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SERVICE MANUAL

1. Compressor RED AN Hek WHI 5 CM 3231 Bk 0200 205 0300 305 NLIS 1 IGBT MOS FET A A raar A MIN Fan Motor To WALA YEL P24 gt R220 R320 CN700 f PMV P23 i AAA ed 4 VES 22 R219 R319 gt 21 1 4 e s ANN 4 Pulse Motor Valve BRW pu 1 YEL 5 MCC 5009 Suction pipe Temp Sensor 212 F03 Fuse CN602 uus ORN 250V T3 15A Wo n Tem ee pas 4 r Laa 2588 EM fn i AS T RA A D 5 Wi Varistor Discharge pipe Temp Sensor zi Relay 5 Surge F01 Fuse Q404 Absorber 250V T25A pg __ 701 POT ______ Pio PO2 Condenser pipe P33 P32 1 Po XX3 BLK ORN BLK WHI De 1 5 5 77 Reactor s 3 iQl2Y3 1 Coil for amp 4 way Valve Tt 1 Power Supply From Main Line Indoor Terminal Block 12 De POWER SUPPLY 45 Fr
2. 10 5 Others 10 5 1 Gas leak test Check places for indoor unit Flarenut connection P id Check places for outdoor unit Fig 10 5 1 Check the flare nut connections for the gas leak with a gas leak detector or soap water 10 5 2 Remote Control A B Selection 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 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 There is no relation between A setting B setting and room B room when connecting the piping and cables 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 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the indoor unit 3 Push and hold CHECK button on the Remote Control by the tip of the pencil 00 will be shown on the display Picture 4 Press MODE during pushing CHECK B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Contro
3. Running current 6 86 6 28 Power consumption 1485 Power factor e Starting current COP Cooling 7 Heating High Cooling Heating Cooling Heating Cooling Heating Cooling Heating 7 c gt EIS o 2 3 c 3 alale cjo 1510 518 2 8 ile ela 00 gt gt gt gt g 3 e o 2 I v 3 3 3 3 Indoor unit C mm 0 0 0 0 25 an motor output DOO D 2 7 2 3 5 7 2 3 5 90 25 0 Outdoor unit i Type miz Q 8 SAE Cooling Heating 3 mi 11 5 12 3 IE 8 o ARIE 5 5 2 3 3 2 x 2 3 3 3 3 o 5 3 3 z S e Q o o i S E S 1 Q an motor output w Piping connection Indoor unit Outdoor unit Refrigerant Wiring connection Usable temperature range ndoor Cooling Heating C Outdoor Cooling Heating C Accessory Indoor unit TOSHIBA IAQ Filter qong yee Outdoor unit The specification may be subject to change without notice for purpose of improvement FILE NO SVM 15006 2 3 Operation Characteristic Curve RAS B10N3KV2 E1 RAS B13N3KV2 E1
4. Cooling Heating 8 7 RAS B13N3KV2 E1 6 RAS B13N3KV2 E1 E 6 54 _ S al lt t 4 E g 8 3 _ RAS B10N3KV2 E1 8 RAS B10N3KV2 E1 Conditions m Conditions 2 Indoor DB 27 C WB 19 2 Indoor DB 20 C WB 15 C Outdoor DB 35 C WB 24 C Outdoor DB 7 C WB 6 C Indoor Air Flow High Indoor Air Flow High Pipe Length 5m i 14 Pipe Length 5m Voltage 230V Voltage 230V 0 t t 0 t t t 0 20 40 60 80 100 0 15 30 45 60 75 90 105 120 Compressor Speed rps Compressor Speed RPS RAS B16N3KV2 E1 lt Cooling gt lt Heating gt 9 9 8 8 7 7 6 6 5 5 3 34 Conditions Conditions 2 4 Indoor 27 C WB 19 2 Indoor DB 209C Outdoor DB 35 Outdoor DB 7 C WB 6 C Air Flow High Air Flow High 1 Pipe Length 5m 14 Pipe Length 5m m Voltage 230V Voltage 230V 0 0 0 10 20 30 40 50 60 70 80 90 100 110 120 0 10 20 30 40 50 60 70 80 90 100 110 120 Compressor Speed rps Compressor Speed rps FILE NO SVM 15006 2 4 Capacity Variation Ration According to Temperature Capacity ratio 96 RAS B10N3KV2 E1 RAS B13N3KV2 E1 Cooling 105 0 100 0 RAS B13N3KV2 E1 95 0 g 90 0 E 85 0 o 5 amp 800 c o 750 o 70 0 Capacity ratio 100 Conditions 65 0 2 50kW RAS B1ON3KV2 E1 Indoor DB 27 C WB 19 3 5
5. 117 FILE NO SVM 15006 1 SAFETY PRECAUTIONS The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual Be sure to read this installation manual carefully before installing Recommend to the owner to perform maintenance periodically when using over long periods of time Be sure to follow the precautions provided here to avoid safety risks The symbols and their meanings are shown below DANGER It indicates that incorrect use of this unit can result in a high possibility of severe injury 1 or death WARNING It indicates that incorrect use of this unit may cause severe injury of death CAUTION It indicates that incorrect use of this unit may cause personal injury 2 or property damage 3 1 Asevere injury refers to blindness injury burns hot or cold electrical shock bone fracture or poisoning that leaves aftereffects and requires hospitalization or extended out patient treatment 2 Personal injury means a slight accident burn or electrical shock which does not require admission or repeated hospital treatment 3 Preperty damage means greater damage which affects assets or resources For general public use Power supply cord and connecting cable of appliance for outdoor use shall be at least polychloroprene sheathed flexible cord design HO7RN F or cord designation 60245 IEC66 Shall be installed in accordance with national wiring regulations
6. Inverter cover P C board Soldered surface Ee o om Fig 11 6 69 FILE NO SVM 15006 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 nota Trouble Program Operation For controlling the air conditioner the program operations are built in the microcomputer as described in the following table If a claim is made for running operation check whether or not it meets to the contents in the following table When it does we inform you that it is not trouble of equipment but it is indispensable for controlling and main taining of air conditioner Table 11 1 1 Operation of air conditioner When power breaker is turned ON the operation indicator Green of the indoor unit flashes Description The OPERATION lamp of the indoor unit flashes when power source is turned on If 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
7. H section 107 Part name Inverter assembly Procedure 1 Perform work of item 1 in D 2 Remove screw 6 1 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 9 polarity by discharging resistance approx 100Q40W or plug of soldering iron to terminals a of the CO7 printed WARNING ELECTRIC SHOCK is attached electrolytic capacitor 760 or 500uF on P C board Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage remains according to trouble type in some cases This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between 4 Remove screw ST1T 4 x 10L 4pcs fixing the terminal part of inverter box to the main 5 Remove the front cabinet by performing step 1in and remove the fixing screws ST1T 4 x 10L for securing the main body and inverter box 6 Remove various lead wires from the holder at upper part of the inverter box 7 Pull the inverter box upward 8 Disconnect connectors of va
8. 120 13 6 P C Board Layout RAS 16N3AV2 E Location Description No 43T62320 43T69941 43T60392 HEATSINK PC BOARD TERMINAL 5P FILE NO SVM 15006 706 X 1 TE Sensor 6 TS Sensor 26 X 1 TO Sensor 06 TD Sensor 04 705 Location Description No 43T60377 TEMPERATURE SENSOR 43T50304 SENSOR HEAT EXCHANGE 43T62313 BASE PLATE PC 43T6V536 FUSE 43T60326 121 TOSHIBA CARRIER THAILAND CO LTD
9. CAUTION New refrigerant air conditioner installation e THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER R410A refrigerant is apt to be affected by impurities such as water oxidizing membranes and oils because the pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 As well as the adoption of this new refrigerant refrigerating machine oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigerating machine oil does not enter the refrigeration cycle of a new refrigerant air conditioner To avoid mixing refrigerant and refrigerating machine oil the sizes of charging port connecting port connecting sections on the main unit are different from those for the conventional refrigerant and different size tools are also required For connecting pipes use new and clean piping materials with highpressure withstand capabilities designed for R410A only and ensure that water or dust does not enter Moreover do not use any existing piping as its pressure withstand may be insufficient and may contain impurities DANGER FOR USE BY QUALIFIED PERSONS ONLY MEANS FOR DISCONNECTION FROM THE SUPPLY HAVING A CONTACT SEPERATION OF AT LEAST 3 mm IN ALL POLES MUST BE INCORPORATED IN THE FIXED WIRING TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK MAKE SURE ALL POWER SWITCHES ARE OFF FAILURE TO DO SO M
10. Linear approximation from M and L Table 1 Indoor fan air flow rate RAS B10N3KV2 E1 RAS B13N3KV2 E1 Mod e Cool Heat Fan speed Air flow rate Fan speed Air flow rate Fan speed Air flow rate Fan speed Air flow rate rpm m3 h rpm m3 h rpm m3 h rpm m3 h RAS B16N3KV2 E1 UR Fan speed Air flow rate Fan speed Air flow rate Cool Heat rpm m3 h rpm m3 h FILE NO SVM 15006 wem Operation flow and applicable data etc Description 2 Indoor fan In heating operation 1 When setting the fan speed to L motor control L M M or H on the remote controller the operation is per formed with the constant speed shown in Fig 3 and Table 1 2 When setting the fan speed to AUTO on the remote controller MANUAL revolution of the fan motor is controlled to the fan speed level shown in Fig 5 according to the set Indication Fan speed temperature and room temperature L ws 3 Min air flow rate is controlled by temperature of the indoor heat Lr a L M 2 exchanger Tc as shown in Fig 4 M WA 4 Cold draft prevention the fan M H 2 speed is controlled by temperature WE of the indoor heat exchanger Tc as shown in Fig 6 5 In order to prevent Cold draft when Min air flow rate control compressor step during heating operation Then louver will move to upper position and fan speed will reduce or off Limited to Min WD tap No limit Fan speed TC 42 a 10 x WD
11. is C d is D Eco 4 H lt 2 5 SLEEP OFF le v P LS Sai E Press CHECK button with a tip of pencil to set the remote controller to the service mode fill is indicated on the display of the remote controller Press ON A or OFF 4 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 The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check codes 11 to 23 as shown in Table 11 4 1 Press ONY or OFF button to change the check code backward If there is a fault the indoor unit will beep for 10 seconds Beep Beep Beep Note the check code on the display of the remote controller 2 digits alohanumeric will be indicated on the display All indicators on the indoor unit will flash 5 times per 1 sec Press CLR button After service finish for clear service code in memory TF is indicated on the display of the remote control Press button to release the service mode The display of the remote controller returns to as it was before service mode was engaged Fig 11 4 1 11 4 2 Caution at Servicing FILE NO SVM 15006 1 After using the service mode of remote controller finished press the 6 button to reset the remote controll
12. 1 00 250V p o ICH C103 9 Ee e M 5 cr 3 ze 8 5 11203 1016 10311 1032 3 132 J31 J30 OE g 2 ziE A EE n 2098 ART AE2A VO W 7 GND 5 1 Sensor characteristic table TD Discharge temp sensor TA Room temp sensor TC Heat exchanger temp sensor TO Outdoor temp sensor TS Suction temp sensor TE Outdoor heat exchanger temp sensor Resistance value 10 20 30 40 50 60 Temperature C 93 11 8 3 Indoor Unit Other Parts Part name Room temp TA sensor Heat exchanger TC sensor FILE NO SVM 15006 Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Remote controller Refer to 11 5 1 5 Louver motor 24BYJA8 HTP Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position Resistance value 2500 7 Indoor fan motor 11 8 4 OutdoorUnit Part name Compressor Model ASM89D16UFZ 10 13k Model DA131S1B 31FZ 16k Refer to 11 5 1 3 and 4 Checking procedure Measure the resistance value of each winding by using the tester Resistance value Position Red White White Black White Black Red ASM89D16UFZ DA131S1B 31FZ Under 20 C Outdoor fan motor Model ICF 140 43
13. Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp sensor TA sensor Judgment of the indoor heat exchanger tempera ture by using heat exchanger sensor TC sensor Prevent freezing control etc Louver motor control Indoor fan motor operation control LED Light Emitting Diode display control Transferring of operation command signal Serial signal to the outdoor unit Reception of information of operation status Serial signal including outside temp data to the outdoor unit and judgment display of error Air purifier operation control 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT module Compressor stop function Compressor and outdoor fan stop function when serial signal is off when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system Transferring of operation information Serial signal from outdoor unit controller to indoor unit controller Detection of outdoor temperature and operation revolution control Defrost control in heating operation Temp measurement by outdoor heat exchanger and control for 4 way valve and outdoor fan
14. Signal send only 1 minute and stop Because of return signal from outdoor unit has not received Signal resend again after 3 minutes stop And the signal will send continuously 4 minute after resending the indoor unit display flashes error 74 FILE NO SVM 15006 Action and Judgment 1 to 3 The outdoor unit never operate Check connecting cable and correct if defective wiring Check 25A fuse of inverter P C board Check 3 15A fuse of inverter P C board Check operation signal of the indoor unit by using diode Measure voltage at terminal block of the indoor unit between No 2 and No 3 or L2 and S If signal is varied 15 60V continuously replace inverter P C board If signal is not varied replace indoor P C board 4 The outdoor unit abnormal stop at some time f the other check codes are found concurrently check them together Check protector hardware such as Hi Pressure switch Thermal Relay etc Check refrigerant amount or any possibility case which may caused high temperature or high pressure Check operation signal of the indoor unit by using diode Measure voltage at terminal block of the indoor unit between No 2 and No 3 or L2 and S If signal is varied 15 60V continuously replace inverter P C board If signal is not varied replace indoor P C board Block distinction Outdoor P C board Operation of diagnosis function Lo d Air Cause of opera
15. First remove the left shaft and then remove other shafts while sliding the horizontal louver leftward Evaporator 1 Follow to the procedure in the item Heat exchanger 2 Remove the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger F ka 2 ad 4 Remove one fixing screw on the heat exchage fixing holder to separate the heat exchage from the back holder Heat exchanger fixing 5 Remove right side of the end plate from two fixing rib while sliding slightly the heat exchanger rightward Rib on the right side of the end plate 101 FILE NO SVM 15006 Part name Procedures Remarks Bearing 1 Follow to the procedure in the item 2 2 Remove the two screws used to secure the bearing base Two screws 3 Remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate itin the main body Bearing Bearing base 102 Part name Fan motor Procedures 1 Follow to the procedure till item 6 2 Loosen the set screw of the cross flow fan 3 Remove two fixing screws of the motor cover and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor band 5 Pull the fan motor outward Reference line Fan mo
16. assuming a pump capacity of 27 liters per minute Then confirm that the compound pressure gauge reading is 1101 kPa 176 cmHg Close the low pressure side valve handle of 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 Compound pressure gauge Pressure gauge 101 kPa 176 cmHg w Manifold valve 0 Handle Hi Keep full closed Handle Lo O Charge hose 4 lt Charge hose Connecting pipe Vacuum pump adapter for counter flow prevention EN me Vacuum pump Packed valve at gas side Service port Valve core Setting pin Packed valve at liquid side Fig 10 4 8 CAUTION KEEP IMPORTANT 5 POINTS FOR PIPING WORK 1 Take away dust and moisture Inside of the connecting pipes 2 Tight connection between pipes and unit 3 Evacuate the air in the connecting pipes using VACUUM PUMP 4 Check gas leak connected points 5 Be save to fully open the packed valves before operation Packed valve handling precautions e Open the valve stem all the way out but do not try to open it beyond the stopper Pipe size of Packed Valve Size of Hexagon wrench 12 70 mm and smallers 4 15 88 A 5 mm Securely
17. in the above condition 1 Check whether or not the com pressor operates 2 Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely low The connection of the heat ex changer sensor is loose The connector is disconnected CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main 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 2 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 P C board The board is defective The connection of the motor connector is loose 11 8 2 Board Layout RAS B10N3KV2 E1 RAS B13N3KV2 E1 P TOSHIBA HP 029 08 pr 5 5 COMPONENT SIDE 5V 92 FILE NO SVM 15006 FILE NO SVM 15006 RAS B16N3KV2 E1 WP 026 04 o TOSHIBA CARRIER _ WP 026 04 COMPONENT SIDE M f OEE 6 1 Pel us
18. of the main unit and attach it pushing upward 106 FILE NO SVM 15006 Remarks Upper cabinet 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 FILE NO SVM 15006 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 6 1 4 x 10L 4 pcs used to secure the front cabinet at the bottom and the fixing screws 6 1 4 10L 2 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 and attach them
19. replace inverter P C Board If 3 Phase output is normal measure resistance of compressor winding If winding is shortage replace the compressor Discharge temperature All OFF Flashes after Check sensors TD exceeded 117 C error is detected Check refrigerant amount 4 times Check P M V by measure the resistance of the coil and confirm its operation sound of initial operation etc Observe any possibility cause which may affect high temperature of compressor decreased to minimum limit 8 times amount and power supply rate 1096 Installation problem both of operation and non operation Instantaneous power condition failure Check P M V by measure the Refrigeration cycle resistance of the coil and confirm its problem operation sound of initial Compressor break down operation etc Compressor failure High Observe any possibility cause which current operation etc may affect high current of compressor If 1 2 and are normal replace compressor 4 or 8 times When first error is detected error is count as 1 time then once operation is stop and re started After re starting operation within 6 minutes if same error is detected error count is add count become 2 times When error count comes 4 or 8 times record error to check code But after re starting operation if no error is detected and air conditioner can operate more than 6 minutes error count is cleared Compr
20. 10 3 10 Remark 1 Recommend to use double insulation lead wire for connect remote control and air conditioner 2 For wire operation 1 remote control can control only 1 indoor unit 3 In wire operation remote controller will return to initial condition PRESET TIMER and CLOCK will return to initial condition when user shutdown power supply of air conditioner How to install the air inlet grille on the indoor unit e When attaching the air inlet grille the contrary of the removed operation is performed JT 10 3 4 Piping and drain hose installation lt Piping and drain hose forming Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material FILE NO SVM 15006 Rearright aa P Rear left 5 Eo Bottom left mp _ 5 o eg g rx EHE zo Bottom right _ gt c gt 5 Right mp O 1 Die cutting front panel slit Cut out the slit on the left or right side of the front panal for the left or right connection and the slit on th bonttom left or right side of the front panel for the botto left or right connection with a pair of nippers 2 Changing drain hose For leftward connection bottom leftward connection and rear leftward connection s piping it is necessary to change the drain hose and drain cap How to remove the dra
21. 55 the compressor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 46 to under 55 the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 50 or when it drops below to 46 the capacity control operation returns to the usual control in heating operation R zone FILE NO SVM 15006 RAS B10N3KV2 E1 RAS B13N3KV2 E1 Operation flow and applicable data etc Description 7 Defrost control This function removes frost adhered to the outdoor The necessity of defrost operation is Only in heating heat exchanger detected by the outdoor heat exchanger operation The temperature sensor of the outdoor heat ex temperature The conditions to detect the changer Te sensor judges the frosting status of the necessity of defrost operation differ in A outdoor heat exchanger and the defrost operation is B or C zone each Table 1 performed with 4 way valve reverse defrost system Start of heating operation TE C 0 10 15 zone The minimum TE value and To value between 10 and 15 minutes after heating operation has started are stored in memory as and ToO respectively In normal To In abnormal To amp SH SHOL TEO TE TOO TO 3 C amp SH SHO TEO TEL2
22. C amp SH SHO TEO TE TOO TO 2 C amp SH SHO TEs 25 amp SH SHO More than 90 minutes accumulated heating operation time condition 2 C lt Defrost operation Returning from defrost operation Defrost operation in A to C zones 1 Stop operation of the compressor for 1 Stop operation of the compressor for approx 40 seconds 40 seconds 2 Invert ON 4 way valve approx 30 2 Invert OFF 4 way valve 40 seconds seconds after stop of the compressor after stop of the compressor 3 The outdoor fan starts rotating at the 3 The outdoor fan stops at the same time same time when the compressor starts when the compressor stops 4 When temperature of the indoor heat exchanger becomes 38 or lower stop the indoor fan Finish of defrost operations Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 or higher for 3 seconds 2 Temperature of outdoor heat exchanger is kept at 7 or higher for 60 seconds 3 Defrost operation continues for 10 minutes RAS B16N3KV2 E1 7 Defrost control Operation flow and applicable data etc This function removes frost adhered to the outdoor Only in heating heat exchanger operation The temperature sensor of the outdoor heat ex changer Te sensor judges the frosting status of the outdoor heat exchanger and the defrost op
23. CN62 CN72 CN31 CN72 CN61 CN73 CN64 CN62 and CN63 are connectors with locking mechanisms as such to disconnect them they must be pressed in the direction of the arrow while pulling them out CN603 CN601 n CN700 CN602 CN300 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 P C board base P C board Part name Side cabinet 1 Side cabinet right 1 Perform step 1 in Q and all the steps in Side cabinet left Procedure 2 Remove the fixing screw 571 784 10L 4 pcs used for securing the side cabinet to the bottom plate and valve fixing panel 1 Perform step 1 in 2 Remove the fixing screw 571 784 10L 1 pc used to secure the side cabinet left onto the heat exchanger 3 Remove the fixing screw 571 784 10L 2 pcs used for securing the side cabinet to the bottom plate and heat exchanger Detail A Detail B FILE NO SVM 15006 Remarks Hook the claw noto Pa the bottom plate The back body section hooked onto the bottom plate here Detail C Fan motor 1 Perform work of item 1 of D and Q 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened by turning clock wise To tighten the flange nut turn counterclockwise 3 Remove the propel
24. 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 Flashing display 5 Hz Protective circuit operation for indoor P C board Which lamp does flash OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for connecting cable and serial signal system OPERATION Green FILTER Orange Protective circuit operation for outdoor P C board Flashing display 5 Hz OPERATION Green TIMER Yellow Protective circuit operation for others FILTER Orange including compressor Flashing display 5 Hz NOTES 1 The contents of items B and C and a part of item E are displayed when air conditioner operates 2 When item B and C and item B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing 71 FILE NO SVM 15006 11 4 Self Diagnosis by Remote Controller Check Code 1 If the lamps are indicated as shown B to E in Table 11 3 1 execute the self diagnosis by the remote controller
25. SVM 15006 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 power is off Press the RESET button located in the center of the front panel continuously for three seconds The unit receives the signal and beeps three times The unit then restarts operating automatically in the event of power supply being accidentally shut down When the unit is standby Not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times The green indicator flashes and continues to operate for 5 seconds If the unit is not required to operate at this time press RESET button once more or use the remote controller to turn it off RESET button When the unit is in operation Operation Motions P
26. W8 W8 In up operation 1 in down operation 0 Basic fan control T AUTO Cold draft preventive control Line approximate H and SUL with Tc Stop Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting La e M A Ta TAR No limitati hile f d MANUAL is in stabilit 9 ER o limitation while fan spee mode is in stability 2 kan pee A When Tsc gt 24 Ais 24 and when Tsc lt 24 Ais Tsc 3 Fan speed M L x 3 4 L Tsc Set value Calculated with linear approximation from M and L Fig 5 In starting and in stability In stability Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation start FAN AUTO When 12 to 25 minutes passed after operation and room temp is higher than set temp 3 C start and room temp is 3 C or lower than set temp When 25 minutes or more passed after operation start FAN Manual Room temp Set temp 4 C Room temp gt Set temp 3 5 C FILE NO SVM 15006 Operation flow and applicable data etc Description 3 Outdoor fan The blowing air volume at the outdoor unit side is controlled 1 The operation command sent motor control Receiving the operation command from the controller of from the remote controller is indoor unit the controller of outdoor unit controls fan speed processed by the indoor unit For the fan motor a DC motor with non stage
27. and AUTO RESTART control is changed 3 When keeping RESET button pressed for 10 seconds or more Pi sound is heard and the temporary COOL operation starts 4 If the filter lamp goes on press RESET button to go off the filter lamp and then press RESET button again 5 To stop the temporary operation press the button again 1 Purpose This function detects error on the refrigerating cycle or error on the com pressor and performs protective control Operation Control of the compressor speed The speed control is performed as described in the left table based upon the discharge temperature 12 Pulse Modulating valve P M V control Operation flow and applicable data etc This function controls throttle amount of the refrigerant in the refrigerating cycle According to operating status of the air conditioner this function also controls the open degree of valve with an expansion valve with pulse Modulation Starting up Move to initial position Compressor ON Td release control PMV open degree control SH control Stop by remote controller Power OFF Room temp sensor Ta sensor control 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 42 FILE NO SVM 15006 Description 1 When starting the operation move th
28. and GND The terminal block or the crossover cable is connected wrongly The capacitor C01 line filter 101 resistor R10 or the diode DBO1 is defective is defective ICO2 and T01 are defective Push 0 button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN23 and CN31 DC 15 60V IC51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER PRE DEF Hi POWER are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN14 is defective Push 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 compressor operates 2 Check whether or not the OPERATION indicator flashes 1 The temperature of the indoor heat exchanger is extremely low 2 The connection of the heat exchanger sensor is loose The connector is disconnected CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective If the above condition No 5 still continues start
29. bolts and nuts e f it is necessary to drain the defrost water attach drain nipple and cap water proof to the bottom plate of the outdoor unit before installing it 54 FILE NO SVM 15006 10 2 2 Accessory and installation parts P P P ue Part name Q ty Part Q ty Part Q ty p T ess Flat head wood screw Installation plate x 1 Toshiba New IAQ filter L x 1 23 1 x 25 x 1 Be Ry Battery cover x 1 Drain nipple x 1 6 __ mmm D 41 Cap water Proof x 2 Wireless remote control x 1 Battery x 2 Mounting screw 24 x 25 2x6 Flat head wood screw Remote control holder x 1 3 1x16 0 x2 The part marked with asterisk is packaged with the door unit Others N out ame Owner s manual Installation manual 10 2 3 Installation Servicing Tools Changes in the product and components In the case of an air conditioner using R410A in order to prevent any other refrigerant from being charged accidentally the service port diameter of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 20 threads per inch n 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 RA10A Ne
30. concrete wall with anchor bolts utilize the anchor bolt holes as illustrated in the above figure Install the installation plate horizontally in the wall When installing the installation plate with a mounting screw do not use the anchor bolt hole Otherwise the unit may fall down and result in personal injury and property damage Installation plate Keep horizontal direction me s L Bolo O X Projection 5 mm dia hole 15 mm or less Z A ae 2 Mounting screw 24 x 250 Zr vM N Clip anchor ek local parts Fig 10 3 4 Failure to firmly install the unit may result in personal injury and property damage if the unit falls e In case of block brick concrete or similar type walls make 5 mm dia holes in the wall e Insert clip anchors for appropriate 7 mounting screws NOTE e Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it FILE NO SVM 15006 10 3 3 Wiring connection lt How to connect the connecting cable gt Wiring of the connecting cable can be carried out without removing the front panel 1 Remove the air inlet grille Open the air inlet grille upward and pull it toward you 2 Remove the terminal cover and cord clamp 3 Insert the connecting cable according to the local cords into the pipe hole on the wall 4 Take out t
31. controller is defective Refer to 5 Troubleshooting for remote controller Does fan motor connector YES short circuit Replace main P C board Parts of a power supply circuit defective CD 9 of CN31 Replace fan motor Be sure to disconnect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor 2 Power is not turned on though Indoor P C board is replaced Confirmation procedure Turn on power supply Does OPERATION indicator flash NO YES Is wired correctly to white and black lead wires of terminal block NO To item of Power supply is not turned on 79 3 Only the indoor motor fan does not operate Primary check FILE NO SVM 15006 1 15 it possible to detect the power supply voltage AC220 240V between D and on the terminal block 2 Does the indoor fan motor operate in cooling operation In heating operation the indoor fan motor does not operate for approximately 10 minutes after it is turned to prevent a cold air from blowing in RAS B10N3KV2 E1 RAS 10N3AV2 E1 RAS B13N3KV2 E1 RAS 13N3AV2 E1 Shut off the power supply once Turn the power supply Does the fan stop in NO no operating status YES Start the operation with low fan setting in cool opera
32. cools down to a certain extent temperature at which pipes are touchable with hands 4 Piping materials for brazing and used 7 Remove the flux completely after brazing brazing filler flux Piping material Used brazing filler Used flux Copper Copper Phosphor copper Do not use Copper Iron Silver Paste flux Iron Iron Silver Vapor flux Do not enter flux into the refrigeration cycle When chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water Remove the flux after brazing Nitrogen gas cylinder From Nitrogen cylinder gas Rubber plug Fig 3 5 1 Prevention of oxidation during brazing 6 FILE NO SVM 15006 4 CONSTRUCTION VIEWS 4 1 Indoor Unit Front panel 217 172 Installation plate hanger Drain hose 0 40m 17 5 Connecting pipe 0 35m Connecting pipe 0 40m Remote controller holder for 10 series Flare 69 52mm Flare D6 35mm for 13 series Flare 12 7 84 5 621 84 5 235 235 215 215 Minimum distance to ceiling ER 275 160 5 Center line Installation plate outline 47 FIL
33. lead Black lead Black lead Red lead of the connector CN300 Motor winding is 17 to 250 it is normal Fan motor is normal Outdoor P C board error Fan motor error NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor 97 FILE NO SVM 15006 12 HOW TO 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 refrigerant gas Do not use welding equipment in an airtight room Carbon monoxide poisoning may result i
34. mode As shown in the following figure the operation starts by selecting automatically the status of room temperature Ta when starting AUTO operation 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode Ta Cooling operation Monitoring Fan Heating operation 1 Detects the room temperature Ta when the operation started 2 Selects an operation mode from Ta in the left figure 3 Fan operation continues until an operation mode is selected 4 When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20 C or more the fan operation is performed with Super Ultra LOW mode for 3 minutes Then select an operation mode 5 If the status of compressor OFF continues for 15 minutes the room temperature after selecting an operation mode COOL HEAT reselect an operation mode DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons Fan speed 31 1 Detects the room temperature Ta when the DRY operation started 2 Starts operation under conditions in the left figure according to the temperature difference between the room tempera ture and the setup temperature Ts
35. of motor connector CN31 Change airflow level Peplace main P C board to HIGH Start to operate the indoor unit in except heating operation At this time is it possible to detect DC ud or more between an of motor oag N31 YES Turn off indoor unit and remove connector from motor 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 Is it possible to change airflow level 2 between 5 B and 3 as of motor connector RS YES Check this condition within 15 seconds after starting unit NO Peplace bearing Is it possible to rotate cross flow fan by hand properly Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby At this time is it possible to detect DC 1V or more between 5 9 and O O of motor connector CN31 NO Fan motor operates normally 82 FILE NO SVM 15006 Indoor fan motor automatically starts to rotate by turning on power supply Cause The IC is built in the indoor fan motor Therefore the P C board is also mounted to inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor ma
36. remain in the refrig eration cycle Otherwise pressure in the refrig eration cycle may become abnormally high so that a rupture or personal injury may be caused 5 After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged with a large volume of refrigerant is installed in a small room it is necessary to exercise care so that even when refrigerant leaks its concentration does not exceed the marginal level If the refrigerant gas leakage occurs and its concentration exceeds the marginal level an oxygen starvation accident may result 7 Be sure to carry out installation or removal according to the installation manual Improper installation may cause refrigeration trouble water leakage electric shock fire etc 8 Unauthorized modifications to the air conditioner may be dangerous If a breakdown occurs please call a qualified air conditioner technician or electrician Improper repair s may result in water leakage electric shock and fire etc 3 2 Refrigerant Piping Installation 3 2 1 Piping Materials and 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 Fur
37. rpm RAS 10N3AV2 E1 RAS 13N3AV2 E1 RAS 16N3AV2 E RAS 10N3AV2 E1 RAS 13N3AV2 E1 RAS 16N3AV2 E 34 4 Capacity control Remote controller Set temp Ts 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 Indoor unit Room temp Ta Ts Ta Correction of Hz signal Detection of ele of compressor ctromotive force motor winding FILE NO SVM 15006 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 Detection of motor speed and rotor position Correct
38. the fan motor and connection In case of the motor and its connection is normal check the P C board Replace P C board Block distinction distinction Operation of diagnosis function Air conditioner status Check code Check code Display flashing Cause of operation error 1 Serial signal 1 Defective wiring of the Indoor unit Flashes when error is detected ri Li J and connecting operates cable miss wiring continue Flashing stop 2 Operation signal has not Outdoor unit fand outdoor unit send from the indoor unit stop start to operate when operation start when the return 3 Outdoor unit has not signal from the send return signal to the outdoor unit is indoor unit when operation normal started 4 Return signal from the outdoor unit is stop during operation Some protector hardware if exist of the outdoor unit open circuit of signal Signal circuit of indoor P C board or outdoor P C board is failure in some period Note Operation signal of the indoor unit shall be measured in the sending period as picture below Sending signal of the indoor unit when have not return signal from the outdoor unit i I 3 minutes Delay start counting from power supply ON or remote OFF 3 minutes stop Voltage variation stop or have not voltage output Measured signal voltage by apply diode 0 3 4 7 8 Time Min
39. 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 compressor operates Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely high The connection of the heat exchanger sensor short circuited CN62 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 The indoor fan motor is defective Protected operation of P C board The board is defective The connection of the motor connector is loose RAS B16N3KV2 E1 Procedure 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 Table 11 8 2 Check points Check
40. there is a leak in the connection part it may cause air suction and overpressure resulting burst or injury In pump down operations ensure to perform the following procedures Do not inject air into the refrigeration cycle Be sure to close both service valves and stop the compressor before removing the refrigerant pipe It removing the refrigerant pipe while the compressor is operating with the service valves opened it may cause to air absorbed and abnormal high pressure inside the refrigeration cycle and resulting burst or injury Do not modify the power cable connect the cable midway or use a multiple outlet extension cable Doing so may cause contact failure insulation failure or excess current resulting in fire or electrical shock Do not use any refrigerant different from the one specified for complement or replacement Otherwise abnormally high pressure may be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body Be sure to comply with local regulations codes when running the wire from the outdoor unit to the indoor unit Size of wire and wiring method etc Places where iron or other metal dust is present If iron or other metal dust adheres to or collects on the interior of the air conditioner it may spontaneously combust and start a fire If you detect any damage do not install the unit Contact your supplying dealer immediately Never modify this u
41. tighten the cap with torque in the following table Cap Cap Size H Torque 14 18 N m 1 4 to 1 8 kgf m 33 42 N m 3 3 to 4 2 kgf m 8 12 N m 0 8 to 1 2 kgf m 14 18 N m 1 4 to 1 8 kgf m Valve Rod H17 H19 Cap H22 H30 H14 H17 fla Service Port Cap Valve Rod Cap Fig 10 4 9 10 4 5 Electrical work 1 The power supply line must be supplied to outdoor unit 2 The supply voltage must be the same as the rated voltage of the air conditioner 3 Prepare the power source for exclusive use with the air conditioner NOTE e Wire type More than HO7RN F or 60245 IEC66 1 5 mm or more Connection to fixed wiring A switch or circuit breaker which disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring An approved circuit breaker or switches must be used Perform wiring works so as to allow a general wiring capacity FILE NO SVM 15006 10 4 6 Wiring connection 1 Remove the valve cover from the outdoor unit 2 Connect power cord to the terminal block N and then connect the connecting cable to the terminals as identified with their respective matched numbers on the terminal block of indoor and outdoor unit 3 Insulate the unused cords conductors from any water coming in the outdoor unit Proceed them so that they do not touch any electrical or metal p
42. variable controller and transferred to the speed system is used However it is limited to 8 stages for controller of the outdoor unit reasons of controlling 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 Indoor unit controller alarm is displayed if the fan is locked 4 According to each operation 1 Outdoor unit mode by the conditions of operation command outdoor temperature To and Outdoor fan control compressor revolution the speed of the outdoor fan shown in the 2 Fan speed gt 400 YES OFF status of when the motor stopped fan motor continues table is selected NO Air conditioner ON Remote controller Fan motor ON YES Air conditioner Alarm NO 4 Motor operates as shown in the table below In cooling operation In Heating operation 13 8 31 7 Compressor speed rps 16 8 47 9 gt 15 C gt 38 15 2 28 C To lt 5 5 C To 2 15 C To lt 5 0 C To 2 5 5 C gt 15 C gt 0 C During To 15 lt 0 C ECO mode To lt 5 5 C During To gt 38 C lt 5 5 mode To lt 38 When is abnormal When To is abnormal Compressor speed rps Outdoor fan speed
43. ventional flare tool be sure to secure dimen sion A 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 mm Outer diameter mm Thickness mm Nominal diameter Flare tool 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 diameter mm Thickness mm Flare tool for R22 clutch type Clutch type Wing nut type Nominal diameter Conventional flare tool 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 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 C mm 44 FILE NO SVM 15006 Table 3 2 6 Flare and flare nut dimensions for R22 Nominal Outer diameter Thickness Dimension mm Flare nut width diameter mm mm B C mm lo 45 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 al
44. 0 2 8 411043 B16N3KV2 E1 2710 2 9 43 to 45 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 24 FILE NO SVM 15006 8 CONTROL BLOCK DIAGRAM 8 1 Indoor Unit M C U Indoor Unit Control Unit Cold draft preventing Function Heat Exchanger Sensor Tc Room Temperature Sensor Ta L Mot 3 minute Delay at Restart for Compressor Drive Control 1 1 1 Infrared Rays Signal Receiver d A ea Fan Motor Starting Control _ gt Indoor Fan n Ss Processing Motor Control am Initializing Circuit Temperature Processing Indoor Timer Clock Frequency Oscillator Circuit Serial Signal Communication Clean Function Power Supply Circuit Converter D C circuit 1 ZN Noise Filter Serial Signal Transmitter Receiver eS APS ce ge nen ERE Power Supply ETT From Outdoor Unit Serial Signal Communication Operation Command and Information Remote Controller Infrared Rays 36 7kHz REMOTE CONTROLLER o ____ Operation Mode Selection E AUTO COOL DRY HEAT Nu Thermo Setting N Fan Speed Selection E ON TIMER Setting OFF TIMER Setting Louver AUTO Swing E Louver Direction Setting m ES Hi POWER m L5 FILE N SVM 15006 8 2 Outdoor Unit Inverter Assembly RAS B10N3KV2 E1 R
45. 0 minutes or more are required to restart the unit Gas circulation amount is down Measure gas pressure Thermo operation of compressor Gas shortage Gas leak Pipe clogging 2 If the unit stops once it does not operate until the power will be turned on again To item of Outdoor unit does not operate 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed Discharge temp error check code 03 1E Sensor temp error check code 02 1C Gas leak P M V is defective Miswiring of connecting wires of indoor outdoor units Clogging of pipe and coming off of TC sensor M Refer to the chart in 11 6 85 11 6 Check Code 1C Miswiring in indoor outdoor units and 1E Check procedure Gas leakage Discharge temp error disconnection of TS TC gas leakage sensors Check code 02 1C Check code 03 1E Valve drive check Is coil of the pulse motor valve NO FILE NO SVM 15006 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 NG temp sensors of indoor outdoor units correctly set
46. 0kW RAS B13N3KV2 E1 Outdoor DB 35 C WB 24 C Indoor Air Flow High 600 Pipe Length 5m 55 0 Voltage 230V 50 0 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outside Temperature C RAS B16N3KV2 E1 Cooling 105 100 95 90 85 80 75 70 65 Conditions 60 Indoor DB 27 C WB 19 Outdoor 35 5 Air Flow High 55 _ Pipe Length 5m Voltage 230V 50 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor temp Heating Capacity ratio 96 Capacity ratio 96 Heating 120 0 100 0 80 0 60 0 RAS B10N3KV2 E1 RAS B13N3KV2 E1 40 0 m Conditions Indoor DB 20 C WB 15 Outdoor DB 7 C WB 6 C Indoor Air Flow High Pipe Length 5m Voltage 230V 20 0 4 15 10 5 0 5 10 Outside Temperature Heating 120 DB 7 C WB 6 C Air Flow High Pipe Length 5m Outdoor temp FILE NO SVM 15006 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 durin
47. 13N3AV2 E1 INDOOR UNIT Temp measurement Indoor heat exchanger Cross flow fan TA EENS Gross flow fan DS 20m or 0 i c amp Min 2m Pressure measurement Deoxidized copper pipe 2 L Chargeless 15m Gauge attaching port _ Outer dia 6 35mm g Charge 20g m Vacuum pump connecting port Thickness 0 8mm 55 3 16 to 20m Sectional shape lt 5 2 Deoxidized copper pipe lt Outer dia 9 52mm insulator Thickness 0 8mm eee eeen Pulse Modulating valve at liquid side ASM89D16UFZ Strainer TS Outdoor heat exchanger Temp measurement I LI 1 Compressor 1 1 I LI LI Propeller fan Refrigerant amount OUTDOOR UNIT NOTE W Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating NOTE The maximum pipe length of this air conditioner is 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 RAS B16N3KV2 E1 RAS 16N3AV2 E INDOOR UNIT Indoor heat exchanger TCJ FILE NO SVM 15006 T1 Temp measurement Cross flow m P Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe m Out
48. 2 When the remote controller is set to the service mode the indoor controller diagnoses the operation condi tion and indicates the information of the self diagnosis on the display of the remote controller with the check codes If a fault is detected all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds Beep Beep Beep The timer lamp usually flashes BHz during self diagnosis 11 4 1 How to Use Remote Controller in Service Mode NN TOSHIBA Y p e TAMAA Ote AIEEE HiPOWER ECO za i move swine FAN rxe over Q Q CHECK CLOCK FILTER RESET I Ss Y cros 1 Iu A tecro3 1 5v Alphanumeric characters are used for the check codes 5155 B 156 is A h is B
49. 2 31 4 78 1040 gt als Ss gt 5 17 3 33 3 89 39 40 33 34 26 28 48 50 RAS B13N3KV2 E1 gt N N NJN ola Depth mm Fan motor output W Air flow rate Cooling Heating m min 8 6 9 5 9 5 10 4 NI ojo nj e N e Outdoor unit RAS 10N3AV2 E1 RAS 13N3AV2 E1 Dimension i m 3 33 Compressor 750 750 Twin rotary type with DC inverter variable speed control to single rotary type with DC inverter variable speed control ASM89D16UFZ Air flow rate Cooling Heating m min 30 30 37 5 37 5 Flare connection Flare connection _ essde a gt LR PS essde mm 292 1 8982 connection Usable temperature range Rccessory indoor unit mstalation iate Wireless remote controller nn f o batteries TT TOSHIBA AQ fier SSCs S T Outdoor uni The specification may be subject to change without notice for purpose of improvement FILE NO SVM 15006 2 2 Specification Unit model Indoor RAS B16N3KV2 E1 Outdoor RAS 16N3AV2 E 4 5 0 8 5 0 5 5 Cooling capacity Cooling capacity range BEE Heating capacity en __ ______ O Heating capacity range Power supply Electric Operation mode characteristic Running current A Power consumption 0 3 X 805 30 Power factor 65 BE 0 24 0 22
50. 4R Measure the resistance value of winding by using the tester Red White Position Resistance value 20 to 220 White Black 20 to 220 Black Red 20 to 220 A 4 way valve coil Model SQ 10 13k Model STF 16k Measure the resistance value of winding by using the tester 18 Resistance value SQ STF 2210 2210 1725 1720 20 Pulse motor valve coil Model CAM MD12TCTH 5 Measure the resistance value of winding by using the tester Mi Position Resistance value Gray White 43 to 490 Gray Orange 43 to 490 Red Yellow 43 to 490 Red Blue 43 to 490 Under 20 Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS outdoor heat exchanger temperature sensor TE Disconnect the connector and measure resistance value with the tester Normal temperature 25 100 m 94 20 7 12 6 10 0 7 9 4 5 FILE NO SVM 15006 11 8 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
51. AS 10N3AV2 E1 RAS B13N3KV2 E1 RAS 13N3AV2 E1 JosseJduio UE Jo0pinO LINN HOOG L00 HUN Y O IN JOION lt oq 1 1 lt oq Jeue u aye 1 1 1 L 1 1 1 Jeng L 1 1 1 1 1 1 1 jung AW dio INDIO Josues lt ov jueuno ZHINOL PNOO KouenboJj UOn994102 10108 40019 JOOPU euDiS jonuoo 041009 uomnouni G Y 1ndino 041009 uornoau109 10108 U IH 0 009 UB JOOPINO 043009 99 p 1 1 Ndl SISSUIU S MIN Ee INNVYSVIC 2018 HALNdNOI OUIDIN JeyJ 9SION Josues duiei 1e9H Josues a uonong Josues JOOPINO Josues abseyosiq nouo K yun 2 09 08 0 ZH0S AOvc 02c i LINN HOOQNI 104 FILE NO SVM 15006 RAS B16N3KV2 E1 RAS 16N3AV2 E Josseidwoy J
52. AY CAUSE ELECTRIC SHOCK CONNECT THE CONNECTING CABLE CORRECTLY IF THE CONNECTING CABLE IS CONNECTED WRONGLY ELECTRIC PARTS MAY BE DAMAGED CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEATERS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT R410A WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE IT CAUSES GENERATION OF POISONOUS GAS WHEN INSTALLING OR RE INSTALLING THE AIR CONDITIONER DO NOT INJECT AIR OR OTHER SUBSTANCES BESIDES THE DESIGNATED REFRIGERANT R410A INTO THE REFRIGERATION CYCLE IF AIR OR OTHER SUBSTANCES ARE MIXED AN ABNORMAL PRESSURE CAN OCCUR IN THE REFRIGERATING CYCLEL AND THIS CAN CAUSE AN INJURY DUE TO A PIPE RUPTURE FILE
53. After scribing slits of the front panel with a knife or a making off pin cut them with a pair of nippers or an equivalent tool Fig 10 13 16 FILE NO SVM 15006 Left hand connection with piping Bend the connecting pipe so that it is laid within 43 mm above the wall surface If the connecting pipe is laid exceeding 43 mm above the wall surface the indoor unit may unstably be set on the wall When bending the connecting pipe make sure to use a spring bender so as not to crush the pipe Bend the connection pipe within a radius of 30 mm To connect the pipe after installation of the unit figure To the forefront of flare gt Outward form of indoor unit ae R 30 mm Use polisin polyethylene S core or the like for bending pipe LJ Use the handle of screwdriver etc Fig 10 3 17 NOTE If the pipe is bent incorrectly the indoor unit may unstably be set on the wall After passing the connecting pipe through the pipe hole connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them B Bind the auxiliary pipes two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape Indoor unit YX LED Sp Connecting cable C SD Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit Ca
54. 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 temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of trouble occurrence Contents of judgment are described below Whether distinction of the current operation status meets to the operation command signal Whether protective circuit operates When no signal is received from the outdoor unit controlle
55. Delay function of compressor reactivation P M V Current release function GTr over current preventive function Defrost operation function FILE NO SVM 15006 Item Operation flow and applicable data etc 1 Basic operation 2 Cooling Heating operation The operations are performed in the following parts by controls according to cooling heating conditions 1 Receiving the operation ON signal of the remote controller the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit 2 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 Control Requierment Indoor fan motor control Louver control Operation Hz Sending of operation command signal EN Outdoor unit control Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control 4 way valve control In cooling operation ON In heating operation OFF Pulse Modulating valve control 3 AUTO operation Selection of operation
56. E NO SVM 15006 4 2 Outdoor Unit A 28 108 125 600 E es g 0 S 6 R15 I exea ojo 8 39 y S 96 hole g xxn R5 5 6 hole 36 Bib 11x14 hole 50 A detail Drawing Back leg 25 Drain outlet 2 011 x 14 Hole For 8 210 anchor bolt B Detail Drawing Front leg FAN GUARD 436 L EI TOSHIB COVER PV 2 LO LO N e i C 4 Me Liquid side Flare 26 35 Gas side Flare 9 52 10 13k i Flare 12 7 16k e 5 aL Hh 1 2 View Service port 1 7 600 2 R5 5 x 17L Ushape For 28 2 10 anchor bolt 100 or more 3 Air intlel um d 600 or more p 1 S Z Lis Air outlel 100 or more n PUDOR 2 11 x 14 Long holes For 28 210 anchor bolt 4
57. If the unit is not required to operate at this time press RESET button once more or use the remote controller to turn it off Motions The unit is in operation The green indicator is on The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times If the unit is required to operate at this time press RESET button once more or use the remote controller to turn it on 9 3 3 Power Failure During Timer Operation When the unit is turned off because of power failure during timer operation the timer operation is can celled In that case set the timer operation again NOTE The daily timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure 48 FILE NO SVM 15006 9 4 Remote control 9 4 1 Function of Push Putton Comfort sleep button COMFORT SLEEP Filter reset button FILTER Set clock button CLOCK Check button CHECK Reset button RESET 1 Infrared signal emitter ZA 9 2 Start Stop button e
58. Installation dimension 18 FILE NO SVM 15006 5 WIRING DIAGRAM RAS B10N3KV2 E1 RAS 10N3AV2 E1 RAS B13N3KV2 E1 RAS 13N3AV2 E1 COMPRESSOR P ida T LED UC cM LII Cr M FL LC ciu IM EIUS CT F Q301 306 MOS FET P C BOARD e TRIES WP 030 R321 1 n 1 rur GD J F02 FUSE 3 15 AC250V TE CONDENSER PIPE TEMP SENSOR 1 COLOR IDENTIFICATION 1 BLK BLACK WHI WHITE BRW BROWN 1 ORN ORANGE YEL YELLOW 1 1 From Main Line PUR PURPLE 2 1 Indoor Terminal Block GRN amp YEL Heat exchanger ss CN23 T _ CN30 CN31 1X2 WHI 9 gt 58 T So EN D 1 E N ES AC Motor jp T eed ed AN 2 Heat Exchanger Sensor CN63 Fan Motor TCJ YE H Varistor Line Filter 7 Color indication YEL YELLOW BLK BLACK RED RED BLU BLUE WHI WHITE GRN amp YEL GREEN amp YELLOW ireless Unit Assembly s Power Supply Circuit RAS B16N3KV2 E1 RAS 16N3AV2 E FILE NO SVM 15006
59. LLATION PLATE 43780328 FILTER AIR L 43719333 HOLDER SENSOR 43T09495 GRILLE OF AIR INLET 43T09408 PIPE HOLDER 43762344 TERMINAL COVER ASSEMBLY 43703385 BACK BODY ASSEMBLY 43766317 WIRELESS REMOTE CONTROLLER 43739344 BEARING BASE ASSEMBLY 117 FILE NO SVM 15006 13 3 Outdoor Unit RAS 10N3AV2 E1 RAS 13N3AV2 E1 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 Part a Description No No 18 43T00468 FRONT CABINET 43T58309 REACTOR 43700459 LEFT CABINET 43720319 PROPELLER FAN 43142327 BASE PLATE ASSEMBLY 43721375 FAN MOTOR 43T00452 UPPER CABINET 43147001 NUT FLANGE 43T19329 FAN GUARD 43797001 NUT 43T00562 PACKED VALVE COVER ASSEMBLY 43749335 RUBBER CUSHION 43141476 COMPRESSOR 43746376 COIL V 4WAY 43143410 CONDENSER ASSEMBLY 43T63327 COIL AWAY 43746358 VALVE PACKED 6 35 DIA 43T63319 HOLDER SENSOR 43146366 VALVE PACKED 9 52 DIA 43779305 DRAIN NIPPLE 43147331 BONNET 6 35 DIA 43739333 MOTOR BASE CONNECTION PLATE 43747332 BONNET 9 52 DIA 43763318 HOLDER SENSOR 43T00448 FIXING PLATE VALVE 43T63317 HOLDER SENSOR 43T00451 RIGHT CABINET ASSEMBLY 43T63316 HOLDER SENSOR 43746347 BODY PMV 43T19331 FIN GUARD 43763329 COIL PMV 118 FILE NO SVM 15006 13 4 Outdoor Unit RAS 16N3AV2 E 31 HOLDER SENSOR TE For PIPE OD 6 35 mm 32 HOLDE
60. NO SVM 15006 WARNING Installation work must be requested from the supplying retail dealership or professional vendors Self installation may cause water leakage electrical shock or fire as a result of improper installation Specified tools and pipe parts for model R410A are required and installation work must be done in accordance with the manual HFC type refrigerant has 1 6 times more pressure than that of conventional refrigerant R22 Use the specified pipe parts and ensure correct installation otherwise damage and or injury may be caused At the same time water leakage electrical shock and fire may occur Be sure to install the unit in a place which can sufficiently bear its weight If the load bearing of the unit is not enough or installation of the unit is improper the unit may fall and result in injury Electrical work must be performed by a qualified elecrical engineer in accordance with the code governing such installation work inernal wiring regulations and the manual A dedicated circuit and the rated voltage must be used Insufficient power supply or improper installation may cause electrical shock or fire Use a cabtyre cable to connect wires in the indoor outdoor units Midway connection stranded wire and single wire connections are not allowed Improper connection or fixing may cause a fire Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be firmly placed I
61. R SENSOR TD For PIPE OD 8 00 mm 33 HOLDER SENSOR TS For PIPE OD 9 52 mm Location T Location Part TR Description Description No No No 18 43T00468 FRONT CABINET 43758311 REACTOR 43T00459 LEFT CABINET 43720319 PROPELLER FAN 43142327 BASE PLATE ASSEMBLY 43721375 FAN MOTOR 43T00452 UPPER CABINET 43147001 NUT FLANGE 43T19329 FAN GUARD 43797001 NUT 43T00562 PACKED VALVE COVER ASSEMBLY 43749335 RUBBER CUSHION 43141446 COMPRESSOR 43146375 4 WAY VALVE 43143412 CONDENSER ASSEMBLY 43763337 4 WAY VALVE COIL ASSEMBLY 43146358 VALVE PACKED 6 35 DIA 43T63319 HOLDER SENSOR 43746374 VALVE PACKED 12 7DIA H4 43779305 DRAIN NIPPLE 43147331 BONNET 6 35 DIA 43739333 MOTOR BASE CONNECTION PLATE 43147333 BONNET 12 70 DIA 43T63318 HOLDER SENSOR 43T00448 FIXING PLATE VALVE 43T63317 HOLDER SENSOR 43T00451 RIGHT CABINET ASSEMBLY 43T63316 HOLDER SENSOR 43146347 BODY PMV 43T19331 FIN GUARD 43T63329 COIL PMV UB WN 119 FILE NO SVM 15006 13 5 P C Board Layout RAS 10N3AV2 E1 RAS 13N3AV2 E1 TE Sensor 26 TS Sensor 26 TO Sensor 6 703 Eu LUC 43762351 HEATSINK 4376536 FUSE 43160326 43T6V572 PC BOARD RAS 10N3AV2 E1 43750334 TEMPERATURE SENSOR 43T6V573 PC BOARD RAS 13N3AV2 E1 43T50304 SENSOR HEAT EXCHANGE 43T60392 TERMINAL 5P 43T62313 BASE PLATE PC
62. TO mode 3 Target temperature is 24 C 4 Louver position is set as stored position of the operating mode 5 Fanis controlled as followings 18 Mode Operation flow and applicable data etc Hi POWER button on the remote controller is pressed When Hi POWER button is pressed while the indoor unit is in Auto Cooling or Heating operation Hi POWER mark is indicated on the display of the remote controller and the unit operates as follows 1 Automatic operation The indoor unit operates in according to the current operation Cooling operation e The preset temperature drops 1 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap Heating operation e The preset temperature increases 2 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 FILE NO SVM 15006 Description 19 FILTER Indicator When the elapsed time reaches 1000 hours after air conditioner operation the FILTER indicator lights After cleaning the filters turn off the FILTER indicator How to Turn Off FILTER Indicator Press RESET button on the indoor unit NOTE If RESET button is pushed while the FILTER indicator is not lit the indoor unit will start the automatic operation 46 FILE NO
63. TOSHIBA FILE NO SVM 15006 SERVICE MANUAL AIR CONDITIONER Indoor Unit lt High Wall Heat Pump Type gt RAS B10N3KV2 E1 RAS B13N3KV2 E1 RAS B16N3KV2 E1 HFC SPLIT TYPE Outdoor Unit lt Heat Pump Type gt RAS 10N3AV2 E1 RAS 13N3AV2 E1 RAS 16N3AV2 E January 2015 10 11 12 13 FILE NO SVM 15006 CONTENTS SAFETY PRECAUTIONS daa asso aU 2 SPECIFICATIONS cu Dean rci ru ree 5 REFRIGERANT HATOA inia nn ea cux eR cn vdd Ea anona 7 CONSTRUCTION VIEWS 5 5 17 WIRING DIAGRAM 2 19 SPECIFICATIONS OF ELECTRICAL PARTS 21 REFRIGERANT CYCLE DIAGRAM eene nns 22 CONTROL BLOCK DIAGRAM eenen nennen nnn 25 OPERATION DESCRIPTION eL 28 INSTALLATION PROCEDURE 53 HOW TO DIAGNOSE THE TROUBLE eene 67 HOW TO REPLACE THE MAIN 99 EXPLODED VIEWS AND PARTS LIST
64. TS sensor for 10k TD sensor Discharge pipe temperature sensor Straight Part 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 i 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 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 114 Part name Replacement of temperature sensor for servicing only Common service parts of sensor TO TS TE These are parts for Servicing sensors Please check that the accessories shown in the right table are packed Procedure 1 Cut the sensor 100 mm longer than old one 2 Cut the protective tube after pulling out it 200 mm 3 Move the protective tu
65. The preset temperature will drop down as show on ECO operation Item No 9 e Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to setect thehours 1hr 3hr 5hr or 9 hr the COMFORT SLEEP button is pressed again means cancel comfort sleep mode The principles of comfort sleep mode are e Quietness for more comfortable When room temperature reach setting temperature Save energy by changing room temperature automatically e The air condition can shut down by itself automatically Remarks 1 Comfort sleep mode will not operate in dry mode and fan only mode 17 One Touch Comfort One touch comfort is the fully automated operation that is set according to the preferable condition in a region 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 45 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 AU
66. are shown in continuity test by the tester AS 16N3AV2 E C12 C13 C14 Heat sink IGBT side 2 RAS 10 13N3AV2 E1 yuls jeaH MCC 5009 Soldered o Soldered Surface surface o C07 C08 C09 gt 500uF 400V or C12 C13 C14 500uF or 7604 F 400V 760uF 400V Case that product is good Pointer swings once and returns slowly When performing test once again under another polarity the pointer should return Converter module 1 Turn OFF the power supply breaker RAS 10 13N3AV2 E1 2 Discharge all three capacitors completely 3 Check that the normal rectification characteristics are shown in continuity test by the tester Diode check Resistance value in good product Tester rod 50kQ or more 00 in trouble Diode block 1 Turn OFF the power supply breaker RAS 16N3AV2 E 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 in good product 10 to 20 when the multimeter probe is reversed FILE NO SVM 15006 11 9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1 Symptom Outdoor fan motor does not rotate Outdoor fan motor stops within several tens seconds though it starte
67. arging Service port Fig 3 4 1 Configuration of refrigerant charging 14 FILE NO SVM 15006 1 Be sure to make setting so that liquid can be charged 2 When using a cylinder equipped with a siphon liquid can be charged without turning it upside down It is necessary for charging refrigerant under condition of liquid because is mixed type of refrigerant Accordingly when charging refrigerant from the refrigerant cylinder to the equipment charge it turning the cylinder upside down if cylinder is not equipped with siphon Cylinder with siphon Cylinder without siphon Gauge manifold Gauge manifold OUTDOOR unit OUTDOOR unit Refrigerant Refrigerant cylinder cylinder Electronic balance Siphon R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the composi tion of the charged refrigerant changes and the characteristics of the equipment varies Fig 3 4 2 3 5 Brazing of Pipes um 1 Phosphor bronze brazing filler tends to react 3 5 1 Materials for Brazing with sulfur and produce a fragile compound water solution which may cause a gas 1 Silver brazing filler leakage Therefore use any other type of Silver brazing filler is an alloy mainly composed brazing filler at a hot spring resort etc and of silver and copper It is used to join iron copper coat the surface with a paint or copper alloy and is relat
68. arts lt Stripping length of the connecting cable Terminal ARE Epi block JS Connecting cable Power cord 1234 Connecting cable Fig 10 4 10 Earth line Power cord RAS B10N3KV2 E1 RAS B13N3KV2 E1 RAS B16N3KV2 E1 50 Hz 220 240V Single phase 60 Hz 220 230V Single phase Power source Maximum running 8 5A current 9 2 11 0 Circuit breaker 11 0A 12 0A 14 0A HO7RN F or 60245 IEC66 1 5 mm or more HO7RN F or 60245 IEC66 1 5 mm or more Power cord Connecting cable U Wrong wiring connection may cause some electrical parts burn out Be sure to comply with local cords on running the wire from indoor unit to outdoor unit size of wire and wiring method etc Every wire must be connected firmly This installation circuit breaker must be used specified for the power supply line of this air conditioner 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 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
69. be toward the thermal sensor side and tear the tip of 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 on the connector side and recycle that 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 sensor sides and solder them 8 Move the thermal constringent tubes toward the soldered parts and heat them with the dryer and constring them 9 Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again box FILE NO SVM 15006 Remarks Cutting here Thermal 100 sensor part Connector 200 Cutting here pee Thermal constringent tube Cutting here 100 h Soldered part Doner Winding the color tape 1 Store the joint part of the sensor and the connector in the electric parts 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 Parts name Sensor Remarks Length 3m Sensor Spring A For spare Sensor Spring B For spare Thermal constringent tube Including one spare Color tape 9 colors Te
70. 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 mode select an operation mode again if the compressor keeps stop status for 15 minutes In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set temperature The compressor motor speed may decrease by high temp release control Release protective operation by temp up of the indoor heat exchanger or current release control 70 FILE NO SVM 15006 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
71. board control board normal Is the voltage across C08 Refer to Primary check or this problem is one step short of power P C board block NO mesured DC 310V 340V Are DC 5V Are DC 5V DC 12V Turn off dd or DC 12V Regulator IC supplied supplied IC02 TO1 to main on again after to main board removing motor P C board are defective Replace motor Be sure to disconnect the motor connector CN10 after shut off the power supply or it will be a cause of damage of the motor 78 RAS B16N3KV2 E1 RAS 16N3AV2 E Turn off power supply once and 5 second later turn it on again N Is OPERATION indicator flashing YES Is it possible to turn on YES YES Unit operates normally Is fuse F01 of indoor control board blown Parts R01 R02 DBO1 C01 IC11 and T101 are defective Is voltage DC12V or 5V indicated on rear of indoor control board normal NO YES Is DC310 340V supplied between Does transmission mark power supply by pushing on remote controller flash 5 button normally and is its signal on remote controller transmitted properly between CN31 D Microcomputer ro is defective FILE NO SVM 15006 Operation Check Item Considerable principle cause Measures Item by symptoms Remote
72. c Setup temperature Tsc Set temperature on remote controller Ts 0 0 to 1 0 3 When the room temperature is lower 1 C or less than the setup temperature turn off the compressor FILE NO SVM 15006 Operation flow and applicable data etc Description 2 Indoor fan In cooling operation 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 COOL ON L Low L Low L Low Fan speed setup MANUAL UL Ultra Low ia SUL Super Ultra Low Indication Fan speed The fan speed broadly varies due to position of the louver etc The described value indicates one under condition of inclining downward blowing 1 When setting the fan speed to L L M M or H on the remote controller the operation is performed with the constant speed shown in Fig 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table 1 8 Fan speed M L x 3 4 L according to the setup tempera ture room temperature and heat exchanger temperature AUTO 4 Fan speed M L x 2 4 L 5 Fan speed M L x 1 4 L
73. compressor speed to Max aHz the temperature zone in which the operation can be performed with Max cHz is gradually widened after 30 minutes passed when starting ECO operation 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation FILE NO SVM 15006 em Operation flow and applicable data etc Description 10 Temporary Pressing RESET button starts the temporary opera operation tion of AUTO operation When keeping RESET button pressed for 10 seconds or more the temporary COOL operation is performed Filter lamp ON YES Press RESET button NO Did you press RESET button NO for 3 seconds or more YES Did you press RESET button for 10 seconds or more NO Switch to AUTO RESTART control Temporary AUTO operation YES Temporary COOL Operation 11 Discharge temperature control Td value Control operation Judges as an error and stops the compressor Reduce the compressor speed Reduce slowly compressor speed Keeps the 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 41 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 seconds or more Pi Pi Pi sound is heard
74. d 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 board is judged to be defective check for disconnection burning or discoloration of the copper foil pattern or this P C board 2 The P C board consists of the following 2 parts a Main P C board part DC power supply circuit Indoor fan motor control circuit CPU and peripheral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving infrared ray receiving circuit LED To check defect of the P C board follow the procedure described below 89 FILE NO SVM 15006 3 Check procedures RAS B10N3KV2 E1 RAS B13N3KV2 E1 Procedure 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 Table 11 8 1 Check points Check whether or not the fuse FO1 is blown Causes 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 CN30 and CN31 AC 220 240V 2 Between and of C08 DC 310 340V Between 12V and GND Between 5V
75. d 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 RAS 10N3AV2 E1 RAS 13N3AV2 E1 Turn OFF the breaker Disconnect two connectors CN31 of the outdoor fan motor from the outdoor P C board Does the fan rotate without trouble when rotating it with hands If the resistance value between CN31 Red lead White lead White lead Black lead Black lead Red lead of the connector CN31 Motor winding is 17 to 250 it is normal Fan motor is normal Outdoor P C board error Fan motor error 96 FILE NO SVM 15006 RAS 16N3AV2 E Turn OFF the breaker Disconnect two connectors CN300 of the outdoor fan motor from the outdoor P C board Does the fan rotate without trouble when rotating it with hands If the resistance value between CN300 Red lead White lead White
76. door outdoor units Table 11 1 Troubleshooting Procedure Troubleshooting Procedure First Confirmation Check Code 1C and 1E Primary Judgment How to Diagnose Trouble in Outdoor Unit Judgment by Flashing LED of Indoor Unit How to Check Simply the Main Parts Self Diagnosis by Remote Controller How to Simply Judge Whether Outdoor Fan Motor is Good or Bad Judgment of Trouble by Every Symptom Precautions when handling the new inverter CAUTION HIGH VOLTAGEN 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 will be incorporated starting with this unit The control circuitry has an uninsulated construction RAS B10N3KV2 E1 RAS 10N3AV2 E1 RAS B13N3KV2 E1 RAS 13N3AV2 E1 Compressor IPM Module Shared potential Fan motor Amplifier Amplifier E Fig 11 1 RAS B16N3KV2 E1 RAS 16N3AV2 E IGBT x 6 Compressor Fan motor Shared potential FILE NO SVM 15006 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 the
77. e valve once until it fits to the stopper Initialize n this time Click sound may be heard 2 Adjust the open degree of valve by super heat amount SH control 3 If the discharge temperature was exces sively up adjust the open degree of valve so that it is in the range of set tempera ture Discharge temp control 4 When defrost operation is performed the open degree of valve is adjusted accord ing to each setup conditions during preparation for defrost and during defrost operation 4 way valve is inversed 5 To turn off the compressor while the air conditioner stops by control of the thermostat or by remote controller adjust the open degree of valve to the setup value before stop of the compressor FILE NO SVM 15006 em Operation flow and applicable data etc Description 13 Self Cleaning 1 Purpose function The Self Cleaning operation is to minimize the growth of mold bacteria etc by running the fan and drying so as to keep the Unit now performing cooling or dry operation inside of the air conditioner clean Self 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 stop
78. e 42 13 Self Cleaning function aeree tbi Pee edt es DP RR URNA gx 43 14 RelTiole A or BSelSCHON ete 44 IS QUIET MOIE An Tp ate o ettet a E t C ee 45 10 C OMEORT SLEEP modetrend 45 17 One Touch Comfort 45 18 HEBOWERIMOGS Sh 558 LAU UU NEA EN M Cue 46 FIETER Indicator Coetu uet Oe geeen dette unt ts uetus 46 Auto Restart Function 9 3 1 How to Set the Auto Restart Function 47 9 3 2 How to Cancel the Auto Restart Function 48 9 3 3 Power Failure During Timer Operation se 48 Remote Control 9 4 1 Function of Push Putton seia nianon ana ene ire nennen nennen nnns ara 49 9 4 2 Operation of remote control nanne eennnen ern enrenenenren ver enensnnenseneennnnn ennen eenenens 49 9 4 3 Display of Remote Control nnh nnne enne 52 29 FILE NO SVM 15006 Item Operation flow and applicable data etc 1 Basic Operation control operation Receiving the user s operation condition setup the operation statuses of indoor outdoor units are controlled 1 The operation conditions are selected by the remote controller as shown in the below 2 A signal is sent by ON button of the remote controller 3 The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below 4 The indoor controller controls the indoor fan motor a
79. e cover as shown on figure 2 and 3 5 Arrange the control wire as detail and specification as shown on figure 4 6 Securely connect the control wire to terminal of display unit board as shown on figure 5 tighten firmly but not over 0 12 N m 0 01 kgf m 7 Setthe control wire throughout at slot on front cover of display unit then reassembly display with main casing by reverse process of figure 2 and 3 Make sure the control wire must not be pressed by front and rear cover of display unit 8 Set the control wire out from indoor unit same portion as power supply and connecting cable as shown on figure 6 9 Reassembly the indoor unit by reverse process of 1 to 3 Air inlet grille Front panel gt b Display board E Display unit Fig 10 3 7 FILE NO SVM 15006 70 mm Wire size 28 22AWG or 0 08 0 32 mm Outer diameter not over 4 7 mm control wire length 30 m or less Notch for wire out ART AE 2A VO ZT FF WESS SS COMPONENT SIDE A o Tighten firmly but not over Terminal 0 12 N m 0 01 kgf m Control wire Control wire Fig 10 3 8 For remote controller 1 Remove cover of remote controller by sliding down and take it out 2 If batteries are exist please take them out The combination of using wire controller and batteries may cause of batteries explosion 3 Make hol
80. e for insert control wire by use screwdriver break the polyester sheet as shown on figure 7 4 Insert control wire from rear side of remote controller as shown on figure 8 5 Fix control wire which arrange as shown on figure 9 and 10 to terminal by provided screws tighten firmly but not over 0 25 N m 0 03 kgf m 6 Set control wire through gutter way at rear side of remote controller as shown on figure 11 T Fix provided screw 3 1 x 16L on the wall to hang remote controller as shown on figure 2 8 Mark and arrange hole for fix below screw 273 1 x 251 as shown on figure 12 9 Assembly battery cover which provided with accessory bag then use provide screw 3 1 x 25L to fix battery cover together with wall as shown on figure 13 tighten firmly but not over 0 15 N m 0 02 kgf m 10 Reassembly cover of remote controller Polyester sheet close hole for insert control wire Control wire 10 Wire size 28 22 AWG 0 08 0 32 mm Outer diameter not over 4 7 mm control wire length 30 m or less Control wire Terminal Tighten firmly but not over 0 25 N m 0 03 kgf m Fig 10 3 9 59 Control wire Control wire T Screw 23 1 16L for Hole for hang hang remote controller remote controller Remote controller Screw 23 1 251 for fix battery cover B Tighten firmly but not over 0 15 Nam 0 02 kgf m Fig
81. e the 2 fixing screws 3 Remove the electrical part base 105 FILE NO SVM 15006 Remarks Replace terminal block microcomputer ass y and the board ass y 12 3 Outdoor Unit Part name Common procedure Procedure 1 Detachment Wear gloves for this job Otherwise you may injure your hands on the parts etc 1 Stop operation of the air conditioner and turn off the main switch of the breaker for air conditioner 2 Remove the valve cover 51174 10L 3 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 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 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 ST1TO 4 x 10L 3 pcs Insert the upper part into the square hole of the side cabinet set hook claws of the valve cover to square holes at three positions
82. emote control e Operation mode is set on AUTOMATIC operation preset temperature is 24 and fan operation is automatic speed 8 TIMER OPERATION Setting the ON Timer Setting the OFF Timer 4 1 Press ON Set the desired ON timer vj A Press Ot Ka Set the desired OFF timer 2 Press SET Set the timer Press Set the timer 3 Press 258 Cancel the timer Press ELR Daily timer allows the user to set both the ON amp OFF timers and will be activated on a daily basis Setting Daily Timer a 1 Press Set the ON timer Press SET ser t 2 Press Sa Sel the OFF timer Press button during the f or v mark flashing During the daily timer is activation both arrows f or 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 9 FILE NO SVM 15006 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 y
83. er dia 6 35mm Thickness 0 8mm a Sectional shape of heat insulator Deoxidized copper pipe Outer dia 12 7mm 16 Thickness 0 8mm Compressor DA131S1B 31FZ TS Outdoor heat exchanger Split capillary Temp measurement T2 Propeller fan NOTE Pulse Modulating valve at liquid side lt Bel 20 lt Min 2m g 8 Chargeless 15m 95 5 Charge 20g m 55 5 16 to 20m lt lt L 1 1 1 1 Refrigerant amount 1 1 9 OUTDOOR UNIT NOTE Wi Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating The maximum pipe length of this air conditioner is 15 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 293 5 FILE NO SVM 15006 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 zo sse Heating Tempeature Model name Standard Heat exchanger Indoor Outdoor Compressor condition C RAS pressure pipe temp fan mode fan mode revolution Indoor Outdoor P MPa 20 7 6 B10N3KV2 E1 2 5 to 2 7 39to 41 B13N3KV2 E1 2 6t
84. er to normal function 2 After finished the diagnosis by the remote controller turn OFF power supply and turn its ON again to reset the air conditioner to normal operation However the check codes are not deleted from memory of the microcomputer 3 After servicing finished press CLR button of remote controller under service mode status to send code 7F to the indoor unit The check code stored in memory is cleared Block distinction distinction code Indoor P C board Table 11 4 1 Operation of diagnosis function Air conditioner status Cause of operation TA sensor The room temperature sensor is short Circuit or disconnection TC sensor The heat exchanger temperature sensor of the indoor unit is out of place disconnection short circuit or migration Fan motor of the indoor unit All OFF is failure lock rotor short circuit disconnection etc Or its circuit on P C board has problem Other trouble on the indoor P C board Depend on 73 Display flashing error Flashes when error is detected Flashes when error is detected Flashes when error is detected Depend on cause of failure Action and Judgment Check the sensor and connection In case of the sensor and its connection is normal check the P C board Check the sensor TC and connection In case of the sensor and its connection is normal check the P C board Check
85. eration is performed with 4 way valve reverse defrost system Start of heating operation Outdoor heat exchanger temperature 0 1015 34 Operation time E Minute The minimum value of Te sensor 10 to 15 minutes after start of operation is stored in memory as TeO Table 1 When TE gt 2 5 continued for 2 minutes in A zone defrost operation starts When the operation continued for 2 minutes in B zone defrost operation starts When TE 2 3 continued for 2 minutes in C zone defrost operation starts FILE NO SVM 15006 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 Defrost operation Defrost operation in A to C zones 1 Stop operation of the compressor for 20 seconds 2 Invert ON 4 way valve 10 seconds after stop of the compressor 3 The outdoor fan stops at the same time when the compressor stops 4 When temperature of the indoor heat exchanger becomes 38 or lower stop the indoor fan Finish of defrost operation gt Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 C or higher 2 Temperature of outdoor heat exchanger is kept at 5 C or higher for 80 seconds 3 Defrost operation continues for 15 minutes Returning fro
86. erminals of the C07 WARNING ELECTRIC SHOCK is indicated electrolytic capacitor 500uF 400V or 760uF 400V on P C board and then perform discharging Discharging position Discharging period Plugof _ 10 seconds or more Soldering iron Inverter cover P C board Soldered surface il Fig 11 4 68 FILE NO SVM 15006 RAS B16N3KV2 E1 RAS 16N3AV2 E Sensor leads Fig 11 5 Do NOT lay the circuit board assembly flat Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280 to 380V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc Discharging method gt 1 Remove the inverter cover plating by opening four mounting claws 2 As shown below connect the discharge resistance approx 100040W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 500uF 400V or 760uF 400V on P C board and then perform discharging Discharging position Discharging period 10 seconds or more Plug of soldering iron
87. es 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 Clamp meter 2 Thermometer 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 Also prepare the following equipments for other installation method and run check 1 3 Insulation resistance tester 4 Electroscope 1 Vacuum pump 4 Reamer 9 Hole core drill 265 Use vacuum pump by attaching 5 Pipe bender 10 Hexagon wrench vacuum pump adapter 6 Level vial Opposite side 4mm 2 Torque wrench For 26 35 29 52 7 Screwdriver 11 Tape measure 3 Pipe cutter 8 Spanner or Monkey wrench 12 Metal saw E FILE NO SVM 15006 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 SE When the compound gauges pointer has indicated 0 1 Mpa 76 cmHg place the handle Low in the fully closed position and turn o
88. essor is high current All OFF Flashes after Check installation conditions such as J though operation Hz is error is detected packed valve opening refrigerant FILE SVM I 11 5 Judgment of Trouble by Every Symptom NO SVM 15006 11 5 1 Indoor Unit Including Remote Controller 1 Power is not turned on Does not operate entirely Primary check 1 Is the supply voltage normal 2 15 the normal voltage provided to the outdoor unit 3 Is the crossover cable connected properly 4 Is the fuse FO1 blown RAS B10N3KV2 E1 RAS 10N3AV2 E1 RAS B13N3KV2 E1 RAS 13N3AV2 E1 Turn off power supply once and 5 Operation second later turn it Check item on again Conceivable principle cause NO Is OPERATION lamp blinking Measure YES Item by symptoms Does transmission mark on remote control Is it possible to turn on power supply by pressing NO NO Remote control is defective Refer to 4 Troubleshooting for Remote Control flash normally BUR and is its signal on remote transmitted control properly YES YES Unit operates normally Parts Does Is fuse F01 yes DB01 C08 T01 fan motor i and ICO2 connector board blown are defective between 1 and 3 short circuit Is voltage DC 12V or 5V indicated YES Microcomputer ds rear of indoor is defective
89. f the air conditioner when the pump stops If oil inside of the vacuum pump enters the air conditioner which use R410A refrigeration cycle trouble may result 1 Connect the charge hose from the manifold valve to the Unit N m Outer dia of copper pipe Tightening torque 26 35 16 to 18 1 6 to 1 8 kgf m 29 52 30 to 42 3 0 to 4 2 kgf m service port of the gas side packed valve at gas sige 2 Connect the charge hose to the port of the vacuum pump 3 Open fully the low pressure side handle of the 50 to 62 5 0 to 6 2 kgf m Flare at indoor unit side Sj gt Flare at outdoor unit side Fig 10 4 6 Shaping pipes p Mark line Fig 10 4 7 1 How to shape the pipes Shape the pipes along the incused line on the outdoor unit 2 How to fit position of the pipes Put the edges of the pipes to the place with a distance of 85 mm from the incused line 10 4 4 Evacuating After the piping has been connected to the indoor unit you can perform the air purge together at once AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump Do not use the refrigerant in the outdoor unit For details see the manual of the vacuum pump 64 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
90. f the room is not properly ventilated Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed very carefully when conducting checks since directly touching the parts on the control circuit board may result in electric shocks 12 1 Indoor Unit Part name Procedures Remarks Front panel 1 Stop operation of the air conditioner and turn off its main power supply 2 Open the air inlet grille push the arm toward the outside and remove the grille 3 Remove the left and right air filters Part name Front panel Procedures 4 Press PUSH part under the front panel and remove hooks of the front panel from the installation plate 5 Remove the front panel fixing screws 2 pcs 6 Take off three hooks of panel from rear side How to assemble the front panel FILE NO SVM 15006 Remarks Installation plate Front panel 2 Screws Three hooks 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 3 pcs at the top side of the front panel to the rear plate 2 T
91. ff the vacuum pump s power switch Connect the charge hose to packed valve service port at the outdoor unit s gas side Keep the status as it is for 1 to 2 minutes and ensure Connect the charge hose to the vacuum pump that the compound gauge s pointer does not return adapter Set the refrigerant cylinder to the electronic balance Open fully both packed valves at liquid and gas connect the connecting hose to the cylinder and the sides connecting port of the electronic balance and charge liquid refrigerant For refrigerant charging see the figure below Place the handle of the gauge manifold Low in the fully opened position and turn on the vacuum pump s power switch Then evacuating the refrigerant in the cycle 1 Never charge refrigerant exceeding the specified amount 2 If the specified amount of refrigerant cannot be charged charge refrigerant bit by bit in COOL mode 3 Do not carry out additional charging When additional charging is carried out if refrigerant leaks the refrigerant composition changes in the refrigeration cycle that is characteristics of the air conditioner changes refrigerant exceeding the specified amount is charged and working pressure in the refrigeration cycle becomes abnormally high pressure and may cause a rupture or personal injury Indoor unit Outdoor unit Refrigerant cylinder Bs siphon Open close valve for charging Electronic balance for EE ch
92. fide gas A place where high frequency waves are likely to be generated as from audio equipment C welders and medical equipment 4 Anchor bolts FILE NO SVM 15006 Fig 10 4 2 10 4 3 Refrigerant piping connection lt Flaring gt 1 Cut the pipe with a pipe cutter 90 Obliquity roughness X Warp Ay 4 4 Fig 10 4 3 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm Rigid cluch type Outer dia of copper pipe Imperial 26 35 1 0 to 1 5 9 52 1 0 to 1 5 2 12 70 1 0 to 1 5 t Die Pipe Fig 10 4 4 Imperial wing nut type R410A 1 5 to 2 0 1 5 to 2 0 2 0 to 2 5 Outer dia of copper pipe 26 35 29 52 12 70 lt Tightening connection Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers Then tighten the nut with a spanner and torque wrench as shown in the figure Half union Flare nut Externally Internally threaded side 2 threaded side Use a wrench to secure Use a torque wrench to secure Fig 10 4 5 FILE NO SVM 15006 Using a vacuum pump CAUTION i Le Do not apply excess torque Otherwise the nut may crack depending on the conditions 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 o
93. g installation work or servicing time The next section describes the precautions for air conditioner using the new refrigerant Conforming to contents of the next section together with the general cautions included in this manual perform the correct and safe work 3 1 Safety During Installation Servicing As R410A s pressure is about 1 6 times higher than that of R22 improper installation servicing may cause a serious trouble By using tools and materi als exclusive for R410A it is necessary to carry out installation servicing safely while taking the following precautions into consideration 1 Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A If other refrigerant than R410A is mixed pressure in the refrigeration cycle becomes abnormally high and it may cause personal injury etc by a rupture 2 Confirm the used refrigerant name and use tools and materials exclusive for the refrigerant R410A The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air condi tioner using R410A as refrigerant To prevent mischarging the diameter of the service port differs from that of R22 3 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
94. he capacity proportional control compressor which can change the motor speed in the range from 11 to 96 rps is mounted The DC motor drive circuit is mounted to the indoor unit The compressor and the inverter to control fan motor are mounted to the outdoor unit The entire air conditioner is mainly controlled by the indoor unit controller The indoor unit controller drives the indoor fan motor based upon command sent from the remote controller and transfers the operation command to the outdoor unit controller The outdoor unit controller receives operation com mand from the indoor unit side and controls the outdoor fan and the pulse Modulating valve PM V Besides detecting revolution position of the compres sor motor the outdoor unit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power current transfer timing so that motors drive according to the operation command And then the outdoor unit controller transfers reversely the operating status information of the outdoor unit to control the indoor unit controller As the compressor adopts four pole brushless DC motor the frequency of the supply power from inverter to compressor is two times cycles of the actual number of revolution 1 Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and assumes the following functions
95. he connecting cable through the cable slot on the rear panel so that it protrudes about 20 cm from the front 5 Insert the connecting cable fully into the terminal block and secure it tightly with screws Tighten firmly but not over 1 2 N m 0 12 kgf m Secure the connecting cable with the cord clamp 8 Fixthe terminal cover rear plate bushing and air inlet grille on the indoor unit CAUTION Be sure to refer to the wiring system diagram labeled inside the front panel Check local electrical cords and also any specific wiring instructions or limitations NO Connecting cable X boyss Terminal block Cord clamp DE ls Oom i 1 00mm _ j Earth line 000 5 Terminal cover D Stripping length of the connecting cable Fig 10 3 5 e Use stranded wire only e Wire type More than HO7RN F or 60245 IEC66 1 5 mm or more How to connect remote controller for wire gt Control wire Remote controller Fig 10 3 6 For indoor unit 1 Open the air inlet grille upward 2 Securely remove two screws at the front panel 3 Slightly open the iower part of the front panel thon pull the upper part of the front toward you to remove it from the rear plate as shown on figure 1 4 After removing the front panel remove the display unit and open th
96. he outdoor side drain hose a wavy shape 50 mm G or more xX A X x xX T 7 b Do not put Do not put the drain the drain hose end hose end in into water the drainage ditch Fig 10 3 20 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 2 Inside the room xat S Extension drain hose Drain hose Fig 10 3 21 Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping This air conditioner has the structure designed to drain water collected from dew which forms on the back of the indoor unit to the drain pan Therefore do not store the power cord and other parts at a height above the drain guide Wall Drain guide Space for pipes VL Fig 10 3 22 62 10 4 Outdoor Unit 10 4 1 Installation place e place which provides the spaces around the outdoor unit as shown in the left diagram e place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration A place where the operation noise and discharged air do not disturb your neighbors A place which is not exposed to a strong wind A
97. ic capacitor are in Voltage Rate 10 x 1 414 Replace control board Turn ON the unit by remote controller and wait for 3 min Cooling 17 87 FILE NO SVM 15006 Connect discharge resistance approx 1000 40W or soldering iron plug between terminals of the electro lytic capacitor 500yF or 760uF Discharging position Discharging period 10 seconds or more Plug of soldering iron FILE NO SVM 15006 Does outdoor fan NO operate normally YES Turn OFF power supply YES Does compresser operate normally NO Remove outdoor fan connector NO Check winding resistance by ohmmeter are correct Check rotor locking by rotate with hand Can it rotate Replace outdoor Replace control fan motor board Compressor is normal Turn OFF power supply Check compressor winding resistance correct Replace compressor Turn ON power supply Check voltage of the NO compressor connector is in rate AC150V 270V YES Replace Replace control compressor board 88 FILE NO SVM 15006 11 8 How to Check Simply the Main Parts 11 8 1 How to Check the P C Board Indoor Unit 1 Operating precautions 1 When removing the front panel or the 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 an
98. ighten two screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound Part name Electric parts box assembly Procedures 1 Follow the procedure up to 3 in Q above 2 Remove screw of earth lead attached to the end plate of the evaporator 3 Remove the lead wire cover and remove connector for the fan motor and connec tor for the louver motor from the electric parts box assembly 4 Pull out TC sensor from sensor holder of the evaporator 5 Disengage the display unit by simply pushing at the top of the display unit 6 Remove the fixing screw that secures the electric parts box assembly and remove the assembly How to assemble the electric parts box gt 1 Hook the top part of the electric parts box assembly onto the claws on the back body Now attach the display unit Connect the connectors for the fan motor and louver motor 2 Secure the grounding wire using the fixing screw Insert the TC sensor into the sensor holder Be absolutely sure to loop the grounding wire and TC sensor leads once at the bottom 100 FILE NO SVM 15006 Remarks e Electric part box cover TC sensor Fan motor Earth Screw connector Fixing screw AC fan motor connector Louver motor connector FILE NO SVM 15006 Part name Procedures Remarks Horizontal louver 1 Remove shaft of the horizontal louver from the back body
99. ign 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 Tightening torque of torque wrenches available on the market kgf cm Nominal Outer diameter Tightening torque diameter mm 14 to 18 140 to 180 16 160 18 180 33 10 42 330 10 420 42 420 50 to 62 500 to 620 55 550 63 to 77 630 to 770 65 650 mI FILE NO SVM 15006 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 refrigera
100. imer function depend on presetting of timer function ON or OFF Compressor depend on presetting per room temperature OFF CDU fan ON or 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 Turn off by remote controller or Automatically turn i timer off function 14 Remote A or B Setting the remote controller 1 Purpose selection To separate using of remote control for each indoor This operation is to operate only one unit in case of 2 air conditioner are installed nearly indoor unit using one remote controller Remote Control B Setup 1 Press RESET button on the indoor unit to turn the air conditioner ON situation where two indoor units have 2 Point the remote control at the indoor unit been installed in the same room or 3 Push and hold CHK e button on the Remote nearby rooms this operation prevents the Control by the tip of the pencil 00 will be shown remote controller signal from being shown on the display received simultaneously by both units 4 Press MODE e during pushing CHK e B will thus preventing both units from operating show on the display and 00 will disappear and Operation the air conditioner will turn OFF The Remote The indoor unit on which the remote Control B is memorized controller selection has been set to B receives the signal of the remote contro
101. ing NOTE Using a tester measure the resistance value of each winding coil Useathin test rod RPG 240 25A Do not disconnect the connector while the fan motor is rotating For P C board side proceed to the item Only indoor fan does not operate of Judgment of Trouble by Every Symptom 3 BRW CN11 2 GRY 1 P C board Position P C board Resistance value Between Black Red Between 3 Black White Between Red 5 White 606 910 81 FILE NO SVM 15006 RAS B16N3KV2 E1 RAS 16N3AV2 E Turn off power supply once and turn it on again Does fan motor YES continue to operate Start to operate indoor unit in cooling operation at airflow level LOW Does indoor NO fan operate YES Is it possible to detect DC 1V or more between and 3 of motor connector CN31 Peplace indoor fan motor YES Is it possible to detect DC 310 340V between D and 3 of motor connector CN31 n Turn off indoor unit and remove Motor connection condition connector from motor Is it possible to detect DC 15V Then push 5 button between 2 3 and of on remote controller to stop motor connector ENS flashing lamp on indoor unit Is it possible to detect DC 15V between 2 3 and 3
102. ins cap Clip drain cap by needle nose plier and pull out a H H H H H a Fig 10 3 11 How to install the drain hose Firmly insert drain hose connecting part until hitting on a heat insulator and fix it with a screw How to remove the drain hose The drain hose can be removed by take off screw after that twisting and pulling When removing the drain hose be careful of any sharp edges of steel plate The edges can cause injuries To install the drain hose insert the drain hose firmly until the connection part contacts with heat insulator and the secure it with original screw Heat insulator Fig 10 3 12 Drain hose How to fix the drains cap 1 Insert hexagonal wrench 4 mm in a center head Fig 10 13 13 2 Firmly insert drains cap No gap P Do not apply lubricating oil refrigerant machine oil when 4 inserting the drain cap Application causes deterioration and drain leakage of the plug Insert a hexagon wrench 4 mm Fig 10 13 14 Firmly insert the drain hose and drain cap otherwise water may leak n case of right or left piping After scribing slits of the front panel with a knife or a making off pin cut them with a pair of nippers or an equivalent tool Fig 10 13 15 n case of bottom right or bottom left piping
103. ion value of Hz signal lt Operating Hz Inverter output change Commutation timing change Change of compressor speed 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 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 Outdoor temp Cooling current release value Heating current release value 5 1A 6 07A 7 2A 9 2A 8 77A 57A 7 12A 39 4 5 7 8 47A 15 5 10 5 877A 877A Outdoor unit inverter main Outdoor temp To circuit control current Setup of current release point Operating current High Setup value Reduce compressor speed Current decrease rc Capacity control continues 6 Release protective control by tempera ture of indoor heat exchanger Indoor heat exchanger temperature Indoo
104. it is outdoor unit open normal circuit of signal Signal circuit of indoor P C board or outdoor P C board is failure in some period 76 error is detected 1 Check power supply Rate 10 2 If the air conditioner repeat operates and stop with interval of approx 10 to 40 minutes Check protector hardware such as Hi Pressure switch Thermal Relay etc Check refrigerant amount packed valve opening and any possibility cause which may affect high temperature or high pressure 3 Check operation signal of the indoor unit by using diode Measure voltage atterminal block of the indoor unit between No 2 and No 3 or L2 and S If signal is varied 15 60V continuously replace inverter P C board If signal is not varied replace indoor P C board FILE NO SVM 15006 Block distinction Operation of diagnosis function Check Check Alr Display Action and Judgment Block Cause of operation conditioner code code status flashing error Compressor does not rotate All OFF Flashes after Remove connecting lead wire of the Because of missed wiring error is detected compressor and operate again missed phase or shortage 8 times If outdoor fan does not operate or operation but stop after some period replace the inverter P C board If outdoor fan operates normally measure 3 Phase output of inverter P C board 150 270VAC at the connecting lead wire of compressor If 3 Phase output is abnormal
105. ively expensive though 2 When performing brazing again at time of it excels in solderability servicing use the same type of brazing filler 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 5 2 Flux 3 Low temperature brazing filler 1 Reason why flux is necessary Low temperature brazing filler is generally called By removing the oxide film and any foreign solder and is an alloy of tin and lead Since it is matter on the metal surface it assists the flow weak in adhesive strength do not use it for of brazing filler refrigerant pipes In the brazing process it prevents the metal surface from being oxidized By reducing the brazing filler s surface tension the brazing filler adheres better to the treated metal gt 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 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 Types of flux Noncorrosive flux Genera
106. l Note 1 Repeat above step to reset Remote Control ler also set to B to be A At the factory the remote controller 2 Remote Control A has not A display selection is set to A on all the indoor 3 Default setting of Remote Control from units There is no A setting display factory is A Description When operating one indoor unit in a B Display 00 Display 15 QUIET mode Operation flow and applicable data etc When the QUIET button is pressed the fan of the indoor unit will be restricted the revolving speed at speed L until the QUIET button is pressed once again cancel Quiet mode FILE NO SVM 15006 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 16 COMFORT SLEEP mode Cooling mode The preset temperature will increase as show on ECO operation Item No 9 e Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to select the hours 1hr 3hr 5hr or 9hr the COMFORT SLEEP button is pressed again means cancel comfort sleep mode Heating mode e
107. l B is memorized Picture FILE NO SVM 15006 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 Fig 10 5 2 10 5 3 Test operation To switch the TEST RUN COOL mode press RESET button for 10 sec The beeper will make a short beep RESET button Fig 10 5 3 10 5 4 Auto restart setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure The product was shipped with Auto Restart function the off position Turn it on as required How to set the auto restart gt 1 Press and hold the RESET button on the indoor unit 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 seconds 2 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink In case of ON timer or OFF timer are set AUTO RESTART OPERATION dose not activate FILE NO SVM 15006 11 HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units Therefore diagnose troubles according to the trouble diagnosis procedure as described below Refer to the check points in servicing written on the wiring diagrams attached to the in
108. ler 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 Flange nut 111 Part name Compressor Procedure 1 Perform work of item 1 of D and G 2 Extract refrigerant gas 3 Remove the partition board ST1T 4 x 10L 3 pcs 4 Remove the sound insulation material 5 Remove terminal cover of the compressor and disconnect lead wire of the compressor from the terminal 6 Remove pipe connected to the compressor with a burner Take care to keep the 4 way valve away from naked flames Otherwise it may malfunction 7 Remove the fixing screw of the bottom plate and heat exchanger ST1T 4 x 10L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST1T 4 x 10L 1 pc 9 Pull upward the refrigeration cycle 10 Remove NUT 3 pcs fixing the compres sor to the bottom plate P Ha Nu Cot du A 4 D amp Lt c 21 1 M w f L3 VN p IT Partition LH Tl Wa __ Compressor FILE NO SVM 15006 Remarks Reactor 1 Perform work of item 1 of and 2 Remove screws fixing the reactors ST1T 4 x 10L 2 pcs 112 Part name Electronic expansi
109. lly it is a 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 FILE NO SVM 15006 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring in the pipe interior during brazing it is effective to proceed with brazing while letting dry Nitrogen gas N2 flow Never use gas other than Nitrogen gas 1 Brazing method to prevent oxidation 1 Attach a reducing valve and a flow meter to the Nitrogen gas cylinder 2 Use a copper pipe to direct the piping mate rial and attach a flow meter to the cylinder 3 Apply a seal onto the clearance between the piping material and inserted copper pipe for Nitrogen in order to prevent backflow of the Nitrogen gas 4 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
110. m defrost operation 1 Stop operation of the compressor for approx 50 seconds 2 Invert OFF 4 way valve approx 40 seconds after stop of the compressor 3 The outdoor fan starts rotating at the same time when the compressor starts FILE NO SVM 15006 Item 8 Louver 1 Louver position control Operation flow and applicable data etc This function controls the air direction of the indoor unit e The position is automatically controlled according to the operation mode COOL HEAT e The set louver position is stored in memory by the microcomputer and the louver returns to the stored position when the next operation is performed Cooling Heating memory position The angle of the louver is indicated as the louver closes fully is 0 1 Louver position in cooling operation Initial setting of Cooling storage position Louver Directs downward 40 9 2 Louver position in heating operation Heating operation AUTO HEAT Initial setting of Heating storage position Louver Directs downward 80 5 2 Air direction adjustment Horizontal blowing Inclined Blowing Inclined Horizontal blowing downward blowing blowing liker 24 3 Swing e Swing operation is performed in width 35 with the stop position as the center e If the stop positi
111. mproper cover installation may cause increased heat fire or electrical shock at the terminal area Be sure to use only approved accessories or the specified parts Failure to do so may cause the unit to fall water leakage fire or electrical shock After the installation work ensure that there is no leakage of refrigerant gas If the refrigerant gas leaks out of the pipe into the room and is heated by fire or something else from a fan heater stove or gas range it causes generation of poisonous gas Make sure the equipment is properly earthed Do not connect the earth wire to a gas pipe water pipe lightning conductor or telephone earth wire Improper earth work may be the cause of electrical shock Do not install the unit where flammable gas may leak It there is any gas leakage or accumulation around the unit it can cause a fire Do not select a location for installation where there may be excessive water or humidity such as a bathroom Deterioration of insulation may cause elestrical shock or fire Installation work must be performed following the instructions in this installation manual Improper installation may cause water leakage electrical shock or fire Check the following items before operating the unit Be sure that the pipe connection is well placed and there are no leaks Check that the service valve is open If the service valve is closed it may cause overpressure and result in compressor damage At the same time if
112. nd louver motor 5 The indoor controller sends the operation command to the outdoor controller and sends receives the control status with a serial signal 6 The outdoor controller controls the operation as shown in the left and also controls the compres sor outdoor fan motor 4 way valve and pulse Modulating valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Air conditioner Air purifier Operation select COOL HEAT AUTO DRY Air direction Swing Air volume select AUTO LOW LOW MED MED HIGH ECO e COMFORT SLEEP ON timer setup e QUIET OFF timer setup PRESET Hi POWER ONE TOUCH Indoor unit Signal receiving Indoor unit control Command signal generating function of Indoor unit control indoor unit operation Indoor unit control _ Calculation function temperature calculation Indoor fan motor Activation compensation function of indoor fan Louver motor Operation command Cold draft preventive function Timer function Serial signal send receive Indoor heat exchanger release control 4 Outdoor unit Serial signal send receive Outdoor unit control Inverter Frequency control of inverter output Waveform composite function Calculation function Compressor Temperature calculation Outdoor fan motor AD conversion function 4 way valve Quick heating function Pulse Modulating valve
113. nit by removing any of the safety guards Do not install in a place which cannot bear the weight of the unit Personal injury and property damage can result if the unit falls FILE NO SVM 15006 CAUTION Please read this installation manual carefbefore installing the unit It contains further important instructions for proper installation Exposure of unit to water or other moisture before installation could result in electric shock Do not store it in a wet basement or expose to rain or water e After unpacking the unit examine it carefully for possible damage Do not install in a place that can increase the vibration of the unit Do not install in a place that can amplify the noise level of the unit or where noise and discharged air might disturb neighbors This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the unit is installed Failure to do so may cause electrical shock Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit Ensure that drained water is discharged Improper drainage can result in water leakage causing water damage to furniture Tighten the flare nut with a torque wrench using the prescribed method Do not apply excess torque Otherwise the nut may crack after a long period of usage and it may cause the leakage of refrigerant Wear gloves heavy gloves such as cotton gloves for installati
114. om outdoor Unit m GRN amp YEL 777 a Heat exchanger DCH CN27 SHEET METAL noar WH WH Te EN RED 1 ae arg RN Ng DEK Sg 52 4X4 DC Motor 2 2 BLU sanf CN3 Fan Motor B Heat Exchanger Sensor CN63 TCJ DOH 1X1 33 gt 2X2 4X4 Heat Exchanger Sensor CN62 5X5 BLU Tite Louver Motor 1X1 i gt 2X2 Ene S lE CN22 Thermo Sensor CN61 DC 5VO WHI TA DC 12 0 E Dc1svo 8 2 re S 3 Ses 88 2 5 Color indication 2 BRWBROWN fo m o YEL YELLOW ge BLK BLACK So Jr REDRED ES BLU BLUE ET WHI WHITE eee GRN amp YEL 9o GREEN amp YELLOW BLK Main P C Board WP 026 CN81 WHI 20 FILE NO SVM 15006 6 SPECIFICATIONS OF ELECTRICAL PARTS 6 1 Indoor Unit Fan motor RPG 240 25A AC 240V 20W 3 Heat exchanger temp sensor TC sensor 4 Louver motor 24BYJ48 HTP Output Rated 1W 16 poles DC12V 6 2 Outdoor Unit Parse me Spetter 3 Suction temp sensor TS sensor 4 Discharge temp sensor TD sensor 5 Outside air temp sensor TO sensor Heat exchanger temp sensor TE sensor 2 s prwmv O owwowrrs ou O 10 Coil for 4 way valve 10 13k SQA2522G 000352 AC220 240V STF HO1AJ1872A1 AC220 240V FILE NO SVM 15006 7 REFRIGERANT CYCLE DIAGRAM 7 1 Refrigerant Cycle Diagram RAS B10N3KV2 E1 RAS 10N3AV2 E1 RAS B13N3KV2 E1 RAS
115. on exceeds either upper or lower limit position swing operation is performed in width 35 from the limit which the stop position exceeded Description e The louver position can be arbitrarily set up by pressing FIX button e Swing When pressing SWING button during operation the louver starts swinging 39 9 Operation flow and applicable data etc When pressing ECO button on the remote controller a operation Economic operation is performed Room temp Set temp Cooling operation This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure n on E ma DRY max COOL min 6 x 5 COOL min DRY max COOL min 6 x 4 COOL min DRY max COOL min 6 x 3 COOL min DRY max COOL min 6 x 2 COOL min DRY max COOL min 6 x 1 COOL min Compressor speed OHz B zone to cHz Hz B10N3KV2 E1 B16N3KV2 E1 B13N3KV2 E1 m 40 FILE NO SVM 15006 Description Cooling operation 1 The control target temperature increase 0 5 C per hour up to 2 C starting from the set temperature when ECONO has been received 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation 3 The compressor speed is controlled as shown in the left figure Heating operation 1 Setting the
116. on valve coil Procedure 1 Detachment 1 Perform step 1 in all the steps and 1 in 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 FILE NO SVM 15006 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 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 113 a Minus screwdriver Hooking claw t FILE NO SVM 15006 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 M Arrow D Sensor lead Straight Part 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
117. on work Failure to do so may cause personal injury when handling parts with sharp edges Do not touch the air intake section or the aluminum fins of the outdoor unit It may cause injury Do not install the outdoor unit in a place which can be a nest for small animals Small animals could enter and contact internal electrical parts causing a failure or fire Request the user to keep the place around the unit tidy and clean Make sure to conduct a trial operation after the installation work and explain how to use and maintain the unit to the customer in accordance with the manual Ask the customer to keep the operation manual along with the installation manual FILE NO SVM 15006 2 SPECIFICATIONS 2 1 Specification RAS B10N3KV2 E1 RAS B13N3KV2 E1 RAS 10N3AV2 E1 RAS 13N3AV2 E1 Cooling capacity Cooling capacity range 1 1 3 1 Heating capacity Heating capacity range 0 9 4 8 Power supply 1Ph 50Hz 220 240V 1Ph 60Hz 220 230V Electric Operation mode Cooling Cooling characteristic Running current 0 21 0 19 0 24 0 22 0 21 0 19 Power consumption 35 35 76 76 Power factor Operation mode Cooling Cooling Running current 2 94 2 71 5 03 4 61 Power consumption 563 1015 87 92 Power factor Starting current 3 76 COP Cooling Heating 4 18 4 27 High 38 39 i 33 34 Low 26 28 46 47 Indoor unit Unit model RAS B10N3KV2 E1 Dimension Height mm Width mm I9 N a 0 24 0 22 PES S SE SIS
118. ontrol is defective Is there any thyristor fluorescent light nearby Does indoor unit start to operate by automatic restart function Does radio sound is affected by remote control when a signal is transmitted at distance of 5 cm from radio P C board is defective Avoid direct Keep indoor unit Replace Replace Normal sunlight away from P C board batteries operation thyristor fluorescent light 84 FILE NO SVM 15006 11 5 2 Wiring Failure Interconnecting and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between and of the indoor terminal block varied Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Terminal block at indoor side Red 39 O O J 5527709 or equivalent G or J type S5277G Diode with rated voltage of 400V White or more is acceptable D Terminal block Tester Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 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 1
119. oopinO LINN YOOGLNO HUN ONIN Y O IN OA EA IQON SSINd ov lt r 1 1 ov lt JoyeAu queuing 9D queuing 2v Josuos jueuno yndu ZHINY UORn294107 10108 JOMOd YIH Joopul eM p eBreyosig 10 A W d q Y 0 009 10108 033009 uej JOOPINO 04009 JUBUND J9AO 199 0 009 jueuno 3ndu siseuju s MIN 2 600SDDIN EEE eed INVHOVIG MIO TE YALNdNOD ONDIIN Josu s dw JeBueuoxe 1e9H Josues duiej uonong Josues JOOPINO Josues duiej oBJeuosiq K gt J00pu 2808 026 i LINN HOOONI 404 27 FILE NO SVM 15006 9 OPERATION DESCRIPTION 9 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner which uses AC or DC motor for the indoor for motor and the outdoor fan motor And t
120. or caused by over charge refrigerant P M V failure etc Compressor failure High current FILE NO SVM 15006 Action and Judgment Check installation conditions such as packed valve opening refrigerant amount and power supply rate 10 both of operation and non operation condition Check P M V by measure the resistance of the coil and confirm its operation sound of initial operation etc Observe any possibility cause which may affect operation load of compressor Operate again If compressor operation is failure when 20 seconds passed count time from operation starting of compressor replace compressor 4 or 8 times When first error is detected error is count as 1 time then once operation is stop and re started After re starting operation within 6 minutes if same error is detected error count is add count become 2 times When error count comes 4 or 8 times record error to check code But after re starting operation if no error is detected and air conditioner can operate more than 6 minutes error count is cleared The others Return signal of the outdoor Indoor unit Flashes when including unit has been sent when operates compressor operation start But after continue Flashing stop that signal is stop some time Outdoor unit fand outdoor unit Instantaneous power stop start to operate failure when the return Some protector signal from the hardware of the outdoor un
121. os 3 Mode select button MODE 2905 4 Temperature button TEMP coe 5 Fan speed button FAN D 6 Swing louver button SWING D Q 7 Set louver button FIX On timer button ON 1 en EE Cad 5 9 Off timer button OFF d ens Exe ee Setup button SET 5 Eo EE mn Clear button CLR wos HEHE 2 Memory and Preset button PRESET cal a 13 One Touch button ONE TOUCH Mo ok rien nite D High power button Hi POWER 19 CES 8 15 Economy button ECO y 6 Quiet button QUIET D The provided Remote Controller is a wireless type which also can be used as a wire Please see How to Connect The Remote Controller for Wired Operation located in installation instruction in case of wired control is required In wire operation remote controller will return to initial condition PRESET TIMER and CLOCK will return to initial condition when user shutdown power supply of Air conditioner 9 4 2 Operation of remote control 1 ONE TOUCH Press the ONE TOUCH button for fully automated operation that is customised to the typical consumer preferences in your region of the world The coutomised settings control temperature air flow strength air flow direction and other settings to provide you alternate contact with ONE TOUCH OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit Press Start the ope
122. our preferred operation 2 Press and hold 267 for seconds to memorize the setting The mark displays 3 Press r Operate the preset opera 10 AUTO RESTART OPERATION 11 12 To automatically restart the conditioner after the power failure Power of the unit must be on Setting 1 Press and hold the RESET button on the indoor unit for 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 secpmds 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 QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press We Start and stop the operation Note Under certain conditions QUIET operation may not provide adequate cooling due to low sound features COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF Press SLEEP o Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 0 5 degree hour for 4 hours maximum 2 degrees increase For heating operation the set temperature will decrease FILE NO SVM 15006 9 4 3 Display of Remote Control All indications except for the clock time indicator are displayed by pressing the Q5 button Indicate Au
123. place free of a leakage of combustible gases A place which does not block a passage When the outdoor unit is to be installed in an elevated position be sure to secure its feet e An allowable length and height please refer form 1 SPECIFICATIONS A place where the drain water does not raise any problem 10 4 2 Precautions about installation in regions with snowfall and cold temperatures e 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 e Do not use a double stacked desing Snow protection plate Install at least 50 cm above the snow Snow protection hood RM accumulation line Front 41 At least 50 cm Snow accumulation line Holding frame Fig 10 4 1 CAUTION N 1 Install the outdoor unit without anything blocking the air discharging 2 When the outdoor unit is installed in a place exposed always to a strong wind like a coast or on a high story of a building secure the normal fan operation using a duct or a wind shield 3 Specially in windy area install the unit to prevent the admission of wind 4 Installation in the following places may result in trouble Do not install the unit in such places e A place full of machine oil A saline place such as the coast A place full of sul
124. r it is assumed as a trouble Operation control of outdoor fan motor Operations followed to judgment P M V control 4 way valve control 28 of serial signal from indoor side FILE NO SVM 15006 9 2 Operation Description 9 3 T BasiC ODeraliOn cote cs mE tede tto ttt fenes 30 1 Operation control cx reet e teeth 30 2 Cooling Heating operation mss geeist treinen meekan A nes 31 SATO OM AON eneen ta 31 Reenen ER MED 31 2 Indoor fan TNO cedes acte tete Goa eea nde 32 Outdoor fan Motor Controleren dert ee eene 34 ds o0 APACHE sf 35 5 Current release control nonnen enneneneenserserreneeeereeereeervenreeereenvenen enne eeneenneeen 35 6 Release protective control by temperature of indoor heat exchanger 36 T Defrost control Only in heating operation nensensennen 37 9 T 39 1 Eo ver POSITION tete var EE otra et E Ro Ne ete dide MR RR edet uisa e 39 2 Air direction adjustment co aso v LO BN dete m tU OR RI E 39 dor T LR ERE 39 D EGOODSIOD eres eerta c ELA doi tel 40 10 Temporary tefte etate te ens tet eds 41 11 Discharge temperature control aos ossa ea een bp a e Rp Ud 41 12 Pulse Modulating valve P M V control ssssssssseeeeeeneennennee een
125. r heat exchanger temperature Operation flow and applicable data etc In cooling dry operation gt Prevent freezing control for indoor heat exchanger In cooling dry operation the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Usual cooling capacity control When the value is in Q zone the compressor speed is kept Reduction of compressor speed FILE NO SVM 15006 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 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 1 When temperature of the indoor heat exchanger rises in the range from 50 to
126. raton 2 AUTOMATIC OPERATION To automatically select cooling or fan only operation 1 Presse Select A 2 Press Set the desired temperature 3 COOLING HEATING FAN ONLY OPERATION To automatically select cooling or fan only operation 1 Press 02 Select Cool zx Heat xz or Fan only 2 Press Set the desired temperature Cooling Min 17 Heating Max 30 Fan Only No temperature indication 3 Press Select AUTO LOW LOW 4 MED sas MED aan or HIGH 49 gt DRY OPERATION COOLING ONLY FILE NO SVM 15006 For dehumidification a moderate cooling performance is controlled automatically 1 Press 9 Select 2 Press 5 Hi POWER OPERATION Set the desired temperature To automatically control room temperature and airflow for faster cooling or heating operation except in DRY and FAN ONLY mode Press Start and stop the operation 6 ECO OPERATION To automatically control room to save energy except in DRY and FAN ONLY mode Press sco Start and stop the operation Note Cooling operation the set temperature will increase automatically 0 5 degree hour for 4 hours maximum 2 degrees increase For heating operation the set temperature will decrease 7 TEMPORARY OPERATION In case of the misplaced or discharged remote control Pressing the RESET button the unit can start or stop without using the r
127. refully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use Auxiliary pipes Installation plate S When bending a pipe carefully do it not to crush it polyethylene foam as insulating material 10 3 5 Indoor unit fixing 1 Pass the pipe through the hole in the wall and hook 1 10 3 6 Drainage the indoor unit on the installation plate at the upper hooks Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate While pressing the indoor unit onto the wall hook it at the lower part on the installation plate Pull the indoor unit toward you to confirm that it is firmly hooked up on the installation plate For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing D Installation plate Fig 10 3 18 lt unhook its bottom up at the specified parts D O Push Push Fig 10 3 19 NOTE Do not rise the FILE NO SVM 15006 Run the drain hose sloped downwards Do not form the drain hose into Hole should be made at a slight downward slant on t
128. ress RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds LEER The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times The green indicator flashes for 5 seconds If the unit is required to operate at this time press RESET button once more or use the remote controller to turn it on RESET button While the filter check indicator is on the RESET button has the function of filter reset betton FILE NO SVM 15006 9 3 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Repeat the setting procedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the system is on stand by not operating Operation Press RESET button for more than three seconds Less than 10 seconds RESET button When the system is operating Operation Press RESET button for more than three seconds Less than 10 seconds Pe RESET button Motions The unit is on standby The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times and continues to operate
129. rious 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 108 FILE NO SVM 15006 Remarks Inverter cover P C board Soldered surface FS ANM gt 7 LOS tr SEA Al ss gt 4 Discharging position Discharging period 10 seconds or more Plug of soldering iron A screw ST1T 4x8MSZN PC board Soldered surface 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 Inverter assembly Procedure 1 Perform work of item 1 in D 2 Remove screw 6 1 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 Q Be careful to check the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting 9 polarity by discharging resistance approx 100Q40W or plug of soldering iron to terminals a of the C14 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 760uF or 500uF on P C board Be careful to discharge the capacitor because the electrolytic capacitor cannot naturall
130. rminal 115 FILE NO SVM 15006 13 EXPLODED VIEWS AND PARTS LIST 13 1 Indoor Unit Part E 190 nt LY SUA e g RS E NS 402 401 403 G 7 Location 2d Location ET Description Description m Demon EBENEN 406 43769319 TEMPERATURE SENSOR 43T6V536 PC BOARD RAS B10N3KV2 E1 43750306 TEMPERATURE SENSOR 43T6V538 PC BOARD RAS B13N3KV2 E1 43169320 TEMPERATURE SENSOR 43T6V549 PC BOARD RAS B16N3KV2 E1 43762340 CORD CLAMP 43T60378 TERMINAL 43T6V316 PC BOARD ASSY WRS LED 43760417 TERMINAL 116 FILE NO SVM 15006 13 2 Indoor Unit 224 Electric Parts Assembly 207 Location X Location ue Description Description No memi o EE Desenpton 43121442 STEPPING MOTOR 43739343 MOTOR BAND LEFT 43721433 FAN MOTOR RAS B10 13N3KV2 E1 43T39329 MOTOR BAND RIGHT 43121428 FAN MOTOR RAS B16N3KV2 E1 43T09409 HORIZONTAL LOUVER 43722312 BEARING ASSY MOLD 43179313 CAP DRAIN 43170316 HOSE DRAIN 43144409 REFRIGERANT CYCLE ASSEMBLY 43120325 CROSS FLOW FAN ASSEMBLY RAS B10 13N3KV2 E1 43T11301 PIPE SHIELD RAS B10 13N3KV2 E1 43144483 REFRIGERANT CYCLE ASSEMBLY 43T49010 PIPE SHIELD RAS B16N3KV2 E1 RAS B16N3KV2 E1 43783305 HOLDER REMOTE CONTROL 43T00598 PANEL SERVICE ASSEMBLY 43T60382 MOTOR CORD 43T80327 FILTER AIR R 43782310 INSTA
131. rom the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference IThe location of the remote control should be determined as shown below Side view Topview J 7 Indoor unit ae Remote control Indoor unit 5 Reception Reception range range Remote control Fig 10 3 1 FILE NO SVM 15006 10 3 2 Cutting a hole and mounting installation plate Cutting a hole When installing the refrigerant pipes from the rear The center of the pipe hole is above he arow 100 mm Fig 10 3 2 1 After determining the pipe hole position on the mounting plate gt drill the pipe hole 65 mm at a slight downward slant to the outdoor side NOTE e When drilling a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate Anchor bolt holes LZ 5 Hook PH Pipe hole Thread Pipe hole i Mounting screw Indoor unit Weight D g Fig 10 3 3 57 When the installation plate is directly mounted the wall 1 Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit To mount the installation plate on a
132. s The Self Cleaning operation is not performed after a heating operation Operation Time set now elapses 1 When the stop signal from the remote controller or timer off function is received only the timer indicator light 2 The period of the Self Cleaning operation operation performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified period the unit stops operating During Self Cleaning operations The louver opens slightly The indoor fan operates continuously at a speed of 500 rpm Self Cleaning operation times Operation time Self Cleaning operation time No Self Cleaning operation performed 0 minutes Up to 10 minutes Cooling Auto cooling Dry 10 minutes or longer 30 mins Heating Auto heating Auto fan only No Self Cleaning operation performed Shutdown To stop an ongoing Self Cleaning operation at any time Press the start stop button on the remote controller twice during the Self Cleaning operation After pressing the button for the first time press it for the second time without delay within 10 minutes 43 FILE NO SVM 15006 13 Self Cleaning e Self Cleaning diagram function Operation display ON OFF OFF ON ON FCU fan rpm is depend on presetting 500RPM OFF FCU louver OPEN OPEN 12 7 CLOSE ON or OFF ON ON or OFF Timer display depend on presetting of t
133. s black white orange connected to terminal block Lead connected to compressor Disconnect the connector 3P Lead connected to reactor Disconnect the two connectors 2P 2 Connectors RAS 10 13N3AV2 E1 CN31 Outdoor fan motor 3P white See Note CN72 4 way valve 2P yellow CN61 TE sensor 2P white CN73 PMV 6P white CN64 TS sensor white CN62 TD sensor white CN63 TO sensor 2P white RAS 16N3AV2 E CN300 Outdoor fan motor 3P white See Note 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 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 110 FILE NO SVM 15006 Remarks LJ CN63 61 CN64
134. s position Comfort sleep Indicates when comfort sleep is activaled Press comfort sleep button to selectter Quiet Indicates when quiet is activated Press quiet button to start and press it again to stop operation One Touch Indicates when one touch comfort is activated Press one touch button to start the operation Swing Indicates when louver is swing Press swing button to start the swing operation and press it again to stop the swing operation FILE NO SVM 15006 10 INSTALLATION PROCEDURE 10 1 Installation Diagram of Indoor and Outdoor Units 65 mm or more Installation ja m plate For the rear left and left piping Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation G P Do not allow the drain hose to get slack Cut the piping hole sloped slightly Shield pipe Make sure to run the drain hose sloped downward V E Flat head 4 Remote control holder The auxiliary piping can be connected m wood screw 1 8 the left rear left rear right right bottom Battery cover Flat head Vinyl tape right or bottom left wood screw Apply after carrying out a drainage test ed Flat head Right wood screw Wireless remote control Rear right Bottom Rear right left 600 mm or more Batteries 4 Bottom left P V Insulate the refrigeran
135. s 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 Mominardismeter copper pipe jointed mm mm 3 2 2 Processing of Piping Materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the installed air water heat pump is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been removed When stored be sure to seal the container with an airtight cap or any other cover 1 Flare processing procedures and precautions Cutting the Pipe By means of a pipe cutter slowly cut the pipe so that it is not deformed b Removing Burrs and Chips If the flared section has chips or burrs refrigerant leakage may occur Carefully remove all burrs and clean the cut surface before installation Insertion of Flare Nut 10 FILE NO SVM 15006 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
136. se 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 RAS B10N3KV2 E1 RAS 10N3AV2 E1 RAS B13N3KV2 E1 RAS 13N3AV2 E1 Fig 11 3 Do NOT lay the circuit board assembly flat Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280 to 380V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc Discharging method gt 1 Remove the inverter cover plating by opening four mounting claws 2 As shown below connect the discharge resistance approx 100040W or plug of the soldering iron to voltage between t
137. se output of inverter P C board 150 270VAC at the connecting lead wire of compressor If 3 Phase output is abnormal replace inverter P C Board If 3 Phase output is normal replace compressor lock rotor etc Remove connecting lead wire of the compressor and operate again If outdoor fan does not operate or operation but stop after some period replace the inverter P C board If outdoor fan operates normally measure resistance of compressor winding If circuit is shortage replace the compressor Even if trying to operate again all operations stop replace inverter P C board Check sensors TE TS and connection In case of the sensors and its connection is normal check the inverter P C board Check sensors TD and connection In case of the sensor and its connection is normal check the inverter P C board Check the motor measure winding resistance shortage or lock rotor Check the inverter P C board Check sensors TO and connection In case of the sensor and its connection is normal check the inverter P C board Block distinction Check code Operation of diagnosis function Air conditioner status All OFF Check code Display flashing Cause of operation error V Compressor drive output error Flashes after error is detected _ Relation of voltage current and frequency is abnormal 8 times Overloading operation of compress
138. t pipes separately with insulation not together Extension drain hose Not available provided by installer The provided Remote Controller is a wireless type which also can be used as a wire Please see How to Connect The Remote Controller for Wired Operation in case of wired control is required x 6 mm thick heat resisting Remark polyethylene foam Detail of accessory and installation parts can see in the accessory sheet Some pictures might be different from the actual parts Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type following the and positions amp Pe Batteries 2 Wireless remote controller FILE NO SVM 15006 10 2 Installation 10 2 1 Optional installation parts pia Parts name Q ty Refrigerant piping Liquid side 26 35 mm One Gas side 29 52 mm 10 13k each 912 7 mm 16k Pipe insulating material polyethylene foam 6 mm thick One Putty PVC tapes each lt Fixing bolt arrangement of outdoor unit gt 108 mm 125 mm at 28 S Air inlet a wy fa EE d T1 d e is U Air outlet 90 mm 600 Drain outlet Fig 10 2 1 Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind e Use 28 mm or 10 mm anchor
139. thermore it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants 1 Copper Pipes It is necessary to use seamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg 10 m Do not use copper pipes having a collapsed deformed or discolored portion especially on the interior surface Otherwise the expansion valve or capillary tube may become blocked with contaminants As an air conditioner using R410A incurs pres sure higher than when using R22 it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in Table 3 2 1 Never use copper pipes thinner than 0 8 mm even when it is available on the market FILE NO SVM 15006 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 piping
140. ting 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 Whether conven tional equipment can be used Existence of new equipment for RA10A Whether new equipment can be used with conventional refrigerant Flare tool Pipe flaring Yes Note 1 Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Yes Note 1 Note 1 Torque wrench For 12 7 Connection of flare nut Yes Gauge manifold Charge hose Evacuating refrigerant charge run check etc Yes Vacuum pump adapter Vacuum evacuating Yes Electronic balance for refrigerant charging Refrigerant charge Yes Refrigerant cylinder Refrigerant charge Y
141. tion Does AC 120 V or higher voltage apply to between red and black lead of fan motor NO Does the fan rotate Shut off the power supply Does the cross flow NO Change the setting of cooling to high fan fan rotate normally YES Turn on the power supply Operation stops Does the fan speed become higher YES Is the rotation signal DC 5 0 V output between 2 gray lead wire and 3 brown lead wire of the motor connector CN11 when rotating the cross flow fan by hand in no operating status 1 pulse one turn YES Replace the control P C board Normal 80 Control P C board is defective Replace the P C board Does connecting terminal connecting cable or power supply cord completely Does not found the short wire about connecting cable and power cord YES Repair the bearing of the fan Motor control circuit failure IC03 Q39 and D01 or 12 V Switching power supply failure Replace the P C board NO Replace the fan motor Replace connecting the cable or power thermal fuse and terminal block FILE NO SVM 15006 For AC fan motor Inspection procedure 1 Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 Check AC voltage with CN10 connector while the fan motor is rotat
142. tion conditioner status Current on inverter circuit OFF Flashes after is over limit in short time error is detected Inverter P C board is 8 times failure IGBT shortage etc Compressor current is higher than limitation lock rotor etc Compressor position detect All OFF Flashes after circuit error or short circuit error is detected between winding of 8 times compressor Display flashing error Current detect circuit of inverter P C board error All OFF Flashes after error is detected 4 times All OFF Flashes after error is detected 4 times All OFF Flashes after error is detected 4 times All OFF Flashes after error is detected 8 times TO sensor The outdoor Operation Record error TE sensor The heat exchanger temperature sensor of the outdoor unit either TS sensor Suction pipe temperature sensor out of place disconnection or shortage TD sensor Discharge pipe temperature sensor is disconnection or shortage Outdoor fan failure or its drive circuit on the inverter P C board failure temperature sensor is continues after detected disconnection or shortage 4 times But does not flash display FILE NO SVM 15006 Action and Judgment Remove connecting lead wire of the compressor and operate again If outdoor fan does not operate or operate but stop after some period replace the inverter P C board If outdoor fan operates normally measure 3 Pha
143. to the holder NOTE The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE outdoor suction temp sensor TS and outdoor sensor TO YES Set it correctly et Gas amount check and valve clogging check Remove TC sensor connector from the P C board in indoor unit Remove connector from the 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 86 Add gas 11 7 How to Diagnose Trouble in Outdoor Unit Check Power Supply Voltage Rate 10 Turn OFF power supply Remove connector of compressor NG Check 25A fuse F01 Check component parts of control board assembly by visual damage burn Etc Replace control board Replace fuse Turn ON power Supply Check terminal Voltage of electrolyt
144. to will be appear with Dry operation 49 Dry only HiPOWER 10 11 12 13 52 1 Transmission mark 5 TIMER and clock time indicator This transmission mark A indicates when the The time setting for timer operation or the clock remote controller transmits signals to the indoor time is indicated unit The current time is always indicated except 2 Mode indicator during TIMER operation Indicates the current operation mode 6 Hi POWER indicator A Auto Cool S Dry X Heat Fan only Indicates when the Hi POWER operation starts Press the Hi POWER button to start and press it 3 Temperature indicator again to stop the operation ao setting 7 PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation 4 FAN speed indicator The mark is shown when holding down the Indicates the selected fan speed button for more than 3 seconds while the mark is blinks AUTO or five fan speed levels Press another button to turn off the mark LOW 5 LOW MED B MED mum HIGH be shown 8 ECO indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation 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 thi
145. tor Reference condition of Fan Motor s assembly 103 FILE NO SVM 15006 Remarks Set screw Two screws Two screws on motor band Motor cover FILE NO SVM 15006 Part name Procedures Remarks Cross flow fan Caution at reassembling Fan motor D shaft Double point set screw 1 To incorporate the fan motor incorporate the motor into the position in the following figure and then install the fan motor Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 5 0 mm from closed wall of the main unit Holding the set screw install the cross flow fan so that flat area on shaft of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooking claws of the motor band right into the main body position the fan motor insert it and then secure the motor band right using the two fixing screws 104 12 2 Microcomputer Part name Common procedure Procedure 1 Turn the power supply off to stop the operation of air conditioner 2 Remove the front panel Remov
146. ur and damage the equipment Gas leakage detector Exclusive for HFC refrigerant Incidentally the refrigerant cylinder comes with the refrigerant designation R410A and protector coating in the U S s ARI specified rose color ARI color code PMS 507 Also the charge port and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hose s port size 10 3 Indoor Unit 10 3 1 Installation place place which provides the spaces around the indoor unit as shown in the diagram in part 8 2 A place where there is no obstacle near the air inlet and outlet A place that allows easy installation of the piping to the outdoor unit A place which allows the front panel to be opened The indoor unit shall be installed as top of the indoor unit comes to at least 2 m height Also it must be avoided to put anything on the top of the indoor unit irect sunlight to the indoor unit s wireless receiver should be avoided The microprocessor in the indoor unit should not be too close to RF noise sources For details see the owner s manual Remote control A place where there are no obstacles such as a curtain that may block the signal from the indoor unit not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove eep the remote control at least 1 m apart f
147. w tools for 410 Applicable to R22 model FILE NO SVM 15006 Changes Gauge manifold As pressure is high it is impossible to measure by means of conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed Charge hose In order to increase pressure resisting strength hose materials and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size Electronic balance for refrigerant charging As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur Torque wrench nominal diam 1 2 5 8 The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 Flare tool clutch type By increasing the clamp bar s receiving hole strength of spring in the tool has been improved Gauge for projection adjustment Used when flare is made by using conventional flare tool Vacuum pump adapter Connected to conventional vacuum pump It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose The charge hose connecting part has two ports one for conventional refrigerant 7 16 UNF 20 threads per inch and one for R410A If the vacuum pump oil mineral mixes with R410A a sludge may occ
148. whether or not the fuse FO1 is blown FILE NO SVM 15006 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 No 1 and No 3 of CNO1 AC 220 240V 2 Between 3 and of DC 310 340V Between 12V and GND Between 5V and GND 1 The terminal block or the crossover cable is connected wrongly 2 The capacitor C01 line filter 601 resistor R02 is defective 3 T101 is defective 4 IC11 and T101 are defective Push 5 button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN27 and No 1 of CNO1 DC 15 60V IC51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FAN ONLY FILTER HI POWER are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN10 is defective Push 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
149. y automatically rotate by turning on power supply Inspection procedure 1 Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 Check DC voltage with CN31 connector while the fan motor is rotating NOTE Do not disconnect the connector while the fan motor is rotating thin test rod Indoor fan starts rotating when power supply is turned on Check output DC voltage of fan motor on P C board P C board Measure voltage between 3 GND BLACK and 5 V line YELLOW of motor connector CN31 while indoor fan motor is rotating DC 1 0V or more Under DC 1 0V P C board is defective Motor is defective Replace P C board Replace motor 83 FILE NO SVM 15006 4 Troubleshooting for remote controller Primary check Check that A or B selected on the main unit is matched with A or B selected on the remote controller The unit does not beep at all OPERATION lamp on indoor unit is not indicated Press 5 button Is transmission mark indicated Press RESET button on remote control 15 receiver on with tip of pencil indoor unit exposed to direct sunlight Does indoor unit operate when moving remote control near receiver or indoor unit Press 5 button YES Batteries are exhausted Is transmission mark indicated YES NO Does indoor unit beep and operate YES Remote c
150. y discharge and voltage remains according to trouble type in some cases This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between 4 Remove screw ST1T 4 x 10L 4pcs fixing the terminal part of inverter box to the main 5 Remove the front cabinet by performing step 1in Q and remove the fixing screws ST1T 4 x 10L for securing the main body and inverter box 6 Remove various lead wires from the holder at upper part of the inverter box 7 Pull the inverter box upward 8 Disconnect connectors of various lead wires As each connector has a lock mecha nism avoid to remove the connector by holding the lead wire but by holding the connector 109 FILE NO SVM 15006 Remarks Inverter cover P C board Soldered surface 2 E Lll r I Plug of soldering Discharging position Discharging period 10 seconds or more Put each leads Put the compressor through the hole u leads through the hole The connector is one with lock so remove it while pushing the part indicated by an arrow Be sure to remove the connector by holding the connector not by pulling the lead wire 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 lead

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