Daikin FTK25JV1NB Manual
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Daikin FTK25JV1NB Manual

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Si-86.book Page i Friday, June 23, 2000 10:26 AM
SIE-86
FTK(X)-J / RK(X)-J Series
Cooling Only
Indoor Unit
FTK25JV1NB
FTK35JV1NB
Outdoor Unit
RK25JV1NB
RK35JV1NB
Heat Pump
Indoor Unit
FTX25JV1NB
FTX35JV1NB
Outdoor Unit
RX25JV1NB
RX35JV1NB
Table of Contents
Inverter Pair
i

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Questions and answers

Katherine
January 19, 2025

Is my inverter a heat pump?

0
1 comments:
Mr. Anderson
February 4, 2025

No, the Daikin FTK25JV1NB inverter is not a heat pump. It is a cooling-only unit.

This answer is automatically generated

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Summary of Contents for Daikin FTK25JV1NB

  • Page 1 Si-86.book Page i Friday, June 23, 2000 10:26 AM SIE-86 Inverter Pair FTK(X)-J / RK(X)-J Series Cooling Only Indoor Unit FTK25JV1NB FTK35JV1NB Outdoor Unit RK25JV1NB RK35JV1NB Heat Pump Indoor Unit FTX25JV1NB FTX35JV1NB Outdoor Unit RX25JV1NB RX35JV1NB Table of Contents...

  • Page 2: Table Of Contents

    Si-86.book Page ii Friday, June 23, 2000 10:26 AM SIE-86 1. Introduction .....................v 1.1 Safety Cautions ..................v Part 1 List of Function ..............1 1. Functions....................2 1.1 Indoor Unit and Outdoor Unit..............2 Part 2 Printed Circuit Board Connector Wiring Diagram .....3 1.
  • Page 3 Si-86.book Page iii Friday, June 23, 2000 10:26 AM SIE-86 5.2 Outdoor Units ..................58 5.3 Faulty PCB .................... 59 5.4 Operation Shutdown Due to High-Pressure Control or Freeze-Up Protection (Thermistor Activation) ........60 5.5 Operation Halt Due to Fan Motor (AC Motor) or Related Abnormality. . 61 5.6 Operation Halt Due to Detection of Thermistor or Related Abnormality 62 5.7 Faulty Indoor Unit PCB................
  • Page 4 Si-86.book Page iv Friday, June 23, 2000 10:26 AM SIE-86 Index .....................i Drawings & Flow Charts ...............iii Table of Contents...

  • Page 5: Introduction

    Si-86.book Page v Friday, June 23, 2000 10:26 AM SIE-86 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 Si-86.book Page vi Friday, June 23, 2000 10:26 AM Introduction SIE-86 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 Si-86.book Page vii Friday, June 23, 2000 10:26 AM SIE-86 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 Si-86.book Page viii Friday, June 23, 2000 10:26 AM Introduction SIE-86 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

    Si-86.book Page 1 Friday, June 23, 2000 10:26 AM SIE-86 Part 1 List of Function 1. Functions....................2 1.1 Indoor Unit and Outdoor Unit..............2 List of Function...

  • Page 10: Functions

    Photocatalytic Filter with UV Lamp — — Modulation Control) Clean Horizontal Scroll, Oval Scroll — — Mold Proof Air Filter Compressor (DAIKIN SCROLL) Swing Compressor (DAIKIN ROTARY) — — Washable Grille Compressor Rotary Compressor Filter Cleaning Indicator — — Reluctance DC Motor —...

  • Page 11: Part 2 Printed Circuit Board Connector Wiring Diagram

    Si-86.book Page 3 Friday, June 23, 2000 10:26 AM SIE-86 Part 2 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram and Name ....4 1.1 FTK25/35J Series, FTX25/35J Series ............. 4 1.2 RK25/35J Series, RX25/35J Series............6 Printed Circuit Board Connector Wiring Diagram...

  • Page 12: Printed Circuit Board Connector Wiring Diagram And Name

    Si-86.book Page 4 Friday, June 23, 2000 10:26 AM Printed Circuit Board Connector Wiring Diagram and Name SIE-86 1. Printed Circuit Board Connector Wiring Diagram and Name FTK25/35J Series, FTX25/35J Series Printed circuit board (1) (Control PCB) Printed circuit board (2) (Signal Receiver PCB) Printed circuit board (3) (Intelligent Eye Sensor PCB) Name of connector 1) S1...
  • Page 13 Si-86.book Page 5 Friday, June 23, 2000 10:26 AM SIE-86 Printed Circuit Board Connector Wiring Diagram and Name P.C.B (1) (Control P.C.B) Detail Printed Circuit Board Connector Wiring Diagram...

  • Page 14: Rk25/35J Series, Rx25/35J Series

    Si-86.book Page 6 Friday, June 23, 2000 10:26 AM Printed Circuit Board Connector Wiring Diagram and Name SIE-86 RK25/35J Series, RX25/35J Series Printed circuit board (1) (Main-PCB) Name of connector 1) S30 Connector for compressor motor (with internal thermostat) 2) S70 Connector for fan motor 3) S80 Connector for 4 WAY VALVE COIL (RX25 ·...
  • Page 15 Si-86.book Page 7 Friday, June 23, 2000 10:26 AM SIE-86 Printed Circuit Board Connector Wiring Diagram and Name P.C.B (1) (Control P.C.B) Detail Printed Circuit Board Connector Wiring Diagram...
  • Page 16 Si-86.book Page 8 Friday, June 23, 2000 10:26 AM Printed Circuit Board Connector Wiring Diagram and Name SIE-86 Printed Circuit Board Connector Wiring Diagram...

  • Page 17: Part 3 Main Function

    Si-86.book Page 9 Friday, June 23, 2000 10:26 AM SIE-86 Part 3 Main Function 1. General Functionality ................10 1.1 Functions of Thermistors ............... 10 1.2 Operating Modes ................... 12 1.3 Frequency Principle................13 1.4 Defrost Control ..................15 1.5 Forced Operation Mode................. 16 1.6 Wide-angle Flaps, Diffuser, Louvres and Autoswing......

  • Page 18: General Functionality

    Si-86.book Page 10 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 1. General Functionality Functions of Thermistors Location of 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 FIELD PIPING...
  • Page 19 Si-86.book Page 11 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality Frequency controlled functions The following table shows the different functions, which are controlled by decreasing or increasing the frequency: Sensor Function Why? How? Reset Malfunction Thermistor Low outdoor outdoor ambient To avoid condensation in By setting a high...

  • Page 20: Operating Modes

    Si-86.book Page 12 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 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 21: Frequency Principle

    Si-86.book Page 13 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality 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.
  • Page 22 Si-86.book Page 14 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 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).

  • Page 23: Defrost Control

    Si-86.book Page 15 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality Defrost Control Principle Defrost control is carried out by reversing the cycle from heating to cooling. Start conditions Defrost control is set by the following conditions: during heating More than 6 minutes after the compressor has started up when condition 1 or 2 in the table below are applicable: Condition...

  • Page 24: Forced Operation Mode

    Si-86.book Page 16 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 Forced Operation Mode 1.5.1 H type Forced mode The following table explains the different forced operation modes, forced cooling and forced heating: Item Forced cooling Forced heating not in the 3-minute stand-by mode not in the 3-minute stand-by mode normal operation mode normal operation mode...

  • Page 25: Wide-Angle Flaps, Diffuser, Louvres And Autoswing

    Si-86.book Page 17 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality Wide-angle Flaps, Diffuser, Louvres and Autoswing 1.6.1 H type Wide-angle flap The large flaps send a large volume of air downwards to the floor. The flap provides an optimum control in cooling, heating and dry mode.
  • Page 26 Si-86.book Page 18 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 1.6.2 J type Outline 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.

  • Page 27: Fan Speed Control For Indoor Units

    Si-86.book Page 19 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality Fan Speed Control for Indoor Units Control mode The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature. This is done through phase control and Hall IC control. For more information about Hall IC, refer to ‘Hall IC check (A6)’...

  • Page 28: Fan Speed Control For Outdoor Units

    Si-86.book Page 20 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 Fan Speed Control for Outdoor Units Control The following drawing explains the fan speed control: For ambient temperature between ˚C. ˚C ˚C outdoor heat exchanger temperature (RL014) Fan off delay When the compressor turns off and T >...

  • Page 29: General Functions

    Si-86.book Page 21 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality General Functions Pre-heat operation When the equipment has stopped and t < 11.5˚C, the compressor is warmed-up by passing a [outside] single-phase (U, V phase) current through the compressor motor to speed up the start. The power consumption is 30-40W.
  • Page 30 Si-86.book Page 22 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 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 31: Intelligent Eye (J Type)

    Si-86.book Page 23 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality 1.10 Intelligent Eye (J type) Outline The function that detects existence of humans in the air-conditioned room and reduces the capacity when no humans are available in the room in order to save electricity by means of a human motion sensor. Processing 1.
  • Page 32 Si-86.book Page 24 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 Others The dry operation can’t command the setting temperature with a remote controller, but internally the set temperature is shifted by 1˚C. Main Function...

  • Page 33: Good Sleep Cooling Control (J Type)

    Si-86.book Page 25 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality 1.11 Good Sleep Cooling Control (J Type) Outline The function to create deep sleeping and to offer good sleep by altering the set tempeatures in certain intervals to give temperature variation to a living space based on “1/f temperature fluctuation” principle, in case of going to bed while air conditioner keeps operating in cooling mode.

  • Page 34: Automatic Operation

    Si-86.book Page 26 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 1.12 Automatic Operation The unit automatically switches the operation mode to cooling or heating to maintain the room temperature at the main unit setting temperature. Detailed 1. Remote controller setting temperature is set as automatic cooling / heating setting temperature (18 to explanation of the 30˚C).

  • Page 35: Input Current Control (H / J Type)

    Si-86.book Page 27 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality 1.13 Input Current Control (H / J Type) 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.

  • Page 36: Freeze Protection Function In Cooling. (H / J Type)

    Si-86.book Page 28 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 1.14 Freeze Protection Function in Cooling. (H / J Type) 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 37: Peak-Cut Control Function (H / J Type)

    Si-86.book Page 29 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality 1.15 Peak-Cut Control Function (H / J Type) 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 (saturation temperature equivalent to head pressure).

  • Page 38: Four-Way Valve Function Compensation (H / J Type)

    Si-86.book Page 30 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 1.16 Four-Way Valve Function Compensation (H / J Type) 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 four-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 39: Compressor Protection Function (H / J Type)

    Si-86.book Page 31 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality 1.17 Compressor Protection Function (H / J Type) 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 40: Wet Operation Protection (H / J Type)

    Si-86.book Page 32 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 1.18 Wet Operation Protection (H / J Type) Outline The lower limit of output frequency is limited in two steps in accordance with outdoor conditions in order to secure the reliability of compressor (suction dryness and differential pressure).

  • Page 41: Dew Condensation Sweating Prevention Function (H / J Type)

    Si-86.book Page 33 Friday, June 23, 2000 10:26 AM SIE-86 General Functionality 1.19 Dew Condensation Sweating Prevention Function (H / J type) 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 42 Si-86.book Page 34 Friday, June 23, 2000 10:26 AM General Functionality SIE-86 Main Function...

  • Page 43: Part 4 System Configuration

    Si-86.book Page 35 Friday, June 23, 2000 10:26 AM SIE-86 Part 4 System Configuration 1. Instruction....................36 1.1 FTK25 / 35J, FTX25 / 35J ..............36 System Configuration...

  • Page 44: Instruction

    Si-86.book Page 36 Friday, June 23, 2000 10:26 AM Instruction SIE-86 1. Instruction FTK25 / 35J, FTX25 / 35J Safety Precautions Read the following warnings and cautions carefully Failure to follow a warning is very likely before operating the system and use it correctly. WARNING to result in such grave consequences This manual classifies the precautions to the user...

  • Page 45: Names Of Parts

    Si-86.book Page 37 Friday, June 23, 2000 10:26 AM SIE-86 Instruction Names of Parts Indoor unit Air purifying filter Front grille Air purifying filters are Air inlet attached to the inside of the air filters. Grille tab Air outlet Louvre (vertical blades) The louvre is inside of the air Indicator lamps outlet.

  • Page 46: Outdoor Unit

    Si-86.book Page 38 Friday, June 23, 2000 10:26 AM Instruction SIE-86 Names of Parts Outdoor unit Outside air temperature sensor It senses the ambient temperature Air inlet around the unit. (Back and side) Refrigerant piping and inter-unit cable Drain hose Air outlet Earth terminal It is inside of this part.
  • Page 47 Si-86.book Page 39 Friday, June 23, 2000 10:26 AM SIE-86 Instruction 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 between the unit and Setting the batteries the remote controller, such as a curtain, the unit will not operate.
  • Page 48 Si-86.book Page 40 Friday, June 23, 2000 10:26 AM Instruction SIE-86 Preparation Before Operation Indoor unit Setting the air purifying filters Setting the clock Open the front grille . Press Hold the grille by the tabs on the two sides and lift it until it stops with a click.
  • Page 49 Si-86.book Page 41 Friday, June 23, 2000 10:26 AM SIE-86 Instruction AUTO • DRY • COOL • HEAT • FAN Operation The air conditioner operates with the settings of your To change the air flow rate setting: choice. From the next time on, the air conditioner will operate Press with the same settings.
  • Page 50 Si-86.book Page 42 Friday, June 23, 2000 10:26 AM Instruction SIE-86 POWERFUL Operation POWERFUL operation quickly maximizes the cooling effect in any operation mode. You can get the maximum capacity with a touch of a button. Pressing the (POWERFUL) button during operation starts POWERFUL operation.
  • Page 51 Si-86.book Page 43 Friday, June 23, 2000 10:26 AM SIE-86 Instruction Adjusting the Air Flow Direction You can adjust the air flow direction to increase your Adjusting the louvre comfort. Adjusting the horizontal blade (flap) Press SWING Every time the button is pressed, " "...

  • Page 52: Timer Operation

    Si-86.book Page 44 Friday, June 23, 2000 10:26 AM Instruction SIE-86 Timer Operation Timer functions are useful for automatically switching the ON TIMER operation air conditioner on or off at night or in the morning. You can Check that the clock is correct. If not, set the clock to the present also use OFF TIMER and ON TIMER in combination.
  • Page 53 Si-86.book Page 45 Friday, June 23, 2000 10:26 AM SIE-86 Instruction Good Sleep Cooling Operation (G-SLEEP) •The "Good Sleep Cooling Operation" makes the 1/f Fluctuating Temperature. It brings you comfortable sleep as it prevents from getting chilied. -SLEEP Press in cooling operation. To change the temperature setting.
  • Page 54 Si-86.book Page 46 Friday, June 23, 2000 10:26 AM Instruction SIE-86 Intelligent Eye Adjusting the angle of the "Intelligent Eye" is the infrared sensor which detecs the human movement. Intelligent-eye sensor SENSOR •You can adjust the angle of the Intelligent-eye Press While the air conditioner sensor to remove the detection area.
  • Page 55 Si-86.book Page 47 Friday, June 23, 2000 10:26 AM SIE-86 Instruction 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 volatile oils, polishing compound, Cleaning the air filters...
  • Page 56 Si-86.book Page 48 Friday, June 23, 2000 10:26 AM Instruction SIE-86 Care and Cleaning Check Cleaning the front grille You may remove the front grille for cleaning. Check that the base, stand and other fittings of the outdoor unit are not decayed CAUTION or corroded.
  • Page 57 Si-86.book Page 49 Friday, June 23, 2000 10:26 AM SIE-86 Instruction 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.
  • Page 58 Si-86.book Page 50 Friday, June 23, 2000 10:26 AM Instruction SIE-86 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?

  • Page 59: Part 5 Service Diagnosis

    Si-86.book Page 51 Friday, June 23, 2000 10:26 AM SIE-86 Part 5 Service Diagnosis 1. Caution for Diagnosis................52 1.1 Troubleshooting with The Operation Lamp ........... 52 2. Problem Symptoms and Measures ............54 3. Service Check Function ................55 3.1 ARC423 Series..................55 4.

  • Page 60: Caution For Diagnosis

    Si-86.book Page 52 Friday, June 23, 2000 10:26 AM Caution for Diagnosis SIE-86 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 61 Si-86.book Page 53 Friday, June 23, 2000 10:26 AM SIE-86 Caution for Diagnosis Troubleshooting Outdoor Unit RK25 / 35J Series with The LED RX25 / 35J Series 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.

  • Page 62: Problem Symptoms And Measures

    Si-86.book Page 54 Friday, June 23, 2000 10:26 AM Problem Symptoms and Measures SIE-86 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 63: Service Check Function

    Si-86.book Page 55 Friday, June 23, 2000 10:26 AM SIE-86 Service Check Function 3. Service Check Function 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 64: Code Indication On The Remote Controller

    Si-86.book Page 56 Friday, June 23, 2000 10:26 AM Code Indication on The Remote Controller SIE-86 4. Code Indication on The Remote Controller Error Codes and Description of Fault Code Indication Description of Problem System 0 0 0 0 0 0 0 0 Normal U U U U 4 4 4 4 Signal transmission error (between indoor and outdoor units)

  • Page 65: Troubleshooting

    Si-86.book Page 57 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting 5. Troubleshooting Indoor Units - : Not used for troubleshooting ∗ : Varies depending on the cases. Indication on the Description of The Fault Details of fault remote controller (Refer to the indicated page.)

  • Page 66: Outdoor Units

    Si-86.book Page 58 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 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 67: Faulty Pcb

    Si-86.book Page 59 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting Faulty PCB (A1) A A A A 1 1 1 1 Remote Controller Display Indoor unit LED Display Method of Evaluation of zero-cross detection of power supply by indoor unit. Malfunction Detection Malfunction...

  • Page 68: Operation Shutdown Due To High-Pressure Control Or Freeze-Up Protection (Thermistor Activation)

    Si-86.book Page 60 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 Operation Shutdown Due to High-Pressure Control or Freeze-Up Protection (Thermistor Activation) (A5) A A A A 5 5 5 5 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...

  • Page 69: Operation Halt Due To Fan Motor (Ac Motor) Or Related Abnormality

    Si-86.book Page 61 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting Operation Halt Due to Fan Motor (AC Motor) or Related Abnormality.(A6) A A A A 6 6 6 6 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 70: Operation Halt Due To Detection Of Thermistor Or Related Abnormality

    Si-86.book Page 62 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 Operation Halt Due to Detection of Thermistor or Related Abnormality (C4,C9,CA) C C C C 4 4 4 4 , , , , C C C C 9 9 9 9 , , , , C C C C A A A A Remote Controller Display Indoor unit LED...

  • Page 71: Faulty Indoor Unit Pcb

    Si-86.book Page 63 Friday, June 23, 2000 10:26 AM SIE-86 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 72: Faulty Indoor Unit Pcb

    Si-86.book Page 64 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 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 73: Power Supply Abnormalities Or Faulty Indoor Printed Circuit Boards

    Si-86.book Page 65 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting Power Supply Abnormalities or Faulty Indoor Printed Circuit Boards(U4) ∗ U U U U 4 4 4 4 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 74: Signal Transmission Error (Between Indoor And Outdoor Units)

    Si-86.book Page 66 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 5.10 Signal Transmission Error (Between Indoor and Outdoor Units) (U4) U U U U 4 4 4 4 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 75: Operation Halt Due To Detection Of Ct Error

    Si-86.book Page 67 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting 5.11 Operation Halt Due to Detection of CT Error(H8) H H H H 8 8 8 8 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 76: Operation Halt Due To Thermistor Error Or Disconnection Detection

    Si-86.book Page 68 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 5.12 Operation Halt Due to Thermistor Error or Disconnection Detection(J3,J6,H9) J J J J 3 3 3 3 , , , , J J J J 6 6 6 6 , , , , H H H H 9 9 9 9 Remote Controller Display Indoor unit LED...

  • Page 77: Operation Halt Due To Compressor Startup Error

    Si-86.book Page 69 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting 5.13 Operation Halt Due to Compressor Startup Error(E6) E E E E 6 6 6 6 Remote Controller Display Indoor unit LED Display Method of Compressor startup errors are detected using input current detected by CT and compressor’s operation Malfunction frequency.

  • Page 78: Output Overcurrent

    Si-86.book Page 70 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 5.14 Output Overcurrent (L5) L L L L 5 5 5 5 Remote Controller Display Indoor unit LED Display Method of Detection of output overcurrent based on current flowing in DCCT. Malfunction (Inverter direct current part) Detection...
  • Page 79 Si-86.book Page 71 Friday, June 23, 2000 10:26 AM SIE-86 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 Check No.3 Is stop valve fully open? Fully open stop valve.

  • Page 80: Faulty Outdoor Unit Pcb

    Si-86.book Page 72 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 5.15 Faulty Outdoor Unit PCB ∗ Remote Controller Display 1 ∗ 2 ∗ 3 ∗ 4 ∗ Indoor unit LED Display Method of The proper program operation of the microcomputer is checked by the program. Malfunction Detection Malfunction...

  • Page 81: Faulty Outdoor Unit Pcb And Transmitting/Receiving Circuit

    Si-86.book Page 73 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting 5.16 Faulty Outdoor Unit PCB and Transmitting/Receiving Circuit ∗ Remote Controller Display 1 ∗ 2 ∗ 3 ∗ 4 ∗ 3 3 3 3 Indoor unit LED Display Method of 1.

  • Page 82: Operation Halt Due To Detection Of Input Over Current

    Si-86.book Page 74 Friday, June 23, 2000 10:26 AM Troubleshooting SIE-86 5.17 Operation Halt Due to Detection of Input Over Current (E8) E E E E 8 8 8 8 Remote Controller Display 5 5 5 5 Indoor unit LED Display Method of Input over current is checked using the input current detected by the CT during compressor operation.
  • Page 83 Si-86.book Page 75 Friday, June 23, 2000 10:26 AM SIE-86 Troubleshooting ∗ Internal wiring errors can cause an input over current. If the equipment stops due to an input over current Troubleshooting after the wires are disconnected and connected again for parts replacement, etc., check for wiring errors. Re-start the equipment, and Check No.3 measure the input current.

  • Page 84: Check

    Si-86.book Page 76 Friday, June 23, 2000 10:26 AM Check SIE-86 6. Check How to Check 6.1.1 Power transistor check Capacitor voltage check (CHEK 3) Check No.3 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 85 Si-86.book Page 77 Friday, June 23, 2000 10:26 AM SIE-86 Check < 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 86 Si-86.book Page 78 Friday, June 23, 2000 10:26 AM Check SIE-86 Power Transistor Output Check (CHEK 4) 6.1.2 Check No.4 Measure the output current and voltage of the power transistor. Output Current Remove the front panel, and measure the current in the red, yellow and blue wire harness inside the Measurement compressor using a clamp meter.
  • Page 87 Si-86.book Page 79 Friday, June 23, 2000 10:26 AM SIE-86 Check Thermistor Resistance Check No.5 6.1.3 Check No.5 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. Thermistor R25˚C=20kΩ...
  • Page 88 Si-86.book Page 80 Friday, June 23, 2000 10:26 AM Check SIE-86 Installation Condition Check No.6 6.1.4 Check No.6 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 89 Si-86.book Page 81 Friday, June 23, 2000 10:26 AM SIE-86 Check Rectifier Check No.11 6.1.5 Check No.11 There are several different terminal position patterns. Therefore, be sure to check the terminal marks. Negative ( ) terminal of tester (positive terminal ( for digital tester) Positive ( ) terminal of tester (negative...
  • Page 90 Si-86.book Page 82 Friday, June 23, 2000 10:26 AM Check SIE-86 Power Supply Waveforms Check No.13 6.1.7 Check No.13 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 91 Si-86.book Page 83 Friday, June 23, 2000 10:26 AM SIE-86 Check Inverter Units Hall IC Check No.16 6.1.9 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 92 Si-86.book Page 84 Friday, June 23, 2000 10:26 AM Check SIE-86 Service Diagnosis...

  • Page 93: Part 6 Removal Procedure

    Si-86.book Page 85 Friday, June 23, 2000 10:26 AM SIE-86 Part 6 Removal Procedure 1. For FTK25J, FTK35J, FTX25J, FTX35J ..........86 1.1 Removal of Air Filter ................86 1.2 Removal of Front Grille................88 1.3 Removal of Horizontal Blade and Vertical Blade........90 1.4 Removal of Switch Box, PC Board and Swing Motor ......

  • Page 94: For Ftk25J, Ftk35J, Ftx25J, Ftx35J

    Si-86.book Page 86 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 1. For FTK25J, FTK35J, FTX25J, FTX35J Removal of Air Filter Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1.
  • Page 95 Si-86.book Page 87 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Step Procedure Points 3. Opening and shutting front panel Hook a finger onto the Support the front panel by one projection part provided on hand, while remove the rotation axis the both sides of the unit’s at the upper center by the other panel and open up the...

  • Page 96: Removal Of Front Grille

    Si-86.book Page 88 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Removal of Front Grille Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. Opening and closing of service cover Remove a service cover mounting screw.
  • Page 97 Si-86.book Page 89 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Step Procedure Points Disengage the two hooks At the upper part there are two on the upper part. hooks in the left and the right. In case that the hooks are Disengage the hooks by not pressed from above,...

  • Page 98: Removal Of Horizontal Blade And Vertical Blade

    Si-86.book Page 90 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Removal of Horizontal Blade and Vertical Blade Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. Remove horizonal blade. Lift horizontal blade to Screw stoppers inside the flap open position.
  • Page 99 Si-86.book Page 91 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Step Procedure Points For restoring. 1. Since the key pattern hook is provided on the left side, insert the edge of the blade to the tip while rotating it.

  • Page 100: Removal Of Switch Box, Pc Board And Swing Motor

    Si-86.book Page 92 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Removal of Switch Box, PC Board and Swing Motor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Remove front grill.
  • Page 101 Si-86.book Page 93 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Step Procedure Points Remove a screw on the The switch box can be removed terminal strip. instead of disengaging the terminal strip. Remove a screw on the switch box.
  • Page 102 Si-86.book Page 94 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Step Procedure Points 2. Removal of printed circuit board Remove the shelter. Disengage the front plate of the switch box. Disengage the knobs by pushing the two hooks at the top and the bottom.
  • Page 103 Si-86.book Page 95 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Step Procedure Points Disengage the four knobs on the back of the display printed circuit board. Display printed circuit board. Removal Procedure...
  • Page 104 Si-86.book Page 96 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Step Procedure Points Control printed circuit The control printed circuit board board. is integrated with the power supply printed circuit board. 3. Remove swing motor assembly.

  • Page 105: Removal Of Heat Exchanger

    Si-86.book Page 97 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Removal of Heat Exchanger Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Conduct pump-down Warning! operation. If gas leaks,repair the leak Remove the installation location, then connect all frame from the mounting...
  • Page 106 Si-86.book Page 98 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Step Procedure Points Pull auxiliary pipe forward Be careful to prevent pipe to an angle of 10 to 20 deformation. degrees. Disengage hooks located right and left side, and pull heat exchanger foward.

  • Page 107: Install Of Drain Plug

    Si-86.book Page 99 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Install of Drain Plug Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Disconnect drain hose. The drain pan is integrated with the bottom plate.

  • Page 108: Removal Of Fan Rotor And Motor

    Si-86.book Page 100 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Removal of Fan Rotor and Motor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Remove heat exchanger. To remove right side panel, remove three screws.
  • Page 109 Si-86.book Page 101 Friday, June 23, 2000 10:26 AM SIE-86 For FTK25J, FTK35J, FTX25J, FTX35J Step Procedure Points Loosen the hexagon head set screw on the fan rotor. Remove the motor and fan rotor. Remove a screw on the left side panel. Removal Procedure...
  • Page 110 Si-86.book Page 102 Friday, June 23, 2000 10:26 AM For FTK25J, FTK35J, FTX25J, FTX35J SIE-86 Step Procedure Points Disengage a hook from the backward. Since the fan bearing is made of rubber, push it strongly off from the inside. The bearing can be removed just as the left-side plate is attached with.

  • Page 111: For Rk25J, Rk35J, Rx25J, Rx35J

    Si-86.book Page 103 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J 2. For RK25J, RK35J, RX25J, RX35J Removal of External Casing Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points The stop valve cover can be removed when the...
  • Page 112 Si-86.book Page 104 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Step Procedure Points Remove the three screws at the left side. Remove the one fixed The left side plate and the screw in the rear of the top bellmouth can be removed all at plate.

  • Page 113: Removal Of Bellmouth And Left Side Plate

    Si-86.book Page 105 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J Removal of Bellmouth and Left Side Plate Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points The bellmouth is attached Remove the bellmouth, with two screws and four beginning the front plate after...

  • Page 114: Removal Of Pc Board And Switch Box

    Si-86.book Page 106 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Removal of PC Board and Switch Box Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. To remove the shelter. The shelter has five hooks.
  • Page 115 Si-86.book Page 107 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J Step Procedure Points Disconnect the fan motor connector (S70). Disconnect the two There is another reactor rocated connectors of the reactor. on bottom frame for JV1NB Further, disengage the model.
  • Page 116 Si-86.book Page 108 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Step Procedure Points Disconnect the connector (S91) of the thermister. Remove the ground wire. Disconnect the wires from the terminal strip. Removal Procedure...
  • Page 117 Si-86.book Page 109 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J Step Procedure Points 3. Remove the printed circuit board. Remove the three screws fixing the printed circuit board. Since the radiating fins are available underneath, remove the screw while supporting the board by hand.
  • Page 118 Si-86.book Page 110 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Step Procedure Points 4. To remove the switch box. Remove the three screws fixing the switch box. Lift and remove the switch box. Removal Procedure...

  • Page 119: Removal Of Propeller Fan And Fan Motor

    Si-86.book Page 111 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J Removal of Propeller Fan and Fan Motor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points Disconnect the fan motor Remove the external plates and connector S70.

  • Page 120: Removal Of Compressor Noise Absorption Pad

    Si-86.book Page 112 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Removal of Compressor Noise Absorption Pad Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. To remove the right side plate.
  • Page 121 Si-86.book Page 113 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J Step Procedure Points Pull out the body of the noise absorption pad. Pull out the top pad of the Since the slit prepared for the noise absorption (a).

  • Page 122: Removal Of Partition Plate And Reactor

    Si-86.book Page 114 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Removal of Partition Plate and Reactor. Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. To remove the partition plate. Disengage the lead wires from the wire clip.
  • Page 123 Si-86.book Page 115 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J Step Procedure Points When restoring the partition plate, put the hook into the bottom frame. 2. To remove the reactor The reactor can be removed by removing the fixed screw.

  • Page 124: Removal Of Four-Way Valve

    Si-86.book Page 116 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Removal of Four-way Valve. Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. To remove the parts around the four-way valve.
  • Page 125 Si-86.book Page 117 Friday, June 23, 2000 10:26 AM SIE-86 For RK25J, RK35J, RX25J, RX35J Step Procedure Points Begin your work after recognizing complete empty Caution of refrigerant in the Be careful about four-way valve, refrigerant circuit. pipes and so on , which were heated up by a gas brazing Provide a protective sheet machine, so as not to get burnt...

  • Page 126: Removal Of Compressor

    Si-86.book Page 118 Friday, June 23, 2000 10:26 AM For RK25J, RK35J, RX25J, RX35J SIE-86 Removal of Compressor Procedure Warning Be sure to turn off all power supplies before disassembling work. Step Procedure Points 1. To Remove the Parts Around Be careful so as not to burn the the Compressor.

  • Page 127: Part 7 Others

    Si-86.book Page 119 Friday, June 23, 2000 10:26 AM SIE-86 Part 7 Others 1. Others ....................120 1.1 Explanation..................120 Others...

  • Page 128: Others

    Si-86.book Page 120 Friday, June 23, 2000 10:26 AM Others SIE-86 1. Others Explanation 1.1.1 Test Run from The Remote Controller (For Heat Pump Model Only) Trial Operation and Testing 1. Measure the supply voltage and make sure that it falls in the specified range. 2.
  • Page 129 Si-86.book Page 121 Friday, June 23, 2000 10:26 AM SIE-86 Others 1.1.2 Method of Operating Air Conditioners Individually (When Two Units are Installed in One Room) For Cooling Only and Heat Pump Model How to set the different addresses. When two indoor units are installed in one room, the two wireless remote controllers can be set for different addresses.
  • Page 130 Si-86.book Page 122 Friday, June 23, 2000 10:26 AM Others SIE-86 1.1.5 Adjusting the Angle of the Intelligent-eye Sensor Once installation of the indoor unit is complete, adjust the angle of the Intelligent-eye sensor to ensure the detection area properly covers the room. (Adjustable angle : 15˚...

  • Page 131: Part 8 Appendix

    Si-86.book Page 123 Friday, June 23, 2000 10:26 AM SIE-86 Part 8 Appendix 1. Piping Diagram..................124 1.1 Indoor Unit ................... 124 1.2 Outdoor Unit ..................125 2. Wiring Diagram ...................127 2.1 Indoor Unit ................... 127 2.2 Outdoor Unit ..................129 Appendix...

  • Page 132: Piping Diagram

    Si-86.book Page 124 Friday, June 23, 2000 10:26 AM Piping Diagram SIE-86 1. Piping Diagram Indoor Unit 1.1.1 Cooling Only and Heat Pump INDOOR UNIT HEAT EXCHANGER 7.0CuT 7.0CuT 7.0CuT CROSS FLOW FAN 7.0CuT FAN MOTOR FIELD PIPING ( 6.4CuT ) FTK25- FIELD PIPING 9.5CuT...

  • Page 133: Outdoor Unit

    Si-86.book Page 125 Friday, June 23, 2000 10:26 AM SIE-86 Piping Diagram Outdoor Unit 1.2.1 Cooling Only RK25JV1NB OUTDOOR UNIT HEAT EXCHANGER 7.9CuT 7.9CuT CAPILLARY TUBE 7.9CuT 6.4CuT FIELD PIPING 7.9CuT ( 6.4CuT ) 7.9CuT LIQUID STOP VALVE PROPELLER FAN FIELD PIPING 9.5CuT 9.5CuT...
  • Page 134 Si-86.book Page 126 Friday, June 23, 2000 10:26 AM Piping Diagram SIE-86 1.2.2 Heat Pump RX25JV1NB OUTDOOR UNIT HEAT EXCHANGER 7.9CuT 7.9CuT CAPILLARY TUBE 1 7.9CuT 6.4CuT 7.9CuT CAPILLARY TUBE 2 PROPELLER FAN 9.5CuT FIELD PIPING REVERSING SOLENOID ( 6.4CuT ) LIQUID VALVE STOP VALVE...

  • Page 135: Wiring Diagram

    Si-86.book Page 127 Friday, June 23, 2000 10:26 AM SIE-86 Wiring Diagram 2. Wiring Diagram Indoor Unit 2.1.1 Cooling Only FTK25JV1NB FTK35JV1NB PCB3 PCB1 INTELLIGENT- → SENSOR 3.15A TERMINAL outdoor PCB2 CENTRALIZED CONTROL FIELD WIRING. LED3 LED1 LED2 CAUTION NOTE...
  • Page 136 Si-86.book Page 128 Friday, June 23, 2000 10:26 AM Wiring Diagram SIE-86 2.1.2 Heat Pump FTX25JV1NB FTX35JV1NB PCB3 PCB1 INTELLIGENT- → TERMINAL SENSOR 3.15A outdoor CENTRALIZED CONTROL PCB2 LED3 LED1 LED2 / YLW FIELD WIRING. CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY SIGNAL...

  • Page 137: Outdoor Unit

    Si-86.book Page 129 Friday, June 23, 2000 10:26 AM SIE-86 Wiring Diagram Outdoor Unit 2.2.1 Cooling Only RK25JV1NB, RK35JV1NB MRM20 PCB1 indoor PCB2 MRM10 TAB1 TAB2 POWER SUPPLY AC 230V ~ 50Hz 3.15A FIELD WIRING. outdoor TRM1 : PROTECTIVE EARTH C35 , C1R , C2R : CAPACITOR : CURRENT TRANSFORMER...
  • Page 138 Si-86.book Page 130 Friday, June 23, 2000 10:26 AM Wiring Diagram SIE-86 2.2.2 Heat Pump RX25JV1NB, RX35JV1NB MRM20 PCB1 indoor PCB2 MRM10 TAB1 TAB2 POWER SUPPLY AC 230V ~ 50Hz 3.15A FIELD WIRING. outdoor TRM1 : PROTECTIVE EARTH MRC/W C35 , C1R , C2R : CAPACITOR : CURRENT TRANSFORMER : DIODE BRIDGE...
  • Page 139 Si-86.book Page i Friday, June 23, 2000 10:26 AM SIE-86 Index Symbols Installation Condition Check ........80 Instruction * ............63, 64, 65, 72, 73 FTK25 / 35J, FTX25 / 35J ....... 36 Intelligent Eye (J type) ........... 23 Inverter Units Compressor/refrigerant A1 ................59 System Check ..........
  • Page 140 Si-86.book Page ii Friday, June 23, 2000 10:26 AM SIE-86 Removal of External Casing .........103 Removal of Fan Rotor and Motor ......100 Removal of Four-way Valve.........116 Removal of Front Grille ..........88 Removal of Heat Exchanger ........97 Removal of Horizontal Blade and Vertical Blade ...90 Removal of Partition Plate and Reactor.
  • Page 141 Si-86.book Page iii Friday, June 23, 2000 10:26 AM SIE-86 Drawings & Flow Charts Installation Condition Check ........80 Instruction Adjusting the Angle FTK25 / 35J, FTX25 / 35J ....... 36 of the Intelligent-eye Sensor ......122 Inverter features ............ 14 Automatic Operation ..........26 Inverter Units Compressor/refrigerant System Check ..........
  • Page 142 Si-86.book Page iv Friday, June 23, 2000 10:26 AM SIE-86 Thermistor Resistance Check ........79 Trial operation from Remote Controller ....120 Troubleshooting with The LED Indication ....53 Wet Operation Protection (H / J Type) ....32 Wide-angle Flaps, Diffuser, Louvres and Autoswing ..........17 Wiring Diagram Indoor Unit .............127 Outdoor Unit ..........129...

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