Toshiba RAS-13G2KCVP-T Service Manual
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Toshiba RAS-13G2KCVP-T Service Manual

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SERVICE MANUAL

Indoor Unit
RAS-10G2K C VP- T
RAS-13G2K C VP- T
RAS-1 8 G2K C VP- T
R410A
FILE NO. SVM-15058-1
SPLIT TYPE
Outdoor Unit
RAS-10G2A C VP- T
R AS-13G2A C VP- T
RAS-1 8 G2A C VP- T
Revised on Oct , 2015

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  • Page 1: Service Manual

    FILE NO. SVM-15058-1 SERVICE MANUAL SPLIT TYPE Indoor Unit Outdoor Unit RAS-10G2A C VP- T RAS-10G2K C VP- T R AS-13G2A C VP- T RAS-13G2K C VP- T RAS-1 8 G2A C VP- T RAS-1 8 G2K C VP- T R410A Revised on Oct , 2015...

  • Page 2: Table Of Contents

    FILE NO. SVM-15058 CONTENTS 1. SAFETY PRECAUTIONS ................3 2. SPECIFICATIONS ..................6 3. REFRIGERANT R410A ................8 4. CONSTRUCTION VIEWS ................ 16 5. WIRING DIAGRAM .................. 18 6. SPECIFICATIONS OF ELECTRICAL PARTS ......... 19 7. REFRIGERANT CYCLE DIAGRAM ............20 8.

  • Page 3: Safety Precautions

    FILE NO. SVM-15058 1. SAFETY PRECAUTIONS Installing, staring up, and servicing air-conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.). Only trained, qualified installers and service mechanics should install, start-up, and service this equipment. Untrained personnel can perform basic maintenance functions such as cleaning coils.
  • Page 4 FILE NO. SVM-15058 DANGER FOR USE BY QUALIFIED PERSONS ONLY. • • TURN OFF MAIN POWER SUPPLY BEFORE.ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK. • CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED WRONGLY, ELECTRIC PARTS MAY BE DAMAGED.
  • Page 5 FILE NO. SVM-15058 CAUTION CAUTION Exposure of unit to water or other moisture before installation could result in electric shock. Do not store it in a wet • basement or expose to rain or water. After unpacking the unit, examine it carefully for possible damage. Report any damages to your distributor. •...

  • Page 6: Specifications

    FILE NO. SVM-15058 2. SPECIFICATIONS 2-1. Specifications Unit model Indoor RAS-10G2KCVP-T RAS-13G2KCVP-T RAS-18G2KCVP-T Outdoor RAS-10G2ACVP-T RAS-13G2ACVP-T RAS-18G2ACVP-T Cooling capacity (kW) Cooling capacity range (kW) 1.3-3.5 1.3-4.1 1.1-6.0 Power supply 1Ph/50Hz/220V Electric Indoor Operation mode Cooling Cooling Cooling characteristic Running current 0.24...

  • Page 7: Operation Characteristic Curve

    RAS-10G2KCVP-T RAS-13G2KCVP-T RAS-18G2KCVP-T Capacity ratio: 100% = 2.6kW (RAS-10G2KCVP-T) Conditions 3.8kW (RAS-13G2KCVP-T) Indoor: DB27°C/WB19°C 5.1kW (RAS-18G2KCVP-T) Indoor air flow: High Pipe length: 7.5m 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor Temp. (°C)

  • Page 8: Refrigerant R410A

    FILE NO. SVM-15058 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 9 FILE NO. SVM-15058 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 10 FILE NO. SVM-15058 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 11 FILE NO. SVM-15058 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 12 FILE NO. SVM-15058 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 13: Recharging Of Refrigerant

    FILE NO. SVM-15058 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 14: Brazing Of Pipes

    FILE NO. SVM-15058 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 15 FILE NO. SVM-15058 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 16: Construction Views

    FILE NO. SVM-15058 4. CONSTRUCTION VIEWS 4-1. Indoor Unit Heat exchanger Plasma ion charger (Air purifier) Front panel Air filter Picoion generator Knock out system Knock out system 70.5 131.5 104.3 Wiress remote controller Drain hose (0.6m) Hanger Hanger Connecting pipe(0.37m) Connecting pipe(0.41m) (For 25, 35 Series : Flare 9.52mm)
  • Page 17 FILE NO. SVM-15058 4-2. Outdoor Unit Ø6 hole R5.5 Ø6 hole Ø11x14 hole A detail Drawing (Back leg) 2- 11 x 14 Hole Ø 25 Drain outlet Ø B Detail Drawing (Front leg) (For Ø8 -Ø 10 anchor bolt) FAN-GUARD Ø...

  • Page 18: Wiring Diagram

    FILE NO. SVM-15058 5. WIRING DIAGRAM - 18 -...

  • Page 19: Specifications Of Electrical Parts

    FILE NO. SVM-15058 6. SPECIFICATIONS OF ELECTRICAL PARTS 6-1. Indoor Unit Part s n ame Type Specif icat io ns MF-340-30-3 Fan motor (for indoor) DC250~370V, 30W Room temp. sensor (TA-sensor) ( - ) at 25°C Ω Heat exchanger temp. sensor (TC-sensor) 10kΩ...

  • Page 20: Refrigerant Cycle Diagram

    FILE NO. SVM-15058 7. REFRIGERANT CYCLE DIAGRAM 7-1. Refrigerant Cycle Diagram RAS-10G2KCVP-T / RAS-10G2ACVP-T RAS-13G2KCVP-T / RAS-13G2ACVP-T Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 20m Min. : 1m Pressure measurement Chargeless : 15m Deoxidized copper pipe Gauge attaching port Outer dia.
  • Page 21 FILE NO. SVM-15058 RAS-18G2KCVP-T / RAS-18G2ACVP-T Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 20m : 3m Min. Pressure measurement Chargeless : 15m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Charge : 20g/m Vacuum pump connecting port Thickness : 0.8mm (16 to 20m)
  • Page 22 (rps) Indoor Outdoor T1 (°C) 27/19 35/- RAS-10G2KCVP-T 0.9 to 1.1 14 to 17 High High RAS-13G2KCVP-T 0.9 to 1.1 10 to 13 High High 0.9 to 1.1 10 to 13 High High RAS-18G2KCVP-T NOTES : 1. Measure surface temperature of heat exchanger pipe around center of heat exchaner path U bent.

  • Page 23: Control Block Diagram

    FILE NO. SVM-15058 8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit Indoor Unit Control Unit M.C.U. Heat Exchanger Sensor (TCJ) Louver Functions Motor Heat Exchanger Sensor (TC) · Cold draft preventing Function Room Temperature Sensor (TA) · 3-minute Delay at Restart for Compressor Louver Motor Drive Control ·...
  • Page 24 FILE NO. SVM-15058 8-2. Outdoor Unit (Inverter Assembly) - 24 -...

  • Page 25: Operation Description

    FILE NO. SVM-15058 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 26 FILE NO. SVM-15058 9-2. Operation Description 1. Basic operation ......................26 1. Operation control ....................26 2. Cooling operation ....................27 3. AUTO operation ..................... 28 4. DRY operation ......................28 2. Indoor fan motor control ..................... 29 3. Outdoor fan motor control ................... 31 4.
  • Page 27 FILE NO. SVM-15058 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 28: Basic Operation

    FILE NO. SVM-15058 Operation flow and applicable data, etc. Description Item 1. Basic Cooling/Heating operation operation The operations are performed in the following parts by controls according to cooling conditions. 1) Receiving the operation ON signal of the remote controller, the cooling operation signal starts being transferred form the indoor controller to the outdoor unit.

  • Page 29: Cooling Operation

    FILE NO. SVM-15058 Operation flow and applicable data, etc. Description Item 1) Detects the room temperature (Ta) when 1. Basic 3. AUTO operation the operation started. operation Selection of operation mode As shown in the following figure, the operation starts by 2) Selects an operation mode from Ta in selecting automatically the status of room temperature the left figure.

  • Page 30: Indoor Fan Motor Control

    +1.0 *5 : Fan speed = (M + –L) x 1/4 + L +0.5 (Linear approximation L(W7) from M+ and L) (Table 1) Indoor fan air flow rate RAS-10G2KCVP-T RAS-13G2KCVP-T RAS-18G2KCVP-T Fan speed Cooling Cooling Cooling Cool PAP Fan speed...
  • Page 31 FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 1 The operation command sent 3..Outdoor fan The speed of the outdoor unit side is controlled according to speed from the remote controller is motor control of compressor motor (rps) and outdoor temperature (To). processed by the indoor unit controller and transferred to the controller of the outdoor...

  • Page 32: Capacity Control

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 1 The difference between set 4.. Capacity The cooling capacity depending on the load is adjusted. control According to difference between the set up value of temperature and the room temperature, temperature on remote controller the capacity is adjusted by the compressor revolution.
  • Page 33 FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 1 When temperature of the 6. Low <In cooling/dry operation> temperature exchanger drops below (Prevent-freezing control for indoor heat exchanger) release 5°C, the compressor speed In cooling/dry operation, the sensor of indoor heat exchanger detects protective is reduced.

  • Page 34: Louver Control

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 7. Louver control This function controls the air direction of the indoor unit. 1) Louver • The position is automatically controlled according to the operation position mode (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 35 FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 7. Louver control 2) Louver position in heating operation Manual and automatic operation HI-POWER operation Initial setting is directs downward (43.1°) Default setting is directs downward (26.1°) Wide air direction Wide position is directs downward (43.1°) Wide-angle Right wide...

  • Page 36: Swing

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 7. Louver control 2) Wind direction adjustment Horizotal blowing Inclined blowing • The Up-Down louver position can be arbitrarily set up by pressing [FIX ] button. • The Left-Right louver position can be arbitrarily set up by pressing [FIX...

  • Page 37: Eco Operation

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 8. ECO <Cooling operation> When pressing [ECO] button on the remote controller, a 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 38: Temporary Operation

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 9..Temporary 1 When pressing [RESET] button, the Pressing [RESET] button starts the temporary operation operation of [AUTO] operation. When keeping [RESET] button temporary [AUTO] operation starts. pressed for 10 seconds or more, the temporary [COOL] 2 When keeping [RESET] button pressed for 3 seconds or more, Pi, Pi, Pi operation is performed.

  • Page 39: Plasma Ionizer Purifier Control [Detection Of Abnormality]

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 1. Purpose 10. Plasma ionizer purifier control [Detection of abnormality] The air purifying control function is to alert the user to trouble in the ionizing or Plasma ionizer purifier operation plasma ionixer purifier operation.

  • Page 40: Pulse Modulating Valve (P.m.v.) Control

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 12. Pulse This function controls throttle amount of the 1) When starting the operation, move the Modulating refrigerant in the refrigerating cycle. valve once until it fits to the stopper. valve (P.M.V.) (Initialize) According to operating status of the air conditioner,...

  • Page 41: Self-Cleaning Function

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 13. 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 42 FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 13. Self-Cleaning function 13-1-1. Self-Cleaning diagram Operation display FCU fan rpm is depend on presetting. (500RPM) OPEN (12.7º) FCU louver OPEN CLOSE ON or OFF ON or OFF Timer display depend on presetting of timer function.

  • Page 43: Quiet Mode

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 14. Remote-A or B 1. Purpose Setting the remote controller selection To separate using of remote control for each indoor This operation is to operate only one unit in case of 2 air conditioner are installed nearly. indoor unit using one remote controller.

  • Page 44: Short Timer

    FILE NO. SVM-15058 Item Operation flow and applicable data, etc. Description 17. Short Timer In the normal condition, after switching one circuit Purpose breaker, 3-minute delay time for compressor and To start the unit immediately for the purpose of 1 hour for plasma air purifier are set for the testing, trial...etc, short timer can be used.

  • Page 45: Outdoor Quiet Control

    FILE NO. SVM-15058 Item Operation flow and applicable data,etc Description ([POWER-SEL] button on the remote controller 1. Purpose 19. POWER Selection is pressed) The function is used when its circuit Mode − Power Selection 75% is 75% of maximum breaker is shared with other electrical current.

  • Page 46: F Cu Display Lamp Rightness Control

    FILE NO. SVM-15058 Item Operation flow and applicable data,etc Description 21. FCU Display lamp brighness control Purpose It is necessary to decrease the display lamp brightness or turn it LAMP BRIGHTNESS ADJUSTMENT off. While operating (Auto, Cool, Heat or Dry), select Rise Press to adjust brightness which can be set at 4 levels or...

  • Page 47: Auto Restart Function

    FILE NO. SVM-15058 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 48: How To Cancel The Auto Restart Function

    FILE NO. SVM-15058 9-3-2. How to Cancel the Auto Restart Function To cancel Auto Restart Function, proceed as follows. 1. The power supply to the unit must be ON ; The function will not set or reset if the power supply is OFF. 2.

  • Page 49: Operation Of Remote Control

    FILE NO. SVM-15058 9-4. Remote control 9-4-1. Remote control and its functions I nfrared signal emitter Memory and preset button (PRESET) Start/Stop button Temperature up/down and Timer or clock up/down button (TEMP.) Mode select button (MODE) Swing louver button (SWING) Fan speed button (FAN) Wide air flow, spot air flow (AIR FLOW) Set louver button for vertical direction (FIX )
  • Page 50 FILE NO. SVM-15058 How to set WEEKLY TIMER Press to enter WEEKLY TIMER setting. Blink PRESET TEMP. Press to select desired day in sequence. The sequence of day symbol appears on the LCD PURE WEEKLY SUMO TUWETHFRSA (All day) Press to select the program number.
  • Page 51 FILE NO. SVM-15058 Press to select desired operation. Press to select desired temperature. TEMP. • The temperature can be set between 17°C and 30°C. Press to select the desired fan speed. Add operations, if required. • Press to use ECO operation •...
  • Page 52 FILE NO. SVM-15058 Edit Weekly timer program To edit the program after conflrming the weekly timer setting Page 21 , follow steps on below. Press • The day of the week and the program number of the current day will be displayed. Press to select the day of the week and press to select program number to be confirmed.
  • Page 53 FILE NO. SVM-15058 To delete programs The individual program Press • The day of the week and the program number is displayed. • elect the day to delete the program. Press to select the program number to be deleted. PRESET TEMP.
  • Page 54 FILE NO. SVM-15058 2. AUTOMATIC OPERATION To automatically select cooling or fan only operation. : Select the desiredimode. 1. Press Press 2. Press Press : Select the desired temperature. , HIGH Press : Select AUTO, LOW , LOW+ , MED , MED+ or Quiet 3.
  • Page 55 FILE NO. SVM-15058 9. AIR VOLUME, AIR DIRECTION AND SWING LOUVERS • Changing the air volume, press FAN button • Changing the air direction, press FIX button When changing the air to the When changing the air to the vertical direction, release the horizontal position, release left side at the desired position.
  • Page 56 FILE NO. SVM-15058 10. COMFORT AIR FLOW • Wide air flow : Air flows around the room. • Spot air flow : Air flow is concentrated at one point. While operating (Auto, Cool, Heat, Dry and these modes with PURE), Select •...
  • Page 57 FILE NO. SVM-15058 13. QUIET OPERATION To operate at ultra low fan speed for quiet operation (except in DRY mode) Press : Start and stop the operation. Note: Under certain conditions, QUIET operation may not provide adequate cooling due to low sound features. 14.

  • Page 58: Name And Functions Of Indications On Remote Controller

    FILE NO. SVM-15058 9-4-3. Name and Functions of Indications on Remote Controller [Display] All indications, except for the clock time indicator, are displayed by pressing the button. Transmission mark TIMER and weekly timer indicator This transmission mark indicates when the The time setting for timer operation and weekly remote controller transmits signals to the indoor timer function is indicated.

  • Page 59: Installation Procedure

    FILE NO. SVM-15058 10. INSTALLATION PROCEDURE 10-1. Installation Diagram of Indoor and Outdoor Units Hook Installation For the rear left and left piping plate Wall Insert the cushion between the indoor unit and wall, and tilt the indoor unit for Bush body better operation.
  • Page 60 FILE NO. SVM-15058 10-2. Installation 10-2-1. Optional installation parts Part Parts name Q'ty Code Refrigerant piping Liquid side : ∅6.35 mm each ∅ Gas side 9.52 mm (10,13k Series) ∅12.70 mm (18k Series) Pipe insulating material (polyethylene foam, 6 mm thick) Putty, PVC tapes each Fixing bolt arrangement of outdoor unit...
  • Page 61 FILE NO. SVM-15058 10-2-2. Accessory and installation parts Part Part Part Part name (Q’ty) Part name (Q’ty) Part name (Q’ty) Wireless remote control x 1 Battery x 2 Installation plate x 1 Flat head wood screw Remote control holder x 1 Mounting screw ∅4 x 25 s x 6 ∅3.1 x 16 s x 2 Others...
  • Page 62 FILE NO. SVM-15058 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 63: Installation Place

    FILE NO. SVM-15058 10-3. Indoor Unit 10-3-2. Cutting a Hole and Mounting Installation Plate 10-3-1. Installation Place • A place which provides the spaces around the Cutting a hole indoor unit as shown in the diagram. When installing the refrigerant pipes from the rear. •...

  • Page 64: Piping And Drain Hose Installation

    FILE NO. SVM-15058 When the installation plate is directly 10-3-3. Piping and Drain Hose Installation mounted on the wall Piping and drain hose forming 1. Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook •...
  • Page 65 FILE NO. SVM-15058 How to remove the drain hose CAUTION • The drain hose can be removed by removing the Firmly insert the drain hose and drain cap; screw securing the drain hose and then pulling out otherwise, water may leak. the drain hose.
  • Page 66 FILE NO. SVM-15058 10-3-4. Indoor Unit Fixing Bend the connecting pipe within a radius of 30 mm. To connect the pipe after installation of the unit 1. Pass the pipe through the hole in the wall and hook (figure) the indoor unit on the installation plate at the upper hook.
  • Page 67 FILE NO. SVM-15058 10-3-6. Drainage CAUTION 1. Run the drain hose sloped downwards. Arrange the drain pipe for proper drainage from NOTE : the unit. Improper drainage can result in dew-dropping. • The hole should be made a slight downward slant on the outdoor side.
  • Page 68 FILE NO. SVM-15058 CAUTION 10-4. Outdoor Unit 10-4-1. Installation Place 1. Install the outdoor unit without anything blocking the discharging air. • A place which provides enough space around the 2. When the outdoor unit is installed in a place outdoor unit as shown in the diagram.
  • Page 69 FILE NO. SVM-15058 Tightening Connection 10-4-3. Evacuating After the piping has been connected to the indoor Align the centers of the connecting pipes and tighten unit, perform the air purge. the flare nut as much as possible with your fingers. Then tighten the nut with a wrench and torque AIR PURGE wrench as shown in the figure.
  • Page 70 FILE NO. SVM-15058 CAUTION • KEEP IMPORTANT 5 POINTS FOR PIPING WORK (1) Take away dust and moisture (Inside of the connecting pipes.) (2) Tight the connection (between pipes and unit) (3) Evacuate the air in the connecting pipes using a VACUUM PUMP.

  • Page 71: Wiring Connection

    The power supply can be selected to connect to indoor unit or outdoor unit. Choose proper way and connect the power supply and connecting cable by follow the instruction as following. Model RAS-10G2KCVP-T RAS-13G2KCVP-T RAS-18G2KCVP-T Power source 50Hz, 220V Single phase Maximum running current 4.75A...
  • Page 72 FILE NO. SVM-15058 10-5-2. Power Supply and Connecting Cable Connection Power Supply Input at Outdoor Unit Terminal Block (Optional) Indoor Unit Outdoor Unit Connecting CABLE Terminal block Connecting cable connect to terminal block (1, 2, 3, ˙) Connecting cable Power cord 1 2 3 Stripping length of the connecting cable Earth line...
  • Page 73 FILE NO. SVM-15058 10-6. Others Note : Repeat above step to reset Remote Control to be A. 10-6-1. Gas leak test 2. Remote Control A has not “A” display. 3. Default setting of Remote Control from factory is A. Flare nut connections (Indoor unit) F ig.

  • Page 74: How To Diagnose The Trouble

    FILE NO. SVM-15058 11. HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.) Table 11-1 Troubleshooting Procedure First Confirmation...
  • Page 75 FILE NO. SVM-15058 CAUTION A high voltage (equivalent to the supply voltage) is also energized to ground through the sensors, PMV and other low-voltage circuits. The sensor leads and other wires are covered with insulated tubes for protection. Nevertheless, care must be taken to ensure that these wires are not pinched.
  • Page 76 FILE NO. SVM-15058 11-1. First Confirmation 11-1-1. Confirmation of Power Supply Confirm that the power breaker operates (ON) normally. 11-1-2. Confirmation of Power Voltage Confirm that power voltage is AC 220–230–240 ± 10%. If power voltage is not in this range, the unit may not operate normally. 11-1-3.

  • Page 77: Primary Judgment

    FILE NO. SVM-15058 11-2. Primary Judgment To diagnose the troubles, use the following methods. 1) Judgment by flashing LED of indoor unit 2) Self-diagnosis by service check remote controller 3) Judgment of trouble by every symptom Firstly use the method 1) for diagnosis. Then, use the method 2) or 3) to diagnose the details of troubles. 11-3.
  • Page 78 FILE NO. SVM-15058 11-4. Self-Diagnosis by Remote Controller (Check Code) 1. If the lamps are indicated as shown B to E in Table 11-4-1, execute the self-diagnosis by the remote controller. 2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condition and indicates the information of the self-diagnosis on the display of the remote controller with the check codes.
  • Page 79 FILE NO. SVM-15058 11-4-2 Caution at Servicing 1. After using the service mode of remote controller finished, press the [ ] button to reset the remote controller to normal function. 2. After finished the diagnosis by the remote controller, turn OFF power supply and turn its ON again to reset the air conditioner to normal operation.
  • Page 80 FILE NO. SVM-15058 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Serial signal 1) Defective wiring of the Indoor unit Flashes when 1) to 3) The outdoor unit never and connecting connecting cable or operates...
  • Page 81 FILE NO. SVM-15058 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Outdoor P.C. Current on inverter circuit All OFF Flashes after 1. Remove connecting lead wire of the board is over limit in short time.
  • Page 82 FILE NO. SVM-15058 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Compressor drive output error. All OFF Flashes after 1. Check installation conditions such as (Relation of voltage, current error is detected packed valve opening, refrigerant 8 times*.
  • Page 83 FILE NO. SVM-15058 Block distinction Operation of diagnosis function Action and Judgment Check Check Display Block Cause of operation conditioner code code flashing error status Compressor does not rotate. All OFF Flashes after 1. Remove connecting lead wire of the Because of missed wiring, error is detected compressor, and operate again.
  • Page 84 FILE NO. SVM-15058 Block distinction Operation of diagnosis function Action and Judgment Check Check Display Block Cause of operation conditioner code code flashing error status Return signal of the outdoor Indoor unit Flashes when 1. . Check power supply (Rate +10%) operates error is detected unit has been sent when...

  • Page 85: Judgement Of Trouble By Every Symptom

    FILE NO. SVM-15058-1 11-5. Judgement of Trouble by Every Symptom 11-5-1. Indoor unit (Including remote controller) Operation (1) Indoor unit is not operated. Check Item Considerable principle cause Turn off power supply once, and Measures 5 second later, turn it on again. Item by symptoms Is OPERATION indicator flashing? Is it possible to turn on...
  • Page 86 FILE NO. SVM-15058-1 (3) Only the indoor motor fan does not operate <Primary check> 1. Is it possible to detect the power supply voltage (AC220–240V) between on the terminal block? 2. Does the indoor fan motor operate in cooling operation? (In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.) Turn off power...
  • Page 87 FILE NO. SVM-15058-1 Is it possible to Does check display Replace change airflow level remote on remote show high? to “HIGH”? Change the new PC Replace board. Does fan speed motor change? Fan motor operates normally. Is it possible to Does check cross-flow Replace bearing rotate cross-flow fan by...
  • Page 88 FILE NO. SVM-15058-1 (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 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 89 FILE NO. SVM-15058-1 (5) Troubleshooting for remote controller <Primary check> Check that A or B selected on the main unit is matched with A or B selected on the remote controller. There is no beep from the indoor unit Push the [ ] button.
  • Page 90 FILE NO. SVM-15058-1 11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire) (1) Outdoor unit does not operate 1) Is the voltage between of the indoor terminal block varied? Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow- ing diagram.
  • Page 91 FILE NO. SVM-15058-1 11-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E <Check procedure> Gas leakage, Discharge temp. error, disconnection of TS/TC gas leakage sensors (Check code 02, 1C) (Check code 03, 1E) Valve drive check Is coil of the pulse motor valve Set it correctly.

  • Page 92: How To Diagnose Trouble In Outdoor Unit

    FILE NO. SVM-15058-1 11-7. How to Diagnose Trouble in Outdoor Unit • Connect discharge resistance Check Power Supply (approx. 100Ω, 40W) or (Voltage Rate ±10%) soldering iron (plug) between +, – terminals of the electrolytic capacitor (with printed CAUTION HIGH VOLTAGE) on P.C.
  • Page 93 FILE NO. SVM-15058-1 Does outdoor fan operate normally? Turn OFF power supply. Does compresser operate normally? Remove connector CN300 of outdoor fan motor. Check winding resistance by ohmmeter are correct? Compressor Check rotor locking by rotate is normal with hand. Can it rotate? Turn OFF power supply.
  • Page 94 FILE NO. SVM-15058-1 11-8. Trou bleshooting 11-8-1. How to Check Whether the Air Purifier and Minus Ion Gerneration are Good or NG Turn off the power breaker once, and turn on again after 10 seconds. To item “Power supply is not turned on” Does the OPERATION indicator flash? Turn off the power breaker and remove CN401 (Micro switch connector).
  • Page 95 FILE NO. SVM-15058-1 11-9. How to Check Simply the Main Parts (2) Inspection procedures 1) When a P.C. board is judged to be defective, 11-9-1. 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 96 FILE NO. SVM-15058-1 11-9-2. P .C . Board Layout +15V +12V [1] Sensor characteristic table TD : Discharge temp. sensor TA : Room temp. sensor TC and TCJ : Heat exchanger temp. sensor TO : Outdoor temp. sensor TA,TC,TCJ,TO,TE,TS TE : Outdoor heat exchanger temp. sensor TS : Suction temp.
  • Page 97 FILE NO. SVM-15058-1 11-9-3. Indoor Unit (Other Parts) Part name Checking procedure Room temp. (TA) sensor Disconnect the connector and measure the resistance value with tester. Heat exchanger (TC,TCJ) (Normal temp.) sensor Temperature 10°C 20°C 25°C 30°C 40°C Sensor TA, TC, TCJ (kΩ) 20.7 12.6 10.0...
  • Page 98 FILE NO. SVM-15058-1 11-9-5. Checking Method for Each Part Part name Checking procedure Electrolytic capacitor 1. Turn OFF the power supply curcuit breaker. (For boost, smoothing) 2. Discharge all three capacitors completely. 3. Check that safety valve at the bottom of capacitor is not broken. 4.

  • Page 99: How To Simply Judge Whether Outdoor Fan Motor Is Good Or Bad

    FILE NO. SVM-15058-1 11-10. 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 tens seconds though it started rotating. • Outdoor fan motor rotates or does not rotate according to the position where the fan stopped, etc. Remote controller check code “02 : Outdoor block, 1A : Outdoor fan drive system error”...

  • Page 100: How To Replace The Main Parts

    FILE NO. SVM-15058-1 12. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. •...
  • Page 101 FILE NO. SVM-15058-1 Part name Work procedure Remarks BUSH-BODY(R) 1) Push the bottom of part and slide to the BUSH-BODY(R) BUSH-BODY(L) right side. BUSH-BODY(L) 1) Push the bottom of part and slide to the left side. <Point to note during re-assemble The claw of Front panel must be lower ASM-FRAME Front panel>...
  • Page 102 FILE NO. SVM-15058-1 Part name Work procedure Remarks Electric parts 7) Disconnect the connector of High voltage box assembly. fan-motor, louver-motor and high voltage generator connector generator. motor Louver connector Fan motor 8) Pull out TCJ sensor from sensor holder of the evaporator.
  • Page 103 FILE NO. SVM-15058-1 Part name Work procedure Remarks Frame 1) Follow to the procedure 2) Remove the fixing screws (5 pcs.) 2 Screws Screws 3) Remove screw of earth lead on plate earth. Earth screw 4) Take off 5 hooks from rear side then remove Frame assembly.
  • Page 104 FILE NO. SVM-15058-1 Part name Work procedure Remarks Plasma-ion 1) Follow to the procedure in the item 5 Screws charger, High 2) Remove 5 screws and remove the ion- volt generator charger assembly from the frame. 3) Remove the Plasma-ion charger from the High volt generator assembly.
  • Page 105 FILE NO. SVM-15058-1 Part name Work procedure Remarks Evaporator 1) Follow the procedure in item (Heat exchanger) 2) Remove 2 fixing screws at the left side of the end plate of the heat exchanger. Fixing screw 3) Remove 2 fixing screws on the right side of heat exchanger.
  • Page 106 FILE NO. SVM-15058-1 Part name Work procedure Remarks Fan motor 1) Follow the procedure 2) Remove 3 fixing screws, then remove Cover motor assembly. Fixing screw 3) Loosen the set screws of the transverse fan from the vent. Set screw 4) Remove 2 screws from the Motor- band (right) 5) Pull the motor band(right) and the Fan-...
  • Page 107 FILE NO. SVM-15058-1 Part name Work procedure Remarks 1) Follow to the procedure in the item Bearing Base bearing assembly 2) Remove 2 fixing screws from the Base bearing assembly, then remove Base bearing assembly from the main unit. <Caution at assembling> - If the bearing is out from the housing, Fixing screw push it into the specified position and then...
  • Page 108 FILE NO. SVM-15058-1 Part name Work procedure Remarks Cross flow fan <Caution at reassemblying> 1) To incorporate the Fan-motor incorporate Fan motor D Double point set the Motor into the position in the following shaft screw 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 5.0mm...
  • Page 109 FILE NO. SVM-15058-1 5. Outdoor unit Replacement part name Work procedure Remarks Common procedure 1. Detachment NOTE Upper cabinet Wear gloves for this job. Otherwise, you may injure your hands on the parts, etc. 1) Stop operation of the air conditioner, and Waterproof cover turn off the main switch of the breaker for air conditioner.
  • Page 110 FILE NO. SVM-15058-1 Replacement part name Work procedure Remarks Front cabinet 1. Detachment 1) Perform step 1 in 1. 2) Remove the fixing screws (ST1TØ4 × 10L 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST1TØ4 × 10L 4 pcs.) used to secure the front cabinet at the bottom, and the fixing screws (ST1TØ4 ×...
  • Page 111 FILE NO. SVM-15058-1 Replacement part name Work procedure Remarks 1) Perform work of item 1 in 1. Inverter assembly Inverter cover 2) Remove screw (ST1TØ4 × 10L 2 pcs.) of the upper part of the front cabinet. P.C. board • If removing the inverter cover in this (Soldered surface) condition, P.C.
  • Page 112 FILE NO. SVM-15058-1 Replacement part name Work procedure Remarks Control board assembly 1. Disconnect the leads and connectors connected to the other parts from the control board assembly. CN603 1) Leads CN601 • 3 leads (black, white, orange) connected to terminal block. CN700 CN602 CN300 •...
  • Page 113 FILE NO. SVM-15058-1 Replacement part name Work procedure Remarks Side cabinet Side cabinet (right) 1) Perform step 1 in 2 and all the steps in 3. 2) Remove the fixing screw (ST1TØ4 × 10L 4 pcs.) used for securing the side cabinet to the bottom plate and valve fixing panel.
  • Page 114 FILE NO. SVM-15058-1 Replacement part name Work procedure Remarks 1) Perform work of item 1 of 1 and 2, 3, 4, Compressor 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, and Compressor disconnect lead wire of the compressor from...
  • Page 115 FILE NO. SVM-15058-1 Replacement part name Work procedure Remarks Electronic expansion 1. Detachment valve coil 1) Perform step 1 in 2, all the steps in 3 and 1 in 5. Coil 2) Remove the coil by pulling it up from the anti-turn electronic control valve body.
  • Page 116 FILE NO. SVM-15058-1 Replacement part name Work procedure Remarks " TS sensor (Suction pipe temperature sensor) • Attachment Install the senser onto the straight pipe part of the suction pipe. Arrow D Be careful for the lead direction of the sensor. TD sensor (Discharge pipe temperature sensor) •...

  • Page 117: Exploded Views And Parts List

    FILE NO. SVM-15058-1 13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit 252 253 Electronic parts assembly. Location Part Location Part Description Description 43T00649 ASM-PANEL(R)-S 43039406 ASM-COV-MOTOR 43T00650 ASM-PANEL(L)-S 43T11331 PIPE-SHIELD 43005871 ASM-PANEL(AOLT) 43049799 HOLDER-PIPE 43T09506 ASM-AINL 43T62352 ASM-COVER-CONN 43T03394 ASM-BUSH-BODY(R) 43066040 HOLDER-REMOCON...
  • Page 118 13-2. Indoor Unit (E-Parts Assy) Location Part Location Part Description Description 43T50324 TEMPERATURE SENSOR 43T6V592 PC BOARD (RAS-10G2KCVP-T) 43T6V593 43T50320 TEMPERATURE SENSOR PC BOARD (RAS-13G2KCVP-T) TEMPERATURE SENSOR 43T6V594 43T50355 PC BOARD (RAS-18G2KCVP-T) CORD-CLAMP 43T60378 43T62340 TERMINAL 43T60417 TERMINAL PC BOARD ASSY;WRS-LED 43T6V469...
  • Page 119 FILE NO. SVM-15058-1 13-3. Outdoor Unit RAS-10G2ACVP-T RAS-13G2ACVP-T 24, 25 11, 13 10, 12 32 HOLDER SENSOR (TD) ; For PIPE OD 8.00 mm. 33 HOLDER SENSOR (TS) ; For PIPE OD 9.52 mm. Location Part Location Part Description Description 0001 43T00468 FRONT CABINET...
  • Page 120 FILE NO. SVM-15058-1 13-4. Outdoor Unit RAS-18G2ACVP-T 24, 25 11, 13 10, 12 32. HOLDER SENSOR (TD) ; For PIPE OD 8.00 mm. 33. HOLDER SENSOR (TS) ; For PIPE OD 12.7 mm. Location Part Location Part Description Description 0001 43T00468 FRONT CABINET 0016...
  • Page 121 FILE NO. SVM-15058 13-5. Outdoor Unit (Electrical Part) TS Sensor (Ø6) TO Sensor (Ø6) TD Sensor (Ø4) Location Part Location Part Description Description 0701 43T62320 HEATSINK 0704 43T60326 FUSE PC BOARD (RAS-10G2ACVP-T) 0702 43T6V589 0705 43T60377 TEMPERATURE SENSOR PC BOARD (RAS-13G2ACVP-T) 0702 43T6V590 0706...

This manual is also suitable for:

Ras-10g2kcvp-tRas-18g2acvp-tRas-18g2kcvp-tRas-10g2acvp-tRas-13g2acvp-t

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