Toshiba RAS-24SKP-ES2 Service Manual
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Toshiba RAS-24SKP-ES2 Service Manual

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FILE NO. SVM-10049

SERVICE MANUAL

AIR CONDITIONER

SPLIT WALL TYPE
RAS-24SKP-ES2 / RAS-24SA-ES2
RAS-24SKHP-ES2 / RAS-24S2AH-ES2
April, 2010

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Summary of Contents for Toshiba RAS-24SKP-ES2

  • Page 1: Service Manual

    FILE NO. SVM-10049 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS-24SKP-ES2 / RAS-24SA-ES2 RAS-24SKHP-ES2 / RAS-24S2AH-ES2 April, 2010...

  • Page 2: Table Of Contents

    FILE NO. SVM-10049 CONTENTS SPECIFICATIONS CONSTRUCTION VIEWS Indoor Unit Outdoor Unit WIRING DIAGRAM RAS-24SKP-ES2 / RAS-24SA-ES2 RAS-24SKHP-ES2 / RAS-24S2AH-ES2 SPECIFICATION OF ELECTRICAL PARTS Indoor Unit (RAS-24SKP-ES2) Outdoor Unit (RAS-24SA-ES2) Indoor Unit (RASP-24SKHP-ES2) Outdoor Unit (RAS-24S2AH-ES2) REFRIGERATION CYCLE DIAGRAM RAS-24SKP-ES2 / RAS-24SA-ES2...
  • Page 3 FILE NO. SVM-10049 INSTALLATION PROCEDURE Safety Cautions Installation Diagram of Indoor and Outdoor Units Installation Indoor Unit Outdoor Unit Test Operation TROUBLESHOOTING CHART Troubleshooting Procedure Basic Check Items Primary Judgement Self-Diagnosis by Remote Control (Check Code) How To Diagnose Faulty Parts Troubleshooting for Indoor unit Troubleshooting for Wiring (Interconnect cable and Serial Signal Wire) Troubleshooting for P.C.

  • Page 4: Specifications

    FILE NO. SVM-10049 1. SPECIFICATIONS MODEL RAS-24SKP-ES2 RAS- - 24SA-ES2 ITEM Cooling 220V 240V Capacity 6.80 6.85 Phase 1∅ Power source 220 - 240 2030 2070 Power consumption Power factor Running 0.3/9.1 0.3/8.6 Current Indoor/Outdoor Starting current Moisture removal lit/h...
  • Page 5 FILE NO. SVM-10049 MODEL RAS-24SKHP-ES2 RAS-24S2AH-ES2 Heating ITEM Cooling 220V 240V 220V 240V Capacity 6.78 6.82 7.28 7.32 Phase 1∅ Power source 220 - 240 2030 2100 1930 2050 Power consumption Power factor Indoor 0.30 Running 9.40 9.10 8.95 8.90 Current Outdoor Starting current...
  • Page 6 7°C Outdoor unit inlet air temperature (WB) 24°C 6°C Note : 2 • Charge refrigerant according to the table below. RAS-24SKP-ES2 / RAS-24SA-ES2 Refrigerant RAS-24SKHP-ES2 / RAS-24S2AH-ES2 No need to charge 15 m or less extra refrigerant Need to charge...

  • Page 7: Construction Views

    FILE NO. SVM-10049 2. CONSTRUCTION VIEWS 2-1. Indoor Unit Heat exchanger Grille Inlet Air inlet Air filter 1050 Front Panel Air outlet Knock out system Knock out system Wireless remote controller Drain hose (0.5m) Hanger Hanger Remote controller holder Connecting pipe (0.49m) Connecting pipe (0.39m) (Flare 6.35)

  • Page 8: Outdoor Unit

    FILE NO. SVM-10049 2-2. Outdoor Unit 56.5 A Detail Drawing (Back leg) Ø 12x17 Hole 56.5 Ø 25 Drain outlet Ø 2- 12x17 Hole B Detail Drawing (Front leg) FAN-GUARD Ø HANDLE PANEL-PIPING-BK Gas-side (Flare Ø 12.70) Liquid-side (Flare Ø 6.35) HANDLE Z View...

  • Page 9: Wiring Diagram

    FILE NO. SVM-10049 3. WIRING DIAGRAM 3-1. RAS-24SKP-ES2 / RAS-24SA-ES2 OUTDOOR POWER SUPPLY UNIT 220 − 240 V ~ 50 Hz OUTDOOR TERMINAL BLOCK CHASSIS SPARK KILLER CAPACITOR 1/L1 2/T1 FAN MOTOR CAPACITOR COMPRESSOR 5/L3 6/T3 MAGNETIC CONTACTOR – 8 –...

  • Page 10: Ras-24Skhp-Es2 / Ras-24S2Ah-Es2

    FILE NO. SVM-10049 3-2. RAS-24SKHP-ES2 / RAS-24S2AH-ES2 MAIN P.C. B OARD (MCC-890) T R A N S F O R M E R POWER SUPPLY DISCHARGE CN06 220- 240 V ~ 50 Hz PIPE SENSOR (TD) GRN&YEL CN05 CN07 OUTDOOR TERMINAL SG01 OUTDOOR...

  • Page 11: Specification Of Electrical Parts

    FILE NO. SVM-10049 4. SPECIFICATION OF ELECTRICAL PARTS 4-1. Indoor Unit (RAS-24SKP-ES2) ts name Specifications MF-340-30-1RT Fan motor (for indoor) DC 340V, 30W Thermo sensor (TA-sensor) ——— 10 kΩ at 25°C Switching Transformer (T01) SWT-77 DC7V, 12 V Microcontroller TMP87CM40ANG-6P68 Heat exchanger sensor ———...

  • Page 12: Indoor Unit (Rasp-24Skhp-Es2)

    FILE NO. SVM-10049 4-3. Indoor Unit (RAS-24SKHP-ES2) Parts name Type Specifications Fan motor (for indoor) MF-340-30-1RT DC 340V, 30W Thermo sensor (TA-sensor) ——— 10 kΩ at 25°C SWT-77 DC 7V, 12V Switching Transformer (T01) Microcontroller TMP87CM40ANG-6P68 Heat exchanger sensor ——— 10 kΩ...

  • Page 13: Refrigeration Cycle Diagram

    FILE NO. SVM-10049 5. REFRIGERATION CYCLE DIAGRAM 5-1. RAS-24SKP-ES2 / RAS-24SA-ES2 Indoor unit Heat exchanger Cooling 0.39 m 0.49 m (Connecting pipe) (Connecting pipe) ∅12.7 ∅6 .35 Cross flow fan O.D.:12.7 mm O.D.:6.35 mm Packed valve Packed valve (∅12.7 ) (∅...

  • Page 14: Ras-24Skhp-Es2 / Ras-24S2Ah-Es2

    FILE NO. SVM-10049 5-2. RAS-24SKHP-ES2 / RAS-24S2AH-ES2 Indoor unit Heat exchanger Cooling 0.39 m 0.49 m Heating (Connecting pipe) (Connecting pipe) Æ12.7 Æ6.35 Cross flow fan O.D.:12.7 mm O.D.:6.35 mm Packed valve Packed valve (Æ12.7) (Æ6.35) Heating Cooling 4-way valve Capillary tube Æ2.0 x 450 Heating Cooling...

  • Page 15: Control Block Diagram

    FILE NO. SVM-10049 6. CONTROL BLOCK DIAGRAM 6.1 RAS-24SKP-ES2 / RAS-24SA-ES2 Indoor Unit Control Panel M.C.U. Operation Functions Heat Exchanger Sensor Display • Louver Control Timer • 3-minute Delay at Restart for Compressor Temperature Sensor Display Filter Sign • Motor Revolution Control...

  • Page 16: Ras-24Skhp-Es2 / Ras-24S2Ah-Es2

    FILE NO. SVM-10049 6.2 RAS-24SKHP-ES2 / RAS-24S2AH-ES2 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 Filter Sign Infrared Rays Signal Receiver • Motor Revolution Control Display PRE DEF.

  • Page 17: Operation Description

    FILE NO. SVM-10049 7. OPERATION DESCRIPTION 7-1. Remote control 7-1-1. Function of Push Putton 1 1 1 1 Infrared signal emitter Start/Stop button Mode select button (MODE) Temperature button (TEMP) Fan speed button (FAN) PRESET Swing louver button (SWING) TEMP Set louver button (FIX) ONE-TOUCH MODE...
  • Page 18 FILE NO. SVM-10049 7-1-2. Display of Remote Control All indications, except for the clock time indicator, are displayed by pressing the button. Transmission mark . TIMER and clock time indicator This transmission mark indicates when the The time setting for timer operation or the clock remote controller transmits signals to the indoor time is indicated.

  • Page 19: Outline Of Air Conditioner Control

    Table 7-2-3 Indoor fan and air flow rate FAN TAP Cooling OPERATION Fan only MODE 1340 1220 1100 1025 RAS-24SKP-ES2 1240 Air flow volume (m 1120 1000 FAN TAP Cooling Fan only OPERATION MODE Heat 1340...

  • Page 20: Description Of Operation Mode

    FILE NO. SVM-10049 7-3. Description of Operation Mode 7-3-2. Cooling operation ([MODE] button on the remote control is set (1) When turning on the breaker, the operation lamp to the cooling operation.) blinks. This means that the power is on (or the power supply is cut off.) (1) The compressor, 4-way valve, (Heat pump model only) outdoor fan and operation display lamp are...
  • Page 21 FILE NO. SVM-10049 7-3-3. Dry operation 7-3-4. Heating operation *Heat pump model only ([MODE] button on the remote control is set ([MODE] button on the remote control is set to the dry operation.) to the heating operation.) (1) The compressor, 4-way valve, (Heat pump model (1) The compressor, 4-way valve, outdoor fan and only) outdoor fan and operation display lamp are operation display lamp are controlled as shown in...

  • Page 22: Cooling Operation

    FILE NO. SVM-10049 (3) The indoor heat exchanger restricts revolving 7-3-5. Automatic operation speed of the fan motor to prevent a cold draft. The ([MODE] button on the remote control is set upper limit of the revolving speed is shown in to the automatic operation.) Fig.

  • Page 23: Description Of Safety And Reliability Prevention Function

    FILE NO. SVM-10049 7-4. Drescription of Safety and Reliability Prevention Function 7-4-1. Low-Temperature Limit Control 7-4-3. Defrost Operation *Heat pump model only The microcontroller detects the indoor heat exchanger When the indoor unit is in heating operation, if the temperature to prevent the indoor heat exchanger from refrigerant evaporation temperature detected by the freezing.

  • Page 24: One-Touch Operation

    Operation mode is set according to room temperature, the same as AUTO mode. Target temperature is 24ºC. Louver position is set as stored position. (Cooling Only Model : RAS-24SKP-ES2) One touch comfort is the fully automated operation that is set according to the preferable condition in a region. Operation...

  • Page 25: Hi Power Operation

    FILE NO. SVM-10049 7-6. Hi POWER Operation 7-7. QUIET Operation ([Hi POWER] button on the remote When the [QUIET] button is pressed, the fan of the control is pressed.) indoor unit will be restricted the revolving speed at speed L− until the [QUIET] button is pressed once When [Hi POWER] button is pressed while the indoor again (cancel Quiet mode).

  • Page 26: Filter Check Lamp

    FILE NO. SVM-10049 7-10. FILTER Check lamp Heating mode *Heat pump model only · The preset temperature will drop down 1ºC after the When the elapsed time reaches 1000 hours after air comfort sleep mode has operated for 1 hour and purifier operation, the FILTER indicator lights.

  • Page 27: Auto Restart Function

    FILE NO. SVM-10049 7-11. 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.
  • Page 28 FILE NO. SVM-10049 7-11-2. 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 29: Self-Cleaning Operation

    FILE NO. SVM-10049 7-12. Self-Cleaning Operation 1. Purpose The Self-Cleaning operation is to minimize the growth of mold, bacteria etc. by running the fan and drying so as to keep Unit now performing cooling or dry operation the inside of the air conditioner clean. Self-Cleaning operation When the cooling or dry operation shuts down, the unit Press “STOP”...
  • Page 30 FILE NO. SVM-10049 7-12-1. Self-Cleaning diagram Operation display FCU fan rpm is depend on presetting. (SL) FCU louver OPEN OPEN (12.7º) CLOSE ON or OFF ON or OFF Timer display depend on presetting of timer function. depend on presetting of timer function. ON or OFF Compressor depend on presetting per room temperature.

  • Page 31: Installation Procedure

    Also, make sure the equipment is properly earthed. • Appliance shall be installed in accordance with national wiring regulations. If you detect any damage, do not install the unit. Contact your TOSHIBA dealer immediately. CAUTION • Exposure of unit to water or other moisture before installation could result in electric shock.
  • Page 32 FILE NO. SVM-10049 REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER Please make absolutely sure that the installation of this appliance is reported to the local power supplier before installation. If you experience any problems, or if the installation is not accepted by the supplier, the service agency will take adequate countermeasures.

  • Page 33: Installation Diagram Of Indoor And Outdoor Units

    Cut the piping hole sloped Shield pipe slightly. Make sure to run the drain hose TOSHIBA New IAQ filter sloped downward. Batteries TOSHIBA New IAQ filter The auxiliary piping can be connected to the left, rear left, rear right, right, bottom right or bottom left.

  • Page 34: Installation

    FILE NO. SVM-10049 8-3. Installation 8-3-1. Optional installation parts Part Parts name Q'ty Code Refrigerant piping Liquid side : ∅6.35 mm : ∅12.70 mm Gas side each Pipe insulating material (polyethylene foam, 8 mm thick) Putty, PVC tapes each <Fixing bolt arrangement of outdoor unit> 525 mm 150 mm 600 mm...
  • Page 35 ∅3 .1 x 16 x 2 Installation plate x 1 Remote control holder x 1 Screw ∅ 4 x 10 x 2 TOSHIBA New IAQ filter x 2 Wireless remote control x 1 TOSHIBA New IAQ filter x 2 Cap water proof x 2...
  • Page 36 FILE NO. SVM-10049 3-3-3. Installation/Servicing Tools <Changes in the product and components> In the case of an air conditioner using R410A, 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 37: Indoor Unit

    FILE NO. SVM-10049 8-4. Indoor Unit 8-4-2. Drilling a Hole and Mounting Instal- lation Plate 8-4-1. Installation Place • A place which provides enough spaces around the <Drilling a hole> indoor unit as shown in the diagram. When install the refrigerant pipes from the rear. •...
  • Page 38 FILE NO. SVM-10049 8-4-3. Electrical Work <When the installation plate is directly 1. The supply voltage must be the same as the mounted on the wall> rated voltage of the air conditioner. 1. Securely fit the installation plate onto the wall by 2.
  • Page 39 FILE NO. SVM-10049 8-4-5. Piping and Drain Hose Installation CAUTION CAUTION • Be sure to refer to the wiring system diagram <Piping and drain hose forming> labeled inside the front panel. • Since condensation results in machine trouble, • Check local electrical regulations for any make sure to insulate both the connecting pipes specific wiring instructions or limitations.
  • Page 40 FILE NO. SVM-10049 <In case of bottom right or bottom left piping> <How to attach the drain cap> • After making slits on the front panel with a knife or 1. Insert hexagonal wrench (4 mm). similar tool, cut them out with a pair of nippers or an equivalent tool.
  • Page 41 FILE NO. SVM-10049 CAUTION Information The lower part of indoor unit may float, due to the • Bind the auxiliary pipes (two) and connecting condition of piping and you cannot fix it to the cable with facing tape tightly. 9 screws installation plate.

  • Page 42: Outdoor Unit

    FILE NO. SVM-10049 8-5. Outdoor Unit 8-5-1. Installation place • A place which provides the spaces around the outdoor unit as shown in the installation diagram Strong wind of indoor and outdoor unit. • A place which can bear the weight of the outdoor unit and does not allow an increase in noise level Fig.
  • Page 43 FILE NO. SVM-10049 8-5-4. Evacuating (Unit : N . m) After the piping has been connected to the indoor unit, Outer dia. you can perform the air purge together at once. Tightening torque of copper pipe ∅6.35 mm 16 to 18 (1.6 to 1.8 kgf·m) AIR PURGE Evacuate the air in the connecting pipes and in the ∅12.70 mm...
  • Page 44 Connecting cable is required. Protective bush Fig. 8-5-9 Model RAS-24SKHP-ES2 RAS-24SKP-ES2 220~240V 50Hz Single phase Power s ource Maximum running current Fig. 8-5-7 Plug s o c k e t & f u s e r a t i n g...

  • Page 45: Gas Leak Test

    FILE NO. SVM-10046 8-6. Others 8-5-7. Refrigerant Piping 8-6-1. Gas Leak Test < Knockout of Pipe Cover > Knockout procedure Flare nut connections (Indoor unit) Rear direction Pipe cover PLATE-TRANSPORTATION • Should be take off and Flare nut connections (Outdoor unit) no need to fix.

  • Page 46: Test Operation

    FILE NO. SVM-10049 8-6-4. Remote Controller A or B Selection 8-6-2. Test Operation Setting To switch the TEST RUN (COOL) mode, press RESET button for 10 seconds (The beeper will make a short beep). When two indoor units are installed in the separated rooms, it is not necessary to change the selector switches.

  • Page 47: Troubleshooting Chart

    FILE NO. SVM-10049 9. TROUBLESHOOTING CHART 9-1. Troubleshooting Procedure : 9-2-2. Incorrect cable connection between Indoor and outdoor units Follow the details of 9-2. Basic Check Items. The indoor unit is connected to the outdoor unit with If there is no trouble corresponding to 9-2, check 4 cables.
  • Page 48 FILE NO. SVM-10049 9-3. Primary Judgement 9-3-2. Failure diagnosis The indoor unit diagnoses the operation condition and 9-3-1. Role of indoor unit controller indicates the information of the self-diagnosis with the The indoor unit controller receives the operation lamps on the display panel of the indoor unit. commands from the remote control and executes them.
  • Page 49 Press [CHECK] button with a tip of pencil to set the remote controller to the service mode. • “ ” is indicated on the display of the remote controller. TOSHIBA Press [ON ] or [OFF ] button If there is no fault with a code, the indoor unit will beep...
  • Page 50 FILE NO. SVM-10049 Table 9-4-1 Block level Diagnosis function Judgement and action Check Check Unit Block Symptom Condition code code status Indoor The indoor thermo sensor (TA) is Operation The lamp on the 1. Check the indoor thermo sensor (TA). P.C.
  • Page 51 FILE NO. SVM-10049 9-5. How To Diagnose Faulty Parts Operation Check item Conceivable principle cause [04 Serial signal error] (Heat pump model) Measure Item by symptoms Does outdoor unit operate? Connect crossover Are 1, 2 and 3 crossover wires properly. wires connected properly? Is connector Connect connector...
  • Page 52 FILE NO. SVM-10049 [09 Other cycle error] (1) (Heat pump model) Does compressor operate? Does inner Check charged amount of refrigerant. Is compressor overload relay Check defective overload. turned off shortly? (in compressor) Check compressor. operate? Failure Replace Is TC sensor resistance value compressor.
  • Page 53 FILE NO. SVM-10049 [0C Indoor TA sensor error] Is CN03 (TA sensor connector) Connect CN03 properly. connected properly? Is TA sensor resistance value Replace TA sensor. (10 kΩ at 25°C) normal? Indoor P.C. board is defective. Replace P.C. board. [0d Indoor TC sensor error] Is CN01 (TC sensor connector) Connect CN01 properly.
  • Page 54 FILE NO. SVM-10049 [19 outdoor TD sensor error] (Heat pump model) Connect connector Is TD sensor connected properly? properly. Is TD sensor resistance value Replace TD sensor. (50 kΩ at 25°C) normal? Outdoor P.C. board is defective. Replace P.C. board. [1E Discharge temp.

  • Page 55: Troubleshooting For Indoor Unit

    FILE NO. SVM-10049 9-6. Troubleshooting for Indoor unit 9-6-1. Power can not be turned on. (The unit does not operate at all.) <Primar check> (1) Is the supply voltage normal? (2) Is the connection to the AC output OK? Operation (3) Is the fuse (F01) blown? Check item Turn off power...
  • Page 56 FILE NO. SVM-10049 9-6-2. Only indoor fan motor does not operate. <Primary check> (1) Is it possible to detect the power supply voltage (200 – 240 V) between 1 and 2 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 5 minutes after it is turned on, to prevent a cold air from blowing in.) –...
  • Page 57 9-6-3. Compressor does not operate. <Primary check> (1) Is the preset temperature higher than the room temperature in cooling operation? (2) Is the crossover cable connected properly? RAS-24SKP-ES2, RAS-24SKP-ES2(HK) <Inspection procedure> Turn on power supply. Refer to 9-5-1 “Power Does OPERATION can not be turned on”.
  • Page 58 FILE NO. SVM-10049 RAS-24SKHP-ES2 <Inspection procedure> AC 70-100V Replace transformer (CN06) of transformer? outdoor P.C. board. − 57 −...
  • Page 59 FILE NO. SVM-10049 Rewire or replace Are all of compressor cords normal? defective cords. Is compressor motor winding normal? Replace compressor. Compressor is defective. (Check winding resistor.) Is capacitor for compressor normal? Replace capacitor. Capacitor is defective. Replace overload relay. Is overload relay normal? Overload relay is defective.
  • Page 60 NOTE: Measure the v oltage f or 2 min utes and 30 seconds after star ting the unit. RAS-24SKP-ES2, RAS-24SKP-ES2(HK) minal b k on indoor side White ester minal b Normal condition : After start operated about 2 minutes and 30 seconds.

  • Page 61: Troubleshooting For P.c. Board

    FILE NO. SVM-10049 <Inspection procedure> 9-8. Troubleshooting for P.C. board (1) If the P.C. board is defective , check for disconnec- 9-8-1. How to check indoor P.C. board tion, burn or discoloration of the copper foil pattern of the P.C. board. <Cautions for handling P.C.
  • Page 62 FILE NO. SVM-10049 Procedure Check points Causes 1. The temperature of the indoor 1. Check whether or not the If the above condition (No. 5) still heat exchanger is extremely high. compressor operates. continues, start the unit in the 2. The connector of the heat 2.
  • Page 63 FILE NO. SVM-10049 Table 9-7-1 Inspection procedure RAS-24SKP-ES2 Procedure Check points Causes Impluse voltage was applied or the Turn off the power supply and Check whether or not the fuse (F01) indoor fan motor short-circuited. remove the P.C. board assembly is blown.
  • Page 64 FILE NO. SVM-09036 Table 9-8-2. Approximate resistance value of thermo sensor (kΩ) Temperature 0°C 10°C 20°C 25°C 30°C Resistance value 33.8 20.35 12.59 10.00 7.99 9-8-2. How to shorten time of restart delay timer 1 Press [SET] button while pressing [CHECK] button with a tip of a pencil.

  • Page 65: Troubleshooting For Remote Control

    FILE NO. SVM-10049 9-9. Troubleshooting for Remote Control <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.

  • Page 66: How To Replace The Main Parts

    FILE NO. SVM-10049 10. 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. •...
  • Page 67 FILE NO. SVM-10049 Part name Procedures Remarks Front panel 4) Press "PUSH" part under the front panel  and remove hooks of the front panel from Installation plate the installation plate. Front panel Press 5) Remove the front panel fixing screws. (4 pcs.) 6) Take off four hooks of panel from rear side.
  • Page 68 FILE NO. SVM-10049 Part name Procedures Remarks Electric parts ‚ 1) Remove screw of earth lead attached to the box assembly end plate of the evaporator. 2) Remove the lead wire cover, and remove connector for the fan motor and connec- tor for the louver motor from the electric parts box assembly.
  • Page 69 FILE NO. SVM-10049 Part name Procedures Remarks ƒ Horizontal louver 1) Remove shaft of the horizontal louver from the back body. (First remove the left shaft, and then remove other shafts while sliding the horizontal louver leftward.) „ Evaporator 1) Follow to the procedure in the item ‚...
  • Page 70 FILE NO. SVM-10049 Part name Procedures Evaporator 4) Remove three fixing screw at the right (Heat exchanger) side of the heat exchanger, and separate the heat exchanger from the back body. (Figure 4, 5) One screw (Figure 4) One screw (Figure 5) Bearing 1) Follow to the procedure in the item...
  • Page 71 FILE NO. SVM-10049 Part name Procedures Remarks Fan motor 1) Follow to the procedure till item „ 2) Loosen the set screw of the cross flow fan. 3) Remove two fixing screws of the motor cover and them remove the motor cover. 4) Remove two more fixing screws of the motor band and remove the motor band.
  • Page 72 FILE NO. SVM-10049 Part name Procedures Remarks Cross flow fan <Caution at reassembling> 1) To incorporate the fan motor incorporate the motor into the position in the following figure, and then install the fan motor. • Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 5.0 mm from closed wall of the main unit.

  • Page 73: Outdoor Unit

    FILE NO. SVM-10046 10-2. Outdoor Unit Part name Procedures Remarks 1) Stop the operation of the air conditioner and turn off Common its main power supply or remove the power supply procedure cord. 2) Remove the Panel front (2 screws ∅4 x 10L) Pressing downward and pulling out toward you.

  • Page 74: Exploded Views And Parts List

    FILE NO. SVM-10049 11. EXPLODED VIEWS AND PARTS LIST 11-1. Indoor Unit (E-Parts Assy) Location Part Location Part Description Description 43T60331 TERMINAL; 3P 43T69885 ASM-PCB-SERV 43T50004 SENSOR; HEAT EXCHANGER (FOR 24SKP-ES2) 43T69005 SENSOR;THERMOSTAT 43T69886 ASM-PCB-SERV (FOR 24SKHP-ES2) 43T69736 43T69747 ASM-STEPPING-MOTOR PC BOARD ASSY;WRS-LED(Made in Thailand) CORD CLAMP MOTOR CORD...

  • Page 75: Indoor Unit

    FILE NO. SVM-10049 11-2. Indoor Unit Location Part Location Part Description Description 43T00524 FRONT PANEL ASSY 43T39023 BAND,MOTOR,RIGHT DOWN (Made in Thailand) 43T44443 (FOR 24SKP-ES2) REFRIGERANT CYCLE ASSEMBLY 43T00554 FRONT PANEL ASSY (FOR 24SKP-ES2) 43T44459 REFRIGERANT CYCLE ASSEMBLY (FOR 24SKHP-ES2) 43T09445 GRILLE OF AIR INLET ASSY (FOR 24SKHP-ES2)

  • Page 76: Outdoor Unit (Ras-24Sa-Es2)

    FRONT PANEL CABINET ASSEMBLY 43T55354 MF CAPACITOR 43T00549 RIGHT PANEL CABINET ASSEMBLY 43T55341 CAPACITOR;PLASTIC-FILM 43T21423 FAN MOTOR;WLF-240-85A 43T33002 SPARK-KILLER 43T20329 PROPELLER FAN 43T60409 TERMINAL BLOCK;5P(30A) 43T47001 NUT FLANGE 43T97001 (Made in Japan) 43T19343 FAN GUARD 43T00552 PLATE FIX MOTOR (TOSHIBA) − 75 −...

  • Page 77: Outdoor Unit (Ras-24S2Ah-Es2)

    FAN MOTOR;WLF-24-85A-1 43T63321 SOLINOID COIL 43T20329 PROPELLER FAN 43T50322 SENSOR; TC NUT FLANGE 43T47001 (Made in Japan) 43T50323 SENSOR; TD 43T19343 FAN GUARD(TOSHIBA) 43T79305 DRAIN NIPPLE 43T04307 PARTITION 43T58301 TRANSFORMER; TT-05 43T39339 MOTOR BASE 43T60325 FILTER;CLAMP 43T00545 FRONT PANEL PIPING CABINET...
  • Page 78 FILE NO. SVM-03010(1) TOSHIBA CARRIER (THAILAND) CO.,LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND. – 87 –...

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