Toshiba RAS-B10GKVP-E Service Manual
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Toshiba RAS-B10GKVP-E Service Manual

Split type heat pump type/cooling onlytype
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See also: Owner's Manual , Installation Manual

SERVICE MANUAL

<Heat Pump Type>
Indoor Unit
RAS-B10GKVP-E RAS-M10GKCVP-E
RAS-B13GKVP-E RAS-M13GKCVP-E
RAS-B16GKVP-E RAS-M16GKCVP-E
Outdoor Unit
RAS-M14GAV-E
RAS-M18GAV-E
Revised pages : 25, 26, 27 and 28 (Jan./2006)
Revised pages : 3 and 71 (May/2006)
Revised pages : 21, 22, 121, 122 and Back cover (Mar./2010)
R410A
SPLIT TYPE
<Cooling OnlyType>
Indoor Unit
Outdoor Unit
RAS-M14GACV-E
RAS-M18GACV-E
PRINTED IN JAPAN, Mar., 2010 ToMo
FILE NO. A05-009-1
Revised on Jan./2006
Revised on May/2006
Revised on Mar./2010
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Summary of Contents for Toshiba RAS-B10GKVP-E

  • Page 1: Service Manual

    Revised on Jan./2006 Revised on May/2006 Revised on Mar./2010 SERVICE MANUAL SPLIT TYPE <Heat Pump Type> <Cooling OnlyType> Indoor Unit Indoor Unit RAS-B10GKVP-E RAS-M10GKCVP-E RAS-B13GKVP-E RAS-M13GKCVP-E RAS-B16GKVP-E RAS-M16GKCVP-E Outdoor Unit Outdoor Unit RAS-M14GAV-E RAS-M14GACV-E RAS-M18GAV-E RAS-M18GACV-E Revised pages : 25, 26, 27 and 28 (Jan./2006) Revised pages : 3 and 71 (May/2006) Revised pages : 21, 22, 121, 122 and Back cover (Mar./2010)

  • Page 2: Table Of Contents

    CONTENTS 1. SAFETY PRECAUTIONS ................3 2. SPECIFICATIONS ..................5 3. REFRIGERANT R410A ................12 4. CONSTRUCTION VIEWS ................ 20 5. WIRING DIAGRAM .................. 23 6. SPECIFICATIONS OF ELECTRICAL PARTS .......... 25 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 ² (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 • 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

    With the RAS-M18GAV-E and RAS-M18GACV-E outdoor unit models, the 13 + 16 or 16 + 16 combination is not an option. The contents noted in this service manual limit the indoor units to the RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E, RAS-M10GKCVP-E, RAS-M13GKCVP-E and RAS-M16GKCVP-E.

  • Page 6: Heat Pump Models

    2-1. Specifications <Heat Pump Models> RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E / RAS-M14GAV-E, RAS-M18GAV-E Indoor RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E Unit model Outdoor RAS-M14GAV-E RAS-M18GAV-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 –...
  • Page 7 <Cooling Only Models> RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E / RAS-M14GACV-E, RAS-M18GACV-E Indoor RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E Unit model Outdoor RAS-M14GACV-E RAS-M18GACV-E Cooling capacity (kW) Cooling capacity range (kW) 1.4 – 4.5 1.4 – 6.2 Heating capacity (kW) — — Heating capacity range (kW) —...
  • Page 8 2-2. Performance Specifications Combinations of Indoor Unit <Cooling> RASM14GAV-E, RAS-M14GACV-E Operating Unit capacity Power Volts Capacity Running current Operation Operation indoor unit (kW) Consumption 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-M18GAV-E , RAS-M18GACV-E Operating Unit capacity Power Volts Capacity Running current Operation Operation indoor unit (kW) Consumption mode status — — 2.7 (1.1 to 3.2) 3.03 (1.43 to 03.83) 600 (220 to 800) 1 unit — — 3.7 (1.1 to 4.2) 5.10 (1.43 to 06.49) 1100 (220 to 1400) —...
  • Page 10 2-2-1. Operation Characteristic Curve <Cooling> RAS-M14GAV-E, RAS-M14GACV-E <Heating> RAS-M14GAV-E • Conditions Indoor : DB 20˚C Outdoor : DB 7˚C/WB 6˚C Air flow : High Pipe length : 7.5m × 2 2 units oper 230V • Conditions Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C Air flow : High Pipe length : 7.5m ×...
  • 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 × 2 2 units operating 230V • Conditions Indoor : DB 20˚C Outdoor : DB 7˚C/WB 6˚C Air flow : High Pipe length : 7.5m ×...

  • 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 even when refrigerant leaks, its concentration is 1.6 times higher than conventional refrigerant...
  • 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 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 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 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 16 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 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 3-5-3. Brazing 2. Characteristics required for flux • 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 20: Construction Views

    4. CONSTRUCTION VIEWS 4-1. Indoor Unit RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E Plasma pure filter Indoor heat exchanger Front panel Air filter Zeolite-plus filter Air ionizer Knockout system Knockout system 54.5 Remote controller holder 54.5 Installation plate hanging section Wireless remote controller...

  • Page 21: Outdoor Unit

    Revised on Mar./2010 4-2. Outdoor Unit RAS-M14GAV-E, RAS-M18GAV-E (Heat pump models) RAS-M14GACV-E, RAS-M18GACV-E (Cooling only models) Ø25 drain hole leg part Ø11-14U-shape hole (for Ø8-Ø10 anchor bolt) 2-Ø20x88 drain long hole 8-Ø7 hole (for fixing outdoor unit) leg part Nameplate Ø11x14 long hole (for Ø8-Ø10 anchor bolt) Packed valve cover...
  • Page 22 Revised on Mar./2010 RAS-M14GAV-E , RAS-M18GAV-E (Heat pump models)   RAS-M14GACV-E , RAS-M18GACV-E (Cooling only models)    In a case that “ ” is attached at the side of the model name on the nameplate, its packed valve cover is made by metal.

  • Page 23: Wiring Diagram

    5. WIRING DIAGRAM 5-1. Indoor Unit RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E (Heat pump models) RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E (Cooling only models) POWER SUPPLY CIRCUIT Air purifier Electrode High-voltage Power supply Wireless Unit Assembly – 23 –...
  • Page 24 5-2. Outdoor Unit RAS-M14GAV-E, RAS-M18GAV-E (Heat pump models) RAS-M14GACV-E, RAS-M18GACV-E (Cooling only models) – 24 –...

  • Page 25: Specifications Of Electrical Parts

    6. SPECIFICATIONS OF ELECTRICAL PARTS 6-1. Indoor Unit RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E Parts name Type Specifications Fan motor (for indoor) MF-280-30-5R DC280–340V, 30W Room temp. sensor (TA-sensor) ( – ) 10kΩ at 25°C Heat exchanger temp. sensor (TC-sensor) ( –...

  • Page 26: Refrigerant Cycle Diagram

    7. REFRIGERANT CYCLE DIAGRAM 7-1. Refrigerant Cycle Diagram RAS-B10GKVP-E, RAS-B13GKVP-E RAS-M14GAV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Indoor fan Per 1 unit Max. : 20m Deoxidized copper pipe Min. : 2m Pressure measurement...
  • Page 27 RAS-M10GKCVP-E, RAS-M13GKCVP-E RAS-M14GACV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Indoor fan Per 1 unit Max. : 20m Deoxidized copper pipe Min. : 2m Pressure measurement Both A and B room Total : 30m Outer dia.
  • Page 28 RAS-B10GKVP-E, RAS-M13GKVP-E, RAS-M16GKVP-E RAS-M18GAV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Indoor fan Per 1 unit Max. : 20m Deoxidized copper pipe min : 2m Pressure measurement Both A and B room Total : 30m Outer dia.
  • Page 29 RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E RAS-M18GACV-E Temp. measurement INDOOR UNIT Indoor heat To B room To B room exchanger Indoor fan Per 1 unit Max. : 20m Deoxidized copper pipe Min. : 2m Pressure measurement Both A and B room Total : 30m Outer dia.

  • Page 30: Operation Data

    7-2. Operation Data <Cooling> RAS-M14GAV-E, RAS-M14GACV-E Temperature Operating combination Heat exchanger No.of Standard Compressor Indoor Outdoor condition (°C) (Unit) pipe temp. operating pressure revolution units Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps) — 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-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-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...
  • Page 32 RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-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 33 8-2. Outdoor Unit (Inverter Assembly) RAS-M14GAV-E, RAS-M18GAV-E (Heat pump models) RAS-M14GACV-E, RAS-M18GACV-E (Cooling only models) – 33 –...

  • Page 34: Operation Description

    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 DC motor for the indoor fan to IGBT module (Compressor stop function) motor and the outdoor fan motor.
  • Page 35 9-2. Operation Description 9-2. 1. Basic operation ........................36 1. Operation control ....................... 36 2. Operating mode selection when performing 2-room operation ......... 37 3. Cooling/Heating operation ....................37 4. AUTO operation ......................... 38 5. DRY operation ........................38 2. Indoor fan motor control ......................39 <In cooling operation>...

  • Page 36: Basic Operation

    Item Operation flow and applicable data, etc. Description 1. Operation control 1. Basic 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 37: Operating Mode Selection When Performing 2-Roomoperation

    Item Operation flow and applicable data, etc. Description 2. Operating mode selection when performing 2-roomoperation 1. Basic operation 1) The outdoor unit operating mode conforms to the instructions of the indoor unit that was pressed first. (Continued) 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 left table.

  • Page 38: Auto Operation

    Item Operation flow and applicable data, etc. Description 4. AUTO operation 1. Basic 1) Detects the room temperature (Ta) operation when the operation started. Selection of operation mode (Continued) 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 39: Indoor Fan Motor Control

    *4 : Fan speed = (M + –L) x 2/4 + L +1.5 *5 : Fan speed = (M + –L) x 1/4 + L +1.0 +0.5 (Linear approximation L(W6) from M+ and L) (Table 1) Indoor fan air flow rate RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E COOL RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E speed HEAT...

  • Page 40: In Heating Operation

    Item Operation flow and applicable data, etc. Description <In heating operation> (Heat pump model) 2. Indoor fan 1) When setting the fan speed to L, motor control L+, M, M+ or H on the remote (Continued) controller, the operation is per- formed 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 controlled. 1) The operation command sent motor control from the remote controller is Receiving the operation command from the controller of processed by the indoor unit indoor unit, the controller of outdoor unit controls fan speed.
  • Page 42 Item Operation flow and applicable data, etc. Description Heating operation 3. Outdoor fan motor control 1) Operation is performed at the MAX revolutions shown in the left tables for 3 minutes after com- (Continued) pressor operation starts and for 1 minute after defrosting operation ends. 2) Following 1) above, operation is performed at the outdoor unit fan revolutions shown in the left tables according to the outdoor heatexchanger sensor (TE sensor) temperature.

  • Page 43: Capacity Control

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

  • Page 44: Release Protective Control By Temperature Of Indoor Heat Exchanger

    Item Operation flow and applicable data, etc. Description <In cooling/dry operation> 6. Release protective 1) When temperature of the indoor control by temperature of heat exchanger drops below (Prevent-freezing control for indoor heat exchanger) indoor heat exchanger 5°C, the compressor speed is In cooling/dry operation, the sensor of indoor heat 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/ 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 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 position • The position is automatically controlled according to the operation 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 47: Eco Operation

    Item Operation flow and applicable data, etc. Description 10. ECO When pressing [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 is...

  • Page 48: 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 49: Air Purifying Control [Detection Of Abnormality]

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

  • Page 50: Pulse Motor Valve (P .M.v.) Control

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

  • Page 51: Clean Operation

    Item Operation flow and applicable data, etc. Description 1. Purpose 15. Clean 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...

  • Page 52: Clean Operation Release

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

  • Page 53: Select Switch On Remote Controller

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

  • Page 54: 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 55: 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 56: Remote Controller And Its Fuctions

    9-5. Remote Controller and Its Fuctions 9-5-1. Parts Name of Remote Controller Infrared signal emitter Cancel button (CLR) Transmits signal to the indoor unit. Press this button to cancel the ON timer and OFF timer. (A receiving beep is heard.) button High power button (Hi POWER) Press the button to start operation.

  • Page 57: 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 pressing the button. Transmission mark TIMER and clock time indicator This transmission mark indicates when the The time setting for timer operation or the clock remote controller transmits signals to the indoor time is indicated.

  • Page 58: 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 59: 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 60 Parts name Q’ty Refrigerant piping Indoor unit name Liquid side (Outer diameter) Gas side (Outer diameter) 1 ea. RAS-B10GKVP-E, B13GKVP-E 6.35 mm 9.52 mm RAS-B16GKVP-E 6.35 mm 12.7 mm Shield pipe (for extension drain hose) (polyethylene foam, 6 mm thick)

  • Page 61: Installation/Servicing Tools

    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 62: Indoor Unit

    10-3. Indoor Unit 10-3-2. Drilling a Hole and Mounting Instal- lation Plate 10-3-1. Installation Place • A place which provides enough spaces around Drilling a hole the indoor unit as shown in the diagram. When install the refrigerant pipes from the rear. •...
  • Page 63 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, that the air conditioner.
  • Page 64 10-3-5. Piping and Drain Hose Installation CAUTION Piping and drain hose forming • Be sure to refer to the wiring system diagram labeled inside the front panel. • Since condensation results in machine trouble, • Check local electrical regulations for any make sure to insulate both the connecting pipes specific wiring instructions or limitations.
  • Page 65 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 66 10-3-7. Drainage CAUTION 1. Run the drain hose at a downward sloped angle. • Bind the auxiliary pipes (two) and connecting NOTE : cable with facing tape tightly. In case of leftward piping and rear-leftward • Hole should be made at a slight downward piping, bind the auxiliary pipes (two) only with slant on the outdoor side.
  • Page 67 10-4. Which Models Can Be Combined Table of models that can be connected Type Outdoor unit Indoor unit RAS-B10GKVP-E RAS-B13GKVP-E RAS-M14GAV-E RAS-M10GKV-E RAS-M13GKV-E RAS-M10GDV-E RAS-M13GDV-E Heat pump RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E RAS-M18GAV-E RAS-M10GKV-E RAS-M13GKV-E RAS-M16GKV-E RAS-M10GDV-E RAS-M13GDV-E RAS-M16GDV-E RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M14GACV-E...

  • Page 68: Installation Of Outdoor Unit

    10-5. Installation of Outdoor Unit • You will need to add 20 g of refrigerant per meter of added connection piping for installa- 10-5-1. Installation Location tions requiring connection piping to be between 21 m to 30 m. • A place which provides enough space around the outdoor unit as shown in the diagram.
  • Page 69 10-5-2. Draining the Water Precautions for adding refrigerant • Holes are provided on the base plate of the • Use a scale having a precision with at least 10 g outdoor unit to ensure that the defrost water per index line when adding the refrigerant. produced during heating operations is drained off Do not use a bathroom scale or similar instrument.
  • Page 70 10-5-3. Refrigerant Piping Connection Tightening Connection Align the centers of the connecting pipes and tighten Flaring the flare nut as much as possible with your fingers. 1. Cut the pipe with a pipe cutter. Then tighten the nut with a wrench and torque wrench as shown in the figure.
  • Page 71 Use a vacuum pump Connectable capacity class Be sure to use a vacuum pump with counter-flow Total prevention function so that oil inside the pump does 10, 13 10, 13 not flow back into the air conditioner pipes when the pump stops.
  • Page 72 Revised Packed Valve handling precautions • Open the valve stem all the way; but do not try to 1 2 3 open it beyond the stopper. • Securely tighten the valve stem cap with torque in the following table: Gas side (Ø12.7 mm) 50 to 62 N•m (5.0 to 6.2 kgf•m) Gas side (Ø9.52 mm) 33 to 42 N•m (3.3 to 4.2 kgf•m)

  • Page 73: Check And Test Operation

    10-6. Grounding CAUTION This air conditioner must be grounded without fail. • Use a circuit breaker of a type that is not Grounding is necessary not only to safeguard tripped by shock waves. against the possibility of receiving an electric shock •...

  • Page 74: Test Operation

    10-8. Test Operation 10-8-4. Remote Controller Selector Switch Setting 10-8-1. Gas Leak Test • Check the flare nut connections for gas leaks with Remote controller selector switch a gas leak detector and/or soapy water. • If two indoor units are installed in the same room or adjoining rooms, the second unit can inadvert- Valve cover Check places for...
  • Page 75 10-9. Useful Functions 10-9-1. 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 Contents Indoor alarm code...

  • Page 76: How To Diagnose The Trouble

    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 Page...
  • Page 77 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. Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power.

  • Page 78: 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. 11-1-3.

  • Page 79: 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. 11-3.

  • Page 80: Self-Diagnosis By Remote Controller (Check Code)

    11-4. 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 condition and indicates the information of the self-diagnosis on the display of the remote controller with the check codes.
  • Page 81 11-4-2. Caution at Servicing 1. After servicing, press 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 82 Block distinction Operation of diagnosis function Judgment and action Check Check Block Cause of operation conditioner Remarks code code status Outdoor Inverter over-current All off Displayed when Even if trying operation again, P .C. board protective circuit error is detected. all operations stop immediately.

  • Page 83: 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? 2. Is the normal voltage provided to the outdoor unit? 3.
  • Page 84 (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 85 (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 86 (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 87 11-5-2. 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 88 11-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E <Check procedure> Disconnection of TGa sensor. Discharge temp.error, TGb sensor, P.M.V sensor error gas leakage (Check dode 02,1C) (Check code 03,1E) Miswiring in indoor/outdoor units, gas leakage, disconnection of TS/TC sensors (Check code 02, 1C) Operation Is there miswiring of...
  • Page 89 11-7. Trouble Diagnosis by Outdoor LED For the outdoor unit, the self-diagnosis is possible by five LEDs (Red). • LEDs (Red) (D09 to D13) 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 90: Troubleshooting

    11-8. Troubleshooting 11-8-1. 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 CN34 (Micro switch connector).
  • Page 91 11-8-2. 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. 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 92: How To Diagnose Trouble In Outdoor Unit

    11-9. How to Diagnose Trouble in Outdoor Unit 11-9-1. Summarized Inner Diagnosis of Inverter Assembly Table 11-9-1 Diagnosis/Process flowchart Item Contents Summary Preparation Turn “OFF” the power supply breaker, and remove 3P connector which connects Remove connector of compressor. inverter and compressor. Check •...
  • Page 93 Diagnosis/Process flowchart Item Contents Summary Check Check winding resistance between phases of compres- sor, and resistance between outdoor frames by using a tester. • Is not grounded. → OK if 10MΩ or more Replace control board assembly. ⎫ • Is not short-circuited →...
  • Page 94 (3) Check procedures Table 11-10-1 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 95 11-10-2. 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 96 11-10-3. 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 97 Part name Checking procedure ROutdoor temperature sensor Disconnect the connector, and measure resistance value with the tester. (TO), discharge temperature (Normal temperature) sensor (TD), suction temperature Temperature sensor (TS), outdoor heat ex- 10°C 20°C 25°C 30°C 40°C Sensor changer temperature sensor (TE), A room gas side temperature TD (kΩ) sensor (TGa), B room gas side...
  • Page 98 11-11. 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 99: 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 100 Part name Procedures Remarks Front panel 4) Press “ ” part under the front panel and remove hooks of the front panel from (Continued) the installation plate. Pull here Installation plate Press here Press here Front panel Press 5) Remove the front panel fixing screws. (2 pcs.) 6) Press the electric parts box with the right thumb while pulling the both sides of the...
  • Page 101 Part name Procedures Remarks High voltage 1) Follow to the procedure in the item generator 2) Remove the drain guide. 3) To remove the air ionizer from the back body, pull it toward you while pressing down on its Connector left and right claws.
  • Page 102 Part name Procedures Remarks Electric parts 1) Follow the procedure up to 4) in above. box assembly 2) Remove screw of earth lead attached to the end plate of the evaporator. Lead wire cover 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 103 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 louver leftward Evaporator 1) Follow to the procedure in the item (Heat exchanger) 2) Remove the pipe holder from the rear side of the main unit.
  • Page 104 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 base.
  • Page 105 Part name Procedures Remarks 1) Follow to the procedure in the item motor 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 106 Part name Procedures Remarks <Caution at reassembling> Cross flow 1) At assembling work of the bearing base, check (Continued) that the drain pipe is surely incorporated 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 107 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 108 12-3. Outdoor Unit Part name Procedure Remarks 1. Detachment Common procedure Upper cabinet NOTE Wear gloves for this job. Water proof cover 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 conditioner.
  • Page 109 Part name Procedure Remarks 1. Detachment Front cabinet 1) Perform step 1 in 2) Remove the fixing screws (ST1TØ4 × 8L 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST1TØ4 × 8L 3 pcs.) used to secure the front cabinet at the bottom, and the fixing screws (ST1TØ4 ×...
  • Page 110 Part name Procedure Remarks Inverter 1) Perform work of item 1 in assembly Inverter cover 2) Remove screw (ST1TØ4 × 8L 2 pcs.) of the P . C. board upper part of the front cabinet. (Soldered surface) • If removing the inverter cover in this condition, P .C.
  • Page 111 Part name Procedure Remarks Control 1. Disconnect the leads and connectors connected to board the other parts from the control board assembly. assembly 1) Leads CN701 • 3 leads (black, white, orange) connected to CN300 terminal block. • Lead connected to compressor : Disconnect the connector (3P).
  • Page 112 Part name Procedure Remarks 1. Side cabinet (right) Side cabinet 1) Perform step 1 in and all the steps in 2) Remove the fixing screw (ST1TØ4 × 8L 5 pcs.) used for securing the side cabinet to the bottom plate and valve fixing panel.
  • Page 113 Part name Procedure Remarks Compressor 1) Perform work of item 1 of 2) Extract refrigerant gas. 3) Remove the partition board. (ST1TØ4 × 8L 3 pcs.) 4) Remove the sound-insulation material. 5) Remove terminal cover of the compressor, and disconnect lead wire of the compres- sor and the comp.
  • Page 114 Part name Procedure Remarks 1. Detachment Electronic expansion 1) Perform step 1 in , all the steps in and 1 in valve coil 2) Remove the coil by pulling it up from the Coil electronic control valve body. anti-turn lock 2.
  • Page 115 Part name Procedure Remarks TE sensor (outdoor heat exchanging temperature sensor) • Attachment Detail A With the sensor leads pointing in the direction shown in the Arrow D figure, install the sensor onto the straight pipe part of the condenser output pipe. Detail B Detail D Detail C...
  • Page 116 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 Common service it (200 mm). parts of sensor 3) Move the protective tube toward the Cutting here...
  • Page 117 Outdoor unit Main P.C. board (MCC-5009) – 117 –...
  • Page 118 Outdoor unit Sub P.C. board (MCC-5015-03) – 118 –...

  • Page 119: Exploded Views And Parts List

    13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit (1) 225, 226 221, 222, 224 218, 219 • The parts in the following parts list are conformed to RoHS. Therefore be sure to use the following parts for repairing and replacing. Location Location Part No.
  • Page 120 Indoor Unit (2) 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 Location Part No. Description Part No. Description 4306A123 Terminal Block, 2P 4306S709 P .C.
  • Page 121 Revised on Mar./2010 13-2. Outdoor Unit 45, 46 23, 24 25, 26, 47 12, 13 14, 16, 18, 20 10, 11 15, 17, 19, 21, 22 3 ∗ 8 ∗ (made by plastic) 10, 11 NOTE ∗ 51 ∗ For the packed valve covers, we have changed 50 ∗...
  • Page 122 Nipple, Drain (M14GAV-E, M18GAV-E) 43062262 Cover, Wiring Ass’y 43089160 Cap, Waterproof 43041634 Compressor, (M14GAV-E, M18GAV-E) DA111A1F-20F1, RoHS (M14GAV-E, M14GACV-E) 4301P703 Mark, TOSHIBA 43041635 Compressor, 4301P729 Mark, Inverter DA130A1F-25F, RoHS 43049749 Rubber, Cushion (M18GAV-E, M18GACV-E) 43062176 Sleeve, Flag 43043750 Condenser Ass’y 43063321 Holder, Sensor, Ø4, 8-9.52...
  • Page 123 13-3. P.C. Board Layout 711, 713 702 Sencor, TS 701 Sencor, TE 703 Sencor, TO 702 Sencor, TS 706 Sencor, TGa 703 Sencor, TO 707 Sencor, TGb 704 Sencor, TGa (Ø4) 708 Sencor, TD (Ø4) 705 Sencor, TGb (Ø4) 708 Sencor, TD (Ø4) •...

  • Page 124: Cord Heater Installation Work

    Appendix Cord Heater Installation Work Applicable Models: RAS-M14GAV-E, RAS-M18GAV-E 1. Required parts for installation work (Recommendation) The above products conform to RoHS (2002/95/EC). Therefore when procuring and using the following recommended parts at local site, it is recommended to confirm each part conforms to RoHS before use. Part name Q’ty Specifications/Vendor...
  • Page 125 Appendix Part name Q’ty Specifications/Vendor Remarks Power cord 2-cores x 0.75mm² or more, H05RN-F Procured locally Thermostat fixing plate Material: SGCC-Z08, Board thickness: 0.8t Procured locally (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 126 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 127 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 128 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 129 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 addi- tional hole positions.
  • Page 130 Appendix Photo / Explanatory diagram Procedure Rework the side cabinet (L) to remove part of it. The area to be removed is indicated by the shaded lines Side cabinet (L) in the left figure. After removing part of the side cabinet (L), deburr the edges of the side cabinet (L).
  • Page 131 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. After then, incorporate front cabinet, upper cabinet, wiring cover, and valve cover as before.
  • Page 132 Appendix 5. Drawing of thermostat fixing plate 2-Ø3.4 burring hole (Upward) 3-Ø3.4 burring hole (Downward) Material: SGCC-Z08, Thickness: 0.8t Appendix-9...
  • Page 133 Appendix 6. Diagram showing positions Ø3.2 mm holes to be additionally drilled in base plate Appendix-10...
  • Page 134 This product is compliant with Directive 2002/95/EC, and cannot be disposed as unsorted municipal waste. TOSHIBA CARRIER CORPORATION 23-17, TAKANAWA 3 CHOME, MINATOKU, TOKYO, 108-8580, JAPAN Copyright © 1999 to 2009 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

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