Toshiba RAS-M05J2KVSG-E Service Manual
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Toshiba RAS-M05J2KVSG-E Service Manual

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FILE NO. SVM-20014-2
SERVICE MANUAL
SPLIT TYPE
RAS-M05J2KVSG-E
RAS-M05N4KVSG-E
R32
Revised on March, 2020

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Summary of Contents for Toshiba RAS-M05J2KVSG-E

  • Page 1 FILE NO. SVM-20014-2 SERVICE MANUAL SPLIT TYPE RAS-M05J2KVSG-E RAS-M05N4KVSG-E Revised on March, 2020...

  • Page 2: Table Of Contents

    CONTENTS 1. SAFETY PRECAUTIONS ................3 2. SPECIFICATIONS ..................6 3. REFRIGERANT R32 ...................7 4. CONSTRUCTION VIEWS ................ 15 5. WIRING DIAGRAM .................. 16 6. SPECIFICATIONS OF ELECTRICAL PARTS ......... 17 7. REFRIGERANT CYCLE DIAGRAM ............18 8. CONTROL BLOCK DIAGRAM ..............19 9.

  • Page 3: Safety Precautions

    1. SAFETY PRECAUTIONS Read the precautions in this manual This appliance is fi lled with R32. carefully before operating the unit. (Flammable Material) Information included in the Operation Service personnel should be handing this equipment Manual and/or Installation Manual. with reference to the Installation Manual. For general public use Power supply cord of outdoor unit shall be more than 1.5 mm (H07RN-F or 60245IEC66) polychloroprene...
  • Page 4 DANGER • ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO IN- STALL/MAINTAIN THE AIR CONDITIONER. INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE, ELECTRIC SHOCK OR FIRE. • TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER SWITCHES ARE OFF.
  • Page 5 • For R32 model, use pipes, flare nut and tools which is specified for R32 refrigerant. Using of existing (R22) piping, flare nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. •...

  • Page 6: Specifications

    2. SPECIFICATIONS 2-1. Specification RAS-M05J2KVSG-E, RAS-M05N4KVSG-E Unit model Indoor Outdoor Cooling capacity (kW) Cooling capacity range (kW) Heating capacity (kW) Heating capacity range (kW) Power supply 1Ph/220-240V/50Hz Electric Indoor Operation mode Cooling Heating characteristic Running current 0.19-0.17 0.19-0.17 Power consumption...

  • Page 7: Refrigerant R32

    3. REFRIGERANT R32 3. If a refrigeration gas leakage occurs during This air conditioner adopts the new refrigerant HFC (R32) which does not damage the ozone layer. installation/servicing, be sure to ventilate fully. If the refrigerant gas comes into contact with fire, a The next section describes the precautions for air conditioner using the new refrigerant.
  • Page 8 Table 3-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R32(R410A) 6.35 0.80 0.80 9.52 0.80 0.80 12.70 0.80 0.80 15.88 1.00 1.00 2. Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm.
  • Page 9 d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. ØD By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R32 or conven- tional flare tool. Flare processing dimensions differ according to the type of flare tool.
  • Page 10 Table 3-2-6 Flare and flare nut dimensions for R22 Dimension (mm) Nominal Outer diameter Thickness Flare nut width diameter (mm) (mm) (mm) 6.35 9.52 13.0 13.5 12.70 16.2 16.0 12.9 15.88 19.7 19.0 16.0 19.05 23.3 24.0 19.2 Fig. 3-2-2 Relations between flare nut and flare seal surface 2.
  • Page 11 3-3. Tools 3-3-1. Required Tools The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R32 is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.
  • Page 12 3-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment. When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch.
  • Page 13 1. Be sure to make setting so that liquid can be charged. 2. When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.
  • Page 14 2. Characteristics required for flux 3-5-3. Brazing • Activated temperature of flux coincides with the As brazing work requires sophisticated techniques, brazing temperature. experiences based upon a theoretical knowledge, it must be performed by a person qualified. • Due to a wide effective temperature range, flux is hard to carbonize.

  • Page 15: Construction Views

    4. CONSTRUCTION VIEWS 4-1. Indoor Unit Air filter Air filter Front panel Grille inlet Air outlet Heat exchanger Knock out system 66.5 50 55 66.5 Installation plate hanger 24 97 Wireless remote controller 17.5 Remote controller holder Drain hose (0.4m) Installation plate hanger Installation plate hanger Connecting pipe (0.35m)

  • Page 16: Wiring Diagram

    5. WIRING DIAGRAM COLOR INDICATION RED : RED WHI : WHITE YEL : YELLOW BLK : BLACK GRN & YEL GREEN & YELLOW - 16 -...

  • Page 17: Specifications Of Electrical Parts

    6. SPECIFICATIONS OF ELECTRICAL PARTS 6-1. Indoor Unit Parts name Type Specificat SJM-240-25 AC 220~240V, 25W Fan Motor (for indoor) Room temp. sensor (TA-sensor) 10kΩ at 25°C Heat exchanger temp. sensor (TC-sensor) 10kΩ at 25°C Heat exchanger temp. sensor (TCJ-sensor) 10kΩ...

  • Page 18: Refrigerant Cycle Diagram

    Outer dia. : 6.35mm Thickness : 0.8mm Sectional shape of heat insulator To outdoor unit To outdoor unit Dimension table Outer diameter of refrigerant pipe (mm) Indoor unit   Gas side Liquid side RAS-M05J2KVSG-E 9.52 6.35 RAS-M05N4KVSG-E - 18 -...

  • Page 19: Control Block Diagram

    8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit Indoor Unit Control Panel M.C.U Functions Operation Heat Exchanger Sensor Display • Louver Control Timer Temperature Sensor • 3-minute Delay at Restart for Compressor Display • Motor Revolution Control PURE Infrared Rays Signal Receiver Display •...

  • Page 20: Operation Description

    9. OPERATION DESCRIPTION 9-1. Outline of Air Conditioner Control • Detection of inverter input current and current release operation This air conditioner is a capacity-variable type air conditioner. Its system can control the speed of • Over-current detection and prevention operation to IGBT module (Compressor stop function) compressor motor according to load.
  • Page 21 9-2. Operation Description 1. Basic operation ......................22 1. Operation control ....................22 2. Cooling/Heating operation ..................23 3. AUTO operation ..................... 23 4. DRY operation ......................23 2. Indoor fan motor control ..................... 24 3. Capacity control ......................25 4.

  • Page 22: Operation Control

    Item Operation flow and applicable data, etc. Description 1. Basic 1. Operation control operation Receiving the user’s operation condition setup, the operation statuses of indoor/outdoor units are controlled. 1) The operation conditions are selected by the remote controller as shown in the below. 2) A signal is sent by ON button of the remote controller.

  • Page 23: Basic Operation

    Operation flow and applicable data, etc. Description Item 1. Basic 2. Cooling/Heating operation operation The operations are performed in the following parts by controls according to cooling/heating conditions. 1) Receiving the operation ON signal of the remote controller, the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit.

  • Page 24: Indoor Fan Motor Control

    *5 : Fan speed = (M + –L) x 1/4 + L +0.5 (Linear approximation L(W7) from M+ and L) (Table 1) Indoor fan air flow rate Fan speed Mode RAS-M05J2KVSG-E, RAS-M05N4KVSG-E level Cooling Cool Heat Fan speed Air flow rate (rpm)

  • Page 25: Capacity Control

    Item Operation flow and applicable data, etc. Description The cooling capacity depending on the load is adjusted. 1) The difference between set 3. Capacity control temperature on remote controller According to difference between the setup value of tempera- (Ts) and room temperature (Ta) ture and the room temperature, the capacity is adjusted by is calculated.

  • Page 26: Louver Control

    Item Operation flow and applicable data, etc. Description 5. Louver control This function controls the air direction of the indoor unit. 1) Louver • The position is automatically controlled according to the operation position mode. • The set louver position is stored in memory by the microcomputer, and the louver returns to the stored position when the next operation is performed.

  • Page 27: Swing

    Item Operation flow and applicable data, etc. Description 5. Louver control 3) Swing • Swing operation is performed in range 35° with the Fixed • Swing position as the center. When pressing [SWING] button during • If the swing range exceeded either upper or lower limit position, operation, the louver swing operation is performed in range 35°...

  • Page 28: Temporary Operation

    Item Operation flow and applicable data, etc. Description 6. Temporary Pressing [RESET] button starts the temporary 1) When pressing [RESET] button, the operation operation of [AUTO] operation. When keeping temporary [AUTO] operation starts. [RESET] button pressed for 10 seconds or more, When keeping [RESET] button pressed the temporary [COOL] operation is performed.

  • Page 29: Self-Cleaning Function

    Item Operation flow and applicable data, etc. Description 8. Self-Cleaning 1. Purpose function The Self-Cleaning operation is to minimize the growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean. Unit now performing cooling or dry operation Self-Cleaning operation When the cooling or dry operation shuts...
  • Page 30 Item Operation flow and applicable data, etc. Description 8. Self-Cleaning function 8-1-1. Self-Cleaning diagram Operation display FCU fan rpm is depend on presetting. (500RPM) OPEN (12.7º) FCU louver OPEN CLOSE ON or OFF ON or OFF Timer display depend on presetting of timer function. depend on presetting of timer function.

  • Page 31: Eco Operation

    Item Operation flow and applicable data, etc. Description 9. ECO When pressing [ECO] button on the remote controller, a <Cooling operation> Economic operation is performed. operation 1) The control target temperature <Cooling operation> increase 0.5ºC per hour up to 2ºC This function operates the air conditioner with the difference starting from the set temperature between the set and the room temperature as shown in the...

  • Page 32: Hi-Power Mode

    Item Operation flow and applicable data, etc. Description ([Hi-POWER] button on the remote controller is 11. Hi-POWER Mode pressed) When [Hi-POWER] button is pressed while the indoor unit is in Auto or cooling operation, Hi-POWER mark is indicated on the display of the remote controller and the unit operates as follows.

  • Page 33: Fireplace Operation

    - The compressor speed is controlled as show in noise level of indoor unit is less than usual. the figure. Remarks : RAS-M05J2KVSG-E Quiet mode is unable to work in dry mode. Model RAS-M05N4KVSG-E Quiet mode is appropriate to work with less Cool min (Hz) cooling load and less heating load condition.

  • Page 34: Auto Restart Function

    9-3. Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning three minutes after power is restored. This function is not set to work when shipped from the factory.

  • Page 35: How To Cancel The Auto Restart Function

    9-3-2. How to Cancel the Auto Restart Function To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off. •...

  • Page 36: Parts Name Of Remote Contr Oller

    9-4. Remote control 9-4-1. Remote control and its functions Infrared signal emitter Memory and Preset button ( Start/Stop button ( Mode select button ( Air fl ow button ( Fireplace/8°C button ( ECO button ( Comfort sleep button ( Weekly timer ( Temp for Weekly timer ( "...
  • Page 37 How to set WEEKLY TIMER 1. Press to enter WEEKLY TIMER setting. Blink 2. Press to select desired day in sequence. The sequence of day symbol appears on the LCD. WEEKLY SUMO TUWETHFRSA (All day) 3. Press to select the program number. ●...
  • Page 38 5. Press to select desired operation. 6. Press to select desired temperature. ● The temperature can be set between 17°C and 30°C. 7. Press to select the desired fan speed. 8. Add operations, if required. ● Press to use 8°C operation. (Notes: Fireplace cannot select and memorize in weekly function) ●...
  • Page 39 Edit Weekly timer program To edit the program after confi rming the weekly timer setting, follow steps 1 - 3 below. 1. Press ● The day of the week and the program number of the current day will be displayed. 2.
  • Page 40 To delete programs The individual program 1. Press ● The day of the week and the program number is displayed. ● Select the day to delete the program. 2. Press to select the program number to be deleted. 3. Press ●...
  • Page 41 2. AUTOMATIC OPERATION To automatically select cooling, heating, or fan only operation. Press Press : Select Auto A. : Select the desired temperature. Min 17°C, Max 30°C Press Press 3. Press Press : Select AUTO, LOW , LOW+ , MED , MED+ , HIGH or Quiet...
  • Page 42 6. Hi-POWER OPERATION To automatically control room temperature and airflow for faster cooling or heating operation (except in DRY and FAN ONLY mode) Press Press : Start and stop the operation 7. ECO OPERATION To automatically control room temperature to save energy (except in DRY and FAN ONLY mode) Press : Start and stop the operation.
  • Page 43 10. POWER-SELECTION OPERATION / SILENT OPERATION (OUTDOOR UNIT) Power-Selection ( This function is used when the circuit breaker is shared with other electrical appliances. It limits the maximum current and power consumption to 100%, 75%, or 50% and can be implemented by POWER-SELECTION.
  • Page 44 11. TIMER OPERATION Set the timer when the air conditioner is operating. Setting the ON Timer Setting the OFF Timer Press : Set the desired Press : Set the desired ON timer. OFF timer. Press : Set the timer. Press : Set the timer.

  • Page 45: Name And Functions Of Indications On Remote Controller

    9-4-3. Name and Functions of Indications on Remote Controller [Display] All indications, except for the clock time indicator, are displayed by pressing the button. Transmission mark TIMER and weekly timer indicator This transmission mark indicates when the The time setting for timer operation and weekly remote controller transmits signals to the indoor timer function is indicated.

  • Page 46: Installation Procedure

    10. INSTALLATION PROCEDURE 10-1. Installation Diagram of Indoor and Outdoor Units For the rear left, bottom left and left piping Wall Hook Installation plate Cut out a piece of SPACER from indoor Flat head unit packaging box, roll it and insert wood screw between the indoor unit and wall to tilt the indoor unit for better operation.
  • Page 47 Installation plate × 1 Wireless remote control × 1 Battery × 2 Remote control holder × 1 Toshiba Ultra pure fi lter × 2 Mounting screw × 6 Flat head wood screw × 2 Owner’s Manual × 1 Installation Manual × 1 Flat head wood screw ×...
  • Page 48 10-2-3. Installation/Servicing Tools Changes in the product and components In the case of an air conditioner using R32, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch) •...
  • Page 49 10-3. Indoor Unit 10-3-2. Cutting a hole and mounting installation 10-3-1. Installation place <Cutting a hole> • A place which provides the spaces around the indoor When installing the refrigerant pipes from the rear. unit as shown in the diagram •...
  • Page 50 10-3-3. Wiring Connection <When the installation plate is directly mounted on the wall> Indoor unit Wiring of the connecting cable can be carried 1. Securely fit the installation plate onto the wall by out without removing the front panel. screwing it in the upper and lower parts to hook up the indoor unit.
  • Page 51 < For remote controller > 10-3-4. How to Connect Remote Controller for Wire Operation 1. Remove cover of remote controller by sliding down and take it out. 2. If batteries are exist, please take them out. The combination of using wire controller and batteries may cause of batteries explosion.
  • Page 52 <How to remove the drain hose> *Remark : 1. Recommend to use double insulation lead wire for connect remote control and air conditioner. • The drain hose can be removed by removing the For wire operation, 1 remote control can control screw securing the drain hose and then pulling out only 1 indoor unit the drain hose.
  • Page 53 <In case of right or left piping> NOTE • After scribing slits of the back body with a knife or a If the pipe is bent incorrectly, the indoor unit may making-off pin, cut them with a pair of nippers or an unstably be set on the wall.
  • Page 54 10-3-6. Indoor unit fixing 10-3-7. Drainage 1. Pass the pipe through the hole in the wall, and hook 1. Run the drain hose sloped downwards. the indoor unit on the installation plate at the upper hooks. NOTE 2. Swing the indoor unit to right and left to confirm that •...
  • Page 55 10-3. Others Note : 1. Repeat previous step to reset Remote Control to be A. 10-3-1 . Gas leak test 2. Remote Control A have not “A” display. 3. Default setting of Remote Control from factory is A. Check places for indoor unit (Flarenut connection) F ig.

  • Page 56: How To Diagnose The Trouble

    11. HOW TO DIAGNOSE THE TROUBLE 11-1. First Confirmation 11-1-1. Confirmation of Power Supply Confirm that the power breaker operates (ON) normally. 11-1-2. Confirmation of Power Voltage Confirm that power voltage is AC 220–230–240 ± 10%. If power voltage is not in this range, the unit may not operate normally. 11-1-3.
  • Page 57 11-2. Primary Judgment To diagnose the troubles, use the following methods. 1) Judgment by flashing LED of indoor unit 2) Self-diagnosis by service check remote controller 3) Judgment of trouble by every symptom Firstly use the method 1) for diagnosis. Then, use the method 2) or 3) to diagnose the details of troubles. 11-3.
  • Page 58 11-4. Self-Diagnosis by Remote Controller (Check Code) 1. If the lamps are indicated as shown B to E in Table 11-4-1, execute the self-diagnosis by the remote controller. 2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condition and indicates the in formation of the self-diagnosis on the display of the remote controller with the check codes.
  • Page 59 11-4-2 Caution at Servicing 1. After using the service mode of remote controller finished, press the [ ] button to reset the remote controller to normal function. 2. After finished the diagnosis by the remote controller, turn OFF power supply and turn its ON again to reset the air conditioner to normal operation.
  • Page 60 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Serial signal 1) Defective wiring of the Indoor unit Flashes when 1) to 3) The outdoor unit never and connecting connecting cable or operates...
  • Page 61 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Outdoor Current on inverter circuit All OFF Flashes after 1. Remove connecting lead wire of the is over limit in short time. error is detected compressor, and operate again.
  • Page 62 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status 1. Check installation conditions such as Compressor drive output error. All OFF Flashes after Outdoor packed valve opening, refrigerant (Relation of voltage, current error is detected 8 times*.
  • Page 63 Block distinction Operation of diagnosis function Action and Judgment Check Check Display Block Cause of operation conditioner code code flashing error status The others Compressor does not rotate. All OFF Flashes after 1. Remove connecting lead wire of the (including Because of missed wiring, error is detected compressor, and operate again.
  • Page 64 Block distinction Operation of diagnosis function Action and Judgment Check Check Display Block Cause of operation conditioner code code flashing error status Return signal of the outdoor Indoor unit Flashes when 1. . Check power supply (Rate +10%) The others operates error is detected (including...
  • Page 65 11-5. Judgment of Trouble by Every Symptom 11-5-1. Indoor Unit (Including Remote Controller) (1) Power is not turned on (Does not operate entirely) <Primary check> 1. Is the supply voltage normal? 2. Is the normal voltage provided to the outdoor unit? 3.
  • Page 66 (2) Only the indoor motor fan does not operate <Primary check> 1. Is it possible to detect the power supply voltage (AC220–240V) between on the terminal block? 2. Does the indoor fan motor operate in cooling operation? (In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.) Shut off the power supply once.
  • Page 67 (For AC fan motor) <Inspection procedure> 1. Remove the front panel. (Remove 2 screws.) 2. Remove the cover of the fan motor lead wires. 3. Check AC voltage with CN10 connector while the fan motor is rotating. NOTE : • Using a tester, measure the resistance value of each winding coil. •...
  • Page 68 (3) Troubleshooting for remote controller <Primary check> Check that A or B selected on the main unit is matched with A or B selected on the remote controller. There is no beep from the indoor unit Push the [ ] button. The OPERATION lamp of the air conditioner main unit does not light Does the transmission...
  • Page 69 11-6. How to Check Simply the Main Parts 11-6-1. How to Check the P.C. Board (Indoor Unit) (1) Operating precautions 1) When removing the front panel or the P .C. board, be sure to shut off the power supply breaker. 2) When removing the P .C.
  • Page 70 (3) Check procedures Table 11-6-1 Procedure Check points Causes Turn off the power supply breaker Check whether or not the fuse (F01) Impulse voltage was applied or the and remove the P.C. board is blown. indoor fan motor short-circuited. assembly from electronic parts base.
  • Page 71 11-6-2. P .C . Board Layout +12V [1] Sensor characteristic table : Room temp. sensor TC,TCJ : Heat exchanger temp. sensor TA, TC, TCJ Temperature (°C) - 71 -...
  • Page 72 11-6-3. Indoor Unit (Other Parts) Part name Checking procedure Room temp. (TA) sensor Disconnect the connector and measure the resistance value with tester. Heat exchanger (TC,TCJ) (Normal temp.) sensor Temperature 10°C 20°C 25°C 30°C 40°C Sensor TA, TC, TCJ (kΩ) 20.7 12.6 10.0...

  • Page 73: How To Replace The Main Parts

    12. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities.
  • Page 74 Part name Procedures Remarks Front panel 1) Stop operation of the air conditioner and turn Front panel Air inlet grille off its main power supply. 2) Open two screw caps and securely remove screws (2 pcs.) at the front panel. Screw Screw Screw cap...
  • Page 75 Part name Procedures Remarks Fan motor 1) Follow the procedure item 3 and 4 . 2) Loosen the set screw of the cross flow fan. Cross flow fan Cross flow fan Body back 3.5 mm Set screw Fan motor Vertical louver Hexagon screw driver 3) Remove 2 fixing screws of the motor band.
  • Page 76 Part name Procedures Remarks Drain pan 1) Follow the procedure item 3 . assembly 2) Remove screw holding the electric part cover. Connectors P.C.board Screw Louver motor Electric part cover connector 3) Disconnect the louver motor connector (5P) from P.C. board assembly. 4) Remove fixing screws of the unit display and remove unit display.
  • Page 77 Part name Procedures Remarks Vertical louver 1) Follow the procedure item 3 and 7 . Vertical assembly 2) Remove 2 fixing screws from the base vertical louver louver then remove the vertical louver Screw assembly from the body back. Screw Cross flow fan 1) Follow the procedure item 3 and 4 .
  • Page 78 Part name Procedures Remarks Heat exchanger 1) Follow the procedure in item 3 and 4 . (Evaporator) 2) Remove 2 fixing screws at the left side of the heat exchanger. Screws 3) Remove fixing screw at the upper right side of the heat exchanger.

  • Page 79: Exploded Views And Parts List

    13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit ELECTRICAL PARTS ASSEMBLY Location Part Location Part Description Description 43T00777 FRONT PANEL ASSY 43T39368 MOTOR BAND BACK 43T09585 GRILLE OF AIR INLET ASSY 43T39369 MOTOR BAND FRONT 43T80357 AIR FILTER 43T44668 REFRIGERATION CYCLE ASSY 43T03417 BACK BODY ASSY...
  • Page 80 13-2. Indoor Unit (Part-E) Location Part Location Part Description Description 43T50394 TEMPERATURE SENSOR 43T6W727 PC BOARD ASSY : WRS-LED 43T6V695 TERMINAL(3P) 43T6W726 PC BOARD ASSY 43T50392 SENSOR,THERMOSTAT 43T60480 HOUSING-WiFi 43T62340 CORD-CLAMP 43T50306 TEMPERATURE SENSOR - 80 -...
  • Page 81 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

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