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Toshiba RAS-B10EKVP-E Service Manual
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Toshiba RAS-B10EKVP-E Service Manual

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FILE NO. A04-015

SERVICE MANUAL

AIR-CONDITIONER
SPLIT TYPE
RAS-B10EKVP-E, RAS-B13EKVP-E
/RAS-M14EAV-E
RAS-M10EKCVP-E, RAS-M13EKCVP-E
/RAS-M14EACV-E
RAS-B10EKVP-E, RAS-B13EKVP-E,
RAS-B16EKVP-E/RAS-M18EAV-E
RAS-M10EKCVP-E, RAS-M13EKCVP-E,
RAS-M16EKCVP-E/RAS-M18EACV-E

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Summary of Contents for Toshiba RAS-B10EKVP-E

  • Page 1: Service Manual

    FILE NO. A04-015 SERVICE MANUAL AIR-CONDITIONER SPLIT TYPE RAS-B10EKVP-E, RAS-B13EKVP-E /RAS-M14EAV-E RAS-M10EKCVP-E, RAS-M13EKCVP-E /RAS-M14EACV-E RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-E/RAS-M18EAV-E RAS-M10EKCVP-E, RAS-M13EKCVP-E, RAS-M16EKCVP-E/RAS-M18EACV-E...

  • Page 2: Table Of Contents

    CONTENTS 1. SAFETY PRECAUTIONS ................3 2. SPECIFICATIONS ..................5 3. REFRIGERANT R410A ................12 4. CONSTRUCTION VIEWS ................. 20 5. WIRING DIAGRAM ..................22 6. SPECIFICATIONS OF ELECTRICAL PARTS .......... 24 7. REFRIGERANT CYCLE DIAGRAM ............26 8. CONTROL BLOCK DIAGRAM ..............31 9.

  • Page 3: Safety Precautions

    1. SAFETY PRECAUTIONS For general public use Power supply cord of outdoor unit shall be more than 1.5 mm (H07RN-F or 245IEC66) 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 WARNING • Never modify this unit by removing any of the safety guards or by-pass any of the safety interlock switches. • Do not install in a place which cannot bear the weight of the unit. Personal injury and property damage can result if the unit falls.

  • Page 5: Specifications

    2. 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-B10EKVP–E RAS-B13EKVP–E RAS-M14EAV–E RAS-M10UKV–E3 RAS-M13UKV–E3 RAS-M10YDV–E RAS-M13YDV–E Heat pump RAS-B10EKVP–E RAS-B13EKVP–E RAS-B16EKVP–E...

  • Page 6: Heat Pump Models

    2-1-1 Specifications Heat pump models Unit model Indoor RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-E Outdoor RAS-M14EAV-E RAS-M18EAV-E Cooling Capacity (kW) Cooling Capacity range (kW) 1.4 - 4.5 1.4 - 6.2 Heating Capacity (kW) Heating Capacity range (kW) 0.9 - 5.2 0.9 - 8.5 Power supply 220~240V-1Ph-50Hz / 220V-1Ph-60Hz Electric...
  • Page 7 2-1-2 Specifications Cooling-only models Unit model Indoor RAS-M10EKCVP-E, RAS-M13EKCVP-E, RAS-M16EKCVP-E Outdoor RAS-M14EACV-E RAS-M18EACV-E Cooling Capacity (kW) Cooling Capacity range (kW) 1.4 - 4.5 1.4 - 6.2 Heating Capacity (kW) – – Heating Capacity range (kW) – – Power supply 220~240V-1Ph-50Hz / 220V-1Ph-60Hz Electric Indoor Unit model...
  • Page 8 2-2 Performance specifications combinations of indoor unit <Cooling> RAS-M14EAV-E, RAS-M14EACV-E Volts Operating indoor unit Unit capacity (kW) Capacity (kW) Running current Power Consumption Operation Operation Mode Status – – 2.5 (1.1 to 3.2) 3.05 (1.10 to 4.30) 570 (170 to 880) 1 unit –...
  • Page 9 <Cooling> RAS-M18EAV-E , RAS-M18EACV-E Volts Operating indoor unit Unit capacity (kW) Capacity (kW) Running current Power Consumption Operation Operation mode Status – – 2.7 (1.1 to 3.2) 3.03 (1.43 to 3.83) 600 (220 to 800) 1 unit – – 3.7 (1.1 to 4.2) 5.10 (1.43 to 6.49) 1100 (220 to 1400) –...
  • Page 10 2-2-1. Operation Characteristic Curve <Cooling> RAS-M14EAV-E, RAS-M14EACV-E <Heating> RAS-M14EAV-E • Conditions Indoor : DB 20˚C Outdoor : DB 7˚C/WB 6˚C Air flow : High Pipe length : 7.5m x 2 2 units operating 230V • Conditions Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C Air flow : High Pipe length : 7.5m x 2...
  • Page 11 2-2-3. Operation Characteristic Curve <Cooling> RAS-M18EAV-E, RAS-M18EACV-E <Heating> RAS-M18EAV-E • Conditions Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C Air flow : High Pipe length : 7.5m x 2 2 units operating 230V • Conditions Indoor : DB 20˚C Outdoor : DB 7˚C/WB 6˚C Air flow : High Pipe length : 7.5m x 2...

  • Page 12: 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 is even when refrigerant leaks, its concentration 1.6 times higher than conventional refrigerant (R22).
  • Page 13 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 b) Socket Joints For copper pipes, flare joints or socket joints are Socket joints are such that they are brazed used.
  • Page 14 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 15 Table 3-2-6 Flare and flare nut dimensions for R22 Outer Dimension (mm) Flare nut Nominal Thickness diameter 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) Flare Connecting Procedures and Precautions When it is strong, the flare nut may crack and may be made non-removable.
  • Page 16 3-3. Tools 3-3-1. Required Tools The service port diameter of packed valve of the outdoor unit in the air conditioner 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. The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.

  • Page 17: 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 18: 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 19 (2) Characteristics required for flux 3-5-3. 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 20: Construction Views

    4. CONSTRUCTION VIEWS 4-1. Indoor Unit RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E Parts WH-H03JE name of (Heat pump remote model) control WC-H03JE (Cooling-only model) – 20 –...
  • Page 21 4-2. Outdoor Unit RAS-M14EAV-E, RAS-M18EAV-E (Heat pump models) RAS-M14EACV-E, RAS-M18EACV-E (Cooling-only models) – 21 –...

  • Page 22: Wiring Diagram

    5. WIRING DIAGRAM 5-1. Indoor Unit RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-E (Heat pump models) RAS-M10EKCVP, RAS-M13EKCVP-E, RAS-M16EKCVP-E (Cooling-only models) POWER SUPPLY CIRCUIT Air purifier Electrode High-voltage Power supply Color Identification WHITE BLACK BLUE BROWN ORANGE Wireless Unit Assembly PURPUL YELLOW GRAY PINK GRN&...
  • Page 23 5-2. Outdoor Unit RAS-M14EAV-E, RAS-M18EAV-E (Heat pump models) RAS-M14EACV-E, RAS-M18EACV-E (Cooling-only models) – 23 –...

  • Page 24: Specifications Of Electrical Parts

    6. SPECIFICATIONS OF ELECTRICAL PARTS 6-1. Indoor Unit RAS-B16EKVP-E, RAS-B13EKVP-E, RAS-B10EKVP-E RAS-M16EKCVP-E, RAS-M13EKCVP-E, RAS-M10EKCVP-E Parts name Type Specifications Fan motor (for indoor) MF-280-30-5 DC280–340V, 30W Room temp. sensor ( – ) 10kΩ at 25°C (TA-sensor) Heat exchanger temp. sensor ( – ) 10kΩ...

  • Page 25: Outdoor Unit

    6-2. Outdoor Unit RAS-M14EAV-E, RAS-M14EACV-E, RAS-M18EAV-E, RAS-M18EACV-E Parts name Model name Rating SC coil (Noise filter) (L03) ADR2520-R15TB or SC-20-01J-A AC 250V, 20A, 0.15mH SC coil (Noise filter) (L01) ADR25H-200R8TB AC 250V, 20A, 0.88mH DC-DC transformer SWT-72 or SWT-83 Primary side DC 280VSecondary side: 7.5V x 1, 13V x 126.5V x 3, 16V x 1, 15V x 1 Outside fan motor ICF-140-43-4...

  • Page 26: Refrigerant Cycle Diagram

    7. REFRIGERANT CYCLE DIAGRAM 7-1. Refrigerant Cycle Diagram RAS-B13EKVP-E, RAS-B10EKVP-E RAS-M14EAV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Per 1 unit Max.: 20m Indoor fan Total: 30m Chargeless Deoxidized copper pipe Pressure measurement = 20m Both A and B rooms Charge Gauge attaching port...
  • Page 27 RAS-M13EKCVP-E, RAS-M10EKCVP-E RAS- M14EACV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Per 1 unit Max.: 20m Indoor fan Total: 30m Chargeless Deoxidized copper pipe Pressure measurement = 20m Both A and B rooms Charge Gauge attaching port Outer dia.
  • Page 28 RAS-B16EKVP-E, RAS-B13EKVP-E, RAS-B10KVP-E RAS-M18EAV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Per 1 unit Max.: 20m Indoor fan Total: 30m Chargeless Deoxidized copper pipe Pressure measurement = 20m Both A and B rooms Charge Gauge attaching port Outer dia.
  • Page 29 RAS-M16EKCVP-E, RAS-M13EKCVP-E, RAS-M10EKCVP-E RAS-M18EACV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Per 1 unit Max.: 20m Indoor fan Total: 30m Chargeless Deoxidized copper pipe Pressure measurement = 20m Both A and B rooms Charge Gauge attaching port Outer dia.

  • Page 30: Operation Data

    7-2. Operation Data <Cooling> RAS-M14EAV-E, RAS-M14EACV-E Temperature No.of Operating combination Heat exchanger Standard Out- compressor condition operating (Unit) pipe temp. pressure P door door revolution units (Mpa) (rps) indoor outdoor T1 (°C) T2 (°C) 0.7 to 0.9 11 to 13 43 to 45 High 700rpm...

  • Page 31: Control Block Diagram

    8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-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 32 RAS-M10EKCVP-E, RAS-M13EKCVP-E, RAS-M16EKCVP-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 • Fan Motor Starting Control Drive Control Infrared Rays Signal Receiver • Processing and Indication Indoor Fan (Temperature Processing) Motor Control...
  • Page 33 CONTROL BLOK DIAGRAM (Outdoor unit) 220–240 V ~50Hz 220 V ~60Hz MCC-5015 (SUB P.C.B) MCC-5009 (SUB P.C.B) Current Unit A Unit B M.C.U detect send/receive send/receive circuit circuit • PWM synthesis function Current • Input current release control detect • IGBT over-current detect control Gas side pipe temp.

  • Page 34: 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 35 9-2. Operation Description Contents Page Basic operation ................... 36 1) Operation control ....................36 2) Operating mode selection ................... 37 3) Cooling/Heating operation .................. 37 4) AUTO operation ....................38 5) DRY operation ....................38 Indoor fan motor control ..............39 <In cooling operation>...

  • Page 36: Basic Operation

    Item Operation flow and applicable data, etc. Description 1. Basic 1) Operation control 1) The operation conditions are operation selected by the remote controller as Receiving the user’s operation condition setup, the opera- shown in the left. tion statuses of indoor/outdoor units are controlled. 2) A signal is sent by ON button of the Remote controller remote controller.

  • Page 37: Operating Mode Selection

    Item Operation flow and applicable data, etc. Description 1. Basic 2) Operating mode selection when performing 2-room 1) The outdoor unit operating mode operation operation conforms to the instructions of the indoor unit that was pressed first. Actual indoor unit Actual outdoor 2) When combined operation consist- Indoor unit...

  • Page 38: Auto Operation

    Item Operation flow and applicable data, etc. Description 1. Basic operation 4) AUTO operation 1) Detects the room temperature (Ta) when the operation started. Selection of operation mode 2) Selects an operation mode from As shown in the following figure, the operation starts by Ta in the left figure.

  • Page 39: 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 : Ultra High The indoor fan (cross flow fan) is operated by the phase- : High control induction motor.

  • Page 40: In Heating Operation

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

  • Page 41: Outdoor Fan Motor Control

    Item Operation flow and applicable data, etc. Description 3. Outdoor fan The blowing air volume at the outdoor unit side is con- 1) The operation command sent motor control trolled. from the remote controller is processed by the indoor unit Receiving the operation command from the controller of controller and transferred to the indoor unit, the controller of outdoor unit controls fan speed.
  • Page 42 Item Operation flow and applicable data, etc. Description Heating operation 1) Operation is performed at the MAX revolutions shown in the Zone A: Zone A: The fan revolutions are left tables for 3 minutes after decreased by 100 rpm compressor operation starts and every 20 seconds (to the for 1 minute after defrosting MIN revolutions).

  • Page 43: Capacity Control

    Item Operation flow and applicable data, etc. Description 4. Capacity 1) Indoor unit A and Indoor unit B Outdoor unit control determine the respective instruction revolutions from the Indoor Unit A difference between the remote verter Compressor controller setting temperature Indoor Unit A (Ts) and the indoor temperature (Ta), and transmit this to the...

  • Page 44: Release Protective Control

    Item Operation flow and applicable data, etc. Description 6. Release <In cooling/dry operation> 1) When temperature of the indoor protective (Prevent-freezing control for indoor heat exchanger) heat exchanger drops below control by 5°C, the compressor speed is In cooling/dry operation, the sensor of indoor heat ex- temperature of reduced.

  • Page 45: Winding/Coil Heating Control

    Item Operation flow and applicable data, etc. Description 7. Winding/Coil When the outdoor temperature is low, the windings/coils Winding/Coil heating is performed heating control are heated to ensure compressor reliability. when the following conditions are met. Condition 1 : Outdoor temperature To Winding/Coil When the discharge sensor tempera- heating amount...

  • Page 46: 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 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 opera- tion is performed.

  • Page 47: Eco Operation

    Item Operation flow and applicable data, etc. Description 10. ECO When pushing [ECO] button on the remote controller, a quiet operation and mild operation is performed by reducing the fan speed and the compressor speed. <Cooling operation> <Cooling operation> This function operates the air conditioner with the difference 1) The room temperature (Tao) at between the set and the room temperature as shown in the the start time of DRY operation...

  • Page 48: Temporary Operation

    Item Operation flow and applicable data, etc. Description 11. Temporary Pushing [RESET] button starts the temporary operation 1) When pushing [RESET] button, the operation of [AUTO] operation. When keeping [RESET] button temporary [AUTO] operation starts. pushed for 10 seconds or more, the temporary [COOL] 2) When keeping [RESET] button pushed operation is performed.

  • Page 49: Air Purifying Control

    Item Operation flow and applicable data, etc. Description 12. Air This function generates nagative ion while cleaning the Operation button purifying air in the room. Present control PURE button Air conditioner If air purifier-ON signal is received while the air condi- status tioner stops, the air purifier starts operation, and if it is Stop...

  • Page 50: Air Purifying Control [Detection Of Abnormality]

    Item Operation flow and applicable data, etc. Description 1. Purpose 12. Air The air purifying control function is to alert purifying Purifying operation the user to trouble in the ionizing or air control purifying operation. [Detection of abnor- 2. Description Total mality] operation time...

  • Page 51: Pulse Motor Valve (Pmv) Control

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

  • Page 52: Clean Operation

    Item Operation flow and applicable data, etc. Description 15. Clean 1. Purpose operation The clean operation is to minimize Unit now performing cooling or dry operation the growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air condi- Push "stop"...

  • Page 53: Clean Operation Release

    Item Operation flow and applicable data, etc. Description 16. Clean Setting the clean operation release operation release * J04 will be near the Add J04 of the indoor P.C. board MUC so take steps to assembly. ensure that it will not be * This cancels the auto restart function.

  • Page 54: Select Switch On Remote Controller

    Item Description Operation flow and applicable data, etc. 17. Select 1. Purpose switch on Push the operation button This operation is to operate only remote on the remote controller. one indoor unit using one remote controller controller. Select “B” as the setting for one of the two indoor units 2.

  • Page 55: Auto Restart Function

    9-3. Auto Restart Function 9-3-1. How to Set the Auto Restart Function To set the auto restart function, proceed as follows: This indoor unit is equipped with an automatic restarting function which allows the unit to restart The power supply to the unit must be on ; the operating with the set operating conditions in the function will not set if the power is off.

  • Page 56: 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 57: Remote Controller And Its Fuctions

    9-5. Remote Controller and Its Fuctions 9-5-1. Parts Name of Remote Controller a Infrared signal transmitter n Automatic operation button (AUTO) Transmits signals to the indoor unit. Press this button to operate the air conditioner automatically. button (A receiving beep is heard.) Press the button to start operation.

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

    9-5-2. Name and Functions of Indications on Remote Controller [Display] All indicators, except for the clock time indicator, are displayed by pressing the button. a Transmission mark This transmission mark ( ) indicates when the remote control transmits signals to the indoor unit. b Mode indicator b h j Indicates the current operation mode.

  • Page 59: Hi-Power Mode

    9-6. Hi-POWER Mode ([Hi-POWER] button on the remote controller is pushed.) When [Hi-POWER] button is pushed 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) Automatic operation •...

  • Page 60: Installation Procedure

    10. INSTALLATION PROCEDURE 10-1.Installation Diagram of Indoor and Outdoor Units For the rear left and left 47 mm or more piping Hook Installation Wall Hook plate 140 mm or more 74 mm or Insert the cushion between more the indoor unit and wall, and Hook tilt the indoor unit for better installation work.

  • Page 61: Optional Installation Parts

    10-2.Optional Parts, Accesories and Tools Optional Installation Parts Part Code Parts name Q’ty Refrigerant piping Liquid side Gas side Indoor unit name (Outer diameter) (Outer diameter) 1 ea. 10, 13 6.35 mm 9.52 mm 6.35 mm 12.7 mm Shield pipe (for extension drain hose) (polyethylene foam, 6 mm thick) Attachment bolt arrangement of outdoor unit Elongated drain •...
  • Page 62 Installation/Service Tools Changes in the product and components In air conditioners using R410A, in order to prevent any other refrigerant from being accidentally charged, the service port diameter size of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch) •...

  • Page 63: Installation Of Indoor Unit

    10-3. Installation of Indoor Unit Installation Location • A place which provides enough space around the indoor unit as shown in the diagram. • A place where there are no obstacles near the air inlet and outlet. • A place which allows easy installation of the piping to the outdoor unit. •...

  • Page 64: Electrical Work

    Mounting the installation plate Anchor bolt holes a Installation plate Pipe hole Pipe hole g Mounting screw Indoor unit When the installation plate is directly mounted on the wall Securely fit the installation plate onto the wall by screws with the upper and lower catches, that hold the indoor unit, facing out. To mount the installation plate on a concrete wall use anchor bolts.

  • Page 65: Wiring Connection

    CAUTION • This appliance can be connected to a main circuit breaker in either of the following two ways. (1) Connection to fixed wiring: A switch or circuit breaker which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed wiring.

  • Page 66: Piping And Drain Hose Installation

    Piping and Drain Hose Installation Piping and drain hose forming • Since condensation results in machine trouble, make sure to insulate both the connecting pipes separately. (Use polyethylene foam as insulating material.) Rear right Rear left Bottom left Left Bottom right Right Die-cutting front panel slit Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or right side of the...
  • Page 67 In case of right or left piping • 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. Slit In case of bottom right or bottom left piping •...

  • Page 68: Indoor Unit Installation

    Indoor Unit Installation Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks. Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate. While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate.
  • Page 69 10-4. Which Models Can Be Combined Table of models that can be connected Type Outdoor unit Indoor unit RAS-B10EKVP–E RAS-B13EKVP–E RAS-M14EAV–E RAS-M10UKV–E3 RAS-M13UKV–E3 RAS-M10YDV–E RAS-M13YDV–E Heat pump RAS-B10EKVP–E RAS-B13EKVP–E RAS-B16EKVP–E RAS-M18EAV–E RAS-M10UKV–E3 RAS-M13UKV–E3 RAS-M16UKV–E3 RAS-M10YDV–E RAS-M13YDV–E RAS-M16YDV–E RAS-M10EKCVP–E RAS-M13EKCVP–E RAS-M14EACV–E RAS-M10UKCV–E3 RAS-M13UKCV–E3 RAS-M10YDCV–E...

  • Page 70: Installation Of Outdoor Unit

    10-5. Installation of Outdoor Unit 10-5-1. Installation Location • A place which provides enough space around the outdoor Installation diagram of unit as shown in the diagram. outdoor units A place which can bear the weight of the outdoor unit and •...
  • Page 71 CAUTION Install the outdoor unit without anything blocking the discharging air. When the outdoor unit is installed in a place always exposed to strong winds like on the coast or on a high story of a building, secure the normal fan operation using a duct or a wind shield. Especially in windy areas, install the unit to prevent the admission of wind.

  • Page 72: Refrigerant Piping Connection

    10-5-2. Refrigerant Piping Connection Flaring Cut the pipe with a pipe cutter. Warp Roughness Obliquity Insert a flare nut into the pipe, and flare the pipe. • Projection margin in flaring: A (Unit: mm) Rigid (Clutch type) Outer diameter of copper pipe R410A tool used Conventional tool used 6.35...
  • Page 73 • Tightening torque for connection of flare pipe The pressure of R410A is higher than R22. (Approx. 1.6 times.) Therefore securely tighten the flare pipes which connect the outdoor unit and the indoor unit with the specified tightening torque using a torque wrench. If any flare pipe is incorrectly connected, it may cause not only a gas leakage but also trouble in the refrigeration cycle.
  • Page 74 Packed valve handling precautions • Open the valve stem all the way; but do not try to open it beyond the stopper. Securely tighten the valve stem cap with torque in the following table: Gas side 50 to 62 N·m Hexagon wrench ( 12.7 mm) (5.0 to 6.2 kgf·m)

  • Page 75: Check And Test Operation

    10-6. Grounding This air conditioner must be grounded without fail. Grounding is necessary not only to safeguard against the possibility of receiving an electric shock but also to absorb both the static, which is generated by high frequencies and held in the surface of the outdoor unit, and noise since the air conditioner incorporates a frequency conversion device (called an inverter) in the outdoor unit.

  • Page 76: Test Operation

    10-8.Test Operation Valve cover Gas Leak Test • Check the flare nut connections for gas leaks with a Check places for gas leak detector and/or soapy water. indoor unit Electric parts cover Check places for outdoor unit Test Operation To test the system, press and hold RESET button for 10 sec. (There will be one short beep.) RESET button Auto Restart Setting...
  • Page 77 10-9. USEFUL FUNCTIONS Self-Diagnosis by LED Indication • For this outdoor unit, by referring to the 5 LED (Red) indicator lights, self-diagnosis is possible. LEDS (Red, D09 to D13) are located on the sub-control board underneath the inverter. • LED indication Indoor alarm Contents code...

  • Page 78: How To Diagnose The Trouble

    11. HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor Table 11-1 and outdoor units. Therefore, diagnose troubles Troubleshooting Procedure Page according to the trouble diagnosis procedure as described below. (Refer to the check points in First Confirmation servicing written on the wiring diagrams attached to Primary Judgment...
  • Page 79 Precautions when inspecting the control section of the outdoor unit NOTE : A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter). Therefore, if the power supply is turned off, charge (charging voltage DC280 to 380V) remains and discharging takes a lot of time. After turning off the power source, if touching the charging section before discharging, an electrical shock may be caused.

  • Page 80: First Confirmation

    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.

  • Page 81: Primary Judgment

    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. For any trouble occured at the outdoor unit side, detailed diagnosis is possible by 5-serial LED on the inverter P.C.
  • Page 82 11-4. Self-Diagnosis by Remote Controller (Check Code) (1) If the indicators light as shown B to E in Table 11-3-1, excute 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 indicate the information of the self-diagnosis on the display of the remote controller with the check codes.
  • Page 83 11-4-2. Caution at Servicing (1) After servicing, push the START/STOP button to return to the normal mode. (2) After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status. 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. Current-detect circuit All off Displayed when Even if trying operation again, all board error error is detected. operations stop immediately. : Replace P.C.

  • Page 85: Judgment Of Trouble By Every Symptom

    11-5. Judgment of Trouble by Every Symptom 11-5-1. Indoor Unit (Including Remote Controller) (1) Power is not turned on (Does not operate entirely) <Primary check> 1. Is the supply voltage normal? Operation 2. Is the normal voltage provided to the outdoor unit? 3.
  • Page 86 (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 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 indicator on indoor unit is not lit.
  • Page 89 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 following diagram.
  • Page 90 11-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E <Check procedure> Disconnection of TGa Miswiring in indoor/outdoor Discharge temp. sensor. TGb sensor, units, gas leakage, error, gas leakage Operation P.M.V sensor error disconnection of TS/TC (Check code 03,1E) (Check dode 02,1C) sensors (Check code 02, 1C) Check Item Considerable main cause...
  • Page 91 11-7. Trouble Diagnosis by Outdoor LED For the outdoor unit, the self-diagnosis is possible by five LEDs (Red). • LEDs (Red) (D11 to D15) are 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. To item “Power supply is not turned on” Does the OPERATION indicator flash? Turn off the power breaker and remove CN34 (Micro switch connector).
  • Page 93 11-7-2. How to Check Whether the Minus Ion Generator 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 CN34 (Micro switch connector).

  • Page 94: 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 connector of inverter and compressor. compressor.
  • Page 95 Diagnosis/Process flowchart Item Contents Summary Check Check winding resistance between phases of compres- sor, and resistance between outdoor frames by using a tester. → OK if 10MΩ or more • Is not grounded. Replace control board assembly.  • Is not short-circuited →...
  • Page 96 (3) Check procedures Table 11-9-1 Procedure Check points Causes Turn off the power supply breaker Check whether or not the fuse Impulse voltage was applied or the and remove the P.C. board (F01) is blown. indoor fan motor short-circuited. assembly from electronic parts base.
  • Page 97 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 98 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.) Temperature 10°C 20°C 25°C 30°C 40°C Sensor TA, TC (kΩ) 20.7 12.6 10.0 Remote controller...
  • Page 99 Part name Checking procedure Outdoor temperature sensor Disconnect the connector, and measure resistance value with the (TO), discharge temperature tester. (Normal temperature) sensor (TD), suction Temperature temperature sensor (TS), 10°C 20°C 30°C 40°C 50°C Sensor outdoor heat exchanger TD (kΩ) temperature sensor (TE), A room gas side temperature TGa, TGb (Cooling only)

  • Page 100: How To Simply Judge Whether Outdoor Fan Motor Is Good Or Bad

    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 101: 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 102 Part name Procedures Remarks Front panel 4 ) Push “ ” part under the front panel and remove hooks of the front panel from the installation plate. Pull here Installation plate Push here Push here Front panel Push Press with your thumb 5) Remove the front panel fixing screws (2 pcs.).
  • Page 103 Part name Procedures Remarks " 1) Follow to the procedure in the item !. High voltage generator 2) Remove the drain guide. Connector Drain guide Air ionizer 3) To remove the air ionizer from the back body, Push the pull it toward you while pressing down on its left claw here and right claws.
  • Page 104 Part name Procedures Remarks " High voltage <How to assemble the high voltage generator> generator 1) Insert the high voltage generator straight into the evaporator, and secure it using the fixing screw. Check whether the leads have been completely inserted. 2) Pass the leads of the high voltage generator through the area designated and insert them into its connectors.
  • Page 105 Part name Procedures Remarks " Electric parts 1) Follow the procedure up to 4) in above. Lead wire box assembly 2) Remove screw of earth lead attached to the end cover plate of the evaporator. 3) Remove the lead wire cover, and remove connector (5P) for the fan motor and connector (5P) for the louver motor from the electric parts box assembly.
  • Page 106 Part name Procedures Remarks Horizontal 1) Remove shaft of the horizontal louver louver from the back body. (First remove the left shaft, and then remove other shafts while sliding the horizontal louver leftward.) Slide the horizontal louver leftward Evaporator 1) Follow to the procedure in the item Pipe holder (Heat 2) Remove the pipe holder from the rear side of the...
  • Page 107 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 108 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 109 Part name Procedures Remarks Cross flow <Caution at reassembling> a) At assembling work of the bearing base, check that the drain pipe is surely incorporated in the back body. (Otherwise, water leak is caused.) Drain pipe Bearing base b) 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 110 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 assembly and the P.C. board assembly. 2) Remove the front panel. • Remove the 2 fixing screws. 3) Remove the electrical part base.
  • Page 111 12-3. Outdoor Unit Part name Procedures Remarks Common 1. Detachment Upper cabinet procedure NOTE : Water proof cover Wear gloves for this job. Otherwise, you may injure your hands on the parts, etc. 1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air condi- tioner.
  • Page 112 Part name Procedures Remarks " Front cabinet 1. Detachment 1) Perform step 1 in 2) Remove the fixing screws (ST1TØ4 x 8l l l l l 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST1TØ4 x 8l l l l l 3 pcs.) used to secure the front cabinet at the bottom plate, and the fixing screws (ST1TØ4 x 8l l l l l 2 pcs.) used to secure the motor base.
  • Page 113 Part name Procedure Remarks Inverter 1) Perform work of item 1 in Inverter cover assembly l l l l l 2) Remove screw (ST1TØ4 x 8 2 pcs.) of the upper P . C. board (Soldered surface) part of the front cabinet. •...
  • Page 114 Part name Procedures Remarks Control board 1) Disconnect the leads and connectors connected to assembly the other parts from the control board assembly. 1) Leads CN701 • 3 leads (black, white, orange) connected to CN300 terminal block. • Lead connected to compressor : Disconnect the connector (3P).
  • Page 115 Part name Procedures Remarks Side cabinet 1. Side cabinet (right) " 1) Perform step 1 in and all the steps in 2) Remove the fixing screw (ST1TØ4 x 8l l l l l 5 pcs.) used for securing the side cabinet to the bottom plate and valve fixing plate.
  • Page 116 Part name Procedures Remarks " & Fan motor 1) Perform work of item 1 of 2) Remove the flange nut fixing the fan motor and Propeller fan the propeller. Fan motor • Flange nut is loosened by turning clockwise. (To tighten the flange nut, turn counterclock- wise.) 3) Remove the propeller fan.
  • Page 117 Part name Procedures Remarks Electronic 1. Detachment " expansion 1) Perform step 1 in , all the steps in and 1 in valve coil Coil anti-turn 2) Remove the coil by pulling it up from the elec- lock tronic control valve body. 2.
  • Page 118 Part name Procedures Remarks TE sensor • Attachment (outdoor heat With the sensor leads pointing in the direction exchanging shown in the figure, install the sensor onto the Detail A temperature straight pipe part of the condenser output pipe. Arrow E sensor) Detail C for M14EAV-E, Detail C for M18EAV-E,...
  • Page 119 Part name Procedure Remarks Replacement of 1) Cut the sensor 100 mm longer than old one. temperature 2) Cut the protective tube after pulling out it Cutting here sensor for (200 mm). Thermal Connector sensor part servicing only 3) Move the protective tube toward the thermal sensor side and tear the tip of lead wire in Common service two then strip the covering part.
  • Page 120 Outdoor unit main PCB (MCC-5009) – 120 –...
  • Page 121 Outdoor unit Sub PCB (MCC-5009) – 121 –...

  • Page 122: Exploded Views And Parts List

    13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit (1) 221 222 224 Location No. Part No. Description Location No. Part No. Description 43005611 43049674 SPRING, SUCTION (*1) PANEL ASS’Y, FRONT 43047331 PIPE, DELIVERY 43005610 GRILLE, AIR INLET 43044788 EVAPORATOR (*2) 4301V052 PLATE, FIX 43044789...
  • Page 123 Indoor Unit (2) Location No. Part No. Description 4306A123 TERMINAL BLOCK, 2P 43062189 COVER, E-PARTS 43050382 SENSOR, TC (F6) 43050400 SENSOR, TA 4306S484 P.C. BOARD ASS’Y, WRS-LED 43051343 SW-MICRO ASS ’ 4306S609 PC BOARD ASS Y (B10EKVP-E, M10EKCVP-E) ’ 4306S610 PC BOARD ASS Y (B13EKVP-E, M13EKCVP-E) ’...
  • Page 124 43041631 Compressor DA111A1F-20F1 (M14EAV-E , M18EAV-E) (M14EAV-E , M14EACV-E) 43089160 Cap, Waterproof 43041629 Compressor DA130A1F-25F (M14EAV-E , M18EAV-E) (M18EAV-E , M18EACV-E) 4301P703 Mark, Toshiba 4314G177 Condenser Assy 4301P729 Mark, Inverter (M14EAV-E , M14EACV-E) 43049749 Rubber, Cushion 43043733 Condenser Assy 43062176...
  • Page 125 13-3. P.C. Board Layout Cooling only model Heat pump model Location No. Part No. Description Location No. Part No. Description 43050412 Sensor , (Heat pump) 43050417 Sensor , TGb (Cooling-only) 43050413 Sensor , TS 43050354 Sensor , TD 43050415 Sensor , TO 43062228 Base , PC Board 43050418...
  • Page 126 Appendix Cord Heater Installation Work Applicable Models: RAS-10EAVP-E, RAS-13EAVP-E, RAS-16EAVP-E 1. Required parts for installation work (Recommendation) Part name Q’ty Specifications/Vendor Remarks Cord heater Drain line heaters CSC2 (1.5m, 40W/m) by Flexelec com. Procured locally (Please go to the following URL.) http://www.flexelec.com Thermostat US-622AXRLQE by ASAHI KEIKI...

  • Page 127: Appendix

    Appendix Part name Q’ty Specifications/Vendor Remarks Power cord 2-cores x 0.75mm² or more, H05RN-F Procured locally Thermostat Material: SGCC-Z08, Board thickness: 0.8t Procured locally fixing plate (Drawing attached) PVC tube Inside diameter Ø8 x outside diameter Ø11 x 70 mm Procured locally Shield tube Inside diameter Ø18 x outside diameter Ø26 x 70 mm...
  • Page 128 Appendix 3. Cord heater installation wiring diagram Fuse Thermostat Cord heater * Be sure to connect the fuse and the thermostat to LIVE side of the cord heater. Outdoor unit Earth leakage circuit breaker Power supply for air conditioner Earth leakage circuit breaker Power supply for cord heater NOTE: Separate the cord heater power from the air conditioner power, and connect it to its exclusive breaker.
  • Page 129 Appendix 4. Cord heater installation work procedure Photo / Explanatory diagram Procedure Remove each cabinet, inverter assembly, motor base assembly, and partition board assembly. * Do not damage the electric parts such as cables, connectors, etc. while this work. Remove the upper cabinet and the valve cover. Upper cabinet Related parts / Screws list Used screw...
  • Page 130 Appendix Photo / Explanatory diagram Procedure Remove the motor base assembly, partition plate assembly and the sound insulation board. Motor base assembly Related parts / Screws list Partition plate Used screw assembly Part name Screw type Quantity Motor base assembly Ø4 ×...
  • Page 131 Appendix Photo / Explanatory diagram Procedure Cord heater installation work Drill a hole on the outdoor unit base plate, and fix the cord heater to the outdoor unit base plate using P-shape clamp. Connect the cord heater cables. Using a motor drill, etc., drill Ø3.2 holes on the outdoor unit base plate. (12 positions) See Appendix-10 for the additional hole positions.
  • Page 132 Appendix Photo / Explanatory diagram Procedure Rework the side cabinet (L) to remove part of it. Side cabinet (L) The area to be removed is indicated by the shaded lines in the left figure. After removing part of the side cabinet (L), deburr the edges of the side cabinet (L).
  • Page 133 Appendix Photo / Explanatory diagram Procedure Assembly Return a set of the refrigeration cycle assembly into the outdoor unit base plate and reassemble sound insulation board, partition plate assembly, fan motor assembly, and side cabinet (R/L) as original. Fix the thermostat fixing plate to the side cabinet (R), built in the inverter assembly, and then connect various cables.
  • Page 134 Appendix 5. Drawing of thermostat fixing plate 3.4 burring hole (Upward) 3.4 burring hole (Downward) Material: SGCC-Z08, Thickness: 0.8t Appendix-9...
  • Page 135 Appendix 6. Diagram showing positions φ φ φ φ φ 3.2 mm holes to be additionally drilled in base plate Appendix-10...

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