Daikin RX09RMVJU9, Service Manual

Page 1: ... Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type FTXR T Series Service Manual SiUS041829E ...

Page 2: ...MVJU9 20 2 2 RX18RMVJU9 21 Part 4 Functions and Control 22 1 Main Functions 23 1 1 Temperature Control 23 1 2 Frequency Principle 23 1 3 Airflow Direction Control 25 1 4 Fan Speed Control for Indoor Unit 26 1 5 Program Dry Operation 27 1 6 Automatic Cooling Heating Changeover 28 1 7 Thermostat Control 29 1 8 NIGHT SET Mode 30 1 9 ECONO Operation 31 1 10 2 Area INTELLIGENT EYE Operation 32 1 11 POW...

Page 3: ...ut Control 73 4 4 Indoor Fan Motor DC Motor or Related Abnormality 74 4 5 Thermistor or Related Abnormality 77 4 6 Front Panel Open Close Fault 78 4 7 Low voltage Detection or Over voltage Detection 79 4 8 Signal Transmission Error Between Indoor Unit and Outdoor Unit 81 4 9 Unspecified Voltage Between Indoor Unit and Outdoor Unit 83 4 10 Outdoor Unit PCB Abnormality 84 4 11 OL Activation Compress...

Page 4: ...rge Pressure Check 119 5 11 Outdoor Fan System Check 119 5 12 Main Circuit Short Check 120 5 13 Power Module Check 122 Part 7 Trial Operation and Field Settings 124 1 Pump Down Operation 125 2 Forced Cooling Operation 126 3 Trial Operation 127 4 Field Settings 129 4 1 Temperature Display Switch 129 4 2 When 2 Units are Installed in 1 Room 129 4 3 Jumper and Switch Settings 130 4 4 Facility Setting...

Page 5: ...US041829E Introduction 1 1 Safety Cautions 2 1 1 Warnings and Cautions Regarding Safety of Workers 2 1 2 Warnings and Cautions Regarding Safety of Users 4 2 Icons Used 7 3 Revision History 8 Introduction ...

Page 6: ...truction is shown in the illustration or near the symbol 1 1 Warnings and Cautions Regarding Safety of Workers This manual is for the person in charge of maintenance and inspection Warning Do not store equipment in a room with fire sources e g naked flames gas appliances electric heaters Be sure to disconnect the power cable from the socket before disassembling equipment for repair Working on equi...

Page 7: ...ant The use of materials for R 22 refrigerant models may cause a serious accident such as a damage of refrigerant cycle or equipment failure Do not mix air or gas other than the specified refrigerant R 32 R 410A R 22 in the refrigerant system If air enters the refrigerant system an excessively high pressure results causing equipment damage and injury Caution Do not repair electrical components wit...

Page 8: ...the same power outlet with other electrical appliances since it may cause an electrical shock excessive heat generation or fire Be sure to use an exclusive power circuit for the equipment and follow the local technical standards related to the electrical equipment the internal wiring regulations and the instruction manual for installation when conducting electrical work Insufficient power circuit ...

Page 9: ...k to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet securely If the plug is dusty or has a loose connection it may cause an electrical shock or fire When replacing the coin battery in the remote controller be sure to dispose of the old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor immediately Cau...

Page 10: ...ance is 1 M or higher Faulty insulation may cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage may cause water to enter the room and wet the furniture and floor Do not tilt the unit when removing it The water inside the unit may spill and wet the furniture and floor Caution ...

Page 11: ...ution is used when there is danger that the reader through incorrect manipulation may damage equipment lose data get an unexpected result or have to restart part of a procedure Note Note Note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Reference Reference Reference guides the reader to other places in this binder or in this ...

Page 12: ...Revision History SiUS041829E 8 Introduction 3 Revision History Month Year Version Revised contents 01 2019 SiUS041829E First edition ...

Page 13: ...SiUS041829E Part 1 General Information 9 1 Applicable Models 10 1 1 Heat Pump 10 2 Functions 11 Part 1 General Information ...

Page 14: ...Models SiUS041829E 10 Part 1 General Information 1 Applicable Models 1 1 Heat Pump Indoor Unit Outdoor Unit FTXR09TVJUW FTXR09TVJUS FTXR12TVJUW FTXR12TVJUS FTXR18TVJUW FTXR18TVJUS RX09RMVJU9 RX12RMVJU9 RX18RMVJU9 ...

Page 15: ...t Eye auto energy saving 2 area Intelligent Eye comfort ECONO mode Inverter POWERFUL operation Indoor unit quiet operation OUTDOOR UNIT QUIET operation Indoor unit ON OFF switch Multi colored indicator lamp Multi colored lamp brightness setting Signal reception indicator Auto restart after power failure Health and Cleanliness Titanium apatite deodorizing filter Mold proof air filter Wipe clean fla...

Page 16: ...eover R C temperature display factory setting F Remote control adaptor normal open pulse contact Option Remote control adaptor normal open contact Option DIII NET compatible Option Wireless LAN connection Option Wired remote controller Option Available Not available Category Functions FTXR Series ...

Page 17: ...SiUS041829E Part 2 Specifications 13 1 Specifications 14 Part 2 Specifications ...

Page 18: ... 16 36 16 Sound Pressure Level H M L SL dB A 38 32 25 19 41 34 28 19 38 32 25 19 41 34 28 19 Outdoor Unit RX09RMVJU9 RX09RMVJU9 Casing Color Ivory White Ivory White Compressor Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Model 1YC23AUXD 1YC23AUXD Refrigerant Oil Type FVC50K FVC50K Charge oz L 12 68 0 375 12 68 0 375 Refrigerant Type R 410A R 410A Charge Lbs kg 2 09 0 95 2 09 ...

Page 19: ... 16 Sound Pressure Level H M L SL dB A 45 34 26 20 45 37 29 20 45 34 26 20 45 37 29 20 Outdoor Unit RX12RMVJU9 RX12RMVJU9 Casing Color Ivory White Ivory White Compressor Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Model 1YC23AUXD 1YC23AUXD Motor Output W Refrigerant Oil Type FVC50K FVC50K Charge oz L 12 68 0 375 12 68 0 375 Refrigerant Type R 410A R 410A Charge Lbs kg 2 09 0...

Page 20: ... Pressure Level H M L SL dB A 46 40 35 30 47 41 35 30 46 40 35 30 47 41 35 30 Outdoor Unit RX18RMVJU9 RX18RMVJU9 Casing Color Ivory White Ivory White Compressor Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Model 2YC36PXD 2YC36PXD Motor Output W Refrigerant Oil Type FVC50K FVC50K Charge oz L 21 98 0 650 21 98 0 650 Refrigerant Type R 410A R 410A Charge Lbs kg 2 49 1 13 2 49 1 ...

Page 21: ... Part 3 Printed Circuit Board Connector Wiring Diagram 17 1 Indoor Unit 18 1 1 FTXR09 12 18TVJUW S 18 2 Outdoor Unit 20 2 1 RX09 12RMVJU9 20 2 2 RX18RMVJU9 21 Part 3 Printed Circuit Board Connector Wiring Diagram ...

Page 22: ... swing motors 5 S42 Connector for reduction motor front panel mechanism and limit switch 6 S46 Connector for display signal receiver PCB A2P 7 S200 Connector for DC fan motor 8 H1 H2 H3 Connector for terminal strip indoor outdoor transmission 9 FG Connector for terminal strip frame ground 10 JB Jumper for fan speed setting when compressor stops for thermostat OFF Refer to page 130 for details 11 J...

Page 23: ...f them INTELLIGENT EYE Sensor PCB A3P 1 S51 Connector for control PCB A1P 2 S52 Connector for room temperature thermistor 3 S1W Indoor unit ON OFF switch Forced cooling operation ON OFF switch Refer to page 126 for details of forced cooling operation 4 H1P LED for operation multi color 5 H2P LED for INTELLIGENT EYE green 6 JA Address setting jumper Refer to page 129 for details S52 S51 S1W JA H2P ...

Page 24: ...40 Connector for overload protector 4 S71 Connector for DC fan motor 5 S80 Connector for four way valve coil 6 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 7 HL1 HN1 S Connector for terminal block 8 E1 E2 Terminal for ground wire 9 HR1 HR2 Connector for reactor 10 FU1 FU2 Fuse 3 15 A 250 V 11 FU3 Fuse 20 A 250 V 12 J6 Jumper for facility setting Refer to ...

Page 25: ...rload protector 3 S70 Connector for DC fan motor 4 S80 Connector for four way valve coil 5 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 6 HL1 HN1 S Connector for terminal block 7 E1 E2 Terminal for ground 8 U V W Connector for compressor 9 FU1 FU2 Fuse 3 15 A 250 V 10 FU3 Fuse 30 A 250 V 11 J6 Jumper for facility setting Refer to page 131 for details 12 L...

Page 26: ...ration 34 1 12 Multi Monitor Lamp TIMER Lamp 35 1 13 Clock Setting 36 1 14 WEEKLY TIMER Operation 37 1 15 Other Functions 43 2 Thermistor Functions 44 3 Control Specification 45 3 1 Mode Hierarchy 45 3 2 Frequency Control 46 3 3 Controls at Mode Changing Start up 48 3 4 Discharge Pipe Temperature Control 50 3 5 Input Current Control 51 3 6 Freeze up Protection Control 52 3 7 Heating Peak cut Contr...

Page 27: ...oom temperature thermistor 1 2 Frequency Principle Control Parameters The frequency of the compressor is controlled by the following 2 parameters The load condition of the operating indoor unit The difference between the room thermistor temperature and the target temperature The target frequency is adapted by additional parameters in the following cases Frequency restrictions Initial settings Forc...

Page 28: ...ment is integrated to keep the room temperature constant 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 functions regulate the minimum and maximum frequency Low frequency Four way valve operation compensation Refer to page 49 High frequency Compressor protection f...

Page 29: ...ertical and horizontal swing motions enables uniform air conditioning of the entire room When the horizontal swing and vertical swing are both set to automatic operation the airflow becomes 3 D airflow The horizontal and vertical swing motions are alternated and the airflow direction changes in the order shown in the following diagram 1 The vertical blades louvers move from the right to the left 2...

Page 30: ...The upper limit is at M tap in 30 minutes from the operation start Heating In heating operation the fan speed is regulated according to the indoor heat exchanger temperature and the difference between the room thermistor temperature and the target temperature The fan stops during defrost operation COMFORT AIRFLOW Operation The fan speed is controlled automatically within the following steps Coolin...

Page 31: ...e unit operates in an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Thermostat turns on also when the room temperature is in the zone B for 10 minutes Room thermistor temperature at start up Target temperature X Thermostat OFF point Y Thermostat ON point Z 24 C or more 75 2 F or more Room thermistor temperature at start up X 2 5 C X 4 5 F X 0 5 ...

Page 32: ...es the target temperature Tt Ts 18 30 C 64 4 86 F 2 The target temperature Tt is calculated as Tt Ts C where C is the correction value C 0 C 0 F 3 Thermostat ON OFF point and operation mode switching point are as follows 1 Heating Cooling switching point Tr Tt 3 0 C 5 4 F 2 Cooling Heating switching point Tr Tt 2 5 C 4 5 F 3 Thermostat ON OFF point is the same as the ON OFF point of cooling or hea...

Page 33: ...stem 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 10 minutes Heating 10 seconds Cooling Heating Refer to Temperature Control on page 23 for details Zone B Zone B Zone A Zone A OFF OFF ON ON Zone C Zone C Room thermistor temperature target temperature 1 0 C 1 8...

Page 34: ...target temperature slightly in the case of cooling or lowers the target temperature slightly in the 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 R23917 Target temperature 0 5 C 0 9 F temperature shift Operation stops at the set hour 0 5 C 0 9 F 1 hour TIMER operatio...

Page 35: ...button on the wireless remote controller Details When this function is activated the maximum capacity also decreases The remote controller can send the ECONO command when the unit is in cooling heating dry or automatic operation This function can only be set when the unit is running Pressing ON OFF button on the remote controller cancels the function This function and POWERFUL operation cannot be ...

Page 36: ...ion sensor detects 10 times or more of the wave output in one second in total and the High signal continues for 3 sec the microcomputer judges humans are in the room as the human detection signal is ON 2 area INTELLIGENT EYE motion sensor divides the area into 2 and detects presence of humans in each area Image of 2 area INTELLIGENT EYE 1 sec Sampling 20 msec High Low ON OFF High Low R24035 Condit...

Page 37: ...oth areas A and B Shift the airflow direction to area B left side 2 Human detection signal ON in area A Shift the airflow direction to area B left side 3 Human detection signal ON in area B Shift the airflow direction to area A right side 4 Human detection signal OFF in both areas A and B No change When the human detection signal is OFF for 20 minutes in both areas A and B the unit starts energy s...

Page 38: ... cooling POWERFUL operation cannot be used together with ECONO COMFORT AIRFLOW or OUTDOOR UNIT QUIET operation Operation mode Fan speed Target temperature COOL H tap A rpm 18 C 64 4 F DRY Dry rotating speed A rpm Lowered by 2 5 C 4 5 F HEAT H tap A rpm 31 C 87 8 F FAN H tap A rpm AUTO Same as cooling heating in POWERFUL operation The target temperature is kept unchanged R24589 Target temp Fan A rp...

Page 39: ...s can be monitored even in automatic operation in accordance with the actual operation mode The lamp color changes according to the operation AUTO Red Blue DRY Green COOL Blue HEAT Red FAN White TIMER Orange Brightness Setting Each time Brightness button on the remote controller is pressed the brightness of the multi monitor lamp changes to high low or off Multi monitor lamp TIMER lamp R19925 ...

Page 40: ...button to set the clock to the current day of the week 3 Press Clock button blinks 4 Press Select or Select button to set the clock to the present time Holding down Select or Select button rapidly increases or decreases the time display 5 Press Clock button to set the clock Point the remote controller at the indoor unit when pressing the button blinks and clock setting is completed 0 00 Select but...

Page 41: ...for the weekend Make timer settings for programs Tuesday to Friday Saturday Sunday Program 1 Program 2 Program 3 Program 4 Use the copy mode to make settings for Tuesday to Friday because these settings are the same as thoseforMonday Program 1 Program 2 Program 3 Program 4 No timer settings Make timer settings for programs Program 1 Program 2 Program 3 Program 4 Up to 4 reservations per day and 28...

Page 42: ... 1 to 4 settings can be made per day Pressing changes the reservation number and the day of the week 3 Press The day of the week and reservation number will be set and blink 4 Press to select the desired mode Pressing changes the or setting in sequence ON TIMER OFF TIMER blank No Setting Pressing puts the sequence in reverse 5 Press 2 Press to select the desired day of the week and reservation num...

Page 43: ...re from STEP 4 is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp periodically lights orange The multi monitor lamp will not light orange if all the reservation settings are deleted A reservation made once can be easily copied and the same settings used for another day of the week Refer to Copy mode Notes on WEEKLY TIMER operation Do not forget to set the clock on the r...

Page 44: ... The whole reservation of the selected day of the week will be copied Be sure to direct the remote controller toward the indoor unit and check for a receiving tone and blinking of the multi monitor lamp The multi monitor lamp blinks twice The reservation will be copied to the selected day of the week The whole reservation of the selected day of the week will be copied To continue copying the setti...

Page 45: ...ing mode Proceed to Setting mode STEP 4 is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp periodically lights orange The multi monitor lamp will not light orange if all the reservation settings are deleted disappears from the LCD The TIMER lamp goes off To reactivate the WEEKLY TIMER operation press again If a reservation deactivated with is activated once again the la...

Page 46: ... to select the day of the week and the reservation number to be deleted and or blink Pressing changes the ON OFF TIMER mode in sequence Selecting blank will cancel any reservation you may have This function can be used for deleting reservations for each day of the week It can be used while confirming or setting reservations Be sure to direct the remote controller toward the indoor unit and check f...

Page 47: ... unit Press ON OFF switch once to start operation Press once again to stop it ON OFF switch is useful when the remote controller is missing or the battery has run out The operation mode refers to the following table Forced cooling operation Forced cooling operation can be started by pressing ON OFF switch for 5 9 seconds while the unit is not operating Refer to page 126 for details Forced cooling ...

Page 48: ...mistor The outdoor temperature thermistor detects the outdoor air temperature and is used for refrigerant shortage detection input current control outdoor fan control liquid compression protection function and so on 4 Indoor Heat Exchanger Thermistor The indoor heat exchanger thermistor is used for controlling the target discharge pipe temperature The system sets the target discharge pipe temperat...

Page 49: ...stor test mode for installation and servicing Details Unless specified otherwise dry operation command is regarded as cooling operation Air conditioner control mode Forced operation mode Forced cooling operation for pump down operation Power transistor test mode Normal operation mode Fan Cooling includes drying Heating Heating Defrosting Stop indoor unit OFF Preheating control Discharging from cap...

Page 50: ...ower limits of the following functions Four way valve operation compensation draft prevention pressure difference upkeep 4 Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency Initial Frequency When starting the compressor the frequency is initialized according to the D value of the indoor unit D signal Indoor frequency command The difference betw...

Page 51: ...s 4 Upper and lower limit of frequency by PI control The frequency upper and lower limits are set according to the command of the indoor unit When the indoor or outdoor unit quiet operation command comes from the indoor unit the upper limit frequency is lower than the usual setting Temperature difference D signal Temperature difference D signal Temperature difference D signal Temperature differenc...

Page 52: ...in temperature 85 C 185 F OFF condition Discharge pipe temperature 2 C 35 6 F Radiation fin temperature 90 C 194 F Control B ON condition Discharge pipe temperature 10 C 50 0 F Radiation fin temperature 85 C 185 F OFF condition Discharge pipe temperature 12 C 53 6 F Radiation fin temperature 90 C 194 F 3 3 2 Four Way Valve Switching Outline The four way valve coil is energized not energized depend...

Page 53: ...alve switching The lower limit of frequency keeps A Hz for B seconds for any of the conditions above When the outdoor temperature is above C in heating the frequency decreases depending on the outdoor temperature 3 3 4 3 Minute Standby Turning on the compressor is prohibited for 3 minutes after turning off The function is not used when defrosting 3 3 5 Compressor Protection Function When turning t...

Page 54: ...rising further Details Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Dropping zone The upper limit of frequency decreases Keep zone The upper limit of frequency is kept Up zone The upper limit of frequency increases Reset zone The upper limit of frequency is canceled 09 12 class 18 class C F C F A 110 230 0 110 230 0 B 103 217 4 103 217 4 C 98 208 4 101 5 2...

Page 55: ...one for 2 5 seconds the compressor is stopped Dropping zone The upper limit of the compressor frequency is defined as operation frequency 2 Hz After this the output frequency is lowered 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 dropping and stop value according to the outdo...

Page 56: ... pressure The operating frequency limitation is judged with the indoor heat exchanger temperature Reset zone Up zone Keep zone Dropping zone Stop zone 13 C 55 4 F 6 5 C 44 F 5 5 C 41 9 F 0 C 32 F 6 C 43 F Reference Indoor heat exchanger temperature R2T Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Dropping zone The upper limit of frequency decreases Keep zo...

Page 57: ...utdoor fan is controlled as well as normal operation 5 Fan speed control during forced operation The outdoor fan is controlled as well as normal operation during forced operation 6 Fan speed control during POWERFUL operation The rotation speed of the outdoor fan is increased during POWERFUL operation 7 Fan speed control during indoor outdoor unit quiet operation The rotation speed of the outdoor f...

Page 58: ...on the duration of the previous defrost control of accumulated time have passed since the start of the operation or ending the previous defrosting Conditions for Canceling Defrost The judgment is made with the outdoor heat exchanger temperature B 09 12 class 18 class A minute 20 25 44 B C 2 20 6 12 F 35 6 68 0 42 8 53 6 C Hz 64 48 D Hz 64 70 E seconds 40 60 F seconds 60 60 G seconds 120 630 120 46...

Page 59: ...ischarge pipe thermistor is disconnected Feedback Control Target discharge pipe temperature control Details The followings are the examples of electronic expansion valve control which function in each operation mode R4003560 Available Not available Control Status Starting operation control Control when the frequency changes Target discharge pipe temperature control Discharge pipe thermistor discon...

Page 60: ... defrosting 3 11 4 Starting Operation Control The electronic expansion valve opening is controlled when the operation starts thus preventing superheating or liquid compression 3 11 5 Control when the Frequency Changes When the target discharge pipe temperature control is active if the target frequency changes to a specified value in a certain time period the target discharge pipe temperature contr...

Page 61: ...essor runs for 60 minutes without any error the error counter is reset Details Determining thermistor disconnection When the starting control finishes the detection timer for disconnection of the discharge pipe thermistor A seconds starts When the timer is over the following adjustment is made 1 When the operation mode is cooling When the following condition is fulfilled the discharge pipe thermis...

Page 62: ...charge pipe temperature The time depends on the opening of the electronic expansion valve 3 12 Malfunctions 3 12 1 Sensor Malfunction Detection Sensor malfunction can be detected in the following thermistor 1 Outdoor heat exchanger thermistor 2 Discharge pipe thermistor 3 Radiation fin thermistor 4 Outdoor temperature thermistor 3 12 2 Detection of Overcurrent and Overload Outline In order to prot...

Page 63: ...SiUS041829E Part 5 Remote Controller 59 1 Applicable Remote Controller 60 2 ARC466A36 61 Part 5 Remote Controller ...

Page 64: ...applicable model for details You can download operation manuals from Daikin Business Portal Daikin Business Portal Document Search Item Category Installation Operation Manual URL https global1d daikin com business_portal login Series Model Name Remote Controller Reference Page FTXR T FTXR09TVJUW S ARC466A36 61 FTXR12TVJUW S FTXR18TVJUW S ...

Page 65: ...If there is anything to block signals between the unit and the remote controller such as a curtain the unit will not operate The maximum distance for communication is about 19 11 16 ft 6 m Make sure that there are no obstacles within 19 11 16 inch 50 cm under the signal receiver Such obstacles if any may have an adverse influence on the reception performance of the receiver and the reception dista...

Page 66: ...UNIT QUIET operation is not available in FAN and DRY operation OUTDOOR UNIT QUIET operation and ECONO operation cannot be used at the same time with POWERFUL operation Priority is given to the function you pressed last Econo 4 Quiet button Blank No setting Combination Comfort Sensor button COMFORT AIRFLOW Operation 2 INTELLIGENT EYE Operation 3 INTELLIGENT EYE COMFORT AIRFLOW Every time you press ...

Page 67: ...3 4 10 Outdoor Unit PCB Abnormality 84 4 11 OL Activation Compressor Overload 85 4 12 Compressor Lock 88 4 13 DC Fan Lock 90 4 14 Input Overcurrent Detection 91 4 15 Four Way Valve Abnormality 93 4 16 Discharge Pipe Temperature Control 95 4 17 High Pressure Control in Cooling 96 4 18 System Shutdown due to Temperature Abnormality in Compressor 98 4 19 Compressor System Sensor Abnormality 99 4 20 P...

Page 68: ...t System Check 115 5 7 Inverter Analyzer Check 116 5 8 Rotation Pulse Check on the Outdoor Unit PCB 117 5 9 Installation Condition Check 118 5 10 Discharge Pressure Check 119 5 11 Outdoor Fan System Check 119 5 12 Main Circuit Short Check 120 5 13 Power Module Check 122 ...

Page 69: ...ion lamp OFF Check the outdoor temperature Heating cooling operations are not available when the outdoor temperature is out of the operation limit Check the reference page for the operation limit 139 Diagnose with remote controller indication 70 The unit operates but does not cool or does not heat Check for wiring and piping errors in the connection between the indoor unit and outdoor unit Check f...

Page 70: ...sion error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Service Monitor The indoor unit has a green LED LED A on the control PCB When the microcomputer works in order the LED blinks Refer to page 18 for the location of LED 2 2 Outdoor Unit The outdoor unit has one green LED LED A on the PCB When the microcomputer works...

Page 71: ...orresponding codes 2 To return to the normal mode hold Timer Cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 Not all the error codes are displayed When you cannot find the error code try method 2 Refer to page 68 No Code No Code No Code No Code 1 00 11 H6 21 C5 31 U2 2 A5 12 H0 22 J3 32 EA 3 E7 13 A6 23 J6 33 AH 4 F3...

Page 72: ...Press Mode button to enter the service check mode The left side number blinks 4 Press Temp or Temp button and change the number until you hear the two consecutive beeps or the long beep 5 Diagnose by the sound Beep The left side number does not correspond with the error code Two consecutive beeps The left side number corresponds with the error code but the right side number does not R24046 R11821 ...

Page 73: ...e sound Beep The left side number does not correspond with the error code Two consecutive beeps The left side number corresponds with the error code but the right side number does not Long beep Both the left side and right side numbers correspond with the error code 9 Determine the error code The numbers indicated when you hear the long beep are the error code Refer to page 70 10 Press Mode button...

Page 74: ...m temperature thermistor or related abnormality 77 Outdoor Unit E1 Outdoor unit PCB abnormality 84 E5 OL activation compressor overload 85 E6 Compressor lock 88 E7 DC fan lock 90 E8 Input overcurrent detection 91 EA Four way valve abnormality 93 F3 Discharge pipe temperature control 95 F6 High pressure control in cooling 96 F8 System shutdown due to compressor internal temperature abnormality 98 H...

Page 75: ...of Error Detection The system checks if the circuit works properly within the microcomputer of the indoor unit Error Decision Conditions The system cannot set the internal settings Supposed Causes Wrong models interconnected Defective indoor unit PCB Disconnection of connector Reduction of power supply voltage ...

Page 76: ...bination of the indoor and outdoor unit matched YES NO NO YES NO NO YES R23407 Caution To secure the connection disconnect the connectors once and then reconnect YES NO YES NO YES NO YES Match the compatible models Correct the power supply Replace the indoor unit PCB control PCB Completed Completed Correct the power supply Replace the indoor unit PCB control PCB Completed Be sure to turn off the p...

Page 77: ...k cut control During heating operation the indoor heat exchanger temperature is above 62 5 C 144 5 F Supposed Causes Short circuited air Clogged air filter of the indoor unit Dust accumulation on the indoor heat exchanger Defective indoor heat exchanger thermistor Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 112 NO NO NO Check No 01 Check the indoor heat exchanger thermistor YE...

Page 78: ...normal fan motor operation Error Decision Conditions The detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed Supposed Causes Remarkable decrease in power supply voltage Layer short inside the fan motor winding Breaking of wire inside the fan motor Breaking of the fan motor lead wires Defective capacitor of...

Page 79: ...ce the indoor fan motor Replace the indoor unit PCB control PCB Replace the indoor unit PCB control PCB Does the fan rotate smoothly Does the fan rotate Motor power supply voltage 310 340 VDC Turn off the power and rotate the fan by hand Turn on the power and start operation Check No 02 Check the output of the fan motor connector R22444 YES NO YES NO YES NO Replace the indoor fan motor Replace the...

Page 80: ...Troubleshooting SiUS041829E 76 Part 6 Service Diagnosis Note Reference The rotation pulse is the feedback signal from the indoor fan motor Check No 02 Refer to P 113 ...

Page 81: ...nnection of connector Defective thermistor s Defective indoor unit PCB Troubleshooting C4 Indoor heat exchanger thermistor C9 Room temperature thermistor Check No 01 Refer to P 112 When replacing the defective thermistor s replace the thermistor as ASSY YES R21870 NO Check No 01 Check the thermistor resistance value YES NO Caution Correct the connection Replace the defective thermistor s Replace t...

Page 82: ...nitialization finishes Operate the unit by the indoor unit ON OFF switch YES YES YES YES NO NO NO NO Replace the harness and reduction motor Replace the assembly of the front panel mechanism Check the movement of the right and left separately by hand Replace the assembly of the front panel mechanism It is supposed such as deformation of the panel or stuffed dust Find out the cause Replace the limi...

Page 83: ...g on the model The compressor stops if the error occurs and restarts automatically after 3 minute standby Over voltage detection An over voltage signal is fed from the over voltage detection circuit to the microcomputer over 458 500 V depending on the model The compressor stops if the error occurs and restarts automatically after 3 minute standby Supposed Causes Power supply voltage out of specifi...

Page 84: ...S YES YES YES Reconnect the harness Check the power supply voltage Check the connection of the compressor harness Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Disturbance factors Noise Power supply distortion Turn on the power System restarted Repeat a few times Loose or disconnected NO NO Replace the outdoor fan motor and the outdoor unit P...

Page 85: ... normal Error Decision Conditions The data sent from the outdoor unit cannot be received normally or the content of the data is abnormal Supposed Causes Power supply voltage out of specification Reduction of power supply voltage Wiring error Breaking of the connection wires between the indoor and outdoor units wire No 3 Defective outdoor unit PCB Short circuit inside the fan motor winding Defectiv...

Page 86: ... wires between the indoor unit and outdoor unit Is LED A blinking Properly insulated Is there any disturbance Is there any wiring error Check the indoor unit outdoor unit connection wires Check the LED A on the outdoor unit PCB Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Before you check the LED A cancel the standby electricity saving ...

Page 87: ...nterconnected Wrong wiring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R20435 Caution NO YES YES NO Match the compatible models OK Correct the connection Check the code numbers 2P012345 for example of the indoor and outdoor unit PCB with the Parts List If not matched change for the correct PCB Are the co...

Page 88: ...omentary drop of voltage Momentary power failure Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Continuously ON or OFF Blink YES R21201 NO Replace the outdoor unit PCB main PCB Ground the system Zero cross signal abnormality Replace the outdoor unit PCB main PCB Check if the outdoor unit is grounded Is LED A blinki...

Page 89: ...t down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Disconnection of discharge pipe thermistor Defective discharge pipe thermistor Disconnection of connector S40 Disconnection of 2 terminals of OL Q1L Defective OL Q1L Broken OL harness Defective electronic expansion valve or coil Defective four way valve or coil Defective outdoor unit PCB Refrigerant ...

Page 90: ...eplace the electronic expansion valve or the coil Refer to the refrigerant line check procedure Replace the outdoor unit PCB main PCB Replace the four way valve or the coil Replace the outdoor unit PCB main PCB Discharge pipe thermistor disconnected Check No 01 Check the discharge pipe thermistor Check No 13 Check the four way valve Check No 14 Check the refrigerant line Check No 12 Check the elec...

Page 91: ...SiUS041829E Troubleshooting Part 6 Service Diagnosis 87 Reference Note Check No 14 Refer to P 115 When replacing the defective thermistor s replace the thermistor as ASSY ...

Page 92: ...ck is detected by the current waveform generated when applying high frequency voltage to the motor Error Decision Conditions If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Closed stop valve Compressor locked Disconnection of compressor harness ...

Page 93: ...art the system Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Correct the power supply or replace the outdoor unit PCB main PCB Open the stop valve Inverter analyzer RSUK0917C Replace the compressor Replace the compressor Check the electronic expansion valve coil Go to Check No 12 Any LED off Stop valve closed Emergency stop without compressor...

Page 94: ... fan motor Foreign matter stuck in the fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 16 Refer to P 117 R20416 Caution YES YES NO YES NO NO YES NO Turn on the power Rotate the fan Check No 16 Check the rotation pulse input on the outdoor unit PCB main PCB Turn off the power and reconnect the connector Remove the foreign matters Replace the outdoor fan motor Replace the...

Page 95: ...with the compressor running Error Decision Conditions The current exceeds about 12 0 12 5 A depending on the model for 2 5 seconds with the compressor running The upper limit of the current decreases when the outdoor temperature exceeds a certain level Supposed Causes Outdoor temperature is out of operation range Defective compressor Defective power module Defective outdoor unit PCB Short circuit ...

Page 96: ...r the wires have been disconnected and reconnected for part replacement check the R21863 NO YES YES NO Start operation and measure the input current Check No 18 Check the discharge pressure Check No 17 Check the installation condition Check No 15 Check with the inverter analyzer Turn off the power and disconnect the harnesses U V and W Turn off the power and reconnect the harnesses Turn on the pow...

Page 97: ...ng condition continues over 10 minutes after operating for 5 minutes Cooling Dry A B 5 C A B 9 F Heating B A 5 C B A 9 F A Room thermistor temperature B Indoor heat exchanger temperature If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Disconnection of four way valve coil Defective four way valve coil or harnes...

Page 98: ... check procedure Replace the four way valve defective or dust clogged Reconnect the thermistor s Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged R20405 Refrigerant shortage Water mixed Stop valve Four way valve coil disconnected loose Harness disconnected Any thermistor disconnected Check No 01 Check the thermistors Check No 14 Che...

Page 99: ...ctive 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 01 Refer to P 112 Check No 12 Refer to P 114 Check No 14 Refer to P 115 When replacing the defective thermistor s replace the thermistor as ASSY A B C F C F 09 12 class 110 230 88 190 4 18 class 110 230 95 203 R20...

Page 100: ...by the outdoor heat exchanger thermistor exceeds the limit Error Decision Conditions The temperature sensed by the outdoor heat exchanger thermistor rises above 57 5 60 C 135 5 140 F depending on the model Supposed Causes Installation space not large enough Dirty outdoor heat exchanger Defective outdoor fan motor Defective stop valve Defective electronic expansion valve or coil Defective outdoor h...

Page 101: ...alve Replace the outdoor heat exchanger thermistor Replace the outdoor unit PCB main PCB Replace the electronic expansion valve or the coil Replace the outdoor unit PCB main PCB Change the installation location or direction Clean the outdoor heat exchanger Check the installation space NG OK OK NG NG OK OK OK NG NG Check No 19 Check the outdoor fan Check No 18 Check the discharge pressure Check No ...

Page 102: ...o air intrusion Defective discharge pipe thermistor Troubleshooting Check No 01 Refer to P 112 When replacing the defective thermistor s replace the thermistor as ASSY YES R23655 NO OK NG Caution Replace the outdoor unit Replace both the discharge pipe thermistor and the outdoor unit PCB main PCB Replace the outdoor unit Abnormal deformation of piping in the outdoor unit Check No 01 Check the disc...

Page 103: ...ltage before compressor start up is below 50 V Supposed Causes Broken or disconnected harness Defective outdoor unit PCB Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged NO R24613 YES Turn off the power Then turn on the power to restart the system YES NO Replace the harness Replace the outdoor unit PCB main PCB Is th...

Page 104: ...rough the position detection circuit Error Decision Conditions If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Power supply voltage out of specification Disconnection of the compressor harness Defective compressor Defective outdoor unit PCB Start up failure caused by the closed stop valve Input voltage outside...

Page 105: ...rn 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 main PCB Correct the power supply or replace the outdoor unit PCB main PCB Replace the compressor Reconnect the electrical components or compressor harnesses as specified Replace the outdoor ...

Page 106: ...Troubleshooting SiUS041829E 102 Part 6 Service Diagnosis Reference Reference Reference R6000565 Check No 15 Refer to P 116 Check No 18 Refer to P 119 Check No 20 Refer to P 120 ...

Page 107: ...e compressor running frequency and the input current Error Decision Conditions 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 unit PCB Troubleshooting Replace the outdoor unit PCB main PCB Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may...

Page 108: ...r 0 04 V or less with the power on J3 error is judged if the discharge pipe temperature is lower than the heat exchanger temperature Supposed Causes Disconnection of the connector for the thermistor Defective thermistor s 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 Defect...

Page 109: ...changer temperature Replace the defective thermistor s of the 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 main PCB Error displayed again on remote controller Indoor heat ex...

Page 110: ...utdoor unit PCB Troubleshooting Check No 17 Refer to P 118 Check No 19 Refer to P 119 A B C C F C F C F 09 12 class 82 179 6 65 149 70 158 18 class 90 194 64 147 2 81 177 8 Caution WARNING To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above C and stops when the radiation fin temperature drops below B R22998 YES NO YES NG NO OK NO YES Turn off the...

Page 111: ...ssor on is above A The error is cleared when the radiation fin temperature drops below B 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 Silicone grease not applied properly on the...

Page 112: ...g or disconnecting connectors or parts may be damaged R23953 NO NG OK NO YES Check the radiation fin temperature NO YES YES Above A Check No 19 Check the outdoor fan Error displayed again Has the PCB been replaced Check if silicone grease is applied properly on the radiation fin If not apply the silicone grease Replace the outdoor unit PCB main PCB Replace the outdoor fan motor Correct the connect...

Page 113: ...ng A rotation 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 the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Poor installation condition Closed stop valve Defective power module Wrong internal wiring Abno...

Page 114: ...age Monitor the power supply voltage discharge and suction pressures and other factors for a long term Possible causes Momentary drop of power supply voltage Compressor overload Short circuit Check the installation condition Check with the inverter analyzer Check the power module Not a malfunction Keep observing Check the connectors and other components Fully open the stop valve Correct the power ...

Page 115: ...iUS041829E Troubleshooting Part 6 Service Diagnosis 111 Reference Reference Reference Reference Check No 15 Refer to P 116 Check No 17 Refer to P 118 Check No 18 Refer to P 119 Check No 22 Refer to P 122 ...

Page 116: ...sistance between the pins using multimeter To check the thermistor soldered on a PCB disconnect the PCB from other PCB parts and measure the resistance between the both ends of soldered thermistor R6000517 Multimeter Resistance range Thermistor ASSY Soldered thermistor Multimeter Thermistor temperature Resistance kΩ C F R 25 C 77 F 20 kΩ B 3950 K 20 4 197 8 15 5 148 2 10 14 112 1 5 23 85 60 0 32 6...

Page 117: ...input pins 4 1 5 3 Power Supply Waveform Check Check No 11 Measure the power supply waveform between No 1 and No 2 on the terminal strip and check the waveform disturbance Check if the power supply waveform is a sine wave Fig 1 Check if there is waveform disturbance near the zero cross sections circled in Fig 2 7 6 5 4 3 2 1 S200 Motor power supply voltage 310 340 VDC Unused Unused GND Motor contr...

Page 118: ...oes not generate a latching sound in step 2 disconnect the connector and check the continuity using a multimeter 4 Check the continuity between the pins 5 1 5 2 5 3 5 4 between the pins 6 1 6 2 6 3 and 6 4 for the 6P connector models If there is no continuity between the pins the EV coil is faulty 5 If the continuity is confirmed in step 3 the outdoor unit PCB main PCB is faulty Harness 5P 5P Conn...

Page 119: ...valve coil Cooling Dry Defrost Not energized Heating energized Replace the outdoor unit PCB main PCB Replace the four way valve coil Replace the four way valve Four way valve coil resistance at 1000 2000 Ω S80 voltage at 208 230 VAC with compressor on Fig 1 R14674 Fig 1 Compressor ON Voltage at S80 208 230 VAC Time Refrigerant system check Check for refrigerant leakage See the service diagnosis on...

Page 120: ...c capacitor drops to 10 VDC or below before carrying out the service work Reference If the terminals of the compressor are not FASTON terminals difficult to remove the wire on the terminals it is possible to connect wires available on site to the outdoor unit from output side of PCB Do not connect them to the compressor at the same time otherwise it may result in incorrect detection Step 3 Activat...

Page 121: ...nals may be burned due to loosening 5 8 Rotation Pulse Check on the Outdoor Unit PCB Check No 16 Make sure that the voltage is within 320 VDC 1 Set operation off and power off Disconnect the connector S70 or S71 2 Check that the voltage between the pins 4 7 is 320 VDC 3 Check that the control voltage between the pins 4 3 is 15 VDC 4 Check that the rotation command voltage between the pins 4 2 is 0...

Page 122: ...stacles or winds blowing in the opposite direction R19394 NG YES YES NO Is the discharged air short circuited NO NO YES Is the outdoor heat exchanger very dirty Change the installation location or direction Change the installation location or direction Clean the outdoor heat exchanger Change the installation location or direction Check the outdoor temperature The outdoor temperature should be with...

Page 123: ... connection pipe deformed Is the stop valve open High Replace the compressor Open the stop valve Replace the pipe installed at the site Clean the dirty air filter or indoor outdoor heat exchanger Replace the compressor Discharge pressure check R21195 YES NO NO YES Outdoor fan system is functioning Check the outdoor fan system Reconnect the connector Is the outdoor fan running Fan motor lead wire c...

Page 124: ...before checking Measure the resistance between the pins of the DB1 referring to the table below If the resistance is or less than 1 k short circuit occurs on the main circuit 09 12 class Positive terminal of digital multimeter 2 3 4 2 3 1 Negative terminal of digital multimeter 4 2 3 1 2 3 Resistance is OK several k several M Resistance is NG 0 or R20698 1 2 3 4 Multimeter ...

Page 125: ...SiUS041829E Check Part 6 Service Diagnosis 121 18 class R25105 1 2 3 4 Multimeter ...

Page 126: ...on on the connector Follow the procedure below to measure resistance between the terminals of the power module and the terminals of the compressor with a multimeter Evaluate the measurement results referring to the following table 09 12 class Positive terminal of digital multimeter Power module UVW Power module UVW Negative terminal of digital multimeter UVW Power module UVW Power module Resistanc...

Page 127: ...SiUS041829E Check Part 6 Service Diagnosis 123 18 class R20704 W V U DC_P1 DC_N1 ...

Page 128: ... 3 Trial Operation 127 4 Field Settings 129 4 1 Temperature Display Switch 129 4 2 When 2 Units are Installed in 1 Room 129 4 3 Jumper and Switch Settings 130 4 4 Facility Setting cooling at low outdoor temperature 131 5 Silicone Grease on Power Transistor Diode Bridge 132 Part 7 Trial Operation and Field Settings ...

Page 129: ...the valve caps from the liquid stop valve and the gas stop valve 2 Carry out forced cooling operation 3 After 5 10 minutes close the liquid stop valve with a hexagonal wrench 4 After 2 3 minutes close the gas stop valve and stop the forced cooling operation 5 Attach the valve cap once procedures are complete Refer to page 126 for details of forced cooling operation Gas stop valve Valve cap Close L...

Page 130: ...h Press indoor unit ON OFF switch for at least 5 seconds The operation will start Forced cooling operation will stop automatically after about 15 minutes To stop the operation press indoor unit ON OFF switch R7000226 With the indoor unit s remote controller 1 Press Mode button and select the cooling operation 2 Press On Off button to turn on the system 3 Press Temp buttons and Mode button at the s...

Page 131: ...operating the air conditioner in cooling operation in winter or heating operation in summer set it to the trial operation mode using the following method Procedure ARC466 Series 1 Press On Off button to turn on the system 2 Press the center of Temp button and Mode button at the same time 3 Select T trial operation with Temp or Temp button 4 Press Mode button to start the trial operation 5 Press Mo...

Page 132: ...r unit s air inlet or air outlet Incomplete cooling heating function Stop valves are opened Incomplete cooling heating function Indoor unit properly receives remote controller commands No operation will be displayed when the Mode button is pressed No heating Pipes and wires are connected to the corresponding terminal blocks connection ports for the connected unit No cooling heating Jumper J8 ...

Page 133: ... in 1 room 1 of the 2 indoor units and the corresponding wireless remote controller can be set for different address Both the indoor unit PCB and the wireless remote controller need alteration Indoor Unit PCB 1 Remove the front grille 2 Remove the shield plate of the electrical box 3 Cut the address setting jumper JA on the PCB Replace the PCB if you cut a jumper unintentionally Jumpers are necess...

Page 134: ...onic circuit Improper operation may occur if you cut any of them 4 3 Jumper and Switch Settings For the location of the jumper refer to 18 page R25252 Jumper on indoor unit PCB Function When connected factory setting When cut JB Fan speed setting when compressor stops for thermostat OFF effective only at cooling operation The fan stops Fan speed setting Remote controller setting JC Power failure r...

Page 135: ...p plate of the outdoor unit 09 12 class 3 screws 18 class 6 screws 2 Remove the front plate 09 12 class 4 screws 18 class 8 screws 3 Cut the jumper J6 of the PCB inside For the location of the jumper refer to pages 20 21 If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind provide a windbreak wall Intermittent noises may be produced by the indoor unit due...

Page 136: ...ode bridge Details 1 Wipe off the old silicone grease completely 2 Apply the silicone grease evenly See the illustrations below for examples of application 3 Tighten the screws of the power transistor diode bridge 4 Make sure that the heat radiation parts are firmly contacted to the radiation fin Note Smoke emission may be caused by bad heat radiation when the silicone grease is not appropriately ...

Page 137: ...SiUS041829E Part 8 Appendix 133 1 Piping Diagrams 134 1 1 Indoor Unit 134 1 2 Outdoor Unit 135 2 Wiring Diagrams 136 2 1 Indoor Unit 136 3 Outdoor Unit 137 4 Operation Limit 139 Part 8 Appendix ...

Page 138: ... 8 CuT Heat exchanger thermistor Heat exchanger Cross flow fan Fan motor Field piping 3 8 CuT Field piping 1 4 CuT Refrigerant flow Cooling Heating 4D101008A Indoor unit 1 4 CuT 3 8 CuT Heat exchanger thermistor Heat exchanger Cross flow fan Fan motor Field piping 1 2 CuT Field piping 1 4 CuT Refrigerant flow Cooling Heating 4D101010A ...

Page 139: ...SiUS041829E Piping Diagrams Part 8 Appendix 135 1 2 Outdoor Unit RX09 12RMVJU9 RX18RMVJU9 3D092207C 3D092220C ...

Page 140: ... BLK BLK BLK BLK BLK BLK BLK BLK BLK WHT RED BLU BRN ORG WHT RED GRN YLW GRN YLW RED ORG YLW BLU OUTDOOR INDOOR Field wiring NOTE When the main power is turned off and then back on again operation will resume automatically Wiring diagram FG F1U F2U H1P H2P R1T R2T S25 S200 S1W S1C X1M BZ M1F M1S M3S M1 A1P A3P TRC WRC IES SR H1 H3 MR10 V1 C101 C102 Frame ground Fuse Pilot lamp Thermistor Connector...

Page 141: ...SiUS041829E Outdoor Unit Part 8 Appendix 137 Note s 3 Outdoor Unit RX09 12RMVJU9 PCB1 Main PCB Refer to page 20 for Printed Circuit Board Connector Wiring Diagram 3D112531A ...

Page 142: ...Outdoor Unit SiUS041829E 138 Part 8 Appendix Note s RX18RMVJU9 PCB Main PCB Refer to page 21 for Printed Circuit Board Connector Wiring Diagram 3D105962B ...

Page 143: ...SiUS041829E Operation Limit Part 8 Appendix 139 4 Operation Limit RX09 12 18RMVJU9 3D092209E ...

Page 144: ...ocal legislation z z Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electrical shock fire or explosion z z Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorized ...