Related Manuals for Toshiba RAS-10SKH-ES
Summary of Contents for Toshiba RAS-10SKH-ES
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Page 1: Service Manual
FILE NO. A00-9808 SERVICE MANUAL AIR-CONDITIONER SPLIT WALL TYPE RAS-10SKH-ES / RAS-10SAH-ES RAS-13SKH-ES / RAS-13SAH-ES PRINTED IN JAPAN, May.,1998 ToMo... -
Page 2: Table Of Contents
CONTENTS 1. SPECIFICATIONS .......................... 3 2. CONSTRUCTION VIEWS ......................5 2-1. Indoor Unit ............................5 2-2. Outdoor Unit ............................. 6 3. WIRING DIAGRAM ........................8 4. SPECIFICATIONS OF ELECTRICAL PARTS ................9 5. REFRIGERANT CYCLE DIAGRAM..................... 11 6. MICRO-COMPUTER BLOCK DIAGRAM ..................13 7. -
Page 3: Specifications
1. SPECIFICATIONS Model RAS-10SKH-ES/RAS-10SAH-ES RAS-13SKH-ES/RAS-13SAH-ES Item Cooling Heating Cooling Heating 220V 230V 240V 220V 230V 240V 220V 230V 240V 220V 230V 240V Capacity 2,65 2,68 2,70 3,00 3,05 3,10 3,45 3,50 3,50 4,05 Phase Single Power source 220/230/240 Power consumption... - Page 4 6°C Notes : *2 CHARGELESS RAS-10SKH-ES • No additional refrigerant required. • This air conditioner accepts a connection piping length of up to 10m and a head of up to 5m. • There is no need to add the refrigerant as long as the total length of the connection piping is up to 10m.
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Page 5: Construction Views
2. CONSTRUCTION VIEWS 2-1. Indoor Unit RAS-10SKH-ES RAS-13SKH-ES Heat exchanger Air inlet Air filter @@@@@@ PPPPPP @@@@@@ PPPPPP @@@@@@ PPPPPP Air outlet Knock out system Front panel Back body Hanger Drain hose (0,54m) Hanger Knock out system Connecting pipe (0,39m) Connecting pipe (0,49m) (Flare ø9,52) -
Page 6: Outdoor Unit
Liquid side (flare ø6,35) ø6 Hole ø11x14 Hole 8-ø6 Holes (For fixing the outdoor unit) Handle 4-ø11x14 Long holes (For anchor bolt ø8-ø10) Fan guard ø420 TOSHIBA Electric parts cover Service port View Inlet port 600 or more Inlet port 100 or more... - Page 7 RAS-13SAH-ES Detail Drawing Gas side (Flare ø9,52) Liquid side (Flare ø6,35) ø6 hole ø11x14 hole 8-ø6 hole ( (for fixing outdoor unit) ø25Drain outlet 6-ø11x14 hole (for ø8-ø10 anchor bolt) Handle Fan guard Electric parts cover...
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Page 8: Wiring Diagram
3. WIRING DIAGRAM Model Section A THERMAL FUSE RAS-10SKH-ES/10SAH-ES FAN MOTOR 77˚C × 2 220/230/240V ~ LOUVER MOTOR 50Hz MOTOR RAS-13SKH-ES/13SAH-ES 220/230/240V ~ 50Hz CN04 CN07 CN10 SG01 R109 MAIN P.C. BOARD R116 MCC-713 GRN&YEL VARISTOR IC04 F01 FUSE DB01... -
Page 9: Specifications Of Electrical Parts
4. SPECIFICATIONS OF ELECTRICAL PARTS 4-1. Indoor Unit RAS-10SKH-ES Parts name Type Specifications Fan motor (for indoor) TICF-35-19-3 Output (Rated) 19W, 2poles, 1phase, 220/230/240V, 50Hz Thermo sensor (microprocessor) 10kΩ at 25°C (TA-sensor) DC-DC transformer (T01) SWT-34 DC 390V, Secondary DC 35V, 12V, 7V... - Page 10 4-3. Indoor Unit RAS-13SKH-ES Parts name Type Specifications Fan motor (for indoor) TICF-35-19-3 DC 35V, 19W Thermo sensor (microprocessor) 10kΩ at 25°C (TA-sensor) DC-DC transformer (T01) SWT-34 DC 390V, Secondary DC 35V, 12V, 7V Microcomputer TMP87CK40F Power relay (RY01), DI1U Coil : DC 12V 75mA, Rated AC 250V 20A Common relay (RY02) Heat exchanger sensor...
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Page 11: Refrigerant Cycle Diagram
5. REFRIGERANT CYCLE DIAGRAM RAS-10SKH-ES/RAS-10SAH-ES Indoor unit Evaporator Cooling 0,39m 0,49m Heating (Connecting pipe) (Connecting pipe) ø9,52 ø6,35 Cross flow fan O.D.:9,52mm O.D.:6,35mm Packed valve Packed valve (ø9,52) (ø6,35) Heating Cooling 4-way valve Muffler Muffler Heating Cooling Compressor PA118X1T-4FZ Capillary tube ø0,8x400... - Page 12 RAS-13SKH-ES/RAS-13SAH-ES (Note) Indoor unit Maximum pipe length is 15m Maximum pipe head is 6m Heat exchanger Cooling 0,49m 0,39m Heating (Connecting pipe) (Connecting pipe) ø9,52 ø6,35 Cross flow fan O.D.:9,52mm O.D.:6,35mm Packed valve Packed valve (ø9,52) (ø6,35) Gas container connection (Reinstall etc.) Heating Cooling 4-way valve...
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Page 13: Micro-Computer Block Diagram
6. MICRO-COMPUTER BLOCK DIAGRAM – 13 –... -
Page 14: Operation Descriptions
2) When the FAN is set to LOW, MED, or HIGH, the indoor fan motor operates with a constant HIGH Air volume Indication of in volume as listed in Table 7-1-1. /hr) FAN SPEED RAS-10SKH-ES RAS-13SKH-ES AUTO Manual HIGH HIGH According LOW(+) -
Page 15: Dry Operation
7-2-1. Louver Control 7-3. DRY Operation (1) By pushing the SET button of the remote control (MODE of the remote control : DRY) during the operation, the louver can be set to the (1) Compressor 4-way valve, outdoor fan and desired position. -
Page 16: Heat Operation
7-4. HEAT Operation 7-4-1. Louver Control (1) By pushing the SET button of the remote control (MODE of the remote control : HEAT) during the operation, the louver can be set to the (1) Relays compressor 4-way valve, outdoor fan and desired position. -
Page 17: Auto Operation
7-5. AUTO Operation 7-5-1. Temporary Auto When the TEMPORARY button is pushed, the set (MODE of the remote control : AUTO) temperature is fixed at 24°C and controlled in accor- (1) One of the 3 modes, Cooling, Fan only and Heat- dance with the chart shown in Fig. -
Page 18: Econo. Mode
7-6. ECONO. Mode 7-7. Current Limit Control When the ECONO. button is pushed, during COOL, The microprocessor detects the input current so as to HEAT and AUTO operation, the OPERATION display prevent it exceeds a specified value by means of is turned off and the ECONO. -
Page 19: High-Temperature Limit Control (Heating Operation)
Control is performed as shown in Fig. 7-8-1. Control is performed as shown in Fig. 7-10-1 and Heat exchanger 7-10-2. temperature Compressor, (˚C) Outdoor fan RAS-10SKH-ES Heat exchanger temperature (˚C) Indoor fan speed According to the set position U.L. (Ultra Low) 1 ·····... -
Page 20: Defrost Operation
7-11. Defrost Operation minutes minutes minutes minutes During the heating operation, the outdoor heat exchanger temperature goes down and sometimes it is frozen. In this case, the air conditioner stops the heating operation and starts the defrost operation to melt ice. 7-11-1. -
Page 21: Auto Restart Function
7-12. Auto Restart Function 7-12-1. How to Set the Auto Restart To set the Auto Restart function, proceed as follows: This unit is equipped with an Automatic restarting Access the TEMPORARY button located in the lower facility which allows the unit to restart and resume the right hand corner beneath the hinged front panel of set operating conditions in the event of a power supply the indoor unit (please refer to section on PARTS... - Page 22 7-12-2. How to Cancel the Auto Restart The system will now be required to manually restart with the remote control after the main supply is turned To cancel the Auto Restart function, proceed as off. follows: Cancellation is carried out: Repe at th e set t i n g pro c ed u re : t h e un it w i ll acknowledge the instruction and bleep three times.
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Page 23: Installation Procedure
• Before doing the electrical work, attach an approved plug to the power supply cord. And make sure the equipment to be earthed. • Appliance shall be installed in accordance with national wiring requlations. If you detect any damage, do not install the unit. Contact your Toshiba dealer immediately. – 23 –... - Page 24 CAUTION • Exposure of unit or water or other moisture before installation will result in an electrical short. Do not store in a wet basement or expose to rain or water. • After unpacking the unit, examine it carefully for possible damage. •...
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Page 25: Installation Diagram Of Indoor And Outdoor Units
8-2. Installation Diagram of Indoor and Outdoor Units For installation of the indoor unit, use the paper pattern on the back. For the rear and left piping 3 Clip anchor Clip anchor Wall Hook Hook Front cabinet 1 Installation Insert the remote control holder Front panel plate cushion between the indoor... -
Page 26: Installation
Fig. 8-3-2 • Install the provided drain nipple in the hole of the <Anchor bolt arrangement of outdoor unit> bottom plate of the outdoor unit. (See the above RAS-10SKH-ES figure.) 600mm • Perform proper drainage processing using a drain Air inlet hose sold separately or one on the market. - Page 27 8-3-2. Kit Parts Parts with an asterisk (*) are packaged with the outdoor unit. Name of parts Name of parts Name of parts Part Part Part Q'ty Q'ty Q'ty Installation plate x 1 Shield pipe x 1 Deodorizing filter x 1 Pan head wood screw ø3,1 x 16 x 2 Wireless remote control x 1...
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Page 28: Indoor Unit
8-4. Indoor Unit 8-4-1. Cutting a Hole and Mounting Installation Plate t t t t t Installation place <Cutting a hole> • A place which provides the spaces around the indoor unit as shown in the diagram in section 8-2. When installing the refrigerant pipes from the rear •... - Page 29 (2) Prepare the power source for exclusive use with up the indoor unit. the air conditioner. (2) Install the installation plate horizontally in the wall. RAS-10SKH-ES/ RAS-13SKH-ES/ Model (3) To mount the installation plate on a concrete wall RAS-10SAH-ES...
- Page 30 8-4-3. Wiring Connection Taking out the power cord WARNING To plug the cable in the plug receptacle, take the Slitted portion following precaution. THIS APPLIANCE MUST BE EARTHED. • Cut off the slitted portion in the side face of the IMPORTANT rear panel to take out the power cord.
- Page 31 <How to connect the connecting cable> <Stripping length of connecting cable> Wiring of the connecting cable can be carried out 50mm Earth line without removing of the front panel. 10mm (1) Remove the front panel. Fully open the front panel. Disengage the sup- port arm located in the upper center while push- ing its handle leftwards, and then remove the front 10mm...
- Page 32 8-4-4. Piping and Drain Hose Installation To connect pipe after installation of unit (figure) <In case of rightward piping> (To the forefront of flare) • After scribing slits of the front panel and the rear 196mm panel by a knife or a marking-off pin, cut them by a Side of liquid flow 96mm pair of nippers or the like.
- Page 33 8-4-5. Indoor Unit Installation 8-4-6. Drainage (1) Pass the pipe through the hole in the wall, and (1) Run the drain hose sloping downwards. hook the indoor unit on the installation plate at the Note : upper hooks. • Hole should be made at a slight downwrd slant to (2) Swing the indoor unit to right and left to confirm the outdoor side.
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Page 34: Outdoor Unit
1) Philips screw driver • An allowable length of the connecting pipe is up to: 2) Hole core drill (65mm) RAS-10SKH-ES: 10m 3) Gaugramanifold RAS-13SKH-ES: 15m 4) Spanner • An allowable head level is up to:... - Page 35 8-5-2. Refrigerant Piping Connection 8-5-3. Vacuum Pumping <Flaring> AIR PURGE (1) Cut the pipe with a pipe cutter. Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump. Do not use the refrigerant in the outdoor unit. Obliquity Roughness Warp...
- Page 36 8-5-4. Wiring Connection CAUTION (1) Remove the electric parts cover from the outdoor unit. (1 screw) • KEEP IMPORTANT 4 POINTS FOR INSTAL- LATION (PIPING WORK) (2) Connect the connecting cable to the terminals as identified with their respective matched numbers (1) Take away dust and moisture (Inside of the on the terminal block of indoor and outdoor units.
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Page 37: Others
8-6. Others 8-6-3. Auto Restart Setting This product is designed so that, after a power failure, 8-6-1. Gas Leak Test it can restart automatically in the same operating mode Flare nut connections (Indoor unit) as before the power failure. Flare nut connections (indoor unit) Information The product was shipped with Auto Restart function in the off position. -
Page 38: Troubleshooting Chart
9. TROUBLESHOOTING CHART TROUBLESHOOTING PROCEDURES : • Following details of “What to be pre-checked first”, make sure of the basic items. • When there is no trouble corresponding to above, check in detail the faulty parts following “How to judge faulty parts by symptoms”... - Page 39 9-1-3. Misleading but Good Operations to the contents in the Table 9-1-1. If it does, it is an (Program Controlled Operation) indispensable operation for the control and mainte- nance of the air conditioner: it is not a failure of the The microcomputer performs the operations listed in unit.
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Page 40: Primary Judgement Of Trouble Sources
9-2. Primary Judgement of Trouble 9-2-2. Display of Abnormalities and Judgement of the Abnormal Spots Sources The indoor unit of this machine observes the opera- 9-2-1. Role of Indoor Unit Controller tion condition of the air conditioner and displays the The indoor unit controller receives the operation com- contents of the self-diagnosis as block displays on mands from the remote control and assumes the fol-... - Page 41 (2) Self-diagnosis with remote control 2) Selecting ordinary mode With the indoor unit control, self-diagnosis of pro- Push the all clear button (ACL) on the rear bot- tective circuit action can be done by turning the tom of the wireless remote control with a tip of remote control operation into service mode, oper- pencil for more than 3 seconds.
- Page 42 <Self-diagnosis by check codes> c) At the same time, also make sure the op- eration lamp is also blinking. This shows 1) The self-diagnosis by the check codes is con- that the protection circuit on the indoor P .C. ducted under the block displays of item B-H in board is working.
- Page 43 Table 9-2-4 Block level Diagnosis function Judgment and action Check Check Block Symptom conditioner Condition code code status Indoor Thermo. sensor Continued Indicated when 1. Check thermo. sensor. P.C. board short/break. operation detected abnormal 2. If it is OK, check P.C. board. Heat exchanger Continued Indicated when 1.
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Page 44: Troubleshooting Flowcharts
9-3. Troubleshooting Flowcharts 9-3-1. Power can not be Turned on (No Operation at All) <Preliminary checks> (1) Is the supply voltage normal? Operation (2) Is the connection to the AC output OK.? Check Items Main cause Shut off the power supply from AC outlet once and Countermeasure turn it on after 5 seconds. - Page 45 9-3-2. Power can not be Turned on after Replacing Indoor P.C. Board <Checking Procedure> Connect the AC plug. Return the wiring of the Is it wired as shown in Does the OPERATION power relay is returned to Figure on page 59 and 60? lamp blink? the normal procedure.
- Page 46 9-3-4. Only Compressor does not Operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? See "Power can not be turned on". Does the power turn on by See "Power can not be turned on".
- Page 47 9-3-5. Only Outdoor Fan does not Operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? See "Power can not be turned on". Does the power turn on by See "Power can not be turned on".
- Page 48 9-3-6. Only 4-Way Valve does not Operate (During Heating Operation) Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? See "Power can not be turned on". Does the power turn on by See "Power can not be turned on".
- Page 49 9-3-7. Only the Indoor Fan does not Operate < Preliminary checks > Does it neither work in COOL or FAN ONLY operation? < Check procedure > Shut off the power supply once. Turn the power supply. Does the fan Replace the P.C. board. stop in no operating Control P.C.
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Page 50: How To Check The Remote Control (Including The Indoor P.c. Board)
9-4. How to Check the Remote Control (Including the Indoor P.C. Board) There is no beep from the indoor unit. Push the START/STOP button. The operation lamp of the air conditioner main unit does not light. Does the transmission indicator blink? Short-circuit the metal terminal at the side of the battery compartment... - Page 51 9-4-1. How to Check the P.C. Board (2) Inspection procedures (1) Operating precautions 1) When a P .C. board is judged to be defective, check for disconnection, burning, or discolora- 1) When removing the front panel or the P.C. tion of the copper foil pattern or this P .C. board. board, be sure to shut off the power supply.
- Page 52 (3) Checking procedure Table 9-4-1 Procedure Check point (Symptom) Causes Shut off the power supply and 1. Is the fuse blown? 1. * Application of shock voltage. remove the P.C. board assembly * Overcurrent by short-circuit of the from the electronic par ts base. parts.
- Page 53 9-4-2. P.C. Board Layout Top View Bottom View – 53 –...
- Page 54 Table 9-4-2 Approximate value of the sensor (thermistor) resistance (TA, TC) (= kΩ) Temperature 0°C 10°C 20°C 25°C 30°C Sensor 35,8 20,7 12,6 10,0 7,92 Themo. sensor 9-4-3. How to Reduce the Operation Time of Wireless remote control the Anti-Restart Timer •...
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Page 55: Part Replacement
10. PART REPLACEMENT 10-1. Indoor Unit RAS-10SKH-ES, RAS-13SKH-ES Part name Procedure Remarks • Front panel 1) After stopping the operation of the air conditioner, be sure to turn off the circuit breaker or disconnect the power plug from the AC wall socket. - Page 56 Part name Procedure Remarks „ ‚ Horizontal grille 1) Perform the process Note: 2) Remove the screw fixing the louver motor, and remove the louver motor. The horizontal grille can not be 3) Remove the shaft of the horizontal grille from the removed without drain-pan.
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Page 57: Microcomputer
10-2. Microcomputer RAS-10SKH-ES, RAS-13SKH-ES Part name Procedure Remarks • Common 1) Turn the power supply off to stop the operation of Replace the thermal fuse, terminal procedure air-conditioner, and disconnect the power cord from block, power cord, microcomputer the AC supply. -
Page 58: Outdoor Unit
10-3. Outdoor Unit RAS-10SAH-ES Part name Procedure Remarks • Common 1) Stop the operation of air-conditioner, and disconnect procedure the power cord from the AC supply. 2) Remove E-parts cover. (1- ST1T ø4 x 10 ) 3) Remove the cord clamp (2- ST2T ø4 x 12 ) and remove the connecting cable. -
Page 59: Cautions On Replacement Of P.c. Board Assembly
11. CAUTIONS ON REPLACEMENT OF P.C. BOARD ASSEMBLY RAS-10SKH-ES 1. Set the switch (SW03) provided on the P .C. board as follows. 2. Check the black lead wire is double wound around the current trans. (CT. T02) Black White Blue... - Page 60 RAS-13SKH-ES 1. Set the switch (SW03) provided on the P .C. board as follows. 2. Check the black lead wire is double wound around the current trans. (CT. T02) Black White Blue Brown RY01 1 2 3 4 Indoor Power terminal terminal P.C.
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Page 61: Exploded Views And Parts List
12. EXPLODED VIEWS AND PARTS LIST 12-1. Indoor Unit (1) RAS-10SKH-ES Location Part Location Part Description Description 43T60002 Base, Terminal 43T69015 P .C. Board A’ssy MCC-713 3P , AC 300V, 20A 43T61001 Base, E-Parts 43T69004 Sensor, Heat Exchanger ABS, Black, UL94-5V 10kΩ, 25°C... - Page 62 RAS-13SKH-ES Location Part Location Part Description Description 43T60002 Base, Terminal 43T69016 P.C. Board A'ssy MCC-713 3P , AC 300V, 20A 43T61001 Base, E-Parts 43T69004 Sensor, Heat Exchanger ABS, Black, UL94-5V 10kΩ, 25°C 43T62006 Base, Shield 43T69005 Sensor, Thermostat SGCC-Z08-LUB 10kΩ, 25°C 43T60001 Base, Terminal 43T60004 Fuse, Temperature 77°C 2P , AC 300V, 20A...
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Page 63: Indoor Unit (2)
Indoor Unit (2) RAS-10SKH-ES Location Part Location Part Description Description 43T69003 Relay, Power 43T55004 Varistor 560V DI1U, 20A, AC 250V 43T34001 Filter, Line 0,6A 43T58002 Transformer, Switching 43T30001 IC, Switching MA 2830P-FJ SWT-34 43T31001 Diode, Rectifier 43T60003 Fuse 3,15A, AC 250V RBV-406, 600V 43T32001 Resistor 5,6Ω, 5W... - Page 64 RAS-13SKH-ES Location Part Location Part Description Description 43T69003 Relay, Power 43T55004 Varistor 560V DI1U, 20A, AC 250V 43T34001 Filter, Line 0,6A 43T58002 Transformer, Switching 43T30001 IC, Switching MA 2830P-FJ SWT-34 43T31001 Diode, Rectifier 43T60003 Fuse 3,15A, AC 250V RBV-406, 600V 43T32001 Resistor 5,6Ω, 5W 43T58001 Transformer, Current 43T33001 Capacitor, Electrolytic...
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Page 65: Indoor Unit (3)
Indoor Unit (3) Location Part Location Part Description Description 43T00002 Front Panel Assembly 43T49003 Spring (10SKH-ES) 43T00003 Suction Grille 43T49009 Spring (13SKH-ES) 43T80001 Air Filter (L) 43T49005 Plate of EVA-SEAL 43T80002 Air Filter (R) 43T49006 Holder for Plate of EVA-SEAL 43T80003 Frame Filter 43T49004 Rubber of Sound Insulation (10SKH-ES) -
Page 66: Outdoor Unit
12-2. Outdoor Unit RAS-10SAH-ES 13, 16, 25, 26 9, 11 15 2 10, 12 7 : CAPILLARY TUBE 8 : CAPILLARY TUBE Location Part Location Part Description Description 43T19001 Guard Fan 43T21001 Fan-Motor UE6-21SJ5P 43T20001 Fan, Propeller 43T47001 Flange, Nut 43005037 Front Cabinet 43T46013 Solenoid Coil 43T43011 Condenser... - Page 67 RAS-13SAH-ES Location Part Location Part Description Description 43005144 Cabinet, Front 43T46011 Packed Valve, 9,52 43005143 Cabinet, Side 43T47020 Bonnet, 12,7 DIA 43042446 Base 43T47007 Capillary Tube 1,2 DIA 43T19001 Guard Fan 43T47008 Capillary Tube 1,5 DIA 43T19005 Handle 43041764 Compressor, PA160X2T-4FM AC 220/230/240V, 50Hz...