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SiUS041111

Indoor Unit: 15/18/24 Class

Removal Procedure

151

2. Remove the Titanium

apatite photocatalytic air-
purifying filters.

1

Push up the bottom of
the Titanium apatite
photocatalytic air-
purifying filter to
unfasten the hooks (2
on lower, 3 on upper)
and take the filter out.



The right and left filters are
interchangeable.

Step

Procedure

Points

Hook

Hook

(R2751)

Titanium apatite
photocatalytic
air-purifying filter

(R2752)

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Содержание FTXN09KEVJU

Страница 1: ...Service Manual Inverter Pair Wall Mounted Type K Series SiUS041111 Applied Models Inverter Pair Cooling Only Inverter Pair Heat Pump...

Страница 2: ...Indoor Unit FTXN09KEVJU FTXN12KEVJU FTXN15KVJU FTXN18KVJU FTXN24KVJU Outdoor Unit RKN09KEVJU RKN12KEVJU RKN15KEVJU RKN18KEVJU RKN24KEVJU Heat Pump Indoor Unit FTXN09KEVJU FTXN12KEVJU FTXN15KVJU FTXN1...

Страница 3: ...2 15 18 24 Class 18 Part 4 Function and Control 20 1 Main Functions 21 1 1 Temperature Control 21 1 2 Frequency Principle 21 1 3 Airflow Direction Control 23 1 4 Fan Speed Control for Indoor Unit 24 1...

Страница 4: ...IMER Operation 60 2 8 ON TIMER Operation 61 3 15 18 24 Class 62 3 1 Remote Controller 62 3 2 AUTO DRY COOL HEAT FAN Operation 64 3 3 Adjusting the Airflow Direction and Rate 66 3 4 POWERFUL Operation...

Страница 5: ...2 Fan Motor Connector Output Check 117 5 3 Power Supply Waveforms Check 118 5 4 Electronic Expansion Valve Check 118 5 5 Four Way Valve Performance Check 119 5 6 Inverter Unit Refrigerant System Check...

Страница 6: ...al of Electrical Box 198 4 4 Removal of PCBs 206 4 5 Removal of Sound Blankets 213 4 6 Removal of Electronic Expansion Valve AssemblyASSY 216 4 7 Removal of Four Way Valve 217 4 8 Removal of Compresso...

Страница 7: ...Use only pipes flare nuts tools and other materials designed specifically for R410A refrigerant systems Never use tools or materials designed for R22 refrigerant systems on an R410A refrigerant syste...

Страница 8: ...em replaced Damaged cable and wires may cause an electrical shock or fire Do not use a joined power cable or an extension cord or share the same power outlet with other electrical appliances as it may...

Страница 9: ...SiUS041111 List of Functions 1 Part 1 List of Functions 1 Functions 2...

Страница 10: ...Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed F...

Страница 11: ...after Power Failure 3 D Airflow Self Diagnosis Digital LED Display COMFORT AIRFLOW Operation Wiring Error Check Function Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchang...

Страница 12: ...SiUS041111 4 Specifications Part 2 Specifications 1 Specifications 5 1 1 Cooling Only 5 1 2 Heat Pump 8...

Страница 13: ...Washable Mildew Proof Running Current Rated A 0 20 0 18 0 20 0 18 Power Consumption Rated W 40 40 Power Factor 96 2 96 6 96 2 96 6 Temperature Control Microcomputer Control Microcomputer Control Dime...

Страница 14: ...hable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 17 0 15 0 17 0 15 Power Consumption Rated W 34 34 34 34 Power Factor 96 2 98 6 96 2 98 6 Temperature Control Microcomputer...

Страница 15: ...l Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 17 0 15 Power Consumption Rated W 34 34 Power Factor 96 2 98 6 Temperature Control Microcomputer Control Dimensions H W...

Страница 16: ...wnward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 20 0 18 0 20 0 18 Power Consumption Rated W 40 40 Power Factor 96 2 96 6 96 2 96 6 Temperatu...

Страница 17: ...ir Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 17 0 15 0 18 0 16 0 17 0 15 0 18 0 16 Power Consumption Rated W 34 34 36 36 34 34 36 36 Power Factor...

Страница 18: ...rd Air Filter Removable Washable Mildew Proof Running Current Rated A 0 17 0 15 0 18 0 16 Power Consumption Rated W 34 34 36 36 Power Factor 96 2 98 6 96 2 97 8 Temperature Control Microcomputer Contr...

Страница 19: ...ed Circuit Board Connector Wiring Diagram 11 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Indoor Unit 12 1 1 09 12 Class 12 1 2 15 18 24 Class 14 2 Outdoor Unit 16 2 1 09 12 Class 16 2 2 15...

Страница 20: ...Connector for adaptor PCB option 6 H1 H2 H3 FG Connector for terminal board 7 V1 Varistor 8 JA Address setting jumper Refer to page 225 for detail JB Fan speed setting when compressor stops for thermo...

Страница 21: ...r Unit Printed Circuit Board Connector Wiring Diagram 13 PCB Detail PCB 1 Control PCB PCB 2 Display PCB FU1 H1 H3 V1 H2 FG S200 LED A S32 S26 S6 JA JC JB S403 2P206569 4 S27 SW1 Solder side LED2 LED1...

Страница 22: ...anger thermistor 7 H1 H2 H3 FG Connector for terminal board 8 JA Address setting jumper Refer to page 225 for detail JB Fan speed setting when compressor stops for thermostat OFF JC Power failure reco...

Страница 23: ...g Diagram 15 PCB Detail PCB 1 Control PCB PCB 2 Signal Receiver PCB PCB 3 Buzzer PCB PCB 4 Display PCB LED3 does not function S1 V1 FU1 S6 2P099167 2 JC JB JA LED A S21 H1 S26 S28 H2 H3 FG S32 SW1 S29...

Страница 24: ...r 6 FU1 Fuse 3 15 A 250 V 7 FU3 Fuse 20 A 250 V 8 V2 V3 Varistor 1 S10 Connector for filter PCB 2 S20 Connector for electronic expansion valve coil 3 S40 Connector for overload protector 4 S70 Connect...

Страница 25: ...nit Printed Circuit Board Connector Wiring Diagram 17 PCB Detail PCB 1 Filter PCB PCB 2 Main PCB HR1 S11 HL2 HN2 E1 E2 V2 AC2 AC1 S FU3 3P257381 1 V3 FU1 S70 S10 S90 LED A S40 S20 S80 HL3 HN3 FU2 HR2...

Страница 26: ...3 Fuse 30 A 250 V 8 V2 V3 Varistor 9 SW1 Forced cooling operation ON OFF switch 1 S10 Connector for S11 on filter PCB 2 S12 Connector for HL4 HN4 on filter PCB 3 S20 Connector for electronic expansion...

Страница 27: ...Printed Circuit Board Connector Wiring Diagram 19 PCB Detail PCB 1 Filter PCB PCB 2 Main PCB 3P273862 1 SW1 S11 FU1 FU3 V2 V3 E2 E1 HN2 HL2 HN4 HL4 S HL1 HN1 S80 S10 2P273854 1 S70 S20 S40 S90 FU2 LED...

Страница 28: ...ONO Operation 29 1 10 Inverter POWERFUL Operation 30 1 11 Other Functions 31 2 Function of Thermistor 32 3 Control Specification 33 3 1 Mode Hierarchy 33 3 2 Frequency Control 34 3 3 Controls at Mode...

Страница 29: ...the room depending on the type of the indoor unit or installation condition Practically the temperature control is done by the target temperature appropriately adjusted for the indoor unit and the te...

Страница 30: ...ep 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 Phase Descripti...

Страница 31: ...ic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution Auto Swing The following table explains the auto swing process for cooling dry heating and fan COMFORT...

Страница 32: ...tomatic Cooling The following drawing explains the principle of fan speed control for cooling 09 12 class In automatic fan speed operation upper limit is at M tap in 30 minutes from the operation star...

Страница 33: ...en the room thermistor temperature at start up and the target temperature is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the te...

Страница 34: ...ines 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 mode switching point ar...

Страница 35: ...m resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed while the temperature difference is in the zone B Cooling Dry 10 minute...

Страница 36: ...le sleeping conditions and also conserves electricity Cooling 09 12 class 15 18 24 class Heating R14453 TIMER operation NIGHT SET Mode ON Target temperature 0 5 C 0 9 F temperature shift Operation sto...

Страница 37: ...d from the wireless remote controller by pushing the ECONO button When this function is activated the maximum capacity also decreases The remote controller can send the ECONO command when the unit is...

Страница 38: ...POWERFUL operation in cooling mode 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 32 C 87 8 89 6 F FAN...

Страница 39: ...on Forced cooling operation can be started by pressing the ON OFF button for 5 to 9 seconds while the unit is not operating Refer to page 222 for detail Note When the ON OFF button is pressed for 10 s...

Страница 40: ...mpressor rises abnormally the operating frequency becomes lower or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the discharge pipe thermistor 3 Indoor Hea...

Страница 41: ...tion command is regarded as cooling operation R14428 Air conditioner control mode Forced operation mode Forced cooling operation Power transistor test mode Normal operation mode Fan Cooling includes d...

Страница 42: ...nctions Compressor protection input current discharge pipe temperature freeze up protection 3 Determine lower limit frequency The maximum value is set as an lower limit frequency among the frequency l...

Страница 43: ...requency Up Down by D Signal 1 P control The D value is calculated in each sampling time 20 seconds and the frequency is adjusted according to its difference from the frequency previously calculated 2...

Страница 44: ...scharge pipe temperature 20 C 68 F OFF condition Discharge pipe temperature 22 C 71 6 F Radiation fin temperature 90 C 194 F 15 18 24 class ON Condition When the discharge pipe temperature is below 10...

Страница 45: ...heating after defrosting 5 When starting compressor for the first time after resetting with the power ON 6 When starting compressor after the fault of switching over cooling heating The lower limit of...

Страница 46: ...cification SiUS041111 38 Function and Control 15 18 24 class A Hz 52 B Hz 66 C Hz 78 D Hz Cooling 98 Heating 96 E seconds 120 F seconds 120 G seconds 480 H seconds 60 sec Time R13906 Hz Frequency C D...

Страница 47: ...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...

Страница 48: ...y is defined as operation frequency 2 Hz After this the output frequency is pulled down by 2 Hz every second until it reaches the keep zone Keep zone The present maximum frequency goes on Reset zone L...

Страница 49: ...rmal high pressure Detail R14664 Reset zone Indoor heat exchanger thermistor temperature Up zone Keep zone Dropping zone Stop zone 13 C 55 4 F Reference 7 C 44 6 F 5 C 41 F 3 C 37 4 F 0 C 32 F Zone Co...

Страница 50: ...of the outdoor fan is reduced by the command of the indoor unit quiet operation 7 Fan speed control for POWERFUL operation 15 18 24 class The rotation speed of the outdoor fan is increased while the P...

Страница 51: ...than 28 minutes of accumulated time pass since the start of the operation or ending the previous defrosting 09 12 class More than 15 25 minutes depending on the duration of the previous defrost contr...

Страница 52: ...gment is made with outdoor heat exchanger temperature 6 30 C 42 8 86 F Frequency Compressor Four way valve Fan ON OFF ON OFF ON OFF 0 Hz 76 Hz 8 sec 400 pulse 450 pulse 450 pulse Initial opening PI co...

Страница 53: ...ontrol h function not function Cooling h h h h h h h h h h h h h h h h h h h h h h h h h h h h h Heating R14458 h h h h h h Starting control Control when the frequency changes Target discharge pipe te...

Страница 54: ...g 3 11 4 Starting Operation Control The electronic expansion valve opening is controlled when the operation starts and prevents the superheating or liquid compression 3 11 5 Control when the frequency...

Страница 55: ...exchanger temperature 2 When the operation mode is heating When the following condition is fulfilled the discharge pipe thermistor disconnection is ascertained Discharge pipe temperature 6 C 10 8 F i...

Страница 56: ...l Outline I Detecting by power consumption If the power consumption is below the specified value and the frequency is higher than the specified frequency it is regarded as refrigerant shortage The pow...

Страница 57: ...e Airflow Direction and Rate 55 2 4 COMFORT AIRFLOW Operation 57 2 5 POWERFUL Operation 58 2 6 ECONO Operation 59 2 7 OFF TIMER Operation 60 2 8 ON TIMER Operation 61 3 15 18 24 Class 62 3 1 Remote Co...

Страница 58: ...at well and how to use it efficiently Providing instructions to the user can reduce requests for servicing by 80 However proficient the installation and operating functions of the AC system are the cu...

Страница 59: ...drop the remote controller Do not get it wet The maximum distance for communication is approximately 23ft 7m FAN setting button Selects the airflow rate setting Page14 Page16 POWERFUL button POWERFUL...

Страница 60: ...AT FAN Page11 Page 18 19 COMFORT button COMFORT AIRFLOW operation OFF TIMER button Cancels the timer setting Page 15 Page18 TIMER CANCEL button Page 18 19 ECONO button ECONO operation Page 17 Page 13...

Страница 61: ...he air conditioner The heat pump system heats the room by circulating hot air around all parts of the room After the start of HEAT operation it takes some time before the room gets warmer In HEAT oper...

Страница 62: ...g The outdoor unit consumes 3 4 34btu h 1 10W to have its electric components work even while it is not operating During standby electricity saving mode about 3 4btu h 1W The outdoor unit consumes abo...

Страница 63: ...desired position This function is effective while louver is in auto swing mode Press when the louver has reached the desired position The louver will stop moving is no longer displayed on the LCD To...

Страница 64: ...kept stopped in the downward direction the louver will automatically start operating in approximately an hour in order to prevent dew condensation Note on airflow rate setting At smaller airflow rate...

Страница 65: ...The louver will go down To cancel COMFORT AIRFLOW operation Press again The louver will return to the memory position from before COMFORT AIRFLOW operation is no longer displayed on the LCD COOL opera...

Страница 66: ...or 20 minutes Back to normal operation NOTE Notes on POWERFUL operation When using POWERFUL operation there are some functions which are not available POWERFUL operation cannot be used together with E...

Страница 67: ...ECONO operation The circuit breaker is unlikely to trip even if the air conditioner and other appliances are used at same time This diagram is a representation for illustrative purposes only The maxi...

Страница 68: ...t in the memory The memory is canceled when remote controller batteries are replaced When operating the unit via the ON OFF TIMER the actual length of operation may vary from the time entered by the u...

Страница 69: ...utes Holding down either button changes the setting rapidly 3 Press again and setting time are displayed on the LCD The TIMER lamp lights yellow Display Press and setting time are no longer displayed...

Страница 70: ...e remote controller Do not get it wet The maximum distance for communication is approximately 23ft 7m Selects the airflow rate setting FAN setting button Page14 POWERFUL button POWERFUL operation Page...

Страница 71: ...e operation mode AUTO DRY COOL HEAT FAN MODE selector button Page16 OFF TIMER button TIMER CANCEL button Cancels the timer setting Page16 17 Page16 17 Changes the ON OFF TIMER settings SELECT button C...

Страница 72: ...bination with the air conditioner The heat pump system heats the room by circulating hot air around all parts of the room After the start of HEAT operation it takes some time before the room gets warm...

Страница 73: ...bout every 2 weeks Notes on the operating conditions The air conditioner always consumes a small amount of electricity even while it is not operating If you are not going to use the air conditioner fo...

Страница 74: ...LCD The louvers horizontal blades will begin to swing This function is effective while louvers are in auto swing mode Press when the louvers have reached the desired position The louvers will stop mov...

Страница 75: ...and fins forcibly with hand when they are swinging the mechanism may be broken Be careful when adjusting the fins Inside the air outlet a fan is rotating at a high speed At smaller airflow rates the c...

Страница 76: ...ure setting is lowered by 4 5 F 2 5 C and the airflow rate is slightly increased In FAN operation The airflow rate is fixed to the maximum setting 15 Example POWERFUL Operation POWERFUL operation quic...

Страница 77: ...hanges the time setting rapidly 3 Press again and setting time are displayed on the LCD The TIMER lamp lights yellow Display Press and setting time are no longer displayed on the LCD and day of the we...

Страница 78: ...inutes Holding down either button changes the setting rapidly 3 Press again and setting time are displayed on the LCD The TIMER lamp lights yellow Display Press and setting time are no longer displaye...

Страница 79: ...4 13 Four Way Valve Abnormality 94 4 14 Discharge Pipe Temperature Control 96 4 15 High Pressure Control in Cooling 98 4 16 Compressor System Sensor Abnormality 100 4 17 Position Sensor Abnormality 10...

Страница 80: ...SiUS041111 72 Service Diagnosis 5 11 Outdoor Fan System Check 124 5 12 Main Circuit Short Check 125 5 13 Power Module Check 126...

Страница 81: ...n a signal transmission 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 one green...

Страница 82: ...Check the outdoor temperature Heating operation cannot be used when the outdoor temperature is 24 C 75 2 F or higher and cooling operation cannot be used when the outdoor temperature is below 10 C 50...

Страница 83: ...nding 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 all the...

Страница 84: ...until you hear the beep s 3 Diagnose by the sound beep The left side number does not correspond with the error code beep beep The left side number corresponds with the error code but the right side nu...

Страница 85: ...ght side numbers correspond with the error code Error codes and description Refer to page 78 7 Determine the error code The numbers indicated when you hear the long beep are the error code Error codes...

Страница 86: ...85 C9 Room temperature thermistor or related abnormality 85 Outdoor Unit E1 Outdoor unit PCB abnormality 89 E5 OL activation compressor overload 90 E6 Compressor lock 91 E7 DC fan lock 92 E8 Input ove...

Страница 87: ...on of connector Troubleshooting Note Check the following connector Check the combination of the indoor and outdoor unit OK OK Check the connection of connectors See Note Correct the connection Error r...

Страница 88: ...ating operation the temperature detected by the indoor heat exchanger thermistor is used for the heating peak cut control operation halt outdoor fan stop etc Malfunction Decision Conditions Freeze up...

Страница 89: ...an the air filter Clean the indoor heat exchanger Replace the indoor unit PCB Replace the thermistor Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be...

Страница 90: ...fan motor operation Malfunction 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...

Страница 91: ...er on again Check No 03 Check the motor control voltage Is the motor control voltage 15 VDC generated Check No 03 Check the indoor unit PCB for rotation pulse Is the rotation pulse generated NO YES YE...

Страница 92: ...disconnecting connectors or parts may be damaged R14436 NO YES YES NO YES NO Replace the indoor fan motor Replace the indoor unit PCB Replace the indoor unit PCB Replace the indoor fan motor Replace...

Страница 93: ...pressor operation Supposed Causes Disconnection of connector Defective thermistor Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 116 C4 Indoor heat exchanger thermistor C9 Room tempe...

Страница 94: ...nit in indoor unit outdoor unit signal transmission is checked whether it is normal Malfunction Decision Conditions The data sent from the outdoor unit cannot be received normally or the content of th...

Страница 95: ...ng error Properly insulated Check the LED A on the outdoor unit PCB Is LED A blinking Is there any disturbance YES YES Replace the indoor unit PCB Locate the cause of the disturbance of the power supp...

Страница 96: ...ring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R11707 Caution NO YES YES YES NO NO Check the code numbe...

Страница 97: ...ross signal is not detected Supposed Causes Defective outdoor unit PCB Broken harness between PCBs Noise Momentary fall of voltage Momentary power failure Troubleshooting Caution Be sure to turn off t...

Страница 98: ...stop valve Troubleshooting Check No 01 Refer to P 116 Check No 12 Refer to P 118 Check No 13 Refer to P 119 Check No 14 Refer to P 119 R14438 Caution YES NG NO OK OK NG NG OK NG OK Refrigerant shorta...

Страница 99: ...on NO YES YES NO NO YES Correct the power supply or replace the outdoor unit PCB Inverter checker Part No 1225477 Replace the compressor Replace the compressor Check the electronic expansion valve Rep...

Страница 100: ...es Disconnection of fan motor Foreign matters stuck in the fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 16 Refer to P 122 R14410 Caution YES YES NO YES NO NO YES NO Turn...

Страница 101: ...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 the system is interrupted by an input...

Страница 102: ...unction Decision Conditions A following condition continues over 10 minutes after operating for 5 minutes Cooling Dry room thermistor temp indoor heat exchanger temp 5 C 9 F Heating indoor heat exchan...

Страница 103: ...000 2000 W Check No 13 Check the four way valve switching output Any thermistor disconnected Check No 01 Check the thermistors Check No 14 Check the refrigerant line NG OK NO OK NG OK YES NG Correct i...

Страница 104: ...for about 60 minutes without any other error Supposed Causes Defective discharge pipe thermistor Defective outdoor heat exchanger thermistor or outdoor temperature thermistor Defective electronic exp...

Страница 105: ...check procedure Replace the outdoor unit PCB Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Check No 01 Check the thermistors Check No 12 C...

Страница 106: ...changer thermistor exceeds the limit Malfunction Decision Conditions The temperature sensed by the outdoor heat exchanger thermistor rises above about 60 C 140 F The error is cleared when the temperat...

Страница 107: ...utdoor unit PCB Replace the electronic expansion valve or the coil Replace the outdoor unit PCB Change the installation location or direction Clean the outdoor heat exchanger Check the installation sp...

Страница 108: ...verted to voltage value The DC voltage before compressor start up is below 50 V Supposed Causes Broken or disconnection of harness Defective outdoor unit PCB Troubleshooting Caution Be sure to turn of...

Страница 109: ...tion circuit Malfunction Decision Conditions The compressor fails to start in about 15 seconds after the compressor run command signal is sent If the error repeats the system is shut down Reset condit...

Страница 110: ...lace the outdoor unit PCB Replace the compressor Correct the power supply or replace the outdoor unit PCB Reconnect them as specified Replace the outdoor unit PCB Inverter checker Part No 1225477 NO Y...

Страница 111: ...cy and the input current Malfunction Decision Conditions The compressor running frequency is above 52 Hz The input current is also below 0 1 A If the error repeats the system is shut down Reset condit...

Страница 112: ...th 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...

Страница 113: ...ors Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Cooling Outdoor heat exchanger temperature Heating Indoor heat exchanger temperature Replace the indoor h...

Страница 114: ...ff the radiation fin temperature is above A The error is cleared when the radiation fin temperature drops below B To cool the electrical components the outdoor fan starts when the radiation fin temper...

Страница 115: ...ck the radiation fin temperature Turn off the power and turn it on again WARNING Replace the outdoor unit PCB Replace the fan motor Correct the connectors and fan motor lead wire Replace the outdoor u...

Страница 116: ...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 ot...

Страница 117: ...ove A Check No 17 Check the installation condition Check if the silicon grease applied properly on the radiation fin If not apply it See Note Replace the outdoor unit PCB Replace the fan motor Correct...

Страница 118: ...occurs while the compressor is running A speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer If t...

Страница 119: ...ter checker Part No 1225477 Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Stop valve fully open Error again Check No 15 Check with the inve...

Страница 120: ...tronic expansion valve D Discharge pipe temperature C E target discharge pipe temperature C F C Discharge pipe temperature F E target discharge pipe temperature F G F Refrigerant shortage detection II...

Страница 121: ...nsistor harness for looseness Correct it as required Also replace the cracked pipe Check the pipes for improper contact Correct them as required Also replace the cracked pipe Replace the electronic ex...

Страница 122: ...tage detected by the DC voltage detection circuit is below about 200 V The compressor stops if the error occurs and restarts automatically after 3 minute standby Over voltage detection An over voltage...

Страница 123: ...efore connecting or disconnecting connectors or parts may be damaged NO NO YES NO YES YES Reconnect it Repeat a few times Precaution before turning on the power again Make sure the power has been off...

Страница 124: ...for the PCB and measure Thermistor temperature C F Resistance k Room temperature thermistor for 09 12 class model Other thermistors 20 4 73 4 211 0 15 5 57 0 150 0 10 14 44 7 116 5 5 23 35 3 88 0 0 3...

Страница 125: ...n the pins 12 9 and between 9 6 Motor control voltage check 1 Check the connector for connection 2 Check the motor control voltage is generated between the pins 2 3 Rotation pulse check 1 Check the co...

Страница 126: ...valve EV 1 Check to see if the EV connector is correctly connected to the PCB 2 Turn the power off and on again and check to see if the EV generate latching sound 3 If the EV does not generate latchi...

Страница 127: ...coil from the connector and check the continuity Four way valve coil resistance at 1000 2000 W S80 voltage at 208 230 VAC with compressor on Fig 1 Replace the outdoor unit PCB Replace the four way va...

Страница 128: ...f Step 2 Install the inverter checker instead of a compressor Note Make sure the charged voltage of the built in smoothing electrolytic capacitor drops to 10 VDC or below before carrying out the servi...

Страница 129: ...ation starts Diagnose method Diagnose according to 6 LEDs lighting status 1 When all the LEDs are lit uniformly the compressor is defective Replace the compressor 2 When the LEDs are not lit uniformly...

Страница 130: ...4 Check that the rotation command voltage between the pins 2 4 is 0 15 VDC 5 Keep operation off and power off Connect the connector S70 6 Check whether 2 pulses 0 15 VDC are output at the pins 1 4 wh...

Страница 131: ...opposite direction R14468 NG YES YES YES Is the discharged air short circuited NO NO NO Is the outdoor heat exchanger very dirty Change the installation location or direction Change the installation...

Страница 132: ...sor Open the stop valve Replace the pipe installed at the site Clean the dirty one Replace the compressor High Is the stop valve open Is the connection pipe deformed Not dirty Dirty YES NO NO YES YES...

Страница 133: ...Measure the resistance between the pins of the DB1 as below If the resistance is or less than 1 kW short circuit occurs on the main circuit 09 12 class terminal of the tester in case of digital termin...

Страница 134: ...the connector press the protrusion on the connector Follow the procedure below to measure resistance between the terminals of the DB1 and the terminals of the compressor with a multi tester Evaluate t...

Страница 135: ...3 Removal of Horizontal Blades Vertical Blades 155 2 4 Removal of Electrical Box PCBs Swing Motors 157 2 5 Removal of Indoor Heat Exchanger 162 2 6 Removal of Fan Motor Fan Rotor 165 3 Outdoor Unit 0...

Страница 136: ...onfirm the signal reception When the ON OFF button is kept pressed for 5 seconds the forced cooling operation is performed for about 15 minutes 2 Remove the air filters 1 Open the front panel to the p...

Страница 137: ...the air filter and unfastening the projections from the air filter frame 3 Remove the Titanium apatite photocatalytic air purifying filter from its frame at 5 positions by bending it To prevent the d...

Страница 138: ...aft while bending the horizontal blade slightly The center shaft can be released easily by bending the blade Cautions for reassembling 1 Since the key pattern hook is provided rotate the horizontal bl...

Страница 139: ...SiUS041111 Indoor Unit 09 12 Class Removal Procedure 131 5 Remove the horizontal blade Step Procedure Points R11626...

Страница 140: ...panel over the position where it stops 2 Release the right rotary shaft The rotary shaft on each side can be released easily by sliding each shaft inwards 3 Release the left rotary shaft 4 Remove the...

Страница 141: ...lle has 3 hooks on the upper part Refer to the removal procedure in a reverse way when reassembling 3 Press each hook and also lift the grille up to unfasten the hooks 4 Pull the upper part of the fro...

Страница 142: ...s 1 Disconnect the connecting wires Preparation Remove the front grille according to the Removal of Front Grille 1 Remove the screw of the service cover 2 Pull out the service cover down in the direct...

Страница 143: ...hite 2 power supply red 3 transmission yellow green ground 6 Pull out the indoor heat exchanger thermistor Take care not to lose the clip of thermistor 2 Remove the electrical box 1 Remove the screw a...

Страница 144: ...emove the screw of the electrical box 4 Slide the electrical box to the right first and detach the horizontal blade from the electrical box 5 Pull the electrical box There is a hook on the bottom fram...

Страница 145: ...ooks at the bottom Remove the fan guard Repeat the same procedure to remove the fan guard on the other side 3 Unfasten the hooks at the upper 2 positions A vertical blade assembly has 6 fins It is imp...

Страница 146: ...ure 4 Unfasten the 3 hooks at the shaft mounting part by pressing them with a flat screwdriver 5 Remove the vertical blade assembly Repeat the same procedure to remove the vertical blade assembly on t...

Страница 147: ...ocedure Points 1 Remove the shield plate 2 Preparation Remove the electrical box according to the Removal of Electrical Box Vertical Blades 1 Unfasten the hooks at the upper 2 positions of the shield...

Страница 148: ...wing motor has a hook Press the hook with a flat screwdriver to unfasten it 3 Remove the display PCB 1 Unfasten the hook and release the display PCB assembly 2 Turn over the display PCB assembly and u...

Страница 149: ...he display PCB S27 for control PCB 4 Remove the control PCB 1 Lift the shield plate 1 and unfasten the 2 hooks 2 Slide the shield plate 1 and remove it 3 Release the harnesses from the hooks Step Proc...

Страница 150: ...een with sleeve lower 5 Release the 4 hooks Lift up the upper part of the control PCB and remove it 6 The figure shows the control PCB Refer to page 13 for detail S6 swing motor S26 display PCB S32 in...

Страница 151: ...opened air may be sucked in to generate an over pressure in refrigeration cycle thus resulting in pipe rupture or accidental injury If the drain hose is embedded in the wall disconnect the drain hose...

Страница 152: ...uid piping with 2 wrenches 2 Remove the indoor heat exchanger 1 Remove the indoor unit from the installation plate 2 Unfasten the hook of the piping fixture on the back of the indoor unit Step Procedu...

Страница 153: ...indoor heat exchanger be sure to wear gloves or wrap it with cloth before proceeding to work or you could be injured by the fins 5 Push and unfasten the hook on the right side and lift up the indoor...

Страница 154: ...er turning off all power supplies before disassembling work Step Procedure Points 1 Remove the right side panel Preparation Remove the indoor heat exchanger according to the Removal of Indoor Heat Exc...

Страница 155: ...rotor and the fan motor 1 The fan motor has 3 projections on the right side The fan rotor has a rotating shaft on the left side 2 Remove the fan rotor 3 Press the bearing from outside 4 Remove the be...

Страница 156: ...l out the fan motor from the fan rotor to remove The magnet of the fan motor is united with the fan rotor Be careful not to attract metal waste to the magnet Keep away from the materials that can be a...

Страница 157: ...ed at the left side with pliers and insert the removed drain plug into the right side with a hexagonal wrench 1 8 4 mm 3 Insert the drain hose to the left side and tighten it with the heat insulation...

Страница 158: ...e signal reception When the ON OFF button is kept pressed for 5 seconds the forced cooling operation is performed for about 15 minutes 1 Remove the air filters 1 Open the front panel to the position w...

Страница 159: ...urifying filters 1 Push up the bottom of the Titanium apatite photocatalytic air purifying filter to unfasten the hooks 2 on lower 3 on upper and take the filter out The right and left filters are int...

Страница 160: ...he front panel further than it stops release both the shafts and remove the front panel Slide the front panel from side to side to release each shaft When reassembling the front panel fit the right an...

Страница 161: ...cedure Points 1 Remove the service cover Preparation Remove the front panel according to Removal of the Air Filters Front Panel You can remove the front grille without detaching the service cover 1 Re...

Страница 162: ...ront grille The convex marks on the front panel indicate the position of the hooks 3 Pull the upper part of the front grille out and lift the lower part up and then remove the front grille Make sure t...

Страница 163: ...al blades 2 Bend the horizontal blade slightly and release the center shaft 2 locations Remove both the horizontal blades upper and lower in the same way 3 Release the left shaft 4 Slide the horizonta...

Страница 164: ...n guards beforehand The unit has 3 sets of vertical blades linked one another with interlock rods 1 Release the right and left shafts 2 Unfasten the 3 hooks for each set of vertical blades 3 Pull the...

Страница 165: ...Remove the electrical box Preparation Remove the front grille according to the Removal of Front Grille 1 Remove the screw and remove the drip proof plate 2 Cut the clamp 3 4 5 Pull out the indoor heat...

Страница 166: ...move the electrical box without detaching the terminal board Screw M4 30 7 Disconnect the connector for the fan motor S1 8 Disconnect the connector for the swing motor S6 S6 for horizontal blades 9 Re...

Страница 167: ...trical box has a hook on its back 11 Pull the electrical box out Catch the back hook of the electrical box when reassembling 2 Remove the PCBs 1 Remove the screw on the electrical box Screw M4 16 2 Pu...

Страница 168: ...sten the hooks on the lower side 4 Cut the clamp 5 The signal receiver unit has 3 PCBs Unfasten the hooks and remove each PCB Disconnect every connector from each PCB Remove the signal receiver unit w...

Страница 169: ...C fan motor S6 swing motor for horizontal blades S26 buzzer PCB S28 signal receiver PCB S32 indoor heat exchanger thermistor Refer to page 15 for detail 3 Remove the swing motor for horizontal blades...

Страница 170: ...nnecting the refrigerant pipe If the refrigerant pipe is disconnected with the compressor operating and the stop valve open air may be sucked in and may generate an over pressure in refrigeration cycl...

Страница 171: ...the indoor unit from the installation plate 3 Remove the indoor heat exchanger 1 Unfasten the hook of the piping fixture at the back of the indoor unit and pull out the piping 2 Widen the auxiliary pi...

Страница 172: ...exchanger be sure to wear protective gloves or wrap the indoor heat exchanger with cloths or you may be injured by the fins 4 Push the hooks on the right side and unfasten them 5 Pull the indoor heat...

Страница 173: ...disassembling work Step Procedure Points 1 Remove the right side plate 1 Remove the 2 screws You can remove the fan rotor without detaching the right side plate 2 Lift the right side plate and remove...

Страница 174: ...tops Then give the screw one more turn 3 Rotate the fan rotor and confirm the fan motor and the fan rotor are installed appropriately 4 Tighten the screw completely if appropriate 5 If not appropriate...

Страница 175: ...t for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Appearance features Take care not to cut your finger by the fins of the outdoor heat exc...

Страница 176: ...screws right 1 screw left 2 screws and remove the top panel 3 Remove the 5 screws of the front panel 4 Lift up the left side and unfasten the hooks 5 Release the right side hooks and remove the front...

Страница 177: ...Remove the 4 screws of the discharge grille Unfasten the 6 hooks and remove the discharge grille 3 Remove the shield plate and the conduit 1 Remove the 2 screws 2 Remove the shield plate Step Procedu...

Страница 178: ...or Unit 09 12 Class SiUS041111 170 Removal Procedure 3 Remove the 2 screws 4 Remove the conduit 5 Remove the conduit mounting plate Step Procedure Points R11751 Conduit R11752 Conduit mounting plate R...

Страница 179: ...e outdoor fan Preparation Remove the panels according to the Removal of Outer Panels Nut size M6 1 2 Remove the nut of the outdoor fan Remove the outdoor fan When reassembling align mark of the outdoo...

Страница 180: ...eassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 4 Release the fan motor lead wire from the hooks 5 Remove the 3 screws and remo...

Страница 181: ...all power supplies before disassembling work Step Procedure Points 1 Remove the right side panel Preparation Remove the panels according to the Removal of Outer Panels 1 Release the outdoor temperatur...

Страница 182: ...dure 3 Remove the 4 screws on the right side panel 4 Unfasten the hook on the rear side When reassembling make sure to fit the hook 5 Unfasten the hook and remove the right side panel Step Procedure P...

Страница 183: ...thermistor up to the dent of fixture 1 Release the discharge pipe thermistor 2 Release the outdoor heat exchanger thermistor 3 Lift the hook with a flat screwdriver and remove the electronic componen...

Страница 184: ...t the clamp 5 Release the harnesses 6 Disconnect the connector for the thermistors S90 S90 outdoor temperature thermistor outdoor heat exchanger thermistor discharge pipe thermistor 7 Remove the therm...

Страница 185: ...Disconnect the connector for the overload protector S40 2 Disconnect the connector for the four way valve coil S80 The cooling only model has no harness for S80 3 Disconnect the connector for the ele...

Страница 186: ...connector for the compressor motor 5 Release the harnesses from the hook 6 Unfasten the hook of the electrical box from the partition plate with a flat screwdriver The electrical box can be removed b...

Страница 187: ...remove the electrical box 4 Remove the control PCB 1 Disconnect the 2 terminals of the reactor 2 Remove the screw of the terminal board and pull out the terminals Step Procedure Points R11776 Electri...

Страница 188: ...ass SiUS041111 180 Removal Procedure 3 Cut the clamp 4 Remove the 3 screws and remove the reactor 5 Disconnect the 3 connectors for the filter PCB S10 HN3 HL3 Step Procedure Points R11780 Reactor R117...

Страница 189: ...11 Outdoor Unit 09 12 Class Removal Procedure 181 6 Release the harnesses 7 Remove the 6 screws 8 Unfasten the 2 hooks 9 Lift and remove the control PCB Step Procedure Points R11782 Control PCB R10717...

Страница 190: ...HL3 filter PCB S20 electronic expansion valve coil S40 overload protector S70 fan motor S80 four way valve coil S90 thermistors 5 Remove the filter PCB 1 Remove the screw of the ground 2 Cut the clam...

Страница 191: ...SiUS041111 Outdoor Unit 09 12 Class Removal Procedure 183 3 Release the harnesses from the hook 4 Remove the screw Step Procedure Points R11787 R11788...

Страница 192: ...Outdoor Unit 09 12 Class SiUS041111 184 Removal Procedure 5 Unfasten the 2 hooks 6 Release the harnesses 7 Remove the filter PCB Step Procedure Points R11789 R11790 R11791 Filter PCB...

Страница 193: ...or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the partition plate 1 Remove the 2 screws 2 The partition plate has a hook on the lower side Lift...

Страница 194: ...blanket carefully 1 Lift and remove the sound blanket top 2 Pull the sound blanket outer and inner 2 out 3 Pull the sound blanket inner 1 out Since the piping ports on the sound blanket are torn easi...

Страница 195: ...s before disassembling work Step Procedure Points 1 Remove the peripheries The cooling only model has no four way valve coil 1 Remove the screw and remove the four way valve coil 2 Remove the terminal...

Страница 196: ...Outdoor Unit 09 12 Class SiUS041111 188 Removal Procedure 5 Remove the electronic expansion valve coil 6 Remove the putty Step Procedure Points R11798 Electronic expansion valve coil R11800...

Страница 197: ...four way valve and the deterioration of the gaskets affected by heat Keep below 120 C 248 F by wrapping the four way valve with a wet cloth and provide water so that the cloth does not dry In case of...

Страница 198: ...inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C 248 F by wrapping the four way valve with a wet cloth and provide water so that the cloth does not dry...

Страница 199: ...more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the 3 screws and lift the top panel Take care not to cut your finger by the fins of the outdoor heat...

Страница 200: ...edure 4 Unfasten the right side hooks 5 Unfasten the left side hooks Remove the front panel When reassembling fit the left side of the front panel first 6 Remove the screw of the stop valve cover Step...

Страница 201: ...SiUS041111 Outdoor Unit 15 18 24 Class Removal Procedure 193 7 Pull down the stop valve cover to unfasten the hooks and remove it The stop valve cover has 5 hooks Step Procedure Points R14704 R14705...

Страница 202: ...off all power supplies before disassembling work Step Procedure Points 1 Remove the shield plate Preparation Remove the top panel and the front panel according to the Removal of Outer Panels This proc...

Страница 203: ...groove and the 2 hooks of the partition plate The harnesses of S70 and S20 cross each other 5 Remove the nut of the outdoor fan Nut size M6 When reassembling align mark of the outdoor fan with D cut s...

Страница 204: ...val Procedure 6 Remove the screw of the fan motor fixing frame 7 Pull down the fan motor fixing frame to unfasten the 2 hooks at the bottom 8 Remove the fan motor fixing frame Step Procedure Points R1...

Страница 205: ...1111 Outdoor Unit 15 18 24 Class Removal Procedure 197 9 Open the hook and release the fan motor lead wire 10 Remove the 4 screws and remove the fan motor Step Procedure Points R14296 Hook Fan motor R...

Страница 206: ...work Step Procedure Points 1 Remove the 2 screws of the protection plate When reassembling pass the connecting wires through the conduit and secure them with a lock nut 2 Remove the protection plate 3...

Страница 207: ...rocedure 199 5 Remove the screws and remove the connecting wires 6 Pull out the outdoor temperature thermistor 7 Remove the 6 screws of the right side panel Step Procedure Points R14299 R14300 Outdoor...

Страница 208: ...ks and the 1 upper hook Remove the right side panel When reassembling insert the 2 lower hooks and the 1 upper hook of the back 9 Cut the clamp 10 Pull out the outdoor heat exchanger thermistor Step P...

Страница 209: ...cedure 201 11 Peel off the filament tape 12 Disconnect the connector for the fan motor S70 13 Disconnect the connector for the four way valve coil S80 The cooling only models have no harness for S80 S...

Страница 210: ...1111 202 Removal Procedure 14 Pull out the clamp 15 Disconnect the connector for the electronic expansion valve coil S20 16 Pull out the clamp 17 Remove the wire saddle Step Procedure Points R14309 R1...

Страница 211: ...ct the connectors in the following order 1 S40 2 S20 3 S80 4 S70 19 Pull out the clamp The compressor harness has a clamp When reassembling insert the clamp as below 20 Disconnect the relay connector...

Страница 212: ...rocedure 22 Disconnect the connector for the thermistors S90 23 Pull out the clamp When reassembling insert the clamp as below 24 Remove the wire saddle 25 Pull out the clamp Step Procedure Points R14...

Страница 213: ...e 205 26 Remove the screw 27 Pull out the 2 clamps at the bottom of the electrical box When reassembling insert the 2 clamps of the thermistor assembly into the holes as below 28 Remove the electrical...

Страница 214: ...off all power supplies before disassembling work Step Procedure Points 1 Remove the main PCB S12 for HL4 HN4 on filter PCB 1 Disconnect the connector S12 and pull out the clamp 2 Disconnect the conne...

Страница 215: ...5 18 24 Class Removal Procedure 207 4 Pull out the clamp When reassembling insert the clamp as below 5 Remove the 2 upper screws 6 Remove the 1 lower screw Step Procedure Points R14325 HL2 blue HN2 wh...

Страница 216: ...or Unit 15 18 24 Class SiUS041111 208 Removal Procedure 7 Lift the main PCB assembly 8 Unfasten the 4 hooks at the bottom 9 Remove the 8 screws Step Procedure Points R14328 Main PCB Assembly R14329 R1...

Страница 217: ...PCB S20 electronic expansion valve coil S40 overload protector S70 fan motor S80 four way valve coil S90 thermistors HL3 HN3 filter PCB 2 Remove the radiation fin 1 Remove the 2 screws on the bottom o...

Страница 218: ...3 Remove the filter PCB 1 Remove the ground screw 2 Pull out the terminals from the terminal board 1 black 2 white 3 red 3 Pull out the clamp 4 Release the harnesses from the groove Step Procedure Po...

Страница 219: ...US041111 Outdoor Unit 15 18 24 Class Removal Procedure 211 5 Remove the 2 screws 6 Unfasten the 3 hooks of the filter PCB assembly 7 Remove the 1 screw Step Procedure Points R14365 R14366 R14367 R1436...

Страница 220: ...Outdoor Unit 15 18 24 Class SiUS041111 212 Removal Procedure 8 Unfasten the 2 hooks 9 Remove the filter PCB Refer to page 19 for detail Step Procedure Points R14369 R14370...

Страница 221: ...t for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the partition plate 1 Remove the 2 screws 2 Pull out the clamp from the partition...

Страница 222: ...ound blanket carefully Be careful not to lose the clip for the thermistor 1 Release the discharge pipe temperature thermistor 2 Remove the sound blanket top upper 3 Remove the sound blanket top lower...

Страница 223: ...Outdoor Unit 15 18 24 Class Removal Procedure 215 4 Remove the sound blanket side outer 5 Remove the sound blanket side inner Step Procedure Points R14347 Sound blanket side outer R14348 Sound blanket...

Страница 224: ...r so that the cloth does not dry Keep below 120 C 248 F Warning Be careful not to burn yourself burnt with pipes and other parts that are heated by the gas brazing machine Warning If the refrigerant g...

Страница 225: ...mosphere Make sure to collect all the refrigerant gas Cautions for restoration 1 Restore the piping by non oxidation brazing 2 It is required to prevent the carbonization of the oil inside the four wa...

Страница 226: ...t for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the compressor lead wires and the overload protec...

Страница 227: ...steel plate so that the brazing flame cannot influence peripheries Be careful not to burn the compressor terminals the name plate or the heat exchanger fin Before working make sure that the refrigera...

Страница 228: ...g Operation 222 3 Trial Operation 223 4 Field Settings 224 4 1 Model Type Setting 224 4 2 Temperature Display Switch 224 4 3 When 2 Units are Installed in 1 Room 225 4 4 Facility Setting Switch coolin...

Страница 229: ...Detail 1 Remove the valve caps from the liquid stop valve and the gas stop valve 2 Carry out forced cooling operation 3 After 5 to 10 minutes close the liquid stop valve with a hexagonal wrench 4 Afte...

Страница 230: ...ration ON OFF button SW1 on the indoor unit for 5 seconds 2 Press the forced cooling operation ON OFF switch SW1 on the outdoor unit 15 18 24 class only Command frequency 58 Hz 09 12 class 30 Hz 15 18...

Страница 231: ...restarts operation with the previous mode when the circuit breaker is restored In cooling mode select the lowest programmable temperature in heating mode select the highest programmable temperature Tr...

Страница 232: ...o set the heat pump model or cooling only model Make the setting as shown in the illustration The factory set is the heat pump side Heat pump model Set the DIP switch to H P Cooling only model Set the...

Страница 233: ...emote controller can be set for different addresses Both the indoor unit PCB and the wireless remote controller need alteration Indoor Unit PCB Cut the address setting jumper JA on the control PCB Wir...

Страница 234: ...to maintain the pressure difference When the pressure difference returns to high again the fan starts to rotate again 09 12 class 15 18 24 class Caution 1 If the outdoor unit is installed where the ou...

Страница 235: ...ion When connected factory set When cut JB on indoor unit PCB Fan speed setting when compressor stops for thermostat OFF effective only at cooling operation Fan speed setting Remote controller setting...

Страница 236: ...of the power transistor and the diode bridge Applying the paste should be implemented in accordance with the following instruction NOTE There is the possibility of failure with smoke in case of bad h...

Страница 237: ...SiUS041111 Appendix 229 Part 9 Appendix 1 Piping Diagrams 230 1 1 Indoor unit 230 1 2 Outdoor Unit 231 2 Wiring Diagrams 233 2 1 Indoor Unit 233 2 2 Outdoor Unit 234...

Страница 238: ...6CuT 9 32CuT 9 32CuT 9 32CuT CROSS FLOW FAN FIELD PIPING 1 4CuT M FAN MOTOR 3 8CuT FIELD PIPING 3 8CuT REFRIGERANT FLOW COOLING HEATING THERMISTOR ON HEAT EXCH 4D066211A INDOOR UNIT 5 16CuT HEAT EXCHA...

Страница 239: ...16CuT 16 0 5 8CuT 5 16CuT 12 0 15 32CuT CAPILLARY TUBE 1 5 16CuT 5 16CuT 5 32CuT 8 0 4 0 5 16CuT CAPILLARY TUBE 2 6 0 6 0 REFRIGERANT FLOW 5 16CuT 5 32CuT 5 16CuT 1 4CuT 1 4CuT COOLING 8 0 4 0 CAPILLA...

Страница 240: ...EAT EXCHANGER 5 16CuT 5 16CuT 16 0 5 8CuT 5 16CuT 12 0 15 32CuT CAPILLARY TUBE 1 5 16CuT 5 32CuT 5 16CuT 4 0 8 0 5 16CuT CAPILLARY TUBE 2 6 0 6 0 REFRIGERANT FLOW 5 32CuT 5 16CuT 5 16CuT 1 4CuT 1 4CuT...

Страница 241: ...THEN BACK ON AGAIN FRAME GROUND FUSE HARNESS PILOT LAMP FAN MOTOR SWING MOTOR PRINTED CIRCUIT BOARD THERMISTOR CONNECTOR OPERATION SWITCH TERMINAL STRIP PROTECTIVE GROUND C 3D065939B FG F1U H1 H3 H1P...

Страница 242: ...indoor MRM20 N 5 FU3 Z3C X1M DB1 L804 HL3 HL2 30A HL1 BLU 1 L1 BLK 1 MRM10 HN1 V2 WHT 2 L2 2 HN3 HN2 S C8 C7 WHT RED 3 3 1 V3 BLK 1 BLK FU1 L1 BLK 3 15A BLK L2 BLK PCB2 S11 S10 BLK DC_N1 DC_P1 N 4 GRN...

Страница 243: ......

Страница 244: ...actured for export to numerous countries throughout the world Daikin Industries Ltd does not have control over which products are exported to and used in a particular country Prior to purchase please...

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