Page 2 - Inverter Pair; Duct Connected Type C-Series; Inverter Pair: Cooling only
SiENBE07-618_C Service Manual Inverter Pair Duct Connected Type C-Series [Applied Models] z Inverter Pair: Cooling only z Inverter Pair: Heat Pump SIENBE07-618_C_FRONT.pdf 2 9/02/2011 9:25:03
Page 7 - Safety Cautions; Cautions Regarding Safety of Workers; Warning
SiENBE07-618_C Introduction v 1. Introduction 1.1 Safety Cautions Cautions and Warnings Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “ Warning ” and “ Caution ”. The “ Warning ” items are especially important since they can le...
Page 11 - Used Icons; Caution
SiENBE07-618_C Introduction ix 1.2 Used Icons Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in the table below: Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 M Ω or higher. ...
Page 13 - List of Functions
SiENBE07-618_C List of Functions 1 Part 1 List of Functions 1. Functions.................................................................................................2 SIENBE07-618_C_FRONT.pdf 13 9/02/2011 9:25:04
Page 17 - Specifications
SiENBE07-618_C Specifications 5 Part 2 Specifications 1. Specifications ..........................................................................................6 1.1 Cooling Only .............................................................................................6 1.2 Heat Pump .............
Page 18 - Cooling Only
Specifications SiENBE07-618_C 6 Specifications 1. Specifications 1.1 Cooling Only 50 Hz, 230 V Models Indoor Units FDKS50CVMB FDKS60CVMB Outdoor Units RKS50E2(3)V1B RKS60E2(3)V1B Capacity Rated (Min. ~ Max.) kW 5.0 (2.0 ~ 5.3) 6.0 (2.0 ~ 6.5) Btu/h 17,100 (6,800 ~ 18,100) 20,500 (6,800 ~ 22,200) kca...
Page 21 - Heat Pump
SiENBE07-618_C Specifications Specifications 9 1.2 Heat Pump 50 Hz, 230 V Models Indoor Units FDXS50CVMB FDXS60CVMB Outdoor Units RXS50E2(3)V1B RXS60E2(3)V1B Cooling Heating Cooling Heating Capacity Rated (Min. ~ Max.) kW 5.0 (2.0 ~ 5.3) 5.8 (2.0 ~ 6.0) 6.0 (2.0 ~ 6.5) 7.0 (2.0 ~ 8.0) Btu/h 17,100 (...
Page 24 - Printed Circuit Board
SiENBE07-618_C 12 Printed Circuit Board Connector Wiring Diagram Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram..................................13 1.1 Indoor Unit ..................................................................................
Page 25 - Printed Circuit Board Connector Wiring Diagram; Indoor Unit
SiENBE07-618_C Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 13 1. Printed Circuit Board Connector Wiring Diagram 1.1 Indoor Unit Connectors and Other Parts PCB(1): Control PCB PCB(2): Display PCB 1) S1 Connector for AC fan motor 2) S7 Connector for AC...
Page 27 - Outdoor Unit
SiENBE07-618_C Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 15 1.2 Outdoor Unit Connectors and Other Parts PCB (1): Main PCB PCB (2): Service Monitor PCB 1) S10 Connector for terminal board (indoor - outdoor transmission) 2) S20 Connector for electron...
Page 29 - Function and Control
SiENBE07-618_C Function and Control 17 Part 4 Function and Control 1. Main Functions ......................................................................................18 1.1 Temperature Control ..............................................................................18 1.2 Frequency Princip...
Page 30 - Temperature Control; Frequency Principle
Main Functions SiENBE07-618_C 18 Function and Control 1. Main Functions 1.1 Temperature Control Definitions of Temperatures The definitions of temperatures are classified as following. Room temperature: temperature of lower part of the room Set temperature: temperature set by remote control Ro...
Page 32 - Fan Speed Control for Indoor Units
Main Functions SiENBE07-618_C 20 Function and Control 1.3 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 tem...
Page 33 - Program Dry Operation
SiENBE07-618_C Main Functions Function and Control 21 1.4 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 but...
Page 34 - Automatic Operation
Main Functions SiENBE07-618_C 22 Function and Control 1.5 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...
Page 35 - Thermostat Control
SiENBE07-618_C Main Functions Function and Control 23 1.6 Thermostat Control Thermostat control is based on the difference between the room thermistor temperature and the target temperature. Thermostat OFF Condition The temperature difference is in the zone A. Thermostat ON Condition The tempera...
Page 36 - NIGHT SET Mode
Main Functions SiENBE07-618_C 24 Function and Control 1.7 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...
Page 37 - HOME LEAVE Operation
SiENBE07-618_C Main Functions Function and Control 25 1.8 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 cont...
Page 38 - Inverter POWERFUL Operation
Main Functions SiENBE07-618_C 26 Function and Control 1.9 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 pres...
Page 40 - Function of Thermistor
Function of Thermistor SiENBE07-618_C 28 Function and Control 2. Function of Thermistor A Outdoor Heat Exchanger Thermistor 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 outdo...
Page 41 - Control Specification; Mode Hierarchy
SiENBE07-618_C Control Specification Function and Control 29 3. Control Specification 3.1 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 follow...
Page 42 - Frequency Control
Control Specification SiENBE07-618_C 30 Function and Control 3.2 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 frequency2. Frequency command fr...
Page 44 - Four Way Valve Operation Compensation
Control Specification SiENBE07-618_C 32 Function and Control 3.3 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 (inte...
Page 45 - Discharge Pipe Temperature Control
SiENBE07-618_C Control Specification Function and Control 33 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 se...
Page 46 - Input Current Control
Control Specification SiENBE07-618_C 34 Function and Control 3.5 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 ...
Page 47 - Freeze-up Protection Control; Heating Peak-cut Control
SiENBE07-618_C Control Specification Function and Control 35 3.6 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 div...
Page 48 - Outdoor Fan Control; Liquid Compression Protection Function
Control Specification SiENBE07-618_C 36 Function and Control 3.8 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 i...
Page 50 - Electronic Expansion Valve Control
Control Specification SiENBE07-618_C 38 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....
Page 52 - Disconnection of the Discharge Pipe Thermistor; Target Discharge Pipe Temperature Control
Control Specification SiENBE07-618_C 40 Function and Control 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...
Page 53 - Detection of Overcurrent and Overload
SiENBE07-618_C Control Specification Function and Control 41 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. Radiation fin thermistor4. Outdoor ...
Page 54 - Forced Operation Mode
Control Specification SiENBE07-618_C 42 Function and Control 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. Th...
Page 55 - Operation Manual
SiENBE07-618_C Operation Manual 43 Part 5 Operation Manual 1. System Configuration ............................................................................442. Operation Manual..................................................................................45 2.1 Remote Control ...................
Page 56 - System Configuration
System Configuration SiENBE07-618_C 44 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 ro...
Page 57 - Remote Control; Remote control
SiENBE07-618_C Operation Manual System Configuration 45 2. Operation Manual 2.1 Remote Control Remote control 1 2 5 6 9 13 15 14 10 12 11 < ARC433B69, B76 > 3 4 7 8 1. Signal transmitter: • It sends signals to the indoor unit. 2. Display: • It displays the current settings. (In this illustra...
Page 58 - Auto Dry Cool Heat Fan Operation; To start operation; To stop operation
Operation Manual SiENBE07-618_C 46 System Configuration 2.2 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”...
Page 59 - To change the air flow rate setting
SiENBE07-618_C Operation Manual System Configuration 47 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...
Page 60 - POWERFUL Operation; NOTE; To cancel POWERFUL operation
Operation Manual SiENBE07-618_C 48 System Configuration 2.3 POWERFUL Operation NOTE 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 minu...
Page 61 - OUTDOOR UNIT QUIET Operation
SiENBE07-618_C Operation Manual System Configuration 49 2.4 OUTDOOR UNIT QUIET Operation NOTE 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 o...
Page 62 - Before using HOME LEAVE operation; To cancel HOME LEAVE operation
Operation Manual SiENBE07-618_C 50 System Configuration 2.5 HOME LEAVE Operation Before using 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”. • “ ” ...
Page 63 - What’s the HOME LEAVE operation
SiENBE07-618_C Operation Manual System Configuration 51 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...
Page 64 - TIMER Operation; To cancel the OFF TIMER operation
Operation Manual SiENBE07-618_C 52 System Configuration 2.6 TIMER Operation NOTE 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 cloc...
Page 65 - ATTENTION; To cancel the ON TIMER operation; To combine ON TIMER and OFF TIMER
SiENBE07-618_C Operation Manual System Configuration 53 ATTENTION 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...
Page 66 - Service Diagnosis
SiENBE07-618_C 54 Service Diagnosis Part 6 Service Diagnosis 1. Caution for Diagnosis ............................................................................55 1.1 Troubleshooting with LED ......................................................................55 2. Problem Symptoms and Measures ...
Page 67 - Caution for Diagnosis; Troubleshooting with LED
SiENBE07-618_C Caution for Diagnosis Service Diagnosis 55 1. Caution for Diagnosis 1.1 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 m...
Page 68 - Problem Symptoms and Measures
Problem Symptoms and Measures SiENBE07-618_C 56 Service Diagnosis 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. Che...
Page 69 - Service Check Function
SiENBE07-618_C Service Check Function Service Diagnosis 57 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. 2. Press the timer cancel button repeatedly until a long beep sounds. The co...
Page 72 - Error Codes and Description
Troubleshooting SiENBE07-618_C 60 Service Diagnosis 4. Troubleshooting 4.1 Error Codes and Description H : Displayed only when system-down occurs. Error Codes Description Reference Page System 00 Normal — U0 H Refrigerant shortage 90 U2 Low-voltage detection or over-voltage detection 92 U4 Signal tr...
Page 73 - Indoor Unit PCB Abnormality
SiENBE07-618_C Troubleshooting Service Diagnosis 61 4.2 Indoor Unit PCB Abnormality Remote Control Display A1 Method of Malfunction Detection Evaluation of zero-cross detection of power supply by the indoor unit PCB. Malfunction Decision Conditions There is no zero-cross detection in approximately 1...
Page 76 - Fan Motor (AC motor) or Related Abnormality
Troubleshooting SiENBE07-618_C 64 Service Diagnosis 4.4 Fan Motor (AC motor) or Related Abnormality Remote Control Display A6 Method of Malfunction Detection The rotation speed is detected by the Hall IC while the fan motor is operating. The rotation speed determines the error. Malfunction Decision ...
Page 77 - Thermistor or Related Abnormality (Indoor Unit)
SiENBE07-618_C Troubleshooting Service Diagnosis 65 4.5 Thermistor or Related Abnormality (Indoor Unit) Remote Control Display C4 , C9 Method of Malfunction Detection The temperatures detected by the thermistors determine thermistor errors. Malfunction Decision Conditions The thermistor input is mor...
Page 80 - Outdoor Unit PCB Abnormality
Troubleshooting SiENBE07-618_C 68 Service Diagnosis 4.8 Outdoor Unit PCB Abnormality Remote Control Display E1 Method of Malfunction Detection Detection within the program of the microcomputer Malfunction Decision Conditions The program of the microcomputer is in abnormal running order. Supposed...
Page 84 - Input Overcurrent Detection
Troubleshooting SiENBE07-618_C 72 Service Diagnosis 4.12 Input Overcurrent Detection Remote Control Display E8 Method of Malfunction Detection An input overcurrent is detected by checking the input current value being detected by CT with the compressor running. Malfunction Decision Conditions The ...
Page 85 - Four Way Valve Abnormality
SiENBE07-618_C Troubleshooting Service Diagnosis 73 4.13 Four Way Valve Abnormality Remote Control Display EA Method of Malfunction Detection The room temperature thermistor, the indoor heat exchanger thermistor, the outdoor temperature thermistor, and the outdoor heat exchanger thermistor are check...
Page 87 - Discharge Pipe Temperature Control
SiENBE07-618_C Troubleshooting Service Diagnosis 75 4.14 Discharge Pipe Temperature Control Remote Control Display F3 Method of Malfunction Detection An error is determined with the temperature detected by the discharge pipe thermistor. Malfunction Decision Conditions If the temperature detected b...
Page 88 - High Pressure Control in Cooling
Troubleshooting SiENBE07-618_C 76 Service Diagnosis 4.15 High Pressure Control in Cooling Remote Control Display F6 Method of Malfunction Detection High-pressure control (operation half, frequency drop, etc.) is activated in cooling mode if the temperature sensed by the outdoor heat exchanger thermi...
Page 89 - Compressor System Sensor Abnormality
SiENBE07-618_C Troubleshooting Service Diagnosis 77 4.16 Compressor System Sensor Abnormality Remote Control Display H0 Method of Malfunction Detection The system checks the supply voltage and the DC voltage before the compressor starts. The system checks the compressor current right after the c...
Page 90 - Position Sensor Abnormality
Troubleshooting SiENBE07-618_C 78 Service Diagnosis 4.17 Position Sensor Abnormality Remote Control Display H6 Method of Malfunction Detection A compressor start-up failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Decision Condition...
Page 92 - CT or Related Abnormality
Troubleshooting SiENBE07-618_C 80 Service Diagnosis 4.18 CT or Related Abnormality Remote Control Display H8 Method of Malfunction Detection A CT or related error is detected by checking the compressor running frequency and CT-detected input current. Malfunction Decision Conditions The compressor ...
Page 96 - Electrical Box Temperature Rise
Troubleshooting SiENBE07-618_C 84 Service Diagnosis 4.20 Electrical Box Temperature Rise Remote Control Display L3 Method of Malfunction Detection An electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off. Malfunction Decision Conditions With t...
Page 98 - Radiation Fin Temperature Rise
Troubleshooting SiENBE07-618_C 86 Service Diagnosis 4.21 Radiation Fin Temperature Rise Remote Control Display L4 Method of Malfunction Detection A radiation fin temperature rise is detected by checking the radiation fin temperature with the compressor on. Malfunction Decision Conditions The radia...
Page 100 - Output Overcurrent Detection
Troubleshooting SiENBE07-618_C 88 Service Diagnosis 4.22 Output Overcurrent Detection Remote Control Display L5 Method of Malfunction Detection An output overcurrent is detected by checking the current that flows in the inverter DC section. Malfunction Decision Conditions A position signal error o...
Page 102 - Refrigerant Shortage
Troubleshooting SiENBE07-618_C 90 Service Diagnosis 4.23 Refrigerant Shortage Remote Control Display U0 Method of Malfunction Detection Refrigerant shortage detection I: Refrigerant shortage is detected by checking the input current value and the compressor output frequency. If the refrigerant is sh...
Page 106 - How to Check
Check SiENBE07-618_C 94 Service Diagnosis 5. Check 5.1 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 che...
Page 110 - Inverter Units Refrigerant System Check
Check SiENBE07-618_C 98 Service Diagnosis 5.1.6 Outdoor Fan System Check Check No.09 DC motor 5.1.7 Power Supply Waveforms Check Check No.10 Measure the power supply waveform between No.1 and No.2 on the terminal board, and check the waveform disturbance. Check to see if the power supply waveform ...
Page 112 - 1 Rotation Pulse Input on the Outdoor Unit PCB Check
Check SiENBE07-618_C 100 Service Diagnosis 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 S70.2. Check that the voltage between the pins 4 ...
Page 113 - Removal Procedure
SiENBE07-618_C Removal Procedure 101 Part 7 Removal Procedure 1. Outdoor Unit ........................................................................................102 1.1 Removal of Outer Panels .....................................................................102 1.2 Removal of Outdoor Fan / ...
Page 114 - Removal of Outer Panels
Outdoor Unit SiENBE07-618_C 102 Removal Procedure 1. Outdoor Unit 1.1 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. Take care not to cut your finger by the...
Page 118 - Removal of Outdoor Fan / Fan Motor
Outdoor Unit SiENBE07-618_C 106 Removal Procedure 1.2 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 cover. Preparation Remove the top pan...
Page 122 - Removal of Electrical Box
Outdoor Unit SiENBE07-618_C 110 Removal Procedure 1.3 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 1 Remove the 2 screws of the shield plate. Preparation Remove the top panel...
Page 127 - Removal of PCB
SiENBE07-618_C Outdoor Unit Removal Procedure 115 1.4 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 1 Disconnect the connectors from the service monitor PCB [S52] [S102]. Preparation Rem...
Page 130 - Removal of Sound Blanket / Thermistors
Outdoor Unit SiENBE07-618_C 118 Removal Procedure 1.5 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 1 Remove the sound blanket (back). 2 Remove the sound blanket (o...
Page 132 - Removal of Four Way Valve
Outdoor Unit SiENBE07-618_C 120 Removal Procedure 1.6 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 screw and remove the four way valve coil. Warning Be careful not to ...
Page 133 - Removal of Electronic Expansion Valve
SiENBE07-618_C Outdoor Unit Removal Procedure 121 1.7 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 1 Pull out the electronic expansion valve coil. 2 Remove the shee...
Page 134 - Removal of Compressor
Outdoor Unit SiENBE07-618_C 122 Removal Procedure 1.8 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 1 Remove the terminal cover. 2 Disconnect the lead wires of the compressor. Termi...
Page 137 - Trial Operation and; Application of Silicon Grease to a Power Transistor and
SiENBE07-618_C Trial Operation and Field Settings 125 Part 8 Trial Operation and Field Settings 1. Trial Operation ....................................................................................1262. Field Settings ...................................................................................
Page 139 - When 2 Units are Installed in 1 Room
SiENBE07-618_C Field Settings Trial Operation and Field Settings 127 2. Field Settings 2.1 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.Both the indoor unit PCB and the...
Page 140 - Jumper and Switch Settings
Field Settings SiENBE07-618_C 128 Trial Operation and Field Settings 2.2 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 reside...
Page 141 - Application of Silicon Grease to a Power; applied
SiENBE07-618_C Application of Silicon Grease to a Power Transistor and a Diode Bridge Trial Operation and Field Settings 129 3. Application of Silicon Grease to a Power Transistor and a Diode Bridge Applicable Models All outdoor units using inverter type compressor for room air conditioner. When the...
Page 142 - Appendix
SiENBE07-618_C 130 Appendix Part 9 Appendix 1. Piping Diagrams ..................................................................................131 1.1 Indoor Unit ............................................................................................131 1.2 Outdoor Unit .........................