Daikin SiENBE07-618_C Service Manual
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Daikin SiENBE07-618_C Service Manual

Daikin SiENBE07-618_C Service Manual

C-series inverter pair duct connected type
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Service
Manual
Inverter Pair
Duct Connected Type C-Series
[Applied Models]
z Inverter Pair: Cooling only
z Inverter Pair: Heat Pump
SiENBE07-618_C

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Summary of Contents for Daikin SiENBE07-618_C

  • Page 1 SiENBE07-618_C Service Manual Inverter Pair Duct Connected Type C-Series [Applied Models] z Inverter Pair: Cooling only z Inverter Pair: Heat Pump...
  • Page 2 SiENBE07-618_C Service Manual Inverter Pair Duct Connected Type C-Series [Applied Models] z Inverter Pair: Cooling only z Inverter Pair: Heat Pump...
  • Page 3 SiENBE07-618_C Inverter Pair Duct Connected Type C-Series Cooling Only Indoor Unit FDKS50CVMB FDKS60CVMB Outdoor Unit RKS50E2(3)V1B RKS50F2V1B RKS50G2V1B RKS60E2(3)V1B RKS60F2(3)V1B Heat Pump Indoor Unit FDXS50CVMB FDXS60CVMB Outdoor Unit RXS50E2(3)V1B RXS50F2V1B RXS50G2V1B RXS60E2(3)V1B RXS60F2(3)V1B Table of Contents...

  • Page 4: Table Of Contents

    SiENBE07-618_C 1. Introduction .....................v 1.1 Safety Cautions ..................v 1.2 Used Icons ....................ix Part 1 List of Functions ..............1 1. Functions....................2 Part 2 Specifications ..............5 1. Specifications ..................6 1.1 Cooling Only.....................6 1.2 Heat Pump ....................9 Part 3 Printed Circuit Board Connector Wiring Diagram ... 12 1.
  • Page 5 SiENBE07-618_C Part 5 Operation Manual ............. 43 1. System Configuration................44 2. Operation Manual..................45 2.1 Remote Control ..................45 2.2 Auto Dry Cool Heat Fan Operation ............46 2.3 POWERFUL Operation ................48 2.4 OUTDOOR UNIT QUIET Operation............49 2.5 HOME LEAVE Operation ...............50 2.6 TIMER Operation ...................52 Part 6 Service Diagnosis.............
  • Page 6 SiENBE07-618_C Part 7 Removal Procedure ............101 1. Outdoor Unit..................102 1.1 Removal of Outer Panels ..............102 1.2 Removal of Outdoor Fan / Fan Motor...........106 1.3 Removal of Electrical Box ..............110 1.4 Removal of PCB...................115 1.5 Removal of Sound Blanket / Thermistors..........118 1.6 Removal of Four Way Valve..............120...

  • Page 7: Introduction

    SiENBE07-618_C Introduction 1. Introduction Safety Cautions „ Be sure to read the following safety cautions before conducting repair work. Cautions and „ The caution items are classified into “ Warnings Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely.
  • Page 8 Introduction SiENBE07-618_C Warning Be sure to wear a safety helmet, gloves, and a safety belt when working at a high place (more than 2 m). Insufficient safety measures may cause a fall accident. In case of R-410A refrigerant models, be sure to use pipes, flare nuts and tools for the exclusive use of the R-410A refrigerant.
  • Page 9 SiENBE07-618_C Introduction 1.1.2 Cautions Regarding Safety of Users Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools may cause an electrical shock, excessive heat generation or fire.
  • Page 10 Introduction SiENBE07-618_C Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet securely. If the plug has dust or loose connection, it may cause an electrical shock or fire.

  • Page 11: Used Icons

    SiENBE07-618_C Introduction Caution Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 MΩ or higher. Faulty insulation may cause an electrical shock. Be sure to check the drainage of the indoor unit after the repair.
  • Page 12 Introduction SiENBE07-618_C...

  • Page 13: Part 1 List Of Functions

    SiENBE07-618_C Part 1 List of Functions 1. Functions....................2 List of Functions...

  • Page 14: Functions

    Functions SiENBE07-618_C 1. Functions Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air-Purifying Filter — — Function Clean –10 –10 Operation Limit for Cooling (°CDB) Photocatalytic Deodorizing Filter — — ~46H –15 Air-Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB)
  • Page 15 SiENBE07-618_C Functions Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air-Purifying Filter — — Function Clean –10 –10 Operation Limit for Cooling (°CDB) Photocatalytic Deodorizing Filter — — ~46H –15 Air-Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
  • Page 16 Functions SiENBE07-618_C Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air-Purifying Filter — — Function Clean –10 –10 Operation Limit for Cooling (°CDB) Photocatalytic Deodorizing Filter — — ~46H –15 Air-Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...

  • Page 17: Part 2 Specifications

    SiENBE07-618_C Part 2 Specifications 1. Specifications ..................6 1.1 Cooling Only.....................6 1.2 Heat Pump ....................9 Specifications...

  • Page 18: Specifications

    Specifications SiENBE07-618_C 1. Specifications Cooling Only 50 Hz, 230 V Indoor Units FDKS50CVMB FDKS60CVMB Models Outdoor Units RKS50E2(3)V1B RKS60E2(3)V1B 5.0 (2.0 ~ 5.3) 6.0 (2.0 ~ 6.5) Capacity Btu/h 17,100 (6,800 ~ 18,100) 20,500 (6,800 ~ 22,200) Rated (Min. ~ Max.)
  • Page 19 SiENBE07-618_C Specifications 50 Hz, 230 V Indoor Units FDKS50CVMB FDKS60CVMB Models Outdoor Units RKS50F2V1B RKS60F2V1B 5.0 (1.7 ~ 5.3) 6.0 (1.7 ~ 6.5) Capacity Btu/h 17,100 (5,800 ~ 18,100) 20,500 (5,800 ~ 22,200) Rated (Min. ~ Max.) kcal/h 4,300 (1,460 ~ 4,560)
  • Page 20 Specifications SiENBE07-618_C 50 Hz, 230 V Indoor Units FDKS50CVMB FDKS60CVMB Models Outdoor Units RKS50G2V1B RKS60F3V1B 5.0 (1.7 ~ 5.3) 6.0 (1.7 ~ 6.5) Capacity Btu/h 17,100 (5,800 ~ 18,100) 20,500 (5,800 ~ 22,200) Rated (Min. ~ Max.) kcal/h 4,300 (1,460 ~ 4,560)

  • Page 21: Heat Pump

    SiENBE07-618_C Specifications Heat Pump 50 Hz, 230 V Indoor Units FDXS50CVMB FDXS60CVMB Models RXS50E2(3)V1B RXS60E2(3)V1B Outdoor Units Cooling Heating Cooling Heating 5.0 (2.0 ~ 5.3) 5.8 (2.0 ~ 6.0) 6.0 (2.0 ~ 6.5) 7.0 (2.0 ~ 8.0) Capacity Btu/h 17,100 (6,800 ~ 18,100)
  • Page 22 Specifications SiENBE07-618_C 50 Hz, 230 V Indoor Units FDXS50CVMB FDXS60CVMB Models RXS50F2V1B RXS60F2V1B Outdoor Units Cooling Heating Cooling Heating 5.0 (1.7 ~ 5.3) 5.8 (1.7 ~ 6.0) 6.0 (1.7 ~ 6.5) 7.0 (1.7 ~ 8.0) Capacity Btu/h 17,100 (5,800 ~ 18,100)
  • Page 23 SiENBE07-618_C Specifications 50 Hz, 230 V Indoor Units FDXS50CVMB FDXS60CVMB Models RXS50G2V1B RXS60F3V1B Outdoor Units Cooling Heating Cooling Heating 5.0 (1.7 ~ 5.3) 5.8 (1.7 ~ 6.0) 6.0 (1.7 ~ 6.5) 7.0 (1.7 ~ 8.0) Capacity Btu/h 17,100 (5,800 ~ 18,100)

  • Page 24: Part 3 Printed Circuit Board Connector Wiring Diagram

    SiENBE07-618_C Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram........13 1.1 Indoor Unit....................13 1.2 Outdoor Unit ...................15 Printed Circuit Board Connector Wiring Diagram...

  • Page 25: Printed Circuit Board Connector Wiring Diagram

    SiENBE07-618_C Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram Indoor Unit Connectors and PCB(1): Control PCB Other Parts 1) S1 Connector for AC fan motor 2) S7 Connector for AC fan motor (Hall IC) 3) S21...
  • Page 26 Printed Circuit Board Connector Wiring Diagram SiENBE07-618_C PCB Detail PCB (1): Control PCB LED A 2P131149-1 PCB (2): Display PCB LED3 LED2 RTH1 LED1 2P084375-1 Printed Circuit Board Connector Wiring Diagram...

  • Page 27: Outdoor Unit

    SiENBE07-618_C Printed Circuit Board Connector Wiring Diagram Outdoor Unit Connectors and PCB (1): Main PCB Other Parts 1) S10 Connector for terminal board (indoor - outdoor transmission) 2) S20 Connector for electronic expansion valve coil 3) S40 Connector for overload protector...
  • Page 28 Printed Circuit Board Connector Wiring Diagram SiENBE07-618_C PCB Detail PCB (1): Main PCB AC1 E1 (3.15A) (30A) S101 2P169046-1 (3.15A) 2P169046-5 2P169046-7 PCB (2): Service Monitor PCB LED A SW4-B SW4-C S102 3P169059-1 Printed Circuit Board Connector Wiring Diagram...

  • Page 29: Part 4 Function And Control

    SiENBE07-618_C Part 4 Function and Control 1. Main Functions..................18 1.1 Temperature Control ................18 1.2 Frequency Principle................18 1.3 Fan Speed Control for Indoor Units............20 1.4 Program Dry Operation ................21 1.5 Automatic Operation................22 1.6 Thermostat Control.................23 1.7 NIGHT SET Mode ..................24 1.8 HOME LEAVE Operation ...............25 1.9 Inverter POWERFUL Operation .............26...

  • Page 30: Main Functions

    Main Functions SiENBE07-618_C 1. Main Functions Temperature Control Definitions of The definitions of temperatures are classified as following. Temperatures Š Room temperature: temperature of lower part of the room Š Set temperature: temperature set by remote control Š Room thermistor temperature: temperature detected by room temperature thermistor Š...
  • Page 31 SiENBE07-618_C Main Functions Drawing of The following drawing shows a schematic view of the inverter principle: Inverter Refrigerant circulation rate (high) high speed Amount of heat Amount of heat exchanged air (large) exchanged air (large) high f low f Amount of heat...

  • Page 32: Fan Speed Control For Indoor Units

    Main Functions SiENBE07-618_C Fan Speed Control for Indoor Units Outline Phase control and fan speed control contains 9 steps: LLL, LL, SL, L, ML, M, MH, H, and HH. The airflow rate can be automatically controlled depending on the difference between the room thermistor temperature and the target temperature.

  • Page 33: Program Dry Operation

    SiENBE07-618_C Main Functions Program Dry Operation Outline Program dry operation removes humidity while preventing the room temperature from lowering. Since the microcomputer controls both the temperature and airflow rate, the temperature adjustment and fan adjustment buttons are inoperable in this mode.

  • Page 34: Automatic Operation

    Main Functions SiENBE07-618_C Automatic Operation Outline Automatic Cooling / Heating Function When the AUTO mode is selected with the remote control, the microcomputer automatically determines the operation mode as cooling or heating according to the room temperature and the set temperature at start-up, and automatically operates in that mode.

  • Page 35: Thermostat Control

    SiENBE07-618_C Main Functions Thermostat Control Thermostat control is based on the difference between the room thermistor temperature and the target temperature. Thermostat OFF Condition Š The temperature difference is in the zone A. Thermostat ON Condition Š The temperature difference returns to the zone C after being in the zone A.

  • Page 36: Night Set Mode

    Main Functions SiENBE07-618_C NIGHT SET Mode Outline When the OFF timer is set, the NIGHT SET Mode is automatically activated. The NIGHT SET Mode keeps the airflow rate setting. Detail The NIGHT SET Mode continues operation at the target temperature for the first one hour, then automatically raises the target temperature slightly in the case of cooling, or lowers it slightly in the case of heating.

  • Page 37: Home Leave Operation

    SiENBE07-618_C Main Functions HOME LEAVE Operation Outline HOME LEAVE operation is a function that allows you to record your favorite set temperature and airflow rate. You can start your favorite operation mode simply by pressing the [HOME LEAVE] button on the remote control.

  • Page 38: Inverter Powerful Operation

    Main Functions SiENBE07-618_C Inverter POWERFUL Operation Outline In order to exploit the cooling and heating capacity to full extent, operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency. Detail When POWERFUL button is pressed, the fan speed and target temperature are converted to the following states for 20 minutes.

  • Page 39: Other Functions

    SiENBE07-618_C Main Functions 1.10 Other Functions 1.10.1 Hot-Start Function In order to prevent the cold air blast that normally comes when heating operation is started, the temperature of the indoor heat exchanger is detected, and either the airflow is stopped or is made very weak thereby carrying out comfortable heating of the room.

  • Page 40: Function Of Thermistor

    Function of Thermistor SiENBE07-618_C 2. Function of Thermistor Four way valve Compressor (R11582) A Outdoor Heat 1. The outdoor heat exchanger thermistor is used for controlling target discharge pipe temperature. The system sets the target discharge pipe temperature according to the...

  • Page 41: Control Specification

    SiENBE07-618_C Control Specification 3. Control Specification Mode Hierarchy Outline There are two modes; the one is the normal operation mode and the other is the forced operation mode for installation and providing service. Detail For Cooling Only Model There are following modes; stop and cooling (including drying).

  • Page 42: Frequency Control

    Control Specification SiENBE07-618_C Frequency Control Outline Frequency is determined according to the difference between the room thermistor temperature and the target temperature. The function is explained as follows. 1. How to determine frequency 2. Frequency command from the indoor unit (Difference between the room thermistor temperature and the target temperature) 3.
  • Page 43 SiENBE07-618_C Control Specification 2. Determine upper limit frequency Š The minimum value is set as an upper limit frequency among the frequency upper limits of the following functions: Compressor protection, input current, discharge pipe temperature, heating peak-cut, freeze- up protection, defrost.

  • Page 44: Controls At Mode Changing / Start-Up

    Control Specification SiENBE07-618_C Controls at Mode Changing / Start-up 3.3.1 Preheating Operation Outline The inverter operation in open phase starts with the conditions of the outdoor temperature, the discharge pipe temperature, and the radiation fin temperature (internal temperature of PM1).

  • Page 45: Discharge Pipe Temperature Control

    SiENBE07-618_C Control Specification 3.3.4 3-minute Standby Turning on the compressor is prohibited for 3 minutes after turning it off. (Except when defrosting.) 3.3.5 Compressor Protection Function When turning the compressor from OFF to ON, the upper limit of frequency is set as follows.

  • Page 46: Input Current Control

    Control Specification SiENBE07-618_C Input Current Control Outline The microcomputer calculates the input current during the compressor is running, and sets the frequency upper limit from the input current. In case of heat pump model, this control which is the upper limit control of the frequency takes priority to the lower limit of control of four way valve operation compensation.

  • Page 47: Freeze-Up Protection Control

    SiENBE07-618_C Control Specification Freeze-up Protection Control Outline During cooling operation, the signal sent from the indoor unit controls the operating frequency limitation and prevents freezing of the indoor heat exchanger. (The signal from the indoor unit is divided into zones.) Detail The operating frequency limitation is judged with the indoor heat exchanger temperature.

  • Page 48: Outdoor Fan Control

    Control Specification SiENBE07-618_C Outdoor Fan Control 1. Fan OFF delay when stopped The outdoor fan is turned OFF 60 seconds after the compressor stops. 2. Fan ON control to cool down the electrical box The outdoor fan is turned ON when the electrical box temperature is high while the compressor is OFF.

  • Page 49: Defrost Control

    SiENBE07-618_C Control Specification 3.10 Defrost Control Outline Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor heat exchanger temperature must be more than a certain value to finish. Detail Conditions for Starting Defrost „ The starting conditions is determined with the outdoor temperature and the outdoor heat exchanger temperature.

  • Page 50: Electronic Expansion Valve Control

    Control Specification SiENBE07-618_C 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. Pressure equalizing control Open Control 1.
  • Page 51 SiENBE07-618_C Control Specification 3.11.1 Fully Closing with Power ON The electronic expansion valve is initialized when turning on the power. The opening position is set and the pressure equalization is developed. 3.11.2 Pressure Equalization Control When the compressor is stopped, the pressure equalization control is activated. The electronic expansion valve opens, and develops the pressure equalization.
  • Page 52 Control Specification SiENBE07-618_C 3.11.6 Disconnection of the Discharge Pipe Thermistor Outline The disconnection of the discharge pipe thermistor is detected by comparing the discharge pipe temperature with the condensation temperature. If the discharge pipe thermistor is disconnected, the electronic expansion valve opens according to the outdoor temperature and the operation frequency, and operates for a specified time, and then stops.

  • Page 53: Malfunctions

    SiENBE07-618_C Control Specification 3.12 Malfunctions 3.12.1 Sensor Malfunction Detection Sensor malfunction may occur in the thermistor. Relating to Thermistor Malfunction 1. Outdoor heat exchanger thermistor 2. Discharge pipe thermistor 3. Radiation fin thermistor 4. Outdoor temperature thermistor Relating to CT Malfunction...

  • Page 54: Forced Operation Mode

    Control Specification SiENBE07-618_C 3.13 Forced Operation Mode Outline Forced operation mode includes only forced cooling. Detail Item Forced Cooling Conditions 1) The outdoor unit is not abnormal and not in the 3-minute standby mode. 2) The outdoor unit is not operating.

  • Page 55: Part 5 Operation Manual

    SiENBE07-618_C Part 5 Operation Manual 1. System Configuration................44 2. Operation Manual..................45 2.1 Remote Control ..................45 2.2 AUTO · DRY · COOL · HEAT · FAN Operation ........46 2.3 POWERFUL Operation ................48 2.4 OUTDOOR UNIT QUIET Operation............49 2.5 HOME LEAVE Operation ...............50 2.6 TIMER Operation ...................52...

  • Page 56: System Configuration

    System Configuration SiENBE07-618_C 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 conditioner, to check if it is capable of cooling (or heating) well, and to know a clever method of using it.

  • Page 57: Operation Manual

    SiENBE07-618_C Operation Manual 2. Operation Manual Remote Control „ Remote control < ARC433B69, B76 > 1. Signal transmitter: 7. MODE selector button: • It sends signals to the indoor unit. • It selects the operation mode. 2. Display: (AUTO/DRY/COOL/HEAT/FAN) •...

  • Page 58: Auto Dry Cool Heat Fan Operation

    Operation Manual SiENBE07-618_C Auto Dry Cool Heat Fan Operation 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” and select a operation mode.

  • Page 59: To Change The Air Flow Rate Setting

    SiENBE07-618_C Operation Manual „ To change the air flow rate setting 5. Press “FAN setting button”. DRY mode AUTO or COOL or HEAT or FAN mode The air flow rate setting is not variable Five levels of air flow rate setting from “...

  • Page 60: Powerful Operation

    Operation Manual SiENBE07-618_C POWERFUL Operation 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 the system...

  • Page 61: Outdoor Unit Quiet Operation

    SiENBE07-618_C Operation Manual OUTDOOR UNIT QUIET Operation OUTDOOR UNIT QUIET 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 QUIET operation 1.

  • Page 62: Home Leave Operation

    Operation Manual SiENBE07-618_C HOME LEAVE Operation HOME LEAVE operation is a function which allows you to record your preferred temperature and air flow rate settings. „ To start HOME LEAVE operation 1. Press “HOME LEAVE button”. • “ ” is displayed on the LCD.
  • Page 63 SiENBE07-618_C Operation Manual „ What’s the HOME LEAVE operation Is there a set temperature and air flow rate which is most comfortable, a set temperature and air flow rate which you use the most? HOME LEAVE operation is a function that allows you to record your favorite set temperature and air flow rate.

  • Page 64: Timer Operation

    Operation Manual SiENBE07-618_C TIMER Operation 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 •...

  • Page 65: To Use On Timer Operation

    SiENBE07-618_C Operation Manual „ To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time. 1. Press “ON TIMER button”. 6:00 is displayed. • • “ ”blinks. 2. Press “TIMER Setting button” until the time setting reaches the point you like.

  • Page 66: Part 6 Service Diagnosis

    SiENBE07-618_C Part 6 Service Diagnosis 1. Caution for Diagnosis................55 1.1 Troubleshooting with LED ..............55 2. Problem Symptoms and Measures ............56 3. Service Check Function ................57 4. Troubleshooting ..................60 4.1 Error Codes and Description ..............60 4.2 Indoor Unit PCB Abnormality ..............61 4.3 Freeze-up Protection Control or Heating Peak-cut Control....62...

  • Page 67: Caution For Diagnosis

    SiENBE07-618_C Caution for Diagnosis 1. Caution for Diagnosis Troubleshooting with LED Indoor Unit The operation lamp blinks when any of the following errors is detected. 1. When a protection device of the indoor unit or the outdoor unit is activated, or when the thermistor malfunctions.

  • Page 68: Problem Symptoms And Measures

    Problem Symptoms and Measures SiENBE07-618_C 2. Problem Symptoms and Measures Symptom Check Item Details of Measure Reference Page The units does not operate. Check the power supply. Check to make sure that the rated voltage is — supplied. Check the type of the indoor units.

  • Page 69: Service Check Function

    SiENBE07-618_C Service Check Function 3. Service Check Function Check Method 1 1. When the timer cancel button is held down for 5 seconds, “00” indication appears on the temperature display section. TIMER CANCEL button CANCEL TIMER < ARC433 Series >...
  • Page 70 Service Check Function SiENBE07-618_C Check Method 2 1. Press the center of the TEMP button and the MODE button at the same time. (R4272) The figure of the ten’s place blinks. (R4273) s or t button and change the figure until you hear the sound of “beep”...
  • Page 71 SiENBE07-618_C Service Check Function s or t button and change the figure until you hear the sound of “beep”. 5. Press the TEMP (R4277) 6. Diagnose by the sound. H“pi” : The figure of the ten’s place does not accord with the error code.

  • Page 72: Troubleshooting

    Troubleshooting SiENBE07-618_C 4. Troubleshooting Error Codes and Description Reference Error Codes Description Page System Normal — Refrigerant shortage Low-voltage detection or over-voltage detection Signal transmission error (between indoor unit and outdoor unit) Unspecified voltage (between indoor unit and outdoor unit)

  • Page 73: Indoor Unit Pcb Abnormality

    SiENBE07-618_C Troubleshooting Indoor Unit PCB Abnormality Remote Control Display Method of Evaluation of zero-cross detection of power supply by the indoor unit PCB. Malfunction Detection Malfunction There is no zero-cross detection in approximately 10 seconds. Decision Conditions „ Wrong models interconnected Supposed „...

  • Page 74: Freeze-Up Protection Control Or Heating Peak-Cut Control

    Troubleshooting SiENBE07-618_C Freeze-up Protection Control or Heating Peak-cut Control Remote Control Display „ Freeze-up protection control Method of Malfunction During cooling operation, the freeze-up protection control (operation halt) is activated according to the temperature detected by the indoor heat exchanger thermistor.
  • Page 75 SiENBE07-618_C Troubleshooting Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check No.06 Refer to P.96 Check the air passage. Is there any short Provide sufficient air passage. circuit? Check the air filter.

  • Page 76: Fan Motor (Ac Motor) Or Related Abnormality

    Troubleshooting SiENBE07-618_C Fan Motor (AC motor) or Related Abnormality Remote Control Display Method of The rotation speed is detected by the Hall IC while the fan motor is operating. The rotation Malfunction speed determines the error. Detection Malfunction The detected rotation speed does not reach the demanded rotation speed of the target tap, and Decision is less than 50% of the maximum fan motor rotation speed.

  • Page 77: Thermistor Or Related Abnormality (Indoor Unit)

    SiENBE07-618_C Troubleshooting Thermistor or Related Abnormality (Indoor Unit) Remote Control Display Method of The temperatures detected by the thermistors determine thermistor errors. Malfunction Detection Malfunction The thermistor input is more than 4.96 V or less than 0.04 V during compressor operation.

  • Page 78: Signal Transmission Error (Between Indoor Unit And Outdoor Unit)

    Troubleshooting SiENBE07-618_C Signal Transmission Error (between Indoor Unit and Outdoor Unit) Remote Control Display Method of The data received from the outdoor unit checked whether it is normal. Malfunction Detection Malfunction The data sent from the outdoor unit cannot be received normally, or the content of the data is Decision abnormal.

  • Page 79: Unspecified Voltage (Between Indoor Unit And Outdoor Unit)

    SiENBE07-618_C Troubleshooting Unspecified Voltage (between Indoor Unit and Outdoor Unit) Remote Control Display Method of The supply power is detected for its requirements (different from pair type and multi type) by the indoor / outdoor transmission signal. Malfunction Detection Malfunction The pair type and multi type are interconnected.

  • Page 80: Outdoor Unit Pcb Abnormality

    Troubleshooting SiENBE07-618_C Outdoor Unit PCB Abnormality Remote Control Display „ Detection within the program of the microcomputer Method of Malfunction Detection „ The program of the microcomputer is in abnormal running order. Malfunction Decision Conditions „ Defective outdoor unit PCB Supposed „...

  • Page 81: Ol Activation (Compressor Overload)

    SiENBE07-618_C Troubleshooting OL Activation (Compressor Overload) Remote Control Display Method of A compressor overload is detected through compressor OL. Malfunction Detection „ If the error repeats twice, the system is shut down. Malfunction „ Reset condition: Continuous run for about 60 minutes without any other error Decision ∗...

  • Page 82: Compressor Lock

    Troubleshooting SiENBE07-618_C 4.10 Compressor Lock Remote Control Display Method of A compressor lock is detected by checking the compressor running condition through the Malfunction position detection circuit. Detection „ Judging from the current waveform generated when high-frequency voltage is applied to the...

  • Page 83: Dc Fan Lock

    SiENBE07-618_C Troubleshooting 4.11 DC Fan Lock Remote Control Display Method of An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC. Malfunction Detection „ The fan does not start in 30 seconds even when the fan motor is running.

  • Page 84: Input Overcurrent Detection

    Troubleshooting SiENBE07-618_C 4.12 Input Overcurrent Detection Remote Control Display Method of An input overcurrent is detected by checking the input current value being detected by CT with Malfunction the compressor running. Detection „ The following CT input with the compressor running continues for 2.5 seconds.

  • Page 85: Four Way Valve Abnormality

    SiENBE07-618_C Troubleshooting 4.13 Four Way Valve Abnormality Remote Control Display Method of The room temperature thermistor, the indoor heat exchanger thermistor, the outdoor Malfunction temperature thermistor, and the outdoor heat exchanger thermistor are checked if they function within their normal ranges in each operation mode.
  • Page 86 Troubleshooting SiENBE07-618_C Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check No.05 Refer to P.95 Four way valve coil disconnected (loose)? Correct it. Check No.06 Refer to P.96 Harness out of Reconnect it.

  • Page 87: Discharge Pipe Temperature Control

    SiENBE07-618_C Troubleshooting 4.14 Discharge Pipe Temperature Control Remote Control Display Method of An error is determined with the temperature detected by the discharge pipe thermistor. Malfunction Detection „ If the temperature detected by the discharge pipe thermistor rises above Malfunction °C, the...

  • Page 88: High Pressure Control In Cooling

    Troubleshooting SiENBE07-618_C 4.15 High Pressure Control in Cooling Remote Control Display Method of High-pressure control (operation half, frequency drop, etc.) is activated in cooling mode if the Malfunction temperature sensed by the outdoor heat exchanger thermistor exceeds the limit. Detection „...

  • Page 89: Compressor System Sensor Abnormality

    SiENBE07-618_C Troubleshooting 4.16 Compressor System Sensor Abnormality Remote Control Display „ The system checks the supply voltage and the DC voltage before the compressor starts. Method of „ The system checks the compressor current right after the compressor starts. Malfunction Detection „...

  • Page 90: Position Sensor Abnormality

    Troubleshooting SiENBE07-618_C 4.17 Position Sensor Abnormality Remote Control Display Method of A compressor start-up failure is detected by checking the compressor running condition through Malfunction the position detection circuit. Detection „ If the error repeats 8 times, the system is shut down.
  • Page 91 SiENBE07-618_C Troubleshooting Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Turn off the power. Check the power supply voltage. Voltage as rated? Correct the power supply. Check the connection.

  • Page 92: Ct Or Related Abnormality

    Troubleshooting SiENBE07-618_C 4.18 CT or Related Abnormality Remote Control Display Method of A CT or related error is detected by checking the compressor running frequency and CT- Malfunction detected input current. Detection „ The compressor running frequency is more than...
  • Page 93 SiENBE07-618_C Troubleshooting Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check No.12 Turn off the power and turn it on again. Refer to P.99 Start operation. ∗ Running...

  • Page 94: Thermistor Or Related Abnormality (Outdoor Unit)

    Troubleshooting SiENBE07-618_C 4.19 Thermistor or Related Abnormality (Outdoor Unit) H9, J3, J6, P4 Remote Control Display Method of This type of error is detected by checking the thermistor input voltage to the microcomputer. Malfunction A thermistor error is detected by checking the temperature sensed by each thermistor.
  • Page 95 SiENBE07-618_C Troubleshooting Troubleshooting In case of “H9” “J3” “J6” Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check No.06 Refer to P.96 Turn on the power again. Error displayed...

  • Page 96: Electrical Box Temperature Rise

    Troubleshooting SiENBE07-618_C 4.20 Electrical Box Temperature Rise Remote Control Display Method of An electrical box temperature rise is detected by checking the radiation fin thermistor with the Malfunction compressor off. Detection „ With the compressor off, the radiation fin temperature is above Malfunction °C.
  • Page 97 SiENBE07-618_C Troubleshooting Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check No.07 Turn off the power and turn it on WARNING Refer to P.97 again. To cool the electrical components,...

  • Page 98: Radiation Fin Temperature Rise

    Troubleshooting SiENBE07-618_C 4.21 Radiation Fin Temperature Rise Remote Control Display Method of A radiation fin temperature rise is detected by checking the radiation fin temperature with the Malfunction compressor on. Detection „ The radiation fin temperature with the compressor on is above Malfunction °C.
  • Page 99 SiENBE07-618_C Troubleshooting Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Turn off the power and turn it on Check No.07 again to start the system. Refer to P.97 Check No.09...

  • Page 100: Output Overcurrent Detection

    Troubleshooting SiENBE07-618_C 4.22 Output Overcurrent Detection Remote Control Display Method of An output overcurrent is detected by checking the current that flows in the inverter DC section. Malfunction Detection „ A position signal error occurs while the compressor is running.
  • Page 101 SiENBE07-618_C Troubleshooting Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. ∗ An output overcurrent signal may result from wrong internal wiring. If the wires have been Check No.07 disconnected and reconnected and the system is interrupted by an output overcurrent, take the following procedure.

  • Page 102: Refrigerant Shortage

    Troubleshooting SiENBE07-618_C 4.23 Refrigerant Shortage Remote Control Display Method of Refrigerant shortage detection I: Malfunction Refrigerant shortage is detected by checking the input current value and the compressor output frequency. If the refrigerant is short, the input current is smaller than the normal value.
  • Page 103 SiENBE07-618_C Troubleshooting Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check No.04 Refer to P.94 Any thermistor disconnected? Replace them in position. * Discharge pipe thermistor * Indoor or outdoor heat exchanger thermistor * Room temperature thermistor Check No.06...

  • Page 104: Low-Voltage Detection Or Over-Voltage Detection

    Troubleshooting SiENBE07-618_C 4.24 Low-voltage Detection or Over-voltage Detection Remote Control Display Method of Low-voltage detection: Malfunction An abnormal voltage drop is detected by the DC voltage detection circuit. Detection Over-voltage detection: An abnormal voltage rise is detected by the over-voltage detection circuit.

  • Page 105: Signal Transmission Error (On Outdoor Unit Pcb)

    SiENBE07-618_C Troubleshooting 4.25 Signal Transmission Error (on Outdoor Unit PCB) Remote Control Display Method of Communication error between microcomputer mounted on the main microcomputer and PM1. Malfunction Detection „ The abnormality is determined when the data sent from the PM1 can not be received for 9 Malfunction seconds.

  • Page 106: Check

    Check SiENBE07-618_C 5. Check How to Check 5.1.1 Electronic Expansion Valve Check Check No.04 Conduct the followings to check the electronic expansion 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.

  • Page 107: Four Way Valve Performance Check

    SiENBE07-618_C Check 5.1.2 Four Way Valve Performance Check Check No.05 Turn off the power and turn it on again. ∗ Four way valve coil Start heating operation. Cooling / Dry : No continuity Heating : Continuity S80 voltage at 220 - 240 VAC with...

  • Page 108: Thermistor Resistance Check

    Check SiENBE07-618_C 5.1.3 Thermistor Resistance Check Check No.06 Disconnect the connectors of the thermistors from the PCB, and measure the resistance of each thermistor using tester. The relationship between normal temperature and resistance is shown in the table and the graph below.

  • Page 109: Installation Condition Check

    SiENBE07-618_C Check 5.1.4 Installation Condition Check Check No.07 Installation condition check Check the allowable dimensions of Change the installation the air suction and location or direction. discharge area. Is the discharged air Change the installation short-circuited? location or direction. Is the outdoor...

  • Page 110: Outdoor Fan System Check

    Check SiENBE07-618_C 5.1.6 Outdoor Fan System Check Check No.09 DC motor Check the outdoor fan system. Fan motor lead Outdoor fan running? wire connector disconnected? Reconnect the connector. Outdoor fan system is functioning. Go to Check No. 15. (R7159) 5.1.7 Power Supply Waveforms Check Check No.10...

  • Page 111: Capacitor Voltage Check

    SiENBE07-618_C Check 5.1.9 Capacitor Voltage Check Check No.12 Before this check, be sure to check the main circuit for short circuit. With the circuit breaker still on, measure the voltage according to the drawing of the model in question. Be careful never to touch any live parts.

  • Page 112: Hall Ic Check

    Check SiENBE07-618_C 5.1.11 Rotation Pulse Input on the Outdoor Unit PCB Check Check No.15 <Outdoor fan motor> Make sure that the voltage of 320 ± 30 V is applied. 1. Set operation off and power off. Disconnect the connector S70.

  • Page 113: Part 7 Removal Procedure

    SiENBE07-618_C Part 7 Removal Procedure 1. Outdoor Unit..................102 1.1 Removal of Outer Panels ..............102 1.2 Removal of Outdoor Fan / Fan Motor...........106 1.3 Removal of Electrical Box ..............110 1.4 Removal of PCB...................115 1.5 Removal of Sound Blanket / Thermistors..........118 1.6 Removal of Four Way Valve..............120 1.7 Removal of Electronic Expansion Valve..........121...

  • Page 114: Outdoor Unit

    Outdoor Unit SiENBE07-618_C 1. Outdoor Unit Removal of Outer Panels Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the panels. Remove the 4 screws Top panel and lift the top panel.
  • Page 115 SiENBE07-618_C Outdoor Unit Step Procedure Points „ The discharge grille has 4 hooks. Remove the 6 screws of the front panel. Front panel (R12284) Push the front panel and lift the shield plate Shield plate to unfasten the hooks. 1 Push the front panel.
  • Page 116 Outdoor Unit SiENBE07-618_C Step Procedure Points „ Lift the front panel while Unfasten the left side hooks, and then the pushing the left side panel right side hook. inwards. Remove the front panel. „ Lift the front panel and unfasten the right side hook.
  • Page 117 SiENBE07-618_C Outdoor Unit Step Procedure Points 2. Remove the stop valve cover. Remove the screw of the stop valve cover. Stop valve cover (R5252) Pull down the stop valve cover to unfasten the hooks and remove „ The stop valve cover has 6 hooks.

  • Page 118: Removal Of Outdoor Fan / Fan Motor

    Outdoor Unit SiENBE07-618_C Removal of Outdoor Fan / Fan Motor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the electrical box Preparation „ Remove the top panel and cover.
  • Page 119 SiENBE07-618_C Outdoor Unit Step Procedure Points (R5258) 2. Remove the fan motor. Disconnect the connector for the fan [S70] motor [S70]. (R5259) Release the fan motor lead wire from the 7 hooks. Fan motor lead wire (R5260) Removal Procedure...
  • Page 120 Outdoor Unit SiENBE07-618_C Step Procedure Points „ The screw has reverse Remove the washer- fitted nut of the outdoor winding. „ Nut size: M6 fan. 10 mm (R12236) Outdoor fan (R5262) „ When reassembling, align mark of the outdoor fan with D-cut section of the motor shaft.
  • Page 121 SiENBE07-618_C Outdoor Unit Step Procedure Points „ When reassembling, put the Release the fan motor lead wire from the 2 fan motor lead wire through hooks and pull the fan the back of the fan motor (so motor out. as not to be entangled with the outdoor fan).

  • Page 122: Removal Of Electrical Box

    Outdoor Unit SiENBE07-618_C Removal of Electrical Box Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the 2 screws Preparation „ Remove the top panel and of the shield plate.
  • Page 123 SiENBE07-618_C Outdoor Unit Step Procedure Points Disconnect the 2 earth wires. Earth wires (R5269) Remove the 3 screws of the right side panel. Right side panel (R5270) Remove the screw of the electrical box. Removal Procedure...
  • Page 124 Outdoor Unit SiENBE07-618_C Step Procedure Points „ When reassembling, insert Unfasten the hooks and remove the right side the 2 hooks of the lower part panel. and the 1 hook of the upper Hook back. (R5272) Hooks (R5273) Disconnect the...
  • Page 125 SiENBE07-618_C Outdoor Unit Step Procedure Points Release the clamp of the compressor relay harness with pliers. Compressor relay harness (R5277) Detach the clamp and release the thermistor Clamp Hook lead wires from the hook. Thermistor lead wire (R5278) Remove the screw.
  • Page 126 Outdoor Unit SiENBE07-618_C Step Procedure Points Release the harness of the outdoor temperature thermistor from the hook. (R9403) Lift and remove the electrical box. Electrical box (R5279) Removal Procedure...

  • Page 127: Removal Of Pcb

    SiENBE07-618_C Outdoor Unit Removal of PCB Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Disconnect the Preparation [S102] [S52] „ Remove the electrical box connectors from the service monitor PCB according to the “Removal of...
  • Page 128 Outdoor Unit SiENBE07-618_C Step Procedure Points Unfasten the hook on the right. Open the terminal board. Disconnect the 1: Black harnesses. 2: White 3: Red L1: Black L2: Brown N1: White N2: Blue (R5285) Disconnect the 2 connectors for the...
  • Page 129 SiENBE07-618_C Outdoor Unit Step Procedure Points Remove the 3 screws of the main PCB. Main PCB (R5287) Unfasten the 4 hooks. Hooks (R5288) „ Refer to page 16 for detail. Lift up and remove the main PCB. Main PCB (R5289)

  • Page 130: Removal Of Sound Blanket / Thermistors

    Outdoor Unit SiENBE07-618_C Removal of Sound Blanket / Thermistors Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the sound blanket (back). Sound blanket (back) „...
  • Page 131 SiENBE07-618_C Outdoor Unit Step Procedure Points Remove the sound Sound blanket blanket (top lower). (top lower) (R11398) Remove the sound blanket (inner). Sound blanket (inner) (R5296) „ Be careful not to lose the clip Release the discharge pipe thermistor. for the thermistor.

  • Page 132: Removal Of Four Way Valve

    Outdoor Unit SiENBE07-618_C 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 Remove the screw and remove the four way Warning Four way valve coil.

  • Page 133: Removal Of Electronic Expansion Valve

    SiENBE07-618_C Outdoor Unit Removal of Electronic Expansion Valve Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Pull out the electronic expansion valve coil. Electronic expansion valve coil...

  • Page 134: Removal Of Compressor

    Outdoor Unit SiENBE07-618_C Removal of Compressor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the terminal cover. Terminal cover (R5302) Disconnect the lead wires of the compressor.
  • Page 135 SiENBE07-618_C Outdoor Unit Step Procedure Points Release the clamp with pliers to detach the compressor lead wires. Remove the putty. „ Before working, make sure that the refrigerant Warning gas is empty in the circuit. „ Be sure to apply nitrogen...
  • Page 136 Outdoor Unit SiENBE07-618_C Step Procedure Points Remove the 2 nuts of Cautions for restoration the compressor. 1. Restore the piping by non- oxidation brazing. 2. It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat.

  • Page 137: Part 8 Trial Operation And Field Settings

    SiENBE07-618_C Part 8 Trial Operation and Field Settings 1. Trial Operation ..................126 2. Field Settings ..................127 2.1 When 2 Units are Installed in 1 Room..........127 2.2 Facility Setting Switch (cooling at low outdoor temperature)....128 2.3 Jumper and Switch Settings..............128 3. Application of Silicon Grease to a Power Transistor and a Diode Bridge ..................129...

  • Page 138: Trial Operation

    Trial Operation SiENBE07-618_C 1. Trial Operation Outline 1. Measure the supply voltage and make sure that it falls in the specified range. 2. Trial operation should be carried out in either cooling or heating mode. 3. Carry out the trial operation in accordance with the operation manual to ensure that all functions and parts, such as flap movement, are working properly.

  • Page 139: Field Settings

    SiENBE07-618_C Field Settings 2. Field Settings When 2 Units are Installed in 1 Room When 2 indoor units are installed in 1 room, 1 of the 2 pairs of indoor unit and infrared remote control can be set for different addresses.

  • Page 140: Facility Setting Switch (Cooling At Low Outdoor Temperature)

    Field Settings SiENBE07-618_C Facility Setting Switch (cooling at low outdoor temperature) Outline For Cooling Only Model This function is limited only for facilities (the target of air conditioning is equipment (such as computer)). Never use it in a residence or office (the space where there is a human).

  • Page 141: Application Of Silicon Grease To A Power Transistor And A Diode Bridge

    SiENBE07-618_C Application of Silicon Grease to a Power Transistor and a Diode Bridge 3. Application of Silicon Grease to a Power Transistor and a Diode Bridge Applicable All outdoor units using inverter type compressor for room air conditioner. Models When the printed circuit board (PCB) of an outdoor unit is replaced, it is required that silicon grease (*1) is certainly applied to the heat radiation part (the contact point to the radiation fin) of the power transistor and diode bridge.

  • Page 142: Part 9 Appendix

    SiENBE07-618_C Part 9 Appendix 1. Piping Diagrams..................131 1.1 Indoor Unit....................131 1.2 Outdoor Unit ..................132 2. Wiring Diagrams..................133 2.1 Indoor Unit....................133 2.2 Outdoor Unit ..................134 Appendix...

  • Page 143: Piping Diagrams

    SiENBE07-618_C Piping Diagrams 1. Piping Diagrams Indoor Unit FDKS50/60CVMB, FDXS50/60CVMB INDOOR UNIT ( 6.4CuT ) HEAT EXCHANGER THERMISTOR FIELD PIPING ON HEAT ( 6.4CuT ) EXCH. SIROCCO FAN FAN MOTOR CuT ) FIELD PIPING CuT ) REFRIGERANT FLOW COOLING HEATING...

  • Page 144: Outdoor Unit

    Piping Diagrams SiENBE07-618_C Outdoor Unit 1.2.1 Cooling Only RKS50/60E2(3)V1B, RKS50/60F2V1B, RKS50G2V1B, RKS60F3V1B OUTDOOR UNIT HEAT EXCHANGER 7.9CuT OUTDOOR AIR TEMPERATURE THERMISTOR 7.9CuT 7.9CuT 7.9CuT 7.9CuT 12.7CuT CAPILLARY TUBE 1 7.9CuT 4.0CuT 7.9CuT MUFFLER WITH 7.9CuT 4.0CuT 7.9CuT REFRIGERANT FLOW FILTER CAPILLARY TUBE 2 6.4CuT...

  • Page 145: Wiring Diagrams

    SiENBE07-618_C Wiring Diagrams 2. Wiring Diagrams Indoor Unit FDKS50/60CVMB, FDXS50/60CVMB PCB1 PCB2 V1TR outdoor 3.15A FIELD WIRING. TERMINAL FOR CAUTION CENTRALIZED CONTROL TRANSMISSION NOTE THAT OPERATION WILL CIRCUIT RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK SIGNAL ON AGAIN.

  • Page 146: Outdoor Unit

    Wiring Diagrams SiENBE07-618_C Outdoor Unit 2.2.1 Cooling Only RKS50F2V1B, RKS50G2V1B X12A MRM20 3.15A POWER SUPPLY MRM10 6(P) + + + 7(N) X11A TO INDOOR UNIT 3.15A PCB1 SHEET METAL S101 indoor FIELD WIRING t° t° t° 1 S102 PCB2 (OUTDOOR) (DISCHARGE)
  • Page 147 SiENBE07-618_C Wiring Diagrams RKS60F3V1B MRM20 POWER SUPPLY MRM10 3.15A 6(P) 7(N) TO INDOOR UNIT X11A 3.15A MRC W PCB1 SHEET METAL S101 indoor FIELD WIRING t° t° t° S102 PCB2 (OUTDOOR) (DISCHARGE) LED A (CONDENSER) outdoor Z1C~Z6C : FERRITE CORE...
  • Page 148 Wiring Diagrams SiENBE07-618_C RXS50/60E2(3)V1B, RXS60F2V1B MRM20 3.15A POWER SUPPLY MRM10 6(P) + + + 7(N) X11A TO INDOOR UNIT 3.15A PCB1 SHEET METAL S101 indoor FIELD WIRING t° t° t° S102 PCB2 (OUTDOOR) (DISCHARGE) LED A (CONDENSER) outdoor Z1C ~ Z4C...
  • Page 149 Specifications are subject to change without environment. This challenge demands the eco design prior notice. Daikin Europe N.V. explicitly rejects any liability for any direct or and development of a wide range of products and an indirect damage, In the broadest sense, arising from or related to the use energy management system, resulting in energy and/or interpretation of this publication.

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