SiBE05-722ED Service Manual Inverter Pair Floor / Ceiling Suspended Dual Type BA-Series [Applied Models] ● Inverter Pair : Cooling Only ● Inverter Pair : Heat Pump
SiBE05-722ED Inverter Pair Floor / Ceiling Suspended Dual Type BA-Series zCooling Only Indoor Unit FLKS25BAVMB FLKS35BAVMB Outdoor Unit RKS25E2V1B RKS35E2V1B RKS25G2V1B RKS35G2V1B RKS25G2V1B9 RKS35G2V1B9 zHeat Pump Indoor Unit FLXS25BAVMB FLXS35BAVMB FLXS35BAVMB9 Outdoor Unit RXS25E2V1B RXS35E2V1B i RXS25G2V1B RXS35G2V1B RXS25G2V1B9 RXS35G2V1B9 RXS25J2V1B RXS35J2V1B RXS25K3V1B RXS35K2V1B RXS35L2V1B Table of Contents
SiBE05-722ED 1. Safety Cautions.......................................................................................v 1.1 Warnings and Cautions Regarding Safety of Workers.............................v 1.2 Warnings and Cautions Regarding Safety of Users............................... vii 2. Used Icons ..............................................................................................x Part 1 List of Functions ................................................................ 1 1. Functions....
SiBE05-722ED 3.11 Electronic Expansion Valve Control .......................................................49 3.12 Malfunctions ...........................................................................................52 Part 5 Remote Controller ............................................................ 53 1. Remote Controller .................................................................................54 Part 6 Service Diagnosis............................................................. 56 1.
SiBE05-722ED 5.13 Power Module Check ...........................................................................109 Part 7 Trial Operation and Field Settings................................. 111 1. 2. 3. 4. Pump Down Operation........................................................................112 Forced Cooling Operation ...................................................................113 Trial Operation ....................................................................................
Safety Cautions SiBE05-722ED 1. Safety Cautions Be sure to read the following safety cautions before conducting repair work. After the repair work is complete, be sure to conduct a test operation to ensure that the equipment operates normally, and explain the cautions for operating the product to the customer. Caution Items Pictograms 1.1 The caution items are classified into Warning and Caution.
SiBE05-722ED Safety Cautions Warning Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug. Plugging or unplugging the power cable plug to operate the equipment may cause an electrical shock or fire. 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.
Safety Cautions SiBE05-722ED Caution Use the welder in a well-ventilated place. Using the welder in an enclosed room may cause oxygen deficiency. 1.2 Warnings and Cautions Regarding Safety of Users Warning Do not store the equipment in a room with successive fire sources (e.g., naked flame, gas appliance, electric heater). 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.
SiBE05-722ED Safety Cautions Warning Do not mix air or gas other than the specified refrigerant (R-32 / R-410A / R-22) in the refrigerant system. If air enters the refrigerating system, an excessively high pressure results, causing equipment damage and injury. If the refrigerant gas leaks, be sure to locate the leaking point and repair it before charging the refrigerant. After charging refrigerant, make sure that there is no refrigerant leak.
Safety Cautions SiBE05-722ED Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections may cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it. Corroded installation platform or frame may cause the unit to fall, resulting in injury.
SiBE05-722ED Used Icons 2. Used Icons The following icons are used to attract the attention of the reader to specific information. Icon Type of Information Warning Description Caution A Caution is used when there is danger that the reader, through incorrect manipulation, may damage equipment, loose data, get an unexpected result or has to restart (part of) a procedure. Note A Note provides information that is not indispensable, but may nevertheless be valuable to the reader, such as tips and tricks.
SiBE05-722ED Part 1 List of Functions 1. Functions.................................................................................................
SiBE05-722ED Functions Operation limit for cooling (°CDB) Operation limit for heating (°CWB) Compressor Comfortable Airflow Comfort Control Operation Lifestyle Convenience z z –10 –10 ~ 46 ~ 46 ★ — FLXS25/35BAVMB RXS25/35E2V1B Inverter (with inverter power control) FLKS25/35BAVMB RKS25/35E2V1B Basic Function Functions FLXS25/35BAVMB RXS25/35E2V1B Category FLKS25/35BAVMB RKS25/35E2V1B 1.
Inverter (with inverter power control) Operation limit for cooling (°CDB) Operation limit for heating (°CWB) Compressor Comfortable Airflow Operation Lifestyle Convenience — Health & Clean Air-purifying filter z z Photocatalytic deodorizing filter z z –15 ~ 18 Air-purifying filter with photocatalytic deodorizing function (option) z z — — Functions PAM control z z — — Titanium apatite photocatalytic air-purifying filter Oval scroll compressor — — Air filter (prefilter) z z Swi
Operation limit for cooling (°CDB) Operation limit for heating (°CWB) Compressor Comfortable Airflow Operation Lifestyle Convenience z — Air-purifying filter z z Photocatalytic deodorizing filter z z Air-purifying filter with photocatalytic deodorizing function (option) z z — — Category Health & Clean –15 ~ 18 Functions PAM control z z Standby electricity saving — — Titanium apatite photocatalytic air-purifying filter Oval scroll compressor — — Air filter (prefilter) z z S
Compressor Comfortable Airflow z z Operation limit for cooling (°CDB) –10 ~ 46 –10 ~ 46 Operation limit for heating (°CWB) –15 ~ 18 –15 ~ 18 Inverter (with inverter power control) Operation Lifestyle Convenience Health & Clean z z ★ Photocatalytic deodorizing filter z z Air-purifying filter with photocatalytic deodorizing function (option) z z — — Functions PAM control z z — — Titanium apatite photocatalytic air-purifying filter Oval scroll compressor — — Air filter (prefi
Basic Function Functions Inverter (with inverter power control) Operation limit for cooling (°CDB) Operation limit for heating (°CWB) Compressor Comfortable Airflow Comfort Control Operation Lifestyle Convenience z –10 ~ 46 Category Health & Clean ★ –15 ~ 18 Functions FLXS35BAVMB9 RXS35L2V1B Category Functions FLXS35BAVMB9 RXS35L2V1B SiBE05-722ED Air-purifying filter z Photocatalytic deodorizing filter z Air-purifying filter with photocatalytic deodorizing function (option) z Titan
SiBE05-722ED Part 2 Specifications 1. Specifications ..........................................................................................8 1.1 Cooling Only.............................................................................................8 1.2 Heat Pump .............................................................................................
SiBE05-722ED Specifications 1. Specifications 1.1 Cooling Only 50 Hz, 220 - 230 - 240 V Model Indoor Unit Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Gas Connections Drain Heat Insulation Max. Interunit Piping Length Max.
Specifications SiBE05-722ED 50 Hz, 220 - 230 - 240 V Model Indoor Unit Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Gas Connections Drain Heat Insulation Max. Interunit Piping Length Max.
SiBE05-722ED Specifications 50 Hz, 220 - 230 - 240 V Model Indoor Unit Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Gas Connections Drain Heat Insulation Max. Interunit Piping Length Max.
Specifications 1.2 SiBE05-722ED Heat Pump 50 Hz, 220 - 230 - 240 V Indoor Unit Model FLXS25BAVMB RXS25E2V1B Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Gas Connections Drain Heat Insulation Max. Interunit Piping Length Max.
SiBE05-722ED Specifications 50 Hz, 220 - 230 - 240 V Indoor Unit Model FLXS25BAVMB RXS25G2V1B Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Connections Gas Drain Heat Insulation Max. Interunit Piping Length Max.
Specifications SiBE05-722ED 50 Hz, 220 - 230 - 240 V Indoor Unit Model FLXS25BAVMB RXS25G2V1B9 Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Connections Gas Drain Heat Insulation Max. Interunit Piping Length Max.
SiBE05-722ED Specifications 50 Hz, 220 - 230 - 240 V Indoor Unit Model FLXS25BAVMB RXS25J2V1B Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Connections Gas Drain Heat Insulation Max. Interunit Piping Length Max.
Specifications SiBE05-722ED 50 Hz, 220 - 230 - 240 V Indoor Unit Model FLXS25BAVMB RXS25K3V1B Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Connections Gas Drain Heat Insulation Max. Interunit Piping Length Max.
SiBE05-722ED Specifications 50 Hz, 220 - 230 - 240 V Indoor Unit Model FLXS35BAVMB9 RXS35L2V1B Outdoor Unit Capacity Rated (Min. ~ Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min. ~ Max.) Power Factor COP Rated (Min. ~ Max.) Liquid Piping Connections Gas Drain Heat Insulation Max. Interunit Piping Length Max.
SiBE05-722ED Part 3 Printed Circuit Board Connector Wiring Diagram 1. Indoor Unit.............................................................................................18 2. Outdoor Unit..........................................................................................20 2.1 RK(X)S25/35E2V1B ...............................................................................20 2.2 RK(X)S25/35G2V1B...............................................................................22 2.
SiBE05-722ED Indoor Unit 1. Indoor Unit Control PCB (PCB1) 1) 2) 3) 4) 5) 6) 7) 8) S6 S7 S21 S24 S26 S32 S37 JA 9) JB JC 10) SW2 11) LED A Connector for swing motor (horizontal swing) Connector for AC fan motor Connector for centralized control (HA) Connector for display PCB Connector for signal receiver PCB Connector for indoor heat exchanger thermistor Connector for power supply PCB Address setting jumper ∗ Refer to page 115 for detail.
Indoor Unit SiBE05-722ED Power Supply PCB (PCB2) 1) 2) 3) 4) 5) S36 H1, H2, H3 H4, H5, H6 V1 FU1 Connector for control PCB Connector for terminal board Connector for AC fan motor Varistor Fuse (3.
SiBE05-722ED Outdoor Unit 2. Outdoor Unit 2.
Outdoor Unit SiBE05-722ED Filter PCB (PCB1) 1) 2) 3) 4) S11 HL1, HN1, S E HC1, HC2 HL2, HN2 5) HR1 6) FU3 7) V2, V3 Connector for main PCB Connector for terminal board Terminal for earth wire Connector for main PCB Connector for reactor Fuse (20 A, 250 V) Varistor HC2 HR1 E HL1 HN1 S HN2 HC1 S11 HL2 V3 V2 FU3 3P143310-1 21 Printed Circuit Board Connector Wiring Diagram
SiBE05-722ED 2.
Outdoor Unit SiBE05-722ED Filter PCB (PCB1) 1) 2) 3) 4) 5) 6) 7) 8) S11 HL1, HN1, S E1 E2 HL2, HN2 HR1 FU3 V2, V3 Connector for main PCB Connector for terminal board Terminal for earth wire Connector for terminal board (earth) Connector for main PCB Connector for reactor Fuse (20 A, 250 V) Varistor E1 E2 HR1 HL1 HN1 V3 S V2 HN2 FU3 S11 HL2 to S50 (on main PCB) 23 3P203203-1 Printed Circuit Board Connector Wiring Diagram
SiBE05-722ED 2.
Outdoor Unit SiBE05-722ED Filter PCB (PCB1) 1) 2) 3) 4) 5) 6) 7) 8) S11 AC1, AC2, S E1, E2 HL2, HN2 HR1 FU1 FU3 V2, V3 Connector for main PCB Connector for terminal board Terminal for earth wire Connector for main PCB Connector for reactor Fuse (3.
SiBE05-722ED Part 4 Function and Control 1. Main Functions......................................................................................27 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 Temperature Control ..............................................................................27 Frequency Principle................................................................................27 Airflow Direction Control.........................................................................
Main Functions SiBE05-722ED 1. Main Functions 1.1 Temperature Control Definitions of Temperatures The definitions of temperatures are classified as following.
SiBE05-722ED Drawing of Inverter Main Functions The following drawing shows a schematic view of the inverter principle: Refrigerant circulation rate (high) AC power Amount of heat exchanged air (small) DC power high speed Amount of heat exchanged air (large) high f low f low speed 50 Hz freq= constant 60 Hz freq=variable Amount of heat exchanged air (large) Amount of heat exchanged air (small) capacity= variable Refrigerant circulation rate (low) Inverter Features (R2812) The inverter provid
Main Functions 1.3 SiBE05-722ED Airflow Direction Control Auto-Swing The following table explains the auto-swing process for cooling, dry, fan, and heating: Up and Down Cooling / Dry / Fan 65˚ 20˚ 40˚ Ceiling Heating 95 ˚ (R2964) (R2963) 95 ˚ 40˚ 20˚ ˚ 65 Floor (R2967) 1.4 (R2966) Fan Speed Control for Indoor Unit Outline Phase control and fan speed control contains 9 steps: LLL, LL, SL, L, ML, M, MH, H, and HH.
SiBE05-722ED 1.5 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 setting buttons are inoperable. Detail The microcomputer automatically sets the temperature and airflow rate. The difference between the room thermistor temperature at start-up and the target temperature is divided into two zones.
Main Functions 1.6 Outline Detail SiBE05-722ED Automatic Operation Automatic Cooling / Heating Function When the automatic operation is selected with the remote controller, the microcomputer automatically determines the operation mode as cooling or heating according to the room temperature and the set temperature at start-up. The unit automatically switches the operation mode to maintain the room temperature at the set temperature.
SiBE05-722ED 1.7 Main Functions Thermostat Control Outline Detail 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 Conditions The temperature difference returns to the zone C after being in the zone A. The system resumes from defrost control in any zones except A. The operation turns on in any zones except A.
Main Functions 1.8 SiBE05-722ED NIGHT SET Mode Outline When the OFF TIMER is set, NIGHT SET Mode is automatically activated. NIGHT SET Mode keeps the airflow rate setting. Detail 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.
SiBE05-722ED 1.9 Main Functions HOME LEAVE Operation Outline HOME LEAVE operation is a function that allows you to record your preferred set temperature and airflow rate. You can start your preferred operation mode simply by pressing the HOME LEAVE button on the remote controller. Detail The indoor unit is operated according to the set temperature and airflow rate for HOME LEAVE which were preset in the memory of the remote controller.
Main Functions SiBE05-722ED Setting Temperature and Airflow Rate When using HOME LEAVE operation for the first time, set your preferred temperature and airflow rate for HOME LEAVE operation. Initial setting Cooling Temperature 25°C Heating 25°C Selectable range Airflow rate Temperature 18 ~ 32°C 10 ~ 30°C Airflow rate 5 steps, , 5 steps, , 1. Press the HOME LEAVE button. Make sure is displayed on the remote controller. 2. Adjust the temperature with the or button. 3.
SiBE05-722ED Main Functions 1.11 Clock Setting ARC433 Series The clock can be set by taking the following steps: 1. Press the CLOCK button. is displayed and blinks. → 2. Press the TIMER ▲ or ▼ button to set the clock to the present time. Holding down the TIMER ▲ or ▼ button increases or decreases the time display rapidly. 3. Press the CLOCK button again. blinks and clock setting is completed.
Main Functions SiBE05-722ED 1.12 Other Functions 1.12.1 Hot-Start Function In order to prevent the cold air blast that normally occurs when heating operation is started, the temperature of the indoor heat exchanger is detected, and the airflow is either stopped or significantly weakened resulting in comfortable heating. Note: The cold air blast is prevented using similar control when defrost control starts or when the thermostat is turned ON. 1.12.
SiBE05-722ED Function of Thermistor 2. Function of Thermistor Electronic expansion valve (1) (3) Four way valve (2) Compressor (R14247) (1) Outdoor Heat Exchanger Thermistor 1. The outdoor heat exchanger thermistor is used for controlling the target discharge pipe temperature.
Control Specification SiBE05-722ED 3. Control Specification 3.1 Mode Hierarchy Outline The air conditioner control has normal operation mode, forced operation mode, and power transistor test mode for installation and servicing.
SiBE05-722ED 3.2 Control Specification Frequency Control Outline The compressor frequency is determined according to the difference between the room thermistor temperature and the target temperature. When the shift of the frequency is less than zero (∆F<0) by PI control, the target frequency is used as the command frequency. Dropping function Input current control, etc.
Control Specification SiBE05-722ED 3. Determine lower limit frequency The maximum value is set as a lower limit frequency among the frequency lower limits of the following functions: Four way valve operation compensation, draft prevention, pressure difference upkeep. 4. Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency.
SiBE05-722ED 3.3 Control Specification Controls at Mode Changing / Start-up 3.3.1 Preheating Control Outline The inverter operation in open phase starts with the conditions of the preheating command from the indoor unit, the outdoor temperature, and the discharge pipe temperature. Detail RK(X)S25/35E2V1B, RK(X)S25/35G2V1B ON Condition When the discharge pipe temperature is below 10°C, the inverter operation in open phase starts.
Control Specification SiBE05-722ED 3.3.3 Four Way Valve Operation Compensation Outline At the beginning of operation as the four way valve is switched, the pressure difference to activate the four way valve is acquired when the output frequency is higher than a certain fixed frequency, for a certain fixed time. Detail Starting Conditions 1. When the compressor starts and the four way valve switches from OFF to ON 2. When the four way valve switches from ON to OFF during operation 3.
SiBE05-722ED 3.4 Control Specification Discharge Pipe Temperature Control Outline The discharge pipe temperature is used as the internal temperature of the compressor. If the discharge pipe temperature rises above a certain level, the upper limit of frequency is set to keep the discharge pipe temperature from rising further.
Control Specification 3.5 Outline SiBE05-722ED Input Current Control The microcomputer calculates the input current while the compressor is running, and sets the frequency upper limit based on the input current. In case of heat pump models, this control is the upper limit control of frequency and takes priority over the lower limit control of four way valve operation compensation.
SiBE05-722ED 3.6 Control Specification Freeze-up Protection Control 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.) The operating frequency limitation is judged with the indoor heat exchanger temperature.
Control Specification 3.8 SiBE05-722ED Outdoor Fan Control 1. 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. 2. Fan OFF control during defrosting The outdoor fan is turned OFF during defrosting. 3. Fan OFF delay when stopped The outdoor fan is turned OFF 60 seconds after the compressor stops. 4.
SiBE05-722ED 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 defrosting. Detail Conditions for Starting Defrost The starting conditions are determined with the outdoor temperature and the outdoor heat exchanger temperature. The system is in heating operation. The compressor operates for 6 minutes.
Control Specification SiBE05-722ED 3.11 Electronic Expansion Valve Control During defrost control Frequency change under discharge pipe thermistor disconnection control Operation start Control Power on ; Compressor stop Status Discharge pipe thermistor disconnection The followings are the examples of electronic expansion valve control which function in each operation mode.
SiBE05-722ED 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 is equalized. 3.11.2 Pressure Equalizing Control When the compressor is stopped, the pressure equalizing control is activated. The electronic expansion valve opens, and develops the pressure equalization. 3.11.3 Opening Limit Control The maximum and minimum opening of the electronic expansion valve are limited.
Control Specification SiBE05-722ED 3.11.7 Discharge Pipe Thermistor Disconnection Control 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, operates for a specified time, and then stops.
SiBE05-722ED Control Specification 3.12 Malfunctions 3.12.1 Sensor Malfunction Detection Sensor malfunction can be detected in the following thermistors: 1. Outdoor heat exchanger thermistor 2. Discharge pipe thermistor 3. Radiation fin thermistor 4. Outdoor temperature thermistor 3.12.2 Detection of Overcurrent and Overload Outline An excessive output current is detected and the OL temperature is observed to protect the compressor.
SiBE05-722ED Part 5 Remote Controller 1. Remote Controller .................................................................................
SiBE05-722ED Remote Controller 1. Remote Controller Display (LCD) Signal transmitter • Displays the current settings. (In this illustration, each section is shown with all its displays on for the purpose of explanation.) ON OFF Receiver • 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. • The maximum distance for communication is approximately 7 m.
Remote Controller SiBE05-722ED Open the Front Cover MODE button • Selects the operation mode. (heat pump only) (heat pump only) FAN setting button QUIET button • Selects the airflow rate setting every time you press this button. • Starts OUTDOOR UNIT QUIET operation • OUTDOOR UNIT QUIET operation is not available in FAN and DRY operation • OUTDOOR UNIT QUIET operation and POWERFUL operation cannot be used at the same time. Priority is given to the function you pressed last.
SiBE05-722ED Part 6 Service Diagnosis 1. General Problem Symptoms and Check Items .....................................57 2. Troubleshooting with LED .....................................................................58 2.1 Indoor Unit..............................................................................................58 2.2 Outdoor Unit ...........................................................................................58 3. Service Diagnosis ............................................
General Problem Symptoms and Check Items SiBE05-722ED 1. General Problem Symptoms and Check Items Symptom Check Item The unit does not operate. Check the power supply. Check the type of the indoor unit. Check the outdoor temperature. Diagnose with remote controller indication. Operation sometimes stops. Details Reference Page Check if the rated voltage is supplied. Check if the indoor unit type is compatible with the outdoor unit.
SiBE05-722ED Troubleshooting with LED 2. Troubleshooting with LED 2.1 Indoor Unit Operation Lamp The operation lamp blinks 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. 2. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the diagnostic procedure described in the following pages. ON OFF Operation lamp (green) (R2974) Service Monitor 2.
Service Diagnosis SiBE05-722ED 3. Service Diagnosis 1. When the timer cancel button is held down for 5 seconds, 00 is displayed on the temperature display screen. Method 1 Timer cancel button < ARC433 Series > (R18206) 2. Press the timer cancel button repeatedly until a long beep sounds. The code indication changes in the sequence shown below. Note: 59 No. Code No. Code No.
SiBE05-722ED Method 2 Service Diagnosis 1. Press the center of the TEMP button and the MODE button at the same time to enter the diagnosis mode. (R4272) The left-side number blinks. (R14967) 2. Press the TEMP ▲ or TEMP ▼ button and change the number until you hear the two consecutive beeps or the long beep. (R4274) 3. Diagnose by the sound. ★ beep: The left-side number does not correspond with the error code.
Service Diagnosis SiBE05-722ED 5. Press the TEMP ▲ or TEMP ▼ button and change the number until you hear the long beep. (R4277) 6. Diagnose by the sound. ★ beep: The left-side number does not correspond with the error code. ★ two consecutive beeps: The left-side number corresponds with the error code but the right-side number does not. ★ long beep: Both the left-side and right-side numbers correspond with the error code. 7. Determine the error code.
SiBE05-722ED Troubleshooting 4. Troubleshooting 4.
Troubleshooting 4.2 SiBE05-722ED Indoor Unit PCB Abnormality A1 Error Code Method of Error Detection The system checks if the circuit works properly within the microcomputer of the indoor unit. Error Decision Conditions The system cannot set the internal settings.
SiBE05-722ED 4.3 Troubleshooting Freeze-up Protection Control / Heating Peak-cut Control Error Code A5 Method of Error Detection Freeze-up protection control Error Decision Conditions Freeze-up protection control During cooling operation, the freeze-up protection control (operation halt) is activated according to the temperature detected by the indoor heat exchanger thermistor.
Troubleshooting 4.4 SiBE05-722ED Fan Motor (AC Motor) or Related Abnormality Error Code A6 Method of Error Detection The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor operation. Error Decision Conditions The detected rotation speed does not reach the demanded rotation speed of the target tap, and is less than 50% of the maximum fan motor rotation speed. Supposed Causes 65 Power supply voltage is not as specified.
SiBE05-722ED Troubleshooting Check No.04 Refer to P.100 Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Check the power supply voltage. Is the voltage fluctuation within ±10% from the rated value? NO Correct the power supply. YES Start operation. Does the fan rotate? NO YES Check No. 04 Check Hall IC Turn off the power supply and rotate the fan by hand.
Troubleshooting 4.5 SiBE05-722ED Thermistor or Related Abnormality (Indoor Unit) Error Code C4, C9 Method of Error Detection The temperatures detected by the thermistors determine thermistor errors. Error Decision Conditions The thermistor input is 4.96 V and more or 0.04 V and less during compressor operation. Supposed Causes Disconnection of connector Defective thermistor Defective indoor unit PCB Troubleshooting Caution Check No.01 Refer to P.
SiBE05-722ED 4.6 Troubleshooting Refrigerant Shortage Error Code Method of Error Detection U0 Refrigerant shortage detection I: Refrigerant shortage is detected by checking the input current value and the compressor running frequency. If the refrigerant is short, the input current is lower than the normal value. Refrigerant shortage detection II: Refrigerant shortage is detected by checking the discharge pipe temperature and the opening of the electronic expansion valve.
Troubleshooting SiBE05-722ED Troubleshooting Caution Check No.01 Refer to P.99 Check No.12 Refer to P.101 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Any thermistor disconnected? NO Stop valve closed? YES ∗ Discharge pipe thermistor ∗ Indoor or outdoor heat exchanger thermistor ∗ Room temperature thermistor ∗ Outdoor temperature thermistor YES Replace the thermistor(s) in position. Open the stop valve.
SiBE05-722ED 4.7 Troubleshooting Low-voltage Detection or Over-voltage Detection Error Code U2 Method of Error Detection Low-voltage detection: An abnormal voltage drop is detected by the DC voltage detection circuit. Over-voltage detection: An abnormal voltage rise is detected by the over-voltage detection circuit. Error Decision Conditions Low-voltage detection: The voltage detected by the DC voltage detection circuit is below 180 V.
Troubleshooting SiBE05-722ED Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Check the power supply voltage. Is the voltage fluctuation within ±10% from the rated value? NO Correct the power supply. YES Check the connection of the compressor harness. Loose or disconnected? YES Reconnect the harness. NO Does the outdoor fan rotate smoothly? NO Replace the outdoor fan motor and the outdoor unit PCB.
SiBE05-722ED 4.8 Troubleshooting Signal Transmission Error (Between Indoor Unit and Outdoor Unit) Error Code U4 Method of Error Detection The data received from the outdoor unit in signal transmission is checked whether it is normal. Error Decision Conditions The data sent from the outdoor unit cannot be received normally, or the content of the data is abnormal.
Troubleshooting SiBE05-722ED Troubleshooting Caution Check No.11 Refer to P.100 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Check the power supply voltage. Is the voltage fluctuation within ±10% from the rated value? NO Correct the power supply. YES Check the indoor unit - outdoor unit connection wires. Is there any wiring error? YES Correct the indoor unit outdoor unit connection wires.
SiBE05-722ED 4.9 Troubleshooting Unspecified Voltage (Between Indoor Unit and Outdoor Unit) Error Code UA Method of Error Detection The supply power is detected for its requirements (pair type is different from multi type) by the indoor / outdoor transmission signal. Error Decision Conditions The pair type and multi type are interconnected.
Troubleshooting SiBE05-722ED 4.10 Outdoor Unit PCB Abnormality Error Code E1 Method of Error Detection The system checks if the microprocessor is working in order. The system checks if the zero-cross signal comes in properly. Error Decision Conditions The microprocessor program runs out of control. The zero-cross signal is not detected.
SiBE05-722ED Troubleshooting 4.11 OL Activation (Compressor Overload) Error Code E5 Method of Error Detection A compressor overload is detected through compressor OL. Error Decision Conditions If the error repeats, the system is shut down.
Troubleshooting SiBE05-722ED Troubleshooting Caution Check No.01 Refer to P.99 Check No.12 Refer to P.101 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Discharge pipe thermistor disconnected? NG ∗ Discharge pipe thermistor Replace the discharge pipe thermistor. OK Connectors are properly connected? Check No.14 Refer to P.102 Insert the thermistor in position. NO Check No. 01 Check the thermistors. Check No.13 Refer to P.
SiBE05-722ED Troubleshooting 4.12 Compressor Lock Error Code E6 Method of Error Detection A compressor lock is detected by checking the compressor running condition through the position detection circuit. Error Decision Conditions A compressor lock is detected by the current waveform generated when applying high- frequency voltage to the motor. If the error repeats, the system is shut down.
Troubleshooting SiBE05-722ED 4.13 DC Fan Lock Error Code E7 Method of Error Detection An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC. Error Decision Conditions The fan does not start in about 15 ~ 60 seconds even when the fan motor is running. If the error repeats, the system is shut down.
SiBE05-722ED Troubleshooting 4.14 Input Overcurrent Detection Error Code E8 Method of Error Detection An input overcurrent is detected by checking the input current value with the compressor running. Error Decision Conditions The current exceeds about 9.25 A for 2.5 seconds with the compressor running. (The upper limit of the current decreases when the outdoor temperature exceeds a certain level.) Supposed Causes Outdoor temperature is out of operation range.
Troubleshooting SiBE05-722ED 4.15 Four Way Valve Abnormality Error Code EA Method of Error Detection The room temperature thermistor and the indoor heat exchanger thermistor are checked if they function within their normal ranges in each operation mode. Error Decision Conditions A following condition continues over 10 minutes after operating for 5 minutes.
SiBE05-722ED Troubleshooting Troubleshooting Caution Check No.01 Refer to P.99 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Four way valve coil disconnected (loose)? YES Correct the four way valve coil. NO Check No.13 Refer to P.102 Harness disconnected? YES Reconnect the harness. NO Check No.14 Refer to P.102 Check the continuity of the four way valve coil and harness. Disconnect the harness from the connector.
Troubleshooting SiBE05-722ED 4.16 Discharge Pipe Temperature Control Error Code F3 Method of Error Detection An error is determined with the temperature detected by the discharge pipe thermistor. Error Decision Conditions If the temperature detected by the discharge pipe thermistor rises above A°C, the compressor stops. The error is cleared when the discharge pipe temperature has dropped below B°C.
SiBE05-722ED Troubleshooting 4.17 High Pressure Control in Cooling Error Code F6 Method of Error Detection High-pressure control (operation halt, frequency drop, etc.) is activated in cooling operation if the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit. Error Decision Conditions The temperature sensed by the outdoor heat exchanger thermistor rises above about 65°C. The error is cleared when the temperature drops below about 50 ~ 55°C.
Troubleshooting SiBE05-722ED 4.18 Compressor System Sensor Abnormality Error Code H0 Method of Error Detection The system checks the DC current before the compressor starts. Error Decision Conditions The DC current before compressor start-up is out of the range 0.5 ~ 4.5 V (sensor output converted to voltage value) The DC voltage before compressor start-up is below 50 V.
SiBE05-722ED Troubleshooting 4.19 Position Sensor Abnormality Error Code H6 Method of Error Detection A compressor start-up failure is detected by checking the compressor running condition through the position detection circuit. Error Decision Conditions If the error repeats, the system is shut down.
Troubleshooting SiBE05-722ED Troubleshooting Caution Check No.15 Refer to P.103 Check No.18 Refer to P.106 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Turn off the power. Check the power supply voltage. Voltage as rated? Check No.20 Refer to P.107 NO Correct the power supply. YES Check No. 18 Check the discharge pressure. OK? NO Replace the stop valve. YES Check No. 20 Check the short circuit of the diode bridge.
SiBE05-722ED Troubleshooting 4.20 DC Voltage / Current Sensor Abnormality Error Code H8 Method of Error Detection DC voltage or DC current sensor abnormality is identified based on the compressor running frequency and the input current. Error Decision Conditions If the error repeats, the system is shut down.
Troubleshooting SiBE05-722ED 4.21 Thermistor or Related Abnormality (Outdoor Unit) Error Code H9, J3, J6, P4 Method of Error Detection This fault is identified based on the thermistor input voltage to the microcomputer. A thermistor fault is identified based on the temperature sensed by each thermistor. Error Decision Conditions The thermistor input voltage is 4.96 V and more, or 0.04 V and less with the power on.
SiBE05-722ED Troubleshooting Troubleshooting In case of RK(X)S25/35E2V1B In case of H9, J3, J6 for RK(X)S25/35G2V1B, RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25K3V1B, RXS35K2V1B, RXS35L2V1B Check No.01 Refer to P.99 Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Turn on the power again. Error displayed again on remote controller? NO Reconnect the connectors or thermistors. YES Check No. 01 Check the thermistor resistance value.
Troubleshooting SiBE05-722ED 4.22 Electrical Box Temperature Rise Error Code L3 Method of Error Detection An electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off. Error Decision Conditions With the compressor off, the radiation fin temperature is above A°C. The error is cleared when the radiation fin temperature drops below B°C.
SiBE05-722ED Troubleshooting Check No.01 Refer to P.99 Troubleshooting RK(X)S25/35E2V1B Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. WARNING Turn off the power and turn it on again. To cool the electrical components, the outdoor fan starts when the radiation fin temperature rises above C˚C and stops when it drops below B˚C. Check No.17 Refer to P.105 YES Error again or outdoor fan activated? Check No.19 Refer to P.
Troubleshooting Troubleshooting SiBE05-722ED RK(X)S25/35G2V1B, RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25K3V1B, RXS35K2V1B, RXS35L2V1B Caution Check No.17 Refer to P.105 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. WARNING To cool the electrical components, the outdoor fan starts when the radiation fin temperature rises above C °C and stops when it drops below B °C. Turn off the power and turn it on again. Check No.19 Refer to P.
SiBE05-722ED Troubleshooting 4.23 Radiation Fin Temperature Rise Error Code L4 Method of Error Detection A radiation fin temperature rise is detected by checking the radiation fin thermistor with the compressor on. Error Decision Conditions If the radiation fin temperature with the compressor on is above A°C. The error is cleared when the radiation fin temperature drops below B°C. If the error repeats, the system is shut down.
Troubleshooting Troubleshooting SiBE05-722ED RK(X)S25/35E2V1B Caution Check No.01 Refer to P.99 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Turn off the power and turn it on again to start the system. Check No.17 Refer to P.105 Error displayed again? Check No.19 Refer to P.106 YES NO Has the PCB been replaced? YES NO Check if silicon grease is applied properly on the radiation fin. If not, apply the silicon grease.
SiBE05-722ED Troubleshooting Troubleshooting RK(X)S25/35G2V1B, RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25K3V1B, RXS35K2V1B, RXS35L2V1B Caution Check No.17 Refer to P.105 Check No.19 Refer to P.106 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Turn off the power and turn it on again to start the system. Error displayed again? YES Has the PCB been replaced? NO YES NO Check if silicon grease is applied properly on the radiation fin.
Troubleshooting SiBE05-722ED 4.24 Output Overcurrent Detection Error Code L5 Method of Error Detection An output overcurrent is detected by checking the current that flows in the inverter DC section. Error Decision Conditions A position signal error occurs while the compressor is running. A rotation speed error occurs while the compressor is running. An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer.
SiBE05-722ED Troubleshooting Troubleshooting Caution Check No.15 Refer to P.103 Check No.17 Refer to P.105 Check No.18 Refer to P.106 Check No.22 Refer to P.109 Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. ∗ An output overcurrent may result from wrong internal wiring. If the system is interrupted by an output overcurrent after the wires have been disconnected and reconnected for part replacement, check the wiring again. Check No.
Check SiBE05-722ED 5. Check 5.1 Thermistor Resistance Check Check No.01 Disconnect the connectors of the thermistors from the PCB, and measure the resistance of each thermistor using multimeter. The data is for reference purpose only. Thermistor temperature (°C) –20 Resistance (kΩ) 197.8 –15 –10 148.2 112.1 –5 0 85.60 65.93 5 10 51.14 39.99 15 20 31.52 25.02 25 30 20.00 16.10 35 40 13.04 10.62 45 50 8.707 7.
SiBE05-722ED 5.2 Check Hall IC Check Check No.04 1. Check the connector connection. 2. With the power on, operation off, and the connector connected, check the following. ∗Output voltage of about 5 V between pins 1 and 3. ∗Generation of 3 pulses between pins 2 and 3 when the fan motor is operating. If NG in step 1 Æ Defective PCB Æ Replace the PCB. If NG in step 2 Æ Defective Hall IC Æ Replace the fan motor. If OK in both steps 1 and 2 Æ Replace the PCB.
Check 5.4 SiBE05-722ED Electronic Expansion Valve Check Check No.12 Conduct the followings to check the electronic expansion valve (EV). 1. Check if the EV connector is correctly connected to the PCB. 2. Turn the power off and on again, and check if the EV generates a latching sound. 3. If the EV does not generate a latching sound in the above step 2, disconnect the connector and check the continuity using a multimeter. 4.
SiBE05-722ED 5.5 Check Four Way Valve Performance Check Check No.13 Turn the power off and then on again. Start heating operation. S80 voltage at 220 - 240 VAC with compressor on? (Fig. 1) ∗ Four way valve coil Cooling / Dry : No continuity Heating : Continuity NO Replace the outdoor unit PCB. YES Disconnect the four way valve coil from the connector and check the continuity. Four way valve coil resistance at 1000 ~ 2000 Ω? NO Replace the four way valve coil. YES Replace the four way valve.
Check 5.7 SiBE05-722ED Inverter Analyzer Check Check No.15 Characteristics Inverter analyzer: RSUK0917C If an abnormal stop occurs due to compressor startup failure or overcurrent output when using an inverter unit, it is difficult to judge whether the stop is caused by the compressor failure or some other failure (main PCB, power module, etc.). The inverter analyzer makes it possible to judge the cause of trouble easily and securely.
SiBE05-722ED Check Diagnose method (Diagnose according to 6 LEDs lighting status.) (1) If all the LEDs are lit uniformly, the compressor is defective. → Replace the compressor. (2) If the LEDs are not lit uniformly, check the power module. → Refer to Check No.22. (3) If NG in Check No.22, replace the power module. (Replace the main PCB. The power module is united with the main PCB.) If OK in Check No.22, check if there is any solder cracking on the PCB.
Check SiBE05-722ED RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25K3V1B, RXS35K2V1B, RXS35L2V1B 1. Check that the voltage between the pins 10 - 11 is 15 VDC. 2. Check if the Hall IC generates the rotation pulse (0 ~ 15 VDC) 4 times between the pins 10 12, 10 - 13, when the fan motor is manually rotated once. S70 13 HV (Hall IC) 12 HU (Hall IC) 11 Control voltage 15 VDC 10 9 Free pin 8 Free pin Phase W 7 6 Free pin 5 Free pin Phase V 4 3 Free pin 2 Free pin Phase U 1 (R19663) 5.
SiBE05-722ED Check 5.10 Discharge Pressure Check Check No.18 Discharge pressure check High? NO Replace the compressor. YES Is the stop valve open? NO Open the stop valve. YES Is the connection pipe deformed? YES Replace the pipe installed at the site. NO Is the air filter or indoor / outdoor heat exchanger dirty? YES NO Replace the compressor. Clean the dirty air filter or indoor / outdoor heat exchanger. (R19385) 5.11 Outdoor Fan System Check Check No.
Check SiBE05-722ED 5.12 Main Circuit Short Check Check No.20 Note: Check to make sure that the voltage between (+) and (–) of the diode bridge (DB1) is approximately 0 V before checking. Measure the resistance between the pins of the DB1 referring to the table below. If the resistance is ∞ or less than 1 kΩ, short circuit occurs on the main circuit.
SiBE05-722ED Check RK(X)S25/35G2V1B 4 3 2 1 + ~ ~ – – + Multimeter (R19665) 2 3 4 – ~ ~ + 1 – + RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25K3V1B, RXS35K2V1B, RXS35L2V1B Multimeter (R19666) Service Diagnosis 108
Check SiBE05-722ED 5.13 Power Module Check Check No.22 Note: Check to make sure that the voltage between (+) and (–) of the power module or the diode bridge is approximately 0 V before checking. Disconnect the compressor harness connector from the outdoor unit PCB. To disengage the connector, press the protrusion on the connector.
SiBE05-722ED Check RK(X)S25/35G2V1B Diode bridge (R19946) RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25K3V1B, RXS35K2V1B, RXS35L2V1B Diode bridge Service Diagnosis (R19947) 110
SiBE05-722ED Part 7 Trial Operation and Field Settings 1. 2. 3. 4. Pump Down Operation........................................................................112 Forced Cooling Operation ...................................................................113 Trial Operation ....................................................................................114 Field Settings ......................................................................................115 4.1 When 2 Units are Installed in 1 Room...
SiBE05-722ED Pump Down Operation 1. Pump Down Operation Outline In order to protect the environment, be sure to conduct pump down operation when relocating or disposing of the unit. Detail 1) Remove the valve caps from the liquid stop valve and the gas stop valve. 2) Carry out forced cooling operation. 3) After 5 to 10 minutes, close the liquid stop valve with a hexagonal wrench. 4) After 2 to 3 minutes, close the gas stop valve and stop the forced cooling operation.
Forced Cooling Operation SiBE05-722ED 2. Forced Cooling Operation Item Conditions Forced Cooling The forced cooling operation is allowed when both of the following conditions are met. 1) The outdoor unit is not abnormal and not in the 3-minute standby mode. 2) The outdoor unit is not operating. Start Command frequency End Others The forced cooling operation starts when any of the following conditions is fulfilled.
SiBE05-722ED Trial Operation 3. Trial Operation Outline 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. Trial operation should be carried out in either cooling or heating operation. Detail 1. Measure the power supply voltage and make sure that it falls within the specified range. 2.
Field Settings SiBE05-722ED 4. Field Settings 4.1 When 2 Units are Installed in 1 Room Outline When 2 indoor units are installed in 1 room, 1 of the 2 indoor units and the corresponding wireless remote controller can be set for different addresses. Both the indoor unit PCB and the wireless remote controller need alteration. Indoor Unit PCB Cut the address setting jumper JA on the control PCB.
SiBE05-722ED 4.2 Field Settings Facility Setting Jumper (cooling at low outdoor temperature) Outline 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). Detail You can expand the operation range to –15°C by cutting the jumper on the outdoor unit PCB. If the outdoor temperature falls to –20°C or lower, the operation stops.
Field Settings 4.3 SiBE05-722ED Jumper and Switch Settings Jumper Function Jumper Fan speed setting when compressor stops for thermostat OFF. (effective only in cooling operation) Power failure recovery function JB (on indoor unit PCB) Improvement of defrost performance Caution JC (on indoor unit PCB) When connected (factory setting) Fan speed setting; Remote controller setting Auto-restart J5 Standard control (on outdoor unit PCB) When cut The fan stops.
SiBE05-722ED Silicon Grease on Power Transistor / Diode Bridge 5. Silicon Grease on Power Transistor / Diode Bridge Outline Apply the specified silicon grease to the heat radiation part of a power transistor / diode bridge when you replace an outdoor unit PCB. The silicon grease encourages the heat radiation of a power transistor / diode bridge. Detail 1. 2. 3. 4. Wipe off the old silicon grease completely. Apply the silicon grease evenly. See the illustrations below for examples of application.
SiBE05-722ED Part 8 Appendix 1. Piping Diagrams..................................................................................120 1.1 Indoor Unit............................................................................................120 1.2 Outdoor Unit .........................................................................................121 2. Wiring Diagrams..................................................................................123 2.1 Indoor Unit.....................................
SiBE05-722ED Piping Diagrams 1. Piping Diagrams 1.1 Indoor Unit FLKS25/35BAVMB FLXS25/35BAVMB, FLXS35BAVMB9 INDOOR UNIT INDOOR UNIT (6.4CuT) (6. 4CuT) HEAT EXCHANGER HEAT EXCHANGER FIELD PIPING (6. 4CuT) SIROCCO FAN THERMISTOR ON HEAT EXCH. FIELD PIPING (6.4CuT) M FAN MOTOR M FAN MOTOR FIELD PIPING (9. 5CuT) FIELD PIPING (9.5CuT) (9. 5CuT) (9.5CuT) REFRIGERANT FLOW COOLING HEATING REFRIGERANT FLOW COOLING 4D034012E Appendix SIROCCO FAN THERMISTOR ON HEAT EXCH.
Piping Diagrams 1.2 SiBE05-722ED Outdoor Unit 1.2.1 Cooling Only RKS25/35E2V1B OUTDOOR UNIT OUTDOOR TEMPERATURE THERMISTOR 9.5CuT 7.0CuT HEAT EXCHANGER 7.0CuT 4.8CuT MUFFLER WITH FILTER M MOTOR OPERATED VALVE MUFFLER WITH FILTER 9.5CuT PROPELLER FAN φ. 4.0×ID. 2.0CuT HEAT EXCHANGER THERMISTOR 4.8CuT 6.4CuT 6.4CuT 9.5CuT FOUR WAY VALVE NORMALLY : OFF 9.5CuT 7.9CuT 6.4CuT MUFFLER WITH FILTER LIQUID STOP VALVE 7.9CuT MUFFLER DISCHARGE PIPE THERMISTOR 9.5CuT 9.
SiBE05-722ED Piping Diagrams 1.2.2 Heat Pump RXS25/35E2V1B OUTDOOR UNIT OUTDOOR TEMPERATURE THERMISTOR 9.5CuT 7.0CuT HEAT EXCHANGER 7.0CuT 4.8CuT MUFFLER WITH FILTER M MOTOR OPERATED VALVE φ.4.0xID.2.0CuT HEAT EXCHANGER THERMISTOR 4.8CuT 6.4CuT 6.4CuT MUFFLER WITH FILTER 9.5CuT PROPELLER FAN 9.5CuT 7.9CuT FOURWAY VALVE ON:HEATING 9.5CuT 6.4CuT MUFFLER WITH FILTER LIQUID STOP VALVE MUFFLER FIELD PIPING (6.4CuT) 7.9CuT DISCHARGE PIPE THERMISTOR 9.5CuT 9.
Wiring Diagrams SiBE05-722ED 2. Wiring Diagrams 2.1 Indoor Unit FLK(X)S25/35BAVMB, FLXS35BAVMB9 PCB3 PCB1 S25 LED H1P LED H2P PCB2 S37 S24 H1 S36 X1M Fu 3.15A LED H3P WHT H2 PCB4 1 1 2 3 BLK RED 2 → 3 OUTDOOR GRN/YLW C70 FIELD WIRING. TRANSMISSION H3 CIRCUIT S1W CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN.
SiBE05-722ED Wiring Diagrams RK(X)S25/35G2V1B FIELD WIRING. S MRM10 V2 GRN/YLW L HL2 MR30 SA1 S11 YLW 9 PCB1 E2 MR30_A V1 + FU2 C118 3.15A - W V PCB2 S10 2 S50 1 S20 1 S30 1 MRCW 6 2 S40 S90 1 S80 3 1 1 S70 1 2 3 4 6 3 7 1 WHT YLW ORG BLU BRN RED BLK BLK U 1 BLK BLK 4 outdoor C6 ~ - FU1 9 3.15A MR30_B BRN BRN Z2C N=2 GRY + BLU GRN E1 - HL3 WHT BLK BLK BLK BLK BLK BLK BLK BLK 1 + C5 DB2 ~ + ~ - BLU V3 N HN3 HN2 NOTE 1.
Revision History Month / Year Version Revised contents 01 / 2007 SiBE05-722 05 / 2010 SiBE05-722_A Model addition: RK(X)S25/35G2V1B, RK(X)S25/35G2V1B9 01 / 2011 SiBE05-722_B Model addition: RXS25/35J2V1B 12 / 2012 SiBE05-722_C Model addition: RXS25K3V1B, RXS35K2V1B 01 / 2014 SiBE05-722ED Model addition: FLXS35BAVMB9, RXS35L2V1B First edition
Warning z Daikin products are manufactured for export to numerous countries throughout the world. Prior to purchase, please confirm with your local authorised importer, distributor and/or retailer whether this product conforms to the applicable standards, and is suitable for use, in the region where the product will be used. This statement does not purport to exclude, restrict or modify the application of any local legislation. z Ask a qualified installer or contractor to install this product.
