Page 1 SiEN04-306D Inverter Pair Wall Mounted Type B-Series [Applied Models] Inverter Pair : Cooling Only Inverter Pair : Heat Pump Non-Inverter Pair : Cooling Only Non-Inverter Pair : Heat Pump...
Page 2 SiEN04-306D Inverter Pair B-Series Cooling Only Indoor Unit <R410A> FTKS50BVMA FTKS50BVMB FTS50BVMB FTKS60BVMA FTKS60BVMB FTS60BVMB FTKS71BVMA FTKS71BVMB FTKS71BAVMB <R22> FTKD50BVM FTKD50BVMA FTKD50BVMT FTKD18BVMS FTKD60BVM FTKD60BVMA FTKD60BVMT FTKD24BVMS FTKD71BVM FTKD71BVMA FTKD71BVMT FTKD28BVMS Outdoor Unit <R410A> RKS50BVMA RKS50BVMB(9) RKS50B2VMB RS50BVMB RKS60BVMA RKS60BVMB(9) RKS60B2VMB...
Page 3: Table Of Contents
SiEN04-306D 1. Introduction .....................v 1.1 Safety Cautions ..................v Part 1 List of Functions ..............1 1. List of Functions ..................2 1.1 R-410A Series ..................2 1.2 R22 Series....................8 Part 2 Specifications ..............13 1. Specifications ..................14 1.1 Cooling Only - R-410A Series ..............14 1.2 Cooling Only - R22 Series..............18...
Page 4 SiEN04-306D 3.14 Forced Operation Mode .................69 3.15 Additional Function.................69 3.16 Facility Setting Switch (cooling at low outdoor temperature)....70 Part 5 System Configuration............71 1. System Configuration................72 2. Instruction....................73 2.1 Safety Precautions .................73 2.2 Names of Parts..................75 2.3 Preparation before Operation..............78 2.4 AUTO ·...
Page 5 SiEN04-306D Part 7 Removal Procedure ............147 1. Indoor Unit...................148 1.1 Removal of the Air Filter / Front Panel ..........148 1.2 Removal of the Front Grille ..............151 1.3 Removal of the Horizontal Blades / Vertical Blades ......153 1.4 Removal of the Electrical Box / PCB / Swing Motor ......155 1.5 Removal of the Heat Exchanger ............161...
Page 6: Introduction
SiEN04-306D Introduction 1. Introduction Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work. Warnings The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely.
Page 7: Cautions Regarding Products After Repair
Introduction SiEN04-306D 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.
Page 8: Inspection After Repair
SiEN04-306D Introduction Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire.
Page 9: Using Icons
Introduction SiEN04-306D Warning Do not use a joined power cable or extension cable, or share the same power outlet with other electrical appliances, since it can cause an electrical shock, excessive heat generation or fire. Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure.
Page 10: Part 1 List Of Functions
SiEN04-306D Part 1 List of Functions 1. List of Functions ..................2 1.1 R-410A Series ..................2 1.2 R22 Series....................8 List of Functions...
Page 11: List Of Functions
List of Functions SiEN04-306D 1. List of Functions R-410A Series Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — –5 –5 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) —...
Page 12 SiEN04-306D List of Functions Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — -10H –10 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter —...
Page 13 List of Functions SiEN04-306D Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — –10 –10 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter —...
Page 14 SiEN04-306D List of Functions Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — –10 –10 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter —...
Page 15 List of Functions SiEN04-306D Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — –10 –10 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 –15 Function Operation Limit for Heating (°CWB) Photocatalytic Deodorizing Filter —...
Page 16 SiEN04-306D List of Functions Category Functions Category Functions Inverter (with Inverter Power Control) — — Air Purifying Filter with Bacteriostatic, — — –10 –10 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) —...
Page 17: R22 Series
List of Functions SiEN04-306D R22 Series Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — –5 –5 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) —...
Page 18 SiEN04-306D List of Functions Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — — –5 –5 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter —...
Page 19 List of Functions SiEN04-306D Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — Virustatic Functions Operation Limit for Cooling (°CDB) 10~46 Basic Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter — Function Air Purifying Filter with Photocatalytic...
Page 20 SiEN04-306D List of Functions Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — –5 Virustatic Functions Operation Limit for Cooling (°CDB) Basic –15 Function Operation Limit for Heating (°CWB) Photocatalytic Deodorizing Filter — Air Purifying Filter with Photocatalytic...
Page 21 List of Functions SiEN04-306D Category Functions Category Functions Inverter (with Inverter Power Control) Air Purifying Filter with Bacteriostatic, — –5 Virustatic Functions Operation Limit for Cooling (°CDB) Basic Function –15 Operation Limit for Heating (°CWB) Photocatalytic Deodorizing Filter — Air Purifying Filter with Photocatalytic...
Page 22: Part 2 Specifications
SiEN04-306D Part 2 Specifications 1. Specifications ..................14 1.1 Cooling Only - R-410A Series ..............14 1.2 Cooling Only - R22 Series..............18 1.3 Heat Pump - R-410A Series..............22 1.4 Heat Pump - R22 Series ................29 Specifications...
Page 23: Specifications
Specifications SiEN04-306D 1. Specifications Cooling Only - R-410A Series 50Hz 240V Indoor Units FTKS50BVMA FTKS60BVMA FTKS71BVMA Model Outdoor Units RKS50BVMA RKS60BVMA RKS71BVMA 5.0 (0.9~5.8) 6.0 (0.9~6.7) 7.1 (0.9~8.0) Capacity Btu/h 17,070 (3,070~19,800) 20,480 (3,070~22,870) 24,240 (3,070~27,310) Rated (Min.~Max.) kcal/h 4,300 (770~4,990)
Page 24 SiEN04-306D Specifications 50Hz 230V Indoor Units FTKS50BVMB FTKS60BVMB FTKS71BVMB Model Outdoor Units RKS50BVMB(9) RKS60BVMB(9) RKS71BVMB(9) 5.0 (0.9~5.8) 6.0 (0.9~6.7) 7.1 (0.9~8.0) Capacity Btu/h 17,070 (3,070~19,800) 20,480 (3,070~22,870) 24,240 (3,070~27,310) Rated (Min.~Max.) kcal/h 4,300 (770~4,990) 5,160 (770~5,760) 6,110 (770~6,880) Moisture Removal Running Current (Rated) 11.1...
Page 25 Specifications SiEN04-306D 50Hz 230V Indoor Units FTKS50BVMB FTKS60BVMB FTKS71BVMB Model Outdoor Units RKS50B2VMB RKS60B2VMB RKS71B2VMB 5.0 (0.9~5.8) 6.0 (0.9~6.7) 7.1 (0.9~8.0) Capacity Btu/h 17,070 (3,070~19,800) 20,480 (3,070~22,870) 24,240 (3,070~27,310) Rated kcal/h 4,300 (770~4,990) 5,160 (770~5,760) 6,110 (770~6,880) Moisture Removal Running Current (Rated) 11.1...
Page 26 SiEN04-306D Specifications 50Hz 230V Indoor Units FTKS71BAVMB FTS50BVMB FTS60BVMB Model Outdoor Units RKS71B3VMB RS50B(2)VMB RS60B(2)VMB 7.1 (0.9~8.0) Capacity Btu/h 24,240 (3,070~27,310) 17,070 20,480 Rated (Min.~Max.) kcal/h 6,110 (770~6,880) 4,300 5,160 Moisture Removal Running Current (Rated) 11.1 Power Consumption 2,530 (450~3,070)
Page 27: Cooling Only - R22 Series
Specifications SiEN04-306D Cooling Only - R22 Series 50Hz 220-230-240V / 60Hz 220-230V Indoor Units FTKD50BVM FTKD60BVM FTKD71BVM Model Outdoor Units RKD50BVM RKD60BVM RKD71BVM 5.2 (0.9~5.9) 6.2 (0.9~6.5) 7.1 (0.9~7.6) Capacity Btu/h 17,750 (3,070~20,140) 21,170 (3,070~22,190) 24,240 (3,070~25,950) Rated (Min.~Max.) kcal/h...
Page 28 SiEN04-306D Specifications 50Hz 220-230-240V / 60Hz 220-230V Indoor Units FTKD50BVMA FTKD60BVMA FTKD71BVMA Model Outdoor Units RKD50BVMA RKD60BVMA RKD71BVMA 5.2 (0.9~5.9) 6.2 (0.9~7.6) 7.1 (0.9~8.0) Capacity Btu/h 17,750 (3,070~20,140) 21,170 (3,070~22,190) 24,240 (3,070~25,950) Rated (Min.~Max.) kcal/h 4,470 (770~5,070) 5,330 (770~5,590) 6,110 (770~6,540)
Page 29 Specifications SiEN04-306D 60Hz 220V Indoor Units FTKD50BVMT FTKD60BVMT FTKD71BVMT Model Outdoor Units RKD50BVMT RKD60BVMT RKD71BVMT 0.9~5.9 0.9~6.5 0.9~7.6 Cooling Capacity (Min.~Max.) kcal/h 775~5,070 775~5,590 775~6,540 Moisture Removal Running Current 14.0 Power Consumption (Min.~Max.) 450~2,300 460~2,710 470~3,210 Power Factor 99.4 99.0 99.0...
Page 30 SiEN04-306D Specifications 50Hz 220V Indoor Units FTKD18BVMS FTKD24BVMS FTKD28BVMS Model Outdoor Units RKD18BVMS RKD24BVMS RKD28BVMS 5.2 (0.9~5.8) 6.1 (0.9~7.0) 7.5 (0.9~7.8) Capacity Btu/h 17,700 (3,070~19,800) 20,800 (3,070~23,900) 25,600 (3,070~26,600) Rated (Min.~Max.) kcal/h 4,470 (770~4,990) 5,250 (770~6,020) 6,450 (775~6,710) Moisture Removal Running Current (Rated) 13.7...
Page 31: Heat Pump - R-410A Series
Specifications SiEN04-306D Heat Pump - R-410A Series 50Hz 240V Indoor Units FTXS50BVMA FTXS60BVMA Model RXS50BVMA RXS60BVMA Outdoor Units Cooling Heating Cooling Heating 5.0 (0.9~5.8) 5.8 (0.9~7.5) 6.0 (0.9~6.7) 7.0 (0.9~8.0) Capacity Btu/h 17,070 (3,070~19,800) 19,800 (3,070~25,610) 20,480 (3,070~22,870) 23,900 (3,070~27,310) Rated (Min.~Max.)
Page 32 SiEN04-306D Specifications 50Hz 240V Indoor Units FTXS71BVMA Model RXS71BVMA Outdoor Units Cooling Heating 7.1 (0.9~8.0) 8.5 (0.9~9.5) Capacity Btu/h 24,240 (3,070~27,310) 29,020 (3,070~32,430) Rated (Min.~Max.) kcal/h 6,110 (770~6,880) 7,310 (770~8,170) Moisture Removal — Running Current (Rated) 10.6 11.1 Power Consumption...
Page 33 Specifications SiEN04-306D 50Hz 230V Indoor Units FTXS50BVMB FTXS60BVMB Model RXS50B(2)VMB RXS60B(2)VMB Outdoor Units Cooling Heating Cooling Heating 5.0 (0.9~5.8) 5.8 (0.9~7.5) 6.0 (0.9~6.7) 7.0 (0.9~8.0) Capacity Btu/h 17,070 (3,070~19,800) 19,800 (3,070~25,610) 20,480 (3,070~22,870) 23,900 (3,070~27,310) Rated (Min.~Max.) kcal/h 4,300 (770~4,990)
Page 34 SiEN04-306D Specifications 50Hz 230V Indoor Units FTXS71BVMB FTXS71BAVMB Model RXS71B(2)VMB RXS71B3VMB Outdoor Units Cooling Heating Cooling Heating 7.1 (0.9~8.0) 8.5 (0.9~9.5) 7.1 (0.9~8.0) 8.5 (0.9~9.5) Capacity Btu/h 24,240 (3,070~27,310) 29,020 (3,070~32,430) 24,240 (3,070~27,310) 29,020 (3,070~32,430) Rated (Min.~Max.) kcal/h 6,110 (770~6,880)
Page 35 Specifications SiEN04-306D 50Hz 230V Indoor Units ATXS50CVMB Model ARXS50C(2)VMB Outdoor Units Cooling Heating 5.0 (0.9~5.8) 5.8 (0.9~7.5) Capacity Btu/h 17,070 (3,070~19,800) 19,800 (3,070~25,610) Rated (Min.~Max.) kcal/h 4,300 (770~4,990) 4,990 (770~6,450) Moisture Removal — Running Current (Rated) Power Consumption 1,660 (450~2,300) 1,700 (450~2,580) Rated (Min.~Max.)
Page 36 SiEN04-306D Specifications 50Hz 230V Indoor Units ATXS50DVMB Model ARXS50C(2)VMB Outdoor Units Cooling Heating 5.0 (0.9~5.8) 5.8 (0.9~7.5) Capacity Btu/h 17,070 (3,070~19,800) 19,800 (3,070~25,610) Rated (Min.~Max.) kcal/h 4,300 (770~4,990) 4,990 (770~6,450) Moisture Removal — Running Current (Rated) Power Consumption 1,660 (450~2,300) 1,700 (450~2,580) Rated (Min.~Max.)
Page 37 Specifications SiEN04-306D 50Hz 230V Indoor Units FTYS50BVMB FTYS60BVMB Model RYS50B(2)VMB RYS60B(2)VMB Outdoor Units Cooling Heating Cooling Heating Capacity Btu/h 17,070 19,800 20,480 23,900 Rated kcal/h 4,300 4,990 5,160 6,020 Moisture Removal — — Running Current (Rated) Power Consumption 1,660 1,700...
Page 38: Heat Pump - R22 Series
SiEN04-306D Specifications Heat Pump - R22 Series 50Hz 220-230-240V / 60Hz 220-230V Indoor Units FTXD50BVMA FTXD60BVMA Model RXD50BVMA RXD60BVMA Outdoor Units Cooling Heating Cooling Heating 5.2 (0.9~5.9) 6.5 (0.9~8.0) 6.2 (0.9~7.6) 7.2 (0.9~9.0) Capacity Btu/h 17,750 (3,070~20,140) 22,190 (3,070~27,310) 21,170 (3,070~25,950) 24,580 (3,070~30,730) Rated (Min.~Max.)
Page 39 Specifications SiEN04-306D 50Hz 220-230-240V / 60Hz 220-230V Indoor Units FTXD71BVMA Model RXD71BVMA Outdoor Units Cooling Heating 7.1 (0.9~8.0) 8.5 (0.9~9.7) Capacity Btu/h 24,240 (3,070~27,310) 29,020 (3,070~33,120) Rated (Min.~Max.) kcal/h 6,110 (770~6,880) 7,310 (770~8,340) Moisture Removal — Running Current (Rated) 11.9-11.4-10.9/11.9-11.4 11.8-11.3-10.9/11.8-11.3...
Page 40 SiEN04-306D Specifications 60Hz 220V Indoor Units FTXD50BVMT FTXD60BVMT Model RXD50BVMT RXD60BVMT Outdoor Units Cooling Heating Cooling Heating 0.9~5.9 0.9~8.0 0.9~6.5 0.9~8.1 Capacity (Min.~Max.) kcal/h 775~5,070 775~6,880 775~5,590 775~6,970 Moisture Removal — — Running Current 8.00 9.10 9.60 9.60 Power Consumption (Min.~Max.)
Page 41 Specifications SiEN04-306D 60Hz 220V Indoor Units FTXD71BVMT Model RXD71BVMT Outdoor Units Cooling Heating 0.9~7.6 0.9~9.0 Capacity (Min.~Max.) kcal/h 775~6,540 775~7,740 Moisture Removal — Running Current 14.0 12.6 Power Consumption (Min.~Max.) 470~3,210 470~3,600 Power Factor 99.0 99.2 2.48 3.09 φ 9.5...
Page 42 SiEN04-306D Specifications 50Hz 240V Indoor Unit FTXD50BV4 Model RXD50BV4 Outdoor Unit Cooling Heating 4.8 (0.9~5.2) 6.0 (0.9~7.3) Capacity Btu/h 16,390 (3,070~17,750) 20,480 (3,070~24,920) Rated (Min.~Max.) kcal/h 4,130 (770~4,470) 5,160 (770~6,280) Moisture Removal — Running Current (Rated) Power Consumption 1,740 (450~1,950) 1,950 (450~2,300) Rated (Min.~Max.)
Page 43 Specifications SiEN04-306D 50Hz 240V Indoor Units FTXD80CV4 Model RXD80CV4 Outdoor Units Cooling Heating 8.0(0.9~8.5) 9.5 (0.9~10.2) Capacity Btu/h 27,310 (3,070~29,000) 32,420 (3,070~34,820) Rated (Min.~Max.) kcal/h 6,880 (770~7,310) 8,180 (770~8,780) Moisture Removal — Running Current (Rated) 13.9 14.0 Power Consumption 3,300 (450~3,950) 3,320 (450~3,490) Rated (Min.~Max.)
Page 44 SiEN04-306D Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram........36 1.1 Indoor Unit....................36 1.2 Outdoor Unit ...................38 Printed Circuit Board Connector Wiring Diagram...
Page 45: Part 3 Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram SiEN04-306D 1. Printed Circuit Board Connector Wiring Diagram Indoor Unit Connectors 1) S1 Connector for fan motor 2) S6 Connector for swing motor (horizontal blades) 3) S8 Connector for swing motor (vertical blades) 4) S21...
Page 46 SiEN04-306D Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB (indoor unit) LEDA (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: Outdoor Unit
Printed Circuit Board Connector Wiring Diagram SiEN04-306D Outdoor Unit Connectors 1) S10, AC2, HL Connector for terminal strip 2) S20 Connector for electronic expansion valve coil 3) S31, S32 Connector for SPM 4) S33, S71 Connector for MID 5) S34, S52, S72, S102...
Page 48 SiEN04-306D Printed Circuit Board Connector Wiring Diagram PCB Detail PCB(1): Control PCB (outdoor unit) FU2(3.15A) S101 (R2865) PCB(2): Power Supply PCB PCB(3): Service Monitor PCB FU1(30A) HAC1 LED A S102 (R5140) (R2866) Printed Circuit Board Connector Wiring Diagram...
Page 49 Printed Circuit Board Connector Wiring Diagram SiEN04-306D FU201 (3.15A) (R2868) CN11 CN14 (R2869) Printed Circuit Board Connector Wiring Diagram...
Page 50: Main Functions
SiEN04-306D Part 4 Function and Control 1. Main Functions..................42 1.1 Frequency Principle................42 1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..44 1.3 Fan Speed Control for Indoor Units............45 1.4 Programme Dry Function ...............46 1.5 Automatic Operation................47 1.6 Thermostat Control.................48 1.7 Night Set Mode..................49...
Page 51 SiEN04-306D Part 5 System Configuration 1. System Configuration................72 2. Instruction....................73 2.1 Safety Precautions .................73 2.2 Names of Parts..................75 2.3 Preparation before Operation..............78 2.4 AUTO · DRY · COOL · HEAT · FAN Operation ........81 2.5 Adjusting the Air Flow Direction .............83 2.6 POWERFUL Operation ................85...
Page 52: Part 4 Function And Control
Main Functions SiEN04-306D 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:...
Page 53: Main Functions
SiEN04-306D Main Functions Inverter Features The inverter provides the following features: The regulating capacity can be changed according to the changes in the outside 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 54: Power-Airflow Dual Flaps, Wide Angle Louvers And Auto-Swing
Main Functions SiEN04-306D 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 55: Fan Speed Control For Indoor Units
SiEN04-306D 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.
Page 56: Programme Dry Function
Main Functions SiEN04-306D 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.
Page 57: Automatic Operation
SiEN04-306D Main Functions Automatic Operation Automatic Cooling / Heating Function (Heat Pump Only) When the AUTO mode is selected with the remote control, 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 58: Thermostat Control
Main Functions SiEN04-306D 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.
Page 59: Night Set Mode
SiEN04-306D 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...
Page 60: Intelligent Eye
Main Functions SiEN04-306D INTELLIGENT EYE This is the function that detects existence of humans in the room by a human motion sensor (INTELLIGENT EYE) and reduces the capacity when there is no human in the room in order to save electricity.
Page 61 SiEN04-306D Main Functions 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 62: Home Leave Operation
Main Functions SiEN04-306D 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 63: Inverter Powerful Operation
SiEN04-306D Main Functions 1.10 Inverter POWERFUL Operation Outline In order to exploit the cooling and heating capacity to full extent, operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency. Details of the When POWERFUL button is pushed in each operation mode, the fan speed/setting temperature Control will be converted to the following states in a period of twenty minutes.
Page 64: Other Functions
Main Functions SiEN04-306D 1.11 Other Functions 1.11.1 Hot Start Function Heat Pump Only In order to prevent the cold air blast that normally comes when heating is started, the temperature of the heat exchanger of the indoor unit is detected, and either the air flow is stopped or is made very weak thereby carrying out comfortable heating of the room.
Page 65: Function Of Main Structural Parts
SiEN04-306D Function of Main Structural Parts 2. Function of Main Structural Parts Function of Thermistor 2.1.1 Heat Pump Model Electronic expansion valve Four way valve Compressor (R5318) A Outdoor Heat 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature.
Page 66: Cooling Only Model
Function of Main Structural Parts SiEN04-306D 2.1.2 Cooling Only Model Electrontic expansion valve Compressor (R2828) Outdoor Heat 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature. Exchanger Set a target discharge temperature depending on the outdoor and indoor heat exchanger temperature.
Page 67: Control Specification
SiEN04-306D Control Specification 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)
Page 68: Frequency Control
Control Specification SiEN04-306D 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 control.)
Page 69 SiEN04-306D Control Specification 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. 4. Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency.
Page 70: Compressor Protection Function
Control Specification SiEN04-306D 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. Detail Preheating ON Condition When outdoor air temperature is below 10.5°C and discharge pipe temperature is below...
Page 71: Discharge Pipe Temperature Control
SiEN04-306D Control Specification 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.
Page 72: Freeze-Up Protection Control
Control Specification SiEN04-306D 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.
Page 73: Fan Control
SiEN04-306D Control Specification Fan Control Outline Fan control is carried out according to the following priority. 1. Fan ON control for electric component cooling fan 2. Fan control when defrosting 3. Fan OFF delay when stopped 4. ON/OFF control in cooling operation 5.
Page 74: Low Hz High Pressure Limit
Control Specification SiEN04-306D 3.10 Low Hz High Pressure Limit Outline Heat Pump Only Set the upper limit of high pressure in a low Hz zone. Set the upper limit of the indoor heat exchanger temperature by its operating frequency of Hz. Separate into three zones, reset zone, unchanged zone and drooping zone and the frequency control must be carried out in such zones.
Page 75: Electronic Expansion Valve Control
SiEN04-306D Control Specification 3.12 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 Open Control 1.
Page 76 Control Specification SiEN04-306D 3.12.1 Fully Closing with Power ON Initialize the electronic expansion valve when turning on the power, set the opening position and develop pressure equalizing. 3.12.2 Pressure Equalization Control When the compressor is stopped, open and close the electronic expansion valve and develop pressure equalization.
Page 77 SiEN04-306D Control Specification 3.12.7 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 78: Malfunctions
Control Specification SiEN04-306D 3.13 Malfunctions 3.13.1 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. Outside air thermistor Relating to CT Malfunction When the output frequency is more than 55 Hz and the input current is less than 1.25A, carry...
Page 79: Forced Operation Mode
SiEN04-306D Control Specification 3.14 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. 2) The operating mode of the outdoor unit is the stop mode.
Page 80: Facility Setting Switch (Cooling At Low Outdoor Temperature)
Control Specification SiEN04-306D 3.16 Facility Setting Switch (cooling at low outdoor temperature) Outline RKS50/60/71BVMB9, RK(X)S71B2(3)VMB models This function is limited only for facilities (the target of air conditioning is equipment (such as computer)). Never use it in a residence or office (the space where there is a human).
Page 81: Part 5 System Configuration
System Configuration SiEN04-306D 3. 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 (or heating) well, and to know a clever method of using it.
Page 82: Instruction
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 83: Installation Site
Instruction SiEN04-306D • To avoid oxygen deficiency, ventilate the room sufficiently if equipment with burner is used together with the air conditioner. • Before cleaning, be sure to stop the operation, turn the breaker off or pull out the supply cord.
Page 84: Names Of Parts
SiEN04-306D Instruction Names of Parts Indoor Unit the illustration shows a 50-class unit Main unit control panel System Configuration...
Page 85 Instruction SiEN04-306D Outdoor Unit Indoor Unit 1. Air filter 14. Indoor Unit ON/OFF switch: 2. Air-Purifying Filter with photocatalytic • Push this switch once to start operation. deodorizing function Push once again to stop it. • These filters are attached to the inside of •...
Page 86: Remote Control
SiEN04-306D Instruction Remote control <ARC433A21, A22> 1. Signal transmitter: 8. SILENT button: • It sends signals to the indoor unit. OUTDOOR UNIT SILENT operation (page 15) 2. Display: 9. FAN setting button: • It displays the current settings. (In this •...
Page 87: Preparation Before Operation
Instruction SiEN04-306D Preparation Before Operation To set the batteries 1. Slide the front cover to take it off. Position + and – correctly! 2. Set two dry batteries (AAA). 3. Set the front cover as before. ATTENTION About batteries •...
Page 88 SiEN04-306D Instruction To operate the remote control • To use the remote control, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote control, such as a curtain, the unit will not operate.
Page 89: To Set The Clock
Instruction SiEN04-306D To set the clock 1. Press “CLOCK button”. 0:00 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.
Page 90: Auto · Dry · Cool · Heat · Fan Operation
SiEN04-306D Instruction AUTO · DRY · COOL · HEAT · FAN Operation The air conditioner operates with the operation mode of your choice. From the next time on, the air conditioner will operate with the same operation mode. To start operation 1.
Page 91: To Change The Air Flow Rate Setting
Instruction SiEN04-306D 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 92: Adjusting The Air Flow Direction
SiEN04-306D Instruction 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 2. When the flaps have reached the desired position, press “SWING button...
Page 93 Instruction SiEN04-306D 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 94: Powerful Operation
SiEN04-306D Instruction 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...
Page 95: Outdoor Unit Silent Operation
Instruction SiEN04-306D OUTDOOR UNIT SILENT Operation OUTDOOR UNIT SILENT operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during night. To start OUTDOOR UNIT SILENT operation 1.
Page 96: Home Leave Operation
SiEN04-306D Instruction HOME LEAVE Operation HOME LEAVE operation is a function which allows you to record your preferred temperature and air flow rate settings. To start HOME LEAVE operation 1. Press “HOME LEAVE button”. • The HOME LEAVE lamp lights up.
Page 97 Instruction SiEN04-306D What’s the HOME LEAVE operation Is there a set temperature and air flow rate which is most comfortable, a set temperature and air flow rate which you use the most? HOME LEAVE operation is a function that allows you to record your favorite set temperature and air flow rate.
Page 98: Intelligent Eye Operation
SiEN04-306D Instruction INTELLIGENT EYE Operation “INTELLIGENT EYE” is the infrared sensor which detects the human movement. To start INTELLIGENT EYE operation 1. Press “SENSOR button”. To cancel the INTELLIGENT EYE operation 2. Press “SENSOR button” again. [EX.] When somebody in the room...
Page 99 Instruction SiEN04-306D “INTELLIGENT EYE” is useful for Energy Saving Energy saving operation • Change the temperature –2°C in heating / +2°C in cooling / +1°C in dry mode from set temperature. • Decrease the air flow rate slightly in fan operation. (In FAN mode only) Notes on “INTELLIGENT EYE”...
Page 100: Timer Operation
SiEN04-306D Instruction 4.10 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 101: To Use On Timer Operation
Instruction SiEN04-306D 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”. • 6:00 is displayed. • “ “blinks. 2. 2.Press “TIMER Setting button” until the time setting reaches the point you like.
Page 102: Care And Cleaning
SiEN04-306D Instruction 4.11 Care and cleaning CAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF. UNITS Indoor unit, Outdoor unit and Remote control 1. Wipe them with dry soft cloth. Front grille 1. Open the front grille.
Page 103: Air Filter
Instruction SiEN04-306D FILTERS 1. Open the front panel. (page 24) 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...
Page 104: Before A Long Idle Period
SiEN04-306D 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 105: Troubleshooting
Instruction SiEN04-306D 4.12 Troubleshooting 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 106: Check Again
SiEN04-306D Instruction Check again Please check again before calling a repair person. Case Check The air conditioner does not operate. • Hasn’t a breaker turned OFF or a fuse blown? (OPERATION lamp is off) • Isn’t it a power failure? •...
Page 107 Instruction SiEN04-306D 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.
Page 108 SiEN04-306D Instruction Fault diagnosis by remote control. In the ARC433A series, the temperature display sections on the main unit indicate corresponding codes. 1. When the TIMER CANCEL button is held down for 5 seconds, a “00” indication flashes on the temperature display section.
Page 109 Instruction SiEN04-306D System Configuration...
Page 110 SiEN04-306D Part 6 Service Diagnosis 1. Caution for Diagnosis................102 2. Problem Symptoms and Measures .............103 3. Service Check Function ..............104 4. Troubleshooting ..................107 4.1 Error Codes and Description ..............107 4.2 Indoor Unit PCB Abnormality ...............108 4.3 Freeze-up Protection Control or High Pressure Control.......109 4.4 Fan Motor (DC Motor) or Related Abnormality........111...
Page 111: Part 6 Service Diagnosis
Caution for Diagnosis SiEN04-306D 1. Caution for Diagnosis 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 112: Problem Symptoms And Measures
SiEN04-306D Problem Symptoms and Measures 2. Problem Symptoms and Measures Symptom Check Item Details of Measure Reference Page 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 113: Service Check Function
Service Check Function SiEN04-306D 3. Service Check Function In the ARC433A series remote control, 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 114 SiEN04-306D Service Check Function Check Method 2 1. Enter the diagnosis mode. s ,TEMP t , MODE) simultaneously. Press the 3 buttons (TEMP (R4272) The digit of the number of tens blinks. HTry again from the start when the digit does not blink.
Page 115 Service Check Function SiEN04-306D 5. Press the TEMP button. s or TEMP t and change the digit until you hear the sound of “beep”. Press TEMP (R4277) 6. Diagnose by the sound. H“pi” : The both numbers of tens and units do not accord with the error code.
Page 116: Troubleshooting
SiEN04-306D Troubleshooting 4. Troubleshooting Error Codes and Description Referenc 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 or high pressure control...
Page 117: Indoor Unit Pcb Abnormality
Troubleshooting SiEN04-306D Indoor Unit PCB Abnormality remote control 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...
Page 118: Freeze-Up Protection Control Or High Pressure Control
SiEN04-306D Troubleshooting Freeze-up Protection Control or High Pressure Control remote control Display Method of High pressure control (heat pump model only) During heating operations, the temperature detected by the indoor heat exchanger Malfunction thermistor is used for the high pressure control (stop, outdoor fan stop, etc.)
Page 119 Troubleshooting SiEN04-306D Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.6 Check the air passage. Refer to P.141 Is there any Provide sufficient air passage. short-circuit? Check the intake air filter.
Page 120: Fan Motor (Dc Motor) Or Related Abnormality
SiEN04-306D Troubleshooting Fan Motor (DC Motor) or Related Abnormality remote control Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Malfunction abnormal fan motor operation. Detection Malfunction When the detected rotation speed does not reach the demanded rotation speed of the target Decision tap, and is less than 50% of the maximum fan motor rotation speed.
Page 121 Troubleshooting SiEN04-306D 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.139 and rotate fan by hand. Does fan rotate Replace fan motor.
Page 122: Thermistor Or Related Abnormality (Indoor Unit)
SiEN04-306D Troubleshooting Thermistor or Related Abnormality (Indoor Unit) C4, C9 remote control 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 Decision operation∗.
Page 123: Signal Transmission Error (Between Indoor And Outdoor Units)
Troubleshooting SiEN04-306D Signal Transmission Error (between Indoor and Outdoor Units) remote control Display Method of The data received from the outdoor unit in indoor unit-outdoor unit signal transmission is Malfunction checked whether it is normal. Detection Malfunction When the data sent from the outdoor unit cannot be received normally, or when the content of Decision the data is abnormal.
Page 124: Ol Activation (Compressor Overload)
SiEN04-306D Troubleshooting OL Activation (Compressor Overload) remote control 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. Decision The error counter will reset itself if this or any other error does not occur during the following 60-minute compressor running time (total time).
Page 125: Compressor Lock
Troubleshooting SiEN04-306D Compressor Lock remote control 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 Decision or a frequency of above 160 Hz.
Page 126: Dc Fan Lock
SiEN04-306D Troubleshooting DC Fan Lock remote control 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.
Page 127: Input Over Current Detection
Troubleshooting SiEN04-306D 4.10 Input Over Current Detection remote control 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.
Page 128 SiEN04-306D Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.7 ∗ 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.142...
Page 129: Four Way Valve Abnormality
Troubleshooting SiEN04-306D 4.11 Four Way Valve Abnormality remote control Display Method of The room temperature thermistor, the indoor unit heat exchanger thermistor, the outdoor Malfunction temperature thermistor and the outdoor unit heat exchanger thermistor are checked to see if they function within their normal ranges in the operating mode.
Page 130 SiEN04-306D Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.5 Refer to P.140 Four way valve coil Correct. disconnected (loose)? Check No.6 Refer to P.141 Harness out of connector? Reconnect.
Page 131: Discharge Pipe Temperature Control
Troubleshooting SiEN04-306D 4.12 Discharge Pipe Temperature Control remote control 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 Decision system will be shut down.
Page 132: High Pressure Control In Cooling
SiEN04-306D Troubleshooting 4.13 High Pressure Control in Cooling remote control 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...
Page 133 Troubleshooting SiEN04-306D Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.4 Check the installation space. Refer to P.139 Check No.7 Abnormal Check No.6 Installation condition Change the air outlet grille check position.
Page 134: Position Sensor Abnormality
SiEN04-306D Troubleshooting 4.14 Position Sensor Abnormality remote control 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 Decision is sent.
Page 135: Ct Or Related Abnormality
Troubleshooting SiEN04-306D 4.15 CT or Related Abnormality remote control 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.
Page 136 SiEN04-306D 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.145 again. Get the system started.
Page 137: Thermistor Or Related Abnormality (Outdoor Unit)
Troubleshooting SiEN04-306D 4.16 Thermistor or Related Abnormality (Outdoor Unit) P4, J3, J6, H9 remote control 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.]...
Page 138 SiEN04-306D Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.6 Turn on the power again. Refer to P.141 Error displayed again Reconnect. on remote controller? Connector or thermistor Reconnect.
Page 139: Electrical Box Temperature Rise
Troubleshooting SiEN04-306D 4.17 Electrical Box Temperature Rise remote control 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 80°C (above 75°C in the case of Decision 7.1kW class).
Page 140 SiEN04-306D Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.6 WARNING Turn off the power and turn it on Refer to P.141 again. To cool down the electricals, the...
Page 141: Radiation Fin Temperature Rise
Troubleshooting SiEN04-306D 4.18 Radiation Fin Temperature Rise remote control 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,...
Page 142 SiEN04-306D Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.6 Turn off the power and turn it on Refer to P.141 again to get the system started.
Page 143: Output Over Current Detection
Troubleshooting SiEN04-306D 4.19 Output Over Current Detection remote control 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.
Page 144 SiEN04-306D Troubleshooting 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.7 reconnected for part replacement, for example, and the system is interrupted by an output over-current, take the following procedure.
Page 145: Insufficient Gas
Troubleshooting SiEN04-306D 4.20 Insufficient Gas remote control Display Method of Gas shortage detection I : A gas shortage is detected by checking the CT-detected input current Malfunction value and the compressor running frequency. Gas shortage detection II : A gas shortage is detected by checking the difference between...
Page 146 SiEN04-306D Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.4 Refer to P.139 Any thermistor Reconnect in position. disconnected? * Discharge pipe thermistor * Indoor / outdoor unit heat exchanger thermistor * Room temperature thermistor Check No.6...
Page 147: Low-Voltage Detection
Troubleshooting SiEN04-306D 4.21 Low-voltage Detection remote control 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...
Page 148: Check
SiEN04-306D Check 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).
Page 149: Four Way Valve Performance Check
Check SiEN04-306D 5.1.3 Four Way Valve Performance Check Check No.5 Turn off the power and turn it on again. ∗ Four way valve coil Cooling / dry : No continuity Start the heating-mode run. Heating : Continuity S80 voltage at DC 180-220 V with...
Page 150: Thermistor Resistance Check
SiEN04-306D Check 5.1.4 Thermistor Resistance Check Check No.6 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 151: Installation Condition Check
Check SiEN04-306D 5.1.5 Installation Condition Check Check No.7 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...
Page 152: Discharge Pressure Check
SiEN04-306D Check 5.1.6 Discharge Pressure Check Check No.8 Discharge pressure check High Replace compessor. Open the stop valve. Is the stop valve open? Is the Replace the pipe installed at connection pipe deformed? the site. At the heat exchanger and Clean.
Page 153: Power Supply Waveforms Check
Check SiEN04-306D 5.1.8 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).
Page 154: Capacitor Voltage Check
SiEN04-306D Check 5.1.10 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 155: Main Circuit Electrolytic Capacitor Check
Check SiEN04-306D 5.1.12 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 156 SiEN04-306D Part 7 Removal Procedure 1. Indoor Unit...................148 1.1 Removal of the Air Filter / Front Panel ..........148 1.2 Removal of the Front Grille ..............151 1.3 Removal of the Horizontal Blades / Vertical Blades ......153 1.4 Removal of the Electrical Box / PCB / Swing Motor ......155 1.5 Removal of the Heat Exchanger ............161...
Page 157: Indoor Unit
Indoor Unit SiEN04-306D 1. Indoor Unit Removal of the Air Filter / Front Panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Features Room temperature sensor...
Page 158 SiEN04-306D Indoor Unit 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.
Page 159 Indoor Unit SiEN04-306D Step Procedure Points 4. Remove 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...
Page 160: Removal Of The Front Grille
SiEN04-306D Indoor Unit Removal of the 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. Remove the service cover. Loosen the screw and remove the service cover by the knob.
Page 161 Indoor Unit SiEN04-306D Step Procedure Points Undo the three hooks The front grille has three on the top of the front hooks on the center and the Hook grille. both sides of the upper part. Refer to the removal procedure in a reverse way when reassembling.
Page 162: Removal Of The Horizontal Blades / Vertical Blades
SiEN04-306D Indoor Unit Removal of the 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. Remove the horizontal blades. Open the horizontal It has no fixing screws inside blades.
Page 163 Indoor Unit SiEN04-306D Step Procedure Points 2. Remove the vertical blades. Undo the right and left pivots. Vertical blades (R2767) Undo the three claws. Claws (R2768) Pull the vertical blades rightwards and remove Removal Procedure...
Page 164: Removal Of The Electrical Box / Pcb / Swing Motor
SiEN04-306D Indoor Unit Removal of the 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. Remove the front grille.
Page 165 Indoor Unit SiEN04-306D Step Procedure Points 4. Remove the electrical box. Disconnect the four You can remove the connection wirings. electrical box without Terminal strip board Loosen the screw and detaching the terminal strip remove the terminal board. strip board.
Page 166 SiEN04-306D Indoor Unit 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.
Page 167 Indoor Unit SiEN04-306D 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. Receiver units (R2781) Cut the clamp.
Page 168 SiEN04-306D Indoor Unit Step Procedure Points 5. Remove the control PCB. Undo the two claws on the lower side, and then the two claws on the Upper claws upper side. Remove the control PCB. Control PCB Lower claws (R2783) Control PCB (indoor...
Page 169 Indoor Unit SiEN04-306D Step Procedure Points 7. Remove the swing motor for vertical blades. Release the swing axis Releasing the swing axis on the right side. (1)Undo the claw (2)Pull it out (R2790) Loosen the two screws and detach the swing motor assembly.
Page 170: Removal Of The Heat Exchanger
SiEN04-306D Indoor Unit Removal of the Heat Exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the electrical Caution box. If gas leaks, repair the spot of 1.
Page 171 Indoor Unit SiEN04-306D Step Procedure Points 2. Remove the indoor unit. Detach the indoor unit from the installation plate. 3. Remove the piping fixture. Release the claw on the upper side of the piping fixture on the back of the unit.
Page 172 SiEN04-306D Indoor Unit Step Procedure Points Release the claws on the left side. Claws (R2800) Push the fixing claws on the right side and release. Claws (R2801) Pull the heat exchanger Caution to the front side and Heat exchanger When removing or...
Page 173: Removal Of The Fan Rotor / Fan Motor
Indoor Unit SiEN04-306D Removal of the 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. Remove the right side panel. Loosen the two screws.
Page 174 SiEN04-306D Indoor Unit Step Procedure Points 3. Remove the fan motor. Remove the fan motor. 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 175: Outdoor Unit
Outdoor Unit SiEN04-306D 2. Outdoor Unit 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. Procedure Points Step 1. Remove the panels and plates.
Page 176 SiEN04-306D Outdoor Unit 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. Front panel (R2680) Push the front panel and undo the claw. Lift the clamp plate and Clamp plate remove it.
Page 177 Outdoor Unit SiEN04-306D 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 178 SiEN04-306D Outdoor Unit Step Procedure Points 2. Remove the stop valve cover. Loosen the screw of the stop valve cover. Stop valve cover (R2685) Pull down the stop valve cover to undo the claws and remove it. The stop valve cover has six claws.
Page 179: Removal Of The Fan Motor / Propeller Fan
Outdoor Unit SiEN04-306D 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 Remove the top panel and the front panel.
Page 180 SiEN04-306D Outdoor Unit Step Procedure Points 2. Remove the fan motor. Disconnect the connector for fan motor (S70). (R2692) The illustration shows arrangement of the fan motor lead wire. Fan motor lead wire (R2693) Removal Procedure...
Page 181 Outdoor Unit SiEN04-306D Step Procedure Points Unscrew the washer- fitted nut (M10) of the propeller fan with a spanner. Propeller fan (R2694) Align mark of the propeller fan with D-cut section of the motor shaft when reassembling. Remove the four screws from the fan motor.
Page 182 SiEN04-306D Outdoor Unit 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 183: Removal Of The Pcb / Electrical Box
Outdoor Unit SiEN04-306D 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 Remove the top panel and the front panel.
Page 184 SiEN04-306D Outdoor Unit Step Procedure Points the t Claw reassembling. (R2701) Claws (R2702) 2. Disconnect harnesses. Loosen the fixing screw Service monitor PCB of the cable way board. LED A (Green) Cable way board LEDA(Green) Service monitor PCB A B C...
Page 185 Outdoor Unit SiEN04-306D 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. HL (black) ···· to the terminal strip HE2 (yellow / green) ····...
Page 186 SiEN04-306D Outdoor Unit Step Procedure Points Loosen the screw of the control PCB. Control PCB Undo the two claws and release the control PCB from the ditch of the front side. Ditch (R2703) Disconnect the harnesses while AC2(white) opening the control PCB.
Page 187 Outdoor Unit SiEN04-306D 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 (R2712) H2(blue) H1(yellow) Control PCB (outdoor unit) S10: to the terminal 3.15A, 250V...
Page 188 SiEN04-306D Outdoor Unit Step Procedure Points Disconnect the relaying wire connector for the compressor. Release the clamp by pliers. (R2715) Disconnect the reactor harness. Removal Procedure...
Page 189 Outdoor Unit SiEN04-306D 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. Removal Procedure...
Page 190 SiEN04-306D Outdoor Unit Step Procedure Points Release the clamp of the four way valve harness. (R2720) Lift the electrical box and remove it. Electrical box (R2721) Removal Procedure...
Page 191: Removal Of The Reactor
Outdoor Unit SiEN04-306D 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 Remove the electrical box. 1. Remove the partition plate. Release the clamp by pliers.
Page 192 SiEN04-306D Outdoor Unit Step Procedure Points Lift the partition plate and remove it. Loosen the screw. Slide the reactor and remove it from the partition plate. Reactor (R2726) Removal Procedure...
Page 193: Removal Of The Sound Blanket
Outdoor Unit SiEN04-306D 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 194 SiEN04-306D Outdoor Unit Step Procedure Points Remove the sound Since the piping ports on the blanket (side-outer). sound blanket (side-outer) Sound blanket are torn easily, remove the (side-outer) blanket carefully. (R2730) Remove the sound blanket (top-upper). Sound blanket (top-upper) (R2731)
Page 195: Removal Of The Four Way Valve
Outdoor Unit SiEN04-306D Removal of the Four Way Valve Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Loosen the screw of the Provide a protective sheet or four way valve coil.
Page 196: Removal Of The Electronic Expansion Valve
SiEN04-306D Outdoor Unit 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. Electronic expansion valve coil...
Page 197: Removal Of The Compressor
Outdoor Unit SiEN04-306D 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. Terminal cover (R2741) Disconnect the lead Be careful so as not to burn...
Page 198 SiEN04-306D Outdoor Unit Step Procedure Points Unscrew the nut of the compressor. Accumulator Compressor Remove the putty of the accumulator. (R2743) Before working, Warning make sure that the Ventilate when refrigerant refrigerant is empty leaks during the work. in the circuit.
Page 199 Outdoor Unit SiEN04-306D Removal Procedure...
Page 200: Part 8 Others
SiEN04-306D Part 8 Others 1. Others ....................192 1.1 Test Run from the remote control............192 1.2 Jumper Settings ...................193 Others...
Page 201: Others
Others SiEN04-306D 1. Others Test Run from the remote control 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.
Page 202: Jumper Settings
SiEN04-306D 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 infrared remote controls can be set for different addresses. How to set the different addresses Control PCB of the indoor unit (1) Remove the front grille.
Page 203 Others SiEN04-306D Others...
Page 204 SiEN04-306D Part 9 Appendix 1. Piping Diagrams..................196 1.1 Indoor Units ..................196 1.2 Outdoor Units ..................197 2. Wiring Diagrams..................203 2.1 Indoor Units ..................203 2.2 Outdoor Units ..................206 Appendix...
Page 205: Part 9 Appendix
Piping Diagrams SiEN04-306D 1. Piping Diagrams Indoor Units FTK(X)S50/60BVMA, FTK(X)S50/60BVMB, FTKS71BVMA, FTKS71BVMB FT(Y)S50/60BVMB, ATXS50CVMB, ATXS50DVMB FTKD60BVM, FTKD60BVMA, FTKD60BVMT, FTKD50BVM, FTK(X)D50BVMA, FTK(X)D50BVMT, FTKD18BVMS, FTKS71BAVMB FTXD50BV4 INDOOR UNIT INDOOR UNIT ( 7.9CuT ) ( 7.9CuT ) HEAT EXCHANGER HEAT EXCHANGER THERMISTOR ON HEAT EXCH.
Page 206: Outdoor Units
SiEN04-306D Piping Diagrams Outdoor Units 1.2.1 Cooling Only RKS50BVMA, RKS50BVMB(9), RKS50B2VMB, RS50B(2)VMB OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE THERMISTOR 7.9CuT 12.7CuT 7.9CuT CAPILLARY TUBE 1 7.9CuT MUFFLER 7.9CuT WITH REFRIGERANT FLOW FILTER 6.4CuT 7.9CuT COOLING HEAT EXCHANGER THERMISTOR CAPILLARY TUBE 2 7.9CuT...
Page 207 Piping Diagrams SiEN04-306D RKS71BVMA, RKS71BVMB(9), RKS71B2VMB, RKS71B3VMB OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE THERMISTOR 7. 9CuT 7. 9CuT 7. 9CuT 12. 7CuT 7. 9CuT CAPILLARY TUBE 1 7. 9CuT MUFFLER 7. 9CuT WITH 7. 9CuT 7. 9CuT REFRIGERANT FLOW...
Page 208 SiEN04-306D Piping Diagrams RKD60BVM, RKD60BVMA, RKD60BVMT, RKD18BVMS 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...
Page 209: Heat Pump
Piping Diagrams SiEN04-306D 1.2.2 Heat Pump RXS50BVMA, RXS50B(2)VMB, RYS50B(2)VMB, ARXS50C(2)VMB OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE THERMISTOR 7.9CuT 12.7CuT 7.9CuT CAPILLARY TUBE 1 7.9CuT MUFFLER 7.9CuT WITH REFRIGERANT FLOW FILTER 6.4CuT 7.9CuT COOLING HEAT EXCHANGER CAPILLARY TUBE 2 THERMISTOR HEATING 7.9CuT...
Page 210 SiEN04-306D Piping Diagrams RXS71BVMA, RXS71BVMB, RXS71B2VMB, RXS71B3VMB OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE THERMISTOR 7. 9CuT 7. 9CuT 7. 9CuT 12. 7CuT 7. 9CuT CAPILLARY TUBE 1 7. 9CuT MUFFLER 7. 9CuT WITH 7. 9CuT 7. 9CuT REFRIGERANT FLOW...
Page 211 Piping Diagrams SiEN04-306D RXD60BVMA, RXD60BVMT OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE THERMISTOR 7.9CuT 7.9CuT 7.9CuT 12.7CuT 7.9CuT CAPILLARY TUBE 1 7.9CuT 7.9CuT MUFFLER 7.9CuT WITH 7.9CuT REFRIGERANT FLOW FILTER CAPILLARY TUBE 2 6.4CuT COOLING 7.9CuT CAPILLARY TUBE 3 7.9CuT...
Page 212: Wiring Diagrams
SiEN04-306D Wiring Diagrams 2. Wiring Diagrams Indoor Units FTK(X)S50BVMA, FTK(X)S50BVMB, ATXS50CVMB, ATXS50DVMB, FTXD50BV4 FIELD WIRING. PCB3 PCB1 RECTIFIER 3.15A OUTDOOR t° CAUTION TRANSMISSION NOTE THAT OPERATION WILL CIRCUIT RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS PCB4 TURNED OFF AND THEN BACK ON AGAIN.
Page 213 Wiring Diagrams SiEN04-306D FT(Y)S50BVMB FIELD WIRING. PCB3 PCB1 RECTIFIER 3.15A t° OUTDOOR TRANSMISSION CAUTION CIRCUIT NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS PCB4 TURNED OFF AND THEN BACK ON AGAIN. LED1 LED2 : FRAME GROUND...
Page 214: Wiring Diagrams
SiEN04-306D Wiring Diagrams FTKD18/24/28BVMS Appendix...
Page 215: Outdoor Units
Wiring Diagrams SiEN04-306D Outdoor Units RKS50/60/71BVMA, RKS50/60/71BVMB(9), RS50/60B(2)VMB, RKS50/60/71B2VMB RKD50/60/71BVM, RKD50/60/71BVMA, RKD50/60/71BVMT, RKS71B3VMB PCB2 FU201 3.15A MRM20 HAC1 MRM10 X11A CN11 R12T CN14 3.15A TO INDOOR UNIT t° PCB1 POWER SUPPLY S101 ~50Hz 220-240V ~60Hz 220-230V FIELD WIRING indoor t°...
Page 216 SiEN04-306D Wiring Diagrams RKD18/24/28BVMS Appendix...
Page 217 Wiring Diagrams SiEN04-306D Appendix...
Page 218: Index
SiEN04-306D Index Numerics check No.07 ............142 check No.08 ............143 00 .................107 check No.09 ............143 3 minutes stand-by ...........54, 60 check No.10 ............144 3-D airflow ..............44 check No.11 ............144 check No.12 ............145 check No.13 ............145 A1 .................108...
Page 219 SiEN04-306D C9 ..............113 H6 ................ 125 E5 ..............115 H8 ................ 126 E6 ..............116 H9 ................ 128 E7 ..............117 HA ..............36, 159 E8 ..............118 HAC1 ............. 38, 176 EA ..............120 Hall IC ............45, 111 F3 ..............122 HE1 ............... 38, 176 F6 ..............123...
Page 220 SiEN04-306D mode hierarchy ............57 mold proof air filter ..........54 S1 ............36, 156, 159 mounting plate for the bearing ......165 S10 ............38, 177, 178 S101 ............38, 177, 178 S102 .............. 38, 178 names of parts ............75 S20 ............38, 176, 178 night set mode ............49...
Page 221 SiEN04-306D outdoor heat exchanger thermistor ......55, 56, 129, 184 radiation fin thermistor ........129 room temperature thermistor ......113 thermistor or related abnormality (indoor unit) ..113 thermistor or related abnormality (outdoor unit) ...128 thermistor resistance check .........141 thermostat control ..........48 TIMER operation ............91 top panel ..............166...
Page 222 SiEN04-306D Drawings & Flow Charts ARC433A series ..........104 heating peak-cut control ........62 automatic air flow control ........45 high pressure control in cooling ......123 automatic operation ..........47 HOME LEAVE operation ........52 auto-swing ..............44 indoor unit PCB abnormality ....... 108 buzzer PCB ............37...
Page 223 SiEN04-306D FTKD60BVM ..........196 FTKD60BVMA ..........196 radiation fin temperature rise ......132 FTKD60BVMT ..........196 remote control ............. 104 FTKD71BVM ..........196 FTKS71BAVMB ..........196 FTKS71BVMA ..........196 service monitor PCB ..........39 FTKS71BVMB ..........196 signal receiver PCB ..........37 FTXD50BV4 ..........196 signal transmission error (between indoor and outdoor FTXD60BVMA ..........196...
Page 224 "The present publication is drawn up by way of information only Daikin Europe N.V. is approved by LRQA for its Quality Daikin’s unique position as a and does not constitute an offer binding upon Daikin Europe N.V.. Management System in accordance with the ISO9001 manufacturer of air conditioning Daikin Europe N.V.

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Daikin SiEN04-306D 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 System Configuration

Part 6 Service Diagnosis

Part 8 Others

Part 9 Appendix

Index

Quick Links

Troubleshooting

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