Toshiba RAS-B05B2KV2G-E Service Manual

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SERVICE MANUAL

Indoor Unit

RAS-B05B2KV2G-E

RAS-B07B2KV2G-E

RAS-B10B2KV2G-E

RAS-B13B2KV2G-E

RAS-B16B2KV2G-E

RAS-B18B2KV2G-E

RAS-B24B2KV2G-E

RAS-B05B2KVG-E2

RAS-B07B2KVG-E2

RAS-B10B2KVG-E2

RAS-B13B2KVG-E2

RAS-B16B2KVG-E2

RAS-B18B2KVG-E2

RAS-B24B2KVG-E2

B2KV2G-E Series

R32

Outdoor Unit

RAS-05B2AVG-E2

RAS-07B2AVG-E2

RAS-10B2AVG-E2

RAS-13B2AVG-E2

RAS-16B2AVG-E2

RAS-18B2AVG-E2

RAS-24B2AVG-E2

B2KVG-E2 Series

FILE NO. SVM-24056

SPLIT TYPE

November, 2024

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Summary of Contents for Toshiba RAS-B05B2KV2G-E

Page 1 FILE NO. SVM-24056 SERVICE MANUAL SPLIT TYPE Outdoor Unit Indoor Unit RAS-05B2AVG-E2 RAS-B05B2KV2G-E RAS-07B2AVG-E2 RAS-B07B2KV2G-E RAS-10B2AVG-E2 RAS-B10B2KV2G-E RAS-13B2AVG-E2 RAS-B13B2KV2G-E RAS-16B2AVG-E2 RAS-B16B2KV2G-E RAS-18B2AVG-E2 RAS-B18B2KV2G-E RAS-24B2AVG-E2 RAS-B24B2KV2G-E RAS-B05B2KVG-E2 RAS-B07B2KVG-E2 RAS-B10B2KVG-E2 RAS-B13B2KVG-E2 RAS-B16B2KVG-E2 RAS-B18B2KVG-E2 RAS-B24B2KVG-E2 B2KV2G-E Series B2KVG-E2 Series November, 2024...
Page 2: Table Of Contents
CONTENTS 1. SAFETY PRECAUTIONS ................3 2. SPECIFICATIONS ..................7 3. REFRIGERANT R32 .................12 4. CONSTRUCTION VIEWS ................ 20 5. WIRING DIAGRAM .................. 28 6. SPECIFICATIONS OF ELECTRICAL PARTS ......... 32 7. REFRIGERANT CYCLE DIAGRAM ............33 8. CONTROL BLOCK DIAGRAM ..............41 9.
Page 3: Safety Precautions
1. SAFETY PRECAUTIONS Read the precautions in this manual This appliance is ﬁ lled with R32. carefully before operating the unit. (Flammable Material) Information included in the Operation Service personnel should be handing this equipment Manual and/or Installation Manual. with reference to the Installation Manual. Warning Indications on the Air Conditioner Unit Warning indication Description...
Page 4: New Refrigerant Air Conditioner Installation
CAUTION New Refrigerant Air Conditioner Installation • THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R32) WHICH DOES NOT DESTROY OZONE LAYER. R32 refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of R32 refrigerant is approx.
Page 5 WARNING • Never modify this unit by removing any of the safety guards or bypassing 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 6: For Reference
CAUTION • Exposure of unit to water or other moisture before installation may result in an electrical short. Do not store in a wet basement or expose to rain or water. • Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of the unit or where noise or discharged air might disturb neighbors.
Page 7: Specifications
2. SPECIFICATIONS 2-1. Specification Unit model Indoor RAS-B05B2KV2G-E(B2KVG-E2) RAS-B07B2KV2G-E(B2KVG-E2) Outdoor RAS-05B2AVG-E2 RAS-07B2AVG-E2 1.50 2.00 Cooling capacity (kW) Cooling capacity range (kW) 0.58-2.00 0.76-2.40 2.00 Heating capacity (kW) 2.50 0.58-3.00 0.76-3.30 Heating capacity range (kW) Power supply 1Ph/50Hz/220-240V, 1Ph/60Hz/220-230V Cooling Heating...
Page 8 Unit model Indoor RAS-B10B2KV2G-E(B2KVG-E2) RAS-B13B2KV2G-E(B2KVG-E2) Outdoor RAS-10B2AVG-E2 RAS-13B2AVG-E2 2.50 3.30 Cooling capacity (kW) Cooling capacity range (kW) 0.80-3.00 1.00-3.50 3.20 Heating capacity (kW) 3.60 0.76-3.90 0.76-4.30 Heating capacity range (kW) Power supply 1Ph/50Hz/220-240V, 1Ph/60Hz/220-230V Cooling Heating Cooling Heating Electric Indoor Operation mode characteristic Running current...
Page 9 Unit model Indoor RAS-B16B2KV2G-E(B2KVG-E2) RAS-B18B2KV2G-E(B2KVG-E2) Outdoor RAS -16B2AVG-E2 RAS-18B2AVG-E2 Cooling capacity (kW) 4.20 5.00 1.10-4.70 1.10-5.35 Cooling capacity range (kW) Heating capacity (kW) 5.00 5.40 0.90-6.00 1.10-6.00 Heating capacity range (kW) 1Ph/50Hz/220-240V, 1Ph/60Hz/220-230V Power supply Electric Indoor Operation mode Co o ling H ea ting Co o ling H ea ting...
Page 10 Unit model Indoor RAS-B24B2KV2G-E(B2KVG-E2) Outdoor RAS-24B2AVG-E2 Cooling capacity (kW) 6.50 1.10-7.05 Cooling capacity range (kW) Heating capacity (kW) 7.90 1.20-8.00 Heating capacity range (kW) Power supply 1Ph/50Hz/220-240V, 1Ph/60Hz/220-230V Electric Indoor Operation mode Cooling Heating 0.36-0.34 characteristic Running current 0.36-0.34 Power consumption Power factor Outdoor Operation mode...
Page 11: Operation Characteristic Curve
2-2. Operation Characteristic Curve <Cooling> <Heating> Conditions Outdoor : DB 7 C/WB 6 Conditions Indoor : DB 20 C/WB 15 Indoor : DB 27 C/WB 19 Length : 5m (For 05-16k) Outdoor : DB 35 C/WB 24 Length : 5m (For 05-16k) Indoor Air Flow : High Length : 7.5m (For 18-24k) Indoor Air Flow : High...
Page 12: Refrigerant R32
3. REFRIGERANT R32 3. If a refrigeration gas leakage occurs during This air conditioner adopts the new refrigerant HFC (R32) which does not damage the ozone layer. installation/servicing, be sure to ventilate fully. If the refrigerant gas comes into contact with fire, a The next section describes the precautions for air conditioner using the new refrigerant.
Page 13: Processing Of Piping Materials
Table 3-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R32(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 R32 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: Required Tools
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 R32 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
3-5. Brazing of Pipes 3. Types of flux 3-5-1. Materials for Brazing • Noncorrosive flux 1. Silver brazing filler Generally, it is a compound of borax and boric Silver brazing filler is an alloy mainly composed acid. of silver and copper. It is used to join iron, copper It is effective in case where the brazing tem- or copper alloy, and is relatively expensive though perature is higher than 800°C.
Page 19 3-5-3. Brazing As brazing work requires sophisticated techniques, experiences based upon a theoretical knowledge, it must be performed by a person qualified. Flow meter In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to Stop valve proceed with brazing while letting dry Nitrogen gas (N2) flow.
Page 20: Construction Views
4. CONSTRUCTION VIEWS 4-1. Indoor Unit RAS-B05B2KV2G-E, RAS-B07B2KV2G-E, (Unit : mm) RAS-B10B2KV2G-E, RAS-B13B2KV2G-E Air filter Front panel Grille inlet Heat exchanger Air outlet Knock out system Wireless remote controller Hanger Outline of indoor unit Hanger Hanger Center line - 20 -...
Page 21 RAS-B16B2KV2G-E, RAS-B18B2KV2G-E (Unit : mm) Wireless remote controller 12.70 6.35 Hanger Outline of indoor unit Hanger Hanger Center line - 21 -...
Page 22 RAS-B24B2KV2G-E (Unit : mm) 1050 Wireless remote controller (Flare 12.70) Hanger Outline of indoor unit Hanger Center line Hanger - 22 -...
Page 23 RAS-B05B2KVG-E2, RAS-B07B2KVG-E2, (Unit : mm) RAS-B10B2KVG-E2, RAS-B13B2KVG-E2 Air filter Front panel Grille inlet Heat exchanger Air outlet Knock out system Wireless remote controller Hanger Outline of indoor unit Hanger Hanger Center line - 23 -...
Page 24 RAS-B16B2KVG-E2, RAS-B18B2KVG-E2 (Unit : mm) Wireless remote controller 12.70 6.35 Hanger Outline of indoor unit Hanger Hanger Center line - 24 -...
Page 25 RAS-B24B2KVG-E2 (Unit : mm) 1050 Wireless remote controller (Flare 12.70) Hanger Outline of indoor unit Hanger Center line Hanger - 25 -...
Page 26: Outdoor Unit
4-2. Outdoor Unit (For 05k, 07k, 10k, 13k) (Unit : mm) 11 x 14 hole (For 8-10 anchor bolt) 6 hole 6 hole A detail drawing B detail drawing (Back leg) (Front leg) Drain outlet FAN-GUARD COVER-PV P-FAN Front Side Electrical part Liquid side (Flare...
Page 27 (For 16k, 18k, 24k) (Unit : mm) 6 hole A detail drawing 6 hole (Back leg) 11 x 14 hole Drain outlet (For 8-10 anchor bolt) B detail Drawing (Front leg) FAN-GUARD P-FAN COVER-PV Front Side Electrical part Liquid side (Flare 6.35) Gas side...
Page 28: Wiring Diagram
5. WIRING DIAGRAM (For 05k, 07k) P201 P202 CN65 3 (RED) P203 Compressor Outdoor Control P.C. Board CN31 (WHI) Fuse WP-043 Fuse 250V T3.15A 3 250V DC Fan Motor Protection Protection Ground CN71 Ground (WHI) CN61 CN62 CN63 CN64 CN51 CN52 CN72 CN73 (WHI) (WHI) (YEL) (WHI) (BLU)
Page 29 (For 10k, 13k) P201 P202 CN65 3 (RED) P203 Compressor Outdoor Control P.C. Board CN31 (WHI) Fuse WP-043 Fuse 250V T3.15A 3 250V DC Fan Motor Protection Protection Ground Ground CN71 (WHI) CN61 CN62 CN63 CN64 CN51 CN52 CN72 CN73 (WHI) (WHI) (YEL) (WHI) (BLU) (GRN) (YEL) (WHI)
Page 30 (For 16k, 18k) P201 P202 CN65 3 (RED) P203 Compressor Outdoor Control P.C. Board CN31 (WHI) Fuse WP-043 Fuse 250V T3.15A 3 250V DC Fan Motor Protection Protection Ground CN71 Ground (WHI) CN61 CN62 CN63 CN64 CN51 CN52 CN72 CN73 (WHI) (WHI) (YEL) (WHI) (BLU) (GRN) (YEL) (WHI)
Page 31 (For 24k) Dyna-Doctor 6 CN01 WP-523 1 2 3 4 5 6 (WHI) Dyna 5 or 6 1 2 3 4 5 6 CN02 P.C. Board (WHI) 6 P200 1 2 3 4 5 6 1 2 3 4 5 6 CN73 CN65 CN74 CN72 CN70...
Page 32: Specifications Of Electrical Parts
6. SPECIFICATIONS OF ELECTRICAL PARTS 6-1. Indoor Unit Parts name Type name Specifications 05k, 07k, 10k, 13k SJM-240-25 AC 220-240V, 25W Fan Motor 16k, 18k, 24k WDF-340-30CA DC 280-340V, 42W Room temp. sensor (TA-sensor) 10kΩ at 25°C Heat exchanger temp. sensor (TC-sensor) 10kΩ...
Page 33: Refrigerant Cycle Diagram
7. REFRIGERANT CYCLE DIAGRAM 7-1. Refrigerant Cycle Diagram (05k) Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 10m Min. : 2m Pressure measurement Changeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape...
Page 34 (07k) Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 10m Min. : 2m Pressure measurement Chargeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia.
Page 35 (10k) Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 10m Min. : 2m Pressure measurement Changeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia.
Page 36 (13k) Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 10m Min. : 2m Pressure measurement Changeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia.
Page 37 (16k) Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 15m Min. : 2m Pressure measurement Changeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia.
Page 38 (18k) Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Max. : 15m Min. : 2m Pressure measurement Changeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia.
Page 39 (24k) Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan : 15m Max. Min. : 2m Pressure measurement Chargeless : 10m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia.
Page 40: Operation Data
7-2. Operation Data <Cooling> Temperature Heat exchanger Model name Standard Indoor Outdoor Compressor Connecting condition(°C) pipe temp. RAS- pressure fan mode fan mode revolution piping Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps) High 27/19 35/24 1.2 to 1.3 High 16 to 17 44 to 45...
Page 41: Control Block Diagram
8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit Indoor Unit Control Panel M.C.U Functions Heat Exchanger Sensor Operation • Louver Control Display • 3-minute Delay at Restart for Compressor Temperature Sensor Timer Display • Motor Revolution Control Infrared Rays Signal Receiver Wireless adapter Display •...
Page 42: Outdoor Unit (Inverter Assembly)
8-2. Outdoor Unit (Inverter Assembly) (For 05k, 07k, 10k, 13k, 16, 18k) - 42 -...
Page 43 (For 24k) - 43 -...
Page 44: 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 conditioner. Its system can control the speed of • Over-current detection and prevention operation to compressor motor according to load.
Page 45 9-2. Operation Description 1. Basic operation ...................... 1. Operation control ....................2. Cooling/Heating operation ................3. AUTO operation ....................4. DRY operation ....................2. Indoor fan motor control ..................3. Outdoor fan motor control ..................4. Capacity control ..................... 5. Current release control ..................6.
Page 46: Basic Operation
Item Operation flow and applicable data, etc. Description 1. Basic 1. Operation control operation Receiving the user’s operation condition setup, the operation statuses of indoor/outdoor units are controlled. 1) The operation conditions are selected by the remote controller as shown in the below. 2) A signal is sent by ON button of the remote controller.
Page 47: Cooling/Heating Operation
Item Operation flow and applicable data, etc. Description 1. Basic 2. Cooling/Heating operation operation The operations are performed in the following parts by controls according to cooling/heating conditions. 1) Receiving the operation ON signal of the remote controller, the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit.
Page 48 Item Operation flow and applicable data, etc. Description 2. Indoor fan <In cooling operation> motor control (This operation controls the fan speed at indoor unit side.) * Symbols The indoor fan (cross flow fan) is operated by the phase- : Ultra High control induction motor.
Page 49: Indoor Fan Motor Control
Item Operation flow and applicable data, etc. Description 2. Indoor fan motor control Fan speed level Mode Cooling Heating Cooling Heating Cool Heat Fan speed Air flow rate Fan speed Air flow rate Fan speed Air flow rate Fan speed Air flow rate (rpm) (rpm)
Page 50 Item Operation flow and applicable data, etc. Description 2. Indoor fan <In heating operation> 1) When setting the fan speed to L, motor control L+, M, M+ or H on the remote controller, the operation is per- formed with the constant speed HEAT ON shown in Fig.
Page 51: 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 52: Capacity Control
Item Operation flow and applicable data, etc. Description 4. Capacity The cooling or heating capacity depending on the load is 1) The difference between set control adjusted. temperature on remote controller (Ts) and room temperature (Ta) According to difference between the setup value of is calculated.
Page 53: Current Release Control
Item Operation flow and applicable data, etc. Description 5. Current release This function prevents troubles on the electronic parts of the 1) The input current of the outdoor control compressor driving inverter. unit is detected in the inverter section of the outdoor unit. This function also controls drive circuit of the compressor speed so that electric power of the compressor drive circuit 2) According to the detected...
Page 54: Release Protective Control By Temperature Of Indoor Heat Exchanger
Item Operation flow and applicable data, etc. Description 6. Release protective <In cooling/dry operation> 1) When temperature of the indoor control by tempera- heat exchanger drops below 5°C, (Prevent-freezing control for indoor heat exchanger) ture of indoor heat the compressor speed is In cooling/dry operation, the sensor of indoor heat exchanger reduced.
Page 55: Defrost Control (Only In Heating Operation)
Item Operation flow and applicable data, etc. Description 7. Defrost control (This function removes frost adhered to the outdoor The necessity of defrost operation is (Only in heating heat exchanger.) detected by the outdoor heat exchanger temperature. The conditions to detect the operation) The temperature sensor of the outdoor heat ex- necessity of defrost operation differ in A,...
Page 56: Louver Control
Item Operation flow and applicable data, etc. Description 8. Louver control This function controls the air direction of the indoor unit. 1) Louver • The position is automatically controlled according to the operation position mode (COOL/HEAT). • The set louver position is stored in memory by the microcomputer, and the louver returns to the stored position when the next operation is performed.
Page 57: Eco Operation
Item Operation flow and applicable data, etc. Description 9. ECO When pressing [ECO] button on the remote controller, a <Cooling operation> operation Economic operation is performed. 1) The control target temperature <Cooling operation> increase 0.5ºC per hour up to 2ºC This function operates the air conditioner with the difference starting from the set temperature between the set and the room temperature as shown in the...
Page 58: Temporary Operation
Item Operation flow and applicable data, etc. Description 10. Temporary Pressing [RESET] button starts the temporary 1) When pressing [RESET] button, the operation operation of [AUTO] operation. When keeping temporary [AUTO] operation starts. [RESET] button pressed for 10 seconds or more, the 2) When keeping [RESET] button pressed temporary [COOL] operation is performed.
Page 59: Self-Cleaning Function
Item Operation flow and applicable data, etc. Description 13. Self-Cleaning 1. Purpose function The Self-Cleaning operation is to minimize the growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean. Unit now performing cooling or dry operation Self-Cleaning operation When the cooling or dry operation shuts...
Page 60 Item Operation flow and applicable data, etc. Description 13. Self-Cleaning function 13-1-1. Self-Cleaning diagram Operation display FCU fan rpm is depend on presetting. (500RPM) FCU louver OPEN OPEN (12.7º) CLOSE ON or OFF ON or OFF Timer display depend on presetting of timer function. depend on presetting of timer function.
Page 61: Remote-A Or B Selection
Item Operation flow and applicable data, etc. Description 1. Purpose 14. Remote-A or B Setting the remote controller This operation is to operate only one selection To separate using of remote controller for each indoor unit using one remote controller. indoor unit in case of 2 air conditioner are installed nearly.
Page 62: Sound Level
Item Operation flow and applicable data,etc Description 16. Silent Silent button on remote controller is pressed. This function is used when the user need Operation Silent 1: to keep silent at outdoor side. It is limit Cooling/heating capacity is limited maximum for maximum compressor speed and CDU 70% of rated.
Page 63: Quiet Mode
Item Operation flow and applicable data,etc Description 18. QUIET mode When the "Quiet mode" selected from [ QUIET ] button; Quiet mode is the system which, control the The fan of the indoor unit will be restricted the revolving speed of indoor fan to work revolving speed at speed UL.
Page 64: Comfort Sleep Mode
Item Operation flow and applicable data, etc. Description 20. COMFORT Cooling mode The principles of comfort sleep mode are: SLEEP mode • Quietness for more comfortable. When • The preset temperature will increase as room temperature reach setting temperature show on ECO operation (Item No. 9) •...
Page 65: Short Timer
Item Operation flow and applicable data, etc. Description 22. Short Timer In the normal condition, after switching one circuit Purpose breaker, 3-minute delay time for compressor and To start the unit immediately for the purpose of 1 hour for plasma air purifier are set for the testing, trial...etc, short timer can be used.
Page 66: 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 set to work when shipped from the factory.
Page 67: How To Set The Auto Restart Function
9-3-2. How to Set the Auto Restart Function To set the auto restart function, proceed as follows: The power supply to the unit must be on ; the function will not set if the power is off. Press the [RESET] button located in the center of the front panel continuously for three seconds. The unit receives the signal and beeps three times.
Page 68: Remote Controller And Its Fuctions
9-4. Remote controller and Its Functions 9-4-1. Parts Name of Remote Controller Infrared signal emitter Memory and Preset button Temperature button Start/Stop button Swing louver button Mode select button Fan speed button Silent operation button Quiet button Set louver button High power button Eco button 8°C Heating operation button...
Page 69: Automatic Operation
3. Remote controller reset 1. Push by tip of the pencil. 2. Remove the batteries. Press with tip of the pencil. 3. Press 4. Insert the batteries. 4. AUTOMATIC OPERATION 1. Press : Select Auto A. 2. Press : Set the desired temperature. Min 17°C, Max 30°C, 3.
Page 70: Eco Operation
8. ECO OPERATION To automatically control room temperature to save energy (except in DRY and FAN ONLY mode) Press : Start and stop the operation. Note: • Cooling operation; the set temperature will increase automatically 1 degree/hour for 2 hours (maximum 2 degrees increase). •...
Page 71 12. PRESET OPERATION Set your preferred operation for future use. The setting will be memorized by the unit for future operation (except air flow direction). 1. Select your preferred operation. 2. Press and hold for 3 seconds to memorize th e setting. The mark displays.
Page 72: Silent Operation
17. SILENT OPERATION Keep outdoor unit operating silently to ensure either yourself or neighborhood will have a tight sleep in nighttime. By this feature, the heating (or cooling) capacity will be optimized to deliver such silent experience. The silent operation can be selected from one of two purposes (Silent 1 and Silent 2).
Page 73: Name And Functions Of Indications On Remote Controller
9-4-3. Name and Functions of Indications on Remote Controller 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 74: Installation Procedure
10. INSTALLATION PROCEDURE 10-1. Installation Diagram of Indoor and Outdoor Units 05k, 07k, 10k, 13k 16k, 18k For the rear left, bottom left and left piping Wall Hook Installation plate Cut out a piece of SPACER from indoor unit packaging box, roll it and insert between the indoor unit and wall to tilt the indoor unit for better operation.
Page 75: Parts Name
10-2. Installation 10-2-1. Optional installation parts Part code Parts name Q’ty Refrigerant piping Liquid side : Ø6.35 mm Gas side : Ø9.52 mm (For 05k, 07k, 10k, 13k) each 12.70 mm (For 16k, 18k, 24k) Pipe insulating material (polyethylene foam, 6 mm thick) (For 05k, 07k, 10k, 13k) (polyethylene foam, 8 mm thick) (For 16k, 18k, 24k)
Page 76: Accessory And Installation Parts
10-2-2. Accessory and installation parts INDOOR Part name Q’ty No. Part name Q’ty No. Part name Q’ty Installation plate Mounting screw Installation and Owner’s Manual Wireless remote controller Screw Safety Manual (For 24k model only) Battery B Label R32 Information Servicing Manual OUTDOOR Part name Q’ty...
Page 77 10-2-3. Installation/Servicing Tools Changes in the product and components In the case of an air conditioner using R32, 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 78: Indoor Unit
10-3. Indoor Unit 10-3-1. Installation place 10-3-2. Cutting a hole and mounting installation • A place which provides the spaces around the indoor Plate unit as shown in the diagram • A place where there are no obstacles near the air inlet <Cutting a hole>...
Page 79 <Mounting the installation plate> For 16k, 18k (Unit : mm) For 05k, 07k, 10k, 13k Indoor unit outline Hook Hook (Unit : mm) Air inlet grille Distance between Pipe hole Hook Hook Pipe hole bottom of indoor unit Thread Drain hose position Drain hose position to maximum horizontal Mounting screw...
Page 80: Piping And Drain Hose Installation
1. Die-cutting front panel slit Cut out the slit on the left or right side of the front panel Installation plate (Keep horizontal direction.) for the left or right connection and the slit on the bottom left or right side of the front panel for the bottom left or Anchor bolt right connection with a pair of nippers.
Page 81 <Left-hand connection with piping> 2) Fi rmly insert drain cap. Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe is Do not apply lubricating oil laid exceeding 43 mm above the wall surface, the (refrigerant machine oil) when inserting the drain indoor unit may unstably be set on the wall.
Page 82: Indoor Unit Fixing
10-3-4. Indoor unit fixing 10-3-5. Drainage Pass the pipe through the hole in the wall, and hook 1. Run the drain hose sloped downwards. the indoor unit on the installation plate at the upper hooks. NOTE Swing the indoor unit to right and left to confirm that •...
Page 83: Outdoor Unit
10-4. Outdoor Unit 10-4-2. Precautions about installation in Regions 10-4-1. Installation place with Snowfall and Cold Temperatures • A place which provides the spaces around the outdoor unit as shown in the diagram. • Drain the water from all the drain holes directly. •...
Page 84: Draining The Water
Draining the Water 10-4-3. Refrigerant piping connection • Holes are provided on the base plate of the <Flaring> outdoor unit to ensure that the defrost water 1. Cut the pipe with a pipe cutter. produced during heating operations is drained off efficiently.
Page 85: Air Purge
Evacuating <Tightening connection> Align the centers of the connecting pipes and tighten After the piping has been connected to the indoor unit, the flare nut as far as possible with your fingers. Then you can perform the air purge together at once. tighten the nut with a spanner and torque wrench as shown in the figure.
Page 86: Vacuum Pump
• Securely tighten the valve cap with torque in the CAUTION following table • KEEP IMPORTANT 7 POINTS FOR PIPING WORK Take away dust and moisture (inside of the Cap Size (H) Torque connecting pipes). 14~18 N.m Tighten the connections (between pipes and unit). H17 - H19 Valve Rod (1.4 to 1.8 kgf·m)
Page 87: Electrical Works
10-5. Electrical works Model Power source 50Hz, 220 – 240V / 60Hz, 220 – 230V Single phase Maximum running current 6.20A 6.20A 7.50A 7.50A 9.30A 9.30A 12.0A Circuit breaker rating H07RN-F or 60245 IEC66 Power supply cable H07RN-F or 60245 IEC66 (1.0 mm² or more) (1.5 mm²...
Page 88: Power Supply And Connecting Cable Connection
10-5-2. Power Supply and Connecting Cable Connection Power Supply Input at Outdoor Unit Terminal Block Indoor Unit Outdoor Unit Stripping length of the Connecting cable Connecting cable 1 2 3 connect to 1 2 3 connecting cable Terminal block Earth line 50 mm 10 mm Earth line...
Page 89 10-6. Others Note : 1. Repeat previous step to reset Remote Controller to be A. 10-6-1 . Gas leak test Remote Controller A have not “A” display. Default setting of Remote Controller from factory is A. Check places for indoor unit (Flarenut connection) F ig.
Page 90: 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 91 CAUTION A high voltage (equivalent to the supply voltage) is also energized to ground through the sensors, PMV and other low-voltage circuits. The sensor leads and other wires are covered with insulated tubes for protection. Nevertheless, care must be taken to ensure that these wires are not pinched.
Page 92 K 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 93 < Discharging method > (For 24k) 1. Remove the inverter cover (plating) by opening four mounting claws. 2. As shown below, connect the discharge resistance (approx. 100Ω40W) or plug of the soldering iron to voltage between + – terminals of the C10, C11 (“WARNING ELECTRIC SHOCK” is indicated.) electrolytic capacitor (500µF/450V) on P.C.
Page 94 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 95 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 96: 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 condi- tion and indicates the information of the self-diagnosis on the display of the remote controller with the check codes.
Page 97 11-4-2. Caution at Servicing 1. After using the service mode of remote controller finished, press the [ ] button to reset the remote controller to normal function. 2. After finished the diagnosis by the remote controller, turn OFF power supply and turn its ON again to reset the air conditioner to normal operation.
Page 98 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Serial signal 1) Defective wiring of the Indoor unit Flashes when 1) to 3) The outdoor unit never operate. and connecting connecting cable or operates...
Page 99 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Outdoor P.C. Current on inverter circuit All OFF Flashes after 1. Remove connecting lead wire of the board is over limit in short time.
Page 100 Block distinction Operation of diagnosis function Action and Judgment Check Check Display flashing Block Cause of operation conditioner code code error status Outdoor P.C. Compressor drive output error. All OFF Flashes after 1. Check installation conditions such as board (Relation of voltage, current error is detected packed valve opening, refrigerant 8 times*.
Page 101 Block distinction Operation of diagnosis function Action and Judgment Check Check Display Block Cause of operation conditioner code code flashing error status The others Compressor does not rotate. All OFF Flashes after 1. Remove connecting lead wire of the (including Because of missed wiring, error is detected compressor, and operate again.
Page 102 Block distinction Operation of diagnosis function Action and Judgment Check Check Display Block Cause of operation conditioner code code flashing error status Return signal of the outdoor Indoor unit Flashes when 1. . Check power supply (Rate +10%) The others operates error is detected unit has been sent when...
Page 103 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 104 (For 16k~24k) Operation Check Item Considerable principle cause Turn off power supply once, and Measures 5 second later, turn it on again. Item by symptoms Is OPERATION indicator flashing? Is it possible to turn on Does transmission mark A/C by pushing on remote controller flash Remote controller is defective.
Page 105 (2) Only the indoor motor fan does not operate <Primary check> (For 05k~13k) 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.) Shut off the power supply once.
Page 106 (For 16k~24k) 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 107 Is it possible to Does check display Replace change airflow level remote on remote show high? to “HIGH”? Change the new PC Replace board. Does fan speed motor change? Fan motor operates normally. Is it possible to Does check cross-flow Replace bearing rotate cross-flow fan by fan bearing normal...
Page 108: Resistance Value
(3) Indoor fan motor automatically starts to rotate by turning on power supply (For AC fan motor) (For 05k~13k) <Inspection procedure> 1. Remove the front panel. (Remove 2 screws.) 2. Remove the cover of the fan motor lead wires. 3. Check AC voltage with CN31 connector while the fan motor is rotating. NOTE : •...
Page 109 [For DC fan motor] (For 16k~24k) <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 110 (4) Troubleshooting for remote controller <Primary check> Check that A or B selected on the main unit is matched with A or B selected on the remote controller. There is no beep from the indoor unit Push the [ ] button. The OPERATION lamp of the air conditioner main unit does not light Does the transmission...
Page 111 11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire) (1) Outdoor unit does not operate 1) Is the voltage between of the indoor terminal block varied? Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow- ing diagram.
Page 112 11-6. How to Check Simple the Main Parts <Check procedure> Gas leakage, Discharge temp. error, disconnection of TS/TC gas leakage sensors (Check code 02, 1C) (Check code 03, 1E) Does this model have P.M.V. or not? Valve drive check Is coil of the pulse motor valve Set it correctly.
Page 113: How To Diagnose Trouble In Outdoor Unit
11-7. How to Diagnose Trouble in Outdoor Unit 11-7-1. Summarized Inner Diagnosis of Inverter Assembly Table 11-7-1 Diagnosis/Process flowchart Item Contents Summary Preparation Turn “OFF” the power supply breaker, and remove 3P Remove connector connector which connects of compressor. inverter and compressor. If fuse was blown, be sure to check the electrolytic •...
Page 114: How To Check Simply The Main Parts
Diagnosis/Process flowchart Item Contents Summary Check Check winding resistance between phases of compres- sor, and resistance between outdoor frames by using a tester. → OK if 20MΩ or more • Is not grounded. Replace control board assembly.  → OK if about •...
Page 115 (3) Check procedures (For 05k~13k) Table 11-8-1 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 116 (For 16k~24k) Table 11-8-1 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 117: Sensor Characteristic Table
11-8-2. P.C.Board Layout (For 05k~13k) +12V [1] Sensor characteristic table : Discharge temp. sensor : Room temp. sensor TC, TCJ : Heat exchanger temp. sensor TA, TC, TO, TCJ, TE : Outdoor temp. sensor : Outdoor heat exchanger temp Temperature (˚C) - 117 -...
Page 118 (For 16k~24k) CN21 CN36 CN32 Main Electrolyte Fan Motor Stepping motor HA1 Connector Fuse Capacitor (Wireless Adapter) Connector DB01 Diode Bridge Rectifier CN30 Power supply Input terminal (Line) Fuse CN10 Display R-03 Connector Resistor L-01 Line Filter CN31 CN63(Red) Power supply TCJ Sensor Input terminal Connector...
Page 119 11-8-3. Indoor Unit (Other Parts) Part name Checking procedure Room temp. (TA) sensor Disconnect the connector and measure the resistance value with tester. Heat exchanger (TC, TCJ) (Normal temp.) sensor Temperature 10°C 2 ° 0 C 2 ° 5 C 3 °...
Page 120: Checking Procedure
11-8-5. Checking Method for Each Part Part name Checking procedure 1. Turn OFF the power supply breaker. Electrolytic capacitor 2. Discharge all three capacitors completely. 3. Check that safety valve at the bottom of capacitor is not broken. 4. Check that vessel is not swollen or exploded. 5.
Page 121: How To Simply Judge Whether Outdoor Fan Motor Is Good Or Bad
11-9. 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 122: 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 123 Part name Procedures Remarks Front Panel 1) Stop operation of the air conditioner and turn Front panel For 05, 07, 10, 13k off its main power supply. <For 05, 07, 10, 13k> Open the air inlet grille upward. <For 16, 18, 24k> Open two screw caps.
Page 124 Part name Procedures Remarks Electric part box assembly Earth screw (Continue) TC sensor or TCJ sensor Earth line Washer Sensor holder Connectors 4) Remove the earth screw and earth line from evaporator. Screw 5) Pull out TC and TCJ sensor from sensor Electric part cover holder of the evaporator.
Page 125: Fan Motor
Part name Procedures Remarks Fan motor 1) Follow the procedure item 3 and 4 . Cross flow fan 2) Loosen the set screw of the cross flow fan. Cross flow fan Cross flow fan Body back Body back 5.0 mm 3.5 mm Set screw Fan motor Set screw Fan motor...
Page 126 Part name Procedures Remarks Drain pan 1) Follow the procedure item 3 . assembly 2) Remove screw holding the electric part cover. Connectors P.C.board Louver motor connector Screw Electric part cover 3) Disconnect the louver motor connector (5P) from P.C. board assembly. 4) Remove fixing screws of the unit display and remove unit display.
Page 127 Part name Procedures Remarks Drain pan <To re-installation> assembly - Press the drain pan into the back body - Please make sure ribs of drain pan in left and right side must be install to lock position. - Press the center arm of drain pan to back body.
Page 128 Part name Procedures Remarks Drain hose 1) Follow the procedure item 3 . 2) The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose. 3) When removing the drain hose, be careful of any sharp edges of steel plate.
Page 129 Part name Procedures Remarks Bearing base 1) Follow the procedure item 3 . <05, 07, 10, 13k> Remove 2 fixing screws from the bearing base, then remove it from the main unit. Heat exchanger Screw Back body Cross flow fan Bearing base Bearing base <16, 18k>...
Page 130 Part name Procedures Remarks Cross flow fan 1) Follow the procedure item 3 , 7 and 2) Loosen the set screw of the cross flow fan. Cross flow fan Vertical louver Hexagon screw driver 3) Lift up the heat exchanger follow the figure. Heat exchanger Pull out the left hand side until the cross flow fan is released from the shaft of the fan motor...
Page 131 Part name Procedures Remarks Heat exchanger 1) Follow the procedure item 3 and 4 . (Evaporator) <05, 07, 10, 13k> - Remove 2 fixing screws at the left side of the heat exchanger. - Remove fixing screw at the upper right side of the heat exchanger.
Page 132 Part name Procedures Remarks Heat exchanger <24k> (Evaporator) - Remove 3 fixing screws at the upper left Screw side of the heat exchanger. Pipe holder - Remove 2 fixing screws at the upper and right side of the heat exchanger. - Remove the pipe holder from the rear side of the main unit.
Page 133 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 134 12-2. Outdoor Unit (RAS-05, 07, 10, 13B2AVG-E2) Part name Procedures Remarks Common 1. Detachment 1) Stop operation of the air conditioner, and procedure turn off the main switch and breaker of the air conditioner. 2) Remove the valve cover. (ST2T∅4 x 10L 1 pc) •...
Page 135 Part name Procedure Remarks Inverter module cover 1) Perform work of item 1 in Inverter ƒ assembly 2) Remove screw (ST2TØ4×10L 2 pcs.) of the upper part of the front cabinet. • Disconnect connectors all connector on P.C. board. •...
Page 136 Part name Procedures Remarks „ Fan motor 1) Perform work of item 1 of 1 and 1 of 2. 2) Remove the flange nut fixing the fan motor Fan motor and the propeller fan. Propeller fan • Flange nut is loosened by turning clockwise.
Page 137 Part name Procedures Remarks Fan guard 1. Detachment 1) Perform work of item 1 of 1 and 1 of 2. Requirement: Perform the work on a corrugated cardboard, cloth, etc. to prevent scratches to the product. 2) Remove the front cabinet, and place it down so that the fan guard side faces downwards.
Page 138 Part name Procedure Remarks Control board 1. Disconnect the leads and connectors connected to assembly the other parts from the control board assembly. 1) Leads • 3 leads (black, white, orange) connected to terminal block. • Lead connected to compressor : Disconnect the connector (3P).
Page 139 Outdoor unit (RAS-16, 18B2AVG-E2) Remarks Part name Procedures Common procedure 1. Detachment NOTE 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 conditioner.
Page 140 Part name Procedures Remarks 1. Detachment Front cabinet 1) Perform step 1 in 1. 2) Remove the ﬁxing screws (ST2TØ4 × 10L Front cabinet 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST2TØ4 × 10L 4 pcs.) used to secure the front cabinet at the bottom, and the ﬁxing screws (ST2TØ4 ×...
Page 141 Part name Procedures Remarks 1) Perform work of item 1 in ƒ Inverter Inverter module cover 2) Remove screw (ST2TØ4×10L 2 pcs.) of the assembly upper part of the front cabinet. • Disconnect connectors all connector on P.C. board. •...
Page 142 Remarks Part name Procedures 1. Disconnect the leads and connectors connected Control board assembly to the other parts from the control board assembly. 1) Leads • 3 leads (black, white, orange) connected to terminal block. • Lead connected to compressor : Disconnect the connector (3P).
Page 143 Part name Procedures Remarks 1. Side cabinet (right) Side cabinet 1) Perform step 1 in 2 and all the steps in 3. 2) Remove the ﬁxing screw (ST2TØ4 × 10L 4 pcs.) used for securing the side cabinet to the bottom plate and valve ﬁxing panel. 2.
Page 144 Part name Procedures Remarks 1) Perform work of item 1 of 1 and 2, 3, 4, 5. Compressor 2) Extract refrigerant gas. 3) Remove the partition board. (ST2TØ4 × 10L 3 pcs.) 4) Remove the sound-insulation material. 5) Remove terminal cover of the compressor, and disconnect lead wire of the compressor from Compressor the terminal.
Page 145 Part name Procedures Remarks TS sensor (Suction pipe temperature sensor) • Attachment Install the sensor onto the straight pipe part of the suction pipe. Be careful for the lead direction of the sensor. TD sensor (Discharge pipe temperature sensor) • Attachment With its leads pointed upward, install the sensor onto the vertical straight pipe part of the discharge pipe.
Page 146 Outdoor unit (RAS-24B2AVG-E2) Remarks Part name Procedures 1. Detachment Common procedure NOTE Upper cabinet Wear gloves for this job. Otherwise, you may injure your hands on the parts, etc. 1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner.
Page 147 Remarks Part name Procedures 1. Detachment Front cabinet 1) Perform step 1 in 1. 2) Remove the fixing screws (ST2TØ4 × 10L 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST2TØ4 × 10L 4 pcs.) used to secure the front cabinet at the bottom, and the fixing screws (ST2TØ4 ×...
Page 148 Part name Procedures Remarks Inverter assembly 1) Perform work of item 1 in 1. 2) Remove screw (ST2TØ4 × 10L 2 pcs.) of the upper part of the front cabinet. • If removing the inverter cover in this condition, P.C. board can be checked. •...
Page 149 Part name Procedures Remarks 1. Disconnect the leads and connectors connected to the other Control board assembly parts from the control board assembly. 1) Leads CN72 CN60 • 3 leads (black, white, orange) connected to terminal block. CN62 Lead connected to compressor : Disconnect the CN61 •...
Page 150 Part name Procedures Remarks Side cabinet 1. Side cabinet (right) 1) Perform step 1 in 2 and all the steps in 3. 2) Remove the fixing screw (ST2TØ4 × 10L 4 pcs.) used for securing the side cabinet to the bottom plate and valve fixing panel 2.
Page 151 Part name Procedures Remarks Compressor 1) Perform work of item 1 of 1 and 2, 3, 4, 5. 2) Extract refrigerant gas. 3) Remove the partition board. (ST2TØ4 × 10L 3 pcs.) 4) Remove the sound-insulation material. 5) Remove terminal cover of the compressor, and disconnect lead wire of the compressor from the terminal.
Page 152 Part name Procedures Remarks TE sensor (outdoor heat exchanging temperature sensor) • Attachment Install the sensor onto the straight pipe part of the condenser output pipe. TD sensor (Discharge pipe temperature sensor) • Attachment With its leads pointed upward, install the sensor onto the vertical straight pipe part of the discharge pipe.
Page 153: Exploded Views And Parts List
13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit RAS-B05, 07, 10, 13B2KV2G-E ELECTRICAL PARTS ASSEMBLY Location Part Location Part Description Description 43T00933 FRONT PANEL ASSY 43T39369 MOTOR BAND FRONT 43T09663 GRILLE OF AIR INLET ASSY 43T44878 REFRIGERANT CYCLE ASSEMBLY 43T80374 AIR FILTER (FOR RAS-B05,07B2KV2G-E)
Page 154 RAS-B05, 07, 10, 13B2KVG-E2 ELECTRICAL PARTS ASSEMBLY Location Part Location Part Description Description 43T00933 FRONT PANEL ASSY 43T39369 MOTOR BAND FRONT 43T09612 GRILLE OF AIR INLET ASSY 43T44878 REFRIGERANT CYCLE ASSEMBLY 43T80374 AIR FILTER (FOR RAS-B05,07B2KVG-E2) 43T03426 BACK BODY ASSY 43T44879 REFRIGERANT CYCLE ASSEMBLY 43T22399...
Page 155 RAS-B16, 18B2KV2G-E (B2KVG-E2) (For B2KV2G-E) ELECTRICAL PARTS ASSEMBLY (For B2KVG-E2) Location Part Location Part Description Description 43T00863 FRONT PANEL ASSY 43T39441 MOTOR BAND BACK ASSY 43T09613 GRILLE OF AIR INLET ASSY 43T39369 MOTOR BAND FRONT (FOR RAS-B16,18B2KVG-E2) 43T44880 REFRIGERANT CYCLE ASSEMBLY 43T09664 GRILLE OF AIR INLET ASSY (FOR RAS-B16B2KV2G-E,B2KVG-E2)
Page 156 RAS-B24B2KV2G-E (B2KVG-E2) (For B2KV2G-E) ELECTRICAL PARTS ASSEMBLY (For B2KVG-E2) Location Part Location Part Description Description 43T00882 FRONT PANEL ASSY 43T39467 BASE BEARING 43T00715 CAP SCREW 43T22312 BEARING ASSY, MOLD 43T09614 GRILLE OF AIR INLET ASSY 43T39383 MOTOR COVER (FOR RAS-B24B2KVG-E2) 43T39455 MOTOR BAND BACK ASSY 43T09665...
Page 157 (FOR RAS-B10B2KV2G-E, B2KVG-E2) 43T50413 TA-SENSOR 43TNV611 PC BOARD (WP-050) 43T62340 CORD-CLAMP (FOR RAS-B13B2KV2G-E, B2KVG-E2) 43TNV623 PC BOARD ASSY:WRS-LED 43T60502 HOUSING-WiFi 43TNV608 PC BOARD (WP-050) 43T60605 TEMPERATURE SENSOR (FOR RAS-B05B2KV2G-E, B2KVG-E2) 43TNV609 PC BOARD (WP-050) (FOR RAS-B07B2KV2G-E, B2KVG-E2) - 157 -...
Page 158 RAS-B16, 18, 24B2KV2G-E (B2KVG-E2) Location Part Location Part Description Description 43T50393 TEMPERATURE SENSOR 43TNV613 PC BOARD (WP-048) (FOR RAS-B24B2KV2G-E,B2KVG-E2) (FOR RAS-B16B2KV2G-E,B2KVG-E2) 43T50394 TEMPERATURE SENSOR 43TNV614 PC BOARD (WP-048) (FOR RAS-B16,18B2KV2G-E,B2KVG-E2) (FOR RAS-B18B2KV2G-E,B2KVG-E2) 43T60556 TERMINAL-3P 43TNV615 PC BOARD (WP-048) 43T50413 TA-SENSOR (FOR RAS-B24B2KV2G-E,B2KVG-E2) 43T62340 CORD-CLAMP...
Page 159 13-3. Outdoor Unit RAS-05, 07, 10, 13B2AVG-E2 30 (L Shape) 30 (I Shape) 37,41 36,40 Location Part Location Part Description Description 43T42388 BASE PLATE ASSEMBLY 43T41621 COMPRESSOR 43T00733 UPPER CABINET ASSEMBLY (FOR RAS-05,07B2AVG-E2) (FOR RAS-05,07,10B2AVG-E2) 43T41622 COMPRESSOR 43T00966 UPPER CABINET ASSEMBLY (FOR RAS-10,13B2AVG-E2) (FOR RAS-13B2AVG-E2) 43T47403 BONNET, 6.35 DIA 43T00682...
Page 160 RAS-16, 18, 24B2AVG-E2 30 (2 Row) 30 (1 Row) 36,40 37,41 Location Part Location Part Description Description 43T42403 BASE PLATE ASSEMBLY 43T41623 COMPRESSOR 43T00459 LEFT CABINET (FOR RAS-16,18B2AVG-E2) 43T00690 RIGHT CABINET ASSEMBLY 43T41624 COMPRESSOR 43T00735 UPPER CABINET ASSEMBLY (FOR RAS-24B2AVG-E2) 43T00688 FRONT CABINET ASSEMBLY 43T47403 BONNET, 6.35 DIA (FOR RAS-24B2AVG-E2)
Page 161 13-4. Outdoor Unit (Part-E) RAS-05, 07, 10, 13B2AVG-E2 TOSENSOR TESENSOR TDSENSOR 710 HOLDER SENSOR Location Part Location Part Description Description 43T67311 HEATSINK 43T60555 TERMINAL-5P 43TNV616 PC BOARD (WP-043) 43T50334 TEMPERATURE SENSOR (FOR RAS-05B2AVG-E2) 43T50352 TEMPERATURE SENSOR 43TNV617 PC BOARD (WP-043) 43T50458 SENSOR-TA(TO) (FOR RAS-07B2AVG-E2) 43T95304...
Page 162 RAS-16, 18B2AVG-E2 TOSENSOR TESENSOR TDSENSOR 710 HOLDER SENSOR Location Part Location Part Description Description 43T67311 HEATSINK 43T50334 TEMPERATURE SENSOR 43TNV620 PC BOARD (WP-043) 43T50352 TEMPERATURE SENSOR (FOR RAS-16B2AVG-E2) 43T50458 SENSOR-TA(TO) 43TNV621 PC BOARD (WP-043) 43T95304 SPACER-KGES (FOR RAS-18B2AVG-E2) 43T63318 HOLDER SENSOR 43T60555 TERMINAL-5P - 162 -...
Page 163 RAS-24B2AVG-E2 TOSENSOR TESENSOR TDSENSOR 710 HOLDER SENSOR Location Part Location Part Description Description 43T67310 HEATSINK 43T50352 TEMPERATURE SENSOR 43TNV622 PC BOARD (WP-528) 43T50458 SENSOR-TA(TO) 43T60555 TERMINAL-5P 43T62313 PC PLATE BASE 43T50334 TEMPERATURE SENSOR 43T63318 HOLDER SENSOR - 163 -...
Page 164 CARRIER AIR CONDITIONING (THAILAND) CO., LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANGPATHUMTHANI, PATHUMTHANI 12000, THAILAND...

Toshiba RAS-B05B2KV2G-E Service Manual

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