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SERVICE MANUAL

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1. This setting helps to shortern compressor waiting period when operate cool heat or dry mode A compressor suddenly starts one order of Remote controller is received _81 FILE NO SVM 12071 11 8 2 P C Board Layout T3 15A 250V 4 g c 15 ymi 401 Citi 1 Sensor characteristic table Resistance value O 40 TD Discharge temp sensor 30 TA Room temp sensor 90 0 TC Heat exchanger temp sensor Outdoor temp sensor p BAs TE Outdoor heat exchanger temp sensor 0 TS Suction temp sensor 10 20 30 40 50 Temperature C AR FILE NO SVM 12071 11 8 3 Indoor Unit Other Parts No 1 3 Indoor fan motor Room temp TA sensor Heat exchanger TC sensor Louver motor MSBPC20F04 11 8 4 Outdoor Unit No Part name Compressor Model DA131S1B 31FZ RAS 18N3AV E Model DA150A1F 20F RAS 22N3AV E Outdoor fan motor Model ICF 14
2. A 28 108 125 600 do cfe a e 36 R1 5 a IN P Mrs 2 iTi 5 2 Q6 hole Y 22 R5 5 Ta A detail Drawing Back leg pM 25 Drain outlet 2 211 x 14 Hole For 08 4210 anchor FAN GUARD 436 e L TOSHIBA to LO T Y 290 90 600 90 69 N 3 HE e NS Ne 7 View 22 600 100 Airintlel os 600 or more eM e 22 Air outlel 100 or more M puer mate 22 FILE NO SVM 12071 Je 6 hole p 36 R15 11x14 hole 50 B Detail Drawing Front leg
3. 40 Quiet mode is the system which control the revolving speed of indoor fan to work constantly at lower than speed L In addition noise level of indoor unit is less than usual Remarks 1 Quiet mode is unable to work in dry mode 2 Quiet mode is appropriate to work with less cooling load and less heating load condition Because of the fan speed L may cause not enough the cooling capacity or heating capacity The principles of comfort sleep mode are Quietness for more comfortable When room temperature reach setting temperature Save energy by changing room temperature automatically The air condition can shut down by itself automatically Remarks 1 Comfort sleep mode will not operate in dry mode and fan only mode Purpose To start the unit immediately for the purpose of testing trial etc short timer can be used maintenance of the unit Short Timer Setting D Push 1 button to turn the unit OFF 9 Set the operation mode or plasma air purifier on the remote controller without sending the signal to the unit Use the tip of the pencil to push the CHK button and hold 00 will show on display then push SET button to make 00 disap pear Push 1 button to turn the unit ON amp When short timer is activated all setting on the remote controller operat
4. Alphanumeric characters are used for the check codes b is 5 is 6 H is A h L is d is D PRESET 5 Jil v J rr a cc M Press CHECK button with a tip of pencil to set the remote controller to the service mode fil is indicated on the display of the remote controller Press ON A or OFF A button If there is no fault with a code the indoor unit will beep once Beep and the display of the remote controller will change as follows he TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check codes to 3 as shown in Table 11 3 1 e Press or OFF V button to change the check code backward If there is a fault the indoor unit will beep for 10 seconds Beep Beep Beep Note the check code on the display of the remote controller 2 digits alohanumeric will be indicated on the display All indicators on the indoor unit will flash 5 times per 1 sec Press CLR button After service finish for clear service code in memory e 7F is indicated on the display of the remote control Press button to release the service mode The display of the remote controller returns to as it was bef
5. 92 _ COVER PV ac e e 7 Sf 3 320 342 5 5 Liquid side HT HL Flare 26 35 Gas side Flare 212 7 24 Service port 2 R5 5 x 17L Ushape Pa For 2 8 10 anchor 2 011 x 14 Long holes For 28 210 anchor bolt Installation dimension 16 5 1 Compressor 9 Reactor 1 Wireless Unit Assembly WP 027 co cs RED P04 OR 148 BLU BLU 168 BLU i BLU gt IN 9253 2 OS BLU__fayo W 5 WIRING DIAGRAM Indoor Unit Outdoor Unit Reactor B 201 Fuse T3 15A AC 250V Varistor Main P C Board MCC 5045 P18 1 yi P11 EE Power TD VaN N 212 Line Filter Varistor Surge 4 way Valve d rue FO3 Fuse 250V T3 15A F01 Fuse MCC 5009 FILE NO SVM 12071 Suction pipe Temp Sensor
6. 2 Set the desired temperature 3 COOLING HEATING FAN ONLY OPERATION To automatically select cooling or fan only operation 1 Presso Select Cool x Heat or Fan only 2 Press Set the desired temperature Cooling Heating Min 17 C Max 30 C Fan Only No temperature indication 3 Press E Select AUTO LOW LOW MED aaf HIGH ull 44 DRY OPERATION COOLING ONLY For dehumidification a moderate cooling performance is controlled automatically 1 Press Ium TEMP 2 Press Set Select Dry the desired temperature OPERATION To automatically control room temperature and airflow for faster cooling operation except in DRY and FAN ONLY mode Hi POWER Press Start and stop the operation ECO OPERATION To automatically control room to save energy except in DRY and FAN ONLY mode Press 200 Start and stop the operation FILE NO SVM 12071 Note Cooling operation the set temperature will increase automatically 1 C hour for 2 hours maximum 2 C increase Heating operation the set temperature will decrease TEMPORARY OPERATION In case of the mi
7. S Fig 10 3 13 How to install the drain hose Firmly insert drain hose connecting part until hitting on a heat insulator and fix it with a screw How to remove the drain hose e The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose When removing the drain hose be careful of any sharp edges of steel plate The edges can injuries install the drain hose insert the drain hose firmly until the connection part contacts with heat insulator and the secure it with original screw Heat insulator Drain hose Fig 10 3 14 55 How to attach the drain cap 1 Insert hexagon wrench 4 mm in a center head 4 mm Fig 10 3 15 2 Firmly insert drain cap No gap ANS T Do not apply lubricating oil refrigerant machine oil when inserting the drain cap If applied deterioration and drain leakage of the drain Insert a hexagon wrench 94mm Ar E Fig 10 3 16 How to attach the drain hose Always use the original screw that secured the drain hose to the unit If using a different screw may cause water to leak Insert the drain hose firmly until the connector contacts with the insulation then secure it in place using the original screw CAUTION Firmly insert the
8. _ S u A 249 90 600 Drain outlet Fig 10 2 1 e Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind e Use 28 mm or 210 mm anchor bolts and nuts e f itis necessary to drain the defrost water attach drain nipple 9 and cap water proof 40 to the bottom plate of the outdoor unit before installing it 49 FILE NO SVM 12071 10 2 2 Accessory and installation parts Flat head wood screw Installation plate x 1 23 1x25 x1 Wireless remote control x 1 Battery cover x 1 Battery x 2 Filter x 1 Screw 24 x 10 x2 Owner s manual Installation manual Mounting screw 24 x 25 x 6 gt Flat head wood screw 03 1 162 x2 Cap water proof x 2 The part marked with asterisk is packaged with the outdoor unit _ 50 FILE NO SVM 12071 10 2 3 Installation Servicing Tools Changes in the product and components In the case of an air conditioner using R410A in order to prevent any other refrigerant from being charged accidentally the service port diameter of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 20 threads per inch e In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed for c
9. TO gt 60 gt a l S 3 minutes Delay start 3 minutes stop counting from power supply ON or remote Voltage variation stop OFF or have not voltage O output I 9 15 0 3 4 7 8 Time Min Signal send only 1 minute and stop Because of return signal from outdoor unit has not received Signal resend again after 3 minutes stop And the signal will send continuously 1 minute after resending the indoor unit display flashes error 70 FILE NO SVM 12071 Action and Judgment 1 to 3 The outdoor unit never operate Check connecting cable and correct if defective wiring Check 25A fuse of inverter P C board Check 3 15A fuse of inverter P C board Check operation signal of the indoor unit by using diode Measure voltage at terminal block of the indoor unit between No 2 and No 3 or L2 and S If signal is varied 15 60V continuously replace inverter P C board If signal is not varied replace indoor P C board 4 The outdoor unit abnormal stop at some time f the other check codes are found concurrently check them together Check protector hardware such as Hi Pressure switch Thermal Relay etc Check refrigerant amount or any possibility case which may caused high temperature or high pressure Check operation signal of the indoor unit by using diod
10. Capacity Ratio 100 5 8kW RAS 18N3KV E 7 RAS 22N3KV E 5 0kW RAS 18N3KV E Capacity Ratio 100 6 0kW RAS 22N3KV E 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor Temperature C Outdoor Temperature C FILE NO SVM 12071 3 REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC R410A which does not damage the ozone layer The working pressure of the new refrigerant R410A is 1 6 times higher than conventional refrigerant R22 The refrigerating oil is also changed in accordance with change of refrigerant so be careful that water dust and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time The next section describes the precautions for air conditioner using the new refrigerant Conforming to contents of the next section together with the general cautions included in this manual perform the correct and safe work 3 1 Safety During Installation Servicing As R410A s pressure is about 1 6 times higher than that of R22 improper installation servicing may cause a serious trouble By using tools and materials exclusive for R410A it is necessary to carry out installation servicing safely while taking the following precautions into consideration 1 Never use refrigerant other than R410A in an air conditioner which is designed to opera
11. Gas amount check and valve clogging check Remove TC sensor connector from the P C board in indoor unit Remove connector from the P C board Operate the air conditioner in COOL mode by RESET button on indoor unit sound is heard if keeping pushed RESET button for 10 seconds The operation enters temporary operation mode which fixes opening degree of compressor speed Check condensation at outlet of PMV and then check operating pressure from the service port Existence of condensation at outlet of P M V YES If there is condensation at outlet 1 4 inch 6 35mm valve side Replace valve the valve is clogged Check the operating pressure from service port and add gas if pressure is low Add gas 7 a 11 7 How to Diagnose Trouble in Outdoor Unit Check Power Supply Voltage Rate 10 Turn OFF power supply Remove connector of compressor Check 25A fuse F01 failure NO YES Check component parts of control board assembly by visual damage burn Etc NO YES Replace control board Replace fuse Turn ON power Supply Check terminal Voltage of electrolytic capacitor are in Voltage Rate 10 x 1 414 NO YES Replace control board Turn ON the unit by remote controller and wait for 3 min Cooling 17 C 764 FILE NO SVM 12071 e Connect discharge resistance approx 100 40W or soldering iron
12. 42 FILE NO 12071 9 3 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Hepeat the setting procedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the system is on stand by not operating _________ ______ Push RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times and continues to operate If the unit is not required to operate at this time push RESET button once more or use the remote controller to turn it off Push RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times If the unit is required to operate at this time push RESET button once more or use the remote controller to turn it on 9 3 3 Power Failure during Timer Operation When the unit is turned off because of power failure during timer operation the timer operation is cancelled In that case set the timer operation again NOTE The Daily Timer is reset while a comma
13. Outdoor Temp Sensor TD Discharge pipe Temp Sensor PER Condenser pipe Temp Sensor pese Power Power Supply From Main Line Power Supply Circuit lt of Y a IN S 7 O IN ZN ZN 2 GRN amp YEL Fan Motor 7 4 Motor FILE NO SVM 12071 6 SPECIFICATIONS OF ELECTRICAL PARTS 6 1 Indoor Unit Fan motor for indoor MF 340 30 3 DC340V 30W Room temp sensor TA sensor 10kQ at 25 C Heat exchanger temp sensor TC sensor 10kQ at 25 C 6 2 Outdoor Unit Heat exchanger temp sensor TE sensor 10kQ 25 C Terminal block 5P JXO 5B 20A AC250V RAS 18N3AV E DA131S1B 31FZ Compressor 3phases 4poles 1100W RAS 22N3AV E DA150A1F 20F 9 Coil for PMV CAM MD12TCTH 5 DC12V 10 RAS 18N3AV E STF 01AJ646A1 Coil for 4 way valve AC220 240V RAS 22N3AV E STF 01AJ503K1 foe FILE NO SVM 12071 7 REFRIGERANT CYCLE DIAGRAM 7 1 Refrigerant Cycle Diagram RAS 18N3KV E RAS 18N3AV E Temp measurement INDOOR UNIT p ED cr ee Indoor heat exchanger LL gt Cross flow fan 26 9 Max 20m 9609335 T Min am Pressure measurement 7 Deoxidized copper pipe
14. Please check that the accessories shown in the right table are packed 1 Cut the sensor 100 mm longer than old UE nere 2 Cut the protective tube after pulling out sensor part Connector it 200 mm FE Fdl 3 Move the protective tube toward the 200 Cutting here thermal sensor side and tear the tip of NM NUES DM lead wire in two then strip the covering 5 N part 4 Pass the stripped part through the a thermal constringent tube conu 5 Cut the old sensor 100 mm length on lt the connector side and recycle that Cutting here connector 00 6 Tear the lead wire two on the con nector side and strip the covering part 7 Twist the leads on the connector and sensor sides and solder them 8 Move the thermal constringent tubes s toward the soldered parts and heat them with the dryer and constring m v ad them 9 Wind the attached color tape round the Bower both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again AS Soldered part Winding the color tape 1 Store the joint part of the sensor and the connector in the electric parts box 2 Never joint them near the thermal sensor part Otherwise it would cause insulation inferiority because of dew drops 3 When replacing the sensor using the colored protective tube wind the color tape matching the color of that tube Patsmme Qty Remarks
15. H on the remote controller the operation is per formed with the constant speed HEAT ON shown in Fig 3 and Table 1 2 When setting the fan speed to AUTO on the remote controller MANUAL revolution of the fan motor is Fig 3 controlled to the fan speed level shown in Fig 5 according to the set Fan speed temperature and room temperature W8 3 Min air flow rate is controlled by M 2 temperature of the indoor heat AUTO exchanger Tc as shown in Fig 4 Moa 4 Cold draft prevention the fan speed M H 2 is controlled by temperature of the H ama indoor heat exchanger Tc as shown in Fig 6 YES 5 In order t t Cold draft wh gt 42 C Min air flow rate control operation Then louver will move to NO upper position and fan speed will Limited to Min WD tap reduce or off No limit Fan speed TC 42 10 x WD W8 W8 Fig 4 operation 1 in down operation 0 Cold draft preventive control Basic fan control Fan speed AUTO Line approximate H and SUL with Tc Stop Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting cM No limitation while fan speed MANUAL mode is in stability 2 Fan speed M L x 2 4 L Mos 3 Fan speed M L x 3 4 L a i s 24 A is 24 and when Tsc 24 A is Tsc Calculated with linear approximation from M and L
16. temperature arrives at the set temperature Table 11 1 1 The OPERATION lamp of the indoor unit flashes when power source is turned on If 0 button is operated once flashing stops Flashes also in power failure The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found after power source has been turned on because 3 minutes timer operates The air flow indication is fixed to AUTO For smooth operation of the compressor the compressor motor speed is restricted to Max 41 rps for 2 minutes and Max 91 rps for 2 minutes to 3 minutes respectively after the operation has started After selecting Cool or Heat mode select an operation mode again if the compressor keeps stop status for 15 minutes The compressor motor speed may decrease by hightemp release control Release protective operation by temp up of the indoor heat exchanger or current release control FILE NO SVM 12071 11 2 Primary Judgment To diagnose the troubles use the following methods 1 Judgment by flashing LED of indoor unit 2 Self diagnosis by service check remote controller 3 Judgment of trouble by every symptom Firstly use the method 1 for diagnosis Then use the method 2 or 3 to diagnose the details of troubles 11 3 Judgment by Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner if the protective circuit operates
17. 9 101 FILE NO SVM 12071 13 EXPLODED VIEWS AND PARTS LIST 13 1 Indoor Unit Part E 43150308 SENSOR HEAT EXCHANGER 43169721 PC BOARD ASSY 43160331 TERMINAL 3P For RAS 18N3KV E 43169320 TEMPERATURE SENSOR 43169722 PC BOARD ASSY 43162003 CORD CLAMP For RAS 22N3KV E 43T6V316 PC BOARD ASSY WRS LED 43121434 STEPPING MOTOR 43160386 MOTOR CORD 102 FILE NO SVM 12071 13 2 Indoor Unit Location m Location Description Description No No 224 43121428 FAN MOTOR 43139022 BAND MOTOR RIGHT UP 43122312 BEARING ASSY MOLD 43109040 LOUVER HORIZONTAL 43170313 HOSE DRAIN 43103014 BODY ASSY BACK 43120016 FAN ASSY CROSS FLOW 43144030 EVAPORATOR ASSY 43149010 PIPE SHIELD For RAS 18N3KV E 43183305 HOLDER REMOTE CONTROL 43144031 EVAPORATOR ASSY 43782008 PLATE INSTALLATION For RAS 22N3KV E 43119333 HOLDER SENSOR 43T09471 GRILLE OF AIR INLET ASSY 43149043 HOLDER PIPE 43180331 FILTER AIR 43139021 BASE BEARING 43100586 FRONT PANEL ASSY 43179313 CAP DRAIN 43162031 COVER TERMINAL 43139020 BAND MOTOR LEFT 43166315 WIRELESS REMOTE CONTROLLER 43139023 BAND MOTOR RIGHT DOWN 108 FILE NO SVM 12071 13 3 Outdoor Unit DEEST ESSE RE EE i Cat oes eS ES en 14 10 12 31 HOLDER SENSOR For PIPE OD 6 35 mm 32 HOLDER SENSOR TD For PIPE OD 8 00 mm 33 HOLDER SENSOR TS For P
18. 9q JOLOAU c oq yno 99 uano jueuno ov 19149AUO2 ANd 19 10595 ZHINT 0019 yun uoneoiunuJuJoo JeUBIS e e 25 e 10 ANd UOI OUNJ Jo149Au00 e 0199409 10128 JoJ1uoo JoopinQ 12 JUSIIND JOAO G5 ese9o aJ JUDIING 1ndu e uonounj siseuju S e NOW 92 600892IN INVHOVIG 12018 lOHLNOO jueJ1no 1ndu 401991409 10128 JO IF yun 1oopu k m 2 09 0 2 09 0 Ajddnsg i Josues duiej Josues uonong Josues JOOPINO Josues oDJeuosiq HOOQNI 103 _23 FILE NO SVM 12071 9 OPERATION DESCRIPTION 9 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner which uses DC motor for the indoor fan motor and the outdoor fan motor And the capacity proportiona
19. 2 Fan speed 400 YES OFF status of table is selected when the motor stopped fan motor continues 1 Outdoor unit operation command Outdoor fan control NO Fan motor ON YES Air conditioner Alarm NO 4 Motor operates as shown in the table below In cooling operation In Heating operation P Compressor speed rps MIN To gt 10 C m gt Tb During ECO mode When Tois abnormal 1D fD fD During ECO T Outdoor fan speed rpm RAS 18N3AV E RAS 22N3AV E 750 FILE NO SVM 12071 4 Capacity The cooling or heating capacity depending on the load is 1 The difference between set control adjusted temperature on remote controller According to difference between the setup value of tempera Ts and room temperature Ta ture and the room temperature the capacity is adjusted by Is calculated the compressor revolution 2 According to the temperature difference the correction value of Remote controller Indoor unit Hz signal which determines the compressor speed is set up Set temp Ts Room temp T pe 3 The rotating position and speed of the motor are detected by the electromotive force occurred on of the compressor C sianal 4 According to the difference resulted from comparison of the correction value of Hz signal with Detection of electromotive force the present operation Hz the of compressor motor winding inverter output and the commuta tion
20. Outdoor fan drive system error 2 Cause The following causes are considered when the outdoor fan motor does not normally rotate 1 Mechanical lock of the outdoor fan motor 2 Winding failure of the outdoor fan motor 3 Position detect circuit failure inside of the outdoor fan motor 4 Motor drive circuit failure of the outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad Turn OFF the breaker Disconnect two connectors CN300 of the outdoor fan motor from the outdoor P C board Does the fan rotate without trouble NO when rotating it with hands If the resistance value between Red lead White lead White lead Black lead Black lead Red lead of the connector CN300 Motor winding is 20 to 220 it is normal YES Fan motor is normal Fan motor error Outdoor P C board error NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor FILE NO SVM 12071 12 HOW TO REPLACE THE MAIN PARTS WARNING e Since high voltages pass through the electrical parts turn off the power without fail before proceeding with the repairs Electric shocks may occur if the power plug is not disconnected After the repairs have been completed after the front panel and cabinet have been installed perform a test
21. Setlouver button FIX 9 On timer button ON 7 I 5 9 timer button OFF 3 bene xe gue Ce Setup button SET 15 uj 14 AD Clear button CLR f Es 3 2 Memory and Preset button PRESET S o Y 3 One Touch button ONE TOUCH wate nS 2 High power button 19 18 5 Economy button ECO Quiet button QUIET 47 QJ Note he provided Remote Controller is a wireless type which also can be used as a wire Please see How to Connect The Remote Controller for Wired Operation located in installation instruction in case of wired control is required n wire operation remote controller will return to initial condition PRESET TIMER and CLOCK will return to initial condition when user shutdown power supply of Air conditioner 9 4 2 Operation of remote control 1 ONE TOUCH Press the ONE TOUCH button for fully automated operation that is customised to the typical consumer preferences in your region of the world The coutomised settings control temperature air flow strength air flow direction and other settings to provide you alternate contact with ONE TOUCH OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit Press Start the operaton 2 AUTOMATIC OPERATION To automatically select cooling or fan only operation 1 Select
22. When the Nitrogen gas is flowing be sure to keep the piping end open 5 Adjust the flow rate of Nitrogen gas so that it is lower than 0 05 m Hr or 0 02 MPa 0 2kgf cm by means of the reducing valve 6 After performing the steps above keep the Nitrogen gas flowing until the pipe cools down to a certain extent temperature at which pipes are touchable with hands 7 Remove the flux completely after brazing Flow meter Stop valve Nitrogen gas cylinder From Nitrogen cylinder oS PEL N Nitrogen gas Rubber plug Fig 3 5 1 Prevention of oxidation during brazing j FILE NO SVM 12071 4 CONSTRUCTION VIEWS 4 1 Indoor Unit Grille Inlet Air filter Front Panel N LO Air outlet Knock out system 172 278 200 222 200 150 149 17 5 Remote controller holder Drain hose 0 5m Hanger Hanger Connecting pipe 0 39m Connecting pipe 0 49m Flare 0 12 70 Flare 26 35 For stud bold 26 For stud bold 8 10 Installation plate outline oe 4 2 Outdoor Unit
23. put on the side cabinet Fit the corner of the water proof cover to the corner of the front cabinet This line shall be pavallel to the front cabinet This part shall cover the gap between the inverter box and the front cabinet How to mount the water proof cover FILE NO SVM 12071 Lee Q Front cabinet 1 Detachment 1 Perform step 1 in Ep 2 Remove the fixing screws ST1T 4 x 10L RSEN 2 pcs used to secure the front cabinet tierce SX and inverter cover the screws ST1T 4 7 VP x 10L 4 pcs used to secure the front en A cabinet at the bottom and the fixing screws 5 1 4 x 10L 2 pcs used to QUT A secure the motor base 5E The front cabinet is fitted into the side WP gt cabinet left at the front left side so pull up the top of the front cabinet to remove it 2 Attachment 1 Insert the claw on the front left side into filz ERE the side cabinet left 2 Hook the bottom part of the front right wh side onto the concave section of the P bottom plate Insert the claw of the side IT cabinet right into the square hole in the NA A front cabinet d 3 Return the screws that were removed above to their original positions and attach them Ne I Concave section 94 FILE SVM 12071 __ Inverter 1 Perform w
24. 22 57 FILE NO SVM 12071 Information The lower part of indoor unit may float due to the condition of piping and you cannot fix it to the installation plate In that case use the screws trovided to fix the unit and the installation plate Fig 10 3 23 10 3 7 Drainage 1 Run the drain hose sloped downwards NOTE he hole should be made at a slight downward slant on the outdoor side Do not form the drain hose into the waved shape 1 t AX IEX 4 4 g 6 pu Do not put the drain hose end in the drainage ditch Do not rise the drain hose A ene Do not put the drain hose end into water AX Fig 10 3 24 2 Put water in the drain pan and make sure that the water is drained out of doors 3 When connecting extension drain hose insulate the connection part of extension drain hose with shield pipe Shield pipe id S Drain hose Inside the room Extension drain hose Fig 10 3 25 CAUTION Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping 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 Fig 10 3 26 58 FILE NO SV
25. Auto Restart Function To set the auto restart function proceed as follows The power supply to the unit must be on the function will not set if the power is off Push the RESET button located in the center of the front panel continuously for three seconds The unit receives the signal and beeps three times The unit then restarts operating automatically in the event of power supply being accidentally shut down When the unit is stand by Not operating r Push RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times The green indicator flashes and continues to operate for 5 seconds If the unit is not required to operate at this time push RESET button once more or use the remote controller to turn it off Push RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times The green indicator flashes for 5 seconds If the unit is required to operate at this time push RESET button once more or use the remote controller to turn it on e While the filter check indicator is on the RESET button has the function of filter reset button
26. B 5 m Gauge attaching port Outer dia Spa 3 16 t6 20m iu Vacuum pump connecting port Thickness 0 8mm un IE Sectional shape IE lt Deoxidized copper pipe Ir of heat tpa ud Ir Outer dia 12 7 Ld Thickness 0 8mm x 4 Bb 3 ee otrainer 4 way valve STF 0108 Z am Muffler Y YW Pulse Modulating valve Muffler 9 at liquid side CAM BD16TCTH 2 Accumulater tank Compressor DA131S1B 31FZ C Outdoor heat Split capillary 2 dia 1 2 x 80 OUTDOOR UNIT NOTE W Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating NOTE The maximum pipe length of this air conditioner is 20m When the pipe length exceeds 15m the additional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g dO FILE NO SVM 12071 RAS 22N3KV E RAS 22N3AV E Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Outer dia e Thickness 0 8mm 4 way valve STF 0213 Z Accumulater tank H NOTE Temp measurement INDOOR UNIT p a A ce Dm
27. Check DC voltage with CN31 connector while the fan motor is rotating NOTE Do not disconnect the connector while the fan motor is rotating Use a thin test rod Indoor fan starts rotating when power supply is turned on P C board CN31 Y Check output DC voltage of fan motor on P C board 6 Blue Yellow 5 Yellow Measure voltage between 8 GND BLACK 4 White and 5 V line YELLOW of motor connector CN31 3 Black while indoor fan motor is rotating 2 _ 1 Red DC 1 0V or more Under DC 1 0V P C board is defective Motor is defective Replace P C board Replace motor FILE NO SVM 12071 5 Troubleshooting for remote controller Primary check Check that A or B selected on the main unit is matched with A or B selected on the remote controller The unit does not beep at all Push the 5 button Operation lamp on indoor unit is not indicated Is transmission NO mark indicated YES Reset by take off battery the push 0 button till LCD indication disclear put battery again Is receiver on indoor unit exposed to direct sunlight YES NO Does indoor unit operate when moving remote controller near receiver or indoor unit Is there any fluorescent light nearly NO NO YES YES Batteries are exhausted Push the 05 button NO Does A C operate by push RESET button of indoor unit Is transmission NO mark indicat
28. FILE NO SVM 12071 roca ENT RN Fan motor 1 Follow to the procedure till item 2 Loosen the set screw of the cross flow fan 3 Remove two fixing screws of the motor cover them remove the motor cover 4 Remove two more fixing screws of the 4 motor band and remove the motor band Set screw Two screws on Two screws on motor cover motor band 5 Pull the fan motor outward 91 FILE NO SVM 12071 Parame IT Cross flow fan Caution at reassembling 1 To incorporate the fan motor remove the fan motor rubber at shaft core side incorporate the motor into the position in the following figure and then install the fan motor Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 5 mm from wall of rear plate of the main unit Holding the set screw install the cross flow fan so that U groove of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two fixing screw of the motor band right into the main body position the fan motor insert it and then secure the motor band right using the two fixing screws 92 12 3 Outdoor Unit FILE NO
29. Indoor heat exchanger e 20 2 Max 20m 8 Min 2m Chargeless 15m TR So Charge 20g m Outer dia 6 35mm Thickness 0 8mm jesse d 5 1610 20 lt Sectional shape lt of heat insulator E C APER EE _ uM E E E EE otrainer Pulse Modulating valve at liquid side 16 2 Compressor DA150A1F 20F Split capillary Outdoor heat 1 dia 2 x 1004 exchanger 2 4 2x 66 gt Distributor Propeller fan Refrigerant amount 1 40kg OUTDOOR UNIT NOTE W Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating The maximum pipe length of this air conditioner is 15m When the pipe length exceeds 15m the additional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g 20 FILE NO SVM 12071 7 2 Operation Data Cooling Tempeature Standard Heat exchanger Indoor Outdoor Compressor E Model name RAS pressure pipe temp fan mode fan mode revolution Indoor Outdoor P MPa rps 27 19 35 24 18N3KV E 0 9 1 1 111013 40to 42 High High 22N3KV E 0 910 1 1 11to 13 41 to 43 Heating Tempeature Standard Heat exchanger Indoor Outdoor Compressor Model condition C RAS pressure pipe temp fan mode fan
30. Most of fluxes generally used for silver brazing are this type It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride potassium chloride and sodium fluoride to the borax boric acid compound 4 Piping materials for brazing and used brazing filler flux Do not enter flux into the refrigeration cycle When chlorine contained in the flux remains within the pipe the lubricating oil deterio rates Therefore use a flux which does not contain chlorine When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water Remove the flux after brazing FILE NO SVM 12071 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring in the pipe interior during brazing it is effective to proceed with brazing while letting dry Nitrogen gas N2 flow Never use gas other than Nitrogen gas 1 Brazing method to prevent oxidation 1 Attach a reducing valve and a flow meter to the Nitrogen gas cylinder 2 Use a copper pipe to direct the piping mate rial and attach a flow meter to the cylinder 3 Apply a seal onto the clearance between the piping material and inserted copper pipe for Nitrogen in order to prevent backflow of the Nitrogen gas 4
31. OF COMBUSTIBLE GAS OR 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 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEATERS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT R410A 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 WHEN INSTALLING OR RE INSTALLING THE AIR CONDITIONER DO NOT INJECT AIR OR OTHER SUBSTANCES BESIDES THE DESIGNATED REFRIGERANT R410A INTO THE REFRIGERATION CYCLE IF AIR OR OTHER SUBSTANCES ARE MIXED AN ABNORMAL PRESSURE CAN OCCUR IN THE REFRIGERATING CYCLEL AND THIS CAN CAUSE AN INJURY DUE TO A PIPE RUPTURE FILE NO SVM 12071 WARNING Installation work must be requested from the supplying retail dealership or professional vendors Self installation may cause water leakage electrical shock or fire as a result of improper installation Specified tools and pipe par
32. RESET button pushed for 10 seconds or more th 2 When keeping RESET button pushed for temporary COOL operation is performed 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed Filter lamp ON Push RESET button 3 When keeping RESET button pushed for NO 10 seconds or more Pi sound is heard and the temporary COOL operation i Temporary AUTO operation starts 4 If the filter lamp goes on push RESET YES button to go off the filter lamp and then Did you push RESET button YES push RESET button again for 10 seconds or more 5 To stop the temporary operation push the NO button again Switch to AUTO RESTART control Temporary COOL Operation 11 Discharge temperature control 1 Purpose This function detects error on the Control operation refrigerating cycle or error on the com 11792 Judges as an error and stops the compressor pressor and performs protective control 142 C Reduce the compressor speed 2 Operation Reduce slowly compressor speed Control of the compressor speed 108 C meen Ga POmDIOSSUPEPESH The speed control is performed as 105 C P P Bue described in the left table based upon If the operation is performed with lower speed than one the discharge temperature commanded by the serial signal speed is slowly raised up to commanded speed Operates with speed commanded by the serial signal FILE NO SVM 12071 12 Pul
33. SVM 12071 LO Common 1 Detachment procedure Wear gloves for this job Otherwise you may injure your hands on the parts etc 1 Stop operation of the air conditioner and turn off the main switch of the breaker for air conditioner 2 Remove the valve cover ST1T 4 x 10L 2 pcs e After removing screw remove the valve cover pulling it downward 3 Remove cord clamp ST21T 4 14L 3 pcs and then remove connecting cable 4 Remove the upper cabinet ST1T 4 10L 5 pcs After removing screws remove the upper cabinet pulling it upward 2 Attachment 1 Attach the water proof cover The water proof cover must be attached without fail in order to prevent rain water etc from entering inside the indoor unit 2 Attach the upper cabinet 1 x 10L 5 pcs 3 Perform cabling of connecting cable and attach the cord clamp Fix the cord clamp by tightening the screws ST2T 4 x 14L 3 pcs fitting 2 concave parts of the cord clamp to each connecting cables 4 Attach the valve cover ST1T 4x 10L 2 pcs Insert the upper part into the square hole of the side cabinet set hook claws of the valve cover to square holes at three positions of the main unit and attach it pushing upward 93 M SSF aterproof cover Valve cover These 2 bending parts shall be put inside of a unit by bending these 2 ports X This part shall be
34. between the set and the room temperature as shown in the following figure ASSN 3 12 DRY max COOL min 6 x 5 COOL min 11 DRY max COOL min 6 x 4 COOL min 10 DRY max COOL min DRY max COOL min 6 x 2 COOL min DRY max COOL min 6 x 1 COOL min ENTM RAS 18N3KV E RAS 22N3KV E 9 8 lt Heating operation gt B zone a to cHz C 11 can change every speed Fan speed depend on presetting and T 6 x 3 COOL min C zone cHz o z N3KV E RAS 22N3KV E 10 lt Cooling operation gt 1 The control target temperature increases 0 5 C per hour up to 2 C starting from the set tem perature when ECONO has been received 2 The indoor fan speed depends on presetting and can change every speed after setting ECO operation 3 The compressor speed is controlled as shown in the left figure lt Heating operation gt 1 Setting the compressor speed to Max aHz the temperature zone in which the operation can be performed with Max cHz is gradually widened after 30 minutes passed when starting ECO operation 2 The indoor fan speed depends on presetting and can change every speed after setting ECO operation FILE NO SVM 12071 10 Temporary Pushing RESET button starts the temporary 1 When pushing RESET button the operation operation of AUTO operation When keeping temporary AUTO operation starts
35. drain hose and drain cap otherwise water may leak In case of right or left piping After scribing slits on the front panel with a knife or a making off pin cut them with a pair of nippers or an equivalent tool a I Slit Fig 10 3 17 56 FILE NO SVM 12071 n case of bottom right or bottom left piping After scribing slits of the front panel with a knife or a making off pin cut them with a pair of nippers or an equivalent tool 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 a spring bender so as not to crush the pipe Refer to the table below for the bending radius of each connection pipe Outer diameter Bending radius To connect the pipe after installation of the unit figure To the front flare Gas side R30 or less 06 35 R50 or less 012 70 015 88 Use polishing polyethylene core or the like for bending pipe Fig 10 3 19 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 pipes to the auxiliary pipes and wrap the facing tape around them CAUTION Bind the auxiliar
36. enne nnns 39 2 QUIET MOUE __ _ _____ __ 40 Io COMBORT SEBBEDP sconto 40 Te ae ENTRE 40 41 HEPOWER MOOG E eer 41 a ne oe 41 Auto Restart Function 9 3 1 How to Set the Auto Restart Function 42 9 3 2 How to Cancel the Auto Restart 43 9 3 3 Power Failure during Timer 43 Remote Controller 9 4 1 Remote Controller and Functions 44 9 4 2 Operation of Remote 44 9 4 3 Names and Functions of Indications on Remote 47 FILE NO SVM 12071 1 Basic 1 Operation control operation Receiving the user s operation condition setup the operation statuses of indoor outdoor units are controlled 1 The operation conditions are selected by the remote controller as shown in the below 2 A signal is sent by ON button of the remote controller 3 The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below 4 The indoor controller controls the indoor fan motor and louver motor 5 The indoor controller sends the operation command to the outdoor controller and sends receives the control status with a serial signal 6 The
37. outdoor controller controls the operation as shown in the left and also controls the com pressor outdoor fan motor 4 way valve and pulse motor valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Air conditioner Operation select COOL HEAT AUTO DRY Temperature setup Air direction Swing e Air volume select AUTO LOW LOW MED MED HIGH ECO COMFORT SLEEP ON timer setup QUIET e OFF timer setup PRESET Hi POWER ONE TOUCH Indoor unit Signal receiving Indoor unit control Command signal generating function of indoor unit operation e Calculation function temperature calculation Activation compensation function of indoor fan Cold draft preventive function Timer function Indoor heat exchanger release control Indoor unit control e Indoor fan motor Louver motor Operation command Serial signal send receive Outdoor unit Serial signal send receive Outdoor unit control inverter e Frequency control of inverter output Outdoor unit control Waveform composite function e Calculation function Compressor Temperature calculation Outdoor fan motor e AD conversion function e 4 way valve e Quick heating function Pulse Motor valve e Delay function of compressor reactivation PMV Current release function e GTr over current preventive function Defrost
38. remote controller 2 When the remote controller is set to the service mode the indoor controller diagnoses the operation condi tion and indicates the information of the self diagnosis on the display of the remote controller with the check codes a fault is detected all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds Beep Beep Beep The timer lamp usually flashes 5Hz during self diagnosis 11 4 1 How to Use Remote Controller in Service Mode f TOSHIBA AB X xi 2 14 11 e Pur uaa e Luci Oor ti CAM IA HiPOWER ECO CS aam a MODE SWING FAN ONE TOUCH FIX4 QUIET ECO HiPOWER SLEEP UM 4 AAA jecro3 1 5 ecl UM 4 AnA 1 5V
39. rule into the pipe hole on the wall 4 Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 15 cm from the front 5 Insert the connecting cable fully into the terminal block and secure it tightly with screws 6 Tighten firmly but not over 1 2 N m 0 12 7 Secure the connecting cable with the cord clamp 8 Fix the terminal cover rear plate bushing and air inlet grille on the indoor unit CAUTION When installing the installation plate with mounting screw do not use the anchor bolt holes Otherwise the unit may fall down and result in personal injury and property damage Installation plate Keep horizontal direction CAUTION Be sure to refer to the wiring system diagram Anchor bolt Projection labeled inside the front panel 15mm or less Check local electrical cords and also any specific wiring instructions or limitations Cord clamp Terminal block Fig 10 3 4 5 mm dia hole Earth line Mounting screw 4 x 25 a v Clip anchor icd ON local parts Fig 10 3 5 Connecting cable Earth line Connecting cable CAUTION SS 2 Failure to firmly install the unit may result in bou personal injury and property damage if the 10 unit falls Stripping length of the connecting cable In case of block brick concrete or similar type walls ma
40. surface 2 Flare Connecting Procedures and Precautions a Make sure that the flare and union portions do not have any scar or dust etc b Correctly align the processed flare surface with the union axis Tighten the flare with designated torque by means of a torque wrench The tightening torque for R410A is the same as that for conventional R22 Incidentally when the torque is weak the gas leakage may occur When it is strong the flare nut may crack and may be made non removable When choosing the tightening torque comply with values designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out Table 3 2 7 Tightening torque of flare for R410A Reference values Outer Tightening torque of diameter torque wrenches available on the market mm Nem kgfecm 14 to 18 140 to 180 16 160 18 180 Nominal diameter Tightening torque Nem kgfecm 35 to 42 930 t0 420 42 620 50 to 62 500 to 620 55 550 15 88 63 to 77 630 to 770 65 650 Ee FILE NO 12071 3 3 Tools 3 3 1 Required Tools The service port diameter of packed valve of the outdoor unit in the air water heat pump using R410A is changed to prevent mixing of other refrigerant To reinforce the pressure resisting strength flare proces
41. the contents of self diagnosis are displayed with block on the indoor unit indication section Table 11 3 1 Block display Description for self diagnosis e When turn ON power supply A EE e Power supply on after dus or OFF indicati Flashing display 1 H This flashing display is not air conditioner failure OPERATION Green Which lamp Flashing display 5 Hz Protective circuit operation for indoor P C board does flash OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for connecting cable and serial signal system OPERATION Green FILTER Orange Protective circuit operation for outdoor P C board Flashing display 5 Hz OPERATION Green TIMER Yellow Protective circuit operation for others FILTER Orange including compressor Flashing display 5 Hz NOTES 1 Some check code will flash display of the indoor unit when the air conditioner operates with some limitation 2 Some check code will flash display of the indoor unit and stop operation of the air conditioner 3 When item B and C or item B and apart of item E occur concurrently priority is given to the block of item B 4 The check codes can be confirmed on the remote controller for servicing 7 FILE NO SVM 12071 11 4 Self Diagnosis by Remote Controller Check Code 1 If the lamps are indicated as shown B to E in Table 11 3 1 execute the self diagnosis by the
42. the power cord and the connecting cable with the cord clamp 6 Attach the electric parts cover and the valve cover on the outdoor unit 10 4 5 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 e Wire type More than HO7RN F or 60245 IEC66 1 5 mm or more lt Stripping length of the connecting cable Terminal block Earth line Connecting cable Power cord Fig 10 4 9 18 Class 22 Class 220 240V Single phase 50Hz 220V Single phase 60Hz Maximum running current 10 0A 13 5A Power source Plug socket amp fuse rating 16A 16A HO7RN F or 60245 IEC66 1 5 mm Connecting cable HO7RN F or 60245 IEC66 1 0 mm e Wrong wiring connection may cause some electrical parts burn out e Be sure to comply with local cords on running the wire from indoor unit to outdoor unit size of wire and wiring method etc e Every wire must be connected firmly e This installation circuit breaker must be used specified for the power supply line of this air conditioner e f incorrect or incomplete wiring is carried out it will cause an ignition or smoke e Prepare the power supply for exclusive use with the air conditioner e This product can be connected to the mains Connection to fixed wiring A switch which disconnects all poles and has a contact separat
43. timing are varied 5 Change the compressor motor Detection of motor speed and rotor position speed by outputting power to the compressor Correction value of Hz signal lt Operating Hz The contents of control opera tion are same in cooling operation and heating operation Inverter output change Commutation timing change Change of compressor speed 5 Current This function prevents troubles on the electronic parts of the 1 The input current of the outdoor release control compressor driving inverter unit is detected in the inverter This function also controls drive circuit of the compressor section of the outdoor unit speed so that electric power of the compressor drive circuit 2 According to the detected does not exceed the specified value outdoor temperature the specified value of the current is selected Outdoor unit inverter main Outdoor temp To circuit control current 3 Whether the current value exceeds the specified value or Setup of current release point not is judged 4 If the current value exceeds the specified value this function reduces the compressor speed Operating current lt Setup value Reduce compressor speed and controls speed up to the closest one commanded from the Yes indoor unit within the range which does not exceed the specified Capacity control continues Current decrease value Cooling current Heating current release value release value Outdoor temp RAS 18N3AV E RAS 22N3
44. 0 43 4R 4 way valve coil Model STF 01AJ646A1 RAS 18N3AV E Model STF 01AJ503K1 RAS 22N3AV E Pulse motor valve coil Model CAM MD12TCTH 5 Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS outdoor heat exchanger temperature sensor TE Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Remote controller Refer to 11 5 1 5 Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position Resistance value 250 200 10 11 5 1 3 Checking procedure Measure the resistance value of each winding by using the tester DA131S1B 31FZ DA150A1F 20F Red White White Black Black Red Under 20 C Measure the resistance value of winding by using the tester Red E Measure the resistance value of winding by using the tester 1435 1440 Under 20 C Resistance value Red White 20 to 220 White Black 20 to 220 Black Red 20 to 220 Under 20 C Measure the resistance value of winding by using the tester Position Resistance value Under 20 C Disconnect the connector and measure resistance value with the tester Normal temperature TOTSTE ko 207 12 6 10 0 79 45 FILE NO SVM 12071 11 8 5 Checking Method for Each Part No __Part name __ Checking procedure Electrolytic ca
45. 3 2 1 Never use copper pipes thinner than 0 8 mm even when it is available on the market FILE NO SVM 12071 Table 3 2 1 Thicknesses of annealed copper pipes Nominal diameter Outer diameter mm R410A 2 Joints For copper pipes flare joints or socket joints are used Prior to use be sure to remove all contaminants a Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm In such a case socket joints can be used oizes of flare pipe ends flare joint ends and flare nuts are as shown in Tables 3 2 3 to 3 2 6 below b Socket Joints Socket joints are such that they are brazed for connections and used mainly for thick pipings whose diameter is larger than 20 mm Thicknesses of socket joints are as shown in Table 3 2 2 Table 3 2 2 Minimum thicknesses of socket joints Neminabdiameton Reference outer diameter of Minimum joint thickness copper pipe jointed mm mm 0m 3 2 2 Processing of Piping Materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the installed air water heat pump is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been removed When stored be sure to seal the container with an a
46. AV E RAS 18N3AV E RAS 22N3AV E 45 C 4 88A 7 05A 40 C WN 44 6 15 9 30 16 8 02 10 50 SA 11 C 15 5 C 10 5 C FILE NO SVM 12071 6 Release protective In cooling dry operation 1 When temperature of the indoor control by Prevent freezing control for indoor heat exchanger heat exchanger drops below 5 C the compressor speed is re temperature et In cooling dry operation the sensor of indoor heat indoor heat duced P zone exchanger exchanger detects evaporation temperature and controls TT the compressor speed so that temperature of the heat When temperature of the indoor exchanger does not exceed the specified value heat exchanger rises in the range from 6 C to under 7 C the compressor speed is kept Q zone Usual cooling capacity control 3 When temperature of the indoor heat exchanger rises to 7 C or higher the capacity control operation returns to the usual in Q zone the control in cooling operation compressor speed R zone is kept Reduction of compressor speed Indoor heat exchanger temperature In heating operation 1 When temperature of the indoor Prevent overpressure control for refrigerating cycle heat exchanger rises in the range In heating operation the sensor of indoor heat from 52 C to 55 C the compres exchanger detects condensation temperature and sor speed is kept controls the compressor speed so that temperature of Q zo
47. EEP IMPORTANT 5 POINTS FOR PIPING WORK 1 Take away dust and moisture Inside of the connecting pipes 2 Tight the connection between pipes and unit 3 Evacuate the air in the connecting pipes using VACUUM PUMP 4 Check gas leak connected points 5 Be sure to fully open the packed valves before operation lt Packed valve handling precautions gt e Open the valve stem all the way out but do not try to open it beyond the stopper Pipe size of Packed Valve Size of Hexagon wrench e Securely tighten the valve cap with torque in the following table Size 14 18 N m 1 4 to 1 8 kgf m 33 42 N m 3 3 to 4 2 kgf m Valve Rod us Cap H22 H30 8 12 N m ua 0 8 to 1 2 14 18 N m 1 4 to 1 8 kgf m Service Port Cap Hexagon wrench is required ue H Service Port Cap Valve Rod Cap Fig 10 4 8 61 FILE NO SVM 12071 10 4 5 Wiring connection 1 Remove the valve cover the electric parts cover and the cord clamp from the oudoor unit 2 Connect the connecting cable to the terminal as identified by the matching numbers on the terminal block of indoor and outdoor unit 3 Insert the power cord and the connecting cable carefully into the terminal block and secure it tightly with screws 4 Use vinyl tape etc to insulate the cords which are no going to be used Locate them so that they do not touch any electrical or metal parts 5 Secure
48. FILE NO SVM 12071 TOSHIBA SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Indoor Unit Outdoor Unit RAS 18N3KV E RAS 18N3AV E RAS 22N3KV E RAS 22N3AV E September 2012 FILE NO SVM 12071 CONTENTS SAFETY PRECAUTIONS 2 quel 5 REFRIGERANT H410OB rci 7 CONSTRUC FION VIEWS ee x enda 15 WIRING DIAGRAM e E 17 SPECIFICATIONS OF ELECTRICAL PARTS 18 REFRIGERANT CYCLE DIAGRAM eere 19 CONTROL BLOCK nen 22 OPERATION DESCRIPTION paren Usa a ecc us E anke t oiseau Ice E casse cos 24 INSTALLATION PROCEDURE ce aa ep 48 HOW TO DIAGNOSE THE TROUBLE 64 HOW TO REPLACE THE MAIN PARTS 86 EXPLODED VIEWS AND PARTS LIST 102 FILE NO SVM 12071 1 SAFETY PRECAUTIONS The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual Be sure to read this installation manual carefully before installing Rec
49. Fig 5 Fig 6 In starting and in stability Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation start and room temp is higher than set temp 3 When 25 minutes or more passed after operation start FAN Manual Room temp Set temp 4 C Room temp Set temp 3 5 C FAN AUTO When 12 to 25 minutes passed after operation start and room temp is 3 C or lower than set temp om FILE NO SVM 12071 3 Outdoor fan The blowing air volume at the outdoor unit side is controlled 1 The operation command sent motor control Receiving the operation command from the controller of from the remote controller is indoor unit the controller of outdoor unit controls fan speed processed by the indoor unit For the fan motor a DC motor with non stage variable controller and transferred to the speed system is used However it is limited to 8 stages for controller of Hle outdoor unit reasons of controlling 2 When strong wind blows at outdoor side the operation of air conditioner continues with the fan Air conditioner ON motor stopped Remote controller 3 Whether the fan is locked or not is detected and the operation of air conditioner stops and an alarm is displayed if the fan is locked 4 According to each operation mode by the conditions of outdoor temperature To and compressor revolution the speed of the outdoor fan shown in the
50. IPE OD 12 7 mm Location UN Description No 16 43100468 FRONT CABINET 43146347 BODY PMV 43100459 43142321 43100452 43119329 43119346 43141446 43041627 43143451 43143452 43146358 43146355 43147331 43141333 43100448 43100451 LEFT CABINET BASE PLATE ASSEMBLY UPPER CABINET FAN GUARD PACKED VALVE COVER COMPRESSOR For RAS 18N3AV E COMPRESSOR ASSY For RAS 22N3AV E CONDENSER ASSEMBLY For RAS 18N3AV E CONDENSER ASSEMBLY For RAS 22N3AV E VALVE PACKED 6 35 DIA VALVE PACKED 12 7 DIA H4 BONNET 6 35 DIA BONNET 12 70 DIA FIXING PLATE VALVE RIGHT CABINET ASSEMBLY 104 43163329 43158306 43120319 43121375 43147001 43197001 43149335 43146343 43163320 43163319 43179305 43139333 43163318 43163317 43163323 43119331 COIL PMV REACTOR PROPELLER FAN FAN MOTOR NUT FLANGE NUT RUBBER CUSHION 4 WAY VALVE For RAS 18N3AV E 4 WAY VALVE COIL ASSEMBLY ASSEMBLY For RAS 18N3AV E HOLDER SENSOR DRAIN NIPPLE MOTOR BASE CONNECTION PLATE HOLDER SENSOR HOLDER SENSOR HOLDER SENSOR FIN GUARD FILE NO SVM 12071 13 4 P C Board Layout Outdoor RAS 18N3AV E TE Sensor 216 TS Sensor 26 TO Sensor 26 pd 43162320 HEATSINK 43160377 TEMPERATURE SENSOR 43169943 PC BOARD 43150304 SENSOR HEAT EXCHANGER 43160392 TERMINAL 5P 43162313 BASE PLATE PC 43160326 FUSE 105 FILE NO SVM 12071 13 5 P C Board Layout Outdo
51. M 12071 10 4 Outdoor Unit 10 4 1 Installation place A place which provides the spaces around the outdoor unit as shown in the left diagram 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 up to 20 m There is no need to add refrigerant as long as the length of the connection piping 15 m or less You will need to add 20g of refrigerant per meter of added connection piping for installations requiring connection piping to be between 16 m to 20 m An allowable height level is up to 10 m Aplace where the drain water does not cause any problems 10 4 2 Precautions about Installation in Regions with Snowfall and Cold Temperatures Do not use the supplied drain nipple for draining water Drain the water from all the drain holes directly To protect the outdoor unit from snow accumulation install a holding frame and attach a snow protection hood and plate Do not use a double stacked design Snow protection plate Install at least 50 cm above the snow accumulation line Snow protection ho
52. NO SVM 12071 Is it possible to change airflow level to HIGH Does check display Replace on remote show high remote Change the new PC board Does fan speed change YES NO Replace motor Fan motor operates normally Is it possible to rotate cross flow fan by hand properly NO Does check cross flow Replace bearing tan of cross flow fan YES YES Replace indoor pe Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby At this time is it possible to detect DC 1V or more between 5 and 3 of motor connector CN31 YES P C board FA FILE NO 12071 4 Indoor fan motor automatically starts to rotate by turning on power supply Cause The IC is built in the indoor fan motor Therefore the P C board is also mounted to inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply Inspection procedure 1 Turn on breaker 2 After Fan motor operate off A C by remote controller 3 Turn off breaker for a while then turn it ON 3 1 If fan motor not operate it means an unit in Auto restart operation see more detail in P 50 51 3 2 If Fan motor still operate follow the below 3 2 1 Remove the grille 3 2 2 Remove the cover terminal by release one screw 3 2 3
53. a volve body to the bottom and fix it by rotating at 90 toword Fan guard 1 Detachment 1 Perform work of item 1 of 2 Remove the front cabinet and put it down so that fan guard side directs downward Perform work on a corrugated cardboard cloth etc to prevent flaw to the product 3 Remove the hooking claws by pushing minus screwdriver according to the arrow mark in the right figure and remove the fan guard 2 Attachment 1 Insert claws of the fan guard in the holes of the front cabinet Push the hooking claws 9 positions by hands and fix the claws Check that all the hooking claws are fixed to the specified positions 99 either direction And confirm to fix it surely FILE NO SVM 12071 anie eei _ Electronic expansion valve Coil Lead connecting part 4 Minus screwdriver Hooking claw te FILE NO SVM 12071 Part name Procedure 17 TE sensor Outdoor heat exchanging temperature sensor Attachment With the leads pointing downward and the sensor leads pointing in the direction shown in the figure install the sensor onto the straight pipe part of the condenser output pipe Detail C A DR TR aps Ll i LLL Tad nme 4 Cy AN 2 Tf TS sensor Suction pipe temperature sensor Attachment With its leads pointing downward point the sensor in the direction of the packed valve and insta
54. agnose troubles according to the trouble diagnosis procedure as described below Refer to the check points in servicing written on the wiring diagrams attached to the indoor outdoor units Table 11 1 OOOO how to Diagnose Towe Precautions when handling the new inverter 3DV Inverter CAUTION HIGH VOLTAGE The high voltage circuit is incorporated Be careful to do the check service as the electric shock may be caused in case of touching parts on the P C board by hand The new inverter 3DV inverter will be incorporated starting with this unit SDV 3 shunt Discrete Vector control The control circuitry has an uninsulated construction IGBT Compressor lt CN 1 a Tr Fan motor Driver Amplifier FET x6 MCU Shared potential Driver Amplifier FILE NO SVM 12071 CAUTION A high voltage equivalent to the supply voltage is also energized to ground through the sensors PMV and other low voltage circuits The sensor leads and other wires are covered with insulated tubes for protection Nevertheless care must be taken to ensure that these wires are not pinched Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power At times such as when the circuit board is to be replaced pla
55. alves and stop the compressor before removing the refrigerant pipe It removing the refrigerant pipe while the compressor is operating with the service valves opened it may cause to air absorbed and abnormal high pressure inside the refrigeration cycle and resulting burst or injury Do not modify the power cable connect the cable midway or use a multiple outlet extension cable Doing so may cause contact failure insulation failure or excess current resulting in fire or electrical shock Do not use any refrigerant different from the one specified for complement or replacement Otherwise abnormally high pressure may be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body Be sure to comply with local regulations codes when running the wire from the outdoor unit to the indoor unit Size of wire and wiring method etc Places where iron or other metal dust is present If iron or other metal dust adheres to or collects on the interior of the air conditioner it may spontaneously combust and start a fire If you detect any damage do not install the unit Contact your supplying dealer immediately Never modify this unit by removing any of the safety guards 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 FILE NO SVM 12071 CAUTION Please read this installation manual carefbefore insta
56. an be charged 2 When using a cylinder equipped with a siphon liquid can be charged without turning it upside down It is necessary for charging refrigerant under condition of liquid because is mixed type of refrigerant Accordingly when charging refrigerant from the refrigerant cylinder to the equipment charge it turning the cylinder upside down if cylinder is not equipped with siphon Cylinder with siphon Gauge manifold cylinder Electronic balance R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the composi tion of the charged refrigerant changes and the characteristics of the equipment varies 3 5 Brazing of Pipes 3 5 1 Materials for Brazing 1 Silver brazing filler Silver brazing filler is an alloy mainly composed of silver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in adhesive strength do not use it for refrigerant pipes OUTDOOR unit Cylinder without siphon Gauge manifold OUTDOOR unit Electronic balance Siphon Phosphor bronze brazing filler tends to react
57. backward into pipes of the air conditioner when the pump stops If oil inside of the vacuum pump enters the air conditioner which use R410A refrigeration cycle trouble may happen 1 Connect the charge hose from the manifold valve to the service port of the packed valve at gas side 2 Connect the charge hose to the port of the vacuum pump 3 Open fully the low pressure side handle of the gauge manifold valve 4 Operate the vacuum pump to start evacuating Perform evacuating for about 15 minutes if the piping length is 20 meters 15 minutes for 20 meters assuming a pump capacity of 27 liters per minute Then confirm that the compound pressure gauge reading is 101 kPa 76 cmHg 5 Close the low pressure side valve handle of the gauge manifold valve 6 Open fully the valve stem of the packed valves both gas and liquid sides 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valves Compound pressure gauge Pressure gauge 101 kPa 76 cmHg Manifold valve 4 Handle Hi Handle Lo Q Q Keep full closed Charge hose Charge hose e For R410A only For R410A only Connecting pipe Vacuum pump L gt adapter for EN counter flow zt prevention For R410A only 1 Vacuum pump Packed valve at gas side Service port Valve core Setting pin Packed valve at liquid side Fig 10 4 7 e K
58. by holding the connector 95 P C board Soldered surface Discharging position Discharging period 10 seconds or more soldering 7 iron Ascrew ST1T 4 8MSZN P C board Soldered surface Put each leads Put the compressor through the hole leads through the hole The connector is one with lock so remove it while pushing the part indicated by an arrow Be sure to remove the connector by holding the connector not by pulling the lead wire FILE NO SVM 12071 Lo Control board 1 Disconnect the leads and connectors connected to assembly the other parts from the control board assembly 1 Leads 3 leads black white orange connected to terminal block Lead connected to compressor 7 x E Disconnect the connector 3P Lead connected to reactor Disconnect the two connectors 2P 2 Connectors x8 CN300 Outdoor fan motor 3P white See Note CN300 and CN603 are CN700 PMV 6P white connectors with locking BER mechanisms as such to CN603 TS sensor 3P ud disconnect them they must CN601 TD sensor 3P white be pressed in the direction of CN602 TO sensor 2P white the arrow while pulling them Out These connectors have a disconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the P C board base Remove the
59. ce the circuit board assembly in a vertical position Laying the board flat on an electrically conductive object such as the top panel of the air conditioner s outdoor unit while a charge is still retained by the electrolytic capacitors of the inverter s main circuit may cause short circuiting between the electrolytic capacitors and secondary circuit components and result in damage to the components Sensor leads Fig 11 2 Do NOT lay the circuit board assembly flat Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280 to 380V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc Discharging method gt 1 Remove the inverter cover plating by opening 4 mounting claws 2 As shown below connect the discharge resistance approx 1000 40W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 400V or 7601 400V on board and then perform discharging Discharging position Discharging period _ Plugof 10 seconds or _ Sol
60. dering iron Inverter cover P C board Soldered surface 11 1 First Confirmation 11 1 1 Confirmation of Power Supply FILE NO SVM 12071 Confirm that the power breaker operates ON normally 11 1 2 Confirmation of Power Voltage Confirm that power voltage is AC 220 230 240 10 If power voltage is not in this range the unit may not operate normally 11 1 3 Operation Which is not a Trouble Program Operation For controlling the air conditioner the program operations are built in the microcomputer as described in the following table If a claim is made for running operation check whether or not it meets to the contents in the following table When it does we inform you that it is not trouble of equipment but it is indispensable for controlling and maintaining of air conditioner When power breaker is turned ON the operation indicator Green of the indoor unit flashes Compressor may not operate even if the room temperature is within range of compressor ON In Dry and ECO mode FAN air flow display does not change even though FAN air flow select button is operated Increasing of compressor motor speed stops approx 30 seconds after operation started and then compressor motor speed increases again approx 30 seconds after In AUTO mode the operation mode is changed In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the
61. door fan Contents of operation command signal Serial signal from indoor unit controller to outdoor unit controller The following three types of signals are sent from the indoor unit controller Operation mode set on the remote controller Compressor revolution command signal defined by indoor temperature and set temperature Correction along with variation of room tempera ture and correction of indoor heat exchanger temperature are added Temperature of indoor heat exchanger For these signals Dperation mode and Com pressor revolution indoor heat exchanger tem perature the outdoor unit controller monitors the input current to the inverter and performs the followed operation within the range that current does not exceed the allowable value Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of trouble occurrence Contents of judgment are described below Whether distinction of the current operation status meets to the operation command signal Whether protective circuit operates When no signal is received fr
62. e Measure voltage at terminal block of the indoor unit between No 2 and No 3 or L2 and S If signal is varied 15 60V continuously replace inverter P C board If signal is not varied replace indoor P C board FILE NO SVM 12071 Block distinction Operation of diagnosis function Air Judgment and action Cause of operation conditioner status Inverter over current Displayed when Even if trying operation again all protective circuit operates error is detected operations stop immediately Short time Replace P C board P C board Position detect circuit error Displayed when Even if connecting lead wire of or short circuit between error is detected compressor is removed position windings of compressor detect circuit error occurred Replace P C board Measure resistance between wires of compressor and perform short circuit Replace compressor Current detect circuit error Displayed when Even if trying operation again all error is detected operations stop immediately Replace P C board Being out of place Displayed when 1 Check sensors TE TS disconnection or error is detected 2 Check PC board shortcircuit of the outdoor heat exchanger sensor TE or suction temp sensor Ts Disconnection or Displayed when 1 Check discharge temp sensor shortcircuit of discharge error is detected TD temp sensor 2 Check P C board Outdoor fan drive system Displayed when Position d
63. eck Item Considerable principle cause Measures Item by symptoms NO Remote controller is defective Refer to 5 Troubleshooting for remote controller NO Replace remote control Does fan motor connector between CN10 D short circuit YES Replace main P C board Microcomputer is defective Replace fan motor 2 Operation is not turned on though Indoor P C board is replaced lt Confirmation procedure gt Turn on power supply Does OPERATION indicator flash ii Is wired correctly to white and Correct wiri black lead wires of terminal block orrect wiring YES 7 To item of Indoor unit is not operated FILE NO SVM 12071 3 Only the indoor motor fan does not operate Primary check 1 2 Does the indoor fan motor operate in cooling operation Does fan motor YES continue to operate operation LED flash Em Change airflow level to HIGH Is it possible to detect the power supply voltage 220 240 between 1 and 2 on the terminal block In heating operation the indoor fan motor does not operate for approximately 10 minutes after it is turned on to prevent a cold air from blowing in Turn off power supply once and turn it on again Is it possible to detect DC 1V or more between NO and of Peplace indoor NO motor connector CN31
64. ed YES S NO Does indoor unit beep and operate YE YES Point remote to digital camera can see infrared at sending LED on carmera monitor when push button YES Replace main P C Board Remote controller Reciver P C board is defective Keep indoor unit Avoid direct away from Replace reciver Replace Normal Replace sunlight fluorescent light P C board batteries operation remote controller STO FILE NO SVM 12071 11 5 2 Wiring Failure Interconnecting and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between 2 and 3 of the indoor terminal block varied Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Terminal block at indoor side Red 3 O E 5277 or equivalent 5277G 6 Diode with rated voltage of 400V White 2 or more is acceptable 1 Terminal block Tester Normal time Voltage swings between DC15 60V Inverter Assembly check 11 5 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes after operation started and 10 minutes or more are required to res
65. ed at indoor unit side The indoor fan cross flow fan is operated by the phase control induction motor The fan rotates in 5 stages in MANUAL mode and in 5 stages in AUTO mode respectively Table 1 COOL ON Fan speed setup AUTO Fig 1 Fan speed MANUAL L L indication M cua w M 2 we Fig 2 3 Fan speed M L x 3 4 L 4 Fan speed M L x 2 4 L 5 Fan speed M L x 1 4 L Linear approximation from M and L Table 1 Indoor fan air flow rate RAS 18N3KV E an spee ie DRY Fan speed rpm Symbols UH Ultra High H High M Medium M Medium L Low L Low L Low UL Ultra Low SUL Super Ultra Low The fan speed broadly varies due to position of the louver etc The described value indicates one under condition of inclining downward blowing 1 When setting the fan speed to L L M M or H on the remote controller the operation is performed with the constant speed shown in Fig 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table 1 according to the setup tempera ture room temperature and heat exchanger temperature m3 h rpm m3 h FILE NO SVM 12071 2 Indoor fan In heating operation 1 When setting the fan speed to L motor control L M M
66. erature of the indoor heat exchanger by using the indoor temp sensor TA sensor Judgment of the indoor heat exchanger tempera ture by using heat exchanger sensor TC sensor Prevent freezing control etc Louver motor control Indoor fan motor operation control LED Light Emitting Diode display control Transferring of operation command signal Serial signal to the outdoor unit Heception of information of operation status Serial signal including outside temp data to the outdoor unit and judgment display of error 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control Operation control of outdoor fan motor PMV control 4 way valve control Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT module Compressor stop function Compressor and outdoor fan stop function when serial signal is off when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system Transferring of operation information Serial signal from outdoor unit controller to indoor unit controller Detection of outdoor temperature and operation revolution control Defrost control in heating operation Temperature measurement by outdoor heat exchanger and control for 4 way valve and out
67. es immediately besides all indicatiors on front panel turn ON continuously for 3 seconds FILE NO SVM 12071 18 One Touch Comfort 19 Hi POWER Mode 20 FILTER Indicator One touch comfort is the fully automated operation that is set according to the preferable condition in a region Fan Operation AUTO AUTO L 25 Time after operation starts min AUTO L Fan operates depends on the setting temperature and room temperature During the One Touch Comfort mode if the indoor unit receives any signal with other operation mode the unit will cancel the comfort mode and operates according to the signal received Hi POWER button on the remote controller is pushed When Hi POWER button is pushed while the indoor unit is in Auto Cooling or Heating operation Hi POWER mark is indicated on the display of the remote controller and the unit operates as follows 1 Automatic operation he indoor unit operates in according to the current operation 2 Cooling operation The preset temperature drops 1 degree The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increases 1 tap 3 Heating operation he preset temperature increases 2 degree The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increases 1 tap 4 The Hi POWER mode can not be set in Dry operation When the ela
68. essing CHECK button with a tip of a pencil 5 Then press 5 button to transmit the signal to the indoor unit FILE NO SVM 12071 2 Inspection procedures 1 When board is judged to be defective check for disconnection burning or discolora tion of the copper foil pattern or this P C board 2 The P C board consists of the following 2 parts a Main P C board part DC power supply circuit 5 V 12 V Indoor fan motor control circuit CPU and peripheral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving Infrared ray receiving circuit LED fF TOSHIBA N nn DO lt 5 HiPOWER MIA G PRESET A TEMP wr 2 MODE SWNG FAN oer owt FIX QUIET ECO TIMER COMFORT SLEEP ON OFF or SET CHECK CLOCK FILTER RESET aas O SR IT
69. etect error over current error error is detected protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor Not displayed 1 Check outdoor temp sensor TO 2 Check P C board M Outdoor Compressor drive output All off Displayed when When 20 seconds passed after P C board error Compressor error error is detected start up position detect circuit error lock missing etc occurred Replace compressor Trouble on PMV Outdoor heat exchanger Operation temp sensor error continues Others Heturn serial signal has Operation Flashes when Repeat Start and Stop with including been sent when operation continues trouble is detected interval of approx 10 to 40 compressor started but it is not sent on return serial minutes Code is not displayed from halfway signal and normal during operation 1 Compressor thermo status when signal Supply gas operation is reset Check also gas leak Gas shortage Unit operates normally during Gas leak check 2 Instantaneous power If return serial signal does not failure stop between indoor terminal block 2 and 3 replace inverter P C board If signal stops between indoor terminal block 2 and 3 replace indoor P C board Compressor does not All off Displayed when Trouble on compressor rotate Current protective error is detected Trouble on wiring of compressor circuit does not operate Missed phase when a specified ti
70. etector Exclusive for HFC refrigerant Incidentally the refrigerant cylinder comes with the refrigerant designation R410A and protector coating in the U S s ARI specified rose color ARI color code PMS 507 Also the charge port and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hoses port size 51 10 3 Indoor Unit 10 3 1 Installation Place place which provides the spaces around the indoor unit as shown in the diagram A place where there are no obstacle near the air inlet and outlet place which allows easy installation of the piping to the outdoor unit place which allows the front panel to be opened The indoor unit shall be installed as top of the indoor unit comes to at least 2 m height Also it must be avoided to put anything on the top of the indoor unit CAUTION Direct sunlight on the indoor unit s wireless receiver should be avoided The microprocessor in the indoor unit should not be too close to RF noise sources For details see the owner s manual lt Remote control gt e Aplace 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 e Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment Th
71. ge o 5 go 35mm 2 B c lt gt s 5 8 lt gt lt gt unit outiine g gre f 120mm hs 5 120 80 E P cu Pipe hole 265 mm Hook Mounting Installation plate Screw M o 2 m or more from floor Pipe hole Thread Weight Indoor unit Fig 10 3 3 52 _ FILE NO SVM 12071 When the installation plate is directly 10 3 3 Wiring Connection mounted on the wall 1 Securely fit the installation plate onto the wall by How to connect the connecting cable screwing it in the upper and lower parts to hook iri h nnectin rri up the indoor unit Wiring the connecting cable can be carried out without removing the front panel 2 To mount the installation plate on a concrete wall with anchor bolts use the aanchor bolt holes as illustrated in the below figure 3 Install the installation plate horizontally in the wall 1 Remove the air inlet grille Open the air inlet grille upward and pull it toward you 2 Remove the terminal cover and cord clamp 3 Insert the connecting cable according to the local
72. h arrange as shown on figure 9 and 10 to terminal by provided screws tighten firmly but not over 0 25 N m 0 03 kgf m 6 Set control wire through gutter way at rear side of remote controller as shown on figure 1D 7 Fix provided screw 2 3 1 x 16L on the wall to hang remote controller as shown on figure 2 8 Mark and arrange hole for fix below screw 3 1 x 25L as shown on figure 0 9 Assembly battery cover which provided with accessory bag then use provide screw 3 1 x 25L to fix battery cover together with wall as shown on figure 3 tighten firmly but not over 0 15 N m 0 02 kgf m 10 Reassembly cover of remote controller D Polyester sheet close hole for insert control wire Lf LHA AA A 2 AA ES M 10 mm Wire size 28 22 AWG 0 08 0 32 mm Outer diameter not over 4 7 mm control wire length 30 m or less Control wire Terminal Tighten firmly but not over 0 25 N m 0 03 kgf m Fig 10 3 11 Control wire Control wire WH TAO1 Hole for hang remote controller Remote controller Screw 23 1 x 16L for hang remote controller Wall Remote controller Screw 23 1 x 25L for fix battery cover 42 Tighten firmly but not over 0 15 N m 0 02 kgf m Fig 10 3 12 Remark 1 Recommend to use double insulation lead wire for connect remote control and air conditioner 2 For wi
73. h your fingers Then tighten the nut with a spanner and torque wrench as shown in the figure Half union Flare nut Externally Internally threaded side threaded side Use a wrench Use a torque wrench to secure to secure Fig 10 4 5 Do not apply excess torque e Otherwise the nut may crack depending on the conditions Unit N m Outer dia Tightening torque of copper pipe dbi 26 35 16 to 18 1 6 to 1 8 912 70 50 to 62 5 0 to 6 2 kgf m Tightening orque of flare pipe connections The operating oressure of R410A is higher than that of R22 approx 1 6 times It is therefore necessary to firmly tighten the flare pipe connecting sections which connect the indoor and outdoor units up to the specified tightening torque Incorrect connections may cause not only a gas leakage but also damage to the refrigeration cycle Flare at indoor unit side Flare at outdoor unit side Fig 10 4 6 60 FILE NO SVM 12071 10 4 4 Evacuating After the piping has been connected to the indoor unit you can perform the air purge together at once AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump Do not use the refrigerant in the outdoor unit For details see the manual of the vacuum pump lt Using a vacuum pump gt Be sure to use a vacuum pump with counter flow prevention function so that inside oil of the pump does not flow
74. heat sink and control board assembly while keeping them screwed m together P C board base Disengage the four claws of the P C board base P C board hold the heat sink and lift to remove it 3 Remove the two fixing screws used to secure the heat sink and control board assembly 4 Mount the new control board assembly When mounting the new control board assembly ensure that the P C board is inserted properly into the P C board support groove 96 FILE NO SVM 12071 o Side cabinet 1 Side cabinet right JE 1 Perform step 1 in and all the steps in NR La 3 ee D E pe 2 Remove the fixing screw ST1T 4 x 10L 1 ROD 4 pcs used for securing the side E cabinet the bottom plate and valve PAHANE 12 fixing panel S 2 Side cabinet left n e all 4 1 Perform step 1 WEE 2 Remove the fixing screw ST1T 4 x 10L Hook the claw noto 1 pc used to secure the side cabinet left onto heat exchanger _ V 3 Remove the fixing screw ST1T 4 x 10L Mi iu 2a 2 pcs used for securing the side cabinet IL SR a to the bottom plate and heat exchanger SSR 2 onto the bottom plate here Detail A Detail B Detail C Fan motor 1 Perform work of item 1 of D and 2 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened by turning clock wise To tigh
75. ia incor YES NO Reconnecting the Does check connecting in terconnection cable cable or power supply cord complely and terminal block YES YES Does check Does check 5V 5V at display unit at main P C board YES YES Start to operate i Replace indoor unit in cooling display unit operation at airflow level LOW Y NO Is it possible to detect Does indoor DC 294 325V between fan operate YES 1 and of motor connector CN31 E Turn off indoor unit and remove Motor connection condition connector from motor Is it possible to detect DC 15V Then push 0 button between 4 and 3 of on remote controller to stop motor connector CN31 flashing lamp on indoor unit YES lace main Is it possible to detect ep DC 15V between 4 C board and 3 of motor connector CN31 Start to operate the indoor unit in except heating operation At this time is it possible to OO 1V more between and of motor connector CN31 Turn off indoor unit and remove connector from motor Then start to operate indoor unit with remote controller YES Start to operate the indoor unit in except heating operation At this time is it possible to wen V or DO between and of motor connector RS Check this condition within 15 seconds after starting unit asf FILE
76. indoor unit same portion as power supply and connecting cable as shown on figure 6 9 Reassembly the indoor unit by reverse process of 1 to 3 Air inlet grille Sie 7 4 f Display board Display unit Fig 10 3 9 54 FILE NO SVM 12071 70 mm 4 Wire size 28 22 AWG 0 08 0 32 mm mm Outer diameter not over 4 7 mm Dm control wire length 30 m or less E 6 5mm Control wire out position 2 2 Ot Hue 6 90 1 a JN m m Control wire nds 3782108 Sm n 5 AE 2A VO 7 las oss seis COMPONENT SIDE E mede Tighten firmly Terminal but not over ermina Control wire 0 12 N m 0 01 kgf m Control wire through out position Fig 10 3 10 lt For remote controller gt 1 Remove cover of remote controller by sliding down and take it out 2 If batteries are exist please take them out The combination of using wire controller and batteries may cause of batteries explosion 3 Make hole for insert control wire by use screwdriver break the polyester sheet as shown on figure 7 4 Insert control wire from rear side of remote controller as shown on figure 8 5 Fix control wire whic
77. inyl tape Rear right Apply after carrying 4 out a drainage test Rear To Left Bottom right Bottom left Insulate the refrigerant pipes separately with insulation not together The provided Remote Controller is a wireless type which also can be used as a wire Please see How to Connect The Remote Controller for Wired Operation in case of wired control is required 600 mm or more he Extension drain hose Not available provided by installer When installing the outdoor unit leave open in at least two of direction A B C and D shown in the figure on the right 8 mm thick heat resisting polyethylene foam Remark Detail of accessory and installation parts can see in the accessory sheet Some pictures might be different from the actual parts Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type SS following the and positions Batteries 2 Wireless remote controller 48 FILE NO SVM 12071 10 2 Optional Parts Accessories and Tools 10 2 1 Optional installation parts Refrigerant piping Liquid side 26 35 mm si Gas side 212 70 eac Pipe insulating material polyethylene foam 8 mm thick One O Putty PVC tapes Fixing bolt arrangement of outdoor unit 108 mm 125 mm 28 mm Air inlet e S q i lt gt
78. ion of at least 3 mm must be incorporated in the fixed wiring 10 5 Others 10 5 1 Gas leak test Check places for indoor unit Flarenut connection Electric parts cover Check places for outdoor unit Fig 10 5 1 Check the flare nut connections for the gas leak with a gas leak detector or soap water 62 FILE NO SVM 12071 10 5 2 Remote Control A B Selection When two indoor units are installed in the same room adjacent two rooms if operating a unit two units may receive the remote control signal simultaneously and operate In this case the operation can be preserved by setting either one remote control to B setting Both are set to A setting in factory shipment remote control signal 15 not received when the settings of indoor unit and remote control are different e here is no relation between setting B setting and room B room when connecting the piping and cables Remote control selection To separate using of remote control for each indoor unit in case of 2 air conditioners are installed nearly Remote Control B Setup 1 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the indoor unit 3 Push and hold CHECK button on the Remote Control by the tip of the pencil 00 will be shown on the display Picture 4 Press MODE during pushing CHECK B will show on the display and 00 will d
79. ional flare tools adjustment of projection margin is necessary For this adjustment a copper pipe gauge etc are necessary Note 2 Charging cylinder for is being currently developed General tools Conventional tools can be used In addition to the above exclusive tools the following equipments which serve also for R22 are neces sary as the general tools Vacuum pump Reamer 9 Hole core drill O65 Use vacuum pump by attaching Pipe bender 10 Hexagon wrench vacuum pump adapter Level uai Opposite side 4mm Torque wrench For 26 35 9 52 Screwdriver 11 Tape measure Pipe cutter Spanner or Monkey wrench 12 Metal saw Also prepare the following equipments for other installation method and run check 1 Clamp meter 3 Insulation resistance tester 2 Thermometer 4 Electroscope Bid s FILE NO SVM 12071 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant according to the following steps Recover the refrigerant and check no refrigerant remains in the equipment When the compound gauges pointer has indicated 0 1 Mpa 76 cmHg place the handle Low in the fully closed position and turn off the vacuum pump s power switch Connect the charge hose to packed valve service port at the outdoor unit s gas side Keep the status as it is for 1 to 2 minutes and ensure Connect the charge hose to the
80. irtight cap or any other cover 1 Flare processing procedures and precautions a Cutting the Pipe By means of a pipe cutter slowly cut the pipe so that it is not deformed b Removing Burrs and Chips If the flared section has chips or burrs refrigerant leakage may occur Carefully remove all burrs and clean the cut surface before installation Insertion of Flare Nut FILE NO SVM 12071 d Flare Processing Make certain that a clamp bar and copper pipe have been cleaned By means of the clamp bar perform the flare processing correctly Use either a flare tool for or conven 4 tional flare tool 2 Flare processing dimensions differ according to the type of flare tool When using a conventional flare tool be sure to secure dimension A by using a gauge for size adjustment Fig 3 2 1 Flare processing dimensions L gt Table 3 2 3 Dimensions related to flare processing for R410A Outer diameter Flare tool for R410A clutch type Nominal diameter Outer diameter Flare tool for R22 Conventional flare tool clutch type Clutch type Nominal diameter Nominal diameter FILE NO SVM 12071 Table 3 2 6 Flare and flare nut dimensions for R22 Nominal Outer diameter Thickness Flare nut width diameter mm mm mm __ l v _ 3 sm o om wm Fig 3 2 2 Relations between flare nut and seal
81. is 15 necessary to prevent image disturbances or noise interference e The location of the remote control should be determined as shown below Side view Top view aie A 5 E Remote control je de 5 2 9 5 NN 6 S X BNXV S X p Reception range Fig 10 3 1 FILE NO SVM 12071 10 3 2 Cutting a Hole and Mounting Installation Plate Cutting a hole gt When install the refrigerant pipes from the rear 23 mm 3 240 yt Pipe hole 1 2065 mm 1 The center the pipe hole is above the arrow Fig 10 3 2 1 After determining the pipe hole position on the installation plate drill the pipe hole 265 mm at a slight downward slant to the outdoor side NOTE When drilling a 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 Anchor bolt holes EE M Ll off amp o 0 0 2 5 ii 05 amp 0 E c o E 2 0 170 29 19 2 240mm 0 i b gd A 3 38 EE 0
82. isappear and the air conditioner will turn OFF The Remote Control B is memorized Picture 2 NOTE 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has not A display 3 Default setting of Remote Control from factory is A fF TOSHIBA N M TOSHIBA N B DD Fig 10 5 2 FILE NO SVM 12071 10 5 3 Test operation To switch the TEST RUN COOL mode press RESET button for 10 sec The beeper will make a short beep RESET button Fig 10 5 3 10 5 4 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 How to set the auto restart gt 1 Press and hold the RESET button on the indoor unit 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 seconds 2 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink e In case of ON timer or OFF timer are set AUTO RESTART OPERATION dose not activate 63 FILE NO SVM 12071 11 HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units Therefore di
83. ke 5 mm dia holes in the wall Fig 10 3 7 Insert clip anchors for appropriate mounting screws NOTE Secure four corners and lower parts of the NOTE Use stranded wire only installation plate with 4 to 6 mounting screws to install it c5 Wire type More than 1 5 HO7RN F or 60254 IEC66 or 1 3 mm AWG 16 10 3 4 How to Connect Remote Controller for Wire Operation Indoor unit N Control wire lt Remote controller Fig 10 3 8 For indoor unit Open the air inlet grille upward Securely remove four screws at the front panel 3 Slightly open the iower part of the front panel thon pull the upper part of the front toward you to remove it from the rear plate as shown on figure 1 4 After removing the front panel remove the screws and Display unit from the unit as shown on figure 2 then open the front cover of Display unit as shown on figure 3 o Arrange the control wire as detail and specification as shown on figure 4 6 Securely connect the control wire to terminal of display unit board as shown on figure 5 tighten firmly but not over 0 12 N m 0 01 kgf m 7 Setthe control wire throughout at slot on front cover of display unit then reassembly display with main casing by reverse process of figure 2 and 3 Make sure the control wire must not be pressed by front and rear cover of display unit 8 Set the control wire out from
84. l control compressor which can change the motor speed in the range from 11 to 120 rps is mounted The DC motor drive circuit is mounted to the indoor unit The compressor and the inverter to control fan motor are mounted to the outdoor unit The entire air conditioner is mainly controlled by the indoor unit controller The indoor unit controller drives the indoor fan motor based upon command sent from the remote controller and transfers the operation command to the outdoor unit controller The outdoor unit controller receives operation com mand from the indoor unit side and controls the outdoor fan and the pulse motor valve PMV Besides detecting revolution position of the compres sor motor the outdoor unit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power current transfer timing so that motors drive according to the operation command And then the outdoor unit controller transfers reversely the operating status information of the outdoor unit to control the indoor unit controller As the compressor adopts four pole brushless DC motor the frequency of the supply power from inverter to compressor is two times cycles of the actual number of revolution 1 Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and assumes the following functions Judgment of suction air temp
85. ll animals could enter and contact internal electrical parts causing a failure or fire Request the user to keep the place around the unit tidy and clean Make sure to conduct a trial operation after the installation work and explain how to use and maintain the unit to the customer in accordance with the manual Ask the customer to keep the operation manual along with the installation manual FILE NO SVM 12071 2 SPECIFICATIONS 2 1 Specifications Unit mode rr Cooling capacity 80 9 Cooling capacity range Ww 11 60 10067 Heating capacity 88 Heating capacity rangs 90863 mme Power supply Electric Indoor characteristic Power factor p 60 Outdoor Running current 220 240V A Power consumption W Power factor p o o 09 Starting current COP 3 41 BA level 59 56 53 50147 level Outdoor Aa 64 656 68 67 __ indoor uni Dimention 243 243 Outdoor uni Dimension 550 550 Width mm 0 780 ___ ____ Depth mm 290 290 Net weigh E Compressor 1100 Air flow rate CoolingiHeating m min Piping connection Indoor unit Liquid side mm je Ouoorumi Liquid side s P ERE Maximum length im avo o ov oo 10 Rafigerant ee rr Wiring connection Usable tempe
86. ll it onto the straight pipe part of the suction pipe UN fi D Ur P M P T fe DNO Am pe ES TD sensor Discharge pipe temperature sensor Attachment With its leads pointed downward install the sensor onto the vertical straight pipe part of the discharge pipe TO sensor Outside air temperature sensor Attachment Insert the outdoor air temperature sensor into the holder and install the holder onto the heat exchanger Straight parts A n pe 92 Cy 4 4 HY HS S eh X Uf ccm SS 7 f ws EN 4 d I Detail A Detail B Arrow D TS sensor TD sensor TO sensor CAUTION During the installation work and on its completion take care not to damage the coverings of the sensor leads on the edges of the metal plates or other parts It is dangerous for these coverings to be damaged since damage may cause electric shocks and or a fire A 4 CAUTION After replacing the parts check whether the positions where the sensors were installed are the proper positions as instructed The product will not be controlled properly and trouble will result if the sensors have not been installed in their proper positions 100 FILE NO SVM 12071 We Lo o Replacement of temperature sensor for servicing only Common service parts of sensor TO TS These are parts for servicing sensors
87. lling the unit It contains further important instructions for proper installation Exposure of unit to water or other moisture before installation could result in electric shock Do not store it 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 neighbors This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the unit is installed Failure to do so may cause electrical shock Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit Ensure that drained water is discharged Improper drainage can result in water leakage causing water damage to furniture Tighten the flare nut with a torque wrench using the prescribed method Do not apply excess torque Otherwise the nut may crack after a long period of usage and it may cause the leakage of refrigerant Wear gloves heavy gloves such as cotton gloves for installation work Failure to do so may cause personal injury when handling parts with sharp edges Do not touch the air intake section or the aluminum fins of the outdoor unit It may cause injury Do not install the outdoor unit in a place which can be a nest for small animals Sma
88. ly No Self Cleaning operation performed Shutdown To stop an ongoing Self Cleaning operation at any time Push the start stop button on the remote controller twice during the Self Cleaning operation After pushing the button for the first time push it for the second time without delay within 10 minutes FILE NO SVM 12071 13 Self Cleaning Self Cleaning diagram function Operation display ON OE ON ON Compressor por eom temperaturo _ Oe foe a 9 14 Remote Setting Self Cleaning Operation time mode operate 30 mins Cool mode or dry mode operation more than 10 mins Turn off by Automatically remote controller or turn off timer off function the remote controller 1 Purpose Controller A or To separate using of remote controller for each indoor This operation is to operate only B selection unit in case of 2 air conditioner are installed nearly one indoor unit using one remote controller Remote Control B Setup Press RESET button on the indoor unit to turn the Description air conditioner ON When operating one indoor unit in Point the remote control at the indoor unit a situation where two indoor units Push by the tip of the pencil 00 will be shown on and hold CHECK button on the Remote Control have been installed in the same room or nearby rooms this operation prevents the remote the display Pict
89. me passed after compressor had been activated Discharge temp exceeded Displayed when Check dischage temp sensor 117 C error is detected TD Gas leakage Trouble on PMV Break down of compressor Displayed when Check power voltage error is detected 220 230 240 V 10 Overload operation of refrigeration cycle Check installation condition Short circuit of outdoor diffuser 4 way valve inverse error Operation Check 4 way valve operation TC sensor value lowered continues during heating operation AD 11 5 Judgement of Trouble by Every Symptom 11 5 1 Indoor unit Including remote controller 1 Indoor unit is not operated NO Is OPERATION indicator flashing YES Turn off power supply once and 5 second later turn it on again Is it possible to turn on A C by pushing 5 button on remote controller Unit operates normally Is fuse F01 of indoor control board blown NO Is voltage DC5V 12V and 15V indicated on rear of indoor control board nor mal YES NO Does connection between PC Board and reciver PCB are connect properly NO Does transmission mark on remote controller flash normally and is its signal transmitted properly YES Point remote to digital camera Can see infrared ray at sending LED on camera monitor when push 5 button YES YES Reconnect housing FILE NO SVM 12071 Operation Ch
90. mode revolution indoor Outdoor P MPa ps High High NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchaner path U bent Thermistor themometer 2 Connecting piping condition 7 5 m D es FILE SVM 12071 8 CONTROL BLOCK DIAGRAM 8 1 Indoor Unit M C U Indoor Unit Control Unit Heat Exchanger Sensor TC Functions Louver Motor Cold draft preventing Function 3 minute Delay at Restart Louver Motor for Compressor Drive Control Room Temperature Sensor Infrared Rays Signal Receiver and Indication Fan Motor Starting Control Processing Oscillator Circuit ndoor e Clean Function Fan Motor Serial Signal Transmitter Receiver Temperature Processing Indoor F ndoor Fan Clock Frequency Serial Signal Communication Unb Serial Signal Communication Operation Command and Information REMOTE CONTROLLER Remote Controller Infrared Rays 36 7kHz Operation 5 E Operation Mode Selection B E AUTO COOL DRY HEAT FAN B BE Thermo Setting m Fan Speed Selection ON TIMER Setting a Of 1 a SLEEP 1 3 5 9 OFF TIMER FILE NO SVM 12071 8 2 Outdoor Unit Inverter Assembly JosseJduJo 1010 4 JoopinO HOOALNO OJIN NOW 9A EA 101O N 9S D d ANd Oy
91. mote Controller Display All indications except for the clock time indicator are displayed by pushing the button 1 2 Transmission mark This transmission mark A indicates when the remote controller transmits signals to the indoor unit Mode indicator Indicates the current operation mode AUTO Automatic control A Auto changeover control Cool Dry XX Heat Temperature indicator Indicates the temperature setting 17 C to 3090 FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW LOW MED MED HIGH milli can be shown Indicates AUTO when the operating mode is either AUTO or Dry TIMER and clock time indicator The time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation Hi POWER indicator Indicates when the Hi POWER operation starts Push the Hi POWER button to start and push it again to stop the operation 11 NNI PRESET indicator Flashes for 3 seconds when the PRESET button is pushed during operation The 3 mark is shown when holding down the button for more than 3 seconds while the mark is flashing Push another button to turn off the mark ECO indicator Indicates when the ECO is in activated Push the ECO button to start and push it again to stop operation 9 A B change indicator remote c
92. motor and connection is failure lock rotor short error is detected 2 In case of the motor and its circuit disconnection etc connection is normal check the Or its circuit on P C board P C board has problem L i Other trouble on the indoor Depend on Depend on Replace P C board P C board cause of cause of failure failure Block distinction distinction Operation of diagnosis function Ai a Display flashing Cause of operation conditioner code code error status Serial signal 1 Defective wiring of the Indoor unit Flashes when 1 and connecting Li connecting cable or operates error is detected cable miss wiring continue Flashing stop 2 Operation signal has not Outdoor unit and outdoor unit send from the indoor unit stop start to operate when operation start when the return 3 Outdoor unit has not signal from the send return signal to the outdoor unit is indoor unit when operation normal started 4 Return signal from the outdoor unit is stop during operation Some protector hardware if exist of the outdoor unit open circuit of signal Signal circuit of indoor P C board or outdoor P C board is failure in some period Note Operation signal of the indoor unit shall be measured in the sending period as picture below Sending signal of the indoor unit when have not return signal from the outdoor unit VDC 9 i
93. nd signal can be received from the remote controller even if it stopped due to a power failure adja FILE NO SVM 12071 9 4 Remote control 9 4 1 Remote Controller and Its Functions Infrared signal emitter Comfort sleep button COMFORT SLEEP Filter reset button FILTER clock button CLOCK Check button CHECK Reset button RESET 2 Start Stop button 3 Mode select button MODE 4 Temperature button TEMP mp e 5 Fan speed button FAN 6 Swing louver button SWING E TEMP 4 7
94. ne the heat exchanger does not exceed the specified value 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger drops in the Reduction of compressor speed range from 55 to under 48 the compressor speed is kept 52 C When the value is Q zone in Q zone the 4 When temperature of the indoor compressor speed heat exchanger does not rise to Pe 52 C or when it drops below to 48 C the capacity control operation returns to the usual control in heating operation R zone Usual heating capacity control Indoor heat exchanger temperature aoe FILE NO SVM 12071 7 Defrost contr ol This function removes frost adhered to the outdoor Only in heating heat exchanger operation Start o 26 Outdoor heat exchanger temperature The minimu 10 15 29 The temperature sensor of the outdoor heat ex changer Te sensor judges the frosting status of the outdoor heat exchanger and the defrost operation is performed with 4 way valve reverse defrost system f heating operation 35 Operation time Minute detection time m value of Te sensor 10 to 15 minutes after start of operation is stored in memory as Table 1 When TeO TE 2 2 5 continued for 2 minutes in A zone defrost operation starts B When the operation co
95. nes and oils because the pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 As well as the adoption of this new refrigerant refrigerating machine oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigerating machine oil does not enter the refrigeration cycle of a new refrigerant air conditioner To avoid mixing refrigerant and refrigerating machine oil the sizes of charging port connecting port connecting sections on the main unit are different from those for the conventional refrigerant and different size tools are also required For connecting pipes use new and clean piping materials with highpressure withstand capabilities designed for R410A only and ensure that water or dust does not enter Moreover do not use any existing piping as its pressure withstand may be insufficient and may contain impurities DANGER FOR USE BY QUALIFIED PERSONS ONLY e MEANS FOR DISCONNECTION FROM THE SUPPLY HAVING A CONTACT SEPERATION OF AT LEAST 3 mm IN ALL POLES MUST BE INCORPORATED IN THE FIXED WIRING TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK MAKE SURE ALL POWER SWITCHES ARE OFF FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK CONNECT THE CONNECTING CABLE CORRECTLY IF THE CONNECTING CABLE IS CONNECTED WRONGLY ELECTRIC PARTS MAY BE DAMAGED e CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION DO NOT INSTALL NEAR CONCENTRATIONS
96. ng mode e The preset temperature will drop down as shown on ECO operation Item No 9 Push the COMFORT SLEEP button to choose the operating hours Repeat pushing to setect the hours 1hr 3hr 5hr or 9hr f the COMFORT SLEEP button is pushed again means cancel comfort sleep mode In the normal condition after switching one circuit breaker 3 minute delay time for compressor and 1 hour for plasma air purifier are set for the maintenance of the unit fF TOSHIBA N AB GAO Og v C Lt PM HiPOWER ECO 625 aai I PRESET MODE SWING a CLOCK FILTER RESET
97. ntinued for 2 minutes in B zone zone defrost operation starts C zone When TeO TE 2 3 continued for 2 minutes in C zone defrost operation starts The necessity of defrost operation is detected by the outdoor heat exchanger temperature The conditions to detect the necessity of defrost operation differ in A B or C zone each Table 1 Defrost operation Defrost operation in A to C zones 1 Stop operation of the compressor for 20 seconds 2 Invert ON 4 way valve 10 seconds after stop of the compressor 3 The outdoor fan stops at the same time when the compressor stops 4 When temperature of the indoor heat exchanger becomes 38 C or lower stop the indoor fan Finish of defrost operation Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat ex changer rises to 8 C or higher 2 Temperature of outdoor heat ex changer is kept at 5 C or higher for 80 seconds 3 Defrost operation continues for 15 minutes Returning from defrost operation 1 Stop operation of the compressor for approx 50 seconds 2 Invert OFF 4 way valve approx 40 seconds after stop of the compressor 3 The outdoor fan starts rotating at the same time when the compressor starts FILE NO SVM 12071 8 Louver control This function controls the air direction of the indoor unit 1 Louver The position is automatically controlled according to the operation po
98. od At least 50 cm Anchor Snow accumulation line bolts Holding frame Fig 10 4 1 59 FILE NO SVM 12071 1 Insall the outdoor unit in a location where there are no obstructions near its air intake or air outlet 2 When the outdoor unit is installed in a place that is always exposed to strong wind like on the coast or on a high story of a building secure the normal fan operation using a duct or a wind shield Especially in windy areas insall the unit to prevent the admission of wind Installation in the following places may result in trouble Do not install the unit in such places A place full of machine oil e A saline place such as the coast A place full of sulfide gas e A place where high frequency waves are likely to be generated such as from audio equipment welders and medical equipment Fig 10 4 2 10 4 3 Refrigerant piping connection Flaring 1 Cut the pipe with a pipe cutter X uu P n Fig 10 4 3 X Roughness Warp A 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm Rigid cluch type Outer dia 26 35 0 to 0 5 1 0 to 1 5 3 12 70 0 to 0 5 1 0 to 1 5 Fig 10 4 4 Imperial wing nut type Outer dia of copper pipe 26 35 1 5 to 2 0 12 70 2 0 to 2 5 Tightening connection Align the centers of the connecting pipes and tighten the flare nut as far as possible wit
99. om the outdoor unit controller it is assumed as a trouble Operations followed to judgment of serial signal from indoor side FILE NO SVM 12071 9 2 Operation Description 9 3 1 Basic operation 26 1 26 2 Cooling Heating operation 27 3 AUTO 27 4 DRY operation ease 27 2 Indoor fan motor control wp enin tonta d en tu rua 28 9 Outdoor fan motor control an Rasen 30 4 Capacity 31 5 Current release Control TERN 31 6 Release protective control by temperature of indoor heat exchanger 32 7 Defrost control Only in heating 33 CONO E E E 34 T POSION oorp TREE 34 2 Air direction adjustment coucou sunt 34 d WILD Soest mus MEM CMM DIES IDE __ 34 IMMUNE 35 10 Tempor yV oper AUC m EDU 36 11 Discharge temperature control 36 Wz Pulse motor valve PMV COMPO 37 38 14 Remote Controller A or B selection
100. ommend to the owner to perform maintenance periodically when using over long periods of time Be sure to follow the precautions provided here to avoid safety risks The symbols and their meanings are shown below DANGER indicates that incorrect use of this unit can result in a high possibility of severe injury 1 or death WARNING It indicates that incorrect use of this unit may cause severe injury of death CAUTION It indicates that incorrect use of this unit may cause personal injury 2 or property damage 3 1 Asevere injury refers to blindness injury burns hot or cold electrical shock bone fracture or poisoning that leaves aftereffects and requires hospitalization or extended out patient treatment 2 Personal injury means slight accident burn or electrical shock which does not require admission or repeated hospital treatment 3 Preperty damage means greater damage which affects assets or resources For general public use Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene sheathed flexible cord design HO7RN F or cord designation 60245 IEC66 1 5 or more Shall be installed in accordance with national wiring regulations CAUTION New refrigerant air conditioner installation e THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER R410A refrigerant is apt to be affected by impurities such as water oxidizing membra
101. ontroller 10 M 08 When the remote controller switching function is set B appears in the remote controller display When the remote controller setting is A there is no indication at this position Comfort sleep Indicates when comfort sleep is activaled Push comfort sleep button to select Quiet Indicates when quiet is activated Push quiet button to start and push it again to stop operation One Touch Indicates when one touch comfort is activated Push one touch button to start the operation Swing Indicates when louver is swing Push swing button to start the swing operation and push it again to stop the swing operation FILE NO SVM 12071 10 INSTALLATION PROCEDURE 10 1 Installation Diagram of Indoor and Outdoor Units 50 mm or more For the rear left and left piping 1 Installation UR Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation Do not allow the drain hose to get slack MD Cut the piping hole sloped Shield pipe slightly 8 Flat head wood screw Flat head wood screw Make sure to run the drain hose sloped downward ff A MAN yl The auxiliary piping can be connected to the left rear left rear 42 8 Flat head Remote holder right right bottom right or bottom wood screw left 2 2 Wireless remote control Right al V
102. operation function mm FILE NO SVM 12071 1 Basic 2 Cooling Heating operation operation The operations are performed in the following parts by controls according to cooling heating conditions 1 Receiving the operation ON signal of the remote controller the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit 2 At the indoor unit side the indoor fan is operated according to the contents of 2 Indoor fan motor control and the louver according to the contents of 8 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor pulse motor valve and 4 way valve according to the operation signal sent from the indoor unit Operation ON Setup of remote controller Indoor unit control Indoor fan motor control Louver control Operation Hz Control Requierment Sending of operation command signal Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control Outdoor unit control 4 way valve control m du EE n heating operation Pulse Motor valve control AUTO operation 1 Detects the room temperature Ta when Selection of operation mode the operation started As shown the following figure the operation starts by 2 Selects an operation mode from Ta in selecting automatically the status of room temperature the left figure Ta when starting AUTO operation 3 Fan ope
103. opper pipes with nominal dimensions 1 2 and 5 8 New tools for R410A As pressure is high it is impossible to measure by means of Gauge manifold uo conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed In order to increase pressure resisting strength hose materials Charge hose p and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur Electronic balance for refrigerant charging The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 Torque wrench nominal diam 1 2 5 8 By increasing the clamp bar s receiving hole strength of spring in Flare tool clutch type p p the tool has been improved oa Used when flare is made by using conventional tool Connected to conventional vacuum pump It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose The charge hose connecting part has two ports one for conventional refrigerant 7 16 UNF 20 threads per inch and one for R410A If the vacuum pump oil mineral mixes with R410A a sludge may occur and damage the equipment Vacuum pump adapter Gas leakage d
104. or RAS 22N3AV E 706 Sensor 26 TS Sensor 26 TO Sensor 26 UNS TD Sensor 04 705 pn Location 43162331 HEATSINK 43160377 TEMPERATURE SENSOR 43169881 PC BOARD 43T50304 SENSOR HEAT EXCHANGER 43160392 TERMINAL 5P 43162313 BASE PLATE PC 43160326 FUSE 106 TOSHIBA CARRIER THAILAND CO LTD
105. ore service mode was engaged Fig 9 4 1 FILE NO SVM 12071 11 4 2 Caution at Servicing 1 After using the service mode of remote controller finished press the 5 button to reset the remote controller to normal function 2 After finished the diagnosis by the remote controller turn OFF power supply and turn its ON again to reset the air conditioner to normal operation However the check codes are not deleted from memory of the microcomputer 3 After servicing finished press CLR button of remote controller under service mode status to send code 7F to the indoor unit The check code stored in memory is cleared Table 11 4 1 Block distinction distinction Operation of diagnosis function Air Action and Judgment ner Block ene Cause of operation conditioner BM error Indoor P C TA sensor The room Operation Flashes when Check the sensor TA and connection temperature sensor is continues error is detected 2 In case of the sensor and its short Circuit or disconnection connection is normal check the P C board Lt i1 TC sensor The heat Operation Flashes when Check the sensor TC and connection LIO exchanger temperature continues error is detected 2 In case of the sensor and its sensor of the indoor unit connection is normal check the is out of place disconnection P C board short circuit or migration Fan motor of the indoor unit All OFF Flashes when Check the fan
106. ork of item 1 in D assembly 2 Remove screw ST1T 4 x 10L 2 pcs of the Inverter cover upper part of the front cabinet If removing the inverter cover in this condition P C board can be checked f there 15 no space above the unit perform work of 1 in Be careful to check the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting polarity by discharging resistance approx 100040W or plug of soldering iron to terminals a of the C14 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 760uF or 500uF on P C board Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage remains according to trouble type in some cases This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between 4 Remove screw 571724 x 10L 4pcs fixing the terminal part of inverter box to the main 5 Remove the front cabinet by performing step 1in Q and remove the fixing screws ST11T 4 x 10L for securing the main body and inverter box 6 Remove various lead wires from the holder at upper part of the inverter box 7 Pull the inverter box upward 8 Disconnect connectors of various lead wires Requirement As each connector has a lock mecha nism avoid to remove the connector by holding the lead wire but
107. ow to assemble the electric parts box 1 Hook the top part of the electric parts box assembly onto the claws on the back body and secure it using the fixing screw Now attach the display unit Connect the connectors for the fan motor and louver motor 2 Secure the grounding wire using the fixing screw Insert the TC sensor into the sensor holder Be absolutely sure to loop the grounding wire and TC sensor leads once at the bottom 88 FILE NO SVM 12071 ra I _ Horizontal louver 1 Remove shaft of the horizontal louver from the back body First remove the left shaft and then remove other shafts while sliding the horizontal louver leftward Evaporator 1 Follow to the procedure in the item 2 Heat exchanger 2 Remove the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger 2 Screws 4 Remove two fixing screw on the heat exchage fixing holder to separate the heat exchage from the back 89 FILE NO SVM 12071 recur EE __ Bearing 1 Follow to the procedure in the item a 2 Remove the two screws used to secure the bearing base screws 3 Remove the bearing base Caution at assembling f the bearing is out from the housing push it into the specified position and then incorporate itin the main body Bearing 90
108. pacitor For boost smoothing Diode block Turn OFF the power supply breaker Discharge all three capacitors completely Check that safety valve at the bottom of capacitor is not broken Check that vessel is not swollen or exploded Check that electrolytic liquid does not blow off Check that the normal charging characteristics are shown in continuity test by the tester 9 ZI PA Case that product is good Pointer swings once and returns slowly When performing test once again under MCC 5009 another polarity the pointer should return Soldered surface o Heat sink IGBT side C12 C13 C14 5001 400 or 760uF 400V 1 Turn OFF the power supply breaker 2 Completely discharge the four electrolytic capacitors 3 Remove the diode block from the P C board which is soldered in place 4 Use a multimeter with a pointer to test the continuity and check that the diode block has the proper rectification characteristics Test d Hesistance value etes Ie in good product 10 to 20 Q when the multimeter probe is reversed j FILE SVM 12071 11 9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1 Symptom Outdoor fan motor does not rotate Outdoor fan motor stops within several 10 seconds though it started rotating Outdoor fan motor rotates or does not rotate according to the position where the fan stopped etc Remote controller check code 02 Outdoor block 1A
109. plug between terminals of the electro lytic capacitor 500uF of C14 with printed CAUTION HIGH VOLTAGE on P C board Discharging position Discharging period 10 seconds or more Plug of soldering A iron FILE NO SVM 12071 Does outdoor fan operate normally YES supply Does compresser NO Remove connector CN300 of outdoor fan motor Check winding resistance by ohmmeter are correct Check rotor locking by rotate with hand Can it rotate Replace control board Compressor is normal Turn OFF power supply Replace outdoor fan motor Check compressor winding resistance correct NO Replace compressor Turn ON power supply Check voltage of the compressor connector is in rate AC150V 270V Replace Replace control compressor board 11 8 How to Check Simply the Main Parts 11 8 1 How to check the P C board Indoor unit 1 Operating precautions 1 When removing the front panel or the P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the P C board and do not apply force to the parts 3 When connecting or disconnecting the connec tors on the P C board hold the whole housing Do not pull at the lead wire 11 8 2 How to shorten time for start the compressor 1 Turn on remote 2 Setting requirment operation 3 Push off remote 4 Press SET button while pr
110. psed time reaches 1000 hours after air conditioner operation the FILTER indicator lights After cleaning the filters turn off the FILTER indicator How to Turn Off FILTER Indicator Push RESET button on the indoor unit NOTE If RESET button is pushed while the FILTER indicator is not lit the indoor unit will start the automatic operation When you want a temporary operation while the FILTER lamp lights push RESET button to turn off the FILTER lamp ied d s Operation condition for model to Europe market When an indoor unit receives One Touch Comfort Signal from the remote controller the indoor unit operates as following 1 Air conditioner starts to operation when the signal is received even if the air conditioner was OFF 2 Operation mode is set according to room temperature the same as AUTO mode 3 Target temperature is 24 C 4 Louver position is set as stored position of the operating mode 5 Fan is controlled as followings FILE NO 12071 9 3 Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is restored This function is not set to work when shipped from the factory Therefore it is necessary to set it to work 9 3 1 How to Set the
111. ration continues until an 1 When reselecting the operation mode the fan speed operation mode is selected is controlled by the previous operation mode 4 When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20 C or more the fan operation is Cooling operation performed with Super Ultra LOW mode for 3 minutes Then select an operation mode 5 If the status of compressor OFF continues for 15 minutes the room Heating operation temperature after selecting an operation mode COOL HEAT reselect an operation mode Ta Monitoring Fan DRY operation 1 Detects the room temperature Ta when DRY operation is performed according to the difference the DRY operation started between room temperature and the setup temperature 2 Starts operation under conditions in the as shown below left figure according to the temperature In DRY operation fan speed is controlled in order to difference between the room tempera prevent lowering of the room temperature and to avoid ture and the setup temperature Tsc air flow from blowing directly to persons setup temperature Tsc Settemperature on remote controller Ts 0 0 to 1 0 3 When the room temperature is lower 1 C or less than the setup temperature turn off the compressor Fan speed 27 FILE NO SVM 12071 2 Indoor fan In cooling operation motor control This operation controls the fan spe
112. rature range Indoor Cooling Heating C 21 32 28 21 32 28 Accessary Indoor unit Installation plate Wireless remote controller Batteries Batteries cov Remote controller holder oshiba New IAQ fiter Long Mounting screw 6 04 x 25L Pan head wood screw 2 23 1 x 16L 1 23 1 x 25L Plasma air purifier nstallation instruction Owner s manual Drain nipple Water proof rubber cap The specification may be subject to change without notice for purpose of improvement Outdoor unit FILE NO SVM 12071 2 2 Operation Characteristic Curve Heating Cooling RAS 22N3KV E RAS 18N3KV E v RAS 22N3KV E RAS 18N3KV E e e e e e e e Oo LO v 10 20 30 40 50 60 70 80 90 100 110 120 0 10 20 30 40 50 60 70 80 90 100 110 120 0 RPS Compressor Speed Compressor Speed RPS 2 3 Capacity Variation Ratio According to Temperature lt Heating gt lt Cooling gt 120 Indoor DB20 C Indoor Air Flow Volume High Pipe Length 7 5m Condition 6 6 lt I D m2 gt CN LL IO N D g un Condition 95
113. re operation 1 remote control can control only 1 indoor unit 3 In wire operation remote controller will return to initial condition PRESET TIMER and CLOCK will return to initial condition when user shutdown power supply of air conditioner How to install the air inlet grille on the indoor unit e When attaching the air inlet grille perform the same process as for removal but in severse order 10 3 5 Piping and drain hose installation Piping and drain hose forming Since dewing results in a machine trouble make sure to insulate both connecting pipes Use polyethylene foam as insulating material FILE NO SVM 12071 Rear mm Roar ion Bottom _ m jm Bottom right Js Rgh 1 Die cutting front panel slit Cut out the slit on the left or right side of the front panal for the left or right connection and the slit on th bonttom left or right side of the front panel for the botto left or right connection with a pair of nippers Changing drain hose C 65 O E 2 A D Q D E QE 2 Changing drain hose For leftward connection bottom leftward connection and rear leftward connection s piping it is necessary to change the drain hose and drain cap How to remove the drain cap Clip the drain cap by needle nose pliers and pull out
114. right air filters 86 FILE NO SVM 12071 Pera NN Front panel 4 Press PUSH part under the front panel and remove hooks of the front panel from the installation plate Installation plate Front panel 5 Remove the front panel fixing screws 4 pcs 6 Take off four hooks of panel from rear side Four hooks How to assemble the front panel 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 4 pcs at the top side of the front panel to the rear plate 2 Tighten four screws Incomplete hanging or incomplete pressing may cause dewdrops or generation of a fluttering sound 87 FILE NO SVM 12071 me Electric parts 1 Follow the procedure up to 6 in CD above box assembly 2 Remove screw of earth lead attached to the end plate of the evaporator 3 Remove the lead wire cover and remove connector for the fan motor and connec tor for the louver motor from the electric parts box assembly 4 Pull out TC sensor from sensor holder of the evaporator Electric part box cover 5 Disengage the display unit by simply pushing Earth Screw 1C Sensor at the top of the display unit 6 Remove the fixing screw that secures the 5 Mh Louvar electric parts box assembly LED assembly and remove the assembly Fixing screw Fixing screw LED assembly H
115. run and check for smoking unusual sounds and other abnormalities If this check is omitted a fire and or electric shocks may occur Before proceeding with the test run install the front panel and cabinet Ensure that the following steps are taken when doing repairs on the refrigerating cycle 1 Do not allow any naked flames in the surrounding area If a gas stove or other appliance is being used extinguish the flames before proceeding If the flames are not extinguished they may ignite any oil mixed with the refrigerant gas Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed very carefully when conducting checks since directly touching the parts on the control circuit board may result in electric shocks 12 1 Indoor Unit roca Front panel 1 Stop operation of the air conditioner and turn off its main power supply 2 Open the air inlet grille push the arm toward the outside and remove the grille 3 Remove the left and
116. se motor This function controls throttle amount of the 1 When starting the operation move the valve valve PMV refrigerant in the refrigerating cycle once until it fits to the stopper Initialize control According to operating status of the air n this time Click sound may be heard conditioner this function also controls the open 2 Adjust the open degree of valve by super heat degree of valve with an expansion valve with amount SH control pulse motor 3 If the discharge temperature was excessively up adjust the open degree of valve so that it otarting up is in the range of set temperature Discharge temp control 4 When defrost operation is performed the open degree of valve is adjusted according to each setup conditions during preparation for defrost or during defrost operation 4 way valve is inversed Move to initial position Compressor ON Td release control 5 To turn off the compressor while the air conditioner stops by control of the thermostat or by remote controller adjust the open degree of valve to the setup value before stop of the compressor SH control PMV open degree control Hoom temp sensor Ta sensor control otop by remote controller SH Super Heat amount Ts Temperature of suction pipe of the compressor Tc or Te Heat exchanger temperature at evaporation side PMV Pulse Motor Valve FILE NO SVM 12071 13 Self Cleaning f
117. sing dimensions and opposite side dimension of flare nut For 012 7 copper pipe of the refrigerant piping are lengthened The used refrigerating oil is changed and mixing of oil may cause a trouble such as generation of sludge clogging of capillary etc Accordingly the tools to be used are classified into the following three types 1 Tools exclusive for R410A Those which cannot be used for conventional refrigerant R22 2 Tools exclusive for R410A but can be also used for conventional refrigerant R22 3 Tools commonly used for R410A and for conventional refrigerant R22 The table below shows the tools exclusive for R410A and their interchangeability Tools exclusive for R410A The following tools for R410A are required Tools whose specifications are changed for R410A and their interchangeability R410A Conventional air water air water heat pump installation heat pump installation Used tool Existence of Whether conventional Whether new equipment new equipment equipment can be can be used with o R410A NET INN conventional s Fare Copper pipe gauge E aring by for adjusting flare tool Note 1 Note 1 projection margin Torque wrench For 012 7 c Gauge manifold Evacuating refrigerant Charge hose charge run check etc Vacuum pump refrigerant charging 10 Charging cylinder Refrigerant charge Note 2 Note 1 When flaring is carried out for R410A using the convent
118. sition mode COOL HEAT The set louver position is stored in memory by the microcomputer and the louver returns to the stored position when the next operation is performed Cooling heating memory position The angle of the louver is indicated as the horizontal angle is 0 1 Louver position in cooling operation Cooling operation AUTO COOL 2 Initial setting of Cooling storage position Louver Horizontal blowing 37 4 2 Louver position in heating operation Heating operation AUTO HEAT Initial setting of Heating storage position Louver Directs downward 76 9 he louver position can be arbitrarily set up by pushing FIX button 2 Air direction adjustment Horizontal Inclined Blowing Inclined Horizontal blowing blowing downward blowing blowing 3 Swing Swing operation is performed in width 35 with the stop position as Swing the center When pushing SWING If the stop position exceeds either upper or lower limit position swing Dutton during operation operation is performed in width 35 from the limit which the stop the louver starts position exceeded swinging Aes FILE NO SVM 12071 9 ECO operation When pushing ECO button on the remote controller a Room temp Set temp 6 5 6 0 1 0 0 5 BENT Economic operation is performed Cooling operation This function operates the air conditioner with the difference
119. splaced or discharged remote control e Pressing the RESET button the unit can start or stop without using the remote control e Operation mode is set on AUTOMATIC operation preset temperature is 24 C and fan operation is automatic speed TIMER OPERATION Setting the ON Timer 1 Press Du 2 Press Press CLR Set the desired ON timer Set the timer Cancel the timer Press Press Press Setting the OFF Timer EIE v SET CLR Set the desired OFF timer Set the timer Daily timer allows the user to set both the ON amp OFF timers and will be activated on a daily basis Setting Daily Timer A ON 1 Press A 2 Press Set the ON timer 3 Set the OFF timer 4 Press Press SET SET button during the f or mark flashing During the daily timer is activation both arrows f indicated Note Keep the remote control in accessible transmission to the indoor unit otherwise the time lag of up to 15 minutes will occur The setting will be saved for the next same operation 2 AE ues FILE NO SVM 12071 9 PRESET OPERATION Set your preferred operation for f
120. stallation work ensure that there is no leakage of refrigerant gas If the refrigerant gas leaks out of the pipe into the room and is heated by fire or something else from a fan heater stove or gas range it causes generation of poisonous gas Make sure the equipment is properly earthed Do not connect the earth wire to a gas pipe water pipe lightning conductor or telephone earth wire Improper earth work may be the cause of electrical shock Do not install the unit where flammable gas may leak It there is any gas leakage or accumulation around the unit it can cause a fire Do not select a location for installation where there may be excessive water or humidity such as a bathroom Deterioration of insulation may cause elestrical shock or fire Installation work must be performed following the instructions in this installation manual Improper installation may cause water leakage electrical shock or fire Check the following items before operating the unit Be sure that the pipe connection is well placed and there are no leaks Check that the service valve is open If the service valve is closed it may cause overpressure and result in compressor damage At the same time if there is a leak in the connection part it may cause air suction and overpressure resulting burst or injury In pump down operations ensure to perform the following procedures Do not inject air into the refrigeration cycle Be sure to close both service v
121. tart the unit Gas circulation amount is down Measure gas pressure Thermo operation of compressor Gas shortage Gas leak Pipe clogging 2 If the unit stops once it does not operate until the power will be turned on again To item of Outdoor unit does not operate 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed Discharge temp error check code 03 1E Sensor temp error check code 02 1C Gas leak P M V is defective TS Refer to the chart in 11 6 Miswiring of connecting wires of indoor outdoor units Clogging of pipe and coming off of TC sensor FILE NO SVM 12071 11 6 Check Code 1C Miswiring in indoor outdoor units and 1E Check procedure Discharge temp error Gas leakage disconnection of TS TC sensors Check code 02 1C gas leakage Check code 03 1E Valve drive check Is coil of the pulse motor valve NO P M V correctly set Set it correctly NO Disconnect PMV connector then check coil resistance Is it 46 40 NO white Red Red Orange Yellow Red Blue Red YES Are temp sensors of indoor outdoor units correctly set to the holder NOTE NO The temperature sensors which are used to control pulse motor valve Set it correctly include indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE outdoor suction temp sensor TS and outdoor sensor TO
122. te with R410A If other refrigerant than R410A is mixed pressure in the refrigeration cycle becomes abnormally high and it may cause personal injury etc by a rupture Confirm the used refrigerant name and use tools and materials exclusive for the refrigerant R410A The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air condi tioner using R410A as refrigerant To prevent mischarging the diameter of the service port differs from that of R22 If a refrigeration gas leakage occurs during installation servicing be sure to ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas may occur When installing or removing an air conditioner do not allow air or moisture to remain in the refrigeration cycle Otherwise pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged with a large volume of refrigerant is installed in a small room it is necessary to exercise care so that even when refrigerant leaks its concentration does not exceed the marginal level If the refrigerant gas leakage occurs and its concen
123. ten the flange nut turn V counterclockwise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 4 pcs holding Pd by hands so that the fan motor does not AN fall Precautions when assembling the fan Flange nup motor Tighten the flange nut using a tightening torque of 4 9 Nem 97 FILE NO SVM 12071 LAE ar Lae 1 Perform work of item 1 of D and 3 4 5 2 Extract refrigerant gas 3 Remove the partition board ST1T 4 x 10L pcs 4 Remove the sound insulation material 5 Remove terminal cover of the compressor and disconnect lead wire of the compressor from the terminal 6 Remove pipe connected to the compressor with a burner 7 Remove the fixing screw of the bottom plate and heat exchanger ST1T 4 x 10L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST1T 4 x 10L 1 pc 9 Pull upward the refrigeration cycle 10 Remove NUT 3 pcs fixing the compres sor to the bottom plate 1 Perform work of item 1 of 0 2 Remove screws fixing the reactors 98 ham o Leo Led Iro Le De In Lr In Le En Leck roc NR SNR Reactor 1 Detachment 1 Perform step 1 in all the steps in and 1 in 2 Remove the coil by rotating it at 90 toward either direction 2 Attachment 1 Insert a valve coil in
124. tration exceeds the marginal level an oxygen starvation accident may result Be sure to carry out installation or removal according to the installation manual Improper installation may cause refrigeration trouble water leakage electric shock fire etc Unauthorized modifications to the air conditioner may be dangerous If a breakdown occurs please call a qualified air conditioner technician or electrician Improper repair may result in water leakage electric shock and fire etc 3 2 Refrigerant Piping Installation 3 2 1 Piping Materials and Joints Used For the refrigerant piping installation copper pipes and joints are mainly used Copper pipes and joints suitable for the refrigerant must be chosen and installed Furthermore it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants 1 Copper Pipes It is necessary to use seamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg 10 m Do not use copper pipes having a collapsed deformed or discolored portion especially on the interior surface Otherwise the expansion valve or capillary tube may become blocked with contaminants As an air conditioner using R410A incurs pres sure higher than when using R22 it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in Table
125. ts for model R410A are required and installation work must be done in accordance with the manual HFC type refrigerant R410A has 1 6 times more pressure than that of conventional refrigerant R22 Use the specified pipe parts and ensure correct installation otherwise damage and or injury may be caused At the same time water leakage electrical shock and fire may occur Be sure to install the unit in a place which can sufficiently bear its weight If the load bearing of the unit is not enough or installation of the unit is improper the unit may fall and result in injury Electrical work must be performed by a qualified elecrical engineer in accordance with the code governing such installation work inernal wiring regulations and the manual A dedicated circuit and the rated voltage must be used Insufficient power supply or improper installation may cause electrical shock or fire Use a cabtyre cable to connect wires in the indoor outdoor units Midway connection stranded wire and single wire connections are not allowed Improper connection or fixing may cause a fire Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be firmly placed Improper cover installation may cause increased heat fire or electrical shock at the terminal area Be sure to use only approved accessories or the specified parts Failure to do so may cause the unit to fall water leakage fire or electrical shock After the in
126. unction Unit now performing cooling or dry operation 1 Purpose The Self Cleaning operation is to mini mize the growth of mold bacteria etc by running the fan and drying so as to keep the inside of the air conditioner clean Self Cleaning operation When the cooling or dry operation shuts down the unit automatically starts the Push STOP button Self Cleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown after Only timer indicator lights and Self Cleaning operation starts which the Self Cleaning operation stops The Self Cleaning operation is not performed after a heating operation Operation Time set now elapses 1 When the stop signal from the remote controller or timer off function is received only the timer indicator light 2 The period of the Self Cleaning Operation stops operation is determined by the duration of the operation performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified During Self Cleaning operations period the unit stops operating The louver opens slightly The indoor fan oper ates continuously at a speed of 500 rpm Self Cleaning operation times Operation time Self Cleaning operation time Upto 10minutes 0 Cleaning Cooling Auto cooling Dry Heating Auto heating Auto fan on
127. ure 1 controller signal from being Press MODE during pushing CHECK B received simultaneously by both will show on the display and 00 will disappear units thus preventing both units and the air conditioner will turn OFF The Remote from operating Control B is memorized Picture Operation NOTE The indoor unit on which the remote controller selection has 1 Repeat above step to reset Remote been set to B receives the signal of Control to be A the remote controller also set to B 2 Remote Control A has not A display At the factory the remote controller 3 Default setting of Remote Control from selection is set to A on all the indoor units factory is A There is no A setting display TOSHIBA N TOSHIBA FILE NO SVM 12071 15 QUIET mode 16 COMFORT SLEEP 17 ShortTimer When the QUIET button is pushed the fan of the indoor unit will be restricted the revolving speed at speed L until the QUIET button is pushed once again cancel Quiet mode Cooling mode he preset temperature will increase as shown on ECO operation Item No 9 Push the COMFORT SLEEP button to choose the operating hours Repeat pushing to select the hours 1hr 3hr 5hr or 9hr f the COMFORT SLEEP button is pushed again means cancel comfort sleep mode Heati
128. uture use The setting will be memorized by the unit for future operation except air flow direction 1 Select your preferred operation 2 Press and hold for seconds to memorize the setting The mark displays 3 Operate the preset operation 10 AUTO RESTART OPERATION To automatically restart the conditioner after the power failure Power of the unit must be on Setting 1 Press and hold the RESET button on the indoor unit for 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 seconds e Do not operate ON timer and OFF timer 2 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink 11 QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press Start and stop the operation Note Under certain conditions QUIET operation may not provide adequate cooling due to low sound features 12 COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF COMFORT SLEEP Press lt Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 0 5 degree hour for 4 hours maximum 2 degrees increase 46 FILE NO SVM 12071 9 4 3 Names and Functions of Indications on Re
129. vacuum pump that the compound gauge s pointer does not return adapter Set the refrigerant cylinder to the electronic balance Open fully both packed valves at liquid and gas connect the connecting hose to the cylinder and the sides connecting port of the electronic balance and charge liquid refrigerant For refrigerant charging see the figure below Place the handle of the gauge manifold Low in the fully opened position and turn on the vacuum pump s power switch Then evacuating the refrigerant in the cycle 1 Never charge refrigerant exceeding the specified amount 2 the specified amount of refrigerant cannot be charged charge refrigerant bit by bit in COOL mode 3 Do not carry out additional charging When additional charging is carried out if refrigerant leaks the refrigerant composition changes in the refrigeration cycle that is characteristics of the air conditioner changes refrigerant exceeding the specified amount is charged and working pressure in the refrigeration cycle becomes abnormally high pressure and may cause a rupture or personal injury Indoor unit Outdoor unit Refrigerant cylinder siphon Check valve Jc QO PONES F Open close Closed valve for e om Service port Electronic balance for charging Fig 3 4 1 Configuration of refrigerant charging E FILE NO SVM 12071 1 Be sure to make setting so that liquid c
130. with sulfur and produce a fragile compound water solution which may cause a gas leakage Therefore use any other type of brazing filler at a hot spring resort etc and coat the surface with a paint When performing brazing again at time of servicing use the same type of brazing filler 3 5 2 Flux 1 Reason why flux is necessary By removing the oxide film and any foreign matter on the metal surface it assists the flow of brazing filler n the brazing process it prevents the metal surface from being oxidized By reducing the brazing fillers surface tension the brazing filler adheres better to the treated metal s 2 Characteristics required for flux Activated temperature of flux coincides with the brazing temperature Due to a wide effective temperature range flux is hard to carbonize t is easy to remove slag after brazing e he corrosive action to the treated metal and brazing filler is minimum t excels in coating performance and is harm less to the human As the flux works in a complicated manner as described above it is necessary to select an adequate type of flux according to the type and shape of treated metal type of brazing filler and brazing method etc 3 Types of flux Noncorrosive flux Generally it is a compound of borax and boric acid It is effective in case where the brazing tem perature is higher than 800 C e Activated flux
131. y 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 Auxiliary pipes Connecting cable Installation plate Fig 10 3 20 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 one another 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 connecting pipes Use polyethylene foam as insulating material When bending a pipe be careful not to crush it 10 3 6 Indoor Unit Fixing 1 Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hook 2 Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate 3 While pressing the indoor unit onto the wall hook it at the lower part on the installation plate Pull the indoor unit toward you to confirm that it is firmly hooked on the installation plate Push unhook Fig 10 3 21 For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing its bottom up at the specified parts Push Push Fig 10 3

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