Page 1 Si01 - 501 SPLIT Pair D-Series [Applied Models] Non-Inverter Pair : Cooling Only...
Page 2 Si01-501 Non Inverter Pair D-Series Cooling Only Indoor Unit FT09DV2S FT25DVM FT25DSG FT50DSG FT13DV2S FT35DVM FT35DSG FT60DSG FT15DV2S Outdoor Unit R09DV2S R25DV1 R25DSG R50DSG R13DV2S R35DV1 R35DSG R60DSG R15DV2S Table of Contents...
Page 3: Table Of Contents
Si01-501 1. Introduction .....................v 1.1 Safety Cautions ..................v Part 1 List of Function ..............1 1. Functions....................2 Part 2 Specifications ..............5 1. Specifications ..................6 Part 3 Printed Circuit Board Connector Wiring Diagram ... 11 1. Printed Circuit Board Connector Wiring Diagram........12 1.1 Indoor Unit....................12 1.2 Outdoor Unit ...................18 Part 4 Details of Functions ............
Page 4 Si01-501 Part 5 System Configuration............51 1. System Configuration................52 2. Instructions....................53 2.1 Safety Precautions .................53 2.2 25/35 Class ....................55 2.3 50/60 Class ....................74 Part 6 Service Diagnosis............. 95 1. Caution for Diagnosis................96 2. Troubleshooting by Symptoms..............98 3. Service Check Function ..............103 4.
Page 5 Si01-501 2. FT15DV2S, FT50/60DSG ..............177 2.1 Removal of Air Filter / Front Panel ............177 2.2 Removal of Front Grille ................180 2.3 Removal of Horizontal Blades / Vertical Blades ........182 2.4 Removal of Electrical Box / PCB / Swing Motor ........184 2.5 Removal of Heat Exchanger ..............190 2.6 Removal of Fan Rotor / Fan Motor............193 3.
Page 6: Introduction
Si01-501 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 Si01-501 Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock. Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical shocks.
Page 8 Si01-501 Introduction Warning Be sure to use the specified cable to connect between the indoor and outdoor units. Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals. Improper connections can cause excessive heat generation or fire.
Page 9 Introduction Si01-501 Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it.
Page 10: Part 1 List Of Function
Si01-501 Part 1 List of Function 1. Functions....................2 List of Function...
Page 11: Functions
Functions Si01-501 Functions Category Functions Category Functions Inverter Air Purifying Filter with — — — — — (with Inverter Power Control) Bacteriostatic, Virustatic Functions 19.4 19.4 19.4 Operation Limit for Cooling (°C) Photocatalytic Deodorizing Filter — — Basic Air Purifying Filter with Function Operation Limit for Heating (°C) —...
Page 12 Si01-501 Functions Category Functions Category Functions Inverter Air Purifying Filter with — — — — (with Inverter Power Control) Bacteriostatic, Virustatic Functions 19.4 19.4 Operation Limit for Cooling (°C) Photocatalytic Deodorizing Filter — — Basic Function Air Purifying Filter with Operation Limit for Heating (°C) —...
Page 13 Functions Si01-501 Category Functions Category Functions Inverter Air Purifying Filter with — — — — (with Inverter Power Control) Bacteriostatic, Virustatic Functions 19.4 –5 Photocatalytic Deodorizing Filter — — Basic Operation Limit for Cooling (°CDB) Function Air Purifying Filter with Operation Limit for Heating (°CWB) —...
Page 14: Part 2 Specifications
Si01-501 Part 2 Specifications 1. Specifications ..................6 Specifications...
Page 15: Specifications
Specifications Si01-501 Specifications 50Hz 220V Indoor Units FT09DV2S FT13DV2S Models Outdoor Units R09DV2S R13DV2S 3.70 Capacity (Rated) Btu/h 8,900 12,700 kcal/h 2,240 3,200 Moisture Removal Running Current (Rated) 3.94 5.17 Power Consumption (Rated) 1,105 Power Factor 93.4 97.2 COP (Rated) 3.21 3.35 φ...
Page 16 Si01-501 Specifications 50Hz 220V Indoor Units FT15DV2S Models Outdoor Units R15DV2S Capacity (Rated) Btu/h 14,400 kcal/h 3,620 Moisture Removal Running Current (Rated) 5.88 Power Consumption (Rated) 1,270 Power Factor 98.2 COP (Rated) 3.31 φ 6.4 Liquid Piping φ12.7 Connections φ18.0 Drain Heat Insulation Both Liquid and Gas Pipes...
Page 17 Specifications Si01-501 50Hz 220/240V Indoor Units FT25DVM FT35DVM Models R25DV1 R35DV1 Outdoor Units Cooling Cooling 2.62 / 2.62 3.58 / 3.58 Capacity Btu/h 8,900 / 8,900 1,2200 / 1,2200 kcal/h 2,250 / 2,250 3,050 / 3,050 Moisture Removal Running Current 3.94 / 4.25 5.52 / 5.45 Power Consumption...
Page 18 Si01-501 Specifications 50Hz 230V Indoor Units FT25DSG FT35DSG Models Outdoor Units R25DSG R35DSG 2.65 Capacity (Rated) Btu/h 9,000 12,600 kcal/h 2,270 3,180 Moisture Removal Running Current (Rated) 4.09 5.23 Power Consumption (Rated) 1,150 Power Factor 90.4 95.6 COP (Rated) 3.12 3.22 φ...
Page 19 Specifications Si01-501 50Hz 230V Indoor Units FT50DSG FT60DSG Models Outdoor Units R50DSG R60DSG Capacity (Rated) Btu/h 18,090 20,140 kcal/h 4,560 5,070 Moisture Removal Running Current (Rated) 7.31 Power Consumption (Rated) 1,650 1,800 Power Factor 98.1 97.8 COP (Rated) 3.21 3.28 φ...
Page 20: Part 3 Printed Circuit Board Connector Wiring Diagram
Si01-501 Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram........12 1.1 Indoor Unit....................12 1.2 Outdoor Unit ...................18 Printed Circuit Board Connector Wiring Diagram...
Page 21: Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram Si01-501 1. Printed Circuit Board Connector Wiring Diagram Indoor Unit 1.1.1 FT25/35DVM, FT25DSG, FT09DV2S Connectors PCB (1) (Control PCB) Connector for AC fan motor Connector for swing motor (horizontal blades) Connector for AC fan motor (Hall IC) Connector for centralized control (HA)
Page 22 Si01-501 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB LED A (R4826) PCB(2): Signal Receiver PCB PCB(3): Display PCB LED1 LED2 RTH1 (R4289) (R4827) Printed Circuit Board Connector Wiring Diagram...
Page 23 Printed Circuit Board Connector Wiring Diagram Si01-501 1.1.2 FT35DSG, FT13DV2S Connectors PCB (1) (Control PCB) Connector for DC fan motor Connector for swing motor (horizontal blades) Connector for centralized control (HA) Connector for display PCB Connector for signal receiver PCB Connector for heat exchanger thermistor PCB (2) (Signal Receiver PCB) Connector for control PCB...
Page 24 Si01-501 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB LED A (R4828) PCB(2): Signal Receiver PCB PCB(3): Display PCB LED1 LED2 RTH1 (R4289) (R4829) Printed Circuit Board Connector Wiring Diagram...
Page 25 Printed Circuit Board Connector Wiring Diagram Si01-501 1.1.3 FT15DV2S, FT50/60DSG Connectors PCB (1) (Control PCB) Connector for DC fan motor Connector for swing motor (horizontal blades) Connector for swing motor (vertical blades) (FT50/60DSG model) Connector for centralized control (HA) Connector for buzzer PCB Connector for signal receiver PCB Connector for heat exchanger thermistor H1, H2, H3...
Page 26 Si01-501 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB LED A (R4003) PCB(2): Signal Receiver PCB PCB(3): Buzzer PCB (R2861) RTH1 (R2862) PCB(4): Display PCB LED1 LED2 (R3087) Printed Circuit Board Connector Wiring Diagram...
Page 27: Outdoor Unit
Printed Circuit Board Connector Wiring Diagram Si01-501 Outdoor Unit 1.2.1 R60DSG Connectors PCB (1)(Control PCB) 1) S10, Connector for terminal strip Connector for electronic expansion valve coil 3) S31, Connector for SPM 4) S33, Connector for MID Connector for overload protector 6) S51, S101 Connector for service monitor PCB...
Page 28 Si01-501 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB (outdoor unit) FU2(3.15A) S101 (R2865) PCB(2): Power Supply PCB Service Monitor PCB FU1(30A) LED A HAC1 S102 (R4823) (R2866) Printed Circuit Board Connector Wiring Diagram...
Page 29 Printed Circuit Board Connector Wiring Diagram Si01-501 FU201 (3.15A) (R2868) CN11 CN14 (R2869) Printed Circuit Board Connector Wiring Diagram...
Page 30: Part 4 Details Of Functions
Si01-501 Part 4 Details of Functions 1. Functions of FT25/35/50D, FT09/13/15D Models .........22 1.1 Air Flow Direction Control...............22 1.2 Fan Speed Control for Indoor Units............23 1.3 Thermostat Control.................24 1.4 Programme Dry Function ...............25 1.5 NIGHT SET Mode ..................26 1.6 POWERFUL Operation ................27 1.7 Freeze-up Protection Control ..............28 1.8 Other Functions..................29 2.
Page 31: Functions Of Ft25/35/50D, Ft09/13/15D Models
Functions of FT25/35/50D, FT09/13/15D Models Si01-501 Functions of FT25/35/50D, FT09/13/15D Models Air Flow Direction Control Power-Airflow The large flaps send a large volume of air downwards to the floor. The flap provides an optimum control area in cooling and dry mode. Dual Flaps Cooling Mode During cooling mode, the flap retracts into the indoor unit.
Page 32: Fan Speed Control For Indoor Units
Si01-501 Functions of FT25/35/50D, FT09/13/15D Models Fan Speed Control for Indoor Units Control Mode The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature. This is done through rotation speed control, or phase and Hall IC control.
Page 33: Thermostat Control
Functions of FT25/35/50D, FT09/13/15D Models Si01-501 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 34: Programme Dry Function
Si01-501 Functions of FT25/35/50D, FT09/13/15D Models Programme Dry Function By the function of the microcomputer, programme dry operation reduces the humidity keeping the temperature in a minimum drop. Room temperature and air flow rate can not be controlled by the adjusting buttons because they are controlled automatically. When the program dry function starts, dry operation is provided, and then it repeats 5-minute suspension and 4-minute dry operation alternately.
Page 35: Night Set Mode
Functions of FT25/35/50D, FT09/13/15D Models Si01-501 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 cooling the room at the set temperature for the first one hour, Circuit then automatically raises the temperature setting slightly for economical operations.
Page 36: Powerful Operation
Si01-501 Functions of FT25/35/50D, FT09/13/15D Models POWERFUL Operation Outline In order to exploit the cooling 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 twenty minutes.
Page 37: Freeze-Up Protection Control
Functions of FT25/35/50D, FT09/13/15D Models Si01-501 Freeze-up Protection Control When the indoor heat exchanger temperature falls below 3°C in cooling or in dry operation, the compressor and the outdoor fan are forced to turn OFF. the indoor fan rotates at the L tap (in cooling operation) or LL tap (in dry operation). Note that this function is not activated for 6 minutes after compressor turns ON.
Page 38: Other Functions
Si01-501 Functions of FT25/35/50D, FT09/13/15D Models Other Functions 1.8.1 Signal Receiving Sign When the indoor unit receives a signal from the remote controller, the unit emits a signal receiving sound. 1.8.2 ON/OFF Button on Indoor Unit An ON/OFF button is provided on the front panel of the unit. Use this button when the remote controller is missing or if its battery has run out.
Page 39: Functions Of Ft60D Model
Functions of FT60D Model Si01-501 Functions of FT60D Model 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 Additional The target frequency is adapted by additional parameters in the following cases:...
Page 40 Si01-501 Functions of FT60D Model Inverter Features The inverter provides the following features: The regulating capacity can be changed according to the changes in the outside temperature and cooling load. Quick cooling The compressor rotational speed is increased when starting cooling. This enables a quick set temperature.
Page 41: Power-Airflow Dual Flaps, Wide Angle Louvers And Auto-Swing
Functions of FT60D Model Si01-501 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 and dry mode. Dual Flaps Cooling Mode During cooling mode, the flap retracts into the indoor unit.
Page 42: Fan Speed Control For Indoor Units
Si01-501 Functions of FT60D Model 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 rotation speed control and Hall IC control.
Page 43: Thermostat Control
Functions of FT60D Model Si01-501 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 44: Programme Dry Function
Si01-501 Functions of FT60D Model 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 45: Night Set Mode
Functions of FT60D Model Si01-501 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 cooling the room at the set temperature for the first one hour, Circuit then automatically raises the temperature setting slightly for economical operations.
Page 46: Powerful Operation
Si01-501 Functions of FT60D Model POWERFUL Operation Outline In order to exploit the cooling 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 twenty minutes.
Page 47: Other Functions
Functions of FT60D Model Si01-501 Other Functions 2.8.1 Signal Receiving Sign When the indoor unit receives a signal from the remote controller, the unit emits a signal receiving sound. 2.8.2 ON/OFF Button on Indoor Unit An ON/OFF button is provided on the front panel of the unit. Use this button when the remote controller is missing or if its battery has run out.
Page 48: Control Specification Of R60D Model
Si01-501 Control Specification of R60D Model 3. Control Specification of R60D Model Function of Thermistor Electrontic expansion valve Compressor (R2828) Outdoor Heat 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature. Set a target discharge temperature depending on the outdoor and indoor heat exchanger Exchanger temperature.
Page 49: Mode Hierarchy
Control Specification of R60D Model Si01-501 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 For cooling only model There are following models; stop and cooling (including drying). Air conditioner control mode Forced operating mode Forced cooling (for Pump Down Operation)
Page 50: Frequency Control
Si01-501 Control Specification of R60D Model Frequency Control Outline Frequency will be determined according to the difference between room and set temperature. The function is explained as follows. 1. How to determine frequency. 2. Frequency command from an indoor unit. (The difference between a room temperature and the temperature set by the remote controller.) 3.
Page 51 Control Specification of R60D Model Si01-501 Frequency Initial Setting <Outline> When starting the compressor, or when conditions are varied due to the change of the room, the frequency must be initialized according to the total of a maximum ∆D value of the indoor unit and the Q value of the indoor unit.
Page 52: Controls At Mode Changing / Start-Up
Si01-501 Control Specification of R60D Model Controls at Mode Changing / Start-up 3.4.1 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. Detail Preheating ON Condition When outdoor air temperature is below 10.5°C and discharge pipe temperature is below...
Page 53: Input Current Control
Control Specification of R60D Model Si01-501 Input Current Control Outline Detect an input current by the CT during the compressor is running, and set the frequency upper limit from such input current. In case of heat pump model, this control is the upper limit control function of the frequency which takes priority of the lower limit of four way valve activating compensation.
Page 54: Fan Control
Si01-501 Control Specification of R60D Model Fan Control Outline Fan control is carried out according to the following priority. 1. Fan ON control for electric component cooling fan 2. Fan OFF delay when stopped 3. ON/OFF control in cooling operation 4.
Page 55: Electronic Expansion Valve Control
Control Specification of R60D Model Si01-501 3.10 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.
Page 56 Si01-501 Control Specification of R60D Model 3.10.1 Fully Closing with Power ON Initialize the electronic expansion valve when turning on the power, set the opening position and develop pressure equalizing. 3.10.2 Pressure Equalization Control When the compressor is stopped, open and close the electronic expansion valve and develop pressure equalization.
Page 57 Control Specification of R60D Model Si01-501 3.10.7 Control when frequency is changed When the target discharge pipe temperature control is active, if the target frequency is changed for a specified value in a certain time period, cancel the target discharge pipe temperature control and change the target opening of the electronic expansion valve according to the shift.
Page 58: Malfunctions
Si01-501 Control Specification of R60D Model 3.11 Malfunctions 3.11.1 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.
Page 59: Forced Operation Mode
Control Specification of R60D Model Si01-501 3.12 Forced Operation Mode Outline Forced operating mode includes only forced cooling. Detail Forced Cooling Item Forced Cooling Forced operation 1) The outdoor unit is not abnormal allowing conditions and not in the 3-minute stand-by mode.
Page 60: Part 5 System Configuration
Si01-501 Part 5 System Configuration 1. System Configuration................52 2. Instructions....................53 2.1 Safety Precautions .................53 2.2 25/35 Class ....................55 2.3 50/60 Class ....................74 System Configuration...
Page 61: System Configuration
System Configuration Si01-501 1. System Configuration After the installation and test operation of the room air conditioner have been completed, it should be operated and handled as described below. Every user would like to know the correct method of operation of the room air conditioner, to check if it is capable of cooling well, and to know a clever method of using it.
Page 62: Instructions
• 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 63 Instructions Si01-501 • Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not remove the fan guard. • Do not place anything under the indoor or outdoor unit that must be kept away from moisture. In certain conditions, moisture in the air may condense and drip.
Page 64: 25/35 Class
Si01-501 Instructions 25/35 Class Note: This instruction is appropriate for FT25/35DVM models. 2.2.1 Names of Parts Names of parts Indoor Unit ON/OFF System Configuration...
Page 65 Instructions Si01-501 Outdoor Unit Indoor Unit 1. Air filter 11. Indoor Unit ON/OFF switch: (page 10.) • Push this switch once to start operation. 2. Air purifying filter with Push once again to stop it. photocatalytic deodorizing function: • The operation mode refers to the following •...
Page 66 Si01-501 Instructions Remote Controller ECONO ON/OFF TEMP POWERFUL MODE SWING SILENT MOLD PROOF SENSOR CANCEL TIMER < > ARC433A55 1. Signal transmitter: 7. FAN setting button: • It selects the air flow rate setting. • It sends signals to the indoor unit. 8.
Page 67 Instructions Si01-501 2.2.2 Preparation before Operation Preparation Before Operation To set the batteries Position + and – correctly! 1. Press with a finger and slide the front cover to take it off. 2. Set two dry batteries (AAA). 3. Set the front cover as before. ATTENTION About batteries •...
Page 68 Si01-501 Instructions 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 control- ler, such as a curtain, the unit will not operate. •...
Page 69 Instructions Si01-501 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 ECONO ON/OFF increases or decreases the time display. TEMP POWERFUL 3.
Page 70 Si01-501 Instructions 2.2.3 DRY·COOL·FAN Operation DRY · COOL · FAN Operation The air conditioner operates with the operation mode of your choice. From the next time on, the air conditioner will operate with the same operation mode. To start operation 1.
Page 71 Instructions Si01-501 To change the air flow rate setting 5. Press “FAN setting button”. DRY mode COOL or FAN mode Five levels of air flow rate setting from “ ” to “ ” plus “ ” are available. The air flow rate setting is not variable. NOTE Note on DRY operation •...
Page 72 Si01-501 Instructions 2.2.4 Adjusting the Air Flow Direction Adjusting the Air Flow Direction You can adjust the air flow direction to increase your comfort. To adjust the horizontal blades (flaps) 1. Press “SWING button”. is displayed on the LCD and the flaps will begin to swing.
Page 73 Instructions Si01-501 To adjust the vertical blades (louvers) Hold the knob and move the louvers. (You will find a knob on the left-side and the right-side blades.) • When the unit is installed in the corner of a room, the direction of the louvers should be facing away from the wall.
Page 74 Si01-501 Instructions 2.2.5 POWERFUL Operation POWERFUL Operation POWERFUL operation quickly maximizes the cooling 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 ECONO...
Page 75 Instructions Si01-501 2.2.6 TIMER Operation TIMER Operation Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning. You can also use OFF TIMER and ON TIMER in combination. To use OFF TIMER opera- tion •...
Page 76 Si01-501 Instructions TIMER Operation To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time (page 9.). 1. Press “ON TIMER button”. is displayed. blinks. 2. Press “TIMER Setting button” until the time setting reaches the point you like.
Page 77 Instructions Si01-501 2.2.7 Care and Cleaning 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 78 Si01-501 Instructions Filters 1. Open the front panel. (page 17.) 2. Pull out the air filters. • Push a little upwards the tab at the center of each air filter, then pull it down. 3. Take off the air purifying filter with photocatalytic deodorizing function.
Page 79 Instructions Si01-501 NOTE • Operation with dirty filters: (1) cannot deodorize the air. (2) cannot clean the air. (3) results in poor cooling. (4) may cause odour. • To order air purifying filter with photocatalytic deodorizing function contact to the service shop there you bought the air conditioner.
Page 80 Si01-501 Instructions 2.2.8 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 81 Instructions Si01-501 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 82 Si01-501 Instructions 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 83: 50/60 Class
Instructions Si01-501 50/60 Class Note: This instruction is appropriate for FT50/60DSG models. 2.3.1 Names of Parts Names of parts Indoor Unit Main unit control panel System Configuration...
Page 84 Si01-501 Instructions Indoor Unit 1. Air filter 12. Indoor Unit ON/OFF switch: • Push this switch once to start operation. 2. Air purifying filter with photocatalytic Push once again to stop it. deodorizing function: • The operation mode refers to the following •...
Page 85 Instructions Si01-501 Outdoor Unit (50 class) Outdoor Unit 15. Air inlet: (Back and side) 19. Earth terminal: • It is inside of this cover. 16. Air outlet 20. Stop valve: 17. Refrigerant piping and inter-unit cable • Dew condensation may form on the stop 18.
Page 86 Si01-501 Instructions Remote Controller ON/OFF TEMP POWERFUL MODE SWING CANCEL TIMER < > ARC433A26 1. Signal transmitter: 8. SWING button: (page 13.) • It sends signals to the indoor unit. • Flaps (Horizontal blades) 2. Display: 9. SWING button: (page 13.) •...
Page 87 Instructions Si01-501 2.3.2 Preparation Before Operation Preparation Before Operation To set the batteries Position + and – 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 88 Si01-501 Instructions 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 control- ler, such as a curtain, the unit will not operate. •...
Page 89 Instructions Si01-501 To set the clock 1. Press “CLOCK button”. “ ” is displayed. “ ” blinks. 2. Press “TIMER setting button” to set the clock to the present time. ON/OFF Holding down “ ” or “ ” button rap- TEMP POWERFUL idly increases or decreases the time dis-...
Page 90 Si01-501 Instructions 2.3.3 DRY·COOL·FAN Operation DRY · COOL · FAN Operation The air conditioner operates with the operation mode of your choice. From the next time on, the air conditioner will operate with the same operation mode. To start operation 1.
Page 91 Instructions Si01-501 To change the air flow rate setting 5. Press “FAN setting button”. DRY mode COOL or FAN mode Five levels of air flow rate setting from “ ” to “ ” plus “ ” are available. The air flow rate setting is not variable. NOTE Note on DRY operation •...
Page 92 Si01-501 Instructions 2.3.4 Adjusting the Air Flow Direction Adjusting the Air Flow Direction You can adjust the air flow direction to increase your com- fort. To adjust the horizontal blades (flaps) 1. Press “SWING button ”. • “ ” is displayed on the LCD. 2.
Page 93 Instructions Si01-501 To 3-D Airflow 1. 3. Press the “SWING button ” and the “SWING button ”: the “ ” and “ ” display will light up and the flaps and louvers will move in turn. To cancel 3-D Airflow 2.
Page 94 Si01-501 Instructions 2.3.5 POWERFUL Operation POWERFUL Operation POWERFUL operation quickly maximizes the cooling 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 ON/OFF before POWERFUL operation.
Page 95 Instructions Si01-501 2.3.6 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 96 Si01-501 Instructions To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time (page 10.). 1. Press “ON TIMER button”. “ ” is displayed. “ ” blinks. 2. Press “TIMER Setting button” until the time setting reaches the point you like.
Page 97 Instructions Si01-501 2.3.7 Care and Cleaning 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 98 Si01-501 Instructions Filters 1. Open the front panel. (page 18.) 2. Pull out the air filters. • Push a little upwards the tab at the center of each air filter, then pull it down. 3. Take off the air purifying filter with photocatalytic deodorizing function.
Page 99 Instructions Si01-501 NOTE • Operation with dirty filters: (1) cannot deodorize the air. (2) cannot clean the air. (3) results in poor cooling. (4) may cause odour. • To order air purifying filter with photocatalytic deodorizing function contact to the service shop where you bought the air conditioner.
Page 100 Si01-501 Instructions 2.3.8 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 101 Instructions Si01-501 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 102 Si01-501 Instructions 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 103 Instructions Si01-501 System Configuration...
Page 104: Part 6 Service Diagnosis
Si01-501 Part 6 Service Diagnosis 1. Caution for Diagnosis................96 2. Troubleshooting by Symptoms..............98 3. Service Check Function ..............103 4. Troubleshooting ..................106 4.1 Error Codes and Description ..............106 4.2 Indoor Unit PCB Abnormality ...............107 4.3 Freeze-up Protection Control ...............108 4.4 Fan Motor or Related Abnormality ............109 4.5 Thermistor or Related Abnormality (Indoor Unit)........112 4.6 Signal Transmission Error (between Indoor and Outdoor Units)..113 4.7 OL Activation (Compressor Overload) ..........114...
Page 105: Caution For Diagnosis
Caution for Diagnosis Si01-501 1. Caution for Diagnosis The operation lamp flashes when any of the following errors is detected. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions, disabling equipment operation. Location of Operation Lamp FT25/35DVM, FT25/35DSG, FT09/13DV2S...
Page 106 Si01-501 Caution for Diagnosis Troubleshooting with the LED R60DSG only Indication The outdoor unit has one green LED (LED A) on the PCB. The flashing green LED indicates normal condition of microcomputer operation. Service Diagnosis...
Page 107: Troubleshooting By Symptoms
Troubleshooting by Symptoms Si01-501 Troubleshooting by Symptoms Symptom Check Item Details of Measure Reference Page None of the units Check the power supply. Check to make sure that the rated voltage is — operates. supplied. Check the type of the indoor units. Check to make sure that the indoor unit type is —...
Page 108 Si01-501 Troubleshooting by Symptoms Case 1 Phenomenon : Air conditioner does not operate. Case 2 Phenomenon : Air conditioner does not operate with wireless remote controller. Case 3 Phenomenon : Air conditioner does not operate, and LED for operation blinks. Service Diagnosis...
Page 109 Troubleshooting by Symptoms Si01-501 Case 4 Phenomenon : Air conditioner does not operate, and LED for operation blinks. Service Diagnosis...
Page 110 Si01-501 Troubleshooting by Symptoms Case 5 Phenomenon : Air conditioner does not come into cooling though indoor fan is operating. Service Diagnosis...
Page 111 Troubleshooting by Symptoms Si01-501 Case 6 Phenomenon : Air conditioner does not come into cooling though indoor fan is operating. Service Diagnosis...
Page 112: Service Check Function
Si01-501 Service Check Function Service Check Function In the ARC433A series remote controller, the temperature display sections on the main unit indicate corresponding codes. Check Method 1 1. When the timer cancel button is held down for 5 seconds, a “00” indication flashes on the temperature display section.
Page 113 Service Check Function Si01-501 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 114 Si01-501 Service Check Function The digit of the number of units blinks. (R4276) 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 115: Troubleshooting
Troubleshooting Si01-501 Troubleshooting Error Codes and Description Reference Code Indication Description Page System Normal — Insufficient gas Low-voltage detection Signal transmission error (between indoor and outdoor units) Indoor Indoor unit PCB abnormality Unit Freeze-up protection control AC motor Fan motor or related abnormality DC motor Heat exchanger thermistor abnormality Room temperature thermistor abnormality...
Page 116: Indoor Unit Pcb Abnormality
Si01-501 Troubleshooting 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 117: Freeze-Up Protection Control
Troubleshooting Si01-501 Freeze-up Protection Control Remote Controller Display Method of The freeze-up protection control (operation halt) is activated during cooling operation Malfunction according to the temperature detected by the indoor unit heat exchanger thermistor. Detection Malfunction Freeze-up protection When the indoor unit heat exchanger temperature is below 0°C during cooling operation. Decision Conditions Supposed...
Page 118: Fan Motor Or Related Abnormality
Si01-501 Troubleshooting Fan Motor or Related Abnormality 4.4.1 AC motor (FT25/35DVM, FT25DSG, FT09DV2S) 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 is less than 50% of the HH tap under maximum fan motor rotation demand.
Page 119 Troubleshooting Si01-501 4.4.2 DC motor (FT13/15DV2S, FT35/50/60DSG) 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 is less than 50% of the H tap under maximum fan motor rotation demand.
Page 120 Si01-501 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 Refer to P.136 and rotate fan by hand. Does fan rotate Replace fan motor. smoothly? Turn power ON and operate fan.
Page 121: Thermistor Or Related Abnormality (Indoor Unit)
Troubleshooting Si01-501 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 122: Signal Transmission Error (Between Indoor And Outdoor Units)
Si01-501 Troubleshooting Signal Transmission Error (between Indoor and Outdoor Units) 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 123: Ol Activation (Compressor Overload)
Troubleshooting Si01-501 OL Activation (Compressor Overload) Remote Controller 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 124: Compressor Lock
Si01-501 Troubleshooting Compressor Lock Remote Controller Display Method of A compressor lock is detected by checking the compressor running condition through the Malfunction position detection circuit. Detection Malfunction The position detection circuit detects a compressor frequency of below 10 Hz for 20 seconds or a frequency of above 160 Hz.
Page 125: Dc Fan Lock
Troubleshooting Si01-501 DC Fan Lock Remote Controller Display Method of A fan motor or related error is detected by checking the high-voltage fan motor rpm being Malfunction detected by the Hall IC. 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 126: Input Over Current Detection
Si01-501 Troubleshooting 4.10 Input Over Current Detection Remote Controller Display Method of An input over-current is detected by checking the input current value being detected by CT with Malfunction the compressor running. Detection Malfunction The following CT input with the compressor running continues for 2.5 seconds. CT input : Above 20 A Decision The system will be shut down if the error occurs 16 times.
Page 127 Troubleshooting Si01-501 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. ∗ An input over-current may result from wrong internal wiring. If the wires have been disconnected and Check No.07 reconnected for part replacement, for example, and the system is interrupted by an input over-current, Refer to P.138 take the following procedure.
Page 128: Discharge Pipe Temperature Control
Si01-501 Troubleshooting 4.11 Discharge Pipe Temperature Control Remote Controller Display Method of The discharge pipe temperature control (stop, frequency drooping, etc.) is checked with the Malfunction temperature being detected by the discharge pipe thermistor. Detection Malfunction If a stop takes place 6 times successively due to abnormal discharge pipe temperature, the system will be shut down.
Page 129: High Pressure Control In Cooling
Troubleshooting Si01-501 4.12 High Pressure Control in Cooling Remote Controller Display Method of High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the Malfunction temperature being sensed by the heat exchanger thermistor exceeds the limit. Detection Malfunction Activated when the temperature being sensed by the heat exchanger thermistor rises above 69.5°C.
Page 130 Si01-501 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 installation space. Refer to P.136 Check No. 07 Abnormal Check No.06 Installation condition Change the air outlet grille Refer to P.137 check position.
Page 131: Position Sensor Abnormality
Troubleshooting Si01-501 4.13 Position Sensor Abnormality Remote Controller Display Method of A compressor startup failure is detected by checking the compressor running condition through Malfunction the position detection circuit. Detection Malfunction The compressor fails to start in about 15 seconds after the compressor run command signal is sent.
Page 132: Ct Or Related Abnormality
Si01-501 Troubleshooting 4.14 CT or Related Abnormality Remote Controller Display Method of A CT or related error is detected by checking the compressor running frequency and CT- Malfunction detected input current. Detection Malfunction The compressor running frequency is below 55 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 133 Troubleshooting Si01-501 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 again. Refer to P.141 Get the system started. ∗...
Page 134: Thermistor Or Related Abnormality (Outdoor Unit)
Si01-501 Troubleshooting 4.15 Thermistor or Related Abnormality (Outdoor Unit) P4, J3, J6, H9 Remote Controller Display Method of This type of error is detected by checking the thermistor input voltage to the microcomputer. Malfunction [A thermistor error is detected by checking the temperature.] Detection Malfunction The thermistor input is above 4.96 V or below 0.04 V with the power on.
Page 135 Troubleshooting Si01-501 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.137 Error displayed again Reconnect. on remote controller? Connector or thermistor Reconnect.
Page 136: Electrical Box Temperature Rise
Si01-501 Troubleshooting 4.16 Electrical Box Temperature Rise Remote Controller Display Method of An electrical box temperature rise is detected by checking the radiation fin thermistor with the Malfunction compressor off. Detection Malfunction With the compressor off, the radiation fin temperature is above 75°C. (Reset is made when the temperature drops below 70°C.) Decision Conditions...
Page 137 Troubleshooting Si01-501 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.06 WARNING Turn off the power and turn it on Refer to P.137 again. To cool down the electricals, the outdoor unit fan gets started when the radiation fin temperature rises above 75˚C and stops itself when...
Page 138: Radiation Fin Temperature Rise
Si01-501 Troubleshooting 4.17 Radiation Fin Temperature Rise Remote Controller Display Method of A radiation fin temperature rise is detected by checking the radiation fin thermistor with the Malfunction compressor on. Detection Malfunction If the radiation fin temperature with the compressor on is above 90°C, If a radiation fin temperature rise takes place 4 times successively, the system will be shut Decision down.
Page 139 Troubleshooting Si01-501 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.06 Turn off the power and turn it on again to get the system started. Refer to P.137 Check No.07 Refer to P.138 Error displayed again?
Page 140: Output Over Current Detection
Si01-501 Troubleshooting 4.18 Output Over Current Detection Remote Controller 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 141 Troubleshooting Si01-501 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. ∗ An output over-current may result from wrong internal wiring. If the wires have been disconnected and Check No.07 reconnected for part replacement, for example, and the system is interrupted by an output over-current, Refer to P.138 take the following procedure.
Page 142: Insufficient Gas
Si01-501 Troubleshooting 4.19 Insufficient Gas Remote Controller Display Method of Gas shortage detection I: Malfunction Gas shortage is detected by checking the input current value and the compressor running 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 143 Troubleshooting Si01-501 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.136 Any thermistor Reconnect in position. disconnected? * Discharge pipe thermistor * Indoor / outdoor unit heat exchanger thermistor * Room temperature thermistor Check No.06 * Outdoor air thermistor...
Page 144: Low-Voltage Detection
Si01-501 Troubleshooting 4.20 Low-voltage Detection Remote Controller Display Method of An abnormal voltage rise or drop is detected by checking the detection circuit or DC voltage Malfunction detection circuit. 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 145: Check
Check Si01-501 5. Check How to Check 5.1.1 Fan Motor Connector Output Check Check No.01 1. Check connector connection. 2. Check motor power supply voltage output (pins 4-7). 3. Check motor control voltage (pins 4-3). 4. Check rotation command voltage output (pins 4-2). 5.
Page 146 Si01-501 Check 5.1.3 Thermistor Resistance Check Check No.06 Remove the connectors of the thermistors on the PCB, and measure the resistance of each thermistor using tester. The relationship between normal temperature and resistance is shown in the graph and the table below.
Page 147 Check Si01-501 5.1.4 Installation Condition Check Check No.07 Installation condition check Check the allowable Abnormal Change the position of the air dimensions of the air suction discharge grille or the and discharge area. installation location. Normal Does the discharged air from other outdoor Change the position of the air unit cause an increase of discharge grille or the...
Page 148 Si01-501 Check 5.1.5 Discharge Pressure Check Check No.08 Discharge pressure check High Replace compessor. Is the stop valve open? Open the stop valve. Is the connection pipe deformed? Replace the pipe installed at the site. At the heat exchanger and Clean.
Page 149 Check Si01-501 5.1.7 Power Supply Waveforms Check Check No.10 Measure the power supply waveform between pins 1 and 3 on the terminal board, and check the waveform disturbance. Check to see if the power supply waveform is a sine wave (Fig.1). Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2) [Fig.1] [Fig.2]...
Page 150 Si01-501 Check 5.1.9 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 151 Check Si01-501 5.1.11 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 152 Si01-501 Check 5.1.13 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. Failure of (1) faulty PCB Replace the PCB.
Page 153 Check Si01-501 Service Diagnosis...
Page 154: Part 7 Removal Procedure
Si01-501 Part 7 Removal Procedure 1. FT09/13DV2S, FT25/35DVM, FT25/35DSG........146 1.1 Removal of Air Filter................146 1.2 Removal of Front Panel................148 1.3 Removal of Front Grille ................150 1.4 Removal of Horizontal Blades and Vertical Blades ......153 1.5 Removal of Electrical Box ..............156 1.6 Removal of PCB...................159 1.7 Removal of Drain Pan Unit ..............165 1.8 Removal of Fan Motor................169...
Page 155: Ft09/13Dv2S, Ft25/35Dvm, Ft25/35Dsg
FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 1. FT09/13DV2S, FT25/35DVM, FT25/35DSG Removal of Air Filter Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Appearance feature Warning Dangerous: High voltage A high voltage is applied to all the electric circuits of this product including...
Page 156 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points 3. Removing the air-purifying filter with photocatalytic deodorizing function The air-purifying filter The air-purifying filter with with photocatalytic photocatalytic deodorizing deodorizing function is function is not marked for Air filter attached to the back of difference between the right the air filter.
Page 157: Removal Of Front Panel
FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Removal of Front Panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the front panel Put your fingers on the right and left projections of the front panel, and open the panel over the...
Page 158 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points Remove the front panel. Caution on Mounting When mounting the front panel, fit the right and left rotary shafts one by one into the grooves and fully push them in position. (R4850) Removal Procedure...
Page 159: Removal Of Front Grille
FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Removal of Front Grille 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 service cover Remove the screw of Preparation the service cover.
Page 160 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points Remove the screw covers (one each at the right and left). (R4321) Remove the screws When installing the indoor (one each at the right unit, drive the screws with and left). the horizontal blades open or removed.
Page 161 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points Put your fingers into the front grille and lift the grille up to unfasten the center hook. (R4325) Unfasten the right hook also by putting your fingers into the grille and lifting it. (R4326) Remove the front grille Caution on Mounting...
Page 162: Removal Of Horizontal Blades And Vertical Blades
Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Removal of Horizontal Blades Vertical Blades 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 horizontal blade (large) Open the horizontal Cautions on Mounting blade (large).
Page 163 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points 2. Removing the horizontal blade (small) Remove the horizontal blade (small) while bending the fixed part at the center slightly. (R4859) Unfasten the left side. Unfasten the key type fixing shaft at the right side.
Page 164 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points 3. Removing the vertical blade Unfasten the hooks at the shaft mounting part by pressing them with a flat screwdriver. Unfasten the hooks at the upper 2 positions. Remove the vertical Six vertical blades are blade toward yourself.
Page 165: Removal Of Electrical Box
FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points The figure shows the Preparation connections of wire Remove the front grille harnesses.
Page 166 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points Remove the connector In case of FT09DV2S, FT25/ of the fan motor [S7]. 35DVM and FT25DSG. Remove the drip proof plate by removing the Put any excess wires behind screw. the power supply lead wire. Replace the heat exchanger thermistor.
Page 167 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points Remove the screw of the electrical box. Release the hook at the upper far side by pressing it from above and pulling the box toward yourself. Lift up the electrical box There is a hook also at the and pull it toward lower part of the back.
Page 168: Removal Of Pcb
Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG 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 shelter The figure shows the Preparation appearance of the Remove the electrical box electrical box.
Page 169 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points 3. Removing the terminal board Dismount the terminal board by removing the screw. 4. Removing the signal receiver unit Remove the signal receiver unit by unfastening the hooks (one each at the right and left).
Page 170 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points Remove the electrical box by sliding it to the left. Disconnect the wire harness. 5. Removing the signal receiver PCB Remove the signal receiver PCB by opening the hooks at 3 positions. Disconnect the connector from the signal receiver PCB.
Page 171 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points 6. Removing the display The figure shows the connection of wire harness for the display PCB. Remove the display PCB by unfastening the 2 hooks. Disconnect the connector from the display PCB. 7. Removing the control PCB Dismount the control PCB by removing the 2 hooks.
Page 172 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points Lift up the bottom of the When mounting the control control PCB and pull it PCB, make sure that it is out. fixed by upper hooks. The figures show the Lead-free solder (PbF) is names of the PCB used for the PCB.
Page 173 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points In case of FT35DSG, Varistor (w/cap) FT13DV2S. [S1] To DC fan motor [S6] To swing motor [S1] [S21] HA connector [S26] To display PCB [S28] To signal receiver PCB Fuse [S32] To heat exchanger (holder type thermistor w/cap)
Page 174: Removal Of Drain Pan Unit
Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Removal of Drain Pan Unit Procedure Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Step Procedure Points 1. Removing the drain pan Preparation unit Remove the electrical box according to the “Removal Lift up the indoor unit of Electrical Box.”...
Page 175 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points Remove the drain pan Caution on Mounting toward yourself from Make sure that the hook at the indoor unit body. the left side is fitted in the groove. 2. Removing the swing motor Remove the screw of the swing motor.
Page 176 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points 3. Removing the crank assembly Remove the screw of the crank assembly. Remove the crank assembly by unfastening the hook. The figure shows the position of the hook when the crank assembly has been removed.
Page 177 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points Remove the drain cap located at the left side of the drain pan unit. Insert the drain hose to the left side. Press the removed Use a 4mm Allen wrench. drain plug into the right side with an Allen Caution wrench (4mm).
Page 178: Removal Of Fan Motor
Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Removal of Fan Motor Procedure Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Step Procedure Points Undo the fan motor Preparation lead wires from the Remove the drain pan unit hooks.
Page 179 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points Unfasten the hook (a) of the fan motor fixing plate with your thumb. Unfasten the hook (c). Remove the fan motor. Removal Procedure...
Page 180: Removal Of Heat Exchanger
Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Removal of Heat Exchanger Procedure Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Step Procedure Points 1. Disconnecting the Preparation refrigerant pipe Remove the drain pan unit according to the “Removal Remove the screws of Drain Pan Unit.”...
Page 181 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points 2. Removing the indoor unit Remove the indoor unit from the installation plate. 3. Removing the heat exchanger Unfasten the hook of the pipe fixing plate at the back of the unit and pull out the pipe.
Page 182 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points After unfastening the When mounting the heat lower hooks, hold up exchanger, make sure that the heat exchanger by the hook (left) is fastened. its left side and lift it up toward yourself. When the left side is lifted, the hook at the right side comes off...
Page 183: Removal Of Fan Rotor
FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 1.10 Removal of Fan Rotor Procedure Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Step Procedure Points 1. Removing the drip proof Preparation plate Remove the heat exchanger according to the “Removal of Heat Exchanger.”...
Page 184 Si01-501 FT09/13DV2S, FT25/35DVM, FT25/35DSG Step Procedure Points Unfasten the hook (a) of the fan motor fixing plate with your thumb and unfasten the hook (b). The fan motor fixing plate can be removed from the unit when the hook (c) is unfastened. 2.
Page 185 FT09/13DV2S, FT25/35DVM, FT25/35DSG Si01-501 Step Procedure Points 3. Removing the bearing Remove the screw of the drip proof plate (left). The drip proof plate can be removed when the hooks at 2 positions are unfastened. Press the rubber-made bearing with force from outside.
Page 186: Ft15Dv2S, Ft50/60Dsg
Si01-501 FT15DV2S, FT50/60DSG 2. FT15DV2S, FT50/60DSG Removal of Air Filter / Front Panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Features When the signal receiver catches a signal from the remote controller, it produces beep sound and...
Page 187 FT15DV2S, FT50/60DSG Si01-501 Step Procedure Points The right and left filters are interchangeable. Insert the air filters along grooves when installing. Set the air filters with displaying “FRONT” on the front side. Insert two claws of the air filter completely. 3.
Page 188 Si01-501 FT15DV2S, FT50/60DSG Step Procedure Points 4. Removing the front panel. While opening the front panel further than it stops, release both axes and remove the front panel. Slide the front panel side to side to release each axis. Align the right and left axes with grooves in turn and insert them to the end when installing.
Page 189: Removal Of Front Grille
FT15DV2S, FT50/60DSG Si01-501 Removal of Front Grille 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 service cover. Loosen the screw and remove the service cover by the knob.
Page 190 Si01-501 FT15DV2S, FT50/60DSG Step Procedure Points Undo the three hooks The front grille has three on the top of the front hooks on the center and the grille. both sides of the upper part. Refer to the removal procedure in a reverse way when reassembling.
Page 191: Removal Of Horizontal Blades / Vertical Blades
FT15DV2S, FT50/60DSG Si01-501 Removal of Horizontal Blades / Vertical Blades 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 horizontal blades. Open the horizontal It has no fixing screws inside blades.
Page 192 Si01-501 FT15DV2S, FT50/60DSG Step Procedure Points 2. Removing the vertical blades. Undo the right and left pivots. Undo the three claws. Pull the vertical blades rightwards and remove Removal Procedure...
Page 193: Removal Of Electrical Box / Pcb / Swing Motor
FT15DV2S, FT50/60DSG Si01-501 Removal of Electrical Box / PCB / Swing Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the front grille. Parts layout 2.
Page 194 Si01-501 FT15DV2S, FT50/60DSG Step Procedure Points 4. Removing the electrical box. Disconnect the four You can remove the connection wirings. electrical parts box without Loosen the screw and detaching the terminal strip remove the terminal board. strip board. Screw: M4×25 Disconnect the connectors for motor...
Page 195 FT15DV2S, FT50/60DSG Si01-501 Step Procedure Points Dislocate the electrical The electrical box has a claw box to the left and undo on its back. the back claw. Pull the electrical box Hook the back claw of the out towards you. electrical box when reassembling.
Page 196 Si01-501 FT15DV2S, FT50/60DSG Step Procedure Points Press the receiver units Release the claws on the down and release the upper side. claws on the upper side, and then undo the claws on the lower side. Cut the clamp. The receiver units Remove the receiver units contain four PCBs.
Page 197 FT15DV2S, FT50/60DSG Si01-501 Step Procedure Points 5. Removing the control PCB. Undo the two claws on the lower side, and then the two claws on the upper side. Remove the control PCB. Control PCB (indoor unit) S1: connector for the fan motor S21: S26: connector for the...
Page 198 Si01-501 FT15DV2S, FT50/60DSG Step Procedure Points 7. Removing the swing motor for vertical blades. ( for FT50/60DSG models only) Release the swing axis Releasing the swing axis on the right side. Loosen the two screws and detach the swing motor assembly.
Page 199: Removal Of Heat Exchanger
FT15DV2S, FT50/60DSG Si01-501 Removal of Heat Exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Removing the electrical Caution box. If gas leaks, repair the spot of 1.
Page 200 Si01-501 FT15DV2S, FT50/60DSG Step Procedure Points 2. Removing the indoor unit. Detach the indoor unit from the installation plate. 3. Removing the piping fixture. Release the claw on the upper side of the piping fixture on the back of the unit. 4.
Page 201 FT15DV2S, FT50/60DSG Si01-501 Step Procedure Points Releasing the claws on the left side. Push the fixing claws on the right side and release. Pull the heat exchanger Caution to the front side and When removing or undo the claws reinstalling heat exchanger, completely, and then lift be sure to wear protective gloves or wrap the heat...
Page 202: Removal Of Fan Rotor / Fan Motor
Si01-501 FT15DV2S, FT50/60DSG Removal of Fan Rotor / Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Removing the right side panel. Loosen the two screws. You can remove the fan rotor without detaching the right side panel.
Page 203 FT15DV2S, FT50/60DSG Si01-501 Step Procedure Points 3. Removing the motor. Remove the fan rotor. Reassembling the fan motor (1) When reassembling the fan rotor, provide as much as 5mm of play between the side face of the rotor and the bottom frame.
Page 204: R25/35Dv1
Si01-501 R25/35DV1 3. R25/35DV1 Removal of Panels Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points stop valve cover can be removed when the fixed screw is removed.
Page 205 R25/35DV1 Si01-501 Step Procedure Points top plate and the front plate constructed in a monoblock. Remove the three screws at the right side and the two screws at the front plate. Remove the three screws at the left side. Remove the one fixed left side plate and the screw in the rear of the...
Page 206: Removal Of Bellmouth And Left Side Plate
Si01-501 R25/35DV1 Removal of Bellmouth and Left Side Plate Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points The bellmouth is Remove the bellmouth, attached with two beginning the front plate screws and four hooks.
Page 207: Removal Of Electrical Device Mounting Plate
R25/35DV1 Si01-501 Removal of Electrical Device Mounting Plate 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 shelter. Remove the three fixed screws for removing the shelter.
Page 208: Removal Of Propeller Fan And Fan Motor
Si01-501 R25/35DV1 Removal of Propeller Fan and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Disconnect the fan motor Remove the external plates connector S70. and the drip proof cover protecting the electric parts.
Page 209: Removal Of Sound Blanket
R25/35DV1 Si01-501 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 1. Removing the right side plate. Remove the three screws for removing the right side plate.
Page 210 Si01-501 R25/35DV1 Step Procedure Points Pull out the body of the sound blanket. Since the slit prepared for the piping on the sound blanket is torn easily, remove the pad carefully. Pull out the body of the When restoring, the sound sound blanket (b).
Page 211: Removal Of Partition Plate
R25/35DV1 Si01-501 Removal of Partition Plate 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 partition plate. Disengage the lead wires from the wire clip. Remove the two screws fixing the partition plate.
Page 212 Si01-501 R25/35DV1 Step Procedure Points When restoring the partition plate, put the hook into the bottom frame. Removal Procedure...
Page 213: Removal Of Compressor
R25/35DV1 Si01-501 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 1. Removing the parts Be careful so as not to burn around the compressor. the compressor terminals or the name plate.
Page 214: R50Dsg
Si01-501 R50DSG 4. R50DSG Removal of Panels Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points To dismount the panel, remove the four mounting screws (A). To dismount the front panel, remove the six mounting screws (B).
Page 215: Removal Of Electrical Box
R50DSG Si01-501 Removal of 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 wire harness connectors from the PCB. Dismount the outdoor air thermistor and the heat exchanger thermistor.
Page 216 Si01-501 R50DSG Step Procedure Points Remove top insulation material from compressor. Terminal code is printed. Do not scorch the indication with the flame of welder. Also record terminal code on a memo paper in case the indication becomes illegible. Remove terminal cover.
Page 217 R50DSG Si01-501 Step Procedure Points Remove the screw. Take off the electrical box. Removal Procedure...
Page 218: Removal Of Compressor
Si01-501 R50DSG 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 Make sure that there is no refrigerant in the unit before disassembling. Pull out sound blanket (side insulation) from right side.
Page 219 R50DSG Si01-501 Step Procedure Points After disconnecting refrigerant pipes, remove three washer nuts that secure compressor in place. Use open-end wrench to remove washer nut (a) located on right front side. Use T-handle box wrench to loosen nuts (b) and (c). Removal Procedure...
Page 220: R60Dsg
Si01-501 R60DSG 5. R60DSG Removal of the Panels and Plates 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 panels and plates. Loosen the four screws and lift the panel.
Page 221 R60DSG Si01-501 Step Procedure Points The front grille has four claws. Slide the discharge grille upwards and remove it. Loosen the six screws of the front panel. Push the front panel and undo the claw. Lift the clamp plate remove it. Removal Procedure...
Page 222 Si01-501 R60DSG Step Procedure Points Undo the right side Lift the front panel and claw, and then the left remove it while pushing the side claws. right side panel inwards. Remove the front panel. Lift the front panel and undo the left side claws.
Page 223 R60DSG Si01-501 Step Procedure Points 2. Removing the stop valve cover. Loosen the screw of the stop valve cover. Pull down the stop valve cover to undo the claws and remove it. The stop valve cover has six claws. (R2687) Removal Procedure...
Page 224: Removal Of The Fan Motor / Propeller Fan
Si01-501 R60DSG Removal of the Fan Motor / Propeller Fan Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Removing the top panel and the front panel. Shelter 1.
Page 225 R60DSG Si01-501 Step Procedure Points 2. Removing the fan motor. Disconnect the connector for fan motor (S70). The illustration shows arrangement of the fan motor lead wire. Removal Procedure...
Page 226 Si01-501 R60DSG Step Procedure Points Unscrew the washer- fitted nut (M10) of the propeller fan with a spanner. Align mark of the propeller fan with D-cut section of the motor shaft when reassembling. Remove the four screws from the motor. Removal Procedure...
Page 227 R60DSG Si01-501 Step Procedure Points Pull the fan motor out. Put the lead wire through the back of the motor when reassembling. (so as not to be entangled with the propeller fan) (R2697) Removal Procedure...
Page 228: Removal Of The Pcb / Electrical Box
Si01-501 R60DSG Removal of the PCB / Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Removing the top panel and the front panel. 1. Removing the right side Terminal strip number panel.
Page 229 R60DSG Si01-501 Step Procedure Points Insert the two claws of the lower part and the one claw of the upper back when Claw reassembling. (R2701) Claws (R2702) 2. Disconnect harnesses. Loosen the fixing screw Service monitor PCB of the cable way board.
Page 230 Si01-501 R60DSG Step Procedure Points Push the claw up to release the cable way board. Open the cable way board. Disconnect the Power supply PCB harnesses from the V3(varistor) HAC1 power supply PCB. (black) ···· to the terminal strip (yellow / green) ···· to the terminal strip (earth) FU1 250V 30A...
Page 231 R60DSG Si01-501 Step Procedure Points Loosen the screw of the control PCB. Undo the two claws and release the control PCB from the ditch of the front side. Disconnect the harnesses while opening the control PCB. S10: to the terminal strip AC2: to the terminal strip...
Page 232 Si01-501 R60DSG Step Procedure Points Disconnect the connectors. S31: to the SPM S32: to the SPM S33: to the MID S71: to the MID S91: fin thermistor Control PCB (outdoor unit) S10: to the terminal strip S20: electronic expansion valve S31: to CN14 of the...
Page 233 R60DSG Si01-501 Step Procedure Points Disconnect the relaying wire connector for the compressor. Release the clamp by pliers. (R2715) Disconnect the reactor harness. Removal Procedure...
Page 234 Si01-501 R60DSG Step Procedure Points Pull the clamp and draw the thermistor harness out from the back of the electrical box. Loosen the screw of the electrical box. Lift the electrical box and remove it. Removal Procedure...
Page 235: Removal Of The Reactor
R60DSG Si01-501 Removal of the Reactor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Removing the electrical box. 1. Removing the partition plate. Release the clamp by pliers.
Page 236 Si01-501 R60DSG Step Procedure Points Lift the partition plate and remove it. Loosen the screw. Slide the reactor remove it from the partition plate. Removal Procedure...
Page 237: Removal Of The Sound Blanket
R60DSG Si01-501 Removal of the Sound Blanket Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Disconnect the harness of each thermistor. Release the discharge Pay attention to the direction pipe thermistor.
Page 238 Si01-501 R60DSG Step Procedure Points Remove the sound Since the piping ports on the blanket (side-outer). sound blanket (side-outer) are torn easily, remove the blanket carefully. Remove the sound blanket (top-upper). Remove the sound blanket (top-lower). Remove the sound Since the piping ports on the blanket (side-inner).
Page 239: Removal Of The Electronic Expansion Valve
R60DSG Si01-501 Removal of the Electronic Expansion Valve Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the electronic expansion valve coil. Remove the sheets of putty.
Page 240: Removal Of The Compressor
Si01-501 R60DSG Removal of the 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. Disconnect the lead Be careful so as not to burn wires of the the compressor terminals or compressor.
Page 241 R60DSG Si01-501 Step Procedure Points Unscrew the nut of the compressor. Remove the putty of the accumulator. Before working, Warning make sure that the Ventilate when refrigerant refrigerant is empty leaks during the work. in the circuit. (If refrigerant contacts fire, it Be sure to apply will cause to arise toxic gas.) nitrogen...
Page 242: Part 8 Others
Si01-501 Part 8 Others 1. Others ....................234 1.1 Test Run from the Remote Controller ..........234 1.2 Jumper Settings ...................235 Others...
Page 243: Others
Others Si01-501 1. Others Test Run from the Remote Controller ARC433 series Select the lowest programmable temperature. Trial operation in cooling mode may be disabled depending on the room temperature. Use the remote control for trial operation as described below. After trial operation is complete, set the temperature to a normal level (26°C to 28°C).
Page 244: Jumper Settings
Si01-501 Others Jumper Settings 1.2.1 When Two Units are Installed in One Room How to set the different addresses. When two indoor units are installed in one room, the two wireless remote controllers can be set for different addresses. PCB in the indoor unit tab(3) FT25/35DVM, FT25/35DSG, FT09/13DV2S Remove the front grille.
Page 245 Others Si01-501 Others...
Page 246: Part 9 Appendix
Si01-501 Part 9 Appendix 1. Piping Diagrams..................238 1.1 Indoor Units ..................238 1.2 Outdoor Units ..................240 2. Wiring Diagrams..................243 2.1 Indoor Units ..................243 2.2 Outdoor Units ..................247 Appendix...
Page 247: Piping Diagrams
Piping Diagrams Si01-501 Piping Diagrams Indoor Units FT25DVM FT35DVM, FT09DV2S, FT25DSG INDOOR UNIT INDOOR UNIT MAFFLER ASSY MAFFLER ASSY HEAT EXCHANGER HEAT EXCHANGER 7.0CuT 7.0CuT 6.4CuT 6.4CuT THERMISTOR THERMISTOR 6.4CuT 6.4CuT ON HEAT EXCH. ON HEAT EXCH. 6.4CuT 6.4CuT CROSSFLOW FAN CROSS FLOW FAN FIELD PIPING FIELD PIPING...
Page 248 Si01-501 Piping Diagrams FT50DSG FT60DSG INDOOR UNIT INDOOR UNIT ( 7.9CuT ) ( 7.9CuT ) HEAT EXCHANGER HEAT EXCHANGER THERMISTOR THERMISTOR ON HEAT ON HEAT EXCH. EXCH. CROSS FLOW FAN CROSS FLOW FAN FIELD PIPING FIELD PIPING ( 6.4CuT ) ( 9.5CuT ) FAN MOTOR FAN MOTOR...
Page 249: Outdoor Units
Piping Diagrams Si01-501 Outdoor Units R25DV1 OUTDOOR UNIT HEAT EXCHANGER 7.9CuT 7.9CuT REFRIGERANT FLOW COOLING CAPILLARY TUBE 7.9CuT 7.9CuT 6.4CuT FIELD PIPING ( 6.4CuT ) 7.9CuT LIQUID STOP VALVE PROPELLER FAN 9.5CuT 9.5CuT FIELD PIPING ( 9.5CuT ) GAS STOP VALVE WITH SERVICE PORT ACCUMULATOR COMPRESSOR...
Page 250 Si01-501 Piping Diagrams R09DV2S, R25DSG R13DV2S, R15DV2S, R35DSG OUTDOOR UNIT OUTDOOR UNIT HEAT EXCHANGER HEAT EXCHANGER LIQUID STOP LIQUID STOP FIELD PIPING VALVE FIELD PIPING VALVE ( 6.4CuT ) ( 6.4CuT ) CAPILLARY TUBE CAPILLARY TUBE FIELD PIPING FIELD PIPING PROPELLER FAN PROPELLER FAN ( 12.7CuT )
Page 251 Piping Diagrams Si01-501 R60DSG OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE THERMISTOR 7.9CuT 7.9CuT 7.9CuT 7.9CuT 12.7CuT CAPILLARY TUBE 1 7.9CuT MUFFLER 7.9CuT WITH 7.9CuT 7.9CuT REFRIGERANT FLOW FILTER CAPILLARY TUBE 2 6.4CuT COOLING 7.9CuT CAPILLARY TUBE 3 7.9CuT HEAT 7.9CuT EXCHANGER CAPILLARY TUBE 4...
Page 252: Wiring Diagrams
Si01-501 Wiring Diagrams Wiring Diagrams Indoor Units FT09DV2S FT13DV2S Appendix...
Page 253 Wiring Diagrams Si01-501 FT15DV2S 3D048588A FT25DVM, FT35DVM FIELD WIRING. PCB3 PCB1 3.15A LED1 OUTDOOR LED2 CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN. t° : RUNNING CAPACITOR t° 140°C : FRAME GROUND : FUSE...
Page 254 Si01-501 Wiring Diagrams FT25DSG FIELD WIRING. PCB1 PCB3 LED1 3.15A LED2 OUTDOOR CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN. t° : RUNNING CAPACITOR 140°C t° : FRAME GROUND : FUSE H1P~H2P : PILOT LAMP...
Page 255 Wiring Diagrams Si01-501 FT50DSG FIELD WIRING. PCB3 PCB1 RECTIFIER 3.15A OUTDOOR t° CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK PCB4 ON AGAIN. LED1 LED2 : FRAME GROUND : FUSE H1~H3 : HARNESS H1P , H2P...
Page 256: Outdoor Units
Si01-501 Wiring Diagrams Outdoor Units R09DV2S R13DV2S Appendix...
Page 257 Wiring Diagrams Si01-501 R15DV2S R25DV1 C11R, C12R : RUNNING CAPACITOR : FUSE : COMPRESSOR RELAY : FAN MOTOR : LIVE Q1CL : OVERCURRENT : NEUTRAL OVERLOAD PROTECTOR : COMPRESSOR MOTOR X1M, X2M : TERMINAL STRIP : THERMAL FUSE : PROTECTIVE EARTH TO INDOOR UNIT C11R 3.15A...
Page 258 Si01-501 Wiring Diagrams R35DV1 C11R , C12R : RUNNING CAPACITOR : FUSE : COMPRESSOR RELAY : FAN MOTOR : LIVE : OVERLOAD PROTECTOR X1M , X2M : TERMINAL STRIP : NEUTRAL : THERMAL FUSE : COMPRESSOR MOTOR : PROTECTIVE EARTH TO INDOOR UNIT C11R 3.15A...
Page 259 Wiring Diagrams Si01-501 R35DSG indoor outdoor C11R 3.15A X11A POWER SUPPLY ~230V50Hz C12R FIELD WIRING. NOTE REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS. C11R, C12R : RUNNING CAPACITOR : SURGE ARRESTER : COMPRESSOR RELAY : FUSE : LIVE : FAN MOTOR : NEUTRAL X1M : TERMINAL STRIP : COMPRESSOR MOTOR...
Page 260 Si01-501 Wiring Diagrams R60DSG PCB2 FU201 3.15A MRM20 HAC1 MRM10 X11A CN11 R12T CN14 3.15A TO INDOOR UNIT t° PCB1 POWERSUPPLY S101 ~50Hz 220-240V ~60Hz 220-230V FIELD WIRING indoor t° t° t° S102 LEDA outdoor (OUTDOOR) (DISCHARGE) (CONDENSER) S2~S102 CONNECTOR Q1L : OVERLOAD PROTECTOR Z1C, Z2C : FERRITE CORE...
Page 261 Wiring Diagrams Si01-501 Appendix...
Page 262: Index
Si01-501 Index Numerics check No.10 ............140 check No.11 ............140 00 .................106 check No.12 ............141 3 minutes stand-by ........29, 38, 43 check No.13 ............141 check No.14 ............142 check No.15 ............142 A1 .................107 check No.16 ............143 A5 .................108 clamp plate ............
Page 263 Si01-501 A6 ............109, 110 HAC1 ............. 18, 221 C4 ..............112 Hall IC ..........23, 33, 109, 110 C9 ..............112 Hall IC check ............143 E5 ..............114 HE1 ............... 18, 221 E6 ..............115 HE2 ............... 18, 221 E7 ..............116 heat exchanger ........171, 190, 211 E8 ..............117 high pressure control in cooling ......
Page 264 Si01-501 ON/OFF button on indoor unit ......29, 38 S27 ............12, 14, 16 opening limit ............47 S28 ..........12, 14, 16, 163, 164 operation lamp ............96 S29 ............12, 14, 16 outdoor air thermistor ........126, 206 S31 ..............18, 223 outdoor heat exchanger thermistor S32 ......
Page 265 Si01-501 top panel ............205, 211 top plate ...............196 troubleshooting .........71, 91, 106 troubleshooting by symptoms ........98 troubleshooting by symptoms air conditioner does not come into cooling though indoor fan is operating.....101, 102 air conditioner does not operate with wireless remote controller.
Page 266 Si01-501 Drawings & Flow Charts Numerics 3-D airflow ..............32 Hall IC check ............143 high pressure control in cooling ......120 ARC433A .............103 automatic air flow control ........23 indoor unit PCB abnormality ....... 107 auto-swing ............22 input current control ..........44 input over current detection .........
Page 267 Si01-501 R50DSG ............241 R50DSG ............250 R60DSG ............242 R60DSG ............251 position sensor abnormality .........122 power supply PCB ..........19 power supply waveforms check ......140 power transistor check .........141 POWERFUL operation ........27 programme dry function ........25 radiation fin temperature rise .......129 remote controller ..........103 service monitor PCB ..........19 signal receiver PCB ........
Page 268 Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion. Use only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or contractor to install those parts and accessories. Use of unauthorized parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage, electrical shock, fire or explosion.

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Daikin D Series Service Manual

Part 1 List of Function

Part 2 Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

Part 4 Details of Functions

Part 5 System Configuration

Part 6 Service Diagnosis

Part 7 Removal Procedure

Part 8 Others

Part 9 Appendix

Index

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Troubleshooting

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