SiEBE18-526 1. Introduction ................... vii 1.1 Safety Cautions ..................vii Part 1 List of Functions ..............1 1. List of Functions ..................2 Part 2 Specifications ..............7 1. Specifications ..................8 1.1 Outdoor Units ...................8 1.2 BP Unit .....................9 1.3 Indoor Units ....................10 Part 3 Printed Circuit Board Connector Wiring Diagram ...
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SiEBE18-526 3.4 Pump-down Residual Operation ............65 3.5 Restart Standby..................65 3.6 Stopping Operation ................66 3.7 Pressure Equalization Prior to Startup ...........66 4. Protection Control .................67 4.1 High Pressure Protection Control............67 4.2 Low Pressure Protection Control............69 4.3 Discharge Pipe Protection Control ............70 4.4 Inverter Protection Control ..............71 4.5 Freeze-up Protection Control ..............72 4.6 Dew Condensation Prevention Control ..........73...
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SiEBE18-526 4.7 Maintenance Mode Setting..............137 5. Test Operation and Field Setting for RA Indoor Unit......138 5.1 Test Operation from the Remote Controller .........138 5.2 Jumper Settings ...................139 Part 7 System Configuration............. 141 1. System Configuration................142 1.1 Operation Instructions ................142 2. Instruction....................143 2.1 RMXS Series..................143 2.2 Wall Mounted, Duct, Floor/Ceiling, Floor Standing Type .....144 2.3 Ceiling Mounted Cassette Type ............216...
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SiEBE18-526 5.15 Check ....................285 6. Troubleshooting for BP Unit ..............287 6.1 Malfunction of Electronic Expansion Valve ..........287 6.2 Faulty BP Unit PCB ................288 6.3 Faulty BP Liquid or Gas Pipe Thermistor ..........289 6.4 Transmission Error between Indoor Unit and BP Unit......290 6.5 Transmission Error between Outdoor Unit and BP Unit.......292 6.6 Check ....................293 7.
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SiEBE18-526 2.2 Removal of Solenoid Valve Coil ............356 Part 10 Appendix................. 359 1. Piping Diagrams..................360 1.1 Outdoor Units ..................360 1.2 BP Units ....................361 1.3 Indoor Units ..................362 2. Wiring Diagrams..................367 2.1 Outdoor Units ..................367 2.2 BP Units ....................368 2.3 Indoor Units ..................369 Table of Contents...
SiEBE18-526 Introduction 1. Introduction Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work. Warnings The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely.
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Introduction SiEBE18-526 Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock. Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical shocks.
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SiEBE18-526 Introduction Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire.
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Introduction SiEBE18-526 Warning Do not use a joined power cable or extension cable, or share the same power outlet with other electrical appliances, since it can cause an electrical shock, excessive heat generation or fire. 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.
List of Functions SiEBE18-526 1. List of Functions Category Functions Category Functions Basic Function Health & Clean Air Purifying Filter with Bacteriostatic & Inverter (with Inverter Power Control) — Virustatic Functions –5 Operation Limit for Cooling (°CDB) Photocatalytic Deodorizing Filter —...
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SiEBE18-526 List of Functions Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — — Virustatic Functions Operation Limit for Cooling (°CDB) — — — Basic Operation Limit for Heating (°CWB) — — — Photocatalytic Deodorizing Filter —...
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List of Functions SiEBE18-526 Category Functions Category Functions Basic Health & Air Purifying Filter with Bacteriostatic & Inverter (with Inverter Power Control) — — — Function Clean Virustatic Functions Operation Limit for Cooling (°CDB) — — — Photocatalytic Deodorizing Filter —...
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SiEBE18-526 List of Functions Category Functions Category Functions Basic Function Health & Clean Air Purifying Filter with Bacteriostatic & Inverter (with Inverter Power Control) Virustatic Functions Operation Limit for Cooling (°CDB) — — Photocatalytic Deodorizing Filter Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
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List of Functions SiEBE18-526 Category Functions Category Functions Basic Health & Air Purifying Filter with Bacteriostatic & Inverter (with Inverter Power Control) — — Function Clean Virustatic Functions Operation Limit for Cooling (°CDB) — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
SiEBE18-526 Part 2 Specifications 1. Specifications ..................8 1.1 Outdoor Units ...................8 1.2 BP Unit .....................9 1.3 Indoor Units ....................10 Specifications...
SiEBE18-526 Specifications BP Unit 50Hz 230V Model BPMKS967A2B, BPMKS967B2B BPMKS967A3B, BPMKS967B3B Connectable Indoor Units 1~2 Units 1~3 Units Casing Color Paintingless Power Consumption Running Current 0.05 0.05 Refrigerant Type R410A Dimension (H×W×D) 180×294(650)*×350 Package Dimension (H×W×D) 257×738×427 Machine Weight Gross Weight Number of Wiring Connections 4 for Interunit Wiring Main : φ9.5×1/ Branch : φ6.4×2...
SiEBE18-526 Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram........20 1.1 Outdoor Unit RMXS 112/140/160 D7V3B ..........20 1.2 Branch Provider Unit BPMKS967A2B, B2B, A3B, B3B ......24 1.3 Wall Mounted Type 20/25/35/50 Class - D Series .........25 1.4 Wall Mounted Type 20/25/35 Class - C Series ........27 1.5 Wall Mounted Type 50/60/71 Class - B Series........29 1.6 Duct Connected Type................31...
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Printed Circuit Board Connector Wiring Diagram SiEBE18-526 1.1.2 Inverter PCB (A2P) Connectors 1) X60A Connector for High Pressure Switch 2) X205A Connector for Control PCB (A1P) 3) X206A Connector for Fan Motor (Upper Side) 4) X207A Connector for Fan Motor (Lower Side) 5) LC, NC Terminal for Filter PCB (A3P) PCB Detail...
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SiEBE18-526 Printed Circuit Board Connector Wiring Diagram 1.1.3 Filter PCB (A3P) Connectors 1) X1A Connector for Control PCB (A1P) 2) LA, NA Terminal for X1M (Power Supply Terminal Strip) 3) LB, NB Terminal for Inverter PCB (A2P) Note: Other Designation 1) F1U Fuse (250V 6.3A) 2) GND...
Printed Circuit Board Connector Wiring Diagram SiEBE18-526 Branch Provider Unit BPMKS967A2B, B2B, A3B, B3B Connectors 1) X20A Connector for Bypass Electronic Expansion Valve 2) X21A to X23A Connector for Electronic Expansion Valve to Room A, B and C 3) X90A Connector for Thermistors Note: Other Designations...
SiEBE18-526 Printed Circuit Board Connector Wiring Diagram Wall Mounted Type 20/25/35/50 Class - D Series Connectors PCB(1) (Control PCB) 1) S1 Connector for DC fan motor 2) S6 Connector for swing motor (horizontal blades) 3) S21 Connector for centralized control (HA) 4) S26 Connector for display PCB 5) S28...
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Printed Circuit Board Connector Wiring Diagram SiEBE18-526 PCB Detail PCB(1): Control PCB LED A (R4288) PCB(2): Signal Receiver PCB PCB(3): Display PCB LED1 LED2 LED3 RTH1 (R4289) (R4290) PCB(4): INTELLIGENT EYE sensor PCB (R4291) Printed Circuit Board Connector Wiring Diagram and Name...
SiEBE18-526 Printed Circuit Board Connector Wiring Diagram Wall Mounted Type 20/25/35 Class - C Series Connectors PCB(1) (Control PCB) 1) S1 Connector for fan motor 2) S6 Connector for swing motor (Horizontal Flap) 3) S7 Connector for AC fan motor 4) S21 Connector for centralized control to 5 rooms 5) S26...
SiEBE18-526 Printed Circuit Board Connector Wiring Diagram Wall Mounted Type 50/60/71 Class - B Series Connectors PCB(1) (Control PCB) 1) S1 Connector for DC fan motor 2) S6 Connector for swing motor (horizontal blades) 3) S8 Connector for swing motor (vertical blades) 4) S21 Connector for centralized control (HA) 5) S26...
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Printed Circuit Board Connector Wiring Diagram SiEBE18-526 PCB Detail PCB(1): Control PCB (indoor unit) LED A (R2860) PCB(2): Signal Receiver PCB PCB(3): Buzzer PCB (R2861) RTH1 (R2862) PCB(4): Display PCB PCB(5): Intelligent Eye sensor PCB LED1 LED2 LED3 (R2863) (R2864) Printed Circuit Board Connector Wiring Diagram and Name...
SiEBE18-526 Printed Circuit Board Connector Wiring Diagram Duct Connected Type Connectors PCB(1) (Control PCB) 1) S1 Connector for AC fan motor 2) S7 Connector for AC fan motor 3) S21 Connector for centralized control to 5 rooms 4) S26 Connector for display PCB 5) S32 Connector for heat exchanger thermistor PCB(2) (Display PCB)
Printed Circuit Board Connector Wiring Diagram SiEBE18-526 Floor / Ceiling Suspended Dual Type Connectors PCB(1) (Control PCB) 1) S6 Connector for swing motor (horizontal swing) 2) S7 Connector for AC fan motor 3) S21 Connector for centralized control 4) S24 Connector for display PCB 5) S26 Connector for signal receiver PCB...
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SiEBE18-526 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB (1): Control PCB Fb Free LED A 12V Check 5V Check 2P084352E PCB Detail PCB (2): Power Supply PCB Pb Free 2P084361E Printed Circuit Board Connector Wiring Diagram and Name...
SiEBE18-526 Printed Circuit Board Connector Wiring Diagram Floor Standing Type Connectors PCB(1) (Power Supply PCB) 1) S8, S202, Connector for control PCB S204 PCB(2) (Control PCB) 1) S6 Connector for swing motor and lower air outlet motor 2) S21 Connector for centralized control 3) S23 Connector for display PCB 4) S31, S32...
Refrigerant Circuit SiEBE18-526 1. Refrigerant Circuit RMXS 112/140/160 D7V3B No. in refrigerant Symbol Name Major Function system diagram Inverter compressor is operated on frequencies between 52 Hz and 190 Hz by using Inverter compressor (INV) the inverter. 25 steps Since the system is of air heat exchanging type, the fan is operated at 8-step rotation Inverter fan speed by using the inverter.
Refrigerant Circuit SiEBE18-526 BPMKS 967 A2B, B2B, A3B, B3B No. in refrigerant Symbol Name Major Function system diagram Electronic expansion valve Among EVA, EVB and EVC, the electronic expansion valve of operating room is called (for operating room) EVU. Electronic expansion valve Among EVA, EVB and EVC, the electronic expansion valve of stopping room is called (for stopping room) EVT.
Operation Mode SiEBE18-526 1. Operation Mode Operation in stop mode Indoor unit stop or Indoor unit thermostat ON thermostat OFF Malfunction/Standby Restart standby Pressure (Compressor stop) equalization prior to startup Malfunction/ Standby Indoor unit stop or thermostat OFF Startup control •...
SiEBE18-526 Basic Control 2. Basic Control Normal Operation Cooling Operation Actuator Operation Remarks Used for high pressure protection control, low pressure protection control, discharge pipe temperature protection control, compressor Compressor Compressor PI control operating frequency upper limit control with inverter protection control, dew prevention control, and freeze-up protection control.
Basic Control SiEBE18-526 Compressor PI Control Compressor PI Control Carries out the compressor capacity PI control to maintain Te at constant during cooling operation and Tc at constant during heating operation to ensure stable unit performance. [Cooling operation] Controls compressor capacity to adjust Te to Te : Low pressure equivalent saturation achieve target value (TeS).
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SiEBE18-526 Basic Control ∆D Control Receiving the capacity request signal from the indoor unit, the outdoor unit corrects its target pressure for capacity control. Controls ∆D signal from indoor unit as follows. UP control : When the UP command come from more than one indoor unit among thermostat-ON indoor units.
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Basic Control SiEBE18-526 Heating Operation TcS = TcS initial value + KTc2 KTc2 : Correction value by ∆D signal in heating. KTc2 = 0 (without correction) During compressor frequency PI Not during compressor frequency PI control (KTc2 = 0) control ∆...
SiEBE18-526 Basic Control Electronic Expansion Valve PI Control Main Electronic Expansion Valve EV1 Control Carries out the electronic expansion valve (Y1E) PI control to maintain the evaporator outlet superheated degree (SH) at constant during heating operation to make maximum use of the outdoor unit heat exchanger (evaporator).
Basic Control SiEBE18-526 Cooling Operation Fan Control In cooling operation with low outdoor air temperature, this control is used to provide the adequate amount of circulation air with liquid pressure secured by high pressure control using outdoor unit fan. Outline In cooling operation fan control, outdoor unit fans are controlled by PI control to come the cooling Tc to 34°C.
SiEBE18-526 Special Control 3. Special Control Startup Control On activation, following control is performed to lighten load of the compressor by back liquid and the like. Also, the position of the four way valve is defined. 3.1.1 Startup Control in Cooling Operation Actuator Operation Remarks...
Special Control SiEBE18-526 Oil Return Operation Oil flown from the compressor to the side of system is collected by oil-returning operation, in case of that oil in the compressor runs down. 3.2.1 Oil Return Operation in Cooling Operation [Conditions to start] The cooling oil-returning operation is started referring following conditions.
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SiEBE18-526 Special Control 3.2.2 Oil Return Operation in Heating Operation [Conditions to start] The heating oil-returning operation is started referring following conditions. Integrated amount of displaced oil Timer (After the power is turned on, integrated operating-time is 2 hours and subsequently every 8 hours.) In addition, integrated amount of displaced oil is derived from Tc, Te, and the compressor load.
Special Control SiEBE18-526 Defrosting Operation The defrost operation is performed to solve frost on the outdoor unit heat exchanger when heating, and the heating capacity is recovered. [Conditions to start] The defrost operation is started referring following conditions. Outdoor heat exchanger heat transfer co-efficiency Temperature of heat-exchange (Tb) Low pressure equivalent saturation temperature (Te) Timer (2 hours at the minimum)
SiEBE18-526 Special Control Pump-down Residual Operation When activating compressor, if the liquid refrigerant remains in the heat-exchanger, the liquid enters into the compressor and dilutes oil therein resulting in decrease of lubricity. Therefore, the pump-down residual operation is performed to collect the refrigerant in the heat- exchanger when the compressor is down.
Special Control SiEBE18-526 Stopping Operation 3.6.1 When System is in Stop Mode Actuator Operation Compressor Outdoor unit fan Four way valve Keep former condition. Main electronic expansion valve (EV1) 0 pls Subcooling electronic expansion valve (EV2) 0 pls Hot gas bypass valve (SVP) Receiver gas discharging valve (SVG) Ending conditions Indoor unit thermostat is turned ON.
SiEBE18-526 Protection Control 4. Protection Control High Pressure Protection Control This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of high pressure. In cooling operation Pc >...
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Protection Control SiEBE18-526 In heating operation High pressure not limited • INV upper limit frequency & • Pc≤2.95MPa • During heating normal operation • During oil return operation • Not during oil return operation • After oil return operation • Not after oil return operation &...
SiEBE18-526 Protection Control Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure. In cooling operation Low pressure not limited Pe: LP pressure sensor detection value < > 0.25MPa 0.4MPa Low pressure SVP=OFF...
Protection Control SiEBE18-526 Discharge Pipe Protection Control This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature. INV compressor HTdi: Value of INV compressor discharge pipe temperature (Tdi) compensated with outdoor air temperature Value of compressor port temperature calculated by Tc and Te, and suction...
SiEBE18-526 Protection Control Inverter Protection Control Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction, or transient inverter overcurrent, and fin temperature increase. Inverter overcurrent protection control Not limited • Inverter current≤23.8A &...
Protection Control SiEBE18-526 Freeze-up Protection Control Outline According to the freeze prevention status sent from the BP unit. The compressor output frequency is regulated to decrease the compressor capacity in order to prevent the indoor heat exchanger from freezing. Detail Zones are produced based on the freeze prevention status signal sent from the BP unit (Indoor unit), and the freeze prevention control prevents freezing of the indoor unit.
SiEBE18-526 Protection Control Dew Condensation Prevention Control Outline According to the dew condensation prevention status sent from the BP unit. The compressor output frequency is regulated to decrease the compressor capacity in order to prevent the indoor unit from dew condensation. Detail Zones are produced based on the dew condensation prevention status signal sent from the BP unit (Indoor unit), and the dew condensation prevention control prevents dew condensation of...
Other Control SiEBE18-526 5. Other Control Demand Operation In order to save the power consumption, the capacity of outdoor unit is saved with control forcibly by using “Demand 1 Setting” or “Demand 2 Setting”. To operate the unit with this mode, additional setting of “Continuous Demand Setting” or external input by external control adaptor is required.
SiEBE18-526 BP Unit Control 6. BP Unit Control BP Unit Command Conversion 1. ∆D (room temperature − temperature setting) signals from BP units are converted to capacity up / down signal. ∆D signals from BP units are used as the capacity up / down signal in frequency commands (excludes when Powerful function is in operation).
BP Unit Control SiEBE18-526 BP Unit Electronic Expansion Valve Control Purpose of the This function provides instructions regarding the absolute flow rate, relative flow rate and fully closing from the outdoor unit to the BP unit in order to ensure outdoor unit compressor safety Function and optimum refrigerating cycle of the system.
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SiEBE18-526 BP Unit Control 6.2.3 Full Closing of Electronic Expansion Valves Purpose of the The electronic expansion valves are initialized when the power is turned on. Function Details The following processes are conducted. 1. Conducts P1 pulses close when power is turned on, and sets current opening to 0 pulse (fully closing process).
BP Unit Control SiEBE18-526 SH Control in Cooling Operation Purpose of the This function ensures appropriate refrigerant distribution when many room units are operating in the cooling mode. Function Outline The heat exchanger temperatures and gas pipe temperatures of operating room units are detected by the gas pipe thermistors, and the electronic expansion valves' flow rates are corrected so as to adjust the difference between heat exchanger temperature and gas pipe temperature of each room unit (hereafter referred to as SH) close to the target values.
SiEBE18-526 BP Unit Control Note: 1. In Sky Air models, the indoor units are equipped with distribution capillary tubes ; therefore, the heat exchangers may superheat even when the condition is met. 2. In Sky Air models, the heat exchanger intermediate position is provided on the liquid connection pipe side;...
Indoor Unit (RA Models) SiEBE18-526 7. Indoor Unit (RA Models) Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing Power-airflow The large flaps send a large volume of air downwards to the floor. The flap provides an optimum Dual Flaps control area in cooling, heating and dry mode. Heating Mode During heating mode, the large flap enables direct warm air straight downwards.
SiEBE18-526 Indoor Unit (RA Models) Fan Speed Control for Indoor Units Control Mode The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature. This is done through phase control and Hall IC control. For more information about Hall IC, refer to the troubleshooting for fan motor on page 260.
Indoor Unit (RA Models) SiEBE18-526 Programme Dry Function Programme dry function removes humidity while preventing the room temperature from lowering. Since the microcomputer controls both the temperature and air flow volume, the temperature adjustment and fan adjustment buttons are inoperable in this mode. In Case of The microcomputer automatically sets the temperature and fan settings.
SiEBE18-526 Indoor Unit (RA Models) Automatic Operation Automatic Cooling / Heating Function (Heat Pump Only) When the AUTO mode is selected with the remote controller, the microcomputer automatically determines the operation mode from cooling and heating according to the room temperature and setting temperature at the time of the operation startup, and automatically operates in that mode.
Indoor Unit (RA Models) SiEBE18-526 Thermostat Control Thermostat control is based on the difference between the room temperature and the setpoint. Thermostat OFF Condition The temperature difference is in the zone A. Thermostat ON Condition The temperature difference is above the zone C after being in the zone A. The system resumes from defrost control in any zones except A.
SiEBE18-526 Indoor Unit (RA Models) Night Set Mode When the OFF timer is set, the Night Set circuit automatically activates. The Night Set circuit maintains the airflow setting made by users. The Night Set The Night Set circuit continues heating or cooling the room at the set temperature for the first Circuit one hour, then automatically raises the temperature setting slightly in the case of cooling, or lowers it slightly in the case of heating, for economical operations.
Indoor Unit (RA Models) SiEBE18-526 ECONO Mode Outline FTXS20-35D, CTXS50D The "ECONO mode" reduces the maximum operating current and power consumption by approx. 30% during start up etc.. This mode is particularly convenient for energy-saving-oriented users. It is also a major bonus for those whose breaker capacities do not allow the use of multiple electrical devices and air conditioners.
SiEBE18-526 Indoor Unit (RA Models) INTELLIGENT EYE This is the function that detects existence of humans in the room by a human motion sensor (INTELLIGENT EYE) and reduces the capacity when there is no human in the room in order to save electricity.
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Indoor Unit (RA Models) SiEBE18-526 Since the set temperature is shifted by 2°C higher for 40 minutes, compressor speed becomes low and can realize energy saving operation. But as thermostat is prone to be off by the fact that the set temperature has been shifted, the thermostat-off action is prohibited in 40 minutes so as to prevent this phenomena.
SiEBE18-526 Indoor Unit (RA Models) HOME LEAVE Operation Outline In order to respond to the customer's need for immediate heating and cooling of the room after returning home or for house care, a measure to switch the temperature and air volume from that for normal time over to outing time by one touch is provided.
Indoor Unit (RA Models) SiEBE18-526 7.10 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. Details of the When POWERFUL button is pushed in each operation mode, the fan speed / setting Control temperature will be converted to the following states in a period of twenty minutes.
SiEBE18-526 Indoor Unit (RA Models) 7.11 Other Functions 7.11.1 Hot Start Function Heat Pump Only In order to prevent the cold air blast that normally comes when heating is started, the temperature of the heat exchanger of the indoor unit is detected, and either the air flow is stopped or is made very weak thereby carrying out comfortable heating of the room.
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Indoor Unit (RA Models) SiEBE18-526 7.11.7 Air Purifying Filter with Photocatalytic Deodorizing Function This filter incorporates the benefits the Air Purifying Filter and Photocatalytic Deodorizing Filter in a single unit. Combining the two filters in this way increases the active surface area of the new filter.
SiEBE18-526 Indoor Unit (SkyAir Models) 8. Indoor Unit (SkyAir Models) Function Outline FFQ-B, FHQ-B (Input) (Output) Indoor Unit Thermostat Control Two thermostats used, suction Suction Sensor(R1T) and remote control. Fan Motor Monitoring Function Drain Pump Heat Exchanger Sensor Cool/Heat Automatic Optional for FHQ (R2T) Function...
Indoor Unit (SkyAir Models) SiEBE18-526 Electric Function Parts FFQ – BV1B Capacity Remarks Wired remote controller BRC1C517 Optional (BRC1C61 for Australia) Accessory Wireless remote Heat pump BRC7E(A)530W Optional controller Accessory Cooling only BRC7E(A)531W Electronic control unit [2P095006-2] EC0280 Fan motor [3P104408-1] 4P 55W Fan motor capacitor 4.0MF 440VAC...
SiEBE18-526 Indoor Unit (SkyAir Models) Function Details Thermostat Control 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Initial setting Set temperature -2.5 -2 +2.5 Cooling thermostat ON Cooling thermostat OFF Heating thermostat OFF Heating...
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Indoor Unit (SkyAir Models) SiEBE18-526 Condensation Avoidance Continuous 30 minutes operation of cooling One hour drying Control (FHQ Only) After continuous 30 minutes of operation with downward The unit operation can be reset with changing operation horizontal blade position, change the blade position to mode into "heating"...
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SiEBE18-526 Indoor Unit (SkyAir Models) 1-2 Operations when an occurrence of water level abnormality 1-2-a) Behavior between occurrence and recovery of water level abnormality After compressor stops due to water level abnormality, drain pump is operated intermittently, i.e. 5 min ON, 5 sec OFF and 5 min ON.
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Indoor Unit (SkyAir Models) SiEBE18-526 2. Heating 2-1 Basic operation In heating operation of the unit equipped with a humidifier, when "Interlocking of drain pump / humidifier" (15(25)-3) is set to "yes" (02), the drain pump operates 20-min OFF and 3-min ON repeatedly during compressor is in operation.
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SiEBE18-526 Indoor Unit (SkyAir Models) 2-2-a)-2 When a water level abnormality occurs during drain pump OFF The abnormality is determined when 80 seconds elapse from compressor stop. Other than above, behavior is same as 2-2-a). Occurrence of drain water level abnormality Intermittent operation (*1) 5min 5min...
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Indoor Unit (SkyAir Models) SiEBE18-526 Using Conditions (Applicable models: FHQ & FFQ only) Remote controller thermostat is equipped only in wired remote controller. for Remote Even when “ use remote controller thermostat ” is selected in service mode, the remote Controller controller thermostat may not be used.
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SiEBE18-526 Indoor Unit (SkyAir Models) Program Dry The points of thermostat ON or OFF are determined according to the suction air temperature at the startup of unit operation. Operation The set temperature and flow rate are not displayed on remote controller. Function Operation startup Thermostat...
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Indoor Unit (SkyAir Models) SiEBE18-526 Fan and Flap Operations Flap Remote Controller FHQ & FFQ Indication Heating Hot Start from Defrost In Swing Horizontal Swing Operation Operation In Airflow Horizontal Set Position Direction Setting Defrost In Swing Horizontal Swing Operation In Airflow Horizontal Set Position...
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SiEBE18-526 Indoor Unit (SkyAir Models) Mode Conflict [Overview] While the indoor unit for another room and the outdoor unit are operating, when the indoor unit for the own room is activated, the operation mode which can be selected in the own room has some restrictions as mentioned below.
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Indoor Unit (SkyAir Models) SiEBE18-526 Non-operating [Overview] After operating an indoor unit for the own room in the cooling mode or dry mode, stop the unit Room Dew using the remote controller. Under the condition, when an unit for another room is started Prevention Fan operation in the heating mode, the fan in the own room may rotate in the LL mode even though Control...
SiEBE18-526 Part 6 Test Operation 1. Test Operation ..................106 1.1 Procedure and Outline .................106 2. Outdoor Unit PCB Layout..............111 3. Field Setting ..................112 3.1 Field Setting from Outdoor Unit............112 3.2 Detail of Setting Mode ................118 4. Field Setting for SkyAir Indoor Unit .............128 4.1 Explanation...................128 4.2 Field Setting ..................129 4.3 Initial Setting Contents .................130...
Test Operation SiEBE18-526 1. Test Operation Procedure and Outline Follow the following procedure to conduct the initial test operation after installation. 1.1.1 Check work prior to turn power supply on Is the power supply single-phase 220-230V / 50Hz? Check the below items. Have you finished a ductwork to drain? 2Power wiring Have you detach transport fitting?
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SiEBE18-526 Test Operation 1.1.3 Judging and reprogramming in case of redundant BP addresses The BP unit of this system is provided with specific addresses in its production stage. These addresses are used to conduct various controls. If by any chance (on 3 out of 260000 units) these addresses are redundant, the system may get in trouble.
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Test Operation SiEBE18-526 Example of DIP switch (DS2) settings on the BP unit's PCB DS2-1 DS2-2 DS2-3 DS2-4 BP unit 1 BP unit 2 BP unit 3 DS1~4 : Factory setting is OFF. The BP unit 1 through 3 show the first through third unit, respectively. The order of these units is flexible.
SiEBE18-526 Test Operation 1.1.7 Check Operation * During check operation, mount front panel to avoid the misjudging. * Check operation is mandatory for normal unit operation. (When the check operation is not executed, alarm code "U3" will be displayed.) Press and hold the TEST ⎧...
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Test Operation SiEBE18-526 1.1.8 Confirmation on Normal Operation • Conduct normal unit operation after the check operation has been completed. (When outdoor air temperature is 30°CDB or higher, the unit can not be operated with heating mode. See the installation manual attached.) •...
Field Setting SiEBE18-526 3. Field Setting Field Setting from Outdoor Unit 3.1.1 Setting by dip switches The following field settings are made by dip switches on PC board. Dipswitch Setting item Description Setting Cool / Heat Used to set cool / heat change over setting by DS1-1 change over remote controller equipped with outdoor unit.
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SiEBE18-526 Field Setting Setting by pushbutton switches The following settings are made by pushbutton switches on PC board. LED indication (Factory setting) MODE RETURN TEST RESET (V2760) There are the following three setting modes. Setting mode 1 (H1P off) Initial status (when normal) : Also indicates during “abnormal”. Setting mode 2 (H1P on) Used to modify the operating status and to set program addresses, etc.
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Field Setting SiEBE18-526 a. “Setting mode 1” “Normally, “Setting mode 1” is set. In case of other status, push MODE button (BS1) one time and set to “Setting mode 1”. Display for malfunction/preparing/test-run LED display example ∗ The current state is displayed. Setting (displaying) item Normal Malfunction...
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SiEBE18-526 Field Setting b. “Setting mode 2” Setting item Description Indoor unit forced Allows forced operation of indoor unit fan while unit is fan H stopped. (H tap) Push and hold the MODE button (BS1) for 5 seconds and set to Indoor unit forced Allows forced operation of indoor unit.
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Field Setting SiEBE18-526 Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave ∗ Factory set 8777778 ∗ Normal operation Indoor forced fan H Indoor forced fan H 8777787 8777778 ∗ Normal operation Indoor forced operation Indoor forced operation 8777787...
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SiEBE18-526 Field Setting c. Monitor mode LED display Setting item Data display To enter the monitor mode, push the 9 7 7 7 7 7 7 Various settings See below MODE button (BS1) when in “Setting 9 7 7 7 8 7 8 Number of connected indoor units Lower 6 digits mode 1”.
Field Setting SiEBE18-526 Detail of Setting Mode 3.2.1 Cool / Heat Mode Switching There are the following 2 cool/heat switching modes. Set cool/heat separately for each outdoor unit system by indoor unit remote controller. Set cool/heat separately for each outdoor unit system by cool/heat switching remote controller.
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SiEBE18-526 Field Setting Set Cool / Heat Separately for Each Outdoor Unit System by Cool/Heat Switching Remote Controller Set outdoor unit PC board DS1-1 to “outdoor” (factory set). Set cool/heat switching to “individual” for “Setting mode 1” (factory set). TEST C/H SELECT MODE L.N.O.P.
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Field Setting SiEBE18-526 3.2.2 Setting of Low Noise Operation and Demand Operation Setting of Low Noise Operation By connecting the external contact input to the low noise input of the outdoor unit external control adaptor (optional), you can lower operating noise by 2-3 dB. A.
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SiEBE18-526 Field Setting Image of operation in the case of A If capacity precedence is set in Operation sound “Capacity precedence setting”, the fan speed will be increased according to the load of air conditioning when load is heavier. Rated operation sound Operation sound during low Low noise mode instructing...
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Field Setting SiEBE18-526 Setting of Demand Operation By connecting the external contact input to the demand input of the outdoor unit external control adaptor (optional), the power consumption of unit operation can be saved suppressing the compressor operating condition. A. When the demand operation is carried out by external instructions (with the use of the outdoor unit external control adaptor).
SiEBE18-526 Field Setting Image of operation in the case of A Power consumption The power Rated power consumption consumption during the demand level 1 80 % of rated power consumption Demand level 1 instructing Demand level 2 instructing Demand level 3 instructing instructing can be 70 % of rated power consumption 60 % of rated power consumption...
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Field Setting SiEBE18-526 Detailed Setting Procedure of Low Noise Operation and Demand Control 1. Setting mode 1 (H1P off) In setting mode 2, push the BS1 (MODE button) one time. → Setting mode 2 is entered and H1P lights. During the setting mode 1 is displayed, “In low noise operation” and “In demand control” are displayed.
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Field Setting SiEBE18-526 3.2.3 Setting of Refrigerant Recovery Mode When carrying out the refrigerant collection on site, fully open the respective expansion valve of BP and outdoor unit. Both the outdoor unit and the indoor unit are forbidden to operation. Operation In setting mode 2 with units in stop mode, set “B Refrigerant Recovery / Vacuuming mode”...
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SiEBE18-526 Field Setting 3.2.5 Check Operation To prevent any trouble in the period of installation at site, the system is provided with a test operation mode enabling check for incorrect wiring, stop valve left in closed, and judgment of piping length. CHECK OPERATION FUNCTION LED display (H1P~H7P) ( BLINKING...
Field Setting for SkyAir Indoor Unit SiEBE18-526 4. Field Setting for SkyAir Indoor Unit Explanation Field set is carried out from the remote controller. At time of installation, or after maintenance inspection/repair, carry out field set according to the explanation below. Incorrect settings will cause a malfunction to occur.
SiEBE18-526 Field Setting for SkyAir Indoor Unit Field Setting 4.2.1 Wired Remote Controller Note: (Field setting must be made from the remote controller in accordance with the installation conditions.) Setting can be made by changing the “Mode number”, “FIRST CODE NO.”, and “SECOND CODE NO.”.
Field Setting for SkyAir Indoor Unit SiEBE18-526 4.2.2 Wireless Remote Controller Note: If optional accessories are mounted on the indoor unit, the indoor unit setting may have to be changed. Refer to the instruction manual (optional hand book) for each optional accessory. Procedure 1.
SiEBE18-526 Field Setting for SkyAir Indoor Unit Local Setting Mode Number Example To set the filter sign time to “filter contamination - heavy” for all units in a group: Set mode No. to “10,” setting switch No. to “0,” and setting position No. to “02.” Table (FHQ &...
Field Setting for SkyAir Indoor Unit SiEBE18-526 Detailed Explanation of Setting Modes 4.5.1 Air Flow Direction Setting (FFQ) Set the air flow direction of indoor units as given in the table below. (Set when optional air outlet blocking pad has been installed.) The second code No. is factory set to “01.” Setting Table Mode No.
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SiEBE18-526 Field Setting for SkyAir Indoor Unit 4.5.5 Fan Speed Changeover When Thermostat is OFF (FFQ & FHQ) By setting to “Set Fan Speed,” you can switch the fan speed to the set fan speed when the heating thermostat is OFF. ∗...
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Field Setting for SkyAir Indoor Unit SiEBE18-526 Address Setting <Setting from the remote controller> 1. Hold down the “ ” button and the “ ” button for at least 4 seconds, to get (It is Factory Set the FIELD SET MODE. (Indicated in the display area in the figure at below). to “1”) 2.
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SiEBE18-526 Field Setting for SkyAir Indoor Unit After Setting Stick the Unit No. label at decoration panel air discharge outlet as well as on the back of the wireless remote controller. Infrared remote control Unit No. label Decoration panel PRECAUTIONS Set the Unit No.
Field Setting for SkyAir Indoor Unit SiEBE18-526 Centralized Group No. Setting If carrying out centralized control with a central remote controller and unified ON/OFF controller, you have to set the group No. for each group by remote controller. To set the group No., first turn on the power supply of the central remote controller, unified ON/OFF controller and indoor unit.
SiEBE18-526 Field Setting for SkyAir Indoor Unit Maintenance Mode Setting Procedure 1. Enter the field set mode. Continue to push the inspection / test operation button for a minimum of 4 seconds. 2. Enter the maintenance mode. After having entered the field set mode, continue to push the inspection / test operation button for a minimum of 4 seconds.
Test Operation and Field Setting for RA Indoor Unit SiEBE18-526 5. Test Operation and Field Setting for RA Indoor Unit Test Operation from the Remote Controller For Heat pump In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature.
SiEBE18-526 Test Operation and Field Setting for RA Indoor Unit Jumper Settings 5.2.1 When Two Units are Installed in One Room When two indoor units are installed in one room, the two wireless remote controllers can be set for different addresses. How to set the different addresses Control PCB of the indoor unit (1) Remove the electrical box.
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Test Operation and Field Setting for RA Indoor Unit SiEBE18-526 5.2.3 Adjusting the Angle of the Intelligent Eye Sensor FTXS20-35C Once installation of the indoor unit is complete, adjust the angle of the Intelligent eye sensor to ensure the detection area properly covers the room. (Adjustable angle : 15°...
System Configuration SiEBE18-526 1. System Configuration Operation Instructions 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.
SiEBE18-526 Instruction 2. Instruction RMXS Series REGARDING USE Super Multi Plus System air conditioner POINTS THE CUSTOMER SHOULD BE AWARE OF COMFORT At startup • After the power is initially turned on, it will take approx. 10 minutes until startup. Usually the unit will start in 5 minutes.
Instruction SiEBE18-526 Wall Mounted, Duct, Floor/Ceiling, Floor Standing Type 2.2.1 Manual Contents and Reference Page Wall Mounted Type Model Series FTXS20~35D FTXS20~35C FTXS50~71B CTXS50D Read before Operation Safety Precautions Names of Parts Preparation before Operation H Operation AUTO, DRY, COOL, HEAT, FAN Operation H Adjusting the Air Flow Direction POWERFUL Operation H...
• Do not attempt to repair, relocate, modify or reinstall the air conditioner by yourself. Incorrect work will cause electric shocks, fire etc. For repairs and reinstallation, consult your Daikin dealer for advice and information. • The refrigerant used in the air conditioner is safe. Although leaks should not occur, if for some reason any refrigerant happens to leak into the room, make sure it does not come in contact with any flame as of gas heaters, kerosene heaters or gas range.
Instruction SiEBE18-526 • Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not remove the fan guard. • Do not place anything under the indoor or outdoor unit that must be kept away from moisture. In certain conditions, moisture in the air may condense and drip.
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SiEBE18-526 Instruction 2.2.3 Names of Parts FTXS20/25/35D, CTXS50D Names of parts Indoor Unit ON/OFF System Configuration...
Instruction SiEBE18-526 Outdoor Unit Indoor Unit 1. Air filter 12. Indoor Unit ON/OFF switch: • Push this switch once to start operation. Push 2. Titanium Apatite Photocatalytic once again to stop it. Air-Purifying Filter: • The operation mode refers to the following •...
SiEBE18-526 Instruction Outdoor Unit Indoor Unit 1. Air filter 12. Indoor UnitON/OFF switch: • Push this switch once to start operation. 2. Air purifying filter with photocatalytic Push once again to stop it. deodorizing function: • The operation mode refers to the following •...
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Instruction SiEBE18-526 Remote Control HOME LEAVE ON/OFF TEMP POWERFUL MODE SWING SILENT SENSOR CANCEL TIMER < > ARC433A1, A2 1. Signal transmitter: (AUTO/DRY/COOL/HEAT/FAN) • It sends signals to the indoor unit. 8. SILENT button: for OUTDOOR UNIT 2. Display: SILENT operation •...
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SiEBE18-526 Instruction FTXS50/60/71B Names of parts Indoor Unit The illustration shows a 50-class unit Main unit control panel System Configuration...
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Instruction SiEBE18-526 Outdoor Unit Indoor Unit 14. Indoor Unit ON/OFF switch: 1. Air filter • Push this switch once to start operation. 2. Air purifying filter with photocatalytic Push once again to stop it. deodorizing function: • The operation mode refer to the following table. •...
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SiEBE18-526 Instruction Remote control HOME LEAVE ON/OFF TEMP POWERFUL MODE SILENT SENSOR SWING CANCEL TIMER < > ARC433A21, A22 1. Signal transmitter: 8. SILENT button: for OUTDOOR UNIT SILENT operation • It sends signals to the indoor unit. 9. FAN setting button: 2.
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Instruction SiEBE18-526 FDXS25/35C, CDXS50/60C Names of parts Indoor Unit System Configuration...
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SiEBE18-526 Instruction Outdoor Unit Indoor Unit 1. Air outlet 10. Indoor Unit ON/OFF switch • Push this switch once to start operation. 2. Air outlet grille (Field supply) Push once again to stop it. • Appearance of the Air outlet grille and Air inlet •...
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Instruction SiEBE18-526 Remote Control HOME LEAVE ON/OFF TEMP POWERFUL MODE SILENT CANCEL TIMER < > ARC433A7, A8 1. Signal transmitter: 7. MODE selector button: • It sends signals to the indoor unit. • It selects the operation mode. (AUTO/DRY/COOL/HEAT/FAN) 2. Display: 8.
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SiEBE18-526 Instruction FLXS25/35/50/60B Names of parts Indoor Unit The indoor unit can be installed either to the ceiling or to a wall. The descriptions contained in this manual show the case when installation is being carried out to the ceiling. (The methods of operation used are the same when installing to a wall.) Opening the front grille How to open the front grille...
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Instruction SiEBE18-526 Outdoor Unit Indoor Unit 13. Indoor unit ON/OFF switch 1. Louvres (vertical blades): • Push this switch once to start operation. The louvres are inside of the air outlet. Push once again to stop it. 2. Air outlet •...
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SiEBE18-526 Instruction Remote Control HOME LEAVE ON/OFF TEMP POWERFUL MODE SWING SILENT CANCEL TIMER < > ARC433A5, A6 1. Signal Transmitter: 7. MODE selector button: • It sends signals to the indoor unit. • It selects the operation mode. (AUTO/DRY/COOL/HEAT/FAN) 2.
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Instruction SiEBE18-526 FVXS25/35/50B Names of parts Indoor Unit O F F Opening the front grille How to open the grille Air outlet selection switch 12 13 • This setting blows air from upper outlet only. This setting automatically decides a blow •...
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SiEBE18-526 Instruction Outdoor Unit Indoor Unit • The operation mode refers to the following 1. Photocatalytic deodorizing filter and table. Air purifying filter: • These filters are attached to the inside of the air Temperature Air flow Mode filters. setting rate 2.
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Instruction SiEBE18-526 Remote Control HOME LEAVE ON/OFF TEMP POWERFUL MODE SWING SILENT CANCEL TIMER < > ARC433A5, A6 1. Signal Transmitter: • It selects the operation mode. (AUTO/DRY/COOL/HEAT/FAN) • It sends signals to the indoor unit. 8. SILENT button: for OUTDOOR UNIT 2.
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SiEBE18-526 Instruction 2.2.4 Preparation before Operation Preparation Before Operation To set the batteries Position + and – correctly! 1. Press with a finger and slide the front cover to take it off. 2. Set two dry batteries (AAA). 3. Set the front cover as before. ATTENTION About batteries •...
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Instruction SiEBE18-526 Preparation Before Operation To operate the remote control • To use the remote control, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote control, such as a curtain, the unit will not operate. •...
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SiEBE18-526 Instruction To set the clock 1. Press “CLOCK button”. is displayed. blinks. 2. Press “TIMER setting button” to set the clock to the present time. Holding down “ ” or “ ” button rapidly HOME LEAVE ON/OFF increases or decreases the time display. TEMP POWERFUL 3.
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Instruction SiEBE18-526 2.2.5 AUTO · DRY · COOL · HEAT · FAN Operation 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.
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SiEBE18-526 Instruction To change the air flow rate setting 5. Press “FAN setting button”. AUTO or COOL or HEAT or FAN mode DRY mode Five levels of air flow rate setting from “ ” to “ ” plus “ ” “ ”...
Instruction SiEBE18-526 2.2.6 Adjusting the Air Flow Direction FTXS20/25/35D, CTXS50D Adjusting the Air Flow Direction You can adjust the air flow direction to increase your comfort. To adjust the horizontal blades (flaps) 1. Press “SWING button”. • “ ” is displayed on the LCD and the flaps will begin to swing.
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SiEBE18-526 Instruction To start COMFORT AIRFLOW operation 3. Press “COMFORT AIRFLOW button”. The flap position will change, preventing air from blowing directly on the occupants of the room. • “ ” is displayed on the LCD. 〈COOL/DRY〉 The flap will go up. 〈HEAT〉...
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Instruction SiEBE18-526 FTXS20/25/35C Adjusting the Air Flow Direction You can adjust the air flow direction to increase your comfort. To adjust the horizontal blades (flaps) 1. Press “SWING button”. The display will light up and the flaps will begin to swing. HOME LEAVE ON/OFF 2.
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SiEBE18-526 Instruction To adjust the vertical blades (louvres) Hold the knob and move the louvres. (You will find a knob on the left-side and the right-side blades.) Notes on flaps and louvres angles • When “SWING button” is selected, the flaps In DRY mode or COOL mode swinging range depends on the operation mode.
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Instruction SiEBE18-526 FTXS50/60/71B Adjusting the Air Flow Direction You can adjust the air flow direction to increase your comfort. To adjust the horizontal blade (flap) 1. Press “SWING button ”. • “ ” is displayed on the LCD. HOME LEAVE 2.
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SiEBE18-526 Instruction To 3-D Airflow 1. 3. Press the “SWING button ” and the “SWING button ”: the “ ” and “ ” display will light up and the flap and louvers will move in turn. To cancel 3-D Airflow 2.
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Instruction SiEBE18-526 FLXS25/35/50/60B Adjusting the Air Flow Direction You can adjust the air flow direction to increase your comfort. To adjust the horizontal blade (flap) 1. Press “SWING button”. The display will light up and the flaps will begin to swing. HOME LEAVE ON/OFF 2.
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SiEBE18-526 Instruction To adjust the vertical blades (louvres) • When adjusting the louvre, use a robust and stable stool and watch your steps carefully. Hold the knob and move the louvres. (You will find a knob on the left side and the right side blades.) Notes on flap and louvres angles •...
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Instruction SiEBE18-526 FVXS25/35/50B Adjusting the Air Flow Direction You can adjust the air flow direction to increase your comfort. To adjust the horizontal blade (flap) 1. Press “SWING button”. The display will light up and the flaps will begin to swing. HOME LEAVE ON/OFF 2.
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SiEBE18-526 Instruction Air flow selection • Make air flow selection according to what suits you. When setting the air flow selection switch to • Air conditioner automatically decides the appropriate blowing pattern depending on the operating mode/situation. Operating mode Situation Blowing pattern •...
Instruction SiEBE18-526 2.2.7 POWERFUL Operation 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 automatically operates again with the settings which were used HOME LEAVE...
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SiEBE18-526 Instruction 2.2.8 OUTDOOR UNIT SILENT Operation OUTDOOR UNIT SILENT Operation OUTDOOR UNIT SILENT operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during night. To start OUTDOOR UNIT SILENT operation 1.
Instruction SiEBE18-526 2.2.9 ECONO Operation ECONO Operation ECONO operation is a function which enables efficient operation by lowering the maximum power consumption value. To start ECONO operation 1. Press “ECONO button”. • “ ” is displayed on the LCD. To cancel ECONO operation 2.
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SiEBE18-526 Instruction 2.2.10 HOME LEAVE Operation 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” . • The HOME LEAVE lamp lights up. To cancel HOME LEAVE 1, 2 HOME LEAVE...
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Instruction SiEBE18-526 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.
SiEBE18-526 Instruction 2.2.11 INTELLIGENT EYE Operation FTXS20/25/35D, CTXS50D INTELLIGENT EYE Operation “INTELLIGENT EYE” is the infrared sensor which detects the human movement. ■ To start INTELLIGENT EYE operation 1. Press “SENSOR button”. • “ ” is displayed on the LCD. ■...
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Instruction SiEBE18-526 INTELLIGENT EYE Operation “INTELLIGENT EYE” is useful for Energy Saving Energy saving operation • Change the temperature –2°C in heating / +2°C in cooling / +2°C in dry mode from set temperature. • Decrease the air flow rate slightly in fan operation. (In FAN mode only) Notes on “INTELLIGENT EYE”...
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SiEBE18-526 Instruction FTXS20/25/35C INTELLIGENT EYE Operation “INTELLIGENT EYE” is the infrared sensor which detects the human movement. To start INTELLIGENT EYE operation 1. Press “SENSOR button”. To cancel the INTELLIGENT EYE HOME LEAVE ON/OFF operation TEMP POWERFUL 2. Press “SENSOR button” again. [EX.] MODE SWING...
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Instruction SiEBE18-526 To adjust the angle of the INTELLIGENT EYE sensor • You can adjust the angle of the INTELLIGENT EYE sensor to increase the detection area. (Adjustable angle: 15° to right and left of centre) INTELLIGENT EYE 15˚ 15˚ sensor •...
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SiEBE18-526 Instruction FTXS50/60/71B INTELLIGENT EYE Operation “INTELLIGENT EYE” is the infrared sensor which detects the human movement. To start INTELLIGENT EYE operation 1. Press “SENSOR button”. To cancel the HOME LEAVE INTELLIGENT EYE ON/OFF TEMP POWERFUL operation 2. Press “SENSOR button” again. MODE [EX.] SILENT...
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Instruction SiEBE18-526 “INTELLIGENT EYE” is useful for Energy Saving Energy saving operation • Change the temperature –2°C in heating / +2°C in cooling / +1°C in dry mode from set temperature. • Decrease the air flow rate slightly in fan operation. (In FAN mode only) Notes on “INTELLIGENT EYE”...
SiEBE18-526 Instruction 2.2.12 TIMER Operation 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 opera- tion •...
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Instruction SiEBE18-526 To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time (page 9.). 1. Press “ON TIMER button”. is displayed. blinks. 2. Press “TIMER Setting button” until the time setting reaches HOME LEAVE ON/OFF the point you like.
SiEBE18-526 Instruction 2.2.13 Note for Multi System Note for Multi System < < What is a “Multi System”? > > This system has one outdoor unit connected to multiple indoor units. Functions depend on the model. room Outdoor unit Selecting the Operation Mode room Living 1.
Instruction SiEBE18-526 2.2.14 Care and Cleaning FTXS20/25/35D, CTXS50D Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote control 1. Wipe them with dry soft cloth. Front panel 1.
SiEBE18-526 Instruction Filters 1. Open the front panel. 2. Pull out the air filters. • Push a little upwards the tab at the center of each air filter, then pull it down. 3. Take off the Titanium Apatite Photocatalytic Air-Purifying Filter. •...
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Instruction SiEBE18-526 NOTE • Operation with dirty filters: (1) cannot deodorize the air. (2) cannot clean the air. (3) results in poor heating or cooling. (4) may cause odour. • To order Titanium Apatite Photocatalytic Air-Purifying Filter contact to the service shop there you bought the air conditioner.
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SiEBE18-526 Instruction FTXS20/25/35C Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote control 1. Wipe them with dry soft cloth. Front grille 1. Open the front grille. •...
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Instruction SiEBE18-526 Filters 1. Open the front grille. 2. Pull out the air filters. • Push a little upwards the tab at the center of each air filter, then pull it down. 3. Take off the air purifying filter with Air purifying filter photocatalytic deodorizing function.
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SiEBE18-526 Instruction Check Check that the base, stand and other fittings of the outdoor unit are not decayed or corroded. Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit. Check that the drain comes smoothly out of the drain hose during COOL or DRY operation. •...
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Instruction SiEBE18-526 FTXS50/60/71B Care and Cleaning CAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote control 1. Wipe them with dry soft cloth. Front grille 1. Open the front grille. •...
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SiEBE18-526 Instruction Filters 1. Open the front grille. 2. Pull out the air filters. • Push a little upwards the tab at the center of each air filter, then pull it down. 3. Take off the air tabs (3 tabs at top) purifying filter with photocatalytic deodorizing function.
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Instruction SiEBE18-526 Check Check that the base, stand and other fittings of the outdoor unit are not decayed or corroded. Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit. Check that the drain comes smoothly out of the drain hose during COOL or DRY operation. •...
SiEBE18-526 Instruction FDXS25/35C, CDXS50/60C Care and Cleaning • Only a qualified service person is allowed to CAUTION perform maintenance. • Before cleaning, be sure to stop the operation and turn the breaker OFF. Cleaning the air filter. 1. Removing the air filter. •...
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• Clean the drain pan periodically, or drain piping may be clogged with dust and may result in water leakage. Ask your DAIKIN dealer to clean them. • Prepare a cover locally to prevent any dust in the air around the indoor unit from getting in the drain pan, if there is a great deal of dust present.
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SiEBE18-526 Instruction FLXS25/35/50/60B Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote control 1. Wipe them with dry soft cloth. Front grille 1. Open the front grille. •...
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Instruction SiEBE18-526 Filters 1. Open the front grille. 2. Pull out the air filters. • Push upwards the tab at the center of each air filter, then pull it down. 3. Take off the air purifying filter, photocatalytic deodorizing filter. •...
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SiEBE18-526 Instruction Check Check that the base, stand and other fittings of the outdoor unit are not decayed or corroded. Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit. Check that the drain comes smoothly out of the drain hose during COOL or DRY operation. If no drain water is seen, water may be leaking from the indoor unit.
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Instruction SiEBE18-526 FVXS25/35/50B Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote control 1. Wipe them with dry soft cloth. Front grille 1. Open the front grille. •...
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SiEBE18-526 Instruction Filters 1. Open the frontgrille. 2. Remove the air filter. • Press the claws on the right and left of the air filter down slightly, then pull upward. 3. Take off the air purifying filter, Photocatalytic deodorizing filter. •...
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Instruction SiEBE18-526 Check Check that the base, stand and other fittings of the outdoor unit are not decayed or corroded. Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit. Check that the drain comes smoothly out of the drain hose during COOL or DRY operation. If no drain water is seen, water may be leaking from the indoor unit.
SiEBE18-526 Instruction 2.2.15 Troubleshooting Trouble Shooting These cases are not troubles. The following cases are not air conditioner troubles but have some reasons. You may just continue using it. Case Explanation Operation does not start soon. • This is to protect the air conditioner. You should wait for about 3 minutes.
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Instruction SiEBE18-526 Check again. Please check again before calling a repair person. Case Check The air conditioner does not • Hasn’t a breaker turned OFF or a fuse blown? operate. • Isn’t it a power failure? (OPERATION lamp is off) •...
SiEBE18-526 Instruction Call the service shop immediately. WARNING When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF. Continued operation in an abnormal condition may result in troubles, electric shocks or fire. Consult the service shop where you bought the air conditioner. Do not attempt to repair or modify the air conditioner by yourself.
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Instruction SiEBE18-526 Fault diagnosis FAULT DIAGNOSIS BY REMOTE CONTROL In the ARC433A series, the temperature display sections on the main unit indicate corresponding codes. 1. When the TIMER CANCEL button is held down for 5 seconds, a “ ” indication flashes on the temperature display section.
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SiEBE18-526 Instruction LED ON OUTDOOR UNIT PCB 3MXS, 3MKS, 4MXS, 4MKS series GREEN MICROCOMPUTER MALFUNCTION NORMAL DETECTION LED-A LED1 LED2 LED3 LED4 DIAGNOSIS NORMAL CHECK INDOOR UNIT HIGH PRESSURE PROTECTOR WORKED OR FREEZE-UP IN OPERATING UNIT OR STAND-BY UNIT ∗ OVERLOAD RELAY WORKED OR HIGH DISCHARGE PIPE TEMPERATURE FAULTY COMPRESSOR START INPUT OVERCURRENT...
Instruction SiEBE18-526 Ceiling Mounted Cassette Type TEST AVAILABLE TEST System Configuration...
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(In case of group control system, one group of indoor units) The unit is individually operated. Outdoor unit NOTE • Contact your Daikin dealer in case of changing Unit with Unit with the combination or setting of group control and remote remote two remote controllers control system.
Instruction SiEBE18-526 the level of limiting concentration, an oxygen 2. SAFETY CONSIDERATIONS deficiency accident may happen. For installation of separately sold component We recommend that you read this instruction parts, ask a specialist. manual carefully before use to gain full advantage Be sure to use the separately sold component parts of the function of the air conditioner, and to avoid designated by our company.
SiEBE18-526 Instruction DB: Dry bulb temperature (°C) Do not expose animals and plants directly to WB: Wet bulb temperature (°C) the wind from the air conditioner. The setting temperature range of the remote control Adverse influence to animals and plants may °...
• Operating procedure varies with heat pump type DISPLAY “ ” (AIR FLOW FLAP) and cooling only type. Contact your Daikin dealer Refer to “AIR FLOW DIRECTION ADJUST”. to confirm your system type. • To protect the unit, turn on the main power switch 6 hours before operation.
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• The heating capacity of the air conditioner declines • The movable limit of the flap is changeable. as the outside air temperature falls.In such a case, Contact your Daikin dealer for details. use the air conditioner in combi-nation with other heating systems.
Instruction SiEBE18-526 Press the AIR FLOW DIRECTION ADJUST button to select the air direction as following. PROGRAMMING TIME The AIR FLOW FLAP display swings as shown left and the Press the PROGRAMMING TIME button and air flow direction continuously set the time for stopping or starting the varies.
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SiEBE18-526 Instruction • Do not place other heaters directly below the Fig. 1 indoor unit. They may deform due to the heat. • Never place objects near the air inlet and the air outlet of the unit. It may cause deterioration in the effect or stop in the operation.
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Instruction SiEBE18-526 5. Shut the suction grille. Directly apply the type of detergent used for Refer to item No.1. cleaning ventilation fans or ovens, wait 10 minutes, and then rinse with water. 6. After turning on the power, press FILTER 5.
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It is necessary to clean operates in a mode different to what is the inside of the indoor unit. Ask your Daikin shown on the remote control display. dealer for details on cleaning the unit. This When using a unit in a multi system, the operation requires a qualified service person.
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3. The system operates but it does not suffi- take the measures shown below and contact ciently cool or heat. your Daikin dealer. • If the air inlet or outlet of the indoor or the outdoor The system must be repaired by a qualified service unit is blocked with obstacles.
SiEBE18-526 Instruction Ceiling Suspended Type 5 12 TEST AVAILABLE TEST System Configuration...
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Instruction SiEBE18-526 • The precautions described below are WARN- Ask your dealer to move and reinstall the air ING and CAUTION. These are very important conditioner. precautions concerning safety. Be sure to Incomplete installation may result in a failure, a observe all of them without fail.
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SiEBE18-526 Instruction Be sure the air conditioner is electrically grounded. HEATING Do not connect the grounding conductor to a gas pipe, INDOOR OUTDOOR water pipe, lightning arrester, and the grounding OUTDOOR UNIT TEMPERATURE TEMPERATURE conductor for a telephone. – 9 to 21 Imperfect grounding work may result in an electric shock.
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Instruction SiEBE18-526 • Make sure that a separate power supply DISPLAY “ ” “ ” “ ” “ ” “ ” circuit is provided for this air conditioner (OPERATION MODE) and that all electrical work is carried out by This display shows the current OPERATION qualified personnel according to local laws MODE.
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Refer to figure 1 on page [1] DEFROST OPERATION, the system returns to • Operating procedure varies with heat pump type HEATING OPERATION. and cooling only type. Contact your Daikin dealer Regarding outside air temperature and to confirm your system type. heating capacity •...
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Your hand may get caught if you attempt to make adjustments while the unit is swinging. B. Left and right direction A. UP AND DOWN DIRECTION • The movable limit of the flap is changeable. Contact your Daikin dealer for details. System Configuration...
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SiEBE18-526 Instruction • Press the TIMER ON/OFF BUTTON once again PROGRAM TIMER OPERATION to cancel programming. The display vanishes. Operate in the following order. • The timer is operated in the following two ways. • Programming the stop time ( ..
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Instruction SiEBE18-526 HOW TO CLEAN THE AIR FILTER 8. MAINTENANCE Clean the air filter when the display shows “ ” (FOR SERVICE PERSONNEL) (TIME TO CLEAN AIR FILTER). It will display that it will operate for a set amount of ONLY A QUALIFIED SERVICE PERSON IS time.
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SiEBE18-526 Instruction HOW TO CLEAN AIR OUTLET AND OUT- Turn on the main power supply switch SIDE PANELS • The display on the remote control will be shown when the power is turned on. • Clean with soft cloth. • To protect the unit, turn on the main power switch •...
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It is necessary to clean This is because operating mode is controlled by a the inside of the indoor unit. Ask your Daikin micro computer, as shown below, depending on dealer for details on cleaning the unit. This the operating mode of the other connected indoor operation requires a qualified service person.
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• If the heat source of the room is excessive INSPECTION No. in which a (when cooling). display malfunction occurs. Cooling effect decreases if heat gain of the room is too large. MALFUNCTION CODE Measure: Notify your Daikin dealer and inform him/her of the display. 3PN05140-1T System Configuration...
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Instruction SiEBE18-526 System Configuration...
SiEBE18-526 Part 8 Troubleshooting 1. Caution for Diagnosis................241 1.1 Troubleshooting with the Operation Lamp (RA Indoor Unit) ....241 1.2 Troubleshooting with the LED on the SkyAir Indoor Unit .....242 1.3 Troubleshooting with the LED on the Outdoor Unit......243 1.4 Troubleshooting with the LED on the BP Unit ........244 2.
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SiEBE18-526 7.2 Actuation of High Pressure Switch ............295 7.3 Actuation of Low Pressure Switch............296 7.4 Compressor Motor Lock ...............297 7.5 Malfunction of Outdoor Unit Fan Motor ..........298 7.6 Malfunction of Moving Part of Electronic Expansion Valve ....299 7.7 Abnormal Discharge Pipe Temperature ..........300 7.8 Malfunction of Thermistor for Outdoor Air (R1T) ........301 7.9 Malfunction of Discharge Pipe Thermistor (R3T) .........302 7.10 Malfunction of Thermistor (R2T) for Suction Pipe ........303...
SiEBE18-526 Caution for Diagnosis 1. Caution for Diagnosis Troubleshooting with the Operation Lamp (RA Indoor Unit) 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, disabling equipment operation.
Caution for Diagnosis SiEBE18-526 Caution: Operation stops suddenly. (Operation lamp blinks.) Cause of above trouble could be "Operation mode butting". Check followings; Are the operation modes all the same for indoor units connected to Multi system outdoor unit? If not set all indoor units to the same operation mode and confirm that the operation lamp is not blinking.
SiEBE18-526 Caution for Diagnosis Troubleshooting with the LED on the Outdoor Unit There are green and orange LEDs on the PCB. The blinking green LED indicates normal equipment condition, and the OFF condition of the orange LED indicates normal equipment condition.
Caution for Diagnosis SiEBE18-526 Troubleshooting with the LED on the BP Unit LEDA(H1P) LED1(H2P) LED2(H3P) LED3(H4P) LED4(H5P) (Q0395) Green Normally flashing LED-B (green) Normally off Intercommunication to Diagnosis outdoor unit: normal Normal Flash Abnormality Check inter-unit wiring Irrelevant Abnormality Check inter-unit wiring Green Microcomputer: Malfunction detection...
SiEBE18-526 Service Check Function 2. Service Check Function RA Indoor Unit Wireless Remote Controller In the ARC433A series remote controller, the temperature display sections on the main unit indicate corresponding codes. Check Method 1 1. When the timer cancel button is held down for 5 seconds, a “00” indication flashes on the temperature display section.
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Service Check Function SiEBE18-526 Check Method 2 1. Enter the diagnosis mode. s ,TEMP t , MODE) simultaneously. Press the 3 buttons (TEMP (R4272) The digit of the number of tens blinks. HTry again from the start when the digit does not blink. (R4273) 2.
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SiEBE18-526 Service Check Function 5. Press the TEMP button. s or TEMP t and change the digit until you hear the sound of “beep”. Press TEMP (R4277) 6. Diagnose by the sound. H“ pi ” : The both numbers of tens and units do not accord with the error code. H“...
Service Check Function SiEBE18-526 SkyAir Indoor Unit INSPECTION/TEST Button Explanation The following modes can be selected by using the [Inspection/Test Operation] button on the remote control. Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Depress Inspection/Test Operation button for more than 4 seconds.
SiEBE18-526 Service Check Function SkyAir Indoor Unit Wired Remote Controller Explanation If operation stops due to malfunction, the remote controller’s operation LED blinks, and malfunction code is displayed. (Even if stop operation is carried out, malfunction contents are displayed when the inspection mode is entered.) The malfunction code enables you to tell what kind of malfunction caused operation to stop.
Service Check Function SiEBE18-526 SkyAir Indoor Unit Wireless Remote Controller If equipment stops due to a malfunction, the operation indicating LED on the light reception section flashes. The malfunction code can be determined by following the procedure described below. (The malfunction code is displayed when an operation error has occurred.
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SiEBE18-526 Service Check Function Normal status Enters inspection mode from normal status when the INSPECITON/TEST button is pressed. 1 Press INSPECTION/TEST button. If no button is pressed for 1 minute, equipment returns to normal status. Press MODE selector button When MODE selector button is pressed or no button is pressed for 1 minute,...
Service Check Function SiEBE18-526 Sky Air Indoor Unit Error Codes and LED Indication Symbols : Blinks : On : Off — : No connection with troubleshooting : High probability of malfunction : Possibility of malfunction : Low probability of malfunction —...
SiEBE18-526 Service Check Function Malfunction Code Indication by Outdoor Unit PCB <Monitor mode> Contents of malfunction Malfunction To enter the monitor mode, push the code MODE button (BS1) when in “Setting Abnormal discharge pressure HPS activated mode 1”. Abnormal suction pressure Abnormal Pe Compressor lock Detection of INV compressor lock...
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Service Check Function SiEBE18-526 Malfunction Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 code LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED3 LED1 LED2 LED4 LED5 LED6 LED7 : ON : ON Malfunction code 1st Malfunction code 2nd...
SiEBE18-526 List of Malfunction Code 3. List of Malfunction Code 9: Blink 8: ON 7: OFF Malfunction Malfunction contents Page Referred code RA Indoor SkyAir BP Unit Outdoor Unit Indoor Unit Unit Indoor Error of external protection device — — —...
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List of Malfunction Code SiEBE18-526 9: Blink 8: ON 7: OFF Malfunction Malfunction contents Page Referred code RA Indoor SkyAir BP Unit Outdoor Unit Indoor Unit Unit Outdoor Malfunction of inverter radiating fin temperature rise — — — Unit Inverter compressor motor grounding, short circuit —...
SiEBE18-526 Troubleshooting for RA Indoor Unit 4. Troubleshooting for RA Indoor Unit Indoor Unit PCB Abnormality Remote Controller Display Method of Evaluation of zero-cross detection of power supply by indoor unit. Malfunction Detection Malfunction When there is no zero-cross detection in approximately 10 continuous seconds. Decision Conditions Supposed...
Troubleshooting for RA Indoor Unit SiEBE18-526 Freeze-up Protection Control or High Pressure Control Remote Controller Display Method of High pressure control (heat pump model only) Malfunction During heating operations, the temperature detected by the indoor heat exchanger thermistor is used for the high pressure control (stop, outdoor fan stop, etc.) Detection The freeze-up protection control (operation halt) is activated during cooling operation according to the temperature detected by the indoor unit heat exchanger thermistor.
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SiEBE18-526 Troubleshooting for RA Indoor Unit Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.06 Check the air passage. Refer to P.266 Is there any Provide sufficient air passage. short-circuit? Check the intake air filter.
Troubleshooting for RA Indoor Unit SiEBE18-526 Fan Motor or Related Abnormality 4.3.1 AC Motor (Wall 20~35 C series, Duct, Floor / Ceiling) Remote Controller Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Malfunction abnormal fan motor operation.
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SiEBE18-526 Troubleshooting for RA Indoor Unit 4.3.2 DC Motor (Wall 20~35 D series and 50~71 class, Floor) Remote Controller Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Malfunction abnormal fan motor operation. Detection Malfunction When the detected rotation speed is less than 50% of the H tap under maximum fan motor...
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Troubleshooting for RA Indoor Unit SiEBE18-526 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.01 Turn off power supply Refer to P.265 and rotate fan by hand. Check No.02 Does fan rotate Replace fan motor.
SiEBE18-526 Troubleshooting for RA Indoor Unit Thermistor or Related Abnormality (Indoor Unit) C4, C9 Remote Controller Display Method of The temperatures detected by the thermistors are used to determine thermistor errors. Malfunction Detection Malfunction When the thermistor input is more than 4.96 V or less than 0.04 V during compressor operation∗.
Troubleshooting for RA Indoor Unit SiEBE18-526 Shutter Drive Motor / Shutter Limit Switch Abnormality Remote Controller Display Method of The shutter open / close performance is detected by the limit switch attached on its structure. In this way, the shutter drive motor and the shutter limit switch are checked for failure. Malfunction Detection Malfunction...
SiEBE18-526 Troubleshooting for RA Indoor Unit Check 4.6.1 Fan Motor Connector Output Check Check No.01 1. Check connector connection. 2. Check motor power supply voltage output (pins 4-7 and 4-8). 3. Check motor control voltage (pins 4-3). 4. Check rotation command voltage output (pins 4-2). 5.
Troubleshooting for RA Indoor Unit SiEBE18-526 4.6.3 Thermistor Resistance Check Check No.06 Remove the connectors of the thermistors on the PCB, and measure the resistance of each thermistor using tester. The relationship between normal temperature and resistance is shown in the graph and the table below.
SiEBE18-526 Troubleshooting for RA Indoor Unit 4.6.4 Power Supply Waveforms Check Check No.10 Measure the power supply waveform between pins 1 and 3 on the terminal board, and check the waveform disturbance. Check to see if the power supply waveform is a sine wave (Fig.1). Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2) [Fig.1] [Fig.2]...
Troubleshooting for SkyAir Indoor Unit SiEBE18-526 5. Troubleshooting for SkyAir Indoor Unit Indoor Unit PCB Abnormality Remote Controller Display Applicable FFQ-B & FHQ-BU Models Method of Check data from E²PROM. Malfunction Detection Malfunction When data could not be correctly received from the E²PROM Decision E²PROM : Type of nonvolatile memory.
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit Malfunction of Drain Water Level System (Float Type) Remote Controller Display Applicable FFQ-B & FHQ-BU Models Method of By float switch OFF detection Malfunction Detection Malfunction When rise of water level is not a condition and the float switch goes OFF. Decision Conditions Supposed...
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Troubleshooting for SkyAir Indoor Unit SiEBE18-526 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. If “A3” is detected by a PC board which is not mounted with X15A, the PC board is defective.
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit Malfunction of Drain System Remote Controller Display Applicable FHQ-BU Models Method of Water leakage is detected based on float switch ON/OFF operation while the compressor is in Malfunction non-operation. Detection Malfunction When the float switch changes from ON to OFF while the compressor is in non-operation. Decision Conditions Supposed...
Troubleshooting for SkyAir Indoor Unit SiEBE18-526 Indoor Unit Fan Motor Lock Remote Controller Display Applicable FHQ-BU Models Method of Detection by failure of signal for detecting number of turns to come from the fan motor Malfunction Detection Malfunction When number of turns can’t be detected even when output voltage to the fan is maximum Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit Malfunction of Indoor Unit Fan Motor Remote Controller Display Applicable FFQ-B Models Method of Detection of abnormal fan speed by signal from the fan motor Malfunction Detection Malfunction When fan speed does not increase Decision Conditions Supposed...
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Troubleshooting for SkyAir Indoor Unit SiEBE18-526 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.01 Turn off the power supply. Refer to P.285 Is there any foreign matter Remove the foreign matter.
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit Swing Flap Motor Malfunction / Lock Remote Controller Display Applicable FHQ-BU Models Method of Utilizes ON/OFF of the limit switch when the motor turns. Malfunction Detection Malfunction When ON/OFF of the microswitch for positioning cannot be reversed even though the swing flap Decision motor is energized for a specified amount of time (about 30 seconds).
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Troubleshooting for SkyAir Indoor Unit SiEBE18-526 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. the connectors correctly connected Connect correctly. to X29A and X14A on the PC board? the limit switch's transfer Connect correctly.
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit Malfunction of Capacity Setting Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of Capacity is determined according to resistance of the capacity setting adaptor and the memory inside the IC memory on the indoor unit PCB, and whether the value is normal or abnormal is Malfunction determined.
Troubleshooting for SkyAir Indoor Unit SiEBE18-526 Malfunction of Heat Exchanger Thermistor (R2T) Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of Malfunction detection is carried out by temperature detected by heat exchanger sensor. Malfunction Detection Malfunction When the heat exchanger thermistor becomes disconnected or shorted while the unit is running. Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit Malfunction of Heat Exchanger Thermistor (R3T) Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of Malfunction detection is carried out by temperature detected by heat exchanger sensor (R3T). Malfunction Detection Malfunction When the heat exchanger thermistor becomes disconnected or shorted while the unit is running. Decision Conditions Supposed...
Troubleshooting for SkyAir Indoor Unit SiEBE18-526 5.10 Malfunction of Suction Air Thermistor Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of Malfunction detection is carried out by temperature detected by suction air temperature sensor. Malfunction Detection Malfunction When the suction air temperature sensor’s thermistor becomes disconnected or shorted while Decision the unit is running.
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit 5.11 Malfunction of Remote Controller Thermistor Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of Even if remote controller thermistor is faulty, system is possible to operate by system thermistor. Malfunction detection is carried out by temperature detected by remote controller thermistor. Malfunction Detection Malfunction...
Troubleshooting for SkyAir Indoor Unit SiEBE18-526 5.12 Transmission Error (between Indoor Unit and Remote Controller) Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of Microcomputer checks if transmission between indoor unit and remote controller is normal. Malfunction Detection Malfunction When transmission is not carried out normally for a certain amount of time Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit 5.13 Transmission Error (between Main and Sub Remote Controller) Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of In case of controlling with 2- remote controller, check the system using microcomputer if signal transmission between indoor unit and remote controller (main and sub) is normal. Malfunction Detection Malfunction...
Troubleshooting for SkyAir Indoor Unit SiEBE18-526 5.14 Malfunction of Field Setting Switch Remote Controller Display Applicable FFQ-B, FHQ-BU Models Method of Malfunction Detection Malfunction Incorrect field setting Decision Conditions Supposed Indoor-Outdoor (BP) transmission line Causes Faulty remote controller wiring Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred.
SiEBE18-526 Troubleshooting for SkyAir Indoor Unit 5.15 Check Check No. 01 Check for Fan Motor Connector (Power Supply Line) (1) Turn the power supply off. With the relay connector disconnected, measure the resistance between UVW phases of the connector (3 cores) at the motor side, then make sure that the resistance between each phase is balanced and not short-circuited.
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Troubleshooting for SkyAir Indoor Unit SiEBE18-526 Check No. 02 Check for Thermistors Disconnect the thermistor connector from PCB, then measure the resistance by using a tester. Unit : kΩ Thermistor temperature and resistance characteristics Temperature °C -6.0 90.8 88.0 -4.0 81.7 79.1 -2.0...
SiEBE18-526 Troubleshooting for BP Unit 6. Troubleshooting for BP Unit Malfunction of Electronic Expansion Valve Remote Controller Display Method of Detection by checking continuity and lack of connector. Malfunction Detection Malfunction Malfunction is determined by no common voltage applied when turning the power supply on. Decision Conditions Supposed...
Troubleshooting for BP Unit SiEBE18-526 Faulty BP Unit PCB Remote Controller Display Method of Check data from E²PROM Malfunction Detection Malfunction When data could not be correctly received from the E²PROM E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power Decision supply is turned off.
SiEBE18-526 Troubleshooting for BP Unit Faulty BP Liquid or Gas Pipe Thermistor Remote Controller Display Method of Malfunction Detection Malfunction When the BP liquid or gas pipe temperature sensor became short-circuited or open. Decision Conditions Supposed Faulty BP liquid or gas pipe temperature sensor Causes Faulty connectors connection of BP liquid or gas pipe temperature sensor Troubleshooting...
Troubleshooting for BP Unit SiEBE18-526 Transmission Error between Indoor Unit and BP Unit Outdoor Unit Indication Method of The data received from the BP unit in indoor unit-BP unit signal transmission is checked Malfunction whether it is normal. Detection Malfunction When the data sent from the BP unit cannot be received normally, or when the content of the data is abnormal.
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SiEBE18-526 Troubleshooting for BP Unit Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.14 Push and hold the RESET button on the outdoor unit PCB for 5 seconds Refer to P.293 Does the malfunction Normal...
Troubleshooting for BP Unit SiEBE18-526 Transmission Error between Outdoor Unit and BP Unit Outdoor Unit Indication Method of Transmission error is detected when the outdoor unit could not received the data from BP unit Malfunction correctly. Detection Malfunction When the data from BP unit could not be correctly received continuously for 10 minutes Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for BP Unit Check 6.6.1 Power Supply Waveforms Check Check No.14 Measure the power supply waveform between pins 1 and 3 on the terminal board, and check the waveform disturbance. Check to see if the power supply waveform is a sine wave (Fig.1). Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2) [Fig.1] [Fig.2]...
Troubleshooting for Outdoor Unit SiEBE18-526 7. Troubleshooting for Outdoor Unit Faulty Outdoor Unit PCB Remote Controller Display Applicable AII outdoor unit models Models Method of Check data from E²PROM Malfunction Detection Malfunction When data could not be correctly received from the E²PROM Decision E²PROM : Type of nonvolatile memory.
SiEBE18-526 Troubleshooting for Outdoor Unit Actuation of High Pressure Switch Remote Controller Display Applicable AII outdoor unit models Models Method of Abnormality is detected when the contact of the high pressure protection switch opens. Malfunction Detection Malfunction Error is generated when the HPS activation count reaches the number specific to the operation Decision mode.
Troubleshooting for Outdoor Unit SiEBE18-526 Actuation of Low Pressure Switch Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction Detection Malfunction Error is generated when the low pressure is dropped under specific pressure. Decision Conditions Supposed Abnormal drop of low pressure Defect of low pressure sensor Causes Defect of outdoor unit PCB...
SiEBE18-526 Troubleshooting for Outdoor Unit Compressor Motor Lock Remote Controller Display Applicable AII outdoor unit models Models Method of Inverter PC board takes the position signal from UVWN line connected between the inverter and compressor, and detects the position signal pattern. Malfunction Detection Malfunction...
Troubleshooting for Outdoor Unit SiEBE18-526 Malfunction of Outdoor Unit Fan Motor Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction of fan motor system is detected according to the fan speed detected by Hall IC when the fan motor runs. Malfunction Detection Malfunction...
SiEBE18-526 Troubleshooting for Outdoor Unit Malfunction of Moving Part of Electronic Expansion Valve Remote Controller Display Applicable AII outdoor unit models Models Method of Check disconnection of connector Check continuity of expansion valve coil Malfunction Detection Malfunction Error is generated under no common power supply when the power is on. Decision Conditions Supposed...
Troubleshooting for Outdoor Unit SiEBE18-526 Abnormal Discharge Pipe Temperature Remote Controller Display Applicable AII outdoor unit models Models Method of Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor. Malfunction Detection Malfunction When the discharge pipe temperature rises to an abnormally high level Decision When the discharge pipe temperature rises suddenly Conditions...
SiEBE18-526 Troubleshooting for Outdoor Unit Malfunction of Thermistor for Outdoor Air (R1T) Remote Controller Display Applicable AII outdoor unit models Models Method of The abnormal detection is based on current detected by current sensor. Malfunction Detection Malfunction When the outdoor air temperature sensor has short circuit or open circuit. Decision Conditions Supposed...
Troubleshooting for Outdoor Unit SiEBE18-526 Malfunction of Discharge Pipe Thermistor (R3T) Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected from the temperature detected by discharge pipe temperature thermistor. Malfunction Detection Malfunction When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected. Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.10 Malfunction of Thermistor (R2T) for Suction Pipe Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected from the temperature detected by the suction pipe temperature thermistor. Malfunction Detection Malfunction When a short circuit or an open circuit in the suction pipe temperature thermistor is detected.
Troubleshooting for Outdoor Unit SiEBE18-526 7.11 Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected from the temperature detected by the heat exchanger thermistor. Malfunction Detection Malfunction When a short circuit or an open circuit in the heat exchange thermistor is detected.
SiEBE18-526 Troubleshooting for Outdoor Unit 7.12 Malfunction of Receiver Gas Pipe Thermistor (R5T) Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected according to the temperature detected by receiver gas pipe thermistor (= Subcooling heat exchanger gas pipe thermistor). Malfunction Detection Malfunction...
Troubleshooting for Outdoor Unit SiEBE18-526 7.13 Outdoor Unit: Malfunction of High Pressure Sensor Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected from the pressure detected by the high pressure sensor. Malfunction Detection Malfunction When the high pressure sensor is short circuit or open circuit. Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.14 Malfunction of Low Pressure Sensor Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected from pressure detected by low pressure sensor. Malfunction Detection Malfunction When the low pressure sensor is short circuit or open circuit. Decision Conditions Supposed...
Troubleshooting for Outdoor Unit SiEBE18-526 7.15 Malfunction of Inverter Radiating Fin Temperature Rise Remote Controller Display Applicable AII outdoor unit models Models Method of Fin temperature is detected by the thermistor of the radiation fin. Malfunction Detection Malfunction When the temperature of the inverter radiation fin increases above 99°C. Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.16 Inverter Compressor Abnormal Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected from current flowing in the power transistor. Malfunction Detection Malfunction When an excessive current flows in the power transistor. Decision (Instantaneous overcurrent also causes activation.) Conditions...
Troubleshooting for Outdoor Unit SiEBE18-526 7.17 Inverter Current Abnormal Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected by current flowing in the power transistor. Malfunction Detection Malfunction When overload in the compressor is detected. Decision Conditions Supposed...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.18 Inverter Start up Error Remote Controller Display Applicable AII outdoor unit models Models Method of Malfunction is detected from current flowing in the power transistor. Malfunction Detection Malfunction When overload in the compressor is detected during startup Decision Conditions Supposed...
Troubleshooting for Outdoor Unit SiEBE18-526 7.19 Malfunction of Transmission between Inverter and Control PCB Remote Controller Display Applicable AII outdoor unit models Models Method of Check the communication state between inverter PCB and control PCB by micro-computer. Malfunction Detection Malfunction When the correct communication is not conducted in certain period.
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SiEBE18-526 Troubleshooting for Outdoor Unit Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Are the connectors between the main PC board (A1P) and Connect transmission wiring and inverter PCB turn on again.
Troubleshooting for Outdoor Unit SiEBE18-526 7.20 Malfunction of Inverter Radiating Fin Temperature Rise Sensor Remote Controller Display Applicable AII outdoor unit models Models Method of Resistance of radiation fin thermistor is detected when the compressor is not operating. Malfunction Detection Malfunction When the resistance value of thermistor becomes a value equivalent to open or short circuited Decision...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.21 Faulty Combination of Inverter and Fan Driver Remote Controller Display Applicable AII outdoor unit models Models Method of Check the communication state between inverter PCB and control PCB by micro-computer. Malfunction Detection Malfunction When the communication data about inverter PCB type is incorrect. Decision Conditions Supposed...
Troubleshooting for Outdoor Unit SiEBE18-526 7.22 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure Remote Controller Display Applicable AII outdoor unit models Models Method of Short of gas malfunction is detected by discharge pipe temperature thermistor. Malfunction Detection Malfunction...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.23 Power Supply Insufficient or Instantaneous Failure Remote Controller Display Applicable AII outdoor unit models Models Method of Detection of voltage of main circuit capacitor built in the inverter and power supply voltage. Malfunction Detection Malfunction Decision Conditions...
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Troubleshooting for Outdoor Unit SiEBE18-526 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. connection wire connected Repair wiring. between the connector X205A and X25A? Turn on again. Does the voltage between terminals P Replace the inverter PCB.
SiEBE18-526 Troubleshooting for Outdoor Unit 7.24 Check Operation not Executed Remote Controller Display Applicable AII outdoor unit models Models Method of Check operation is executed or not Malfunction Detection Malfunction Malfunction is decided when the unit starts operation without check operation. Decision Conditions Supposed...
Troubleshooting for Outdoor Unit SiEBE18-526 7.25 Malfunction in other Indoor Unit or other BP Unit Remote Controller Display Applicable AII indoor unit models Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Malfunction of electronic expansion valve in other BP unit Defect of PCB of other indoor unit or other BP unit Causes Troubleshooting...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.26 Mismatching of Indoor Unit, BP Unit and Outdoor Unit Remote Controller Display Applicable AII indoor unit models Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Defect of outdoor unit PCB (A1P) Mismatching of the refrigerant type of indoor and outdoor unit. Causes Setting of outdoor PCB was not conducted after replacing to spare parts PCB.
Troubleshooting for Outdoor Unit SiEBE18-526 7.27 Refrigerant System not Set, Incompatible Wiring/Piping Remote Controller Display Applicable AII BP unit models Models AII outdoor unit models Method of Malfunction Detection Malfunction Decision Conditions Supposed Failure to execute wiring check operation Defect of BP unit PCB Causes Failure to open the stop valve Troubleshooting...
SiEBE18-526 Troubleshooting for Outdoor Unit 7.28 Malfunction of System, Refrigerant System Address Undefined Remote Controller Display Applicable AII indoor unit models Models All BP unit models AII outdoor unit models Method of Malfunction Detection Malfunction Decision Conditions Supposed Defect of indoor unit PCB Defect of BP unit PCB Causes Defect of outdoor unit PCB (A1P)
Check SiEBE18-526 8. Check Check No. 08 Check on connector of fan motor (Power supply cable) (1) Turn off the power supply. Measure the resistance between phases of U,V,W at the motor side connectors (three-core wire) to check that the values are balanced and there is no short circuit, while connector or relay connector is disconnected.
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SiEBE18-526 Check Check No. 11 Check for Fan Speed Pulse Input on Outdoor Unit PC Board (1) Disconnect the connector X206A with the power supply OFF and Operation OFF. (2) Is the voltage between pins 4 and 3 of X206A about 15 VDC after turning the power supply (3) Is the voltage between pins 4 and 1 of X206A about 5 VDC? (4) Connect the connector X206A with the power supply OFF and Operation OFF.
Thermistor Resistance / Temperature Characteristics SiEBE18-526 9. Thermistor Resistance / Temperature Characteristics Indoor unit For air suction For liquid pipe For gas pipe Outdoor unit For outdoor air For coil For suction pipe For Receiver gas pipe (kΩ) T°C T°C 197.81 192.08 16.10...
SiEBE18-526 Part 9 Removal Procedure 1. Outdoor Unit..................330 1.1 Removal of Outer Panels ..............330 1.2 Removal of PCB...................337 1.3 Removal of Solenoid Valve, Four Way Valve and Motorized Valve..348 1.4 Removal of Thermistor Assembly ............349 1.5 Removal of Fan Motor................350 2.
Outdoor Unit SiEBE18-526 1. Outdoor Unit Removal of Outer Panels Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Appearance. Top panel Front panel Pipe outlet port (Q0446) Rear protective net Outdoor air...
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SiEBE18-526 Outdoor Unit Step Procedure Points 2. Removing the rear protective net Hooks Undo the three top Bend the rear protective net hooks first. slightly for easy removal. (Q0448) Next, undo the four right-side hooks. (See the figure at bottom.) (Q0449) Remove the rear protective net.
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Outdoor Unit SiEBE18-526 Step Procedure Points 3. Removing the top panel Remove the eight screws. (Q0451) Lift and remove the top panel. (Q0452) Removal Procedure...
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SiEBE18-526 Outdoor Unit Step Procedure Points 4. Removing the front panel Remove the screw. Pull the front panel toward yourself. Screw (Q0453) There are six hooks on the front panel. Slide the front panel downward to remove it. (Q0454) Removal Procedure...
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Outdoor Unit SiEBE18-526 Step Procedure Points 5. Removing the pipe cover Remove the screw. Pull the pipe cover toward yourself. Screw (Q0455) There are three hooks on the pipe cover. Slide the pipe cover upward to remove it. (Q0456) Removal Procedure...
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SiEBE18-526 Outdoor Unit Step Procedure Points 6. Right side panel Remove the six screws off the panel's front. Screws (Q0457) Remove the three screws off the panel's back and the two screws off the panel's side. Screws Screws (Q0458) Remove the right side panel.
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Outdoor Unit SiEBE18-526 Step Procedure Points 7. Removing the outdoor air thermistor Disconnect the outdoor air thermistor holder. Unhook the holder from inside of the right side panel for easy removal. (Q0461) The figure shows the state after disconnection. Outdoor air thermistor holder (Q0460) Removal Procedure...
SiEBE18-526 Outdoor Unit Removal of PCB Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the control Detach the two top locking guard spacers. Remove the drip proof Locking guard spacers.
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Outdoor Unit SiEBE18-526 Step Procedure Points Disconnect the X2A Solenoid valve (Hot gas) connectors one by one. X3A Solenoid valve (Receiver gas purge) X25A X34A X37A X44A X45A X5A Solenoid valve (4 way valve) X46A X6A Crankcase heater X22A Transformer X28A X23A Transformer X25A Connector for [X250A]...
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SiEBE18-526 Outdoor Unit Step Procedure Points Open the mounting plate's right side toward yourself. Remove the two TYRAP fixtures from behind the mounting plate. TYRAP fixtures (Q0468) Disconnect the Ground, Power terminals NA Ground connectors from the (white) / LA (red) / X1A (black) power filter PCB and The TYRAP fixture is to be kept cut off the TYRAP...
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Outdoor Unit SiEBE18-526 Step Procedure Points 3. Removing the power filter Cut off the two top TYRAP fixtures and TYRAP fixtures remove the drip proof cover. Power filter PCB Drip proof cover (Q0472) Cut off with nippers. The TYRAP fixture is to be kept in stock.
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SiEBE18-526 Outdoor Unit Step Procedure Points Release the compressor lead out of the groove. (Q0474) Remove the two Cut off with nippers. TYRAP fixtures. (Q0475) Removal Procedure...
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Outdoor Unit SiEBE18-526 Step Procedure Points Remove the screws of the reactor leads. Screws (Q0476) Remove the screw. Screw (Q0477) The power filter PCB is provided with two hooks. Slide the PCB to the right to unhook it. <Rear view> Hooks (Q0478) Removal Procedure...
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SiEBE18-526 Outdoor Unit Step Procedure Points 4. Removing the electrical assembly Remove the TYRAP Cut off with nippers. fixture. The TYRAP fixture is to be kept in stock. (Q0479) Lift the electrical assembly to unhook it. Hooks Electrical assembly Partition plate Hook holes (Q0480) Removal Procedure...
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Outdoor Unit SiEBE18-526 Step Procedure Points (Q0481) Disconnect the fan pcs.: Red and white motor relay connector. (Q0482) Removal Procedure...
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SiEBE18-526 Outdoor Unit Step Procedure Points Disconnect the HPS HPS connector: Red connector and the Electrical box connector: White electrical box connector from each other. Remove the TYRAP Cut off with nippers. fixture and unbind the The TYRAP fixture is to be kept leads.
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Outdoor Unit SiEBE18-526 Step Procedure Points Disconnect the fan Connector X206A: Red motor electrical box Connector X207A: White relay connector. (Q0486) 5. Removing the inverter Separate the power There are two hooks. Slide the filter PCB mounting plate to unhook it. Hooks plate from the electrical assembly.
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SiEBE18-526 Outdoor Unit Step Procedure Points Remove the screw and detach the inverter PCB. (Q0489) There are two hooks at the far side (condenser side). When reassembling, catch these hooks first. Hooks (Q0490) Removal Procedure...
Outdoor Unit SiEBE18-526 Removal of Solenoid Valve, Four Way Valve and Motorized Valve Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Removing the solenoid valve coil, motorized valve coil and four way valve coil Remove the solenoid...
SiEBE18-526 Outdoor Unit Removal of Thermistor Assembly Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the thermistors Remove the under cool thermistor. Remove the suction pipe thermistor.
Outdoor Unit SiEBE18-526 Removal of Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the front cover Remove the seven screws. (Q0495) Slide up the front cover to unhook and detach it.
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SiEBE18-526 Outdoor Unit Step Procedure Points 2. Removing the propeller Remove the nut and detach the propeller fan. (Q0497) Disconnect the fan motor lead's relay connector. Relay connector (Q0498) Removal Procedure...
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Outdoor Unit SiEBE18-526 Step Procedure Points Open the fan motor When reassembling, make sure lead fixture. the lead wires are fastened by the fixtures. (Q0499) Remove the four Remove the two bottom screws screws and take out the first. If the top two screws are fan motor.
SiEBE18-526 BP Unit 2. BP Unit Removal of PCB Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the PCB. Remove the four screws from the electrical box cover.
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BP Unit SiEBE18-526 Step Procedure Points Disconnect the solenoid valve connector and the thermistor connector. (Q0504) Remove the screw off the wire harness band. (Q0505) Remove the screw off the grounding lug. (Q0506) Removal Procedure...
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SiEBE18-526 BP Unit Step Procedure Points Disconnect the Faston terminal of the grounding cable. (Q0507) Remove the two screws and take out the PCB. (Q0508) Removal Procedure...
BP Unit SiEBE18-526 Removal of Solenoid Valve Coil Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the PCB. Preparations Take the steps for removing the Remove the legged PCB.
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SiEBE18-526 BP Unit Step Procedure Points Remove the sealing The sealing compound (1) is a Sealing compound (1) compound (1) of the servicing part. pipe insulation sleeves. (Q0512) (Q0513) Remove the putty. (Q0514) Cut off the TYRAP The TYRAP fixture is to be kept in TYRAP fixture stock.
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BP Unit SiEBE18-526 Step Procedure Points The TYRAP fixture is to be kept in stock. TYRAP fixtures (Q0516) Removal Procedure...
SiEBE18-526 Part 10 Appendix 1. Piping Diagrams..................360 1.1 Outdoor Units ..................360 1.2 BP Units ....................361 1.3 Indoor Units ..................362 2. Wiring Diagrams..................367 2.1 Outdoor Units ..................367 2.2 BP Units ....................368 2.3 Indoor Units ..................369 Appendix...
SiEBE18-526 Piping Diagrams BP Units BPMKS967A2B, BPMKS967B2B INDOOR UNIT GAS SIDE ROOM A REFRIGERANT FLOW THERMISTOR ( DGA ) ( 15.9CuT ) HEATING COOLING GAS SIDE ROOM B THERMISTOR ( DGB ) ( 15.9CuT ) ELECTRONIC EXPANSION VALVE ( BYPASS ) ELECTRONIC INDOOR UNIT FILTER...
Piping Diagrams SiEBE18-526 Indoor Units 1.3.1 Wall Mounted Type FTXS20/25/35D(2)VMW(L)(9) CTXS50D(2)VMW(L) FTXS20/25/35DA(3)VMW(L)(7) INDOOR UNIT INDOOR UNIT MAFFLER ASSY MAFFLER ASSY HEAT EXCHANGER HEAT EXCHANGER 7.0CuT 7.0CuT 6.4CuT 6.4CuT THERMISTOR THERMISTOR 6.4CuT 6.4CuT ON HEAT EXCH. ON HEAT EXCH. 6.4CuT 6.4CuT CROSS FLOW FAN CROSS FLOW FAN FIELD PIPING...
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SiEBE18-526 Piping Diagrams FTXS71BVMB INDOOR UNIT ( 7.9CuT ) HEAT EXCHANGER THERMISTOR ON HEAT EXCH. CROSS FLOW FAN FIELD PIPING ( 6.4CuT ) FAN MOTOR FIELD PIPING ( 15.9CuT ) ( 12.7CuT ) REFRIGERANT FLOW COOLING HEATING 4D040082H 1.3.2 Duct Connected Type FDXS25/35CVMB, FDXS25/35CAVMB, CDXS50/60CVMB INDOOR UNIT ( 6.4CuT )
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Piping Diagrams SiEBE18-526 1.3.3 Floor / Ceiling Suspended Dual Type FLXS25/35BVMB, FLXS25/35BAVMB FLXS50/60BVMB, FLXS50/60BAVMB INDOOR UNIT INDOOR UNIT ( 9.5CuT ) ( 6.4CuT ) HEAT EXCHANGER HEAT EXCHANGER THERMISTOR THERMISTOR ON HEAT FIELD PIPING ON HEAT FIELD PIPING EXCH. ( 6.4CuT ) EXCH.
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SiEBE18-526 Piping Diagrams 1.3.4 Floor Standing Type FVXS25/35BVMB, FVXS25/35BAVMB INDOOR UNIT HEAT EXCHANGER THERMISTOR CROSS FLOW FAN FAN MOTOR ON HEAT EXCH. 7.0CuT 7.0CuT CROSS FLOW FAN FAN MOTOR FIELD PIPING ( 6.4CuT ) SINGLE UNION JOINT 9.5CuT FIELD PIPING ( 9.5CuT ) SINGLE UNION JOINT REFRIGERANT FLOW...
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Piping Diagrams SiEBE18-526 1.3.5 Ceiling Mounted Cassette Type FFQ25/35/50/60B7V1B Indoor heat exchanger MODEL FFQ25 · 35B7V1B FFQ50 · 60B7V1B 12.7 Field piping φ C1220T-O Outdoor unit Field piping φ C1220T-O Indoor unit C : 4D039335 1.3.6 Ceiling Suspended Type FHQ35/50/60BUV1B9 Indoor heat exchanger Field piping φ...
SiEBE18-526 Wiring Diagrams Indoor Units 2.3.1 Wall Mounted Type FTXS20/25/35D(2)VMW(L)(9), FTXS20/25/35DA(3)VMW(L)(7), CTXS50D(2)VMW(L) FIELD WIRING. PCB1 PCB3 LED1 RECTIFIER 3.15A LED2 OUTDOOR CAUTION LED3 TRANSMISSION NOTE THAT OPERATION WILL CIRCUIT RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN.
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Wiring Diagrams SiEBE18-526 FTXS50BVMB FIELD WIRING. PCB3 PCB1 RECTIFIER 3.15A OUTDOOR t° CAUTION TRANSMISSION NOTE THAT OPERATION WILL CIRCUIT RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS PCB4 TURNED OFF AND THEN BACK ON AGAIN. LED1 LED2 LED3 : FRAME GROUND : FUSE H1~H3 : HARNESS...
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SiEBE18-526 Wiring Diagrams 2.3.2 Duct Connected Type FDXS25/35CVMB, FDXS25/35CAVMB, CDXS50/60CVMB PCB1 PCB2 V1TR 3.15A outdoor 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.
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SiEBE18-526 Wiring Diagrams 2.3.5 Ceiling Mounted Cassette Type FFQ25/35/50/60B7V1B : CONNECTER DISCRIMINATION COLOUR FOR COMPONENTS. : CONNECTER COLOUR FOR COMPONENTS. : CONNECTER COLOUR FOR PRINTED CIRCUIT BOARD. t° IN CASE OF SIMULTANEOUS t° t° OPERATION SYSTEM INDOOR UNIT INDOOR UNIT ( MASTER ) ( SLAVE ) NOTE : 5...
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Wiring Diagrams SiEBE18-526 2.3.6 Ceiling Suspended Type FHQ35/50/60BUV1B9 : CONNECTER DISCRIMINATION COLOUR FOR COMPONENTS. : CONNECTER COLOUR FOR COMPONENTS. IN CASE OF SIMULTANEOUS t° : CONNECTER COLOUR FOR PRINTED CIRCUIT BOARD. OPERATION SYSTEM t° t° INDOOR UNIT INDOOR UNIT TO OUTDOOR X19A X18A X17A...
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SiEBE18-526 Index check on connector of fan motor (power supply cable) ........324 A1 ..............257, 268 check operation ........... 109, 127 A3 .................269 check operation not executed ......319 A5 .................258 CJ ................ 281 A6 ..........260, 261, 272, 273 compressor motor lock ........297 A7 .................275 compressor PI control ...........
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SiEBE18-526 Drawings & Flow Charts freeze-up protection control or high pressure control ........258 abnormal discharge pipe temperature ....300 full closing of motorized valves ......77 actuation of high pressure switch ......295 function outline ............93 actuation of low pressure switch ......296 functional parts layout ...........
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SiEBE18-526 malfunction of moving part of electronic expansion power supply waveforms check ....267 valve ..............299 pressure sensor ..........328 malfunction of outdoor unit fan motor ....298 program dry operation function ......101 malfunction of receiver gas pipe programme dry function ........82 thermistor (R5T) ..........305 malfunction of remote controller thermistor ..281 malfunction of suction air thermistor ....280...
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"The present publication is drawn up by way of Daikin Europe N.V. is approved by LRQA for its Quality Daikin units comply with the European regulations that information only and does not constitute an offer Management System in accordance with the ISO9001 guarantee the safety of the product.
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2 / 5 Connect BP unit DS1-3 BP Unit Not connect BP unit DS1-4 Not Used Do not change the factory setting...