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CONTENTS 1. SPECIFICATIONS ........................................................................................................... 4 2. CONSTRUCTION VIEWS ............................................................................................... 6 2-1. Indoor Unit .................................................................................................................................. 6 2-2. Outdoor Unit .......................................................................................
9. TROUBLESHOOTING CHART ..................................................................................... 32 9-1. What to be Prechecked First .................................................................................................. 32 9-1-1. Power Supply Voltage ........................................................................................................................... 32 9-1-2. Incorrect Cable Connection between Indoor and Outdoor Units .........................................
1. SPECIFICATIONS RAS-10SK-E/10SA-E Model Item Capacity Power consumption Power factor Running current Starting current Moisture removal Refrigerant 220V 2.
Note : *1 • Capacity is based on the following temperature conditions. Condition Temperature JIS C9612-1994 Cooling (DB) 27°C (WB) 19°C (DB) 35°C (WB) 24°C Indoor unit inlet air temperature Outdoor unit inlet air temperature Notes : *2 CHARGELESS • 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.
2. CONSTRUCTION VIEWS 2-1.
2-2. Outdoor Unit RAS-10SA-E RAS-10SAX Detail Drawing 600 A Gas side (flare ø9.52) ø25 Drain hole 30 230 216 25 ø11x14 Hole 85 R10 230 36 50 600 111 36 216 A Liquid side (flare ø6.
3. WIRING DIAGRAM Section A LOUVER MOTOR L N THERMAL FUSE 77˚C x 2 GRY L N GRY RAS-10SKX/SAX 220/230/240V ~ 50Hz 3 3 CN04 1 1 GRN&YEL Section A VARISTOR F01 FUSE BRW MAIN P.C. BOARD MCC-713 IC04 R01 T3.
4. SPECIFICATIONS OF ELECTRICAL PARTS 4-1. Indoor Unit RAS-10SK-E RAS-10SKX No.
5. REFRIGERANT CYCLE DIAGRAM RAS-10SK-E / RAS-10SA-E RAS-10SKX / RAS-10SAX Cooling 0.39m (Connecting pipe) ø9.52 O.D.:9.52mm T1 Indoor unit Evaporator 0.49m (Connecting pipe) ø6.35 Cross flow fan Optional piping kits RB-P31BFH1 (3m) RB-P51BFH1 (5m) RB-P71BFH1 (7m) P Packed valve (ø9.52) O.D.:6.35mm Packed valve (ø6.35) Capillary tube ø1.5x1200 Accumulator Compressor PH102T1-4C Dryer Condenser Refrigerant R-22 0.73kg Propeller fan Outdoor unit Mark ( ) means check points of Gas Leak Fig.
– 11 – AC 220/230/240V~ 50Hz ECONO.
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 off so that only the indoor fan is operated. RY02 is always turnd on. FAN-ONLY display is lit. (1) Compressor, outdoor fan and operation display are controlled as shown in Fig. 7-2-1. (Room temp. – Set temp.) ON +1 ON Compressor Outdoor fan (RY01) Room temp. Set 0 temp.
7-2-1. Louver Control 7-3. DRY Operation (1) By pushing the SET button of the remote control during the operation, the louver can be set to the desired position. (MODE of the remote control : DRY) (Room temp. – Set temp.) +3 +2 ON ON +1 OFF OPERATION display Compressor Outdoor fan (RY01) Set 0 temp. Common relay (RY02) (2) When the AUTO button is pushed, the louver vertically swings within range of 25deg. ON:5min. OFF:5min.
7-4. AUTO Operation 7-4-1. Temporary Auto (MODE of the remote control : AUTO) When the TEMPORARY button is pushed, the set temperature is fixed at 24°C and controlled in accordance with the chart shown in Fig. 7-4-1. (Room temp. – Set temp.) (1) One of the 2 modes, Cooling or Dry is selected according to room temperature at which operation is to start, as shown in Fig. 7-4-1. The Fan mode will continue until room temperature reaches a level at which another mode is selected.
7-5. ECONO. Mode When the ECONO. button is pushed, during COOL and AUTO operation, the OPERATION display is turned off and the ECONO. display is lit and the indoor unit operates quietly and mildly with controlling airflow. 7-6. Low-Temperature Limit Control (Cooling Operation) The microprocessor detects the indoor heat exchanger temperature so as to prevent freezing up the indoor heat exchanger. Control is performed as shown in Fig. 7-6-1. 7-5-1. Cooling (1) In the ECONO. mode, the set temp.
7-7. Auto Restart Function 7-7-1. How to Set the Auto Restart This unit is equipped with an Automatic restarting facility which allows the unit to restart and resume the set operating conditions in the event of a power supply shutdown without the use of the hand control. To set the Auto Restart function, proceed as follows: The operation will resume without warning three minutes after the power is restored.
7-7-2. How to Cancel the Auto Restart To cancel the Auto Restart function, proceed as follows: Repeat the setting procedure: the unit will acknowledge the instruction and bleep three times. The system will now be required to manually restart with the remote control after the main supply is turned off. Cancellation is carried out: • When the system is stand-by (not running) OPERATION MOTION Press the TEMPORARY button continuously more than three seconds.
8. INSTALLATION PROCEDURE 8-1. Safety Cautions For general public use Power supply cord of parts of appliance for Outdoor use shall be more than polychloroprene sheathed flexible cord (design H05 RN-F), or cord designation 245 IEC 57. CAUTION TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY. This appliance must be connected to the mains by means of a circuit breaker or a switch with a contact separation of at least 3 mm. If this is not possible, a power supply plug with earth must be used.
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. • 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 and discharged air might disturb user’s neighbors.
8-2. Installation Diagram of Indoor and Outdoor Units For installation of the indoor unit, use the paper pattern on the back. 66 mm or more 3 Clip anchor Hook 120 Front cabinet mm For the rear and left piping Wall Hook or m ore Front panel 1 Installation plate 120 or mmm ore Hook 8 Mounting screw Air tac ht 11 Filter frame ot he Do not allow the drain hose to get slack. filte Cut the piping hole sloped slightly r 5 Shield pipe ba ck sid e.
8-3. Installation 600mm Air inlet 8-3-1. Optional Parts Parts name Q’ty 230mm Part code Refrigerant piping A Each one Liquid side : ø6.35 mm Gas side : ø9.52 mm B Pipe insulating material (polyethylene foam, 6 mm thick) C Putty, PVC tapes Air outlet 1 Fig 8-3-1 Air outlet Each one • Secure the outdoor unit with the anchor bolts if the unit is likely to be exposed to a strong wind. • Use ø8 or ø10 anchor bolts. 8-3-2. Installation Parts Part No.
8-4-1. Cutting a Hole and Mounting Installation Plate 8-4. Indoor Unit t Installation place • 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 • A place where there is no obstacle near the air inlet and outlet. • A place which allows an easy installation of the piping to the outdoor unit. • A place which allows the front panel to be opened. CAUTION 40.
(1) Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit. 8-4-2. Electrical Work (1) The supply voltage must be the same as the rated voltage of the air conditioner. (2) Prepare the power source for exclusive use with the air conditioner. (2) Install the installation plate horizontally in the wall.
8-4-3. Wiring Connection Taking out the power cord WARNING To plug the cable in the plug receptacle, take the following precaution. Slitted portion THIS APPLIANCE MUST BE EARTHED. • Cut off the slitted portion in the side face of the rear panel to take out the power cord. After this, remove burrs, sharp edges, etc., to smooth the cut face.
Wiring of the connecting cable can be carried out without removing of the front panel. 50mm Earth line 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 toward you. 2 1 10mm 40mm (2) Remove the terminal cover and cord clamp.
8-4-4. Piping and Drain Hose Installation To connect pipe after installation of unit (figure) (To the forefront of flare) • After scribing slits of the front panel and the rear panel by a knife or a marking-off pin, cut them by a pair of nippers or the like. 196mm 96mm Side of liquid flow Side of gas flow Outward form of indoor unit 43mm Slit (front panel) R 30mm (Use polisin or the like for bending pipe.) ˚ 80 Slit (rear panel) Use the handle of screwdriver,etc.
8-4-5. Indoor Unit Installation 8-4-6. Drainage (1) Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks. (1) Run the drain hose sloping downwards. NOTE : • Hole should be made at a slight downward slant to the outdoor side. (2) Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate. Do not rise the drain hose.
8-5. Outdoor Unit CAUTION t Installation place • A place which provides the spaces around the outdoor unit as shown in the diagram in page 20. Installation in the following places may result in trouble. Do not install the unit in such places. • A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration. • A place full of machine oil. • A place where the operation noise and discharged air do not disturb your neighbors.
8-5-1. Refrigerant Piping Connection 8-5-2. Vacuum Pumping AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump. (1) Cut the pipe with a pipe cutter. Obliquity 90˚ Roughness Do not use the refrigerant in the outdoor unit. Warp For details, see the manual of vacuum pump. Fig. 8-5-2
8-5-3. Wiring Connection CAUTION (1) Remove the electric parts cover from the outdoor unit. (1 screw) • KEEP IMPORTANT 4 POINTS FOR INSTALLATION (PIPING WORK) (2) Connect the connecting cable to the terminals as identified with their respective matched numbers on the terminal block of indoor and outdoor units. (1) Take away dust and moisture (Inside of the connecting pipes.) (Strip the sheath of connecting cable with following stripping length to and insert into the terminal block.
8-6. Others 8-6-3. Auto Restart Setting 8-6-1. Gas Leak Test This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure. Flare nut connections (indoor unit) C Information D The product was shipped with Auto Restart function in the off position. Turn it on as required. Electric parts cover • Press and hold down the TEMPORARY button for about 3 seconds.
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” later. 9-1-2. Incorrect Cable Connection between Indoor and Outdoor Units 9-1. What to be Prechecked First 9-1-1. Power Supply Voltage The line voltage must be AC 220/230/240V.
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 maintenance of the air conditioner: it is not a failure of the unit. Table 9-1-1 No.
9-2. Primary Judgement of Trouble Sources 9-2-2. Display of Abnormalities and Judgement of the Abnormal Spots 9-2-1. Role of Indoor Unit Controller The indoor unit of this machine observes the operation condition of the air conditioner and displays the contents of the self-diagnosis as block displays on the display panel of the indoor unit. The indoor unit controller receives the operation commands from the remote control and assumes the following functions.
(2) Self-diagnosis with remote control 2) Selecting ordinary mode With the indoor unit control, self-diagnosis of protective circuit action can be done by turning the remote control operation into service mode, operating the remote control, observing the remote control indicators and checking whether TIMER lamp flashes (5 Hz). Note : Push the all clear button (ACL) on the rear bottom of the wireless remote control with a tip of pencil for more than 3 seconds.
1) The self-diagnosis by the check codes is conducted under the block displays of item B-H in Table 9-2-1. c) At the same time, also make sure the operation lamp is also flashing. This shows that the protection circuit on the indoor PC board is working. 2) Remote control key operation under the service mode is conducted by ON/OFF or TEMP. The remote control display by each key operation is varied as shown below. Two digit number is displayed in a hexadecimal number.
Table 9-2-4 Block level Check code Block Indoor PC board Diagnosis function Check code Symptom Thermo sensor short/break. Air Conditioner status Judgment and action Condition 1. Check thermo sensor. Continued Indicated when operation detected abnormal 2. If it is OK, check PC board. Heat exchanger Continued Indicated when 1. Check heat exchanger sensor short/break. operation detected abnormal sensor. 2. If it is OK, check PC board. Indoor fan lock, abnormality of indoor fan.
9-3. Troubleshooting Flowcharts 9-3-1. Power can not be Turned on (No Operation at All) (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 turn it on after 5 seconds.
9-3-2. Power can not be Turned on after Replacing Indoor PC Board Connect the AC Power supply Does the OPERATION lamp flash? NO Is it wired as shown in Figure below? Return the wiring of the power relay is returned to the normal procedure. NO YES YES To the paragraph of “No Power turns on”. Black White Blue Brown C02 1 2 Indoor terminal block N L Power terminal block RY01 PC board RY02 T02 9-3-3.
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? NO See "Power can not be turned on". YES Does the power turn on by pushing the [START/STOP] button of the remote control? NO See "Power can not be turned on". YES Is the voltage across the indoor terminal ( 1 - 2 ) 220/230/240 VAC? NO Relays (RY01, RY02) or IC31 or IC30 is failure. NO Correct cabling between indoor and outdoor units.
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? NO See "Power can not be turned on". YES Does the power turn on by pushing the [START/STOP] button of the remote control? NO See "Power can not be turned on". YES Is the voltage across the indoor terminal ( 1 - 2 ) 220/230/240 VAC? NO Relays (RY01, RY02) or IC31 or IC30 is failure. NO Correct cabling between indoor and outdoor units.
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 stop in no operating status? NO Replace the PC board. Control PC board is defective. YES Start the operation with low fan setting in cool operation.
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 the air conditioner main unit does not light. Push the START/STOP button. Does the transmission indicator flash? NO YES Is there direct sunlight on the receptor of the air conditioner? Short-circuit the metal terminal at the side of the battery compartment (all-clear terminal) with a pencil.
9-4-1. How to Check the PC Board (2) Inspection procedures (1) Operating precautions 1) When removing the front panel or the PC board, be sure to shut off the power supply. 2) When removing the PC board, hold the edge of the PC board and do not apply force to the parts. 3) When connecting or disconnecting the connectors on the PC board, hold the whole housing. Do not pull at the lead wire.
(3) Checking procedure Table 9-4-1 No. Procedure Check Point (Symptom) Causes 1 Shut off the power supply and remove the PC board assembly from the electronic parts base. Remove the connecting cable from the terminal block. 1. Is the fuse blown? 1. * Application of shock voltage. * Overload by short-circuit of the parts. 2 Remove the connector for the motor, and turn the power on. If the OPERATION lamp flashes (0.5 sec. :ON, 0.5 sec.
9-4-2.
Table 9-4-2 Approximate value of the sensor (thermistor) resistance (TA, TC) (= kΩ) Temperature Sensor Themo Sensor 0°C 10°C 20°C 25°C 30°C 35.8 20.7 12.6 10.0 7.92 9-4-3. How to Reduce the Operation Time of the Anti-Restart Timer Wireless remote control • Attach the diode (1S1555 or equivalent) to the rivet inside the unit through holes on the rear of the wireless remote control unit. • Push the START/STOP button to start operation with the diode attached. Timer short diode Fig.
10. PART REPLACEMENT 10-1. Indoor Unit (RAS-10SK-E, RAS-10SKX) No. Part name Front panel Procedure 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. 3) Close the screw caps as they were. 4) Open the horizontal louver right below by your finger.
No. Part name Procedure Horizontal grille Note: The horizontal grille can not be removed without removing the louver motor. 1) Perform the process . 2) Remove the screw fixing the louver motor, and remove the louver motor. 3) Remove the shaft of the horizontal grille from the drain-pan. Heat exchanger 1) Perform the process . 2) Remove the pipe holder from the rear side of main unit by removing the screw.
10-2. Microcomputer (RAS-10SK-E, RAS-10SKX) No. Part name Procedure Common procedure 1) Turn the power supply off to stop the operation of air-conditioner, and disconnect the power cord from the AC supply. 2) Remove the front panel. • Remove the two fixing screws. (φ4 x 14 ) 3) Remove the electrical part base. Thermal fuse replacement 1) Perform the process above. 2) Remove terminal cover (Up), (Down).
10-3. Outdoor Unit (RAS-10SA-E, RAS-10SAX) No. Part name Procedure Remarks Common procedure 1) Stop the operation of air-conditioner, and disconnect 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. 4) Remove the front cabinet. (7- ST1T ø4 x 10 with nylon washer) • Pull the front lower portion toward you, and remove it pulling out upward.
11. CAUTIONS ON REPLACEMENT OF PC BOARD ASSEMBLY 1. Set the switch (SW03) provided on the PC board as follows. ON 1 2 3 4 5 OFF 6 1 2 3 4 5 6 ON OFF ON 2. Don?t wind the black lead wire around the current trans. (CT.
12. EXPLODED VIEWS AND PARTS LIST 12-1. Indoor Unit (1) 406 404 403 401 407 408 402 405 401 Location No. Part No. 401 43T60002 402 403 404 Description Location No. Base, Terminal 3P, AC 300V, 20A 43T69004 Sensor, Heat Exchanger 10kΩ, 25°C 43T69005 Sensor, Thermostat 10kΩ, 25°C 43T60004 Fuse, Temperature 77°C 405 406 407 408 – 53 – Part No.
Indoor Unit (2) 233 230 231 228 222 229 221 215 211 201 214 210 202 216 232 217 223 226 220 224 218 219 235 206 207 212 209 201 202 203 204 205 206 207 208 208 209 210 236 213 237 239 240 205 234 204 Location No. 227 241 208 203 225 Part No.
12-2. Outdoor Unit 24 23 16 6 17 25 5 4 8, 9 19 3 14 2 10, 11 13 20 21 22 7 : CAPILLARY TUBE 26 : DRYER 1 Location No. 1 2 3 4 5 6 7 8 9 10 11 13 14 Part No. Description Location No. 43T19001 Guard Fan 43T20001 Fan, Propeller 43005037 Front Cabinet 43T43004 Condenser 43062193 Cover, E-Parts 43005038 Back Cabinet 43T47008 Capillary-Tube 1.5 DIA 43T46001 Packed Valve, 9.52 43T47002 Bonnet, 9.52 DIA 43T46002 Packed Valve, 6.35 43T47003 Bonnet, 6.
