Toshiba RAS-10UKV-E Service Manual
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Toshiba RAS-10UKV-E Service Manual

Split wall type air-conditioner
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FILE NO. SVM-02007
SERVICE MANUAL
AIR-CONDITIONER
SPLIT WALL TYPE
RAS-10UKV -E / RAS-10UAV-E
Apr., 2002

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Summary of Contents for Toshiba RAS-10UKV-E

  • Page 1 FILE NO. SVM-02007 SERVICE MANUAL AIR-CONDITIONER SPLIT WALL TYPE RAS-10UKV -E / RAS-10UAV-E Apr., 2002...

  • Page 2: Table Of Contents

    FILE NO. SVM-02007 CONTENTS 1. SPECIFICATIONS 1-1. Specifications 2. REFRIGERANT R-410A 2-1. Safety During Installation/Servicing 2-2. Refrigerant Piping Installation 2-3. Tools 2-4. Recharging of Refrigerant 2-5. Brazing of Pipes 3. CONSTRUCTION VIEWS 3-1. Indoor Unit 3-2. Outdoor Unit 4. WIRING DIAGRAM 4-1.
  • Page 3 FILE NO. SVM-02007 10. HOW TO DIAGNOSE THE TROUBLE 10-1. First Confirmation 10-2. Primary Judgement 10-3. Judgement by Flashing LED of Indoor Unit 10-4. Self-Diagnosis by Remote Control (Check Code) 10-5. Judgement of Trouble by Every Symptom 10-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E 10-7.

  • Page 4: Specifications

    FILE NO. SVM-02007 1. SPECIFICATIONS 1-1. Specifications Unit model Indoor RAS-10UKV-E Outdoor RAS-10UAV-E Current limited — Cooling capacity (kW) Cooling capacity range (kW) 0.9 – 3.0 Heating capacity (kW) Heating capacity range (kW) 0.7 – 4.0 Power supply 220 – 240V –1Ph –50/60Hz...

  • Page 5: Operation Characteristic Curve

    FILE NO. SVM-02007 1-2. Operation Characteristic Curve <Cooling> <Heating> Conditions Conditions Indoor : DB 27°C/WB 19°C Indoor : DB 20°C Outdoor : DB 35°C Outdoor : DB 7°C/WB 6°C Air flow : High Air flow : High Pipe lengthh : 5m Pipe lengthh : 5m 230V 230V...

  • Page 6: Refrigerant R-410A

    FILE NO. SVM-02007 2. REFRIGERANT R-410A This air conditioner adopts the new refrigerant HFC (5) After completion of installation work, check to (R-410A) which does not damage the ozone layer. make sure that there is no refrigeration gas leakage. The working pressure of the new refrigerant R-410A is If the refrigerant gas leaks into the room, coming 1.6 times higher than conventional refrigerant (R-22).
  • Page 7 FILE NO. SVM-02007 Table 2-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R-410A R-22 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 b) Socket Joints For copper pipes, flare joints or socket joints are Socket joints are such that they are brazed for used.
  • Page 8 FILE NO. SVM-02007 Table 2-2-3 Dimensions related to flare pr ocessing f or R-410A A (mm) Outer Nominal Thickness diameter Conventional flare tool Flare tool for R-410A diameter (mm) (mm) clutch type Clutch type Wing nut type 6.35 0 to 0.5 1.0 to 1.5 1.5 to 2.0 9.52...
  • Page 9 FILE NO. SVM-02007 Fig. 2-2-2 Relations between flare n ut and flare seal surface (2) Flare Connecting Procedures and Precautions When it is strong, the flare nut may crack and a) Make sure that the flare and union portions do may be made non-removable.

  • Page 10: Tools

    FILE NO. SVM-02007 2-3. Tools 2-3-1. Required tools The service port diameter of packed valve of the outdoor unit in the air conditioner using R-410A 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 ∅12.70 copper pipe) of the refrigerant piping are lengthened.

  • Page 11: Recharging Of Refrigerant

    FILE NO. SVM-02007 2-4. 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 indi- cated -0.1 Mpa (-76 cmHg), place the handle Low in the fully closed position, and turn off the Connect the charge hose to packed valve service...

  • Page 12: Brazing Of Pipes

    FILE NO. SVM-02007 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. It is necessary for charging refrigerant under condition of liquid because R-410A is mixed type of refrigerant. 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 13 FILE NO. SVM-02007 (2) Characteristics required f or flux 2-5-3. Brazing • Activated temperature of flux coincides with the As brazing work requires sophisticated techniques, brazing temperature. experiences based upon a theoretical knowledge, it • Due to a wide effective temperature range, flux must be performed by a person qualified.

  • Page 14: Construction Views

    FILE NO. SVM-02007 3. CONSTR UCTION VIEWS 3-1. Indoor Unit Front panel Air filter Air inlet Heat exchanger Back body Air outlet Knock out system Knock out system Hanger Connecting pipe (0.43m) Drain hose (0.54m) (Flare ˘6.35) Hanger Connecting pipe (0.33m) (For 07,10 series ;...

  • Page 15: Outdoor Unit

    FILE NO. SVM-02007 3-2. Outdoor Unit A Detail Drawing (Back Leg) B Detail Drawing (Front Leg) R 15 ∅6 Hole ∅6 Hole R 15 ∅11x14 Hole R 5.5 ∅25Drain outlet 2-∅11x14 hole (for ∅8-∅10 anchor bolt) Fan guard Cover PV ∅420 (11) 273.5 (pitch)

  • Page 16: Wiring Diagram

    FILE NO. SVM-02007 4. WIRING DIAGRAM 4-1. Indoor Unit Table 4-1-1 Simple Check for Failure Diagnosis Check Item Diagnosis Result Check if the OPERATION indicator goes on and off when the OPERATION main switch or breaker is turned on. INDICATOR (Check the primary and secondary voltage of the transformer.) Check the power supply voltage between 1 and 2.

  • Page 17: Outdoor Unit

    FILE NO. SVM-02007 4-2. Outdoor Unit COIL FOR 4 WAY VALVE THERMOSTAT FOR COMPRESSOR REACTOR POWER CN600 CN602 CN08 CN07 CN701 CN500 SUPPLY 220-240V~ SURGE REALY 50/60Hz ABSORBER VARISTOR FUSE POWER RELAY 15A CN01 BLK CN03 INDOOR UNIT ELECTRONIC STARTER CN02 FUSE T3.15A...

  • Page 18: Specification Of Electrical Parts

    FILE NO. SVM-02007 5. SPECIFICATION OF ELECTRICAL PARTS 5-1. Indoor Unit Parts name Type Specifications Fan motor (for indoor) ICF-340-30-2 DC 340V, 30W Thermo. sensor (TA-sensor) ——— 10k at 25°C DC-DC transformer (T01) SWT-70 DC 390V, Secondary DC 15V, 12V, 7V Microcomputer ———...

  • Page 19: Refrigerant Cycle Diagram

    FILE NO. SVM-02007 6. REFRIGERANT CYCLE DIAGRAM 6-1. Refrigerant Cycle Diagram Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Pressure measurement Deoxidized copper pipe Max. :10m Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.80mm Sectional shape Deoxidized copper pipe of heat insulator...

  • Page 20: Operation Data

    FILE NO. SVM-02007 6-2. Operation Data <Cooling> Temperature Heat exchanger Standard Indoor Outdoor Compressor Model condition (°C) pipe temp. pressure revolution name P (MPa) mode mode (rps) Indoor Outdoor T1 (°C) T2 (°C) 27/19 35/– 10UKV-E 13.5 High High <Heating> Temperature Heat exchanger Standard...

  • Page 21: Control Block Diagram

    FILE NO. SVM-02007 7. CONTROL BLOCK DIAGRAM 7-1. Indoor Unit Indoor Unit Control Panel M.C.U. Functions Operation Heat Exchanger Sensor • Louver Control Display Timer • 3-minute Delay at Restart for Compressor Temperature Sensor Display Filter Sign • Motor Revolution Control Infrared Rays Signal Receiver Display PRE DEF.

  • Page 22: Outdoor Unit (Inverter Assembly)

    FILE NO. SVM-02007 7-2. Outdoor Unit (Inverter Assembly) – 21 –...

  • Page 23: Operation Description

    FILE NO. SVM-02007 8. OPERATION DESCRIPTION (1) Role of indoor unit controller 8-1. Outlined of Air Conditioner Control The indoor unit controller judges the operation This air conditioner is a capacity-variable type air commands from the remote controller and conditioner, which uses DC motor for the indoor fan assumes the following functions.
  • Page 24 FILE NO. SVM-02007 (3) Contents of operation command signal (Serial 8-1-1. Capacity control signal) from indoor unit controller to outdoor unit The cooling and heating capacity is varied by changing controller compressor motor speed. The inverter changes The following three types of signals are sent from compressor motor speed by changing AC 220-240V the indoor unit controller.
  • Page 25 FILE NO. SVM-02007 8-1-4. Prevent-freezing control 8-1-6. Indoor fan control (DC fan motor) The indoor heat exchanger sensor detects refrigerant (1) The indoor fan is operated by the stepless speed vapor temperature in COOL/DRY operation. If the change DC motor. temperature is below the specified value, compressor (2) For air flow level, speed of the indoor fan motor is motor speed is reduced so that operation is performed...

  • Page 26: Description Of Operation Circuit

    FILE NO. SVM-02007 • The outdoor unit controls the outdoor fan relay R01, 8-2. Description of Operation Circuit R02 and R03, and the compressor motor speed (1) When turning on the breaker, the operation lamp according to the operation command signal sent blinks.
  • Page 27 FILE NO. SVM-02007 (3) Current release control (5) Limit for maximum compressor motor speed The input current of compressor and outdoor fan by indoor fan speed motor (Precisely inverter main circuit control When the indoor heat exchanger sensor detected section) which occupy most of air conditioner input 17°C or lower, the maximum compressor motor is detected by the outdoor current sensor, and speed is limited by the indoor fan speed.
  • Page 28 FILE NO. SVM-02007 8-2-3. DRY operation 8-2-4. Heat operation ([MODE] button on the remote control is set the ([MODE] button on the remote control is set the Dry ( ) operation.) Heat ( ) operation.) • Once the setting is made, the operation mode is Transferring of heat operation signal from indoor unit to memorized in the microcomputer so that the same outdoor unit starts.
  • Page 29 FILE NO. SVM-02007 [In starting and in stability] In starting In stability 16.0 7.1A • Until 12 minutes • When 12 to 25 15.5 passed after minutes passed operation start after operation 11.0 7.1A • When 12 to 25 start and room 10.5 temperature is minutes passed...
  • Page 30 FILE NO. SVM-02007 2) Defrost operation 8-2-5. Automatic operation Operation of the compressor is stopped once, (1) As shown in Fig. 8-2-9, the operation mode turn off power coupler for 4 way valves after 10 (COOL, DRY, HEAT) is selected according to the seconds, and then exchange the 4 way valves.

  • Page 31: Temporary Operation

    FILE NO. SVM-02007 8-3. Temporary Operation • Temporary Auto operation, existence of Auto Restart, and Temporary Cooling operation can be set by the TEMPORARY button of the indoor controller. TEMPORARY button TEMPORARY button Table 8-3-1 TEMPORARY button Control Temporary Auto OFF →...

  • Page 32: Auto Restart Function

    FILE NO. SVM-02007 8-4-1. How to set auto restart function 8-4. Auto Restart Function To set the auto restart function, proceed as follows: The indoor unit is equipped with an automatic restart- The power supply to the unit must be on; the function ing function which allows the unit to restart operating will not set if the power is off.
  • Page 33 FILE NO. SVM-02007 8-4-2. How to cancel 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 control after the main power supply is turned off.

  • Page 34: Hi Power Mode ([Hi Power] Button On The Remote Control Is Pressed.)

    FILE NO. SVM-02007 8-5. Hi POWER Mode ([Hi POWER] button on the remote control is pressed.) When [Hi POWER] button is pressed while the indoor unit is in Auto, Cooling or Heating operation, Hi POWER mark is indicated on the display of the remote control and the unit operates as follows.

  • Page 35: Remote Control

    FILE NO. SVM-02007 Memory button (MEMO) 8-7. Remote control Press this button to stand by memorizing the 8-7-1. Remote control and its functions settings. Press the button again for more than 4 seconds 1 Infrared signal emitter to memorize the setting indicated on the remote Transmits a signal to the indoor unit.
  • Page 36 FILE NO. SVM-02007 8-7-2. Names and functions of indications on remote control Display All indications, except for clock time indication, are indicated by pressing the START/STOP button. 1 Transmission mark This transmission mark (,) indicates when the remote control transmits signals to the indoor unit. 2 Mode display Indicates the current operation mode.

  • Page 37: Installation Procedure

    And, make sure the equipment to be 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 will result in an electrical short.
  • Page 38 FILE NO. SVM-02007 9-1-1. Installation Diagram of Indoor and Outdoor Units For the rear left and left piping Hook Installation plate Wall Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better operation. Do not allow the drain hose to get slack.
  • Page 39 FILE NO. SVM-02007 9-1-2. Optional Installation Parts Part Parts name Fixing bolt arrangement of outdoor unit Q'ty Code • Secure the outdoor unit with the fixing bolts and nuts Suction side Refrigerant piping Each if the unit is likely to be exposed to a strong wind. : ∅6.35 mm Liquid side •...

  • Page 40: Indoor Unit

    FILE NO. SVM-02007 9-2. INDOOR UNIT Mounting the Installation Plate 9-2-1. Installation Place For installation of the indoor unit, use the paper pattern on the back. • A place which provides the spaces around the indoor unit as shown in Anchor bolt holes the above diagram.
  • Page 41 FILE NO. SVM-02007 9-2-5 Piping and Drain Hose Installation CAUTION Piping and Drain Hose Forming • This appliance can be connected to the mains in either of the following two ways. * Since dewing results in a machine trouble, make sure to insulate both (1) Connection to fixed wiring : the connecting pipes.
  • Page 42 FILE NO. SVM-02007 9-2-6 Indoor Unit Fixing In case of right or left piping • After scribing slits of the front panel 1. Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks. with a knife or a making-off pin, cut 2.

  • Page 43: Outdoor Unit

    FILE NO. SVM-02007 9.3 OUTDOOR UNIT • Do not apply an excess force. CAUTION 9-3-1. Installation Place Otherwise, the nut may crack depending on the conditions. • A place which provides the spaces around the outdoor unit as shown in the left diagram. (Unit : N·m) •...
  • Page 44 This product is designed so that, after a power failure, it can restart Fig. 9-3-9 automatically in the same operating mode as before the power failure. Model RAS-10UKV-E RAS-13UKV-E Information Power source 50/60Hz, 220-240V Single phase Maximum running current The product was shipped with Auto Restart function in the off position.

  • Page 45: How To Diagnose The Trouble

    FILE NO. SVM-02007 10. HOW TO DIAGNOSE THE TROUBLE The pulse modulating circuits are mounted to both NOTE: indoor and outdoor units. Therefore, diagnose troubles A large-capacity electrolytic capacitor is used in the according to the diagnosis procedure as described outdoor unit controller (inverter).

  • Page 46: Primary Judgement

    FILE NO. SVM-02007 10-1-3. Operation which is not a trouble (Program operation) For controlling the air conditioner, the program operations are built in the microcomputer as described in the following table. If a claim is made for running operation, check whether or not it meets to the contents in the following table.

  • Page 47: Judgement By Flashing Led Of Indoor Unit

    FILE NO. SVM-02007 10-3. Judgement by Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner, if the protective circuit operates, the contents of self-diagnosis are displayed with block on the indoor unit indication section. Table 10-3-1 Lamps Self-diagnosis...

  • Page 48: Self-Diagnosis By Remote Control (Check Code)

    FILE NO. SVM-02007 10-4. Self-Diagnosis by Remote Control (Check Code) (1) If the lamps are indicated as shown B to H in Table 10-3-1, exchanger the self-diagnosis by the remote control. (2) When the remote control is set to the service mode, the indoor controller diagnoses the opera- tion condition and indicate the information of the self-diagnosis on the display of the remote control...
  • Page 49 FILE NO. SVM-02007 10-4-2. Caution at servicing (1) After servicing, push the START/STOP button to return to the normal mode. (2) After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status.
  • Page 50 FILE NO. SVM-02007 Block distinction Operation of diagnosis function Judgement and action Check Check Air conditioner Block Cause of operation Remark code code status Outdoor Inverter over-current All off Displayed when Even if trying operation again, all P.C. board protective circuit operates. error is detected.

  • Page 51: Judgement Of Trouble By Every Symptom

    FILE NO. SVM-02007 10-5. Judgement of Trouble by Every Symptom 10-5-1. Indoor unit (Including remote controller) (1) Power is not turned on (Does not operate entirely) Turn off power Operation supply once, and 5 second later, turn it Check item on again.
  • Page 52 FILE NO. SVM-02007 (2) Power is not turned on though Indoor P.C. board is replaced <Confirmation procedure> Turn on power supply. Does operation Is wired connectly to white and black Correct wirng. lamp flash? lead wires of terminal block? To item of “Power supply is not turned on”...
  • Page 53 FILE NO. SVM-02007 (3) Only indoor fan motor does not operate. <Primary check> (1) Is it possible to detect the power supply voltage (200 – 240V) 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 Operation approximately 5 minutes after it is turned on, to prevent a cold air...
  • Page 54 FILE NO. SVM-02007 (4) Indoor fan motor automatically starts to rotate by turning on power supply. <Cause> The IC is built in the indoor fan motor. Therefore the P.C. board is also mounted to the inside of the motor. If the P.C. board is soldered imperfectly or the IC is defective, the fan motor may automatically rotate by turning on power supply.
  • Page 55 FILE NO. SVM-02007 (5) Troubleshooting for remote control The unit does not beep at all. Press START/STOP OPERATION lamp on indoor button. unit is not indicated. Is transmission mark indicated? Press RESET button on remote control with tip of pencil. Is receiver on indoor unit exposed to direct sunlight?
  • Page 56 FILE NO. SVM-02007 10-5-2. Wiring Failure (Interconnected and serial signal wire) (1) Outdoor unit does not operate. 1) Is the voltage between 2 and 3 of the indoor terminal block varied? Confirm that transmission from indoor to outdoor is correctly performed based on the following diagram. NOTE: •...

  • Page 57: Check Code 1C (Miswiring In Indoor/Outdoor Units) And 1E

    FILE NO. SVM-02007 10-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E <Check procedure> Operation Check item Gas leakage, disconnection of Discharge temp. TS/TC sensors (Check code error, gas leakage Conceivable principle 02, 1C) (Check code 03, 1E) cause Measure Item by symptoms Valve drive check...

  • Page 58: How To Diagnose Trouble In Outdoor Unit

    FILE NO. SVM-02007 10-7. How to Diagnose Trouble in Outdoor Unit 10-7-1. Summarized inner diagnosis of inverter assembly Diagnosis/Process flowchart Item Contents Summary Preparation Turn “OFF” the power Remove breaker, and remove 3P connector of compressor. connector which connects inverter and compressor. •...

  • Page 59: How To Check Simply The Main Parts

    FILE NO. SVM-02007 Diagnosis/Process flowchart Item Contents Summary → OK if 10MΩ or more Check Check winding resistance → OK if 0.51Ω → between phases of compressor, and 0.57Ω (Check by a resistance between digital tester.) outdoor frames by using a Check tester.
  • Page 60 FILE NO. SVM-02007 (3) Check procedures Table 10-8-1 Procedure Check points (Symptom) Causes Impulse voltage was applied or the Turn off the power supply and Check whether or not the fuse (F01) remove the P.C. board assembly is blown. indoor fan motor short-circuited. from electronic parts base.
  • Page 61 FILE NO. SVM-02007 10-8-2. P.C. board layout MCC-867 Bottom View (For the Top View, refer to page 66.) [1] Sensor characteristic table TD : Discharge temp. sensor TA : Room temp. sensor TC : Heat exchanger temp. sensor TO : Outdoor temp. sensor TA, TC, TO, TE, TS TE : Outdoor heat exchanger temp.
  • Page 62 FILE NO. SVM-02007 10-8-3. Indoor unit (Other parts) Part name Checking procedure Room temp. (TA) sensor Disconnect the connector and measure the resistance value with Heat exchanger (TC) sensor tester. (Normal temp.) Temperature 10°C 20°C 25°C 30°C 40°C Sensor 20.7 12.6 10.0 TA, TC (kΩ)
  • Page 63 FILE NO. SVM-02007 10-8-5. Checking method for each part Part name Checking procedure Electrolytic capacitor (For 1. Turn OFF the power supply breaker. raising pressure, smoothing) 2. Discharge all four capacitors completely. 3. Check that safety valve at the bottom of capacitor is not broken. 4.

  • Page 64: How To Simply Judge Whether Outdoor Fan Motor Is Good Or Bad

    FILE NO. SVM-02007 10-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1. Symptom • Outdoor fan motor does not rotate. • Outdoor fan motor stops within several ten seconds though it starts rotating. • Outdoor fan motor rotates or does not rotate according to the position where the fan stopped., etc. 2.

  • Page 65: How To Replace The Main Parts

    FILE NO. SVM-02007 11. HOW TO REPLACE THE MAIN PARTS 11-1. Indoor Unit Part name Procedures Remarks Front panel How to remove the front panel 1) Stop operation of the air conditioner and turn off its main power supply. 2) Pull the air inlet grille toward you to open it and remove the air inlet grille.
  • Page 66 FILE NO. SVM-02007 Part name Procedures Remarks Heat exchanger 1) Remove the front panel, electrical part and the horizontal louver following procedure 3. 2) Remove the pipe holder at the rear side of main unit. 3) Remove the 2 screws on the heat exchanger at the base bearing.

  • Page 67: Microcomputer

    FILE NO. SVM-02007 11-2. Microcomputer Part name Procedures Remarks Common Replace the thermal fuse, terminal 1) Turn the power supply off to stop the procedure block, microcomputer ass’y and the operation of air conditioner. P.C. board ass’y 2) Remove the front panel. •...

  • Page 68: Outdoor Unit

    FILE NO. SVM-02007 11-3. Outdoor Unit Part name Procedures Remarks Common 1. Detachment Upper cabinet procedure 1) Stop operation of the air conditioner, and turn off the main switch and breaker of the Wiring cover air conditioner. 2) Remove the valve cover. (ST1T∅4 x 10s Valve cover 1 pc.) •...
  • Page 69 FILE NO. SVM-02007 Part name Procedures Remarks 1) Perform work of item 1 of 1. Inverter Inverter cover assembly 2) Remove screw (ST1T∅4 x 10s 1 pc.) of PC board the upper part of the front cabinet. (Soldered surface) • If removing the inverter cover in this condition, the P.C.
  • Page 70 FILE NO. SVM-02007 Part name Procedures Remarks Control board 1) Disconnect lead wires and connectors CN602 CN601 assembly connected from the control board CN300 CN701 assembly to other parts. CN500 1. Lead wires • Connection with terminal block : 3 wires (Black, White, Orange) •...
  • Page 71 FILE NO. SVM-02007 Part name Procedures Remarks 1) Perform work of item 1 of 1 and 1 of 2. Fan motor 2) Remove the flange nut fixing the fan motor Fan motor and the propeller fan. Propeller fan • Flange nut is loosened by turning clockwise.
  • Page 72 FILE NO. SVM-02007 Part name Procedures Remarks Fan guard 1. Detachment 1) Perform work of item 1 of 1 and 1 of 2. Requirement: Perform the work on a corrugated cardboard, cloth, etc. to prevent scratches to the product. 2) Remove the front cabinet, and place it down so that the fan guard side faces downwards.
  • Page 73 FILE NO. SVM-02007 Part name Procedures Remarks Replacement of 1) Cut the sensor 100 mm longer than old Cutting here Thermal temperature one. sensor part Connector sensor for 2) Cut the protective tube after pulling out it servicing only (200 mm). 3) Move the protective tube toward the Cutting here Common service...
  • Page 74 FILE NO. SVM-02007 <P.C. board layout> MCC-866 – 73 –...

  • Page 75: Exploded Views And Parts List

    FILE NO. SVM-02007 12. EXPLODED VIEWS AND PARTS LIST 12-1. Indoor Unit (E-Parts Assy) Location Part Location Part Description Description 43T69319 Temperature Sensor, TC 10kΩ 25°C 43T62003 Cord Clamp 43T60001 Terminal, 2P AC300V, 20A 43T69079 P.C. Board ASSY, WRS-LED 43T69320 Temperature Sensor, TA 10kΩ 25°C 43T69321 P.C.

  • Page 76: Indoor Unit

    FILE NO. SVM-02007 12-2. Indoor Unit Electric Parts Assembly Location Part Location Part Description Description 43T00352 Front Panel Assy 43T22002 Bearing 43T09316 Inlet Grille Assy 43T39301 Base, Bearing 43T03302 Back Body Assy 43T20302 Cross Flow Fan 43T80301 Air Filter 43T39302 Band Motor-L 43T09309 Horizontal Louver 43T21327 Motor, Fan, ICF-340-30-2, DC 340V 43T08350 LED Panel Assy...

  • Page 77: Outdoor Unit

    FILE NO. SVM-02007 12-3. Outdoor Unit 25,26 10,11 07 : Capillary Tube 08,09 Location Part Location Part Description Description 43T19313 Guard, Fan 43T19312 Handle 43T20306 Fan, Propeller 43T49001 Cushion, Rubber 43T00362 Cabinet, Front, Assy 43T63005 Holder, Thermostat 43T43323 Condenser, Assy 43T54304 Thermostat, Bimetal, PW2AL 43T62309 Cover, Wiring, Assy 43T41318 Compressor, DA89XIF-20D...

  • Page 78: Outdoor Unit (E-Parts Assy)

    FILE NO. SVM-02007 12-4. Outdoor Unit (E-Parts Assy) Sensor (˘6) Location Part Location Part Description Description 43T62306 Invertor Cover 43T60315 Fuse, 15A, 250V 43T62307 Heatsink 43T50303 Temperature Sensor, 43T69316 P.C. Board, MCC-866 TE, 10KΩ, 25°C 43T62308 Invertor Box 43T50303 Temperature Sensor, 43T60027 Terminal Box ;...
  • Page 79 FILE NO. SVM-02007 TOSHIBA CARRIER CORPORATION – 78 –...

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