Toshiba RAS-107SKV-E3 Service Manual
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Toshiba RAS-107SKV-E3 Service Manual

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FILE NO. SVM-10017

SERVICE MANUAL

SPLIT TYPE
Indoor Unit
Outdoor Unit
<High Wall, Heat Pump Type>
<Heat Pump Type>
RAS-107SKV-E3 RAS-107SAV-E3
R410A
Feburary, 2010

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Summary of Contents for Toshiba RAS-107SKV-E3

  • Page 1: Service Manual

    FILE NO. SVM-10017 SERVICE MANUAL SPLIT TYPE Indoor Unit Outdoor Unit <High Wall, Heat Pump Type> <Heat Pump Type> RAS-107SKV-E3 RAS-107SAV-E3 R410A Feburary, 2010...

  • Page 2: Table Of Contents

    FILE NO. SVM-10017 CONTENTS 1. SAFETY PRECAUTIONS ................2 2. SPECIFICATIONS ..................4 3. REFRIGERANT R410A ................6 4. CONSTRUCTION VIEWS ................ 14 5. WIRING DIAGRAM .................. 16 6. SPECIFICATIONS OF ELECTRICAL PARTS ......... 18 7. REFRIGERANT CYCLE DIAGRAM ............20 8.

  • Page 3: Safety Precautions

    FILE NO. SVM-10017 1. SAFETY PRECAUTIONS For general public use Power supply cord of outdoor unit shall be more than 1.5 mm (H07RN-F or 60245IEC66) polychloroprene sheathed flexible cord. • Read this “SAFETY PRECAUTIONS” carefully before servicing. • The precautions described below include the important items regarding safety. Observe them without fail. •...
  • Page 4 FILE NO. SVM-10017 • DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION. • TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES, ETC.

  • Page 5: Specifications

    FILE NO. SVM-10017 2. SPECIFICATIONS 2-1. Specifications RAS-107SKV-E3 Unit model Indoor RAS-107SAV-E3 Outdoor Cooling capacity (kW) Cooling capacity range (kW) 1.1 - 3.0 Heating capacity (kW) Heating capacity range (kW) 0.9 - 4.1 Power supply 1Ph/50Hz/220-240V, 1Ph/60Hz/220-240V Electric Indoor Operation mode...

  • Page 6: Operation Characteristic Curve

    FILE NO. SVM-10017 2-2. Operation Characteristic Curve <Cooling> <Heating> Conditions Conditions Indoor : DB 27°C/WB 19°C Indoor : DB 20°C/WB 15°C Outdoor : DB 35°C/WB 24°C Outdoor : DB 7°C/WB 6°C Air Flow : High Air Flow : High Pip Length : 5m Pip Length : 5m Voltage : 230V Voltage : 230V...

  • Page 7: Refrigerant R410A

    FILE NO. SVM-10017 3. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC 6. When an air conditioning system charged with a (R410A) which does not damage the ozone layer. large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, The working pressure of the new refrigerant R410A even when refrigerant leaks, its concentration...
  • Page 8 FILE NO. SVM-10017 Table 3-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) 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 FILE NO. SVM-10017 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 R410A or conven- tional flare tool. Flare processing dimensions differ according to the type of flare tool.
  • Page 10 FILE NO. SVM-10017 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.

  • Page 11: Specifications

    FILE NO. SVM-10017 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 R410A 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: Recharging Of Refrigerant

    FILE NO. SVM-10017 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: Brazing Of Pipes

    FILE NO. SVM-10017 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 R410A 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 14 FILE NO. SVM-10017 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. •...

  • Page 15: Construction Views

    FILE NO. SVM-10017 4. CONSTRUCTION VIEWS 4-1. Indoor Unit Front panel Air inlet Air filter Heat exchanger Air outlet Knock out system Knock out system Wireless remote controller Remote controller holder Connecting pipe (0.37m) Drain hose (0.5m) (Flare ∅ 6.35) Hanger Connecting pipe (0.37m) (Flare ∅...
  • Page 16 FILE NO. SVM-10017 4-2. Outdoor Unit − 15 −...

  • Page 17: Wiring Diagram

    FILE NO. SVM-10017 5. WIRING DIAGRAM 5-1. Indoor Unit – 16 –...
  • Page 18 FILE NO. SVM-10017 – 17 –...

  • Page 19: Specification Of Electrical Parts

    FILE NO. SVM-10017 6. SPECIFICATION OF ELECTRICAL PARTS 6-1. Indoor Unit Parts name Type Specifications Fan motor (for indoor) AFN-220-20-4D AC Motor with 145°C thermo fuse Thermo. sensor (TA-sensor) 10 kΩ at 25°C Switching transformer (T01) ST-02 µPD780076GK-703-9ET-A Microcontroller unit (IC81) Heat exchanger sensor 10 kΩ...

  • Page 20: Refrigerant Cycle Diagram

    FILE NO. SVM-10017 7. REFRIGERANT CYCLE DIAGRAM 7-1. Refrigerant Cycle Diagram Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 10m Min. : 2m Pressure measurement Chargeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape...

  • Page 21: Operation Data

    FILE NO. SVM-10017 7-2. Operation Data <Cooling> Tempeature Standard Heat exchanger Indoor Outdoor Compressor condition(°C) pressure pipe temp. fan mode fan mode revolution Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps) 27/19 35/- 0.9 to 1.1 9 to 11 47 to 49 High High...

  • Page 22: Control Block Diagram

    FILE NO. SVM-10017 8. CONTROL BLOCK DIAGRAM 8-1. 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 • Motor Revolution Control Infrared Rays Signal Receiver •...
  • Page 23 FILE NO. SVM-10017 8-2. Outdoor Unit (Inverter Assembly) – 22 –...

  • Page 24: Operation Description

    FILE NO. SVM-10017 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 • Over-current detection and prevention operation conditioner, which uses AC or DC motor for the indoor to IGBT module (Compressor stop function) for motor and the outdoor fan motor.
  • Page 25 FILE NO. SVM-10017 9-2. Operation Description 1. Basic operation ......................26 1. Operation control ....................26 2. Cooling/Heating operation ..................27 3. AUTO operation ..................... 27 4. DRY operation ......................27 2. Indoor fan motor control ..................... 28 3. Capacity control ......................30 4.

  • Page 26: Basic Operation

    FILE NO. SVM-10017 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 27: Cooling/Heating Operation

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 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 28: Indoor Fan Motor Control

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 2. Indoor fan <In cooling operation> motor control (This operation controls the fan speed at indoor unit side.) * Symbols The indoor fan (cross flow fan) is operated by the phase- : Ultra High control induction motor.
  • Page 29 FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 2. Indoor fan <In heating operation> 1) When setting the fan speed to L, motor control M or H on the remote controller, the operation is per- formed with the constant speed HEAT ON shown in Fig.

  • Page 30: Capacity Control

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 3. Capacity The cooling or heating capacity depending on the load is 1) The difference between set control adjusted. temperature on remote controller (Ts) and room temperature (Ta) According to difference between the setup value of tempera- is calculated.

  • Page 31: Release Protective Control By Temperature Of Indoor Heat Exchanger

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 5. Release protective <In cooling/dry operation> 1) When temperature of the indoor control by tempera- heat exchanger drops below 5°C, (Prevent-freezing control for indoor heat exchanger) ture of indoor heat the compressor speed is In cooling/dry operation, the sensor of indoor heat exchanger...

  • Page 32: Defrost Control (Only In Heating Operation)

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 6. Defrost control (This function removes frost adhered to the outdoor The necessity of defrost operation is (Only in heating heat exchanger.) detected by the outdoor heat exchanger operation) temperature.

  • Page 33: Louver Control

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 7. Louver control This function controls the air direction of the indoor unit. • The position is automatically controlled according to the operation 1) Louver position mode (COOL/HEAT). • 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 34: Eco Operation

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 8. ECO When pressing [ECO] button on the remote controller, a <Cooling operation> operation Economic operation is performed. 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 35: Temporary Operation

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 9. Temporary Pressing [RESET] button starts the temporary opera- 1) When pressing [RESET] button, the operation tion of [AUTO] operation. When keeping [RESET] temporary [AUTO] operation starts. button pressed for 10 seconds or more, the temporary 2) When keeping [RESET] button pressed [COOL] operation is performed.

  • Page 36: Self-Cleaning Function

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 11. 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 37: Remote-A Or B Selection

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description • Self-Cleaning diagram Operation display FCU fan rpm is depend on presetting. (500RPM) 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.

  • Page 38: Short Timer

    FILE NO. SVM-10017 Item Operation flow and applicable data, etc. Description 13. COMFORT Cooling mode The principles of comfort sleep mode are: • Quietness for more comfortable. When SLEEP • The preset temperature will increase as room temperature reach setting temperature show on ECO operation (Item No.

  • Page 39: Auto Restart Function

    FILE NO. SVM-10017 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.

  • Page 40: How To Cancel The Auto Restart Function

    FILE NO. SVM-10017 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 41: Parts Name Of Remote Contr Oller

    The coutomised settings control temperature air flow strength, air flow direction and other settings to provide you alternate contact with "ONE-TOUCH" OF THE BUTTON. If you prefer other settings you can select from the many other operation functions of your Toshiba unit Press ONE-TOUCH : Start the operaton.
  • Page 42 FILE NO. SVM-10017 4. DRY OPERATION (COOLING ONLY) For dehumidification, a moderate cooling performance is controlled automatically. 1. Press MODE : Select Dry 2. Press MODE : Set the desired temperature. 5. Hi-POWER OPERATION To automatically control room temperature and airflow for faster cooling or heating operation (except in DRY and FAN ONLY mode) Press HI-POWER : Start and stop the operation.
  • Page 43 FILE NO. SVM-10017 9. PRESET OPERATION Set your preferred operation for future use. The setting will be memorized by the unit for future operation (except air flow direction). 1. Select your preferred operation. 2. Press and hold PRESET for 3 seconds to memorize the setting. The mark displays.

  • Page 44: Name And Functions Of Indications On Remote Controller

    FILE NO. SVM-10017 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. 1. Transmission mark 5. 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 45: Installation Procedure

    FILE NO. SVM-10017 10. INSTALLATION PROCEDURE 10-1. 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 46 FILE NO. SVM-10017 10-1-2. Optional installation parts Part Parts name Q'ty Code Refrigerant piping Liquid side : ∅6.35 mm each ∅ Gas side 9.52 mm Pipe insulating material (polyethylene foam, 6 mm thick) Putty, PVC tapes each <Fixing bolt arrangement of outdoor unit> 500 mm Air inlet 97 mm...
  • Page 47 FILE NO. SVM-10017 10-1-3. Accessory and installation parts Part Part Part Part name (Q’ty) Part name (Q’ty) Part name (Q’ty) Mounting screw ∅4 x 25 s x 6 Installation plate x 1 Remote control holder x 1 Flat head wood screw ∅3.1 x 16 s x 2 Wireless remote control x 1 Active carbon catechin x 1...
  • Page 48 FILE NO. SVM-10017 10-2-3. 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 49 FILE NO. SVM-10017 10-3. Indoor Unit 10-3-2. Drilling a Hole and Mounting Instal- lation Plate 10-3-1. 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 50 FILE NO. SVM-10017 10-3-3. Electrical Work When the installation plate is directly mounted on the wall 1. The supply voltage must be the same as the rated voltage of the air conditioner. 1. Securely fit the installation plate onto the wall by 2.
  • Page 51 FILE NO. SVM-10017 CAUTION CAUTION 1. Die-cutting front panel slit • Be sure to refer to the wiring system diagram Cut out the slit on the left or right side of the front labeled inside the front panel. panel for the left or right connection and the slit on the bottom left or side of thefront panel for the •...
  • Page 52 FILE NO. SVM-10017 How to attach the drain cap In case of bottom right or bottom left piping 1. Insert hexagonal wrench (4 mm). • After making slits on the front panel with a knife or similar tool, cut them out with a pair of nippers or an equivalent tool.
  • Page 53 FILE NO. SVM-10017 10-3-7. Drainage CAUTION 1. Run the drain hose at a downward sloped angle. • Bind the auxiliary pipes (two) and connecting cable with facing tape tightly. NOTE : In case of leftward piping and rear-leftward • Hole should be made at a slight downward slant piping, bind the auxiliary pipes (two) only with on the outdoor side.
  • Page 54 FILE NO. SVM-10017 10-4-2. Refrigerant piping connection 10-4. Outdoor Unit <Flaring> 10-4-1. Installation place • A place which provides the spaces around the 1. Cut the pipe with a pipe cutter. outdoor unit as shown in the left diagram. • A place which can bear the weight of the outdoor Roughness Obliquity Warp...
  • Page 55 FILE NO. SVM-10017 (Unit : Nám) <Using a vacuum pump> Outer dia. Tightening torque of copper pipe Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does ∅6.35 mm 16 to 18 (1.6 to 1.8 kgf·m) not flow backward into pipes of the air conditioner ∅...
  • Page 56 FILE NO. SVM-10017 <Packed valve handling precautions> <Stripping length of connection cable> Open the valve stem all the way out; but do not try Terminal block to open it beyond the stopper. Securely tighten the valve stem cap with torque in the following table: Gas side 30 to 42 N·m...
  • Page 57 FILE NO. SVM-10017 10-4-5. Gas leak test 10-4-8. Auto restart setting This product is designed so that, after a power failure, Check places for it can restart automatically in the same operating mode indoor unit (Flare nut connection) as before the power failure. Valve cover Information The product was shipped with Auto Restart function...

  • Page 58: How To Diagnose The Trouble

    FILE NO. SVM-10017 11. 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 59: Primary Judgment

    FILE NO. SVM-10017 11-1-1. 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 60: Judgment By Flashing Led Of Indoor Unit

    FILE NO. SVM-10017 11-3. Judgment 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 11-3-1 Check Item...
  • Page 61 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 62 FILE NO. SVM-10017 11-4-2. Caution at servicing (1) After servicing, push the [ ] 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 63 FILE NO. SVM-10017 Block distinction Operation of diagnosis function Judgment and action Check Check Air conditioner Block Cause of operation Remarks code code status Displayed when Ondoor Inverter over-current All off Even if trying operation again, all P .C. protective circuit operates. error is detected.

  • Page 64: Judgement Of Trouble By Every Symptom

    FILE NO. SVM-10017 11-5. Judgement of Trouble by Every Symptom 11-5-1. 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 65 FILE NO. SVM-10017 (2) Power is not turned on though Indoor P.C. board is replaced <Confirmation procedure> Turn on power supply. Is wired correctly to white and black Correct wiring. Does operation lamp flash? lead wires of terminal board? To item of “Power is not turned on”.
  • Page 66 FILE NO. SVM-10017 (3) Only the indoor fan does not operate. <Check procedure> Shut off the power supply once. Turn the power supply. Does the fan stop in Control P.C. board is defective. Replace the P.C. board. no operating status? Start the operation with low fan setting in cool operation.
  • Page 67 FILE NO. SVM-10017 (4) Troubleshooting for remote control The unit does not beep at all. Press [ OPERATION lamp on button. indoor unit is not indicated. Is transmission mark indicated? Reset the remote control Is receiver on by take off batteries indoor unit exposed to direct sunlight? Does indoor unit...
  • Page 68 FILE NO. SVM-10017 11-5-2. Wiring Failure (Interconnecting and serial signal wire) (1) Outdoor unit does not operate. 1) Is the voltage between indoor terminal block 2 and 3 varied? Confirm that transmission from indoor to outdoor is correctly performed based on the following diagram. NOTE: •...

  • Page 69: How To Check Simply The Main Parts

    FILE NO. SVM-10017 (2) Inspection procedures 11-6. How to Check Simply the Main Parts 1) When a P.C. board is judged to be defective, 11-6-1. How to check the P.C. board (Indoor unit) check for disconnection, burning, or discolora- tion of the copper foil pattern or this P.C. board. (1) Operating precautions 2) The P.C.
  • Page 70 FILE NO. SVM-10017 Procedure Check points Causes If the above condition (No. 5) still 1. Check whether or not the com- 1. The temperature of the indoor heat continues, start the unit in the pressor operates. exchanger is extremely high. following condition.
  • Page 71 FILE NO. SVM-10017 11-6-2. 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) sensor (Normal temp.) Temperature 10°C 20°C 25°C 30°C 40°C Sensor TA, TC (kΩ) 20.7 12.6 10.0...
  • Page 72 FILE NO. SVM-10017 Outdoor temperature sensor Disconnect the connector, and measure resistance value with the tester. (Normal temperature) (TO), discharge temperature sensor (TD), suction temperature Temperature exchanger temperature sensor 10°C 20°C 30°C 40°C 50°C Sensor (TE) TA, TC (k ) TGa : Heat pump model only.
  • Page 73 FILE NO. SVM-10017 11-7. How to setting the CLEAN OPERATION cancel 1. Add J201 of indoor PC board assembly. (If AUTO RESTART set before, will automatic cancel when add J201) J201 2. Turn ON breaker, then hold down the [RESET] button on the indoor unit for 3 seconds but not more than 10 seconds.

  • Page 74: Part Replacement

    FILE NO. SVM-10017 12. PART REPLACEMENT 12-1. Indoor Unit Part name Procedures Remarks Front panel How to remove the front panel 1) Stop the 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 75 FILE NO. SVM-10017 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 76 FILE NO. SVM-10017 12-2. 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 77 FILE NO. SVM-10017 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 78 FILE NO. SVM-10017 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 79 FILE NO. SVM-10017 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 80 FILE NO. SVM-10017 Part name Procedures Remarks Control board 1) Disconnect lead wires and connectors assembly connected from the control board CN601 CN703 CN701 assembly to other parts. CN602 1. Lead wires CN500 • Connection with terminal block : 3 wires (Black, White, Orange) •...
  • Page 81 FILE NO. SVM-10017 Part name Procedures Remarks Replacement of 1) Cut the sensor 100 mm longer than old one. Cutting here Thermal temperature 2) Cut the protective tube after pulling out it sensor part Connector sensor for (200 mm). servicing only 3) Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two, Cutting here...

  • Page 82: Exploded Views And Parts List

    FILE NO. SVM-10017 13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit (E-Parts Assy) Location Part Location Part Description Description 43T60365 TERMINAL BLOCK; 3P 43T69612 DISPLAY UNIT 43T69319 TEMPERATURE SENSOR 43T62003 CORD CLAMP 43T69320 TEMPERATURE SENSOR 43T69824 PC BOARD – –...
  • Page 83 FILE NO. SVM-10017 13-2. Indoor Unit Location Part Location Part Description Description 43T00478 FRONT PANEL ASSY 43T22312 BEARING ASSY, MOLD 43T09433 GRILLE OF AIR INLET 43T39323 BEARING BASE 43T03357 BACK BODY ASSY 43T20323 ASSY CROSS FLOW FAN 43T80317 AIR-FILTER 43T39324 MOTOR BAND (LEFT) 43T09392 HORIZONTAL LOUVER...
  • Page 84 FILE NO. SVM-10017 13-2. Outdoor Unit Location Part Location Part Description Description 43T19335 FAN GUARD 43T49327 CUSHION,RUBBER 43T20324 PROPELLER FAN 43T41423 COMPRESSOR(Made in China) 43T00482 FRONT CABINET 43T19337 PACKED VALVE COVER 43T43403 CONDENSOR ASSEMBLY 43T00481 UPPER CABINET 43T62323 TERMINAL COVER 43T00448 FIXING PLATE VALVE 43T19341...
  • Page 85 FILE NO. SVM-10017 13-4. P.C. Board Layout Location Part Location Part Description Description 43T62320 HEATSINK 43T60377 TEMPERATURE SENSOR 43T69819 PC BOARD 43T50304 SENSOR;HEAT EXCHANGER 43T60392 TERMINAL-5P 43T62313 BASE-PLATE-PC 43T60326 FUSE 43T55325 CAPACITOR; PLASTIC-FILM – –...
  • Page 86 FILE NO. SVM-03005 TOSHIBA CARRIER (THAILAND) CO.,LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND. – 56 –...

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