Daikin FTXG35CVMBS- User Manual

Si04-402 List of Functions 1 Part 1 Part 1 Part 1 Part 1 List of Functions List of Functions List of Functions List of Functions 1. List of Functions ......................................................................................2

Si04-402 Specifications 3 Part 2 Part 2 Part 2 Part 2 Specifications Specifications Specifications Specifications 1. Specifications ..........................................................................................4

Printed Circuit Board Connector Wiring Diagram Si04-402 8 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram 1.1 Indoor Unit Connectors Note: Other designations 1) S1 Connector for fan motor 2) S21 Connector for centralized control ( HA ) 3) S32 Connecto...

Printed Circuit Board Connector Wiring Diagram Si04-402 10 Printed Circuit Board Connector Wiring Diagram 1.2 Outdoor Unit Connectors Note: Other Designations 1) S10 Connector for filter PCB 2) S11 Connector for control PCB 3) S20 Connector for electronic expansion valve coil 4) S30 Connector for co...

Si04-402 Function and Control 13 Part 4 Part 4 Part 4 Part 4 Function and Control Function and Control Function and Control Function and Control 1. Main Functions ......................................................................................14 1.1 Frequency Principle............................

Main Functions Si04-402 14 Function and Control 1. Main Functions Note: See the list of functions for the functions applicable to different models. 1.1 Frequency Principle Main Control Parameters The compressor is frequency-controlled during normal operation. The target frequency is set by the follo...

Si04-402 Main Functions Function and Control 17 1.3 Operation Starting Control The system carries out the following control at the beginning to conduct every functional parts properly.1. Opening the front panel fully2. Output of the ∆ D signal after the front panel starts moving 3. Opening the flap ...

Main Functions Si04-402 18 Function and Control 1.4 Fan Speed Control for Indoor Units Control Mode The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature. This is done through phase control and hall IC control. For more info...

Si04-402 Main Functions Function and Control 19 1.5 Programme Dry Function Programme dry function removes humidity while preventing the room temperature from lowering.Since the microcomputer controls both the temperature and air flow volume, the temperature adjustment and fan adjustment buttons are ...

Main Functions Si04-402 20 Function and Control 1.6 Automatic Operation Automatic Cooling / Heating Function (Heat Pump Only) When the AUTO mode is selected with the remote controller, the microcomputer automatically determines the operation mode from cooling and heating according to the room temper...

Si04-402 Main Functions Function and Control 21 1.7 NIGHT SET Mode When the OFF timer is set, the NIGHT SET circuit automatically activates.The NIGHT SET circuit maintains the airflow setting made by users. NIGHT SET Circuit The NIGHT SET circuit continues heating or cooling the room at the set temp...

Main Functions Si04-402 22 Function and Control 1.8 INTELLIGENT EYE This is the function that detects existence of humans in the room by a human motion sensor (INTELLIGENT EYE) and reduces the capacity when there is no human in the room in order to save electricity. Processing 1. Detection method by...

Si04-402 Main Functions Function and Control 23 „ Since the set temperature is shifted by 2°C higher for 40 minutes, compressor speed becomes low and can realize energy saving operation. But as thermostat is prone to be off by the fact that the set temperature has been shifted, the thermostat-off ac...

Main Functions Si04-402 24 Function and Control 1.10 Other Functions 1.10.1 Hot Start Function Heat Pump Only In order to prevent the cold air blast that normally comes when heating is started, the temperature of the heat exchanger of the indoor unit is detected, and either the air flow is stopped o...

Si04-402 Function of Thermistor Function and Control 25 2. Function of Thermistor 2.1 Heat Pump Model A Outdoor Heat Exchanger Thermistor (DCB) 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature. Set a target discharge temperature depending on the outdoor a...

Control Specification Si04-402 26 Function and Control 3. Control Specification 3.1 Mode Hierarchy Outline There are two modes; the mode selected in user’s place (normal air conditioning mode) and forced operation mode for installation and providing service. Detail 1. For heat pump model There are f...

Si04-402 Control Specification Function and Control 27 3.2 Frequency Control Outline Frequency will be determined according to the difference between room and set temperature. The function is explained as follows.1. How to determine frequency.2. Frequency command from an indoor unit. (The difference...

Si04-402 Control Specification Function and Control 29 3.3.2 Four Way Valve Switching Outline of Heating Operation Heat Pump Only During the heating operation current must be conducted and during cooling and defrosting current must not be conducted. In order to eliminate the switching sound (as the ...

Control Specification Si04-402 30 Function and Control 3.4 Discharge Pipe Control Outline The discharge pipe temperature is used as the compressor's internal temperature. If the discharge pipe temperature rises above a certain level, the operating frequency upper limit is set to keep this temperatur...

Si04-402 Control Specification Function and Control 31 3.6 Freeze-up Protection Control Outline During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent freezing of the indoor heat exchanger. (The signal from the indoor unit must...

Control Specification Si04-402 32 Function and Control 3.8 Fan Control Outline Fan control is carried out according to the following priority.1. Fan control when defrosting2. Fan OFF delay when stopped 3. ON/OFF control when cooling operation4. Fan control when forced operation 5. Fan control in low...

Si04-402 Control Specification Function and Control 33 3.10 Defrost Control Outline Heat Pump Only Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing. Detail Conditions for Startin...

Control Specification Si04-402 34 Function and Control 3.11 Electronic Expansion Valve Control Outline The following items are included in the electronic expansion valve control. Electronic expansion valve is fully closed 1. Electronic expansion valve is fully closed when turning on the power.2. Pre...

Si04-402 Control Specification Function and Control 35 3.11.1 Fully Closing with Power ON Initialize the electronic expansion valve when turning on the power, set the opening position and develop pressure equalizing. 3.11.2 Pressure Equalization Control When the compressor is stopped, open and close...

Control Specification Si04-402 36 Function and Control 3.11.7 Control when frequency is changed When the target discharge pipe temperature control is active, if the target frequency is changed for a specified value in a certain time period, cancel the target discharge pipe temperature control and ch...

Si04-402 Control Specification Function and Control 37 3.12 Malfunctions 3.12.1 Sensor Malfunction Detection Sensor malfunction may occur in the thermistor. Relating to Thermistor Malfunction 1. Outdoor heat exchanger thermistor2. Discharge pipe thermistor3. Fin thermistor4. Outdoor air thermistor 3...

Control Specification Si04-402 38 Function and Control Detail I Judgment by power consumption When an output frequency is exceeds 55 Hz and the input current is less than specified value, the adjustment is made for insufficient gas. II Judgment by discharge pipe temperature When discharge pipe tempe...

Si04-402 System Configuration 39 Part 5 Part 5 Part 5 Part 5 System Configuration System Configuration System Configuration System Configuration 1. System Configuration ............................................................................402. Instruction..........................................

System Configuration Si04-402 40 System Configuration 1. System Configuration After the installation and test operation of the room air conditioner have been completed, it should be operated and handled as described below. Every user would like to know the correct method of operation of the room air...

Si04-402 Instruction System Configuration 41 2. Instruction 2.1 Safety Precautions 2 • Keep this manual where the operator can easily find them.• Read this manual attentively before starting up the unit.• For safety reason the operator must read the following cautions carefully.• This manual classif...

Instruction Si04-402 42 System Configuration 3 • Do not block air inlets nor outlets. Impaired air flow may result in insufficient performance or trouble.• Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not remove the fan guard.• Do not place anythin...

Si04-402 Instruction System Configuration 43 2.2 Names of Parts 4 ■ Indoor Unit 15 14 18 12 13 17 1 3 4 6 2 11 16 5 7 8 9 10 (With the panel closed)

Si04-402 Instruction System Configuration 45 6 ■ Remote Controller 1. Signal transmitter: • It sends signals to the indoor unit. 2. Display: • It displays the current settings. (In this illustration, each section is shown with all its displays ON for the purpose of explanation.) 3. SENSOR button: fo...

Instruction Si04-402 46 System Configuration 2.3 Preparation before Operation 7 ■ To set the batteries 1. Press with a finger and slide the front cover to take it off. 2. Set two dry batteries (AAA). 3. Set the front cover as before. ATTENTION ■ ■ ■ ■ About batteries • When replacing the batteries, ...

Si04-402 Instruction System Configuration 47 8 ■ To operate the remote controller • To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote controller, such as a curtain, the unit will not operate. • Do not drop the ...

Instruction Si04-402 48 System Configuration 9 ■ To set the clock 1. Press “CLOCK button”. is displayed. blinks. 2. Press “TIMER setting button” to set the clock to the present time. Holding down “ ” or “ ” button rap- idly increases or decreases the time dis-play. 3. Press “CLOCK button”. blinks. N...

Si04-402 Instruction System Configuration 49 2.4 AUTO · DRY · COOL · HEAT · FAN Operation 10 The air conditioner operates with the operation mode of your choice.From the next time on, the air conditioner will operate with the same operation mode. ■ To start operation 1. Press “MODE selector button” ...

Instruction Si04-402 50 System Configuration 11 ■ To change the air flow rate setting 5. Press “FAN setting button”. • Indoor unit quiet operation When the air flow is set to “ ”, the noise from the indoor unit will become quieter. Use this when making the noise quieter. The unit might lose capacity...

Si04-402 Instruction System Configuration 51 2.5 Adjusting the Air Flow Direction 12 You can adjust the air flow direction to increase your comfort. ■ To adjust the horizontal blade (flap) 1. Press “SWING button ”. • “ ” is displayed on the LCD. 2. When the flap has reached the desired position, pre...

Instruction Si04-402 52 System Configuration 13 ■ To start COMFORT AIRFLOW operation 5. Press “COMFORT AIRFLOW button”. The flap orientation will change, preventing air from blowing directly on the occupants of the room. • “ ” is displayed on the LCD. 〈 COOL/DRY 〉 The flap will go up. 〈 HEAT 〉 The f...

Si04-402 Instruction System Configuration 53 2.6 POWERFUL Operation 14 POWERFUL operation quickly maximizes the cooling (heating) effect in any operation mode. You can get the maximum capacity . ■ To start POWERFUL operation 1. Press “POWERFUL button”. • POWERFUL operation ends in 20 minutes. Then t...

Instruction Si04-402 54 System Configuration 2.7 OUTDOOR UNIT SILENT Operation 15 OUTDOOR UNIT SILENT operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during night. ■ To start OUTDOOR UNIT SILENT operation 1...

Si04-402 Instruction System Configuration 55 2.8 INTELLIGENT EYE Operation 16 “INTELLIGENT EYE” is the infrared sensor which detects the human movement. ■ To start INTELLIGENT EYE operation 1. Press “SENSOR button”. • “ ” is displayed on the LCD. ■ To cancel the INTELLIGENT EYE operation 2. Press “S...

Instruction Si04-402 56 System Configuration 17 “INTELLIGENT EYE” is useful for Energy Saving Notes on “INTELLIGENT EYE” CAUTION ■ ■ ■ ■ Energy saving operation • Change the temperature –2 ° C in heating / +2 ° C in cooling / +2 ° C in dry mode from set temperature. • Decrease the air flow rate slig...

Si04-402 Instruction System Configuration 57 2.9 TIMER Operation 18 Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning. You can also use OFF TIMER and ON TIMER in combination. ■ To use OFF TIMER operation • Check that the clock is correct....

Instruction Si04-402 58 System Configuration 19 ■ To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time (page 9.). 1. Press “ON TIMER button”. is displayed. blinks. 2. Press “TIMER Setting button” until the time setting reaches the point you like. • E...

Si04-402 Instruction System Configuration 59 2.10 Care and Cleaning 20 CAUTION ■ Indoor unit, Outdoor unit and Remote controller 1. Wipe them with dry soft cloth. ■ Top front panel 1. Open the top front panel. • Open the top front panel by placing a finger on the panel tab on either side of the top ...

Instruction Si04-402 60 System Configuration 21 1. Open the top front panel. • Open the top front panel by placing a finger on the panel tab on either side of the top front panel and then secure it using the supporting plate on the right. 2. Pull out the air filters. • Push a little upwards the tab ...

Si04-402 Instruction System Configuration 61 22 Check ■ Before a long idle period 1. Operate the “FAN only” for several hours on a fine day to dry out the inside. • Press “MODE” button and select “FAN”operation. • Press “ON/OFF” button and start operation. 2. After operation stops, turn off the brea...

Instruction Si04-402 62 System Configuration 2.11 Troubleshooting 23 The following cases are not air conditioner troubles but have some reasons. You may just continue using it. These cases are not troubles. Case Explanation Operation does not start soon. • When ON/OFF button was pressed soon after o...

Si04-402 Instruction System Configuration 63 24 Please check again before calling a repair person. Check again. Case Check The air conditioner does not operate.(OPERATION lamp is off) • Hasn’t a breaker turned OFF or a fuse blown? • Isn’t it a power failure? • Are batteries set in the remote control...

Instruction Si04-402 64 System Configuration 25 WARNING ■ When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF. Continued operation in an abnormal condition may result in troubles, electric shocks or fire.Consult the service shop where you bought the air cond...

Si04-402 Service Diagnosis 65 Part 6 Part 6 Part 6 Part 6 Service Diagnosis Service Diagnosis Service Diagnosis Service Diagnosis 1. Caution for Diagnosis ............................................................................662. Problem Symptoms and Measures .....................................

Caution for Diagnosis Si04-402 66 Service Diagnosis 1. Caution for Diagnosis The operation lamp flashes when any of the following errors is detected.1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions, disabling equipment operation. 2. When a si...

Si04-402 Problem Symptoms and Measures Service Diagnosis 67 2. Problem Symptoms and Measures Symptom Check Item Details of Measure Reference Page None of the units operates. Check the power supply. Check to make sure that the rated voltage is supplied. — Check the type of the indoor units. Check to ...

Service Check Function Si04-402 68 Service Diagnosis 3. Service Check Function In the ARC433A series remote controller , the temperature display sections on the main unit indicate corresponding codes. Check Method 1 1. When the timer cancel button is held down for 5 seconds, a “ 00 ” indication flas...

Si04-402 Troubleshooting Service Diagnosis 71 4. Troubleshooting 4.1 Error Codes and Description ★ : Displayed only when system-down occurs. Code Indication Description Reference Page System 00 Normal — U0 ★ Insufficient gas 99 U2 Over-voltage detection 101 U4 Signal transmission error (between indo...

Troubleshooting Si04-402 72 Service Diagnosis 4.2 Indoor Unit PCB Abnormality Remote Controller Display A1 Method of Malfunction Detection Evaluation of zero-cross detection of power supply by indoor unit. Malfunction Decision Conditions When there is no zero-cross detection in approximately 10 cont...

Si04-402 Troubleshooting Service Diagnosis 75 4.4 Fan Motor (DC Motor) or Related Abnormality Remote Controller Display A6 Method of Malfunction Detection The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor operation. Malfunction Decision Con...

Si04-402 Troubleshooting Service Diagnosis 77 4.5 Thermistor or Related Abnormality (Indoor Unit) Remote Controller Display C4 , C9 Method of Malfunction Detection The temperatures detected by the thermistors are used to determine thermistor errors. Malfunction Decision Conditions When the thermisto...

Troubleshooting Si04-402 78 Service Diagnosis 4.6 Front Panel Open / Close Fault Remote Controller Display C7 Method of Malfunction Detection Malfunction Decision Conditions „ The system will be shut down when the error occurs twice. SupposedCauses „ Malfunction of the reduction motor „ Malfunction ...

Si04-402 Troubleshooting Service Diagnosis 81 4.9 Unspecified Voltage (between Indoor and Outdoor Unit) Remote Controller Display UA Method of Malfunction Detection The supply power is detected for its requirements (different from separate type and multi type) by the indoor / outdoor transmission si...

Troubleshooting Si04-402 82 Service Diagnosis 4.10 Outdoor Unit PCB Abnormality Remote Controller Display E1 Method of Malfunction Detection „ The proper programme operation of the microcomputer is checked by the programme. „ Checking whether the EEPROM data have the information of the outdoor unit ...

Si04-402 Troubleshooting Service Diagnosis 83 4.11 OL Activation ( Compressor Overload ) Remote Controller Display E5 Method of Malfunction Detection A compressor overload is detected through compressor OL. Malfunction Decision Conditions „ If the compressor OL is activated twice, the system will be...

Troubleshooting Si04-402 84 Service Diagnosis 4.12 Compressor Lock Remote Controller Display E6 Method of Malfunction Detection A compressor lock is detected by checking the compressor running condition through the position detection circuit. Malfunction Decision Conditions „ The system judges the c...

Troubleshooting Si04-402 86 Service Diagnosis 4.14 Input Over Current Detection Remote Controller Display E8 Method of Malfunction Detection An input over-current is detected by checking the input current value with the compressor running. Malfunction Decision Conditions „ The following current with...

Si04-402 Troubleshooting Service Diagnosis 87 4.15 Four Way Valve Abnormality Remote Controller Display EA Method of Malfunction Detection The indoor air temperature thermistor, the indoor unit heat exchanger thermistor, the outdoor temperature thermistor and the outdoor unit heat exchanger thermist...

Si04-402 Troubleshooting Service Diagnosis 89 4.16 Discharge Pipe Temperature Control Remote Controller Display F3 Method of Malfunction Detection The discharge pipe temperature control (stop, frequency drooping, etc.) is checked with the temperature being detected by the discharge pipe thermistor. ...

Troubleshooting Si04-402 90 Service Diagnosis 4.17 High Pressure Control in Cooling Remote Controller Display F6 Method of Malfunction Detection High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the temperature being sensed by the heat exchanger thermistor exceed...

Troubleshooting Si04-402 92 Service Diagnosis 4.18 Sensor Abnormality around Compressor System Remote Controller Display H0 Method of Malfunction Detection Detecting by the valve of direct current before the compressor starts up. Malfunction Decision Conditions „ When the value of direct current bef...

Si04-402 Troubleshooting Service Diagnosis 93 4.19 Position Sensor Abnormality Remote Controller Display H6 Method of Malfunction Detection A compressor startup failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Decision Conditions „ ...

Troubleshooting Si04-402 94 Service Diagnosis 4.20 DC Voltage / Current Sensor Abnormality Remote Controller Display H8 Method of Malfunction Detection Detecting abnormality of the DC sensor by the running frequency of compressor and by the input current multiplied DC voltage and current. Malfunctio...

Si04-402 Troubleshooting Service Diagnosis 95 4.21 Thermistor or Related Abnormality (Outdoor Unit) Remote Controller Display J3, J6, H9 Method of Malfunction Detection This type of error is detected by checking the thermistor input voltage to the microcomputer.[A thermistor error is detected by che...

Si04-402 Troubleshooting Service Diagnosis 97 4.22 Output Over Current Detection Remote Controller Display L5 Method of Malfunction Detection An output over-current is detected by checking the current that flows in the inverter DC section. Malfunction Decision Conditions „ A position signal error oc...

Si04-402 Troubleshooting Service Diagnosis 99 4.23 Insufficient Gas Remote Controller Display U0 Method of Malfunction Detection Gas shortage detection I : A gas shortage is detected by checking the compressor running frequency.Gas shortage detection II : A gas shortage is detected by checking the d...

Si04-402 Troubleshooting Service Diagnosis 101 4.24 Over-voltage Detection Remote Controller Display U2 Method of Malfunction Detection An abnormal voltage rise is detected by checking the specified over-voltage detection circuit. Malfunction Decision Conditions „ An over-voltage signal is fed from ...

Check Si04-402 102 Service Diagnosis 5. Check 5.1 How to Check 5.1.1 Fan Motor Connector Output Check Check No.01 1. Check connector connection.2. Check motor power supply voltage output (pins 4-7).3. Check motor control voltage (pins 4-3).4. Check rotation command voltage output (pins 4-2).5. Check...

Si04-402 Check Service Diagnosis 103 5.1.3 Four Way Valve Performance Check Check No.5 Turn off the power and turn it on again. Start the heating-mode run. Replace the outdoor unit PCB. Replace the four way valve coil. Replace the four way valve. (R3047) NO ∗ Four way valve coil Cooling / dry : No c...

Check Si04-402 104 Service Diagnosis 5.1.4 Thermistor Resistance Check Check No.6 Remove the connectors of the thermistors on the PCB, and measure the resistance of each thermistor using tester.The relationship between normal temperature and resistance is shown in the graph and the table below. Ther...

Si04-402 Check Service Diagnosis 105 5.1.5 Installation Condition Check Check No.7 Installation condition check Normal Change the position of the air discharge grille or the installation location. Change the position of the air discharge grille or the installation location. Clean the heat exchanger....

Check Si04-402 106 Service Diagnosis 5.1.6 Discharge Pressure Check Check No.8 5.1.7 Outdoor Unit Fan System Check (With DC Motor) Check No.9 Discharge pressure check Replace compessor. Open the stop valve. Replace the pipe installed at the site. Clean. Replace the compressor. (R1443) YES YES YES NO...

Si04-402 Check Service Diagnosis 107 5.1.8 Power Supply Waveforms Check Check No.10 Measure the power supply waveform between pins 1 and 3 on the terminal 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 wavefor...

Check Si04-402 108 Service Diagnosis 5.1.10 Power Transistor Check Check No.13 Note: Check to make sure that the voltage between the terminal of Power transistor (+) and (-) is approx. 0 volt before checking power transistor. < Measuring method >Disconnect the compressor harness connector from...

Si04-402 Removal Procedure 109 Part 7 Part 7 Part 7 Part 7 Removal Procedure Removal Procedure Removal Procedure Removal Procedure 1. Indoor Unit...........................................................................................110 1.1 Removal of Air Filter .....................................

Indoor Unit Si04-402 110 Removal Procedure 1. Indoor Unit 1.1 Removal of Air Filter Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Features „ When the signal receiver catches a signal from the remote contr...

Indoor Unit Si04-402 112 Removal Procedure 1.2 Removal of Front Grille Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the front panel. „ Start the removal procedure of front grille when the panels a...

Indoor Unit Si04-402 118 Removal Procedure 1.3 Removal of Assembly of Front Panel Mechanism Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the front grille. 1. Remove the assembly of front panal mech...

Indoor Unit Si04-402 122 Removal Procedure 1.4 Removal of Lamp Cover Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the front grille. 1. Remove the lamp cover. 1 Release the 2 hooks carefully. 2 Rele...

Si04-402 Indoor Unit Removal Procedure 123 1.5 Removal of Horizontal Blade Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the horizontal blade. „ The horizontal blade is single. „ Installation proce...

Indoor Unit Si04-402 124 Removal Procedure 1.6 Removal of Reduction Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the front grille. 1. Remove the assembly of reduction motor. 1 Loosen the scre...

Si04-402 Indoor Unit Removal Procedure 127 1.7 Removal of Outlet Grille Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the front grille. „ Remove the assembly of the reduction motor. 1. Remove the ou...

Indoor Unit Si04-402 128 Removal Procedure 1.8 Removal of Vertical Blades and Swing Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the assembly of the outlet grille. 1. Remove the vertical blad...

Indoor Unit Si04-402 132 Removal Procedure 1.9 Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the front grille. „ Discharge the static electricity from your body before touc...

Indoor Unit Si04-402 144 Removal Procedure 1.11 Removal of Heat Exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the electrical box. „ You can detach the indoor unit without removing the asse...

Si04-402 Indoor Unit Removal Procedure 147 1.12 Removal of Fan Rotor and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the right side plate. 1 Loosen the 2 screws. 2 Remove the right side...

Outdoor Unit Si04-402 150 Removal Procedure 2. Outdoor Unit 2.1 Removal of Panels and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Features „ Take care not to cut your finger by the fins of the...

Si04-402 Outdoor Unit Removal Procedure 159 2.3 Removal of Reactor and Partition Plate Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the outer panels. „ Remove the electrical box. 1. Remove the reac...

Si04-402 Outdoor Unit Removal Procedure 161 2.4 Removal of Sound Blanket Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points „ Remove the outer panels. „ Remove the electrical box. 1. Remove the sound blanket. 1 U...

Si04-402 Outdoor Unit Removal Procedure 163 2.5 Removal of Four Way Valve Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the peripheries. „ Remove the four way valve and the sheets of putty so as no...

Si04-402 Outdoor Unit Removal Procedure 165 2.6 Removal of Compressor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the compressor. 1 Unscrew the nut of the compressor. „ Before working, make sure ...

Si04-402 Outdoor Unit Removal Procedure 167 2.7 Removal of PCB Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the PCB. „ You can remove the PCB when you disconnect the read wires on the terminal boa...

Others Si04-402 172 Others 1. Others 1.1 Test Run from the Remote Controller For Heat pump In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature. „ Trial operation may be disabled in either mode depending on the room temperature. „ ...

Si04-402 Others Others 173 1.2 Jumper Settings 1.2.1 When Two Units are Installed in One Room When two indoor units are installed in one room, the two wireless remote controllers can be set for different addresses. How to set the different addresses „ Control PCB of the indoor unit (1) Remove the fr...

Si04-402 Appendix 175 Part 9 Part 9 Part 9 Part 9 Appendix Appendix Appendix Appendix 1. Piping Diagrams ..................................................................................1762. Wiring Diagrams..................................................................................177

Piping Diagrams Si04-402 176 Appendix 1. Piping Diagrams FTXG25/35CVMBW(S), ATXG25/35CVMB RXG25/35CVMB, ARXG25/35CVMB FIELD PIPING FIELD PIPING (6.4CuT) (9.5CuT) 7.0CuT CROSS FLOW FAN REFRIGERANT FLOW FAN MOTOR ON HEAT EXCH. THERMISTOR M INDOOR UNIT HEATING COOLING 7.0CuT 7.0CuT 9.5 CuT HEAT EXCHANG...

Si04-402 Wiring Diagrams Appendix 177 2. Wiring Diagrams FTXG25/35CVMBW(S), ATXG25/35CVMB RXG25/35CVMB, ARXG25/35CVMB PCB3 EYE SENSOR INTELLIGENT- CONTROLLER WIRELESS R1T REMOTE t S36 ˚ S36 PCB1 3 2 1 1 S21 HA S32 PCB2 RECEIVER S2W 1 1 SIGNAL S51 2 BLK WHT S47 S46 1 LED4 RED H4P M1S M ORG YL W LED3 ...

Si04-402 Index i Index Index Index Index Numerics 00 ...........................................................................713-D airflow ..............................................................163-minutes standby ............................................24, 29 A A1 .......................

Si04-402 Drawings & Flow Charts v Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts A ARC433A series ....................................................68 automatic air flow control .......................................18 automatic ope...