Home

SERVICE MANUAL

1. 1050 RAS 18SKVR E RAS 22SKVR E 2 5 2 5 mel Air filter Air inlet Plasma air purifier Front panel S 50 50 5 Heat exchanger Knock out system Knock out system Ai ionizer cs 721 78 Installation plate hanger 568 99 252 S E3 amp Od 56 24 Wireless remote controller Installation plate hanger Connecting pipe 0 39m Drain hose 0 5 mm Connecting pipe 0 49m For 18 22 series Flare 12 70mm Flare 6 35mm 132 786 132 235 235 Remote controller holder 215 215 85 23 i 05 i 5 0222223 1009 9 o Fo Ts Sect 1 pr AN k o u T M Ht eee Hanger Hanger 47 215 5 262 5 262 5 1535 109 Center line Instrallation plate outline 15 4 2 Indoor Unit 1050 RAS 18SKV E RAS 22SKV E
2. Front pane Air filler Air inlet ite z _ go 50 T Heat exchanger Knock out system Knock out system cs A cm _ 78 Installation plate hanger 568 s 56 24 Wireless remote controller Installation plate hanger Connecting pipe 0 39m Drain hose 0 5 mm Connecting pipe 0 49m For 18 22 series Flare 12 70mm Flare 6 35mm 26 132 786 132 Remote controller holde 235 235 215 215 85 23 cesse 0 Ea 24 26 55 53 S i5 JV 1 pr X ote E Hanger Hanger 47 215 5 262 5 262 5 153 5 109 Center line Instrallation plate outline 16 73 5 4 3 Outdoor Unit leg part 600 90 320 306 290 dia 11 14U shape hole for dia 8 10 anchor bolt Anchor bolt long hole pitch 8 dia 7 hole 550 483 449 7 5 for fixing outdoor unit dia 11x14 long hole for dia 8 10 anchor bolt Packed valve cover Fan guard Connecting pipe port Pipe dia 6 35
3. 47 9 4 1 Parts Name of Remote Controller 47 9 4 2 Operation of remote control 8 47 9 4 3 Name and Functions of Indications on Remote Controller 50 SOF Operation flow and applicable data 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 outdoor controller controls the operation as shown in the left and also controls the compres sor outdoor fan motor 4 way valve and pulse Modulating valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Air conditioner Air purifier Operation select COOL HEAT AUTO DRY Temperature setup Air direction Swing Air volume select AUTO LOW LOW MED MED HIGH ECO e COMFORT
4. Connecting pipe port Pipe dia 12 7 600 Z View 2 dia 11x14 U shape hole 50 or more Intake M Intake 320 250 or more gt o 100 or more 6 C 200 or more e Outlet Outside line T pn distance from wall Outside line of product 2 dia 7 hole Outside line of product Detailed leg part When installing the outdoor unit leave open in at least two of directions A B C and D shown in the figure below 2 dia 11x14 long hole Mounting dimensions of anchor bolt 1 7 5 WIRING DIAGRAM 5 1 RAS 18SKV E RAS 18SAV E RAS 22SKV E RAS 22SAV E RAS 18SKVR E RAS 18SAV E RAS 22SKVR E RAS 22SAV E COMPRESSOR en 4 RED P04 aya BLK d UR PU 205 BOARD Q300 305 wel
5. Is it possible to rotate cross flow fan by hand properly 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 9 and 3 of motor connector CN31 Fan motor operates normally 72 4 Indoor fan motor automatically starts to rotate by turning on power supply For DC fan motor in RAS 18 22SKV E RAS 18 22SKVR E lt Cause gt The IC is built in the indoor fan motor Therefore the board is also mounted to inside of the motor If the board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply lt Inspection procedure gt 1 Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 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 Check output DC voltage of fan motor on P C board P C board Measure voltage between 3 GND BLACK and 5 V line YELLOW of motor connector CN31 while indoor fan motor is rotating DC 1 0V or more Under DC 1 0V P C board is defective Motor is defective Replace P C board Replace mot
6. MES 2 09 062 000 ZHOS 076 006 1 INVHOVIG 32018 H31fhidWOO OHOIIN LINN 404 25 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 for motor and the outdoor fan motor And the capacity proportional 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 Modulating valve PM V 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 c
7. only model RAS 18 22 SKVR E Procedures High voltage 1 Follow to the procedure in the item generator 2 To remove the air ionizer from the back body pull it toward you 3 Disconnect the connectors of the high voltage generator 4 Remove the fixing screws 2 pcs and remove the high voltage generator from the evaporator lt How to assemble the high voltage generator gt 1 Insert the high voltage generator straight into the evaporator voltage generator from the evaporator 2 Secure it using the fixing screws 2 pcs 3 Connect the connectors of the high voltage generator 4 Attach the air ionizer to the back body 88 Remarks Electric parts box assembly Procedures 1 Follow the procedure up to 3 in above 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 5 Disengage the display unit by simply pushing at the top of the display unit 6 Remove the fixing screw that secures the electric parts box assembly LED assembly and remove the assembly lt How to assemble the electric parts box gt 1 Hook the top part of the electric parts box assembly onto the claws on the back body and secure
8. 9 amp d Lt AM PMILUCLII 5 mmm NN 6 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 Press the Hi POWER button to start and press it again to stop the operation PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is flashing Press another button to turn off the mark ECO indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation 10 A B change indicator remote controller 17 When the remote controller switching function is set 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 Press comfort sleep button to selectter 12 Quiet Indicates when quiet is activated Press quiet button to start and press it again to stop operation 13 One Touch Indicates when one touch comfort is activated Press one touch button to start the operation 14 Swing 50 Indicates when louver is swing Press sw
9. Is it possible to detect NO DC 1V or of motor connector CN31 COPIES Indoor YES Start to operate indoor unit in cooling operation at airflow level LOW Is it possible to detect DC 310 340V between and of motor connector CN31 NO Does indoor erate 2 s Turn off indoor unit and remove Motor connection condition connector from motor Is it possible to detect DC 15V Then push START STOP button perwer 20 Qo of on remote controller to stop connector flashing lamp on indoor unit Is it possible to detect DC 15V between S and 3 of motor connector CN31 Peplace main Change airflow level P C board to HIGH Start to operate the indoor unit in except heating operation At this time is it possible to detect DC 1V or more between 5 and 3 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 Vor ae between and of motor connector 59 Check this condition within 15 seconds after starting unit NO Peplace bearing NO Is it possible to change airflow level to HIGH YES
10. Vacuum pump adapter Vacuum evacuating No Electronic balance for refrigerant charging Refrigerant charge No Refrigerant cylinder Refrigerant charge Yes No Leakage detector Gas leakage check Yes No Charging cylinder No Refrigerant charge Note 2 Note 1 When flaring is carried out for R410A using the conventional flare tools adjustment of projection margin is necessary For this adjustment a copper pipe gauge etc are necessary Note 2 Charging cylinder for R410A 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 necessary as the general tools 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 2 Torque wrench For 26 35 09 52 3 Pipe cutter Reamer 9 Hole core drill 265 Pipe bender 10 Hexagon wrench Level vial Opposite side 4mm 11 Tape measure 12 Metal saw Screwdriver Spanner or Monkey wrench 0 Also prepare the following equipments for other installation method and run check 1 Clamp meter 2 Thermometer 3 Insulation resistance tester 4 Electroscope 11 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 th
11. 3 Fan speed M L x 3 4 L Tsc Set value Calculated with linear approximation from M and L Fig 5 In starting and in stability In stability Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation start FAN AUTO When 12 to 25 minutes passed after operation and room temp is higher than set temp 3 C start and room temp is 3 C or lower than set temp When 25 minutes or more passed after operation start FAN Manual Room temp lt Set temp 4 C Room temp gt Set temp 3 59 31 3 Outdoor fan motor control reasons of controlling Air conditioner ON Remote controller Indoor unit controller 1 Outdoor unit operation command Outdoor fan control 2 Fan speed gt 400 when the motor stopped NO Fan motor ON 3 Fan lock NO Operation flow and applicable data etc The blowing air volume at the outdoor unit side is controlled Receiving the operation command from the controller of indoor unit the controller of outdoor unit controls fan speed For the fan motor a DC motor with non stage variable speed system is used However it is limited to 8 stages for OFF status fan motor continues YES Air conditioner Alarm OFF display 4 Motor operates as shown in the table below Description 1 The operation command sent from the remote controller is processed by the indoor unit controller and trans
12. Bate j MCC 2009 MOS FET m P25 R221 21 Al __ FAN MOTOR YEL P24 D gt R220 R320 ps P23 2 au Pa MIA __ YEL p22 38 A IA R219 R39 A LA BAW ee MES RR E E PULSE MOTOR VALVE 20 CN603 2 YEL 1 Loo Th 4A vo DBQ n FU IS 15 SUCTION PIPE ORN pU 2887 250 EMP SENSOR Ci2 a VARISTOR 16 R E 70 OUTDOOR Veer 373 RS aA m uad CN601 ener SURGE NT 91 ABSORBER TD 5 RELAY cee DISCHARGE PIPE REACTOR iA EMP SENSOR AC250V CN600 2 2 f P02 P33 P32 P31 P30 3 BLK FUSE ORNBLI WHI TEMP SENSOR PUR 1X2 77 2 112 as 3 9 amp 1 FOR Outdoor REACTOR 4WAY 14230 Terminal Block VALVE SKVR E only Rr wee eg pg ire ane ee 1 POWER _ SUPPLY 220 240V 50Hz lon E purifier Micro SW 220 230V 60Hz 213 Heat Indoor
13. Battery 2 Mounting screw 4 x 256x 6 Screw 4 106 2 Remote control holder x 1 gt Remote control holder mounting screw 3 1 x 16 2 lt Others gt Owner s manual Installation manual Fulorirated gas installation manual WEEE instruction EU instruction Product specification This model is not equipped with an extension drain hose Parts marked with asterisk are packaged with the outdoor unit 52 Accessory sheet Energy label Refrigerant label B W strips Energy efficiency labels 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 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 copper pipes with nominal dimensions 1 2 and 5 8 New tools for R410A New tools for R410A Applicable to R22 model Changes Gauge manifold As pressure is high it is impossible to measure by means of conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed Charge hose
14. Refer to items cleaning and check for the electric dust collector ionizer ionized wire units When the ionized wire is disconnected or when dirt is not cleaned even cleaned replace each unit YES Are the electric dust collector ionizer ionized wire units dirty Is an abnormal sound cracking noise heard from the electrode YES cT Replace the main P C board How to check output of the air purifier NO Caution on High Voltage Collector Be sure not to come to contact to the gray part or not to touch the ionized cables High voltage tester Replace the high voltage generator NO s No trouble 11 7 2 How to Check Whether the Minus lon Generator is Good or Not 18 22SKVR E only Turn off the power breaker once and turn on again after 10 seconds m NO MEC E Does the OPERATION indicator flash To item Power supply is not turned on YES Turn off the power breaker and remove CN41 Micro switch connector Short circuit between and pin of CN41 at PC side and turn on the power breaker after 10 seconds Is DC12V applied between Brown GND of of the NO Replace the power P C board or the housing assembly high voltage generator in the air purifier YES Primary check Is there conduction of micro switch connector under OFF status of the micro switch Front
15. Electrode Electrode s5 SHEET Terminal Block no NE nz 3 E BLK High voltage al E x WHI TGRN amp YEL Power Supply 21 Lo RED 4221 Ne CN51 8D ep RED Main P C Board 1 BRW MCC 5045 SIS 8 WH Fuse T m 4 TE D Heat Exchanger Sensor Fan Motor Thermo Sensor Varistore N e lt TUM Motor eH a 2 4 oo 5 BLU i une WHIT dd 5 873180514 eir DC5V O YEL Qo 2 3144 414 DC12VO DS 1 SE BLU 44 lt 5 5 915 YEL 7 10 616 PLU 616 2 Q 515 m Qa 7 7 BLU 717 HD 32 Louver Motor 5 Q 68866 C m HI o o5 TIERE tr WHI 5 20 18 6 SPECIFICATIONS OF ELECTRICAL PARTS 6 1 Indoor Unit Fan motor 18SKV E 18SKVR E for indoor 225 22SKVR E ICF 340 30 2 DC 340V 30W Room temp sensor TA sensor 10kQ at 25 C Heat exchanger temp sensor TC sensor 10kQ at 25 C 6 2 Outdoor Unit uction temp sensor TS sensor ischarge temp sensor TD sensor 62kQ 20 C utside air temp sensor TO sensor 10kQ 25 C 2 eat exchanger temp sensor sensor Inverter attached 10kO 25 C erminal block 6P ___ 204 250 18SAV E DA130A1F 27F 3 phases 4 poles 1100W 22
16. 3 When temperature of the indoor heat exchanger rises to 7 C or higher the capacity control operation returns to the usual control in cooling operation R zone In heating operation gt Prevent overpressure control for refrigerating cycle In heating operation the sensor of indoor heat ex changer detects condensation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Reduction of compressor speed When the value is in Q zone the compressor speed is kept Usual heating capacity control A c 1 When temperature of the indoor heat exchanger rises in the range from 50 C to 55 C the compressor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 46 C to under 55 the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 50 or when it drops below to 46 the capacity control operation returns to the usual control in heating operation R zone 7 Defrost control Operation flow and applicable data etc This function removes frost adhered to the outdoor Only in heating heat exchanger operation The temperature sensor of the outdoor heat ex changer Te sensor judges the frosting sta
17. Because of the fan speed L may cause not enough the cooling capacity or heating capacity 16 COMFORT SLEEP Cooling mode e The preset temperature will increase as show on ECO operation Item No 9 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to select the hours 1hr 3hr 5hr or 9hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode Heating mode e The preset temperature will drop down as show on ECO operation Item No 9 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to setect thehours 1hr 3hr 5hr or 9 hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode 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 17 Short Timer 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 TOSHIBA 43 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 Press 05 button to t
18. Parts of a power supply circuit Does fan motor connector between CN31 short circuit Check Item Considerable principle cause Measures Item by symptoms Remote controller is defective Refer to 5 Troubleshooting for remote controller YES Microcomputer is defective i Replace main board supplied between CN31 0 0 defective Replace fan motor Be sure to disconnect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor 2 Power is not turned on though Indoor P C board is replaced Confirmation procedure Turn on power supply Does OPERATION indicator flash NO Is wired correctly to white and black lead wires of terminal block YES NO To item of Power supply is not turned on 71 3 Only the indoor motor fan does not operate lt Primary check gt 1 Is it possible to detect the power supply voltage 220 240 between and on the terminal block 2 Does the indoor fan motor operate in cooling operation In heating operation the indoor fan motor does not operate for approximately 10 minutes after it is turned to prevent a cold air from blowing in RAS 18 22 Series Turn off power supply once and turn it on again
19. SSS 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 ONE TOUCH Start the operaton 2 AUTOMATIC OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select A 2 Press MODE Select 3 COOLING HEATING FAN ONLY OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select Cool Heat xz or Fan only 2 Press MODE Set the desired temperature Cooling Min 17 C Heating Max 30 C Fan Only No temperature indication 3 Press Select AUTO LOW LOW Z4 MED 4 MED aan HIGH DRY OPERATION COOLING ONLY For dehumidification a moderate cooling performance is controlled automatically 1 Press MODE Select Dry 9 2 Press MODE Set the desired temperature AIR PURIFYING OPERATION 5 18 225 Only During air conditioner operation Press PURE to start and air ionizer operation The plasma air purifier an
20. the high voltage is not applied to electrode of the air purifier for approx 1 hour While the air purifier operates check that the fan speed AUTO is not displayed Because the power ON OFF is controlled on the program n this time check that the remote controller is in status which is shortened by time on the reactivation preventive timer and all display indicators go on for approx 3 seconds 3 Be sure not to touch the electric dust collector ionizer or ionized wire unit with the human body Push the switch gt Release the switch OFF N Does the indoor fan rotate 9 YES Does the PURE indicator Blue the FILTER indicator Orange go on YES Does the PURE indicator go off within 2 seconds after Is DC 5V to DC 10V applied between Brown Negative voltage it was ON and does the FILTER and 2 Brown GND indicator Orange go on of 42 of the main VES P C board YES Dry the electric dust collector and ionizer Are the electric dust collector and ionizer dried Electrode check NO x 9 YES Referring to the right figure check the high output voltage of the air filter unit NOTE Use an exclusive high voltage tester otherwise the tester may be broken YES Is output of the ionizer approx 4 0 kV to 4 8 kV 15 output of the collector approx 3 0 kV to 3 8 kV
21. 103 1 SAFETY PRECAUTIONS For general public use Power supply cord of outdoor unit shall be more than 1 5 mm HO7RN F or 60245IEC66 polychloroprene sheathed flexible cord Read this SAFETY PRECAUTIONS carefully before servicing The precautions described below include the important items regarding safety Observe them without fail After the servicing work perform a trial operation to check for any problem Turn off the main power supply switch or breaker before the unit maintenance CAUTION New Refrigerant Air Conditioner Installation 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 membrane and oils because the working pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 Accompanied with the adoption of the new refrigerant the refrigeration machine oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigeration machine oil does not enter into the new type refrigerant R410A air conditioner circuit To prevent mixing of refrigerant or refrigerating machine oil the sizes of connecting sections of charging port on main unit and installation tools are different from those used for the conventional refrigerant units Accordingly special tools are required for the new refrigerant R410A units
22. 12 2 Microcomputer Part name Procedure Remarks Common procedure 1 Turn the power supply off to stop the Replace terminal block operation of air conditioner microcomputer ass y and the 2 Remove the front panel P C board Remove the 2 fixing screws 3 Remove the electrical part base lt board layout gt RAS 18 22 Series ROS 101 C01 CN23 FUSE 04 R01 CN10 1 5045 COMPONENT SIDE E E 1 ou SWAT 01 C20 J04 94 12 3 Outdoor Unit Part name Common procedure Procedure 1 Detachment 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 8L 1 pc After removing screw remove the valve cover pulling it downward 3 Remove wiring cover ST1T 4 x 8L 2 pcs and then remove connecting cable 4 Remove the upper cabinet ST1T 4 x 8L 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 5 1 04 x 8L 5 pcs 3 Perform cabling of connecting cable and attach the wiring cover Place
23. 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 9 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor pulse Modulating valve and 4 way valve according to the operation signal sent from the indoor unit Operation ON Setup of remote controller Indoor unit control Control Requierment Indoor fan motor control Louver control Operation Hz Sending of operation command signal Outdoor unit control 4 way valve control Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control In cooling operation ON In heating operation OFF Pulse Modulating valve control 3 AUTO operation Selection of operation mode As shown in the following figure the operation starts by selecting automatically the status of room temperature Ta when starting AUTO operation 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode Ta Cooling operation Monitoring Fan Heating operation 1 Detects the room temperature Ta when the operation started 2 Selects an operation mode from Ta in the left figure 3 Fan operation continues until an operation mode is selected 4 When AUTO operation has start
24. Description 1 The difference between set temperature on remote controller Ts and room temperature Ta is calculated 2 According to the temperature difference the correction value of Hz signal which determines the compressor speed is set up 3 The rotating position and speed of the motor are detected by the electromotive force occurred on the motor winding with operation of the compressor 4 According to the difference resulted from comparison of the correction value of Hz signal with the present operation Hz the inverter output and the commuta tion timing are varied 5 Change the compressor motor speed by outputting power to the compressor The contents of control operation are same in cooling operation and heating operation 5 Current release This function prevents troubles on the electronic parts of the control compressor driving inverter This function also controls drive circuit of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value Outdoor unit inverter main Outdoor temp To circuit control current Setup of current release point Operating current High Setup value L Reduce compressor speed Current decrease Capacity control continues Outdoor temp 1 The input current of the outdoor unit is detected in the inverter section of the outdoor unit 2 According to the detected outdoor temperatur
25. When 20 seconds passed after start up position detect circuit error occurred Replace compressor Trouble on P M V 1 Repeat Start and Stop with interval of approx 10 to 40 minutes Code is not displayed during operation Supply gas Outdoor Compressor drive output All off error Compressor error lock missing etc Displayed when error is detected Others including compressor Return serial signal has Operation Flashes when been sent when continues trouble is detected operation started but it on return serial is not sent from halfway signal and normal 1 Compressor thermo status when signal 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 board If signal stops between indoor terminal block 2 and 3 replace indoor P C board Trouble on compressor Trouble on wiring of compressor Missed phase Compressor does not All off Displayed when rotate error is detected Current protective circuit does not operate when a specified time passed after compressor had been activated Discharge temp All off exceeded 117 C Displayed when Check dischage temp sensor error is detected TD Gas leakage Tr
26. 50 to 62 Nem 5 0 to 6 2 kgf m Liquid side 26 35 mm 14 to 18 Nem 1 4 to 1 8 kgf m Service port 14 to 18 Nem 1 4 to 1 8 kgf m Hexagonal wrench is required Q Fig 10 4 10 10 4 5 Wiring Connection 1 Remove the valve cover the electric parts cover and the cord clamp from the outdoor 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 fully into the terminal block and secure it tightly with screws 4 Insulate the unused cords conductors from water entering in the outdoor unit Locate them so that they do not touch any electrical or metal parts 5 Secure 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 Stripping length of connecting cable Terminal block Power cord Fig 10 4 11 N W _ 10 b 10 m 40 40 30 30 Earth line cable Power cord Earth line Fig 10 4 12 18SKVR E 22SKVR E 18SKV E 22SKV E 220 230 60Hz 220 240 50 Hz Model RAS Power source Maximum running current 12 0A TOS Installation fuse 16 A breaker or fuse rating All types can b
27. Cleaning operation After pressing the button for the first time press it for the second time without delay within 10 minutes 41 13 Self Cleaning function Operation display e Self Cleaning diagram ON OFF OFF FCU fan ON ON rpm is depend on presetting 450RPM OFF FCU louver OPEN OPEN 12 7 CLOSE Timer display ON or OFF depend on presetting of timer function ON ON or OFF depend on presetting of timer function Compressor depend on presetting per room temperature ON or OFF OFF CDU fan depend on presetting per room temperature ON or OFF OFF Cool mode or dry mode operation more than 10 mins Turn off by remote controller or timer off function Self Cleaning mode operate 30 mins gt Operation time Automatically turn off 14 Remote A or B selection Setting the remote controller To separate using of remote control for each indoor unit in case of 2 air conditioner 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 CHK e button on the Remote Control by the tip of the pencil 00 will be shown shown on the display 4 Press MODE during pushing B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Contr
28. Depth mm 290 Net weight kg 39 Compressor Motor output W 1100 Twin rotary type with DC inverter variablespeed control DA130A1F 27F UJ wje eu 5 D an motor output Ww 4B Air flow rate Cooling Heating 3 31 9 31 9 Piping Flare connection connection Indoor unit Liquid side 26 35 as side 212 70 Liquid side 26 35 as side 212 70 43 20 Maximum chargeless length 15 10 20 2 Maximum height difference Pd Pp 10 Refrigerant ame of refrigerant R410A R410A Weight kg 1 40 Wiring Power suppl connection Interconnection Usable temperature range Indoor Cooling Heating 21 32 28 21 32 28 utdoor Cooling Heating 10 46 15 24 10 46 15 24 Accessory Indoor unit Installation plate Wireless remote controller atteries emote controller holder uper Oxi Deo filter uper Sterilizer filter ing screw 6 4 251 6 4 251 Remote controller holder 2 3 1Lx16L 2 3 1Lx16L Plasma air purifier Installation manual wner s manual Outdoor unit Drain nipple Water proof rubber cap 2 Outdoor unit El 3 3 3 5 5 A m 8 75 75 54191 741 2 gt ER Q 0 D 2 The specifications may be subject to change without notice for purpose of improvement Et Unit model Indor
29. E RAS 22SKV E f RAS 22SKVR E 8 00 RAS 22SKVR E 8 00 7 00 RAS 18SKV E 6 00 RAS 18SKVR E 777 6 00 RAS 18SKV E RAS 18SKVR E Current A ul Current 4 00 3 00 3 00 2 00 2 00 1 00 1 00 0 00 0 10 20 30 40 50 60 70 80 90 100 110 120 0 00 0 10 20 30 40 50 60 70 80 90 100 110 120 Compressor Speed RPS Compressor Speed RPS 2 3 Capacity Variation Ratio According to Temperature lt Cooling gt lt Heating gt 105 120 100 95 90 RAS 18SKV E RAS 18SKV E RAS 18SKVR E S 85 RAS 18SKVR E 5 RAS 22SKV E b RAS 22SKV E RAS 22SKVR E 80 RAS 22SKVR E a a 75 8 70 8 Condition 8 Condition 65 Indoor DB27 C WB19 C Indoor DB20 C Indoor Air Flow Volume High Indoor Air Flow Volume High 60 t Pipe Length 7 5m Pipe Length 7 5m Capacity Ratio 10096 55 5 0kW RAS 18SKV E RAS 18SKVR E 6 0kW RAS 22SKVR E RAS 22SKVR E Capacity Ratio 100 5 8kW RAS 18SKV E RAS 18SKVR E 7 0kW RAS 22SKVR E RAS 22SKVR E 50 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 15 10 5 0 5 10 Outdoor Temperature C Outdoor Temperature C 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 refrig
30. For connecting pipes use new and clean piping materials with high pressure fittings made for R410A only so that water and or dust does not enter Moreover do not use the existing piping because there are some problems with pressure fittings and possible impurities in existing piping CAUTION TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY This appliance must be connected to the main power supply by a circuit breaker or a switch with a contact separation of at least 3 mm DANGER ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL IN STALL MAINTAIN THE AIR CONDITIONER INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE ELECTRIC SHOCK OR FIRE 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 DANGER 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 PC board by hand CORRECTLY CONNECT THE CONNECTING CABLE IF THE CONNECTING CABLE IS INCOR RECTLY CONNECTED ELECTRIC PARTS MAY BE DAMAGED CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE SERVICE AND INSTALLATION FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK DO INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE
31. 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 3 2 1 Never use copper pipes thinner than 0 8 mm even when it is available on the market Table 3 2 1 Thicknesses of annealed copper pipes Thickness mm 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 Sizes of flare pipe ends flare joint ends and fla
32. ON 4 Memory position Air conditioner of louver COOL air purifier operate 2 Air purifier ON Air purifying operation 38 Filter OFF Air conditioner operates _ Operation flow and applicable data Description 11 Air purifying control Detection of abnormality Air purifying operation PURE lamp ON Air purifier power Air purifier power estimates 1000H NO Error input is detected YES Filter lamp 1Hz ON Air purifier power OFF Error input was detected by 5 times or more Approx 10 minutes Air purifier power OFF passed from the error input was detected YES Filter lamp 1Hz ON Reset by RESET button Reset by RESET button or by the stop direction from the remote controller When the breaker is turned ON or RESET button is pushed while the FILTER indicator is turned on the air purifier is not turned on until the integrated operation time of the indoor fan exceeds 1 hour after operation start It is the safety measures considering an incom plete drain when electric dust collector has been cleaned with water 39 Purpose The air purifying control function is to alert the user to trouble in the ionizing or air purifying operation Description Trouble is determined to have occurred indicated by the FILTER indicator in the following four cases 1 When a count of 1000H has
33. OR EXPLOSION TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEAT REGISTORS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLATION IN ANOTHER PLACE BE VERY CARE FUL NOT TO ALLOW THE SPECIFIED REFRIGERANT R410A TO BECOME MIXED WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CIRCUIT IF AIROR ANY OTHER GAS 15 MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING AND POSSIBLE PER SONNEL INJURIES IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE WORK AND THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED SUCH AS BY FIRE GENERATION OF POISONOUS GAS MAY RESULT WARNING Never modify this unit by removing any of the safety guards or bypass any of the safety interlock switches 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 After the installation work confirm that refrigerant gas does not leak If refrigerant gas leaks into the room and flows near a fire source such as a cooking range noxious gas may generate The electrical work must be performed by a qualified electrician in accordance with the Installation Manual Make sure the air conditioner uses an exclusive ci
34. P M V YES If there is condensation at outlet 1 4 inch 6 35mm valve side the valve is clogged Replace valve Check the operating pressure from service port and add gas if pressure is low 76 Add gas 11 7 Troubleshooting 11 7 1 How to Check Whether the Air Purifier is Good or Not 18 22SKVR E only Turn off the power breaker once and turn on again after 10 seconds Does the OPERATION indicator flash NO YES Turn off the power breaker and remove CN41 Micro switch connector Short circuit between and 2 pin of CN41 at PC side and turn on the power breaker after 10 seconds 5 5 gt Is 12 applied Is DC12V applie between 1 Red DC12V and NO between 1 and 2 Brown GND of of the of CN42 of the main amp high voltage generator P C board YES YES NO Is there conduction of micro switch connector under OFF status of the micro switch Front panel opened YES Micro switch is stuck NO Is there conduction of micro switch connector under ON status of the micro switch Front panel closed YES NO Micro switch malfunction 1 Check operation while short circuiting CN41 of the main P C board 2 Perform air purifying operation by the remote controller when a signal is received If time on the reactivation preventive timer is not shortened
35. 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 Confirm that the compound pressure gauge reading is 101 kPa 76 cmHg 5 Close the low pressure valve handle of gauge manifold 6 Open fully the valve stem of the packed valves both sides of Gas and Liquid 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 Z Ps Handle Lo O OF Handle Hi Keep full closed Charge hose 8 For R410A only Charge hose For R410A only Connecting pipe H Vacuum pump adapter for counter Bow prevention For R410A only Packed valve at gas side Service port Valve core Setting pin Packed valve at liquid side Fig 10 4 9 CAUTION IMPORTANT POINTS FOR PIPING WORK Keep dust and moisture from entering the pipes Tighten connections carefully between pipes and unit Evacuate the air in the connecting pipes using a VACUUM PUMP Check for gas leaks at all connections Packed Valve handling precautions Open the valve stem all the way but do not try to open it beyond the stopper Securely tighten the valve stem cap with torque in the following table Gas side 012 7 mm
36. RAS 22SKV E RAS22SKVRE Cooling capacity 60 16 Cooling capacity range Heating capacity Heating capacity range Power supply 1Ph 50Hz 220 240V 1Ph 60Hz 220 230V Electric Operation mode characteristic unning current 0 38 0 35 A 38 ower consumption w 600 60 A W 20 79 Power factor Operation mode Cooling unning current 8 93 8 19 ower consumption 1945 Power factor O 9 9 tarting current A 9 56 8 77 3 01 Heating 9 18 8 42 2000 9 5 crt Un 3 41 Sound Pressure Indoor M L dB A 47 41 35 47 42 35 47 41 35 47 42 35 level dB A 52 c mac Sound power Indoor dB A 62 56 50 62 57 50 62 56 50 level 6 66 Indoor unit Unit model _ RAS22SKVE Dimension _ Height mm Width mm 1050 M L 62 57 50 ct ct I I M N 3 3 3 3 313 Depth mm i Ss Net weight an motor output Air flow rate Cooling Heating m3 min 18 0 18 3 17 7 18 0 kg W Outdoor unit Unit model RAS 22SAV E imensi Height mm 550 Width mm 780 Depth mm 290 Net weight kg 240 Compressor Motor output W 1100 an motor output W e eju g 3 5 v o 5 g 13 W 30 E g 40 Twin rotary type with DC inverter variablespeed control
37. Remarks Part name Fan motor Procedures 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 and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor band 5 Pull the fan motor outward 92 Remarks Set screw Two screws on motor cover Two screws on motor band Cross flow Procedures lt Caution at reassembling gt 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 Q 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 93 Remarks
38. SLEEP ON timer setup e QUIET OFF timer setup PRESET Hi POWER ONE TOUCH Indoor unit Signal receiving Indoor unit control Command signal generating function of Indoor unit control indoor unit operation 8 Indoor unit control Calculation function temperature calculation Indoor fan motor Activation compensation function of indoor fan Louver motor Operation command Cold draft preventive function Timer function Serial signal send receive Indoor heat exchanger release control 4 Outdoor unit Serial signal send receive Outdoor unit control inverter Frequency control of inverter output Waveform composite function Calculation function Outdoor fan motor AD conversion function 4 way valve Quick heating function Pulse Modulating valve Delay function of compressor reactivation P M V Current release function over current preventive function Defrost operation function 28 Operation flow and applicable data 1 Basic operation 2 Cooling Heating 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
39. 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 is depend on presetting and can change every speed after setting ECO operation Operation flow and applicable data etc Description 10 Temporary Pressing RESET button starts the temporary opera operation tion of AUTO operation When keeping RESET button pressed for 10 seconds or more the temporary COOL operation is performed Filter lamp ON NO Did you press RESET button for 3 seconds or more YES Did you press RESET button for 10 seconds or more Switch to AUTO RESTART control YES Press RESET button NO Temporary AUTO operation YES Temporary COOL Operation 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed 3 When keeping RESET button pressed for 10 seconds or more Pi sound is heard and the temporary COOL operation starts 4 If the filter lamp goes on press RESET button to go off the filter lamp and then press RESET button again 5 To stop the temporary operation press the button a
40. 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 3DV 3 shunt Discrete Vector control The control circuitry has uninsulated construction Compressor 1 IGBT x 6 4 s _ R E Fan motor Amplifier FET x6 1 Amplifier Shared potential Fig 11 1 64 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 place 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
41. Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting Hi POWER COMFORT SLEEP QUIET SLEEP 1 3 5 9H OFF TIMER PURE Air purifier Air purifier unit Micro Switch 8 2 Outdoor Unit Inverter Assembly PUN 934095 ONIN IQON 1088 4 2 oq JeAug 1 LI lt lt Josues 29114 jueuno JoopinO 2 UORn294107 10108 J MOd Josu s dw yun JOOPU 1 Josues Jo3juoo eDBueuosiq Site anon 9 uano uonounj jesus dua JayeAu Joopino eem uej JoopinO 9 043009 129jep 189 04ju09 eseejaJ jueJuno uonounj siseuju As Josues dw psjep nA Now 9AI9298J pues yun 400pu LINN 8 O d 600822011
42. 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 21 7 2 lt gt Tempeature Model Standard Heat exchanger Indoor Outdoor RAS pressure pipe temp fan mode fan mode revolution indoor Outdoor P MPa Heating Tempeature Model name Standard Heat exchanger Indoor Outdoor Compressor condition C RAS pressure pipe temp fan mode fan mode revolution Indoor Outdoor 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 22 8 CONTROL BLOCK DIAGRAM 8 1 Indoor Unit RAS 18SKV E RAS 22SKV E Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver and Indication Clock Frequency Oscillator Circuit Indoor Unit Control Unit Functions Cold draft preventing Function 3 minute Delay at Restart for Compressor Fan Motor Starting Control Processing Temperature Processing Louver Motor Drive Control Indoor Fan Motor Control Timer Serial Signal Communication Power Supply Circui Converter D C circuit Noise Filter From Outdoor Unit 220 240V 50Hz 220 230V 60Hz REMOTE CON
43. alloy mainly composed brazing filler at a hot spring resort etc and of silver and copper It is used to join iron copper coat the surface with a paint or copper alloy and is relatively expensive though 2 When performing brazing again at time of it excels in solderability servicing use the same type of brazing filler 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 5 2 Flux 3 Low temperature brazing filler 1 Reason why flux is necessary Low temperature brazing filler is generally called By removing the oxide film and any foreign solder and is an alloy of tin and lead Since it is matter on the metal surface it assists the flow weak in adhesive strength do not use it for of brazing filler refrigerant pipes In the brazing process it prevents the metal surface from being oxidized By reducing the brazing filler s surface tension the brazing filler adheres better to the treated metal 13 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 It is easy to remove slag after brazing The corrosive action to the treated metal and brazing filler is minimum It excels in coating performance and is harm less to the human body As the flux works in a complicated manner as described above it is nec
44. cabinet left 1 Perform step 1 in 2 2 Remove the fixing screw ST1T 4 x 8L 1 pcs used to secure the side cabinet left onto the heat exchanger 3 Remove the fixing screw ST1T 4 x 8L 2 pc used for securing the side cabinet to the bottom plate and heat exchanger Detail A Detail B Remarks The back body section is hooked onto the bottom plate here Detail C Fan motor 1 Perform work of item 1 of D and Q 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened by turning clock wise To tighten the flange nut turn counterclockwise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 2 pc holding by hands so that the fan motor does not fall Precautions when assembling the fan motor Tighten the flange nut using a tightening torque of 4 9 Nem 299 Flange nut Procedure Remarks Compressor 1 Perform work of item 1 of and 2 Extract refrigerant gas 3 Remove the partition board ST1TO4 x 8L 3 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 Take care to keep the 4 way valve away from naked flames Otherwise it may malfunction 7 Remove the fixing screw of the b
45. high pressure and may cause a rupture or personal injury Indoor unit Outdoor unit Refrigerant cylinder ia siphon Open close valve for charging Electronic balance for charging Service port Fig 3 4 1 Configuration of refrigerant charging 12 1 Be sure to make setting so that liquid can 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 R410A 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 Cylinder without siphon Gauge manifold Gauge manifold OUTDOOR unit OUTDOOR unit Japul Ao Refrigerant jueJeBujes cylinder Electronic balance Siphon 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 Fig 3 4 2 3 5 Brazing of Pipes us 1 Phosphor bronze brazing filler tends to react 3 5 1 Materials for Brazing with sulfur and produce a fragile compound water solution which may cause a gas 1 Silver brazing filler leakage Therefore use any other type of Silver brazing filler is an
46. holder onto the heat exchanger Detail Detail 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 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 102 13 1 Indoor Unit Location 43721371 43722312 43770313 43720016 43749010 43783003 43782008 43769499 43719333 43749043 43739021 43779313 43739020 43739023 43739022 43709040 13 EXPLODED VIEWS AND PARTS LIST Description MOTOR FAN BEARING ASSY MOLD HOSE DRAIN FAN ASSY CROSS FLOW PIPE SHIELD HOLDER REMOTE CONTROL PLATE INSTALLATION UNIT ELECTRIC PURIFIER 18 22SKVR E HOLDER SENSOR HOLDER PIPE BASE BEARING CAP DRAIN BAND MOTOR LEFT BAND MOTOR RIGHT DOWN BAND MOTOR RIGHT UP LOUVER HORIZONTAL Location 103 43703014 43703015 43744030 43744031 43709041 43709042 43780019 43700052 43700055 43780020 43762031 43769640 43769615 224 223 Electric Parts 65 y Descript
47. housing assembly CN21 is defective Push START STOP button once to start the unit Shorten the restart delay timer Set the operation mode to COOL Set the fan speed level to AUTO Set the preset temperature much lower than the room temperature The unit com pressor operates continuously in the above condition Check whether or not the com pressor operates Check whether or not the OP ERATION indicator flashes The temperature of the indoor heat exchanger is extremely low The connection of the heat ex changer sensor is loose The connector is disconnected CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main board is defective If the above condition No 5 still continues start the unit in the following condition Set the operation mode to HEAT Set the preset temperature much higher than room tem perature Check whether or not the com pressor operates Check whether or not the OP ERATION indicator flashes The temperature of the indoor heat exchanger is extremely high The connection of the heat ex changer sensor short circuited CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main board is defective Connect the motor connector to the motor and turn on the power supply Start the unit the following co
48. indoor unit facing out 2 To mount the installation plate on a concrete wall NOTE yd alis anchor bolt holes as Wire type Mat More than 1 5 mm HO7RN F or 60245lEC66 3 Install the installation plate horizontally and level CAUTION This appliance can be connected to a main circuit breaker in either of the following two ways 1 Connection to fixed wiring A switch or circuit breaker which discon nects all poles and has a contact separa CAUTION When installing the installation plate with mount ing screw do not use the anchor bolt hole Otherwise the unit may fall down and result in personal injury and property damage tion of at least 3 mm must be incorporated in the fixed wiring An approved circuit d breaker or switch must be used Anchor bolt Connection with power supply plug Attach power supply plug with power T and plug it into wall outlet An approved P t x Q 15088 pur power supply cord and plug must be used d NOTE Perform wiring work being sure the wire length is Fig 10 3 4 long enough 5 mm dia hole 10 3 4 Wiring Connection How to connect the connecting cable Mounting screw 04 x 25L Wiring the connecting cable can be carried out without removing the front panel E P 1 Remove the air inlet grille Open the air inlet grille upward and pull it toward you 2 Remove the terminal
49. 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 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 Press 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 standby Not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds 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 press RESET button once more or use the remote controller to turn it off When the unit is in operation Operation Motions Press RESET button for more than The unit is in opera
50. 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 89 Remarks Electric part box cover Earth Screw sensor Fan motor connector Louver motor connector Fixing screw Fixing screw LED assembly Procedures Remarks 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 the item 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 body 90 Bearing Procedures 1 Follow to the procedure in the item 2 Remove the two screws used to secure the bearing base 3 Remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate itin the main body 291 screws Bearing
51. of each winding by using the tester Under normal temp 25 C Position Resistance value 250 200 Indoor fan motor 11 9 4 Outdoor Unit Part name Compressor Model DA130A1F 27F 18SAV E Model DA150A1F 20F 22SAV E Refer to 11 5 1 3 4 Checking procedure Measure the value of each winding by using the tester Resistance value DA130A1F 27F DA150A1F 20F Position Red White White Black Black Red 0 92 to 1 020 0 88 to 0 98Q White Black Under 20 C Outdoor fan motor Model ICF 140 43 4R Measure the resistance value of winding by using the tester Red Position Resistance value Red White 20 to 220 White Black 20 to 220 Black Red 20 to 220 4 way valve coil Model STF Measure the resistance value of winding by using the tester Resistance value Pulse motor valve coil Model CAM MD12TF 1435 1440 Measure the resistance value of winding by using the tester Under 20 C Position Resistance value IE 9 Red White 42 to 50Q Red Orange 42 to 500 42 500 42 500 Under 20 C Brown Yellow Brown Blue Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS outdoor heat exchanger temperature sensor TE Disconnect the connector and measure resistance value with the tester Norm
52. on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since condensation can result in machine performance trouble be 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 Installation 1 Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hooks 2 Swing the indoor unit to right and left to confirm that it is firmly hooked 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 Hook here D Installation plate Push unhook Fig 10 3 17 For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing the bottom up at the specified places Push Push Fig 10 3 18 10 3 7 Drainage 1 Run the drain hose at a downward sloped angle NOTE Hole should be made at a slight downward slant on the outdoor side Do not rise the drain hose Do not form the drain hose into the waved shape Px LEE Do not put the Do not put the drain drain hose end hose end in the into water drainage ditch Fig 10 3 19 2 Put water in the dra
53. panel opened NO Is there conduction of micro switch connector under ON status of the micro switch Front panel closed YES Micro switch is stuck Replace micro switch we Micro switch malfunction Conduction check of micro switch Push the switch ON gt ON 1 Check operation while short circuiting CN41 of the main board Release the switch 2 Perform air purifying operation by the remote controller n this time check that the remote controller is in status which is shortened by time on the reactivation preventive timer and all display indicators go on for approx 3 seconds when a signal is received If time on the reactivation preventive timer is not shortened the high voltage is not applied to electrode of the air purifier for approx 1 hour While the air purifier operates check that the fan speed AUTO is not displayed Because the power ON OFF is controlled on the program 3 Be sure not to touch the electrode with the human body Does the indoor fan rotate NO To item Only indoor fan does not operate YES Does the PURE indicator Blue NO the FILTER indicator Orange go on Replace the main P C board YES Does the PURE indicator go off within 2 seconds after YES To item How to check whether it was ON and does the FILTER the air purifier is good or not indicator Orange go on How to check output of minus i
54. 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 Temp measurement by outdoor heat exchanger and control for 4 way valve and outdoor 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 mode 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 tempera
55. 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 All the attaching works have completed Check that all the hooking claws are fixed to the specified positions 101 Minus screwdriver Hooking claw t Procedure Remarks TE sensor outdoor heat exchanging temperature sensor e 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 i V Detail C for RAS 18SAV E Detail C for RAS 228AV E VW ED gt TS sensor Suction pipe temperature sensor e Attachment With its leads pointing downward point the sensor in the direction of the packed valve and install it onto the straight pipe part of the suction pipe A 1 TD sensor Discharge pipe temperature sensor e 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 e Attachment Insert the outdoor air temperature sensor into the holder and install the
56. wall surface the indoor unit may be unstable When bending the connecting pipe make sure to use a spring bender to avoid crushing the pipe Refer to the table below for the bending radius of each connection pipe Outer diameter Bending radius 6 35 mm 30 mm 12 7 mm 15 88 mm 50 mm To connect the pipe after installation of the unit figure To the front flare NS Gas side 1 Liquid R30 or less 6 35 R50 or less 012 7 015 88 Use polishing polyethylene or the like for bending pipe Outward form of indoor unit oH LLL LLIKLLA LILL LLL LLL LLL LLL LLL Use screwdriver handle etc Fig 10 3 15 NOTE If the pipe is incorrectly bent the indoor unit may be unstable on the wall After passing the connecting pipe through the pipe hole connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them 57 CAUTION Bind the auxiliary pipes two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape Indoor unit Auxiliary pipes Connecting cable Installation plate Fig 10 3 16 Carefully arrange the pipes so that none of the pipes stick out of the rear plate of the indoor unit Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound
57. DA150A1F 20F DA150A1F 20F 5 D B Air flow rate Cooling Heating m3 min 37 2 33 7 Flare connection 26 35 2112 70 26 35 112 70 3 Indoor unit 0 5 0 Liquid side as side Liquid side as side Outdoor unit 3 Oo 3 O 5 5 5 2 Maximum chargeless length 1 1 _____ 20 n Maximum height difference 10 Refrigerant Name of refrigerant R410A R410A Weight kg Wiring ower supply 3Wires includes earth Outdoor connection nterconnection 4Wires includes earth Usable temperature range Indoor Cooling Heating 21 32 28 21 32 28 utdoor Cooling Heating 10 46 15 24 10 46 15 24 Accessory Indoor unit Installation plate Wireless remote controller atteries emote controller holder uper Oxi Deo filter Super Sterilizer filter ing screw 6 4x25L 6 4x25L 2 3 1Lx16L 2 3 1Lx16L Plasma air purifier Installation manual wner s manual Outdoor unit ni proof rubber cap m of e OJO o 5 et 3 uD ola EE 23 215 zo 5 I2 5 5 2 22 ws a 2o Qa The specifications be subject to change without notice for purpose of improvement 2 2 Operation Characteristic Curve lt Cooling gt lt Heating gt 10 00 iis 9 00 RAS 225KV
58. For smooth operation of the compressor the compres sor motor speed is restricted to Max 41 rps for 2 min utes and Max 91 rps for 2 minutes to 3 minutes respec tively after the operation has started In AUTO mode the operation mode is changed After selecting Cool or Heat mode select an operation mode again if the compressor keeps stop status for 15 minutes In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set temperature The compressor motor speed may decrease by high temp release control Release protective operation by temp up of the indoor heat exchanger or current release control 66 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 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 OPERATION Green Indoor indication Flashing display 1 Hz lamp flashes Power failu
59. Gy O L i QM 10 mm 50 mm Fig 10 3 7 NOTE WIRE TYPE more than 1 0mm H07 RN F or 60245 IEC 66 10 3 5 Piping and Drain Hose Installation Piping and drain hose forming Since condensation results in machine trouble make sure to insulate both the connecting pipes separately Use polyethylene foam as insulating material Rear right Rear left gt EO Bottom left m m E 55 Left mp mp lm Bottom right ae 9 Right mp mumm Fig 10 3 8 1 Die cutting front panel slit Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or side of thefront panel for the bottom left or right connection with a pair of nippers 2 Changing drain hose For left connection left bottom connection and rear left connection s piping it is necessary to relocate the drain hose and drain cap How to remove the drain cap Clip drain cap with needle nose pliers and pull out H H H H H Fig 10 3 9 How to remove the drain hose The drain hose is secured in place by a screw Remove the screw securing the drain hose then pull out the drain hose Heat insulator ES 3 D
60. How to Use Remote Controller in Service Mode 7 nm LILI PRESET FAN COMFORT QUIET PURE SLEEP SWING FIX Hi POWER ECO 0000 5 d Alphanumeric characters are used for the check codes 5 is 5 is 6 A is A h d is D T 66617 Press CHECK button with a tip of pencil to set the remote controller to the service mode Til is indicated on the display of the remote controller Press OFFA 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 I Jt 8 IE 3 The TIMER indicator of the indoor unit flashes continuously b times per 1 sec Check the unit with all 52 check codes 27 to 33 as shown in Table 11 4 1 Press ONY or OFFY 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 b times per 1 sec Press CLR button After service finish for clear service code in memory 7F is indicated on the display of the remote control Press START STOP button to release the service mode The display of the remote controller returns to a
61. In order to increase pressure resisting strength hose materials 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 Electronic balance for refrigerant charging 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 Torque wrench nominal diam 1 2 5 8 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 Flare tool clutch type By increasing the clamp bar s receiving hole strength of spring in the tool has been improved Gauge for projection adjustment Used when flare is made by using conventional flare tool Vacuum pump adapter 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 Gas leakage detector 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
62. PC BOAD ASSY ACID Fuse E ATIO FUSE HOLDER NCIO8 TERMINAL 6P Location Location No Description No 43050422 SERSOR TE 43160566 TERMINAL BLOCK 6P 20A 43050423 SENSOR TS 4306V029 PC BOARD ASSY MCC5009 18SAV E 43050427 SENSOR TO 4306V030 PC BOARD ASSY MCC5009 22SAV E 43050430 SENSOR TD 43160571 FUSE HOLDER 15 250V 43062228 BASE PC BOARD 43160590 FUSE 107 TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND TOSHIBA CARRIER CORPORATION CHOME 12 32 KONAN MINATOKU TOKYO 108 0075 JAPAN Copyright 1999 to 2007 TOSHIBA CARRIER CORPORATION ALL Rights Reserved
63. SAV E DA150A1F 20F COIL FOR P M V CAM MD12TF 10 DC12V Coil for 4 way valve AC220 240V 0 19 7 REFRIGERANT CYCLE DIAGRAM 7 1 Refrigerant Cycle Diagram RAS 18SKV E RAS 18SAV E RAS 18SKVR E RAS 18SAV E Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Outer dia 12 7mm Thickness 0 8mm SS M HX 4 way valve STF 0108Z Accumulater tank 1 1 1 1 1 1 t NOTE INDOOR UNIT Temp measurement Indoor heat exchanger sele e 5 20 Min 2m Deoxidized copper pipe g 8 gt Chargeless 15m Outer dia 6 35mm gS Charge 20g m ap Thickness 0 8mm 5 0 16to20m IE Sectional shape lt 5 ap of heat insulator Ee Compressor DA130A1F 27F TS Outdoor heat Split capillary exchanger 2 1 2 x 806 Strainer Pulse Modulating valve at liquid side CAM B22Y GTF 3 6 X DISTRIBUTOR Propeller fan Refrigerant amount 140kg OUTDOOR UNIT NOTE m Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating The maximum pipe length of this air conditioner is 20 m When the pipe length exceeds 15m the a
64. SIDE REGHT CABINET SIDE LEFT GUARD FAN GUARD FIN BASE ASSY ROHS COVER VALVE PACKED COVER WIRING ASSY COMPRESSOR DA150A1F 20F 22SAV E COMPRESSOR DA130A1F 27F 18SAV E CONDENSER ASSY ROHS 22SAV E CONDENSER ASSY ROHS 18SAV E VALVE PACKED 6 35 VALVE PACKED 12 7 BONNET 1 4 IN BONNET 1 2 IN NUT FLARE 6 35 NUT FLARE 12 7 CAP VALVE PACKED 6 35 CAP VALVE PACKED 12 7 CAP CHARGE PORT TUBE CAPILLARY ID 1 2 18SAV E TUBE CAPILLARY ID 2 0X2000L 22SAV E Location No 106 43046445 43046444 43146722 37546848 43046450 43058270 4302 068 43020329 43047669 43039394 43004242 4301V080 43032441 43089160 4301P703 4301P729 43042485 43063321 43063322 43063325 43063339 Description VALVE 4WAY STF 0213Z 22SAV E VALVE 4WAY STF 0108Z 18SAV E COIL SOLENOID STF 01A J502E1 VALVE PLUSE MODULATING CAM B22YGTF 3 COIL PMV REACTOR MOTOR ICF 140 43 4R FAN PROPELLER PJ 421 NUT FLANGE BASE MOTOR PLATE PARTITION PLATE FIX VALVE PACKED NIPPLE DRAIN CAP WATERPROOF MARK TOSHIBA MARK INVERTER RUBBER CUSHION HOLDER SENSOR TD HOLDER SENSOR TS HOLDER SENSOR TE HOLDER SENSOR TO 1 3 3 Board Layout Outdoor BASE PC BOARD 0709 SENSOR 0 46 X AN SENSOR TE 0702 SENSOR 15 7037 SENSOR 708 PC BOAD ASSY
65. TOSHIBA FILE NO AOT 008 SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Indoor Unit High Wall Heat Pump gt RAS 18SKV E RAS 22SKV E RAS 18SKVR E RAS 22SKVR E Outdoor Unit Heat Pump Type RAS 18SAV E RAS 22SAV E HFC Printed in Japan Feb 2008 10 11 12 13 5 SAFETY PRECAUTIONS lt lt 55 E VR Ei ra ane 2 SPECIFICATIONS rd daa dd cuv Dean cir ru 4 REFRIGERANT 50 7 CONSTRUCTION VIEWS aD uo 15 WIRING DIAGRAM Eee 18 SPECIFICATIONS OF ELECTRICAL PARTS 19 REFRIGERANT CYCLE DIAGRAM 20 CONTROL BLOCK DIAGRAM 23 OPERATION 5 runc u 26 INSTALLATION PROCEDURE 51 HOW TO DIAGNOSE THE TROUBLE 64 HOW TO REPLACE THE MAIN PARTS 86 EXPLODED VIEWS AND PARTS LIST
66. TROLLER Clean Function Serial Signal Transmitter Receiver Serial Signal Communication Operation Command and Information Remote Controller Operation START STOP Operation Mode Selection AUTO COOL DRY HEAT FAN Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting ECO Hi POWER COMFORT SLEEP QUIET SLEEP 1 3 5 9 OFF TIMER Louver Motor Indoor Fan Motor Infrared Rays 36 7kHz RAS 18SKVR E RAS 22SKVR E Indoor Unit Control Unit Functions Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver and Indication Processing Initializing Circuit Clock Frequency Oscillator Circuit Timer 3 minute Delay at Restart for Compressor Fan Motor Starting Control Temperature Processing Cold draft preventing Function Serial Signal Communication Louver Motor Drive Control Indoor Fan Motor Control Louver Motor Indoor Fan Motor Clean Function Power Supply Circuit Converter D C circuit a From Outdoor Unit 220 240V 50Hz 220 230V 60Hz REMOTE CONTROLLER N Serial Signal Transmitter Receiver Serial Signal Communication Operation Command and Information Remote Controller Operation START STOP Operation Mode Selection AUTO COOL DRY HEAT FAN
67. Turn on the power breaker and operate the air condi tioner in COOL mode by time shortening Measure terminal voltage of the electrolytic capacity 500uF 400V x 760uF 400V After operation turn off the power breaker after 2 minutes 20 seconds passed and discharge the electro lytic capacitor by soldering iron Check voltage between motor phases Is not winding between D Q G or O opened or short circuited 15 not frame grounded with or 79 If fuse was blown be sure to check the electrolytic capacitor and diode block 01 Connect discharge resistance approx 100Q 40W or soldering iron plug between terminals of the electro lytic capacitor 500uF or 760 of C14 with printed CAUTION HIGH VOLTAGE on P C board Discharging position Discharging period 10 seconds or more Plug of soldering A iron if 500uF or 760uF DC280 to 380V Remove CN300 while pushing the part indicated by an arrow because CN300 is a connector with lock Resistance between phases should be approx 55 to 77Q Should be 10MQ or more Diagnosis Process flowchart Contents Summary Check winding resistance between phases of compres sor and resistance between outdoor frames by using a tester board assembly Is not short circuited OK if 0 510 gt 0 570 between windings Check by a digi
68. ages in AUTO mode respec Medium tively Table 1 M Medium L Low L Low L Low COOL ON UL Ultra Low SUL Super Ultra Low Fan speed setup MANUAL The fan speed broadly varies due to position of the louver etc The described value indicates one AUTO Indication Fan speed under condition of inclining W6 downward blowing 1 When setting the fan speed to L L M 2 L M M or on the remote W9 controller the operation is performed with the constant H 2 speed shown in Fig 1 WC 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 M s 3 Fan speed M x 3 4 L 4 speed L x 2 4 5 speed x 1 4 L Linear approximation from M and L Table 1 Indoor fan air flow rate WB 3 4 5 L W6 RAS 18SKV E RAS 18SKVR E RAS 22SKV E RAS 22SKVR E Fan speed Air flow Fan speed Air flow Fan speed Air flow Fan speed Air flow rate rpm m3 h rpm m3 h rpm m3 h rpm 30 Operation flow and applicable data Description 2 Indoor fan lt heating operation gt 1 When setting the f
69. al temperature TD kQ 100 TO TS TE kQ 20 7 12 6 10 0 7 9 4 5 83 11 9 5 Checking Method for Each Part Part name Electrolytic capacitor For boost smoothing Checking procedure 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 0 C12 C13 C14 Case that product is good D D Pointer swings once and returns slowly When performing test once again under another MCC 5009 polarity the pointer should return Soldered surface o Heat sink IGBT side C12 C13 C14 18SAV E 500uF 400V 22SAV E 7604 400 Diode block 1 Turn OFF the power supply breaker 2 Completely discharge the four electrolytic capacitors 3 Remove the diode block from the PCB 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 Tester rod Resistance value good product 10 to 20 Q when the multimeter probe is reversed 84 11 10 How to Simply Judge Whether Outdoor Fan Motor is Good Bad 1 Symptom Outdoor fan motor does not rotate Outdoor fan motor stops with
70. an speed to L motor control L M M or H on the remote controller the operation is per formed with the constant speed shown in Fig 3 and Table 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 5 according to the set Fan speed temperature and room temperature w8 3 Min air flow rate is controlled by temperature of the indoor heat L 2 exchanger Tc as shown in Fig 4 WA 4 Cold draft prevention the fan M H 2 speed is controlled by temperature WE of the indoor heat exchanger Tc as shown in Fig 6 5 In order to prevent Cold draft when Min air flow rate control compressor step during heating operation Then louver will move to upper position and fan speed will reduce or off Limited to Min WD tap No limit Fan speed TC 42 10 x WD W8 W8 In up operation 1 in down operation 0 Cold draft preventive control Basic fan control AUTO 46 45 Line approximate 33 H and SUL with Tc 32 4 4 Stop Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting ree RES No limitation while d MANUAL mode is in stabilit p ES o limitation while Tan spee IS Stability e an speed M DESEE A When gt 24 A is 24 and when lt 24 A is
71. and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hose s port size 53 10 3 Indoor Unit 10 3 1 Installation Place A place which provides enough spaces around the indoor unit as shown in the diagram A place where there no obstacle near the air inlet and outlet A place which allows easy installation of the piping to the outdoor unit A place which allows the front panel to be opened The indoor unit shall be installed so that the top of the indoor unit is positioned at least 2m in height Also avoid putting anything on the top of the indoor unit CAUTION Direct sunlight on the indoor unit wireless receiver should be avoided The microprocessor in the indoor unit should not be too close to r f sources For details see the owner s manual Remote controller Should be placed where there are no obstacles such as curtains that may block the signal Do not install the remote controller in a place exposed to direct sunlight or close to a heating Source such as a stove Keep the remote controller at least 1 m away from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote controller should be determined as shown below Side view view 5 A Indoor unit 577 o Wun at R
72. ant 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 A place where the drain water does not cause any problems Precautions for adding refrigerant Use a scale having a precision with at least 10 g per index line when adding the refrigerant Do not use a bathroom scale or similar instrument Use liquid refrigerant when refilling the refrigerant Since the refrigerant is in liquid form it can fill quickly Therefore perform the filling operation carefully and insert the refrigerant gradually CAUTION Install the outdoor unit without anything blocking the discharging air When the outdoor unit is installed in a place always exposed to strong winds 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 install 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 A saline place such as the coast A place full of sulfide gas A place where high frequency waves are likely to be generated such as from audio equipment welders and medical equip Fig 10 4 1 59 10 4 2 Draining the Water Holes are provided on the base plate of the outdoor unit to ensure that the defros
73. arge temp error disconnection of TS TE gas leakage sensors Check code 02 1C Check code 03 1E lt Valve drive check Is coil of the pulse motor valve NO correctly set YES Set it correctly lt 15 connecter of connected to inverter YES Set it correctly lt Is positioning sound of valve sound hitting to stopper heard from valve when the air conditioner starts the operation after turning off power of the air conditioner once Replace coil valve i5 temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE outdoor suction temp sensor TS and outdoor sensor TO YES Set it correctly Gas amount check valve clogging check Remove TC sensor connector from the board in indoor unit Remove connector from the P C board Operate the air conditioner in COOL mode by TEMP button Beep sound is heard if Keeping pushed 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
74. been reached on the timer 2 When the panel switch has been set to OFF by the opening of the air inlet grile etc 3 When an abnormal discharge caused by a symptom such as the build up of dirt has been detected while the air purifier is ON 4 When the electric dust collector has not been installed correctly Trouble case 2 or 3 is deemed to have occurred when the action concerned continues for more than one second Operation The sequence that FILTER indicator is turned on are described in the left flowchart 1 When 1000H timer counts up the FILTER indicator keeps lighting even if the operation is stopped by the remote controller The timer is stored in memory of the microcomputer and the operation time is cleared by filter RESET button on the indoor unit FILTER indicator goes off 2 If the air purifying error input was detected by 5 times or under turn on the purifier again approx 10 minutes after and judge it again If the air purifying error input was detected by 5 times or more deter mine the error and turn on the Filter lamp Operation flow and applicable data 12 Pulse This function controls throttle amount of the Modulating refrigerant in the refrigerating cycle valve P M V according to operating status of the air conditioner control this function also controls the open degree of valve with an expansion valve with pulse Modulation Starting up Move to initial pos
75. 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 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 Rubber plug Fig 3 5 1 Prevention of oxidation during brazing 44 4 CONSTRUCTION VIEWS 4 1 Indoor Unit
76. 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 lt Discharging method gt 1 Remove the inverter cover plating by opening four mounting claws 2 As shown below connect the discharge resistance approx 100040W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 18SAV E 500uF 400V 22SAV E 7604 400 on P C board and then perform discharging Discharging position Discharging period 10 seconds or more Plug of soldering iron Inverter cover P C board Soldered surface GUN VASA lt 11 1 First Confirmation 11 1 1 Confirmation of Power Supply 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 i
77. cover and cord clamp Fig 103 5 3 Insert the connecting cable or as according to local regulations codes into the pipe hole on the wall CAUTION 4 Pull the connecting cable through the cable slot Failure to securely install the unit may result in on the rear panel so that it protrudes about personal injury and or property damage if the 15 cm out of the front unit falls 5 Insert the connecting cable fully into the terminal block and secure it tightly with screws In case of block brick concrete or similar type 6 Tightening torque 1 2 Nem 0 12 kgf m walls d amm the wall 7 Secure the connecting cable with the cord clamp Insert clip anchors for the mounting screws 8 Attach the terminal cover rear plate bushing and NOTE air inlet grille on the indoor unit Install the installation plate using mounting screws between 4 to 6 being sure to secure all four corners 55 CAUTION Be sure to refer to the wiring system diagram labeled inside the front panel Check local electrical regulations for any specific wiring instructions or limitations Cord clamp 5 crew Terminal block Terminal cover Connecting cable Connecting cable Qe 3 pese 75 en 110 mm Earth line 10 mm 80 Stripping length of the connecting cable Fig 10 3 6 110 mm Earth line 10 mm On
78. d air ionizer can be activated or deactivated during air conditioner is stopped and the air ionizer starts in conjunction with plasma air purifier operation Note The FILTER indicator orange turns on after PURE operation is performed for about 1000 hours Hi POWER OPERATION To automatically control room temperature and airflow for faster cooling or heating operation except in DRY and FAN ONLY mode Press Start and stop the operation ECO OPERATION To automatically control room to save energy except in DRY and FAN ONLY mode Press ECO Start and stop the operation Note Cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease TEMPORARY OPERATION In case of the misplaced 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 Setting the OFF Timer 1 Press 9 Set the desired ON timer Press Set the desired OFF timer 2 Press Set the timer Press Set the timer 3 Press Cancel the timer Press Everyday timer allows the user to set both the ON amp OFF timers and will be activated on a daily basis Setting Everyday Time
79. dditional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g 20 RAS 22SKV E RAS 22SAV E RAS 22SKVR E RAS 22SAV E INDOOR UNIT Indoor heat T1 Temp measurement TA Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Thick dia 6 35mm inc Thickness 0 8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia 12 7mm Thickness 0 8mm 4 Muffler 4 way valve 5 02132 Muffler TD Compressor DA150A1F 20F Outdoor heat exchanger Accumulater tank TO Split capillary 4 Dia 2 x 66 C lt 7 DISTRIBUTOR Propeller fan 1 1 1 1 1 1 t OUTDOOR UNIT NOTE Strainer Pulse Modulating valve at liquid side CAM B22YGTF 3 25 2 20 23 Chargeless 15 5 Charge 20g m 55 16 to 20m lt 5 2 lt Refrigerant amount 1 Wi Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating The maximum pipe length of this air conditioner is 15 m
80. e the specified value of the current is selected 3 Whether the current value exceeds the specified value or not is judged 4 If the current value exceeds the specified value this function reduces the compressor speed and controls speed up to the closest one commanded from the indoor unit within the range which does not exceed the specified value Cooling current release value Heating current release value 18SAV E 22SAV E 18SAV E 22SAV E 7 05A 9 30A 45 40 16 6 07 44 7 12 33 KN 8 47A 10 50A 8 77A 10 88A Hel see 6 Release protective control by tempera ture of indoor heat exchanger Indoor heat exchanger temperature Indoor heat exchanger temperature Operation flow and applicable data etc In cooling dry operation gt Prevent freezing control for indoor heat exchanger In cooling dry operation the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Usual cooling capacity control When the value is in Q zone the compressor speed is kept Reduction of compressor speed Description 1 When temperature of the indoor heat exchanger drops below 5 C the compressor speed is reduced P zone 2 When temperature of the indoor heat exchanger rises in the range from 6 C to under 7 C the compressor speed is kept Q zone
81. e refrigerant and check no refrigerant remains in the equipment Na 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 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 If 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
82. e tool for R410A or conven tional flare tool Flare processing dimensions differ according to the type of flare tool When using a con ventional flare tool be sure to secure dimen sion A by using a gauge for size adjustment Nominal diameter Table 3 2 3 Dimensions related to flare processing for R410A Outer diameter mm Thickness mm A mm Fig 3 2 1 Flare processing dimensions Flare tool for R410A Conventional flare tool clutch type Clutch type 1 0 to 1 5 Wing nut type 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 Nominal diameter 1 0 to 1 5 Table 3 2 4 Dimensions related to flare processing for R22 Outer diameter mm Thickness mm A mm 2 0 to 2 5 Flare tool for R22 Conventional flare tool clutch type Clutch type 0 5 to 1 0 Wing nut type 1 0 to 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 5 to 2 0 Nominal diameter 0 5 to 1 0 Table 3 2 5 Flare and flare nut dimensions for R410A Outer diameter mm Thickness mm B Dimension mm 1 5 to 2 0 Flare nut width mm Table 3 2 6 Flare and flare nut dimensions for R22 Nominal Outer diameter diameter mm Thickness Dimension mm Flare nut width mm C mm do wl 0 45 Fig 3 2 2 Relations be
83. e used Power cord HO7RN F or 245IEC66 1 5 mm Connection cable HO7RN F or 245IEC66 1 0 mm CAUTION Incorrect wiring connection may cause electri cal parts to burn out Be sure to comply with local regulations codes when running the wire from outdoor unit to indoor unit Size of wire and wiring method etc Every wire must be securely connected If incorrect or incomplete wiring is carried out fire or smoke result Prepare the power supply for the exclusive use of the air conditioner This product can be connected to the main breaker Connection to fixed wiring A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring when connect ing to a main breaker circuit 62 10 5 Test Operation 10 5 4 Remote Controller A or B Selection 10 5 1 Gas Leak Test Setting Check the flare nut connections for gas leaks with a gas leak detector and or soapy water Remote control A or B Selection gt Check places for When two indoor units are installed in the separated rooms it is not necessary to change the selector switches the indoor unit e When two indoor units are installed in the same room or adjacent two rooms if operating a unit two units may receive Valve cover the remote control signal simultaneously and operate In this case the operation can be preserved by setting either one indo
84. eaning operation When the cooling or dry operation shuts down the unit automatically starts the Self Press STOP button Cleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown after which the Only timer indicator lights and Self Cleaning operation starts 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 Operation stops 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 period the unit stops operating During Self Cleaning operations The louver opens slightly The indoor fan operates continuously at a speed of 500 rpm Self Cleaning operation times Operation time Self Cleaning operation time No Self Cleaning operation performed 0 minutes Up to 10 minutes Cooling Auto cooling Dry 10 minutes or longer 30 mins Heating Auto heating Auto fan only No Self Cleaning operation performed Shutdown To stop an ongoing Self Cleaning operation at any time Press the start stop button on the remote controller twice during the Self
85. eception Reception Remote range i 1 controller Remote controller Fig 10 3 1 10 3 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the refrigerant pipes from the rear o 5 0 0 J J o 0 0 Y itf uf Wc dia 66mm The center of the pipe hole is above the arrow Fig 10 3 2 1 After determining the pipe hole position on the installation plate gt drill the pipe hole 065 mm at a slight downward slant to the outdoor side NOTE When drilling into 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 E Hook V Pipe hole dia 65mm Mounting 7 1 Installation Screw plate 2 m or more from Boor Pipe hole Indoor unit Weight Fig 10 3 3 5A When the installation plate is directly 10 3 3 Electrical Work mounted on the wall 1 The supply voltage must be the same as the rated voltage of the air conditioner 2 Prepare a power source for the exclusive use of the air conditioner 1 Securely fit the installation plate onto the wall by screws with the upper and lower catches that hold the
86. ed within 2 hours after heating operation stopped and if the room temperature is 20 C or more the fan operation is 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 temperature after selecting an operation mode COOL HEAT reselect an operation mode DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid flow from blowing directly to persons Fan speed 220 1 Detects the room temperature Ta when the DRY operation started 2 Starts operation under conditions in the left figure according to the temperature difference between the room tempera ture and the setup temperature Tsc Setup temperature Tsc Set temperature 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 Operation flow and applicable data Description 2 Indoor fan In cooling operation gt motor control This operation controls the fan speed at indoor unit side Symbols The indoor fan cross flow fan is operated by the phase UH Ultra High control induction motor The fan rotates in 5 stages in H High MANUAL mode and in 5 st
87. erant so be careful that water dust and existing refrigerant or refrigerat ing 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 materi als 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 operate 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 2 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 3 If a refrigeration gas leakage occurs during installation servicing be sure to
88. essary 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 compound of borax and boric acid It is effective in case where the brazing tem perature is higher than 800 C Activated flux 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 Piping material Used brazing filler Used flux Do not use Copper Copper Phosphor copper Copper Iron Silver Paste flux Iron Iron Silver Vapor flux 1 Do not enter flux into the refrigeration cycle 2 When chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 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
89. estart Setting 6 66060 This product is designed so that after a power 0090 failure it can restart automatically in the same 6000 operating mode as before the power failure S Information The product was shipped with Auto Restart function in the OFF position Fig 10 5 3 Turn it ON as required How to Set the Auto Restart Press and hold the RESET button for about 3 seconds After 3 seconds three short electric beeps will be heard to inform you that the Auto Restart has been selected To cancel the Auto Restart follow the steps described in the section Auto Restart Function on Owner s Manual 63 11 HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units Therefore diagnose 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 Troubleshooting Procedure Troubleshooting Procedure First Confirmation Check Code 18 and 1E Primary Judgment Troubleshooting Judgment by Flashing LED of Indoor Unit How to Diagnose Trouble in Outdoor Unit Self Diagnosis by Remote Controller How to Check Simply the Main Parts Judgment of Trouble by Every Symptom How to Simply Judge Whether Outdoor Fan Motor is Good or Bad Precautions when handling the new inverter 3DV Inverter CAUTION HIGH VOLTAGE
90. ferred to the controller of the outdoor unit 2 When strong wind blows at outdoor side the operation of air conditioner continues with the fan motor stopped 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 table is selected of In cooling operation Compressor speed rps During ECO and QUIET and comfort sleep 10 10 no n e Outdoor fan speed rpm lt 22 1 lt 50 3 MIN MIN MIN ECO mode In Heating operation Tozsse 9 f9 When To is abnormal fD During 10 0 0 f8 2492 Operation flow and applicable data 4 Capacity control The cooling or heating capacity depending on the load is adjusted According to difference between the setup value of tempera ture and the room temperature the capacity is adjusted by the compressor revolution Remote controller Indoor unit Set temp Ts Room temp Ta Ts Ta Correction of Hz signal Detection of electromotive force of compressor motor winding Detection of motor speed and rotor position Correction value of Hz signal lt Operating Hz Inverter output change Commutation timing change Change of compressor speed
91. gain 11 Air purifying control This function generates nagative ion while cleaning the air in the room If air purifier ON signal is received while the air conditioner stops the air purifier starts operation and if it is received while the air conditioner operates the air conditioner and the air purifier start RAS 18SKVR E 22SKVR E only Operation button Present status PURE button Air conditioner Stop Air purifier AC operation Stop All AC Air purifier AC Air purifier All stop AC operation operation Air purifier only Air conditioner Joint use of AC and air purifier All stop Air purifying operation Cooling position AUTO L M M AC Air purifying operation Follows to AC operation Follows to AC operation Sending air purifier ON ORO 2 Air conditioner stops Air conditioner operates Air purifier operates The air ion generator operates linked with the air purifying operation When the previous operation was the operation of air conditioner air purifier an operation of air conditioner air purifier starts by pushing AC button on the remote controller Operation of air conditioner air purifier is stored in memory 1 Swing is available 2 Fan speed is Fan Auto mode varies order M 1 gt L L gt SL Sending air purifier OFF 9 6 4 Air conditioner Air purifier operate Operation lamp ON Start of air purifier
92. heck the motor When the motor is normal check PC board Not displayed Trouble on other indoor PC boards Operation continues Displayed when error is detected Replace board Connecting cable and serial signal Return serial signal is not sent to indoor side from operation started 1 Defective wiring of connecting cable 2 Operation of compres sor thermo Gas shortage Gas leak Operation continues 69 Flashes when trouble is detected on Return serial signal and normal status when signal is reset 1 When the outdoor unit never operate 1 Check connecting cable and correct if defective wiring 2 Check 25A fuse of inverter PC board 3 Check 3 15A of inverter board To display Other block during operation check compressor thermo operation and supply gas check gas leak also Unit operates normally during check If return serial signal does not stop between indoor terminal board 2 and 3 replace inverter PC board If signal stops between indoor terminal board 2 and 3 replace indoor board Block distinction Operation of diagnosis function Air Judgment and action ere Block Cause of operation conditioner Remarks 3 status board Outdoor P C Inverter over current protective circuit operates Short time off Displayed when error is detected Even if trying operation again all ope
93. hose but one can Fig 10 4 3 10 4 3 Refrigerant Piping Connection Flaring 1 Cut the pipe with a pipe cutter O X X X do 90 Obliquity Roughness Warp Fig 10 4 4 J Z2 S 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm Rigid Clutch type Outer dia of R410A Conventional copper pipe tool used tool used 1 0 to 1 5 1 0 to 1 5 Imperial Wing nut type EM A Pipe 1 5 to 2 0 2 0 to 2 5 Fig 10 4 5 Flaring size B Unit mm Fig 10 4 6 Outer dia of copper pipe In case of flaring for R410A with the conventional flare tool pull it out approx 0 5 mm more than that of R22 to adjust to the specified flare size The copper pipe gauge is useful for adjusting projection margin size 60 Tightening Connection Align the centers of the connecting pipes and tighten the flare nut as much as possible with your fingers Then tighten the nut with a wrench and torque wrench as shown in the figure aif union 200 union Caen nut side threaded side Use a wrench Use a torque wrench to secure to secure Fig 10 4 7 CAUTION Do not apply excessive force Otherwise the nut may break Unit Outer dia of copper pipe Tightening tor que 14 to 18 1 4 to 1 8 kgf
94. in pan and make sure that the water is being drained outside 3 When connecting extension drain hose insulate the connection part of extension drain hose with shield pipe Shield pipe l uu a Drain hose Inside the room N Extension drain hose Fig 10 3 20 CAUTION Install the drain pipe for proper drainage Improper drainage can result in water dripping inside the room This air conditioner has been designed to drain water collected from condensation which forms on the back of the indoor unit to the drain pan Therefore do not locate the power cord and other parts at a high place than the drain guide Wall Drain guide Fig 10 3 21 58 10 4 Outdoor Unit 10 4 1 Installation Place A place which provides enough space around the outdoor unit as shown in the 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 neighbors A place which is not exposed to a strong wind A place free of combustible gases A place which does not block a passageway When the outdoor unit is to be installed in an elevated position be sure to secure its feet This air conditioner accepts a connection piping length of up to 20 m There is no need to add refrigerant as long as the length of the connection piping is 15 m or less You will need to add 20 g of refriger
95. in several tens 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 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 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 when rotating it with hands If the resistance value between CN300 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 Fan motor is normal Outdoor P C board error Fan motor 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 board is replaced replace the outdoor fan motor 85 12 5 WARNING Since high voltages pa
96. ing 4 Remove screw ST1T 4 x 8L 2 pcs fixing the main body and the inverter box 5 Remove the front cabinet by performing step 1 in and remove the fixing screws ST1T 4 x 8L 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 As each connector has a lock mecha nism avoid to remove the connector by holding the lead wire but by holding the connector Remarks Inverter cover P board Soldered surface Discharging position Discharging period 10 seconds or more soldering STIT 4X8MSZN terminal block Put each leads through the hole Put the compressor leads through the hole The connector is one with lock so remove it while pushing the part indicated by an arrow A Be sure to remove the connector by holding the connector not by pulling the lead wire Procedure Remarks Control board 1 Disconnect the leads and connectors connected to assembly the other parts from the control board assembly 1 Leads CN603 e 3 leads black white orange connected to mH terminal block CN601 CN600 701 Lead connected to compressor Disconnect the connector Lead connected to reactor Disconnect the two connectors 2P 2 Connectors x7 CN300 Outdoor fan
97. ing Failure Interconnecting and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between and 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 O O 552770 or equivalent G or J type 5277G Diode with rated voltage of 400V White or more is acceptable D Terminal block Tester Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 8 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 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 2 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 s Refer to the chart in 11 6 Miswiring of connecting wires of indoor outdoor units Clogging of pipe and coming off of TC sensor 75 11 6 Check Code 18 and 1E lt Check procedure gt Gas leakage Disch
98. ing button to start the swing operation and press it again to stop the swing operation 10 INSTALLATION PROCEDURE 10 1 Installation Diagram of Indoor and Outdoor Units Pure Air Purifier 5 5 7 For the rear and left piping d Or mo Installation plate wall _ Wa 7 20 Insert the cushion between the indoor Ymon unit and wall and tilt the indoor unit for better operation Do not allow the drain hose to get slack Cut the piping hole sloped slightly Shield pipe Make sure to run the drain hose sloped downward Batteries 6 Filter screw e WOO D Remote control holder The auxiliary piping can be connected to the left rear left rear right right bottom Vinyl tape right or bottom left Apply after carrying out a drainage test Right G Rear right 80mm or more only when unobstructed to the front and both ELA Left Bottom Rear 4 right Bottom left J Insulate the refrigerant pipes separately When installing the outdoor unit leave with insulation not together open in at least two of direction A B C and D shown in the figure on the right Extension drain hose Not available provided by installer 8 mm thick heat resisting polyethylene foam Before installi
99. ion BODY ASSY BACK 18 22SKV E BODY ASSY BACK 18 22SKVR E EVAPORATOR ASSY 18SKV E SKVR E EVAPORATOR ASSY 22SKV E SKVR E GRILLE ASSY SUB TOSHIBA 18 22SKV E GRILLE ASSY SUB TOSHIBA 18 24SKVR E AIR FILTER PANEL ASSY SERVICE 18 22SKV E PANEL ASSY SERVICE 18 22SKVR E GENERATOR ASSY HV 18 22SKVR E COVER TERMINAL REMOTE CONTROLLER WIRELESS 18 22SKVR E REMOTE CONTROLLER WIRELESS 18 22SKV E Indoor Unit Part E Location Location Description Description No No 43T50308 SENSOR TC 43T69721 PC BOARD ASSY 18SKV E 43T60331 TERMINAL BLOCK 3P 43 69722 PC BOARD ASSY 22SKV E 43T69320 SENSOR TA 43 69723 PC BOARD ASSY 18SKVR E 43T62003 CLAMP CORD 43 69724 PC BOARD ASSY 22SKVR E 43T69725 PC BOARD ASSY WRS LED 43T51308 SWITCH ASSY MICRO 18 22SKVR E 18 24SKV E 43T21397 LOUVER MOTOR 43T69726 PC BOARD ASSY WRS LED 43T60386 MOTOR CORD LOUVER 18 24SKVR E 104 13 2 Outdoor Unit Sy ORE 4 A Y ie S Wey EE Yap T am oT oo j EP 105 Location 43005657 43005642 43005658 43005634 4301V035 4301V053 43100346 43119471 43062262 43041786 43041638 43146251 43043788 37546845 43146680 43147196 43147195 43047676 43047655 43047679 43047659 43047674 44246239 43047527 Description CABI FRONT CABINET UPPER CABI
100. irection adjustment sec 36 ENESA A o oS sc Es em 36 9 ERO 37 10 Temporary operation sueco ai eet 38 11 Air purifying control Detection of abnormality 38 12 Pulse Modulating valve control seeeeee 40 13 Self Cleaning cd rg ad Wei Re eden alu nC NER UR diste 41 14 Remote A or B selection sse rennen 42 DONEC Nec 43 COMFORT SLEEP MOOG 43 17 Shon DHYIBE eroe b dot 43 18 One Touch Comfort s so ecards Meee 44 19 44 20 FILTER Indicator La Ud 44 du ei 45 9 3 1 How Set the Auto Restart Function 45 9 3 2 How to Cancel the Auto Restart Function 2 46 9 3 3 Power Failure During Timer Operation 46 Remote Controller and Its Fuctions
101. it is in operation The green indicator is on 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 press 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 can celled In that case set the timer operation again NOTE The Everyday Timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure 46 9 4 Remote control 9 4 1 Remote control and its functions Infrared signal emitter Start Stop button Mode select button MODE Temperature button TEMP Fan speed button FAN Swing louver button SWING Set louver button FIX On timer button ON Off timer button OFF Sleep timer button SLEEP Setup button SET Clear button CLR COMFORT Memory and Preset button PRESET QUIET PURE SLEEP One Touch button ONE TOUCH 2 T High power button Hi POWER 19 Economy button ECO Cmd 2 Quiet button QUIET 5 ea Comfort sleep button COMFORT SLEEP Plasma Air Purifier button PURE 9 9 i 37 0 es CLOCK RAS 18 22SKVR E Only Filter reset button FILTER Clock Reset button CLOCK Check button CHK
102. ith the stop position as the center e If the stop position exceeds either upper or lower limit position swing operation is performed in width 35 from the limit which the stop position exceeded Description e The louver position can be arbitrarily set up by pressing FIX button e Swing When pressing SWING button during operation the louver starts swinging 36 9 operation Room temp Set temp Operation flow and applicable data etc When pressing ECO button on the remote controller a Economic operation is performed lt Cooling operation gt This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure FAN Fan speed depend on presetting and can change every speed 9 4 DRY max COOL min 6 x 5 COOL min DRY max COOL min 6 x 4 COOL min DRY max COOL min 6 x 3 COOL min DRY max COOL min 6 x 2 COOL min DRY max COOL min 6 x 1 COOL min Compressor speed OHz B zone a to cHz 18SKV E 22SKV E 18SKVR E 22SKVR E ee 7 Description lt Cooling operation gt 1 The control target temperature increase 0 5 C per hour up to 2 C starting from the set temperature when ECONO has been received 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation 3
103. ition Compressor ON Td PMV open degree control Stop by Room temp sensor remote controller Ta sensor control Power OFF Defrost SH Super Heat amount Ts Temperature of suction pipe of the compressor Tc or Te Heat exchanger temperature at evaporation side PMV Pulse Modulating Valve 40 Description 1 When starting the operation move the valve once until it fits to the stopper Initialize In this time Click sound may be heard 2 Adjust the open degree of valve by super heat amount SH control 3 If the discharge temperature was exces sively up adjust the open degree of valve so that it is in the range of set tempera ture Discharge temp control 4 When defrost operation is performed the open degree of valve is adjusted accord ing to each setup conditions during preparation for defrost and during defrost operation 4 way valve is inversed 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 em Operation flow and applicable data Description 13 Self Cleaning 1 Purpose function The Self Cleaning operation is to minimize the growth of mold bacteria etc by running the fan and drying so as to keep the Unit now performing cooling or dry operation inside of the air conditioner clean Self Cl
104. m 50 to 62 5 0 to 6 2 kgf m Tightening torque for connection of flare pipe The pressure of R410A is higher than R22 Approx 1 6 times Therefore securely tighten the flare pipes which connect the outdoor unit and the indoor unit with the specified tightening torque using a torque wrench If any flare pipe is incorrectly connected it may cause not only a gas leakage but also trouble in the refrigeration cycle Flare at indoor unit side Flare at outdoor unit side Fig 10 4 8 10 4 4 Evacuating After the piping has been connected to the indoor unit perform the air purge 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 vacuum pump manual Revised 2 Use a vacuum pump Be sure to use a vacuum pump with counter flow prevention function so that oil inside the pump does not flow back into the air conditioner pipes when the pump stops If oil inside the vacuum pump enters into the air conditioner circuit which uses R410A trouble with the refrigeration system may develop 1 Connect the charge hose from the manifold valve to the service port of the gas side packed valve 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 begin evacuating
105. motor 3P white See NOTE CN300 CN701 CN700 CN701 4 way valve 2P yellow CN600 and 603 CN600 TE sensor 2P white 2 CN700 PMV white disconnect them they must CN603 TS sensor 3P white be pressed in the direction of CN601 TD sensor 3P white Rs arrow while pulling them CN602 TO sensor 2P white 700 602 CN300 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 Z N board base Remove the heat sink and control board assembly while keeping them screwed together P C board base NOTE P C board Disengage the four claws of the P C board base 2 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 PC board is inserted properly into the board support groove 98 Side cabinet Procedure Side cabinet right 1 Perform step 1 in and all the steps in 2 Remove the fixing screw ST1T 4 x 8L 5 pcs used for securing the side cabinet to the bottom plate and valve fixing panel Side
106. ndition Set the fan speed level to HIGH The unit compressor operates continuously in the above condition in No 5 Check it is impossible to detect the voltage DC 15V between 3 and 4 of the motor terminals The motor does not operate or the fan motor does not rotate with high speed But it is possible to receive the signal from the remote controller The motor rotates but vibrates strongly The indoor fan motor is defective Protected operation of P C board The board is defective The connection of the motor connector is loose 11 9 2 Board Layout RAS 18 22 Series gt MCC 5045 01 COMPONENT SIDE 8 GND 8 SWRT C401 C111 07 2 f 12V 5V 1 Sensor characteristic table TD Discharge temp sensor Room temp sensor Heat exchanger temp sensor TO Outdoor temp sensor us 18 is TE Outdoor heat exchanger temp sensor TS Suction temp sensor Resistance value 0 10 20 30 40 50 Temperature 82 11 9 3 Indoor Unit Other Parts Part name Room temp TA sensor Heat exchanger TC sensor Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Remote controller Refer to 11 5 1 5 Louver motor 2473 Measure the resistance value
107. ng the wireless remote controller Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type following the and positions p dd amp y 9 Batteries 2 Wireless remote controller 51 10 2 Optional Parts Accessories and Tools 10 2 1 Optional Installation Parts Part Code Parts name Refrigerant piping Indoor unit name Liquid side Outer diameter Gas side Outer diameter RAS 18SKVR E 18SKV E RAS 22SKVR E 22SKV E 6 35 mm 12 7 mm Shield pipe for extension drain hose polyethylene foam 6 mm thick Attachment bolt arrangement of outdoor unit Secure the outdoor unit with the attachment bolts and nuts if the unit is likely to be exposed to a strong wind 125 mm Air inlet Use 208 mm or 010 mm anchor bolts and nuts If itis necessary to drain the defrost water attach drain nipple to the base plate of the outdoor unit before installing it 10 2 2 Accessory and Installation Parts Ix ES _ Air outlet 600 mm x Drain outlet Part No Part name Q ty Part No Part name Q ty Part No Part name Q ty Installation plate x 1 Super Oxi Deo filter x 1 Wireless remote control x 1 Lm Super Sterilizer filter x 1 SKV series Drain nipple x 1 SKVR series e E Water proof rubber cap x 2
108. oard may result in electric shocks 12 1 Indoor Unit Part name Procedures Remarks 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 right air filters Remove the plasma air purifier for model RAS 18 22SKVR E only 86 Procedures Remarks 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 lt How to assemble the front panel gt 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 Insert the plasma air purifier for model RAS 18 22SKVR E Press in the plasma air purifier until the protrusions on both sides are completely inserted into the holders If installation is incomplete the FILTER indicator orange may light O o Plasma air purifier Protrusion IS 3 cnm 3 Tighten four screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound 87
109. ol B is memorized 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 Display 00 Display 1 Purpose This operation is to operate only one indoor unit using one remote controller Description When operating one indoor unit in a situation where two indoor units have been installed in the same room or nearby rooms this operation prevents the remote controller signal from being received simultaneously by both units thus preventing both units from operating Operation The indoor unit on which the remote controller selection has been set to B receives the signal of the remote control ler also set to B At the factory the remote controller selection is set to A on all the indoor units There is no A setting display 15 QUIET mode Operation flow and applicable data etc When the QUIET button is pressed the fan of the indoor unit will be restricted the revolving speed at speed L until the QUIET button is pressed once again cancel Quiet mode Description 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
110. on Referring to the right figure check the lt Caution on High Voltage gt high voltage output of the air ionizer In this time peel the thermal insulator and attach x 2 o it to the original position after check operation NOTE Ly Use an exclusive high voltage tester otherwise 074 e ey cn High the tester may be broken Voltage uni Does the electrode YES output approx 6kV No trouble Replace the high voltage generator o 2 2 High Voltage tester 78 11 8 How to Diagnose Trouble in Outdoor Unit 11 8 1 Summarized Inner Diagnosis of Inverter Assembly Diagnosis Process flowchart Remove connector of compressor Check 25A fuse Part 01 Replace fuse Check electrolytic capacitor diode block DBO1 etc Check terminal voltage of electrolytic capacitor Check electrolytic capacitor diode 01 Does outdoor fan rotate Remove connector CN300 of outdoor fan motor and using a tester check resistance value between every phases at motor side Replace outdoor fan motor Ta Preparation Operation Measure ment Check Stop Check Measure ment ble 11 8 1 Contents Turn OFF the power supply breaker and remove 3P connector which connects inverter and compressor Check whether 25A fuse on the control board assembly is blown or not F01
111. ontroller 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 temperature 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 Reception of information of operation status Serial signal including outside temp data to the outdoor unit and judgment display of error Air purifier operation control 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 P M V control 4 way valve control 26 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
112. or 73 5 Troubleshooting for remote controller lt Primary check gt 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 Operation lamp on indoor unit is not indicated Push the START STOP button Is transmission NO mark indicated YES Push RESET button on remote controller with tip of pencil Is receiver on indoor unit exposed to direct sunlight Does indoor unit Is there any t thyristor operate when moving fluorescent light remote controller near receiver or nearby y indoor unit Batteries are exhausted Push the START STOP button Is transmission mark indicated YES Does indoor unit beep and operate YES Does indoor unit start to operate by automatic restart function Does radio sound is affected by remote controller when a signal is transmitted at distance of 5 cm from radio Remote controller is defective P C board is defective Keep indoor unit Avoid direct away from thyristor Replace Replace Normal Replace sunlight fluorescent light P C board batteries operation remote controller NOTE After replacing batteries push the RESET button with a tip of a pencil 74 11 5 2 Wir
113. or unit or remote control to B setting Both are set to A setting in factory shipment The remote control signal is not received when the settings of indoor unit and remote control are different There is no relation between A setting B setting and A room B room when connecting the piping and cables Electric parts cover Remote Control A B Selection To separate using of remote control for each indoor unit in case Check places for of 2 air conditioner are installed nearly the outdoor unit the remote control signal simultaneously and operate In this Fig 10 5 1 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 CHK button on the Remote Control by the tip of the 10 5 2 Test Operation pencil 00 will be shown on the display 4 Press MODE during pushing CHK B will show on the display To test the system press and hold RESET button for 00 will disappear and the air conditioner will turn OFF The 10 sec There will be one short beep Remote Control B is memorized Note 1 Repeat above step to reset Remote Control to be A 2 Remote Control A have not A display 3 Detault setting of Remote Control from factory is A TOSHIBA B Display 00 Display LILI RESET button M Fig 10 5 2 9 10 5 3 Auto R
114. ottom plate and heat exchanger ST1T 4 x 8L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST1T 4 x 8L 1 pc 9 Pull upward the refrigeration cycle 10 Remove BOLT 3 pcs fixing the compressor to the bottom plate Precautions when assembling the compressor Tighten the compressor bolts using a tighten ing torque of 4 9 Nem Er ee o e yf Valve fixing plate Compressor Reactor 1 Perform work of item 1 of Q 2 Remove screws fixing the reactor 5 1 04 x 8L 4 pcs 100 Electronic expansion valve coil Procedure 1 Detachment 1 Perform step 1 in all the steps in and 1 5 2 Remove the by pulling it up from the electronic control valve body 2 Attachment 1 When assembling the coil into the valve body ensure that the coil anti turn lock is installed properly in the pipe lt Handling precaution gt When handling the parts do not pull the leads When removing the coil from the valve body use your hand to secure the body in order to prevent the pipe from being bent out of shape Remarks Coil anti turn lock Coil anti turn lock position Coil inserting position 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
115. ouble on Check power voltage 220 230 240 V 10 Overload operation of refrigera tion cycle Check installation condition Short circuit of outdoor diffuser Break down of All off compressor Displayed when error is detected Check 4 way valve operation 4 way valve inverse error Operation TC sensor value continues lowered during heating operation Lyc 11 5 Judgment of Trouble by Every Symptom 11 5 1 Indoor Unit Including Remote Controller 1 Power is not turned on Does not operate entirely lt Primary check gt 1 Is the supply voltage normal 2 15 the normal voltage provided to the outdoor unit 3 Is the crossover cable connected properly 4 the fuse 01 blown RAS 18 22 Series Turn off power supply once and 5 second later turn it on again N Is OPERATION indicator flashing YES Does transmission mark on remote controller flash normally and is its signal transmitted properly YES Is it possible to turn on power supply by pushing START STOP button on remote controller YES Unit operates normally Is fuse 01 of indoor control board blown Parts R04 R05 DBO1 C01 01 and 01 are defective Is voltage DC12V or 5V indicated on rear of indoor control board normal NO Is DC310 340V
116. ove the PC board assembly from electronic parts base Remove the connecting cables from the terminal block Table 11 9 1 Check points Check whether or not the fuse F01 is blown Impulse voltage was applied or the indoor fan motor short circuited Remove the connector of the motor and turn on the power supply breaker If OPERATION indicator flashes once per second it is not necessary to check steps 1 to 3 in the right next column Check power supply voltage 1 Between 1 and No 3 of CNO1 220 240 2 Between and of DC 310 340V Between of C10 and output side of IC08 DC 15V 4 Between 12V and GND 5 Between 5V and GND The terminal block or the crossover cable is connected wrongly The capacitor C01 line filter 601 resistor R02 or the diode 0 01 is defective IC11 IC13 and T101 are defective IC11 IC13 and T101 are defective 1011 IC13 IC14 and T101 are defective Push START STOP button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN51 and No 1 of CNO1 DC 15 60 51 and 52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER PURE SKVR E Preheat Defrost SKV E are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the
117. r 1 Press Set the ON timer 3 Press Set the OFF timer 4 Press button during the f or 2 Q mark flashing 2 Press During the every day timer is activation both arrows 8 or 2 are indicated 48 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 10 PRESET OPERATION Set your preferred operation for future 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 PRESET for 3 seconds to memorize the setting The mark displays 3 Press PRESET Operate the preset operation 11 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 secpmds 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 12 QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press QUIET Start and stop the operation Note Under certain conditions QUIET operation may not pro
118. rain hose Fig 10 3 10 56 How to attach the drain 1 Insert hexagonal wrench 4 mm 4mm Fig 10 3 11 2 Firmly insert drain cap No gap A Do not apply lubricating oil refrigerant machine oil If applied deterioration drain leakage of the drain Insert a hexagon plug occur wrench 4mm Fig 10 3 12 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 Securely insert the drain hose and drain cap otherwise water may leak In case of right or left piping After making slits on the front panel with a knife or similar tool cut them out with a pair of nippers or an equivalent tool Fig 10 3 13 when inserting the drain cap In case of bottom right or bottom left piping After making slits on the front panel with a knife or similar tool cut them out with a pair of nippers or an equivalent tool Fig 10 3 14 Left hand connection with piping Bend the connecting pipes so that they are posi tioned within 43 mm above the wall surface If the connecting pipes are positioned more than 43 mm above the
119. rations stop immediately Replace P C board Position detect circuit error or short circuit between windings of compressor off Displayed when error is detected 1 Even if connecting lead wire of compressor is removed position detect circuit error occurred Replace P C board Measure resistance between wires of compressor and perform short circuit Replace compressor Even if trying operation again all operations stop immediately Replace P C board 1 Check sensors TE TS 2 Check board Current detect circuit off Displayed when error error is detected A Being out of place All off disconnection or short circuit of the outdoor heat exchanger sensor TE or suction temp sensor Ts Displayed when error is detected Disconnection or short off circuit of discharge temp sensor Displayed when 1 Check discharge temp sensor error is detected TD 2 Check P C board Position detect error over current protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor N Outdoor fan drive All off system error Displayed when error is detected ow Not displayed Outdoor heat exchanger Operation 1 Check outdoor temp sensor temp sensor error continues TO 2 Check P C board
120. rcuit An insufficient circuit capacity or inappropriate installation may cause fire When wiring use the specified cables and connect the terminals securely to prevent external forces applied to the cable from affecting the terminals Be sure to provide grounding Do not connect ground wires to gas pipes water pipes lightning rods or ground wires for telephone cables Conform to the regulations of the local electric company when wiring the power supply Inappropriate grounding may cause electric shock CAUTION Exposure of unit to water or other moisture before installation may result in an electrical short Do not store in a wet basement or expose to rain or water 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 or discharged air might disturb neighbors To avoid personal injury be careful when handling parts with sharp edges Perform the specified installation work to guard against an earthquake If the air conditioner is not installed appropriately accidents may occur due to the falling unit For Reference If a heating operation would be continuously performed for a long time under the condition that the outdoor temperature is 0 C or lower drainage of defrosted water may be difficult due to freezing of the bottom plate resulting in a trouble of the cabinet or fan It is recommended to procure an antifree
121. re when power is ON OPERATION Green Flashing display 5 Hz Protective circuit operation for indoor P C board Which lamp 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 board Flashing display 5 Hz OPERATION Green TIMER Yellow Protective circuit operation for others FILTER Orange including compressor Flashing display 5 Hz NOTES 1 The contents of items B and C and a part of item E are displayed when air conditioner operates 2 When item B and C and item B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing 67 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 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 If 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
122. re 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 Reference outer diameter of Minimum joint thickness Nominal diameter copper pipe jointed mm mm 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 airtight 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 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 flar
123. rt of the front right side onto the concave section of the bottom plate Insert the claw of the side cabinet right into the square hole in the front cabinet 3 Return the screws that were removed above to their original positions and attach them the main unit and attach it pushing upward 96 Square hole Remarks Concave section assembly Procedure 1 Perform work of item 1 in D 2 Remove screw 511104 x 8L 2 pcs of the upper part of the front cabinet f removing the inverter cover in this condition P C board can be checked f there is no space above the unit perform work of 1 in 2 Be careful to check the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting 9 polarity by discharging resistance approx 100040 or plug of soldering iron to terminals a of the C14 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 185 500 225 7 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 polarity with screwdriver etc for discharg
124. s it was before service mode was engaged Fig 11 4 1 68 11 4 2 Caution at Servicing 1 2 After servicing press the START STOP button to return to the normal mode After servicing by the check code turn off breaker of the power supply and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status However the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory After servicing press CLR button under check mode status and then send the check code 7F to the indoor unit The error code stored in memory is cleared Block distinction Table 11 4 1 Operation of diagnosis function Check Block Indoor P C board etc Cause of operation Short circuit or discon nection of the room temperature sensor TA sensor Air conditioner status Operation continues Remarks Displayed when error is detected Judgment and action Check the room temp sensor When the room temp sensor is normal check P C board Being out of place disconnection short circuit or migration of heat exchanger sensor TC sensor Operation continues Displayed when error is detected Check heat exchanger sensor When heat exchanger sensor is normal check P C board Lock of indoor fan or trouble on the indoor fan circuit All off Displayed when error is detected C
125. s 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 main taining of air conditioner Table 11 1 1 Operation of air conditioner When power breaker is turned the operation indicator Green of the indoor unit flashes Description The OPERATION lamp of the indoor unit flashes when power source is turned on If START STOP button is operated once flashing stops Flashes also in power failure Compressor may not operate even if the room temperature is within range of compressor ON 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 In Dry and ECO mode FAN air flow display does not change even though FAN air flow select button is operated The air flow indication is fixed to AUTO Increasing of compressor motor speed stops approx 30 seconds after operation started and then compressor motor speed increases again approx 30 seconds after
126. ss 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 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 b
127. sure resisting strength flare processing dimensions and opposite side dimension of flare nut For 12 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 air water heat pump installation Conventional air water heat pump installation Used tool Flare tool Pipe flaring Existence of new equipment for R410A Whether conven tional equipment can be used Note 1 Whether new equipment can be used with conventional refrigerant Yes Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Note 1 Note 1 Torque wrench For 012 7 Connection of flare nut No No Gauge manifold Charge hose Evacuating refrigerant charge run check etc No No
128. t water produced during heating operations is drained off efficiently If a centralized drain is required when installing the unit on a balcony or wall follow the steps below to drain off the water 1 Proceed with water proofing by installing the water proof rubber caps in the 2 elongated holes on the base plate of the outdoor unit How to install the water proof rubber caps 1 Place four fingers into each cap and insert the caps into the water drain holes by pushing them into place from the underside of the base plate 2 Press down on the outer circumferences of the caps to ensure that they have been inserted tightly Water leaks may result if the caps have not been inserted properly if their outer circumfer ences lift up or the caps catch on or wedge against something gt Q SL Water proof rubber caps EZ supplied with the outdoor unit Fig 10 4 2 2 Install the drain nipple and a commercially available drain hose with 16 mm inside diam eter and drain off the water For the position where the drain nipple is installed refer to the installation diagram of the indoor and outdoor units Check that the outdoor unit is horizontal and route the drain hose at a downward sloped angle while ensuring that it is connected tautly Base plate Q Drain nipple ET Commercially available 2 drain hose flatten and prevent water from draining Do not use ordinary garden
129. tal tester Check compressor Winding is not opened winding resistance Operation Remove connector CN300 of the outdoor fan motor turn on the power supply breaker Replace Replace and perform the operation control board compressor Stops though activation is prompted Check operation within 2 minutes 20 seconds after activation stopped 11 9 How to Check Simply the Main Parts 11 9 1 How to Check the P C Board Indoor Unit 1 Operating precautions 1 When removing the front panel or the board be sure to shut off the power supply breaker 2 When removing the PC board hold the edge of the PC board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the board hold the whole housing Do not pull at the lead wire 2 Inspection procedures 1 When a PC board is judged to be defective check for disconnection burning or discoloration of the copper foil pattern or this board 2 The PC board consists of the following 2 parts a Main P C board part DC power supply circuit 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 To check defect of the board follow the procedure described below 80 3 Check procedures RAS 18 22 Series Procedure Turn off the power supply breaker and rem
130. the wiring cover over the opening used to work on the con necting wires of the side cabinet and secure it using the two fixing screws ST1T 4 x 8L 2 pcs At this point the top cushion of the wiring cover must be on the inside of the opening 4 Attach the valve cover 5 1 04 x 8L 1 pc 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 05 Remarks Upper cabinet Water proof cover Valve cover Insert the bent part into the rear panel of the inverter Bring into contact against these parts Align the stitch line with the top edge of the front cabinet Bend downward and align with the inside surface of the front cabinet How to mount the water proof cover Front cabinet Procedure 1 Detachment 1 Perform step 1 2 Remove the fixing screws ST1T 4 x 8L 2 pcs used to secure the front cabinet and inverter cover the screws ST1T 4 x 8L 3 pcs used to secure the front cabinet at the bottom and the fixing screws ST1T 4 x 8L 2 pcs used to secure the motor base e The front cabinet is fitted into the side 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 the side cabinet left 2 Hook the bottom pa
131. ting mode 5 Fan is controlled as followings 19 Mode Hi POWER button on the remote controller is pressed When Hi POWER button is pressed 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 The indoor unit operates in according to the current operation 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 increase 1 tap Heating operation The 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 increase 1 tap The Hi POWER mode can not be set in Dry operation 20 FILTER Indicator 18 22SKVR E only When the elapsed time reaches 1000 hours after air purifier operation the FILTER indicator lights After cleaning the filters turn off the FILTER indicator How to Turn Off FILTER Indicator Press 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 press RESET button to turn off the FILTER lamp See page 38 A 9 3 Auto Restart Function This
132. tion The green indicator is on three seconds Less than 10 seconds 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 press RESET button once more or use the remote controller to turn it on While the filter check indicator is on the RESET button has the function of filter reset betton 45 9 3 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Repeat 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 Operation Press RESET button for more than three seconds Less than 10 seconds When the system is operating Operation Press RESET button for more than three seconds Less than 10 seconds Motions The unit is on standby 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 press RESET button once more or use the remote controller to turn it off Motions The un
133. tion continues for 15 minutes lt Returning from defrost operation gt 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 8 Louver control 1 Louver position Operation flow and applicable data etc This function controls the air direction of the indoor unit e The position is automatically controlled according to the operation mode COOL HEAT e 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 louver closes fully is 0 1 Louver position in cooling operation Cooling operation AUTO COOL Initial setting of Cooling storage position Louver Horizontal blowing 37 4 2 Louver position in heating operation Heating operation AUTO HEAT bor Initial setting of Heating storage position Louver Directs downward 76 9 2 Air direction adjustment Horizontal blowing Inclined Blowing Inclined Horizontal blowing downward blowing blowing SCA 24 24 xa 3 Swing e Swing operation is performed in width 35 w
134. ture 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 from the outdoor unit controller it is assumed as a trouble Operations followed to judgment of serial signal from indoor side 9 2 9 3 9 4 Operation Description Te Basic operation mri mr 28 A Operation Control 28 2 Cooling Heating operation 29 S AUTO Operation p 29 5 lt 05 mr 29 2 Indoor fan motor control 30 3 Outdoor Tarvmotoreorittol ta ur ety Rue ea cy eaa Roc pei ka 32 4 Capacity COMM Okc rm 33 5 Current release control os Ee Rei dea sa 33 6 Release protective control by temperature of indoor heat exchanger 34 7 Defrost control Only in heating 35 8 EoI EIRIAN TOREM 36 1 Louver OO SIMON ER M mt 36 2 Air d
135. tus of the outdoor heat exchanger and the defrost operation is performed with 4 way valve reverse defrost system Start of heating operation Outdoor heat exchanger temperature 01015 29 Operation time Minute The minimum value of Te sensor 10 to 15 minutes after start of operation is stored in memory as 0 Table 1 When 0 gt 2 5 continued for 2 minutes in A zone defrost operation starts When the operation continued for 2 minutes in B zone defrost operation starts When 0 TE gt 3 continued for 2 minutes zone defrost operation starts 25 Description 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 lt Defrost operation gt Defrost operation A to 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 lt Finish of defrost operation gt Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 C or higher 2 Temperature of outdoor heat exchanger is kept at 5 C or higher for 80 seconds 3 Defrost opera
136. tween flare nut and flare seal 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 c 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 tighten ing 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 Nominal Outer diameter diameter mm Tightening torque 14 to 18 140 to 180 Tightening torque of torque wrenches available on the market kgf cm 16 160 18 180 33 to 42 330 to 420 42 420 50 to 62 500 to 620 55 550 63 to 77 630 to 770 10 65 650 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 pres
137. urn the unit OFF Q Setthe operation mode or plasma air purifier on the remote control 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 them press SET button to make 00 disappear Press button to turn the unit When short timer is activated all setting on the remote operates immediately besides all indicatiors on front panel turns ON continuously for 3 seconds 18 Comfort Operation flow and applicable data etc One touch comfort is the fully automated operation that is set according to the preferable condition in a region Fan Operation AUTO AUTO L 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 Description 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 opera
138. ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas may occur 4 When installing or removing an air conditioner do not allow air or moisture to remain in the refrig eration cycle Otherwise pressure in the refrig eration cycle may become abnormally high so that a rupture or personal injury may be caused 5 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 concentration exceeds the marginal level an oxygen starvation accident may result 7 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 8 Unauthorized modifications to the air conditioner may be dangerous If a breakdown occurs please call a qualified air conditioner technician or electrician Improper repair s may result in water leakage electric shock and fire etc 3 2 Refrigerant Piping Installation 3 2 1 Piping Materials and
139. vide adequate cooling or heating due to low sound features 13 COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF Press COMFORT SLEEP Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease 14 SLEEP TIMER OPERATION To start the sleep timer OFF timer operation Press SLEEP Select 1 3 5 or 9 hrs OFF timer operation 49 9 4 3 and Functions of Indications on Remote Controller Display All indications except for the clock time indicator are displayed by pressing the 5 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 ON Dry Heat Temperature indicator Indicates the temperature setting 17 C to 30 C PURE indicator Shows that the electrical air purifying operation is in progress FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW a LOW L MED m HIGH _ be shown Indicates AUTO when the operating mode is either AUTO Dry
140. ze heater locally for a safe installation of the air conditioner For details contact the dealer 2 SPECI FI CATIONS 2 1 Specifications Unit model Indoor Outdoor eating capacit eating capacity range Power suppl Electric peration mode Heating Cooling Heating characteristic unning current 0 30 0 28 0 30 0 28 0 30 0 28 0 30 0 28 ower consumption A W Power factor peration mode Heating unning current A 6 98 6 40 ower consumption W 1520 Power factor 98 _ tarting current A 7 28 6 68 3 72 3 52 44 39 32 44 38 32 4 ooling capacit ooling capacity range Heating 6 98 6 40 1520 Cooling 6 40 5 87 1380 Un E C Sound Pressure Indoor level ___49 O dB A 59 53 47 59 54 47 OP 9 Sound power Indoor level dB A Indoor unit Unit model RAS 18SKV E RAS 18SKVR E Dimension Height mm 320 Width mm 1050 1050 13 30 E 39 3 72 dB A 44 39 32 dB A M L I M L 59 53 47 59 54 47 5 ct ct pu 9 9 9 A A A DIO A A x c 2 5 3 3 3 3 3 228 350 159 65 et weight Kg an motor output 15 7 16 2 15 9 16 5 Cooling Heating m3 min W Outdoor unit Unit model RAS 18SAV E Dimension Height mm 550 Width mm 780

SERVICE MANUAL

Contents

Download Pdf Manuals

Related Search

Related Contents