Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for Toshiba RAS-10SK-E x2
Summary of Contents for Toshiba RAS-10SK-E x2
- Page 1 T O S H I B A F I L E N O . A 0 0 - 9 7 0 4 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 M U L T I S P L I T W A L L T Y P E R A S - 1 0 S K - E x 2 R A S - M 1 8 S A - E R A S - 1 0 S K X x 2 R A S - M 1 8 S A X...
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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 9. TROUBLESHOOTING CHART..................33 9-1. What to be Prechecked First ....................33 9-1-1. Power Supply Voltage ........................... 33 9-1-2. Incorrect Cable Connection between Indoor and Outdoor Units ............. 33 9-1-3. Misleading but Good Operations ......................34 9-2. Primary Judgement of Trouble Sources ................35 9-2-1.
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Page 4: Specifications
1. SPECIFICATIONS RAS-10SK-E (2 units) / RAS-M18SA-E Model RAS-10SKX (2 units) / RAS-M18SAX COOLING Item 1 Indoor unit 2 Indoor units (A or B) (A + B) 220V 230V 240V 220V 230V 240V Capacity Phase Single Power source 220/230/240 220V 230V 240V 220V... - Page 5 Note : *1 • Capacity is based on the following temperature conditions. Condition JIS C9612-1994 Temperature Cooling (DB) 27°C Indoor unit inlet air temperature (WB) 19°C (DB) 35°C Outdoor unit inlet air temperature (WB) 24°C Notes : *2 • This air conditioner accepts a connection piping length of up to 15m and a head of up to 5m. •...
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Page 6: Construction Views
2. CONSTRUCTION VIEWS 2-1. Indoor Unit RAS-10SK-E RAS-10SKX Heat exchanger Air inlet Air filter @@@@@@ PPPPPP @@@@@@ PPPPPP @@@@@@ PPPPPP 10SK-E : Without power cord 1800 10SKX : With power cord Air outlet Knock out system Front panel Back body Hanger Drain hose (0.54m) Hanger... -
Page 7: Outdoor Unit
2-2. Outdoor Unit RAS-M18SA-E RAS-M18SAX – 7 –... -
Page 8: Wiring Diagram
3. WIRING DIAGRAM Model Section A LOUVER MOTOR RAS-10SK-E FAN MOTOR 220/230/240V ~ MOTOR 50Hz THERMAL FUSE 77˚C x 2 RAS-10SKX 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 Section A 250V... -
Page 9: Specifications Of Electrical Parts
4. SPECIFICATIONS OF ELECTRICAL PARTS 4-1. Indoor Unit RAS-10SK-E RAS-10SKX Parts name Type Specifications ICF-35-19-3 DC 35V, 19W 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 Microcomputer TMP87CK40F Power relay (RY01), DI1U... -
Page 10: Refrigerant Cycle Diagram
5. REFRIGERANT CYCLE DIAGRAM RAS-10SK-E x 2 / RAS-M18SA-E RAS-10SKX x 2 / RAS-M18SAX INDOOOR UNIT A Evaporator Cooling Cross flow fan Optional piping kits RB-P31BFH1 (3m) 0.39m 0.49m RB-P51BFH1 (5m) (Connecting pipe) (Connecting pipe) RB-P71BFH1 (7m) ø9.52 ø6.35 INDOOR UNIT B Evaporator Cooling 0.39m... -
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, outdoor fan and operation display are 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, outdoor fan and operation display are desired position. -
Page 14: Auto Operation
7-4-1. Temporary Auto 7-4. AUTO Operation When the TEMPORARY button is pushed, the set tem- (MODE of the remote control : AUTO) perature is fixed at 24°C and controlled in accordance (1) One of the 2 modes, Cooling or Dry is selected with the chart shown in Fig. -
Page 15: Econo. Mode
7-5. ECONO. Mode 7-6. Low-Temperature Limit Control (Cooling Operation) When the ECONO. button is pushed, during COOL and AUTO operation, the OPERATION display is The microprocessor detects the indoor heat exchanger turned off and the ECONO. display is lit and the in- temperature so as to prevent freezing up the indoor door unit operates quietly and mildly with controlling heat exchanger. -
Page 16: Auto Restart Function
7-7-1. How to Set the Auto Restart 7-7. Auto Restart Function To set the Auto Restart function, proceed as follows: This unit is equipped with an Automatic restarting fa- Access the TEMPORARY button located in the lower cility 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 sup- the indoor unit (please refer to section on PARTS... -
Page 17: How To Cancel The Auto Restart
7-7-2. 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 fol- off. lows: Cancellation is carried out: Repeat the setting procedure: the unit will acknowl- edge the instruction and bleep three times. -
Page 18: 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. – 18 –... - Page 19 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 20: 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 21: Installation
8-3. Installation 600mm 8-3-1. Optional Parts Air inlet Part Parts name Q’ty code Refrigerant piping Each Liquid side : ø6.35 mm Gas side : ø9.52 mm Air outlet Pipe insulating material (polyethylene foam, 6 mm thick) Fig 8-3-1 Anchor bolt arrangement of Each Putty, PVC tapes outdoor unit... -
Page 22: 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 in- door unit as shown in the diagram in section 8-2. When installing the refrigerant pipes from the rear •... -
Page 23: 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 24: Wiring Connection
8-4-3. Wiring Connection Taking out the power cord WARNING To plug the cable in the plug receptacle, take the fol- Slitted portion lowing 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 25 <How to connect the connecting cable> <Stripping length of connecting cable> Wiring of the connecting cable can be carried out without removing of the front panel. 40mm Connecting cable (1) Remove the front panel. 10mm Fully open the front panel. Disengage the support The connecting cable doesn’t arm located in the upper center while pushing its...
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Page 26: 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 27: 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 downward slant to (2) Swing the indoor unit to right and left to confirm the outdoor side. -
Page 28: 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 out- trouble. Do not install the unit in such places. door unit as shown in the diagram in page 20. •... -
Page 29: 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 30: Wiring Connection
• Connect the refrigerant piping to the outdoor unit <Packed Valve Handling Precautions> as following figure. • Open the valve stem all the way out; so not try to • 2 packed valves in the bottom side are for the in- open it beyond the stopper. - Page 31 <How to connect the power cord and the connect- <Stripping length of connecting cable> ing cable> • Connect the power cord and the connecting cable 45mm as following figure. 10mm • Both indoor units and outdoor unit need the power Connecting cable cord.
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Page 32: 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. Information The product was shipped with Auto Restart func- tion in the off position. -
Page 33: 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 34: Misleading But Good Operations
9-1-3. Misleading but Good Operations (Program Controlled Operation) The microcomputer performs the operations listed in Table 9-1-1 to control the air conditioner. If a claim is made on the operation, check whether it corresponds to the contents in the Table 9-1-1. If it does, it is an indispensable operation for the control and mainte- nance of the air conditioner: it is not a failure of the unit. -
Page 35: 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 the mands from the remote control and assumes the fol-... - Page 36 (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 37 <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 38 Table 9-2-4 Block level Diagnosis function Judgment and action Check Check Conditioner Block Symptom Condition code code status 1. Check thermo sensor. Indoor PC Thermo sensor Continued Indicated when board short/break. operation detected abnormal 2. If it is OK, check PC board. 1.
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Page 39: 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 40: 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 Power supply Return the wiring of the Does the OPERATION Is it wired as shown power relay is returned to in Figure below? lamp flash? the normal procedure. -
Page 41: 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 42: 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 43: Only The Indoor Fan Does Not Operate
9-3-6. Only the Indoor Fan does not Operate < 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. status? Start the operation with low fan setting in cool operation. -
Page 44: 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. The operation lamp of Push the START/STOP button. 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 45: 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 46 (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 from * Overload by short-circuit of the the electronic parts base. parts.
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Page 47: Pc Board Layout
9-4-2. PC Board Layout Top View Bottom View – 47 –... -
Page 48: 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 49: Part Replacement
10. PART REPLACEMENT 10-1. Indoor Unit (RAS-10SK-E, RAS-10SKX) 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. 2) Open the screw caps and remove the two screws fixing the front panel. - Page 50 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 51: Microcomputer (Ras-10Sk-E, Ras-10Skx)
10-2. Microcomputer (RAS-10SK-E, RAS-10SKX) Part name Procedure Remarks Common 1) Turn the power supply off to stop the operation of air- Replace the thermal fuse, terminal procedure conditioner, and disconnect the power cord from the block, power cord, microcomputer AC supply. -
Page 52: Outdoor Unit (Ras-M18Sa-E, Ras-M18Sax)
10-3. Outdoor Unit (RAS-M18SA-E, RAS-M18SAX) Part name Procedure Remarks Common 1) After stopping the operation of the air conditioner, be procedure sure to turn off main power supply switch and breaker of outdoor unit and indoor unit. 2) Remove the electric parts cover. (4 screws) 3) Remove the cord clamps (6 screws). - Page 53 Part name Procedure Remarks ‡ ‚ Over load relay 1) Perform the process above. 2) Remove terminal cover of compressor. 3) Remove OL holder and pull over load relay up. 4) Disconnect the lead wire from the over load relay terminal.
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Page 54: 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. Don't wind the black lead wire around the current trans. (CT. T02) Black White Blue Brown RY01 Indoor Power terminal terminal PC board... -
Page 55: 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 43T69007 PC Board, WRS-LED 3P , AC 300V, 20A MCC-635 43T69004 Sensor, Heat Exchanger 43T69008 PC Board MCC-713 10kΩ, 25°C 43T61001 Base, E-Parts 43T69005 Sensor, Thermostat ABS, Black, UL94-5V 10kΩ, 25°C... -
Page 56: Indoor Unit (2)
Indoor Unit (2) Location Part Location Part Description Description 43T00002 Front Panel Assembly 43T49005 Plate of EVA-SEAL 43T00003 Suction Grille 43T49006 Holder for Plate of EVA-SEAL 43T80001 Air Filter (L) 43T49004 Rubber of Sound Insulation 43T80002 Air Filter (R) 43T79002 Drain Guide 43T80003 Frame Filter 43T39002 Motor Band (Left) 43T07004 Screw Cap (L) -
Page 57: Outdoor Unit
12-2. Outdoor Unit 33 34 Location Part Location Part Description Description 43005144 Front Cabinet 43T47002 Bonnet, 9.52 dia. 43T00005 Back Cabinet 43T47008 Capillary Tube, 1.5 dia. 43T00004 Side Cabinet 43T41402 Compressor, PH102T1-4C 43T42001 Base 43T63001 Holder, OL-Relay 43T00006 Packed Valve Plate 43T49001 Rubber-Cushion 43T19001 Fan Guard 43054408 Relay, Overload...