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SERVICE MANUAL - Cool Designs Ltd

Contents

1. CN603 AND BLK Ya VEL DC5V O5 T3 15A Heat Exchanger Sensor ANNA 2 250VAC DC12V O Fuse F01 29 o BLK rrr CN601 AND WHI Varistor E Thermo Sensor R01 o TA 77 5 CN604 i o RED Ee a CN212 CN401 WHI RED TEL CX 3 a a CN301 WHI all a SEE 2 514131271 1 6X5 J4X312X1 ALEK Wireless Unit DC MOTOR Assembly WP 021 iN Fan Motor 21 YEL Stepper motor Damper Color indication YEL YELLOW BLK BLACK RED RED BLU BLUE WHI WHITE ORG ORANGE GRN amp YEL GREEN amp YELLOW 6 SPECIFICATIONS OF ELECTRICAL PARTS 6 1 Indoor Unit Fan motor for indoor ICF 340 41 1 DC340 41W Room temp sensor TA sensor 10kQ at 25 Output Rated 1W 16 poles DC12V 6 Dumper motor 24237 Output Rated tW 16 poles DC12V 6 2 Outdoor Unit eon RAS IOSAVEE RAST3SAV2E uction temp sensor TS sensor Inverter attached ischarge temp sensor TD sensor Inverter attached 62k 20 C Outside air temp sensor TO sensor Inverter attached ES Heat exchanger temp sensor TE sensor n AC250V 20A 7 Terminal block 5P RAS 10SAV2 E RAS 13SAV2 E DA89X1C 23FZ2 Compressor 3 phases 4 poles RAS 18SAV2 E DA130A1F 27F ES Coil for PMV CAM MD12TCTH 5 DC12V Coil for
2. 3 AUTO operation 1 Detects the room temperature TA when Selection of operation mode the operation started As shown in the following figure the operation starts by 2 Selects an operation mode from selecting automatically the status of room temperature the left figure TA when starting AUTO operation 3 Fan operation continues until an 1 When reselecting the operation mode the fan operation mode is selected speed is controlled by the previous operation mode 4 When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20 or more the fan operation is Cooling operation performed with Super Ultra LOW mode for 3 minutes Then select an operation mode 5 If the status of compressor OFF continues for 15 minutes the room Heating operation temperature after selecting an operation mode COOL HEAT reselect an operation mode Ta Monitoring Fan 342 1 Basic operation Operation flow and applicable data etc 4 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 NI Description 1 Detects the room temperature TA when the DRY operation started 2 Starts operation under conditions in the left figure according to the te
3. 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 discharging 4 Remove screws ST1T 4 x 8L 2 pcs fixing the main body and the inverter box 5 Remove the front cabinet by performing step 1 in Q 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 5 Remarks Inverter cover board Soldered surface Discharging position Discharging period 10 seconds or more screw STIT 4X8MSZN Terminal block Put the compressor Put each leads leads through through the hole the hole The connector is one with lock so remove it while pushing the part indicated by an arrow oN Be sure to remove the connector by holding the connector not by pulling the lead wire Control board assembly Procedure 1 Disconnect the leads and connectors connected to the other parts from the control board assembly 1 Leads 3 leads black white orange connected to terminal block Lead connected t
4. Operation START STOP Operation Mode Selection AUTO COOL DRY HEAT FAN ONLY Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting FLOOR ON OFF ECO Hi POWER COMPORT SLEEP 8 2 Outdoor Unit Inverter Assembly Josseidwoy JoopinO LINN YOOGLNO HUN OJIN Y O IN OA EA OSINd ov lt oq ov lt JoyeAu queuing queuing JBAUG 2v Josuos JeyeAuo juano yndu ZHN Aouenbe y UORn294107 20306 JOMOd YIH Joopul 0 eM p eBreyosig A W d q Y nd no uej JOOPINO JO9 OP JUBUND J9AO 199 0 009 3ndu siseuju s MIN 9SION 31 sosues due JESH 1 Josues duiej vonons OL 4osues dua GL Josues a 9 d 6006021 m eed RR
5. Spanner or Monkey wrench A Also prepare the following equipments for other installation method and run check 1 Clamp meter 2 Thermometer 3 Insulation resistance tester 4 Electroscope 13 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant according to the following steps Recover the refrigerant and check no refrigerant remains in the equipment TEF When the compound gauge s 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 N CAUTION 1 Never charge refrigerant exceeding the specified amount 2 If th
6. lt Y B C DA T _ A Die Pipe Pipe A B Flare Nut xs Imperial i Rigid Thickness clutch type wing nut Tighten torque iameter type R410A tool 410 tool mm mm mm mm mm mm kgf m 6 35 0 8 0 to 0 5 1 5 to 2 0 9 1 17 14 to 18 1 4 to 1 8 9 52 0 8 0 to 0 5 15to20 13 2 22 33 to 42 3 3 to 4 2 12 7 0 8 0 to 0 5 2 0t02 5 16 6 26 50 to 62 5 0 to 6 2 72 e 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 speciPed 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 Pa Flare at outdoor unit side 10 4 5 Evacuating After the piping has been connected to the indoor unit you can perform vacuuming together at once VACUUMING Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump Do not use the refrigerant in the outdoor unit For details see the manual of the vacuum pump Using a vacuum pump Be sure to use a vacuum pump with counter flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops If oil inside of the vacuum pump enters the air c
7. Part name Side cabinet Procedure 1 Side cabinet right 1 Perform step 1 in 2 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 2 Side 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 Remarks z o o x back body section is onto the bottom plate her Detail Detail Detail Fan motor 1 Perform work of item 1 of 1 and 2 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened by turning clockwise 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 116 Flange nut Part name Compressor Procedure 1 Perform work of item 1 of 1 and 2 3 3 2 Extract refrigerant gas 3 Remove the partition board ST1TO4 x 8L pcs 4 Remove the sound insulation
8. 4 BLK PU WHI CM n Q200 205 15005405 RED FM 3 IGBT 9 LETT P C BOARD MCC 5009 R321 FAN MOTOR ANA T YEL P24 E SET R320 2 EN P23 A YEL 4P22 28318 2 BRW P20 rans P35 PULSE MOTOR VALVE FUSE 101 VARISTOR mE T paat 0 1l P34 oo DBO1 i m 4 CN603 Y 1 ek TS TOM ABSORBER SEMP SENSOR IE CN602 14 Cw VARISTOR 252 E01 OUTDOOR PUSE TEMP SENSOR AC250V PO1 poz CN601 UE ORN BLK WHI TD Lol DISCHARGE PIPE LUCR B DENEN TEMP SENSOR REACTOR CN600 Cow 1 P32 CN701 P33 P31__ P30 PUR s T COLOR IDENTIFICATION BLK BLACK WHI WHITE 3 8 BLU BLUE BRW BROWN SEC AE SUPPLY RED RED ORN ORANGE 220 240V 50Hz GRY GRAY _ YELYELLOW REACTOR i 220V 60Hz PNK PINK PUR PURPLE i 1 et eed 1 Outdoor Terminal Block Indoor Terminal Block Heat Exchanger 0 x a GRN amp YEL POWER SUPPLY From outdoor unit 2 han Motor Base 10 220 240 50Hz GRN amp YEL SHEET i METAL 1 220 230 60Hz 77 BLK CN501 CN801 CN21 112737247576 Stepper motor BLK AND BAR 22 Heat Exchanger Sensor TC TCJ Main P C Board WHI Vertical air flow louver O 124 3 YEL
9. I E x 11 4 N r A 11 TO Sensor 06 707 Ne TD Sensor O4 705 2 03 Location Part Location Description Description No No No 701 43762320 HEATSINK Made in Thailand 705 43 60377 TEMPERATURE SENSOR 702 43769880 PC BOARD Made in Thailand 706 43150304 SENSOR HEAT EXCHANGER 703 43760392 TERMINAL 5P Made in Thailand 704 43760326 FUSE 707 43762313 BASE PLATE PC Made in Thailand 125 13 7 P C Board Layout RAS 18SAV E 705 Li Pui Location Location No Part No Description No Part No Description 43050422 Sensor TE 4306V029 P C board Ass y MCC5009 43050423 Sensor TS 43160571 Fuse Holder 15A 250V 43050427 Sensor TO 43160590 Fuse 43050430 Sensor TD 43062228 Base P C board 43160566 Terminal block 6P 20A 126 TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAM BOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND
10. 220 240 between D 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 on to prevent a cold air from blowing in Turn off power supply once and turn it on again Y Is it possible to detect DC 1V or more between NO and of motor connector CN301 Does fan motor YES continue to operate YES Peplace indoor fan motor Start to operate indoor unit in cooling operation at airflow level LOW Is it possible to detect NO Does indoor DG 310 340V between fan operate of motor one or CN301 YES A i Turn off indoor unit and remove Motor connection condition connector from motor Is it possible to detect DC 18 Then push 6 button between 4 and 98 on remote controller to stop motor connector flashing lamp on indoor unit Is it possible to detect Change airflow level DC 15V between and 3 of MOS connector CN301 to HIGH Peplace main P C board Start to operate the indoor unit in except heating operation At this time is it possible to detect DC 1V or more between and 3 of motor connector CN301 YES Turn off indoor unit and remove connector from mo
11. 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 operating mode 5 Fan is controlled as followings 22 Hi POWER 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 e The indoor unit operates in according to the current operation 2 Cooling operation e The preset temperature drops 1 C The value of the preset temperature on the remote control
12. Operating current lt Setup value Reduce compressor speed Yes Capacity control continues Outdoor temp 18SAV E 135 2 185AV2 E 45 40 16 11 A OIO 15 5 C 10 5 C 38 8 77A 6 30A 6 30A 8 47A 1 The input current of the outdoor unit is detected in the inverter section of the outdoor unit 2 According to the detected outdoor temperature 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 10SAV2 E 6 30A 18SAV E 13SAV2 E 1 2 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 lt 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
13. d x 1 E H 1 1 H m uuu mnuuamuumuuuumankhkuuum pes Io E E E Alphanumeric characters are used for the check codes 5 is 5 B 6 Ais bisB te is C d is D 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 or 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 gt d gt E gt ji The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check codes HH to 33 as shown in Table 11 4 1 Press ONY or OFF Y 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 e 7F is indicated on the display of the remote control Press 5 button to release the service mode The display of the remote controller returns to as it was before service mode was engaged Fig 11 4 1 79 11 4 2 Caution at Servicing 1 After servicing
14. 2 Operation Control of the compressor speed The speed control is performed as Keeps the compressor speed described in the left table based upon the discharge temperature Reduce the compressor speed Reduce slowly compressor speed If the operation is performed with lower speed than one commanded by the serial signal speed is slowly raised up to the commanded speed Operates with speed commanded by the serial signal 45 Operation flow and applicable data etc 14 Pulse This function controls throttle amount of the Modulating refrigerant in the refrigerating cycle value 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 position Compressor ON A 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 46 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
15. 3DV 3 shunt Discrete Vector control The control circuitry has an uninsulated construction Compressor 1 IGBT x 6 4 s _ Ek E Fan motor Amplifier FET 6 1 Amplifier Shared potential Fig 11 1 75 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 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 in
16. OS Remote control light receiver OPERATION button Unit operation ON OFF button turn off FILTER CHECK indicator MODE button Operation mode Auto CoolingHeating Aoto e ee CHILD LOCK function Press MODE button for 3 seconds It is possible to operate even when stopping To cancel CHILD LOCK function press MODE button for 3 seconds once again When CHILD LOCK function is activated 3 beeps will sound When press MODE button to cancel the function a beep will sound and then 3 seconds later 3 beep sound may occur The indicator button will be invalid while the child lock function is activated When press the button 1 beep will sound Operation with remote control during the CHILD LOCK function works This function is cancelled when the power supply is off or failure AIR OUTLET SELECT button Cooling Auto Upper amp Lower Upper Upper amp Lower e Dry upper only Heating Upper amp Lower Upper Upper amp Lower e On cooling operation whichever air outlet is set only Upper is used when the room temperature approaches the set temperature During stop operation Open Close the lower air outlet grille When the TEMPERATURE indicator display CL the lower air outlet grille will be in closed status When the TEMPERATURE indicator display OP the lower air outlet grille will be in open status TEMPERATURE button Up Setting temperature increase by 1 C 172 gt 18
17. ee 30 TEMPERATURE button Down Setting temperature decrease by 1 C 30 C 29 C e ee 17 C COOL and DRY indicator Blue HEAT indicator Orange AUTO indicator Green OPERATION indicator Green HI POWER indicator Green FLOOR indicator Orange TIMER indicator Yellow FILTER CHECK indicator Red TEMPERATURE indicator Blue AIR OUTLET indicator Green 64 10 INSTALLATION PROCEDURE 10 1 Installation Diagram of Indoor and Outdoor Units Do not allow the drain hose to get N slack Cut the piping hole sloped Slightly 50 mm or more 50 mm or more TIT omm a Filter 2 Batteries ES Make sure to run the drain hose sloped downward _ The auxiliary piping can be T connected to the left rear left rear right right bottom right or bottom 2 left Shield pipe wr 2 Right Wireless remote control Pan head 2 A wood screw Remote control holder YA Rear right Zu Left Bottom right Rear teft V Bottom left E PPP og Vinyl tape Apply after carrying out a drainage test Insulate the refrigerant pipes separately with insulation not together g og Bas screw sheet When installing the outdoor unit leave open in at least two of direction A B and shown in the figure
18. Fan guard MG aise MIHIR e 9 3 0 NN NS 55 rj Y Yo 9 8 8 2 Charging port 32 500 4 dia 4 5 embossment LLLA Fin guard Z view 600 Intake 2 dia 11 x 14U shape hole a 2 2 250 or more Intake gt o A 9 100 ormore 1 CL hee Minimum distance from wall 200 or rd OLE Outlet 2 dia 11 x 14 long hole Mounting dimensions of anchor bolt 19 2 Connecting pipe port Pipe dia 6 35 Connecting pipe port Pipe dia 12 7 Outside line 11 of product Detailed B leg part When iastalling the outdoor unit leave open in at least two of directions A B C and D shown in the figure 5 WIRING DIAGRAM COMPRESSOR C 7 yayi RED P04 CN300 hayag 7 WIJ POS wHi 215 BLK Pos 0200 205 Q300 305 TTL RED 7 ISI SE 25 P C BOARD E 1 n d P25 Gol MCC 5009
19. Lead connected to compressor Disconnect the connector 3P Lead connected to reactor Disconnect the connector 2P 2 Connectors x7 CN300 Outdoor fan motor white See Note CN701 4 way valve 2P yellow CN600 TE sensor 2P white CN700 PMV 6P white CN603 TS sensor 3P white CN601 TD sensor 3P white CN602 TO sensor 2P white These connectors have a disconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the P C board base Remove the heat sink and control board assembly while keeping them screwed together NOTE Disengage the four claws of the P C board base hold the heat sink and lift to remove it 3 Remove the two fixing screws used to secure the heat sink and control board assembly 4 Mount the new control board assembly When mounting the new control board assembly ensure that the P C board is inserted properly into the P C board support groove 106 Remarks CN603 CN601 CN600 CN700 CN602 CN300 CN701 CN600 and CN603 are connectors with locking mechanisms as such to disconnect them they must be pressed in the direction of the arrow while pulling them out board base P C board Part name Side cabine
20. Remarks anti turn Coil anti turn loek 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 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 118 Minus screwdriver Hooking claw t Part name Procedure Remarks TE sensor Outdoor heat exchanging temperature sensor Attachment With the leads pointing downward and the sensor leads pointing in the direction shown in the figure install the sensor onto the straight pipe part of the condenser output pipe Detail C for RAS 18SAV E TS sensor Suction pipe temperature sensor 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 TD sensor Discharge pipe temperature sensor Attachment With its leads pointed downward install the sensor onto
21. ___ CN801 uu CN21 17213721516 Stepper motor Vertical air flow louver 1X1 CN602 EVV EK BLU 111 Heat Exchanger Sensor NVW Main YEL 212 2 52 A am 343 1313 is a A 5068 YEL 2 YEL ree Desv O 5 loo GO Heat Exchanger Sensor NANA SER DC12V O WEL 71 TCJ T 9 Fuse F01 Dc29v o 9 BLK lt Log VV 8 E loo Thermo Sensor dra lt n 7 0 Do 00 TA OU 1 17 5 Ap owe Stepper motor BENE s 5 i REDI WHI Dine e YEL 212 CN201 CN261 CN401 WHI WHI WHI RED jo 2 a EES AE 5 ONE Color indication 167574731771 YEL YELLOW 562526 BLK BLACK i g al RED RED CN51 3 2111 91 7161514131211 BLU BLUE WH 000000 Bin P 5 WHI WHITE i Wireless Unit j ORG ORANGE Assembly IDEMOTOR GRN amp YEL WP 024 M Fan Motor GREEN amp YELLOW 20 5 2 RAS B18UFV E RAS 18SAV2 E COMPRESSOR L
22. Diagnosis Process flowchart Contents Summary Check winding resistance between phases of compres sor and resistance between outdoor frames by using a tester Replace control Is not grounded OK if 10M or more board assembly Is not short circuited OKif0 51 0 57 between windings Check by a digital tester Check AT 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 P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the P C board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the P C 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 P C 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 perip
23. FIXING PLATE VALVE RIGHT CABINET ASSEMBLY BODY PMV 31 HOLDER SENSOR TE For PIPE OD 6 35 mm 32 HOLDER SENSOR TD For PIPE OD 8 00 mm 33 HOLDER SENSOR TS For PIPE OD 12 7 mm Location Part 43763332 43758306 43720319 43121375 43747001 43797001 43149335 43746343 43763320 43763319 43179305 43T39333 43763318 43763317 43763323 43719331 123 Description COIL PMV REACTOR Made in Thailand PROPELLER FAN Made in Thailand FAN MOTOR NUT FLANGE Made in Japan NUT RUBBER CUSHION Made in Malaysia 4 WAY VALVE 4 WAY VALVE COIL ASSEMBLY HOLDER SENSOR Made in Thailand DRAIN NIPPLE MOTOR BASE CONNECTION PLATE HOLDER SENSOR Made in Japan HOLDER SENSOR Made in Japan HOLDER SENSOR Made in Japan FIN GUARD Made in Thailand 13 5 P C Board Layout RAS 10 13SAV2 E 702 706 Air Nr Er ei 5 y TE Sensor 06 j red 41k 5 Ee Arma TU TS Sensor 06 707 TD Sensor 04 TO Sensor O6 Location Location Description Description No 43T62320 HEATSINK Made in Thailand 705 43 60377 TEMPERATURE SENSOR 43T69780 PC BOARD FOR RAS 10SAV2 E 706 43T50304 SENSOR HEAT EXCHANGER 43T69815 PC BOARD FOR RAS 13SAV2 E Made in Thailand 43T60392 TERMINAL 5P 707 43762313 BASE PLATE PC 43T60326 FUSE Made in Thailand 124 13 6 P C Board Layout RAS 18SAV2 E iB 704 BN 702 TE Sensor 6 E TT iA TS Sensor O6
24. Pan speen RAS B13UFV RAS B18UFV level HEAT Fan speed Air flow rate Fan speed Air flow rate Fan speed Air flow rate 666 642 570 540 486 426 426 366 324 300 300 300 300 282 198 35 Operation flow and applicable data etc Description 3 Outdoor fan motor control 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 16 stages for reasons of controlling 1 The operation command sent from the remote controller is processed by the indoor unit controller and transferred 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 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 YES OFF status of fan motor continues Fan motor
25. 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 Operation flow and applicable data etc Description 15 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 Cleaning 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 T
26. and remove the fan guard 2 Attachment 1 Insert claws of the fan guard in the holes of the front cabinet Push the hooking claws 9 positions by hands and fix the claws Check that all the hooking claws are fixed to the specified positions 109 S3 a Minus screwdriver Hooking claw t Part name Procedure Remarks TE sensor outdoor heat exchanging temperature sensor Attachment Install the sensor onto the straight pipe part of the condenser output pipe Sensor lead Straight Part a KK gt Arrow D h NS A A E Sensor lead Detail C for 10k Detail C for 13k TS sensor Suction pipe temperature sensor Attachment Install the senser onto the straight pipe part of the suction pipe Be careful for the lead direction of the sensor Detail A TD sensor Discharge pipe temperature sensor TS sensor for 10k Attachment With its leads pointed upward install the sensor onto the vertical straight pipe part of the discharge pipe TO sensor Outside air temperature sensor Attachment Insert the outdoor air temperature sensor into the holder and install the holder onto the heat exchanger Detail B TD sensor for 10k TO sensor holder Detail A Detail B Arrow D TS sensor for 13k TD sensor for 13k TO sensor CAUTION During the installation work and on its completion take care not to damage the coverings o
27. 2 0 Table 3 2 5 Flare and flare nut dimensions for R410A Nominal Outer diameter Thickness Dimension mm Flare nut width diameter mm mm B 11 Table 3 2 6 Flare and flare nut dimensions for R22 Nominal Outer diameter diameter mm Thickness Dimension mm Flare nut width mm B dis 0 gs Fig 3 2 2 Relations between 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 Nem kgfecm 14 to 18 140 to 180
28. 4 way valve STF 01AJ646A1 AC220 240V 22 7 REFRIGERANT CYCLE DIAGRAM 7 1 Refrigerant Cycle Diagram RAS B10UFV E RAS 10SAV2 E RAS B13UFV E RAS 13SAV2 E INDOOR UNIT T1 Temp measurement Indoor heat exchanger Max 20m Min 1m Chargeless 15m Charge 20g m P Pressure measurement Deoxidized copper pipe m Gauge attaching port Thick dia 6 35mm Allowable height difference 10m Allowable pipe length Vacuum pump connecting port Thickness D 8mm ee Sons Deoxidized copper pipe Sectional shape Outer dia 9 52mm of heat insulator Thickness 0 8mm Strainer 4 way valve valve at liquid side DA89X1C 23FZ2 TS Outdoor heat exchanger EE Pulse Modulating Cx T2 Temp measurement Propeller fan Refrigerant amount un di LI 1 L 1 1 Compressor 1 1 1 LI I 1 OUTDOOR UNIT NOTE W Gas leak check position Refrigerant flow Cooling Refrigerant flow Heating NOTE The maximum pipe length of this air conditioner is 20 m 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 ED 7 2 Refrigerant Cycle Diagram RAS B18UFV E RAS 18SAV E RAS B18UFV E RAS 18SAV2 E INDOOR UNIT Indo
29. 5 YEL P24 2 616 es paal R220 R320 BBN WA eN 414 YEL p22 P21 E R219 R319 CN700 313 PMV 4 x AA XA 212 PUN BRW P20 arm An 35 PULSE MOTOR VALVE 103 FUSE L01 VARISTOR 315 YEL T3 15A t P34 AC250V 2 gt DB01 ee V MED rt qm CN603 4 X1 C v3 Ew 1 auction PIPE 75 C12 C14 ABSORBER iz 7 TEMP SENSOR POWER t 4 CN602 BA RELAY Sets VARISTOR TO Kewl EURED OUTDOOR P19 FUSE 313 TEMP SENSOR ORN DBO2 el els AC250V 2T P1B POS POT P02 111 Cw 191 ORNT BLK WHI E md raa AT P11 I I RELAY coiscHARGE PIPE xm XD s TEMP SENSOR REACTOR rn 22608 fe T CN600 44 Ow 6 141 x Q404 CONDENSER PIPE TEMP SENSOR P32 CN701 P31 TP30 117 EDE 1 Ll PUR YEL COIL i COLOR IDENTIFICATION 5 FOR Dee BLK BLACK WHI WHITE CS away i POWER BLU BLUE BRW BROWN f VALVE SUPPLY RED RED ORN ORANGE 220 240V 50Hz GRY GRAY YELYELLOW i ed 220 230 60Hz PNICPINK PUR PURPLE i 77 717 77 52 77 tous i zm es 22 e CLE 4 1 AQ EN Outdoor Terminal Block 37271 Q3 1 Indoor Terminal Block Heat Exchanger GRN amp YEL POWER SUPPLY From outdoor unit Motor Base 10 220 240 50Hz GRNaYEL SHEET 15 220 230 60Hz 7j BLK 501 CN03
30. 5 3 Remote Control A B Selection To separate using of remote control for each indoor unit in case of 2 air conditioners are installed nearly Remote Control B Setup 1 Push and hold chk button on the Remote Control by the tip of the pencil 00 will be shown on the display MODE 2 Press during pushing B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control 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 TOSHIBA B Display A8 00 Display nri vege Ou PRESET FAN KON Y XN Unit B setup Press and hold MODE button for more than 20 seconds When A setup changed to B setup 5 beeps will sound and operation lamp blinks for 5 seconds When B setup changed to A setup 5 beep will sound 10 5 4 Test Operation To switch the TEST RUN COOL mode press OPERATION button for 10 seconds The beeper will make a short beep 10 5 5 Auto Restart Setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure Information The product are shipped with Auto Restart function in the off position Turn it on as required How to set the Auto Rest
31. 9 Lower air outlet louve control 9 42 10 Upper air outlet louver control 43 Vids EE 44 12 Test OperatloDi dese etae rebel erre annen an ee 45 13 Discharge temperature control tU doct de rne me roe tenere 45 14 Pulse Modulating valve P M V control 42240 0000 46 15 Selt Clesning eie ee aa ta ve aen ete arabe 47 16 Selt Cleaning function release 1 1 2222 4 12004 2 41 tret 48 17 Remote A or B selection 49 18 QUIE MOE o Lat tante Ee Bea Eee EE I A REI E 50 19 COMFORT S EE P err aote rri ai per nd x d Red FR OFERTA REDE he dann 50 20 Short IME aas teert tv pev tea aA ote CUR Ox P COP d ehe 50 21 OnesTouch Gomfort red a a EXER PCR EO Ee av usu cera der t 51 22 HIEPOWERIMIOGOO zoenen ce eot pde ira bir ern De 51 23 FIETER IndiCatol eneen a Hp E Ete ea 51 24 Set temps correction wiede itn rear a dre dc Enea eai eee ghe S 52 25 Outdoor Quiet control nonnen oe nnn 53 Auto Restart F neHON ds ancl cede teens 55 9 3 1 How to Set the Auto Restart Function sss 55 9 3 2 How to Cancel the Aut
32. a wet cloth when needed No benzine thinner polishing powder or chemically treated duster 59 16 SELF CLEANING OPERATION COOL AND DRY OPERATION ONLY Cleaning operation This function is used to dry the inside of the air conditioner to reduce te growth of mold etc indide the air conditioner e When the unit shuts down after having operated for 10 or more minutes in the cooling or dry mode the cleaning operation is started automatically and the TIMER indicator on the nuit s display panel turns on Cleaning operation duration e The cleaning operation lasts for 30 minutes if the unit has been operating in the cooling or dry mode for 10 minutes or more Note e SELF CLEANING operation is default setting from factory e How to cancel SELF CLEANING operation Press and hold MODE button on operation panel for more than 10 seconds less than 20 seconds When canceling 4 beeps sound e How to activate SELE CLEANING operation Press and hold MODE button on operation panel for more than 10 seconds less than 20 seconds Then 4 beeps will sound and operation lamp will blink for 5 seconds 17 OPERATION AND PERFORMANCE 1 Three minute protection feature To prevent the unit from being activated for 3 minutes when suddenly restarted or switched to ON Preheating operation Warm up the unit for 5 minutes before blowing warm air Warm air control When the room temperature reaches the set temperature the fan speed i
33. are as described below Outdoor Combined outdoor unit Indoor unit model name ee outdoor unit RAS 4M27GAV E1 O RAS 5M34UAV E outdoor unit Combination available X Combination unavailable This service manual describes about B UFV E series indoor units only For the multi split outdoor unit to be combined refer to the service manual Outdoor unit File RAS M14GAV E A05 009 1 RAS M18GAV E 2 2 Operation Characteristic Curve lt Cooling gt 10 T T T T T g i 4 TY MS jus ace diete Current A 1 RAS B18UFV E 1 0 10 20 30 40 50 60 70 80 90 100 110 120 Compressor Speed rps 2 3 Capacity Variation Ratio According to Temperature lt Cooling gt 105 100 95 90 85 80 75 Capacity ratio 70 65 Capacity ratio 100 2 5kW RAS B10UFV E 3 5KW RAS B13UFV E 5 0KW RAS B18UFV E 60 Indoor air flow High Pipe length 5m 10k 13k 55 50 32 Outdoor temp C RAS B10UFV E RAS B13UFV E Conditions Indoor DB27 C WB19 C 7 5m 18k 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Current A Heating Capacity ratio lt Heating gt 10 RAS B18UFV E lt Heating gt 120 100 80 60 40 20 30 40 50 60 70 80 90 100 110 120 Compressor Speed rps Capacity ratio 100 3 2kW RAS B10UFV E 4 2kW RAS B1
34. 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 provide 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 for OFF timer operation Press CLR to cancel the sleep timer operation 15 FILTER RESET Firstly turn off the circuit breaker FILTER lamp lights on the filter must be cleaned To turn off the lamp push OPERATION button on the indoor unit or the FILTER button on the remote control Note The filter indicator turns on after turns on after about 1000 hours Indoor Unit and Remote Control e Clean the indoor unit and the remote control with
35. bottom plate of the outdoor unit before installing it 320 mm 108 mm 125 mm 28 mm S Air inlet m lt 0 AA ex3 E 4 E Dn ge D Es y Air outlet 90 Fig 10 2 1 600 f Drain outlet Drain nipple and cap water proof are packed in outdoor unit When using a multi system outdoor unit is used refer to the installation manual provided with the model concerned 66 10 2 2 Accessory and installation parts Part No Part name Q ty Part No Part name Q ty Part No Part name Q ty Q Installation plate x 1 Remote control holder 1 Q gt Flat head wood screw 3 1x161x2 Wireless remote control x 1 Filter RB A620DE x 2 Insulation sheet x 1 8 9 Battery x 2 Qumm Mounting screw 4x 25 1 8 CC qp Drain nipple x 1 Others Name Owner s manual Installation manual 67 Cap water proof x 2 The part marked with asterisk is packaged with the outdoor unit 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 inc
36. button on remote controller YES Unit operates normally Is fuse FO1 of indoor control board blown 101 and T101 are defective indicated on rear of Does transmission mark on remote controller flash normally and is its signal transmitted properly Parts R01 R02 DBO1 C01 indoor control board normal Is DC310 340V Parts of a power supply circuit Check Item Considerable principle cause Measures Item by symptoms Remote controller is defective Refer to 5 Troubleshooting for remote controller YES Does fan motor connector between CN301 short circuit Microcomputer is defective Replace main P C board defective Replace fan motor Be sure to disconnect the motor connector CN301 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 lt Confirmation procedure gt Turn on power supply Does OPERATION indicator flash YES NO Is wired correctly to white and black lead wires of terminal block To item of Power supply is not turned on 83 3 Only the indoor motor fan does not operate lt Primary check gt 1 Is it possible to detect the power supply voltage
37. for louver base 2 pcs 2 D Pull the upper part of the louver base to upward 2 Take off the louver base by pull out in the front direction lt Attention for louver base assemble gt Insert the rib of the louver base into the slot of back body same as the picture 1 Remove screws for bell mouth 4 pcs 1 Remove screws for drain pan 2 pcs 2 Remove screws for damper base 2 pcs 99 Remarks Screws for louver base 2 pcs Back slot Louver base rib i 7 Screws for bell mouth RES Screws for damper base 2 pcs Screw for drain pan Screw for drain pan Turbo fan Fan motor Fan motor Procedure 1 Turn the flange nut M10 in the counter clockwise direction and take it off 2 Pull out the turbo fan from the fan motor shaft lt Attention for turbo fan assemble gt The tightening torque of the flange nut is 5N m 1 Remove screws for motor holder and take off the motor holder 2 Take off the lead cover lt Attention for motor holder assemble gt 1 Arrange the earth lead and fan motor lead 2 Adjust the motor axis to the center of the motor holder then fix screws 4 pcs A method to take off a fan motor in a condition taking on a heat exchanger 1 Take off pipe holder and remove screws for heat exchanger refer to 2 Remove screws for the bell mouth refer to 100 Remarks Sc
38. 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 86 11 5 2 Wiring Failure Interconnecting and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between and Q 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 E S5277G or equivalent G or J type S5277G Diode with rated voltage of 400V White 2 or more is acceptable D Terminal block Tester Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 7 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes after operation started and 10 minutes or more are required to restart the unit Gas circulation amount is down Measure gas pressure Thermo operation of compressor Gas shor
39. 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 Operation mode and Com pressor revolution indoor heat exchanger tem perature the outdoor unit controller monitors the input current to the inverter and performs the followed operation within the range that current does not exceed the allowable value Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor tempera
40. power is off Press the OPERATION button located in the display of the indoor unit 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 OPERATION button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The operation indicator is on After approx three seconds The unit beeps three times The operation indicator flashes and continues to operate for 5 seconds If the unit is not required to operate at this time press OPERATION button once more or use the remote control to turn it off Press OPERATION button for more than The unit is in operation The operation indicator is on three seconds Less than 10 seconds The unit stops operating The operation indicator is turned off After approx three seconds The unit beeps three times The operation indicator flashes for 5 seconds If the unit is required to operate at this time press OPERATION button once more or use the remote control to turn it on While the filter check indicator is on OPERATION button has the function of filter reset betton 55 9 3 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as f
41. press the 5 button to return to the normal mode 2 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 3 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 Table 11 4 1 Block distinction Operation of diagnosis function Air Judgment and action Cause of operation conditioner Remarks status Check Block Indoor PC Short circuit or discon Operation Displayed when Check the room temp sensor board etc nection of the room continues error is detected When the room temp sensor is temperature sensor normal check PC board TA sensor Being out of place Operation Displayed when Check heat exchanger sensor disconnection short continues error is detected When heat exchanger sensor is circuit or migration of normal check board heat exchanger sensor TC sensor Being out of place Operation Displayed when Check heat exchanger sensor disconnection short continues error is detected When heat exchanger sensor is circuit or migration of normal check board heat exchanger sensor TCj sensor Lock of indo
42. secure the motor base 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 part 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 Concave section 404 Part name Inverter assembly Procedure 1 Perform work of item 1 in 2 Remove screw ST1T 4 x 10L 2 pcs of the upper part of the front cabinet If removing the inverter cover in this condition P C board can be checked If there is no space above the unit perform work of 1 in Be careful to check the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting polarity by discharging resistance approx 100 40W or plug of soldering iron to terminals a of the C14 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 760pF or 500uF on P C board Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage remains according to trouble type in some cases This capacitor is one with mass capa
43. the charge hose The charge hose connecting part has two ports one for conventional refrigerant 7 16 UNF 20 threads per inch and one for R410A If the vacuum pump oil mineral mixes with R410A a sludge may occur and damage the equipment Vacuum pump adapter Gas leakage 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 and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hose s port size 68 10 3 Indoor Unit Mounting the installation plate and screw position 10 3 1 Installation Place 700 Unit mm A place which provides the spaces around the indoor unit as shown in the diagram A place where there are no obstacles near the air inlet and outlet e A place which allows easy installation of the piping to the outdoor unit e A place which allows the front panel to be opened CAUTION Direct sunlight to the indoor unit s wireless receiver should be avoided e The microprocessor in the indoor unit should not be too close to RF noise sources For details see the owner s manual Remote control Q Am A place where there are no obstacles such as a curtain that may block the Ed signal from the remote contro
44. 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 e during pushing CHK e will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control B is memorized Note 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has not display 3 Default setting of Remote Control from factory is A Display 00 Display Indoor Unit B Setup 1 Press and hold Mode button for more than 20 seconds 2 After holding 20 seconds the air conditioner beep 5 times without any blinking of display 3 After releasing Mode button Indoor Unit B is set Note 1 After holding 10 seconds the air conditioner beep 4 times but continue to hold Mode button 2 Repeat above step to reset Indoor Unit A After holding 20 seconds the airconditioner beep 5 times and operation display blinks for 5 seconds 49 Description 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 controll signal from being received simultaneously by both units thus preventing both units from operating Operation The indoor unit on which the remote controll
45. 1 Outdoor heat exchanger temp sensor error Operation continues 1 Check outdoor temp sensor TO 2 Check P C board Outdoor board Compressor drive output error Compressor error lock missing etc Break down All off 81 Displayed when error is detected 1 Check power voltage 220 230 240 V 10 Overload operation of refrigera tion cycle Check installation condition Short circuit of outdoor diffuser When 20 seconds passed after start up position detect circuit error occurred Replace compressor Trouble on P M V Block distinction Operation of dia gnosis function Check code Block Others including compressor Cause of operation Return serial signal has been sent when operation started but it is not sent from halfway 1 Compressor thermo operation Gas shortage Gas leak 2 Instantaneous power failure Air conditioner status Operation continues Remarks Flashes when trouble is detected on return serial signal and normal status when signal is reset Judgment and action Repeat Start and Stop with interval of approx 10 to 40 minutes Code is not displayed during operation Supply gas Check also gas leak Unit operates normally during check If return serial signal does not stop between indoor terminal block 2 and 3 replace inverter P C board If signal stops between ind
46. 1 7 1 Preparation Operation Measure ment Check Measure ment 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 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 400WV x 3 760uF 400WV x 3 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 s not winding between D or O opened or short circuited Is not frame grounded with 89 Summary If fuse was blown be sure to check the electrolytic capacitor and diode block 01 Connect discharge resistance approx 100 40W or soldering iron plug between terminals of the electro lytic capacitor 500uF or 760uF of C14 with printed CAUTION HIGH VOLTAGE on board Discharging position Discharging period 10 seconds or more Plug of soldering iron OK if 500pF 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 77 Should be 10M or more
47. 3 22316 43 22315 43 63333 43 62339 43 49340 43 82316 43 66309 43 83003 Description HOLDER SENSOR Made in Japan DRAIN GUIDE UP DRAIN GUIDE DOWN SHIELD PIPE DRAIN PAN ASSY HOSE DRAIN Made in Thailand DAMPER ASSY UPPER LOUVER ASSY HORIZONTAL LOUVER DISPLAY BASE TERMINAL COVER ASSY PIPE HOLDER PLATE MOUNTING WIRELESS REMOTE CONTROLLER HOLDER REMOTE CONTROL Made in Thailand 13 2 Indoor Unit E Part 8 Sa 406 407 405 403 402 Location Description Description No 43T60406 TERMINAL 3P 406 43T69865 PC BOARD ASSY WRS LED 43750321 SENSOR THERMOSTAT 407 43T69866 PC BOARD FOR RAS B10UFV E 43750332 SENSOR HEAT EXCHANGER 407 43T69867 PC BOARD FOR RAS B13UFV E 43750333 SENSOR HEAT EXCHANGER 407 43T69868 PC BOARD FOR RAS B18UFV E 43T62003 CORD CLAMP Made in Thailand 121 13 3 Outdoor Unit RAS 10 13SAV2 E Location No 1 em 43T00468 43T00459 43742327 43700452 43719329 43T19330 43T62325 43741420 43743410 43743434 43746332 43746331 43747331 43747332 FRONT CABINET LEFT CABINET Made in Thailand BASE PLATE ASSEMBLY Made in Thailand UPPER CABINET Made in Thailand FAN GUARD PACKED VALVE COVER ELECTRIC PART COVER COMPRESSOR Made in China CONDENSER ASSEMBLY FOR RAS 10SAV2 E CONDENSER ASSEMBLY FOR RAS 13SAV2 E VALVE PACKED 6 35 DIA Made in Thailand VALVE PACKED 9 52 DIA Made in Thailand B
48. 3UFV E 5 8kW RAS B18UFV E Condition RAS B10UFV E RAS B13UFV E RAS B18UFV E Indoor DB20 C Indoor air flow High Pipe length 5m 10k 13k 7 5m 18k Outdoor temp 3 REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC R410A which does not damage the ozone layer The working pressure of the new refrigerant R410A is 1 6 times higher than conventional refrigerant R22 The refrigerating oil is also changed in accordance with change of refrigerant so be careful that water dust and existing refrigerant or 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 cyc
49. 42 to 500 Brown Blue 42 to 500 1 W a Es COM R COM 5 R se 3 ao rreren em Y BR BE COM 2 5 4 Lan 93 Checking procedure Pulse motor valve coil Model CAM MD12TCTH 2 RAS 13SAV2 E RAS 10SAV2 E CAM MD12TCTH 2 Position Resistance value Gray White 43 to 490 Gray Orange 43 to 490 Red Yellow 43 to 490 Red Blue 43 to 490 Outdoor temperature sensor Disconnect the connector and measure the resistance value with tester TO discharge temperature Normal temp sensor TD suction temperature sensor TS Temperature 10 20 25 30 40 50 outdoor heat exchanger temperature sensor TE TD kQ 100 64 50 41 27 18 TO TS TE 20 7 12 6 10 0 7 9 45 11 9 5 Checking Method for Each Part Part name Checking procedure Electrolytic capacitor Turn OFF the power supply breaker For boost smoothing 2 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 C12 C13 C14 Case that product is good Pointer swings once and returns slowly When performing test once again under another MCC 5009 polarity the poi
50. E DNUS MIO TE YALNdNOD ONDIIN K gt J00pu 2 09 A0 c 0cc ZHOS 0760 0 0 i LINN HOOONI 404 27 9 OPERATION DESCRIPTION 9 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner which uses DC motor for the indoor fan motor and the outdoor fan motor And the capacity proportional control compressor which can change the motor speed 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 or indoor unit display buttons 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 o
51. EGISTORS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLATION IN ANOTHER PLACE BE VERY CAREFUL NOT TO ALLOW THE SPECIFIED REFRIGERANT R410A TO BECOME MIXED WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CIRCUIT IF AIROR ANY OTHER GAS IS 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 PERSONNEL 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 circuit An insufficient circuit capacity or inappropriate installation may cause fire When wiring use the specified cables and connect the terminals securely t
52. F OFF depend on presetting per room temperature Timer display Compressor CDU fan ON or OFF OFF depend on presetting per room temperature gt Operation time Cool mode or dry mode Self Cleaning mode operation more than 10 mins operate 30 mins Automatically turn off Turn off by remote controller or timer off function 16 Self Cleaning How to cencel Self Cleaning function function release 7 cancel the Self Cleaning function proceed as follows Press and hold MODE button on opreation panel for more than 10 seconds less than 20 seconds After holding about 10 seconds the air conditioner beep 4 times without any blinking of display After releasing Mode button Self Cleaning function is cancelled How to set Self Cleaning function To set the Self Cleaning function proceed as follows Press and hold MODE button on opreation panel for more than 10 seconds less than 20 seconds After holding about 10 seconds the air conditioner beep 4 times and OPERATION display blinks 5 seconds After releasing Mode button Self Cleaning function is set 17 Remote A or B selection Operation flow and applicable data etc 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
53. ON 3 Fan lock NO YES Air conditioner Alarm OFF display 4 Motor operates as shown in the table below 10SAV2 E 13SAV2 E In heating operation 16 8 47 9 In cooling operation 13 8 31 7 Compressor speed rps 215 C TO lt 15 C lt 5 5 C lt 5 0 TO 215 C Compressor speed rps TO 238 C TO2 28 C TO215 C TO2 5 5 C TO2 0 C TO lt OC During ECO mode TO 238 C During ECO mode TO lt 15 C lt 5 5 C TO lt 5 5 TO lt 38 C When TO is abnormal 36 When TO is abnormal Operation flow and applicable data etc in cooling operation 503 Compressor speed rps lt 30 5 55 1 55 1 lt Lun Mr MAX 18 FE 5 19 ECO mode During ECO QUIET and 18SAV E 18SAV2 E TO gt 38 C Outdoor fan speed rpm 10SAV2 E 13SAV2 E 18SAV E 18SAV2 E 10SAV2 E 13SAV2 E 18SAV E 18SAV2 E 37 Operation flow and applicable data etc 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 4 Capacity control Indoor unit Room temp TA Remote controller Set
54. ONNET 6 35 DIA Made in Thailand BONNET 9 52 DIA Made in Thailand 31 HOLDER SENSOR TE For PIPE OD 6 35 mm 32 HOLDER SENSOR TD For PIPE OD 8 00 mm 33 HOLDER SENSOR TS For PIPE OD 9 52 mm Location 43T00448 43T00451 43746347 43763332 43746351 43720319 43721375 43747001 43797001 43749335 43746343 43763320 43763319 43779305 43739333 43763318 43763317 43763316 43719331 122 Description FIXING PLATE VALVE RIGHT CABINET ASSEMBLY BODY PMV COIL PMV REACTOR Made in Thailand PROPELLER FAN Made in Thailand FAN MOTOR NUT FLANGE Made in Japan NUT RUBBER CUSHION Made in Malaysia 4 WAY VALVE 4 WAY VALVE COIL ASSEMBLY HOLDER SENSOR Made in Thailand DRAIN NIPPLE MOTOR BASE CONNECTION PLATE HOLDER SENSOR Made in Japan HOLDER SENSOR Made in Japan HOLDER SENSOR Made in Japan FIN GUARD Made in Thailand 13 4 Outdoor Unit RAS 18SAV2 E Location No 1 Part Description No 43T00468 43T00459 43142327 43700452 43719329 43719330 43762325 43741430 43743451 43746358 43746355 43747331 43147333 43T00448 43T00451 43146347 FRONT CABINET LEFT CABINET Made in Thailand BASE PLATE ASSEMBLY Made in Thailand UPPER CABINET Made in Thailand FAN GUARD PACKED VALVE COVER ELECTRIC PART COVER COMPRESSOR CONDENSER ASSEMBLY VALVE PACKED 6 35 DIA VALVE PACKED 12 7 DIA H4 BONNET 6 35 DIA Made in Thailand BONNET 12 70 DIA Made in Thailand
55. RATION Green FILTER Orange Protective circuit operation for outdoor P C board Flashing display 5 Hz M OPERATION Green TIMER Yellow Protective circuit operation for others FILTER Orange including compressor Flashing display 5 Hz NOTES 1 The contents of items and a part of item 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 78 11 4 Self Diagnosis by Remote Controller Check Code 1 2 If the lamps are indicated as shown B to E in Table 11 3 1 execute the self diagnosis by the remote controller 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 The timer lamp usually flashes 5Hz during self diagnosis 11 4 1 How to Use Remote Controller in Service Mode foy B TOSHIBA PRESET FAN ONE TOUCH MODE COMFORT QUIET SLEEP O O SWING FIX Hi POWER ECO FLOOR a E H 1 E H
56. RY Note When there is an abnormality in the product abnormal code 2 digits will be displayed on the unit display panel Please contact the dealership In case of multiple connection e Check whether the operation mode is different from what has been selected for the units in the other rooms The following combinations of operations cannot be performed COOL and HEAT DRY and HEAT e Select the same operation mode as for the other rooms REMOTE CONTROL A B SELECTION To separate using of remote control for each indoor unit in case of 2 air conditioners are installed nearly Remote Control B Setup 1 Push and hold CHK button on the Remote Control by the tip of the pencil 00 will be shown on the display 2 Press MODE during pushing CHK B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control 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 Unit B setup Press and hold MODE button for more than 20 seconds When A setup changed to B setup 5 beeps will sound and operation lamp blinks for 5 seconds When B setup changed to A setup 5 beeps will sound ADJUSTING BRIGHTNESS OF UNIT DISPLAY PANEL 1 Press and hold AIR OUTLET SELECT button then press MODE button for 3 times All lamp of the unit display panel will be switched on At that time pl
57. TOSHIBA FILE NO SVM 10044 SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Outdoor Unit Indoor Unit lt Console Heat Pump Type gt lt Heat Pump Type gt RAS B10UFV E RAS 10SAV2 E RAS B13UFV E RAS 13SAV2 E RAS B18UFV E RAS 18SAV E RAS 18SAV2 E HFC April 2010 10 11 12 13 CONTENTS 3 SPECIFICATIONS ite ase deu dro Rino ctr ta estas 6 REFRIGERANT RA410A ooh toot nue 9 CONSTRUCTION VIEWS 11 once eai 17 WIRING DIAGRAM ena 20 SPECIFICATIONS OF ELECTRICAL PARTS 22 REFRIGERANT CYCLE DIAGRAM 24 CONTROL BLOCK DIAGRAM 4 27 OPERATION DESCRIPTION zz osseenenrensenogdnasrnndenmedeleanonannneosendnndnne 29 INSTALLATION PROCEDURE roii iiie ooi i etienne 62 HOW TO DIAGNOSE THE TROUBLE eee 4 76 HOW REPLACE THE MAIN 2 98 EXPLODED VIEWS AND PARTS LIST 122 1 SAFETY PRECAUTIONS SAFETY PRECAUTIONS The important contents concerned to the safety are described on the product itself and on this Service Manual Please read this Service Manual after understanding the described items thoroughly in the following contents Indications IIlust
58. Tightening torque of torque wrenches available on the market kgfecm 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 12 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 pressure 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 eq
59. WE WF as shown in Fig 6 Min air flow rate control 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 TA Tsc TC 46 46 45 45 Line approximate SUL with TC 5 33 33 32 32 6 4 4 7 4 4 Stop Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting 4 e No limitation while fan speed MANUAL mode is in stability 2 p ed 15 i 22 i P A When Tsc 2 24 A is 9 when Tsc lt 24 Ais Tso Tsc Set value 3 Fan speed M x 3 5 L 4 Fan speed M x 4 5 L Calculated with linear approximation from M and L 5 Fan speed H M x 1 5 M 6 Fan speed H M x 2 5 M 7 Fan speed H M x 3 5 M 8 Fan speed M x 4 5 M Calculated with linear approximation from H and M cd In starting and in stability Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation start 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 Set temp 3 5 C Table 2 Indoor fan air flow rate Heating
60. all the front panel and grille inlet CAUTION Be sure to refer to the wiring system diagram labeled inside the front panel e Check local electrical cords and also any specific wiring instructions or limitations lal i mM 8 i zug ls Terminal BIS 0 LAA block AN DS E 112 EL Screw Earth line Cord clamp E de Earth screw Earth line 3 ENEN Qo EE 10 mm 50 mm Stripping length of the connecting cable NOTE e Use stranded wire only e Wire type HO7RN F or 60245 IEC66 1 0 mm or more 70 Mounting directly on the floor 1 Fix the leg of indoor unit on the floor with 2 mounting screws 2 Fix the upper part of indoor unit on the wall with 4 mounting screws Floor installation 6 screw 4 x 25L NOTE In case the plinth is fixed to the wall please make sure to cut out the slit on the left and right side of the main part Cut dot line area Installation on the wall 1 Fix the installation plate on the wall with 4 mounting screws 2 Hook the indoor unit on the installation plate 3 Fix the upper part of indoor unit on the wall with 4 mountin
61. and CN603 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective Connect the motor connector to the motor and turn on the power supply Start the unit the following condition 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 AC120V or higher voltage between red and black lead of the motor 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 91 The indoor fan motor is defective Protected operation of PC board The PC board is defective The connection of the motor connector is loose 11 9 2 Board Layout L B R252 02 E un 8 Dh eaf 2 of E GND 5V 1 Sensor characteristic table 100 TD Discharge temp sensor TA Room temp sensor TC TCJ Heat exchanger temp sensor TO Outdoor temp sensor TE Outdoor heat exchanger temp sensor TS Suction temp sensor Resistance value Temperature 92 11 9 3 Indoor Unit Other Parts Part name Checking procedure Room temp TA sensor Disconnect the connector and measure the resistance value with tester Hea
62. arket 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 flare nuts are as shown in Tables 3 2 3 to 3 2 6 below b Socket Joints Socket joints are such that they are brazed for connections and used mainly for thick pipings whose diameter is larger than 20 mm Thicknesses of socket joints are as shown in Table 3 2 2 Table 3 2 2 Minimum thicknesses of socket joints 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 prec
63. art 1 Press and hold OPERATION button on the indoor unit for 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 seconds 2 Press and hold OPERATION button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink e In case of ON timer or OFF timer are set it dose not activate 74 11 HOWTO 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 How to Check Simply the Main Parts 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 Ay CAUTION HIGH VOLTAGE The high voltage circuit is incorporated Be careful to do the check service as the electric shock may be caused in case of touching parts on the P C board by hand The new inverter 3DV inverter will be incorporated starting with this unit
64. autions 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 c Insertion of Flare Nut 10 d Flare Processing Make certain that a clamp bar and copper pipe have been cleaned By means of the clamp bar perform the flare processing correctly Use either a flare tool for 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 by using a gauge for size adjustment Fig 3 2 1 Flare processing dimensions Table 3 2 3 Dimensions related to flare processing for R410A A mm Outer diameter mm Thickness mm Nominal diameter Flare tool for R410A Conventional flare tool clutch type Clutch type Wing nut type 1 0 to 1 5 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 1 0 to 1 5 2 0 to 2 5 Table 3 2 4 Dimensions related to flare processing for R22 A mm Outer Thickness A diameter Flare tool for R22 Conventional flare tool mm mm Nominal diameter clutch type Clutch type Wing nut type 0 5 to 1 0 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 0 5 to 1 0 1 5 to
65. caf 4 Push TEMPERATURE button UP or DOWN to change set temp correction TEMPERATURE button 5 Release AIROUTLET SELECT button Set temp correction is memorized and set temp value is displayed on the TEMPERATURE indicator again Description 1 Purpose When the difference between the set temperature of the remote control and the room temperature is wide due to the installation condition etc the set temperature can be corrected 2 Description For example when set temp is 25 C but room temp is stable 27 C at cooling mode chage set temp correction Cooling from 0 to 2 C e Continue to push and hold AIR OUTLET SELECT button e Continue to push and hold AIROUTLET SELECT button 25 Outdoor Quiet control for only 1 1 outdoor unit Operation flow and applicable data etc As shown in the table the max revolution number of compressor can be reduced As the max number of revolution of compressor is restricted the rise up performance at the start time is weakened This function is disable with multi outdoor unit connecting RAS B10UFV E RAS B13UFV E RAS B18UFV E MODE Normal Normal Normal Normal Normal Normal rps rps rps rps rps rps Cooling 62 53 94 77 85 72 Heating 86 73 99 76 85 72 When air conditioner is on standby before setting lt How to set Outdoor Quiet control gt 1 Push and hold OPERATION b
66. changes and the characteristics of the equipment varies Cylinder without siphon Gauge manifold OUTDOOR unit JepuIijko uesa yoy Electronic balance Siphon Fig 3 4 2 3 5 Brazing of Pipes 3 5 1 Materials for Brazing 1 Silver brazing filler Silver brazing filler is an alloy mainly composed of silver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in adhesive strength do not use it for refrigerant pipes 15 REQUIREMENT 1 Phosphor bronze brazing filler tends to react with sulfur and produce a fragile compound water solution which may cause a gas leakage Therefore use any other type of brazing filler at a hot spring resort etc and coat the surface with a paint 2 When performing brazing again at time of servicing use the same type of brazing filler 3 5 2 Flux 1 Reason why flux is necessary By removing the oxide film and any foreign matter on the metal surface it assists the flow of brazing filler n the brazing process it prevents the metal surface from being oxidized By reducing the brazing filler s
67. city Therefore it is dangerous that a large spark generates if short circuiting between 4 Remove screw ST1T 4 10L 4pcs fixing the terminal part of inverter box to the main body 5 Remove the front cabinet by performing step 1in Q and remove the fixing screws ST1T 4 10L for securing the main body and inverter box 6 Remove various lead wires from the holder at upper part of the inverter box 7 Pull the inverter box upward 8 Disconnect connectors of various lead wires As each connector has a lock mecha nism avoid to remove the connector by holding the lead wire but by holding the connector 105 Remarks Inverter cover Soldered surface ee S LA 2 Plug of soldering 5 iron Discharging position Discharging period 10 seconds or more PC board Soldered surface A screw STIT 4 x 10L X 2 pe 2 Puteach leads the Y through the hole Put leads trough the hole V The connector is one with lock so remove it while pushing the part indicated by an arrow Be sure to remove the connector by holding the connector not by pulling the lead wire Part name Control board assembly Procedure 1 Disconnect the leads and connectors connected to the other parts from the control board assembly 1 Leads 3 leads black white orange connected to terminal block
68. ck 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 ON the operation indicator Green of the indoor unit flashes Description The operation indicator 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 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 mo
69. cuate the air in the connecting pipes using a VACUUM PUMP 4 Check gas leak connected points 5 Be sure to fully open the packed valves before operation Packed valve handling precautions Open the valve stem until it touches the stopper Once it is in contact with the stopper refrain from applying any more force than is necessary e Securely tighten the valve stem cap with torque in the following table Gas side 50 to 62 N m 212 70 mm 5 0 to 6 2 kgf m Hexagon wrench is required Gas side 33 to 42 Nem 09 52 mm 3 3 to 4 2 kgf m gf m NS Liquid side 14 to 18 Nem 26 35 mm 1 4 to 1 8 kgf m f 14 to 18 N m 2 Service port 1 4 to 1 8 kgf m 0 10 4 6 Wiring Connection en 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 Insert the power cord and the connecting cable fully into the terminal block and secure it tightly with screws 4 Use vinyl tape etc to insulate the cords which are not going to be used 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 eo 10 4 7 Electrical Work 1 The supply voltage m
70. d fan operation is automatic speed TIMER OPERATION Setting the ON Timer 1 on X Set the desired ON timer Press 2 Setting the OFF Timer Press oe Set the desired OFF timer 2 Press 6 Set the timer Press Set the timer 3 Press Cancel the timer Press Cancel the timer Everyday timer allows the user to set both the ON amp OFF timers and will be activated on a daily basis Setting Everyday Timer 1 Press ON Set the ON timer Press o 2 Press o Set the OFF timer Press button during the f 2 mark flashing During the every day timer is activation both arrows or amp are indicated Note Keep the remote control in accessible transmission to the indoor unit otherwise the time lag of up to 15 minutes will occur The setting will be saved for the next same operation 58 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
71. de 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 77 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 failure when power is ON OPERATION Green Which lamp Flashing display 5 Hz does flash Protective circuit operation for indoor P C board OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for connecting cable and serial signal system OPE
72. ds 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 or lower stop the indoor fan Finish of defrost operation Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 or higher 2 Temperature of outdoor heat exchanger is kept at 5 C or higher for 80 seconds 3 Defrost operation continues for 15 minutes Returning from defrost operation 1 Stop operation of the compressor for approx 50 seconds 2 Invert OFF 4 way valve approx 40 seconds after stop of the compressor 3 The outdoor fan starts rotating at the same time when the compressor starts 8 Air outlet selection AIR OUTLE gt 1 TASTsc 1 C Upper flow eL Operation flow and applicable data etc lt How to change air outlet selection gt 1 Operate the air conditioner and select cooling or heating mode Air outlet selection can t be changed at standby mode 2 Push AIR OUTLET SELECT button on the unit operation panel to change air outlet selection AIR OUTLET indication AIR OUTLET SELECT button TASTsc 1 5 and after 1hour running Description 1 Purpose 2 Description e In Cooling operation only lower flow can t be selected e In Dry mode operation bi flow and lower flow can t be selected In heating ope
73. e specified amount of refrigerant cannot be charged charge refrigerant bit b y bit in COOL mode 3 Do not carry out additional charging When additional charging is carried out if refrigerant leaks the refrigerant composition changes in the refrigeration cycle that is characteristics of the air conditioner changes refrigerant exceeding the specified amount is charged and working pressure in the refrigeration cycle becomes abnormally high pressure and may cause a rupture or personal injury Water heat exchanger unit Outdoor unit Refrigerant cylinder ia siphon Open close valve for charging Electronic balance for SE charging Service port Fig 3 4 1 Configuration of refrigerant charging 44 1 Be sure to make setting so that liquid 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 Gauge manifold cylinder Electronic balance OUTDOOR unit NOTE R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the composi tion of the charged refrigerant
74. e 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 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 m
75. e 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 ST1T O4 x 8L 5 pcs 3 Perform cabling of connecting cable and attach the wiring cover Place the wiring cover over the opening used to work on the con necting wires of the side cabinet and secure it using the 2 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 ST1T 4 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 112 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 Part name Procedure Remarks Front cabinet 1 Detachment 1 Perform step 1 in 2 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 pcs used to secure the front cabinet at the bottom and the fixing screws ST1T 4 x 8L 2
76. ease press and hold the AIR OUTLET SELECT button 2 Press and hold AIR OUTLET SELECT button on Unit display panel then press TEMPERATION button Up Down for select the desired brightness 3 Brightness will be settled when AIR OUTLET SELECT button is released Although the temperature indicator is switched off if press the temperature button up and down the set temperature will be indicated and then can adjust the temperature 10 seconds after stopped pressing the button the temperature indication will be switched off 61 4 stages of brightness can be changed Temperature indicator Other lamp Usual Usual Darkness Darkness Turn off Darkness Turn off Turn off CHANGE AIR OUTLET GRILLE ON STABLE TIME COOLING ONLY On cooling operation whichever air outlet is set only Upper is used when the room temperature approaches the ser temperature In case to keep pu down blowing operate as below Press and hold AIR OUTLET SELECT button for more than 10 seconds less than 20 seconds 4 beeps will sound then 1 indication at TEMPERATURE indicator will light up for 5 seconds For return to the former status press and hold AIR OUTLET SELECT button for more than 4 seconds once again In this time 4 beeps will sound then 0 indication at TEMPERATURE indicator will blinks for 5 seconds AIR INLET GRILLE MANTENANCE Wash the air inlet grille with water using the soft sponge or towel e Dry it wel
77. ective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN51 display PCB is defective Push 9 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 1 Check whether or not the com pressor operates 2 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 CN602 and CN603 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C 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 CN602
78. ed Judgment and action Even if trying operation again all operations stop immediately Replace PC board men Position detect circuit error or short circuit between windings of compressor All 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 l Current detect circuit error All off Displayed when error is detected Even if trying operation again all operations stop immediately Replace P C board N mn Being out of place disconnection or short circuit of the outdoor heat exchanger sensor TE or suction temp sensor TS All off Displayed when error is detected 1 Check sensors TE TS 2 Check board 4 i Disconnection or short circuit of discharge temp sensor All off Displayed when error is detected 1 Check discharge temp sensor TD 2 Check board Y Outdoor fan drive system error All off Displayed when error is detected Position detect error over current protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor Not displayed
79. efrigerant gas Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed very carefully when conducting checks since directly touching the parts on the control circuit board may result in electric shocks Part name Procedure Remarks Front panel 1 Stop operation of the air conditioner and turn off the main power supply 2 Grip the air inlet grille by two hands at the handle positions 3 Pull the air inlet grille as the arrow direction and remove the rope from the hook of front panel 4 Remove screws for front panel 4 pcs 4 Screws of front panel 4 pcs 96 Electrical parts Procedure 1 Remove screw for E box cover Box assembly E box 2 Remove screw for drain guide 4 pcs 3 Remove scre
80. ent preventive function Defrost operation function 30 Inverter Delay function of compressor reactivation Compressor Outdoor fan motor 4 way valve Pulse Modulating valve P M V Item Operation flow and applicable data etc 1 Basic 2 Cooling Heating operation operation The operations are performed in the following parts by controls according to cooling heating conditions 1 Receiving the operation ON signal of the remote controller the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit 2 At the indoor unit side the indoor fan is operated according to the contents of 2 Indoor fan motor control and the louver according to the contents of 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 y Indoor unit control Sending of operation command signal Indoor fan motor control Louver control Operation Hz Control Requierment Compressor revolution control Outdoor fan motor control 1 Operation Hz control Include limit control Outdoor unit control 4 way valve control In cooling operation ON In heating operation OFF Pulse Modulating valve control
81. f 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 110 Part name Procedure Remarks Replacement of 1 Cut the sensor 100 mm longer than old temperature sensor one Thermal Cutting here for servicing only 2 Cut the protective tube after pulling out sensor part Connector it 200 mm Common service 3 Move the protective tube toward the 200 Cutting here parts of sensor TO thermal sensor side and tear the tip of TS TE TD lead wire in two then strip the covering part 4 Pass the stripped part through the thermal constringent tube 5 Cut the old sensor 100 mm length the connector side and recycle that Cutting here 100 connector 6 Tear the lead wire in two on the con nector side and strip the covering part 7 Twist the leads on the connector and A Soldered part sensor sides and solder them L 8 Move the thermal constringent tubes EL NA toward the soldered parts and heat them with the dryer and constring zt ue them 9 Wind the attached color tape round the Doner both terminals o
82. f the protective tube when colored protective tube is used Winding the color tape 10 Fix the sensor again 1 Store the joint part of the sensor and the connector in the electric parts box 2 Never joint them near the thermal sensor part Otherwise it would cause insulation inferiority because of dew drops 3 When replacing the sensor using the colored protective tube wind the color tape matching the color of that tube These are parts for servicing sensors Please check that the accessories Sensor Spring A For spare shown in the right table are packed Parts name Remarks Sensor Length 3m Sensor Spring B For spare Thermal constringent tube Including one spare Color tape 9 colors Terminal 113 12 3 Outdoor Unit RAS 18SAV E 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 th
83. g heating operation 1 Press MODE Select A 2 Press MODE Select A 3 COOLING HEATING OPERATION 1 Press MODE Select Cool or Heat x 2 Press Set the desired temperature Cooling Min 17 Heating Max 30 3 Press FAN Select AUTO LOW LOW MED MED aan OF HIGH aad DRY OPERATION COOLING ONLY For dehumidification a moderate cooling performance is controlled automatically 1 Press MODE Select Dry 9 2 Press 8 MODE Set the desired temperature Hi POWER OPERATION To automatically control room temperature and airflow for faster cooling or heating operation except in DRY and FAN ONLY mode Press HI POWER Start and stop the operation FLOOR WARMING OPERATION Heating will operate with downward blowing only Temperature of air outlet will be higher than usual 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 an
84. g screws Wall installation 4 screw M4 x 25L 7 gt 5 7 e P4 e 2 4 screw M4 x 251 CAUTION Make sure to fix it at a designated position with the screws Failure may result the damage of piping by the turning over of a set 10 3 4 Concealed Installation The special method to install the indoor unit bury in the wall is shown here Please make sure to change to wall burying mode 1 To switch to the wall burying mode To switch to the wall burying mode press and hold AIR OUTLET SELECT button for 20 seconds When the operation set up and 5 beep sounds Then indication at Temperature indicator will light up for 5 seconds To cancel press AIR OUTLET SELECT button for 20 seconds then 5 beep sounds Then indication at Temperature indicator will blinks for 5 seconds To prevent dewfall above plate angle should be narrow ON OFF 4 For prevent dewfall Wall burying mode 2 Wall hole size Wall hole size should be enough to keep the distance with indoor unit as shown in the following figure Front view Unit mm Side view 70 or more 240 to 250 800 or more gt Ed o o E _ o Tn Floor i i 50 or more Indoor unit 50 or more Floor 3 Installation using the supporting plate e To
85. h 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 F As pressure is high it is impossible to measure by means of Gauge manifold x ts conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed Cr In order to increase pressure resisting strength hose materials Charge hose port size been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur Electronic balance for refrigerant charging The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 Torque wrench nominal diam 1 2 5 8 By increasing the clamp bar s receiving hole strength of spring in Flare tool clutch type the tool has been improved Gauge for projection adjustment Used when flare is made by using conventional flare tool Connected to conventional vacuum pump It is necessary to use an adapter to prevent vacuum pump oil from flowing back to
86. he 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 brazing it is effective to proceed with brazing while letting dry Nitrogen gas N2 flow N CAUTION 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 af
87. he 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 240 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 Cleaning operation After pressing the button for the first time press it for the second time without delay within 10 minutes 47 15 Self Cleaning Self Cleaning diagram function Operation display ON OFF OFF ON ON OFF rpm is depend on presetting 240RPM FCU fan Upper airoutlet OPEN OPEN 11 CLOSE OPEN or CLOSE OPEN or CLOSE OPEN or CLOSE Lower airoutlet depend on airoutlet selection depend on airoutlet selection depend on airoutlet selection ON or OFF ON ON or OFF depend on presetting of timer function depend on presetting of timer function ON or OF
88. heathed 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 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 d
89. heral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving infrared ray receiving circuit LED To check defect of the P C board follow the procedure described below 90 3 Check procedures Table 11 9 1 Causes Turn off the power supply breaker and remove the P C board assembly from electronic parts base Remove the connecting cables from the terminal block Check whether or not the fuse FO1 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 CNO1 and No 3 of CN301 AC 220 240V 2 Between and of DC 310 340 Between of IC122 and output side of IC122 DC15V 4 Between 12V and GND 5 Between 5V and GND The terminal block or the crossover cable is connected wrongly The fuse FO1 line filter L01 resistor R02 of the diode DBO1 is defective TC122 and T101 are defective D122 TC124 and T101 are defective 1C121 1C124 102 0121 and T101 are defective Push c button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between 01 and CN501 DC 15 60V 501 and 502 are def
90. ial 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 bottom plate and heat exchanger ST1T 4 x 10L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST1T 4 x 10L 1 pc 9 Pull upward the refrigeration cycle 10 Remove NUT 3 pcs fixing the compressor to the bottom plate Remarks TE LAT 8 x 4 Il d xit Vi _ Compressor Reactor 1 Perform work of item 1 of 2 Remove screws fixing the reactor 5 1 04 x 10L 2 pcs 108 Part name Electronic expansion valve coil Procedure 1 Detachment 1 Perform step 1 in 2 all the steps in 1 in 5 2 Remove the coil by pull it upward 2 Attachment 1 Insert a valve coil to value body by push it downward And confirm to fix it surely Remarks Fan guard 1 Detachment 1 Perform work of item 1 of 2 Remove the front cabinet and put it down so that fan guard side directs downward Perform work on a corrugated cardboard cloth etc to prevent flaw to the product 3 Remove the hooking claws by pushing minus screwdriver according to the arrow mark in the right figure
91. ibration e A place where the operation noise and discharged air do not disturb your neighbors e A place which is not exposed to a strong wind e A place free of a leakage of combustible gases e A place which does not block a passage e When the outdoor unit is to be installed in an elevated position be sure to secure its feet e This air conditioner accepts a connection piping length from 2 m to 20 m e There is no need to add refrigerant as long as the length of the connection piping is 15 m or less e You will need to add 20 g of refrigerant per meter of added connection piping for installation requiring connection piping to be between 16 m to 20 e An allowable height level is up to 10 m A place where the drain water does not cause any problems 10 4 2 Precautions about Installation in Regions with Snowfall and Cold Temperatures Do not use the supplied drain nipple for draining water Drain the water from all the drain holes directly To protect the outdoor unit from snow accumulation install a holding frame and attach a snow protection hood and plate Do not use a double stacked design Snow protection plate Install at least 50 cm above the snow Snow protection hood Cie accumulation line At least 50 cm Snow accumulation line Holding frame CAUTION Install the outdoor unit in a location where there are no obstructions near its air intake or air outlet When the outdo
92. ications RAS BIOUFV E RAS BI3UFV E RAS BI8UFV E RAS B18UFV E wer RAS E Cooling capacity Cooling capacity range Heating capacity Heating capacity range Power supply 0843 240V ENTM 240V ENIM 240V ENIM 240V Mm Outdoor Femmes em we ws wm vw ean indoor Dimention Height mm et mue ee iii ole 1 Air flow rate Cooling Heating m T 10 0 10 7 Outdoor ni Dimention Net INetweight kg Motor output w 9 1100 1100 Type Single rotary type with Single rotary type with Twin rotary type with Twin rotary type with DC inverter variable DC inverter variable DC inverter variable DC inverter variable speed control speed control speed control speed control Panman Pine connection Juul i mm Outdoor unit Liquid side Gas side Maximum length Maximum height difference m Refrigerant Name of refrigerant Wiring connection ee 4 range eS en ae Remote controller holder Remote controller holder holder Pan head wood screw _ 3 Insuateppe insulate pipe Beier ege E The specification may be subject to change without notice for purpose of improvement 6 2 2 Combined multi split outdoor unit The multi split outdoor units which can be combined with B UFV E series indoor unit
93. ing Tempeature Model name Standard Heat exchanger Indoor Outdoor Compressor condition C RAS pressure pipe temp fan mode fan mode revolution indoor Outdoor Teo Teo 716 NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent Thermistor themometer 2 Connecting piping condition 5 m 10k 13k 7 5 m 18k 25 8 1 Indoor Unit Heat Exchanger Sensor TCJ Heat Exchanger Sensor TC Room Temperature Sensor TA Infrared Rays Signal Receiver and Indication 8 CONTROL BLOCK DIAGRAM Indoor Unit Control Unit M C U Functions Cold draft preventing Function 3 minute Delay at Restart for Compressor Fan Motor Starting Control Motor Louver Motor Drive Control Indoor Fan a Motor Control 7 52 5 0 Processing n Initializing Circuit Temperature Processing Timer Indoor Clock Frequency Oscillator Circuit Serial Signal Communication i Damper Damper Clean Function Drive Control Power Supply Circuit Converter D C circuit Y 1 Serial Signal Transmitter Receiver MESE eee en EM From Outdoor Unit m EET 220 240V 50Hz Serial Signal Communication 220 230V 60Hz Operation Command and Information Remote Control Infrared Rays 36 7kHz REMOTE CONTROL
94. ing ECO operation 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation B zone ato cHz Room temp Set temp Hz B10UFV E B13UFV E B18UFV E 20 20 Lr css Operation flow and applicable data etc Description 12 Test When keeping OPERATION button pressed for 1 When pressing OPERATION button the operation 10 seconds or more the temporary COOL operation previous setting operation starts is performed 2 When keeping OPERATION button pressed for 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed Press OPERATION button 3 When keeping OPERATION button pressed for 10 seconds or more Pi sound is NO heard and the test COOL tion starts Did you press OPERATION button opera for 3 seconds or more Setting operation 4 If the filter lamp goes on press OPERTION button to go off the filter lamp and then press OPERTION button again YES Did you press OPERATION button 5 To stop the test operation press for 10 seconds or more the button again NO Switch to AUTO RESTART control Test COOL Operation 13 Discharge temperature control 1 Purpose This function detects error on the Td value Control operation refrigerating cycle or error on the com ressor and performs protective control Judges as an error and stops the compressor p p p
95. install into the existing wall hole if it is impossible to keep 20 30 mm of depth use the supporting plate for securing the distance Arrange the screw positions and supporting plate as shown in the figure Be sure to switch to wall burying mode Rear screws potion Side view Field supply Field supply 560 Screw holes Unit mm 4 In case of lattice establishment e Follow the following figure make sure to keep enough distance between lattice frame and wall Be sure to switch to wall burying mode e The lattice should be make of wood Between the air inlet and outlet should be devided with partition board Be sure to establish the open part for RECEIVER The open part of lattice must be opens 70 or more of the wall hole e The open part of lattice must be arranged uniformly Top view Unit mm Partition board 71 Front view 70 or more 800 or more Opening for receiver Partition board 670 or more 50 or more 50 or more 10 4 OUTDOOR UNIT e When using a multi system outdoor unit refer to the installation manual provided with the model concerned 10 4 1 Installation Place e A place which provides enough spaces around the outdoor unit as shown in the diagram e A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and v
96. l Do not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove e Keep the remote control at least 1 m apart from the nearest TV set or When the installation plate is directly mounted stereo equipment This is necessary to prevent image disturbances or noise interference on the wall e The location of the remote control should be determined as shown below Securely fit the installation plate onto the wall by screwing it in the upper Side view Top view and lower parts to hook up the indoor unit To mount the installation plate on a concrete wall with anchor bolts use the anchor bolt holes as illustrated in the below figure Install the installation plate horizontally in the wall Installation plate Keep horizontal direction X 5 mm hole Remote control Reception range Cex E Mounting screw A Pee eae Axial distance mm x 25 10 3 2 Cutting a Hole and Mounting ee Installation Plate Remote control Anchor bolt TA Y Projection 15 mm or less Indoor unit gt Cutting a hole Failure to firmly install the unit may result in personal injury and property damage if the unit falls Rear piping Side piping penc In case of block brick concrete or similar
97. l in a shadow area after washing e Scour heavy dirt with neutral detergent for kitchen and rinse it with the water Do not use the wire wool e Do not press the front panel strongly It may be cracked 62 9 4 3 and Functions of Indications on Remote Controller Display All indications except for the clock time indicator are displayed by pressing the button 1 Transmission mark This transmission mark A indicates when the remote controller transmits signals to the indoor unit 2 Mode indicator Indicates the current operation mode A Auto changeover control x Cool Heat 3 Temperature indicator Indicates the temperature setting 17 to 30 4 FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW MED a MED aum HIGH _ mg can be shown Indicates AUTO when the operating mode is either AUTO or Dry AM 0 101 Lt HiPOWER 5 TIMER and clock time indicator The time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation 6 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 7 9 PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the butt
98. le 50 B Detail Drawing Front leg IN 137 92 I D gt a Z View Y 600 100 or more 3 Air intlel gt ol SZ Air outlel B 100 or more n 600 0 morg Installation dimension 18 74 2 R5 5 17L Ushape For 8 10 anchor bolt 600 or more 2 11 x 14 Long holes For 8 210 anchor bolt COVER PV Electrical part cover Liquid side Flare 26 35 Gas side 10 13 Flare 29 52 Service port 4 3 Outdoor Unit RAS 18SAV E 600 90 Dia 11 14U shape hole leg park je NJ dia 8 10 bolt 2 4 Jp D 8 dia 7 hole 320 Anchor bolt long hole pitch 306 For fixing outdoor unit Dia 11 x 14 long hole For dia 8 10 anchor bolt Packed valve cover 157
99. le 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 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 B
100. ler does not change The indoor unit s fan speed level increase 1 tap 3 Heating operation e The preset temperature increases 2 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap 4 The Hi POWER mode can not be set in Dry operation 23 FILTER Indicator When the elapsed time reaches 1000 hours after operation the FILTER indicator lights After cleaning the filters turn off the FILTER indicator How to Turn Off FILTER Indicator Press OPERATION button on the indoor unit 51 24 Set temp correction Operation flow and applicable data etc Set temp can be corrected by changing the set temp correnction value Initial setting of the set temp correction value is 0 Set temp Set temp TS Set temp correction Set temp TS remote control or indoor unit display setting Set temp correction Cooling 5 5 Dry mode Heating 5 5 C lt How to change the set temp correction gt 1 Operate the air conditioner and select cooling or heating mode The set temp correction can t be changed at standby mode Push and hold AIR OUTLET SELECT button on the unit operation panel AIR OUTLET SELECT button Push OPERATION button on the unit operation panel 10 times Set temp correction value is displayed on the TEMPERATURE indicator OPERATION button TEMPERATURE 55 pie
101. lf cleaning operation ae Gooling position Heating position T Cons setting Lower limit io Operation flow and applicable data etc Description 11 ECO When pressing ECO button on the remote controller a lt Cooling operation gt operation Economic operation is performed 1 The control target temperature lt Cooling operation gt increase 0 5 C per hour up to 2 C This function operates the air conditioner with the difference starting from the set temperature between the set and the room temperature as shown in the when ECONO has been received following figure 2 The indoor fan speed is depend on presetting and can change Zone FAN 3 every speed after setting ECO 1 operation 3 The compressor speed is controlled as shown in the left figure N Oa Time Z correction 4 The time correction is performed every 8minutes see Fan speed depend on presetting and can change every speed 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 B10UFV E B13UFV E B18UFV E Heating operation Heating operation 30 minutes Compressor 1 Setting the compressor speed to speed Max aHz the temperature zone OHz in which the operation can be performed with Max cHz is gradually widened after 30 minutes passed when start
102. licable data etc When air conditioner is in operation before setting lt How to set Outdoor Quiet control gt 1 Push and hold OPERATION button for 20seconds OPERATION button 2 After holding 20seconds beep sounds is heard and OPERATION indicator flashes for 5seconds Release OPERATION button OPERATION indicator lt How to cancel Outdoor Quiet control gt 1 Push and hold OPERATION button for 20seconds OPERATION button 2 After holding 20seconds beep sounds is heard OPERATION indicator doesn t flash Release OPERATION button Description e After pushing OPERATION button air conditioner stops operation e After 3seconds 3 beeps are heard Auto restart setting is changed e After pushing OPERATION button air conditioner starts operation e After 3seconds 3 beeps are heard Auto restart setting is changed 9 3 Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is restored This function is not set to work when shipped from the factory Therefore it is necessary to set it to work 9 3 1 How to Set the 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
103. 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 bottom 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 mu ET Remarks Valve fixing plate Compressor Reactor 1 Perform work of item 1 of 2 and 3 2 Remove screws fixing the reactor ST1T 4 x 8L 4 pcs eI Part name Electronic expansion valve coil Procedure 1 Detachment 1 Perform step 1 in 2 all the steps in 3 and 1 5 2 Remove the coil 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
104. mp sensor TE outdoor suction temp sensor TS and outdoor sensor TO Set it correctly Gas amount check and valve clogging check Remove TC sensor connector from the P C board in indoor unit Remove connector from the P C board Operate the air conditioner in COOL mode by TEMP button 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 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 88 Add gas 11 7 How to Diagnose Trouble in Outdoor Unit 11 7 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 DBO1 etc 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 Table 1
105. mperature difference between the room tempera ture and the setup temperature Setup temperature Tsc Set temperature on remote controller Ts 1 0 to 0 0 3 When the room temperature is lower 2 C or less than the setup temperature turn off the compressor 4 The time correction is performed every 8 minutes Time correction 1 zone Operation flow and applicable data etc Description 2 Indoor fan lt 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 stages in AUTO mode respec M 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 Indication Fan speed Hi POWER under condition of inclining W7 W8 downward blowing 1 When setting the fan speed to L L M 2 L M 2 L M M or on the remote WA WC controller the operation is performed with the constant M 2 M H 2 speed shown in Fig 1 WD WE 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 i
106. n Fig 2 and Table 1 3 Fan speed M L x 3 4 L according to the setup tempera ture room temperature and heat exchanger temperature 3 4 5 5 Fan speed L x 1 4 1 from M and L WEN Linear appro ximation 6 Fan speed H L x 3 4 L 6 7 8 7 Fan speed H L x 2 4 L L W7 L W8 8 Fan speed H L x 1 4 L Linear appro ximation from H and L table 1 Indoor fan air flow rate Cooling i m3 h rpm m3 h rpm m3 h 498 624 498 624 468 600 408 528 408 528 342 468 300 414 300 414 258 366 216 324 216 300 282 258 258 258 33 Operation flow and applicable data etc Description 2 Indoor fan lt In heating operation gt 1 When setting the fan speed to L motor control L M or on the remote controller the operation is per formed with the constant speed Hearon 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 Indication Fan speed Hi POWER temperature and room temperature 3 Min air flow rate is controlled by we w9 temperature of the indoor heat L M 2 L M 2 exchanger TC as shown in Fig 4 WB WD 4 Cold draft prevention the fan speed is controlled by temperature M H 2 M H 2 of the indoor heat exchanger TC
107. n 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 20 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 PRESET FAN ONE TOUCH ee COMFORT SLEEP MODE QuiET e SWING Fix Hi POWER ECO FLOOR o 6 6 ON OFF 50 Purpose To start the unit immediately for the purpose of testing trial etc short timer be used maintenance of the unit Short Timer Setting Press 05 button to turn the unit OFF Setthe operation mode 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 05 button to turn the unit ON When short timer is activated all setting on the remote operates immediately besides all indicatiors on front panel turns ON continuously for 3 seconds 21 Comfort Operation flow and applicable data etc
108. nd pulse Modulating valve Remote controller Indoor unit display buttons Selecton Control contents of of unit display buttons operation e ON OFF conditions e Operation select AUTO COOL HEAT e Temperature setup e Air outlet select AUTO Upper Lower Selection of operation conditions Control contents of remote controller e ON OFF e Operation select COOL HEAT AUTO DRY e Temperature setup X e Air direction e Swing e Air volume select ON OFF AUTO LOW LOW MED MED HIGH eECO e COMFORT SLEEP ON timer setup e QUIET e OFF timer setup e PRESET e Hi POWER e ONE TOUCH eFLOOR Indoor unit Signal receiving Indoor unit control Indoor unit control Command signal generating function of indoor unit operation Calculation function temperature calculation Activation compensation function of indoor fan Cold draft preventive function Timer function Indoor heat exchanger release control Indoor fan motor Louver motor Operation command Serial signal send receive Outdoor unit Serial signal send receive Outdoor unit control Frequency control of inverter output Outdoor unit control Waveform composite function Calculation function Temperature calculation AD conversion function Quick heating function Current release function GTr over curr
109. ng method etc e Every wire must be connected firmly e If incorrect or incomplete wiring is carried out it will cause an ignition or smoke Prepare the power supply for exclusive use with the air conditioner e This product can be connected to the mains Connection to fixed wiring A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring 73 10 5 OTHERS 10 5 1 Gas Leak Test Check places for flare nut connection Indoor unit Valve cover e Check the flare nut connections for the gas leak with a gas leak detector or soap water Check places for the outdoor unit 10 5 2 Setting of Remote Control Selector Switch When two indoor units are installed in the separated rooms it is not necessary to change the selector switches Remote control selector switch e When two indoor units are installed in the same room or adjacent two rooms if operating a unit two units may receive the remote control signal simultaneously and operate In this case the operation can be preserved by setting either one indoor unit or remote control to B setting Both are set to A setting in factory shipment e The remote control signal is not received when the settings of indoor unit and remote control are different e There is no relation between A setting B setting and A room B room when connecting the piping and cables 10
110. nter should return Soldered surface o C12 C13 C14 500uF or 760uF 400V Heat sink IGBT side 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 when the multimeter probe is reversed 94 11 10 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1 Symptom Outdoor fan motor does not rotate Outdoor fan motor stops within several 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 P C board 3 How to simply judge whether outdoor fan motor is good or bad Turn OFF the breaker Disconnect two connectors CN300 of the outdoor fan motor from the outdoor P C board Does the fan rotate with
111. o Restart Function 56 9 3 3 Power Failure During Timer Operation 56 Remote Control etur e and Gek eten CO en apto cH MM EN UN 57 9 4 1 Remote control and iedee edente ee edn 57 9 4 2 Operation of remote control 4 57 9 4 3 Name and Functions of Indications on Remote Controller 63 Indoor Unit Display amp Unit Operation Panel 64 29 Description Item Operation flow and applicable data etc 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 or indoor unit display buttons as shown in the bolow 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 a
112. o compressor Disconnect the connector 3P Lead connected to reactor Disconnect the 2 connectors 2P 2 Connectors x7 CN300 Outdoor fan motor white See NOTE CN701 4 way valve 2P yellow CN600 TE sensor 2P white CN700 PMV 6P white CN603 TS sensor white CN601 TD sensor white CN602 TO sensor 2P white These connectors have a disconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the P C board base Remove the heat sink and control board assem bly while keeping them screwed together Disengage the 4 claws of the P C board base hold the heat sink and lift to remove it 3 Remove the 2 fixing screws used to secure the heat sink and control board assembly 4 Mount the new control board assembly When mounting the new control board assembly ensure that the P C board is inserted properly into the P C board support groove 115 lt CN603 CN701 CN703 rl CN601 CN600 CN700 CN602 CN300 CN300 CN701 CN703 CN600 and CN603 are connectors with locking mechanisms as such to disconnect them they must be pushed in the direction of the arrow while pulling them out 17 board base P C board
113. o not use the existing piping because there are some problems with pressure fittings and possible impurities in existing piping N CAUTION TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY A switch or circuit breaker that can disconnect all poles must be included in the fixed wiring Be sure to use an approved circuit breaker or switch N DANGER ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO INSTALL 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 HIGH VOLTAGE Dv 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 CORRECTLY CONNECT THE CONNECTING CABLE IF THE CONNECTING CABLE IS INCORRECTLY 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 NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE 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 R
114. o 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 N CAUTION Exposure of unit to water or other moisture before installation may result 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 antifreeze heater locally for a safe installation of the air conditioner For details contact the dealer 2 SPECIFICATIONS 2 1 Specif
115. ol operation returns to the usual control in heating operation R zone 7 Defrost control Only in heating Outdoor heat exchanger temperature operation 18SAV E 10SAV2 E Operation flow and applicable data etc This function removes frost adhered to the outdoor heat exchanger The temperature sensor of the outdoor heat ex changer TE sensor judges the frosting status of the outdoor heat exchanger and the defrost operation is performed with 4 way valve reverse defrost system Operation time Start of heating operation Minute 29 27 40 10SAV2 E 0 1015 13SAV2 E 18SAV2 E 13SAV2 E 3 C 7 C 5 5 do 0 detection time The minimum value of Te sensor 10 to 15 minutes after start of operation is stored in memory as Te0 Table 1 When 0 TE 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 3 continued for 2 minutes C zone defrost operation starts 40 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 in A to C zones 1 Stop operation of the compressor for 20 seconds 2 Invert ON 4 way valve 10 secon
116. ollows 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 control after the main power supply is turned off When the system is on stand by not operating Operation Motions Press OPERATION button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The operation 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 OPERATION button once more or use the remote control to turn it off Press OPERATION button for more than The unit is in operation The operation indicator is on three seconds Less than 10 seconds The unit stops operating The operation indicator is turned off After approx three seconds The unit beeps three times If the unit is required to operate at this time press OPERATION button once more or use the remote control 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 control even if it stopped due to a powe
117. on Check output DC voltage of fan motor on P C board P C board 6 Blue Yellow 5 Yellow Measure voltage between GND BLACK 4 White and 5 V line YELLOW of motor connector CN301 3 Black while indoor fan motor is rotating S 1 Red DC 1 0V or more P C board is defective Replace P C board Under DC 1 0V Motor is defective Replace motor 85 5 Troubleshooting for remote control lt Primary check gt Check that A or B selected on the main unit is matched with A or B selected on the remote control The unit does not beep at all Operation lamp on indoor unit is not indicated Push the c 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 control near receiver or nearby indoor unit Batteries are exhausted Push the c5 button Is transmission mark indicated YES Does indoor unit beep and operate YES d 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
118. on for more than 3 seconds while the mark is flashing Press another button to turn off the mark 8 ECO indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation 9 A B change indicator remote controller When the remote controller switching function is set B appears in the remote controller display When the remote controller setting is A there is no indication at this position 10 Comfort sleep Indicates when comfort sleep is activaled Press comfort sleep button to selectter 1 1 Quiet Indicates when quiet is activated Press quiet button to start and press it again to stop operation 12 One Touch Indicates when one touch comfort is activated Press one touch button to start the operation 13 Swing Indicates when louver is swing Press swing button to start the swing operation and press it again to stop the swing operation 63 9 5 Indoor Unit Display amp Unit Operation Panel This indoor unit can be operated with the unit operation panel or using remote control Operational contents will be followed the one which was operated later If change the set temperature with operation panel of unit temperature indication will be changed but the temperature display on the remote control will not change If set the air flow only with the upper port a little air flow may happen at the lower port OO amp 5G S 9 9
119. on the right 600 mm or more only when unobstructed to the front and both 8 mm thick heat resisting EL 4 Saddle polyethylene foam Remark Detail of accessory and installation parts can see in the accessory sheet N CAUTION Install in rooms that are 13 m or larger If a leak of refrigerator gas occurs inside the room an oxygen deficiency can occur PN In case of right or left piping Extension drain hose Not available provided by installer Heat insulation block can cut to an appropriate size and use for completely fill pipe hole to protect water dew Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type following the and positions 2 Wireless remote controller 10 2 Optional Parts Accessories and Tools 10 2 1 Optional Installation Parts Part Code Parts name Refrigerant piping 0 Liquid side 26 35 mm Gas side 9 52 mm RAS B 10 13UFV Series 012 70 mm RAS B 18UFV Series Pipe insulating material 1 polyethylene foam 8 mm thick One Putty PVC tapes each lt Fixing bolt arrangement of outdoor unit gt e Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind e Use 8 mm or Z 10 mm anchor bolts and nuts e f itis necessary to drain the defrost water attach drain nipple 9 and cap water proof 10 to the
120. onditioner which use R410A refrigeration cycle trouble may happen 1 Connect the charge hose from the manifold valve to the service port of the packed valve at gas side Connect the charge hose to the port of the vacuum pump Open fully the low pressure side handle of the gauge manifold valve Operate the vacuum pump to start evacuating Perform evacuating for about 15 minutes if the piping length is 20 meters 15 minutes for 20 meters assuming a pump capacity of 27 liters per minute Then conPrm that the compound pressure gauge reading is 101 kPa 76 cmHg Close the low pressure side valve handle of the gauge manifold valve Open fully the valve stem of the packed valves both gas and liquid sides Remove the charging hose from the service port Securely tighten the caps on the packed valves BON Compound pressure gauge Pressure gauge D101 kPa 76 cmHg 4 SN Manifold valve Handle Hi Keep full closed Handle Lo Charge hose hose For R410A only For R410A only Connecting pipe E x 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 e KEEP IMPORTANT 5 POINTS FOR PIPING WORK 1 Take away dust and moisture inside of the connecting pipes 2 Tighten the connections between pipes and unit 3 Eva
121. oor terminal block 2 and 3 replace indoor P C board Compressor does not rotate Current protective circuit does not operate when a specified time passed after compressor had been activated All off Displayed when error is detected Trouble on compressor Trouble on wiring of compressor Missed phase Discharge temp exceeded 117 C All off Displayed when error is detected Check dischage temp sensor TD Gas leakage Trouble on P M V Break down of compressor Displayed when error is detected Check power voltage 220 230 240 V 10 Overload operation of refrigera tion cycle Check installation condition Short circuit of outdoor diffuser 4 way valve inverse error TC sensor value lowered during heating operation Operation continues 82 Check 4 way valve operation 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 2 3 4 supplied between CN301 D Is the supply voltage normal Is the normal voltage provided to the outdoor unit Is the crossover cable connected properly Is the fuse F01 blown Turn off power supply once and 5 second later turn it on again NO Is OPERATION indicator flashing YES Is it possible to turn on power supply by pushing
122. or fan or Displayed when Check the motor trouble on the indoor fan error is detected When the motor is normal circuit check PC board Not Trouble on other indoor Operation Displayed when Replace PC board displayed PC boards continues error is detected Connecting Return serial signal is not Operation Flashes when 1 When the outdoor unit never cable and sent to indoor side from continues trouble is detected operate serial signal operation started on Return serial 1 Check connecting cable and 1 Defective wiring of ee as correct if defective wiring i status when signa connecting cable LE 2 Check 25A fuse of inverter 2 Operation of compres P C board sor thermo 3 Check 3 15A of inverter PC shortage Gas leak 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 PC board 80 Block distinction Operation of diagn osis functio Check code Block Outdoor board Cause of operation Inverter over current protective circuit operates Short time Air conditioner status All off Remarks Displayed when error is detect
123. or heat exchanger T1 Temp measurement t Eel 25 2 20m E HE 5 8 Min 2 Pressure measurement Deoxidized copper pipe 2 ales Eun Gauge attaching port _ Outer dia oun 2519 16 to 20m ais Vacuum pump connecting port Thickness 0 8mm 28 2 T Sectional shape Deoxidized copper pipe of heat ait Outer dia 12 7mm Thickness 0 8mm y eee eee Strainer 4 way valve 5 01082 Accumulater tank Muffler Muffler lt TD TS NOTE Outdoor heat exchanger die Compressor DA130A1F 27F TO Split capillary 2 dia 1 2 x 80 NN Propeller fan Distributor T2 OUTDOOR UNIT Pulse Modulating valve 60 at liquid side CAM B22YGTF 3 Temp measurement Refrigerant amount 1 40kg NOTE W Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating The maximum pipe length of this air conditioner is 20m When the pipe length exceeds 15m the additional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g 7 2 Operation Data lt Cooling gt Tempeature Model name Standard Heat exchanger Indoor Outdoor Compressor condition C RAS pressure pipe temp fan mode fan mode revolution indoor Outdoor P MPa Heat
124. or unit is installed in a place that is 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 e A saline place such as the coast e 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 equipment Side view Opening for receiver 140 20 to 30 Partition board 10 4 3 Draining off the Water from the Outdoor Unit f itis necessary to drain off the water from the outdoor unit install two water prooflng rubber caps and a drain nipple Water proof rubber caps supplied with the outdoor unit Base plate 10 4 4 Refrigerant Piping Connection 1 Cut the pipe with a pipe cutter 2 Deburr the inside of the pipe at its end Take steps to ensure that the removed burrs will not enter the pipe 3 Remove the flare nuts provided with the indoor and outdoor units and insert them into the pipe 4 Flare the pipe The projection margin of the pipe must be checked 5 Check that the Bare has the appropriate shape X x x Obliquit Roughness e Al 90 2 quity P 9 Z P 9
125. out 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 17 to 25Q it is normal Fan motor is normal Fan motor error Outdoor P C board error NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if PC board is replaced replace the outdoor fan motor 95 12 HOWTO REPLACE THE MAIN PARTS WARNING Since high voltages pass through the electrical parts turn off the power without fail before proceeding with the repairs Electric shocks may occur if the power plug is not disconnected After the repairs have been completed after the front panel and cabinet have been installed perform a test 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 r
126. over 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 4 x 10L 5 pcs 3 Perform cabling of connecting cable and attach the cord clamp Fix the cord clamp by tightening the screws ST2T 4 x 14L pcs fitting 2 concave parts of the cord clamp to each connecting cables 4 Attach the valve cover ST1TZ 4 x 10L 2 pcs e 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 103 Remarks __ Waterproof cover These 2 bending parts shall be put inside of a unit by bending these 2 ports This part shall be put on the side cabinet Fit the corner of the water proof cover to the corner of the front cabinet This line shall be pavallel to the front cabinet This part shall cover the gap between the inverter box and the front cabinet How to mount the water proof cover Part name Procedure Remarks Front cabinet 1 Detachment 1 Perform step 1 in 2 Remove the fixing screws ST1T 4 x 10L 2 pcs used to secure the front cabinet and inverter cover the screws ST1T 4 x 10L 4 pcs used to secure the front cabinet at the bottom and the fixing screws ST1T 4 x 10L 2 pcs used to
127. pcs used to secure the motor base 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 part 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 113 Part name Inverter assembly Procedure 1 Perform work of item 1 1 2 Remove screw ST1T 4 x 8L 2 pcs of the upper part of the front cabinet f removing the inverter cover in this condition board can be checked If 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 polarity by discharging resistance approx 100240W or plug of soldering iron to terminals of the C14 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 18SAV 500uF 225 760 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
128. perating status information of the outdoor unit to control the indoor unit controller NOTE 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 control or indoor unit display buttons and assumesthe 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 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 Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT module Compressor stop function Compressor and outdoor fan stop function when serial signal is
129. r failure 56 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 TOSHIBA On timer button ON PRESET ga FAN Off timer button OFF _ 8 Sleep timer button SLEEP Setup button SET ore Clear button CLR Onee Memory and Preset button PRESET 42 9 men One Touch button ONE TOUCH zx 576 High power button Hi POWER 9 01 d Tr Q Economy button ECO 5 51218 Quiet button QUIET O Comfort sleep button SLEEP 9 a Filter reset button FILTER Clock Reset button CLOCK 49 T j Check button CHK Floor warming mode button FLOOR FLTER CLOCK 3 GG o6 G5 6G 0G GO G0 C6 C 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 coolin
130. rated marks and keep them Explanation of indications Indication Explanation DANGER Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed Indicates possibilities assumed that a danger causing a death or serious injury of the repair AN WARNING engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed Indicates contents assumed that an injury or property damage may be caused on the repair N CAUTION engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed Property damage Enlarged damage concerned to property furniture and domestic animal pet Explanation of illustrated marks Mark Explanation Indicates prohibited items Forbidden items to do The sentences near an illustrated mark describe the concrete prohibited contents Indicates mandatory items Compulsory items to do The sentences near an illustrated mark describe the concrete mandatory contents Indicates cautions including danger warning The sentences or illustration near or in an illustrated mark describe the concrete cautious contents Deo For general public use Power supply cord of outdoor unit shall be 1 5 mm HO7RN F or 60245IEC66 polychloroprene s
131. ration and bi flow setting the air outlet is set only upper flow for preventing cold draft when the indoor heat exchanger sensor temperature TC is lower than 33 degrees e In cooling operation and bi flow setting the air outlet is set only upper flow for pravinting the room from overcooling when the room temperature TA is nearing the setup temperature This function can be cancelled to change setting lt How to cancell to change upper flow at Bi flow setting in cooling gt 1 Stop operation 2 Push and hold AIR OUTLET SELECT button on the unit operation panel over 10seconds less than 20seconds AIR OUTLET SELECT button ON OFF 3 After holding 10seconds 4 beep sounds in heard and TEMPERATURE indicator displays 1 for 5seconds Release AIR OUTLET SELECT button ON OFF 41 Operation flow and applicable data etc Description 8 Air outlet How to set to change upper flow at Bi flow setting in selection cooling 1 Stop operation Push and hold AIR OUTLET SELECT button on the unit operation panel over 10seconds less than 20seconds AIR OUTLET SELECT button ON OFF After holding 10seconds 4 beep sounds in heard and TEMPERATURE indicator displays 1 for 5seconds Release AIR OUTLET SELECT button 9 Lower air 1 Purpose outlet louver er UE control 1 Push AIR OUTLET SELECT button on the unit operation When someting is dropped to inside panel of the unit from upper air outlet
132. rews for motor hold 4 pcs Fan motor Procedure 3 Remove the flange nut and turbo fan refer to 4 Remove screws for motor holder and lead cover refer to 101 Remarks 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 ass y Remove the 2 fixing screws 3 Remove the electrical part base P C board layout IC122 301 101 CNO1 i PD B Mr CN212 ANT JUSTE B C01 L01 R02 CNO3 T101 CN501 CN602 102 12 3 Outdoor Unit RAS 10SAV2 E RAS 13SAV2 E 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 10L 2 pcs After removing screw remove the valve cover pulling it downward 3 Remove cord clamp ST2T 4 x 14L 3 pcs and then remove connecting cable 4 Remove the upper cabinet ST1T 4 x 10L 5 pcs After removing screws remove the upper cabinet pulling it upward 2 Attachment 1 Attach the water proof cover The water proof c
133. s automatically reduced and the outdoor unit will stop Automatic defrosting Fans will stop during defrost operation Heating capacity heat is absorbed from outdoor and released into the room A When the outdoor temperature is too low use another recommended heating apparatus in combination with the air conditioner 6 Consideration for accumulated snow Select the position for outdoor unit when it will not be subjected to snow drifts accumulation of leaves or other seasonal debris 7 Some minor cracking sound may occur when unit operating This is normal because the cracking sound may be caused by expansion contraction of plastic Temp Outdoor Temperature Room Temperature Operation RAS 10 13 18SAV Series Heating 15 C 24 Less than 28 C Cooling 10 C 46 21 32 C Dry 10 C 46 21 32 Concerning multiple connections please inquire to the dealership or refer to the catalog 60 18 TROUBLESHOOTING CHECK POINT 19 20 The unit does not operate Cooling or Heating is abnormally low e The power main switch is turned off e The filters are blocked with dust The circuit breader is activated to cut e The temperature has been set improperly off the power supply e The windows or doors are opened e Stoppage of electric current e The air inlet or outlet of the outdoor unit e ON timer is set is blocked The fan speed is too low e The operation mode is D
134. selection has been set to B receives the signal of the remote control 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 18 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 Because of the fan speed L may cause not enough the cooling capacity or heating capacity 19 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 butto
135. sheet The hole should be made at a slight downward slant on the outdoor side Do not form the Do not rise the drain drain hose x x O wavy shape hose into x X 1 48 Do not put the drain hose end into water n Do not put the drain hose end in the drainage ditch 2 Put water in the drain pan and make sure that the water is drained out of doors 3 When connecting extension drain hose insulate the connecting part of extension drain hose with shield pipe Shield pipe X I7 Extension drain hose An Inside the room Drain hose CAUTION Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping Wiring connection Wiring of the connection cable is necessary to remove the front panel Remove the terminal cover and cord clamp Insert the connecting cable according to the local rule into the pipe hole on the wall Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 50 cm from the front Insert the connecting cable fully into the terminal block and secure it tightly with screws Tightening torque 1 2 N m 0 12 kgf m Secure the connecting cable with the cord clamp Fix the terminal cover inst
136. surface tension the brazing filler adheres better to the treated metal 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 necessary to select an adequate type of flux according to the type and shape of treated metal type of brazing filler and brazing method etc 3 Types of flux Noncorrosive flux Generally it is 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 Used flux Piping material Used brazing filler Copper Copper Phosphor copper Do not use Copper Iron Silver Paste flux Iron Iron Silver Vapor flux NOTE 1 Do not enter flux into the refrigeration cycle 2 When chlorine contained in t
137. t Procedure 1 Side cabinet right 1 Perform step 1 in and all the steps in 2 Remove the fixing screw ST1T 4 x 10L 4 pcs used for securing the side cabinet to the bottom plate and valve fixing panel Side cabinet left 1 Perform step 1 in 2 Remove the fixing screw ST1T 4 10L 1 pc used to secure the side cabinet left onto the heat exchanger 3 Remove the fixing screw ST1T 4 x 10L 2 pcs used for securing the side cabinet to the bottom plate and heat exchanger Detail A Detail B Remarks Hook the claw onto P the bottom plate T in The back body section hooked onto the bottom plate here Detail C Fan motor 1 Perform work of item 1 of D 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 4 pcs 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 107 Flange nut Compressor Procedure 1 Perform work of item 1 of D and 5 2 Extract refrigerant gas 3 Remove the partition board 5 1 4 x 10L pcs 4 Remove the sound insulation mater
138. t exchanger TC sensor Normal temp Heat exchanger TCJ sensor Remote controller Refer to 11 5 1 5 Louver motor amp Damper motor Measure the resistance value of each winding coil by using the tester MP24Z3T Under normal temp 25 C Position Resistance value 250 20 Indoor fan motor Refer to 11 5 1 3 and 4 ICF 340 41 1 11 9 4 OutdoorUnit Part name Checking procedure Compressor Measure the resistance value of each winding by using the tester Model DA130A1F 27F Red m Resistance value RAS 18SAV E RAS 18SAV2 E Position DASSXICHF23FZ Red Whi Model DA89X1C 23FZ2 T Black 0 92 to 1 020 1 04 to 1 160 RAS 10SAV2 E RAS 13SAV2 E Black Red White Black Under 20 Outdoor fan motor Measure the resistance value of winding by using the tester Model ICF 140 43 4R Red White 20 to 22 White Black 20 to 22 Black Red 20 to 22 4 way valve coil Measure the resistance value of winding by using the tester nende 8 1435 144 Under 20 Pulse motor valve coil Measure the resistance value of winding by using the tester Model CAM MD12TF 16 CAM MD12TF 16 CAM MD12TF 10 or Position Resistance value Position Resistance value Model CAM MD12TF 10 Red White 42 to 50Q Red White 42 to 50Q RAS 18SAV E Red Orange 42 to 500 Red Orange 42 to 500 Red Yellow 42 to 500 Brown Yellow 42 to 500 Red Blue
139. tage Gas leak Pipe clogging 2 If the unit stops once it does not operate until the power will be turned on again To item of Outdoor unit does not operate 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed Discharge temp error check code 03 1E Sensor temp error check code 02 1C Gas leak P M V is defective Miswiring of connecting wires of indoor outdoor units Refer to the chart in 11 6 Clogging of pipe and coming off of TC sensor 87 11 6 Check Code 1 Miswiring in indoor outdoor units and 1E lt Check procedure gt Gas leakage Discharge temp error disconnection of TS TC gas leakage sensors Check code 02 1C Check code 03 1E lt Valve drive check Is coil of the pulse motor valve NO P M V correctly set YES Set it correctly lt Is connecter of coil 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 Are 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 te
140. temp Ts 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 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 temp TO Setup of current release point Outdoor unit inverter main circuit control current
141. ter brazing Flow meter Stop valve Nitrogen gas cylinder From Nitrogen cylinder gas Rubber plug Fig 3 5 1 Prevention of oxidation during brazing 16 4 CONSTRUCTION VIEWS 4 1 Indoor Unit RAS B10UFV E RAS B13UFV E RAS B18UFV E Connecting pipe 10UFV series 18UFV series 13UFV series dia 6 35 dia 6 35 dia 9 52 dia 12 7 Back body Display and Operation panel Front panel Air inlet Air inlet Connecting pipe Gas side Connecting pipe Liquid side Knock out system me 1 GEE Se 204 15 Mounting plate Mounting screw 600 Dia 65mm 380 Front View Back side View 11 4 2 Outdoor Unit RAS 10SAV2 E RAS 13SAV2 E A 28 108 125 600 is 6 R15 IN m o 8 ch f 8 H 9 96 hole Y i Tee R5 5 _ I l Noe 25 Drain ud 2 011 x 14 Hole For 28 210 anchor bolt A detail Drawing Back leg FAN GUARD 436 a LO LO LO NS N 290 TOSHIB 9 8 Wi B 6 hole 36 R15 11x14 ho
142. the vertical straight pipe part of the discharge pipe TO sensor Outside air temperature sensor Attachment Insert the outdoor air temperature sensor into the holder and install the holder onto the heat exchanger Detail A Detail B 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 119 13 EXPLODED VIEWS AND PARTS LIST 13 1 Indoor Unit 1 43T00553 43T09460 43 80325 43 03379 43 39340 43 21424 43 20330 43 60408 43 63331 43 22314 43 44455 43 44456 43 44457 Description FRONT PANEL ASSY INLET GRILLE ASSY AIR FILTER BACK BODY ASSY MOTOR BASE ASSY FAN MOTOR ASSY TURBO FAN ASSY MOTOR HOLDER LEAD COVER BELL MOUTH ASSY REFRIGERANT CYCLE ASSY FOR RAS B10UFV E REFRIGERANT CYCLE ASSY FOR RAS B13UFV E REFRIGERANT CYCLE ASSY FOR RAS B18UFV E 120 43T 19333 43 79314 43 79315 43 49341 43 72310 43 70313 43 22317 4
143. this AIR OUTLET SELECT button function helps to remove something from lower air outlet lt How to open or close the lower louver at standby mode gt 2 When lower louver is closed lower louver moves to open position and TEMPERATURE indicator displays OP OPEN during louver moving When lower louver is open lower louver moves to open plsition and TEMPERATURE indicator displays CL CLESE during louver moving lt Close gt Open gt lt Open gt Close gt TMPERATURE indicator lt Louver position in operation gt Lower louver is controlled in operation as below Air outlet za Position OPEN CLOSE OPEN 42 Operation flow and applicable data etc Description 10 Upperair Upper louver position can be arbitrarily set pu by pushing 1 Description outlet louver FIX button of the remote control control Upper 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 The position is controlled as below position Mode louver position z 2 Heating ____________ 5 10 1 10 12 10 10 1 1 1 0 _ Cooling Consealed setting 05 40 5 0 8 9 00 00 00 2 Heating Consealed setting 2 3 6 0 8 900 00 02 0 Self cleaning Upper limit Heating 40 6 72 Se
144. tor Then start to operate indoor unit with remote controller 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 of motor Oe CN301 Check this condition within 15 seconds after starting unit Is it possible to change airflow level to HIGH YES YES Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby NO At this time is it possible to detect DC 1V or more between 5 and 3 O of motor connector CN301 Fan motor operates normally YES 84 4 Indoor fan motor automatically starts to rotate by turning on power supply lt Cause gt The IC is built in the indoor fan motor Therefore the P C board is also mounted to inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply Inspection procedure 1 Remove the front panel Remove 4 screws 2 Remove the cover of the indoor unit controller remove 1 screw 3 Check DC voltage with CN301 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
145. 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 Operation control of outdoor fan motor Operations followed to judgment PM V control 4 way valve control 28 of serial signal from indoor side 9 2 Operation Description 9 3 9 4 9 5 1 BasiC Operation noren 30 1 Operatiom Contro lieri de e a e e aa aE a E EE E R 30 2 Cooling Heating OperafiQr gean 31 S AUTO operations 31 4 DRY Operation terrine en a OR Odie A a oes 32 2 Indoortan motor control eere Fes rare e Ra 33 3 Outdoor fan motor ener 36 Capacity Control MNT 38 5 Currentrelease 38 6 Release protective control by temperature of indoor heat exchanger 39 7 Defrost control Only in heating 40 outlet selectioh redes oe de TR 41
146. type walls make 25 mm holes in the wall e Insert clip anchors for appropriate mounting screws 2 LO 71 een I AAN e y 1 T T Bottom piping A 7 i 81 i 8 Pipe hole 65 mm T 54 A x ne Pd 100 pla 1 After determining the pipe hole position drill the pipe hole 265 mm at a slight downward slant to the outdoor side NOTE When drilling a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately 69 10 3 3 How to Install Indoor Unit 1 Remove the air inlet grille Open the air inlet grille and remove the strap 2 Remove the front panel Remove the 4 screws Front panel Air inlet grille 542 29 112 240 148 210 163 Connection piping Treatment of piping connection 1 Check the flare nut connections for the gas leak or soap water with a gas leak detector 2 To prevent gap in slit fasten top and bottom with tape 3 Slit is covered with tape 4 Fasten with supplied Insulate sheet to prevent gap on the top of slit Gas leak check Tape CE T Slit Drainage 1 Run the drain hose sloped downwards NOTE Tape Insulation
147. uipment 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 Gauge manifold Charge hose Evacuating refrigerant charge run check etc No Vacuum pump adapter Vacuum evacuating No Electronic balance for refrigerant charging Refrigerant charge Refrigerant cylinder Refrigerant charge Yes Leakage detector Gas leakage check Yes Charging cylinder 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
148. ust be the same as the rated voltage of the air conditioner 2 Prepare the power source for exclusive use with the air conditioner RAS B 18UFV series 220 240V 50Hz 220 230V 60Hz RAS B 10UFV series 220 240V 50Hz 220 230V 60Hz RAS B 13UFV series 220 240V 50Hz 220 230V 60Hz Model Power source Maximum running current 8 5A 11 0A 12 0A Plug Socket amp fuse 16A rating Power cord HO7RN F or 60245 IEC66 1 5 mm or more Connecting cable HO7RN F or 60245 IEC66 1 0 mm or more When using a multi system outdoor unit is used refer to the installation manual provided with the model concerned Stripping length of the connecting cable Terminal 3 3 3 i N block og _ f Earth line Connecting cable Power cord Connecting cable Power cord RAS 10SAVR A RAS 18SAV E Terminal block 10 Earth line Connecting cable Power cord Connecting cable Power cord CAUTION Wrong wiring connection may cause some electrical parts burn out Be sure to comply with local rule on running the wire from indoor unit to outdoor unit size of wire and wiri
149. utton for 20seconds OPERATION button 2 After holding 20seconds beep sounds is heard and OPERATION indicator flashes for 5seconds Release OPERATION button OPERATION indicator 3 Push OPERATION button to stop temporary operation Set Auto restart function again lt How to cancel Outdoor Quiet control gt 1 Push and hold OPERATION button for 20seconds OPERATION button 2 After holding 20seconds beep sounds is heard OPERATION indicator doesn t flash Release OPERATION button 3 Push OPERATION button to stop temporary operation Set Auto restart function again Description 1 Purpose For the users who concern about noise of the outdoor unit this control controls the max revolution number of the compressor to reduce the noise 2 Description e It can be change setting whether air conditioner is operationg or not e After pushing OPERATION button air conditioner starts operation e After 3seconds 3 beeps are heard Auto restart setting is changed e After 10seconds a beep is heard Temporary operation starts and Auto restart function is cancelled e After pushing OPERATION button air conditioner starts operation e After 3seconds 3 beeps are heard Auto restart setting is changed e After 10seconds a beep is heard Temporary operation starts and Auto restart function is cancelled 25 Outdoor Quiet control for only 1 1 outdoor unit Operation flow and app
150. verter 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 100 40W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 500uF 400V or 760uF 400V on P C board and then perform discharging Discharging position Discharging period Plug of 10 seconds or more Soldering iron Inverter cover P C board Soldered surface if Fig 11 3 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 is not in this range the unit may not operate normally 11 1 3 Operation Which is not a Trouble Program Operation For controlling the air conditioner the program operations are built in the microcomputer as described in the following table If a claim is made for running operation che
151. w for earth lead 4 Remove screw for display base 5 Pull off the TC TCJ sensor 6 Take off fan motor conector 7 Take off louver motor conector 8 Take off damper motor conector 9 Remove screw for earth lead from fan motor base 10 Remove screw for E box 11 D Pull the upper part of the E box 11 Lift a E box in the upward for take off from the hook Remarks TC sensor TCJ sensor 4 The screw for display base 3 Screw for earth lead 5 TCJ sensor 2 Screws for drain guide 3 4 pcs 7 Louver motor connector 9 Screw for earth lead from fan motor base 10 Screw for E box 8 Damper motor connector 6 Fan motor connector Hook for locking E box Part name Electrical parts Box assembly E box Heat exchanger Refrigerant cycle assembly Horizontal 1 louver Procedure lt How to arrange the lead gt Shown in the picture 1 Take off the pipe holder 2 Remove screws for heat exchanger 4 pcs Open a horizontal louver outward and stretch the arm of louver base same as the direction in the picture 98 Remarks Display unit lead Louver motor lead Fan motor lead Earth lead from fan motor base Damper motor lead Louver base assembly Bell mouth Drain pan and damper base Procedure 1 Remove screws
152. 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 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 lt 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 39 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 C the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 50 C or when it drops below to 46 C the capacity contr

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