Toshiba RAV-SM404ATP-E Service Manual
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Toshiba RAV-SM404ATP-E Service Manual

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FILE NO. SVM-14059

SERVICE MANUAL

AIR-CONDITIONER
(SPLIT TYPE)
OUTDOOR UNIT
RAV-SM304ATP-E (TR)
RAV-SM404ATP-E (TR)
RAV-SM304ATJP-E
RAV-SM404ATJP-E
Table of Contents
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Summary of Contents for Toshiba RAV-SM404ATP-E

  • Page 1: Service Manual

    FILE NO. SVM-14059 SERVICE MANUAL AIR-CONDITIONER (SPLIT TYPE) OUTDOOR UNIT RAV-SM304ATP-E (TR) RAV-SM404ATP-E (TR) RAV-SM304ATJP-E RAV-SM404ATJP-E...

  • Page 2: Table Of Contents

    11-2. Exchange of Compressor........................74 12. DETACHMENTS ......................75 , RAV-SM404AT ..................75 12-1. RAV-SM304AT 13. EXPLODED VIEWS AND PARTS LIST .................84 13-1. RAV-SM304ATP-E, RAV-SM304ATP-TR ..................84 13-2. RAV-SM404ATP-E, RAV-SM404ATP-TR ..................88 13-3. RAV-SM304ATJP-E ......................... 92 13-4. RAV-SM404ATJP-E ......................... 96 – 2 –...

  • Page 3: Safety Caution

    Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.
  • Page 4 FILE NO. SVM-14059 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and “safety” work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.

  • Page 5: Warning Indications On The Air Conditioner Unit

    FILE NO. SVM-14059 Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. Warning indication Description WARNING WARNING...

  • Page 6: Precaution For Safety

    FILE NO. SVM-14059 Precaution for Safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker to the OFF position.
  • Page 7 FILE NO. SVM-14059 WARNING Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire.
  • Page 8 FILE NO. SVM-14059 The refrigerant used by this air conditioner is the R410A. Check the used refrigerant name and use tools and materials of the parts which match with it. For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the outdoor unit where is easy to see.
  • Page 9 FILE NO. SVM-14059 Once the repair work has been completed, check for refrigerant leaks, and check the insulation resistance and water drainage. Then perform a trial run to check that the air conditioner is running properly. After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock or injury may be caused.

  • Page 10: Declaration Of Conformity

    ( 1) Refer to the “Definition of Qualified Installer or Qualified Service Person.” Declaration of Conformity Manufacturer: TOSHIBA CARRIER (THAILAND) CO., LTD. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Amphur Muang, Pathumthani 12000, Thailand Authorized...
  • Page 11 FILE NO. SVM-14059 Specifications Sound power level (dBA) Model Weight (kg) Cooling Heating RAV-SM304ATP-E RAV-SM304ATJP-E RAV-SM404ATP-E RAV-SM404ATJP-E RAV-SM304ATP-TR RAV-SM404ATP-TR : Under 70 dBA – 11 –...
  • Page 12 FILE NO. SVM-14059 Refrigerant (R410A) This air conditioner adopts HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to Refrigerant The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed.
  • Page 13 FILE NO. SVM-14059 4. Tools 1. Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. 1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R410A and for conventional refrigerant (R22)

  • Page 14: Specifications

    FILE NO. SVM-14059 1. SPECIFICATIONS 1-1. Outdoor Unit 304AT 404AT Model name Outdoor unit RAV-SM 1 phase 220-240V, 50Hz Power supply 1 phase 220V, 60Hz (Power exclusive to outdoor is required.) Rotary PC Invertor Type 0.75 Compressor Motor (kW) Pole Refrigerant charged...

  • Page 15: Operation Characteristic Curve

    FILE NO. SVM-14059 1-2. Operation Characteristic Curve RAV-SM304AT P < > < > Conditions Conditions Indoor : DB 27 C/WB 19 Indoor : DB 20 Outdoor : DB 35 Outdoor : DB 7 C/WB 6 Air Flow : High Air Flow : High Pip Length : 7.5m Pip Length : 7.5m Voltage : 230V...

  • Page 16: Capacity Variation Ratio According To Temperature

    FILE NO. SVM-14059 Operation Characteristic Curve RAV-SM404AT P < > 10.00 10.00 9.00 9.00 8.00 8.00 7.00 7.00 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 90 100 110 120 90 100 110 120 Compressor Speed (RPS) Compressor Speed (RPS) Capacity variation ratio according to temperature...

  • Page 17: Construction Views (External Views)

    FILE NO. SVM-14059 2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) 2-1. RAV-SM304AT , SM404AT – 17 –...

  • Page 18: Systematic Refrigerating Cycle Diagram

    FILE NO. SVM-14059 3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM 3-1. Outdoor Unit RAV-SM304AT∗P∗ Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 20m Min. : 2m Pressure measurement Chargeless : 15m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Charge : 20g/m Vacuum pump connecting port Thickness : 0.8mm...
  • Page 19 FILE NO. SVM-14059 RAV-SM404AT P T1 Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. Min. : 2m Chargeless : 15m Pressure measurement Deoxidized copper pipe Charge : 20g/m Gauge attaching port Outer dia. : 6.35mm (16 to 20m) Vacuum pump connecting port Thickness : 0.8mm Sectional shape...

  • Page 20: Operation Data

    FILE NO. SVM-14059 3-2. Operation Data RAV-SM304AT P Tempeature Heat exchanger pipe Standard Indoor Outdoor Compressor condition(°C) temp. pressure fan mode fan mode revolution Indoor Outdoor TE (°C) P (MPa) TC (°C) TS (°C) (rps) 27/19 35/- 37 to 41 0.9 to 1.1 13 to 15 13 to 15 High...

  • Page 21: Wiring Diagram

    FILE NO. SVM-14059 4. WIRING DIAGRAM 4-1. RAV-SM304AT – 21 –...

  • Page 22: Rav-Sm404Atp

    FILE NO. SVM-14059 4-2. RAV-SM404AT – 22 –...

  • Page 23: Specifications Of Electrical Parts

    FILE NO. SVM-14059 5. SPECIFICATIONS OF ELECTRICAL PARTS RAV-SM304AT Parts name Type Specifications DA89X1C-23F22 3 phase, 4P, 680W Compressor Fan motor ICF-140-43-4R Output 43 W STF-01AJ646A1 4-way valve coil CAM-MD12TCTH-5 PMV coil Reactor CH-69-Z-T 19mH, 10A P.C. board MCC-1656 Fuse (Mounted on P.C. board) AC250 V, 25 A Fuse AC250 V, 6.3 A...

  • Page 24: Refrigerant R410A

    FILE NO. SVM-14059 6. REFRIGERANT R410A This air conditioner adopted the 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 refrigerant R410A even when refrigerant leaks, its concentration is 1.6 times higher than conventional refrigerant...
  • Page 25 FILE NO. SVM-14059 Table 6-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) 12.7 15.9 1. 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 26 FILE NO. SVM-14059 c) Insertion of Flare Nut d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R410A or conventional flare tool. ØD Flare processing dimensions differ according to the type of flare tool.
  • Page 27 FILE NO. SVM-14059 Fig. 6-2-2 Relations between flare nut and flare seal surface 2. Flare Connecting Procedures and Precautions a) Make sure that the flare and union portions do not have any scar or dust, etc. b) Correctly align the processed flare surface with the union axis. c) Tighten the flare with designated torque by means of a torque wrench.

  • Page 28: Tools

    FILE NO. SVM-14059 6-3. Tools 6-3-1.Required Tools Refer to the “4. Tools” (Page 13) 6-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment.

  • Page 29: Brazing Of Pipes

    FILE NO. SVM-14059 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 30 FILE NO. SVM-14059 2. Characteristics required for flux 6-5-3. Brazing Activated temperature of flux coincides with As brazing work requires sophisticated techniques, the 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 31: Instructions For Re-Use Piping Of R22 Or R407C

    Operation System In the concurrent twin system, when TOSHIBA- ∗ Pipe diameter and thickness (mm) specified branching pipe is used, it can be reused. Branching pipe model name: RBC-TWP30E2, Pipe outer diameter Ø6.4...

  • Page 32: Final Installation Checks

    FILE NO. SVM-14059 6-6-5. Final Installation Checks Existing pipe: NO ∗ Use a new pipes. Is there no scratch or dent on the existing pipes? Is it possible to operate the existing air conditioner? ∗ After the existing air conditioner operated in cooling mode for approx.
  • Page 33 FILE NO. SVM-14059 Piping necessary to change the flare nut/ 6-6-6. Handling of Existing Pipe machining size due to pipe compression. When using the existing pipe, carefully check it for 1) Flare nut width: H (mm) the following: Copper pipe Ø6.4 Ø9.5 Ø12.7...

  • Page 34: Replenishing Refrigerant

    FILE NO. SVM-14059 6-7. Replenishing refrigerant In order to assure the reliability of the appliance, the amount of refrigerant to be replenished shall be subject to the following restrictions. Follow the margin of excess replenished refrigerant, which is equivalent to the current R22.

  • Page 35: Outdoor Control Circuit

    FILE NO. SVM-14059 7. OUTDOOR CONTROL CIRCUIT 7-1. Outline of Main Controls 1. Pulse Modulating Valve (PMV) control 1) For PMV 50 to 500 pulses during operation. 2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC sensor.
  • Page 36 FILE NO. SVM-14059 Item Operation flow and applicable data, etc. Description 3. Outdoor fan The blowing air volume at the outdoor unit side is controlled. 1) The operation command sent motor control from the remote controller is Receiving the operation command from the controller of (for SM30) processed by the indoor unit indoor unit, the controller of outdoor unit controls fan speed.
  • Page 37 FILE NO. SVM-14059 Item Operation flow and applicable data, etc. Description 3. Outdoor fan The blowing air volume at the outdoor unit side is controlled. 1) The operation command sent motor control from the remote controller is Receiving the operation command from the controller of (for SM40) processed by the indoor unit indoor unit, the controller of outdoor unit controls fan speed.
  • Page 38 FILE NO. SVM-14059 Item Operation flow and applicable data, etc. Description 4. 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 39 FILE NO. SVM-14059 Item Operation flow and applicable data, etc. Description 6. Release protective 1) When temperature of the indoor control by heat exchanger drops below 5°C, (Prevent-freezing control for indoor heat exchanger) temperature of the compressor speed is re- In cooling/dry operation, the sensor of indoor heat indoor heat duced.
  • Page 40 FILE NO. SVM-14059 Item Operation flow and applicable data, etc. Description 7. 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 41: Outdoor Print Circuit Board

    FILE NO. SVM-14059 7-2. Outdoor Print Circuit Board RAV-SM304AT , SM404AT – 41 –...

  • Page 42: Troubleshooting

    FILE NO. SVM-14059 8. TROUBLESHOOTING 8-1. Summary of Troubleshooting 1. Before troubleshooting 1) Required tools/instruments • ⊕ and ⊖ screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch • Tester, thermometer, pressure gauge, etc. 2) Confirmation the following points before check a) The following operations are normal.
  • Page 43 FILE NO. SVM-14059 1. Before troubleshooting 1) Required tools/instruments • ⊕ and ⊖ screwdrivers, spanners, radio cutting pliers, nippers, etc. • Tester, thermometer, pressure gauge, etc. 2) Confirmation the following points before check a) The following operations are normal. 1.

  • Page 44: Troubleshooting

    FILE NO. SVM-14059 8-2. Troubleshooting 8-2-1. Outline of judgment The following method can be done to check whether the problem occurred in indoor or outdoor unit. The error is indicated by indication lamp on the display of the indoor unit. (sensors of the receiving part) The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.
  • Page 45 FILE NO. SVM-14059 Lamp indication Check code Cause of trouble occurrence ⎫ Operation Timer Ready Heat exchanger sensor (TCJ) error ⎪ ⎬ Heat exchanger sensor (TC) error Indoor unit sensor error ⎪ ⎭ Alternate flash Heat exchanger sensor (TA) error Discharge temp.
  • Page 46 FILE NO. SVM-14059 8-2-3. Monitor Function of Remote Controller Switch Calling of sensor temperature display Each data of the remote controller, indoor unit and outdoor unit can be shown by calling the service monitor mode from the remote controller. ...
  • Page 47 FILE NO. SVM-14059 – 47 –...
  • Page 48 FILE NO. SVM-14059 – 48 –...
  • Page 49 FILE NO. SVM-14059 Error mode detected by indoor unit Operation of diagnostic function Judgment and measures Check Status of Cause of errors Condition code air conditioner 1. Check cables of remote controller and communication adapters. No communication from remote Stop Displayed when Remote controller LCD display OFF (Disconnection) controller (including wireless) and...
  • Page 50 FILE NO. SVM-14059 Error mode detected by outdoor unit Operation of diagnostic function Check code Status of Judgment and measures Cause of errors Condition air conditioner Indoor unit 1. Check discharge temp. sensor (TD). Disconnection, short of discharge Displayed when Stop temp.
  • Page 51 FILE NO. SVM-14059 Operation of diagnostic function Check code Status of Judgment and measures Cause of errors Condition air conditioner Indoor unit Displayed when 1. Check outdoor P.C. board. Current detection circuit error Stop error is detected (AC current detection circuit) 1.
  • Page 52 FILE NO. SVM-14059 Error mode detected by remote controller or central controller (TCC-LINK) Operation of diagnostic function Judgment and measures Status of Check code Cause of errors Condition air conditioner Power supply error of remote controller, Indoor EEPROM error 1. Check remote controller inter-unit wiring. No communication with master indoor unit 2.
  • Page 53 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [E04] — [Indoor / Outdoor communication error] Is setting of group address Check item code [14]. on the remote controller correct? Are inner wiring of the indoor unit Correct wiring and inter-unit wires (1, 2, 3) correct?
  • Page 54 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [F04] — [Discharge temp. sensor (TD) error] Correct connector. Is CN601 connection correct? Sensor error → Replace Is resistance value of TD sensor correct? Check outdoor P.C.
  • Page 55 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) — [F08] [Outside air temp. sensor (TO) error] Correct connector. Is CN602 connection correct? Sensor error → Replace Is resistance value of TO sensor correct? Check outdoor P.C.
  • Page 56 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) — [F31] [EEPROM error] Check outdoor P.C. board. Defect → Replace [H01] [Compressor break down] — Is power supply voltage correct? Correct power supply line.
  • Page 57 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) — [H03] [Current detection circuit error] Check outdoor P.C. board. Defect → Replace [H04] — [Case thermostat operation] Are CN500 connection and Correct connector.
  • Page 58 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) — [P05] [Power supply error] Is the power supply voltage is lower than or over the range? Confirm power supply, etc. 50 Hz : AC 198 to 264 V 60 Hz : AC 198 to 242 V Check outdoor P.C.
  • Page 59 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P19] [4-way valve inverse error] — Is the 4-way valve Is operation of 4-way valve coil is normal? correct? Replace coil (Check pipe temp.
  • Page 60 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P20] — [High pressure protective operation] Is service valve fully opened? Open service valve fully. Reset the power supply and then make a test run Cooling season matching to the season.
  • Page 61 FILE NO. SVM-14059 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P22] — [Fan system error] Is the power supply voltage is lower than or over the range? Check wiring construction. 50 Hz : AC 198 to 264 V Ask to repair the power supply.
  • Page 62 FILE NO. SVM-14059 8-2-5. Diagnostic Procedure for Each Check Code (Outdoor Unit) Temperature sensor Temperature – Resistance value characteristic table TA, TC, TCJ, TE, TS, TO sensors TD, TL sensors Representative value Representative value Resistance value (kΩ Ω Ω Ω Ω ) Resistance value (kΩ...

  • Page 63: Table Inspection Of Outdoor Unit Main Parts

    FILE NO. SVM-14059 8-3. Table Inspection of outdoor unit main parts Parts name Checking procedure Compressor Measure the resistance value of each winding by using the tester. (Model : DA150A1T-20F) Position Resistance value Red – White 1.04 to 1.16 Ω White –...

  • Page 64: Setup At Local Site And Others

    FILE NO. SVM-14059 9. SETUP AT LOCAL SITE AND OTHERS 9-1. Calling of Error History The error contents in the past can be called. TEST Push buttons simultaneously for 4 seconds or more to call the service check mode. TEMP.
  • Page 65 FILE NO. SVM-14059 Indoor unit power-ON sequence Power ON The unit without power feed waits entirely → Waiting status is released by system start Reboot when power is fed on the way 3 minutes elapse Gr construction check Normal ∗...

  • Page 66: Applicable Control Of Outdoor Unit

    FILE NO. SVM-14059 9-3. Applicable Control of Outdoor unit The following controls are enabled by connecting the part “Application control kit” (TCB-PCOS1E2) sold separately. (1) Power peak cut control * The capacity of the outdoor unit is saved by the Demand signal from outside and corresponds to the temporary peak cut.

  • Page 67: Address Setup

    FILE NO. SVM-14059 10. ADDRESS SETUP 10-1. Address Setup Procedure When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address setup completes with power-ON of the outdoor unit.
  • Page 68 FILE NO. SVM-14059 10-2. Address Setup & Group Control Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64) Group address : 0 = Single (Not group control) 1 = Master unit in group control 2 = Sub unit in group control Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from...
  • Page 69 FILE NO. SVM-14059 10-2-2. Automatic Address Example from Unset Address (No miswiring) 1. Standard (One outdoor unit) 1) Single (Master/Sub) Individual 2) Group operation (Twin operation) (Multiple outdoor units = Miltiple indoor units only with serial communication) Sub/Header Sub/Header Sub/Follower Master/Header Sub/Follower Only turning on source power supply (Automatic completion)

  • Page 70: Remote Controller Wiring

    FILE NO. SVM-14059 10-2-3. Automatic Address Example from Unset Address (No miswiring) 1. Standard (One outdoor unit) 1) Single 2) Twin (1-1) (1-2) Individual Master/Header Sub/Follower (Master/Header) Only turning on source power supply (Automatic completion) 2. Group operation (Multiple outdoor units = Multiple indoor units with serial communication only, without twin) Sub/Header Sub/Header Master/Header...
  • Page 71 FILE NO. SVM-14059 10-3. Remote Controller Wiring Strip off approx. 9 mm the wire to be connected. Wiring diagram For single system, use non polarity, 2 core wire is used for wiring of the remote controller. Terminal block for remote controller Terminal block (0.5 mm²...

  • Page 72: Confirmation Of Indoor Unit No. Position

    FILE NO. SVM-14059 TEST Push buttons simultaneously for 4 seconds or more. (← ← ← ← ← Line address) Using the temperature setup buttons, to the CODE No. Using timer time buttons, set the line address. Push button. (OK when display goes on.) (←...
  • Page 73 FILE NO. SVM-14059 2. To know the position of indoor unit body by address To confirm the unit No. in the group control (Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.) The indoor unit numbers in the group control are successively displayed, and fan, louver, and drain pump of the corresponding indoor unit are turned on.

  • Page 74: How To Exchange Compressor

    FILE NO. SVM-14059 11. HOW TO EXCHANGE COMPRESSOR 11-1. Exchanging Procedure of Compressor (Outline) START Open PMV forcedly and then recover refrigerant Has refrigerant recovery work been done? using a refrigerant recovery unit. Turn off the leakage breaker. Never recover the refrigerant to the outdoor unit. For the refrigerant recovery work during reinstallation Remove the defective compressor.

  • Page 75: Detachments

    FILE NO. SVM-14059 12. DETACHMENTS 12-1. RAV-SM304AT , SM404AT Part name Procedure Remarks  Common 1. Detachment procedure NOTE Upper cabinet Wear gloves for this job. Otherwise, you may injure your hands on the parts, etc. Waterproof cover 1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner.
  • Page 76 FILE NO. SVM-14059 Remarks Part name Procedure ‚ Front cabinet 1. Detachment 1) Perform step 1 in  2) Remove the fixing screws (ST1TØ4 × 10L 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST1TØ4 ×...
  • Page 77 FILE NO. SVM-14059 Part name Procedure Remarks ƒ Inverter 1) Perform work of item 1 in  Inverter cover assembly 2) Remove screw (ST1TØ4 × 10L 2 pcs.) of the upper part of the front cabinet. P.C. board (Soldered surface) •...
  • Page 78 FILE NO. SVM-14059 Part name Procedure Remarks „ Control board 1. Disconnect the leads and connectors connected to assembly the other parts from the control board assembly. 1) Leads • 3 leads (black, white, orange) connected to CN603 terminal block. CN601 CN600 CN701...
  • Page 79 FILE NO. SVM-14059 Part name Procedure Remarks … Side cabinet 1. Side cabinet (right) 1) Perform step 1 in ‚ and all the steps in ƒ 2) Remove the fixing screw (ST1TØ4 × 10L 4 pcs.) used for securing the side cabinet to the bottom plate and valve fixing panel.
  • Page 80 FILE NO. SVM-14059 Remarks Part name Procedure ‡ Compressor 1) Perform work of item 1 of  ‚ ƒ „ … 2) Extract refrigerant gas. 3) Remove the partition board. (ST1TØ4 × 10L 3 pcs.) 4) Remove the sound-insulation material. 5) Remove terminal cover of the compressor, Compressor and disconnect lead wire of the compressor...
  • Page 81 FILE NO. SVM-14059 Part name Procedure Remarks ‰ Electronic 1. Detachment expansion valve 1) Perform step 1 in ‚ , all the steps in ƒ coil and 1 in … Lead 2) Remove the coil by rotating it at 90° connecting part toward either direction.
  • Page 82 FILE NO. SVM-14059 Remarks Part name Procedure TE sensor (Outdoor heat exchanging temperature sensor) • Attachment With the leads pointing downward and the sensor leads pointing in the direction shown in the figure, install the sensor onto the straight pipe part of the condenser output pipe. Detail C TS sensor (Suction pipe temperature sensor) •...
  • Page 83 FILE NO. SVM-14059 Part name Procedure Remarks Replacement of 1) Cut the sensor 100 mm longer than old temperature sensor one. Cutting here Thermal for servicing only Connector sensor part 2) Cut the protective tube after pulling out it (200 mm). Common service 3) Move the protective tube toward the Cutting here...

  • Page 84: Exploded Views And Parts List

    FILE NO. SVM-14059 13. EXPLODED VIEWS AND PARTS LIST 13-1. RAV-SM304ATP-E, RAV-SM304ATP-TR – 84 –...
  • Page 85 FILE NO. SVM-14059 RAV- Location Parts No. Description SM304ATP-E SM304ATP-TR 43T42352 ASM-COAT-BASE 43T00653 ASM-COAT-P-F-PV 43T00652 ASM-COAT-PAR 43T00605 ASM-CABI-F-S 43T00654 ASM-CABI-SIDE-R 43T00602 ASM-COAT-C-S-L 43T19348 PACKED VALVE COVER 43T00604 ASM-COAT-CABI-U 43T39348 ASM-M-BASE 43T41420 COMPRESSOR 43T46343 4 WAY VALVE 43T63320 4 WAY VALVE COIL ASSEMBLY 43T46347 BODY PMV 43T63329...
  • Page 86 FILE NO. SVM-14059 – 86 –...
  • Page 87 FILE NO. SVM-14059 RAV- Location Parts No. Description SM304ATP-E SM304ATP-TR 43T62320 HEATSINK 43T6V513 PC BOARD ASSY 43T60384 TERMINAL-6P 43T60326 FUSE 43T60428 SENSOR,TE 43T60429 SENSOR,TS 43T60431 SENSOR,TD 43T50331 SENSOR,TO 43T62313 BASE-PLATE-PC 43T60426 FUSE 43T60425 FUSE-HOLDER – 87 –...

  • Page 88: Rav-Sm404Atp-E, Rav-Sm404Atp-Tr

    FILE NO. SVM-14059 13-2. RAV-SM404ATP-E, RAV-SM404ATP-TR – 88 –...
  • Page 89 FILE NO. SVM-14059 RAV- Location Parts No. Description SM404ATP-E SM404ATP-TR 43T42352 ASM-COAT-BASE 43T00653 ASM-COAT-P-F-PV 43T00652 ASM-COAT-PAR 43T00605 ASM-CABI-F-S 43T00654 ASM-CABI-SIDE-R 43T00602 ASM-COAT-C-S-L 43T19348 PACKED VALVE COVER 43T00604 ASM-COAT-CABI-U 43T39348 ASM-M-BASE 43T41446 COMPRESSOR 43T46343 4 WAY VALVE 43T63320 4 WAY VALVE COIL ASSEMBLY 43T46347 BODY PMV 43T63329...
  • Page 90 FILE NO. SVM-14059 – 90 –...
  • Page 91 FILE NO. SVM-14059 RAV- Location Parts No. Description SM404ATP-E SM404ATP-TR 43T62320 HEATSINK 43T6V514 PC BOARD ASSY 43T60384 TERMINAL-6P 43T60326 FUSE 43T60428 SENSOR,TE 43T60429 SENSOR,TS 43T60431 SENSOR,TD 43T50331 SENSOR,TO 43T62313 BASE-PLATE-PC 43T60426 FUSE 43T60425 FUSE-HOLDER – 91 –...

  • Page 92: Rav-Sm304Atjp-E

    FILE NO. SVM-14059 13-3. RAV-SM304ATJP-E – 92 –...
  • Page 93 FILE NO. SVM-14059 RAV- Location Parts No. Description SM304ATJP-E 43T42352 ASM-COAT-BASE 43T00653 ASM-COAT-P-F-PV 43T00652 ASM-COAT-PAR 43T00605 ASM-CABI-F-S 43T00654 ASM-CABI-SIDE-R 43T00602 ASM-COAT-C-S-L 43T19348 PACKED VALVE COVER 43T00604 ASM-COAT-CABI-U 43T39347 ASM-M-BASE 43T41420 COMPRESSOR 43T46343 4 WAY VALVE 43T63320 4 WAY VALVE COIL ASSEMBLY 43T46347 BODY PMV 43T63329...
  • Page 94 FILE NO. SVM-14059 – 94 –...
  • Page 95 FILE NO. SVM-14059 RAV- Location Parts No. Description SM304ATJP-E 43T62320 HEATSINK 43T6V513 PC BOARD ASSY 43T60384 TERMINAL-6P 43T60326 FUSE 43T60428 SENSOR,TE 43T60429 SENSOR,TS 43T60431 SENSOR,TD 43T50331 SENSOR,TO 43T62313 BASE-PLATE-PC 43T60426 FUSE 43T60425 FUSE-HOLDER – 95 –...

  • Page 96: Rav-Sm404Atjp-E

    FILE NO. SVM-14059 13-4. RAV-SM404ATJP-E – 96 –...
  • Page 97 FILE NO. SVM-14059 RAV- Location Parts No. Description SM404ATJP-E 43T42352 ASM-COAT-BASE 43T00653 ASM-COAT-P-F-PV 43T00652 ASM-COAT-PAR 43T00605 ASM-CABI-F-S 43T00654 ASM-CABI-SIDE-R 43T00602 ASM-COAT-C-S-L 43T19348 PACKED VALVE COVER 43T00604 ASM-COAT-CABI-U 43T39347 ASM-M-BASE 43T41446 COMPRESSOR 43T46343 4 WAY VALVE 43T63320 4 WAY VALVE COIL ASSEMBLY 43T46347 BODY PMV 43T63329...
  • Page 98 FILE NO. SVM-14059 – 98 –...
  • Page 99 FILE NO. SVM-14059 RAV- Location Parts No. Description SM404ATJP-E 43T62320 HEATSINK 43T6V514 PC BOARD ASSY 43T60384 TERMINAL-6P 43T60326 FUSE 43T60428 SENSOR,TE 43T60429 SENSOR,TS 43T60431 SENSOR,TD 43T50331 SENSOR,TO 43T62313 BASE-PLATE-PC 43T60426 FUSE 43T60425 FUSE-HOLDER – 99 –...
  • Page 100 FILE NO. SVM-13072 WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit. The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer.
  • Page 101 TOSHIBA CARRIER (THAILAND) CO.,LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

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