Daikin FTXG20LV1BW Page 69 Service Manual Download

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SiBE041401E

Troubleshooting

Service Diagnosis

4. Troubleshooting

4.1

Error Codes and Description

★

: Displayed only when system-down occurs.

Error Codes

Description

Reference

Page

System

Normal

—

★

Refrigerant shortage

Low-voltage detection or over-voltage detection

Signal transmission error (between indoor unit and outdoor unit)

Unspecified voltage (between indoor unit and outdoor unit)

Indoor
Unit

Indoor unit PCB abnormality

Freeze-up protection control / heating peak-cut control

Fan motor (DC motor) or related abnormality

Indoor heat exchanger thermistor or related abnormality

Front panel open / close fault

Room temperature thermistor or related abnormality

Outdoor
Unit

Outdoor unit PCB abnormality

★

OL activation (compressor overload)

★

Compressor lock

★

DC fan lock

Input overcurrent detection

Four way valve abnormality

Discharge pipe temperature control

High pressure control in cooling

Compressor system sensor abnormality

Position sensor abnormality

DC voltage / current sensor abnormality (20/25/35 class only)

Outdoor temperature thermistor or related abnormality

★

Discharge pipe thermistor or related abnormality

Outdoor heat exchanger thermistor or related abnormality

Electrical box temperature rise

Radiation fin temperature rise

★

Output overcurrent detection

Radiation fin thermistor or related abnormality

Summary of Contents for FTXG20LV1BW

Page 1: ...Service Manual Applied Models z Inverter Pair Heat Pump Inverter Pair Wall Mounted Type L Series SiBE041401E...

Page 2: ...ontents Inverter Pair Wall Mounted Type L Series zHeat Pump Indoor Unit FTXG20LV1BW FTXG20LV1BS FTXG25LV1BW FTXG25LV1BS FTXG35LV1BW FTXG35LV1BS FTXG50LV1BW FTXG50LV1BS Outdoor Unit RXG20L2V1B RXG25L2V...

Page 3: ...l for Indoor Unit 20 1 6 Program Dry Operation 21 1 7 Automatic Operation 22 1 8 Thermostat Control 23 1 9 NIGHT SET Mode 24 1 10 ECONO Operation 24 1 11 2 Area INTELLIGENT EYE Operation 25 1 12 Inver...

Page 4: ...Overload 73 4 13 Compressor Lock 75 4 14 DC Fan Lock 76 4 15 Input Overcurrent Detection 77 4 16 Four Way Valve Abnormality 78 4 17 Discharge Pipe Temperature Control 80 4 18 High Pressure Control in...

Page 5: ...ial Operation 106 3 Field Settings 107 3 1 When 2 Units are installed in 1 Room 107 3 2 Model Type Setting 107 3 3 Standby Electricity Saving 108 3 4 Jumper Settings 109 4 Silicon Grease on Power Tran...

Page 6: ...Warning Do not store the equipment in a room with successive fire sources e g naked flame gas appliance electric heater Be sure to disconnect the power cable plug from the plug socket before disassemb...

Page 7: ...in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury Warning Caution Do not repair the electrical components with...

Page 8: ...eat 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...

Page 9: ...onducted securely the equipment may fall and cause injury Check 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 has dust or l...

Page 10: ...thed grounded Improper earth grounding may cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 M or higher Faulty insulation...

Page 11: ...on is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Note Note A Note provides...

Page 12: ...SiBE041401E 1 List of Functions Part 1 List of Functions 1 Functions 2...

Page 13: ...o restart after power failure z Indoor unit quiet operation z Self diagnosis digital led display z NIGHT QUIET mode automatic Wiring error check function OUTDOOR UNIT QUIET operation manual z Anti cor...

Page 14: ...SiBE041401E 3 Specifications Part 2 Specifications 1 Specifications 4...

Page 15: ...w Proof Removable Washable Mildew Proof Running Current Rated A 0 12 0 12 0 12 0 15 0 15 0 15 0 12 0 12 0 12 0 15 0 15 0 15 Power Consumption Rated W 23 23 23 31 31 31 23 23 23 31 31 31 Power Factor R...

Page 16: ...f Removable Washable Mildew Proof Running Current Rated A 0 12 0 12 0 12 0 16 0 16 0 16 0 12 0 12 0 12 0 16 0 16 0 16 Power Consumption Rated W 23 23 23 33 33 33 23 23 23 33 33 33 Power Factor Rated 8...

Page 17: ...Proof Removable Washable Mildew Proof Running Current Rated A 0 16 0 16 0 16 0 21 0 21 0 21 0 16 0 16 0 16 0 21 0 21 0 21 Power Consumption Rated W 33 33 33 42 42 42 33 33 33 42 42 42 Power Factor Rat...

Page 18: ...ovable Washable Mildew Proof Running Current Rated A 0 16 0 16 0 16 0 21 0 21 0 21 0 16 0 16 0 16 0 21 0 21 0 21 Power Consumption Rated W 33 33 33 43 43 43 33 33 33 43 43 43 Power Factor Rated 93 8 8...

Page 19: ...SiBE041401E Printed Circuit Board Connector Wiring Diagram 8 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Indoor Unit 9 2 Outdoor Unit 11 2 1 20 25 35 Class 11 2 2 50 Class 13...

Page 20: ...tor 4 S41 Connector for swing motors 5 S42 Connector for reduction motor front panel mechanism and limit switch 6 S46 Connector for signal receiver display PCB 7 S200 Connector for fan motor 8 H1 H2 H...

Page 21: ...eration may occur if you cut any of them INTELLIGENT EYE Sensor PCB A3P 1 S51 Connector for control PCB 2 S52 Connector for room temperature thermistor 3 S1W Forced cooling operation ON OFF button Ref...

Page 22: ...verload protector 4 S50 Connector for magnetic relay 5 S70 Connector for fan motor 6 S80 Connector for four way valve coil 7 S90 Connector for thermistors outdoor temperature outdoor heat exchanger di...

Page 23: ...for terminal board 3 E1 E2 Terminal for earth wire 4 HL2 HN2 Connector for main PCB 5 HR1 Connector for reactor 6 FU1 Fuse 3 15 A 250 V 7 FU3 Fuse 20 A 250 V 8 V2 V3 Varistor HR1 HL2 3P254234 1 FU1 HN...

Page 24: ...ectronic expansion valve coil 4 S40 Connector for overload protector 5 S50 Connector for magnetic relay 6 S70 Connector for fan motor 7 S80 Connector for four way valve coil 8 S90 Connector for thermi...

Page 25: ...terminal board 3 E1 E2 Terminal for earth wire 4 HL2 HN2 Connector for HL3 HN3 on main PCB 5 HL4 HN4 Connector for S12 on main PCB 6 FU1 Fuse 3 15 A 250 V 7 FU3 Fuse 30 A 250 V 8 V2 V3 Varistor 9 SW1...

Page 26: ...ration 25 1 12 Inverter POWERFUL Operation 27 1 13 Multi Monitor Lamp TIMER Lamp 27 1 14 Clock Setting 28 1 15 WEEKLY TIMER Operation 29 1 16 Other Functions 35 2 Function of Thermistor 36 3 Control S...

Page 27: ...s 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 ada...

Page 28: ...nce 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...

Page 29: ...ate when the flap passes over the fan banned area Closing the flap fully R20133 Fan operation starts at 300 rpm Fully open OFF Start ON Under running control Under operation mode control Under operati...

Page 30: ...ng dry heating and fan 3 D Airflow Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room When the horizontal swing and vertical swing are...

Page 31: ...setting button is set to automatic Cooling The following drawing explains the principle of fan speed control for cooling The upper limit is M tap for 30 minutes from the operation start Heating In hea...

Page 32: ...emperature at start up and the target temperature is divided into two zones Then the unit operates in an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable le...

Page 33: ...emperature Ts determines the target temperature Tt Ts 18 30 C 2 The target temperature Tt is calculated as Tt Ts C where C is the correction value C 0 C 3 Thermostat ON OFF point and operation mode sw...

Page 34: ...fter being in the zone A The system resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed while the temperature difference is i...

Page 35: ...jor bonus when breaker capacity does not allow the use of multiple electrical devices and air conditioners It can be easily activated by pushing the ECONO button on the wireless remote controller Deta...

Page 36: ...r unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total and when the ON signal continues 3 sec it judges human is in the room as the motion signal is...

Page 37: ...and B Shift the airflow direction to area B left side 2 Detection signal ON in area A Shift the airflow direction to area B left side 3 Detection signal ON in area B Shift the airflow direction to are...

Page 38: ...onitor Lamp TIMER Lamp Current operation mode is displayed in color of the lamp of the indoor unit Operating status can be monitored even in automatic operation in accordance with the actual operation...

Page 39: ...he clock can be set by taking the following steps 1 Press the CLOCK button is displayed and MON and blink 2 Press the SELECT or button to set the clock to the current day of the week 3 Press the CLOCK...

Page 40: ...00 27 C 27 C ON OFF OFF ON Program 1 Program 2 Program 3 Program 4 The same timer settings are made for the week from Monday through Friday while different timer settings are made for the weekend Tues...

Page 41: ...IMER OFF TIMER blank 5 Press The day of the week and the reservation number of the current day will be displayed 1 to 4 settings can be made per day 2 Press to select the desired day of the week and r...

Page 42: ...vals To return to the ON OFF TIMER mode setting press Go to step 9 when setting the OFF TIMER The time will be set and the temperature blink The temperature can be set between 10 C and 32 C COOL or AU...

Page 43: ...other day of the week The whole reservation of the selected day of the week will be copied Tuesday to Friday 2 Press to confirm the day of the week to be copied 4 Press to select the destination day o...

Page 44: ...KLY TIMER operation Confirming a reservation The reservation can be confirmed Setting Displays Normal Confirmation 1 Press The day of the week and the reservation number of the current day will be dis...

Page 45: ...nal sequence Selecting blank will cancel any reservation you may have The selected reservation will be deleted If there are still other reservations WEEKLY TIMER operation will be activated This funct...

Page 46: ...FF button once to start operation Press once again to stop it The ON OFF button is useful when the remote controller is missing or the battery has run out The operation mode refers to the following ta...

Page 47: ...ture used in place of the inner temperature of the compressor rises abnormally the operating frequency becomes lower or the operation halts 2 The discharge pipe thermistor is used for detecting discon...

Page 48: ...1 Limiting defrost control time 2 Forced cooling 3 Indoor frequency command Air conditioner control mode Forced operation mode Forced cooling operation for pump down operation Power transistor test mo...

Page 49: ...ndoor heat exchanger volume and airflow rate set by remote controller PI Control 1 P control The D value is calculated in each sampling time 15 20 seconds and the frequency is adjusted according to it...

Page 50: ...four way valve coil switches from ON to OFF when the heating is stopped the OFF delay switch of the four way valve is carried out Detail OFF delay switch of four way valve The four way valve coil is...

Page 51: ...ove a certain level the upper limit of frequency is set to keep the discharge pipe temperature from rising further Detail 20 25 35 class 50 class A Hz 48 55 B Hz 64 70 C Hz 88 85 D seconds 240 120 E s...

Page 52: ...ed 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...

Page 53: ...gh pressure The operating frequency limitation is judged with the indoor heat exchanger temperature A C B C C C 9 5 7 5 5 5 R14718 Reset zone Indoor heat exchanger thermistor temperature Up zone Keep...

Page 54: ...peration 5 Fan speed control during forced cooling operation The outdoor fan is controlled as well as normal operation during forced cooling operation 6 Fan speed control during POWERFUL operation The...

Page 55: ...pressor operates for 6 minutes More than A minutes of accumulated time have passed since the start of the operation or ending the previous defrosting Conditions for Canceling Defrost The judgment is m...

Page 56: ...ischarge pipe thermistor is disconnected Feedback Control Target discharge pipe temperature control Detail The followings are the examples of electronic expansion valve control which function in each...

Page 57: ...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...

Page 58: ...ge pipe temperature 6 C outdoor heat exchanger temperature 2 When the operation mode is heating When the following condition is fulfilled the discharge pipe thermistor disconnection is ascertained Dis...

Page 59: ...onsumption is below the specified value and the frequency is higher than the specified frequency it is regarded as refrigerant shortage The power consumption is low comparing with that in the normal o...

Page 60: ...SiBE041401E 49 Remote Controller Part 5 Remote Controller 1 Remote controller 50...

Page 61: ...on once to start operation Press once again to stop it Temperature adjustment buttons AUTO DRY COOL HEAT FAN 18 30 C Not available 18 32 C 10 30 C Not available Displays the current settings In this i...

Page 62: ...press the Swing button again Press this button and adjust the day and time with the Select button Press this button again to complete TIMER setting R19929 Weekly button Program button Copy button Bac...

Page 63: ...r Lock 75 4 14 DC Fan Lock 76 4 15 Input Overcurrent Detection 77 4 16 Four Way Valve Abnormality 78 4 17 Discharge Pipe Temperature Control 80 4 18 High Pressure Control in Cooling 81 4 19 Compressor...

Page 64: ...mp OFF Check the outdoor temperature Heating operation cannot be used when the outdoor temperature is 24 C or higher and cooling operation cannot be used when the outdoor temperature is below 10 C Dia...

Page 65: ...the thermistor malfunctions 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 Service Mon...

Page 66: ...orresponding codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 Not a...

Page 67: ...same time 5C is displayed on the LCD 2 Select 5C service check with the Temp or Temp button 3 Press the Mode button to enter the service check mode The left side number blinks 4 Press the Temp or Tem...

Page 68: ...or Temp button and change the number until you hear the long beep 8 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number...

Page 69: ...l open close fault 64 C9 Room temperature thermistor or related abnormality 63 Outdoor Unit E1 Outdoor unit PCB abnormality 72 E5 OL activation compressor overload 73 E6 Compressor lock 75 E7 DC fan l...

Page 70: ...ck the connection of connectors See Note Correct the connection OK Check the power supply voltage Start operation Voltage as rated Error repeats Check the power supply voltage Start operation Voltage...

Page 71: ...eating peak cut control During heating operation the indoor heat exchanger temperature is above 65 C Supposed Causes Short circuited air Clogged air filter of the indoor unit Dust accumulation on the...

Page 72: ...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 Supp...

Page 73: ...rn off the power before reconnecting the connector Replace the indoor fan motor Replace the indoor unit PCB Replace the indoor unit PCB Does the fan rotate smoothly Does the fan rotate Motor power sup...

Page 74: ...d Causes Disconnection of connector Thermistor corresponding to the error code is defective Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 93 C4 Indoor heat exchanger thermistor C9 R...

Page 75: ...il the initialization finishes 4 Operate the unit by the indoor unit ON OFF button YES YES YES YES NO NO NO NO Replace the harness and reduction motor Replace the assembly of the front panel mechanism...

Page 76: ...ntinue for 80 seconds Opening of the electronic expansion valve D Discharge pipe temperature E target discharge pipe temperature F Refrigerant shortage detection III 20 25 35 class only When the diffe...

Page 77: ...e pipe flare or replace the union Check the power transistor harness for loosening Correct it as required Also replace the cracked pipe Check the pipes for improper contact and correct them as require...

Page 78: ...age detection The voltage detected by the DC voltage detection circuit is below 150 180 V depending on the model The compressor stops if the error occurs and restarts automatically after 3 minute stan...

Page 79: ...ower supply voltage Check the connection of the compressor harness Disturbance factors Noise Power supply distortion Precaution before turning on the power again Make sure the power has been off for a...

Page 80: ...cked whether it is 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 Reduction of power supply vol...

Page 81: ...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 pow...

Page 82: ...cting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R19506 Caution NO YES YES YES NO NO Check the code numbers 2P012345 f...

Page 83: ...e Momentary 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 NO YES YES R19932...

Page 84: ...wn 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...

Page 85: ...ce the discharge pipe thermistor Replace the electronic expansion valve or the coil Refer to the refrigerant line check procedure Replace the outdoor unit PCB Replace the four way valve or the coil Re...

Page 86: ...her error Supposed Causes Compressor locked Compressor harness disconnected Troubleshooting Check No 15 Refer to P 96 Turn off the power Disconnect the harnesses U V and W R20103 Caution NO YES YES NO...

Page 87: ...Disconnection of the fan motor Foreign matter stuck in the fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 16 Refer to P 97 R15675 Caution YES YES NO YES NO NO YES NO Turn...

Page 88: ...No 18 Refer to P 99 Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged An input overcurrent may result from wrong internal wiring If th...

Page 89: ...over 1 10 minutes depending on the model after operating for 5 10 minutes depending on the model Cooling Dry A B 5 C Heating B A 5 C A Room thermistor temperature B Indoor heat exchanger temperature I...

Page 90: ...logged Reconnect the thermistor s Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged R19543 Refrigerant shortage Water mixed Stop valve...

Page 91: ...erant shortage Defective four way valve Water mixed in refrigerant Defective stop valve Defective outdoor unit PCB Troubleshooting Check No 01 Refer to P 93 Check No 12 Refer to P 94 Check No 14 Refer...

Page 92: ...ermistor Defective outdoor unit PCB Troubleshooting Check No 01 Refer to P 93 Check No 12 Refer to P 94 Check No 17 Refer to P 98 Check No 18 Refer to P 99 Check No 19 Refer to P 99 R15667 Caution Rep...

Page 93: ...oltage value The DC voltage 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 swi...

Page 94: ...the position detection circuit Error Decision Conditions If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes 20 25 35 class or 5 minutes 50 class without a...

Page 95: ...No 20 Check the short circuit of the diode bridge Check No 15 Check with the inverter analyzer Turn off the power Disconnect the harnesses U V and W Turn on the power Check the electrolytic capacitor...

Page 96: ...sed on the 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 oth...

Page 97: ...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 Thermistor corresponding to the...

Page 98: ...mistor s of the following thermistors Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Cooling Outdoor heat exchanger temperature Heating Indoor heat exchange...

Page 99: ...of connector Defective outdoor unit PCB Troubleshooting Check No 17 Refer to P 98 Check No 19 Refer to P 99 A C B C C C 20 25 35 class 98 75 83 50 class 122 64 113 Caution WARNING To cool the electric...

Page 100: ...pressor on is above A C The error is cleared when the radiation fin temperature drops below B C If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without...

Page 101: ...or parts may be damaged R19529 NO NG OK NO YES Check the radiation fin temperature NO YES YES Above A C Check No 19 Check the outdoor fan Error displayed again Has the PCB been replaced Check if silic...

Page 102: ...ning A speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer If the error repeats the system is shut...

Page 103: ...system See if the same error occurs Check the power supply voltage Monitor the power supply voltage discharge and suction pressures and other factors for a long term Possible causes Momentary drop of...

Page 104: ...on a PCB remove the PCB from the control PCB to measure the resistance When the connector of indoor heat exchanger thermistor is soldered on a PCB remove the thermistor and measure the resistance Ther...

Page 105: ...Valve Check Check No 12 Conduct the followings to check the electronic expansion valve EV 1 Check if the EV connector is correctly connected to the PCB 2 Turn the power off and on again and check if...

Page 106: ...l Cooling Dry No continuity Heating Continuity Replace the outdoor unit PCB Replace the four way valve coil Replace the four way valve Four way valve coil resistance at 1000 2000 S80 voltage at 220 24...

Page 107: ...e charged voltage of the built in smoothing electrolytic capacitor drops to 10 VDC or below before carrying out the service work Reference If the terminals of the compressor are not FASTON terminals d...

Page 108: ...t frequency is low the LEDs blink slowly As the output frequency increases the LEDs blink quicker The LEDs look like they are lit 2 On completion of the inverter analyzer diagnosis be sure to re crimp...

Page 109: ...it PCB If NG in step 4 Defective Hall IC Replace the outdoor fan motor If OK in both steps 2 and 4 Replace the outdoor unit PCB 5 9 Installation Condition Check Check No 17 1 2 3 4 5 6 7 320 VDC R1965...

Page 110: ...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 Repla...

Page 111: ...1 referring to the table below If the resistance is or less than 1 kW short circuit occurs on the main circuit 20 25 35 class 50 class Negative terminal of multimeter positive terminal for digital mul...

Page 112: ...e resistance between the or terminal of the diode bridge or the power module and the U V or W terminal of the compressor with a multimeter Evaluate the measurement results referring to the following t...

Page 113: ...SiBE041401E Check Service Diagnosis 102 50 class Diode bridge R19944...

Page 114: ...Servicing 104 1 1 Pump Down Operation 104 1 2 Forced Cooling Operation 104 2 Trial Operation 106 3 Field Settings 107 3 1 When 2 Units are installed in 1 Room 107 3 2 Model Type Setting 107 3 3 Stand...

Page 115: ...tions are met 1 The outdoor unit is not abnormal and not in the 3 minute standby mode 2 The outdoor unit is not operating Start The forced cooling operation starts when any of the following conditions...

Page 116: ...nit 50 class Caution When pressing the button on the outdoor unit do not touch the terminal board It has a high voltage and may cause electric shock R19927 Indoor unit ON OFF button 1 2 3 Push here Sc...

Page 117: ...ture 30 C Trial operation may be disabled in either operation mode depending on the room temperature After trial operation is complete set the temperature to a normal level 26 C 28 C in cooling 20 C 2...

Page 118: ...Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them Wireless Remote Controller Cut the address setting jumper Replace the remote controller if you cut the...

Page 119: ...d for turning ON the function 1 Check that the main power supply is turned OFF Turn OFF if it has not been turned OFF 2 Remove the stop valve cover 3 Disconnect the selective connector for standby ele...

Page 120: ...n Jumper When connected factory setting When cut Fan speed setting when compressor stops for thermostat OFF effective only in cooling operation JB The fan stops Fan speed setting Remote controller set...

Page 121: ...bridge Detail 1 Wipe off the old silicon grease completely 2 Apply the silicon grease evenly See the illustrations below for examples of application 3 Tighten the screws of the power transistor diode...

Page 122: ...SiBE041401E 111 Appendix Part 8 Appendix 1 Piping Diagrams 112 1 1 Indoor Unit 112 1 2 Outdoor Unit 112 2 Wiring Diagrams 114 2 1 Indoor Unit 114 2 2 Outdoor Unit 114...

Page 123: ...OSS FLOW FAN FAN MOTOR REFRIGERANT FLOW HEATING 4D085834 HEAT EXCHANGER OUTDOOR UNIT HEAT EXCHANGER 7 0 CuT 7 0 CuT 9 5 CuT EV 4 8 CuT 6 4 CuT 6 4 CuT 4 8 CuT M 4 0 x ID 2 0 CuT PROPELLER FAN 9 5 CuT...

Page 124: ...NG HEATING 6 4 CuT 4 0 CuT CAPILLARY TUBE 4 6 4 CuT M PROPELLER FAN EV FILTER 12 7 CuT 6 4 CuT 9 5 CuT 12 7 CuT RECEIVER 7 9 CuT 12 7 CuT MUFFLER MUFFLER 6 4 CuT 7 9 CuT 9 5 CuT MUFFLER 7 9 CuT 12 7 C...

Page 125: ...LK 9 9 BLK MR30_B MR30_A E2 MRCW GRN BLU RED YLW S70 S100 S50 S90 S20 S40 PCB1 X11A S80 1 3 3 1 1 2 13 12 1 11 4 7 10 1 6 1 1 6 2 GRN OUTDOOR BLK WHT WHT BLU BRN BRN RED NOTE YLW GRY BLK BLK BLU RED B...

Page 126: ...THERMISTOR SURGE ABSORBER OUTDOOR DISCHARGE CONDENSER VARISTOR TERMINAL STRIP ELECTRONIC EXPANSION VALVE COIL REVERSING SOLENOID VALVE COIL FERRITE CORE PROTECTIVE EARTH EARTH C7 C8 DB1 DB3 FU1 FU2 F...

Page 127: ...Revision History Month Year Version Revised contents 03 2014 SiBE041401E First edition...

Page 128: ...upplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorised parts and accessories or improper installation of parts and accessorie...

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