Home

SERVICE MANUAL

Contents

1. jeus eM p A W d q Y Ionuoo jndjno 0 009 yH uej JOOPINO JO9 OP JUBUND J9AO 1891 0 009 u uino ndul siseuju s Now 24 6006021 E EI MC eS 320718 YALNdNOD ONDIIN SION Josu s dw JeBueuoxe 1e9H Josues duiej uonons Josues duiej JOOPINO Josues oBJeuosiq ynoulo K gt J00pu 09 062 800 1 LINN HOOQNI 404 25 FILE SVM 13071 9 OPERATION DESCRIPTION 9 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner Its system can control the speed of compressor motor according to load The drive circuit for the indoor motor is mounted in the indoor unit The drive circuits for outdoor motor and compressor are mounted in 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 Moreover it also determines required speed of compressor motor and then transfers the operation command to the outdoor u
2. E NER REX RR as 32 6 Release protective control by temperature of indoor heat exchanger 33 7e Louver control CT 34 10 POSION an L S ps mau 34 2 Air direction adjustment teet tte M eder tees 34 Rr E 34 B ECO ODBIATIOD yu 35 9 tented M tree 35 10 Discharge temperature control etae t ales enacts asides 36 11 Pulse Modulating valve P M V control 36 12 Self Cleaning function o ue ti B pa deca gu epe S da 37 13 Selt Cleaning function release 38 14 Remote A or B selection eerte rr tate 39 15 QUIET dEIOGB sasa l Mentes spe pai br b Med ef t r s Eee aded 40 16 COMFORT SLEEP MOUS 40 1 Filter Indicator mer 40 18 One Touch Comfort 26 dance 41 19 gt tere ER ap a uu Pre cuu ER 41 Auto Restart Function 9 3 1 How to Set the Auto Restart Function 42 9 3 2 How to Cancel the Auto Restart Function
3. Indoor fan motor 11 8 4 Outdoor Unit Part name Compressor Model DA111A1F 20F 2 RAS 12EACV UL Model DA89X1C 23FZ2 RAS 09EACV UL Refer to 11 5 1 3 and 4 Checking procedure Measure the resistance value of each winding by using the tester Positi Resistance value OSINON DA111A1F 20F1 DA89X1C 1F 23FZ Red White White Black Black Red 0 88 to 0 980 1 04 to 1 160 White Black at 20 C Outdoor fan motor Model ICF 340UA40 2 Measure the resistance value of winding by using the tester Red Position Resistance value Red White 20 to 22 White Black 20 to 22 Black Red 20 to 22 at 20 C 4 way valve coil Model STF 01AQ503UC1 Measure the resistance value of winding by using the tester TE Resistance value Pulse motor valve coil Model CAM MD12TCTH 4 1435 144 Measure the resistance value of winding by using the tester at 20 C Gray White 42 to 50 Gray Orange 42 to 50 Red Yellow 42 to 50 Red Blue 42 to 50 at 20 C 1 W COM 6 GR 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 TD kQ 100 TO TS TE 20 7 12 6 10 0 7 9 4 5 89 FILE NO SV
4. 5 TIMER and clock time indicator The time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation 6 Hi POWER indicator Indicates when the Hi POWER operation starts Press the Hi POWER button to start and press it again to stop the operation 7 PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is flashing Press another button to turn off the mark 8 ECO indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation 9 A B change indicator remote controller When the remote controller switching function is set B appears in the remote controller display When the remote controller setting is A there is no indication at this position 10 Comfort sleep Indicates when comfort sleep is activaled Press comfort sleep button to selectter 1 1 Quiet Indicates when quiet is activated Press quiet button to start and press it again to stop operation 12 One Touch Indicates when one touch comfort is activated Press one touch button to start the operation 13 Swing Indicates when louver is swing Press swing button to start the swing operation and press it again to stop the swing operation 47 10 INSTALLATION PROCED
5. mm Outer Nominal Thickness P diameter mm in mm Flare tool for R22 Conventional flare tool in clutch type Clutch type Wing nut type 0 0315 0 8 0100 0197 0 to 0 5 SERO 0 0315 0 8 0 to 0 0197 0 to 0 5 re S OBIE 0 0315 0 8 0 to 0 0197 0 to 0 5 a k Table 3 2 5 Flare and flare nut dimensions for R410A Nominal outer diameter Thickness Dimension in Amm Flare nut width diameter in mm in mm B mm 0 0315 0 8 0 358 9 1 0 362 9 2 0 256 6 5 0 512 13 0 669 17 0 0315 0 8 0 520 13 2 0 531 13 5 0 382 9 7 0 787 20 0 866 22 0 0315 0 8 0 630 16 0 0 653 16 6 0 508 12 9 0 906 23 1 024 26 10 Nominal diameter in Table 3 2 6 Flare and flare nut dimensions for R22 Outer diameter mm Thic kness in mm 0 0315 0 8 Dimension in mm FILE NO SVM 13071 0 354 9 0 B 0 362 9 2 C 0 256 6 5 0 512 13 Flare nut width in mm 0 669 17 0 0315 0 8 0 512 13 0 0 531 13 5 0 382 9 7 0 787 20 0 866 22 0 0315 0 8 0 630 16 0 0 638 16 2 10 508 12 9 0 787 20 0 945 24 a ei 04 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
6. Inverter cover P C board Soldered surface lt Fig 11 3 FILE NO SVM 13071 1 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 208 230 10 If power voltage is not in this range the unit may not operate normally 11 1 3 Operation Which is not a Trouble Program Operation For controlling the air conditioner the program operations are built in the microcomputer as described in the following table If a claim is made for running operation check whether or not it meets to the contents in the following table When it does we inform you that it is not trouble of equipment but it is indispensable for controlling and main taining of air conditioner Table 11 1 1 Operation of air conditioner When power breaker is turned the operation indicator Green of the indoor unit flashes Description The OPERATION lamp of the indoor unit flashes when power source is turned on If 5 button is operated once flashing stops Flashes also in power failure Compressor may not operate even if the room temperature is within range of compressor ON The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found after power source has been turned on becaus
7. i pes Id 5 s 6 11 16 170 more A tt16 70 or mare CS X E WD 7 Hanger Hanger Sg 3 5 16 84 5 5 1 2 150 6 5 16 161 6 5 16 161 5 1 2 150 3 5 16 84 5 5 Center line Installation plate outline 16 4 2 Outdoor Unit 1 25 Water Drain Outlet 23 5 8 600 1 31 32 50 _ R19 32 1 27 64 36 R15 S R7 32 R5 5 o 01 4 Hole amp 26 Hole Detail A Rear Leg 17 5 32 0436 21 11 16 550 4 1 4 108 _ _14 15 16 125 FILE NO SVM 13071 Unit Inch mm 12 19 32 320 01 4 Hole 26 Hole 12 19 32 320 10 7 8 275 3 17 32 90 23 5 8 600 3 17 32 90 2 23 32 69 2 3 32 53 R19 32 R15 7 16x9 16 Oval Hole 11x14 Oval Hole 1 27 64 36 1 31 32 50 23 5 8 600 s COVER PACKED VALVE View Z 13 1 2 342 Ed Liquid side Flare Nut 01 4 6 35 Gas side Flare Nut 23 8 9 52 Z S S e e 2 Z 3 15 16 or more 100 mm or more 3 15 32 88 Service Port 2
8. When To is abnormal Outdoor fan speed rpm RAS 09EACV UL RAS 12EACV UL FILE NO SVM 13071 Description 1 The operation command sent from the remote controller is processed by the indoor unit controller and transferred to the controller of the outdoor unit 2 When strong wind blows at outdoor side the operation of air conditioner continues with the fan motor stopped 3 Whether the fan is locked or not is detected and the operation of air conditioner stops and an alarm is displayed if the fan is locked 4 According to each operation mode by the conditions of outdoor temperature To and compressor revolution the speed of the outdoor fan shown in the table is selected RAS 09EACV UL RAS 12EACV UL 31 Operation flow and applicable data etc 4 Capacity The cooling capacity depending on the load is adjusted control According to difference between the setup value of temperature and the room temperature the capacity is adjusted by the compressor revolution Remote controller Indoor unit Set temp Ts Room temp Ta Ts Ta Correction of Hz signal Detection of electromotive force of compressor motor winding Detection of motor speed and rotor position Correction value of Hz signal lt Operating Hz Inverter output change Commutation timing change Change of compressor speed FILE
9. 43 9 3 3 Power Failure During Timer Operation 43 Remote Control 9 4 1 Remote Controller and its function 2 mmm 44 9 4 2 Operation of remote control a 44 9 4 3 Name and Functions of Indications on Remote Controller 47 SOF FILE NO SVM 13071 Item Operation flow and applicable data etc 1 Basic 1 Operation control operation Receiving the user s operation condition setup the operation statuses of indoor outdoor units are controlled 1 The operation conditions are selected by the remote controller as shown in the below 2 A signal is sent by ON button of the remote controller 3 The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below 4 The indoor controller controls the indoor fan motor and louver motor 5 The indoor controller sends the operation command to the outdoor controller and sends receives the control status with a serial signal 6 The outdoor controller controls the operation as shown in the left and also controls the compres sor outdoor fan motor and pulse Modulating valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Air conditioner Air purifier Operation select COOL AUTO DRY Temperature setup Air direction Swing Air volume select AUTO LOW LOW MED MED
10. FILE SVM 13071 10 2 Installation 10 2 1 Field supplied installation part P 2 Parts name Q ty Refrigerant piping Liquid side 21 4 2 6 35 mm p Gas side 3 8 in 29 52 mm Pipe insulating material 1 polyethylene foam 5 16 in 8 mm thick Putty PVC tapes One each lt Fixing bolt arrangement of outdoor unit gt 4 1 4 in 4 15 16 in 1 1 8 108 mm 125 mm 28 mm Air inlet QUA 1 74 cr E q L BETY ot n 281 11 Bo v L t py Air outlet 23 5 8 in 3 17 32 in 600 mm 90 mm Fig 10 2 1 e Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong winds e Use 25 16 in 28 mm or 3 8 in 2 10 mm anchor bolts and nuts 49 10 2 2 Accessory and installation parts FILE NO SVM 13071 Part Part Part name Q ty No Part name Q ty No Part name Q ty 4 d Lf t Installation plate x 1 Remote control holder x 1 Mounting screw 24 x 25 2 x 6 Flat head wood screw Wireless remote control x 1 Toshiba New IAQ filter L x 1 23 1 x 16 t x 2 6 2 Toshiba New IAQ filter L x 1 Others Name Owner s manual Installatio
11. Replace fan motor 2 Operation is not turned on though Indoor P C board is replaced lt Confirmation procedure gt Turn on power supply Does OPERATION indicator flash Is wired correctly to white and black lead wires of terminal block YES Correct wiring To item of Indoor unit is not operated STD FILE NO SVM 13071 1 3 Only the indoor motor fan does not operate lt Primary check gt 1 Is it possible to detect the power supply voltage 208 230 between and on the terminal block 2 Does the indoor fan motor operate in cooling operation RAS 09EKCV UL Check procedure gt Shut off the power supply once Turn the power supply Does the fan stop in no operating status YES NO Control P C board is defective Replace the P C board Reconecting the Check connecting interconnetion cable cable or power and terminal supply cord complely block Does an operation LED 1 Hz blink ias YES Check 5V at Check 5V at NO Start the operation display unit Main P C Board with low fan setting YES YES in cool operation Change Display unit Does AC 115 V or higher voltage apply to between red and black lead of fan motor Does the fan rotate z 9 NO YES Does the fan motor NO operate smoothly YES YES Shut off the power supply
12. uu cp gt x o lt gt o 29 c 52 m E o c m 1 Sensor characteristic table Resistance value 0 10 20 30 40 50 FILE SVM 13071 GND TD Discharge temp sensor TA Room temp sensor NUM NEM TC Heat exchanger temp sensor TA TC TO TE TS s Outdoor heat exchanger temp sensor TS Suction temp sensor 287 FILE SVM 13071 RAS 12EKCV UL T3 15A 250V F01 REI dte t 1 Sensor characteristic table 100 TD Discharge temp sensor TA Room temp sensor 20 EE RDUM CER RD RN TC Heat exchanger temp sensor air TA TC TO TE TS TE FOUIGOr temp sensor Resistance value e Outdoor heat exchanger temp sensor TS Suction temp sensor 0 10 20 30 40 50 Temperature C 88 11 8 3 Indoor Unit Other Parts Part name Room temp TA sensor Heat exchanger TC sensor FILE NO SVM 13071 Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Remote controller Refer to 11 5 1 5 Louver motor 24BYJ48 HTP Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position Resistance value 250 7
13. 2 Open the air inlet grille push the arm toward the outside and remove the grille 3 Remove the left and right air filters 92 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 lt How to assemble the front panel gt FILE NO SVM 13071 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 Tighten two screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound 93 Part name Electric parts box assembly Procedures 1 Follow the procedure up to 3 in above 2 Remove screw of earth lead attached to the end plate of the evaporator 3 Remove the lead wire cover and remove connector for the fan motor and connec tor for the louver motor from the electric parts box assembly 4 Pull out TC sensor from sensor holder of the evaporator 5 Disengage the display unit by simply pushing at the top of the display unit 6 Remove the fixing screw that secures the electric parts box assembly and remove the assembly
14. Change the setting of Does the cross flow NO TN cooling to high fan fan rotate normally Pid fan YES Turn on the power supply Does the fan speed NO gt Operation become higher stops YES Is the rotation signal DC 5 V 0 V output between gray lead wire and brown lead wire of the motor connector CN33 when rotating the cross flow fan by hand in no operating status 1 pulse one turn NO Replace the fan motor YES Normal Replace the control 77 FILE NO SVM 13071 1 RAS 12EKCV UL Turn off power supply once and turn it on again Does fan motor Y continue to operate Is it possible to detect DC sO moog and 0 motor Connector CN31 NO Peplace indoor fan motor Does check connecting Reconnecting the cable or power supply in terconnection cable cord complely and terminal block YES YES Does check 5V at display unit Does check 5V NO at main P C board YES YES Start to operate indoor unit in cooling operation at airflow level LOW Replace display unit Is it possible to detect DC 294 325V between CD of motor connector CN31 NO Turn off indoor unit and remove Motor connection condition Is it possible m detect ig 15V then push OT button between and of motor conn
15. 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 Press RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times The green indicator flashes for 5 seconds If the unit is required to operate at this time 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 _ 42 FILE NO SVM 13071 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 Motions Press RESET button for more than three seconds Less than 10 seconds RESET button When the system is operating
16. When the installating plate is directly mounted to the wall 1 To hook up the indoor unit securely fit the mounting plate onto the wall by screwing it in the upper and lower parts 2 To mount the mounting plate on a concrete wall with anchor bolts drill the anchor bolt holes as illustrated in the figure shown below 3 Make sure the mounting plate is leveled CAUTION When installing the mounting plate with a mounting Screw do not use the anchor bolt holes Otherwise the unit may fall down and result in personal injury and property damage Installation plate Keep horizontal direction Anchor bolt 2 Projection gt 9 16 in 15 mm or less Fig 10 4 3 55 FILE SVM 13071 CAUTION 3 16 in 6 mm dia hole Be sure to refer to the system wiring diagram Mounting screw located inside the front panel 05 32 in x 1 in 4 mm x 25 mm Check local electrical codes and also specific wiring instructions or limitations field supplied parts Air inlet grille Fig 10 4 4 Ng CAUTION ev Failure to firmly install the unit may result in personal injury and property damage if the e unit falls Front panel case the unit is to be installed in a block brick concrete or similar type walls make 3 16 in 5 mm dia holes in the wall 4 5 16 in 110 mm Insert clip anchors for appr
17. cause Measure Item by symptoms Remote control is defective Refer to 5 Troubleshooting for Remote Control Unit operates normally Replace main board Reconnect housing 75 FILE SVM 13071 RAS 12EKCV UL Check Item Considerable principle cause Turn off power supply once and 5 second later turn it on again NO Is OPERATION indicator flashing YES Is it possible to turn on A C by pushing button on remote controller YES Measures Item by symptoms Does transmission mark on remote controller flash normally and is its signal transmitted properly NO Remote controller is defective Refer to 5 Troubleshooting for remote controller Replace remote control Unit operates normally Point remote to digital camera Can see infrared ray at sending LED on camera monitor when push 5 button YES Does fan motor PN TO D between CN10 1 YES short circuit Is fuse 01 YES of indoor control board blown Is voltage DC5V 12V and 15V indicated on rear of indoor control board nor mal Does connection between PC Board and reciver PCB are connect properly Reconnect housing Microcomputer I Replace main is defective P C board
18. ctor QS on remote controller to stop flashing lamp on indoor unit Peplace main NO P C board Is it possible to detect DC 15V between and 3 of motor connector CN31 Change airflow level to HIGH Start to operate the indoor unit Turn off indoor unit and At this time is it possible to remove connector from motor detect DC 1V or more between Then start to operate indoor 5 and of motor unit with remote controller connector CN31 Start to operate the indoor unit At this time is it possible to detect DC 1V or more between 5 3 of motor connector CN31 Check this condition within 15 seconds after starting unit NO 78 FILE NO SVM 13071 Is it possible to change airflow level to HIGH YES NO Does check display on remote show high Replace remote Change the new PC board Does fan speed change YES Replace motor Fan motor operates normally Is it possible to rotate cross flow fan by hand properly Does check cross flow Replace bearing fan bearing normal of cross flow fan condition Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby At this time is it possible to detect DC 1V or more between 5 and O of motor connector C
19. 30W Room temp sensor TA sensor 10kQ at 25 C Heat exchanger temp sensor TC sensor 10kQ at 25 C 24BYJ48 HTP Output Rated 1W 16 poles DC12V 6 2 Outdoor Unit D J Weemme Reactor Suction temp sensor TS sensor Discharge temp sensor TD sensor 62kQ 20 C Outside air temp sensor TO sensor 25 Terminal block 5P l 30A 600 RAS 09EACV UL DA89X1C 23FZ2 3 phases 4 poles 680W Compressor RAS 12EACV UL DA111A1F 20F2 3 phases 4 poles 750W E COIL FOR P M V CAM MD 12TCTH 4 DC12V Coil for 4 way valve STF 01AQ503UC1 Dx Pressure SW ACB 4UB82W 4 7 MPa _ 20 FILE NO SVM 13071 1 7 REFRIGERANT CYCLE DIAGRAM 7 1 Refrigerant Cycle Diagram RAS 09EKCV UL RAS 09EACV UL INDOOR UNIT Temp measurement Indoor heat exchanger gt a eae 25 66ft 20m sin Min 6 6ft 2m Tess Ure Tasse I Omen Deoxidized copper pipe 2 8 Chargeless 50ft 15m Gauge attaching port Outer dia 1 4 in 6 35mm 92 0 22oz ft Vacuum pump connecting port Thickness 1 32 0 8mm 55 51 66ft Deoxidized copper pipe Se onal d pog R Outer dia 3 8 in 852mm of heat insulator Thickness 1 32 in 0 8mm Strainer 4 way valve valve at liquid side DA89X1C 23FZ2 Strainer TS Fusible plug Outdoor heat exchanger Temp measuremen
20. NO SVM 13071 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 5 Current release This function prevents troubles on the electronic parts of the control compressor driving inverter This function also controls drive circuit of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value Outdoor unit inverter main Outdoor temp To circuit control current Setup of current release point Operating current High Setup value L Reduce compressor speed Current decrease Capacity control continues Cooling current release value RAS 09EACV UL RAS 12EACV UL Outdoor temp 3 97A 4 27 4 35A 4 88A 6 30A 8 47A 2499 113 F 45 C 104 F 40 C 1119F 4
21. 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 o Air Cause of operation conditioner status Current on inverter circuit All OFF Flashes after is over limit in short time error is detected Inverter board is 4 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 4 times compressor Display flashing error Current detect circuit of inverter P C board error 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 4 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
22. 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 retum signal from the outdoor unit 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 Signal send only 1 minute and stop Because of return signal from outdoor unit has not received Signal resend again after 3 minutes stop And the signal will send continuously 1 minute after resending the indoor unit display flashes error 71 FILE SVM 13071 Action and Judgment 1 to 3 The outdoor unit never operate Check connecting cable and correct if defective wiring Check 25A fuse of inverter 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
23. disturb neighbors Please read this installation manual carefully before installing the unit It contains further important instructions for proper installation 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 is water leakage causing water damage to furniture Tighten the flare nut with a torque wrench using the prescribed method Do not apply excess torque Otherwise the nut may crack after a long period of usage and it may cause the leakage of refrigerant Wear gloves heavy gloves such as cotton gloves for installation work Failure to do so may cause personal injury when handling parts with sharp edges Do not touch the air intake section or the aluminum fins of the outdoor unit It may cause injury Do not install the outdoor unit in a place which can be a nest for small animals 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 op
24. interconnections should be minimum AWG14 MOUNT THE OUTDOOR UNIT POWER DISCONNECT RUN POWER WIRING FROM MAIN BOX TO DISCONNECT PER NEC AND LOCAL CODES Remove the valve cover and the cord clamp from the outdoor unit Fix conduit connector to conduit plate by lock nut and secure it tightly Connect the power supply and connecting cables to the terminal block as shown in the figure below and secure it tightly with screws You should not have extra cables Secure the power cord and the connceting cable with the cord clamp Attach the electric parts cover and the valve cover on the outdoor unit RUN PIPING AND INTERCONNECTING CABLE TO THE INDOOR UNIT N e Oo N 53 FILE NO SVM 13071 10 3 4 Electrical Work ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death The unit cabinet must have an uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes Make sure main power switch is turned OFF before performing service or maintenance UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Unit failure as a result or of improper line voltage application or excessive phase imbalance constitutes abuse and may cause dam
25. it OFF if this function is not required 10 7 4 How to cancel the Auto Restart 1 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beeps will sound but OPERATION lamp does not blink 2 Press and hold the RESET button on the indoor unit for 3 seconds to set the operation 3 beeps will sound and OPERATION lamp blink 5 time sec for 5 seconds Do not operate ON timer and OFF timer Note Default setting of auto restart operation is OK 10 7 5 Troubleshooting Check Point The unit does not operate Cooling is abnormally low The power main switch is turned off The circuit breaker is tripped ON timer is set The filters are blocked with dust The temperature has been set improperly Windows or doors are open The air inlet or outlet of the outdoor unit is blocked The fan speed is too low The operation mode is FAN or DRY RESE RESET button Fig 10 7 2 64 FILE SVM 13071 11 HOWTO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units Therefore diagnose troubles according to the trouble diagnosis procedure as described below Refer to the check points in servicing written on the wiring diagrams attached to the indoor outdoor units Table 11 1 Troubleshooting Procedure Troubleshooting Procedure First Confirmation How to Check Simply the Main Parts Primary Judgment Trouble
26. lt How to assemble the electric parts box gt 1 Hook the top part of the electric parts box assembly onto the claws on the back body and secure it using the fixing screw Now attach the display unit Connect the connectors for the fan motor and louver motor 2 Secure the grounding wire using the fixing screw Insert the TC sensor into the sensor holder Be absolutely sure to loop the grounding wire and TC sensor leads once at the bottom 94 FILE NO SVM 13071 Remarks Electric part box cover TC sensor Fan motor Earth Screw connector Fixing screw AC fan motor connector Louver motor connector Part name Horizontal louver Procedures 1 Remove shaft of the horizontal louver from the back body First remove the left shaft and then remove other shafts while sliding the horizontal louver leftward FILE NO SVM 13071 Remarks Evaporator Heat exchanger 1 Follow to the procedure in the item 2 4 Remove one fixing screw on the heat exchage fixing holder to separate the heat exchage from the back body 5 Remove one screw at below right side of heat exchanger that used for fixing between heat exchanger and back body by Fix Evaporator DN The Fix Evaporator DN is used for transportation only and can be removed without any concern to unit operation Follow to 7 for removing 6 Remove right side of the end plate from two fixing rib while sliding sligh
27. m or less 3782103 puits 2A aed COMPONENT YT Tighten firmly but not over Terminal 0 12 N m 0 01 kgf m Control wire Fig 10 4 11 Control wire lt For remote controller gt 1 Remove cover of remote controller by sliding down and taking it out 2 If batteries are installed please take them out Do not install batteries for hard wire installation 3 With the help of a screwdriver hreak the polyester sheet as shown on figure 7 4 Insert control wire from rear side of the remote controller as shown in figure 8 5 With the provided screws tighten the control wire to the aremote control terminal as shown in figure 10 tightening btorque not to exceed 0 25 N m 0 03 kgtk m Wire specifications are shown in figure 9 6 Route the control wire through the gutter way at the rear side of remote controller as shown on figure 1 7 Fix provided screw 1 3 1 x 16L to the wall to hang remote controller as shown in figure 12 8 Mark and arrange a hole to fix the battery cover screw 3 1 x 251 as shown in figure 0 9 Fix the battery cover to the remote controller and wall with the provided screw 3 1 x 25L as shown in figure 13 tighten firmly but not over 0 15 N m 0 02 kgf m 10 Put back the remote controller cover Wire size 28 22 AWG 0 08 0 32 mm Outer diameter not over 4 7 mm control wire length 30 m or l
28. motor and the propeller Flange nut is loosened by turning clock wise To tighten the flange nut turn counterclockwise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 4 pcs holding by hands so that the fan motor does not fall Precautions when assembling the fan Flange e motor Tighten the flange nut using a tightening torque of 3 3 Ibf ft 4 5 N m 104 Part name Compressor Procedure 1 Perform work of item 1 of D and 2 Extract refrigerant gas 3 Remove the partition board screw 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 8 Remove the fixing screw of the bottom plate and valve fixing plate 9 Pull upward the refrigeration cycle 10 Remove NUT 3 pcs fixing the compres Sor to the bottom plate FILE NO SVM 13071 Remarks PARTITION BOARD PACKED VALVE FIXING PLATE COMPRESSOR Reactor 1 Perform work of item 1 of 2 Remove screws fixing the reactors screw 5 pcs 105 Part name Electronic
29. portions do not have any scar or dust etc b Correctly align the processed flare surface with the union axis c Tighten the flare with designated torque by means of a torque wrench The tightening torque for R410A is the same as that for conventional R22 Incidentally when the torque is weak the gas leakage may occur When it is strong the flare nut may crack and may be made non removable When choosing the tighten ing torque comply with values designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out Table 3 2 7 Tightening torque of flare for R410A Reference values Tightening torque of torque wrenches available on the market Ibf ft Outer diameter mm Nominal diameter in Tightening torque Ibf ft Nem 10 to 13 14 to 18 12 16 13 18 24 to 31 33 to 42 31 42 37 to 46 50 to 62 41 55 11 FILE NO SVM 13071 2 3 3 Tools 3 3 1 Required Tools The service port diameter of packed valve of the outdoor unit in the air conditioner 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 23 8 in 9 52mm copper pipe of the refrigerant pipi
30. stop the operation Note Under certain conditions QUIET operation may not provide adequate cooling due to low sound features 12 COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF Press 8 COMFORT SLEEP Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase 13 SLEEP TIMER OPERATION To start the sleep timer OFF timer operation Press SLEEP Select 1 3 5 or 9 hrs for OFF timer operation 46 FILE NO SVM 13071 9 4 3 Name and Functions of Indications on Remote Controller Display All indications except for the clock time indicator are displayed by pressing the button 1 Transmission mark This transmission mark A indicates when the remote controller transmits signals to the indoor unit 2 Mode indicator Indicates the current operation mode AUTO Automatic control A Auto changeover control x Cool Dry 3 Temperature indicator Indicates the temperature setting 62 F to 86 F 17 C to 30 C 4 FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW _ LOW L MED m HIGH _ mg be shown Indicates AUTO when the operating mode is either AUTO or Dry CHK BM EI ELI ON DONN PMILCLU POWERS
31. that it is in the range of set tempera ture Discharge temp control 4 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 13071 Operation flow and applicable data etc Description 12 Self Cleaning 1 Purpose function The Self Cleaning operation is to minimize the growth of mold bacteria etc by running the fan and drying so as to keep the Unit now performing cooling or dry operation inside of the air conditioner clean Self Cleaning operation When the cooling or dry operation shuts down the unit automatically starts the Self Press STOP button Cleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown after which the Only timer indicator lights and Self Cleaning operation starts Self Cleaning operation stops Operation 1 When the stop signal from the remote controller or timer off function is received 2 The period of the Self Cleaning operation is determined by the duration of the operation performed prior to the 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 Clea
32. 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 controller it is assumed as a trouble Operations followed to judgment of serial signal from indoor side FILE NO SVM 13071 9 2 Operation Description 9 3 9 4 Wg Basie peratlollk u m 28 1 Operation control EE 28 2 Cooling operation dra stet aft ost rates eme tb o unte 29 ma qc 29 4 DRY POD cii sasa CR RM 29 2 Indoor fan motor control s o bes tesi tton tetto t res weno edat 30 3 Outdoor fan motor control eta pesado tend 31 4 Capacity COMMON m 32 5 Current release control
33. 1 11 16 550 E 30 11 16 780 30 11 16 780 s gjeje 5 5 5 11 7 16 290 11 7 16 290 82 37 8 40 lt l 275 20 9 Oooo o 780 750 Single rotary type with DC inverter Type variable speed conrol variable speed conrol DA89X1C 23F22 Fan motor output Air flow rate cfm m3 min 1060 30 Indoor unit Outdoor unit 2318 29 92 Refrigerant Wiring connection Usable temperature range 70 F 90 F 21 C 32 C O F 115 F 18 C 46 C O F 115 F 18 C 46 C The specifications may be subject to change without notice for purpose of improvement o FILE NO SVM 13071 T CMB 23 9 Indoor Air Flow High Pip Length 5m DB 26 7 C WB 19 4 C DB 35 Outdoor DB 98 F WB 75 F RAS 12EKCV UL 9EKCV UL Indoor DB 80 F WB 67 F Voltage 230V RAS 0 DB26 7 C WB19 4 C Indoor Air Flow Volume High Pipe Length 16 ft 5m Voltage 230V 12000 Btu h RAS 12EKCV UL 9000 Btu h RAS 09EKCV UL i l I I I L I I Condition Indoor DB80 F WB67 F Capacity Ratio 100 i is 95 97 99 100 102 104 106 108 109 111 113115 Outdoor Temperature F C 2 2 Operation Characteristic Curve lt Cooling gt V 10 20 30 40 50 60 70 80 90 100 110 120 0 Compressor Speed rps 2 3
34. 4 C 61 F 16 C AM 102 F 39 C 52 F 11 60 F 15 5 C 51 F 10 5 C 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 6 Release protective control by tempera ture of indoor heat exchanger e 5 a g g c x ya Operation flow and applicable data etc lt In cooling dry operation gt Prevent freezing control for indoor heat exchanger In cooling dry operation the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Usual cooling capacity control When the value is in Q zone the compressor speed is kept Reduction of compressor speed 33 FILE SVM 13071 Description 1 When temperature of the indoor heat exchanger drops below 41 F 5 C the compressor speed is reduced P zone 2 When temperature of the i
35. 5 8 By increasing the clamp bar s receiving hole strength of spring in Flare tool clutch type the tool has been improved Gauge for projection adjustment Used when flare is made by using conventional flare tool Connected to conventional vacuum pump It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose The charge hose connecting part has two ports one for conventional refrigerant 7 16 UNF 20 threads per inch and one for R410A If the vacuum pump oil mineral mixes with R410A a sludge may occur and damage the equipment Vacuum pump adapter Gas leakage detector Exclusive for HFC refrigerant Incidentally the refrigerant cylinder comes with the refrigerant designation R410A and protector coating in the U S s ARI specified rose color ARI color code PMS 507 Also the charge port and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hose s port size 54 10 3 Outdoor Unit 10 3 1 Installation Location A location which provides enough spaces around the outdoor unit as shown in the diagram above A location which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration A location where the operation noise and discharged air do not disturb your neighbors A location which is not exposed to a strong winds A location free of combustible gases
36. ALVE PACKED 6 35 DIA VALVE PACKED 9 52 DIA BONNET 6 35 DIA BONNET 9 52 DIA FIXING PLATE VALVE RIGHT CABINET ASSEMBLY BODY PMV COIL PMV Location No 18 54116 FILE SVM 13071 36 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 12 7 mm Part is Description No 43 58306 43 58311 43 20319 43 21419 43 47001 43 97001 43 49335 43 46359 43T63324 43 63319 43 39337 43 63318 43 63317 43 63316 43 19331 43 49338 43T63330 REACTOR RAS 12EACV UL REACTOR RAS O9EACV UL PROPELLER FAN FAN MOTOR NUT FLANGE NUT RUBBER CUSHION AWAY VALVE AWAY VALVE COIL ASSEMBL HOLDER SENSOR MOTOR BASE CONNECTION PLATE HOLDER SENSOR HOLDER SENSOR HOLDER SENSOR FIN GUARD FUSIBLE PLUG PRESSURE SWITCH 13 4 Board Layout Location No o memi 43762320 HEATSINK 43T6V436 PC BOARD RAS O9EACV UL PC BOARD RAS 12bEACV UL TERMINAL 5P FUSE 43T6V437 43760404 43760403 FILE NO SVM 13071 1 Sensor O6 1 TS Sensor 06 3 Sensor 06 TD Sensor 04 Location Ep me 43150328 TEMPERATURE SENSOR 43762313 BASE PLATE PC 43750329 SENSOR HEAT EXCHANGER 43150330 SENSOR HEAT EXCHANGER 43750331 SENSOR HEAT EXCHANGER 111 TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAM BOL BANGKADI AM
37. Capacity Variation Ratio According to Temperature lt Cooling gt mods oney Ajoedeo 91 93 90 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 FILE SVM 13071 3 REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC R410A which does not damage the ozone layer The working pressure of the new refrigerant R410A is 1 6 times higher than conventional refrigerant R22 The refrigerating oil is also changed in accordance with change of refrigerant so be careful that water dust and existing refrigerant or refrigerat ing oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time The next section describes the precautions for air conditioner using the new refrigerant Conforming to contents of the next section together with the general cautions included in this manual perform the correct and safe work 3 1 Safety During Installation Servicing As R410A s pressure is about 1 6 times higher than that of R22 improper installation servicing may cause a serious trouble By using tools and materi als exclusive for R410A it is necessary to carry out installation servicing safely while taking the following precautions into consideration 1 Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A If other refrigerant than R410A is mixed pressure in the re
38. E 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 Set it correctly Gas amount check and valve clogging check Remove TC sensor connector from the board in indoor unit Remove connector from the board Operate the air conditioner in COOL mode by RESET button on indoor unit sound is heard if keeping pushed RESET button for 10 seconds The operation enters temporary operation mode which fixes opening degree of compressor speed Check condensation at outlet of PMV and then check operating pressure from the service port Existence of condensation at outlet of P M V YES If there is condensation at outlet 1 4 inch 6 35mm valve side the valve is clogged Replace valve Check the operating pressure from service port and add gas if pressure is low 83 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 Check 25A fuse 01 failure NO YES Check component parts of control board assembly by visual damage burn Etc Replace fuse Turn ON power Supply Check terminal Voltage of electrolytic capacitor ar
39. ET button pressed for 10 seconds or more the temporary COOL operation is performed NO Did you press RESET button N NO for 3 seconds or more YES Did you press RESET button N YES for 10 seconds or more NO Switch to AUTO RESTART control Temporary COOL Operation Temporary AUTO operation Filter lamp ON Press RESET button 25 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 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed 3 When keeping RESET button pressed for 10 seconds or more Pi sound is heard and the temporary COOL operation starts 4 If the filter lamp goes on press RESET button to go off the filter lamp and then press RESET button again 5 To stop the temporary operation press the button again FILE SVM 13071 Operation flow and applicable data etc Description 10 Discharge temperature control Td value Control operation Judges as an error and stops the compressor 243 F 117 C 233 F 112 C 226 F 108 C 221 F 105 C Reduce the compressor speed Reduce slowly compressor speed Keeps the compressor speed If the operation is performed with
40. ETHING ELSE IT CAUSE GENERATION OF POISONOUS GAS WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Before installing modifying or servicing system main electrical disconnect switch must be in the OFF position There may be more than 1 disconnect switch Lock out and tag switch with a suitable warning label Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches Installation work must be purformed by qualified personnel only Specified tools and pipe parts for model R410A are required and installation work must be done in accordance with the manual HFC type refrigerant R410A has 1 6 times more pressure than that of conventional refrigerant R22 Use the specified pipe parts and ensure correct installation otherwise damage and or injury may be caused At the same time water leakage electrical shock and fire may occur Be sure to install the unit in a place which can sufficiently bear its weight If the load bearing of the unit is not enough or installation of the unit is improper the unit may fall and result in injury Electrical work must be performed by trained qualified installers and service mechanics in accordance with the code governing such installation work internal wiring regulations and the manual A dedicated circuit and the rated voltage must be used Insufficient power supply or improper installation may
41. HIGH ECO e COMFORT SLEEP ON timer setup e QUIET OFF timer setup e 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 Timer function Indoor heat exchanger release control Serial signal send receive Outdoor unit yi 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 Pulse Modulating valve Delay function of compressor reactivation P M V Current release function 4 Way valve GTr over current preventive 28 FILE NO SVM 13071 Item Operation flow and applicable data etc 1 Basic 2 Cooling operation Sheet The operations are performed in the following parts by controls according to cooling conditions 1 Receiving the operation ON signal of the remote controller the cooling 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 con
42. Indoor Unit Control Unit FILE NO SVM 13071 1 Functions 3 minute Delay at Restart for Compressor Fan Motor Starting Control Processing Temperature Processing 1 1 Louver Motor Drive Control 1 Indoor Fan lt Motor Control Louver Motor Timer Serial Signal Communication Power Supply Circuit Converter D C circuit Noise Filter From Outdoor Unit 208 230 1 60 REMOTE CONTROLLER Clean Function Serial Signal Transmitter Receiver Serial Signal Communication Operation Command and Information Remote Controller Operation 5 Operation Mode Selection AUTO COOL DRY FAN Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting ECO Hi POWER COMFORT SLEEP QUIET SLEEP 1 3 5 9 OFF TIMER Indoor Fan Motor Infrared Rays 36 7kHz FILE NO SVM 13071 8 2 Outdoor Unit Inverter Assembly Josseidwoy JoopinO LINN YOOGLNO HUN ONIN Y O IN OA EA slnd ov lt oq JOWOAU lt oq JoyeAu queuing Pno queuing JBAUG 2v Josuos J H AUu0O9 2 noun Aouenbe y jueuno Jomod Joopul o
43. M 13071 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 are shown in continuity test by the tester C12 C13 C14 Case that product is good D D Pointer swings once and returns slowly When performing test once again under another MCC 5009 polarity the pointer should return Soldered surface o Heat sink IGBT side C12 C13 C14 500uF Diode block 1 Turn OFF the power supply breaker 2 Completely discharge the four electrolytic capacitors 3 Remove the diode block from the PCB which is soldered in place 4 Use a multimeter with a pointer to test the continuity and check that the diode block has the proper rectification characteristics 10 10 to 20 Q when the multimeter probe is reversed 90 FILE NO SVM 13071 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 started rotating Outdoor fan motor rotates or does not rotate according to the position where the fan stopped etc Remote c
44. N31 Replace indoor fan motor Peplace main P C board Y Y _ 79 FILE NO SVM 13071 4 Indoor fan motor automatically starts to rotate by turning on power supply For AC fan motor in RAS 09EKCV UL Cause AC motor is only coil and Hall IC inside packing all driving control or circuit locate on a main PC Board Inspection procedure 1 Turn on breaker 2 After Fan motor operate off A C by remote controller 3 Turn off breaker for a while then turn it ON 3 1 If fan motor not operate it means an unit in Auto restart operation see more detail in P 45 46 3 2 If Fan motor still operate means P C Board mal function Replace P C Board For DC fan motor in RAS 12EKCV UL Cause The IC is built in the indoor fan motor Therefore the P C board is also mounted to inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply Inspection procedure 1 Turn on breaker 2 After Fan motor operate off A C by remote controller 3 Turn off breaker for a while then turn it ON 3 1 If fan motor not operate it means an unit in Auto restart operation see more detail in P 44 45 3 2 If Fan motor still operate follow the below 3 2 1 Remove the grille 3 2 2 Remove the cover terminal by release one screw 3 2 3 Check DC voltage with CN31 connector while the fan motor is rota
45. PHUR MUANG PATHUMTHANI 12000 THAILAND
46. Packed valve at gas side Fig 10 5 1 62 Service Port Valve Rod Cap Fig 10 5 2 FILE SVM 13071 10 6 SYSTEM REQUIREMENTS 10 6 1 Piping Field supplied Refrigerantcharge Minimum refrigerant line length between the outdoor Length of refrigerant Pipe Additional refrigerant unit and indoor unit is 6 6ft 2m Maximum pipe lengths 6 6 50 FP 9 2 15 Unit ft m None Height difference Indoor Outdoor H ft m Add 0 22oz ft 20g m of 50 66 Refrigerant for piping that exceeds 15 20m 50ft 15m up to 66ft 20m Allowable Pipe length T ft m 66 20 33 10 Caution during addition of refrigerant Max amount of additional refrigerant is 0 22 Ibs 100g Charge the refrigerant accurately Overcharging may cause serious trouble to the compressor Minimum refrigerant pipe is 6 6ft 2m Using pipe shorter than that may cause a malfunction of the compressor or other components 10 6 2 Power supply Connection and Connecting Cable The power supply shall be connected to the outdoor unit by 3 wires Fig 10 6 1 The connecting cable between the indoor unit and outdoor unit is 4 wires This cable provides the power for the indoor unit and the communication signal between the outdoor unit and indoor Refrigerant pipe sizes unit Consult local building codes NEC National Electrical Code Liquid S ei
47. Press RESET button for more than three seconds Less than 10 seconds RESET button 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 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 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 43 9 4 Remote control 9 4 1 Remote control and its functions FILE NO SVM 13071 1 D Infrared signal emitter Start Stop button 3 Mode select button MODE amp Temperature button TEMP 5 Fan speed button FAN Swing
48. R7 32x43 64L R5 5x17L U Shape For 5 16 13 32 8 210 Anchor Bolt Air Inlet 3 15 16 Inch or 23 5 8 600 100 mm or more 5 600 23 5 8 Inch or more 600 mm or more 23 5 8 or more mm or more 2 07 16 9 16 11x14 Oval Hole For 25 16 013 32 08 010 Anchor Bolt 17 5 1 FILE NO SVM 13071 5 WIRING DIAGRAM RAS 09EKCV UL RAS 09EACV UL COMPRESSOR Q200 205 Q300 305 IGBT P C BOARD MOS FET MCC 5009 101 VARISTOR YEL TS SUCTION PIPE TEMP SENSOR SURGE ABSORBER CN602 VARI TOR DiscHSRGE PIPE TEMP SENSOR CONDENSER PIPE TEMP SENSOR CN500 I 7 PRESSURE SW 1 1 et a COLOR IDENTIFICATION BLKBLACK WHLWHITE BLU BLUE BRW BROWN RED RED ORN ORANGE PNK PINK PUR PURPLE f SUPPLY i GRY GRAY YELYELLOW Heat Exchanger Indoor terminal block POWER SUPPLY From outdoor Unit O GRN amp YEL Fan Motor T3 15A Fuse F01 Heat Exchanger Sensor CN62 TO BLU COS O HO 1 20 S Thermo Sensor Varistor Line TA WHI Filter Louver Motor gt a E o 2 5 zd 5 N gt x 2 n a Color i
49. RK 10 5 EVACUATING 10 5 1 Evacuating After the piping has been connected to the indoor unit you vacuum both units as once 1 Take away dust and moisture inside of the connecting pipes 2 Tighten the connections between pipes and unit 3 Evacuate the air in the connecting pipes using a VACUUM PUMP 4 Check gas leak connected points 5 Be sure to fully open the packed valves before Vacuuming Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump Do not re use the refrigerant in the outdoor unit For details see the vacuum pump manual Using a vacuum pump Be sure to use a vacuum pump with counter flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops If oil inside of the vacuum pump enters the air conditioner which uses R410A refrigeration cycle trouble may happen 1 Connect the charge hose from the manifold valve to the service port of the packed valve at gas side 2 Connect the charge hose to the port of the vacuum pump 3 Open fully the low pressure side handle of the manifold valve gauge 4 Operate the vacuum pump to start evacuating Perform evacuaion for about 15 minutes if the piping length is 66 feet 20 m assuming a pump capacity of 27 liters per minute Then confirm that the compound pressure gauge reading is 101 kPa 76 cmHg 5 Close t
50. TOSHIBA Carrier SERVICE MANUAL FILE NO SVM 13071 2 AIR CONDITIONER SPLIT TYPE Indoor Unit Outdoor Unit lt High Wall Cooling Type gt lt Cooling Type gt RAS 09bEKCV UL RAS 09EACV UL RAS 12bEKCV UL RAS 12EACV UL HFC Revised Feb 2014 10 11 12 13 FILE NO SVM 13071 CONTENTS SAFETY PRECAUTIONS U uuu u 3 SPECIFICATION S itt aie remi hohe tero uuu 6 REFRIGERANT R410A 8 CONSTRUCTION VIEWS 5 5 202 2 2525150000850 825 0 16 18 SPECIFICATIONS ELECTRICAL PARTS 20 REFRIGERANT CYCLE DIAGRAM 2 21 CONTROL BLOCK DIAGRAM 4 24 OPERATION DESCRIPTION 26 INSTALLATION PROCEDURE roii iiio eoe 48 HOW TO DIAGNOSE THE TROUBLE 65 HOW TO REPLACE THE MAIN PARTS 92 EXPLODED VIEWS AND PARTS LIST 108 FILE NO SVM 13071 1 SAFETY PRECAUTIONS Installing staring up and servicing air conditioning equipment can be hazardous due to system pressur
51. URE 10 1 Installation Diagram of Indoor and Outdoor Units or more Installation plate Air inlet grille Batteries Flat head Wood screw 4 Remote control holder Vinyl tape Apply after carrying out a drainage test Wireless remote control 24 in 600 mm or more only when unobstructed to the front and both sides Extension drain hose Not available provided by installer Remark Details of accessory and installation parts can be found in the accessory section Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type following the and positions d 48 FILE NO SVM 13071 C For the rear left and left piping N _ Wall Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation Do not allow the drain hose to get slack Cut the piping hole slightly sloped downward Make sure to run the drain hose sloped downward MM N The auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left Right al a right Bottom Rear 1 right let Bottom left A Insulate the refrigerant pipes separately not together 5 16 in 8 mm thick heat resisting polyethylene foam 3 Batteries 2 Wireless remote controller
52. age to electrical components Such operation could void any applicable warranty 1 The supply voltage must be the same as the rated voltage of the air conditioner 2 Prepare the power source for exclusive use with the air conditioner NOTE Power supply cord e Wire type minimum AWG14 Stripping length of the Power supply cord and Interconnecting cable r4 Terminal block H H i H E gne L1 2 S Interconnecting cable 6 Fig 10 3 6 111258 T Power supply cord Unit inch mm ye 10 2 12 16 70 1 3 16 30 Ground line 1 9 16 40 Ground line Connecting cable Power cord Fig 10 3 7 FILE NO SVM 13071 Lock nut Bi c 2 22 Valve cover Conduit plate Connector Wrong wiring connection may cause some electrical parts burn out Be sure to comply with LOCAL CODES Every wire must be connected firmly If incorrect or incomplete wiring is carried out it will cause an ignition or smoke _ 54 NOTE Interconnecting cable e Wire type minimum AWG14 10 4 Indoor Unit 10 4 1 Installation Location A location which provides clearances around the indoor unit as shown in the diagram in the CLEARANCES section A location where there are no obstacles near the air inlet and outlet A locat
53. ain leakage from the plug Insert a hexagon wrench 3 16 in 4 mm Fig 10 4 18 Firmly insert the drain hose and drain cap otherwise water may leak n case of right or left piping After making 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 4 19 n case of bottom right or bottom left piping After making 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 4 20 FILE NO SVM 13071 Left hand connection with piping Bend the connecting pipe so that it is laid within 1 5 8 in 43 mm above the wall surface If the connecting pipe is laid exceeding 1 5 8 in 43 mm above the wall surface the indoor unit may set on the wall unstably When bending the connecting pipe make sure to use a spring bender to avoid crushing the pipe Bend the connecting pipe within a radius of 1 3 16 im 30 mm To connect he pipe after the unit has been installed figure To the forefront of flare a Gas side Liquid side Outward form of indoor unit y R 1 3 16 in R 30 mm Use polisin 52 polyethylene core or the like for bending pipe Use the handle of screwdriver etc Fig 10 4 21 1 5 8 in 43 mm y NOTE If the pipe is bent incorrectly the indoor unit may set on the wall uns
54. cause electrical shock or fire Use a cabtyre cable to connect wires in the indoor outdoor units Midway connection is not allowed Improper connection or fixing may cause a fire Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be firmly placed Improper cover installation may cause increased heat fire or electrical shock at the terminal area Be sure to use only approved accessories or the specified parts Failure to do so may cause the unit to fall water leakage fire or electrical shock After the 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 fanheater stove or gas range it causes generation of poisonous gas Make sure the equipment is properly grounded Do not connect the ground 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 If 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 nay cause electrical shock or fire Installation work must be performed following the instructions in this installation manual Improper installation may cause water leakage electrical shock or f
55. de or CEC Canadian Electrical Code for special requirements Outer Thickness Outer diameter Thickness The following are the electrical requirements Diameter In mm In mm In mm In mm Product FCU RAS 09EKCV UL RAS 12EKCV UL Model P CDU RAS 09EACV UL RAS 12EACV UL 01 4 6 35 0 03 0 8 23 8 9 52 0 03 0 8 Both lines need to be insulated Use minimum 5 16 in 8mm wall thickness c SN CON onnect to CDU FCU CDU P ower SUPPIY cord No of Core 3 11 12 Not provide Interconnecting No of Core 4 L1 L2 S cable between FCU amp CDU mm Not provide ET MCA Minimum Circuit Amps MOCP Maximum Over Protection Device Amps 63 10 7 5 10 7 1 Gas Leak Test Valve cover Check the flare nut connections for the gas leak with a gas leak detector or soap water Check places for the outdoor unit Fig 10 7 1 10 7 2 Test Operation Check places for flare nut connection indoor unit To switch the TEST RUN COOL mode press RESET button for 10 seconds The beeper will make a short beep FILE NO SVM 13071 1 10 7 3 Auto Restart Setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure The product was shipped with Auto Restart function in the ON position Turn
56. e 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 mode select an operation mode again if the compressor keeps stop status for 15 minutes 67 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 FILE NO SVM 13071 Firstly use the method 1 for diagnosis Then use the method 2 or 3 to diagnose the details of troubles 11 3 Judgment by Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner if the protective circuit operates the contents of self diagnosis are displayed with block on the indoor unit indication section Indoor indication lamp flashes Which lamp does flash NOTES Some check code will flash display of the i
57. e in Voltage Rate 10 x 1 414 Replace control board Turn ON the unit by remote controller and wait for 3 min Cooling 17 C 84 FILE NO SVM 13071 Connect discharge resistance approx 100Q 40W or soldering iron plug between terminals of the electro lytic capacitor 500uF of C14 with printed CAUTION HIGH VOLTAGE on P C board Discharging position Discharging period 10 seconds or more Plug of soldering iron FILE NO SVM 13071 Does outdoor fan NO operate normally YES Turn OFF power supply YES Does compresser operate normally NO Remove connector CN300 of outdoor fan motor NO Check winding resistance by ohmmeter are correct 2 7 Check rotor locking by rotate Is norma with hand Can it rotate Turn OFF power YES supply Replace outdoor Replace control fan motor board Check compressor NO winding resistance correct YES Replace compressor Turn ON power supply Check voltage of the compressor connector is in rate AC150V 270V YES NO Replace Replace control compressor board _ 85 FILE SVM 13071 11 8 How to Check Simply the Main Parts 2 Inspection procedures 1 When a PC board is judged to be defective 11 8 1 How to check the P C board Indoor unit check for disconnection burning or discolora 1 Ope
58. e or use remote control to turn on air conditioner Display will show in green color Hold down the RESET button for more than 20 seconds The air conditioner will stop suddenly when the RESET is pressed but keep holding it continue The will beep 3 times in the first 3 seconds but it is not related to Self Cleaning function After holding about 20 seconds the air conditioner will beep 5 times without any blinking of display The Self Cleaning Operation had been cancelled Remark Presetting of Self Cleaning function above AUTO RESTART function had been cancelled To set AUTO RESTART again please follow item 9 3 1 How to set Self Cleaning function To set the Self Cleaning function proceed as follows Press RESET button one time or use remote control to turn on air conditioner Display will show in green color Hold down the RESET button for more than 20 seconds The air conditioner will stop suddenly when the RESET is pressed but keep holding it continue Then will beep 3 times is the first 3 seconds but it is not related to Self Cleaning function After holding about 20 seconds the air conditioner will beep 5 times and OPERATION display blinks 5 times The Self Cleaning function had been set Remark Presetting of Self Cleaning function above AUTO RESTART function had been cancelled To set AUTO RESTART again please follow item 9 3 1 RESET button 14 Remote A selection Operat
59. e to reach indoor unit 2 Cut the pipe with a pipe cutter O x x x As 90 Obliquity Roughness Warp x s Fig 10 3 3 3 Insert a flare nut into the pipe and flare the pipe 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 two wrenches as show below Half union Flare nut Externally Internally threaded side threaded side Use a torque wrench to tighten Use a wrench to secure Fig 10 3 4 Do not apply excess torque Otherwise the nut may crack depending on the conditions Outer dia of copper pipe Tightening torque 1 4 in 26 35 mm 10 to 13 Ibf ft 14 to 18 N m 03318 in 29 52 mm 24 to 31 Ibf ft 33 to 42 N m Tightening torque for connection of flare pipe The pressure of R410A is higher than R22 Approx 1 6 times Therefore securely tighten the flare pipes which connect the outdoor unit and the indoor unit with the specified tightening torque using a torque wrench Flare at indoor unit side Flare at outdoor unit side Fig 10 3 5 10 3 3 Wiring Connection NOTE All wiring and connections must comply with NEC CEC and local codes Connect all wires to the correct terminal on the wiring terminal blocks Make sure that all connectors are secure Size connectors per the ratings listed in the System requirement section System
60. en itis available on the market FILE SVM 13071 1 Table 3 2 1 Thicknesses of annealed copper pipes Thickness in mm Nominal diameter in Outer diameter mm R410A R22 0 0315 0 80 0 0315 0 80 0 0315 0 80 0 0315 0 80 0 0315 0 80 0 0315 0 80 2 Joints For copper pipes flare joints or socket joints are used Prior to use be sure to remove all contaminants a Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm In such a case socket joints can be used Sizes of flare pipe ends flare joint ends and flare nuts are as shown in Tables 3 2 3 to 3 2 6 below b Socket Joints Socket joints are such that they are brazed for connections and used mainly for thick pipings whose diameter is larger than 0 7874 in 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 copper pipe jointed mm in mm Nominal diameter in 0 0197 0 50 0 0236 0 60 0 0276 0 70 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 equipment is used and and that refrigerant does not leak When using lubricating oi
61. er operation started and 10 minutes or more are required to restart the unit Gas circulation amount is down Measure gas pressure Thermo operation of compressor Gas 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 Refer to the chart in 11 6 Clogging of pipe and coming off of TC sensor 82 11 6 Check Code 1 Miswiring in indoor outdoor units and 1 lt Check procedure gt 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 13071 P M V correctly set YES Set it correctly lt NO Is connecter of coil connected to inverter YES Set it correctly lt Disconnect PMV connector then check coil resistance Is it 46 40 white Red Red Orange Yellow Red Blue Red Replace coil valve Are temp sensors of indoor outdoor units correctly set to the holder NOT
62. er upper or lower limit position SWING button during swing operation is performed in width 35 from the limit which the operation the louver stop position exceeded starts swinging Upper Limit Upper Limit Position Position Fixed Swing Position range 35 before start swing Fixed Position gt Lower Limit Swing Lower Limit before start Position range 35 Position swing 34 Operation flow and applicable data etc 8 ECO When pressing ECO button on the remote controller a operation Economic operation is performed lt Cooling operation gt This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure ASSN Room temp Set temp ES m FILE NO SVM 13071 Description lt Cooling operation gt 1 The control target temperature increase 1 0 F 0 5 C per hour up to 3 5 F 2 C starting from the set temperature when ECONO has been received on presetting and can change E 2 The indoor fan speed is depend FAN The indoor fan speed is not controlled and can be selected during the ECO operation every speed after setting ECO operation 3 The compressor speed is controlled as shown in the left figure DRY max COOL min 6 x 5 COOL min 9 Temporary Pressing RESET button starts the temporary opera operation tion of AUTO operation When keeping RES
63. eration 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 40 18 Comfort Operation flow and applicable data etc One touch comfort is the fully automated operation that is set according to the preferable condition in a region Fan Operation Hi POWER AUTO Time after operation starts min Hi POWER AUTO 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 FILE NO SVM 13071 Description 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 Target temperature is 22 C 72 F 3 Louver position is set as swing position 4 Fanis controlled as followings 19 Hi POWER Mode Hi POWER button on the remote controller is pressed When Hi POWER button is pressed while the indoor unit is in Auto or cooling operation Hi POWER mark is indicated on the displa
64. eration manual along with the installation manual FILE NO SVM 13071 2 SPECIFICATIONS 2 1 Specification Unit model Indoor Outdoor Cooling capacity Cooling capacity range RAS 09EKCV UL RAS 09EACV UL 9000 3750 10580 Power supply 1Ph 60hz 208V 230V Electric Operation mode Cooling characteristic Running current 208 230V 0 22 0 20 Power consumption 208 230V W 807 OE po Power factor Operation mode Cooling 3 46 3 13 4 59 4 15 0 Running current 208 230V E 20 ala v c lt I gt o N gt Power factor Starting current 208 230V e 9 9 Power consumption 208 230V W 90 gt 3 68 3 30 4 81 4 35 Btu W h Btu W h High dB A dB A 13 0 20 0 J O o a o r 2 8 3 me mo LE N A3 RAS 09EKCV UL RAS 12EKCV UL Indoor unit Unit model Dimension i in mm in mm 10 25 32 275 10 25 32 275 31 1 8 790 31 1 8 790 Depth in mm 8 1 16 205 8 1 16 205 Ibs k 54 amp la sls z 2 gt a Fan motor output 3 45 40 50 30 303 8 6 406 11 5 cfm m3 min Outdoor unit Unit model Dimension in mm in mm in mm Net weight Ibs Compressor Motor output RAS 09EACV UL RAS 12EACV UL gt 3 v 2
65. erence between the room tempera ture and the setup temperature Tsc Setup temperature Tsc Set temperature on remote controller Ts 0 1 0 C 0 to 2 F Ta 3 When the room temperature is lower 2 F 1 C or less than the setup temperature turn off the compressor 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 2 0 1 0 1 0 0 5 Tsc Fan speed 220 2 Operation flow and applicable data etc Indoor fan lt In cooling operation gt motor control The indoor fan motor is operated 5 stages in MANUAL mode Fig 1 and 5 stages in AUTO mode Fig 2 Table 1 shown the indoor fan speed and air flow rate of each mode COOL ON Fan speed setup MANUAL AUTO Indication Fan speed W6 L M 2 W9 M H 2 WC Air volume AUTO M WB 4 5 2 5 43 5 2 0 3 Fan speed M L x 3 4 L 27 15 4 Fan speed M L x 2 4 L 2 0 1 0 5 Fan speed L x 1 4 L 1 0 0 5 Linear approximation from M and L Table 1 Indoor fan air flow rate FILE NO SVM 13071 Description Symbols UH Ultra High H High M Medium M Medium L Low L Low L Low UL Ultra Low SUL Super Ultra Low The fan speed broadly varies due to position of the louver etc The described value indicates
66. es electrical components and equipment location roofs elevated structures etc Only trained qualified installers and service mechanics should install start up and service this equipment Untrained personnel can perform basic maintenance functions such as cleaning coils All other operations should be performed by trained service personnel When working on the equipment observe precautions in the literature and on tags stickers and labels attached to the equipment Follow all safety codes Wear safety glasses and work gloves Keep quenching cloth and fire extinguisher near by when brazing Use care in handling rigging and setting bulky equipment Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit Consult local building codes and National Electrical Code NEC for special requirements Recognize safety information This is the safety alert symbol When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severs personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is
67. ess Control wire Terminal Tighten firmly but not over 0 25 N m 0 03 kgf m Fig 10 4 12 57 FILE NO SVM 13071 A WARNING EXPLOSION HAZARD Do not install batteries for hard wire installation Rear rig ht h Control wire Remote controller hanger Remote controller Tighten firmly but not over 0 15 N m 0 02 kgf m Fig 10 4 13 Remark 1 It is recommended to use double insulation lead wire Control wire Screw 23 1 16L for hang remote controller Wall Screw 03 1 x 251 for to battery cover to connect remote control to the air conditioner 2 For hard wire operation 1 remote control can control only 1 indoor unit 3 In wire operation PRESET TIMER and CLOCK will i return to their initial condition when the user shuts down the power supply to the air conditioner INSULATE BOTH LINES Changing drain hose Piping preparation Front panel slit Die cutting Right lt Cie Rear right Bottom Rear Lent right left Bottom left 1 Die cutting front panel slit With a pair of nippers cut out the slit on the leftward or right side of the front panel for the left or right connection and the slit on the bottom left or right side of the front panel for the bottom left ot right connection 2 Changing drain hose For leftward connection bottom leftward connection and rearleftward connectio
68. expansion valve coil Procedure 1 Detachment 1 Perform step 1 in all the steps 1 5 2 Remove the coil by pull it upward 2 Attachment 1 Insert a valve coil to value body by push it downward And confirm to fix it surely FILE NO SVM 13071 Remarks Wire guard 1 Detachment 1 Perform work of item 1 of 2 Remove the front cabinet and put it down so that wire guard side directs downward Perform work on a corrugated cardboard cloth etc to prevent flaw to the product 3 Remove the guard stopper 4 pcs from hook of wire guard 4 Turn the front cabinet into opposite site then pull wire guard up ward Attachment 1 Insert claws 2 positions of the wire guard in the holes of the front cabinet Push the hook 4 positions by hands and fix by guard stopper Check that all the claws amp hooks are fixed to the specified positions GUARD STOPPER 106 AS WIRE GUARD FRONT CABINET FILE NO SVM 13071 Part name Procedure Remarks TE sensor outdoor heat exchanging temperature sensor Attachment Install the sensor onto the straight pipe part of the condenser output pipe Sensor lead Sensor lead Detail C for O9EACV UL Detail C for 12EACV UL TS sensor Suction pipe temperature sensor Attachment Install the senser onto the straight pipe part of the suction pipe Be careful for the lead di
69. frigeration cycle becomes abnormally high and it may cause personal injury etc by a rupture 2 Confirm the used refrigerant name and use tools and materials exclusive for the refrigerant R410A The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air condi tioner using R410A as refrigerant To prevent mischarging the diameter of the service port differs from that of R22 3 If a refrigeration gas leakage occurs during installation servicing be sure to ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas may occur 4 When installing or removing an air conditioner do not allow air or moisture to remain in the refrig eration cycle Otherwise pressure in the refrig eration cycle may become abnormally high so that a rupture or personal injury may be caused 5 After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged with a large volume of refrigerant is installed in a small room it is necessary to exercise care so that even when refrigerant leaks its concentration does not exceed the marginal level If the refrigerant gas leakage occurs and its concentration exceeds the marginal level an oxygen starvation accident may
70. gure Push Fig 10 4 23 Push 10 4 6 Drainage 1 Run the drain hose slopping downward NOTE The hole should be made at a slight downward slant on the outdoor side The drain is internally trapped An external trap is not required Do not form the drain hose into the waved shape Do not rise the drain hose 21 50 mm or more x Do not put the drain hose end into water Do not put the drain hose end in the drainage ditch Fig 10 4 24 60 FILE SVM 13071 Put water in the drain pan and make sure that the water is drained out When connecting an extension drain hose insulate it with shield pipe Shield pipe KR 2 77777771 Jae Drain hose Inside the room N Extension drain hose Fig 10 4 25 CAUTION Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping This air conditioner has the structure designed to drain water collected from dew which forms on the back of the indoor unit to the drain pan Therefore do not store the power cord and other parts at a height above the drain guide Wall Drain guide Space for pipes Fig 10 4 26 FILE SVM 13071 Remote control Remote control A B selection Place the remote control away from obstacles such In case
71. he low pressure side valve handle of the manifold valve gauge 6 Open fully the valve stem of the packed valves both gas and liquid sides Remove the charging hose from the service port 8 Securely tighten the caps of packed valves Compound pressure gauge Pressure gauge operation UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Never use the system compressor as a vacuum pump 10 5 2 Packed valve handling precautions 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 1 2 in 12 7 mm and smallers 3 16 in 4 mm Securely tighten the valve cap with torque in the following table Cap Cap Size H Torque 43 64 in 3 4 in H17 H19 10 to 13 Ibf ft 14 18 N m Valve Rod Cap 55 64 in 1 3 16 in H22 H30 24 to 31 Ibf ft 33 42 N m 35 64 in 37 to 46 Ibf ft H14 50 62 Service Port Cap 43 64 in 10 to 13 Ibf ft 14 18 N m 101 kPa 76 cmHg n Z Manifold valve Handle Lo Charge hose For R410A only Connecting pipe EN EN Handle Hi O OF Keep full closed Charge hose For R410A only Vacuum pump adapter for counter flow prevention For R410A only Packed valve at liquid side Service port Valve core Setting pin
72. he repairs have been completed after the front panel and cabinet have been installed perform a test run and check for smoking unusual sounds and other abnormalities If this check is omitted a fire and or electric shocks may occur Before proceeding with the test run install the front panel and cabinet Ensure that the following steps are taken when doing repairs on the refrigerating cycle 1 Do not allow any naked flames in the surrounding area If a gas stove or other appliance is being used extinguish the flames before proceeding If the flames are not extinguished they may ignite any oil mixed with the refrigerant gas Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed very carefully when conducting checks since directly touching the parts on the control circuit 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
73. ic balance for I charging Outdoor unit Service port Fig 3 4 1 Configuration of refrigerant charging _ 13 FILE NO SVM 13071 1 Be sure to make setting so that liquid can be charged 2 When using a cylinder equipped with a siphon liquid can be charged without turning it upside down It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant Accordingly when charging refrigerant from the refrigerant cylinder to the equipment charge it turning the cylinder upside down if cylinder is not equipped with siphon Cylinder with siphon Gauge manifold OUTDOOR un Refrigerant cylinder Electronic balance it R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the composi tion of the charged refrigerant changes and the characteristics of the equipment varies 3 5 Brazing of Pipes 3 5 1 Materials for Brazing 1 Silver brazing filler Silver brazing filler is an alloy mainly composed of silver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak i
74. 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 I EN Relation of voltage current and frequency is abnormal 4 times Overloading operation of compressor caused by over charge refrigerant P M V failure etc Compressor failure High current FILE NO SVM 13071 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 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 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 times record error to check code But after re sta
75. iod 10 seconds or more soldering Put each leads Put the compressor through the hole leads through the hole The connector is one with lock so remove it while pushing the part indicated by an arrow Be sure to remove the connector by holding the connector not by pulling the lead wire Part name Control board assembly Procedure 1 Disconnect the leads and connectors connected to the other parts from the control board assembly 1 Leads 3 leads black white orange connected to terminal block Lead connected to compressor Disconnect the connector Lead connected to reactor Disconnect the two connectors 2P 2 Connectors x8 CN300 Outdoor fan motor white See Note CN701 4 way valve 2P yellow CN600 TE sensor 2P white CN700 PMV 6P white CN603 TS sensor 3P white CN601 TD sensor 3P white CN602 TO sensor 2P white These connectors have a disconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the P C board base Remove the heat sink and control board assembly while keeping them screwed together NOTE Disengage the four claws of the P C board base hold the heat sink and lift to remove it 3 Remove the two fixing screws used to secure the heat sink and contr
76. ion 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 gt polarity by discharging resistance approx 100 40W or plug of soldering iron to B terminals a of the C14 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 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 101 4pcs fixing the terminal part of inverter box to the main body 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 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 102 FILE NO SVM 13071 Remarks Inverter cover board Soldered surface Discharging position Discharging per
77. ion flow and applicable data etc Setting the remote controller To separate using of remote control for each indoor unit in case of 2 air conditioner are installed nearly Remote Control B Setup 1 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the indoor unit 3 Push and hold CHK e button on the Remote Control by the tip of the pencil 00 will be shown shown on the display 4 Press MODE e during pushing CHK e B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control B is memorized Note 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has not A display 3 Default setting of Remote Control from factory is A B Display 00 Display 39 FILE NO SVM 13071 Description 1 Purpose This operation is to operate only one indoor unit using one remote controller Description When operating one indoor unit in situation where two indoor units have been installed in the same room or nearby rooms this operation prevents the remote controller signal from being received simultaneously by both units thus preventing both units from operating Operation The indoor unit on which the remote controller selection has been set to B receives the signal of the remote control ler also set to B At the factory the remote controller selection is set to A on al
78. ion 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 5 Hz and it will beep for 10 seconds Beep Beep Beep The timer lamp usually flashes 5 Hz during self diagnosis 11 4 1 How to Use Remote Controller in Service Mode SWING FIX Hi PPOWER ECO ON OFF 9 O 9 C F FILTER CLOCK e TOSHIBA Carrier 2 Alphanumeric characters used for the check codes 5 is 5 is 6 H is A h is B isC d is D nn PRESET FAN ONE TOUCH MODE seen 9 QUIET SLEEP 1 Push CHECK button with a tip of pencil to set the remote controller to the service mode is indicated on the display of the remote controller Push ON A or OFF Y 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 mi ni y II x I X JI LILI an IF 22 The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec e Check the unit with all 52 check codes HH to 23 as shown in Table 11 4 1 Push ON A or OFF Y button to change the check code backward If there is a fault the indoor unit will beep for 10 seconds Beep Beep Beep Note the check code on the display of the remote cont
79. ion which allows easy installation of the piping to the outdoor unit A location which allows the front panel to be opened m The indoor unit shall be installed such that the top of the indoor unit comes to at least 6 6 ft 2 m height Also avoid putting anything on the top of the indoor unit A location that will bear the weight of the unit CAUTION Direct sunlight on the indoor unit s wireless receiver should be avoided The microprocessor in the indoor unit should not be too close to RF noise sources For details see the owner s manual 10 4 2 Cutting a Hole and Mounting the mounting Plate Cutting a hole When installing the refrigerant pipes from the rear J 2 42 946 in 65 mm The cener of the pipe hole is above he arrow 3 15 16 in 100 mm Fig 10 4 1 After determining the pipe hole position on the mounting plate gt drill the pipe hole 2 9 16 in 65 mm at a slight downward slant to the outdoor side FILE NO SVM 13071 NOTE When drilling a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the mounting plate Anchor bolt holes from floor pue 6 6 ft 2 or more Mounting plate Pipe hole Hook Thread Pipe hole Indoor unit Mounting screw Fig 10 4 2
80. ire Check the following items before operating the unit Be sure that the pipe connection is well placed and there are no leaks Check that the service valve is open If the service valve is closed it may cause overpressure and result in compressor damage At the same time if there is a leak in the connection part it may cause air suction and overpressure resulting in damage to the unit or injury In a pump down operation be sure to stop the compressor unit before removing the refrigerant pipe If removing the refrigerant pipe while the compressor is operating with the service valve opened it may cause air suction and overpressure resulting in damage to the unit or injury Do not modity 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 If you detect any damage do not install the unit Contact your dealer immediately FILE NO SVM 13071 CAUTION Exposure of unit to water or other moisture before installation could result in electric shock Do not store it in a wet basement or expose to rain or water After unpacking the unit examine it carefully for possible damage Report any damages to your distributor 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
81. 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 13071 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 Phase 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
82. is normal check the P C board TC sensor The heat Operation Flashes when Check the sensor TC and connection exchanger temperature continues error is detected 2 In case of the sensor and its sensor of the indoor unit connection is normal check the is out of place disconnection P C board short circuit or migration Fan motor of the indoor unit All OFF Flashes when Check the fan motor and connection is failure lock rotor short error is detected 2 In case of the motor and its circuit disconnection etc connection is normal check the Or its circuit on P C board P C board has problem Other trouble on the indoor Depend on Depend on Replace P C board P C board cause of cause of failure failure 70 Block distinction Operation of diagnosis function Air conditioner status Serial signal Indoor unit Check code Display flashing error Flashes when and connecting connecting cable or operates error is detected cable miss wiring continue Flashing stop 2 Operation signal has not Outdoor unit and outdoor unit send from the indoor unit stop start to operate when operation start when the return 3 Outdoor unit has not signal from the send return signal to the outdoor unit is indoor unit when operation normal started 4 Return signal from the outdoor unit is stop during operation Some protector hardware if exist of the outdoor unit open circuit of signal Signal
83. l SS C e L 2 JL pw pw JL AN a a a m mw N L 2 JL 225 pw JL 2 3 E 2 Air outlet E 5 32 63 1 7 8 48 _ m Gn 1 7 8 48 Knockout for bottom leftward piping 4 9 16 116 2 7 1 2 11 16 69 Knockout for bottom rightward piping 18 7 8 480 1 7 19 32 193 Conduit hole 27 8 22 hole Installation plate hanger H T X 2 3 16 56 9 32 7 a 5 3 4 19 Installation plate hanger Connecting pipe 13 25 32 0 35m Flare 23 8 9 52 3 5 16 84 5 24 7 16 621 Drain hose 19 11 16 0 50m Connecting pipe 18 5 8 0 40m Flare 21 4 6 35 2 15 32 Wireless remote controller 31 32 26 Remote controller holder 3 5 16 84 5 For stud bold 02 1 4 6 For stud bold 25 16 8 213 32 10 9 1 4 235 9 1 4 235 8 7 16 215 8 7 16 215 Minimum z Hanger 8 to wall 2
84. l the indoor units There is no A setting display 15 QUIET mode Operation flow and applicable data etc When the QUIET button is pressed the fan of the indoor unit will be restricted the revolving speed at speed L until the QUIET button is pressed once again cancel Quiet mode FILE NO SVM 13071 1 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 condition Because of the fan speed L may cause not enough the cooling capacity 16 COMFORT SLEEP Cooling mode e The preset temperature will increase as show on ECO operation Item No 9 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to select the hours 1hr 3hr 5hr or 9hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode The principles of comfort sleep mode are Quietness for more comfortable When room temperature reach setting temperature Save energy by changing room temperature automatically The air condition can shut down by itself automatically Remarks 1 Comfort sleep mode will not operate in dry mode and fan only mode 17 FILTER Indicator When the elapsed time reaches 1000 hours after conditioner op
85. leakage check Yes Charging cylinder Refrigerant charge Note 2 Note 1 When flaring is carried out for R410A using the conventional flare tools adjustment of projection margin is necessary For this adjustment a copper pipe gauge etc are necessary Note 2 Charging cylinder for R410A is being currently developed General tools Conventional tools can be used In addition to the above exclusive tools the following equipments which serve also for R22 are necessary as the general tools 1 Vacuum pump 4 Reamer 9 Hole core drill 22 9 16 in 65mm Use vacuum pump by attaching 5 Pipe bender 10 Hexagon wrench vacuum pump adapter 6 Level vial Opposite side 3 16 in 4mm 2 Torque wrench For 01 4 03 8 in z Screwdriver 11 Tape measure 26 35 29 52mm 8 Spanner or Monkey wrench 12 Metal saw 3 Pipe cutter Also prepare the following equipments for other installation method and run check 1 Clamp meter 3 Insulation resistance tester 2 Thermometer 4 Electroscope 12 3 4 Recharging of Refrigerant FILE NO SVM 13071 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 Connect the charge hose to packed valve service port at the outdoor unit s gas side When the compound gauge s pointer has indica
86. leaks A location which does not block a passage A location where drain water does not cause any problems Depending on snow level use a field fabricated ice or snow stand When the outdoor unit is to be installed in an elevated position be sure to secure its feet as described in the section above Precautions about Installation is Regions with Snowfall and Cold Temperatures Do not use the supplied drain nipple for draining water Drain the water from all drain holes directly To protect the outdoor unit from snow accumulation install a holding frame and attach a snow protection hood and plate Do not use a double stacked design Install the unit at least 19 11 16 in 500 mm above the snow accumulation line At least 19 11 16 in 500 mm Snow accumulation line Snow protection plate Snow protection hood Anchor bolts Holding frame Fig 10 3 1 52 FILE NO SVM 13071 CAUTION Install the outdoor unit in a location where there are no obstructions near its air intake or air outlet When the outdoor units is installed in a place that is always exposed to strong winds like on the coast or on a high story of a building use a field fabricated wind baffle To minimize the effect of strong winds specially in windy areas install the unit as shown below Fig 10 3 2 10 3 2 Refrigerant Piping Connection Flaring 1 Make sure you have enough pip
87. lectric Parts Assembly Location is Location Part ae Description Description No No No 43121442 STEPPING MOTOR 215 43739328 MOTOR BAND LEFT 43721409 FAN MOTOR RAS O9EKCV UL 216 43739329 MOTOR BAND RIGHT 43721421 FAN MOTOR RAS 12EKCV UL 217 43T09409 HORIZONTAL LOUVER 43 22312 BEARING ASSY MOLD 218 43179313 CAP DRAIN 43 70313 HOSE DRAIN 219 43144446 REFRIGERANT CYCLE ASSEMBLY 43 20325 CROSS FLOW FAN ASSEMBLY 221 43T00488 PANEL SERVICE ASSEMBLY 43711317 PIPE SHIELD 222 43180327 FILTER AIR R 43 83003 HOLDER REMOTE CONTROL 223 43180328 FILTER AIR L 43 60382 MOTOR CORD 224 43 09491 GRILLE OF AIR INLET 43 82310 INSTALLATION PLATE 226 43762328 TERMINAL COVER 43T19333 HOLDER SENSOR 227 43 66340 REMOTE CONTROLLER 43 09408 PIPE HOLDER 229 43182311 PARTITION CONDUIT 43 03378 BACK BODY ASSEMBLY 230 43182312 MOUNT CONDUIT 43 39338 BEARING BASE 109 13 3 Outdoor Unit Location Part 5 Description No No WN 43 00535 43 00459 43 42327 43 00452 43 19342 43 00540 43 41420 43 41431 43 43446 43 43444 43 46358 43 46366 43 47331 43 47332 43 00539 43 00537 43 46360 43 63325 LEFT CABINET BASE PLATE ASSEMBLY UPPER CABINET WIRE GUARD PACKED VALVE COVER COMPRESSOR RAS O9EACV UL COMPRESSOR RAS 12EACV UL CONDENSER ASSEMBLY RAS O9EACV UL CONDENSER ASSEMBLY RAS 12EACV UL V
88. louver button SWING Set louver button FIX a 2n On timer button ON 9 e 8 e 2 9 Off timer button OFF a a 3 00 Sleep timer button SLEEP d Setup button SET ouier E 12 Clear button CLR 0 4 3 Memory and Preset button PRESET 2 Q ry Touch button ONE TOUCH D 9 High power button Hi POWER 9 691 9 6 Economy button ECO olo d Quiet button QUIET 9 SFG Comfort sleep button COMFORT SLEEP XE 9 Filter reset button FILTER Unser 20 Clock Reset button CLOCK 92 Check button CHK XE f 9 4 2 Operation of remote control 1 ONE TOUCH Press the ONE TOUCH button for fully automated operation that is customised to the typical consumer preferences in your region of the world The coutomised settings control temperature air flow strength air flow direction and other settings to provide you alternate contact with ONE TOUCH OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit Press ONE TOUCH Start the operaton 2 AUTOMATIC OPERATION To automatically select cooling or fan only operation 1 Press MODE Select A 2 Press MODE Select 3 COOLING FAN ONLY OPERATION To automatically select cooling or fan only operation 1 Press MODE Select Cool x or Fan only 98 2 Press MODE Set the desired temperature Cooling Min 62 F 17 C Fan O
89. lower speed than one commanded by the serial signal speed is slowly raised up to the commanded speed 208 F 98 C Operates with speed commanded by the serial signal 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 11 Pulse Modulating valve P M V control 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 SH control release control PMV open degree control Stop by remote controller Power OFF SH Super Heat amount Ts Temperature of suction pipe of the compressor Tc Heat exchanger temperature at evaporation side PMV Pulse Modulating Valve Room temp sensor Ta sensor control 36 1 When starting the operation move the valve once until it fits to the stopper Initialize In this time Click sound may be heard 2 Adjust the open degree of valve by super heat amount SH control 3 If the discharge temperature was exces sively up adjust the open degree of valve so
90. ls in the piping processing use such lubricating oils whose water content has been removed When stored be sure to seal the container with an airtight cap or any other cover 1 Flare processing procedures and precautions a Cutting the Pipe By means of a pipe cutter slowly cut the pipe so that it is not deformed b Removing Burrs and Chips If the flared section has chips or burrs refrigerant leakage may occur Carefully remove all burrs and clean the cut surface before installation c Insertion of Flare Nut FILE SVM 13071 d Flare Processing Make certain that a clamp bar and copper pipe have been cleaned By means of the clamp bar perform the flare processing correctly Use either a flare tool for R410A or conven tional flare tool Flare processing dimensions differ according to the type of flare tool When using a con ventional flare tool be sure to secure dimen sion 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 A in mm Nominal Outer Thickness diameter diameter mm in mm ui clutch type Clutch type Wing nut type 0 0315 0 8 0 to 0 0197 0 to 0 5 R ic ite 0 0315 0 8 0 to 0 0197 0 to 0 5 OR 0 0315 0 8 0 to 0 0197 0 to 0 5 Flare tool for R410A Conventional flare tool Table 3 2 4 Dimensions related to flare processingf or R22
91. minal block microcomputer ass y and the P C 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 screw 3 pcs After removing screw remove the valve cover pulling it downward 3 Remove cord clamp screw 3 pcs and then remove connecting cable 4 Remove the upper cabinet screw 5 pcs After removing screws remove the upper cabinet pulling it upward 2 Attachment 1 Attach the upper cabinet screw 5 pcs 2 Perform cabling of connecting cable and attach the cord clamp Fix the cord clamp by tightening the screws screw 3 pcs fitting 2 concave parts of the cord clamp to each connecting cables 3 Attach the valve cover screw 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 two positions of the main unit and attach it pushing upward 100 FILE NO SVM 13071 Remarks UPPER CABINET iu COVER PACKED VALVE Part name Inverter assembly Procedure 1 Perform work of item 1 in D 2 Remove screw ST1T 4 x 10L 2 pcs of the upper part of the front cabinet If removing the inverter cover in this condit
92. n s piping it is necessary to change the drain hose and drain cap How to remove the drain cap Clip the drain cap with needle nose pliers and pull out n EIN i Fig 10 4 15 lt How to install the air inlet grille on the indoor unit gt e When attaching the air inlet grille perform the same process as for removal but in reverse order gt gt _ gt Fig 10 4 14 10 4 4 Piping and drain hose installation lt Piping and drain hose forming gt How to remove the drain hose The drain hose be removed by removing the screw securing the drain hose and then pulling out the drain hose When removing the drain hose be careful of any sharp edges the steel plate may have Sharp edges can cause injuries To install the drain hose insert the drain hose firmly until the connection part contacts the heat insulator and the secure it with the original screws Heat insulator Fig 10 4 16 Drain hose 58 How to fix the drain 1 Insert a hexagon wrench 3 16 in 4 mm in the center head of the cap Fig 10 4 17 2 Firmly insert the drain cap No gap Do not apply lubricating oil refrigerant machine oil when 4 inserting the drain Application causes deterioration and dr
93. n adhesive strength do not use it for refrigerant pipes jueJeBujes Cylinder without siphon Gauge manifold OUTDOOR unit Japul Ao Siphon 1 Phosphor bronze brazing filler tends to react with sulfur and produce a fragile compound water solution which may cause a gas leakage Therefore use any other type of brazing filler at a hot spring resort etc and coat the surface with a paint When performing brazing again at time of servicing use the same type of brazing filler 3 5 2 Flux 1 44 Reason why flux is necessary By removing the oxide film and any foreign matter on the metal surface it assists the flow of brazing filler 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 2 Characteristics required for flux Activated temperature of flux coincides with the brazing temperature Due to a wide effective temperature range flux is hard to carbonize It is easy to remove slag after brazing The corrosive action to the treated metal and brazing filler is minimum It excels in coating performance and is harm less to the human body As the flux works in a complicated manner as described above it is necessary to select an adequate type of flux according to the type and shape of treated metal type of brazing filler and b
94. n manual _ 50 FILE SVM 13071 10 2 3 Installation Servicing Tools Changes in the product and components In the case of an air conditioner using R410A in order to prevent any other refrigerant from being charged accidentally the service port diameter of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 20 threads per inch In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed for copper pipes with nominal dimensions 1 2 and 5 8 New tools for R410A New tools for R410A Applicable to R22 model Changes As pressure is high it is impossible to measure by means of Gauge manifold x conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed In order to increase pressure resisting strength hose materials Charge hose and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur Electronic balance for refrigerant charging The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 Torque wrench nominal diam 1 2
95. ndication a BRW BROWN 3 9 YEL YELLOW g BLK BLACK RED RED BLU BLUE WHI YEL Ware Main PC Board GRN amp YEL WP 020 GREEN amp YELLOW CN11 BLK FILE NO SVM 13071 5 2 RAS 12EKCV UL RAS 12EACV UL TS SUCTION PIPE TEMP SENSOR DISCHARGE PIPE TEMP SENSOR TE CONDENSER PIPE TEMP SENSOR PRESSURE SW COLOR IDENTIFICATION a I BLK BLACK WHI WHITE Ly BLU BLUE BRW BROWN POWER RED RED ORN ORANGE SUPPLY GRY GRAY YELYELLOW 208 230 1 60 PNK PINK PUR PURPLE I I I I I Heat Indoor terminal block 4125 Exchanger POWER SUPPLY From outdoor Unit SHEET METAL 1 X lt m 2 di 9 CNO CN51 ag Gu DC Motor n Fan Motor Heat Exchanger Sensor CN62 TC BLU Thermo Sensor CN61 TA WH rs TT 2 5 gt ms 9 a Color indication lt amp BRW BROWN D YEL YELLOW 159 ix BLK BLACK a amp REDRED BLU BLUE 9 o WHIWHITE A GRN amp YEL NH GREEN amp YELLOW Main Board MCC 5045 CN11 BLK _ 19 FILE NO SVM 13071 6 SPECIFICATIONS OF ELECTRICAL PARTS 6 1 Indoor Unit 1 Fan motor RAS 09EKCV UL AFN 220 20 4D AC240V 20W for indoor Ras 12EKCV UL ICF 340U30 2 DC 340
96. ndoor heat exchanger rises in the range from 43 F 6 C to under 45 F 7 C the compressor speed is kept Q zone 3 When temperature of the indoor heat exchanger rises to 45 F 7 C or higher the capacity control operation returns to the usual control in cooling operation R zone FILE NO SVM 13071 Item Operation flow and applicable data etc Description 7 Louver control This function controls the air direction of the indoor unit 1 Louver The position is automatically controlled initial setting of Cooling position storage position Louver Directs downward 35 3 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 memory position The angle of the louver is indicated as the louver closes fully is 0 1 Louver position in cooling operation lt Initial setting of Cooling storage position Louver Directs downward 35 39 2 Air direction adjustment louver position can be arbitrarily set up by pressing FIX button Horizontal Inclined Blowing Inclined Horizontal blowing blowing downward blowing blowing Ja 24 V a 24 3 Swing e Swing operation is performed in width 35 with the stop position as e Swing the center When pressing If the stop position exceeds eith
97. ndoor unit NOTE Use stranded wire only Wire type minimum AWG14 Fig 10 4 8 56 FILE SVM 13071 10 4 3 How to connect remote controller for wire operation gt Optional 7 Indoor unit I i Control wire Remote controller Fig 10 4 9 lt For indoor unit gt 1 Open the air inlet grille upward 2 Remove the screws securing the front panel 3 Slightly open the lower part of the front panel then pull the upper part of the front toward you to remove it from the rear plate as shown in figure 1 4 After removing the front panel remove the control board assembly and open the cover as shown in figures 2 and 3 5 Arrange the control wire as specified and shown in figure 4 6 Securely connect the control wire to the terminal of the control board as shown in figure 5 tighten firmly but not over 0 12 N m 0 01 7 Route the wire along the bottom of the control board and through the opening of the casing Reassemble the control board assembly 8 Route the wire along with the power supply and connecting cable as shown on figure 6 9 Reassemble the indoor unit by reversing processes 1 to 3 Air inlet grille Front panel Control board 70 mm Notch to route the remote wire through Wire size 28 22AWG or 0 08 0 32 mm Outer diameter not over 4 7 mm control wire length 30
98. ndoor unit beep and operate YES Point remote to digital camera can see infrared at sending LED on carmera monitor when push 0 button Replace main P C Board Reciver P C board is defective Remote controller is defective Keep indoor unit Avoid direct away from Replace reciver Replace Normal sunlight fluorescent light P C board batteries operation Replace remote controller 81 FILE NO SVM 13071 11 5 2 Wiring Failure Interconnecting and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between D and S 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 S5277G or equivalent S5277G Diode with rated voltage of 400V White 2 or more is acceptable Terminal block Tester Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 5 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes aft
99. ndoor unit when the air conditioner operates with some limitation 1 2 Some check code will flash display of the indoor unit and stop operation of the air conditioner 3 4 The check codes can be confirmed on the remote controller for servicing Table 11 3 1 Block display OPERATION Green Flashing display 1 Hz Description for self diagnosis e When turn ON power supply e Power supply ON after failure or OFF e This flashing display is not air conditioner failure OPERATION Green Flashing display 5 Hz OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for indoor P C board Protective circuit operation for connecting cable and serial signal system OPERATION Green FILTER Orange Flashing display 5 Hz Protective circuit operation for outdoor board OPERATION Green TIMER Yellow FILTER Orange Flashing display 5 Hz Protective circuit operation for others including compressor When item B and C or item B and apart of item E occur concurrently priority is given to the block of item B 68 FILE SVM 13071 11 4 Self Diagnosis by Remote Controller Check Code 1 Ifthe lamps are indicated as shown B to E in Table 11 3 1 execute the self diagnosis by the remote controller When the remote controller is set to the service mode the indoor controller diagnoses the operation condition and indicates the informat
100. ng are lengthened The used refrigerating oil is changed and mixing of oil may cause a trouble such as generation of sludge clogging of capillary etc Accordingly the tools to be used are classified into the following three types 1 Tools exclusive for R410A Those which cannot be used for conventional refrigerant R22 2 Tools exclusive for RA10A 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 RA10A and their interchangeability Tools exclusive for R410A The following tools for R410A are required Tools whose specifications are changed for 410 and their interchangeability R410A Conventional air air conditioner installation conditioner installation Used tool Existence of Whether conven Whether new equipment new equipment tional equipment can be used with for RA10A can be used conventional refrigerant Flare tool Pipe flaring Note 1 O Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Note 1 Note 1 Torque wrench i x For 21 2 12 7mm Connection of flare nut Gauge manifold Evacuating refrigerant charge run check etc Charge hose Vacuum pump adapter Vacuum evacuating Electronic balance for refrigerant charging Refrigerant charge Refrigerant cylinder Refrigerant charge Yes Leakage detector Gas
101. ning 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 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 FILE SVM 13071 12 Self Cleaning Self Cleaning diagram function Operation display ON OFF OFF ON ON rpm is depend on presetting 500RPM FCU fan OFF FCU louver OPEN OPEN 12 7 CLOSE Ti displ ON or OFF ON ON or OFF depend presetting of timer function depend on presetting of timer function ON or OFF OFF Compressor depend on presetting per room temperature CDU fan ON or OFF OFF depend on presetting per room temperature gt Operation time Cool mode or dry mode Self Cleaning mode operation more than 10 mins operate 30 mins Automatically turn off Turn off by remote controller or timer off function 13 Self Cleaning How to cancel Self Cleaning function function release To cancel the Self Cleaning function proceed as follows Press RESET button one tim
102. nit controller The outdoor unit controller receives operation command from the indoor unit and controls the outdoor fan motor Pulse Modulating Valve PMV and revolution speed of the compressor motor The outdoor unit controller controls speed of compressor motor be controlling output voltage of the inverter and switching timing of supply power current transfer timing so that compressor motor operates according to the operation command And then the outdoor unit controller transfers the operating status back to the indoor unit controller As the compressor adopts four pole brushless DC motor the frequency of the supply power from inverter to compressor is two times cycles of the actual number of revolution 1 Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and assumes the following functions Judgment of suction air 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 from the outdoor unit and judgment display of e
103. nly No temperature indication 3 Press Select AUTO LOW LOW MED sa MED ast HIGH _ 44 DRY OPERATION COOLING ONLY FILE NO SVM 13071 For dehumidification a moderate cooling performance is controlled automatically 1 Press MODE Select Dry 9 2 Press 8 MODE Set the desired temperature Hi POWER OPERATION To automatically control room temperature and airflow for faster cooling operation except in DRY and FAN ONLY mode Press HI POWER Start and stop the operation ECO OPERATION To automatically control room to save energy except in DRY and FAN ONLY mode Press ECO Start and stop the operation Note set temperature will increase automatically 1 8 F 1 C hour for 2 hours maximum 3 6 F 2 C increase TEMPORARY OPERATION In case of the misplaced or discharged remote control e Pressing the RESET button the unit can start or stop without using the remote control e Operation mode is set on AUTOMATIC operation preset temperature is 75 F 24 C and fan operation is automatic speed TIMER OPERATION Setting the ON Timer x Set the desired ON timer 1 Press Z Setting the OFF Timer OFF Set the desired OFF timer Press A 2 Press Set the timer Press Set the timer 3 Press Cancel the timer Press Daily timer allows the user to set both the amp OFF time
104. of two systems operating nearby follow the as curtain that may block the signal coming form the instructions below to set the remote control to operate remote control with one indoor unit at a time Do not install the remote control place exposed to direct sunlight or close to a heating source such Remote control B Setup as a stove 1 Press RESET button on the indoor unit to turn the Keep the remote control at least 3 3 ft 1 m apart from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or air conditioner ON 2 Point the remote control at the indoor unit noise interference 3 Push and hold button on the Remote Control The location of the remote control should be with the tip of a pencil 00 will be shown on the determined as shown below display 4 Press while pushing B will show on the display and 00 will disappear and the air conditioner will turn OFF B is now memorized Top view Side view 4 Indoor unit Note 8 E 1 Repeat above step to reset Remote Control back to A s 4 f 2 Remote Control does not display Reception Remote range CO 3 Detault setting of Remote Controller from factory is A range control Remote control Fig 10 4 27 B Display AB anm nn 00 Display hdi gem Fig 10 4 28 61 FILE SVM 13071 5 IMPORTANT POINTS FOR PIPING WO
105. ol 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 103 FILE NO SVM 13071 Remarks CN603 CN601 CN600 CN700 CN602 CN300 CN701 CN600 and CN603 are connectors with locking mechanisms as such to disconnect them they must be pressed in the direction of the arrow while pulling them out board base P C board FILE NO SVM 13071 Part name Procedure Remarks Side cabinet 1 Side cabinet right 1 Perform step 1 in and all the steps in 2 Remove the fixing screw used to secure the side cabinet and heat exchanger 3 Remove the fixing screw screw 2 pcs used to secure the plate conduit and side cabinet 4 Remove the fixing screw screw 3 pcs used to secure the side cabinet to the bottom plate and valve fixing panel 2 Side cabinet left 1 Perform step 1 2 Remove the fixing screw used to secure the side cabinet left onto the heat exchanger 3 Remove the fixing screw SCREW 2 pcs used for securing the side cabinet to the bottom plate and heat exchanger The back body section hooked onto the bottom plate hear Detail A Detail B Detail C Fan motor 1 Perform work of item 1 of O 2 2 Remove the flange nut fixing the fan
106. one under condition of inclining downward blowing 1 When setting the fan speed to L L M M or H on the remote controller the operation is performed with the constant speed shown in Fig 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table 1 according to the setup tempera ture room temperature and heat exchanger temperature Air flow rate Fan speed RAS O9EKCV UL RAS 12EKCV UL level DRY Fan speed Air flow rate Fan speed rpm cfm 3 rpm 30 cfm m h Operation flow and applicable data etc 3 Outdoor fan motor control The speed of the outdoor unit motor is controlled according to speed of compressor motor rps and outdoor temperature To Air conditioner ON Remote controller Indoor unit controller 1 Outdoor unit operation command Outdoor fan control 2 Fan speed gt 400 when the motor stopped NO YES OFF status of fan motor continues Fan motor ON 3 Fan lock NO YES Air conditioner Alarm OFF display 4 Motor operates as shown in the table below In cooling operation 13 8 31 7 Compressor speed rps gt 100 38 C To gt 82 F 28 C To gt 59 15 C To gt 42 F 5 5 C To gt 32 F 0 C To lt 32 F 0 C During To gt 100 F 38 C ECO mode To gt 100 F 38 C
107. ontroller check code 02 Outdoor block 1A Outdoor fan drive system error 2 Cause The following causes are considered when the outdoor fan motor does not normally rotate 1 Mechanical lock of the outdoor fan motor 2 Winding failure of the outdoor fan motor 3 Position detect circuit failure inside of the outdoor fan motor 4 Motor drive circuit failure of the outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad Turn OFF the breaker Disconnect two connectors CN300 of the outdoor fan motor from the outdoor P C board Does the fan rotate without trouble when rotating it with hands If the resistance value between CN300 Red lead White lead White lead Black lead Black lead Red lead of the connector CN300 Motor winding is 17 to 25Q it is normal Fan motor is normal Fan motor error Outdoor P C board error NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor 91 FILE NO SVM 13071 12 HOWTO REPLACE THE MAIN PARTS WARNING Since high voltages pass through the electrical parts turn off the power without fail before proceeding with the repairs Electric shocks may occur if the power plug is not disconnected After t
108. opriate mounting screws p ene mm Oec x NOTE Z Secure four corners and lower parts of the mounting ki plate with 4 to 6 mounting screws to install it nomm 3 5 32 in 80 mm Fig 10 4 6 10 4 2 Wiring Connection How to connect the connecting cable Open the air inlet grille upward 2 Remove the screws securing the front panel 3 Slightly open the lower part of the front panel then pull the upper part of the front panel toward you to remove it from the rear plate 4 Insert the conduit pipe according to the local codes aoe Fixing screw cable Conduit mount into the pipe hole on the wall 5 Remove the conduit mount by loosening the fixing Fige 104er screw Fig 10 4 7 6 Fix conduit pipe to conduit mount with the lock nut Cord clamp 7 Pull out the connecting wire through the conduit pipe and process the wire Fig 10 4 6 8 Take out the wire to the front and fix it to the terminal block Be careful not to mis wire Fig 10 4 8 9 Firmly tighten the terminal screws to prevent them from loosening Tightening torque 0 9 Ibf ft 1 2 N m After tightening pull the wires lightly to confirm that Screw Connecting cable they of not move Front panel 10 Secure the connecting wire with the cord clamp 11 Fix the conduit mount back to the body by fixing a screw 12 Fix the front panel terminal cover and air inlet grille to the i
109. or DA111A1F 20F1 5 2 Fusible plug TO Outdoor heat exchanger Split 5 j lu 2 80 Temp measurement T2 VOTH C VE Propeller fan Refrigerant amount 2 43 Ibs 1 10 OUTDOOR UNIT NOTE ub Gas leak check position gt Refrigerant flow Cooling NOTE The maximum pipe length of this air conditioner is 66ft 15 m When the pipe length exceeds 50ft 15m the additional charging of refrigerant 0 22 oz ft 20g m for the part of pipe exceeded 15m is required Max 0 22 Ibs 1009 22 FILE NO SVM 13071 7 2 Operation Data lt Cooling gt Tempeature Model name Standard Heat exchanger Indoor Outdoor Compressor RAS pressure pipe temp fan mode fan mode revolution Indoor Outdoor Psia MPa 1 2 rps 7 7 13710160 541057 9910102 eve 98 75 ogEKCV UL x i E High High 26 7 19 4 85 23 9 0 910 1 1 121014 371039 1161014 2 104 to 107 oe 921055 Ore High High 77 0 810 1 0 111013 421044 NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchaner path U bent Thermistor themometer 2 Connecting piping condition 16 ft 5m _ 23 8 1 Indoor Unit Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver and Indication Clock Frequency Oscillator Circuit 1 CONTROL BLOCK DIAGRAM
110. placed 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 Fig 11 2 Do NOT lay the circuit board assembly flat Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC265 to 360V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc lt Discharging method gt 1 Remove the inverter cover plating by opening four mounting claws 2 As shown below connect the discharge resistance approx 100 40W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 5004 400 on P C board and then perform discharging Discharging position Discharging period Plug of 10 seconds or more Soldering iron
111. r 4 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 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 Compressor is high current All OFF Flashes after Check installation conditions such as J though operation Hz is error is detected packed valve opening refrigerant 74 FILE NO SVM 13071 11 5 Judgement of Trouble by Every Symptom 11 5 1 Indoor unit Including remote controller 1 Indoor unit is not operated RAS 09EKCV UL Turn off power supply once and 5 second later turn it on again NO Is OPERATION lamp blinking YES Is it possible to turn on Indoor unit by pressing 05 button on remote control YES Is fuse F01 of indoor control board blown Is voltage DC 12V or 5V indicated on YES indoor control board normal Parts DB01 C27 TO1 and 02 are defective Does Connection between main PC Board and display PCB are connect properly Does transmission mark on remote control flash normally and is its signal transmitted properly NO YES is defective Check item Conceivable principle
112. r 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 03 cfm 0 05 m Hr or 2 9 Psi 0 02 MPa 0 2 kgf cm by means of the reducing valve 6 After performing the steps above keep the Nitrogen gas flowing until the pipe cools down to a certain extent temperature at which pipes are touchable with hands 7 Remove the flux completely after brazing Flow meter Stop valve Nitrogen gas cylinder From Nitrogen cylinder gt oo PF P N Nitrogen gas Rubber plug Fig 3 5 1 Prevention of oxidation during brazing 15 4 1 Indoor Unit Knockout for leftward piping Grille Inlet Front panel 2 15 32 63 9 32 7 7 8 48 4 CONSTRUCTION VIEWS 31 1 8 790 8 1 16 205 FILE NO SVM 13071 Unit Inch mm Knockout for rightward piping Air filter Air inlet 5 N N al
113. rating precautions tion of the copper foil pattern or this P C board 1 When removing the front panel or the P C 2 The P C board consists of the following 2 parts board be sure to shut off the power supply a Main P C board part breaker DC power supply circuit 5 V 12 V 2 When removing the P C board hold the edge Indoor fan motor control circuit CPU and of the P C board and do not apply force to the peripheral circuits buzzer and Driving circuit parts of louver 3 When connecting or disconnecting the connec b Indication unit of infrared ray receiving tors on the P C board hold the whole housing Infrared ray receiving circuit LED Do not pull at the lead wire 11 8 2 How to shorten time for start the compressor 1 Turn on remote Setting requirment operation 2 VP 3 Push off remote 4 Press SET button while pressing CHECK button AB OA CHK AIEEE with a tip of a pencil 9 BBs Onn 5 Then press 0 button to transmit the signal to the mE indoor unit ONE TOUCH MODE COMFORT SLEEP QUIET SWING FIX Hi POWER ECO me D OFF gt CIF CHK FILTER CLOCK TOSHIBA Carrier This setting helps to shortern a compressor waiting period when operate cool or dry mode A compressor suddenly starts one order of Remote controller is received 86 11 8 2 P C Board Layout RAS 09EKCV UL ES
114. razing method etc 3 Types of flux Noncorrosive flux Generally it is compound of borax and boric acid It is effective in case where the brazing tem perature is higher than 1472 F 800 C Activated flux Most of fluxes generally used for silver brazing are this type It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride potassium chloride and sodium fluoride to the borax boric acid compound 4 Piping materials for brazing and used brazing filler flux Piping material Used brazing filler Used flux Copper Copper Phosphor copper Do not use Copper Iron Silver Paste flux Iron Iron Silver Vapor flux 1 Do not enter flux into the refrigeration cycle 2 When chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing FILE NO SVM 13071 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 Neve
115. rection of the sensor Sensor lead Sensor lead Detail B TD sensor Detail A TD sensor Discharge pipe temperature sensor Sensor lead Attachment With its leads pointed upward install the sensor onto the vertical straight pipe part of the discharge pipe TO sensor Outside air temperature sensor Attachment Insert the outdoor air temperature sensor into the holder and install the holder onto the heat exchanger 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 107 FILE SVM 13071 13 EXPLODED VIEWS AND PARTS LIST 13 1 Indoor Unit E Part Location Location Description Description 43150326 TEMPERATURE SENSOR 43T6V316 PC BOARD ASSY WRS LED 43 60401 TERMINAL BLOCK 3P 43T6V419 PC BOARD RAS O9EKCV UL 43150325 TEMPERATURE SENSOR 43T6V438 PC BOARD RAS 12EKCV UL 43T62003 CORD CLAMP 108 FILE NO SVM 13071 13 2 Indoor Unit 206 219 216 224 E
116. 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 Furthermore it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants 1 Copper Pipes It is necessary to use seamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg 10 m Do not use copper pipes having a collapsed deformed or discolored portion especially on the interior surface Otherwise the expansion valve or capillary tube may become blocked with contaminants As an air conditioner using R410A incurs pres sure higher than when using R22 it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in Table 3 2 1 Never use copper pipes thinner than 0 0315 in 0 8 mm even wh
117. roller 2 digits alphanumeric will be indicated on the display All indicators on the indoor unit will flash 5 times per 1 sec Push CLR button After service finish for clear service code in memory e 7P is indicated on the display of the remote controller Push 5 button to release the service mode The display of the remote controller returns to as it was before service mode was engaged Fig 11 4 1 69 FILE NO SVM 13071 11 4 2 Caution at Servicing 1 After using the service mode of remote controller finished press 0 button to reset the remote controller to normal function 2 After finished the diagnosis by the remote controller turn OFF power supply and turn its ON again to reset the air conditioner to normal operation However the check codes are not deleted from memory of the microcomputer 3 After servicing finished press CLR button of remote controller under service mode status to send code 7F to the indoor unit The check code stored in memory is cleared Table 11 4 1 Llock distinction distinction Operation of diagnosis function Air i i Action and Judgment Check Block Cause of operation conditioner Display flashing code Status error Indoor P C TA sensor The room Operation Flashes when Check the sensor TA and connection board temperature sensor is continues error is detected 2 In case of the sensor and its short Circuit or disconnection connection
118. rror 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control Operation control of outdoor fan motor PM V control 26 Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT module Compressor stop function Compressor and outdoor fan stop function when serial 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 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 Com pressor revolution indoor heat exchanger tem perature the outdoor unit controller monitors the input current to the inverter and performs
119. rs and will be activated a daily basis Setting Daily Timer 1 Press S Set the ON timer Press o 2 Press OFF Set the OFF timer Q J b A Press button during the f or B 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 45 FILE NO SVM 13071 9 PRESET OPERATION Set your preferred operation for future use The setting will be memorized by the unit for future operation except air flow direction 1 Select your preferred operation 2 Press and hold PRESET for 3 seconds to memorize the setting The mark displays 3 Press PRESET Operate the preset operation 10 AUTO RESTART OPERATION To automatically restart the conditioner after the power failure Power of the unit must be on Setting 1 Press and hold the RESET button on the indoor unit for 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 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 11 QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press QUIET Start and
120. rting 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 outdoor unit Instantaneous power stop start to operate failure when the return Some protector signal from the hardware of the outdoor unit 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 73 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 13071 Block distinction Operation of diagnosis function Check Check A Display Action and Judgment Block Cause of operation conditioner code code sta
121. shooting Judgment by Flashing LED of Indoor Unit How to Diagnose Trouble in Outdoor Unit Self Diagnosis by Remote Controller How to Check Simply the Main Parts Judgment of Trouble by Every Symptom How to Simply Judge Whether Outdoor Fan Motor is Good or Bad Precautions when handling the new inverter 3DV Inverter Ay CAUTION HIGH 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 3DV inverter will be incorporated starting with this unit 3DV 3 shunt Discrete Vector control The control circuitry has an uninsulated construction Compressor 1 IGBT x 6 i 4 s 1 R E Fan motor Amplifier FET 6 1 Amplifier Shared potential Fig 11 1 65 FILE SVM 13071 CAUTION A high voltage equivalent to the supply voltage is also energized to ground through the sensors PMV and other low voltage circuits The sensor leads and other wires are covered with insulated tubes for protection Nevertheless care must be taken to ensure that these wires are not pinched Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power At times such as when the circuit board is to be re
122. t 71 Pulse Modulating Compressor LI Propeller fan Refrigerant amount 1 77165 OUTDOOR UNIT NOTE W Gas leak check position Refrigerant flow Cooling NOTE The maximum pipe length of this air conditioner is 66ft 20 When the pipe length exceeds 50ft 15m the additional charging of refrigerant 0 22 oz ft 20g m for the part of pipe exceeded 50ft 15m is required Max 0 22 Ibs 1009 21 FILE NO SVM 13071 1 RAS 12EKCV UL RAS 12EACV UL INDOOR UNIT T1 Temp measurement Indoor heat exchanger 215 lt ee SG 102 Max 66ft 20m lt Min 6 6ft 2m P Pressure measurement Deoxidized copper pipe 272 2 5 Chargeless 50 ft 15m Gauge attaching port Outer dia 1 4 in 6 35mm S 5 2 Charge 0 22oz ft Vacuum pump connecting port Thickness 1 32 in 0 8mm J Sg S 51 to 66 ft i 5 20g m 16 to 20m Deoxidized copper pipe Sectional shape lt Outer dia 3 8 in 9 52mm Thickness 1 32 0 8mm me ae re we UT Le EDI LC a s Muffler Strainer 4 way valve Muffler Pulse Modulating valve at liquid side High Pressure switch I TD Compress
123. tably After passing the connecting pipe through the pipe hole connect the connecting pipes to the refrigerant line and wrap facing tape around them CAUTION B Bind the refrigerant lines two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the refrigerant lines two only with facing tape Indoor unit Refrigerant lines Sx Connecting cable Installation plate e Carefully arrange pipes such that none of them stick out the rear plate of the indoor unit Carefully connect the refrigerant lines and connecting pipes to one another and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Check for gas leaks before insulating A 59 10 4 5 Indoor Unit Fixing 1 Pass the pipe through the hole in the wall and hook the indoor unit on the upper hook of the installation plate Swing the indoor unit to right and left to confirm that it is firmly hooked up on the mounting plate While pressing the indoor unit onto the wall hook in at the lower section of the mounting plate Pull the indoor unit toward you to confirm that it is firmly hooked up on the mounting plate Press unhook Fig 10 4 22 To detach the indoor unit from the mounting plate pull the indoor unit toward you while pushing its bottom up as shown in the fi
124. ted 147 Psi 0 1 Mpa or 29 9 inHg 76 mmHg place the handle Low in the fully closed position and turn off the vacuum pump s power switch 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 Open fully both packed valves at liquid and gas sides 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 Set the refrigerant cylinder to the electronic balance connect the connecting hose to the cylinder and the connecting port of the electronic balance and charge liquid refrigerant For refrigerant charging see the figure below 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 Refrigerant cylinder ia siphon Open close valve for charging Electron
125. tents of 9 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor and pulse Modulating valve according to the operation signal sent from the indoor unit Operation ON Setup of remote controller Y Indoor unit control sss Sending of operation command signal Indoor fan motor control Louver control Operation Hz Control Requierment Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control Outdoor unit control Pulse Modulating valve control 4 way valve control In cooling operation ON 3 AUTO operation One of 2 operations Cooling or Fan only is selected according to difference between the preset temperature and the room temperature at which the automatic operation has started as shown in follow figure The Fan only operation continues unit the room temperature reaches a level at which another mode is selected 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode Ta Cooling operation Monitoring Fan DRY operation 1 Detects the room temperature Ta when DRY operation is performed according to the difference the DRY operation started between room temperature and the setup temperature as 2 Starts operation under conditions in the shown below left figure according to the temperature diff
126. th is buried refrigerant may migrate to the cooter buried section during extended periods of system shutdown This causes refrigerant slugging and could possibly damage the compressor at start up FILE SVM 13071 DANGER FOR USE BY QUALIFIED PERSONS ONLY TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK MAKE SURE ALL POWER SWITCHES ARE OFF FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK CONNECT THE CONNECTING CABLE CORRECTLY IF THE CONNECTING CABLE IS CONNECTED WRONGLY ELECTRIC PARTS MAY BE DAMAGED 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 OVERHEATION 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 LEAK DURING INSTALLATION WORK IMMEDIATELY ALLOW FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOM
127. ting NOTE Do not disconnect the connector while the fan motor is rotating Use a thin test rod Indoor fan starts rotating when power supply is turned on Fus 00418 CN31 Check output DC voltage of fan motor on P C board 6 Blue Yellow 5 Yellow Measure voltage between 3 GND BLACK 4 White and 5 V line YELLOW of motor connector CN31 3 Black while indoor fan motor is rotating 2 1 Red DC 1 0V or more Under DC 1 0V Motor is defective P C board is defective Replace P C board Replace motor 80 FILE NO SVM 13071 5 Troubleshooting for remote controller lt Primary check gt Check that A or B selected on the main unit is matched with A or B selected on the remote controller The unit does not beep at all Push the 5 button Operation lamp on indoor unit is not indicated Is transmission NO mark indicated YES Reset by take off battery the push cb button till LCD indication disclear put battery again Is receiver on indoor unit exposed to direct sunlight Does indoor unit operate when moving remote controller near receiver or indoor unit YES Batteries are exhausted Is there any fluorescent light nearly Push the button Does A C operate by push RESET button of indoor unit Is transmission NO mark indicated YES Does i
128. tly the heat exchanger rightward 95 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 Rib on the right side of the end plate Part name Evaporator Heat exchanger Procedures 7 Unscrew one screw which fix Electrical Control Box and the casing Move Electrical Control Box until can see one screw that fix Motor band and unscrew it then remove FIX EVA DN Tighten the screw of Motor band assembly Electrical Control Box then tighten screw to complete reassembly FILE NO SVM 13071 Remarks Bearing base 1 Follow to the procedure in the item 2 Remove the two screws used to secure the bearing base 3 Remove the bearing base lt Caution at assembling gt If the bearing is out from the housing push it into the specified position and then incorporate it in the main body 96 Two screws Bearing Bearing base Fan motor Procedures 1 Follow to the procedure till item 2 Loosen the set screw of the cross flow fan 3 Remove two fixing screws of the motor cover and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor band 5 Pull the fan motor outward Reference line Fan motor _ 97 Reference condition of Fan Motor s assembly FILE NO SVM 13071 Remarks Set screw Two screw T
129. tus 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 4 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 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 4 times amount and power supply rate 10 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 Observe any possibility cause which may affect high current of compressor If 1 2 and are normal replace compresso
130. used to highlight suggestions which will result in enhanced installation reliability or operation Before installation please read these precautions for safety carefully Be sure to follow the precautions provided here to avoid safety risks The symbols and their meanings are shown below WARNING It indicates that incorrect use of this unit may cause severe injury or death CAUTION FAILURE TO FOLLOW THIS CAUTION may result in equipment damage or improper operation and personal injury CAUTION New refrigerant air conditioner installation THIS AIR CONDITIONER USES THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY THE OZONE LAYER R410A refrigerant is affected by inpurities such as water and oils because the pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 ALSO NEW OILS ARE USED WITH R410A THUS ALWAYS USE NEW REFRIGERANT PIPING AND DO NOT ALLOW MOISTURE OR DUST TO ENTER THE SYSTEM To avoid mixing refrigerant and refrigerant machine oil the sizes of charging port on the main unit is different than those used on R22 machines and different tools will be required EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Do not bury more than 36 in 914 mm of refrigerant pipe in the ground If any section of pipe is buried there must 152 mm vertical rise to the valve connections on the outdoor units If more than the recommended leng
131. wo screws on motor band Motor cover FILE NO SVM 13071 Part name Procedures Remarks Cross flow fan lt Caution at reassembling gt Fan motor 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 98 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 Remove the 2 fixing screws 3 Remove the electrical part base 99 FILE NO SVM 13071 Remarks Replace ter
132. y of the remote controller and the unit operates as follows 1 Automatic operation e The indoor unit operates in according to the current operation 2 Cooling operation e The preset temperature drops 1 2 F The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap 3 The Hi POWER mode can not be set in Dry operation 41 FILE NO SVM 13071 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

Download Pdf Manuals

Related Search

Related Contents

12 FRANÇAIS 3. Contrôle de vol  BETRIEBSANWEISUNG de OPERATING INSTRUCTION en MODE  Samsung HT-3550 User Manual  Med Jade Bed JW-9000  Dans le Val-de-Marne Les soins bucco  ColdTech Commercial CUR CUF CPT (ENG)  Quick GUIDE WEB EDITION  GE PSB9240SFSS Use and Care Manual  MAX - T 100 - Multisound  Palm 700w User Guide  

Copyright © All rights reserved. Failed to retrieve file