Daikin FTXD60JV1B User Manual
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Daikin FTXD60JV1B User Manual

Ftxd-j series, flx-j series, rxd-j series inverter pair
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SiBE04-101.book Page i Monday, October 15, 2001 3:08 PM
SiBE04-101
Wall Mounted Type
Heat Pump
Indoor Unit
Outdoor Unit
Floor / Ceiling
Suspended Dual Type
Heat Pump
Indoor Unit
Outdoor Unit
Table of Contents
FTXD-J, FLX-J / RXD-J
Inverter Pair
Series
FTXD50JV1B
FTXD60JV1B
FTXD71JV1B
RXD50JV1B
RXD60JV1B
RXD71JV1B
FLX50JV1B
FLX60JV1B
RXD50JV1B
RXD60JV1B
i

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Summary of Contents for Daikin FTXD60JV1B

  • Page 1 SiBE04-101.book Page i Monday, October 15, 2001 3:08 PM SiBE04-101 Inverter Pair FTXD-J, FLX-J / RXD-J Series Wall Mounted Type Heat Pump Indoor Unit FTXD50JV1B FTXD60JV1B FTXD71JV1B Outdoor Unit RXD50JV1B RXD60JV1B RXD71JV1B Floor / Ceiling Suspended Dual Type Heat Pump...

  • Page 2: Table Of Contents

    SiBE04-101.book Page ii Monday, October 15, 2001 3:08 PM SiBE04-101 1. Introduction .....................v 1.1 Safety Cautions ..................v Part 1 List of Function ..............1 1. Functions....................2 1.1 List of Functions ..................2 Part 2 Specifications..............3 1. Specifications ..................4 1.1 Wall Mounted Type.................. 4 1.2 Floor / Ceiling Suspended Dual Type............
  • Page 3 SiBE04-101.book Page iii Monday, October 15, 2001 3:08 PM SiBE04-101 Part 5 System Configuration............45 1. Instruction....................46 1.1 FTXD50 / 60 / 71J ................. 46 1.2 FLX50 / 60J ................... 65 Part 6 Service Diagnosis.............81 1. Caution for Diagnosis................82 1.1 Troubleshooting with the Operation Lamp..........82 1.2 Troubleshooting with the LED Indication ..........
  • Page 4 SiBE04-101.book Page iv Monday, October 15, 2001 3:08 PM SiBE04-101 Part 7 Removal Procedure ............129 1. For RXD50·60·71J ................130 1.1 Removal of Outer Panels and Fan Motor ..........130 1.2 Removal of Electrical Box..............134 1.3 Removal of Partition Board and Reactor ..........140 1.4 Removal of Sound Insulation for Compressor........

  • Page 5: Introduction

    SiBE04-101.book Page v Monday, October 15, 2001 3:08 PM SiBE04-101 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”.

  • Page 6: Cautions Regarding Products After Repair

    SiBE04-101.book Page vi Monday, October 15, 2001 3:08 PM Introduction SiBE04-101 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 7: Inspection After Repair

    SiBE04-101.book Page vii Monday, October 15, 2001 3:08 PM SiBE04-101 Introduction Warning When connecting the cable between the indoor and outdoor units, make sure that the terminal cover does not lift off or dismount because of the cable. If the cover is not mounted properly, the terminal connection section can cause an electrical shock, excessive heat generation or fire.

  • Page 8: Using Icons

    SiBE04-101.book Page viii Monday, October 15, 2001 3:08 PM Introduction SiBE04-101 Caution If the installation platform or frame has corroded, replace it. Corroded installation platform or frame can cause the unit to fall, resulting in injury. Check the grounding, and repair it if the equipment is not properly grounded. Improper grounding can cause an electrical shock.

  • Page 9: List Of Function

    SiBE04-101.book Page 1 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 1 List of Function 1. Functions....................2 1.1 List of Functions ..................2 List of Function...

  • Page 10: Functions

    — — Microprocessor Control Photocatalytic Deodorizing Filter — — PAM Control Photocatalytic Filter with UV Lamp — — Compressor Oval Scroll Compressor (DAIKIN Mold Proof Air Filter — — SCROLL) Swing Compressor (DAIKIN Washable Grille — ROTARY) Rotary Compressor —...

  • Page 11: Part 2 Specifications

    SiBE04-101.book Page 3 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 2 Specifications 1. Specifications ..................4 1.1 Wall Mounted Type.................. 4 1.2 Floor / Ceiling Suspended Dual Type............6 Specifications...

  • Page 12: Specifications

    SiBE04-101.book Page 4 Monday, October 15, 2001 3:08 PM Specifications SiBE04-101 1. Specifications Wall Mounted Type 230V, 50Hz Indoor Units FTXD50JV1B FTXD60JV1B Models RXD50JV1B RXD60JV1B Outdoor Units Cooling Heating Cooling Heating 5.2 (0.9~5.8) 6.5 (0.9~8.0) 6.2 (0.9~7.0) 7.2 (0.9~8.5) Capacity...
  • Page 13 SiBE04-101.book Page 5 Monday, October 15, 2001 3:08 PM SiBE04-101 Specifications 230V, 50Hz Indoor Units FTXD71JV1B Models RXD71JV1B Outdoor Units Cooling Heating 7.1 (0.9~8.0) 8.5 (0.9~9.5) Capacity Btu/h 24,300 (3,100~27,300) 29,100 (3,100~32,500) Rated (Min.~Max.) kcal/h 6,100 (775~6,880) 7,310 (775~8,170) Moisture Removal —...

  • Page 14: Floor / Ceiling Suspended Dual Type

    SiBE04-101.book Page 6 Monday, October 15, 2001 3:08 PM Specifications SiBE04-101 Floor / Ceiling Suspended Dual Type 230V 50Hz Indoor Units FLX50JV1B FLX60JV1B Models RXD50JV1B RXD60JV1B Outdoor Units Cooling Heating Cooling Heating 4.7 (0.9~5.3) 6.1 (0.9~7.5) 5.7 (0.9~6.5) 6.7 (0.9~8.0) Capacity Btu/h 16,000 (3,100~18,100)

  • Page 15: Part 3 Printed Circuit Board Connector Wiring Diagram

    SiBE04-101.book Page 7 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram and Name ....8 1.1 Name of Connectors for Indoor Unit............8 1.2 FTXD50 / 60 / 71J Series ................ 9 1.3 FLX50 / 60J Series ................

  • Page 16: Printed Circuit Board Connector Wiring Diagram And Name

    SiBE04-101.book Page 8 Monday, October 15, 2001 3:08 PM Printed Circuit Board Connector Wiring Diagram and Name SiBE04-101 1. Printed Circuit Board Connector Wiring Diagram and Name Name of Connectors for Indoor Unit 1) S6 Connector for Swing Motor (Horizontal Swing) 2) S7 Connector for Fan Motor 3) S8...

  • Page 17: Ftxd50 / 60 / 71J Series

    SiBE04-101.book Page 9 Monday, October 15, 2001 3:08 PM SiBE04-101 Printed Circuit Board Connector Wiring Diagram and Name FTXD50 / 60 / 71J Series 1.2.1 Control PCB Detail (PCB 1) PCB is common for both wall mounted type and floor/ceiling suspended dual type except for the connectors which are different in their mating plug.
  • Page 18 SiBE04-101.book Page 10 Monday, October 15, 2001 3:08 PM Printed Circuit Board Connector Wiring Diagram and Name SiBE04-101 1.2.2 Power Supply PCB Detail (PCB 2) 1.2.3 Display PCB Detail (PCB 3) 1.2.4 Signal Receiver PCB Detail (PCB 4) Printed Circuit Board Connector Wiring Diagram...

  • Page 19: Flx50 / 60J Series

    SiBE04-101.book Page 11 Monday, October 15, 2001 3:08 PM SiBE04-101 Printed Circuit Board Connector Wiring Diagram and Name FLX50 / 60J Series 1.3.1 Control PCB (PCB 1) Refer to 1.2.1 1.3.2 Power Supply PCB (PCB 2) Printed Circuit Board Connector Wiring Diagram...
  • Page 20 SiBE04-101.book Page 12 Monday, October 15, 2001 3:08 PM Printed Circuit Board Connector Wiring Diagram and Name SiBE04-101 1.3.3 Display PCB Detail (PCB 3) 1.3.4 Signal Receiver PCB Detail (PCB 4) Printed Circuit Board Connector Wiring Diagram...

  • Page 21: Name Of Connectors For Outdoor Unit

    SiBE04-101.book Page 13 Monday, October 15, 2001 3:08 PM SiBE04-101 Printed Circuit Board Connector Wiring Diagram and Name Name of Connectors for Outdoor Unit 1) S3, S5, S7, S8 Connector for PCB 2 2) S20, S80 Connector for 4 Way Valve Coil (Heat Pump Only) 3) S40 Connector for TFU (76˚C) 4) S50...

  • Page 22: Rxd50 / 60 / 71J Series

    SiBE04-101.book Page 14 Monday, October 15, 2001 3:08 PM Printed Circuit Board Connector Wiring Diagram and Name SiBE04-101 RXD50 / 60 / 71J Series 1.5.1 Control PCB Printed Circuit Board Connector Wiring Diagram...
  • Page 23 SiBE04-101.book Page 15 Monday, October 15, 2001 3:08 PM SiBE04-101 Printed Circuit Board Connector Wiring Diagram and Name 1.5.2 Filter PCB Printed Circuit Board Connector Wiring Diagram...
  • Page 24 SiBE04-101.book Page 16 Monday, October 15, 2001 3:08 PM Printed Circuit Board Connector Wiring Diagram and Name SiBE04-101 Printed Circuit Board Connector Wiring Diagram...

  • Page 25: Part 4 Main Function

    SiBE04-101.book Page 17 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 4 Main Function 1. General Functions.................18 1.1 Functions of Thermistors ............... 18 1.2 Operating Modes ................... 19 1.3 Frequency Principle................20 1.4 Defrost Control ..................21 1.5 Forced Operation Mode................. 23 1.6 Flap Control ...................

  • Page 26: General Functions

    SiBE04-101.book Page 18 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1. General Functions Functions of Thermistors Location of the The thermistors on the drawing below are used to control the system. This control secures a proper cooling Thermistors and prevents problems of the unit: OUTDOOR UNIT INDOOR UNIT...

  • Page 27: Operating Modes

    SiBE04-101.book Page 19 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions Operating Modes Modes There are two operating modes: Normal operating mode Forced operating mode Overview The following table shows the different control modes of the Split inverter room air conditioners: Mode Item Normal Operating Mode...

  • Page 28: Frequency Principle

    SiBE04-101.book Page 20 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 Frequency Principle Main Control The compressor is frequency-controlled during normal operation. The target frequency is set by the Parameters following 2 parameters coming from the operating indoor unit: The load condition of the operating indoor unit The difference between the room temperature and the set temperature Additional Control...

  • Page 29: Defrost Control

    SiBE04-101.book Page 21 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions Defrost Control Principle When frost deposit on the outdoor heat exchanger has increased in heating operation, change the operation from heating cycle to cooling cycle for defrosting. Start Conditions Defrost control is set by the following conditions: During heating More than 35 minutes after the compressor has started up...
  • Page 30 SiBE04-101.book Page 22 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 Time Chart Defrost C Hz Defrost 108Hz Compressor B Hz 90Hz operation frequency 80Hz A Hz 76Hz 35min. 60sec. 60sec. 280sec. 80sec. 180sec. 300sec. 150min. 50sec. 60sec. 4-way Cool valve Warm...

  • Page 31: Forced Operation Mode

    SiBE04-101.book Page 23 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions Forced Operation Mode 1.5.1 J type Operation by the Operation Buttons Item Forced cooling Forced heating Provided at the Unit not in the 3-minute stand-by mode not in the 3-minute stand-by mode normal operation mode normal operation mode or the Remote...

  • Page 32: Flap Control

    SiBE04-101.book Page 24 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 Flap Control 1.6.1 Wall Mounted J Type Wide-angle Flap 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.
  • Page 33 SiBE04-101.book Page 25 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions Details of the It can be commanded for J type by means of a user setting to select either any one desired position among Action the five-step directions of air flow adjusted on a remote controller, or Auto-swing. Initial (R1020) Initial...
  • Page 34 SiBE04-101.book Page 26 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.6.2 Floor / Ceiling Suspended Dual Type Details of the Action Caution The direction of airflow in horizontal swing can be set in auto mode or in any position by remote controller. Set the direction of airflow by swing motion stopping operation at a position at which user want to stop the motion while watching the flap.

  • Page 35: Fan Speed Control For Indoor Units

    SiBE04-101.book Page 27 Monday, October 15, 2001 3:08 PM SiBE04-101 General 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. Phase Steps Phase control and fan speed control contains 8 steps: LLL, LL, L, ML, M, MH, H and HH.

  • Page 36: Fan Speed Control For Outdoor Units

    SiBE04-101.book Page 28 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 Fan Speed Control for Outdoor Units Outline DC motor is adopted for the outdoor fan, the rotating speed is controlled depending on the condition. In outdoor unit silent operation, the rotating speed is changed further. Details of the Cooling Operation Action...

  • Page 37: Outdoor Unit Silent Operation

    SiBE04-101.book Page 29 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions Outdoor Unit Silent Operation Outline This air conditioner is provided with a switch to prevent next-door neighbors from annoyance of operation noise when it is installed in a heavily built-up area. (The indoor air volume is left as set by user for measure not to annoy neighbors.) Details of the 1.

  • Page 38: General Functions

    SiBE04-101.book Page 30 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.10 General Functions Pre-heat Operation When the equipment has stopped and t < 4˚C, the compressor is warmed-up by passing a single- [outside] phase (U, V phase) current through the compressor motor to speed up the start. The power consumption is 50~60W.
  • Page 39 SiBE04-101.book Page 31 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions The frequency command for every zone is stated below. (Please note that an operation will not carry out in the commanded frequency sometimes in case a protection control like a freeze-protection etc. will be actuated.) Command frequency Room temperature Room temp.

  • Page 40: Inverter Powerful Operation

    SiBE04-101.book Page 32 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.11 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 Control When the powerful operation switch is pressed in each operation mode, the fan rotating speed and set...

  • Page 41: Home Leave Operation

    Part4.fm Page 33 Thursday, October 18, 2001 2:21 PM SiBE04-101 General Functions 1.12 Home Leave Operation Outline In order to respond to the customer's need for immediate heating and cooling of the room after returning home or for house care, a measure to switch the temperature and air volume from that for normal time over to outing time by one touch is provided.

  • Page 42: Automatic Operation

    SiBE04-101.book Page 34 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.13 Automatic Operation Outline To maintain the set temperature and set air volume, the operation of air conditioner is switched automatically to cooling or heating within the differentials as follows. Only the heat pump type model is equipped with this function.

  • Page 43: Input Current Control

    SiBE04-101.book Page 35 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions 1.14 Input Current Control Outline The frequency control will be carried out so that the input current will not exceed the rated value in the zone which is divided by the input current detected with CT as the figure below shows. Compressor stops.

  • Page 44: Freeze Up Prevention Function In Cooling

    SiBE04-101.book Page 36 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.15 Freeze up Prevention Function in Cooling Outline During Cooling/Dry operation, when the heat exchanger’s temperature falls down excessively, the capacity supply will be reduced (frequency step down) so as to prevent freeze of the heat exchanger and the creation of dew on a rotor caused by a excessive capacity supply to the indoor unit.

  • Page 45: Peak-Cut Control Function

    SiBE04-101.book Page 37 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions 1.16 Peak-Cut Control Function Outline In a heating operation, there will be anxiety that a head pressure excessively increases and exceeds the permissible limit in an over load conditions. For avoiding this fact, when the head pressure increases, frequency step down control is carried out for the protection so that the head pressure will not exceed the permissible limit after detecting the temperature of the indoor unit’s heat exchanger.

  • Page 46: 4-Way Valve Function Compensation

    SiBE04-101.book Page 38 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.17 4-Way Valve Function Compensation Outline When the initial start of compressors is required after power is on or at operation mode’s alteration (Cooling/Dry ↔ Heating) that the a switch-over of a 4-way valve takes place, it secures the necessary differential pressure by restricting the operation frequency in the lower limit in a certain period, and the switch-over action is ensured.

  • Page 47: Compressor Protection Function

    SiBE04-101.book Page 39 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions 1.18 Compressor Protection Function Outline An refrigeration oil level descent and progression of the dilution which will arise at operation of the compressors will be avoided by controlling the upper limit of frequency at the edge of compressor’s changeover from OFF to ON as follows.

  • Page 48: Wet Operation Protection I (Securing Of Differential Pressure And Blown Air Temperature)

    SiBE04-101.book Page 40 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.19 Wet Operation Protection I (Securing of Differential Pressure and Blown Air Temperature) Outline To secure the reliability of the compressor (for dryness of suction refrigerant and differential pressure) which is the primary purpose of the compressor, the lower limit of the output frequency is limited to two stages under the condition of outside air temperature.

  • Page 49: Wet Operation Protection Ii (Protection From Differential Pressure)

    SiBE04-101.book Page 41 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions 1.20 Wet Operation Protection II (Protection from Differential Pressure) Outline Differential pressure generated in low-temperature outside air-cooling operation is secured, and when the differential pressure is lowered below the standard value, the operation of the compressor is once stopped for protection.

  • Page 50: Dew Prevention Function

    SiBE04-101.book Page 42 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.21 Dew Prevention Function Outline During Cooling/Dry operation, when the heat exchanger’s temperature falls down excessively, the capacity supply will be reduced (frequency step down) so as to prevent dew formation around a discharge grille caused by a excessive capacity supply to an indoor unit.

  • Page 51: Setting For Long Piping

    SiBE04-101.book Page 43 Monday, October 15, 2001 3:08 PM SiBE04-101 General Functions 1.22 Setting for Long Piping Outline When the piping length exceeds 10 meters, the target discharge pipe temperature is calculated at a lower level due to pressure loss in the piping system. The target discharge pipe temperature is corrected to a higher level by cutting the jumper wire (S50) for long piping provided on the outdoor control PCB in order to avoid lowering of performance due to insufficient pressure reduction.

  • Page 52: On-Site Setting Jumper Wire

    SiBE04-101.book Page 44 Monday, October 15, 2001 3:08 PM General Functions SiBE04-101 1.23 On-site Setting Jumper Wire Outline It is necessary to provide the specifications which may be required for the measures to be taken according to the local circumstances of the installation site. If necessary, such specifications can be adopted easily by cutting the jumper wire provided on the PCB of outdoor unit.

  • Page 53: Part 5 System Configuration

    SiBE04-101.book Page 45 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 5 System Configuration 1. Instruction....................46 1.1 FTXD50 / 60 / 71J ................. 46 1.2 FLX50 / 60J ................... 65 System Configuration...

  • Page 54: Instruction

    SiBE04-101.book Page 46 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 1. Instruction FTXD50 / 60 / 71J Safety Precautions Read the following warnings and cautions W ARNING carefully before operating the system and Failure to follow a warning is very likely to use it correctly.
  • Page 55 SiBE04-101.book Page 47 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Do not stand or sit on the outdoor unit. Do not place any object on the unit. The object or the person may fall down or drop, causing injury. Do not place under the indoor or outdoor unit anything which must be kept away from moisture.
  • Page 56 SiBE04-101.book Page 48 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Note for Multi System Installation site To install the air conditioner in the following types of environments, consult Precedence-room setting the shop. When setting the preference-room during installation, the Places with an oily ambient or where indoor unit’s operation mode always takes priority.
  • Page 57 SiBE04-101.book Page 49 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Names of Parts Indoor unit Air purifying filter Air inlet Air purifying filters are attached to the inside of the air filters. Front grille Grille tab Diffuser Air filter Air outlet Louvre Flap...
  • Page 58 SiBE04-101.book Page 50 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Names of Parts Remote controller Open cover. Transmitter It sends signals to the indoor unit. ON/OFF button Press it once to start operation. To stop it, press it once again. ON/OFF Display It displays the current settings.
  • Page 59 SiBE04-101.book Page 51 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Names of Part s Outdoor unit Refrigerant piping and inter-unit cable Air inlet (Back and side) Drain hose Earth terminal It is inside of this part. Air outlet Appearance of the outdoor unit may differ from some models. <RKD50/60/71J>...
  • Page 60 SiBE04-101.book Page 52 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Preparation Before Operation Operating the remote controller Remote controller To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals Setting the batteries between the unit and the remote controller, such as a curtain, the unit will not operate.

  • Page 61: Setting The Clock

    SiBE04-101.book Page 53 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Preparation Before Operation Indoor unit Setting the clock Setting the air purifying filters Open the front grille. Press Hold the grille by the tabs on the two sides and lift it until it stops with a click. is displayed.
  • Page 62 SiBE04-101.book Page 54 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 AUTO • DRY • COOL • HEAT Operation To change the air flow rate setting: The air conditioner operates with the settings of your choice. Press From the next time on, the air conditioner will operate with the same settings.
  • Page 63 SiBE04-101.book Page 55 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Adjusting the Air Flow Direction Notes on flap angles You can adjust the air flow direction to increase your comfort. When [SWING] is selected, the flap Adjusting the swinging range depends on the operation mode.

  • Page 64: Powerful Operation

    SiBE04-101.book Page 56 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 OUTDOOR UNIT POWERFUL SILENT Operation Operation POWERFUL operation quickly maximizes the OUTDOOR UNIT SILENT operation lowers the cooling (heating) effect in any operation mode. noise-level of the outdoor unit by changing the You can get the maximum capacity with a touch frequency and fan rpm on the outdoor unit.
  • Page 65 SiBE04-101.book Page 57 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction HOME LEAVE Operation How to set the temperature and HOME LEAVE operation function is useful when air flow rate. you leave the house or the room. Press How to use HOME LEAVE Operation ∗...
  • Page 66 SiBE04-101.book Page 58 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 HOME LEAVE Operation Useful at times like these! 1 Every day before you leave the house... When you go out, push the When you return, you will Push the “HOME LEAVE “HOME LEAVE Operation”...
  • Page 67 SiBE04-101.book Page 59 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Timer Operation Timer functions are useful for automatically ON TIMER operation switching the air conditioner on or off at night or in the morning. You can also use OFF TIMER and Check that the clock is correct.
  • Page 68 SiBE04-101.book Page 60 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Care and Cleaning Cleaning the indoor and outdoor CAUTION units and the remote controller Before cleaning, be sure to stop the operation and turn the breaker OFF. Wipe them with dry soft cloth. For cleaning, do not use water hotter than 40˚C, benzine, gasoline, thinner, nor other Cleaning the air filter s...

  • Page 69: Cleaning The Front Grille

    SiBE04-101.book Page 61 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Care and Cleaning Check Cleaning the front grille Check that the base, stand and other You may remove the front grille for cleaning. fittings of the outdoor unit are not decayed or corroded.
  • Page 70 SiBE04-101.book Page 62 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Troubleshooting These cases are no 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 71 SiBE04-101.book Page 63 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Troubleshooting 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) Are batteries set in the remote controller? Is the timer setting correct?
  • Page 72 SiBE04-101.book Page 64 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Troubleshooting 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.

  • Page 73: Flx50 / 60J

    SiBE04-101.book Page 65 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction FLX50 / 60J Names of Parts Indoor unit The indoor unit can be installed either to the ceiling or to a wall. The descriptions contained in this manual show the case when installation is being carried out to the ceiling.
  • Page 74 SiBE04-101.book Page 66 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Names of Parts Remote controller Open cover. Transmitter It sends signals to the indoor unit. Display TEMPERATURE It displays the current settings. adjustment button (In this illustration, each section is shown with all its It changes the temperature displays ON for the purpose of setting.
  • Page 75 SiBE04-101.book Page 67 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Names of Parts Outdoor unit Refrigerant piping and inter-unit cable Air inlet (Back and side) Drain hose Earth terminal It is inside of this part. Air outlet Appearance of the outdoor unit may differ from some models. <RXD50/60J>...
  • Page 76 SiBE04-101.book Page 68 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Preparation Before Operation Operating the remote controller Remote controller To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals Setting the batteries between the unit and the remote controller, such as a curtain, the unit will not operate.
  • Page 77 SiBE04-101.book Page 69 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Preparation Before Operation Indoor unit Setting the clock Setting the air purifying filters When opening the front grille, use a robust and Press stable stool and watch your steps carefully. is displayed.
  • Page 78 SiBE04-101.book Page 70 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 AUTO • DRY • COOL • HEAT Operation To change the air flow rate setting: The air conditioner operates with the settings of your choice. Press From the next time on, the air conditioner will operate with the same settings.
  • Page 79 SiBE04-101.book Page 71 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Adjusting the Air Flow Direction NOTE You can adjust the air flow direction to increase Unless [SWING] is selected, you should your comfort. set the flap at a near- horizontal angle in COOL or DRY mode to obtain the best Adjusting the performance.
  • Page 80 SiBE04-101.book Page 72 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 OUTDOOR UNIT POWERFUL SILENT Operation Operation POWERFUL operation quickly maximizes the OUTDOOR UNIT SILENT operation lowers the cooling (heating) effect in any operation mode. noise-level of the outdoor unit by changing the You can get the maximum capacity with a touch frequency and fan rpm on the outdoor unit.
  • Page 81 SiBE04-101.book Page 73 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction HOME LEAVE Operation How to set the temperature and HOME LEAVE operation function is useful when air flow rate. you leave the house or the room. HOMELEAVE Press How to use HOME LEAVE Operation ∗...
  • Page 82 SiBE04-101.book Page 74 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 HOME LEAVE Operation Useful at times like these! 1 Every day before you leave the house... When you go out, push the When you return, you will Push the “ HOME LEAVE “...
  • Page 83 SiBE04-101.book Page 75 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Timer Operation Timer functions are useful for automatically ON TIMER operation switching the air conditioner on or off at night or Check that the clock is correct. If not, set the in the morning.

  • Page 84: Cleaning The Indoor And Outdoor Units And The Remote Controller

    SiBE04-101.book Page 76 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Care and Cleaning Cleaning the indoor and outdoor CAUTION units and the remote controller Before cleaning, be sure to stop the operation and turn the breaker OFF. Wipe them with dry soft cloth. When opening the front grille, use a robust and stable For cleaning, do not use water hotter than stool and watch your steps carefully.
  • Page 85 SiBE04-101.book Page 77 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Care and Cleaning 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.
  • Page 86 Part5.fm Page 78 Thursday, October 18, 2001 2:21 PM Instruction SiBE04-101 Troubleshooting These cases are no 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 87 SiBE04-101.book Page 79 Monday, October 15, 2001 3:08 PM SiBE04-101 Instruction Troubleshooting 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) Are batteries set in the remote controller? Is the timer setting correct?
  • Page 88 SiBE04-101.book Page 80 Monday, October 15, 2001 3:08 PM Instruction SiBE04-101 Troubleshooting 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.

  • Page 89: Part 6 Service Diagnosis

    SiBE04-101.book Page 81 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 6 Service Diagnosis 1. Caution for Diagnosis................82 1.1 Troubleshooting with the Operation Lamp..........82 1.2 Troubleshooting with the LED Indication ..........83 2. Problem Symptoms and Measures ............84 3. Service Check Function ................85 3.1 ARC417 Series..................

  • Page 90: Caution For Diagnosis

    SiBE04-101.book Page 82 Monday, October 15, 2001 3:08 PM Caution for Diagnosis SiBE04-101 1. Caution for Diagnosis Troubleshooting with the Operation Lamp The Operation lamp flashes when any of the following errors is detected. 1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions, disabling equipment operation.

  • Page 91: Troubleshooting With The Led Indication

    SiBE04-101.book Page 83 Monday, October 15, 2001 3:08 PM SiBE04-101 Caution for Diagnosis Troubleshooting with the LED Indication There are green and red LEDs on the PCB. The flashing green LED indicates normal equipment condition, and the OFF condition of the red LED indicates normal equipment condition. (Troubleshooting with the green LED) The LED A of the outdoor unit indicate microcomputer operation condition.

  • Page 92: Problem Symptoms And Measures

    SiBE04-101.book Page 84 Monday, October 15, 2001 3:08 PM Problem Symptoms and Measures SiBE04-101 2. Problem Symptoms and Measures Problem Symptom Check Item Details of Measure Page No. to be referred None of The Units Operates. Check the power supply. Check to make sure that the rated voltage is supplied.

  • Page 93: Service Check Function

    SiBE04-101.book Page 85 Monday, October 15, 2001 3:08 PM SiBE04-101 Service Check Function 3. Service Check Function ARC417 Series In the ARC417A 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 94: Arc423 Series

    SiBE04-101.book Page 86 Monday, October 15, 2001 3:08 PM Service Check Function SiBE04-101 ARC423 Series In the ARC423A 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 95: Troubleshooting

    SiBE04-101.book Page 87 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4. Troubleshooting Indoor Units - : Not used for troubleshooting ∗ : Varies depending on the cases. Indication on the Description of the Fault Details of fault remote controller (Refer to the indicated page.)

  • Page 96: Outdoor Units

    SiBE04-101.book Page 88 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 Outdoor Units : ON, : OFF, : Blinks Green: Flashes when in normal condition Red: OFF in normal condition - : Not used for troubleshooting ∗ : Varies depending on the cases. Outdoor Unit LED Indication Indication on the Description of the Fault...

  • Page 97: Faulty Pcb

    SiBE04-101.book Page 89 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting Faulty PCB Remote Controller Display Indoor unit LED 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 Causes...

  • Page 98: Operation Shutdown Due To High-Pressure Control Or Freeze-Up Protection (Thermistor Activation)

    SiBE04-101.book Page 90 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 Operation Shutdown Due to High-Pressure Control or Freeze-Up Protection (Thermistor Activation) Remote Controller Display Indoor unit LED Display Method of High pressure control Malfunction During heating operations, the temperature detected by the indoor heat exchanger thermistor is used Detection for the high pressure control (operation stop) The freeze protection control (operation halt) is activated during cooling operation according to the...

  • Page 99: Operation Halt Due To Fan Motor (Dc Motor) Or Related Abnormality [Wall Mounted Type]

    SiBE04-101.book Page 91 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting Operation Halt Due to Fan Motor (DC Motor) or Related Abnormality [Wall Mounted Type] Remote Controller Display Indoor unit LED Display Method of The rotation speed detected by the hall IC during fan motor operation in high voltage is used to determine Malfunction abnormal fan motor operation.
  • Page 100 SiBE04-101.book Page 92 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.35 Rotate the fan by hand Rerer to P.127 Check No.37 Does it rotate Replace the fan motor.

  • Page 101: Operation Halt Due To Fan Motor (Ac Motor) Or Related Abnormality (Floor / Ceiling Suspended Dual Type)

    SiBE04-101.book Page 93 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting Operation Halt Due to Fan Motor (AC Motor) or Related Abnormality (Floor / Ceiling Suspended Dual Type). Remote Controller Display Indoor unit LED Display Method of The rotation speed detected by the hall IC during fan motor operation is used to determine abnormal fan Malfunction motor operation.

  • Page 102: Operation Halt Due To Detection Of Thermistor Or Related Abnormality

    SiBE04-101.book Page 94 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 Operation Halt Due to Detection of Thermistor or Related Abnormality C4, C9, CA Remote Controller Display Indoor unit LED Display Method of The temperatures detected by the thermistors are used to determine thermistor errors. Malfunction Detection Malfunction...

  • Page 103: Faulty Indoor Unit Pcb

    SiBE04-101.book Page 95 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting Faulty Indoor Unit PCB ∗ Remote Controller Display Indoor unit LED Display Method of The proper program operation of the microcomputer is checked by the program. Malfunction Detection Malfunction When the microcomputer program does not function properly.

  • Page 104: Faulty Indoor Unit Pcb

    SiBE04-101.book Page 96 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 Faulty Indoor Unit PCB ∗ Remote Controller Display Indoor unit LED Display Method of The condition of the transmission circuit for indoor-outdoor signal transmission is detected. Malfunction Detection Malfunction When the transmission circuit remains ON.

  • Page 105: Power Supply Abnormalities Or Faulty Indoor Pcb

    SiBE04-101.book Page 97 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.10 Power Supply Abnormalities or Faulty Indoor PCB ∗ Remote Controller Display Indoor unit LED Display Method of 1. The proper program operation of the microcomputer is checked by the program. Malfunction 2.

  • Page 106: Signal Transmission Error (Between Indoor And Outdoor Units)

    SiBE04-101.book Page 98 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.11 Signal Transmission Error (between Indoor and Outdoor Units) Remote Controller Display Indoor unit LED Display Method of The data received from the outdoor unit in indoor unit-outdoor unit signal transmission is checked whether Malfunction it is normal.

  • Page 107: Faulty Indoor / Outdoor Power Supply Specification

    SiBE04-101.book Page 99 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.12 Faulty Indoor / Outdoor Power Supply Specification Remote Controller Display Indoor unit LED Display Method of The indoor/outdoor unit data communication signal is used to detect different power specifications Malfunction (connection of indoor power receiving unit and outdoor power receiving unit).

  • Page 108: Operation Halt Due To High Pressure Control For Cooling Operation

    SiBE04-101.book Page 100 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.13 Operation Halt Due to High Pressure Control for Cooling Operation Remote Controller Display Outdoor unit LED Display Method of During cooling operation, the temperature detected by the defrost thermistor is used for the high pressure Malfunction control (stop, frequency drooping, etc.).

  • Page 109: Operation Halt Due To Discharge Pipe Temperature Control

    SiBE04-101.book Page 101 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.14 Operation Halt Due to Discharge Pipe Temperature Control Remote Controller Display Outdoor unit LED Display Method of The discharge pipe temperature detected by the discharge pipe thermistor is used for discharge pipe Malfunction temperature control (stop or frequency step down control) .

  • Page 110: Interrupt Due To Ol Action Or Thermal Fuse Blow-Out

    SiBE04-101.book Page 102 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.15 Interrupt Due to OL Action or Thermal Fuse Blow-Out Remote Controller Display Outdoor unit LED Display Method of OL action detected by the opening of OL contact. Malfunction Thermal fuse blown out.
  • Page 111 SiBE04-101.book Page 103 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.15 Check continuity between contacts using a tester. Refer to P.123 Is there continuity (with system...

  • Page 112: Compressor Seizing

    SiBE04-101.book Page 104 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.16 Compressor Seizing Remote Controller Display Outdoor unit LED Display Method of Uses a position detection signal which is generated when a compressor lock occurs. Malfunction Compressor rotating condition detected by position detection sensor Detection Malfunction When a compressor lock judgment is made and the operation stops due to overcurrent.

  • Page 113: Dc Fan Seizing

    SiBE04-101.book Page 105 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.17 DC Fan Seizing Remote Controller Display Outdoor unit LED Display Method of The number of revolutions detected by the detection circuit during fan motor operation is used to detect fan Malfunction motor abnormalities.

  • Page 114: Operation Halt Due To Detection Of Input Over Current

    SiBE04-101.book Page 106 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.18 Operation Halt Due to Detection of Input Over Current ∗ Remote Controller Display Outdoor unit LED Display Method of Input over current is checked using the input current detected by the CT during compressor operation. Malfunction Detection Malfunction...
  • Page 115 SiBE04-101.book Page 107 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting ∗ Internal wiring errors can cause an input over current. If the equipment stops due to an input over Troubleshooting current after the wires are disconnected and connected again for parts replacement, etc., check for wiring errors.

  • Page 116: Operation Halt Due To Position Detection Sensor

    SiBE04-101.book Page 108 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.19 Operation Halt Due to Position Detection Sensor Remote Controller Display Outdoor unit LED Display Method of The position detection unit of electrical parts is used to confirm the compressor rotation information for the Malfunction detection of compressor startup failures.

  • Page 117: Operation Halt Due To Detection Of Ct Error

    SiBE04-101.book Page 109 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.20 Operation Halt Due to Detection of CT Error Remote Controller Display Outdoor unit LED Display Method of CT errors are detected using the compressor's operating frequency and the input current detected by the Malfunction Detection Malfunction...

  • Page 118: Output Overcurrent

    SiBE04-101.book Page 110 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.21 Output Overcurrent Remote Controller Display Outdoor unit LED Display Method of Detection of output overcurrent based on current flowing in DCCT. Malfunction (Inverter direct current part) Detection Malfunction Detection of abnormal position signal during compressor operation.
  • Page 119 SiBE04-101.book Page 111 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting ∗ Erroneous internal wiring can result in output overcurrent in some cases. If system stops due to output Troubleshooting overcurrent after parts replacement that requires disconnection of wires, check wiring carefully Be sure to turn off power switch before connect or disconnect connector, Check No.14 Caution...

  • Page 120: Operation Halt Due To Thermistor Error Or Disconnection Detection

    SiBE04-101.book Page 112 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.22 Operation Halt Due to Thermistor Error or Disconnection Detection J3, J6, H9 Remote Controller Display Outdoor unit LED Display Method of Thermistor errors are detected using thermistor input voltage to micro computor. (Thermistor errors are Malfunction detected using the temperatures detected by the thermistors.) Detection...

  • Page 121: Operation Halt Due To Detection Of Insufficient Gas

    SiBE04-101.book Page 113 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.23 Operation Halt Due to Detection of Insufficient Gas Remote Controller Display Outdoor unit LED Display Method of Detection method 1 Malfunction Gas shortage is detected by the temperature of the discharge pipe which is detected by the discharge pipe Detection thermistor and the opening of the electromagnetic valve.
  • Page 122 SiBE04-101.book Page 114 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.20 Refer to P.125 Is any thermistor Insert in the specified position. disconnected? Especially the discharge pipe thermistor, indoor, outdoor air...

  • Page 123: Detection Of Low Voltage (Lvp)

    SiBE04-101.book Page 115 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.24 Detection of Low Voltage (LVP) Remote Controller Display Outdoor unit LED Display Method of Abnormal voltage decrease in the DC section. Malfunction Detection Malfunction When an low voltage signal is sent from the low voltage detection circuit to the microcomputer. Decision The system shuts down after low voltage is detected 255 times.

  • Page 124: Faulty Outdoor Unit Pcb

    SiBE04-101.book Page 116 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 4.25 Faulty Outdoor Unit PCB ∗ Remote Controller Display Outdoor unit LED 1 — 2 — 3 — 4 — Display Method of The proper program operation of the microcomputer is checked by the program. Malfunction Detection Malfunction...

  • Page 125: Faulty Outdoor Unit Pcb And Transmitting/Receiving Circuit

    SiBE04-101.book Page 117 Monday, October 15, 2001 3:08 PM SiBE04-101 Troubleshooting 4.26 Faulty Outdoor Unit PCB and Transmitting/Receiving Circuit ∗ Remote Controller Display Outdoor unit LED 1 — 2 — 3 — 4 — Display Method of 1. The proper program operation of the microcomputer is checked by the program. Malfunction 2.
  • Page 126 SiBE04-101.book Page 118 Monday, October 15, 2001 3:08 PM Troubleshooting SiBE04-101 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, Caution or parts damage may be occurred. Check No.12 Check the power supply voltage. Refer to P.121 Correct the power supply.

  • Page 127: Checks

    SiBE04-101.book Page 119 Monday, October 15, 2001 3:08 PM SiBE04-101 Checks 5. Checks How to Check 5.1.1 Thermistor Resistance Check Check No.1 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 128: Installation Condition Check

    SiBE04-101.book Page 120 Monday, October 15, 2001 3:08 PM Checks SiBE04-101 5.1.2 Installation Condition Check Check No.2 Installation condition check Check the allowable Abnormal Change the position of the air dimensions of the air suction discharge grille or the and discharge installation location.
  • Page 129 SiBE04-101.book Page 121 Monday, October 15, 2001 3:08 PM SiBE04-101 Checks 5.1.4 Power Supply Waveforms Check Check No.12 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 130 SiBE04-101.book Page 122 Monday, October 15, 2001 3:08 PM Checks SiBE04-101 5.1.6 Power Transistor Check (Capacitor Voltage Check) Check No.14 1. Power transistor check Note: Check to make sure that the voltage between the terminal of Power transistor (+) and (-) is approx. 0 volt before checking power transistor.

  • Page 131: Refrigerant System Check

    SiBE04-101.book Page 123 Monday, October 15, 2001 3:08 PM SiBE04-101 Checks < Measuring positions > Take measurements at the power transistor (+) and (-) terminals in the same way as described in section 1. Set the multi-tester to DC and VOLTAGE RANGE before measurement. ∗...
  • Page 132 SiBE04-101.book Page 124 Monday, October 15, 2001 3:08 PM Checks SiBE04-101 5.1.8 Fan Motor Connector Output Check Check No.16 1. Check the connector connection. 2. With the power ON, operation OFF, and the connector connected, check the following. ∗Output voltage of about 5 V between pins 1 and 3. ∗Generation of 3 pulses between pins 2 and 3 when the fan motor is operating.
  • Page 133 SiBE04-101.book Page 125 Monday, October 15, 2001 3:08 PM SiBE04-101 Checks 5.1.10 Discharge Pressure Check Check No.19 Discharge pressure check Replace compressor. High Open the stop valve. Is the stop valve open? Is the connection pipe deformed? Replace the pipe installed at the site.
  • Page 134 SiBE04-101.book Page 126 Monday, October 15, 2001 3:08 PM Checks SiBE04-101 5.1.12 Outdoor Unit PCB Rotation Pulse Input Check Check No.27 1. Turn OFF the power switch and disconnect the connector S70. 2. Turn ON the power switch and check the voltage at the following positions: •...
  • Page 135 SiBE04-101.book Page 127 Monday, October 15, 2001 3:08 PM SiBE04-101 Checks 5.1.14 Indoor Unit PCB(1) Output Check Check No.35 1. Check the connector’s connection. 2. Check the output of the motor power supply voltage (pins 4-7). 3. Check the output of the motor’s control voltage (pins 3-4). 4.
  • Page 136 SiBE04-101.book Page 128 Monday, October 15, 2001 3:08 PM Checks SiBE04-101 Service Diagnosis...

  • Page 137: Part 7 Removal Procedure

    SiBE04-101.book Page 129 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 7 Removal Procedure 1. For RXD50·60·71J ................130 1.1 Removal of Outer Panels and Fan Motor ..........130 1.2 Removal of Electrical Box..............134 1.3 Removal of Partition Board and Reactor ..........140 1.4 Removal of Sound Insulation for Compressor........

  • Page 138: For Rxd50·60·71J

    SiBE04-101.book Page 130 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 1. For RXD50·60·71J Removal of Outer Panels and Fan Motor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. Removing the outer panels Remove the four screws from the top panel.
  • Page 139 SiBE04-101.book Page 131 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Step Procedure Points Remove the six screws from the front panel. Undo the hook on the top of the motor mount, and release the front panel from the hook of right side and the three hooks of left side.
  • Page 140 SiBE04-101.book Page 132 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Step Procedure Points Remove the screw from the shut-off valve cover. Remove the drip proof Be careful not to lose or damage cover. the drip proof cover. Fit it back into position.
  • Page 141 SiBE04-101.book Page 133 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Step Procedure Points Remove the washer-fitted nut (M6) from the propeller fan. Remove the four screws from the fan motor. Removal Procedure...

  • Page 142: Removal Of Electrical Box

    SiBE04-101.book Page 134 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Removal of Electrical Box Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Disconnect the compressor leads. Disconnect the motorized valve leads. Removal Procedure...
  • Page 143 SiBE04-101.book Page 135 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Step Procedure Points Disconnect the two connectors of the reactor. Disconnect the discharge The lead wire of 4-way valve pipe thermistor. Removal Procedure...
  • Page 144 SiBE04-101.book Page 136 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Step Procedure Points Disconnect the outdoor air thermistor. Remove the screw from the earth terminal. Remove the two screws from the electrical box. Removal Procedure...
  • Page 145 SiBE04-101.book Page 137 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Step Procedure Points Remove the three screws from the right-side panel. Detach the right-side panel by lifting it up. Removal Procedure...
  • Page 146 SiBE04-101.book Page 138 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Step Procedure Points Disconnect the heat exchanger thermistor. Thermistor mounting spring Take out the electrical box. Removal Procedure...
  • Page 147 SiBE04-101.book Page 139 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Step Procedure Points Components layout Removal Procedure...

  • Page 148: Removal Of Partition Board And Reactor

    SiBE04-101.book Page 140 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Removal of Partition Board and Reactor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. Removing the partition board Disconnect the compressor leads from the fixture (wire clip).
  • Page 149 SiBE04-101.book Page 141 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Step Procedure Points 2. Removing the reactor Remove the screw from the reactor. Removal Procedure...

  • Page 150: Removal Of Sound Insulation For Compressor

    SiBE04-101.book Page 142 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Removal of Sound Insulation for Compressor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Undo the sound insulation fixture string and draw out the sound insulation.

  • Page 151: Removal Of 4-Way Valve

    SiBE04-101.book Page 143 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Removal of 4-way Valve Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Before taking this procedure, make sure there is no refrigerant gas left in the Warning refrigerant pipes.

  • Page 152: Removal Of Motorized Valve

    SiBE04-101.book Page 144 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Removal of Motorized Valve Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Remove the motorized valve coil. Remove the 4-way valve coil.

  • Page 153: Removal Of Compressor

    SiBE04-101.book Page 145 Monday, October 15, 2001 3:08 PM SiBE04-101 For RXD50·60·71J Removal of Compressor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. Removing the peripherals To avoid burning damage by gas welding rod, detach the terminal cover, disconnect the compressor leads, and...
  • Page 154 SiBE04-101.book Page 146 Monday, October 15, 2001 3:08 PM For RXD50·60·71J SiBE04-101 Step Procedure Points There is one nut for the compressor. Remove the nut with spanner. Before taking this procedure, make sure there is no refrigerant gas left in Warning the refrigerant pipes.

  • Page 155: Part 8 Appendix

    SiBE04-101.book Page 147 Monday, October 15, 2001 3:08 PM SiBE04-101 Part 8 Appendix 1. Piping Diagrams..................148 1.1 Indoor Units ..................148 1.2 Outdoor Units ..................149 2. Wiring Diagrams..................150 2.1 Indoor Units ..................150 2.2 Outdoor Units ..................151 Appendix...

  • Page 156: Piping Diagrams

    SiBE04-101.book Page 148 Monday, October 15, 2001 3:08 PM Piping Diagrams SiBE04-101 1. Piping Diagrams Indoor Units FTXD50JV1B / FTXD60JV1B / FTXD71JV1B INDOOR UNIT THERMISTOR ON INLET PIPE HEAT EXCHANGER THERMISTOR ON HEAT EXCH. CROSS FLOW FAN FIELD PIPING CuT )

  • Page 157: Outdoor Units

    SiBE04-101.book Page 149 Monday, October 15, 2001 3:08 PM SiBE04-101 Piping Diagrams Outdoor Units RXD50JV1B OUTDOOR UNIT HEAT EXCHANGER OUTDOOR TEMPARATURE THERMISTOR 7.9CuT 7.9CuT 15.9CuT CAPILLARY TUBE 1 7.9CuT 7.9CuT 7.9CuT 7.9CuT REFRIGERANT FLOW CAPILLARY TUBE 2 6.4CuT COOLING HEAT EXCHANGER CAPILLARY TUBE 3 THERMISTOR HEATING...

  • Page 158: Wiring Diagrams

    SiBE04-101.book Page 150 Monday, October 15, 2001 3:08 PM Wiring Diagrams SiBE04-101 2. Wiring Diagrams Indoor Units FTXD50JV1B / FTXD60JV1B / FTXD71JV1B FIELD WIRING. → PCB3 PCB1 PCB2 outdoor 3.15A CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN.

  • Page 159: Outdoor Units

    SiBE04-101.book Page 151 Monday, October 15, 2001 3:08 PM SiBE04-101 Wiring Diagrams Outdoor Units RXD50JV1B / RXD60JV1B / RXD71JV1B C22 , C23 , C24 :CAPACITOR :CURRENT TRANSFORMER :DIODE BRIDGE ( CONDENSER ) FU1 , FU2 :FUSE ( OUTDOOR ) ( DISCHARGE ) IPM100 :INTELLIGENT POWER MODULE L1 , L2 , L3 , L4...
  • Page 160 SiBE04-101.book Page 152 Monday, October 15, 2001 3:08 PM Wiring Diagrams SiBE04-101 Appendix...

  • Page 161: Index

    SiBE04-101.book Page i Monday, October 15, 2001 3:08 PM SiBE04-101 Index Symbols Fan Motor Connector Output Check ....124 Fan Motor or Related Abnormality ....91, 93 * ..........95, 96, 97, 106, 116, 117 Fan Motor Position Signal Check ......126 Numerics Fan Speed Control Indoor Units ............
  • Page 162 SiBE04-101.book Page ii Monday, October 15, 2001 3:08 PM SiBE04-101 OL Action .............102 Outdoor Fan System Check .........120 Service Check ............85 Outdoor Unit PCB Rotation Pulse Input Check ..126 Setting for Long Piping .......... 43 Outdoor Unit Silent Operation ........29 Signal Receiver PCB ........
  • Page 163 SiBE04-101.book Page iii Monday, October 15, 2001 3:08 PM SiBE04-101 Drawings & Flow Charts FTXD50 / 60 / 71J ........... 46 Interrupt Due to OL Action or Thermal Fuse Automatic Operation ..........34 Blow-Out ............102 Compressor Protection Function ......39 Location of Operation Lamp Compressor Seizing ..........104 Floor / Ceiling Suspended Dual Type .....
  • Page 164 SiBE04-101.book Page iv Monday, October 15, 2001 3:08 PM SiBE04-101 Power Supply Abnormalities or Faulty Indoor PCB ..............97 Service Check Function Power Supply Waveforms Check ......121 ARC417 Series ..........85 Power Transistor Check (Capacitor Voltage ARC423 Series ..........86 Check) ............122 Signal Transmission Error (between Indoor and Powerful operation in cooling mode .......32 Outdoor Units) ..........

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