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SiUS04-904

Control Specification (15/18/24 Class)

Function and Control

49

4. Control Specification (15/18/24 Class)

4.1

Mode Hierarchy

Outline

There are two modes; the mode selected in the user’s place (normal air conditioning mode) and
forced operation mode for installation and providing service.

Detail

For heat pump model

There are the following modes; stop, cooling (includes drying), heating (include defrosting)

Note:

Unless specified otherwise, an indoor dry operation command must be regarded as cooling
operation.

Air conditioner control mode

Forced operating mode

Forced cooling (for Pump Down Operation)

Normal operating mode

Cooling

Heating

Defrosting

Stop mode (except for cooling/heating modes by indoor command)

Preheat operation

During C (capacitor) is discharging

Stop

(R2829)

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Содержание FTXS09HVJU

Страница 1: ...SiUS04 904 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type H Series...

Страница 2: ...Inverter Pair Wall Mounted Type H Series Heat Pump Indoor Unit FTXS09HVJU FTXS12HVJU FTXS15HVJU FTXS18HVJU FTXS24HVJU Outdoor Unit RXS09DAVJU RX09FAVJU RXS12DAVJU RX12FAVJU RXS15DVJU RX15FVJU RXS18DV...

Страница 3: ...2DAVJU RX09 12FAVJU 16 1 4 RXS15 18 24DVJU RX15 18 24FVJU 18 Part 4 Function and Control 21 1 Main Functions 23 1 1 Frequency Principle 23 1 2 Power Airflow Dual Louvers Wide Angle Fins and Auto Swing...

Страница 4: ...ing Start up 52 4 4 Discharge Pipe Temperature Control 53 4 5 Input Current Control 53 4 6 Freeze up Protection Control 54 4 7 Heating Peak cut Control 54 4 8 Fan Control 55 4 9 Liquid Compression Pro...

Страница 5: ...ge 138 4 22 Over voltage Detection 142 4 23 Low voltage Detection 143 5 Check 144 5 1 How to Check 144 Part 7 Removal Procedure 153 1 FTXS09 12HVJU 154 1 1 Removal of Air Filter 154 1 2 Removal of Fro...

Страница 6: ...Removal of Sound Blanket 246 4 6 Removal of Four Way Valve 249 4 7 Removal of Electronic Expansion Valve 250 4 8 Removal of Compressor 251 Part 8 Other Considerations 253 1 Other Considerations 254 1...

Страница 7: ...cause frostbite 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 r...

Страница 8: ...s have scratches or have become deteriorated have them 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 pow...

Страница 9: ...Safety Considerations SiUS04 904 viii Safety Considerations...

Страница 10: ...SiUS04 904 List of Functions 1 Part 1 List of Functions 1 Functions 2...

Страница 11: ...Auto Restart after Power Failure Vertical Fins operate horizontally Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Trea...

Страница 12: ...Durability Auto Restart after Power Failure Vertical Fins operate horizontally Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorr...

Страница 13: ...SiUS04 904 4 Specifications Part 2 Specifications 1 Specifications 5 1 1 SEER 16 Models 5 1 2 SEER 13 Models 8...

Страница 14: ...e Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D in mm...

Страница 15: ...unning Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D in mm 11 7 16 41 5 16 9 3 8 291...

Страница 16: ...movable Washable Mildew Proof Running Current Rated A 0 20 Power Consumption Rated W 45 Power Factor 97 8 Temperature Control Microcomputer Control Dimensions H W D in mm 11 7 16 41 5 16 9 3 8 291 104...

Страница 17: ...dew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D in mm 10 3 4 30 7 8...

Страница 18: ...nning Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D in mm 11 7 16 41 5 16 9 3 8 291...

Страница 19: ...unning Current Rated A 0 20 Power Consumption Rated W 45 Power Factor 97 8 Temperature Control Microcomputer Control Dimensions H W D in mm 11 7 16 41 5 16 9 3 8 291 1049 238 mm Packaged Dimensions H...

Страница 20: ...Wiring Diagram 11 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 12 1 1 FTXS09 12HVJU 12 1 2 FTXS15 18 24HVJU 14 1 3 RXS09 12DAVJU RX09 12FAVJU...

Страница 21: ...r Hall IC 4 S21 Connector for centralized control HA 5 S26 Connector for signal receiver PCB 6 S27 Connector for control PCB 7 S32 Connector for heat exchanger thermistor 8 S35 Connector for INTELLIGE...

Страница 22: ...Circuit Board Connector Wiring Diagram 13 PCB Detail PCB 1 Control PCB indoor unit PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE sensor PCB Control PCB V1 FU1 S1 SW7 LED1 LED2 LED3 RTH1 S27 S7 S6 S...

Страница 23: ...d control HA 5 S26 Connector for buzzer PCB 6 S28 Connector for signal receiver PCB 7 S32 Connector for heat exchanger thermistor 8 S35 Connector for INTELLIGENT EYE sensor PCB 1 S29 Connector for con...

Страница 24: ...ector Wiring Diagram 15 PCB Detail PCB 1 Control PCB indoor unit PCB 2 Signal Receiver PCB PCB 3 Buzzer PCB PCB 4 Display PCB PCB 5 INTELLIGENT EYE sensor PCB S1 V1 FU1 S6 S8 S26 R2860 S28 S32 JC JB J...

Страница 25: ...S11 Connector for control PCB 1 S10 Connector for filter PCB 2 S20 Connector for electronic expansion valve coil 3 S30 Connector for compressor motor 4 S40 Connector for overload protector 5 S70 Conn...

Страница 26: ...ing Diagram SiUS04 904 Printed Circuit Board Connector Wiring Diagram 17 PCB Detail PCB 1 Filter PCB PCB 2 Control PCB outdoor unit FU3 20A S11 R6969 V3 V2 FU2 3 15A S30 HN3 HC3 S70 HC4 R6970 S40 LED...

Страница 27: ...oad protector 6 S51 S101 Connector for service monitor PCB 7 S80 Connector for four way valve coil 8 S90 Connector for thermistors outdoor air heat exchanger and discharge pipe 9 S91 Connector for fin...

Страница 28: ...rcuit Board Connector Wiring Diagram 19 PCB Detail PCB 1 Control PCB outdoor unit PCB 2 Power Supply PCB Service Monitor PCB E AC1 FU2 3 15A H1 H2 S32 S33 S71 S31 S91 R6971 S40 S20 S90 S101 S51 S80 S1...

Страница 29: ...SiUS04 904 Printed Circuit Board Connector Wiring Diagram 20 Printed Circuit Board Connector Wiring Diagram MID SPM S34 S72 R2868 S70 FU201 3 15A R2869 CN14 CN11 L1 L2...

Страница 30: ...Printed Circuit Board Connector Wiring Diagram SiUS04 904 Printed Circuit Board Connector Wiring Diagram 21...

Страница 31: ...4 Discharge Pipe Temperature Control 40 3 5 Input Current Control 40 3 6 Freeze up Protection Control 41 3 7 Heating Peak cut Control 42 3 8 Fan Control 42 3 9 Liquid Compression Protection Function 2...

Страница 32: ...SiUS04 904 22 Function and Control 4 13 Malfunctions 59 4 14 Forced Operation Mode 61 4 15 Additional Functions 61...

Страница 33: ...rinciple Drawing of Inverter The following drawing shows a schematic view of the inverter principle Phase Description 1 The supplied AC power source is converted into a DC power source 2 The DC power...

Страница 34: ...y Limits The following table shows the functions that define the minimum and maximum frequency Forced Cooling Operation For more information refer to Forced operation mode on page 48 1 2 Power Airflow...

Страница 35: ...starting from the right upper point as viewed from the front side of the indoor unit 1 3 Fan Speed Control for Indoor Units Control Mode The airflow rate can be automatically controlled depending on t...

Страница 36: ...emperature and airflow volume the temperature adjustment and fan adjustment buttons are inoperable in this mode In Case of Inverter Units The microcomputer automatically sets the temperature and fan s...

Страница 37: ...is set as automatic cooling heating setting temperature 64 to 96 F 18 35 C 2 Main unit setting temperature equals remote controller setting temperature 3 Mode switching points are as follows Heating...

Страница 38: ...n zone A Thermostat ON Condition The temperature difference is above zone C after being in zone A The system resumes from defrost control in any zones except A The operation turns on in any zones exce...

Страница 39: ...et temperature for the first one hour then automatically raises the temperature setting slightly in the case of cooling or lowers it slightly in the case of heating for economical operations This prev...

Страница 40: ...e a signal from the sensor in 20 minutes it detects that nobody is in the room and operates the unit at a temperature shifted 3 6 F 2 C from the set temperature COOL 3 6 F 2 C higher DRY 1 8 F 1 C hig...

Страница 41: ...r volume from that for normal time over to outing time by one touch is provided This function responds also to the need for keeping up with weak cooling or heating This operation allows you to set a s...

Страница 42: ...nd heating capacity operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency Details of the Control When the POWERFUL button is pushed in each operation mod...

Страница 43: ...itch when the remote controller is missing or if its battery is dead Every press of the switch changes from ON to OFF or from OFF to ON Push this button once to start operation Push once again to stop...

Страница 44: ...es bacteria and viruses It lasts for 3 years without replacement if washed once every 6 months 1 11 5 Air Filter Prefilter The air filter material is permeated with a safe odorless mold preventative t...

Страница 45: ...ace of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the discharg...

Страница 46: ...etween a room temperature and the temperature set by the remote controller 3 Frequency command from an indoor unit 4 Frequency initial setting 5 PI control Air conditioner control mode Forced operatin...

Страница 47: ...limit frequency Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature heating peak...

Страница 48: ...cy management when other controls are functioning When frequency is dropping Frequency management is carried out only when the frequency drops For limiting lower limit Frequency management is carried...

Страница 49: ...stopped 3 3 3 Four Way Valve Operation Compensation Outline At the beginning of the operation as the four way valve is switched acquire the differential pressure required for activating the four way...

Страница 50: ...to keep this temperature from going up further Detail Divide the Zone Management within the Zones 3 5 Input Current Control Outline Detects an input current by the CT while the compressor is running a...

Страница 51: ...ase the operation mode is cooling The current drops when outdoor air temperature becomes higher than a certain level model by model 2 In case the operation mode is heating The current drops when outdo...

Страница 52: ...operation 4 Tap control when dropping function is working 5 Fan control when forced operation 6 Fan control in low noise mode 7 Fan control during heating operation 8 Fan control in the quiet mode 9 F...

Страница 53: ...efrost operation The heat exchanger must be in heating operation 6 minutes should elapse after the compressor is started and more than 38 minutes of accumulated time should pass after the start of ope...

Страница 54: ...a discharge pipe temperature is abnormally high 5 Electronic expansion valve control when the discharge pipe thermistor is disconnected Feedback Control 1 Discharge pipe temperature control Detail R28...

Страница 55: ...perature 3 11 6 Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature If...

Страница 56: ...and outdoor heat exchanger temperature and adjust the electronic expansion valve opening so that the actual discharge pipe temperature becomes close to that temperature Indirect SH superheating contr...

Страница 57: ...tect refrigerant shortage 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...

Страница 58: ...ly voltage is detected each time equipment operation starts Cooling room temperature indoor heat exchanger temperature 7 2 F 4 C outdoor heat exchanger temperature outdoor temperature 7 2 F 4 C Heatin...

Страница 59: ...rvice Detail For heat pump model There are the following modes stop cooling includes drying heating include defrosting Note Unless specified otherwise an indoor dry operation command must be regarded...

Страница 60: ...as an upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature low Hz high pressure heating peak cut freeze up...

Страница 61: ...d time adjust the frequency up and down according to the D value When the D value is small lower the frequency When the D value is large increase the frequency 3 Limit of frequency variation width Whe...

Страница 62: ...eration has stopped Detail The OFF delay of four way valve Energize the coil for 150 seconds after unit operation is stopped 4 3 3 Four Way Valve Operation Compensation Outline At the beginning of the...

Страница 63: ...ter rushing on the stop zone the compressor operation stops If a dropping current continues for 1 0 second after rushing on the dropping zone the frequency is reduced by 2 Hz Repeating the above dropp...

Страница 64: ...ure Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 seconds from operation start Control in Each Zone 4 7 Heating Peak cut Contro...

Страница 65: ...e is higher than 39 F 3 8 C the fan tap must be turned to L 4 9 Liquid Compression Protection Function 2 Outline In order to obtain the dependability of the compressor the compressor must be stopped a...

Страница 66: ...r temperature and heat exchanger temperature Under the conditions that the system is in heating operation 6 minutes after the compressor is started and more than 44 minutes of accumulated time pass si...

Страница 67: ...on valve control when the discharge pipe thermistor is disconnected Feedback Control 1 Discharge pipe temperature control Detail The following are the examples of control functioning in each mode by t...

Страница 68: ...rge pipe temperature 4 12 6 Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation tem...

Страница 69: ...ed by indoor heat exchanger temperature and outdoor heat exchanger temperature The opening degree of the electronic expansion valve is controlled by following The target discharge pipe temperature The...

Страница 70: ...d refrigerant shortage is detected by checking a power consumption When operating with refrigerant shortage although the rise of discharge pipe temperature is great and the electronic expansion valve...

Страница 71: ...not abnormal and not in the 3 minute standby mode 2 The operating mode of the outdoor unit is the stop mode 3 The forced operation is ON The forced operation is allowed when the above and conditions...

Страница 72: ...Control Specification 15 18 24 Class SiUS04 904 62 Function and Control...

Страница 73: ...SiUS04 904 62 Operation Manual Part 5 Operation Manual 1 System Configuration 63 2 FTXS09 12HVJU 64 3 FTXS15 18 24HVJU 77...

Страница 74: ...ions to the user can reduce requests for servicing by 80 However proficient the installation and operating functions of the AC system are the customer may blame either the room air conditioner or its...

Страница 75: ...FTXS09 12HVJU SiUS04 904 64 Operation Manual 2 FTXS09 12HVJU Changes the temperature setting Selects the airflow rate setting Displays the current settings...

Страница 76: ...SiUS04 904 FTXS09 12HVJU Operation Manual 65 Cancels the timer setting Changes the ON OFF Selects the operation mode AUTO DRY COOL HEAT FAN...

Страница 77: ...FTXS09 12HVJU SiUS04 904 66 Operation Manual...

Страница 78: ...SiUS04 904 FTXS09 12HVJU Operation Manual 67...

Страница 79: ...louvers have reached the desired position To adjust the fins vertical blades louvers begin to move The louvers stop moving louvers movement range depends on the operation mode Always use a remote con...

Страница 80: ...SiUS04 904 FTXS09 12HVJU Operation Manual 69 human movement With someone in the room With no one in the room Someone back in the room is no longer displayed on the LCD displayed on the LCD...

Страница 81: ...FTXS09 12HVJU SiUS04 904 70 Operation Manual Do not hit or forcefully push the INTELLIGENT EYE sensor as it can cause damage and malfunction center...

Страница 82: ...SiUS04 904 FTXS09 12HVJU Operation Manual 71 is no longer displayed on the LCD is no longer displayed on the LCD...

Страница 83: ...FTXS09 12HVJU SiUS04 904 72 Operation Manual is no longer displayed on the LCD...

Страница 84: ...SiUS04 904 FTXS09 12HVJU Operation Manual 73 is no longer displayed on the LCD...

Страница 85: ...FTXS09 12HVJU SiUS04 904 74 Operation Manual...

Страница 86: ...SiUS04 904 FTXS09 12HVJU Operation Manual 75...

Страница 87: ...FTXS09 12HVJU SiUS04 904 76 Operation Manual 3P232717 1C...

Страница 88: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 77 3 FTXS15 18 24HVJU Changes the temperature setting Displays the current settings Selects the airflow rate setting...

Страница 89: ...FTXS15 18 24HVJU SiUS04 904 78 Operation Manual Selects the operation mode AUTO DRY COOL HEAT FAN Cancels the timer setting Changes the ON OFF...

Страница 90: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 79 is no longer displayed on the LCD...

Страница 91: ...FTXS15 18 24HVJU SiUS04 904 80 Operation Manual...

Страница 92: ...blades When the louvers have reached the desired position fins the louvers move is no longer displayed on the LCD The louvers stop moving To adjust the fins vertical blades When the fins have reached...

Страница 93: ...button is selected the louver swinging range depends on the operation mode See figure louvers and fins and fins move in turn Notes on louver and fin angles Always use a remote controller to adjust the...

Страница 94: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 83 is no longer displayed on the LCD...

Страница 95: ...FTXS15 18 24HVJU SiUS04 904 84 Operation Manual Do not hit or forcefully push the operation...

Страница 96: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 85 is no longer displayed on the LCD...

Страница 97: ...FTXS15 18 24HVJU SiUS04 904 86 Operation Manual is no longer displayed on the LCD...

Страница 98: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 87 is no longer displayed on the LCD...

Страница 99: ...FTXS15 18 24HVJU SiUS04 904 88 Operation Manual...

Страница 100: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 89...

Страница 101: ...FTXS15 18 24HVJU SiUS04 904 90 Operation Manual 3P232717 2C...

Страница 102: ...7 OL Activation Compressor Overload 108 4 8 Compressor Lock 109 4 9 DC Fan Lock 111 4 10 Input Overcurrent Detection 112 4 11 Four Way Valve Abnormality 115 4 12 Discharge Pipe Temperature Control 119...

Страница 103: ...When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation Lamp The Single Spli...

Страница 104: ...osis SiUS04 904 Service Diagnosis 93 Troubleshooting with LED Indication The outdoor unit has one green LED LED A on the PCB The flashing green LED indicates normal condition of microcomputer operatio...

Страница 105: ...is 64 4 F 18 C or higher only for heat pump model and cooling operation cannot be used when the outdoor air temperature is below 14 F 10 C Diagnosis with remote controller indication 98 Equipment ope...

Страница 106: ...notifies with a long beep Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer cancel button down for 5 seconds The code display...

Страница 107: ...e the figure until you hear the long beep 3 Diagnose by the sound beep The left side numeral is incorrect move to the next number beep beep The right side number is incorrect move to the next number l...

Страница 108: ...s is your error code Refer to the troubleshooting section to learn more about his code 7 Determine the error code The figure indicated when you hear the long beep sound is the error code Error codes a...

Страница 109: ...m temperature thermistor abnormality 105 105 Outdoor Unit E5 OL activation compressor overload 108 108 E6 Compressor lock 109 110 E7 DC fan lock 111 111 E8 Input overcurrent detection 112 113 EA Four...

Страница 110: ...here is no zero cross detection in approximately 10 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Co...

Страница 111: ...temperature detected by the indoor unit heat exchanger thermistor Malfunction Decision Conditions High pressure control During heating operations the temperature detected by the indoor heat exchanger...

Страница 112: ...g or disconnecting the connector or parts damage may occur Provide sufficient air passage Clean the air filter Clean the heat exchanger Replace the indoor unit PCB Replace the thermistor replace the i...

Страница 113: ...he fan motor lead wires Operation halt due to faulty capacitor of the fan motor Detection error due to faulty indoor unit PCB Troubleshooting Check No 16 Refer to P 151 NO NO NO Check No 16 Check Hall...

Страница 114: ...Conditions When 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 Operation halt due...

Страница 115: ...before connecting or disconnecting the connector or parts damage may occur Replace the fan motor Replace the indoor unit PCB Replace the indoor unit PCB Note The motor may break when the motor connec...

Страница 116: ...an 120 or below about 58 F 50 C more than 1 860 k Note The values vary slightly in some models Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check No 06 Refe...

Страница 117: ...hen the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal Supposed Causes Faulty outdoor unit PCB Faulty indoor unit PCB Indoor unit outdoor unit...

Страница 118: ...nd correct it NO R8300 NO YES YES NO NO Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts damage may occur YES NO Correct the indoor unit outdoor u...

Страница 119: ...eck No 04 Refer to P 144 Check No 05 Refer to P 145 Check No 06 Refer to P 146 Check No 11 Refer to P 149 R7137 Caution Be sure to turn off the power switch before connecting or disconnecting the conn...

Страница 120: ...uses Compressor locked Compressor harness disconnected Troubleshooting Turn off the power Disconnect the harnesses U V and W R8065 Caution Be sure to turn off the power switch before connecting or dis...

Страница 121: ...6 times Clearing condition Continuous run for about 5 minutes normal Supposed Causes Compressor locked Troubleshooting Turn off the power Disconnect the harnesses U V and W R10499 Caution Be sure to t...

Страница 122: ...bout 5 minutes normal Supposed Causes Fan motor breakdown Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matter stuck in the fan Troubleshooting Check No 15 Ref...

Страница 123: ...08 Refer to P 147 R10498 Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts damage may occur An input overcurrent may result from wrong internal wi...

Страница 124: ...ng CT input with the compressor running continues for 2 5 seconds CT input Above 20 A The system is shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal...

Страница 125: ...put overcurrent check the wires again NO YES NO YES YES NO Get restarted and measure the input current Check No 14 Check the main circuit electrolytic capacitor Check No 08 Check the discharge pressur...

Страница 126: ...ecked to see if they function within their normal ranges in the operating mode Malfunction Decision Conditions A following condition continues over 10 minutes after operating 5 minutes Cooling dry ope...

Страница 127: ...stor Refer to the refrigerant line check procedure Replace the four way valve defective or dust clogged Reconnect in position Caution Be sure to turn off the power switch before connecting or disconne...

Страница 128: ...hey function within their normal ranges in the operating mode Malfunction Decision Conditions A following condition continues over 1 minute after operating 10 minutes Cooling dry operation room temp i...

Страница 129: ...ion Replace a defective thermistor Refer to the refrigerant line check procedure Correct Check the continuity of the four way valve coil and harness Check No 05 Check the four way valve switching outp...

Страница 130: ...r or outdoor air temperature thermistor defective Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective Troubleshooting Check No 04 Refer...

Страница 131: ...ing 60 minute compressor running time total time Supposed Causes Refrigerant shortage Four way valve malfunctioning Discharge pipe thermistor defective heat exchanger or outdoor temperature thermistor...

Страница 132: ...t exchanger thermistor exceeds the limit Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above F The error is cleared when the temper...

Страница 133: ...connector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Replace the electronic expansion valve or coil Replace the PCB Change the air outlet grille position Clean the heat...

Страница 134: ...nnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 29 Refer to P 152 Caution Be sure to turn off the power swi...

Страница 135: ...or itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 29 Refer to P 152 Caution Be sure to turn off the power switch before conne...

Страница 136: ...Decision Conditions The compressor running frequency is below 52 Hz The input current is also below 0 5 A If this error repeats 4 times the system is shut down The error counter is reset if this or an...

Страница 137: ...n Decision Conditions The compressor running frequency is below 55 Hz and the CT input is below 0 1 V The input current is also below 1 25 A If this error repeats 4 times the system is shut down The e...

Страница 138: ...ff the power Disconnect the harnesses U V and W Turn off the power and reconnect the above harnesses Then turn on the power again and get the system restarted Compressor running DC380 30V Any LED off...

Страница 139: ...e Malfunction Decision Conditions The thermistor input is above 4 96 V or below 0 04 V with the power on Error J3 is judged if the discharge pipe thermistor temperature is lower than the heat exchange...

Страница 140: ...power again Normal Reconnect Reconnect Replace defective one s of the following thermistors Radiation fin thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Outdoor air thermistor...

Страница 141: ...he radiation fin thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 176 F 80 C Reset is made when the temperature drops b...

Страница 142: ...58 F 70 C R10493 YES Fin thermistor NO Slightly dirty Malfunctioning Too dirty Functioning NO YES NO YES Turn off the power and turn it on again Check the radiation fin temperature Check No 07 Check t...

Страница 143: ...he radiation fin temperature with the compressor on is above 194 F 90 C If a radiation fin temperature rise takes place 4 times successively the system is shut down The error counter is reset if this...

Страница 144: ...n fin temperature Check No 07 Check the installation condition Radiation fin dirty Above 194 F 90 C Thermistor as specified in its characteristic chart Check No 06 Check the thermistor resistance Chec...

Страница 145: ...he compressor is running An output overcurrent input is fed from the output overcurrent detection circuit to the microcomputer The system is shut down if the error occurs 255 times Clearing condition...

Страница 146: ...system is interrupted by an output overcurrent check the wires again Check No 08 Check the discharge pressure Check No 13 Check the power transistor Check No 07 Check the installation condition Check...

Страница 147: ...is running An output overcurrent input is fed from the output overcurrent detection circuit to the microcomputer The system is shut down if the error occurs 16 times Clearing condition Continuous run...

Страница 148: ...rupted by an output overcurrent check the wires again Check No 08 Check the discharge pressure Check No 13 Check the power transistor Check No 07 Check the installation condition Check with the invert...

Страница 149: ...ept on for a certain time Note The values are different from model to model Refrigerant shortage detection III When the difference of the temperature is smaller than it is regarded as refrigerant shor...

Страница 150: ...nic expansion valve functioning Replace in position Open the stop valve Repair the pipe flare or replace the square union Check the power transistor harness for looseness Correct it as required Also r...

Страница 151: ...d discharge temperature Malfunction Decision Conditions Refrigerant shortage detection I Input current A Hz x Compressor running frequency Voltage However when the status of running frequency 55 Hz is...

Страница 152: ...ce in position Open the stop valve Repair the pipe flare or replace the square union Check the power transistor harness for looseness Correct it as required Also replace cracked pipe if any Check the...

Страница 153: ...upposed Causes Supply voltage not as specified Over voltage detection circuit defective PAM control part s defective Troubleshooting Note If the model does not have SPM replace the outdoor unit PCB Co...

Страница 154: ...ltage detection circuit defective PAM control part s defective Short circuit inside the fan motor winding Troubleshooting Correct the power supply Check for such factors for an extended period of time...

Страница 155: ...ect that connector and check the continuity using a tester Check the continuity between pins 1 3 and 6 and between pins 2 4 and 5 If there is no continuity between the pins the EV coil is faulty 4 If...

Страница 156: ...it PCB Replace the four way valve coil Replace the four way valve Four way valve coil resistance at 3 0 5 S80 voltage at DC 220 240 V with compressor on Fig 1 R0286 NO YES YES NO Fig 1 Voltage at S80...

Страница 157: ...PCB and measure the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R77 F 20k B 3950 Tempera...

Страница 158: ...air temperature Change the position of the air discharge grille or the installation location Change the position of the air discharge grille or the installation location Change the installation locati...

Страница 159: ...inal board and check the waveform disturbance Check to see if the power supply waveform is a sine wave Fig 1 Check to see if there is waveform disturbance near the zero cross sections circled in Fig 2...

Страница 160: ...g to the drawing of the model in question Be careful never to touch any live parts Refrigerant system check Check for refrigerant leakage See the section on refrigerant shortage detection R8314 YES NO...

Страница 161: ...r 5 1 12 Main Circuit Electrolytic Capacitor Check Check No 15 Checking the main circuit electrolytic capacitor Never touch any live parts for at least 10 minutes after turning off the circuit breaker...

Страница 162: ...rotated 1 turn by hand When the fuse is melted check the outdoor fan motor for proper function If NG in step 2 Defective PCB Replace the PCB If NG in step 4 Defective Hall IC Replace the outdoor fan m...

Страница 163: ...resistance between pins at both ends of DB1 If the resistance is or less than 1 k the main circuit short terminal of the tester in case of digital terminal terminal of the tester in case of digital te...

Страница 164: ...ns 184 2 4 Removal of Electrical Box PCB Swing Motor 187 2 5 Removal of Heat Exchanger 195 2 6 Removal of Fan Rotor Fan Motor 198 3 RXS09 12DAVJU RX09 12FAVJU 201 3 1 Removal of Panels and Fan Motor 2...

Страница 165: ...re after turning off all power supplies before disassembly work Step Procedure Points 1 External features If ON OFF button is pressed for 5 seconds a forced cooling operation is carried out for approx...

Страница 166: ...nsert air filter along the guide 3 Opening and shutting front panel 1 Hook a finger onto the projection part provided on the both sides of the unit s panel and open up the panel to the position higher...

Страница 167: ...9 12HVJU 156 Removal Procedure 2 Remove front panel from the unit 3 When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel Step...

Страница 168: ...rning Be sure to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Opening and closing of service cover 1 Remove a service cover mounting scr...

Страница 169: ...quipped in the existing models are not provided 2 Release the 2 hooks on the upper part In case that the hooks are not pressed from above remove the front panel and then remove the grille while pushin...

Страница 170: ...Removal Procedure 159 3 The front grille can be removed in a manner to pull out the upper part forward and lift up the lower part When restoring the grille Make sure whether each hook is set as it wa...

Страница 171: ...more after turning off all power supplies before disassembly work Step Procedure Points 1 Removal of the horizontal blade 1 Lift horizontal blade to open position Screw stoppers inside the flap which...

Страница 172: ...the blade to the tip while rotating it 2 Restore the 2 fixed parts of the horizontal blade onto the hook 2 Removal of the vertical blade 1 Release the vertical blade s joint from the fixed plate 2 Re...

Страница 173: ...assembly work Step Procedure Points Remove the front grille 1 Removal of the electrical box 1 2 3 4 Disconnect the connection wires Disconnect connectors S1 and S7 of fan motor Disconnect one connecto...

Страница 174: ...S04 904 Removal Procedure 163 5 Remove the one screw on the terminal board The electrical box can be removed instead of disengaging the terminal board 6 Remove the one screw on the electrical box Step...

Страница 175: ...SiUS04 904 FTXS09 12HVJU 164 Removal Procedure 7 Pull up the electrical box forward to remove A hook is provided in the back Step Procedure Points...

Страница 176: ...emoval of the PCBs 1 Remove the shelter 2 Release the front plate of the electrical box Release the knobs by pushing the 2 hooks at the top and the bottom 3 Sliding to the left the front part of the e...

Страница 177: ...SiUS04 904 FTXS09 12HVJU 166 Removal Procedure 4 Release the 4 knobs on the back of the signal receiver PCB 5 Signal receiver PCB Step Procedure Points Signal receiver PCB...

Страница 178: ...1 To remove the swing motor assembly remove the 2 screws Manual adjustment for the vertical blades Provide a supporter so that the joint link does not drop off in case the horizontal blade assembly is...

Страница 179: ...igerant R 410A into refrigerant cycle Contaminating of with air or other gas causes abnormal high pressure in refrigerating cycle and this results in pipe breakage or personal injurie Pay attention so...

Страница 180: ...Removal Procedure 169 4 Release the hooks of the piping fixture on the back by a flat screwdriver 5 Pull the auxiliary pipe forward to an angle of 10 to 20 degrees Be careful to prevent pipe deformati...

Страница 181: ...symmetrically placed in the right and the left Lifting the heatexchanger slightly upward to the right the left hook disengages easily 7 Lift and remove the heat exchanger Caution When removing or rei...

Страница 182: ...it 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Disconnect the drain hose The drain pan is integrated with the bottom plate 2 Pull out the dr...

Страница 183: ...SiUS04 904 FTXS09 12HVJU 172 Removal Procedure 4 Push the drain plug into the right with an Allen wrench Push it into the inner part firmly Step Procedure Points...

Страница 184: ...Removal of Fan Rotor and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points Remove the heat exchanger 1...

Страница 185: ...SiUS04 904 FTXS09 12HVJU 174 Removal Procedure 2 Release hook 3 Remove the hexagon head set screw on the fan rotor Step Procedure Points...

Страница 186: ...FTXS09 12HVJU SiUS04 904 Removal Procedure 175 4 Remove the motor and fan rotor 5 Remove the one screw on the left side plate Step Procedure Points...

Страница 187: ...JU 176 Removal Procedure 6 Release the hook on the back 7 Since the fan bearing is made of rubber firmly push it off from the inside The bearing can be removed just as the left side plate is attached...

Страница 188: ...inutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Features When the signal receiver catches a signal from the remote controller it produces a beep and...

Страница 189: ...htly by the center knob and then pull it out downwards The right and left filters are interchangeable Insert the air filters along grooves when installing Set the air filters with displaying FRONT on...

Страница 190: ...val of the air purifying filter with photocatalytic deodorizing function 1 Push up the bottom of an air purifying filter to release the hooks 2 on lower 3 on upper and take the filter out The right an...

Страница 191: ...nel 1 While opening the front panel further than it stops release both axes and remove the front panel Slide the front panel side to side to release each axis Align the right and left axes with groove...

Страница 192: ...ssembly work Step Procedure Points 1 Removal of the service cover 1 Loosen the screw and remove the service cover by the knob No field setting switch is inside it You can remove the front grille witho...

Страница 193: ...oval Procedure 2 Release the 3 hooks on the top of the front grille The front grille has 3 hooks on the center and the both sides of the upper part Refer to the removal procedure in a reverse way when...

Страница 194: ...4 904 Removal Procedure 183 3 Pull the upper part of the front grille out and lift the lower part up and then remove the front grille Make sure that all the hooks are placed securely when reassembling...

Страница 195: ...ll power supplies before disassembly work Step Procedure Points 1 Removal of the horizontal blades 1 Open the horizontal blades It has no fixing screws inside blades though previous models had them 2...

Страница 196: ...rocedure 1 Since key pattern hook is provided rotate the blades and fit it to the right pivot first 2 Fit the blades to the center and left pivots 2 Removal of the vertical blades 1 Release the right...

Страница 197: ...SiUS04 904 FTXS15 18 24HVJU 186 Removal Procedure 3 Pull the vertical blades rightward and remove it Step Procedure Points...

Страница 198: ...al Box PCB Swing Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Removal of the front grille Parts layou...

Страница 199: ...ke care to not to lose the clip for the thermistor 4 Removal of the electrical box 1 Disconnect the 4 connection wirings Loosen the screw and remove the terminal board You can remove the electrical bo...

Страница 200: ...dure 189 3 Disconnect the connectors for swing motor S6 S8 4 Remove the fixing screw of the electrical box 5 Dislocate the electrical box to the left and release the back hook The electrical box has o...

Страница 201: ...moval Procedure 6 Pull the electrical box out toward you Hook the back hook of the electrical box when reassembling 7 Remove the screw on the electrical box Screw M4 16 8 Push the shelter up and relea...

Страница 202: ...upper side and then release the hooks on the lower side Release the hooks on the upper side 10 Cut the clamp 11 The receiver units contain 4 PCBs Remove each PCB with releasing hooks Disconnect every...

Страница 203: ...fore 5 Removal of the control PCB 1 Release the 2 hooks on the lower side and then the 2 hooks on the upper side Remove the control PCB 2 Control PCB indoor unit S1 connector for the fan motor S21 HA...

Страница 204: ...cedure 193 6 Removal of the swing motor for horizontal blades 1 Remove the screw of the swing motor 7 Removal of the swing motor for vertical blades 1 Release the swing axis on the right side Releasin...

Страница 205: ...S04 904 FTXS15 18 24HVJU 194 Removal Procedure 2 Remove the 2 screws and detach the swing motor assembly 3 Remove the 2 screws and remove the swing motor Six hooks hold the assembly Step Procedure Poi...

Страница 206: ...ecified refrigerant R 410A into refrigerant cycle Contaminating of with air or other gas causes abnormal high pressure in refrigerating cycle and this results in pipe breakage or personal injurie Pay...

Страница 207: ...of the indoor unit 1 Detach the indoor unit from the installation plate 3 Removal of the piping fixture 1 Release the hook on the upper side of the piping fixture on the back of the unit 4 Removal of...

Страница 208: ...ks on the right side and release 4 Pull the heat exchanger to the front side and release the hooks completely and then lift it Caution When removing or reinstalling the heat exchanger be sure to wear...

Страница 209: ...more after turning off all power supplies before disassembly work Step Procedure Points 1 Removal of the right side panel 1 Remove the 2 screws You can remove the fan rotor without detaching the right...

Страница 210: ...reassembling the fan rotor provide as much as 3 16 clearance between the side face of the rotor and the bottom frame 2 When reassembling the fan motor align the end of the connector with the height of...

Страница 211: ...04 904 FTXS15 18 24HVJU 200 Removal Procedure 2 Remove the 2 screws and remove the mounting plate for the bearing 3 The bearing is made of rubber Push it inwards firmly and remove it Step Procedure Po...

Страница 212: ...re Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Features Take care not to cut your finger by the fins of the heat exc...

Страница 213: ...unting plate instead of on the cover Remove the 2 screws to remove the drip proof plate When reassembling make sure to fit the 5 hooks 2 Removal of the panels 1 Remove the 2 screws right left and lift...

Страница 214: ...904 Removal Procedure 203 3 Remove the 4 screws of the discharge grille The discharge grille has 4 hooks 4 Remove the 8 screws of the front panel Step Procedure Points DAIKIN INVERTER R10009 R10010 D...

Страница 215: ...fan motor is united with the front panel 3 Removal of the fan motor The screw has clockwise winding 1 Unscrew the washer fitted nut of the outdoor fan with a spanner 2 Remove the outdoor fan Align ma...

Страница 216: ...AVJU SiUS04 904 Removal Procedure 205 3 Cut the clamp 4 Disconnect the fan motor connector S70 5 The illustration shows arrangement of the fan motor lead wire Step Procedure Points R7198 S70 R7199 Fan...

Страница 217: ...ire through the back of the motor when reassembling to prevent getting it entangled with the outdoor fan 7 Remove the 4 screws to remove the fan motor DC fan motor 8 Remove the screw to remove the fan...

Страница 218: ...09 12FAVJU SiUS04 904 Removal Procedure 207 When reassembling fit the lower hook into the bottom frame 4 Removal of the right side panel 1 Remove the 2 screws on the rear side Step Procedure Points R7...

Страница 219: ...2FAVJU 208 Removal Procedure 2 Release the outdoor air thermistor 3 Lift up the guard net to remove 4 Remove the 4 screws on the right side Step Procedure Points R7208 Outdoor air thermistor Guard net...

Страница 220: ...US04 904 Removal Procedure 209 5 Remove the screw and lift the connection port to remove it When reassembling make sure to engage the hook 6 Lift up the right side panel to remove it Step Procedure Po...

Страница 221: ...all power supplies before disassembly work Step Procedure Points Remove the top panel Disconnect the connector for fan motor 1 Removal of the electrical box 1 Disconnect the 2 reactor harnesses 2 Cut...

Страница 222: ...tor for overload protector S40 The positions of connectors on each PCB are different according to the models 5 Disconnect the connector for electronic expansion valve coil S20 6 Disconnect the connect...

Страница 223: ...harge pipe thermistor Be careful not to lose the clip for thermistor 8 Cut the clamp 9 Pull out the heat exchanger thermistor Be careful not to lose the clip Step Procedure Points R0267 Discharge pipe...

Страница 224: ...RXS09 12DAVJU RX09 12FAVJU SiUS04 904 Removal Procedure 213 10 Lift and remove the electrical box Step Procedure Points R7223 Electrical Box...

Страница 225: ...wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points Remove the outer panels Removal of the electrical box 1 Removal of the reactor 1 Remove the...

Страница 226: ...iUS04 904 Removal Procedure 215 2 The partition plate has a hook on the lower side Lift and pull the partition plate to remove When reassembling engage the lower hook with the bottom frame Step Proced...

Страница 227: ...s before disassembly work Step Procedure Points Remove the outer panels Remove the electrical box 1 Removal of the sound blanket 1 Untie the strings and open the sound blanket 2 Lift and remove the so...

Страница 228: ...RXS09 12DAVJU RX09 12FAVJU SiUS04 904 Removal Procedure 217 4 Pull the sound blanket inner out The sound blanket s piping ports are easily torn so remove it carefully Step Procedure Points R7232...

Страница 229: ...pplies before disassembly work Step Procedure Points 1 Removal of the peripheries 1 Remove the electronic expansion valve coil 2 Remove the terminal cover Remove the four way valve and the sheets of p...

Страница 230: ...valve with a wet cloth Splash water over the cloth to keep it from becoming too hot keep it below 248 F 120 C In pulling the pipes be careful not to over tighten them with pliers to avoid deforming t...

Страница 231: ...efrigerant gas may produce toxic gas if it comes in contact with fire Exposure to this gas could cause severe injury or death Provide a protective sheet or a steel plate so that the brazing flame cann...

Страница 232: ...f the compressor Before working make sure that the the circuit is empty of refrigerant Be sure to apply nitrogen replacement when heating up the brazed part In case of the difficulty with gas brazing...

Страница 233: ...SiUS04 904 RXS09 12DAVJU RX09 12FAVJU 222 Removal Procedure 3 Heat up the brazed part of the suction side and disconnect 4 Lift the compressor up and remove it R7253 R7254...

Страница 234: ...efore disassembly work Step Procedure Points 1 Removal of the PCB You can remove the PCB when you disconnect the read wires on the terminal board without removing the electrical box PbF Pb free brazin...

Страница 235: ...XS09 12DAVJU RX09 12FAVJU 224 Removal Procedure 4 Remove the 4 screws The positions of screws are different according to the models 5 Release the 3 hooks on the upper side Step Procedure Points R7258...

Страница 236: ...al Procedure 225 6 Lift and pull out the PCB 7 Feature of the PCB S70 fan motor S80 four way valve S90 thermistor outdoor air heat exchanger discharge pipe See page 19 for details Step Procedure Point...

Страница 237: ...al of Panels and Plates Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Removal of the panels and plates Take...

Страница 238: ...U SiUS04 904 Removal Procedure 227 2 Remove the 4 screws and remove the discharge grille The front grille has 4 hooks Slide the discharge grille upward and remove it 3 Remove the 6 screws of the front...

Страница 239: ...e 4 Push the front panel and release the hook Lift the clamp plate and remove it 5 Release the right side hook and then the left side hooks Remove the front panel Lift the front panel and remove it wh...

Страница 240: ...4 904 Removal Procedure 229 Lift the front panel and undo the left side hooks Fit the left side of the front panel first when installing 2 Removal of the stop valve cover 1 Remove the screw of the sto...

Страница 241: ...op valve cover to release the hooks and remove it The stop valve cover has 6 hooks The US models have a drip proof plate on the right side panel instead of on the stop valve cover Remove the 2 screws...

Страница 242: ...mbly work Step Procedure Points Remove the top panel and the front panel 1 Removal of the electrical box cover This procedure is not necessary if removing the outdoor fan only 1 Remove the screw on th...

Страница 243: ...RXS15 18 24DVJU RX15 18 24FVJU 232 Removal Procedure 2 Removal of the fan motor 1 Disconnect the connector for fan motor S70 2 The illustration shows arrangement of the fan motor lead wire Step Proced...

Страница 244: ...04 Removal Procedure 233 3 Remove the washer fitted nut of the outdoor fan with a spanner Align mark of the outdoor fan with D cut section of the motor shaft when reassembling 4 Remove the 4 screws fr...

Страница 245: ...5 18 24DVJU RX15 18 24FVJU 234 Removal Procedure 5 Pull the fan motor out Put the lead wire through the back of the motor when reassembling so as not to be entangled with the outdoor fan Step Procedur...

Страница 246: ...urning off all power supplies before disassembly work Step Procedure Points Remove the top panel and the front panel 1 Removal of the right side panel Terminal strip number black 1 power supply white...

Страница 247: ...VJU RX15 18 24FVJU 236 Removal Procedure 3 Remove the fixing screw of the electrical box Insert the 2 hooks of the lower part and the one hook of the upper back when reassembling Step Procedure Points...

Страница 248: ...rd Open the cable way board 3 Release the harnesses from the power supply PCB HL black to the terminal strip HE2 yellow green to the terminal strip ground HAC1 black from the control PCB AC1 HE1 yello...

Страница 249: ...of the front side S20 electronic expansion valve S40 overload protector S80 four way valve S90 thermistors discharge pipe outdoor air heat exchanger 5 Remove the screw of the control PCB 6 Release the...

Страница 250: ...opening the control PCB S10 to the terminal strip AC2 to the terminal strip 8 Disconnect the connectors S51 to the service monitor PCB S101 to the service monitor PCB 9 Disconnect the connectors S31...

Страница 251: ...4 of the SPM S32 to CN11 of the SPM S33 to S34 of the MID S40 overload protector S51 to S52 of the service monitor PCB S71 to S72 of the MID S80 four way valve S90 thermistors discharge pipe outdoor a...

Страница 252: ...RXS15 18 24DVJU RX15 18 24FVJU SiUS04 904 Removal Procedure 241 12 Release the clamp with pliers 13 Release the reactor harness Step Procedure Points R2715...

Страница 253: ...4 RXS15 18 24DVJU RX15 18 24FVJU 242 Removal Procedure 14 Pull the clamp and draw the thermistor harness out from the back of the electrical box 15 Remove the screw of the electrical box Step Procedur...

Страница 254: ...RXS15 18 24DVJU RX15 18 24FVJU SiUS04 904 Removal Procedure 243 16 Release the clamp of the four way valve harness 17 Lift the electrical box and remove it Step Procedure Points R2720...

Страница 255: ...to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points Removal of the electrical box 1 Remove the partition plate 1 Release the clamp with pliers...

Страница 256: ...XS15 18 24DVJU RX15 18 24FVJU SiUS04 904 Removal Procedure 245 3 Lift the partition plate and remove it 4 Remove the screw Slide the reactor and remove it from the partition plate Step Procedure Point...

Страница 257: ...Be sure to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Release the harness of each thermistor 2 Release the discharge pipe thermistor P...

Страница 258: ...utters Release the outdoor heat exchanger thermistor Clamps should be always available Fix it as it was before 4 Remove the sound blanket side outer The outer side sound blanket s piping ports are eas...

Страница 259: ...DVJU RX15 18 24FVJU 248 Removal Procedure 6 Remove the sound blanket top lower 7 Remove the sound blanket side inner The inner side sound blanket s piping ports are easily torn so remove it carefully...

Страница 260: ...non oxidation brazing Braze it quickly when no nitrogen gas can be used 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected...

Страница 261: ...ve the sheets of putty Before working make sure that the refrigerant is empty in the circuit 3 Heat up the 2 brazed parts of the electronic expansion valve and disconnect Be sure to apply nitrogen rep...

Страница 262: ...rning Be sure to wait 10 minutes or more after turning off all power supplies before disassembly work Step Procedure Points 1 Remove the terminal cover 2 Release the lead wires of the compressor Be ca...

Страница 263: ...fire it causes toxic gas Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be careful so as not to burn the compressor terminals or the name plate 5 H...

Страница 264: ...904 Other Considerations 253 Part 8 Other Considerations 1 Other Considerations 254 1 1 Trial Operation 254 1 2 Jumper Settings 255 1 3 Application of Silicon Grease to Power Transistor and Diode Brid...

Страница 265: ...eration with the previous mode when the circuit breaker is restored For Heat pump In cooling mode select the lowest programmable temperature in heating mode select the highest programmable temperature...

Страница 266: ...s remote controller 1 Slide the front cover and take it off 2 Cut the address jumper J4 1 2 2 Jumper Setting 09 12 Class 15 18 24 Class JA ADDRESS ADDRESS CUT EXIST 1 2 JA JB JC Sheller PCB Electric p...

Страница 267: ...tion of the power transistor and the diode bridge Applying the paste should be implemented in accordance with the following instruction Remark There is the possibility of failure with smoke in case of...

Страница 268: ...SiUS04 904 Appendix 257 Part 9 Appendix 1 Piping Diagrams 258 1 1 Indoor Units 258 1 2 Outdoor Units 259 2 Wiring Diagrams 261 2 1 Indoor Units 261 2 2 Outdoor Units 262...

Страница 269: ...EXCHANGER 3 8CuT CROSS FLOW FAN 5 16CuT HEATING M REFRIGERANT FLOW 9 32CuT COOLING 1 4CuT 1 4CuT FIELD PIPING FIELD PIPING INDOOR UNIT FAN MOTOR 4D047158A CuT FIELD PIPING FIELD PIPING 1 4CuT CROSS FL...

Страница 270: ...ER MUFFLER WITH 3 8CuT 1 4CuT VALVE LIQUID STOP VALVE GAS STOP FIELD PIPING FIELD PIPING 3 8CuT 1 4CuT REFRIGERANT FLOW COOLING HEATING 3D047143C 3 8CuT 3 8CuT 9 32CuT 9 32CuT THERMISTOR DISCHARGE PIP...

Страница 271: ...WITH SERVICE PORT MOTOR OPERATED VALVE LIQUID STOP VALVE FIELD PIPING 1 2 CuT FIELD PIPING 1 4 CuT REFRIGERANT FLOW COOLING HEATING 3D047141B OUTDOOR UNIT 1 2CuT 1 2CuT 5 16CuT 5 16CuT 5 16CuT 5 16CuT...

Страница 272: ...BOARD THERMISTOR CONNECTOR OPERATION SWITCH TERMINAL STRIP X1M S1W S1 S36 R1T R2T PCB1 PCB3 M1S M1F 3D033599H CONTROLLER WIRELESS REMOTE PCB4 PCB3 PCB5 INTELLIGENT EYE LED1 H1P R1T SENSOR t S37 S38 LE...

Страница 273: ...Z1C RED 3D046979C V3 SA1 S70 7 1 FU201 3 15A FIELD WIRING GRN YLW 30A FU1 S1W GRN YLW outdoor BRN YLW W U BRN V ORG WHT RED BLU BLU N RED X11A Z2C S2 S4W PCB1 PCB2 PRINTED CIRCUIT BOARD S101 4 S31 ORG...

Страница 274: ...CLEANING EQUIPMENT MARINE TYPE CONTAINER REFRIGERATION UNITS COMPRESSORS AND VALVES Organization DAIKIN INDUSTRIES THAILAND LTD Scope of Registration THE DESIGN DEVELOPMENT AND MANUFACTURE OF AIR CON...

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