Micrografx Designer 7 - A00-9619.dsf
Contents
1. Model SecionA RAS 10SKH E SAH E m MOTOR FAN MOTOR 220 230 240V 50Hz Si 6 THERMAL FUSE ta RAS 10SKHX SAHX 77Cx2 5 220 230 240 a 50Hz ee BLK 5001 109 MAIN P C BOARD N R116 713 GRN amp YEL _ VARISTOR 1 04 F01 FUSE quce 1 4 p om Em BRW raisa 3 980 Section 250V E gm Leo OF m ie 1 i POWER ceto T 01 TERMINAL e DC12V BLOCK jRYOI d i i HH DE7V i i 1 04 CROT nb CRO2 MAN INDICATION PARTS 1 s 22 2 e SENSOR EXCHANGER TA SENSOR TC gt INDOOR TERMINAL tes DSA Surge absorber BLOCK Current trans DEMNM S 6 os Pu OUTDOOR SA e COLOR IDENTIFICATION 1 GRN amp YEL BRW BROWN 7 CHASSIS RED RED WHI WHITE REDI 7 E ae YEL YELLOW SOLENOID CAPACITOR BLU BLUE BLK BLACK GRY GRAY COMPRESSOR RED PNK PINK SAPACITOR ORN ORANGE GRN amp YEL GREEN amp 0 YELLOW FAN MOTOR 2ga 4 SPECIFICATIONS OF ELECTRICAL PARTS 4 1 Indoor Unit RAS 10SKH E RAS 10SKHX2. v rshoi e epo sndr its 14 7 4 2 Cool Airflow Control iuuat n n s nd sdi onn st s nd s radh es ed sdi i sdi ss 14 7 5 AUTO Operation 1 ac ascandasanev san r s soserenones v sdioj dh n ses n s b r ss c resosen osor sesossseshdis 15 7 5 1 Temporary AUTO i ad n xS d 2S ERA CER REFIERE IR RM CAE VESH SHEK RARE TRY dra 15 7 6 ECONO MO 16 ra sECKJLm 16 7 6 2 16 rr EE elicuaiButgevum M 16 7 8 High Temperature Limit Control Heating Operation 17 7 9 Low Temperature Limit Control Cooling Operation 17 7 10 Cool Airflow Prevention Control Heating Operation 17 7 11 Defrost 7 11 1 Condition to Start the Defrost Operation 7 11 2 Defrost Operation Time Control 7 11 3 Ending Condition at Defrost Operation ste teren nnne
3. 11 7 OPERATION DESCRIPTIONS 7 1 FAN ONLY Operation MODE of the remote control FAN ONLY 1 During this mode the relay RYO1 is always turned off so that only the indoor fan is operated RYO2 is always turnd on 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 sl E g 28 1 27 2 26 2 25 5 24 temp Fig 7 1 1 Auto setting of air volume Table 7 1 1 Manual setting of FAN SPEED HIGH Air volume m n Indication of FAN SPEED 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 4 way valve outdoor fan and operation display are controlled as shown in Fig 7 2 1 g 8 H 4 I a 5 ON E t Set 0 temp 5 5 gt 5 ff o EC o o Fig 7 2 1 2 Relays RYO1 and RYO2 are turned to energize the outdoor unit and a cool operation is carried out 1 VVhen the FAN is set to AUTO the indoor fan motor operates as shovvn in Fig 7 2 2 2 When the is set to LOW MED or HIGH t
4. When the system is operating OPERATION Press the TEMPORARY button Operating continuously more than three 4 seconds The system starts to operate The unit beeps three times The system is operating The system stops to operate 7 12 1 How to Set the Auto Restart 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 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 During louv
5. 61 1 SPECIFICATIONS Capacity RAS 10SKH E 10SAH E RAS 10SKHX 10SAHX COOLING HEATING 240V 220V 2 70 3 00 Single Power source 220 230 240 50 Power consumption 0 98 0 99 1 02 0 89 0 90 0 91 Power factor 95 92 90 95 92 88 Running current 220V 230V 240V 220V 230V 240V 0 11 4 58 0 11 4 57 0 11 4 61 0 11 4 17 0 11 4 16 0 11 4 22 Starting current 19 Moisture removal 1 2 Indoor H M L 41 36 31 Noise Outdoor 220 230 240V 47 48 49 Name of refrigerant Refrigerant 9 R 22 Rated volume 0 74 Refrigerant control Capillary tube Gas side size 9 52 Connection type Flare connection Liquid side size 6 35 Connection type Flare connection Interconnection pipe PR Maximum length of one way 10 Maximum height difference Indoor unit 1 Outdoor unit Condensate drain pipe Outer diameter 16 INDOOR UNIT RAS 10SKH E RAS 10SKHX Height 265 Dimensions Width 790 Depth 174 Net weight 8 Evaporator type Finned tube Indoor fan type Cross flow fan High fan 600 Air volume Medium fan 500 Low fan 400 Fan motor output 19 Air filter Polypropylene net filter Washable OUTDOOR UNIT RAS 10SAH E RAS 10SAHX 530 Dimen
6. Description Part No Description 43T69003 43T58002 43T60003 43132001 43733001 Relay Power DIU 20A 250V Transformer Switching SWT 34 Fuse 3 15A AC 250V Resistor 5 60 5W Capacitor Electrolytic 100MFD 450V AUF 59 43755004 43734001 43730001 43731001 43758001 Varistor 560V Filter Line 0 6A IC Switching MA 2830P FJ Diode Rectifier RBV 406 600V Transformer Current CT422920S 01 Indoor Unit 3 No Description 43T00002 43T00003 43T80001 43T80002 43T80003 43T07004 43T07003 43T08001 43T08006 43 19004 43 09003 for Service 43T09004 43T70001 43T21003 43T07001 43T44002 43747006 43747005 43749007 43719003 43749003 43749005 Front Panel Assembly Suction Grille Air Filter L Air Filter R Frame Filter Screw Cap L Screw Cap R LED Panel 10SKH E LED Panel 10SKHX 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 Plate of EVA SEAL Part No Description 60 43149006 43 49004 43 79002 43 39002 43 39001 43 21005 43 20007 43 22002 43 39003 43 03001 43 07002 43 82001 43 85001 43 85003 43111001 43 69002 43 63002 43 62001 43 62002 43 62005 43 62003 43 62004 43 60007
7. 36 9 1 3 Misleading but Good Operations nun nan anon se nene neser e nente n ne nes te sene enet tet s te sere teste sere teste sere eee s ses 37 9 2 Primary Judgement of Trouble Sources serre enen e enen eee en n tentene tee eee 38 9 2 1 Role of Indoor Unit Controller 5 th ca z n to dea ss easi son sh v n ad esa 38 9 2 2 Display of Abnormalities and Judgement of the Abnormal Spots 38 9 3 Troubleshooting Flowcharts nana nana nonen nenen nente nenen eene eene nennen nnne ne tee eee n nt et r e rene netet nnn 42 9 3 1 Power not be Turned On dott loo v sis va kadi S a 42 9 3 2 Power can not be Turned on after Replacing Indoor PC Board 43 9 3 3 Outdoor Unit does not Operate nona nana nonen nne nenen sene nenes te nete 43 9 3 4 Only Compressor does not Operate 2 4 2 11 11 eee ner e 44 9 3 5 Only Outdoor Fan does not Operate nte mere ter ee ne nenen tete teste t re ee ren ne ee tet n e eee teme nnn 45 9 3 6 Only 4 Way Valve does not Operate nana nana anon nanes ene nese nenes eee eee sete n s te 46 9 3 7 Only the Indoor Fan does not Oper a
8. Note Low temperature 2 0 Measure the heat exchanger temperature at the center of U bend By means of TC sensor 1 Dm During heating overload the high temperature limit control operation is included 6 MICRO COMPUTER BLOCK DIAGRAM JOlO N JoJo ue Joopu Kejdsiq ubis Kejdsiq ubis Kejdsia Kejdsia gt ZHOS A0v2 0EC 0EZOV 5 101811250 Kouanbel 49019 03002 1010 N Burzipeniu Dunes 49Ano1 1 19 Humes HAINIL 440 Bunies NO uonosjes peeds ue ouueu L 1000 OLNY uonoejes uoneJedo dOLS LYVLS peJeJju jeubis 20 10 10 HEJSSH ye Aejaq ejnuiu g e 1 1055914005 0 3002 JOSUSS JOSUAS Josuas Ndo jeued 041002 J9An0 onen oopino Aiddng samoa
9. 0 5 FILE NO 00 9619 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS 10SKH E RAS 10SAH E RAS 10SKHX RAS 10SAHX 5 i 4 CONSTRUCTION Rice 6 EN 6 2 2 q 7 WIRING DIAGRAM ii i n d ud 8 SPECIFICATIONS OF ELECTRICAL PARTS 1 9 4 Loo UT 9 A 2 Outdoor UN aa ua saa ca no 9 REFRIGERANT CYCLE DIAGRAM za an s 10 MICRO COMPUTER BLOCK DIAGRAM qua anuvani venave k nd sadaka nak duna 11 lt OPERATION DESCRIPTIONS gur e vari ba aa aa da h Dada Ua Ga audi 12 7 1 FAN ONLY Operation 12 7 2 COOL Operation a ccoasorsansionen sia sone r s ras s k sos s s sh s sosn sesensi sesa esodesss r r s sh n t n os bab n s 12 7 2 1 Louver COMMUN 13 7 3 DRY Operation e 13 7 4 HEAT Operation E 14 7 4 1
10. The heat exchanger sensor connector has short circuit CNO1 The heat exchanger sensor is defective Refer to Table 9 4 2 for the judgment of defective resistance values 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 Indoor fan motor is defective Protecting operation on the PC board 2 Poor contact of the motor connector 3 PC board is defective 9 4 2 PC Board Layout Top View Bottom View 51 Table 9 4 2 Approximate value of the sensor thermistor resistance TA TC 9 4 3 How to Reduce the Operation Time of the Anti Restart Timer Attach the diode 151555 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 9 4 1 52 10 PART REPLACEMENT 10 1 Indoor Unit RAS 10SKH E RAS 10SKHX Part name Front panel Procedure 1 After stopping the operation of the air conditioner be sure to turn off the circuit breaker
11. Cross flow fan 1 Perform the process G 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 beaning base Shaft bearing 1 Perform the process above 2 Remove the shaft bearing from the shaft bearing base Caution for assembling If a part of the shaft bearing is protruded from the housing assemble it after pushing its portion into the correct position in the housing Fan motor 1 Perform the process above 2 Perform the process 9 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 54 Mount the fan motor as shown in figure below ef PAN when assembling 7 1 Putthe end of lead 8 wire at the portion eLa between two ribs 10 2 Microcomputer RAS 10SKH E RAS 10SKHX 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 64 x 14 Q 3 Remove the el
12. 1 If the indoor heat exchanger temperature detected by the indoor heat exchanger sensor is 20 C or below the indoor fan stops and if the temperature rises to 25 or above the fan is restarted Details are in 7 10 IA 7 5 AUTO Operation 7 5 1 Temporary Auto When the TEMPORARY button is pushed the set temperature is fixed at 24 and controlled in accor dance with the chart shown in Fig 7 5 1 MODE of the remote control AUTO 1 One of the 3 modes Cooling Fan only and Heat ing is selected according to room temperature at which operation is to start as shown in Fig 7 5 1 The Fan mode will continue until room tempera ture reaches a level at which another mode is se lected 8 Cooling mode same cooling mode as the room temperature control is set at set temp 1 C Louver moved downward 8 Cooling mode same cooling mode as the room temperature control is set at set temp 1 2 Fan only mode Only the indoor fan operates at Low speed 5 id Heating mode same heating mode as the room temperature control is set at set temp 1 Fig 7 5 1 15 2 7 6 Mode When the ECONO button is pushed during COOL HEAT and AUTO operation the OPERATION display is turned off and the display is lit and the indoor unit operates quietly and mildly with controlling airflow 7 6 1 Cooling 1 In the ECONO mode the set temp by the
13. 220 230 240 VAC m 2 Are all the cords for compressor normal lt m s the compressor motor winding normal Y NO Check the winding resistor Is the capacitor for compressor normal z Is the overload relay normal Does the compressor start Compressor starts but it stops after a while E lt lt lt m m m m gt gt lt m Is the gas quantity normal NO Check the pressure Compressor is defective m See Power can not be turned on See Power can not be turned on Relays RYO1 RYO2 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 44 Replace the PC board 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 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 terminal NO 4 220 230 240 YES Is cable connection between indoor NO and outdoor u
14. Holder 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 10SKH E Owner s Manual 10SKHX Pipe Shield Remote Control Holder Remote Control Cover E Parts Terminal Cover Up Terminal Cover Down Cord Clamp Shield Cover Cord Power 12 2 Outdoor Unit Part No 28 S o 5 Description 43T19001 43T20001 43005037 43 43001 43062194 43005038 43 47004 43 46001 43 47002 43 46002 43 47003 43 46003 43 21001 1 2 3 4 5 6 7 8 Guard Fan Fan Propeller Front Cabinet Condenser Cover E Parts Back Cabinet Capillary Tube 1 7 DIA Packed Valve 9 52 Bonnet 9 52 DIA Packed Valve 6 35 Bonnet 6 35 DIA 4 Way Valve VH7100D Fan Motor UE6 21SJ5P 7 0000 0000 popp 0080 CAPILLARY TUBE Part No Description Eid a 43 47001 43046255 43 19005 43 49001 43179001 43119002 43 63001 43054403 43 41400 43055483 43 55001 43060049 Flange Nut Solenoid Coil Handle Rubber Cushion Nipple Drain Stopper Guard Holder OL Relay Relay Over Load J MRA 99269 9200 Compressor PH120T1 4C MF Capacitor 25uF 400V MF Capacitor 1 5u
15. Parts name Fan motor for indoor ICF 35 19 3 or TICF 35 19 3 Specifications Output Rated 19W 2pole 1phase 220 230 240V 50Hz 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 RYO2 DI1U Coil DC12V 75mA Rated AC250V 20A Heat exchanger sensor TC sensor microprocessor 10kQ at 25 C Line filter 101 RF 103YOR6 10mH AC 0 6A Diode DBO1 RBV 406 4A 600V Capacitor C02 CEAUF2W101M20 100uF 450V Fuse F01 MT3 T3 15A 250V Relay for outdoor fan motor solenoid coil RY03 RY04 AJQ1341 Coil DC12V 33mA Rated 1A 250V Power supply IC 01 MA2830 FJ 4A 600V Varistor R21 109 15G561K 560V Resistor R01 ERF 5TK5R6 5 6 Q SW Current trans T02 4 2 Outdoor Unit RAS 10SAH E RAS 10SAHX Parts name Compressor CT422920S 01 PH120T1 4C Specifications Output Rated 750W 2pole 1phase 220 230 240V 50Hz Winding resistance Red Black White Black at 20 4 53 8 73 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 50CMP 500V
16. 5 Hz Heat exchanger sensor open break short Overload relay trouble OPERATION TIMER and PRE DEF display Compressor trouble flashing 5 Hz Thermo sensor TA short break Heat exchanger sensor TC short break 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 The indoor part including the remote control again and try to operate the remote not possible remote control is defective operation control again Remote control is 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 38 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 ar
17. Operation The defrost operation starts whichever below conditions are specified 1 When the cumulative compressor operation time is longer than 40 or 90 minutes and difference between the indoor heat exchanger temperature and the room temperature is less than the specified value This value is decided by the microprocessor Control example is shown in Fig 7 11 1 In case of B or C the defrost operation starts 2 When the current limit control or the high temperature limit control is performed for total of 90 minutes Cumulative compressor operation time Indoor heat exchanger temp Room temp 40 90 min Fig 7 11 1 Indoor fan speed M 7 11 2 Defrost Operation Time Control sin case of B gt 1 The heating operation is performed for at least 40 minutes 2 The maximum defrost operation time is 6 minutes The defrost operation time for the 4th cycle is 10 minutes When the outdoor temperature is very low however the defrost operation time is 10 minutes minutes minutes minutes minutes 4 4 4 M Dr 9 T TE T Q 2 minutes Max 6 minutes 1 cycle Fig 7 11 2 In case of gt 1 The heating operation is performed for at least 90 minutes 2 The defrost opera
18. See Power can not be turned on See Power can not be turned on Relays RYO2 RYO4 or IC31 or IC30 is failure Correct cabling between indoor and outdoor units Cables between indoor and outdoor units are defective Solenoid coil is defective as Replace the PC board 9 3 7 Only the Indoor Fan does not Operate Preliminary checks gt Does it neither work in COOL or FAN ONLY operation Check procedure gt Shut off the power supply once Turn the power supply Does the fan stop in no operating status BO Control PC board is defective Replace the PC board YES Start the operation with low fan setting in cool operation NO Does the fan rotate YES 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 NO and turn it on after disconnecting the motor connector CN10 from the PC board Change the setting of cooling to high fan Does the cross flow fan rotate normally YES Turn on the power supply Does the fan speed X Operation become higher stops YES Is the rotation signal DC 5V 0V output between 4 blue lead wire and 2 black lead wire of the motor connector CN10 when rotati
19. figure 7 72 727 7777777777777777777 amp 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 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 Indoor unit AGS Connecting oy 995 cable Installation 2 6 plate D 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 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 30 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
20. 326 For stud bolt 28 010 66 anos For stud bolt distance to ceiling a6 16 Remote i distance to wall control holder more y 0 ci 9 E Installation late outline P 605 269 4 126 2 2 Outdoor Unit RAS 10SAH E RAS 10SAHX 600 85 225 Drain e Gas side flare 29 52 Liquid side flare 06 35 g11x14 Hole 26 Hole 8 96 Holes For fixing the outdoor unit 200 Handle 4 911x14 Long holes n 11 Fan guard 111 For anchor bolt 28 210 KA 0420 TOSHIBA Electric parts cover Njo Access for charging H n C te 268 0000006 Inlet port 45 or more 2 Inlet port DT ai 100 more Visible outline Minimum distance 9f the product the wall NI 5 Outlet 4 011 14 Long holes E port For anchor bolt 08 010 2 Center a port Mounting dimension of anchor bolt 3 WIRING DIAGRAM Section A
21. 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 or OPERATION lamp and TIMER lamp will flash 52 86 9 1 3 Misleading but Good Operations Program Controlled Operation to the contents in the Table 9 1 1 If it does it is an indispensable operation for the control and mainte The microcomputer performs the operations listed in nance of the air conditioner it is not a failure of the Table 9 1 1 to control the air conditioner If a claim is unit made on the operation check whether it corresponds Table 9 1 1 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 Description The OPERATION lamp flashes indicating that 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 8 minutes timer is actuated The compressor will not switch on or off even when the t
22. When the power is turned on the operation starts automatically 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 37 9 2 Primary Judgement of Trouble 9 2 2 Display of Abnormalities and Sources Judgement of the Abnormal Spots 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 9 2 1 Role of Indoor Unit Controller The indoor unit controller receives the operation com mands from the remote control and assumes the fol lowing functions Measurement of the draft air temperature of the indoor heat exchanger by using the thermo sen sor TA Louver motor control Control of the indoor fan motor operation Control of the LED display Control of the outdoor unit compressor 4WAY VALVE and the outdoor 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 and TIMER display flashing Wrong wiring of connecting cable 5 Hz Thermal fuse is blown OPERATION TIMER and PRE DEF display Gas shortage other refrigerant cycle trouble flashing
23. 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 circuit for U K only DO 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 Front cabinet Front panel plate Insert the remote control holder cushion between the indoor unit and wall and lift indoor unit to make work easier 72 90 2 ore Do not allow the drain hose to Mounting screw get slack 3 EP 4 on ping hole Filter frame Make sure to run the drain hose sloped downward 5 Shield pipe 9 Deodorizing filter The auxiliary piping can be 4 Remote control connected the left rear left Purifying 2j Wireless holder rear right or bottom filter remote control 600 mm or more Rear left Before install the wirel Bottom remote control E Extension H drain hose With the remote control cover open load the batteries supplied correctly observing their polarity Insulation of refrigerant pipes insulates the pipes separately not together Wireless remote control Ny En O 3 gt g a SON part
24. from thyristor fluorescent light Avoid direct sunlight NO Is there any Can any signal tone be heard in a transistor radio when transmitting within 5cm distance from the radio PC Board is failure Replace PC board beep and operation NO Remote control is failure Replace remote control Normal Note After battery replacement shortcircuit the metal terminal at the side of the battery compartment all clear terminal with a pencil Replace the batteries 48 9 4 1 How to Check the PC Board 2 Inspection procedures 1 Operating precautions 1 When PC board is judged to be defective 1 When removing the front panel or the PC board check for disconnection burning or discolora 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 49 3 Checking procedure Procedure Shut off the power suppl
25. 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 To assemble the front panel 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 operation 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 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
26. parts Q ty Q ty Installation plate x 1 Shield pipe x 1 Deodorizing filter x 1 Om Pan head wood screw Wireless remote control x 1 93 1 x 161 x 2 Purifying filter x 1 Clip anchor x 6 Batteries x 2 Filter frame x 2 Omm Remote control holder x 1 Mounting screw 04 x 25 x 6 Drain nipple x 1 Others This model is not equipped with an extension drain hose Installation manual Option For the extension drain hose use an optionally available RB 821SW or commercially available one Owner s manual 25 8 4 Indoor Unit Installation place A place which provides the spaces around the indoor unit as shown in the diagram in section 8 2 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 Aplace which allows the front panel to be opened 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 Remote control 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 T
27. remote control is changed automatically as shown in Fig 7 6 1 2 Fan speed LOW Set temp is changed 42 Set temp is changed Set temp 2H TIME 1 ECONO button is pushed Fig 7 6 1 7 6 2 Heating 1 In the ECONO mode the set temp by the remote control is changed automatically as shown in Fig 7 6 2 2 Fan speed LOW ECONO button is pushed 2H TIME Set temp Set temp is changed Set temp is changed Fig 7 6 2 7 7 Current Limit Control The microprocessor detects the input current so as to prevent it exceeds a specified value by means of controlling the outdoor fan control as described in 1 and 2 1 Current limit control Cooling Control is performed as shown below by detect ing the compressor operation current with a cur rent sensor C T Compressor Outdoor fan Input than l4 continues for 3 seconds OFF More than l3 continues for 5 minutes OFF ON Fig 7 7 1 2 Current limit control Heating Control is performed as shown in Fig 7 7 2 Compressor Outdoor fan Input More than l4 continues for 3 seconds curren OFF 10A l4 More than continues 5 minutes OFF 9A 8A 12 ON OFF 7 5A NEJ ON Fig 7 7 2 16 7 8 High Temperature Limit Control Heating Operation The microprocessor detects the indoor heat exchanger temperature
28. 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 itis firmly hooked up on the installation 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 Y C L I Push Push Fig 8 4 16 8 4 6 Drainage 1 Run the drain hose sloping downwards NOTE Hole should be made at a slight downwrd slant to the outdoor side Do not rise the drain hose Do not form the drain hose into the wared shape 7 7 2 g PA 50 2 7 E ix Ax X 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 extension drain hose insulate the connecting part of extension drain hose with 5 shield pipe 5 Drain hose Inside the room Extension drain hose Fig 8 4 18 Arrange the drain pipe for proper drainage from the unit 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
29. upper center while pushing its handle leftwards and then remove the front panel toward you 2 Remove the terminal cover and cord clamp 8 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 Tightening torque 1 2 Nem 0 12 7 Secure the connecting cable with the cord clamp 8 Fixthe terminal cover and front panel on the indoor unit Be sure to refer the wiring system diagram labeled inside the front panel Check local electrical codes and also any specific wiring instructions or limitation Terminal block Terminal U cover 2 cable Screw aboy ty Connecting cable Z Fig 8 4 9 lt Stripping length of connecting cable gt 50mm 10mm Earth line 4 Le 3 2 pe as 1 r S st For a five conductor cable NOTE Use stranded wire only Wire type More than H05 RN F Fig 8 4 10 How to install the front cabinet on the indoor unit 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
30. AC 1 5uF Running capacitor for compressor SK 40CMP25U1 400V AC 25uF Solenoid coil for 4 way valve LB60012 AC 200 240V Overload relay J MRA99269 9200 6 8 90 C OPEN 135 5 CLOSE 69 11 C 5 REFRIGERANT CYCLE DIAGRAM RAS 10SKH E RAS 10SAH E RAS 10SKHX RAS 10SAHX T1 lndoorunit __ Evaporator 1 Cooling 0 39 Connecting pipe 09 52 TEA vr MR 2 gt V ta Optional piping kits O D 9 52mm P RB P31BEF1 3m RB P51BEF1 5m 7 Packed valve Packed 09 52 26 35 gt Heating eating Cooling Compressor 120 1 4 Capillary tube Accumulator 21 7 14002 Dryer Condenser A E i Refrigerant RENTEN Lac PR Cooling Outdoor unit Mark means check points of Gas Leak k Heating Fig 5 1 Table 5 1 Standard pressure Surface temp of heat Ambient temp exchanger interchanging Fan speed Conditions DB WB Standard kg cm G 10SKH E 10SKHX pipe T1 C 10SKH E 10SKHX 40 0 indoor Indoor Outdoor Heating High temperature 1 52 0 59 0 Low temperature 35 0 Standard 12 0 Cooling High temperature 15 0
31. Auto Restart cover Press and hold down the TEMPORARY button for about 3 seconds After 3 seconds the electronic Flare nut Valve stem cap beeper makes three short beeps to tell you the connection Auto Restart has been selected To cancel the Auto Restart follow the steps described in the section Auto Restart Function of the User s Manual connections Outdoor unt Sh pow Valve stem ca connection Fig 8 6 1 Service cap connection 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 Fig 8 6 2 35 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 What to be Prechecked First 9 1 1 Power Supply Voltage The line voltage must be AC 220 230 240V 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 5 cables
32. F 500V Terminal Block 5P TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 01 JAPAN
33. L holder and pull OL relay up 4 Remove Fustons of leads 56 ki 11 CAUTIONS ON REPLACEMENT PC BOARD ASSEMBLY 1 Setthe switch SVVO3 provided on the PC board as follows ON 1 2 3 4 5 6 OFF ON KON OFF 2 Check the black lead wire is double wound around the current trans CT 02 Black f Double winding Indoor terminal block xci 55V AGND AS 8 2121 6 XTIHANII 8 8 O 1085 2 o 1031 50 XY aj AS mn 1 04 IHMe6 m 8 5 2 z CA 2 x A G2 UST Sl y 80 21 TO2 zb 12 EXPLODED VIEWS AND PARTS LIST 12 1 Indoor Unit 1 Part No Description Part No Description 43T60002 43T69004 43T69005 43T60004 43769007 Base Terminal 3P AC 300V 20A Sensor Heat Exchanger 10kQ 25 Sensor Thermostat 10kQ 25 C Fuse Temperature 77 C PC Board WRS LED MCC 635 58 43 69008 43 61001 43 62006 43 60001 43 60005 PC Board A ssy 713 Base E Parts ABS Black UL94 5V Base Shield SGCC Z08 LUB Base Terminal 2P AC 300V 20A Housing 4P Indoor Unit 2 557 A E CTI Dao D 213I e di H 5 e a im 005 1
34. LOUVER Example 40 Block level Table 9 2 4 Diagnosis function Check Block code 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 it is OK check PC board Heat exchanger sensor short break Continued operation Indicated when detected abnormal Check heat exchanger sensor If it is 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 Cable connection Thermal fuse Refrigerant System 1 Wrong wiring or disconnection of connective cable 2 Thermal fuse cut off All off Indicated when detected abnormal Check connective cable correct if wiring is wrong Check thermal fuse and Terminal blocks If itis OK check PC board 1 Gas shortage gas leak 2 Other refrigerant cycle trouble 3 Heat exchanger sensor of
35. 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 Drain guide SS 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 above 2 Remove the drain pan by pressing the four hooks downwards Keep it with the drain hose 53 Horizontal grille Note The horizontal grille can not be removed without removing the louver motor Procedure 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 Remarks 4 7 E gt CORE Louver motor PS Horizontal grille Screw Heat exchanger 1 Perform the process G 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 Hook y Pipe holder Hooks fixing the heat exchanger Shaft bearing base Screw fixing the heat exchanger
36. V 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 e 5 5277 27 gt 5 7 Reception Reception Remote lange Remote ntrol range v control Axial distance Fig 8 4 1 8 4 1 Cutting a Hole and Mounting Installation Plate Cutting a hole When installing the refrigerant pipes from the rear E e ZZ e e 1409 The center of the piping slot is the above arrow The center of the pipe hole is the above arrow Pipe hol ee 80mm Fig 8 4 2 1 After determining the pipe hole position with the mounting plate 80 mm drill the pipe hole 965 mm at a slight downward slant to the outdoor side NOTE When drilling the wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate gt For installation of the indoor unit use the paper pattern on the back Anchor bolt hole 65 5mm Pipe hole Thread Pipe hole Installation iio 8 Mounting plate Indoor unit Weight Screw Fig 8 4 3 26 When the installation plate is directly mounted on the wall gt 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 I
37. ature is shown below Room temp Set temp 1 Set temp Compressor Outdoor fan SL L se L su L Indoor fan L Super Low Fig 7 3 2 7 4 HEAT Operation MODE of the remote control HEAT 1 Relays 4 way valve outdoor fan and operation display are controlled as shown in Fig 7 4 1 pm Room temp Set temp Outdoor fan RY03 OPERATION display Fig 7 4 1 2 Relays RYO1 and RYO2 are turned on to energize the outdoor unit and a heat operation is carried out The indoor fan motor operates as shown in Fig 7 4 2 when the FAN is set to AUTO The motor operates with a constant air volume as listed in Table 7 1 1 when the FAN is set to LOW MED or HIGH RYO1 OFF 2 3 position 4 Room temp Set temp Fig 7 4 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 7 4 1 Louver Control 1 By pushing the SET button of the remote control during the operation the louver can be set to the desired position 2 When the AUTO button is pushed the louver ver tically swings within range of 25deg And the louver position is stored in the microcom puter and at the next operation the louvers will be set to the stored position automatically at the next operation 7 4 2 Cool Airflow Control
38. ay 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 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 Enter the 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 nexttable From upto 12 check operations of 2 protection circuits for each block b Operate the ON OFF key and make sure Qu check operations of the the timer lamp on the display section is typical protection circuits flashing 5 Hz Tp Table 9 2 3 Operating key Indication after operation ON OFF 71 M TEMP AN Up 1 is added to data before operation P Example E NN M 1 is subtracted from data before operation TEMP Q Down Example Eg 10 is subtracted from data before operation AUTO LOUVER Example _ V 4 gt amr NM Data before operation is directly transferred SET
39. d valve 4 Operate the vacuum pump 5b 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 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 side handle Pressure gage Low pressure side handle Charge hose A Outdoor unit ed Packed valve 33 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 Packed Valve Handling Precautions Open the valve stem all the way out so not try to open it beyond the stopper Securely tighten the valve stem cap with the wrench or like Valve stem cap tightening torque is as follows Gas pipes side 89 52 29 4 Nem 3 0 kgf m Liquid pipe side 06 35 16 2 Nem 1 7 kgf m A5 mm hexagon wrench is required Flare nut 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 wit
40. e turned on and of the clock display is flashing Note lt Cautions when doing service To perform this self diagnosis the remote 1 After completion of servicing always push the control with the service code of 43069666 all clear ACL button to return the operation is 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 How to select remote control operation mode 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 is displayed on the display and other display is turned off All clear button Switch for selecting service mode Rear bottom cover Rear bottom of remote control Fig 9 2 1 50 2 lt Self diagnosis by check codes gt 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 7 1 and The remote control displ
41. ectrical 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 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 from base E parts 55 10 3 Outdoor Unit RAS 10SAH E RAS 10SAHX 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 94 x 10 0 3 Remove the cord clamp 2 ST2T 04 x 12 0 remove the connecting cable 4 Remove the front cabinet 7 ST1T 04 x 10 with nylon washer Pull the front lower portion toward you and remove it pulling out upward Remarks Remove 7 ST1T pa x10 2 ST2T 4 x120 Capacitor for compressor 1 Remove the fixing screw securing the capacitor band 1 ST2T 94 x 8 2 2 Remove the cable connected to the terminal Refer to Electrical parts list and location in page 61 Capacitor for fan motor 1 Remove the fixing screw 1 ST2T 24 x 80 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 O
42. er 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 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 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 Never modify this un
43. er swing AUTO operation after restart 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 9 7 12 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 When the system is stand by not running OPERATION Press the TEMPORARY button Stand by continuously more than three 1 seconds 4 When the system is operating OPERATION Press the TEMPORARY button Operating continuously more than three seconds l TEMPORARY f During subsequent operation the green light is lighting 7 12 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 car
44. f break short 4 Overload relay or thermostat for compressor break All off Indicated when detected abnormal Check gas quantity check gas leakage If itis OK check heat exchanger sensor If heat exchenger sensor is OK check overload relay and thermostat for compressor If overload relay and themostat for compressor are OK check refrigerant cycle If refrigerant cycle is OK check PC board Compressor break down All off Indicated when detected abnormal 1 Check compressor 2 If it is OK check PC board Contents detected by the check codes to supply is turned off Therefore contents of operations in the past are all displayed i ci are stored in memory of the microcomputer even if the power 9 3 Troubleshooting Flowcharts 9 3 1 Power can not be Turned No Operation at All Preliminary checks 1 Is the supply voltage normal 2 Is the connection to the AC output OK Shut off the power supply from AC outlet once and turn it on after 5 seconds NO Does the OPERATION lamp flash YES Does the transmission indicator of remote control flash normally and transmit certainly YES Does the power turn on by pushing the START STOP button of the remote control NO No problem Parts R21 R109 5001 C15 C01 DBO1 02 01 01 are defective Does the fuse F01 blow Wr
45. h 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 Stripping length of connecting cable gt E 70mm Earth line m 20280 10 Connecting 60mm cable Fig 8 5 7 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 and wiring method etc Every wire must be connected firmly NOTE Wipe type More than H05 RN F ofla o 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 Flare nut connections Indoor unit as before the power failure Flare nut connections indoor unit Sis merte The product was shipped with Auto Restart function in the off position Turn it on as required Electric parts 7 How to set the
46. he indoor fan motor operates vvith a constant in volume as listed in Table 7 1 1 al Manual E g According 5 to the set E position o o E Set 0 temp 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 19 7 2 1 Louver Control 1 By pushing the SET button of the remote control during the operation the louver can be set to the desired position And the louver position is stored in the microcom puter the louvers will be set to the position automatically at the next operation 2 When the AUTO button is pushed the louver ver tically swings within range of 25deg 7 3 DRY Operation MODE of the remote control DRY 1 Compressor 4 way valve outdoor fan and operation display are controlled as shown in Fig 7 3 1 2 al 5 9 OO uc i JON E zu 8 E Set 0 temp S os 2228 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 relation Ja between room temperature and set temper
47. hermo 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 The PRE DEF lamp comes on when the heating operation is started The PRE DEF lamp comes on during defrost operation and when the indoor heat exchanger temperature is low when the heating operation is started At this time the indoor fan is stopped to prevent cold air from drifting into the room The outdoor fan stops once in the while during the heating operation When the indoor heat exchanger temperature is high the outdoor fan may be stopped by the high temperature limit control operation When the compressor current is large the outdoor fan may be stopped by the current limit control operation 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 8 min timer is active The same is true after power is turned as the time is still active During automatic operation the operation mode changes After selection of the cooling and heating operation the operation mode is selected again when the compressor off mode continues for 15 min according to the room temperature During automatic operation mode the fan only operation continues When the room temperature is within setting temperature 1 C the fan only mode is selected
48. ical Work 27 8 4 3 Wiring ci cv d dd deve sd 28 8 4 4 Piping and Drain Hose Installation aaa uaana nana ann n nenes e ne nonen eee ee eo ene sete nene neser enen t nese eee ene nenet tee me nete nenen 30 8 4 5 Indoor Unit Installation 1 eee este nenet esen ste enes tete nete nenet nnne bene nin nnn tee nente temen 31 8 4 6 31 MelloDdle 32 8 5 1 Refrigerant Piping Connection ccececne ciue uertit anrea nonae s sents cust no rant Us n s ss 33 8 5 2 VACUUM PUMPING m 33 CE NB UTDDngeuiiemm 34 e 35 8 6 1 Gas Leak Test e 35 Ha MEIIEe Cume 35 8 6 3 TTL CCCII id Qa sasi sdua au c M 35 36 9 1 What to be Prechecked First na cisciiiri ci s sossssseso ss sos sse ist cin 36 9 1 1 Power Supply Voltage ieri entier san So Sh r s uas sa Sos t s on RNE 36 9 1 2 Incorrect Cable Connection between Indoor and Outdoor Units
49. it by removing any of the safety guards of 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 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 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 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
50. necting 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 27 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 QD Green and Yellow EARTH 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 to plug terminal marked letter N Connect GREEN AND YELLOW colored core to plug terminal marked Earth Symbol How to remove the front cabinet VA A 4 Fig 8 4 6 How to open the screw 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 lou
51. nenet tere enen ennnen nanna 7 12 Auto Restart Function ecc nene nan k add nna na yag asas nnns eds sag 7 12 1 How to Set the Auto Restart cereo retenta rin r n s anaiena ra cora sesi vac sond s 7 12 2 How to Cancel the Auto Restart 44 2 1 12 nennen nnne tes natnm nin nenen meret ese 7 12 3 Case of Power Failure during the Timer Operation eese 20 21 8 1 Safety Gaulillons si 21 8 2 Installation Diagram of Indoor and Outdoor Units 23 8 3 Eo a EE A A E E E e 24 8 3 1 Optional Parts x adi v ku vde dua 24 8 3 2 Kit 25 9 10 11 12 ADM ge 26 8 4 1 Cutting Hole and Mounting Installation Plate 22 2 2 1 26 8 4 2 Electr
52. ng the cross flow fan by hand in no operating status 2 pulses one turn YES Replace the control Replace the Normal PC board fan motor 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 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 NO zy 9 4 How to Check the Remote Control Including the Indoor PC Board YES There is no beep from the indoor unit The operation lamp of the air conditioner main unit does not light NO Push the START STOP button Does the transmission indicator flash Is there direct sunlight on the receptor of the air conditioner Is there any thyristor Short circuit the metal terminal at the side of the battery compartment all clear terminal with a pencil wait about 10 seconds Is operation possible when the NO transmitter is moved nearer to the infrared signal receiver of the air conditioner YES Battery life Push the START STOP button Does the Is operation possible when setting air conditioner main unit to TEST RUN or TEMPORARY AUTO the temporary switch of the NO transmission indicator light Keep the air conditioner away
53. nits correct YES Is the voltage across the terminal NO 4 220 230 240 YES Are all the cords for outdoor NO fan motor normal YES Is the outdoor fan motor winding normal Y NO Check the winding resistance YES Is the capacitor for compressor normal YES 2 Outdoor fan motor is defective See Power can not be turned on See Power can not be turned on Relays RYO2 RYO3 or IC31 or IC30 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 45 Replace the PC board 9 3 6 Only 4 Way Valve does not Operate During Heating Operation Shut off the power supply from AC outlet once and turn it on after 5 seconds z 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 terminal NO 3 220 230 240 VAC YES Is cable connection between indoor NO and outdoor units correct YES Is the voltage across the terminal NO 3 220 230 240 VAC YES Is the wiring of solenoid coil NO for 4 way valve normal YES 4 way valve is defective
54. normal procedure YES No Power turns on Black Double winding AR Indoor Power terminal terminal block block PO board 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 2 0 Relays RYO1 RYO2 RYO3 RY04 Replace the supplied between terminal bloc 1231 or IC30 is failure PC board D 1 YES 10nly Heating mode 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 43 9 3 4 Only Compressor does not Operate Shut off the power supply from AC outlet once and turn it on after 5 seconds z 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 terminal NO CD Q 220 230 240 VAC Is cable connection between indoor NO and outdoor units correct 1 m lt m Is voltage across the terminal NO
55. nstall 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 m Anchor Y Projectio 15mm or less 5mm dia hole 3 Clip anchor B Mounting screw 24 x 251 Fig 8 4 4 Failure to firmly install the unit may result in personal injury and property damage if the unit falls n case of block brick concrete or similar type walls make 5 mm dia holes in the wall Insert 3 clip anchors for appropriate mounting screws NOTE Install the installation plate using 4 to 6 pieces of mounting screw securing four corners 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 RAS 10SKH E 50Hz 10SAH E BAS 220 230 240 10SKHX Single phase 10SAHX No adjustment is necessary Use power specified in above table This appliance can be connected to the mains in either of the following two ways 1 Con
56. 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 29 8 4 4 Piping and Drain Hose Installation In case of rightward piping 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 In case of downward gt After scribing the slit of the front panel and slit in the lower part of the rear panel by 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 13 Left hand connection with piping 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
57. ong wiring of AC cord or connecting Does the thermal Operation Check Items Main cause Countermeasure Symptom Remote control is defective Replace the remote control Replace the fuse blow Under PF Terminal cable is defective Is the indication voltage DC12V or 5V of main PC board correct NO PC board is defective Is the voltage NO Refer to the paragraph Pre check or defective circuit before power PC board block DC310V 340V Is the secondary Shut off the power Is the secondary Voltage of SW trans supply once and turn voltage of SW former T01 measured it on again after dis transformer measured DC35V DC12V connecting the motor DC35V DC12V and DC7V connector CN10 and DC7V SW transformer T01 or IC ICO1 for power supply is defective thermal fuse set Check connection Replace the main PC board Replace the main PC board 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 gt 9 3 2 Power can not be Turned after Replacing Indoor PC Board Checking Procedure Connect the AC plug Does the OPERATIO lamp flash YES isit wired ss shown Return the wiring of the in Figure below power relay is returned to the
58. 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 SEO es tdm Fig 8 5 2 2 Insert a flare nut into the pipe and flare the pipe A mm Imperial Rigid Fig 8 5 3 Tightening connection 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 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 ate valve om Flare nut T JES threaded threaded side Use a wrench Use a torque wrench to secure to tighten Fig 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 Use of vacuum pump 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 manifol
59. power cord and other parts at a height above the drain guide Wall Drain guide Space for pipes Fig 8 4 19 WE 8 5 Outdoor Unit Installation place A place which provides the spaces around the outdoor unit as shown in the diagram in page 23 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 10 m 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 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 J Installation in the following places may result in trouble Do not install the unit in such places A place full of machine oil Asaline place such as coast A place full of sulfide gas A
60. ried 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 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 20 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 pow
61. s SZ to Batteries Loop the connective cable 6 mm thick heat resisting about 100 mm in diameter polyethylene foam and 300 350 mm long 08 2 8 3 Installation Drainage 8 3 1 Optional Parts 025 Bottom plate T Parts name 42 Drain nipple Refrigerant piping Liquid side 06 35 mm Gas side 09 52 Drain hose sold separately or one on the Pipe insulating material polyethylene foam 6 mm thick market Putty PVC tapes Fig 8 3 2 Install the provided drain nipple in the hole of the Anchor bolt arrangement of outdoor unit bottom plate of the outdoor unit See the above figure 600mm Perform proper drainage processing using a drain hose sold separately or one on the market Inner diameter 16 mm Air inlet 111mm Do not use an ordinary hose on the market because it tends to get flat and as a result it prevents water from draining 230mm 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 08 or 010 anchor bolts If it is necessary to drain the defrost water from the outdoor unit attach 2 drain nipple to the bottom plate of the outdoor unit before installing it The drain nipple is located as shown above DE 8 3 2 Kit Parts Parts with an asterisk are packaged with the outdoor unit Name of parts Name of parts Name of
62. sions 770 200 Net weight 31 Condenser type Finned tube Outdoor fan type Propeller Airflow volume 1600 Fan motor output 18 Model PH120T1 4C Compressor Output 750 Safety device Fuse Overload relay Auto louver Yes Usable outdoor temperature range Specifications are subject to change without notice Note 1 Capacity is based on the following temperature conditions Condition JIS C9612 1994 Temperature Cooling Indoor unit inlet air temperature Heating 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 Indoor Unit RAS 10SKH E RAS 10SKHX Air inlet Air filter Heat exchanger 174 265 10SKH E Without power cord 10SKHX With power cord Air outlet Knock out system 232 326 232 Front panel Back body Hanger 50 IS HAS Drain hose 0 54m o Knock out system Connecting pipe 0 39m Connecting pipe 0 49m Flare 09 52 Flare 26 35 65 5 659 65 5 pn Hanger Wireless
63. so as to prevent exceeding the condensate pressure Control is performed as shown in Fig 7 8 1 Heat exchanger temperature Compressor 9 Outdoor fan 60 53 OFF a y ON k Only outdoor fan is turned off Fig 7 8 1 7 9 Lovv 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 9 1 Heat exchanger temperature Compressor Outdoor fan ON Less than 5 C continues for 5 minutes OFF Fig 7 9 1 7 10 Cool Airflow Prevention Control Heating Operation 1 During the heating operation the indoor fan speed is controlled automatically in accordance with the indoor heat exchanger temperature to prevent blowing the cool air Control is performed as shown in Fig 7 10 1 Heat exchanger temperature Indoor fan speed According to the Set position U L Ultra Low Room temp Room temp Set temp Set temp OFF S L Super Low Fig 7 10 1 2 As soon as the defrost operation starts the indoor fan stops us 7 11 Defrost Operation During the heating operation the outdoor heat exchanger temperature goes down and sometimes it is frozen In this case the air conditioner stops the heating operation and starts the defrost operation to melt ice 7 11 1 Condition to Start the Defrost
64. tage 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 operation 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 01 3 Heat exchanger sensor main PC board are defective Refer to Table 9 4 2 for the judgment of defective resistance values 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 The temperature of the heat exchanger is abnormally high
65. te nona nano nenen nenen eee nente nene ere se nenet sere ner res teme rene natns nnnm nnt nnn 47 9 4 How to Check the Remote Control Including the Indoor PC Board 48 9 4 1 How to Check the PC Board t n coe z nie ktoe demi d 49 9 4 2 PC Board Layout m 51 9 4 3 How to Reduce the Operation Time of the Anti Restart Timer 1120122 52 PART BEPLAGCEMPENTT x Ri dun 53 10 1 Indoor UN p ss sie 53 10 2 Microcomputer 55 10 3 O10 Co ole ee ee Se 56 CAUTIONS REPLACEMENT OF PC BOARD ASSEMBLY 57 EXPLODED VIEWS AND PARTS LIST 58 12 1 Indoor Unit 1 des co ere u natant run t ooo dhis si sdi dha nOn Occ sen D d Ru DRE aaan aaan 58 2 I 59 Tate ote nkl U m Y 60 12 2 UG m
66. tion time is 10 minutes 7 11 3 Ending Condition at Defrost Operation 1 When the compressor current becomes 7 5A or more during defrost operation the defrost opera tion stops and the heat operation restarts The current sensor detects the compressor current 2 The defrost operation continues for at most 6 minutes or 10 minutes DEFROST LAMP During defrost operation the PRE DEF lamp is on and the indoor and outdoor fans are off The compressor start protection timer is inter locked with the PRE DEF lamp So the PRE DEF lamp is off the fans stop for about min utes after the START STOP button is turned on When the compressor is turned on the PRE DEF lamp comes on After the heat ex changer is preheated to about 30 or higher the PRE DEF lamp goes off and the indoor fan starts 18 7 12 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 When the system is stand by not running OPERATION Press the TEMPORARY button Stand by continuously more than three 1 seconds
67. ver 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 T 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 How to connect the power cord 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 Connect and secure the power supply cord and secure the cord clamp and the terminal cover 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 T LE m 7 Earth line 9 Fig 8 4 7 Stripping length of power cord 30mm n edic a f e d id Q 10mm Earth line 40mm NOTE Use standard wire only Wire type More than H05 RNF Fig 8 4 8 28 How to connect the connecting cable gt 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
68. y 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 Causes 1 Application of shock voltage Overcurrent 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 2 and pin 1 of 4 220 230 240V AC 3 Between 2 and pin of 04 220 230 240V AC 4 Between and of C02 810 340V DC 5 Between 35V and 6 Between 12V and 7 Between 5 TP2 GND GND GND 1 AC povver cord is defective Poor contact of the terminal plate Miss vviring of the povver relay 2 Fuse is defective 3 Operation of the thermal fuse 4 Capacitor 01 C15 is defective Line filter LO1 is defective Resistor RO1 is defective Diode DBO1 is defective 5 1C01 02 TO1 are defective 6 1C01 ICO2 TO1 FO3 are defective 7 1C01 02 TO1 FO2 029 ICO3 are defective Make the operation status by pushing once the START STOP button except the status of FAN ONLY ON TIMER Voltage check 1 Vol
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