thermistor is disconnected 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 Control when frequency changed Control for abnormally high discharge pipe temperature Operation pattern function not function When power is turned ON Coolin...

Страница 49: ...minimum opening of the electronic expansion valve are limited Detail The electronic expansion valve is fully closed when cooling is stopped and is opened at fixed degree during defrosting 3 11 4 Starting Operation Control The electronic expansion valve opening is controlled when the operation starts and prevents the superheating or liquid compression 3 11 5 High Discharge Pipe Temperature When the...

Страница 50: ...6 C indoor heat exchanger temperature Adjustment when the thermistor is disconnected When the disconnection is ascertained the compressor continues operation for 9 minutes and then stops When the compressor stops repeatedly the system is shut down 3 11 7 Control when frequency is changed When the target discharge pipe temperature control is active if the target frequency is changed for a specified...

Страница 51: ... If the inverter current exceeds 20 A the system shuts down the compressor 3 12 3 Refrigerant Shortage Control Outline I Detecting by power consumption If the power consumption is below the specified value and the frequency is higher than the specified frequency it is regarded as refrigerant shortage The power consumption is small comparing with that in the normal operation when refrigerant is ins...

Страница 52: ...tdoor unit is not operating The forced operation is allowed when the above both conditions are met Start Press the forced operation ON OFF button SW1 on the indoor unit for 5 seconds Command frequency 66 Hz End 1 Press the forced operation ON OFF button SW1 on the indoor unit again 2 Press the ON OFF button on the remote controller 3 The operation ends automatically after 15 minutes Others The pro...

Страница 53: ...Operation Manual 1 System Configuration 44 2 Operation Manual 45 2 1 Remote Controller 45 2 2 AUTO DRY COOL HEAT FAN Operation 46 2 3 POWERFUL Operation 48 2 4 OUTDOOR UNIT QUIET Operation 49 2 5 HOME LEAVE Operation 50 2 6 TIMER Operation 52 ...

Страница 54: ...ver 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 ove...

Страница 55: ...ration 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 13 9 FAN setting button It selects the air flow rate setting 10 ON TIMER button page 17 11 OFF TIMER button page 16 12 TIMER Setting button It changes the time setting 13 TIMER CANCEL button It cancels the timer setting 14 CLOCK but...

Страница 56: ... setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not variable Set to the temperature you like 2 3 1 4 5 FDKS FDXS The air conditioner operates with the operation mode of your choice From the next time on the air conditioner will operate with the same operation mode Press MODE selector button and select a operation mode Each pressin...

Страница 57: ...res If the heating effect is insufficient it is recommended to use another heating appliance in combination with the air conditioner The heat pump system heats the room by circulating hot air around all parts of the room After the start of heating operation it takes some time before the room gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that...

Страница 58: ...L operation quickly maximizes the cooling heating effect in any operation mode You can get the maximum capacity To start POWERFUL operation POWERFUL operation ends in 20 minutes Then the system automatically operates again with the settings which were used before POWERFUL operation When using POWERFUL operation there are some functions which are not available is displayed on the LCD To cancel POWE...

Страница 59: ...UTDOOR UNIT QUIET operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit This function is convenient during night To start OUTDOOR UNIT QUIET operation is displayed on the LCD To cancel OUTDOOR UNIT QUIET operation disappears from the LCD POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time If operation is sto...

Страница 60: ... step and Heating 25 C 10 30 C 5 step and HOME LEAVE operation is a function which allows you to record your preferred temperature and air flow rate settings To start HOME LEAVE operation is displayed on the LCD To cancel HOME LEAVE operation disappears from the LCD When using HOME LEAVE operation for the first time please set the temperature and air flow rate for HOME LEAVE operation Record your ...

Страница 61: ...LEAVE Opera tion before leaving the living room when going to bed When you return you will be welcomed by a comfortably air conditioned room The unit will maintain the temperature in the room at a comfortable level while you sleep Push the HOME LEAVE Operation button again and the air conditioner will adjust capacity to the set temperature for normal operation When you enter the living room in the...

Страница 62: ...OFF TIMER and ON TIMER in combination Press TIMER Setting button until the time setting reaches the point you like Every pressing of either button increases or decreases the time setting by 10 min utes Holding down either button changes the setting rapidly Press OFF TIMER button again Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote controller bat...

Страница 63: ...timer again After a breaker has turned OFF After a power failure After replacing batteries in the remote controller 2 1 3 4 Display Example OFF TIMER at 0 00 a m ON TIMER at 7 00 a m Combined Check that the clock is correct If not set the clock to the present time Press TIMER Setting button until the time setting reaches the point you like Every pressing of either button increases or decreases the...

Страница 64: ... and Outdoor Unit 67 4 8 Outdoor Unit PCB Abnormality 68 4 9 OL Activation Compressor Overload 69 4 10 Compressor Lock 70 4 11 DC Fan Lock 71 4 12 Input Overcurrent Detection 72 4 13 Four Way Valve Abnormality 73 4 14 Discharge Pipe Temperature Control 75 4 15 High Pressure Control in Cooling 76 4 16 Compressor System Sensor Abnormality 77 4 17 Position Sensor Abnormality 78 4 18 CT or Related Abn...

Страница 65: ...of the indoor unit or the outdoor unit is activated or when the thermistor malfunctions 2 When a signal transmission error occurs between the indoor unit and the outdoor units In either case conduct the diagnostic procedure described in the following pages Outdoor Unit The outdoor unit has one green LED LED A on the PCB When the LED A blinks the microcomputer works in order R4134 Operation lamp gr...

Страница 66: ...Heating operation cannot be used when the outdoor temperature is 18 C or higher and cooling operation cannot be used when the outdoor temperature is below 10 C Diagnose with remote controller indication 60 The unit operates but does not cool or does not heat Check for wiring and piping errors in the connection between the indoor and outdoor units Conduct the wiring piping error check described on ...

Страница 67: ... Note 1 A short beep pi and two consecutive beeps pi pi indicate non corresponding codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode No Code No Code No Code 1 00 12 C7 23 H0 2 U4 13 H8 24 E1 3 F3 14 J3 25 P4 4 E6 15 A3 26 L3 5 L5 16 A1 27 L4 6 A6 17 C4 28 H6 7 E5 18 C5 ...

Страница 68: ...and change the figure until you hear the sound of beep or pi pi 3 Diagnose by the sound pi The figure of the ten s place does not accord with the error code pi pi The figure of the ten s place accords with the error code but the one s not beep The both figures of the ten s and one s place accord with the error code See 7 4 Press the MODE button The figure of the one s place blinks R4272 R4273 R427...

Страница 69: ... both figures of the ten s and one s place accord with the error code 7 Determine the error code The figures indicated when you hear the beep sound are error code Error codes and description Refer to page 60 8 Press the MODE button to exit from the diagnosis mode The display means the trial operation mode Refer to page 126 for trial operation 9 Press the ON OFF button twice to return to the normal...

Страница 70: ...Room temperature thermistor or related abnormality 65 Outdoor Unit E1 Outdoor unit PCB abnormality 68 E5 OL activation compressor overload 69 E6 Compressor lock 70 E7 DC fan lock 71 E8 Input overcurrent detection 72 EA Four way valve abnormality 73 F3 Discharge pipe temperature control 75 F6 High pressure control in cooling 76 H0 Compressor system sensor abnormality 77 H6 Position sensor abnormali...

Страница 71: ...on of connector Troubleshooting Note Check the following connector Check the combination of the indoor and outdoor unit OK Check the connection of connectors See Note Correct the connection OK Error repeats YES NO NO YES NO YES R11704 Caution To secure the connection once disconnect the connector and then reconnect it Match the compatible models Replace the indoor unit PCB 1 Replace the indoor uni...

Страница 72: ...ring heating operation the temperature detected by the indoor heat exchanger thermistor is used for the heating peak cut control operation halt outdoor fan stop etc Malfunction Decision Conditions Freeze up protection control During cooling operation the indoor heat exchanger temperature is below 0 C Heating peak cut control During heating operation the indoor heat exchanger temperature is above 6...

Страница 73: ...ean the air filter Clean the indoor heat exchanger Replace the indoor unit PCB Replace the thermistor Does it conform to the thermistor characteristic chart Check the air filter Check the dust accumulation on the indoor heat exchanger Is there any short circuit Is it very dirty Is it very dirty Check the air passage Be sure to turn off the power switch before connecting or disconnecting connectors...

Страница 74: ...o P 100 NO NO NO Check No 16 Check Hall IC NO NO NO YES YES YES YES YES YES R11411 Caution Replace the fan motor or the indoor unit PCB Replace the fan motor Replace the indoor unit PCB Replace the capacitor Replace the indoor unit PCB Replace the fan motor Replace the fan motor Replace the indoor unit PCB Does the fan rotate Is there an output Is it the rated voltage Does the fan rotate smoothly ...

Страница 75: ...compressor operation Supposed Causes Disconnection of connector Defective thermistor Defective indoor unit PCB Troubleshooting Check No 06 Refer to P 96 C4 Indoor heat exchanger thermistor C9 Room temperature thermistor YES R7134 NO Check No 06 Check the thermistor resistance value YES NO Caution Correct the connection Replace the thermistor Replace the indoor unit PCB Is it normal Is it normal Ch...

Страница 76: ...shooting Check No 10 Refer to P 98 Check No 10 Check the power supply waveform Check the voltage of the connection wires on the indoor terminal board between No 1 and No 3 and between No 2 and No 3 YES YES Replace the indoor unit PCB Locate the cause of the disturbance of the power supply waveform and correct it NO R12028 NO YES YES NO NO Caution Correct the indoor unit outdoor unit connection wir...

Страница 77: ...wiring of connection wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R11707 Caution NO YES YES YES NO NO Check the code numbers 2P01234 for example of the indoor and outdoor unit PCB with the Parts List Match the compatible models Change for the correct PCB Replace the indoor unit PCB or the outdoor unit PCB OK Matched co...

Страница 78: ...nning order Supposed Causes Defective outdoor unit PCB Noise Momentary fall of voltage Momentary power failure Troubleshooting R7183 Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged YES NO NO YES Turn on the power again Check to see if the unit is grounded Replace the outdoor unit PCB Ground the system The cause can be external fact...

Страница 79: ...fective stop valve Troubleshooting Check No 04 Refer to P 94 Check No 05 Refer to P 95 Check No 06 Refer to P 96 Check No 11 Refer to P 98 R11971 Caution YES NG Discharge pipe thermistor NO OK OK NG Refrigerant shortage Water mixed Stop valve NG OK NG OK Insert the thermistor in position Replace the discharge pipe thermistor Replace the electronic expansion valve or the coil Refer to the refrigera...

Страница 80: ...ssor harness Troubleshooting Turn off the power Disconnect the harnesses U V and W R8065 Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 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 restart the system Precaution before turning on the power again Make...

Страница 81: ...ses Disconnection of the fan motor Foreign matters stuck in the fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 15 Refer to P 100 R11708 Caution YES YES NO YES NO NO YES NO Turn on the power Rotate the fan Check No 15 Check the rotation pulse input on the outdoor unit PCB Turn off the power and reconnect the connector Remove them Replace the outdoor fan motor Replace th...

Страница 82: ...connecting or disconnecting connectors or parts may be damaged An input overcurrent 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 overcurrent take the following procedure R11709 NO YES YES NO Start operation and measure the input current Check No 08 Check the discharge pressure Ch...

Страница 83: ...alfunction Decision Conditions A following condition continues over 1 minute after operating for 10 minutes Cooling Dry room thermistor temp indoor heat exchanger temp 5 C Heating indoor heat exchanger temp room thermistor temp 5 C If the error repeats 5 times the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Disconnection of four w...

Страница 84: ...e check procedure Replace the four way valve defective or dust clogged Reconnect in position Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged R11710 Four way valve coil disconnected loose Harness out of connector Any thermistor disconnected Check No 06 Check the thermistors Check No 11 Check the refrigerant line Check No 05 Check th...

Страница 85: ...temperature thermistor Defective electronic expansion valve or coil Refrigerant shortage Defective four way valve Water mixed in refrigerant Defective stop valve Defective outdoor unit PCB Troubleshooting Check No 04 Refer to P 94 Check No 06 Refer to P 96 Check No 11 Refer to P 98 C C 110 95 R7141 Caution NG Discharge pipe thermistor Outdoor heat exchanger thermistor Outdoor temperature thermisto...

Страница 86: ...r thermistor Defective outdoor unit PCB Troubleshooting Check No 04 Refer to P 94 Check No 06 Refer to P 96 Check No 07 Refer to P 97 Check No 08 Refer to P 97 Check No 09 Refer to P 98 R11897 Caution Replace the fan motor Reconnect the connector or fan motor lead wires Replace the stop valve Replace the outdoor heat exchanger thermistor Replace the outdoor unit PCB Replace the electronic expansio...

Страница 87: ...perly R7174 NO YES Connect it properly NO YES Replace the reactor NO YES Replace the compressor or the compressor relay harness Restart the operation again and if the error occurs again replace the outdoor unit PCB NO YES Disconnect the reactor from the outdoor unit PCB and measure the resistance value between reactor terminals with tester Disconnect the compressor relay harness from the outdoor u...

Страница 88: ...or running condition through the position detection circuit Malfunction Decision Conditions If the error repeats 8 times the system is shut down Reset condition Continuous run for about 5 minutes without any other error Supposed Causes Disconnection of the compressor relay cable Defective compressor Defective outdoor unit PCB Start up failure caused by the closed stop valve Input voltage out of sp...

Страница 89: ...the power supply Voltage as rated R11471 NO NO YES NO YES YES Check with the inverter checker Turn off the power Disconnect the harnesses U V and W Turn on the power Check the electrolytic capacitor voltage Electrical components 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 them ...

Страница 90: ...equency and CT detected input current Malfunction Decision Conditions The compressor running frequency is more than Hz and the CT input current is below A If the error repeats 4 times the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective power module Breakage of wiring or disconnection Defective reactor Defective outdoor unit ...

Страница 91: ...and restart operation Compressor running 320 50 VDC Any LED OFF Running current as shown at right with relay cable 1 or 2 Voltage within the allowable range Supply voltage 15 Replace the outdoor unit PCB Replace the outdoor unit PCB Replace the outdoor unit PCB Check the supply voltage Replace the compressor Capacitor charged when the indoor unit or outdoor unit main relay turns on Rising with inc...

Страница 92: ...4 V with the power on J3 error is judged if the discharge pipe temperature is lower than the outdoor heat exchanger temperature Supposed Causes Disconnection of the connector for the thermistor Defective thermistor Defective heat exchanger thermistor in the case of J3 error outdoor heat exchanger thermistor in cooling operation or indoor heat exchanger thermistor in heating operation Defective out...

Страница 93: ...following thermistors Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Cooling Outdoor heat exchanger temperature Heating Indoor heat exchanger temperature Replace the indoor heat exchanger thermistor Replace the outdoor unit PCB Replace the indoor unit PCB Error displayed again on remote controller Indoor heat exchanger thermistor functioning Check No 06 ...

Страница 94: ...lfunction Decision Conditions With the compressor off the radiation fin temperature is above C The error is cleared when the radiation fin temperature drops below C To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above C and stops when it drops below C Supposed Causes Defective outdoor fan motor Short circuit Defective radiation fin thermistor Disc...

Страница 95: ... fin temperature rises above C and stops when it drops below C R11409 YES NO Slightly dirty NG Too dirty OK NO YES 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 C Check No 09 Check the outdoor fan or related Error again or outdoor fan activated Replace the outdoor unit PCB Replace the outdoor unit ...

Страница 96: ...tion fin temperature with the compressor on is above C The error is cleared when the radiation fin temperature drops below C If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective outdoor fan motor Short circuit Defective radiation fin thermistor Disconnection of connector Defective outdoor unit PCB Silicon...

Страница 97: ...o start the system Check the radiation fin temperature Check No 07 Check the installation condition NO YES YES Radiation fin dirty Above C Check No 09 Check the outdoor fan or related Error displayed again Has PCB been replaced Check if the silicon grease applied properly on the radiation fin If not apply it See Note Check the power transistor and the radiation fin for looseness If they are found ...

Страница 98: ...curs while the compressor is running A speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer If the error repeats 16 times the system is shut down Reset condition Continuous run for about 5 minutes without any other error Supposed Causes Poor installation condition Closed stop valve Defective power ...

Страница 99: ... 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 start operation Turn off the power and turn it on again to start the system See if the same error occurs Check the supply voltage Keep on using as it is Check the connectors and other components ...

Страница 100: ...hortage detection I The following conditions continue for 7 minutes DC current Output frequency Output frequency Refrigerant shortage detection II The following conditions continue for 80 seconds Target opening of the electronic expansion valve Discharge pipe temperature target discharge pipe temperature If the error repeats 4 times the system is shut down Reset condition Continuous run for about ...

Страница 101: ...Repair the pipe flare or replace the union Check the power transistor harness for looseness Correct it as required Also replace the cracked pipe Check the pipes for improper contact Correct them as required Also replace the cracked pipe Replace the electronic expansion valve Replace the defective one s Completed Error again Oil oozing at internal piping Stop valve closed Compressor vibrating too m...

Страница 102: ...essor stops if the error occurs and restarts automatically after 3 minute standby Supposed Causes Supply voltage is not as specified Defective DC voltage detection circuit Defective over voltage detection circuit Defective PAM control part Layer short inside the fan motor winding Troubleshooting Correct the power supply Replace the PM1 Replace the outdoor unit PCB Check for such factors for a long...

Страница 103: ...e data sent from the PM1 can not be received for 9 seconds The error counter is reset when the data from the PM1 can be successfully received Supposed Causes Defective outdoor unit PCB Troubleshooting R7185 Caution NO YES Turn off the power and turn it on again Error again Replace the outdoor unit PCB Observe the operating condition in long term The cause can be an external factor other than the m...

Страница 104: ...e latching sound 3 If the EV does not generate latching sound in the above step 2 disconnect the connector and check the continuity using a tester 4 Check the continuity between the pins 1 6 and 3 6 and between the pins 2 5 and 4 5 If there is no continuity between the pins the EV coil is faulty 5 If the continuity is confirmed in the above step 3 the outdoor unit PCB is faulty Note Please note th...

Страница 105: ...he power and turn it on again Disconnect the four way valve coil from the connector and check the continuity Start heating operation 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 1000 2000 Ω S80 voltage at 220 240 VAC with compressor on Fig 1 ...

Страница 106: ...emperature and resistance is shown in the table and the graph below For the models in which the thermistor is directly mounted on the PCB disconnect the connector for the PCB and measure Thermistor R25 C 20 kΩ B 3950 Temperature C 20 211 0 kΩ 15 150 0 10 116 5 5 88 0 0 67 2 5 51 9 10 40 0 15 31 8 20 25 0 25 20 0 30 16 0 35 13 0 40 10 6 45 8 7 50 7 2 kΩ 150 100 50 15 0 15 30 45 C R11905 Tester Resi...

Страница 107: ...location or direction Check the allowable dimensions of the air suction and discharge area Is the airflow blocked by obstacles or winds blowing in the opposite direction R12221 NG YES YES YES Is the discharged air short circuited NO NO NO Is the outdoor heat exchanger very dirty R11718 Not dirty YES YES Dirty NO NO NO YES Is the air filter or indoor outdoor heat exchanger dirty Is the connection p...

Страница 108: ...orm disturbance near the zero cross sections circled in Fig 2 5 1 8 Inverter Units Refrigerant System Check Check No 11 R7159 YES YES NO NO Outdoor fan system is functioning Check the outdoor fan system Go to Check No 15 Outdoor fan running Fan motor lead wire connector disconnected Reconnect the connector Fig 1 Fig 2 Refrigerant system check Check for refrigerant leakage See the service diagnosis...

Страница 109: ...e outdoor unit PCB To disengage the connector press the protrusion on the connector Follow the procedure below to measure resistance between the terminals of the DB1 and the terminals of the compressor with a multi tester Evaluate the measurement results for a judgment OL lead wire Thermistor lead wire Fan motor lead wire Compressor lead wire Reactor lead wire Four way valve lead wire Electronic e...

Страница 110: ...eck the outdoor fan motor for proper function If NG in step 2 Defective PCB Replace the outdoor unit PCB If NG in step 4 Defective Hall IC Replace the outdoor fan motor If OK in both steps 2 and 4 Replace the outdoor unit PCB 5 1 12 Hall IC Check Check No 16 1 Check the connector connection 2 With the power on operation off and the connector connected check the following Output voltage of about 5 ...

Страница 111: ...1 Removal of Outer Panels 102 1 2 Removal of Outdoor Fan Fan Motor 106 1 3 Removal of Electrical Box 110 1 4 Removal of PCB 115 1 5 Removal of Sound Blanket Thermistors 118 1 6 Removal of Four Way Valve 120 1 7 Removal of Electronic Expansion Valve 121 1 8 Removal of Compressor 122 ...

Страница 112: ...g off all power supplies before disassembling work Step Procedure Points 1 Remove the panels Take care not to cut your finger by the fins of the outdoor heat exchanger 1 Remove the 4 screws and lift the top panel 2 Remove the 4 screws and remove the discharge grille Slide the discharge grille upwards and remove it Top panel R12283 R12315 Discharge grille R5245 ...

Страница 113: ...ischarge grille has 4 hooks 3 Remove the 6 screws of the front panel 4 Push the front panel and lift the shield plate to unfasten the hooks Step Procedure Points Front panel R12284 Shield plate R5248 1 Push the front panel 2 Lift the shield plate upwards ...

Страница 114: ...ft side hooks and then the right side hook Remove the front panel Lift the front panel while pushing the left side panel inwards Lift the front panel and unfasten the right side hook When reassembling fit the right side of the front panel first Step Procedure Points ...

Страница 115: ...ocedure 105 2 Remove the stop valve cover 1 Remove the screw of the stop valve cover 2 Pull down the stop valve cover to unfasten the hooks and remove it The stop valve cover has 6 hooks Step Procedure Points Stop valve cover R5252 R5254 ...

Страница 116: ...edure Points 1 Remove the electrical box cover Preparation Remove the top panel and the front panel according to the Removal of Outer Panels This procedure is not necessary to remove the outdoor fan only 1 Remove the screw of the shield plate 2 Unfasten the 2 hooks and remove the shield plate 3 Unfasten the 4 hooks of the electrical box cover and remove it R5255 Shield plate Hook R12029 Electrical...

Страница 117: ...door Unit Removal Procedure 107 2 Remove the fan motor 1 Disconnect the connector for the fan motor S70 2 Release the fan motor lead wire from the 7 hooks Step Procedure Points R5258 S70 R5259 Fan motor lead wire R5260 ...

Страница 118: ...an with D cut section of the motor shaft 4 Remove the lower 2 screws from the fan motor first Be sure to remove the lower screws first If the upper screws are removed first the fan motor the center of gravity of which is toward the front may tilt down or fall getting you injured 5 Then remove the upper 2 screws Step Procedure Points R5262 Outdoor fan 10 mm R12236 R5263 R5264 Fan motor ...

Страница 119: ... Release the fan motor lead wire from the 2 hooks and pull the fan motor out When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan Step Procedure Points R5265 Fan motor lead wire ...

Страница 120: ...sassembling work Step Procedure Points 1 Remove the 2 screws of the shield plate Preparation Remove the top panel and the front panel according to the Removal of Outer Panels 2 Slide the shield plate upward to unfasten the 1 hook on the bottom left and then remove the shield plate 3 Disconnect the 2 power supply cables and the 1 earth wire R5266 Shield plate R5267 R5268 Earth wire ...

Страница 121: ...Outdoor Unit Removal Procedure 111 4 Disconnect the 2 earth wires 5 Remove the 3 screws of the right side panel 6 Remove the screw of the electrical box Step Procedure Points Earth wires R5269 R5270 Right side panel ...

Страница 122: ... the 2 hooks of the lower part and the 1 hook of the upper back 8 Disconnect the connectors of the front side S20 electronic expansion valve coil S40 overload protector S80 four way valve coil S90 thermistors 9 Disconnect the relay connector for the compressor Step Procedure Points R5272 Hook R5273 Hooks R5275 S40 S20 S90 S80 ...

Страница 123: ... Release the clamp of the compressor relay harness with pliers 11 Detach the clamp and release the thermistor lead wires from the hook 12 Remove the screw Step Procedure Points R5277 Compressor relay harness R5278 Thermistor lead wire Hook Clamp R12316 ...

Страница 124: ...oor Unit SiBE07 618_C 114 Removal Procedure 13 Release the harness of the outdoor temperature thermistor from the hook 14 Lift and remove the electrical box Step Procedure Points R9403 R5279 Electrical box ...

Страница 125: ...re disassembling work Step Procedure Points 1 Disconnect the connectors from the service monitor PCB S52 S102 Preparation Remove the electrical box according to the Removal of Electrical Box 2 Detach the 4 clamps with pliers 3 Remove the screws of the terminal board and the earth wire R5280 Service monitor PCB S52 S102 Clamps R5281 R12285 Terminal board Earth wire ...

Страница 126: ...fasten the hook on the right 5 Open the terminal board 6 Disconnect the harnesses 1 Black 2 White 3 Red L1 Black L2 Brown N1 White N2 Blue 7 Disconnect the 2 connectors for the reactor HR1 HR2 Step Procedure Points R5285 N2 N1 L1 3 2 1 L2 R11473 HR2 HR1 ...

Страница 127: ...oor Unit Removal Procedure 117 8 Remove the 3 screws of the main PCB 9 Unfasten the 4 hooks 10 Lift up and remove the main PCB Refer to page 16 for detail Step Procedure Points Main PCB R5287 R5288 Hooks Main PCB R5289 ...

Страница 128: ... more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the sound blanket back 2 Remove the sound blanket outer Since the piping ports are torn easily remove the sound blanket carefully 3 Remove the sound blanket top upper Sound blanket back R5293 Sound blanket outer R5294 Sound blanket top upper ...

Страница 129: ...lease the discharge pipe thermistor Be careful not to lose the clip for the thermistor 7 Cut the clamp and pull out the outdoor heat exchanger thermistor Step Procedure Points Sound blanket top lower R11398 Sound blanket inner R5296 R12286 Discharge pipe thermistor R12287 Clip Outdoor heat exchanger thermistor R5292 Clamp ...

Страница 130: ...n 1 Restore the piping by non oxidation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry Note Do not use a metal saw for cutting pipes by all means because the sawdust comes into...

Страница 131: ...as brazing machine Warning If the refrigerant gas leaks during work ventilate the room If the refrigerant gas is exposed to flames toxic gas may be generated Caution From the viewpoint of global environment protection do not discharge the refrigerant gas in the atmosphere Make sure to collect all the refrigerant gas Before working make sure that the refrigerant gas is empty in the circuit Be sure ...

Страница 132: ...ssor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the lead wires of the compressor Terminal cover R5302 R12204 Yellow V Red U Blue W ...

Страница 133: ...ed to flames toxic gas may be generated Warning Since it may happen that the refrigerant oil in the compressor catches fire prepare wet cloth so as to extinguish fire immediately Caution From the viewpoint of global environment protection do not discharge the refrigerant gas in the atmosphere Make sure to collect all the refrigerant gas Before working make sure that the refrigerant gas is empty in...

Страница 134: ... easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make it easy to disconnect Note Do not use a metal saw for cutting pipes by all means because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a steel plate so that the brazing flame cannot ...

Страница 135: ...Field Settings 1 Trial Operation 126 2 Field Settings 127 2 1 When 2 Units are Installed in 1 Room 127 2 2 Facility Setting Switch cooling at low outdoor temperature 128 2 3 Jumper and Switch Settings 128 3 Application of Silicon Grease to a Power Transistor and a Diode Bridge 129 ...

Страница 136: ... then restarts operation with the previous mode when the circuit breaker is restored In cooling mode select the lowest programmable temperature in heating mode select the highest programmable temperature Trial operation may be disabled in either mode depending on the room temperature After trial operation is complete set the temperature to a normal level 26 C to 28 C in cooling mode 20 C to 24 C i...

Страница 137: ...led in 1 room 1 of the 2 pairs of indoor unit and wireless remote controller can be set for different addresses Both the indoor unit PCB and the wireless remote controller need alteration Indoor Unit PCB Cut the jumper JA on PCB Wireless Remote Controller Cut the jumper J4 ADDRESS JA CUT EXIST 1 2 ADDRESS JA JB JC R12240 J4 ADDRESS EXIST 1 CUT 2 J4 R12241 ...

Страница 138: ... not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used A humidifier might cause dew jumping from the indoor unit outlet vent 4 Use the indoor unit at the highest level of airflow rate 2 3 Jumper and Switch Settings For the location of the jumper refer to page 14 For the location of the switch refer to page 16 LED A SW4 ON A B CD S102 SW...

Страница 139: ...or encouraging the heat radiation of the power transistor 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 Wipe off the old silicon grease completely on a radiation fin Apply the silicon grease evenly to the whole Do not leave any foreign object such as sold...

Страница 140: ...SiBE07 618_C 130 Appendix Part 9 Appendix 1 Piping Diagrams 131 1 1 Indoor Unit 131 1 2 Outdoor Unit 132 2 Wiring Diagrams 133 2 1 Indoor Unit 133 2 2 Outdoor Unit 134 ...

Страница 141: ... 1 1 Indoor Unit FDKS50 60CVMB FDXS50 60CVMB FIELD PIPING FIELD PIPING CuT 6 4CuT INDOOR UNIT SIROCCO FAN 6 4CuT CuT FAN MOTOR M REFRIGERANT FLOW HEAT EXCHANGER COOLING HEATING 12 7 FDXS50CVMB FDXS60CVMB FDKS50CVMB FDKS60CVMB THERMISTOR ON HEAT EXCH C 4D045449L ...

Страница 142: ...AS STOP VALVE WITH SERVICE PORT LIQUID STOP VALVE MUFFLER WITH FILTER MOTOR OPERATED VALVE MUFFLER WITH FILTER OUTDOOR AIR TEMPERATURE THERMISTOR CAPILLARY TUBE 2 CAPILLARY TUBE 3 3D051636N OUTDOOR UNIT 12 7CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT PROPELLER FAN MUFFLER HEAT EXCHANGER 7 9CuT 7 9CuT M COMPRESSOR 12 7CuT 12 7CuT 7 9CuT 7 9CuT 4 0CuT 4 0CuT CAPILLARY TUBE 4 ...

Страница 143: ...V1TR S1W X1M Z1C H1P H3P R1T R2T PCB1 PCB2 S1 S32 RTH1 GND H2 H3 H1 FAN MOTOR PRINTED CIRCUIT BOARD NOISE FILTER FERRITE CORE PHASE CONTROL CIRCUIT TERMINAL BLOCK OPERATION SWITCH THERMAL PROTECTOR M1F EMBEDDED THERMISTOR PILOT LAMP Z1C N 2 CONNECTOR GRN GRN WHT BLK RED YLW YLW X1M 2 3 1 CAUTION FIELD WIRING 2 3 1 outdoor SIGNAL RECEIVER TERMINAL FOR CENTRALIZED CONTROL WIRELESS REMOTE CONTROLLER ...

Страница 144: ...RED 3 15A 30A BLK MRM20 X1M BLU S51 W WHT RED BLU S20 W X2M 5 X12A 1 BLK SW1 ORG AC2 Y1E S70 R3T SA2 5 Z2C RED TERMINAL STRIP FIXED PLATE t t t OUTDOOR DISCHARGE CONDENSER 3D056145A outdoor indoor FIELD WIRING GRN GRN 3 1 BRN HR1 ORG V E2 1 RED 1 YLW V5 7 5 RED S10 BLK R1T MRM20 6 P S70 WHT 7 N M YLW L 5 R2T M1C Z2C WHT YLW BLU BRN 1 R3T BLU 1 Z3C 1 3 S101 PM1 W BLU M1F BLU Y1E 2 8 N 1 3 15A W 4 R...

Страница 145: ...RONIC EXPANSION VALVE COIL VARISTOR SURGE ARRESTER FUSE CONNECTOR MRC W OUTDOOR DISCHARGE CONDENSER 3D065097A outdoor SA2 FIELD WIRING YLW GRN SHEET METAL X1M indoor 4 WHT 5 E2 BLK S90 3 15A BLU 1 U BRN SW4 R3T S2 3 W HR1 6 PCB2 Z2C E1 Z3C V2 ORG 1 Z4C 2 FU2 N M ORG BRN 3 S20 POWER SUPPLY 6 X11A N 1 1 BLK U BLU YLW BLU LED A 30A BLU M BRN V3 Y1R R1T MRC WHT GRN TO INDOOR UNIT V 3 1 V S10 BLU M1C M...

Страница 146: ...R POWER MODULE PRINTED CIRCUIT BOARD REVERSING SOLENOID VALVE COIL TERMINAL STRIP FIXED PLATE t t t OUTDOOR DISCHARGE CONDENSER 3D050706K L1R GRN GRN YLW Z1C WHT WHT X1M HR2 GRN HR1 E1 Z5C E2 L SA2 MRM20 FU3 POWER SUPPLY 7 RED FU1 M1F V2 Z2C AC1 3 15A MRM10 L 30A N M 6 P 1 BRN N 9 8 BLU BRN S70 V11 Z3C 7 N ORG V6 AC2 1 WHT 2 BLU TO INDOOR UNIT BLK PM1 M1C Z6C Z4C X2M WHT X11A 1 U U FU2 1 1 RED 5 R...

Страница 147: ...r distributor and or retailer 1 Air conditioners should not be installed in areas where corrosive gases such as acid gas or alkaline gas are produced 2 If the outdoor unit is to be installed close to the sea shore direct exposure to the sea breeze should be avoided If you need to install the outdoor unit close to the sea shore contact your local distributor Cautions on product corrosion JMI 0107 J...

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