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Table of Contents
Troubleshooting
Related Manuals for Toshiba RAS-10SKH-E
Summary of Contents for Toshiba RAS-10SKH-E
- Page 1 T O S H I B A F I L E N O . A 0 0 - 9 6 1 9 S E R V I C E M A N U A L A I R - C O N D I T I O N E R S P L I T W A L L T Y P E R A S - 1 0 S K H - E R A S - 1 0 S A H - E...
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Page 2: Table Of Contents
CONTENTS 1. SPECIFICATIONS ......................4 2. CONSTRUCTION VIEWS ....................6 2-1. Indoor Unit ..........................6 2-2. Outdoor Unit ..........................7 3. WIRING DIAGRAM ......................8 4. SPECIFICATIONS OF ELECTRICAL PARTS ..............9 4-1. Indoor Unit ..........................9 4-2. Outdoor Unit ..........................9 5. - Page 3 8-4. Indoor Unit ..........................26 8-4-1. Cutting a Hole and Mounting Installation Plate .................26 8-4-2. Electrical Work ............................27 8-4-3. Wiring Connection ..........................28 8-4-4. Piping and Drain Hose Installation ...................... 30 8-4-5. Indoor Unit Installation ......................... 31 8-4-6. Drainage ..............................31 8-5.
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Page 4: Specifications
1. SPECIFICATIONS RAS-10SKH-E/10SAH-E, RAS-10SKHX/10SAHX Model Item COOLING HEATING 220V 230V 240V 220V 230V 240V Capacity 2.65 2.68 2.70 3.00 3.05 3.10 Phase Single Power source 220/230/240 Power consumption 0.98/0.99/1.02 0.89/0.90/0.91 95/92/90 95/92/88 Power factor 220V 230V 240V 220V 230V 240V... - Page 5 Note : *1 • Capacity is based on the following temperature conditions. Condition JIS C9612-1994 Temperature Cooling Heating (DB) 27°C 20°C Indoor unit inlet air temperature (WB) 19°C 12°C (DB) 35°C 7°C Outdoor unit inlet air temperature (WB) 24°C 6°C Notes : *2 CHARGELESS •...
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Page 6: Construction Views
2. CONSTRUCTION VIEWS 2-1. Indoor Unit RAS-10SKH-E RAS-10SKHX Heat exchanger Air inlet Air filter @@@@@@ PPPPPP @@@@@@ PPPPPP @@@@@@ PPPPPP 10SKH-E : Without power cord 1800 10SKHX : With power cord Air outlet Knock out system Front panel Back body Hanger Drain hose (0.54m) -
Page 7: Outdoor Unit
ø11x14 Hole ø6 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 Access for charging View Inlet port 600 or more Inlet port 100 or more... -
Page 8: Wiring Diagram
3. WIRING DIAGRAM Model Section A LOUVER MOTOR RAS-10SKH-E/SAH-E FAN MOTOR 220/230/240V ~ MOTOR 50Hz THERMAL FUSE 77˚C × 2 RAS-10SKHX/SAHX 220/230/240V ~ 50Hz CN04 CN07 CN10 SG01 R109 MAIN P.C. BOARD R116 MCC-713 GRN&YEL VARISTOR IC04 F01 FUSE DB01 T3.15A... -
Page 9: Specifications Of Electrical Parts
4. SPECIFICATIONS OF ELECTRICAL PARTS 4-1. Indoor Unit RAS-10SKH-E RAS-10SKHX Parts name Type Specifications ICF-35-19-3 Output (Rated) 19W, 2pole, 1phase, 220/230/240V, 50Hz Fan motor (for indoor) TICF-35-19-3 Thermo sensor (microprocessor) 10kΩ at 25°C (TA-sensor) DC-DC transformer (T01) SWT-34 DC390V, Secondary DC35V, 12V, 7V... -
Page 10: Refrigerant Cycle Diagram
5. REFRIGERANT CYCLE DIAGRAM RAS-10SKH-E / RAS-10SAH-E RAS-10SKHX / RAS-10SAHX Indoor unit Evaporator Cooling 0.39m 0.49m Heating (Connecting pipe) (Connecting pipe) ø9.52 ø6.35 Cross flow fan Optional piping kits O.D.:9.52mm RB-P31BEF1 (3m) O.D.:6.35mm RB-P51BEF1 (5m) RB-P71BEF1 (7m) Packed valve Packed valve (ø9.52) -
Page 11: Micro-Computer Block Diagram
6. MICRO-COMPUTER BLOCK DIAGRAM – 11 –... -
Page 12: Operation Descriptions
7. OPERATION DESCRIPTIONS 7-1. FAN ONLY Operation 7-2. COOL Operation (MODE of the remote control : FAN ONLY) (MODE of the remote control : COOL) (1) During this mode, the relay RY01 is always turned (1) Compressor 4-way valve, outdoor fan and off so that only the indoor fan is operated. -
Page 13: Louver Control
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 14: 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, 4-way valve, outdoor fan and operation desired position. -
Page 15: Auto Operation
7-5-1. Temporary Auto 7-5. AUTO Operation 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 16: 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 17: High-Temperature Limit Control (Heating Operation)
7-8. High-Temperature Limit Control 7-10. Cool Airflow Prevention Control (Heating Operation) (Heating Operation) The microprocessor detects the indoor heat exchanger (1) During the heating operation, the indoor fan speed temperature so as to prevent exceeding the is controlled automatically in accordance with the condensate pressure. -
Page 18: 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 19: Auto Restart Function
7-12-1. How to Set the Auto Restart 7-12. Auto Restart Function 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 20: How To Cancel The Auto Restart
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: Repeat the setting procedure: the unit will acknowledge the instruction and bleep three times. -
Page 21: 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. – 21 –... - Page 22 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 23: 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 24: Installation
8-3. Installation <Drainage> 8-3-1. Optional Parts ø25 Bottom plate Part 12 Drain nipple Parts name Q’ty code Refrigerant piping Each Liquid side : ø6.35 mm Gas side : ø9.52 mm Drain hose sold Pipe insulating material separately or one on the (polyethylene foam, 6 mm thick) market. -
Page 25: Kit Parts
8-3-2. Kit Parts Parts with an asterisk (*) are packaged with the outdoor unit. Part Name of parts Part Name of parts Part Name of parts Q’ty Q’ty Q’ty Installation plate x 1 Shield pipe x 1 Deodorizing filter x 1 Pan head wood screw Wireless remote control x 1 Purifying filter x 1... -
Page 26: Indoor Unit
8-4-1. Cutting a Hole and Mounting 8-4. Indoor Unit Installation Plate 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 27: Electrical Work
8-4-2. 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 screwing it in the upper and lower parts to hook (2) Prepare the power source for exclusive use with up the indoor unit. -
Page 28: Wiring Connection
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 29 <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 support arm located in the upper center while pushing its handle leftwards, and then remove the front panel 10mm...
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Page 30: Piping And Drain Hose Installation
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 31: Indoor Unit Installation
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. -
Page 32: Outdoor Unit
8-5. Outdoor Unit CAUTION t Installation place Installation in the following places may result in • A place which provides the spaces around the trouble. Do not install the unit in such places. outdoor unit as shown in the diagram in page 23. •... -
Page 33: Refrigerant Piping Connection
8-5-1. Refrigerant Piping Connection 8-5-2. 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 34: Wiring Connection
8-5-3. 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. -
Page 35: Others
8-6-3. Auto Restart Setting 8-6. Others 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 36: 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 37: Misleading But Good Operations
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. -
Page 38: Primary Judgement Of Trouble Sources
9-2-2. Display of Abnormalities and 9-2. Primary Judgement of Trouble 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 39 (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 40 <Self-diagnosis by check codes> c) At the same time, also make sure the op- eration lamp is also flashing. This shows 1) The self-diagnosis by the check codes is con- that the protection circuit on the indoor PC ducted under the block displays of item B-H in board is working.
- Page 41 Table 9-2-4 Block level Diagnosis function Judgment and action Check Check Conditioner Block Symptom Condition code code status Indoor PC Thermo sensor Continued Indicated when 1. Check thermo sensor. board short/break. operation detected abnormal 2. If it is OK, check PC board. Heat exchanger Continued Indicated when...
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Page 42: 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 43: Power Can Not Be Turned On After Replacing Indoor Pc Board
9-3-2. Power can not be Turned on after Replacing Indoor PC Board <Checking Procedure> Connect the AC plug. Return the wiring of the Is it wired as shown Does the OPERATION power relay is returned to lamp flash? in Figure below? the normal procedure. -
Page 44: Only Compressor Does Not Operate
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 flash? See "Power can not be turned on". Does the power turn on by See "Power can not be turned on". -
Page 45: Only Outdoor Fan Does Not Operate
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 flash? See "Power can not be turned on". Does the power turn on by See "Power can not be turned on". -
Page 46: Only 4-Way Valve Does Not Operate
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 flash? See "Power can not be turned on". Does the power turn on by See "Power can not be turned on". -
Page 47: Only The Indoor Fan Does Not Operate
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 PC board. stop in no operating Control PC board is defective. -
Page 48: How To Check The Remote Control (Including The Indoor Pc Board)
9-4. How to Check the Remote Control (Including the Indoor PC 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 flash? Short-circuit the metal terminal at the side of the battery compartment... -
Page 49: How To Check The Pc Board
9-4-1. How to Check the PC Board (2) Inspection procedures (1) Operating precautions 1) When a PC board is judged to be defective, check for disconnection, burning, or discolora- 1) When removing the front panel or the PC board, tion of the copper foil pattern or this PC board. be sure to shut off the power supply. - Page 50 (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 PC board assembly * Overcurrent by short-circuit of the from the electronic parts base. parts.
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Page 51: Pc Board Layout
9-4-2. PC Board Layout Top View Bottom View – 51 –... -
Page 52: How To Reduce The Operation Time Of The Anti-Restart Timer
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 Themo Sensor 35.8 20.7 12.6 10.0 7.92 9-4-3. How to Reduce the Operation Time of Wireless remote control the Anti-Restart Timer •... -
Page 53: Part Replacement
10. PART REPLACEMENT 10-1. Indoor Unit (RAS-10SKH-E, RAS-10SKHX) 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 54 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 55: Microcomputer
10-2. Microcomputer (RAS-10SKH-E, RAS-10SKHX) 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 56: Outdoor Unit
10-3. Outdoor Unit (RAS-10SAH-E, RAS-10SAHX) 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 57: Cautions On Replacement Of Pc Board Assembly
11. CAUTIONS ON REPLACEMENT OF PC BOARD ASSEMBLY 1. Set the switch (SW03) provided on the PC 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 Double winding Indoor... -
Page 58: Exploded Views And Parts List
12. EXPLODED VIEWS AND PARTS LIST 12-1. Indoor Unit (1) Location Part Location Part Description Description 43T60002 Base, Terminal 43T69008 PC 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... -
Page 59: Indoor Unit (2)
Indoor Unit (2) 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... -
Page 60: Indoor Unit (3)
Indoor Unit (3) Location Part Location Part Description Description 43T00002 Front Panel Assembly 43T49006 Holder for Plate of EVA-SEAL 43T00003 Suction Grille 43T49004 Rubber of Sound Insulation 43T80001 Air Filter (L) 43T79002 Drain Guide 43T80002 Air Filter (R) 43T39002 Motor Band (Left) 43T80003 Frame Filter 43T39001 Motor Band (Right) 43T07004 Screw Cap (L) -
Page 61: Outdoor Unit
12-2. Outdoor Unit 8, 9 10, 11 14 2 7 : CAPILLARY TUBE Location Part Location Part Description Description 43T19001 Guard Fan 43T47001 Flange, Nut 43T20001 Fan, Propeller 43046255 Solenoid Coil 43005037 Front Cabinet 43T19005 Handle 43T43001 Condenser 43T49001 Rubber-Cushion 43062194 Cover, E-Parts 43T79001 Nipple, Drain...