Toshiba RAS-10SA-E Air Conditioner User Manual
Contents
1. 8 5 2 Vacuum Pumping U U U U aaa 8 5 3 Wiring Connection ARNAN A Az 8 6 1 Gas Leak Test union diia 8 6 2 Test Operati On socio ia 8 6 3 Auto Restart Selling ii a 9 10 11 12 TROUBLESHOOTING CHART u u U U u Q u uu uu u uuu Q 32 9 1 Whatto be Prechecked First AA 32 9 1 1 Power Supply Voltage manas eiii 32 9 1 2 Incorrect Cable Connection between Indoor and Outdoor Units u 32 9 1 3 Misleading but Good Operations 33 9 2 Primary Judgement of Trouble Sources comica nen 34 9 2 1 Role of Indoor Unit Controller u u uu u recrear 34 9 2 2 Display of Abnormalities and Judgement of the Abnormal Spots 34 9 3 Troubleshooting Flowcharts Ul u u recen 38 9 3 1 Power can not be Turned on I U U rr 38 9 3 2 Power can not be Turned on after Replacing Indoor PC Board u u u 39 9 3 3 Outdoor Unit does not Operate 39 9 3 4 Only Compressor does not Operate2. Indoor fan lock abnormality of indoor fan 1 Judgement from defective operation or abnormal operation Table 9 2 2 Symptom Primary judgement No reaction on Turn off the power once turn it on Remote control is The indoor part including the remote control again and try to operate the remote not possible remote control is defective operation control again Remote controlis OK possible The outdoor fan The compressor operates The outdoor part is defective does not rotate outdoor fan motor The compressor does not operate The inside part is defective 34 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 Make sure ating the remote control observing the remote the operation mode display wind volume dis control indicators and checking whether TIMER play clock display and setting temperature dis lamp flashes 5 Hz play are turned on and of the clock display is flashing Note lt Cautions when doing services To perform this self diagnosis the remote 1 After completion of servicing always push the control with the service code of 4306966
3. Liquid side flare 06 35 8 06 Holes For fixing the outdoor unit 12 4 911x14 Long holes ma 111 For anchor bolt 88 010 200 Fan guard kat 9420 Ds SI T i Electric parts cover II II lo O N LO LO TIL 00 lo N Access for charging I Y LO EEN REESE JUNO AA A o Inlet port gt E 5 Inlet port Y V IV 4 600 or more q garmor Visible outline Minimum distance of the product of the wall HAY IPA N 4 011x14 Long holes E port For anchor bolt 48 410 5 o Center a port Mounting dimension of anchor bolt age 3 WIRING DIAGRAM RAS 10SK E SA E O MOTOR FAN MOTOR 220 230 240V N 50Hz RAS 10SKX SAX 220 230 240V 50Hz __ IB CNO4__ _CNO7 KOKAN CNO _ BLK SG01 Rida MAIN P C BOARD N R116 MCC 713 GRN amp YEL po4 DSA VARISTOR Ico4 F01 FUSE cae OVLO NA 4 net ta tisa Ll 0 PPO TO 250V Ti oor gt seal o DC 35V e be F Il lb kai C15 or i 3 8 TERMINAL i ECO o DC 12V
4. 40 9 3 5 Only Outdoor Fan does not Operate 41 9 3 6 Only the Indoor Fan does not Operate I U U u eee 42 9 4 How to Check the Remote Control Including the Indoor PC Board 43 9 4 1 How to Check the PG Board ccoo co 44 9 4 2 PC Board Layo u uu a aid 46 9 4 3 How to Reduce the Operation Time of the Anti Restart Timer 47 PART REPLACEMENT AA NANA A 48 10 1 Indoor Unit a U u NAA NUANBANALLULAINGDANAANANAR NAA 48 10 2 Microcomp uter U UU U U KEAN ANA AA 50 10 3 Outdoor UNIL sisse u A NA DADA AGANG NAA 51 CAUTIONS ON REPLACEMENT OF PC BOARD ASSENBLTY 52 EXPLODED VIEWS AND PARTS LIST nuca ii 53 12 1 Indoor Unit AAA A 53 Indoor Unit 2 aaa ARNAN AA eine KANAN ANITA Na 54 12 2 DUO Un ADA AA a 55 1 SPECIFICATIONS Capacity RAS 10SK E 10SA E RAS 10SKX 10SAX COOLING 240V 220V 2 70 2 70 Power source Single 220 230 240 50 Power consumption 0 83 0 85 0 88 Power factor 95 92 90 Running current 220V 230V 240V 0 15 3 82 0 15 3 87 0 15 3 92 Starting current 16 Moisture removal 1 2 Indoor H M L Noise 4
5. 8 5 4 8 5 2 Vacuum Pumping AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump Do not use the refrigerant in the outdoor unit For details see the manual of vacuum pump lt Use of vacuum pump gt 1 Connect the charge hose A from the manifold valve to the charge inlet of the gas side packed valve 2 Connect the charge hose B to the port of vacuum pump 3 Open fully the low pressure side handle of the manifold valve 4 Operate the vacuum pump 5 Close the low pressure side handle of manifold valve after vacuumizing and stop the vacuum pump Continue vacuumizing more than 15 minutes and check the pressure gauge indicates 76 cmHg 1 013x10 Pa 6 Open the stems of packed valves A and B all the way 7 Securely tighten the stem cap to each of the packed valve stems Manifold valve High pressure Pressure gage side handle Low pressure side handle Charge hose A 06 35 29 KEEP IMPORTANT 4 POINTS FOR INSTAL LATION PIPING WORK 1 Take away dust and moisture Inside of the connecting pipes 2 Tight connection between pipes and unit 3 Evacuate the air in the connecting pipes using VACUUM PUMP 4 Check gas leak connected points lt Packed Valve Handling Precautions gt Open the valve stem all the way out so not try to open it beyond the stopper e Securely t
6. 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 e When the system is stand by not running OPERATION Press the TEMPORARY button Stand by continuously more than three I seconds y y e TEMPORARY f e When the system is operating OPERATION Press the TEMPORARY button Operating continuously more than three J seconds y y e TEMPORARY f During subsequent operation the green light is light ing 7 7 3 In Case of Power Failure during the Timer Operation 1 If ON TIMER operation is reserved with setting of Auto Restart operation it is cancelled with power failure The OPERATION lamp on the main unit goes on and off to inform of power failure In that case try to reserve ON TIMER operation once again The system starts to operate The unit beeps three times The system stops to operate The system stops The system will now be required to manually restart with the remote control after the main supply is turned off Cancellation is carried out MOTION The orange light will be lit about three seconds after The green light will be lit The system is operating If the system is not required to run at this time press the TEMPORARY button once more or use the remote control and the
7. Set temp is changed 2 Set temp is changed Settemp OH 1H 2H TIME 1 ECONO button is pushed Fig 7 5 1 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 Heat exchanger temperature 0 11 Less than 5 C continues for 5 minutes OFF Fig 7 6 1 15 7 7 Auto Restart Function 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 The operation will resume without warning three minutes after the power is restored The Auto Restart function is set not to work on shipment from the factory and so it is necessary to set it to function as required e When the system is stand by not running OPERATION Press the TEMPORARY button Stand by continuously more than three y seconds 4 y TEMPORARY f e When the system is operating OPERATION Press the TEMPORARY button Operating continuously more than three y seconds y y The system starts to operate The unit beeps three times The system is operating The system stops to operate 7 7 1 How to Set the Auto Re
8. ber ing or thermal fuse is blown 3 The self diagnosis by the check codes is con e In the same way operate the TEMP ducted with procedures shown below key so that the display is increased one a Enterthe service mode and make sure the by one to continue checks by the self di off timer display of the remote control shows agnosis as shown in the next table From eae GI upto i check operations of Ga protection circuits for each block and b Operate the ON OFF key and make sure L the timer lamp on the display section is flashing 5 Hz to iF check operations of the typical protection circuits Table 9 2 3 Operating key Indication after operation ON OFF y mes TEMP AN Up 1 is added to data before operation i p Example n y am 1 is subtracted from data before operation TEMP Q Down Example p m y aaa 10 is subtracted from data before operation AUTO LOUVER Example ua Data before operation is directly transferred SET LOUVER Example 36 Block level Table 9 2 4 Diagnosis function Check code Block Indoor PC board Symptom Thermo sensor short break Air Conditioner status Continued operation Condition Indicated when detected abnormal Judgment and action Check thermo sensor If itis OK check PC board Heat exchanger sensor short break Continued oper
9. 4 Between and of C02 310 340V DC 5 Between 35V and 6 Between 12V and 7 Between 5 V and TP2 GND GND GND 1 AC power cord is defective Poor contact of the terminal plate Miss wiring of the power relay 2 Fuse is defective 3 Operation of the thermal fuse 4 Capacitor C01 C15 is defective Line filter L01 is defective Resistor R01 is defective Diode DB01 is defective 5 1C01 1C02 T01 are defective 6 1C01 1C02 T01 F03 are defective 7 1C01 1C02 T01 F02 Q29 IC03 are defective Make the operation status by pushing once the START STOP button except the status of FAN ONLY ON TIMER Voltage check 1 Voltage of relay coil DC 12V Between pin 10 of IC31 and GND Between pin 11 of IC31 and GND Between No 1 and 2 of connecting cable terminal block 220 230 240V AC 1 Breaking wire of the relay coil defective relay driver IC31 2 Poor contact of relay Start the operation with the system which the time of the restart delay timer is shortened All indicators light for 3 sec Indicators do not indicate normally after approximate 3 sec Defective indicator or poor housing assembly CN13 Make the operation status by pressing once the START STOP button 1 The time of the restart delay timer is shortened 2 Cool operati
10. 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 z O Does the OPERATION lamp flash YES Does the power turn on by pushing the START STOP button of the remote control NO YES Is the voltage across the indoor terminal NO D 220 230 240 VAC YES Is cable connection between indoor NO and outdoor units correct YES Is the voltage across the outdoor terminal N NO 220 230 240 VAC YES Are all the cords for outdoor NO fan motor normal YES Is the outdoor fan motor winding normal NO Check the winding resistance YES Is the capacitor for compressor normal YES z O Outdoor fan motor is defective See Power can not be turned on See Power can not be turned on Relays RY01 RY02 or IC31 or 1C30 is failure Correct cabling between indoor and outdoor units Cables between indoor and outdoor units are defective Correct the wire or replace the defective cords Outdoor fan motor is defective Capacitor for outdoor fan motor is defective 41 Replace the PC board 9 3 6 Only the Indoor Fan does not Operate lt Check procedure gt Shut off the power supply once Turn the power supply Does the fan stop in no operating status Start the operation with low fan setti
11. BLOCK RYo2 A RYO1 E i a kasi a aI 1 i 4 HH o DC 7V BLK DC OV WA AN CO6 C02 E saa A a oe 1X2 CNO1 SEFEEEL CN13 X2 1 A AN mmm a _ UINA CN25 INFRARED RAYS RECEIVE J AND INDICATION PARTS m O THERMO HEAT SENSOR EXCHANGER INDOOR TA SENSOR TERMINALM Z O TO BLOCK 0 A eee ee a _ JNDOOR _ _ _ _ DSA Surge absorber _ _ _ E OUTDOOR OUTDOOR TERMINAL BLOCK COLOR IDENTIFICATION BLK GRN 8 YEL BRW BROWN OVER LOAD amp 7 CHASSIS RED RED RELAY WHI WHITE CAPACITOR BLU BLUE TN BLK BLACK Ab GRY GRAY COMPRESSOR ENEE E DR l ORN ORANGE GRN amp YEL GREEN amp YELLOW 4 SPECIFICATIONS OF ELECTRICAL PARTS 4 1 Indoor Unit RAS 10SK E RAS 10SKX Parts name Fan motor for indoor ICF 35 19 3 or TICF 35 19 3 Specifications DC 35V 19W Thermo sensor TA sensor microprocessor 10kQ at 25 C DC DC transformer T01 SWT 34 DC390V Secondary DC35V 12V 7V Microcomputer TMP87CK40F Power relay RY01 Com mon relay RY02 DITU Coil DC12V 75mA Rated AC250V 20A Heat exchanger sensor TC sensor microprocessor 10kQ at 25 C Line filter LO1 RF 103YOR6 10mH AC 0 6A Diode DB01 RBV 406 4A 600V Capacitor C02 CEAUF2W101M20 100uF 450V Fuse F01 MT3 T3 15A 250V Power supply IC IC01 MA283
12. Fig 8 4 7 lt Stripping length of power cords 30mm 10mm Earth line NOTE Use standard wire only e Wire type More than HO5 RN F Fig 8 4 8 24 lt How to connect the connecting cables Wiring of the connecting cable can be carried out without removing of the front panel 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 Remove the terminal cover and cord clamp 3 Insert the connecting cable according to local codes into pipe hole on the wall 4 Take out the connecting cable through the cable slot on the rear panel so that it is exploded by about 15 cm long in the front side 5 Insert the connecting cable fully into the terminal block and secure it by screw tightly 6 Tightening torque 1 2 Nem 0 12 kgf m 7 Secure the connecting cable with the cord clamp 8 Fix the terminal cover and front panel on the indoor unit e Be sure to refer the wiring system diagram labeled inside the front panel e Check local electrical codes and also any specific wiring instructions or limitation Terminal block a Cord Terminal clamp ooe Connectin boa g cover Screw KY cable N gt ES 186 pad a I N line Q K 5 Loup Top m f Screw Connecting cable Screw Fig 8 4 9 lt Stripping length of connecti
13. MAY CAUSE ELECTRICAL SHOCK CONNECT THE CONNECTING CABLE CORRECTLY IF THE CONNECTING CABLE IS CONNECTED BY WRONG WAY ELECTRIC PARTS MAY BE DAMAGED CHECK THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OF GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2M FROM HEAT SOURCES SUCH AS RADIATORS HEAT RESISTORS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT R 22 WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE IT CAUSES GENERATION OF POISONOUS GAS e Never modify this unit by removing any of the safety guards or by by passing any of the safety interlock switches e 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 e Before doing the electrical work attach a
14. board 2 Poor contact of the motor connector 3 PC board is defective 9 4 2 PC Board Layout Top View Bottom View 46 Table 9 4 2 Approximate value of the sensor thermistor resistance TA TC kO 9 4 3 How to Reduce the Operation Time of Wireless remoteconiroi the Anti Restart Timer Attach the diode 181555 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 Deo Timer short diode Fig 9 4 1 47 10 PART REPLACEMENT 10 1 Indoor Unit RAS 10SK E RAS 10SKX 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 5 Open the lower side of front panel until it touches the horizontal louver and remove it from the indoor unit by turning it lt To assemble the front panels 1 Fix the two screws to secure the front panel 2 Close the screw caps as they were 3 Press four places where are the center right end left end and lower portions of the air outlet 4 Check the gap between the front panel and the main unit If cooling or drying o
15. circuit for U K only 19 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 g E G Clip anchor 5 E E o co Front cabinet Installation plate Insert the remote control holder cushion between the indoor unit and wall and lift indoor P unit to make work easier 120 IN te Do not allow the drain hose to Mounting screw get slack Cut the piping hole sloped slightly Make sure to run the drain hose sloped downward Front panel ta O lo the p n Filter LA frame 9 Deodorizing filter Pan head wood Screw of The auxiliary piping can be connected the left rear left rear right or bottom Remote control AO Purifying 2 Wireless holder filter remote control 600 mm or more ve Rear left Before install the wireless Barat remote control Exianel n With the remote control cover i drain hose open load the batteries KK lt H Option Insulation of refrigerant pipes H RB 821SW insulates the pipes separately supplied correctly observing not together their polarity Wireless remote control SS gt N Br a B Electric parts SG Ja S cover eo _Jor i e556 Batteries Loop the connective cable 6 mm thick heat resisting polyethylene foam
16. gt 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 Does the OPERATION lamp flash YES Symptom NO Does the transmission indicator of remote control flash normally and transmit certainly Does the power turn on by pushing the START STOP button of the remote control Remote control is defective No problem Replace the remote control YES Parts R21 R109 SG01 C15 C01 DB01 C02 IC01 T01 are defective Does the fuse F01 blow NO Does the thermal fuse blow Under PF Terminal YES Wrong wiring of AC cord or connecting cable is defective Replace the thermal fuse set Check connection NO Is the indication voltage DC12V or 5V of main PC board correct NO YES Replace the main PC board Is the voltage NO Refer to the paragraph Pre check or defective circuit DC310V 340V before power PC board block YES Is the secondary Shut off the power Is the secondary voltage of SW trans supply once and turn voltage of SW NO ai LI Col former T01 measured it on again after dis transformer measured for power supply is defective Replace the main PC board DC35V DC12V connecting the motor DC35V DC12V an
17. relation between room temperature and set temperature is shown below Room temp Set temp 1 Set temp Compressor Outdoor fan Indoor fan L SL L sr L SL L Super Low Fig 7 3 2 YG a 7 4 AUTO Operation 7 4 1 Temporary Auto When the TEMPORARY button is pushed the set temperature is fixed at 24 C and controlled in accor dance with the chart shown in Fig 7 4 1 MODE of the remote control AUTO 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 E Cooling mode The same cooling mode as the room temperature control is set at set temp 1 C The Louver moved downward N 4 z Cooling mode The same cooling mode as the room temperature control is set at set temp 1 C 5 1 Dry mode The same dry operation as the room temperature control is set at set temp 1 C Fig 7 4 1 14 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 5 1 Cooling 1 In the ECONO mode the set temp by the remote control is changed automatically as shown in Fig 7 5 1 2 Fan speed gt LOW O
18. with screws 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 Maximum Power source running Wiring current 50Hz 220 230 240V Single phase No adjustment is necessary e Use power specified in above table This appliance can be connected to the mains in either of the following two ways 1 Connecting the power cord to the main power supply provided with a circuit breaker or switch with a contact of 3 mm or more In this case an approved circuit breaker or switch must be used Attaching a plug to the power cord and pluging itin to the wall outlet In this case an approved power cord and plug must be used NOTE Perform wiring works so as to allow a generous wiring capacity a 8 4 3 Wiring Connection To plug the cable in the plug receptacle take the following precaution THIS APPLIANCE MUST BE EARTHED IMPORTANT THE WIRES IN THIS MAINS LEAD ARE COLORED IN ACCORDANCE WITH THE FOLLOWING CODE L Brown LIVE L N Blue NEUTRAL N amp Green and Yellow EARTH D aw Fig 8 4 5 As the colors of the flexible cord of this appliance may not correspond with the colored markings to identify terminals in your plug as follows Connect BROWN colored core to plug terminal marked letter L Connect BLUE colored core
19. 0 FJ 4A 600V Varistor R21 R109 15G561K 560V Resistor R01 ERF 5TK5R6 5 6 Q SW Louver motor 4 2 Outdoor Unit RAS 10SA E RAS 10SAX Parts name Compressor MP35EA7 PH102T1 4C Output Rated 2W 10poles 1phase DC 12V Specifications Output Rated 750W 2pole 1phase 220 230 240V 50Hz Winding resistance Q Red Black White Black at 20 C 3 88 5 06 Fan motor for outdoor UE6 21SJ5P Output Rated 18W 6pole 1phase 220 230 240V 50Hz Winding resistance Q Red Black White Black at 20 C 370 370 Running capacitor for fan motor SK 50FMP 500V AC 1 5uF Running capacitor for compressor SK 40CMP25U1 400V AC 25uF Overload relay J MRA99285 9201 U T 6 1A 80 C OPEN 13545 C CLOSE 78 11 C 5 REFRIGERANT CYCLE DIAGRAM RAS 10SK E RAS 10SA E RAS 10SKX RAS 10SAX T1 _Indoorunit____ Evaporator 1 Cooling 0 39m 0 49m Connecting pipe E Connecting pipe did Vi pa Cross flow fan pang O A I 1 NY Optional piping kits V O D 9 52mm P RB P31BFH1 3m 10 D 6 35mm na IB RB P51BFH1 5m ila Packed valve RE BAAL Packed valve Gam 09 52 96 35 gt Capillary tube Accumulator 1 5x12002 Compressor PH102T1 4C Dryer Condenser
20. 4 36 31 Outdoor 220 230 240V 44 45 45 Name of refrigerant R 22 Refrigerant 9 Rated volume 0 73 Refrigerant control Capillary tube Gas side size 9 52 Connection type Flare connection Liquid side size 6 35 Connection type Flare connection Interconnection pipe nterconniecHon pip Maximum length of one way 10 Maximum height difference Indoor unit Outdoor unit Condensate drain pipe Outer diameter 16 INDOOR UNIT RAS 10SK E RAS 10SKX Height 265 Dimensions Width 790 Depth 174 Net weight 8 Evaporator type Finned tube Indoor fan type Cross flow fan High fan 650 Air volume Medium fan 510 Low fan 430 Fan motor output 19 Air filter Polypropylene net filter Washable OUTDOOR UNIT RAS 10SA E RAS 10SAX 530 Dimensions 770 200 Net weight 29 Condenser type Finned tube Outdoor fan type Propeller Airflow volume 1600 Fan motor output 18 Model PH102T1 4C Compressor p Output 750 Safety device Fuse Overload relay Auto louver Yes Usable outdoor temperature range Specifications are subject to change without notice 21 43 Note 1 e Capacity is based on the following temperature conditions Condition JIS C9612 1994 Temperature Cooling I
21. 6 is all clear ACL button to return the operation required mode to the normal mode 2 After completion of servicing by the check code turn off the power once and then turn on the power to reset memorized contents of the microcomputer to the initial status lt How to select remote control operation mode gt 1 Selecting service mode Push the switch button provided on rear bot tom of the wireless remote control with a tip of pencil for more than 3 seconds Make sure the setting temperature 1111 is displayed on the display and other display is turned off All clear button Switch for selecting service mode BO Rear bottom cover Rear bottom of remote control Fig 9 2 1 AB lt Self diagnosis by check codes gt c At the same time also make sure the op 1 The self diagnosis by the check codes is con eration lamp is also flashing This shows ducted under the block displays of item B H in that the protection circuit on the indoor PC Table 9 2 1 board is working 2 Remote control key operation under the ser d Operate the TEMP key and make sure vice mode is conducted by ON OFF or TEMP the remote control display shows fi i and The remote control display by each key op flashing of the operation lamp If the op eration is varied as shown below Two digit eration lamp is flashing it shows the pro number is displayed in a hexadecimal num tection circuits for connecting cable is work
22. CEDURES Following details of What to be pre checked first make sure of the basic items e 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 What to be Prechecked First 9 1 1 Power Supply Voltage The line voltage must be AC 220 230 240N If the line voltage is not within this range this air conditioner may not work normally 9 1 2 Incorrect Cable Connection between Indoor and Outdoor Units The indoor unit is connected to the outdoor unit with 3 cables Make certain that the indoor and outdoor units have been connected properly with terminals assigned the same numbers wired to each other If the connec tors are not connected as specified the outdoor unit will not operate normally Ga 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 Operation of air conditioner When the power plug or the power cord of the indoor unit is inserted the OPERATION lamp on the setting indication part flashes Table 9 1 1 Description The OPERATION lamp flashes indicating t
23. L Josuas Jaburyox3 JeaH Kejdsig uonejado suonouny N d 0 9UB y onuoo PUN UEN 11 7 OPERATION DESCRIPTIONS 7 1 FAN ONLY Operation MODE of the remote control FAN ONLY 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 When the FAN is set to AUTO the indoor fan motor operates as shown in Fig 7 1 1 2 When the FAN is set to LOW MED or HIGH the indoor fan motor operates with a constant in volume as listed in Table 7 1 1 Room temp Fig 7 1 1 Auto setting of air volume Table 7 1 1 Manual setting of FAN SPEED Indication of HIGH Air volume FAN SPEED m3 h 2 Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing the START STOP button 7 2 COOL Operation MODE of the remote control COOL 1 Compressor outdoor fan and operation display are controlled as shown in Fig 7 2 1 a B 1b I o 2 S o E Set 0 temp 5 s 3 Z anj 355 s FS Bos S ES 25 Er Ko eLa E ws o gt 5 o OO 3 O Fig 7 2 1 2 Relays RY01 and RY02 are turned on to energize the outdoor unit and a cool operation is carried out 1 When the FAN is set to AUTO the indoor fan motor operates as shown in Fig 7 2 2 2 When the FAN
24. NN 14 TBs ECONO M0 0G6 u u uu TTE E 15 APP 15 7 6 Low Temperature Limit Control Cooling Operation 15 7 7 Auto Restart Function Xa e ia 16 7 11 How to Set the Auto Restart icono ia 16 7 7 2 How to Cancel the Auto Restart ccssccsssesseessseesseesssseeseesnsnesneeensnessenesseesnaneeseaeneeaseeesseeesseesaseessaeeas 17 7 7 3 In Case of Power Failure during the Timer Operation 17 INSTALLATION PROCEDURE ica di 18 8 1 Safety Cautions l GR uu u uu U U DARAANAN uuu 18 8 2 Installation Diagram of Indoor and Outdoor Units l u u u 20 8 3 In tallatilphi u IAS a ta 21 8 3 1 Optional Pansin ic 21 8 3 2 Installation Pars ANAKAN u u uuu u UQHU 21 8 4 Indoor Unit aa 2 AA 22 8 4 1 Cutting a Hole and Mounting Installation Plate uu uu uuu T 22 8 4 2 Electrical Work l l ul l uu u u uuu uuu u U Uu 8 4 3 Wiring Connection III ii 8 4 4 Piping and Drain Hose Installation 8 4 5 Indoor Unit Installation O A O 8 5 Outdoor Unit ccoommmroiinn e a is 8 5 1 Refrigerant Piping Connection
25. Refrigerant I Propeller fan R 22 0 73kg J Outdoor unit Mark means check points of Gas Leak Fig 5 1 Table 5 1 Standard pressure Surface temp of heat Ambient temp exchanger interchanging Fahispicagi conditions DB WB indoor C kg cm G pipe T1 C 10SK E 10SK E 10SKX 10SKX Indoor Outdoor Standard 5 0 13 0 High 27 19 35 24 Cooling High temperature 6 5 18 0 High 32 23 43 26 Low temperature 4 0 2 0 Low 21 15 21 15 Note e Measure the heat exchanger temperature at the center of U bend By means of TC sensor 0 6 MICRO COMPUTER BLOCK DIAGRAM ZH0S JOJO ued JOOPINO A0v2 0EZ 022 OV Sunjes uono uiq Jenno7 Suims OLNV Jaano7 x 1010 J9AN07 uonoajas pasds ug peubis 440 NO peubis 440 NO YNO J8Ano7 ugy JOOPINO Jossaldwo iddns Jamog B6uim s oway NINO NYA AHG 1009 OLNV uonoajas apoy vonelado JOJO UB y JOUWIL J00pU dO1LS LHvV LS uoneledo Bulissa9014 aunyesadwd Buiss ooud NIO JOPE OEO Kejdsig ubig Aduanbas4 490 9 XINO NVA pa e Ju ONUOD UONNJOADY Jolow unag Burzi eu JOU J9ANOT SAY delay eldsiq ubis ONODA 1Joss iduuoo JO 1e s9y Je Aejaq ajnuiw e e J9N999y eubis s ey p euJu Kejdsig PAN 0MU09 J9AN0 JOSU8S OW
26. S AND PARTS LIST 12 1 Indoor Unit 1 Part No Description 43T60002 43T69004 43T69005 43T60004 Base Terminal 3P AC 300V 20A Sensor Heat Exchanger 10kQ 25 C Sensor Thermostat 10kQ 25 C Fuse Temperature 77 C Part No Description 406 408 53 43169007 43169008 43161001 43162006 PC Board WRS LED MCC 635 PC Board MCC 713 Base E Parts ABS Black UL94 5V Base Shield SGCC Z08 LUB Indoor Unit 2 Part No Description 43T00002 43T00003 43T80001 43T80002 43T80003 43T07004 43T07003 43T08007 43T08005 43T19004 43T09003 for Service 43T09004 43T70001 43T21003 43T07001 43T44003 43147006 43147005 43149007 43119003 43149003 Front Panel Assembly Suction Grille Air Filter L Air Filter R Frame Filter Screw Cap L Screw Cap R LED Panel 10SK E LED Panel 10SKX Accepted Signal Filter Horizontal Louver Assembly Louver Assembly Drain Hose Assembly Motor Stepping Bushing Refrigerantion Cycle Assembly Pipe Delivery Pipe Suction Pipe Shield Holder Sensor Spring No Description 54 43149005 43149006 43149004 43179002 43139002 43139001 43121005 43120007 43122002 43139003 43103001 43107002 43182001 43185004 43185006 43111001 43169009 43163002 43162008 43162002 43162005 43162003 43T62004 Plate of EVA SEAL Hol
27. T O S H B A FILE NO A00 9625 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS 10SK E RAS 10SA E RAS 10SKX RAS 10SAX PRINTED IN JAPAN Dec 1996 ToMo CONTENTS SPEGIFICATIONS iu II AA AA 4 CONSTRUCTION VIEWS 6 2 1 Indoor UNILAB MANAGER AA 6 2 2 Outdoor UNit Xa a erre 7 WIRING DIAGRAM u ias 8 SPECIFICATIONS OF ELECTRICAL PARTS 9 AAPP e 9 4 2 Outdoor Unit uu UU ARENA aaa a 9 REFRIGERANT CYCLE DIAGRAN UU 10 MICRO COMPUTER BLOCK DIAGRAN U 11 s OPERATION DESCRIPTIONS siria aii 12 7 1 FAN ONLY Operation u u u U U U U I u uuu 12 7 2 COOL Operation u u u u U U U U UQ 12 7 2 1 Louver Control siiceisccessecccccccscccccccces cassnsecescesesscesnececncateccesseavesteescecandesseccsacersateracessaceesbacdanetsacceccesstuecunaesca 13 7 3 DRY Operation cssccsssancsenctceseetinaceveseecevavendseddecddediduedeanatecstaneusunetavavadsunevadeucienstecdecduadddedinenvvassdte 13 7 4 AUTO Operation U Uu U UU U U U U U U U uQ 14 f 4 1 Temporary Auto unsa luu
28. about 100 mm in diameter and 300 350 mm long D 8 3 Installation 8 3 1 Optional Parts Parts name Refrigerant piping Liquid side 96 35 mm Gas side 69 52 mm 230mm Pipe insulating material polyethylene foam 6 mm thick Putty PVC tapes 600mm Air inlet Air outlet Fig 8 3 1 Air outlet Secure the outdoor unit with the anchor bolts if the unit is likely to be exposed to a strong wind Use 88 or 810 anchor bolts lt Anchor bolt arrangement of outdoor units 8 3 2 Installation Parts Name of parts Q ty ll Installation plate x 1 Name of parts Q ty Shield pipe x 1 Name of parts 8 000 40 Wireless remote control x 1 Gm Pan head wood screw 3 1x161x2 Purifying filter x 1 Clip anchor x 6 Batteries x 2 WX Filter frame x 2 Remote control holder x 1 Others Cm Mounting screw 04 x 25 x 6 This model is not equipped with an extension drain hose Installation manual Owner s manual ee Option For the extension drain hose use an optionally available RB 821SW or commercially available one 8 4 Indoor Unit 4 Installation place A place which provides the spaces around the indoor unit as shown in the diagram in section 8 2 A place where there is no obstacle near the air inlet and outlet e A place which allows an easy installation of the piping to the ou
29. ation Indicated when detected abnormal Check heat exchanger sensor If itis OK check PC board Indoor fan lock abnormality of indoor fan All off Indicated when detected abnormal Disconnect the power plug from AC outlet and pull out the connector CN10 for the motor then connect the plug of AC power cord again and turn the power on Check the voltage between pin 1 and 2 of the connector CN10 If the output voltage is 35V PC board is OK check motor Abnormality of other indoor unit PC board All off Indicated when detected abnormal Replace PC board Refrigerant system 1 Gas shortage gas leak 2 Other refrigerant cycle trouble 3 Heat exchanger sensor off break short 4 Overload relay All off Indicated when detected abnormal 1 Check gas quantity check gas leakage If it is OK check heat exchanger sensor If heat exchenger sensor is OK check overload relay and thermostat for compressor If overload relay is OK check refrigerant cycle If refrigerant cycle is OK check PC board Contents detected by the check codes M to supply is turned off Therefore contents of operations in the past are all displayed 37 ic are stored in memory of the microcomputer even if the power 9 3 Troubleshooting Flowcharts 9 3 1 Power can not be Turned on No Operation at All lt Preliminary checks
30. d DC7V connector CN10 and DC7V YES Motor is defective Be sure to disconnect the motor connector CN10 after shut off the power supply or it will be a cause of damage of the motor 38 9 3 2 Power can not be Turned on after Replacing Indoor PC Board lt Checking Procedure gt Connect the AC Power supply Does the OPERATION NO lamp flash lidad h Return the wiring of the al lag ae a power relay is returned to Pure bers the normal procedure YES To the paragraph of No Power turns on Black 7 O 2 e e N L D ZA ZA 1 D LN LN ZI Indoor Power terminal terminal block block 9 3 3 Outdoor Unit does not Operate Shut off the power supply from AC outlet once and turn it on after 5 seconds NO Does the OPERATION lamp flash 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 AC220 230 240V supplied between terminal block NO Relays RY01 RY02 Replace the or IC31 or IC30 is failure PC board Is cable connection between indoor and outdoor units correct NO Correct cabling between indoor and outdoor units YES Check items as following procedure in 9 3 4 9 3 5 9 3 6 39 9 3 4 Only Compressor does not Operate Shut off t
31. d wiring method etc Every wire must be connected firmly NOTE Wipe type More than H05 RN F 30 8 6 Others 8 6 1 Gas Leak Test Flare nut connections indoor unit Electric parts 7 cover Valve stem cap Flare nut connection connections Outdoor unt Sh 54 Valve stem cap connection Service cap connection Fig 8 6 1 Check the flare nut connections valve stem cap connections and service cap connections for gas leak with a leak detector or soap water 8 6 2 Test Operation To switch the TEST RUN COOL mode press TEMPORARY button for 10 sec The beeper will make a short beep U CT Pp TEMPORARY e button Fig 8 6 2 8 6 3 Auto Restart Setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure The product was shipped with Auto Restart function in the off position Turn it on as required lt How to set the Auto Restart gt Press and hold down the TEMPORARY button for about 3 seconds After 3 seconds the electronic beeper makes three short beeps to tell you the Auto Restart has been selected e To cancel the Auto Restart follow the steps described in the section Auto Restart Function of the Owner s Manual 3 9 TROUBLESHOOTING CHART TROUBLESHOOTING PRO
32. der for Plate of EVA SEAL Rubber of Sound Insulation Drain Guide Motor Band Left Motor Band Right Fan Motor Fan Cross Flow Bearing Base Bearing Rear Plate Pipe Holder Installation Plate Owner s Manual 10SK E Owner s Manual 10SKX Pipe Shield Remote Control Holder Remote Control Cover E Parts Terminal Cover Up Terminal Cover Down Cord Clamp Shield Cover 12 2 Outdoor Unit VULGAR BDRERRRERBEL 7 CAPILLARY TUBE 26 DRYER Part No Part Description p No Description 43T19001 Guard Fan 43T19005 Handle 43T20001 Fan Propeller 43T49001 Rubber Cushion 43005037 Front Cabinet 43T19002 Stopper Guard 43T43004 Condenser 43T63001 Holder OL Relay 43062193 Cover E Parts 43054408 Relay Over Load 43005038 Back Cabinet J MRA 99285 9201 43T47008 Capillary Tube 1 5 DIA 43T41402 Compressor PH102T1 4G 43T46001 Packed Valve 9 52 43055483 Capacitor Plastic Comp 43T47002 Bonnet 9 52 DIA 25uF 400V 43T46002 Packed Valve 6 35 43T55001 MF Capacitor 1 5uF 500V 43T47003 Bonnet 6 35 DIA 43T60006 Base Terminal 3P 43121001 Fan Motor UE6 21SJ5P 43045073 Dryer 43T47001 Flange Nut 55 TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 1 05 01 JAPAN
33. e operation lamp of the air conditioner main unit does not light Does the transmission NO indicator flash YES Short circuit the metal terminal at the side of the battery compartment NO all clear terminal with a pencil wait about 10 seconds Is there direct sunlight on the receptor of the air conditioner YES Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner Push the START YES STOP button Battery life Is there any thyristor NO fluorescent light near by YES Does the transmission indicator light Is operation NO possible when setting NO the temporary switch of the air conditioner main unit to TEST RUN or TEMPORARY AUTO YES Is there any beep and operation YES NO Can any signal tone be heard in a transistor radio when transmitting within 5cm distance from the radio NO PC Board is failure Remote control is failure Keep the air conditioner away from thyristor Replace Replace the Normal Replace remote sunlight fluorescent light PC board batteries control Note After battery replacement shortcircuit the metal terminal at the side of the battery compartment all clear terminal with a pencil ZAS 9 4 1 How to Check the PC Board 2 Inspection procedures 1 Operating precautions 1 When a PC board
34. el Fig 8 4 13 lt Left hand connection with piping gt Bend the connecting pipe so that it is laid within 43 mm above the wall surface If the connecting pipe is laid exceeding 43 mm above the wall surface the indoor unit may unstably be set on the wall When bending the connecting pipe make sure to use spring bender so as not to crush the pipe Bend the connection pipe within a radius of 30 mm To connect pipe after installation of unit figure IS N 3 LLLLIGTRELLILLLLLLLLLLLLLLLLLL LLL N I ko Use the handle of screwdriver etc Fig 8 4 14 NOTE If the pipe is bent incorrectly the indoor unit may unstably be set on the wall After passing the connecting pipe through the pipe hole connect the connecting pipe to auxiliary pipes and wrap the facing tape around them e Bind the auxiliary pipes two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape lt Indoor unit Auxiliar NN pipes IS ING gt Connecting Installation 1 plate Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since dewing results in a machine
35. hat power is turned on If this happens push the START STOP button once to cause the lamp to stop flashing A power outage also causes the lamp to flash Fan speed remains unchanged in the dry mode Fan speed is automatically controlled in the dry mode Room temperature is in the range under which the compressor is turned off but the compressor will not stop The compressor will not stop while the compressor on hold timer 3 minutes timer is actuated The compressor will not switch on or off even when the thermo control is operated in the dry operation In the dry mode the compressor goes on and off at regular intervals independent of the thermo control Compressor does not work though room temperature is in the range of turning the compressor on Compressor does not work while the compressor restart delay 3 min timer is active The same is true after power is turned on as the time is still active During automatic operation the operation mode changes After selection of the cooling and dry operation the operation mode is selected again when the compressor off mode continues for 15 min according to the room temperature And after selection of the dry operation the condition of the room temperature which is Room temp gt Set temp 1 and which is Room temp lt Set temp 4 continues for 15 min the operation mode is selected again When the power is turned on the operation starts auto
36. he power supply from AC outlet once and turn it on after 5 seconds Z O Does the OPERATION lamp flash YES Does the power turn on by pushing the START STOP button of the remote control NO YES Is the voltage across the indoor terminal NO D 220 230 240 VAC Is cable connection between indoor NO and outdoor units correct lt m n lt m O Is the voltage across the outdoor terminal N NO 220 230 240 VAC m O z O Are all the cords for compressor normal lt m O s the compressor motor winding normal N NO Check the winding resistor Is the capacitor for compressor normal z O Is the overload relay normal Does the compressor start Compressor starts but it stops after a while lt lt lt lt m m m m nm nm n nm O O lt m n Is the gas quantity normal NO Check the pressure Compressor is defective lt m n See Power can not be turned on See Power can not be turned on Relays RY01 RY02 or IC31 or IC30 is failure Correct cabling between indoor and outdoor units Cables between indoor and outdoor units are defective Re wire or replace the defective cords Compressor is defective Capacitor is defective Overload relay is defective Compressor is defective Gas shortage Gas leakage aai AO Replace the PC board
37. ighten the valve stem cap with the wrench or like e Valve stem cap tightening torque is as follows Gas pipes side 99 52 29 4 Nem 3 0 kgf m Liquid pipe side 06 35 16 2 Nem 1 7 kgf m lt A5 mm hexagon wrench is required gt Flare nut 2 Valve body Valve stem Valve stem cap Fig 8 5 6 8 5 3 Wiring Connection 1 Remove the electric parts cover from the outdoor unit 1 screw 2 Connect the connecting cable to the terminals as identified with their respective matched numbers on the terminal block of indoor and outdoor units Strip the sheath of connecting cable with following stripping length to and insert into the terminal block 3 When connecting the connecting cable to outdoor unit terminal make a loop as shown in the installation diagram of indoor and outdoor unit to prevent water coming in the outdoor unit 4 Insulate the unused cords conductors with water coming in the outdoor unit Process them so that they do not touch any electrical or metal parts lt Stripping length of connecting cable gt rar Terminal block 60mm Terminal 10mm Earth line Screw 10mm i L N cable O somm Cord clamp Earth line For a three conductor cable Fig 8 5 7 e Wrong wiring connections may cause some electrical parts to burn out Be sure to comply with local code on running the wire from the indoor unit to outdoor unit size of wire an
38. in a place exposed always to a strong wind like a coast or on a high story of a building secure the normal fan operation using a duct or a wind shield 3 Specially in windy area install the unit to prevent the admission of wind Fig 8 5 1 YO de Installation in the following places may result in trouble Do not install the unit in such places A place full of machine oil A saline place such as coast A place full of sulfide gas e A place where high frequency waves are likely to be generated as from radio equipment welders and medical equipment 8 5 1 Refrigerant Piping Connection lt Flaring gt 1 Cut the pipe with a pipe cutter El as Ro Y Fo a Fig 8 5 2 2 Insert a flare nut into the pipe and flare the pipe A mm Imperial Rigid Fig 8 5 3 lt Tightening connection gt Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers Then tighten the nut with a spanner and torque wrench as shown in the figure Do not apply excess torque Otherwise the nut may crack depending on the installation conditions Unit N m E Additional Tightening torque tightening torque 15 7 1 6 kgfm 19 6 2 0 kgf m 29 4 3 0 kgf m 34 3 3 5 kgf m Half union or e valve om Flare nut TG threaded threaded side cao Use a wrench Use a torque wrench to secure to tighten Fig
39. is judged to be defective 1 When removing the front panel or the PC check for disconnection burning or discolora board be sure to shut off the power supply tion of the copper foil pattern or this PC board 2 When removing the PC board hold the edge 2 The PC board consists of the following 2 parts of the PC board and do not apply force to the a Main PC board part parts Power relay indoor fan motor drive circuit 3 When connecting or disconnecting the connec and control circuit C P U and peripheral cir tors on the PC board hold the whole housing cuits buzzer drive circuit and buzzer Do not pull at the lead wire b Infrared rays receive and indication parts Infrared rays receive unit and LED 44 3 Checking procedure Procedure Shut off the power supply and remove the PC board assembly from the electronic parts base Remove the connecting cable from the terminal block Table 9 4 1 Check Point Symptom 1 1s the fuse blown 1 Application of shock voltage Overload by short circuit of the parts Remove the connector for the motor and turn the power on If the OPERATION lamp flashes 0 5 sec ON 0 5 sec OFF when the power turning on the checking points described as 1 5 of right column are not necessary to perform Voltage check 1 Between TP1 and 220 230 240V AC 2 Between TP2 and pin 1 of CN04 220 230 240V AC 3 Between TP2 and pin 3 of CN04 220 230 240V AC
40. is set to LOW MED or HIGH the indoor fan motor operates with a constant in volume as listed in Table 7 1 1 all AUTO Manual E HIGH A 4p A g 3 According to the set 2 i position S 1 Set 0 continuous temp OFF Fig 7 2 2 3 Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing the START STOP button 5 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 BPErSUON the louver can be set to the 1 Compressor outdoor fan and operation display a are controlled as shown in Fig 7 3 1 And the louver position is stored in the microcom puter the louvers will be set to the position au tomatically at the next operation 2 When the AUTO button is pushed the louver ver tically swings within range of 25deg ON 6min OFF 4min ON ON ON 5min OFF 5min y Compressor Outdoor fan RY01 RY02 Common rela OPERATION display Fig 7 3 1 The microprocessor turns the compressor on and off at regular intervals 4 to 6 minutes on and or off During the compressor off the indoor fan will operate in the super low position The indoor fan will operate in the AUTO position 2 The pattern of operation depending on the
41. lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately lt Mounting the installation plates For installation of the indoor unit use the paper pattern on the back Anchor bolt hole 65 5mm Pipe hole z Thread pe oe Installation a Mounting plate Indoor unit Weight screw Fig 8 4 3 22 lt When the installation plate is directly mounted on the walls 1 Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit 2 Install the installation plate horizontally in the wall 3 To mount the installation plate on a concrete wall with anchor bolts utilize the anchor bolt holes as shown in the above figure When installing the installation plate with mounting screw do not use the anchor bolt hole Otherwise the unit may fall down and result in personal injury and property damage Installation plate Keep horizontal direction cs x O x or less Anchor bolt N 5mm dia hole Clip anchor Mounting screw 84 x 25 Fig 8 4 4 Failure to firmly install the unit may result in personal injury and property damage if the unit falls e In case of block brick concrete or similar type walls make 5 mm dia holes in the wall e Insert 3 clip anchors for appropriate mounting screws NOTE e Install the installation plate using 4 to 6 pieces of mounting screw securing four corners
42. matically When the auto restart controlling is selected the operation is performed automatically in the previous operation mode after the power supply has been turned on YY em 9 2 Primary Judgement of Trouble 9 2 2 Display of Abnormalities and Sources Judgement of the Abnormal Spots 9 2 1 Role of Indoor Unit Controller The indoor unit of this machine observes the opera tion 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 com mands from the remote control and assumes the fol lowing functions e Measurement of the draft air temperature of the indoor heat exchanger by using the thermo sen sor TA e Louver motor control Control of the indoor fan motor operation Control of the LED display Control of the outdoor unit compressor and the out door fan motor Table 9 2 1 Block display Block display OPERATION display flashing 1 Hz Power failure when power is ON OPERATION display flashing 5 Hz OPERATION display flashing 5 Hz OPERATION display flashing 5 Hz OPERATION display flashing 5 Hz Indoor PC board failure OPERATION TIMER and FAN ONLY display Gas shortage other refrigerant cycle trouble flashing 5 Hz e Heat exchanger sensor open break short Overload relay trouble Thermo sensor TA short break Heat exchanger sensor TC short break
43. move the cord clamp 2 ST2T 04 x 12 0 and remove the connecting cable 4 Remove the front cabinet 7 ST1T 04 x 10 Q with nylon washer Pull the front lower portion toward you and remove it pulling out upward Remarks Remove 7 ST1T 64 x10 1 ST1T 04 100 Capacitor for compressor 1 Remove the fixing screw securing the capacitor band 1 ST2T 94 x820 2 Remove the cable connected to the terminal Refer to Electrical parts list and location in page 55 Capacitor for fan motor 1 Remove the fixing screw 1 ST2T 94 x82 2 Remove the cable connected to the terminal Same as above Overload relay 1 Perform the process above 2 Remove terminal cover of compressor 3 Remove OL holder and pull OL relay up 4 Remove Fustons of leads 51 11 CAUTIONS ON REPLACEMENT OF PC BOARD ASSEMBLY 1 Setthe switch SW03 provided on the PC board as follows ON 1 2 3 4 5 6 ak OFF ON OFF O O1 Q N ON 2 Don t wind the black lead wire around the current trans CT T02 Indoor block EN R23 S m e9 DIO Q gi AS Di r s a 8 213I S gt D O a o pa gt R a a o n 8 8 O W o lt s a a gt ICS ro gt l w IC 4 IHMs SW03 A Se BST SL y BONIT 2 TONO ER Si ost Two ms TOSHIBA ROSSA 05 T02 T MS 52 12 EXPLODED VIEW
44. n approved plug to the power supply cord And make sure the equipment to be earthed e 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 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 To avoid personal injury be careful when handling parts with sharp edges Please read the installation manual carefully before installing the unit It contains further important instructions for proper installation UK Plugs and Sockets etc Safety Regulations 1994 SI Number 1768 With regard to Schedule 3 Item 7 of the above UK Regulations this appliance must be permanently connected to the fixed wiring of the main electrical supply by means other than the use of an approved 13 Amp plug top as outlined in the Regulations Electrical work must be carried by suitably qualified persons and in accordance with all relevant safety standards and codes of practice We recommend that the power supply for this appliance is derived from a suitably protected dedicated
45. ndoor unit inlet air temperature Outdoor unit inlet air temperature Notes 2 CHARGELESS e 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 Indoor Unit RAS 10SK E RAS 10SKX Air inlet Air filter Heat exchanger 174 LO o N 1800 10SK E Without power cord Air outlet a 10SKX With power cord Knock out system 232 326 232 Front panel B Hanger Back body 00 B Drain hose 0 54m 321 Hanger Knock out system Connecting pipe 0 39m Connecting pipe 0 49m Flare 09 52 Flare 06 35 65 5 659 65 5 ran Hanger Wireless For stud bolt minea 66 or more e210 sanen For stud bolt 2 distance 66 al to ceiling P6 Y 16 Minimum 4 ds Remote io S distance distance to wall control to wal holder Y Y woh El So Center line Installation l li plate outline 60 5 LOL 319 le 269 nl 126 a 790 2 2 Outdoor Unit RAS 10SA E RAS 10SAX A Detail Drawing 36 600 50 R10 y 11x14 Hole Handle a6 Hole Gas side flare 09 52
46. ng in cool operation NO Does the fan rotate YES Change the setting of cooling to high fan Does the fan speed become higher YES Control PC board is defective Replace the PC board Is the voltage measured DC35V between 1 red lead wire and 2 black lead wire of the motor connector CN10 YES Shut off the power supply NO Repair the bearing of the drain fan Shut off the power supply and turn it on after NO disconnecting the motor connector CN10 from the PC board Does the cross flow fan rotate normally YES Turn on the power supply NO Operation Is the voltage of DC35V measured between 1 red lead wire and 2 black lead wire of the motor connector CN10 YES NO Replace the PC board Is the rotation signal DC 5V 0V output between 4 blue lead wire and 2 black lead wire of the motor connector CN10 when rotating the cross flow fan by hand in no operating status 2 pulses one turn YES Replace the control Replace the PC board fan motor NO Be sure to disconnect the motor connector CN10 after shut off the power supply or it will be a cause of damage of the motor 42 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 Th
47. ng cable gt 50mm 10mm Earth line 40mm For a three conductor cable NOTE Use stranded wire only e Wire type More than H05 RN F Fig 8 4 10 lt How to install the front cabinet on the indoor unit gt Install the front cabinet through the opposite order of How to remove the front cabinet When the panel is removed and mounted again take the following actions After fastening the two screws one each at the left and right of the air outlet be sure to push the upper center 1 right end 2 left end 3 and the lower center 4 of the air outlet and confirm that no gap is left between the front cabinet and the rear plate If cooling dry operation is made without pushing the air outlet dew can be deposited on the front cabinet surface In addition a gap between the front cabinet and the rear plate will become wider spoiling the appearance Push Push Push OR 8 4 4 Piping and Drain Hose Installation lt In case of rightward piping gt e 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 Slit front panel Slit rear panel Fig 8 4 12 lt In case of downward piping gt e After scribing the slit of the front panel and slit in the lower part of the rear panel by a knife or a marking off pin cut them by a pair of nippers or the like Slit front panel Slit rear pan
48. on 3 Air volume AUTO 4 Make the setting temperature lower enough than room temperature 5 Continuous operation Compressor does not operate 2 OPERATION lamp flashes 1 The temperature of the indoor heat exchanger is abnomally lower 2 Poor contact of the heat exchanger sensor The connector is disconnected CN01 3 Heat exchanger sensor main PC board are defective Refer to Table 9 4 2 for the judgment of defective resistance values 4 Main PC board is defective The status of No 5 is continued and make the following condition 1 Heat operation 2 Make the setting temperature higher enough than room temperature Compressor does not operate OPERATION lamp flashes 1 The temperature of the heat exchanger is abnormally high 2 The heat exchanger sensor connector has short circuit CN01 3 The heat exchanger sensor is defective Refer to Table 9 4 2 for the judgment of defective resistance values 4 PC board is defective Turn the power on after connecting the motor connector Start the operation with the following condition 1 Operation Cooling 2 Airflow High fan 3 Continuous operation The voltage of DC 35V is not measured between the red and black of the motor terminals Motor does not rotate The key operation is accepted The motor rotates but it vibrates too much 1 Indoor fan motor is defective Protecting operation on the PC
49. ouver motor Procedure 1 Perform the process Q 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 Remarks y T ws a AG Louver motor Z _ y Horizontal grille Screw Heat exchanger 1 Perform the process Q 2 Remove the pipe holder from the rear side of main unit by removing the screw 3 Unhook the hooks fixing the left side of the heat exchanger and remove the screw fixing it then remove the right side of the end plate from the rib fixing the main unit by sliding the heat exchanger slightly to the right side BO aa Pipe holder Hooks fixing the heat exchanger Shaft bearing base Screw fixing the heat exchanger Cross flow fan 1 Perform the process 2 Loosen the set screw of the cross flow fan 3 Remove the screw fixing the shaft bearing base 4 Lift slightly up the left side of the heat exchanger and pull the shaft bearing base out left downwards When assembling it fix it with the set screw on the position where the gap between the rear plate surface and the left end surface of the cross flow fan is 6 7mm Hook E Screw beaning base Shaft bearing 1 Perform the process above 2 Remove the shaft bearing from the shaft bearing base lt Caution for assembling gt Ifa part of the shaft bearing is protruded from the housing assemble it after pushing its po
50. peration is performed without pressing the center of the air outlet the surface of the front panel may be covered with frost and have a waterdrop Remarks Electrical part assembly 1 Perform the process O above 2 Remove the screw securing the shield metal plate 3 Remove the electrical part cover by pressing the nail located on upper portion of the electrical part cover 4 Remove the drain guide 5 Remove the screw securing to the end plate of the heat exchanger 6 Remove the connector 5p for the fan motor and the connector 6p for the louver motor from the microcomputer assembly 7 After unhooking the electrical part base by pressing the fixing nail located on its lower portion draw the electrical part base out toward you to remove it from the main unit 8 Pull the TC sensor out from the holder of the heat exchanger 9 Dress the connecting cable securely as shown in the right illustration Improper dressing will cause water leakage Screw Upper nail Drain guide Screw Electrical part cover Lower fixing nail Screw TC sensor When assembling dress the connecting cable in loop and put it into the drain pan Drain pan assembly 1 Perform the process Y above 2 Remove the drain pan by pressing the four hooks downwards Keep it with the drain hose 48 Part name Horizontal grille Note The horizontal grille can not be removed without removing the l
51. rtion into the correct position in the housing Fan motor 1 Perform the process above 2 Perform the process 2 above 3 Remove the left and right motor bands 4 Remove the fan motor after pulling the cross flow fan out sliding it left and right 49 Mount the fan motor as shown in figure below Q s gt when assembling W Pu the end of lead ai m Wire at the portion vow between two ribs as 10 2 Microcomputer RAS 10SK E RAS 10SKX Part name Common procedure 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 04 x 14 0 3 Remove the electrical part base Remarks Replace the thermal fuse terminal block power cord microcomputer ass y and the power supply PC board ass y Thermal fuse replacement 1 Perform the process O above 2 Remove terminal cover Up Down 3 Disconnect the terminal blocks connected with the connecting cable and the power cord from base E parts by removing the screws 4 Remove the thermal fuse 77 C from base E parts 50 10 3 Outdoor Unit RAS 10SA E RAS 10SAX Part name Common procedure Procedure 1 Stop the operation of air conditioner and disconnect the power cord from the AC supply 2 Remove E parts cover 1 ST1T 64 x 10 Q 3 Re
52. start To set the Auto Restart function proceed as follows Access the TEMPORARY button located in the lower right hand corner beneath the hinged front panel of the indoor unit please refer to section on PARTS NAME The power supply to the unit must be on the function will not be set if the power is off To enable the Auto Restart function press the TEMPORARY button continuously for three seconds The unit will acknowledge the setting and beep three times The system will now restart automatically The above Auto Restart settings can be carried out MOTION The green light will be lit about three seconds after The orange light will be lit The orange light is lighting If the system is not required to run at this time press the TEMPORARY button once more or use the remote control and the unit will stop MOTION The green light is lit The green light is turned off about three seconds after The unit beeps three times The system stops TEMPORARY If the system is not required to stop at this time use the remote control and to restart During subsequent operation the orange light is lit e During louver swing AUTO operation after restart e The Auto Restart function will not accept an by the Auto Restart function the louver swing stops instruction if timer operation with the remote control is selected Please refer to the section on setting the timer or setting the louver 46 7 7 2
53. tdoor unit A place which allows the front panel to be opened e Direct sunlight to the indoor unit wireless receiver should be avoided The microprocessor in the indoor unit should not be too close to r f noise sources For details see the owner s manual lt Remote controls A place where there are no obstacles such as a curtain that may block the signal from the remote control Do not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote control should be determined as shown below ES 3 S Oo g KO a 7 D Reception 2 Reception Remote nae Remote ntrol range co oe control Axial distance Fig 8 4 1 8 4 1 Cutting a Hole and Mounting Installation Plate lt Cutting a hole gt When installing the refrigerant pipes from the rear HM oo Ht lee o o ehe lt o The center of the piping slot is the above arrow y The center of the pipe hole is the above arrow Fig 8 4 2 1 After determining the pipe hole position with the mounting plate 80 mm gt drill the pipe hole 965 mm at a slight downward slant to the outdoor side NOTE e When drilling the wall that contains a metal
54. tension drain hose insulate the connecting part of extension drain hose with shield pipe 6 A pipe 4 ZZ Drain hose Inside the room Fig 8 4 18 Arrange the drain pipe for proper drainage from the unit Extension drain hose Improper drainage can result in damage to property This air conditioner has the structure designed to drain water collected from dew which forms on the back of the indoor unit to the drain pan Therefore do not store the power cord and other parts at a height above the drain guide Wall Drain guide Space for pipes Fig 8 4 19 D 8 5 Outdoor Unit Installation place A place which provides the spaces around the outdoor unit as shown in the diagram in page 20 A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration A place where the operation noise and discharged air do not disturb your neighbors A place which is not exposed to a strong wind A place free of a leakage of combustible gases A place which does not block a passage When the outdoor unit is to be installed in an elevated position be sure to secure its feet An allowable length of the connecting pipe is up to 10m An allowable head level is up to 5 m A place where the drain water does not raise any problem 1 Install the outdoor unit without anything blodking the air discharging 2 When the outdoor unit is installed
55. to plug terminal marked letter N Connect GREEN AND YELLOW colored core to plug terminal marked Earth Symbol lt How to remove the front cabinets o NA Ng Y dad olo Fig 8 4 6 How to open the screw cap e e Place your finger on the lower part and push up to open the screw cap 1 Open the screw caps and remove the two screws securing the front cabinet 2 Close the screw caps as behind 3 Open the vertical airflow louver horizontally by hand 4 Slightly open the lower part of the front cabinet then pull the upper part of the front cabinet toward you to remove it from the rear plate Taking out the power cord lee Slitted portion 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 lt How to connect the power cord gt For the air conditioner that has no power cord connect a power cord to it as mentioned below After removing the front cabinet remove the terminal cover and the cord clamp e Connect and secure the power supply cord and secure the cord clamp and the terminal cover e Cut the rear panel following the cutting mark and put the power supply cord through the notch Be sure to smooth out the notch with a file etc Terminal block Cord clamp Power supply Terminal cover cord Kana am Q SAT Earth line GO Screw
56. trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material When bending a pipe carefully do it not to crush it 356 8 4 5 Indoor Unit Installation 1 Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hooks 2 Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate 3 While pressing the indoor unit onto the wall by the lower part hook it up on the installation plate by the lower part Pull the indoor unit toward you by the lower part to confirm that it is firmly hooked up on the installation plate 1 Hook here g Installation B plate Push Fig 8 4 15 For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing its bottom up by the specified parts Push Push Fig 8 4 16 8 4 6 Drainage 1 Run the drain hose sloping downwards NOTE e Hole should be made at a slight downward slant to the outdoor side Do not rise the drain hose Do not form the drain hose into the wared shape Y f Y y Y YA 50 4 4 4 E y x x Bx yl sa Dl HY Do not put the Do not put the drain drain hose end hose end in the into water drainage ditch Fig 8 4 17 2 Put water in the drain pan and make sure that the water is drained outdoors 3 When connecting ex
57. unit will stop MOTION The orange light is lit The orange light is turned off about three seconds after The unit beeps three times If the system is not required to stop at this time use the remote control and to restart 2 If OFF TIMER operation is reserved without setting of Auto Restart operation the reservation is cancelled with power failure The OPERATION lamp on the main unit goes on and off to inform of power failure In that case try to reserve OFF TIMER operation When Auto Restart operation is set OFF TIMER reservation is also cancelled with power failure a 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 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 This plug must be easily accessible after installation The plug must be disconnected from the power supply socket in order to disconnect the appliance completely from the mains FOR USE BY QUALIFIED PERSONS ONLY TURN OFF MAIN POWER SUPPLY AND BREAKER BEFORE ATTEMPTING ANY ELECTRICAL WORK MAKE SURE ALL POWER SWITCHES AND BREAKER TURN OFF FAILURE TO DO SO
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