Daikin ARKH20CVMB9, Service Manual

Page 1: ...Inverter Pair Wall Mounted Type C Series Applied Models z z z zInverter Pair Cooling Only z z z zInverter Pair Heat Pump SiBE04 401 ...

Page 2: ...KS20CVMB ARKS20CVMB RKS25CVMB ARKS25CVMB RKS35CVMB ARKS35CVMB RKH20CVMB9 ARKH20CVMB9 RN20CVMB9 RKH25CVMB9 ARKH25CVMB9 RN25CVMB9 RKH35CVMB9 ARKH35CVMB9 RN35CVMB9 zHeat Pump Indoor Unit FTXS20CVMB 9 ATXS20CVMB 9 FTYN20CVMB9 FTXS25CVMB 9 8 ATXS25CVMB 9 FTYN25CVMB9 FTXS35CVMB 9 8 ATXS35CVMB 9 FTYN35CVMB9 Outdoor Unit RXS20CVMB ARXS20CVMB RXS25CVMB ARXS25CVMB RXS35CVMB ARXS35CVMB RXH20CVMB9 ARXH20CVMB9...

Page 3: ...aps Wide Angle Louvres and Auto Swing 32 1 3 Fan Speed Control for Indoor Units 33 1 4 Programme Dry Function 34 1 5 Automatic Operation 35 1 6 NIGHT SET Mode 36 1 7 INTELLIGENT EYE 37 1 8 HOME LEAVE Operation 39 1 9 Inverter Powerful Operation 40 1 10 Other Functions 41 2 Function of Main Structural Parts 42 2 1 Function of Thermistor 42 3 Control Specification 44 3 1 Mode Hierarchy 44 3 2 Freque...

Page 4: ...Codes and Description 95 4 2 Indoor Unit PCB Abnormality 96 4 3 Freeze up Protection Control or High Pressure Control 97 4 4 Fan Motor AC Motor or Related Abnormality 99 4 5 Thermistor or Related Abnormality Indoor Unit 100 4 6 Signal Transmission Error between Indoor and Outdoor Unit 101 4 7 OL Activation Compressor Overload 102 4 8 Compressor Lock 103 4 9 DC Fan Lock 104 4 10 Input Over Current ...

Page 5: ... 2 5 Removal of Four Way Valve 169 2 6 Removal of Compressor 171 2 7 Removal of PCB 173 3 Outdoor Unit RK X H C ARK X H C R Y N C 176 3 1 Removal of External Panels 176 3 2 Removal of Bell mouth 179 3 3 Removal of PCB and Electrical Box 180 3 4 Removal of Propeller Fan and Fan Motor 187 3 5 Removal of Partition Plate and Reactor 190 3 6 Removal of Sound Insulation Pad 193 3 7 Removal of Electronic...

Page 6: ...plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can 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 discharges during the repair work do not touch the dischargin...

Page 7: ...the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipment make sure that the new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient streng...

Page 8: ...t be located and the repair work must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it can generate toxic gases when it contacts flames such as fan and other heaters stoves and ranges When replacing the coin battery in the remote controller be sure to disposed of the old batte...

Page 9: ...ng and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet ...

Page 10: ...t of Functions 1 Part 1 Part 1 Part 1 Part 1 List of Functions List of Functions List of Functions List of Functions 1 List of Functions 2 1 1 High Grade Models 2 1 2 Standard Grade Models 4 1 3 Non lnverter Models 6 ...

Page 11: ...ility Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 2 2 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Silent Operation Flexibility Multi Split Split Type Compatible Indoor Unit Night Quiet Mode Automatic Outdoor Unit Silent Operation Manual Fle...

Page 12: ...estart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 2 2 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Silent Operation Flexibility Multi Split Split Type Compatible Indoor Unit Night Quiet Mode Automatic Outdoor Unit Silent Operation Manual Flexible Voltage Correspon...

Page 13: ...ability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 1 1 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Silent Operation Flexibility Multi Split Split Type Compatible Indoor Unit Night Quiet Mode Automatic Outdoor Unit Silent Operation Manual 2...

Page 14: ...ity Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 1 1 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Silent Operation Flexibility Multi Split Split Type Compatible Indoor Unit Night Quiet Mode Automatic Outdoor Unit Silent Operation Manual 2 2 Flexible Vol...

Page 15: ...lure Vertical Auto Swing Up and Down Self Diagnosis Digital LED Display Horizontal Auto Swing Right and Left Wiring Error Check 3 D Airflow Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Airflow Mode 3 Step Airflow H P Only Flexibility Multi Split Split Type Compatible Indoor Unit Comfort Control Auto Fan Speed Indoor Unit Silent Operation Flexible Voltage Correspondence Night Quiet Mod...

Page 16: ...SiBE04 401 Specifications 7 Part 2 Part 2 Part 2 Part 2 Specifications Specifications Specifications Specifications 1 Specifications 8 1 1 Cooling Only 8 1 2 Heat Pump 13 ...

Page 17: ...wnward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 195 273 784 195 273 784 195 Package...

Page 18: ...Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 185 273 784 185 273 784 185 Packaged Dimensions W D H mm 834 325 258...

Page 19: ...d Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 195 273 784 195 273 784 195 Pac...

Page 20: ...eft Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 185 273 784 185 273 784 185 Packaged Dimensions W...

Page 21: ...Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 185 273 784 185 273 784 185 Packaged Dimensions W D H mm 834 325 258 834 325 258 834 325 258 Weight kg 7 5 7 5 7 5 Gross...

Page 22: ...Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 195 273 784 195 Packaged Dimensions W D ...

Page 23: ...ction Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Dimensions H W D mm 273 784 195 Packaged Dimensions W D H mm 834 325 258 Weight kg 7 5 Gross Weight kg 11 Operation Sound H M L SL dBA 39 33 26 23 39 34 29 26 Sound Power H dBA ...

Page 24: ...izontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 185 273 784 185 Packaged Dimensions W D H mm 834 325 258 834 3...

Page 25: ...n Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Dimensions H W D mm 273 784 185 Packaged Dimensions W D H mm 834 325 258 Weight kg 7 5 Gross Weight kg 11 Operation Sound H M L SL dBA 39 33 26 23 39 34 29 26 Sound Power H dBA 57 5...

Page 26: ... Auto Air Direction Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 195 273 784 195 Pack...

Page 27: ...to Air Direction Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Dimensions H W D mm 273 784 195 Packaged Dimensions W D H mm 834 325 258 Weight kg 7 5 Gross Weight kg 11 Operation Sound H M L SL dBA 39 33 26 23 39 34 29 26 Sound P...

Page 28: ...ion Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 185 273 784 185 Packaged Dimensions ...

Page 29: ... Air Direction Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Dimensions H W D mm 273 784 185 Packaged Dimensions W D H mm 834 325 258 Weight kg 7 5 Gross Weight kg 11 Operation Sound H M L SL dBA 39 33 26 23 39 34 29 26 Sound Pow...

Page 30: ...lter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 273 784 185 273 784 185 Packaged Dimensions W D H mm 834 325 258 834 325 258 Weight kg 7 5 7 5 Gross Weight kg 11 11 Operation Sound...

Page 31: ...wnward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Dimensions H W D mm 273 784 185 Packaged Dimensions W D H mm 834 325 258 Weight kg 7 5 Gross Weight kg 11 Operation Sound H M L SL dBA 39 33 26 39 34 29 Sound Power H dBA 57 57 Outdoor Units RYN35CVMB9 Casing Color Ivor...

Page 32: ...ed Circuit Board Printed Circuit Board Printed Circuit Board Connector Wiring Diagram Connector Wiring Diagram Connector Wiring Diagram Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 24 1 1 Indoor Unit 24 1 2 Outdoor Unit RK X S C ARK X S C 26 1 3 Outdoor Unit RK X H C ARK X H C R Y N C 28 ...

Page 33: ...lized control HA 5 S26 Connector for signal receiver PCB 6 S27 S36 Connector for control PCB 7 S32 Connector for heat exchanger thermistor 8 S35 Connector for INTELLIGENT EYE sensor PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function auto restart Refer to page 205 for detail 3 SW7 Forced operation ON OFF switch ...

Page 34: ...am Printed Circuit Board Connector Wiring Diagram 25 PCB Detail PCB 1 Control PCB PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE sensor PCB Control PCB V1 Fu1 S1 SW7 LED1 LED2 LED3 RTH1 S27 S7 S6 S26 S32 JC JB JA S35 S21 Signal Receiver PCB R4011 S36 R3321 ...

Page 35: ... Connector for electronic expansion valve coil 4 S30 Connector for compressor motor 5 S40 Connector for overload protector 6 S70 Connector for fan motor 7 S80 Connector for four way valve coil 8 S90 Connector for thermistors outdoor air heat exchanger discharge pipe 9 HC3 HC4 HL3 HN3 Connector for filter PCB 1 FU1 FU2 Fuse 3 15A 2 FU3 Fuse 20A 3 LEDA Service monitor LED 4 V1 V2 V3 Varistor 5 J8 Fa...

Page 36: ...nnector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 27 PCB Detail PCB 1 Control PCB outdoor unit PCB 2 Filter PCB FU2 3 15A S30 HN3 HC3 S70 J8 HC4 R3322 S40 LEDA S90 HL3 FU1 3 15A V1 S80 S20 S10 FU3 20A S11 R3323 V3 V2 ...

Page 37: ... R Y N C Connectors Note Other designations PCB Detail Control PCB outdoor unit 1 S20 Connector for electronic expansion valve 2 S70 Connector for fan motor 3 S80 Connector for four way valve 4 S90 Connector for thermistors outdoor air heat exchanger discharge pipe 1 FU1 Fuse 3 15A 2 FU3 Fuse 20A 3 LEDA Service monitor LED 4 V1 V2 V3 Varistor ...

Page 38: ...rter Powerful Operation 40 1 10 Other Functions 41 2 Function of Main Structural Parts 42 2 1 Function of Thermistor 42 3 Control Specification 44 3 1 Mode Hierarchy 44 3 2 Frequency Control 45 3 3 Controls at Mode Changing Start up 47 3 4 Discharge Pipe Control 48 3 5 Input Current Control 49 3 6 Freeze up Protection Control 49 3 7 Heating Peak cut Control 50 3 8 Fan Control 50 3 9 Liquid Compres...

Page 39: ...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...

Page 40: ... air condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low 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 56 60...

Page 41: ...resses the warm air above the floor to reach the entire room Cooling Mode During cooling mode the flap retracts into the indoor unit Then cool air can be blown far and pervaded all over the room Wide Angle Louvres The louvres made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution Auto Swing The following table explains the auto swing process ...

Page 42: ...1 During powerful operation fan operate H tap 50 90 rpm 2 Fan stops during defrost operation Automatic Air Flow Control for Heating The following drawing explains the principle for fan speed control for heating Automatic Air Flow Control for Cooling The following drawing explains the principle of fan speed control for cooling Step Cooling Heating Dry mode LLL Heating thermostat OFF 25 35kW class 5...

Page 43: ... 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 Temperature ON point at which operation starts Frequency switching point Temperaturedifference for operation stop 24ºC Room temperature at startup 0 5ºC 1 5ºC 18ºC 18ºC 1 0ºC...

Page 44: ...ler setting temperature plus correction value correction value cooling 0 deg heating 2 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 of cooling or ...

Page 45: ...IGHT SET circuit continues heating or cooling the room at the set temperature for the first one hour then automatically lowers the temperature setting slightly in the case of cooling or raises 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...

Page 46: ...n a microcomputer 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 sifted 2 C from the set temperature COOL 2 C higher DRY 1 C higher AUTO according to the operation mode at that time 1 In case of FAN mode the fan speed reduces by 50 rpm If the sensor detects the outputs 10 times sec or more it judges humans exist 1sec sa...

Page 47: ...s so as to prevent this phenomena After this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the conditions to conduct thermostat off depending on the room temperature In or after this forty minutes if the sensor detects human motion detection signal it let the set temperature and the fan speed return to the original set point keeping a normal operation Others The ...

Page 48: ...ed the function becomes effective when the operation is started If this button is pressed in powerful operation the powerful operation is reset and this function becomes effective The HOME LEAVE button is ineffective in dry mode and fan mode 2 Details of Function A mark representing HOME LEAVE is indicated on the liquid crystal display of the remote controller The indoor unit is operated according...

Page 49: ... in a period of twenty minutes Ex Powerful operation in cooling mode Operation mode Fan speed Target set temperature COOL H tap 90 rpm 18 C DRY Dry rotating speed 50 rpm Normally targeted temperature in dry operation Approx 2 C HEAT H tap 90 rpm 30 C FAN H tap 90 rpm AUTO Same as cooling heating in Powerful operation The target is kept unchanged R2823 Target temp Fan 80rpm Set temp 18 C Powerful O...

Page 50: ...Purifying Filter with Photocatalytic Deodorizing Function This filter incorporates the benefits the Air Purifying Filter and Photocatalytic Deodorizing Filter in a single unit Combining the two filters in this way increases the active surface area of the new filter This larger surface area allows the filter to effectively trap microscopic particles decompose odours and deactivate bacteria and viru...

Page 51: ...the compressor rises abnormally the operating frequency drops or the operation must be halted 2 The discharge pipe thermistor is used for detecting the discharge thermistor disconnected C Indoor Heat Exchanger Thermistor DCN 1 The indoor heat exchanger thermistor is used for controlling target discharge pipe temperature Set a target discharge pipe temperature according to the outdoor and indoor he...

Page 52: ...control 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 must be halted 2 The discharge pipe thermistor is used for detecting the discharge thermistor disconnected C Indoor Heat Exchanger Thermistor DCN 1 The indoor heat exchanger thermistor is used for controlling target...

Page 53: ...d cooling including drying 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 command Preheat operation During C capacitor is discharging Stop R2829 Air cond...

Page 54: ...ost 3 Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions Four way valve operating compensation draft prevention pressure difference upkeep 4 Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency For Cooling Only Model 1 Determine command frequency Command frequ...

Page 55: ... sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 I control If the operating frequency is not change more than a certain fixed time adjust the frequency 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 Frequency man...

Page 56: ... 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 3 3 3 Four Way Valve Operation Compensation Outline Heat Pump Only At the beginning of the operation as the four way valve is switched acquire the differential pressure required for activating the four way valve by having output th...

Page 57: ...tline The discharge pipe temperature is used as the compressor s internal temperature If 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 FCG 2 FCG 1 TCG 1 TCG 2 TCG 3 88 64 48 240 360 180 Zone Control contents Stop zone When the temperature r...

Page 58: ... without change In the unchanged zone the frequency limit will remain In the return reset zone the frequency limit will be cancelled 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 temperature becomes higher than a certain level model by model 2 In case the operation mode is heating o...

Page 59: ...ay when stopped 3 ON OFF control when cooling operation 4 Tap control when drooping function is working 5 Fan control when forced operation 6 Fan control in low noise mode 7 Fan control during heating operation 8 Fan control in the quiet mode 9 Fan control in the powerful mode 10 Fan control for pressure difference upkeep Detail Fan OFF Control when Stopped Fan OFF delay for 60 seconds must be mad...

Page 60: ...on 6 minutes after the compressor is started and more than 44 minutes of accumulated time pass since the start of the operation or ending the defrosting Conditions for Canceling Defrost The judgment must be made with heat exchanger temperature 4 C 22 C A RK X S models A RK X H R Y N models Frequency Compressor Four way valve Fan Electronic expansion valve opening ON OFF ON OFF ON OFF 0Hz 5sec 350p...

Page 61: ...ischarge 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 Defrost control FD 1 Pressure e...

Page 62: ...isconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature If any is disconnected open the electronic expansion valve according to the outdoor air temperature and the operating frequency and operate for a specified time and then stop After 3 minutes of waiting restart the unit a...

Page 63: ...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...

Page 64: ... are 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 specified frequency 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 consumption II...

Page 65: ...oltage is detected each time equipment operation starts Cooling room temperature indoor heat exchanger temperature 4 0 C outdoor heat exchanger temperature outdoor temperature 4 0 C Heating indoor heat exchanger temperature room temperature 4 0 C outdoor temperature outdoor heat exchanger temperature 3 0 C Item Forced Cooling Forced operation allowing conditions 1 The outdoor unit is not abnormal ...

Page 66: ...temperature rises the operation will start again Caution 1 If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind provide a windbreak wall 2 Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings 3 Do not place humidifiers or other items which might raise the humidity in rooms where faci...

Page 67: ...Control Specification SiBE04 401 58 Function and Control ...

Page 68: ...Instruction 61 2 1 Safety precautions 61 2 2 Names of parts 63 2 3 Preparation before Operation 66 2 4 AUTO DRY COOL HEAT FAN Operation 69 2 5 Adjusting the Air Flow Direction 71 2 6 POWERFUL Operation 73 2 7 OUTDOOR UNIT SILENT Operation 74 2 8 HOME LEAVE Operation 75 2 9 INTELLIGENT EYE Operation 77 2 10 TIMER Operation 79 2 11 Care and Cleaning 81 2 12 Troubleshooting 84 ...

Page 69: ...ever 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 ov...

Page 70: ...rs 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 dealer or a qualified technician In order to avoid electric shock fire or injury if you detect any abnormally such as smell of fire stop the operation an...

Page 71: ...nage Incomplete draining may cause wetting of the building furniture etc Do not operate the air conditioner with wet hands Do not wash the indoor unit with excessive water only use a slightly wet cloth Do not place things such as vessels containing water or anything else on top of the unit Water may pene trate into the unit and degrade electrical insulations resulting in an electric shock To insta...

Page 72: ...SiBE04 401 Instruction System Configuration 63 2 2 Names of parts 4 Indoor Unit ON OFF 1 3 4 5 6 7 9 10 11 14 15 16 8 12 13 2 ...

Page 73: ... this switch once to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the remote controller is missing 13 Operation lamp green 14 TIMER lamp yellow page 20 15 HOME LEAVE lamp red page 16 16 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear a short beep Operation start be...

Page 74: ...his button once 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 SILENT button for OUTDOOR UNIT SILENT operation page 15 9 FAN setting button It selects the air flow rate setting 10 SWING button page 12 11 SENSOR button for INTELLIGENT EYE operation page 18 12 ON TIMER button page 21 13 OFF TIMER button page 20 14 ...

Page 75: ...eplace 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 Using manganese batteries reduces the lifespan The attached batteries are provided for the initial use of the system The usable perio...

Page 76: ... Fix the holder to a wall a pillar etc with the screws supplied with the holder 3 Place the remote controller in the remote controller holder ATTENTION About remote controller Never expose the remote controller to direct sunlight Dust on the signal transmitter or receiver will reduce the sensitivity Wipe off dust with soft cloth Signal communication may be disabled if an electronic starter type fl...

Page 77: ...urn 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 C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT SENSOR ON CANCEL OFF 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 thi...

Page 78: ...ances the mode setting in sequence AUTO DRY COOL HEAT FAN 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off To change the temperature setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not variable Press to raise the temperature and press to lower the temperat...

Page 79: ...l 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 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 DRY operation The computer chip works to rid the ...

Page 80: ...fort To adjust the horizontal blades flaps 1 Press SWING button The display will light up and the flaps will begin to swing 2 When the flaps have reached the desired position press SWING button once more The display will go blank The flaps will stop moving C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT SENSOR ON CANCEL OFF O N 1 2 ...

Page 81: ...nds on the operation mode See the figure ATTENTION Always use a remote controller to adjust the flaps angle If you attempt to move it forcibly with hand when it is swinging the mechanism may be broken Be careful when adjusting the louvers Inside the air outlet a fan is rotating at a high speed In DRY mode or COOL mode In HEAT or FAN mode When stop operation Upper limit in cooling Lower limit in co...

Page 82: ...tion there are some functions which are not available n To cancel POWERFUL operation 2 Press POWERFUL button again NOTE nNotes on POWERFUL operation In COOL and HEAT mode To maximize the cooling heating effect the capacity of outdoor unit must be increased and the air flow rate be fixed to the maximum setting The temperature and air flow settings are not variable In DRY mode The temperature settin...

Page 83: ...E n Note on OUTDOOR UNIT SILENT operation C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT SENSOR ON CANCEL OFF 1 2 15 This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT SILENT operation cannot be used at the same time Priority is given to POWERFUL operation If operation is stopped using the remote contr...

Page 84: ...ease set the temperature and air flow rate for HOME LEAVE operation Record your preferred temperature and air flow rate 1 Press HOME LEAVE button Make sure is displayed in the remote control ler display 2 Adjust the set temperature with or as you like 3 Adjust the air flow rate with FAN setting button as you like Home leave operation will run with these settings the next time you use the unit To c...

Page 85: ...ill be wel comed by a comfortably air condi tioned room Push the HOME LEAVE Operation button again and the air conditioner will adjust capacity to the set tem perature for normal operation Set the unit to HOME LEAVE Opera tion before leaving the living room when going to bed The unit will maintain the temper ature in the room at a comfortable level while you sleep When you enter the living room in...

Page 86: ...TELLIGENT EYE operation 1 Press SENSOR button To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again EX C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT SENSOR ON CANCEL OFF 1 2 When somebody in the room Normal operation When nobody in the room 20 min after start energy saving operation Somebody back in the room Back to normal operation ...

Page 87: ...ct moving objects further than 5m away Check the application range Sensor detection sensitivity changes according to indoor unit location the speed of pass ersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operatipon will not go on during powerful operation Night set mode page 20 will not...

Page 88: ...tton 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 Notes 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 replaced When operating the unit via the ON OFF ...

Page 89: ... 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 breaker has turned OFF After a power failure After replacing batteries in the remote controller C...

Page 90: ...grille Set the 3 keys of the front grille into the slots and push them in all the way Close the front grille slowly and push the grille at the 3 points 1 on each side and 1 in the middle Check to see if the rotating axis in the upper center section is moving 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...

Page 91: ...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 Air purifying filter with photocatalytic deodorizing function gray The Air purifying filter with photocatalytie deodorizing function can be renewed by washing it with water once every 6 months We recommend replacing it once every 3 years Maintenance 1 Remove d...

Page 92: ... Check that the earth wire is not disconnected or broken Check that the drain comes smoothly out of the drain hose during COOL or DRY operation If no drain water is seen water may be leaking from the indoor unit Stop operation and consult the ser vice shop if this is the case Operation with dirty filters 1 cannot deodorize the air 2 cannot clean the air 3 results in poor heating or cooling 4 may c...

Page 93: ...am when the air conditioner is in defrost operation In COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mists come 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...

Page 94: ... Are the air flow rate and the air direction set appropriately Is the unit set to the INTELLIGENT EYE mode page 18 Operation stops suddenly OPERATION 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 ai...

Page 95: ...side of the air conditioner may get foul after several seasons of use resulting in poor performance It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user For specialist maintenance contact the service shop where you bought the air conditioner The maintenance cost must be born by the user Call the service shop immediately After a power failure The ...

Page 96: ...RATURE SENSOR C9 FAULTY SUCTION AIR TEMPERATURE SENSOR OUTDOOR UNIT EA COOLING HEATING SWITCHING ERROR E5 OL STARTED E6 FAULTY COMPRESSOR START UP E7 DC FAN MOTOR FAULT E8 OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL F6 HIGH PRESSURE CONTROL IN COOLING H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR H8 CT ABNORMALITY H9 FAULTY SUCTION A...

Page 97: ...Instruction SiBE04 401 88 System Configuration ...

Page 98: ...nit 100 4 6 Signal Transmission Error between Indoor and Outdoor Unit 101 4 7 OL Activation Compressor Overload 102 4 8 Compressor Lock 103 4 9 DC Fan Lock 104 4 10 Input Over Current Detection 105 4 11 Four Way Valve Abnormality 106 4 12 Discharge Pipe Temperature Control 108 4 13 High Pressure Control in Cooling 109 4 14 Position Sensor Abnormality 111 4 15 DC Voltage Current Sensor Abnormality ...

Page 99: ...uipment 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 LEDA on the PCB The flashing green LED indicates normal condition of microcomputer operation ON OFF Indicator lamps HOME LEA...

Page 100: ... C or higher only for heat pump model and cooling operation cannot be used when the outdoor air temperature is below 10 C Note Diagnosis with remote controller indication 95 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 th...

Page 101: ...ly until a continuous 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 11 E7 21 UA...

Page 102: ...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...

Page 103: ...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 95 8 Exit from the diagnosis mode Press the MODE button R4088 R4089 ...

Page 104: ...emperature thermistor abnormality 100 Outdoor Unit E5 OL activation compressor overload 102 E6 Compressor lock 103 E7 DC fan lock 104 E8 Input over current detection 105 EA Four way valve abnormality 106 F3 Discharge pipe temperature control 108 F6 High pressure control in cooling 109 H6 Position sensor abnormality 111 H8 DC voltage current sensor abnormality 112 H9 Outdoor air thermistor or relat...

Page 105: ...ss 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 YES Is it normal NO Correct connections Replace PCBs R1400 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Model Type Connect...

Page 106: ...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...

Page 107: ...umulation on the indoor unit heat exchanger YES YES Is there any short circuit Is it very dirty Is it very dirty Does it conform to the thermistor characteristic chart NO 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 Caution Be sure to turn off power switch before connect or disconnect con...

Page 108: ...due to faulty indoor unit PCB Troubleshooting Check No 16 Refer to P 131 Rotate the fan by hand Check No 16 Check Hall IC Operate the fan Does it rotate NO Does it rotate smoothly Is there an output Is it at the rated voltage Is there conductivity NO Check the capacitor s conductivity Check the fan motor voltage immediately after re start Is it at the rated voltage Check the fan motor voltage NO N...

Page 109: ...ess than 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 6 Refer to P 126 C4 Heat exchanger thermistor C9 Room temperature thermistor Check the connector connection YES Correct the connection Replace the thermistor Replace the indoor unit PCB Replace the...

Page 110: ...nal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire No 2 Troubleshooting Check No 10 Refer to P 129 Check the outdoor unit s LED A Check the indoor unit outdoor unit connection wires YES YES Correct the indoor unit outdoor unit connection wires Diagnose the outdoor unit Replace the connection wires between the indoor and outdoor units Re...

Page 111: ...ubleshooting Check No 4 Refer to P 124 Check No 5 Refer to P 125 Check No 6 Refer to P 126 Check No 11 Refer to P 129 Insert the thermistor in position Replace the discharge pipe thermistor Replace the valve itself or the coil Replace the four way valve coil or the valve itself Replace the outdoor unit PCB Refer to the refrigerant line check procedure Replace the outdoor unit PCB R2841 Caution Be ...

Page 112: ...upposed Causes Compressor locked Compressor harness disconnected Troubleshooting Note If the model doesn t have SPM replace the outdoor unit PCB Turn off the power Disconnect the harnesses U V and W Inverter checker Part No 1225477 Correct the power supply or replace the SPM Replace the outdoor unit PCB Replace the compressor Check the electronic expansion valve Replace it as required Replace the ...

Page 113: ...n for about 5 minutes normal Supposed Causes Fan motor breakdown Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matters stuck in the fan Troubleshooting Check No 15 Refer to P 130 Turn off the power and reconnect the connector Remove Replace the outdoor unit fan motor Replace the outdoor unit PCB R2843 Caution Be sure to turn off power switch before connect ...

Page 114: ...have SPM replace the outdoor unit PCB Replace the outdoor unit PCB Inverter checker Part No 1225477 Correct the power supply or replace the SPM Replace the outdoor unit PCB R2952 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Input current flowing above its stop level NO YES Any LED off YES NO Check with the inverter checker Turn off...

Page 115: ...ecked 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 ...

Page 116: ...ower switch before connect or disconnect connector or parts damage may be occurred Four way valve coil disconnected loose YES YES NO Functioning NO Check No 11 Check the refrigerant line Malfunctioning l Insufficient gas l Water mixed l Stop valve defective Harness out of connector NO YES Disconnect the harness from the connector Resistance between harnesses about 3kΩ 0 5kΩ Malfunctioning Function...

Page 117: ...ir temperature thermistor defective Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective Troubleshooting Check No 4 Refer to P 124 Check No 6 Refer to P 126 Check No 11 Refer to P 129 Stop temperatures A RK X S A RK X H R Y N 1 above 45Hz rising above 40Hz dropping 110 97 85 2 30 45Hz rising 25 40Hz dropping 105 92 80 3 below 30Hz ris...

Page 118: ...ng 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 outd...

Page 119: ...r the connector 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 Change the installation location Clean the heat exchanger Check the installation space Check No 9 Outdoor fan check Judgment Check No 6 Heat exchanger thermistor check Judgment Check No 7 Installation conditio...

Page 120: ...e disconnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 13 Refer to P 130 Replace the outdoor unit PCB Replace the outdoor unit PCB Reconnect as specified Inverter checker Part No 1225477 Correct the power supply or replace the outdoor unit PCB Replace the compressor R3041 Caution Be sure to turn off power ...

Page 121: ...cision Conditions The compressor running frequency is below 52 Hz The input current is also below 0 5 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...

Page 122: ...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...

Page 123: ...t exchanger thermistor l Outdoor air thermistor Replace the following thermistor l Indoor heat exchanger thermistor Replace the outdoor unit PCB Replace the indoor unit PCB R4097 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error displayed again on remote controller NO YES YES YES NO Indoor heat exchanger thermistor functioning NO ...

Page 124: ...in thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 80 C 90 C Reset is made when the temperature drops below 70 C 80 C value for A RK X H R Y N models 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 Outd...

Page 125: ...ff power switch before connect or disconnect connector or parts damage may be occurred Error again or outdoor unit fan activated YES l Fin thermistor NO Slightly dirty Check No 9 Check the outdoor unit fan or related Malfunctioning Radiation fin dirty Too dirty Functioning Thermistor as specified in its characteristic chart Above 80 C 90 C NO YES NO YES Check the radiation fin temperature Check No...

Page 126: ...mperature with the compressor on is above 90 C 100 C for A RK X H R Y N models 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 temp...

Page 127: ...istor Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB Clean up the radiation fin R4017 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error displayed again YES NO Slightly dirty Check No 9 Check the outdoor unit fan or related Malfunctioning Radiation fin dirty Too dirty Functioning Therm...

Page 128: ...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...

Page 129: ...have been disconnected and reconnected for part replacement for example and the system is interrupted by an output over current take the following procedure Error again NO YES NO YES Voltage as rated YES NO Short circuit or breakage between compressor s coil phases NO YES Normal YES NO Any LED off Turn off the power and turn it on again to get the system started See if the same error occurs Turn o...

Page 130: ...del to model Gas shortage detection II If a gas shortage error 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 Gas shortage detection III When the difference of the temperature is smaller than it is regarded as insufficient gas Supposed Cause...

Page 131: ...it heat exchanger thermistor 1 Replace the PCB 2 Replace the compressor Procedure complete R3318 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Any thermistor disconnected YES Malfunctioning NO Stop valve closed NO YES YES NO Gas shortage error again Functioning Check No 6 Check the thermistors YES NO Oil oozing at internal piping NO...

Page 132: ...n Continuous run for about 10 minutes normal Supposed Causes Supply voltage not as specified Over voltage detection circuit defective PAM control part s defective Troubleshooting Note If the model doesn t have SPM replace the outdoor unit PCB Check the supply voltage Correct the power supply Check for such factors for a long term Replace the SPM Replace the outdoor unit PCB R2957 Caution Be sure t...

Page 133: ...ty 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 2 mount a good coil which generated latching sound in the EV unit that did not generate latching sound...

Page 134: ...nit PCB Replace the four way valve coil Replace the four way valve R3047 NO Four way valve coil Cooling dry No continuity Heating Continuity YES YES Four way valve coil resistance at 3kΩ 0 5kΩ NO S80 voltage at DC 180 220 V with compressor on Fig 1 Disconnect the four way valve coil from the connector and check the continuity Fig 1 Voltage at S80 DC180 220V ON Compressor Time ...

Page 135: ...rs 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 ...

Page 136: ...y the outdoor unit The outside air temperature shall be 43 C or lower Check the allowable dimensions of the air suction and discharge area Is the air flow blocked by obstacles or winds blowing in the opposite direction R1438 Abnormal YES YES YES Does the discharged air from other outdoor unit cause an increase of the suction air temperature NO NO NO Is the heat exchanger very dirty Discharge press...

Page 137: ... functioning Go to Check No 15 Check the fan motor lead wire connector for secure connection Abnormal YES NO NO Continuity Are the resistance at connector leads 1 red black 2 white black Check the fan capacitor for continuity Does the outdoor fan rotate Does the outdoor unit fan start just after the power is turned on Check the outdoor fan system YES YES NO Normal No continuity Repair Replace the ...

Page 138: ...veform disturbance near the zero cross sections circled in Fig 2 5 1 8 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 Conduct the check after operating the equipment for a sufficient length of time Correct the problem Conduct vacuum drying Replace the refrigerant Is the discharge thermister ...

Page 139: ... off and disconnect the connector S70 2 Make sure there is about DC 270 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 is blown out the outdoor unit fan may also be in trouble Check the fan too If the voltage in Step 2 is not applied it m...

Page 140: ...N operation OFF and the connector connected check the following Output voltage of about 5 V between pins 1 and 3 Generation of 3 pulses between pins 2 and 3 when the fan motor is operating Failure of 1 Æ faulty PCB Æ Replace the PCB Failure of 2 Æ faulty Hall IC Æ Replace the fan motor Both 1 and 2 result Æ Replace the PCB ...

Page 141: ...Check SiBE04 401 132 Service Diagnosis ...

Page 142: ...RK X S C ARK X S C 156 2 1 Removal of Panels and Fan Motor 156 2 2 Removal of Electrical Box 163 2 3 Removal of Reactor and Partition Plate 165 2 4 Removal of Sound Blanket 167 2 5 Removal of Four Way Valve 169 2 6 Removal of Compressor 171 2 7 Removal of PCB 173 3 Outdoor Unit RK X H C ARK X H C R Y N C 176 3 1 Removal of External Panels 176 3 2 Removal of Bell mouth 179 3 3 Removal of PCB and El...

Page 143: ...al features If ON OFF button is kept pushing for 5 seconds a forced cooling operation will be carried out for approx 15 minutes 2 Removing air filters 1 Pull protrusions on left and right sides of panel with fingers and open front grille all the way 2 Lift center section of air filter and disengage hooks Remove air filter by pulling forward Left and right filters are interchangeable To re install ...

Page 144: ...t provided on the both sides of the unit s panel and open up the panel to the position higher than it will stop Support the front panel by one hand while remove the rotation axis at the upper center by the other hand And pull out the front panel forward to remove 2 Remove front panel from the unit Step Procedure Points ...

Page 145: ...Indoor Unit SiBE04 401 136 Removal Procedure 3 When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel Step Procedure Points ...

Page 146: ...rning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Opening and closing of service cover 1 Remove a service cover mounting screw Open service cover upward A switch for field setting is not provided in particular ...

Page 147: ...ipped in the existing models are not provided 2 Disengage the two hooks on the upper part In case that the hooks are not pressed from above remove the front panel and then remove the grille while pushing the hook through a clearance between the front grille and the heat exchanger At the upper part there are two hooks in the left and the right Disengage the hooks by pressing knobs with a screwdrive...

Page 148: ... Removal Procedure 139 3 The front grille can be removed in a manner to pull out the upper part forward and lift up the lower part When restoring the grille Make sure whether each hook is set as it was Step Procedure Points ...

Page 149: ...after turning off all power supplies before disassembling work Step Procedure Points 1 Remove horizontal blade 1 Lift horizontal blade to open position Screw stoppers inside the flap which were equipped in the existing models are not provided 2 Disengage horizontal blade from blade retaining section 3 Bend blade slightly and remove it from the unit ...

Page 150: ... the blade to the tip while rotating it 2 Restore the two fixed parts of the horizontal blade onto the hook 2 Removal of vertical blade 1 Disengage the vertical blade s joint from the fixed plate 2 Remove the blade forward Five vertical blades are integrated with the joint rod so only one blade can t be exchanged Step Procedure Points ...

Page 151: ...ore disassembling work Step Procedure Points Remove front grill 1 Remove electrical box 1 Disconnect the connection wires 2 Disconnect connectors S1 and S7 of fan motor Pay attention to the direction of the retainer of the thermistor so that the retainer will not touch the harness same as the existing models 3 Disconnect one connector S6 of swing motor 4 Remove heat exchanger thermistor ...

Page 152: ...1 Indoor Unit Removal Procedure 143 5 Remove a screw on the terminal board The electrical box can be removed instead of disengaging the terminal board 6 Remove a screw on the electrical box Step Procedure Points ...

Page 153: ...Indoor Unit SiBE04 401 144 Removal Procedure 7 Pull up the electrical box forward to remove A hook is provided on the behind Step Procedure Points ...

Page 154: ...moval of PCB 1 Remove the shelter 2 Disengage the front plate of the electrical box Disengage the knobs by pushing the two hooks at the top and the bottom 3 Sliding to the left the front part of the electrical box can be removed Step Procedure Points ...

Page 155: ...Indoor Unit SiBE04 401 146 Removal Procedure 4 Disengage the four knobs on the back of the signal receiver PCB 5 Signal receiver PCB Step Procedure Points ...

Page 156: ...1 To remove swing motor assembly remove two screws Manual adjusting for the vertical blades Provide a supporter so that the joint link will not drop off in case the horizontal blade assembly is removed Step Procedure Points Glass tabu fuse 3 15A 250V S7 Fan motor S6 Swing motor S32 Heat exchanger thermistor JC JB JA Address S21 HA terminal R2541 ...

Page 157: ...A into refrigerating cycle Mixing of air or other gas causes abnormal temperature rise in refrigerating cycle and this results in pipe rupture or personal injuries Pay attention so that the residual drain will not make a floor dirty In case that a drain hose is buried inside a wall remove it after the drain hose in the wall is pulled out 1 Remove the drain hose Make curing so that the residual dra...

Page 158: ...to an angle of 10 to 20 degrees Be careful to prevent pipe deformation 6 Disengage hooks located right and left side and pull heat exchanger forward The hooks are symmetrically placed in the right and the left Lifting the heat exchanger slightly upward to the right the left hook comes to be disengaged easily Step Procedure Points ...

Page 159: ...1 150 Removal Procedure 7 Lift and remove heat exchanger Caution When removing or re installing heat exchanger be sure to wear protective gloves or wrap heat exchanger with cloths Fins can cut fingers Step Procedure Points ...

Page 160: ... power supplies before disassembling work Step Procedure Points 1 Disconnect drain hose The drain pan is integrated with the bottom plate 2 Pull out the drain plug in the left on the drain pan by hand 3 Insert the drain hose Push it into the inner part firmly 4 Push the drain plug into the right by Allen wrench Push it into the inner part firmly ...

Page 161: ...1 7 Removal of Fan Rotor and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove heat exchanger 1 To remove right side plate remove three screws ...

Page 162: ...SiBE04 401 Indoor Unit Removal Procedure 153 2 Disengage hook 3 Loosen the hexagon head set screw on the fan rotor Step Procedure Points ...

Page 163: ...Indoor Unit SiBE04 401 154 Removal Procedure 4 Remove the motor and fan rotor 5 Remove a screw on the left side plate Step Procedure Points ...

Page 164: ...oval Procedure 155 6 Disengage a hook from the backward 7 Since the fan bearing is made of rubber push it strongly off from the inside The bearing can be removed just as the left side plate is attached with Step Procedure Points ...

Page 165: ...it 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Features Take care not to cut your finger by the fins of the heat exchanger The stop valve cover is united with the 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 ...

Page 166: ... 2 Remove the panels 1 Loosen the 3 screws front right left and lift the top panel 2 Remove the drip proof plate 3 Disconnect the connector for fan motor S70 The fan motor is united with the front panel 4 Loosen the 5 screws of the front panel Step Procedure Points ...

Page 167: ... panel has 4 hooks The fan motor is united with the front panel 3 Remove the fan motor The screw has reverse 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 Step Procedure Points ...

Page 168: ...ws and lift the bell mouth to undo the hooks Remove the bell mouth 4 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 Step Procedure Points R3249 Lead wire Propeller fan ...

Page 169: ...oor Unit RK X S C ARK X S C SiBE04 401 160 Removal Procedure 5 Loosen the 4 screws to remove the fan motor M4 16 DC fan motor 6 Loosen the 2 screws to remove the fan motor fixing frame Step Procedure Points ...

Page 170: ... X S C ARK X S C Removal Procedure 161 4 Remove the right side panel 1 Loosen the 2 screws on the rear side 2 Loosen the 3 screws on the right side 3 Loosen the screw and lift the connection port to remove Step Procedure Points ...

Page 171: ...Outdoor Unit RK X S C ARK X S C SiBE04 401 162 Removal Procedure When reassembling make sure to fit the hook Step Procedure Points ...

Page 172: ...power 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 Disconnect the relay connector for compressor lead wire 3 Disconnect the connector for four way valve S80 When reassembling coil the excessive lead wire and hang the loop on the hook ...

Page 173: ...moval Procedure 4 Release the discharge pipe thermistor Pay attention so as not to lose the clip for thermistor 5 Release the heat exchanger thermistor Pay attention so as not to lose the clip 6 Lift and remove the electrical box Step Procedure Points ...

Page 174: ...e Procedure Warning Be sure to 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 ...

Page 175: ... C ARK X S C SiBE04 401 166 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 ...

Page 176: ...ower supplies before disassembling 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 ...

Page 177: ...ARK X S C SiBE04 401 168 Removal Procedure 4 Pull the sound blanket inner out Since the piping ports on the sound blanket are torn easily remove the blanket carefully 5 Pull the sound blanket bottom out Step Procedure Points ...

Page 178: ...more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the peripheries Remove the four way valve and the sheets of putty so as not to burn them 1 Remove the terminal cover Be careful so as not to burn the compressor terminals or the name plate Make a note 2 Loosen the screw of the four way valve coil ...

Page 179: ...pipe with a tube cutter 4 Heat up the brazed part and withdraw the piping with pliers 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 ...

Page 180: ...o as not to burn 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 disconnec...

Page 181: ...Outdoor Unit RK X S C ARK X S C SiBE04 401 172 Removal Procedure Step Procedure Points 3 Heat up the brazed part of the suction side and disconnect 4 Lift the compressor up and remove it ...

Page 182: ...after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the PCB You can remove the PCB when you disconnect the read wires on the terminal board without removing the electrical box PbF Pb free brazing is adopted 1 Feature of the PCB 2 Loosen the screw on the terminal board 3 Release the earth terminal ...

Page 183: ...Outdoor Unit RK X S C ARK X S C SiBE04 401 174 Removal Procedure 4 Loosen the 4 screws 5 Undo the 3 hooks on the upper side 6 Lift and pull out the PCB Step Procedure Points ...

Page 184: ...SiBE04 401 Outdoor Unit RK X S C ARK X S C Removal Procedure 175 7 Feature of the PCB S70 fan motor S80 four way valve S90 thermistor outdoor air heat exchanger discharge pipe Step Procedure Points ...

Page 185: ...wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 The stop valve cover can be removed when the fixing screw is removed As hooks are provided slide the cover downward to remove The forced cooling operation in the pumping down mode can be carried out by pushing the ON OFF button on the indoor unit for 5 seconds R4026 ...

Page 186: ...he right side and the 2 screws on the front panel 3 Remove the 3 screws on the left side 4 Remove the fixing screw in the rear of the top panel Once lift the top panel and then remove it forward The left side panel and the bell mouth can be removed all at once When restoring the top panel move it horizontally and get it down for the easy work Step Procedure Points ...

Page 187: ... 401 178 Removal Procedure 5 The front panel and the left side panel can be separated when the fixing screw is removed Sectional view at the front Step Procedure Points Top panel Left side panel The edge of the top panel gets into this groove R4105 ...

Page 188: ...e to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 The bell mouth is attached to the front plate with 2 screws and 4 hooks 2 Remove the 2 screws and undo the 4 hooks to release the bell mouth Slide the bell mouth in the arrow direction to disengage the hook B ...

Page 189: ...ter turning off all power supplies before disassembling work Step Procedure Points 1 Remove the drip proof plate The drip proof plate has 5 hooks Be sure to restore the drip proof plate and to avoid losing or damaging it 1 Undo the 5 hooks and remove the drip proof plate 2 Remove the PCB 1 2 Disconnect the earth terminal Remove the insulation sheet R4027 R4028 R4029 ...

Page 190: ...SiBE04 401 Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 181 3 Disconnect the fan motor connector S70 4 Disconnect thefour way valve connector S80 Step Procedure Points R4030 R4031 R4032 ...

Page 191: ...BE04 401 182 Removal Procedure 5 Disconnect the electronic expansion valve connector S20 6 Disconnect the thermistor connector S90 outdoor air heat exchanger discharge pipe 7 Disconnect the relay harness Step Procedure Points R4033 R4034 R4035 ...

Page 192: ...SiBE04 401 Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 183 8 Disconnect the 2 reactor harnesses 9 Disconnect the 4 wire harnesses Step Procedure Points R4036 R4037 R4038 ...

Page 193: ...RK X H C R Y N C SiBE04 401 184 Removal Procedure 10 Remove the 5 screws fixing the PCB 11 Undo the 4 hooks and the PCB can be disengaged The PCB has 4 hooks 12 Control PCB outdoor unit Step Procedure Points R4039 R4040 R4041 ...

Page 194: ...Y N C Removal Procedure 185 3 Remove the electrical box 1 Release the lead wire of the fan motor from the ditch 2 Remove the 2 screws fixing the electrical box 3 Remove the screw of the terminal board cover Step Procedure Points R4042 R4043 R4044 ...

Page 195: ...Outdoor Unit RK X H C ARK X H C R Y N C SiBE04 401 186 Removal Procedure 4 Remove the terminal board cover 5 Lift and remove the electrical box Step Procedure Points R4045 R4046 ...

Page 196: ...or more after turning off all power supplies before disassembling work Step Procedure Points Remove the external panels and the drip proof plate protecting the electrical parts Be sure to restore the drip proof plate and to avoid losing or damaging it 1 Remove the 2 screws of the fan motor assembly 2 Release the 2 hooks of the fan motor stand R4047 R4048 R4049 ...

Page 197: ...otor assembly 4 The propeller fan can be removed when the washer faced nut M8 is removed When restoring match the mark of the propeller fan with the D cut of the motor shaft The fan should be restored so that the mark z will be at upper part of the fan motor 5 Release the lead wire from the hooks R4050 R4051 R4052 ...

Page 198: ...SiBE04 401 Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 189 Step Procedure Points 6 Remove the 2 screws for removing the fan motor 7 Remove the fan motor R4053 R4054 ...

Page 199: ...r more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the right side panel 1 2 Remove the 3 screws for removing the right side panel Lift the right side panel to disengage the hooks Insert the 3 hooks for the restoration 2 Remove the partition plate 1 Remove the 2 screws fixing the partition plate R4055 R4056 R4057 ...

Page 200: ... Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 191 2 Pull the partition plate upward to remove 3 When restoring the partition plate fit the hook into the bottom frame Step Procedure Points R4058 R4059 ...

Page 201: ...Outdoor Unit RK X H C ARK X H C R Y N C SiBE04 401 192 Removal Procedure 3 Remove the reactor 1 The reactor can be released by removing the screw Step Procedure Points R4060 R4061 ...

Page 202: ... disassembling work Step Procedure Points 1 Remove the sound insulation pad Since the slit prepared for the piping connection on the sound insulation pad is torn easily remove the pad carefully When restoring the sound insulation pad should pass the internal side of the piping 1 Untie the string fixing the sound insulation pad to the compressor 2 Pull out the sound insulation pad for the body R406...

Page 203: ... the slit prepared for the piping on the sound insulation pad is torn easily remove the pad carefully 4 Pull out the under pad of the top sound insulation 5 Pull out the inner sound insulation pad When restoring the sound insulation pad should pass the internal side of the piping Step Procedure Points R4064 R4065 R4066 ...

Page 204: ...SiBE04 401 Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 195 6 Pull out the bottom sound insulation pad Step Procedure Points R4067 ...

Page 205: ... cover and the lead wires of the compressor so as not to be burnt out by a gas brazing machine 2 Release the heat exchanger thermistor The thermistor for the heat exchanger is fixed by a clamp material at one portion Be sure to fix the thermistor back on the original position when restoring Warning Ventilate when the refrigerant leaks during the work If the refrigerant is exposed to the fire it wi...

Page 206: ...SiBE04 401 Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 197 4 Loosen the screw and remove the four way valve coil Step Procedure Points R4071 R4072 ...

Page 207: ...event the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat For the sake of this wrap the four way valve with wet cloth and make up water so that the cloth will not be dried and avoid excessive heating It keeps below 120 C Be careful so as not to break pipes by pressing the pipes excessively by pliers when withdrawing the piping 5 Provide a pr...

Page 208: ...e cutter in order to make it easy to remove NOTE Don t use a metal saw for cutting pipes by all means because the chips come into the circuit Cautions at the restoration Wrap the motor valve with wet cloth and make up water so that the cloth will not be dried and avoid excessive heating Caution Be careful about four way valve pipes and so on which were heated up by a gas brazing machine so as not ...

Page 209: ...the parts around the compressor Be careful so as not to burn the compressor terminals or the name plate 1 Remove the terminal cover and the lead wires of the compressor so as not to be burnt out by a gas brazing machine 2 Remove the compressor 1 The mounting nut for the compressor is only one piece Remove the four way valve and the electronic expansion valve also so as not to be burnt out 2 Remove...

Page 210: ... the work If the refrigerant is exposed to the fire it will cause toxic gas Caution Be careful about pipes and so on which were heated up by a gas brazing machine so as not to get burnt on your hands Pay attention so that the fins of the heat exchanger will not be burnt Be sure to apply nitrogen s replacement when heating up the brazing part 3 Remove the brazing part on the discharge side of the c...

Page 211: ...Outdoor Unit RK X H C ARK X H C R Y N C SiBE04 401 202 Removal Procedure ...

Page 212: ...SiBE04 401 Others 203 Part 8 Part 8 Part 8 Part 8 Others Others Others Others 1 Others 204 1 1 Test Run from the Remote Controller 204 1 2 Jumper Settings 205 ...

Page 213: ...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...

Page 214: ...e the drip proof plate 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 Time...

Page 215: ...Others SiBE04 401 206 Others ...

Page 216: ...01 Appendix 207 Part 9 Part 9 Part 9 Part 9 Appendix Appendix Appendix Appendix 1 Piping Diagrams 208 1 1 Indoor Units 208 1 2 Outdoor Units 209 2 Wiring Diagrams 213 2 1 Indoor Units 213 2 2 Outdoor Units 214 ...

Page 217: ...S 20 25 35 CVMB 9 8 ATK X S 20 25 35 CVMB 9 FTN20 25 35CVMB9 FTYN20 25 35CVMB9 FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 7 9CuT CROSS FLOW FAN REFRIGERANT FLOW FAN MOTOR ON HEAT EXCH THERMISTOR M INDOOR UNIT HEATING COOLING 7 0CuT 6 4CuT 9 5CuT HEAT EXCHANGER 6 4CuT 6 4CuT C 4D033698B ...

Page 218: ...R OPERATED MUFFLER FILTER MUFFLER WITH 9 5CuT 6 4CuT VALVE LIQUID STOP VALVE GUS STOP FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT REFRIGERANT FLOW COOLING 3D043690 9 5CuT 9 5CuT 7 0CuT 7 0CuT THERMISTOR DISCHARGE PIPE OUTDOOR UNIT MUFFLER PROPELLER FAN HEAT EXCHANGER 7 9CuT 7 9CuT M VALVE FOUR WAY NORMALLY OFF COMPRESSOR 9 5CuT 4 8CuT 4 8CuT HEAT EXCHANER THERMISTOR 9 5CuT ACCUMLATOR MUFFLER FILTER OU...

Page 219: ...R 6 4CuT MUFFLER VALVE MOTOR OPERATED 9 5CuT MUFFLER 6 4CuT 6 4CuT FILTER WITH VALVE LIQUID STOP VALVE GUS STOP FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 3D042770A MUFFLER 7 9CuT THERMISTOR DISCHARGE PIPE 7 9CuT 7 9CuT OUTDOOR UNIT 7 9CuT PROPELLER FAN HEAT EXCHANGER M COMPRESSOR 7 9CuT HEAT EXCHANGER THERMISTOR 9 5CuT ACCUMLATOR OUTDOOR TEMPERATURE THERMISTOR 6 4CuT 9 5CuT MUFFLER FILTER WITH REFRI...

Page 220: ... FILTER MUFFLER WITH 9 5CuT 6 4CuT VALVE LIQUID STOP VALVE GUS STOP FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT REFRIGERANT FLOW COOLING HEATING 3D043688 9 5CuT 9 5CuT 7 0CuT 7 0CuT THERMISTOR DISCHARGE PIPE OUTDOOR UNIT MUFFLER PROPELLER FAN HEAT EXCHANGER 7 9CuT 7 9CuT M COMPRESSOR VALVE FOUR WAY ON HEATING 9 5CuT 4 8CuT 4 8CuT HEAT EXCHANER THERMISTOR 9 5CuT ACCUMLATOR MUFFLER FILTER OUTDOOR TEMPAR...

Page 221: ...T VALVE MOTOR OPERATED MUFFLER 9 5CuT 6 4CuT 6 4CuT FILTER LIQUID RECEIVER WITH VALVE LIQUID STOP VALVE GUS STOP FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 3D042768A 9 5CuT THERMISTOR DISCHARGE PIPE 7 9CuT 7 9CuT OUTDOOR UNIT MUFFLER PROPELLER FAN HEAT EXCHANGER 7 9CuT M COMPRESSOR VALVE FOUR WAY ON HEATING 9 5CuT 7 9CuT HEAT EXCHANGER THERMISTOR 9 5CuT ACCUMLATOR OUTDOOR TEMPERATURE THERMISTOR 6 4Cu...

Page 222: ...OARD PILOT LAMP WHT RED BLK YLW X1M 2 3 1 NOTE THAT OPERATION WILL THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK RESTART AUTOMATICALLY IF ON AGAIN CAUTION FIELD WIRING 2 3 1 C 3D033599C outdoor LED1 PCB2 H1P RECEIVER SIGNAL CONTROLLER LED2 H2P S1W REMOTE WIRELESS LED3 H3P R1T t S27 S26 S32 R2T t S21 PCB1 CENTRALIZED CONTROL FU FUSE C70 RUNNING CAPACITOR TERMINAL FOR PROTECTIVE EARTH S6 M M1S S...

Page 223: ...G 1 Y1R V1 PROTECTIVE EARTH HR2 3 OUTDOOR DB1 IC11 PCB2 R1T 1 CONDENSER BLK t BLK S90 HC3 R2T BLK DB2 t BLK DISCHARGE R3T BLK 6 t BLK S70 C75 C74 1 HC4 WHT 2 ORG 1 3 M BRN 4 M1F BLU C94 3 15A 7 FU2 RED C95 2 Q1L S40 BLK GRY 1 S30 3D042576C W W 5 BLU M1C IPM1 V V 3 YLW U 1 U N 2 Z1C RED NOTE N L 1 REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS FIELD WIRING indoor L LIVE PCB PRINTED CIRCUIT BOARD...

Page 224: ...A1 SURGE ARRESTER MRM10 MRM20 MAGNETIC RELAY R1T R2T R3T THERMISTOR S20 S70 S80 S90 CONNECTOR V2 V3 SA1 L1 outdoor S70 Z2C PCB M1F 1 BLK MRL 1 3 M WHT C80 6 3 15A RED MRCW FU1 3 Y1R V1 BLU V1 V2 V3 VARISTOR Y1E ELECTRONIC EXPANSION VALVE COIL Y1R REVERSING SOLENOIDE VALVE COIL IPM1 INTELLIGENT POWER MODULE IC11 TRIAC Z1C Z2C Z3C FERRITE CORE BLU 1 MRM10 MRM20 S80 OUTDOOR L1R Z3C HR1 PROTECTIVE EAR...

Page 225: ...Wiring Diagrams SiBE04 401 216 Appendix ...

Page 226: ...r protection function 48 connectors 24 26 28 connectors discharge pipe thermistor 182 electronic expansion valve 182 fan motor 142 157 181 four way valve 163 181 outdoor air thermistor 182 outdoor heat exchanger thermistor 182 swing motor 142 control PCB indoor unit 25 147 control PCB outdoor unit 27 28 173 184 cover service cover 137 stop valve cover 156 176 terminal board cover 185 terminal cove...

Page 227: ...all IC check 131 HC3 26 HC4 26 heat exchanger 148 heat exchanger thermistor 42 43 100 114 142 164 196 heat exchanger thermistor connector 182 heating peak cut control 50 high pressure control 97 high pressure control in cooling 109 HL3 26 HN3 26 HOME LEAVE operation 39 75 horizontal blade 140 hot start function 41 I indoor unit PCB abnormality 96 input current control 49 input over current detecti...

Page 228: ...4 reactor 165 192 reactor harnesses 163 183 remote controller 92 right side panel 161 190 right side plate 152 room temperature thermistor 100 RTH1 24 S S1 24 142 S10 26 S11 26 S20 26 28 182 S21 24 S26 24 S27 24 S30 26 S32 24 S35 24 S36 24 S40 26 S6 24 142 S7 24 142 S70 26 28 157 181 S80 26 28 163 181 S90 26 28 182 safety precautions 61 self diagnosis digital display 41 sensor malfunction detectio...

Page 229: ...SiBE04 401 iv Index V V1 24 26 28 V2 26 28 V3 26 28 varistor 24 26 28 vertical blade 141 voltage detection function 56 W wide angle louvres 32 wiring diagrams 213 ...

Page 230: ...ressure control in cooling 109 HOME LEAVE operation 39 I indoor unit PCB abnormality 96 input current control 49 input over current detection 105 installation condition check 127 insufficient gas 121 insufficient gas control 55 INTELLIGENT EYE 37 INTELLIGENT EYE sensor PCB 25 inverter features 31 inverter powerful operation 40 inverter units refrigerant system check 129 J jumper settings 205 M mod...

Page 231: ...tor or related abnormality outdoor unit 113 thermistor resistance check 126 trial operation from remote controller 204 turning speed pulse input on the outdoor unit PCB check 130 W wiring diagrams ARK X S 20 25 35 CVMB 214 ARKH20 25 35CVMB9 214 ARXH20 25 35CVMB9 215 ATK X S 20 25 35 CVMB 9 213 FTK X S 20 25 35 CVMB 9 8 213 FTN20 25 35CVMB9 213 FTYN20 25 35CVMB9 213 RK X S 20 25 35 CVMB 214 RKH20 2...

Page 232: ...23 Japan Tokyo office Shinjuku Sumitomo Bldg 6 1 Nishi Shinjuku 2 chome Shinjuku ku Tokyo 163 0235 Japan Zandvoordestraat 300 B 8400 Oostende Belgium z For further improvement specifications or designs are subject to change without prior notice Printed in Singapore 03 2004 AK COS ...