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Toshiba RAS-4M23SAV-E Service Manual
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Toshiba RAS-4M23SAV-E Service Manual

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See also: Owner's Manual , Installation Manual
FILE NO. A06-014

SERVICE MANUAL

AIR-CONDITIONER
SPLIT TYPE
RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E
RAS-4M23SAV-E
RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E
RAS-4M23SACV-E
R410A
PRINTED IN JAPAN, Apr, 2007
ToMo

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  • Page 1: Service Manual

    FILE NO. A06-014 SERVICE MANUAL AIR-CONDITIONER SPLIT TYPE RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E RAS-4M23SAV-E RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E RAS-4M23SACV-E R410A PRINTED IN JAPAN, Apr, 2007 ToMo...

  • Page 2: Table Of Contents

    CONTENTS 1. SAFETY PRECAUTIONS ................3 2. SPECIFICATIONS..................5 3. REFRIGERANT R410A ................18 4. CONSTRUCTION VIEWS ................ 26 5. WIRING DIAGRAM .................. 28 6. SPECIFICATIONS OF ELECTRICAL PARTS ......... 30 7. REFRIGERANT CYCLE DIAGRAM ............31 8. CONTROL BLOCK DIAGRAM ..............36 9.

  • Page 3: Safety Precautions

    1. SAFETY PRECAUTIONS For general public use Power supply cord of outdoor unit shall be more than 1.5 mm² (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 • 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 RESISTORS, FURNACE, STOVES, ETC.

  • Page 5: Specifications

    The indoor and outdoor units that can be used in combination are shown in the tables below. Table of models that can be connected Type Outdoor unit Indoor unit RAS-B10SKVP–E RAS-B13SKVP–E RAS-B16SKVP–E RAS-M10SKV–E RAS-M13SKV–E RAS-M16SKV–E Heat pump RAS-4M23SAV-E RAS-M10GDV–E RAS-M13GDV–E RAS-M16GDV–E RAS-M10SMUV–E RAS-M13SMUV–E RAS-M16SMUV–E RAS-M10SKCVP–E RAS-M13SKCVP–E RAS-M16SKCVP–E RAS-M10SKCV–E RAS-M13SKCV–E RAS-M16SKCV–E...

  • Page 6: Heat Pump Models

    2-1. Specifications <Heat Pump Models> RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E / RAS-4M23SAV-E Indoor RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E Unit model Outdoor RAS-4M23SAV-E Cooling capacity (kW) Cooling capacity range (kW) 3.0 – 7.5 Heating capacity (kW) Heating capacity range (kW) 2.0 – 8.4 Power supply 220 –...
  • Page 7 <Cooling Only Models> RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E / RAS-4M23SACV-E Indoor RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E Unit model Outdoor RAS-4M23SACV-E Cooling capacity (kW) Cooling capacity range (kW) 3.0 – 7.5 Heating capacity (kW) — Heating capacity range (kW) — Power supply 220 – 240 V, 1 Ph, 50Hz / 220 V, 1 Ph, 60Hz Unit model RAS-M10SKCVP-E RAS-M13SKCVP-E...
  • Page 8 2-2. Specifications of Performance When Each Indoor Unit is Combined with Other Unit Outdoor Unit : RAS-4M23SAV-E <Cooling/220V> Power Indoor unit Unit capacity (kW) Cooling Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 3.80 –...
  • Page 9 Outdoor Unit : RAS-4M23SAV-E <Cooling/230V> Power Indoor unit Unit capacity (kW) Cooling Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 3.63 – – – – – – 3.52 (1.4 to 3.2) (320 to 950) (1.86 to 4.69)
  • Page 10 Outdoor Unit : RAS-4M23SAV-E <Cooling/240V> Power Indoor unit Unit capacity (kW) Cooling Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 3.48 – – – – – – 3.52 (1.4 to 3.2) (320 to 950) (1.78 to 4.50)
  • Page 11 Outdoor Unit : RAS-4M23SAV-E <Heating/220V> Power Indoor unit Unit capacity (kW) Heating Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 1120 5.53 – – – – – – 2.86 (1.4 to 4.5) (320 to 1850) (1.94 to 8.67)
  • Page 12 Outdoor Unit : RAS-4M23SAV-E <Heating/230V> Power Indoor unit Unit capacity (kW) Heating Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 1120 5.29 – – – – – – 2.86 (1.4 to 4.5) (320 to 1850) (1.86 to 8.29)
  • Page 13 Outdoor Unit : RAS-4M23SAV-E <Heating/240V> Power Indoor unit Unit capacity (kW) Heating Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 1120 5.07 – – – – – – 2.86 (1.4 to 4.5) (320 to 1850) (1.78 to 7.95)
  • Page 14 Outdoor Unit : RAS-4M23SACV-E <Cooling/220V> Power Indoor unit Unit capacity (kW) Cooling Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 3.80 – – – – – – 3.52 (1.4 to 3.2) (320 to 950) (1.94 to 4.91) 1340 6.62...
  • Page 15 Outdoor Unit : RAS-4M23SACV-E <Cooling/230V> Power Indoor unit Unit capacity (kW) Cooling Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 3.63 – – – – – – 3.52 (1.4 to 3.2) (320 to 950) (1.86 to 4.69) 1340 6.33...
  • Page 16 Outdoor Unit : RAS-4M23SACV-E <Cooling/240V> Power Indoor unit Unit capacity (kW) Cooling Power Operating Outdoor Operating supply capacity consumption current noise status (kW) (dB) 1 unit 3.48 – – – – – – 3.52 (1.4 to 3.2) (320 to 950) (1.78 to 4.50) 1340 6.07...

  • Page 17: Operation Characteristic Curve

    2-2-1. Operation Characteristic Curve <Cooling> <Heating> RAS-4M23SAV-E, RAS-4M23SACV-E RAS-4M23SAV-E 220V 220V • Conditions • Conditions Indoor : DB27˚C/WB19˚C Indoor : DB20˚C/WB15˚C Outdoor : DB35˚C/WB24˚C Outdoor : DB7˚C/WB6˚C Indoor air flow : High Indoor air flow : High Pipe length : 5m × 4 Pipe length : 5m ×...

  • Page 18: Refrigerant R410A

    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 is 1.6 times higher than conventional refrigerant...
  • Page 19 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 20 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 21 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. 3-2-2 Relations between flare nut and flare seal surface 2.
  • Page 22 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 23: Recharging Of Refrigerant

    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 24: Brazing Of Pipes

    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 25 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. • Due to a wide effective temperature range, flux is hard to carbonize.

  • Page 26: Construction Views

    4. CONSTRUCTION VIEWS 4-1. Indoor Unit RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E Plasma pure filter Front panel Indoor heat exchanger Air filter Knockout system Knockout system Remote controller holder 54.5 54.5 Installation plate hanging section Wireless remote controller Installation plate hanging section Drain hose (Outside length: 0.54m) Part of Remote controller...
  • Page 27 4-2. Outdoor Unit RAS-4M23SAV-E, RAS-4M23SACV-E – 27 –...

  • Page 28: Wiring Diagram

    5. WIRING DIAGRAM 5-1. Indoor Unit RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E (Heat pump models) RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E (Cooling only models) To outdoor unit Air Purifier Electrode High-voltage Power Supply Indoor Terminal Block Heat Exchanger GRN & YEL Heat Exchanger CN41 CN63 Sensor (RED) (YEL) CN42...

  • Page 29: Outdoor Unit

    5-2. Outdoor Unit RAS-4M23SAV-E, RAS-4M23SACV-E NOTE Color Identification IGBT : Insulated Gate Bipolar Transistor BLK : BLACK : Pulse Motor Valve WHI : WHITE BLU : BLUE : Discharge Temp. sensor Compressor BRW : BROWN TGa to TGd : Temp. sensor at A to D unit gas side RED : RED : Outdoor Temp.

  • Page 30: Specifications Of Electrical Parts

    Heat exchanger temp. sensor (TCJ-sensor) ( – ) 10kΩ at 25°C Louver motor MP24Z3N Output (Rated) 1W, 16 poles, DC12V 6-2. Outdoor Unit RAS-4M23SAV-E, RAS-4M23SACV-E Parts name Model name Rating SC coil (Noise filter) (L01), (L03) SC-15-06J-B AC 250V, 15A, 0.6mH...

  • Page 31: Refrigerant Cycle Diagram

    7. REFRIGERANT CYCLE DIAGRAM 7-1. Indoor Unit, Outdoor Unit RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E / RAS-4M23SAV-E Indoor unit Temp. measurement D room C room B room D room C room B room Evaporator Cross flow fan Per 1 unit Max. : 25m Min.
  • Page 32 RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E / RAS-4M23SACV-E Indoor unit Temp. measurement D room C room B room D room C room B room Evaporator Cross flow fan Per 1 unit Max. : 25m Min. : 2m Total Max. : 60m Connecting pipe Chargeless : 40m Thickness : 0.8mm Charge...

  • Page 33: Operation Data

    7-2. Operation Data Outdoor Unit : RAS-4M23SAV-E <Cooling> Temperature Operating combination Heat exchanger Indoor No. of Standard Compressor condition (Unit) pipe temp. Outdoor operating pressure revolution (Manual) units P (MPa) (rps) Indoor Outdoor T1 (°C) T2 (°C) 1 unit –...
  • Page 34 Outdoor Unit : RAS-4M23SAV-E <Heating> Temperature Operating combination Heat exchanger Indoor No. of Standard Compressor condition (Unit) pipe temp. Outdoor operating pressure revolution units P (MPa) (Manual) (rps) Indoor Outdoor T1 (°C) T2 (°C) 1 unit – – – 2.6 to 2.8...
  • Page 35 Outdoor Unit : RAS-4M23SACV-E <Cooling> Temperature Operating combination Heat exchanger Indoor No. of Standard Compressor condition (Unit) pipe temp. Outdoor operating pressure revolution units P (MPa) (Manual) (rps) Indoor Outdoor T1 (°C) T2 (°C) 1 unit – – – 0.8 to 1.0 13 to 15 45 to 47 High...

  • Page 36: Control Block Diagram

    8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E Indoor Unit Control Unit M.C.U. Louver Functions Motor Heat Exchanger Sensor (Tc) • Cold draft preventing Function Room Temperature Sensor (Ta) Louver Motor • 3-minute Delay at Restart for Compressor Drive Control Infrared Rays Signal Receiver •...
  • Page 37 RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E Indoor Unit Control Unit M.C.U. Louver Functions Motor Heat Exchanger Sensor (Tc) • 3-minute Delay at Restart for Compressor Room Temperature Sensor (Ta) Louver Motor Drive Control • Fan Motor Starting Control Infrared Rays Signal Receiver and Indication •...

  • Page 38: Outdoor Unit (Inverter Assembly)

    8-2. Outdoor Unit (Inverter Assembly) RAS-4M23SAV-E, RAS-4M23SACV-E Outdoor air Gas side Suction Evaporator Discharge pipe temp. Sensor temp. Sensor temp. Sensor temp. Sensor temp. Sensor MCC-818 (SUB-P.C. B) A unit P.M.V. M.C.U • Inverter outdoor frequency control B unit P.M.V.

  • Page 39: Operation Description

    9. OPERATION DESCRIPTION • Detection of inverter input current and current 9-1. Outline of Air Conditioner Control release operation This air conditioner is a capacity-variable type air • Over-current detection and prevention operation conditioner, which uses DC motor for the indoor fan to IGBT module (Compressor stop function) motor and the outdoor fan motor.
  • Page 40 9-2. Operation Description 9-2. 1. Basic operation ........................41 1. Operation control ....................... 41 2. Operating mode selection when performing 2-room operation ......... 42 3. Cooling/Heating operation ....................42 4. AUTO operation ......................... 43 5. DRY operation ........................43 2. Indoor fan motor control ......................44 <In cooling operation>...

  • Page 41: Basic Operation

    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 42: Operating Mode Selection When Performing 2-Room Operation

    Item Operation flow and applicable data, etc. Description 1. Basic 2. Operating mode selection when performing 2-room operation operation 1) The outdoor unit operating mode conforms to the instructions of the indoor unit that was pressed first. 2) When combined operation consisting of cooling (dry) and heating, fan (air purification) and heating, or cleaning operation and heating is performed, operation conforms to the instructions of the indoor unit that was pressed first as shown in the following table.

  • Page 43: Auto Operation

    Item Operation flow and applicable data, etc. Description 1. Basic 4. AUTO operation 1) Detects the room temperature (Ta) when operation the operation started. 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 44: Indoor Fan Motor Control

    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 45: In Heating Operation> (Heat Pump Model)

    Item Operation flow and applicable data, etc. Description 2. Indoor fan <In heating operation> (Heat pump model) 1) When setting the fan speed to L, motor control L+, M, M+ or H on the remote controller, the operation is per- formed with the constant speed HEAT ON shown in Fig.

  • Page 46: Outdoor Fan Motor Control

    Zone B: Maintained at the current revolutions. 29˚C Zone C: Decreased by 50 rpm every 20 seconds (to the MIN revolutions). Zone C : RAS-4M23SAV-E, RAS-4M23SACV-E Compressor revolution (rps) Zone M : Fan revolution Min. Max. Min. Max. Min. Max. Min. Max.

  • Page 47: Heating Operation

    (to the MIN revolutions). 18˚C Zone D: Maintained at the current revolutions. Zone D : 15˚C Zone E: Increased by 50 rpm every 20 seconds Zone E : (to the MAX revolutions). RAS-4M23SAV-E Compressor revolution (rps) Fan revolution Min. Max. Min. Max. Min.

  • Page 48: Current Release Control

    Item Operation flow and applicable data, etc. Description 5. Current release This function prevents troubles on the electronic parts 1) The input current of the outdoor unit control of the compressor driving inverter. is detected in the inverter section of the outdoor unit.

  • Page 49: Winding/Coil Heating Control

    Item Operation flow and applicable data, etc. Description 7. Winding/Coil When the outdoor temperature is low, the windings/ Winding/Coil heating is performed when heating control coils are heated to ensure compressor reliability. the following conditions are met. Condition 1 : When the discharge sensor temperature (Td) is less than 30°C.

  • Page 50: Louver Control

    Item Operation flow and applicable data, etc. Description 9. Louver control This function controls the air direction of the indoor unit. 1) Louver • The position is automatically controlled according to the operation mode (COOL/HEAT). position • 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 51: Sleep Mode Operation

    Item Operation flow and applicable data, etc. Description 10. SLEEP When pushing [SLEEP MODE] button on the remote controller, a MODE quiet and mild operation is performed by reducing the fan speed operation and the compressor speed. <Cooling operation> This function operates the air conditioner with the difference between the set and the room temperature (Tsc and Ta) as shown in the following figure.

  • Page 52: Temporary Operation

    Item Operation flow and applicable data, etc. Description 11. Temporary Pressing [RESET] button starts the temporary 1) When pressing [RESET] button, the operation operation of [AUTO] operation. When keeping [RE- temporary [AUTO] operation starts. SET] button pressed for 10 seconds or more, the 2) When keeping [RESET] button pressed temporary [COOL] operation is performed.

  • Page 53: Air Purifying Control [Detection Of Abnormality]

    Item Operation flow and applicable data, etc. Description 12. Air purifying control [Detection of abnormality] 1. Purpose The air purifying control function is to Air purifying operation alert the user to trouble in the ionizing or air purifying operation. 2. Description PURE lamp ON Trouble is determined to have occurred (indicated by the FILTER indicator) in the...

  • Page 54: Pulse Motor Valve (Pmv) Control

    Item Operation flow and applicable data, etc. Description 14. Pulse motor This function controls throttle amount of the 1) When starting the operation, move the valve (PMV) refrigerant in the refrigerating cycle. valve once until it fits to the stopper. control (Initialize) According to operating status of the air conditioner,...

  • Page 55: Clean Operation

    Item Operation flow and applicable data, etc. Description 15. Clean 1. Purpose operation The clean 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 Clean operation When the cooling or dry operation shuts down, the...

  • Page 56: Clean Operation Cancel

    Item Operation flow and applicable data, etc. Description 16. Clean operation Setting the clean operation cancel NOTE: cancel Once J201 is added, the [RESET] button on the unit is designated for Add J201 of the indoor P.C. board assembly. CLEAN OPERATION (Set/Cancel), * This cancels the auto restart function.

  • Page 57: Select Switch On Remote Controller

    Item Operation flow and applicable data, etc. Description 17. Select switch on 1. Purpose remote controller This operation is to operate only one indoor unit using one remote controller. 2. Description Push the operation button When operating one indoor unit in a on the remote controller.

  • Page 58: Set Temp. Correction

    Item Operation flow and applicable data, etc. Description 18. Set temp. <Indoor control P.C. board (At shipment)> 1. Purpose correction When the difference between the set temp. of the remote controller and the room temp. is wide due to the installation condition, etc, the set temp.

  • Page 59: Auto Restart Function

    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. This function is not set to work when shipped from the factory.

  • Page 60: How To Cancel The Auto Restart Function

    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 61: Remote Controller And Its Fuctions

    9-5. Remote Controller and Its Fuctions 9-5-1. Parts Name of Remote Controller High power button (Hi POWER) Infrared signal transmitter Transmits signals to the indoor unit. Push this button to start high power operation. button Memory button (MEMO) Push this button to ready for storing the settings. Push the button to start operation.

  • Page 62: Name And Functions Of Indications On Remote Controller

    9-5-2. Name and Functions of Indications on Remote Controller [Display] All indications, except for the clock time indicator, are displayed by pushing the button. Transmission mark TIMER and clock time indicator This transmission mark indicates when the remote The time setting for timer operation or the clock time controller transmits signals to the indoor unit.

  • Page 63: Hi-Power Mode

    9-6. Hi POWER Mode ([Hi POWER] button on the remote controller is pressed) When [Hi POWER] button is pressed while the indoor unit is in Auto, Cooling or Heating operation, Hi POWER mark is indicated on the display of the remote controller and the unit operates as follows. 1.

  • Page 64: Installation Procedure

    10. INSTALLATION PROCEDURE 10-1. Safety Cautions For the rear left and left piping Hook 47 mm or more 1 Installation plate Wall Hook 140 mm or more Insert the cushion between 74 mm the indoor unit and wall, and or more tilt the indoor unit for better installation work.
  • Page 65 10-2. Optional Parts, Accessories and Tools 10-2-1. Optional Installation Parts Part Code Parts name Q’ty Refrigerant piping Indoor unit name Liquid side (Outer diameter) Gas side (Outer diameter) 1 ea. RAS-B10SKVP-E, B13SKVP-E 6.35 mm 9.52 mm RAS-M10SKCVP-E, M13SKCVP-E RAS-B16SKVP-E, M16SKCVP-E 6.35 mm 12.7 mm Shield pipe (for extension drain hose) (polyethylene foam, 6 mm thick)
  • Page 66 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 acciden- tally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch) •...
  • Page 67 10-3. Indoor Unit 10-3-2. Drilling and Mounting Installation Plate 10-3-1. Installation Location • A place which provides enough spaces around Drilling the indoor unit as shown in the diagram. When install the refrigerant pipes from the rear. • A place where there are no obstacles near the air inlet and outlet.
  • Page 68 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. Prepare a power source for the exclusive use of screws with the upper and lower catches.
  • Page 69 10-3-5. Piping and Drain Hose Installation Terminal cover Piping and drain hose forming Screw • Since condensation results in machine trouble, make sure to insulate both the connecting pipes Screw Terminal block separately. (Use polyethylene foam as insulating material.) Earth wire Rear right Rear left Bottom left...
  • Page 70 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 71 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 72 10-4. Outdoor Unit CAUTION 10-4-1. Accessory and Installation Parts 1. Install the outdoor unit without anything blocking the air discharging. 2. When the outdoor unit is installed in a place exposed always to a strong wind like a coast or on a high story of a building, secure the normal fan operation using a duct or a wind Outdoor unit installation manual ×...
  • Page 73 10-4-5. Refrigerant Piping Connection • Flaring size : A (Unit : mm) CAUTION Fig. 10-4-4 KEEP IMPORTANT 4 POINTS FOR PIPING WORK - 0.4 Outer dia. of copper pipe 1. Keep dust and moisture from entering the R410A pipes. 6.35 2.
  • Page 74 1. Piping connections to the outdoor unit should be 7. When doing installation work on level ground, it arranged in the sequence A, B, C, D starting is usual to wiring and piping connections to the from the bottom. indoor units. And/then make to the outdoor unit. (For each piping connection, the gas pipe is on However if outdoor work is difficult it is possible the bottom and the liquid pipe is on the top.)
  • Page 75 • Tightening torque of flare pipe 10-4-7. Evacuating The pressure of R410A is higher than R22. After the piping has been connected to all indoor (Approx. 1.6 times) Therefore securely tighten the unit(s), you can perform the air purge together at once. flare pipes which connect the outdoor unit and indoor unit with the specified tightening torque AIR PURGE...
  • Page 76 Packed valve handling precautions Wiring connection 1. Remove the side panel and cord clamp from the • Open the valve stem all the way out ; do not try to outdoor unit. open it beyond the stopper. 2. Connect the connecting cable to the terminal as •...
  • Page 77 10-4-9. Check and Test Operation 10-4-10. Miswiring (Mispiping) Check Make sure that the wiring and piping for each room For R410A, use the leak detector exclusively have the same alphabetical codes (A, B, C, D). manufactured for HFC refrigerant (R410A, Connect and secure the power cord.
  • Page 78 Miswiring (mispiping) check by LED Indication • For this outdoor unit, the self-miswiring (mispiping) check is possible by using five LEDs (1 Yellow + 4 Red). * LEDs (D800 to D804) locate on the sub-control board underneath of the inverter. D800 D801 D802 D803 D804 Description Normal operation (no error)

  • Page 79: Installation/Servicing Tools

    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 acciden- tally, a service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch) •...

  • Page 80: How To Diagnose The Trouble

    11. HOW TO DIAGNOSE THE TROUBLE The pulse modulating 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 Page...
  • Page 81 11-1. First Confirmation 11-1-3. Operation Which is not a Trouble (Program Operation) 11-1-1. Confirmation of Power Supply For controlling the air conditioner, the program Confirm that the power breaker operates (ON) operations are built in the microcomputer as de- normally. scribed in the following table.
  • Page 82 11-3. Self-Diagnosis by Remote Controller (Check Code) 1. If the lamps are indicated as shown B to E in Table 11-3-1, 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 condi- tion and indicates the information of the self-diagnosis on the display of the remote controller with the check codes.
  • Page 83 11-3-2. Caution at Servicing 1. After servicing, push the START/STOP button to return to the normal mode. 2. After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status. However, the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory.
  • Page 84 Block distinction Operation of diagnosis function Judgment and action Check Check Block Cause of operation conditioner Remarks code code status Outdoor P.C. Inverter over-current All off Displayed when Even if trying operation again, all board protective circuit error is detected. operations stop immediately.

  • Page 85: Judgment Of Trouble By Every Symptom

    11-4. Judgment of Trouble by Every Symptom 11-4-1. Indoor Unit (Including Remote Controller) (1) Power is not turned on (Does not operate entirely) <Primary check> 1. Is the supply voltage normal? 2. Is the normal voltage provided to the outdoor unit? Operation 3.
  • Page 86 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 supply once, and...
  • Page 87 (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 88 (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. The unit does not beep at all. Push the START/STOP button. Operation lamp on indoor unit is not indicated.
  • Page 89 11-4-2. Wiring Failure (Interconnecting and Serial Signal Wire) (1) Outdoor unit does not operate ‚ ƒ 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 following diagram.
  • Page 90 11-5. 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 91 11-6. Trouble Diagnosis by Outdoor LED For the outdoor unit, the self-diagnosis is possible by LED (Yel) and four LEDs (Red). • LED (Yel) (D800) and LEDs (Red) (D801 to D804) are D800 D801 D802 D803 D804 provided on the sub-control board under surface of the inverter, and as shown below, they are checked from the wiring port when removing the wiring cover.

  • Page 92: Troubleshooting

    11-7. Troubleshooting 11-7-1. How to Check Whether the Air Purifier is Good or Not Turn off the power breaker once, and turn on again after 10 seconds. Does the OPERATION indicator flash? To item “Power supply is not turned on” Turn off the power breaker and remove CN41 (Micro switch connector).

  • Page 93: How To Diagnose Trouble In Outdoor Unit

    11-8. How to Diagnose Trouble in Outdoor Unit 11-8-1. Summarized Inner Diagnosis of Inverter Assembly Table 11-8-1 Diagnosis/Process flowchart Item Contents Summary Preparation Turn “OFF” the power supply breaker, and remove 3P connector which connects Remove inverter and compressor. connector of compressor.

  • Page 94: How To Check Simply The Main Parts

    Diagnosis/Process flowchart Item Contents Summary Check Check winding resistance between phases of compres- sor, and resistance between outdoor frames by using a tester. Check → OK if 10MΩ or more • Is not grounded. winding of compressor.  → OK if 0.2Ω (under 20°C) •...
  • Page 95 (3) Check procedures Table 11-9-1 Procedure Check points Causes Turn off the power supply breaker Check whether or not the fuse (F01) Impulse voltage was applied or the and remove the P.C. board is blown. indoor fan motor short-circuited. assembly from electronic parts base.
  • Page 96 11-9-2. P.C. Board Layout +12V [1] Sensor characteristic table TD : Discharge temp. sensor TA : Room temp. sensor TC : Heat exchanger temp. sensor TO : Outdoor temp. sensor TE : Outdoor heat exchanger temp. sensor TS : Suction temp. sensor TGa : A room Gas side temp.
  • Page 97 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) sensor (Normal temp.) Heat exchanger (TCJ) sensor Temperature 10°C 20°C 25°C 30°C 40°C Sensor TA, TC, TCJ (kΩ) 20.7 12.6...
  • Page 98 11-9-5. Checking Method for Each Part Part name Checking procedure Electrolytic capacitor 1. Turn OFF the power supply breaker. (For raising pressure, 2. Discharge all three capacitors completely. smoothing) 3. Check that safety valve at the bottom of capacitor is not broken. 4.
  • Page 99 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

    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. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities.
  • Page 101 Part name Procedures Remarks Front panel 4) Push “PUSH” part under the front panel and remove hooks of the front panel from the installation plate. Installation plate Pull here Pull here Front panel Push here Push here Push here Push here Push 5) Remove the front panel fixing screws.
  • Page 102 Part name Procedures Remarks High voltage 1) Follow to the procedure in the item generator 2) Disconnect the connectors of the high-voltage generator, and disconnect the four leads from where they are fitted into the other components. Screw Screw 3) Remove the fixing screw which secures the high voltage generator, and remove the High voltage High voltage...
  • Page 103 Part name Procedures Remarks Electric parts 1) Follow the procedure up to 4) in above. TCJ sensor box assembly 2) Remove screw of earth lead attached to the end plate of the evaporator. 3) Remove the lead wire cover, and remove Lead wire cover Lead wire cover connector (5P) for the fan motor and...
  • Page 104 Part name Procedures Remarks Horizontal louver 1) Remove shaft of the horizontal louver from the back body. (First remove the left shaft, and then remove other shafts while sliding the horizontal louver leftward.) Slide the horizontal Slide the horizontal louver leftward louver leftward Evaporator 1) Follow to the procedure in the item...
  • Page 105 Part name Procedures Remarks Bearing 1) Follow to the procedure in the items 2) Remove the two fixing screws used to secure the left edge panel of the heat exchanger, and Screw remove the two screws used to secure the Bearing bearing base.
  • Page 106 Part name Procedures Remarks Fan motor 1) Follow to the procedure in the item 2) Loosen the set screw of the cross flow fan. 3) Remove two fixing screws of the motor band (Right), and then remove the motor band (Right). 4) Pull the fan motor outward.
  • Page 107 Part name Procedures Remarks Cross flow fan <Caution at reassembling> 1) At assembling work of the bearing base, check that the drain pipe is surely incorpo- rated in the back body. (Otherwise, water leak is caused.) 2) To incorporate the fan motor, remove the fan motor rubber (at shaft core side), incorporate the motor into the position in the following figure, and then install the fan motor.
  • Page 108 12-2. Microcomputer Part name Procedure Remarks Common procedure 1) Turn the power supply off to stop the Replace terminal block, operation of air-conditioner. microcomputer ass’y and the P .C. board ass’y. 2) Remove the front panel. • Remove the 2 fixing screws. 3) Remove the electrical part base.
  • Page 109 12-3. Outdoor Unit Part name Procedure Remarks Common 1. Detachment procedure 1) Stop operation of the air conditioner, and turn “OFF” the power breaker. Air outlet panel Upper panel 2) Remove the side panel. (Ø4 × 10L 3 pcs.) Back panel guard 3) Remove the cord clamp.
  • Page 110 Part name Procedure Remarks Control 1. Disconnect lead wires and connectors connected from the control board assembly to other parts. board assembly 1) Lead wires • Connection with terminal block : 7 wires (Red, Orange, Pink, Yellow, Black and two White CN601~ CN608 wires)
  • Page 111 Part name Procedure Remarks Fan motor 1) Perform work from item 1) to 5), 7) of 2) Remove the flange nut fixing the fan motor and the propeller fan. • Flange nut is loosened by turning clockwise. (To tighten the flange nut, turn counterclock-wise.) 3) Remove the propeller fan.
  • Page 112 Part name Procedure Remarks Pulse motor 1. Detachment valve coil Positioning bracket 1) Perform work of item at coil side PMV coil 2) Release the coil from the notch by turning it, Lead wire and remove coil from the pulse motor valve. take-out port 2.
  • Page 113 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 parts of sensor TO,...
  • Page 114 <MCC-1438> – 114 –...
  • Page 115 <MCC-818> – 115 –...

  • Page 116: Exploded Views And Parts List

    13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E RAS-M10SKCVP-E, RAS-M13SKCVP-E, RAS-M16SKCVP-E 216 213 225, 226 218, 219 221, 222, 224 ∗ The parts in the following parts list are conformed to RoHS. Therefore be sure to use the following parts for repairing and replacing. Location Part Location...
  • Page 117 407, 408, 409 ∗ The parts in the following parts list are conformed to RoHS. Therefore be sure to use the following parts for repairing and replacing. Location Part Location Part Description Description 4306A132 Terminal Block, 3P 4306S937 P .C. Board Ass’y (B10SKVP-E, B10SKCVP-E) 43062263 Cover, E-Parts...
  • Page 118 13-2. Outdoor Unit RAS-4M23SAV-E, RAS-4M23SACV-E 31, 32 33, 34 37 38 35, 36 16, 28, 30 17, 29, 30 18, 21, 24 19, 22, 25 49 48 9 45 – 118 –...
  • Page 119 Holder, Sensor, TE 43047686 Nut, Flare, 3/8 IN (4M23SAV-E) 43047680 Cap, Valve, Packed, 9.52 43032441 Nipple, Drain (4M23SAV-E) 43047659 Cap, Valve, Packed, 12.7 4301P703 Mark, TOSHIBA 43047674 Cap, Charge, Port 4301P729 Mark, Inverter 43046449 Body, PMV, UKV-18D064, R410A, RoHS – 119 –...
  • Page 120 13-3. P.C. Board Layout RA-4M23SAV-E, RAS-4M23SACV-E 4M23SACV-E 4M23SAV-E TGa Sensor TO Sensor TGb Sensor TE Sensor 4M23SACV-E TGc Sensor TS Sensor Nothing TGd Sensor TD Sensor ∗ The parts in the following parts list are conformed to RoHS. Therefore be sure to use the following parts for repairing and replacing. Location Part Location...
  • Page 121 TOSHIBA CARRIER CORPORATION 2 CHOME 12-32, KONAN, MINATOKU, TOKYO, 108-0075, JAPAN Copyright © 1999 to 2007 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

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