Page 1 SiBE12- 818 E-Series [Applied Models] Inverter Multi : Cooling Only Inverter Multi : Heat Pump...
Page 2 SiBE12-818 SUPER MULTI NX E-Series Cooling Only Indoor Unit FTXS20G2V1B FDKS50CVMB FLKS25BAVMB FTXS25G2V1B FDKS60CVMB FLKS35BAVMB FTXS35G2V1B FDKS25EAVMB FLKS50BAVMB FTXS42G2V1B FDKS35EAVMB FLKS60BAVMB FTXS50G2V1B FVXS25FV1B FTKS60FV1B FVXS35FV1B FTKS71FV1B FVXS50FV1B FHQ35BVV1B FHQ50BVV1B FHQ60BVV1B Outdoor Unit 5MKS90E7V3B Heat Pump Indoor Unit FTXG25EV1BW FDXS50CVMB FLXS25BAVMB...
Page 3: Table Of Contents
SiBE12-818 1. Introduction .....................v 1.1 Safety Cautions ..................v 1.2 Used Icons ....................ix Part 1 List of Functions ..............1 1. List of Functions ..................2 1.1 Cooling Only Models ................2 1.2 Heat Pump Models...................7 Part 2 Specifications ..............13 1. Specifications ..................14 1.1 Indoor Units - Cooling Only ..............14 1.2 Outdoor Units - Cooling Only ..............20 1.3 Indoor Units - Heat Pump...............21...
Page 4 SiBE12-818 3.5 Input Current Control................80 3.6 Freeze-up Protection Control ..............81 3.7 Heating Peak-cut Control ...............81 3.8 Fan Control.....................82 3.9 Liquid Compression Protection Function 2..........82 3.10 Defrost Control ..................83 3.11 Electronic Expansion Valve Control ............84 3.12 Malfunctions ...................88 3.13 Forced Operation Mode .................89 3.14 Wiring-Error Check.................90 3.15 Additional Function.................92 Part 5 Operation Manual .............
Page 5 SiBE12-818 5.21 Thermistor or Related Abnormality (Outdoor Unit).......240 5.22 Electrical Box Temperature Rise............242 5.23 Radiation Fin Temperature Rise ............244 5.24 Output Over Current Detection.............246 5.25 Insufficient Gas..................248 5.26 Low-voltage Detection or Over-voltage Detection........250 5.27 Signal Transmission Error (on Outdoor Unit PCB).......251 5.28 Anti-icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units) ............252 6.
Page 6: Introduction
SiBE12-818 Introduction 1. Introduction Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “ Warning” and “ Caution”. The “ Warning” Warnings items are especially important since they can lead to death or serious injury if they are not followed closely.
Page 7 Introduction SiBE12-818 Warning Be sure to wear a safety helmet, gloves, and a safety belt when working at a high place (more than 2m). Insufficient safety measures may cause a fall accident. In case of R410A refrigerant models, be sure to use pipes, flare nuts and tools for the exclusive use of the R410A refrigerant.
Page 8 SiBE12-818 Introduction 1.1.2 Cautions Regarding Safety of Users Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools may cause an electrical shock, excessive heat generation or fire.
Page 9 Introduction SiBE12-818 Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet securely. If the plug has dust or loose connection, it may cause an electrical shock or fire. Be sure to install the product correctly by using the provided standard For unitary type installation frame.
Page 10: Used Icons
SiBE12-818 Introduction Caution Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 MΩ or higher. Faulty insulation may cause an electrical shock. Be sure to check the drainage of the indoor unit after the repair. Faulty drainage may cause the water to enter the room and wet the furniture and floor.
Page 11 Introduction SiBE12-818...
Page 12: Part 1 List Of Functions
SiBE12-818 Part 1 List of Functions 1. List of Functions ..................2 1.1 Cooling Only Models ................2 1.2 Heat Pump Models...................7 List of Functions...
Page 13: List Of Functions
List of Functions SiBE12-818 1. List of Functions Cooling Only Models Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — Function Clean Operation Limit for Cooling (°CDB) — Operation Limit for Heating (°CWB) —...
Page 14 SiBE12-818 List of Functions Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — Function Clean Operation Limit for Cooling (°CDB) — Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter — Air Purifying Filter with Photocatalytic PAM Control —...
Page 15 List of Functions SiBE12-818 Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — — Function Clean Operation Limit for Cooling (°CDB) — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
Page 16 SiBE12-818 List of Functions Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — — Function Clean Operation Limit for Cooling (°CDB) — — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
Page 17 List of Functions SiBE12-818 Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — Function Clean –10 Operation Limit for Cooling (°CDB) Photocatalytic Deodorizing Filter — Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
Page 18: Heat Pump Models
SiBE12-818 List of Functions Heat Pump Models Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — — Function Clean Operation Limit for Cooling (°CDB) — — Operation Limit for Heating (°CWB) — — Photocatalytic Deodorizing Filter —...
Page 19 List of Functions SiBE12-818 Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — Function Clean Operation Limit for Cooling (°CDB) — Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter — Air Purifying Filter with Photocatalytic PAM Control —...
Page 20 SiBE12-818 List of Functions Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — Function Clean Operation Limit for Cooling (°CDB) — Photocatalytic Deodorizing Filter — Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
Page 21 List of Functions SiBE12-818 Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — — Function Clean Operation Limit for Cooling (°CDB) — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
Page 22 SiBE12-818 List of Functions Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — — Function Clean Operation Limit for Cooling (°CDB) — — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
Page 23 List of Functions SiBE12-818 Category Functions Category Functions Basic Inverter (with Inverter Power Control) Health & Air Purifying Filter — Function Clean –10 Operation Limit for Cooling (°CDB) Photocatalytic Deodorizing Filter — –15 Air Purifying Filter with Photocatalytic Operation Limit for Heating (°CWB) —...
Page 24: Part 2 Specifications
SiBE12-818 Part 2 Specifications 1. Specifications ..................14 1.1 Indoor Units - Cooling Only ..............14 1.2 Outdoor Units - Cooling Only ..............20 1.3 Indoor Units - Heat Pump...............21 1.4 Outdoor Units - Heat Pump ..............29 Specifications...
Page 25: Specifications
Specifications SiBE12-818 Specifications Indoor Units - Cooling Only Wall Mounted Type 50Hz 230V Model FTXS20G2V1B FTXS25G2V1B Rated Capacity 2.0kW Class 2.5kW Class Front Panel Color White White 9.4 (332) 9.1 (321) 7.4 (262) 7.1 (252) m³/min Air Flow Rates (cfm) 5.5 (193) 5.2 (182) 4.0 (141)
Page 26 SiBE12-818 Specifications 50Hz 230V Model FTXS50G2V1B Rated Capacity 5.0kW Class Front Panel Color White 10.2 (360) 8.6 (305) m³/min Air Flow Rates (cfm) 7.0 (246) 6.0 (212) Type Cross Flow Fan Motor Output Speed Steps 5 Steps, Quiet, Auto Air Direction Control Right, Left, Horizontal, Downward Air Filter Removable / Washable / Mildew Proof...
Page 27 Specifications SiBE12-818 Duct Connected Type 50Hz 230V Model FDKS50CVMB FDKS60CVMB Rated Capacity 5.0kW Class 6.0kW Class — — Front Panel Color 12.0 (424) 16.0 (565) 11.0 (388) 14.8 (523) m³/min Air Flow Rates (cfm) 10.0 (353) 13.5 (477) 8.4 (297) 11.2 (395) Type Sirocco Fan...
Page 28 SiBE12-818 Specifications Floor / Ceiling Suspended Dual Type 50Hz 230V Model FLKS25BAVMB FLKS35BAVMB Rated Capacity 2.5kW Class 3.5kW Class Front Panel Color Almond White Almond White 7.6 (268) 8.6 (304) 6.8 (240) 7.6 (268) m³/min Air Flow Rates (cfm) 6.0 (212) 6.6 (233) 5.2 (184) 5.6 (198)
Page 29 Specifications SiBE12-818 Floor Standing Type 50Hz 230V Model FVXS25FV1B FVXS35FV1B Rated Capacity 2.5kW Class 3.5kW Class Front Panel Color White White 8.2 (290) 8.5 (300) 6.5 (229) 6.7 (237) m³/min Air Flow Rates (cfm) 4.8 (169) 4.9 (174) 4.1 (146) 4.5 (158) Type Turbo Fan...
Page 30 SiBE12-818 Specifications Ceiling-suspended Type 50Hz 230V Model FHQ35BVV1B FHQ50BVV1B FHQ60BVV1B Rated Capacity 3.5kW Class 5.0kW Class 6.0kW Class Color White White White Decoration Panel Dimensions (H×W×D) — — — 13.0 (458) 13.0 (458) 17.0 (600) — — — m³/min Air Flow Rates (cfm) 10.0 (353) 10.0 (353)
Page 31: Outdoor Units - Cooling Only
Specifications SiBE12-818 Outdoor Units - Cooling Only 50Hz 230V Model 5MKS90E7V3B — Cooling Capacity — Power Consumption — Running Current Casing Color Ivory White Type Hermetically Sealed Swing Type Compressor Model 2YC63BXD Motor Output 1,920 Model FVC50K Refrigerant Oil Charge 0.75 Type R-410A...
Page 32: Indoor Units - Heat Pump
SiBE12-818 Specifications Indoor Units - Heat Pump Wall Mounted Type 50Hz 230V FTXG25EV1BW FTXG25EV1BS Model Cooling Heating Cooling Heating Rated Capacity 2.5kW Class 2.5kW Class Front Panel Color Mat Crystal White Mat Crystal Silver 7.7 (271) 9.0 (317) 7.7 (271) 9.0 (317) 6.1 (215) 7.9 (278)
Page 33 Specifications SiBE12-818 50Hz 230V CTXG50EV1BW CTXG50EV1BS Model Cooling Heating Cooling Heating Rated Capacity 5.0kW Class 5.0kW Class Front Panel Color Mat Crystal White Mat Crystal Silver 11.3 (398) 12.6 (444) 11.3 (398) 12.6 (444) 9.1 (320) 10.6 (373) 9.1 (320) 10.6 (373) m³/min Air Flow Rates...
Page 34 SiBE12-818 Specifications 50Hz 230V FTXS35G2V1B FTXS42G2V1B Model Cooling Heating Cooling Heating Rated Capacity 3.5kW Class 4.2kW Class Front Panel Color White White 10.7 (367) 10.6 (374) 9.1 (321) 11.2 (395) 7.7 (270) 8.5 (302) 7.7 (273) 9.4 (333) m³/min Air Flow Rates (cfm) 4.8 (170) 6.4 (226)
Page 35 Specifications SiBE12-818 50Hz 230V FTXS60FV1B FTXS71FV1B Model Cooling Heating Cooling Heating Rated Capacity 6.0kW Class 7.1kW Class Front Panel Color White White 16.2 (572) 17.4 (614) 17.4 (614) 19.7 (696) 13.6 (480) 15.1 (533) 14.6 (516) 16.9 (597) m³/min Air Flow Rates (cfm) 11.4 (403) 12.7 (448)
Page 36 SiBE12-818 Specifications Duct Connected Type 50Hz 230V FDXS50CVMB FDXS60CVMB Model Cooling Heating Cooling Heating Rated Capacity 5.0kW Class 6.0kW Class — — Front Panel Color 12.0 (424) 12.0 (424) 16.0 (565) 16.0 (565) 11.0 (388) 11.0 (388) 14.8 (523) 14.8 (523) m³/min Air Flow Rates (cfm)
Page 37 Specifications SiBE12-818 Floor / Ceiling Suspended Dual Type 50Hz 230V FLXS25BAVMB FLXS35BAVMB Model Cooling Heating Cooling Heating Rated Capacity 2.5kW Class 3.5kW Class Front Panel Color Almond White Almond White 7.6 (268) 9.2 (325) 8.6 (304) 9.8 (346) 6.8 (240) 8.3 (293) 7.6 (268) 8.9 (314)
Page 38 SiBE12-818 Specifications Floor Standing Type 50Hz 230V FVXS25FV1B FVXS35FV1B Model Cooling Heating Cooling Heating Rated Capacity 2.5kW Class 3.5kW Class Front Panel Color White White Air Flow Rates 8.2 (290) 8.8 (311) 8.5 (300) 9.4 (332) 6.5 (229) 6.9 (244) 6.7 (237) 7.3 (258) m³/min...
Page 39 Specifications SiBE12-818 Ceiling-suspended Type 50Hz 230V FHQ35BVV1B FHQ50BVV1B FHQ60BVV1B Model Cooling Heating Cooling Heating Cooling Heating Rated Capacity 3.5kW Class 5.0kW Class 6.0kW Class Color White White White Decoration Panel Dimensions (H×W×D) — — — 13.0 (458) 13.0 (458) 13.0 (458) 13.0 (458) 17.0 (600) 16.0 (565)
Page 40: Outdoor Units - Heat Pump
SiBE12-818 Specifications Outdoor Units - Heat Pump 50Hz 230V 4MXS80E7V3B 5MXS90E7V3B Model Cooling Heating Cooling Heating — — Cooling Capacity — — Power Consumption — — Running Current Casing Color Ivory White Ivory White Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Compressor Model 2YC63BXD...
Page 41 Specifications SiBE12-818 Specifications...
Page 42: Part 3 Printed Circuit Board Connector Wiring Diagram
SiBE12-818 Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram........32 1.1 Wall Mounted Type ................32 1.2 Duct Connected Type................38 1.3 Floor / Ceiling Suspended Dual Type.............40 1.4 Floor Standing Type ................43 1.5 Ceiling Suspended Type ................45 1.6 Outdoor Units ..................47 Printed Circuit Board Connector Wiring Diagram...
Page 43: Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram SiBE12-818 Printed Circuit Board Connector Wiring Diagram Wall Mounted Type 1.1.1 FTXS20~50G Connectors PCB(1) (Control PCB) Connector for DC fan motor Connector for centralized control (HA) Connector for INTELLIGENT EYE sensor PCB Connector for heat exchanger thermistor Connector for swing motor Connector for display PCB Connector for signal receiver PCB...
Page 44 SiBE12-818 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB LED A S47 JC JB S21 2P206687 PCB(2): Signal Receiver PCB PCB(3): Display PCB RTH1 LED3 LED2 LED1 (R8246) (R8247) PCB(4): INTELLIGENT EYE sensor PCB 3EB86013 Printed Circuit Board Connector Wiring Diagram...
Page 45 Printed Circuit Board Connector Wiring Diagram SiBE12-818 1.1.2 FTK(X)S60/71F Connectors PCB(1) (Control PCB) Connector for DC fan motor Connector for swing motor (horizontal blades) Connector for swing motor (vertical blades) Connector for centralized control (HA) Connector for buzzer PCB Connector for signal receiver PCB Connector for heat exchanger thermistor Connector for Intelligent Eye sensor PCB PCB(2) (Signal Receiver PCB)
Page 46 SiBE12-818 Printed Circuit Board Connector Wiring Diagram 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...
Page 47 Printed Circuit Board Connector Wiring Diagram SiBE12-818 1.1.3 FTXG25~35E, CTXG50E Connectors PCB(1) (Control PCB) Connector for fan motor Connector for centralized control (HA) Connector for heat exchanger thermistor Connector for INTELLIGENT EYE sensor PCB and control Connector for swing motor Connector for signal receiver PCB Connector for reduction motor (front panel mechanism) Connector for front panel limit switch...
Page 48 SiBE12-818 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB (indoor unit) JA JC LED A (R4991) PCB(2): Signal Receiver PCB RTH1 LED4 LED2 LED3 (R4992) PCB(3): INTELLIGENT EYE sensor PCB (R4988) Printed Circuit Board Connector Wiring Diagram...
Page 49: Duct Connected Type
Printed Circuit Board Connector Wiring Diagram SiBE12-818 Duct Connected Type Connectors PCB(1) (Control PCB) Connector for AC fan motor Connector for AC fan motor Connector for centralized control to 5 rooms Connector for display PCB Connector for heat exchanger thermistor PCB(2) (Display PCB) Connector for control PCB Note:...
Page 50 SiBE12-818 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB (2): Display PCB 2P084375 Printed Circuit Board Connector Wiring Diagram...
Page 51: Floor / Ceiling Suspended Dual Type
Printed Circuit Board Connector Wiring Diagram SiBE12-818 Floor / Ceiling Suspended Dual Type Connectors PCB(1) (Control PCB) Connector for swing motor (horizontal swing) Connector for AC fan motor Connector for centralized control Connector for display PCB Connector for signal receiver PCB Connector for heat exchanger thermistor Connector for power supply PCB PCB(2) (Power Supply PCB)
Page 52 SiBE12-818 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB (1): Control PCB PCB Detail PCB (2): Power Supply PCB Printed Circuit Board Connector Wiring Diagram...
Page 53 Printed Circuit Board Connector Wiring Diagram SiBE12-818 PCB (3): Display PCB PCB (4): Signal Receiver PCB EX511 REV 12 PHOTO 2P084377- 1 S31(RTH) (R6057) Printed Circuit Board Connector Wiring Diagram...
Page 54: Floor Standing Type
SiBE12-818 Printed Circuit Board Connector Wiring Diagram Floor Standing Type Connectors PCB(1) (Sensor PCB) Connector for control PCB PCB(2) (Control PCB) Connector for fan motor Connector for centralized control Connector for service PCB Connector for lower air outlet motor Connector for swing motor Connector for display PCB Connector for sensor PCB PCB(3) (Service PCB)
Page 55 Printed Circuit Board Connector Wiring Diagram SiBE12-818 PCB Detail PCB(1): Sensor PCB 3P191450 PCB(2): Control PCB LED A 2P191446 PCB(3): Service PCB PCB(3): Display PCB LED1 LED2 3P191447 3P191448 Printed Circuit Board Connector Wiring Diagram...
Page 56: Ceiling Suspended Type
SiBE12-818 Printed Circuit Board Connector Wiring Diagram Ceiling Suspended Type Connectors Connector for Terminal Strip (for Wired Remote Controller) X14A Connector for Limit Switch (for Swing Flap) X15A Connector for Drain Pump (Optional Accessory) X17A Connector for Heat Exchanger Thermistor (2) X18A Connector for Heat Exchanger Thermistor (1) X19A...
Page 57 Printed Circuit Board Connector Wiring Diagram SiBE12-818 PCB Detail Capacity setting adaptor X19A X18A X40A X15A X14A X17A X61A X35A X60A X33A (Service monitor LED) X24A X26A X27A X29A X20A X25A 2P095007 Printed Circuit Board Connector Wiring Diagram...
Page 58: Outdoor Units
SiBE12-818 Printed Circuit Board Connector Wiring Diagram Outdoor Units Connectors PCB(1)(Main PCB) Connector for terminal strip (indoor-outdoor transmission) Connector for COOL / HEAT mode lock Connector for electronic expansion valve coil A port (white) Connector for electronic expansion valve coil B port (red) Connector for electronic expansion valve coil C port (blue) Connector for electronic expansion valve coil D port (yellow) Connector for electronic expansion valve coil E port (green)
Page 59 Printed Circuit Board Connector Wiring Diagram SiBE12-818 PCB Detail PCB(1): Main PCB FU2(3.15A) V100 (30A) S101 FU3(3.15A) (R7123) Printed Circuit Board Connector Wiring Diagram...
Page 60 SiBE12-818 Printed Circuit Board Connector Wiring Diagram PCB(2): Service Monitor PCB (4-room model) PCB(2): Service Monitor PCB (5-room model) Printed Circuit Board Connector Wiring Diagram...
Page 61 Printed Circuit Board Connector Wiring Diagram SiBE12-818 Printed Circuit Board Connector Wiring Diagram...
Page 62: Part 4 Function And Control
SiBE12-818 Part 4 Function and Control 1. Main Functions..................52 1.1 Frequency Principle................52 1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..54 1.3 Operation Starting Control..............56 1.4 Fan Speed Control for Indoor Units............57 1.5 Programme Dry Function ...............58 1.6 Automatic Operation................59 1.7 Thermostat Control.................60 1.8 Night Set Mode..................61 1.9 ECONO Mode ..................62...
Page 63: Main Functions
Main Functions SiBE12-818 1. Main Functions Note: See the list of functions for the functions applicable to different models. Frequency Principle Main Control The compressor is frequency-controlled during normal operation. The target frequency is set by the following 2 parameters coming from the operating indoor unit: Parameters The load condition of the operating indoor unit The difference between the room temperature and the set temperature...
Page 64 SiBE12-818 Main Functions Inverter Features The inverter provides the following features: The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling / heating load. Quick heating and quick cooling The compressor rotational speed is increased when starting the heating (or cooling). This enables a quick set temperature.
Page 65: Power-Airflow Dual Flaps, Wide Angle Louvers And Auto-Swing
Main Functions SiBE12-818 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 control area in cooling, heating and dry mode. Dual Flaps Heating Mode During heating mode, the large flap enables direct warm air straight downwards.
Page 66 SiBE12-818 Main Functions FTXS20-50G The vertical swing flap is controlled not to blow the air directly on the person in the room. The airflow rate is controlled automatically within the following steps. Cooling: L tap – MH tap (same as AUTOMATIC) Heating: Equivalent to ML tap –...
Page 67: Operation Starting Control
Main Functions SiBE12-818 Operation Starting Control FTXG25-35E, CTXG50E The system carries out the following control at the beginning to conduct every functional parts properly. 1. Opening the front panel fully 2. Output of the ∆ D signal after the front panel starts moving 3.
Page 68: Fan Speed Control For Indoor Units
SiBE12-818 Main Functions 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 217.
Page 69: Programme Dry Function
Main Functions SiBE12-818 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.
Page 70: Automatic Operation
SiBE12-818 Main Functions 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.
Page 71: Thermostat Control
Main Functions SiBE12-818 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.
Page 72: Night Set Mode
SiBE12-818 Main Functions 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.
Page 73: Econo Mode
Main Functions SiBE12-818 ECONO Mode Outline FTXS20-50G, FVXS25-50F 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.
Page 74: Intelligent Eye (Ftxg-E, Ctxg-E, Ft(X)S-F)
SiBE12-818 Main Functions 1.10 INTELLIGENT EYE (FTXG-E, CTXG-E, FT(X)S-F) 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.
Page 75 Main Functions SiBE12-818 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.
Page 76: Area Intelligent Eye (Ftxs-G)
SiBE12-818 Main Functions 1.11 2 AREA INTELLIGENT EYE (FTXS-G) The following functions can be performed by a human motion sensor (INTELLIGENT EYE). 1. Reduces the capacity when there is no human in the room in order to save electricity. (energy saving operation) 2.
Page 77 Main Functions SiBE12-818 2. The motions in energy saving operation (for example: in cooling) within 20 minutes. 20 min. 20 min. Human detection signal RESET. (From area A or B) Cooling : Set temp. + 2˚C Heating : Set temp. - 2˚C Set temp.
Page 78: Home Leave Operation
SiBE12-818 Main Functions 1.12 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.
Page 79: Inverter Powerful Operation
Main Functions SiBE12-818 1.13 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 temperature will be converted to the following states in a period of 20 minutes.
Page 80: Other Functions
SiBE12-818 Main Functions 1.14 Other Functions 1.14.1 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.
Page 81 Main Functions SiBE12-818 1.14.4 Titanium Apatite Photocatalytic Air-Purifying Filter For FTXS20-50G, FTK(X)S60/71F, FVXS25-50F, FTXG25/35E, CTXG50E This filter combines the Air Purifying Filter and Titanium Apatite Photocatalytic Deodorizing Filter in a single highly effective unit. The filter traps microscopic particles, decompose odours and even deactivates bacteria and viruses.
Page 82: Function Of Main Structural Parts
SiBE12-818 Function of Main Structural Parts 2. Function of Main Structural Parts Main Structural Parts Heat Pump Model Expansion valve Four way valve (R4595) Compressor Cooling Only Model Expansion valve Compressor (R4596) Note: Expansion Valve : In Case of 4 port model..EVA-D, 5 port model..EVA-E. Function and Control...
Page 83: Function Of Thermistor
Function of Main Structural Parts SiBE12-818 Function of Thermistor 2.2.1 Heat Pump Model Expansion valve Four way valve Compressor (R4600) A Outdoor Heat 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature. The system sets a target discharge temperature according to the outdoor and indoor heat Exchanger exchanger temperature, and controls the electronic expansion valve opening so that the Thermistor...
Page 84 SiBE12-818 Function of Main Structural Parts D Indoor Heat 1. The indoor heat exchanger thermistors are used for controlling target discharge temperature. Exchanger The system sets a target discharge pipe temperature according to the outdoor and indoor Thermistor heat exchanger temperature, and controls the electronic expansion valve opening so that the target discharge temperature can be obtained.
Page 85 Function of Main Structural Parts SiBE12-818 2.2.2 Cooling Only Model Expansion valve Compressor (R4601) A Outdoor Heat 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature. The system sets a target discharge temperature according to the outdoor and indoor heat Exchanger exchanger temperature, and controls the electronic expansion valve opening so that the Thermistor...
Page 86 SiBE12-818 Function of Main Structural Parts D Indoor Heat 1. The indoor heat exchanger thermistors are used for controlling target discharge temperature. Exchanger The system sets a target discharge pipe temperature according to the outdoor and indoor Thermistor heat exchanger temperature, and controls the electronic expansion valve opening so that the target discharge temperature can be obtained.
Page 87: Control Specification
Control Specification SiBE12-818 3. Control Specification Mode Hierarchy Outline There are two modes; the mode selected in user’s place (normal air conditioning mode) and forced operation mode for installation and providing service. Detail 1. For heat pump model There are following modes; stop, cooling (includes drying), heating (include defrosting) Air conditioner control mode Forced operating mode Forced cooling...
Page 88: Frequency Control
SiBE12-818 Control Specification Frequency Control Outline Frequency that corresponds to each room’s capacity will be determined according to the difference in the temperature of each room and the temperature that is set by the remote controller. The function is explained as follows. 1.
Page 89 Control Specification SiBE12-818 2. Determine upper limit frequency Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions: Compressor protection, input current, discharge pipes, freeze-up protection, dew prevention, fin thermistor temperature. 3. Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions: Pressure difference upkeep.
Page 90: Controls At Mode Changing / Start-Up
SiBE12-818 Control Specification Controls at Mode Changing / Start-up 3.3.1 Preheating Operation Outline Operate the inverter in the open phase operation with the conditions including the preheating command from the indoor, the outdoor air temperature and discharge pipe temperature. (The power consumption of compressor during preheat operation is 35 W.) Detail Preheating ON Condition When outdoor air temperature is below 10.5°C and discharge pipe temperature is below...
Page 91: Discharge Pipe Temperature Control
Control Specification SiBE12-818 Discharge Pipe Temperature Control Outline The discharge pipe temperature is used as the compressor's internal temperature. If the discharge pipe temperature rises above a certain level, the operating frequency upper limit is set to keep this temperature from going up further. Detail Zones Management within the Zone...
Page 92: Freeze-Up Protection Control
SiBE12-818 Control Specification Freeze-up Protection Control Outline During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent freezing of the indoor heat exchanger. (The signal from the indoor unit must be divided into the zones as the followings. Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec from...
Page 93: Fan Control
Control Specification SiBE12-818 Fan Control Outline Fan control is carried out according to the following conditions. 1. Fan ON control for electric component cooling fan 2. Fan control when defrosting 3. Fan OFF delay when stopped 4. ON/OFF control when cooling operation 5.
Page 94: Defrost Control
SiBE12-818 Control Specification 3.10 Defrost Control Outline Heat Pump Only Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing. Detail Conditions for Starting Defrost The starting conditions must be made with the outdoor air temperature and heat exchanger temperature.
Page 95: Electronic Expansion Valve Control
Control Specification SiBE12-818 3.11 Electronic Expansion Valve Control Outline The following items are included in the electronic expansion valve control. Electronic expansion valve is fully closed 1. Electronic expansion valve is fully closed when turning on the power. 2. Pressure equalizing control Room Distribution Control 1.
Page 96 SiBE12-818 Control Specification Detail The followings are the examples of control which function in each mode by the electronic expansion valve control. Operation pattern : function × : not function When power is turned ON × × × × × ×...
Page 97 Control Specification SiBE12-818 3.11.1 Fully Closing with Power ON Initialize the electronic expansion valve when turning on the power, set the opening position and develop pressure equalizing. 3.11.2 Pressure Equalization Control When the compressor is stopped, open and close the electronic expansion valve and develop pressure equalization.
Page 98 SiBE12-818 Control Specification 3.11.7 Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature. If any is disconnected, open the electronic expansion valve according to the outdoor air temperature and the operating frequency and operate for a specified time, and then stop.
Page 99: Malfunctions
Control Specification SiBE12-818 3.12 Malfunctions 3.12.1 Sensor Malfunction Detection Sensor malfunction may occur either in the thermistor or current transformer (CT) system. Relating to Thermistor Malfunction 1. Outdoor heat exchanger thermistor 2. Discharge pipe thermistor 3. Fin thermistor 4. Gas pipe thermistor 5.
Page 100: Forced Operation Mode
SiBE12-818 Control Specification Detail I Judgment by power consumption When an output frequency is exceeds 40 Hz and the input current is less than specified value, the adjustment is made for insufficient gas. II Judgment by discharge pipe temperature When discharge pipe temperature is °C higher than target value and the electronic expansion value opening is 450 pulses (max.), the adjustment is made for insufficient gas.
Page 101: Wiring-Error Check
Control Specification SiBE12-818 3.14 Wiring-Error Check Outline The convenient Wiring Error Check function is designed for the microcomputer to correct wiring errors itself. If local wiring is unclear in the case of buried piping, for example, just press the wiring error check switch that is behind the right-hand panel of the outdoor unit.
Page 102 SiBE12-818 Control Specification Checking the Those data can be checked by looking at the service monitor LED indicators, when the wiring error checking is over, during forced operation, at the stop of the system. current setting The LED indicators stop flashing when the forced operation is over. data on the LED1…Room A wiring, LED2…Room B wiring microcomputer...
Page 103: Additional Function
Control Specification SiBE12-818 3.15 Additional Function 3.15.1 Connection Pipe Condensation Preventing Function This control is intended to adjust the electronic expansion valve opening so that the outdoor unit gas pipe temperature (GDN) be kept below 8°C. 3.15.2 Priority Room Setting Electronic expansion valves are controlled to provide the unit designated as the priority room with the capacity of other room units.
Page 104 SiBE12-818 Control Specification 3.15.5 Cooling / Heating Mode Lock Use the S15 connector to set the unit to only cool or heat. Setting to only heat (H): Short-circuit pins 1 and 3 of the connector <S15>. Setting to only cool (C): short-circuit pins 3 and 5 of the connector <S15>. The following specifications apply to the connector housing and pins.
Page 105 Control Specification SiBE12-818 Function and Control...
Page 106: Part 5 Operation Manual
SiBE12-818 Part 5 Operation Manual 1. System Configuration................96 1.1 Operation Instructions ................96 2. Instruction....................97 2.1 FTXG-E, CTXG-E, FTK(X)S-F, FDK(X)S-C(E), FLK(X)S-B Series..97 2.2 FTXS-G, FVXS-F Series ..............147 2.3 FHQ-B Series ..................189 Operation Manual...
Page 107: System Configuration
System Configuration SiBE12-818 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.
Page 108: Instruction
SiBE12-818 Instruction Instruction FTXG-E, CTXG-E, FTK(X)S-F, FDK(X)S-C(E), FLK(X)S-B Series 2.1.1 Manual Contents and Reference Page Wall Mounted Type Model Series FTXG25/35E FTK(X)S60/71F CTXG50E Read Before Operation Safety Precautions Names of Parts Preparation Before Operation ★ 1 Operation AUTO, DRY, COOL, HEAT, FAN Operation ★...
Page 109 • 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. • Do not insert fingers, poles, or other objects into the moving parts of the front panel or the outlet vent panel.
Page 110 SiBE12-818 Instruction • Do not place appliances which produce open fire in places exposed to the air flow from the unit or under the indoor unit. It may cause incomplete combustion or deformation of the unit due to the heat. •...
Page 111 Instruction SiBE12-818 2.1.3 Name of Parts FTXG 25/35 E, CTXG 50 E Names of parts Indoor Unit (With the panel closed) Operation Manual...
Page 112 SiBE12-818 Instruction Outdoor Unit Indoor Unit 1. Air filter • The operation mode refers to the following table. 2. Titanium Apatite Photocatalytic Tempera- Air flow Air-Purifying Filter: Mode ture setting rate • These filters are attached to the inside of F(C)TXG AUTO 25°C AUTO...
Page 113 Instruction SiBE12-818 Remote Controller < ARC433B41 > 1. Signal transmitter: 8. QUIET button: OUTDOOR UNIT QUIET operation • It sends signals to the indoor unit. 9. FAN setting button: 2. Display: • It selects the air flow rate setting. • It displays the current settings. 10.
Page 114 SiBE12-818 Instruction FTK(X)S 60/71 F Names of parts Indoor Unit Operation Manual...
Page 115 Instruction SiBE12-818 Outdoor Unit 50/60 class 71 class Indoor Unit 1. Air filter 14. HOME LEAVE lamp (red): • Lights up when you use HOME LEAVE 2. Titanium Apatite Photocatalytic Operation. Air-Purifying Filter 15. Indoor Unit ON/OFF switch: 3. Air inlet •...
Page 116 SiBE12-818 Instruction Remote Controller CANCEL TIMER < > ARC433B70, 71 1. Signal transmitter: 8. QUIET button: OUTDOOR UNIT QUIET • It sends signals to the indoor unit. operation 2. Display: 9. FAN setting button: • It displays the current settings. •...
Page 117 Instruction SiBE12-818 FDK(X)S 50/60 C, FDK(X)S 25/35 E Names of parts Indoor Unit Operation Manual...
Page 118 SiBE12-818 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 •...
Page 119 Instruction SiBE12-818 Remote Controller 〈 ARC433B69, B76 〉 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. QUIET button: OUTDOOR UNIT QUIET • It displays the current settings. operation (In this illustration, each section is shown with all its displays ON for the purpose of...
Page 120 SiBE12-818 Instruction FLK(X)S 25/35/50/60 B Names of parts Indoor Unit The indoor unit can be installed either to the ceiling or to a wall. The descriptions contained in this man- ual 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 panel How to open the front panel...
Page 121 Instruction SiBE12-818 Outdoor Unit Indoor Unit 1. Louvers (vertical blades): 13. Indoor unit ON/OFF switch: The louvers are inside of the air outlet. • Push this switch once to start operation. Push once again to stop it. 2. Air outlet •...
Page 122 SiBE12-818 Instruction Remote Controller HOME LEAVE ON/OFF TEMP POWERFUL MODE SWING QUIET < > ARC433B67, B68 1. Signal transmitter: 7. MODE selector button: • It selects the operation mode. • It sends signals to the indoor unit. (AUTO/DRY/COOL/HEAT/FAN) 2. Display: 8.
Page 123 Instruction SiBE12-818 2.1.4 Preparation Before Operation Preparation Before Operation To set the batteries Position correctly! 1. Slide the front cover to take it off. 2. Set two dry batteries (AAA). 3. Set the front cover as before. ATTENTION About batteries •...
Page 124 SiBE12-818 Instruction Preparation Before Operation To operate the remote controller • To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote controller, such as a curtain, the unit will not operate.
Page 125 Instruction SiBE12-818 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 increases or decreases the time display. 3.
Page 126 SiBE12-818 Instruction 2.1.5 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.
Page 127 Instruction SiBE12-818 To change the air flow rate setting 5. Press “FAN setting button”. DRY mode AUTO or COOL or HEAT or FAN mode Five levels of air flow rate setting from “ ” to “ ” plus “ ” “ ”...
Page 128 SiBE12-818 Instruction 2.1.6 Adjusting the Airflow Direction FTXG 25/35 E, CTXG 50 E 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 ”. •...
Page 129 Instruction SiBE12-818 To start COMFORT AIRFLOW operation 5. Press “COMFORT AIRFLOW button”. • The flap orientation will change, preventing air from blowing directly on the occupants of the room. • “ ” is displayed on the LCD. <COOL/DRY> The flap will go up. <HEAT>...
Page 130 SiBE12-818 Instruction FTK(X)S 60/70 F 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 and the flaps will begin to swing.
Page 131 Instruction SiBE12-818 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.
Page 132 SiBE12-818 Instruction FLK(X)S 25/35/50/60 B 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 and the flaps will begin to swing.
Page 133 Instruction SiBE12-818 To adjust the vertical blades (louvers) • When adjusting the louver, use a robust and stable stool and watch your steps carefully. Hold the knob and move the louvers. (You will find a knob on the left side and the right side blades.) Notes on flap and louvers angles.
Page 134 SiBE12-818 Instruction 2.1.7 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 before POWERFUL operation.
Page 135 Instruction SiBE12-818 2.1.8 OUTDOOR UNIT QUIET Operation OUTDOOR UNIT QUIET Operation OUTDOOR UNIT QUIET operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during night. To start OUTDOOR UNIT QUIET operation 1.
Page 136 SiBE12-818 Instruction 2.1.9 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”. • “ ”...
Page 137 Instruction SiBE12-818 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 favor- ite set temperature and air flow rate.
Page 138 SiBE12-818 Instruction 2.1.10 INTELLIGENT EYE Operation 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. To cancel the INTELLIGENT EYE operation 1, 2...
Page 139 Instruction SiBE12-818 “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”...
Page 140 SiBE12-818 Instruction 2.1.11 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 operation •...
Page 141 Instruction SiBE12-818 To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time. 1. Press “ON TIMER button”. is displayed. blinks. 2. Press “TIMER Setting button” until the time setting reaches the point you like.
Page 142 SiBE12-818 Instruction 2.1.12 Note for Multi System Note for Multi System 〈〈 〉〉 What is a “Multi System”? This system has one outdoor unit connected to multiple indoor units. Selecting the Operation Mode room Outdoor unit 1. With the Priority Room Setting room present but inactive or not present.
Page 143 Instruction SiBE12-818 Note for Multi System Priority Room Setting The Priority Room Setting requires initial programming during installation. Please consult your retailer or dealer for assistance. The room designated as the Priority Room takes priority in the following situations; 1. Operation Mode Priority. As the operation mode of the Priority Room takes precedence, the user can select a different operation mode from other rooms.
Page 144 SiBE12-818 Instruction 2.1.13 Care and Cleaning FTXG 25/35 E, CTXG 50 E CARE Care and Cleaning • Before cleaning, be sure to stop the operation and turn the breaker OFF. CAUTION • Always shut down the unit (and close the panel) before doing any work. Opening the panel during operation may cause the panel to fall off.
Page 145 Instruction SiBE12-818 Filters 1. Open the front panel. • Open the front panel by placing a finger on the panel tab on either side of the front panel and then secure it using the supporting plate on the right. 2. Pull out the air filters. •...
Page 146 SiBE12-818 Instruction 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.
Page 147 Instruction SiBE12-818 FTK(X)S 60/70 F CARE Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote controller 1. Wipe them with dry soft cloth. Front panel 1.
Page 148 SiBE12-818 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 tabs (3 tabs at top) Apatite Photocatalytic Air-Purifying Filter.
Page 149 Instruction SiBE12-818 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.
Page 150 SiBE12-818 Instruction FDK(X)S 50/60 C, FDK(X)S 25/35 E 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.
Page 151 • The suction grille is option. • Do not use water or air of 50˚C or higher for cleaning air filters and outside panels. • Ask your DAIKIN dealer how to clean it. Check Check that the base, stand and other fittings of the outdoor unit are not decayed or corroded.
Page 152 SiBE12-818 Instruction FLK(X)S 25/35/50/60 Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote controller 1. Wipe them with dry soft cloth. Front panel 1. Open the front panel. •...
Page 153 Instruction SiBE12-818 Filters 1. Open the front panel. 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. •...
Page 154 SiBE12-818 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. •...
Page 155 Instruction SiBE12-818 2.1.14 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. •...
Page 156 SiBE12-818 Instruction 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.) •...
Page 157 Instruction SiBE12-818 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.
Page 158: Ftxs-G, Fvxs-F Series
SiBE12-818 Instruction FTXS-G, FVXS-F Series 2.2.1 Manual Contents and Reference Page Wall Mounted Type Floor Standing Type Model Series FTXS20-50G FVXS25-50F Read Before Operation Safety Precautions Names of Parts Preparation Before Operation ★ 1 Operation AUTO, DRY, COOL, HEAT, FAN Operation ★...
Page 159 • 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.
Page 160 SiBE12-818 Instruction • Do not block air inlets nor outlets. Impaired airflow may result in insufficient performance or trouble. • Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not remove the fan guard.
Page 161 Instruction SiBE12-818 2.2.3 Names of Parts FTXS 20/25/35/42/50 G Names of parts Indoor Unit Operation Manual...
Page 162 SiBE12-818 Instruction Outdoor Unit 20/25/35/42 class 50 class Indoor Unit 1. Air filter 12. Indoor Unit ON/OFF switch: • Push this switch once to start operation. 2. Titanium Apatite Photocatalytic Push once again to stop it. Air-Purifying Filter: • The operation mode refers to the following •...
Page 163 Instruction SiBE12-818 Remote Controller <Open the front cover> <ARC452A3> 1. Signal transmitter: 11. SWING button: • It sends signals to the indoor unit. • Vertical blades (louvers) 2. Display: 12. COMFORT/SENSOR button: • It displays the current settings. • COMFORT AIRFLOW and INTELLIGENT (In this illustration, each section is shown EYE operation with all its displays ON for the purpose of...
Page 164 SiBE12-818 Instruction FVXS 25/35/50 F Names of parts Indoor Unit Opening the Front Panel How to open the front panel: Air outlet selection switch • This setting blows air from upper outlet only. This setting automatically decides a blow • pattern depending on mode and conditions.
Page 165 Instruction SiBE12-818 Outdoor Unit 25/35 class 50 class Indoor Unit • The operation mode refers to the following 1. Titanium Apatite Photocatalytic Air-Purifying Filter: table. • These filters are attached to the inside of Temperature Airflow Model Mode the air filters. setting rate 2.
Page 166 SiBE12-818 Instruction Remote Controller <Open the lid> <ARC452A1> 1. Signal transmitter: 9. ECONO button: • It sends signals to the indoor unit. ECONO operation 10. SWING button: 2. Display: • Adjusting the Airflow Direction • It displays the current settings. (In this illustration, each section is shown 11.
Page 167 Instruction SiBE12-818 2.2.4 Preparation Before Operation Preparation Before Operation To set the batteries 1. Slide the front cover to take it off. Position + and – correctly! 2. Set two dry batteries (LR03·AAA). 3. Set the front cover as before. To operate the remote controller •...
Page 168 SiBE12-818 Instruction Preparation Before Operation To set the clock 1. Press “CLOCK button”. is displayed. blinks. 2. Press “SELECT button” to set the current day of the week. 3. Press “CLOCK button”. blinks. 4. Press “SELECT button” to set the clock to the present time. Holding down “...
Page 169 Instruction SiBE12-818 Turn the breaker ON • Turning ON the breaker opens once and closes the flaps. (This is a normal procedure.) Checks on Remote Controller Settings • This remote controller is common to the heat pump model and cooling only model. Use the dipswitches on the remote controller to set the heat pump model or cooling only model.
Page 170 SiBE12-818 Instruction 2.2.5 AUTO • DRY • COOL • HEAT • FAN Operation 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.
Page 171 Instruction SiBE12-818 To change the airflow rate setting 5. Press “FAN setting button”. DRY mode AUTO or COOL or HEAT or FAN mode Five levels of airflow rate setting from “ ” to “ ” plus “ ” “ ” are available. The airflow rate setting is not variable.
Page 172 SiBE12-818 Instruction 2.2.6 Adjusting the Airflow Direction FTXS 20/25/35/42/50 G Adjusting the Airflow Direction You can adjust the airflow 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.
Page 173 Instruction SiBE12-818 To start 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.
Page 174 SiBE12-818 Instruction FVXS 25/35/50 F Adjusting the Airflow Direction You can adjust the airflow direction to increase your comfort. To adjust the horizontal blade (flap) 1. Press “SWING button ”. • “ ” is displayed on the LCD and the flaps will begin to swing.
Page 175 Instruction SiBE12-818 Airflow selection • Make airflow selection according to what suits you. When setting the airflow selection switch to • Air conditioner automatically decides the appropriate blowing pattern depending on the operating mode/situation. Operating mode Situation Blowing pattern • When the room has become fully •...
Page 176 SiBE12-818 Instruction 2.2.7 COMFORT AIRFLOW and INTELLIGENT EYE Operation COMFORT AIRFLOW and INTELLIGENT EYE Operation The INTELLIGENT EYE incorporates infrared sensors to detect the presence of people in the conditioned room. When these sensors detect people, the louvers will adjust the airflow direction to an area where people are not present.
Page 177 Instruction SiBE12-818 Notes on “COMFORT AIRFLOW Operation” • The flap position will change, preventing air from blowing directly on the occupants of the room. • POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time. • The volume of air will be set to AUTO. If the upward and downward airflow direction is selected, the COMFORT AIRFLOW function will be canceled.
Page 178 SiBE12-818 Instruction COMFORT AIRFLOW and INTELLIGENT EYE Operation Notes on “INTELLIGENT EYE Operation” • While the air conditioner is in INTELLIGENT EYE operation, the louvers will adjust the airflow direction if there are people in the sensing areas of the INTELLIGENT EYE so that the leftward or rightward airflow will not be directed to the people.
Page 179 Instruction SiBE12-818 2.2.8 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 20minutes. Then the system automatically operates again with the previous settings which were used before POWERFUL operation.
Page 180 SiBE12-818 Instruction 2.2.9 OUTDOOR UNIT QUIET Operation OUTDOOR UNIT QUIET Operation OUTDOOR UNIT QUIET operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during night. To start OUTDOOR UNIT QUIET operation 1.
Page 181 Instruction SiBE12-818 2.2.10 ECONO Operation ECONO Operation ECONO operation is a function which enables efficient operation by limiting the maximum power consumption value. This function is useful for cases in which attention should be paid to ensure a circuit breaker will not trip when the product runs alongside other appliances.
Page 182 SiBE12-818 Instruction 2.2.11 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 operation •...
Page 183 Instruction SiBE12-818 To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time. 1. Press “ON TIMER button”. is displayed. blinks. 2. Press “SELECT button” until the time setting reaches the point you like.
Page 184 SiBE12-818 Instruction 2.2.12 WEEKLY TIMER Operation WEEKLY TIMER Operation Up to 4 timer settings can be saved for each day of the week. It is convenient if the WEEKLY TIMER is set according to the family’s life style. Using in these cases of WEEKLY TIMER An example of WEEKLY TIMER settings is shown below.
Page 185 Instruction SiBE12-818 To use WEEKLY TIMER operation • Make sure the day of the week and time are set. If not, set the day of the week and time. Program 1 Program 2 Program 3 Program 4 [Monday] 25˚C 27˚C 6:00 8:30 17:30...
Page 186 SiBE12-818 Instruction WEEKLY TIMER Operation 8. Press “SELECT button” to select the desired temperature. • The temperature can be set between 10˚C and 32˚C. Cooling: The unit operates at 18˚C even if it is set at 10 to 17˚C. Heating: The unit operates at 30˚C even if it is set at 31 to 32˚C.
Page 187 Instruction SiBE12-818 Using copy mode • A reservation made once can be easily copied and the same settings used for another day of the week. Program 1 Program 2 Program 3 Program 4 [Monday] 25˚C 27˚C 6:00 8:30 17:30 22:00 COPY Program 1 Program 2 Program 3...
Page 188 SiBE12-818 Instruction WEEKLY TIMER Operation Confirming a reservation • The reservation can be confirmed. 1. Press “ button”. • The day of the week and the reservation number of the current day will be displayed. 2. Press “SELECT button” to select the day of the week and the reservation number to be confirmed.
Page 189 Instruction SiBE12-818 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. room room Outdoor unit room room Selecting the operation mode Living Living room room...
Page 190 SiBE12-818 Instruction Note for Multi System Priority Room Setting The Priority Room Setting requires initial programming during installation. Please consult your retailer or dealer for assistance. The room designated as the Priority Room takes priority in the following situations; 1. Operation mode Priority. As the operation mode of the Priority Room takes precedence, the user can select a different operation mode from other rooms.
Page 191 Instruction SiBE12-818 2.2.14 Care and Cleaning FTXS 20/25/35/42/50 G CARE Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote controller 1. Wipe them with dry soft cloth. Front panel 1.
Page 192 SiBE12-818 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. •...
Page 193 Instruction SiBE12-818 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.
Page 194 SiBE12-818 Instruction FVXS 25/35/50 F CARE Care and Cleaning Before cleaning, be sure to stop the operation and CAUTION turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote controller 1. Wipe them with dry soft cloth. Front panel 1.
Page 195 Instruction SiBE12-818 Filters 1. Open the front panel. 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 Titanium Apatite Photocatalytic Air-Purifying Filter. •...
Page 196 SiBE12-818 Instruction 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.
Page 197 Instruction SiBE12-818 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.
Page 198 SiBE12-818 Instruction 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.) •...
Page 199 Instruction SiBE12-818 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.
Page 200: Fhq-B Series
SiBE12-818 Instruction FHQ-B Series Operation Manual...
Page 201 If your installation has a customized control system, 1. WHAT TO DO BEFORE OPERATION ask your Daikin dealer for the operation that corre- sponds to your system. This operation manual is for the following systems • Heat pump type with standard control.
Page 202 Contact your Daikin Dealer and verify which Continued operation under such circumstances outdoor unit you have. may result in a failure, electric shock, and fire.
Page 203 Instruction SiBE12-818 Be sure to install an earth leakage breaker. The appliance is not intended for use by young Failure to install an earth leakage breaker may children or infirm persons without supervision. result in electric shocks, or fire. Young children should be supervised to Consult the dealer if the air conditioner sub- ensure that they do not play with the appliance.
Page 204: Operation Range
SiBE12-818 Instruction HEATING 3. OPERATION RANGE INDOOR OUTDOOR OUTDOOR If the temperature or the humidity is beyond the fol- TEMPERA- UNIT TEMPERATURE lowing conditions, safety devices may work and the TURE air conditioner may not operate, or sometimes, – 9 to 21 water may drop from the indoor unit.
Page 205 Instruction SiBE12-818 Regarding wiring DISPLAY “ ” “ ” “ ” “ ” • All wiring must be performed by an authorized (VENTILATION/AIR CLEANING) electrician. This display shows that the total heat To do wiring, ask your dealer. Never do it by your- exchange and the air cleaning unit are in self.
Page 206 Refer to figure 1 on page [1] • Operating procedure varies with heat pump type Regarding outside air temperature and heat- and cooling only type. Contact your Daikin dealer ing capacity to confirm your system type. • The heating capacity of the air conditioner •...
Page 207 • The movable limit of the flap is changeable. Con- • Programming the start time ( tact your Daikin dealer for details..The system starts Press the AIR FLOW DIRECTION ADJUST operating after the set time has elapsed.
Page 208 SiBE12-818 Instruction • Turn off the main power supply switch when it is PROGRAMMING TIME not used for long periods of time. When the main power switch is turned on, some watts of electricity Press the PROGRAMMING TIME button and is being used even if the system is not operating.
Page 209 Instruction SiBE12-818 B)Washing with water Fig. 3 When the air filter is very dirty, use soft brush and neutral detergent. Remove water and dry in the shade. NOTE • Do not wash the air conditioner with hot water of more than 50˚C, as doing so may result in discol- Fig.
Page 210 SiBE12-818 Instruction • When very grimy 9. NOT MALFUNCTION OF THE AIR Directly apply the type of detergent used for CONDITIONER cleaning ventilation fans or ovens, wait 10 min- utes, and then rinse with water. The following symptoms do not indicate air condi- tioner malfunction NOTE •...
Page 211 Refer to page 6. inated, the temperature distribution inside a room becomes uneven. It is necessary to clean the inside of the indoor unit. Ask your Daikin dealer for details on cleaning the unit. This operation requires a qualified service person.
Page 212 • If the doors or the windows are open. MALFUNCTION CODE Shut doors or windows to prevent wind from Measure: Notify your Daikin dealer and inform coming in. him/her of the display. • If direct sunlight enters the room (when cool- ing).
Page 213 Instruction SiBE12-818 Operation Manual...
Page 214: Part 6 Service Diagnosis
SiBE12-818 Part 6 Service Diagnosis 1. Caution for Diagnosis................204 1.1 Troubleshooting with Operation Lamp ..........204 2. Problem Symptoms and Measures .............206 3. Service Check Function ..............207 3.1 Check Method 1 ...................207 3.2 Check Method 2 ...................209 4. Code Indication on the Remote Controller ..........211 4.1 Error Codes and Description of Fault ...........211 5.
Page 215: Caution For Diagnosis
Caution for Diagnosis SiBE12-818 1. Caution for Diagnosis Troubleshooting with Operation Lamp The operation lamp flashes when any of the following errors is detected. 1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions, disabling equipment operation.
Page 216 SiBE12-818 Caution for Diagnosis In case of FLK(X)S 25/35/50/60 B Series OPERATION lamp (green) (Q0341) Caution: Operation stops suddenly. (Operation lamp blinks.) Cause of above trouble could be "Operation mode conflict". 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.
Page 217: Problem Symptoms And Measures
Problem Symptoms and Measures SiBE12-818 Problem Symptoms and Measures Problem Symptom Check Item Details of Measure Page to be referred None of the units operates. Check the power supply. Check to make sure that the rated voltage is — supplied. Check the type of the indoor units.
Page 218: Service Check Function
SiBE12-818 Service Check Function Service Check Function Check Method 1 The temperature display sections on the main unit indicate corresponding codes. ARC433 Series 1. When the timer cancel button is held down for 5 seconds, a “00” indication flashes on the temperature display section.
Page 219 Service Check Function SiBE12-818 ARC452A Series 1. When the timer cancel button is held down for 5 seconds, a “00” indication flashes on the temperature display section. <Open the lid> TIMER CANCEL button It cancels the timer setting. < ARC452A2 > (R6757) 2.
Page 220: Check Method 2
SiBE12-818 Service Check Function Check Method 2 1. Enter the diagnosis mode. Press the 3 buttons (TEMP▲,TEMP▼, MODE) simultaneously. (R4272) The digit of the number of tens blinks. ★ Try again from the start when the digit does not blink. (R4273) 2.
Page 221 Service Check Function SiBE12-818 5. Press the TEMP button. Press TEMP▲ or TEMP▼ and change the digit until you hear the sound of “beep”. (R4277) 6. Diagnose by the sound. ★ “pi” : The both numbers of tens and units do not accord with the error code. ★...
Page 222: Code Indication On The Remote Controller
SiBE12-818 Code Indication on the Remote Controller 4. Code Indication on the Remote Controller Error Codes and Description of Fault Code Indication Description of Problem System Normal Insufficient gas Low-voltage detection or over-voltage detection Signal transmission error (between indoor and outdoor units) Signal transmission error (on outdoor unit PCB) Unspecified voltage (between indoor and outdoor units) Anti-icing function in other rooms...
Page 223: Troubleshooting
Troubleshooting SiBE12-818 5. Troubleshooting Indoor Units - : Not used for troubleshooting ∗ : Varies depending on the cases. Indication on the Description of the Fault Details of fault remote controller (Refer to the indicated page.) Indoor unit in normal condition (Conduct a diagnosis of the outdoor unit.) —...
Page 224: Outdoor Units
SiBE12-818 Troubleshooting Outdoor Units : ON, : OFF, : Blinks Green : Flashes when in normal condition Red : OFF in normal condition - : Not used for troubleshooting ∗ : Varies depending on the cases. Outdoor Unit LED Indication Indication on Description of The Fault the remote...
Page 225: Indoor Unit Pcb Abnormality
Troubleshooting SiBE12-818 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 Faulty indoor unit PCB Causes Faulty connector connection Troubleshooting...
Page 226: Freeze-Up Protection Control Or High Pressure Control
SiBE12-818 Troubleshooting 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.
Page 227 Troubleshooting SiBE12-818 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.256 Is there any short-circuit? Provide sufficient air passage. Check the intake air filter. Is it very dirty? Clean the air filter.
Page 228: Fan Motor Or Related Abnormality
SiBE12-818 Troubleshooting Fan Motor or Related Abnormality 5.5.1 AC Motor Remote Controller Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor operation. Malfunction Detection Malfunction When the detected rotation speed does not reach the demanded rotation speed of the target tap, and is less than 50% of the maximum fan motor rotation speed.
Page 229 Troubleshooting SiBE12-818 5.5.2 DC Motor Remote Controller Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor operation. Malfunction Detection Malfunction When the detected rotation speed does not reach the demanded rotation speed of the target tap, and is less than 50% of the maximum fan motor rotation speed.
Page 230 SiBE12-818 Troubleshooting 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 and rotate fan by hand. Refer to P.253 Does fan rotate Replace fan motor. Check No.02 smoothly? Refer to P.253...
Page 231: Thermistor Or Related Abnormality (Indoor Unit)
Troubleshooting SiBE12-818 Thermistor or Related Abnormality (Indoor Unit) 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 ∗...
Page 232: Front Panel Open / Close Fault
SiBE12-818 Troubleshooting Front Panel Open / Close Fault Remote Controller Display Method of Malfunction Detection Malfunction The system will be shut down when the error occurs twice. Decision Conditions Supposed Malfunction of the reduction motor Causes Malfunction or deterioration of the front panel mechanism Malfunction of the limit switch Troubleshooting Be sure to turn off power switch before connect or disconnect connector,...
Page 233: Signal Transmission Error (Between Indoor And Outdoor Unit)
Troubleshooting SiBE12-818 Signal Transmission Error (between Indoor and Outdoor Unit) Remote Controller Display Method of The data received from the outdoor unit in indoor unit-outdoor unit signal transmission is checked whether it is normal. Malfunction Detection Malfunction When the data sent from the outdoor unit cannot be received normally, or when the content of the data is abnormal.
Page 234: Unspecified Voltage (Between Indoor And Outdoor Units)
SiBE12-818 Troubleshooting Unspecified Voltage (between Indoor and Outdoor Units) Remote Controller Display Method of The supply power is detected for its requirements (different from pair type and multi type) by the indoor / outdoor transmission signal. Malfunction Detection Malfunction The pair type and multi type are interconnected. Decision Conditions Supposed...
Page 235: Freeze-Up Protection Control
Troubleshooting SiBE12-818 5.10 Freeze-up Protection Control Remote Controller Display Outdoor Unit LED Display Method of Indoor unit icing, during cooling operation, is detected by checking the temperatures sensed by the indoor unit heat exchanger thermistor and room temperature thermistor that are located in a Malfunction shut-down room.
Page 236 SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.04 Check the wiring and piping. Refer to P.254 Wiring or piping out Check No.06 Activate the wiring error check of spec? mode.
Page 237: Outdoor Unit Pcb Abnormality
Troubleshooting SiBE12-818 5.11 Outdoor Unit PCB Abnormality Remote Controller Display Outdoor Unit LED Display Method of Detect within the programme of the microcomputer that the programme is in normal running order. Malfunction Detection Malfunction When the programme of the microcomputer is in abnormal running order. Decision Conditions Supposed...
Page 238: Ol Activation (Compressor Overload)
SiBE12-818 Troubleshooting 5.12 OL Activation (Compressor Overload) Remote Controller Display Outdoor Unit LED Display Method of A compressor overload is detected through compressor OL. Malfunction Detection Malfunction If the compressor OL is activated twice, the system will be shut down. The error counter will reset itself if this or any other error does not occur during the following Decision 60-minute compressor running time (total time).
Page 239: Compressor Lock
Troubleshooting SiBE12-818 5.13 Compressor Lock Remote Controller Display Outdoor Unit LED Display Method of A compressor lock is detected by checking the compressor running condition through the position detection circuit. Malfunction Detection Malfunction Judging from current waveform generated when high-frequency voltage is applied to the compressor.
Page 240: Dc Fan Lock
SiBE12-818 Troubleshooting 5.14 DC Fan Lock Remote Controller Display Outdoor Unit LED Display Method of A fan motor line error is detected by checking the high-voltage fan motor rpm being detected by the Hall IC. Malfunction Detection Malfunction The fan does not start in 30 seconds even when the fan motor is running. The system will be shut down if the error occurs 16 times.
Page 241: Input Over Current Detection
Troubleshooting SiBE12-818 5.15 Input Over Current Detection Remote Controller Display Outdoor Unit LED Display Method of Malfunction is detected by checking the input current value. Malfunction Detection Malfunction The following condition continues for 2.5 seconds. Input current ≥ 20A (typical value) Decision The compressor halts if the error occurs, and restarts automatically after 3 minutes stand-by.
Page 242 SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.07 ∗ An input over-current may result from wrong internal wiring. If the wires have been disconnected and reconnected for part replacement, for example, and the system is interrupted by an input over-current, Refer to P.257 check the wires again.
Page 243: Discharge Pipe Temperature Control
Troubleshooting SiBE12-818 5.16 Discharge Pipe Temperature Control Remote Controller Display Outdoor Unit LED Display Method of The discharge pipe temperature control (stop, frequency drooping, etc.) is checked with the temperature being detected by the discharge pipe thermistor. Malfunction Detection Malfunction 2YC45 If the temperature being detected by the discharge pipe thermistor rises above 120°C, the Decision...
Page 244: High Pressure Control In Cooling
SiBE12-818 Troubleshooting 5.17 High Pressure Control in Cooling Remote Controller Display Outdoor Unit LED Display Method of High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the temperature being sensed by the heat exchanger thermistor exceeds the limit. Malfunction Detection Malfunction...
Page 245 Troubleshooting SiBE12-818 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.04 Check the installation space. Refer to P.254 Check No.06 Check No. 07 Abnormal Change the air outlet grille Check the installation Refer to P.256 condition.
Page 246: Compressor Sensor System Abnormality
SiBE12-818 Troubleshooting 5.18 Compressor Sensor System Abnormality Remote Controller Display Outdoor Unit LED Display Method of Fault condition is identified by the supply voltage and the DC voltage which is detected before the compressor startup. Malfunction Fault condition is identified by compressor current which is detected right after the Detection compressor startup.
Page 247 Troubleshooting SiBE12-818 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Turn off the power Reactor connection check Connection OK? Connect properly. Compressor connection check Connection OK? Connect properly. Disconnect the reactor from the outdoor unit PCB and measure the resistance Reactor check...
Page 248: Position Sensor Abnormality
SiBE12-818 Troubleshooting 5.19 Position Sensor Abnormality Remote Controller Display Outdoor Unit LED Display Method of A compressor startup failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Detection Malfunction The compressor fails to start in about 15 seconds after the compressor run command signal is sent.
Page 249: Ct Or Related Abnormality
Troubleshooting SiBE12-818 5.20 CT or Related Abnormality Remote Controller Display Outdoor Unit LED Display Method of A CT or related error is detected by checking the compressor running frequency and CT- detected input current. Malfunction Detection Malfunction The compressor running frequency is below 32 Hz and the CT input is below 0.1 V. (The input current is also below 1.25 A.) Decision If this error repeats 4 times, the system will be shut down.
Page 250: Sibe12
SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.12 Turn off the power and turn it on Refer to P.260 again. Get the system started. ∗...
Page 251: Thermistor Or Related Abnormality (Outdoor Unit)
Troubleshooting SiBE12-818 5.21 Thermistor or Related Abnormality (Outdoor Unit) P4 , J3 , J6 , J8 , J9 , H9 Remote Controller Display Outdoor Unit LED Display Method of This type of error is detected by checking the thermistor input voltage to the microcomputer. [A thermistor error is detected by checking the temperature being detected by each thermistor.] Malfunction Detection...
Page 252 SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.06 Turn on the power again. Refer to P.256 Error displayed Reconnect. again on remote controller? Connector or thermistor Reconnect.
Page 253: Electrical Box Temperature Rise
Troubleshooting SiBE12-818 5.22 Electrical Box Temperature Rise Remote Controller Display Outdoor Unit LED Display Method of An electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off. Malfunction Detection Malfunction With the compressor off, the radiation fin temperature is above 100°C for over 30 seconds. The error is cleared when the temperature drops below 70°C.
Page 254 SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.07 WARNING Turn off the power and turn it on Refer to P.257 again. To cool down the electricals, the outdoor unit fan gets started when the radiation fin temperature rises above 100˚C and stops itself...
Page 255: Radiation Fin Temperature Rise
Troubleshooting SiBE12-818 5.23 Radiation Fin Temperature Rise Remote Controller Display Outdoor Unit LED Display Method of A radiation fin temperature rise is detected by checking the radiation fin temperature being detected by the fin thermistor with the compressor on. Malfunction Detection Malfunction The radiation fin temperature with the compressor on is above 105°C.
Page 256 SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.07 Turn off the power and turn it on Refer to P.257 again to get the system started. Check No.09 Refer to P.258 Error displayed again?
Page 257: Output Over Current Detection
Troubleshooting SiBE12-818 5.24 Output Over Current Detection Remote Controller Display Outdoor Unit LED Display Method of An output over-current is detected by checking the current that flows in the inverter DC section. Malfunction Detection Malfunction A position signal error occurs while the compressor is running. A speed error occurs while the compressor is running.
Page 258 SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.07 ∗ An input over-current may result from wrong internal wiring. If the wires have been disconnected and Refer to P.257 reconnected for part replacement, for example, and the system is interrupted by an input over-current, check the wires again.
Page 259: Insufficient Gas
Troubleshooting SiBE12-818 5.25 Insufficient Gas Remote Controller Display Outdoor Unit LED Display Method of Gas shortage detection I: Gas shortage is detected by checking the input current value and the compressor running Malfunction frequency. If the gas is short, the input current is smaller than the normal value. Detection Gas shortage detection II: Gas shortage is detected by checking the discharge temperature and the opening of the...
Page 260 SiBE12-818 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.04 Refer to P.254 Any thermistor Replace in position. disconnected? * Discharge pipe thermistor * Indoor / outdoor unit heat exchanger thermistor * Room temperature thermistor Check No.06 * Outdoor air thermistor...
Page 261: Low-Voltage Detection Or Over-Voltage Detection
Troubleshooting SiBE12-818 5.26 Low-voltage Detection or Over-voltage Detection Remote Controller Display Outdoor Unit LED Display Method of An abnormal voltage rise or drop is detected by checking the detection circuit or DC voltage detection circuit. Malfunction Detection Malfunction An over-voltage signal is fed from the over-voltage detection circuit to the microcomputer, or the voltage being detected by the DC voltage detection circuit is judged to be below 150 V Decision for 0.1 second.
Page 262: Signal Transmission Error (On Outdoor Unit Pcb)
SiBE12-818 Troubleshooting 5.27 Signal Transmission Error (on Outdoor Unit PCB) Remote Controller Display Outdoor Unit LED Display Method of Communication error between microcomputer mounted on the main PCB and PM1. Malfunction Detection Malfunction When the data sent from the PM1 can not be received successively for 9 sec. The abnormality is determined if the above fault conditions occurs once Decision Fault counter is reset when the data from the PM1 can be successfully received.
Page 263: Anti-Icing Function In Other Rooms / Unspecified Voltage (Between Indoor And Outdoor Units)
Troubleshooting SiBE12-818 5.28 Anti-icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units) UA , UH Remote Controller Display Outdoor Unit LED Display Method of A wrong connection is detected by checking the combination of indoor and outdoor units on the microcomputer.
Page 264: Check
SiBE12-818 Check 6. Check How to Check 6.1.1 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.
Page 265: Electronic Expansion Valve Check
Check SiBE12-818 6.1.3 Electronic Expansion Valve Check Check No.04 Conduct the followings to check the electronic expansion valve (EV). 1. Check to see if the EV connector is correctly inserted in the PCB. Compare the EV unit and the connector number. 2.
Page 266 SiBE12-818 Check 6.1.4 Four Way Valve Performance Check Check No.05 Turn off the power and turn it on again. ∗ Four way valve coil Start the heating-mode run. Cooling / dry : No continuity Heating : Continuity voltage at DC 220- Replace the outdoor unit 240 V with compressor PCB.
Page 267: Thermistor Resistance Check
Check SiBE12-818 6.1.5 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.
Page 268: Installation Condition Check
SiBE12-818 Check 6.1.6 Installation Condition Check Check No.07 Installation condition check Check the Abnormal allowable dimensions Change the position of the air of the air suction and discharge grille or the discharge area. installation location. Normal Does the discharged air from other outdoor unit cause an Change the position of the air increase of the suction...
Page 269: Discharge Pressure Check
Check SiBE12-818 6.1.7 Discharge Pressure Check Check No.08 Discharge pressure check Replace compessor. High Is the stop valve open? Open the stop valve. Is the connection pipe Replace the pipe installed at deformed? the site. Dirty Are the heat exchanger Clean.
Page 270 SiBE12-818 Check 6.1.9 Power Supply Waveforms Check Check No.10 Measure the power supply waveform between pins 1 and 2 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]...
Page 271: Power Transistor Check
Check SiBE12-818 6.1.11 Capacitor Voltage Check Check No.12 Before this checking, be sure to check the main circuit for short-circuit. Checking the capacitor voltage With the circuit breaker still on, measure the voltage according to the drawing of the model in question.
Page 272: Main Circuit Electrolytic Capacitor Check
SiBE12-818 Check 6.1.13 Main Circuit Electrolytic Capacitor Check Check No.14 Checking the main circuit electrolytic capacitor Never touch any live parts for at least 10 minutes after turning off the circuit breaker. If unavoidably necessary to touch a live part, make sure there is no DC voltage using the tester.
Page 273 Check SiBE12-818 6.1.15 Hall IC Check Check No.16 1. Check the connector connection. 2. With the power ON, operation OFF, and the connector connected, check the following. ∗ Output voltage of about 5 V between pins 1 and 3. ∗ Generation of 3 pulses between pins 2 and 3 when the fan motor is operating.
Page 274: Part 7 Removal Procedure
SiBE12-818 Part 7 Removal Procedure 1. Outdoor Unit..................264 1.1 Removal of Outer Panels ..............264 1.2 Removal of the Electrical Box ..............280 1.3 Removal of PCB...................286 1.4 Removal of Fan Motor................290 1.5 Removal of Coils / Thermistors ............291 1.6 Removal of Sound Blanket..............297 1.7 Removal of Compressor...............300 Removal Procedure...
Page 275: Outdoor Unit
Outdoor Unit SiBE12-818 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 External appearance from front side. (R6368) 1. Removing the suction The hooks are secured in grille.
Page 276 SiBE12-818 Outdoor Unit Step Procedure Points Next, slide the grille downward to undo the 3 Hooks top hooks. (R6371) Remove the suction grille. (R6372) 2. Removing the panel. Remove the 4 screws on the back and 1 screw on the left side panel.
Page 277 Outdoor Unit SiBE12-818 Step Procedure Points Remove the 2 screws on the front and 1 screw on the right side panel. (R6374) Lift the top panel and remove it. (R6375) 3. Removing the right side panel. Remove the 5 screws. (R6376) Removal Procedure...
Page 278 SiBE12-818 Outdoor Unit Step Procedure Points Slide the panel downward to undo 2 hooks on the back side. (R6377) Hooks (R6378) Hooks Hook Holes Hook Holes (R6379) Removal Procedure...
Page 279 Outdoor Unit SiBE12-818 Step Procedure Points Remove the right side panel. (R6380) 4. Removing the front panel Front Panel (2) Remove the 2 screws. Front Panel (1) (R6381) Removal Procedure...
Page 280 SiBE12-818 Outdoor Unit Step Procedure Points Slide the panel downward to undo the hook. (R6382) (R6383) Remove the front panel (2). (R6384) Removal Procedure...
Page 281 Outdoor Unit SiBE12-818 Step Procedure Points 5. Removing the front panel Remove the discharge grille propeller fan first to remove the Front front panel (1). Remove the 4 screws Panel (1) on the discharge grille. Discharge grille (R6385) Pull the bottom of the discharge grille toward yourself.
Page 282 SiBE12-818 Outdoor Unit Step Procedure Points Next, slide the grille downward to undo the 2 hooks at the top. (R6387) Hooks (R6388) Remove the discharge grille. (R6389) Remove the propeller Fan fixing nut : M8 fan fixing nut. (R6390) Removal Procedure...
Page 283 Outdoor Unit SiBE12-818 Step Procedure Points Remove the 2 fixing screws on the partition plate. (R6391) Remove the screw at bottom left of the front. (R6392) Remove the screw at bottom of the left side. (R6393) Removal Procedure...
Page 284 SiBE12-818 Outdoor Unit Step Procedure Points Remove the screw at bottom of the back side. (R6394) The front panel (1) is provided with a hook on its front. Lift the front panel off position to remove it. Hook (R6395) Removal Procedure...
Page 285 Outdoor Unit SiBE12-818 Step Procedure Points Remove the front panel (1). The back is a little complicated in shape. Be sure to detach carefully. (R6396) 6. Removing the rear panel Remove the fixing screw on the partition plate. (R6397) Removal Procedure...
Page 286 SiBE12-818 Outdoor Unit Step Procedure Points Slide the panel leftward to undo the hook, and remove the partition plate. (R6398) Remove the 5 screws. (R6399) Removal Procedure...
Page 287 Outdoor Unit SiBE12-818 Step Procedure Points Remove the wire fixing plate (upper). (R6400) Remove the 3 screws. (R6401) Remove the wire fixing plate (lower). (R6402) Removal Procedure...
Page 288 SiBE12-818 Outdoor Unit Step Procedure Points Undo the holder of the The holder is secured in the thermistor. clearances of the heat exchanger fins. (R6403) Groove (R6404) Remove the 3 fixing screws on the partition plate. (R6405) Removal Procedure...
Page 289 Outdoor Unit SiBE12-818 Step Procedure Points Remove the fixing screw from the bottom frame. (R6406) Remove the fixing screw from the shut-off valve mounting plate. (R6407) Lift the panel upward to undo the 2 hooks and remove it. Hooks Hooks (R6408) Removal Procedure...
Page 290 SiBE12-818 Outdoor Unit Step Procedure Points Remove the rear panel. (R6409) Removal Procedure...
Page 291: Removal Of The Electrical Box
Outdoor Unit SiBE12-818 Removal of the Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the fixing screw from the shut-off valve mounting plate. (R6410) Remove the fixing screw on the partition...
Page 292 SiBE12-818 Outdoor Unit Step Procedure Points Disconnect the fan motor connector S70. [S70] (R6413) Release the fan motor wire harness. (R6414) Disconnect the Detach the clamp. motorized valve Just pull the push-mount [S80] connector S80. type out of position. Clamp (R6415) Disconnect the 5 A : Connector S20(white),...
Page 293 Outdoor Unit SiBE12-818 Step Procedure Points Disconnect the liquid pipe thermistor [S93] connector S93. Clamp (R6417) Disconnect the gas pipe thermistor connector [S92] S92. (R6418) 10 Disconnect the discharge pipe [S90] thermistor connector S90. (R6419) Removal Procedure...
Page 294 SiBE12-818 Outdoor Unit Step Procedure Points 11 The wire harness is hooked on the bottom of the electrical box. Unhook it and remove the clamp. Clamp (R6420) 12 Disconnect the OL [S40] connector S40. (R6421) 13 Remove the OL wire harness and the compressor wire harness together from...
Page 295 Outdoor Unit SiBE12-818 Step Procedure Points 14 Use long-nose pliers or Detach the clamp. the like to pull out the Just pull the push-mount clamp. type out of position. Clamp (R6423) 15 Disconnect the relay connector of the compressor. (R6469) 16 First, slide the box leftward to undo the hook on the right side of...
Page 296 SiBE12-818 Outdoor Unit Step Procedure Points 17 Lift up the electrical box to remove it. (R6425) Removal Procedure...
Page 297: Removal Of Pcb
Outdoor Unit SiBE12-818 Removal of 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 Open the cover of the Undo the 4 hooks. The hooks are marked with ▼...
Page 298 SiBE12-818 Outdoor Unit Step Procedure Points Disconnect the Connectors & S71: connectors one by one For inverter PCB starting from your side. Connectors & S32: For SPM PCB Connectors & S101: For display PCB Connector S10: For relay Connectors H1/H2: For DB (diode bridge), power wire harnesses (red) and...
Page 299 Outdoor Unit SiBE12-818 Step Procedure Points 3. Removing the display PCB. Disconnect the control PCB connectors S52, S102 (R6435) Slightly lift the top hooks to detach. (R6436) Undo the bottom hook to remove the display PCB. (R6437) Removal Procedure...
Page 300 SiBE12-818 Outdoor Unit Step Procedure Points 4. Removing the servicing cover off the terminal block assembly. Remove the screw. (R6438) Lift the hook to detach. (R6439) Open the cover toward yourself. (R6440) Removal Procedure...
Page 301: Removal Of Fan Motor
Outdoor Unit SiBE12-818 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 (R6441) Remove the 2 screws Be sure to remove the bottom at the bottom first.
Page 302: Removal Of Coils / Thermistors
SiBE12-818 Outdoor Unit Removal of Coils / Thermistors 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 motorized valve coil Pull the motorized valve coil out of position.
Page 303 Outdoor Unit SiBE12-818 Step Procedure Points Pull out the thermistors. Gas pipe thermistor (R6447) (R6448) Removal Procedure...
Page 304 SiBE12-818 Outdoor Unit Step Procedure Points Peel the putty from the liquid pipe thermistor, and pull out the thermistor. Liquid pipe thermistor (R6449) (R6450) 2. Removal of Thermistors Pull out the heat exchanger thermistor. (R6451) Removal Procedure...
Page 305 Outdoor Unit SiBE12-818 Step Procedure Points Remove the spring from Be careful no to lose the the heat exchanger spring. thermistor. Spring Spring (R6452) Slightly open the sound blanket. (R6453) Remove the sound blanket (top upper). (R6454) Removal Procedure...
Page 306 SiBE12-818 Outdoor Unit Step Procedure Points Remove the discharge pipe thermistor. (R6455) Remove the fixture. (R6456) 3. Removing the Four way valve coil and motorized valve coil Remove the screw. (R6457) Removal Procedure...
Page 307 Outdoor Unit SiBE12-818 Step Procedure Points Remove the Four way valve coil. (R6458) Removal Procedure...
Page 308: Removal Of Sound Blanket
SiBE12-818 Outdoor Unit Removal of Sound Blanket Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Undo the 2 Velcro tapes off the sound blanket, and open the sound blanket (outer sleeve).
Page 309 Outdoor Unit SiBE12-818 Step Procedure Points Remove the sound The sound blanket is fragile. blanket (outer sleeve). Be careful of the notches of the compressor mount (3 locations). (R6462) Remove the sound The sound blanket is fragile. blanket (top lower). Carefully pass the discharge pipe through it.
Page 310 SiBE12-818 Outdoor Unit Step Procedure Points Remove the sound blanket (outer sleeve). (R6465) Removal Procedure...
Page 311: Removal Of Compressor
Outdoor Unit SiBE12-818 Removal of Compressor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the terminal cover. (R6466) Pull out the 3 leads U : red, V : yellow, W : blue using long-nose pliers.
Page 312: Part 8 Others
SiBE12-818 Part 8 Others 1. Others ....................302 1.1 Test Run from the Remote Controller ..........302 1.2 Jumper Settings ...................303 1.3 Application of Silicon Grease to a Power Transistor and a Diode Bridge..................304 Others...
Page 313: Others
Others SiBE12-818 1. Others Test Run from the Remote Controller For Heat pump In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature. Trial operation may be disabled in either mode depending on the room temperature. After trial operation is complete, set the temperature to a normal level.
Page 314: Jumper Settings
SiBE12-818 Others Jumper Settings 1.2.1 When Two Units are Installed in One Room When two indoor units are installed in one room, the two wireless remote controllers can be set for different addresses. In case of FTXG series How to set the different addresses Control PCB of the indoor unit (1) Remove the front grille.
Page 315: Application Of Silicon Grease To A Power Transistor And A Diode Bridge
Others SiBE12-818 Application of Silicon Grease to a Power Transistor Diode Bridge Applicable All outdoor units using inverter type compressor for room air conditioner. Models When the printed circuit board of an outdoor unit is replaced, it is required that silicon grease (*1) is certainly applied to the heat radiation part (the contact point to the heat radiation fin) of the power transistor and diode bridge.
Page 316: Part 9 Appendix
SiBE12-818 Part 9 Appendix 1. Piping Diagrams..................306 1.1 Indoor Units ..................306 1.2 Outdoor Units ..................311 2. Wiring Diagrams..................313 2.1 Indoor Units ..................313 2.2 Outdoor Units ..................317 Appendix...
Page 317: Piping Diagrams
Piping Diagrams SiBE12-818 Piping Diagrams Indoor Units 1.1.1 Wall Mounted Type FTXS20G2V1B, FTXS25G2V1B, FTXS50G2V1B FTXS35G2V1B, FTXS42G2V1B INDOOR UNIT INDOOR UNIT 6.4CuT 6.4CuT HEAT EXCHANGER HEAT EXCHANGER THERMISTOR THERMISTOR CROSS FLOW FAN CROSS FLOW FAN ON HEAT EXCH. ON HEAT EXCH. FIELD PIPING FIELD PIPING 6.4CuT...
Page 318 SiBE12-818 Piping Diagrams FTXG25EV1BW(S), FTXG35EV1BW(S) CTXG50EV1BW(S) INDOOR UNIT INDOOR UNIT HEAT EXCHANGER 7.0CuT HEAT EXCHANGER 7.0CuT 7.0CuT 7.0CuT THERMISTOR 7.0CuT 7.0CuT THERMISTOR ON HEAT EXCH ON HEAT EXCH. 7.0CuT 7.0CuT CROSS FLOW FAN CROSS FLOW FAN FIELD PIPING FIELD PIPING (6.4CuT) (6.4CuT) FAN MOTOR...
Page 319 Piping Diagrams SiBE12-818 1.1.2 Duct Connected Type FDKS50CVMB, FDKS60CVMB, FDKS25EAVMB, FDKS35EAVMB FDXS50CVMB, FDXS60CVMB, FDXS25EAVMB, FDXS35EAVMB INDOOR UNIT ( 6.4CuT ) HEAT EXCHANGER THERMISTOR ON HEAT FIELD PIPING ( 6.4CuT ) EXCH. SIROCCO FAN FAN MOTOR FIELD PIPING CuT ) CuT ) REFRIGERANT FLOW CDXS25CVMB CDXS50CVMB...
Page 320 SiBE12-818 Piping Diagrams FLXS25BAVMB, FLXS35BAVMB FLXS50BAVMB, FLXS60BAVMB 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 ) ( 6.4CuT ) EXCH. SIROCCO FAN SIROCCO FAN FAN MOTOR FAN MOTOR...
Page 321 Piping Diagrams SiBE12-818 1.1.5 Ceiling Suspended Type FHQ35/50/60BVV1B Indoor heat exchanger φ Field piping C1220T-0 φ Field piping C1220T-0 Outdoor unit Indoor unit MODEL FHQ35BUV1B FHQ35BVV1B FCQ35BVE FCQ35C7VEB FHQ50, 60BUV1B FHQ50, 60BVV1B FCQ50, 60BVE 12.7 FBQ60BV1 FBQ60BVL FCQ50, 60C7VEB FUQ71, 100, 125BUV1B FUQ71, 100, 125BVV1B FHQ71, 100, 125BUV1B FHQ71, 100, 125BVV1B...
Page 322: Outdoor Units
SiBE12-818 Piping Diagrams Outdoor Units 1.2.1 Cooling Only 5MKS90E7V3B OUTDOOR UNIT MOTOR OPERATED LIQUID PIPE HEAT EXCHANGER VALVE (A) THERMISTOR OUTDOOR TEMPERATURE (ROOM-A) 7.9CuT THERMISTOR HEADER 7.9CuT ROOM A 7.9CuT HEADER LIQUID PIPE MOTOR OPERATED (6.4 CuT) 7.9CuT FILTER VALVE (B) THERMISTOR 7.9CuT 9.5CuT...
Page 323 Piping Diagrams SiBE12-818 4MXS80E7V3B OUTDOOR UNIT MOTOR OPERATED LIQUID PIPE HEAT EXCHANGER VALVE (A) THERMISTOR OUTDOOR 7.9CuT (ROOM-A) TEMPERATURE RECEIVER HEADER 7.9CuT 7.9CuT ROOM A THERMISTOR HEADER LIQUID PIPE MOTOR OPERATED 7.9CuT FILTER (6.4 CuT) VALVE (B) THERMISTOR 7.9CuT 9.5CuT (ROOM-B) 7.9CuT 7.9CuT...
Page 324: Wiring Diagrams
SiBE12-818 Wiring Diagrams Wiring Diagrams Indoor Units 2.1.1 Wall Mounted Type FTXS20G2V1B, FTXS25G2V1B, FTXS35G2V1B FTXS42G2V1B, FTXS50G2V1B FIELD WIRING. PCB3 PCB1 RECTIFIER 3.15A LED1 OUTDOOR LED2 CAUTION LED3 TRANSMISSION NOTE THAT OPERATION WILL CIRCUIT RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN.
Page 325 Wiring Diagrams SiBE12-818 FTXG25EV1BW(S), FTXG35EV1BW(S), CTXG50EV1BW(S) PCB2 LED4 LED3 LED2 SIGNAL RECEIVER GRN / YLW WIRELESS FIELD WIRING. t° REMOTE GRN / YLW CONTROLLER PCB3 PCB1 TRANSMISSION CIRCUIT outdoor INTELLIGENT- EYE SENSOR CAUTION NOTE THAT OPERATION WILL 3.15A RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS RECTIFIER TURNED OFF AND THEN BACK...
Page 326 SiBE12-818 Wiring Diagrams 2.1.3 Floor / Ceiling Suspended Dual Type FLKS25BAVMB, FLKS35BAVMB, FLKS50BAVMB, FLKS60BAVMB FLXS25BAVMB, FLXS35BAVMB, FLXS50BAVMB, FLXS60BAVMB PCB3 PCB1 PCB2 3.15A → outdoor FIELD WIRING. / YLW PCB4 TRANSMISSION CIRCUIT CAUTION NOTE THAT OPERATION WILL SIGNAL RESTART AUTOMATICALLY IF RECEIVER THE MAIN POWER SUPPLY IS indoor...
Page 327 Wiring Diagrams SiBE12-818 2.1.5 Ceiling Suspended Type FHQ35/50/60BVV1B PRINTED CIRCUIT BOARD PUSH BUTTON(ON/OFF) CAPACITOR(M1F) LIGHT EMITTING DIODE :CONNECTER DISCRIMINATION COLOUR FOR COMPONENTS. FUSE(F5A 250V) (ON-RED) :CONNECTER COLOUR FOR COMPONENTS. LIGHT EMITTING DIODE t° LIGHT EMITTING DIODE :CONNECTER COLOUR FOR PRINTED CIRCUIT BOARD. IN CASE OF SIMULTANEOUS (SERVICE MONITOR GREEN) (TIMER-GREEN)
Page 328: Outdoor Units
SiBE12-818 Wiring Diagrams Outdoor Units 2.2.1 Cooling Only 5MKS90E7V3B MRM20 POWER SUPPLY 3.15A V100 MRM10 6 ( P ) 7 ( N ) TO INDOOR UNIT X11A ROOM B 3.15A ROOM A PCB1 ROOM C S101 S80 1 ROOM D t°...
Page 329 Wiring Diagrams SiBE12-818 4MXS80E7V3B MRM20 POWER SUPPLY 3.15A V100 MRM10 6 ( P ) 7 ( N ) TO INDOOR UNIT X11A ROOM B 3.15A ROOM A PCB1 ROOM C S101 ROOM D t° t° t° t° t° t° t° t°...
Page 330: Index
SiBE12-818 Index Numerics check No.04 ............254 check No.05 ............255 00 ................211 check No.06 ............256 2 area INTELLIGENT EYE........65 check No.07 ............257 3-minute standby.............79 check No.08 ............258 check No.09 ............258 check No.10 ............259 A1................214 check No.11 ............
Page 331 SiBE12-818 electrical box temperature rise ......242 four way valve switching ........79 electronic expansion valve check......254 freeze-up protection control ....81, 215, 224 electronic expansion valve control ......84 frequency control............ 77 error codes frequency principle ..........52 00..............211 front panel ............ 268, 270 A1 ..............214 front panel control ..........
Page 332 SiBE12-818 JB ........32, 34, 36, 38, 40, 43, 303 power failure recovery function JC........32, 34, 36, 38, 40, 43, 303 .......... 32, 34, 36, 38, 40, 43 jumper setting............303 power supply PCB..........41 power supply waveforms check ......259 power transistor............ 304 L3 ................242 power transistor check .........
Page 333 SiBE12-818 S37..............34, 40 titanium apatite photocatalytic air-purifying filter ..70 S38................34 top panel .............. 265 S40..............47, 283 troubleshooting..........144, 186 S41..............32, 36, 43 indoor units ............ 212 S42................43 outdoor units ..........213 S46..............32, 36, 43 troubleshooting with the LED indication ....205 S47..............32, 36, 43 troubleshooting with the operation lamp ....
Page 334 SiBE12-818 Drawings & Flow Charts Numerics 2 area INTELLIGENT EYE ........65 fan motor connector output check ....... 253 3-D airflow ..............54 fan motor or related abnormality AC motor ............217 DC motor ............218 anti-icing function in other rooms ......252 four way valve performance check ......
Page 335 SiBE12-818 outdoor unit fan system check (with DC motor) ...258 signal receiver PCB ......33, 35, 37, 42 outdoor unit PCB abnormality ......226 signal transmission error ........222 output over current detection .......246 signal transmission error (on outdoor unit PCB) over-voltage detection ..........250 ..............
Page 336 SiBE12-818 wiring-error check ...........90 Drawings & Flow Charts...
Page 337 Specifications, designs and other content appearing in this brochure are current as of February 2008 but subject to change without notice. SiBE 12-818 Printed in Japan 02/2008 B AK...

Daikin E-Series Service Manual

Part 1 List of Functions

Part 2 Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

Part 4 Function and Control

Part 5 Operation Manual

Part 6 Service Diagnosis

Part 7 Removal Procedure

Part 8 Others

Part 9 Appendix

Index

Quick Links

Troubleshooting

Need help?

Questions and answers

Related Manuals for Daikin E-Series

Summary of Contents for Daikin E-Series

Table of Contents