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AIR CONDITIONER - AHI

1. determined as shown below ie a 35 TEMP I S Hook Fer Side view Top view c 2 57 Indoor unit 9 NL Td cx kacie NE D Reception 7 2 inn Remote Installation mm control range LJ Remote control Hook Pipehole plate Pipe hole Thread Indoor unit Weight 6 Mounting screw Fig 8 4 1 Fig 8 4 3 25 FILE NO SVM 08028 When the installation plate is directly mounted on 8 4 3 Electrical work mower 1 The supply voltage must be the same as the rated 1 Securely fit the installation plate onto the wall by voltage of the air conditioner screwing it in the upper and lower parts to hook up 2 Prepare the power source for exclusive use with the the indoor unit air conditioner 2 To mount the installation plate on a concrete wall i ili N with anchor bolts utilize the anchor bolt holes as CAUTION illustrated in the above figure 3 Install the installation plate horizontally in the wall e This appliance can be connected to the mains in either of the following two ways 1 Connection to fixed wiring CAUTION A switch or circuit breaker which disconnects When installing the installation plate with a all poles and has a contact separation of at mounting screw do not use the anchor bolt hole least 3 mm must be incorporate in the fixed Otherwise the unit may fall down an
2. Correct the wire or replace the defective cords Outdoor fan motor is defective Capacitor for outdoor fan motor is defective 43 Replace the P C board Shut off the power supply once Turn the power supply Does the fan stop in no operating status YES Start the operation with low fan setting in cool operation Does the fan rotate YES Change the setting of cooling to hight fan Does the fan speed become higher YES Normal FILE NO SVM 08028 Control P C board is defective Replace the P C board Does connecting terminal connecting cable or power supply cord completely Does not found the short wire about connecting cable and power cord Does AC 120V or higher voltage apply to between red and black lead of fan motor Shut off the power supply Repair the Thermal fuse operated Does the cross flow pa due to prevent bearing of ae fan rotate normally the fan temperature rising cause YES of incompleted connecting Turn on the power supply Motor control circuit failure IC30 IC03 Q08 or 12V power circuit failire Replace the P C board Operation stops Is the rotation signal DC 12V 0V output between 2 gray lead wire and 3 brown lead wire of the motor connector CN11 when rotating Replace the fan motor the cross flow fan b
3. Die Pipe Fig 8 5 3 Flare at outdoor unit side Outer dia A of copper pipe Rigid Imperial Fig 8 5 4 6 35 0 5 to 1 0 1 0 to 1 5 9 52 0 5 to 1 0 1 0 to 1 5 Tightening connection gt Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers Then 6 Mark line tighten the nut with a spanner and torque wrench as shown in the figure a CAUTION Fig 8 5 5 e Do not apply excess torque 9 e Otherwise the nut may crack depending on the conditions Half union QD Fare nut Externally Internally threaded side Pf threaded side Use a wrench to secure Use a torque wrench to tighten Fig 8 5 6 CAUTION e KEEP IMPORTANT 4 POINTS FOR PIPING WORK 1 Take away dust and moisture Inside of the connecting pipes 2 Tight connection between pipes and unit 8 Evacuate the air in the connecting pipes using VACUUM PUMP N 4 Check gas leak connected points E 24 FILE NO SVM 08028 8 5 3 Evacuating lt Packed valve handling precautions gt After the piping has been connected to the indoor unit Open the valve stem all the way out but do not try you can perform the air purge together at once to open it beyond the stopper Securely tighten the valve stem cap with torque in AIR PURGE the following table Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump Do not use th
4. Is AC 220 240V supplied between NO terminal block 1 2 YES Is cable connection between indoor NO and outdoor units correct YES Check items as following procedure in 9 5 4 9 5 5 9 5 6 FILE NO SVM 08028 See Power can not be turned on See Power can not be turned on Relays 01 02 or IC30 is failure Correct cabling between indoor and outdoor units 44 Replace the P C board 9 5 4 Only compressor does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds YES NO Does the OPERATION lamp blink Does the power turn on by pushing the START STOP button of the remote control NO YES Is the voltage across the indoor terminal NO D 3 AC 220 240V YES Is cable connection between indoor NO and outdoor units correct YES Is the voltage across the outdoor terminal N NO D 220 240V YES NO Are all the cords for compressor normal YES Is the compressor motor winding normal X NO Check the winding resistor YES NO Is the capacitor for compressor normal YES NO Is the overload relay normal YES NO Does the compressor start YES Compressor starts but it stops after a while YES Is the gas quantity normal NO Check the pressure YES Compressor is defective See Power can not be turned on See Power can not be
5. L 1 d SEEN NN rosa SSS NN C J s m TE L e e e e e 242 500 11 _ 280 Pitch 12 5 660 302 Liquid Side Flare 6 35 5 L Gas Side lam he dee E Flare 9 52 Service Port Installation Dimension 4 More Airinlet 500 100 Air inlet A lt 5 lt x 100 or More x Air Outlet 400 2 View 3 WIRING DIAGRAM FILE NO SVM 08028 BRW WHI BLU BLK GRN amp YEL ZA SINGLE PHASE u 1 220 240V 50Hz 5 Heat exchanger 4 W 4 WP 018 Onn Obs R64 Set ae He RYO1 027 YEL F L YEL PEPEN Switching power supply Thermo sensor TA AAA DC 5V Voltage regulator al an GRY 1 JEU LI CN25 CN12 ___ 1003 TM 5 DDA LI WO Tt TO 007 omo AG motor 2 rH 125 144 4 tos Lum a i28 Ora 5 leu ME p izz O6 BLU 6 Fan motor Eg 02 HR m 1251818 878 I EI onos 2
6. If the OPERATION lamp blinks 0 5 sec ON 0 5 sec OFF when the power turning on the checking points described as 1 4 of right column are not necessary to perform Voltage check 1 Between 4 of RYO1 and CN31 AC 220 240V 2 Between and of C27 DC 310 340V 3 Between 5V and 4 Between 12V and GND GND 1 AC power cord is defective e Poor contact of the terminal plate e Miss wiring of the power relay 2 e Capacitor C25 C26 is defective e Line filter L01 is defective e Diode 0801 is defective 3 IC02 is defective 4 TO1 DBO1 R64 C27 detective Make the operation status by pushing once the START STOP button except the status of FAN ONLY ON TIMER Voltage check 1 Voltage of relay coil DC 12V Between pin C of Q02 and GND 2 Between No 1 2 of connecting cable terminal block AC 220 240V 1 Breaking wire of the relay coil defective relay driver 2 Poor contact of relay Start the operation with the system which the time of the restart delay timer is shortened 1 All indicators light for 3 sec 2 Indicators do not indicate normally after approximate 3 sec Defective indicator or poor housing assembly CN12 Make the operation status by pressing once the START STOP button 1 The time of the restart delay timer is shortened 2 Cool operation 3 Air volume AUTO 4 Make the setti
7. plate 8 4 1 Installation place lt Cutting hole gt A place which provides the spaces around the indoor unit as shown in the above diagram When installing the refrigerant pipes from the rear place where there is no obstacle near the air inlet and outlet A place that allows easy installation of the piping to the outdoor unit e A place which allows the front panel to be opened Direct sunlight to the indoor unit s wireless receiver should be avoided e The microprocessor in the indoor unit should not be too close to RF noise sources Fig 8 4 2 For details see the owner s manual Remote control gt 1 After determining the pipe hole position on the mounting plate drill the pipe hole 265 mm at ibi cs dnb wu die add 88 56 3060 ara a slight downward slant to the outdoor side curtain that may block the signal from the indoor unit e Do not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove e Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference e The location of the remote control should be NOTE e When drilling a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate
8. 11 4 Outdoor Unit RAS 09SASX 1 Capacity RAS 07SKSX 1 RAS 07S2AX 1 1 SPECIFICATIONS FILE NO SVM 08028 RAS 09SKSX 1 RAS 09SASX 1 1 Power source 220 240 50 Power consumption Power factor Running Indoor current Outdoor Starting current 13 15 Moisture removal 0 5 1 2 Noise Indoor H M L 40 35 30 43 38 33 Outdoor Name of refrigerant Refrigerant 9 R22 Rated amount 0 58 Refrigerant control Capillary tube Gas side size 9 52 Connection type Flare connection Liquid side size 6 35 Interconnection Connection type Flare connection pipe Maximum length One way 101 Maximum height difference INDOOR UNIT RAS 07SKSX 1 RAS 09SKSX 1 Height 250 Dimensions Width 740 Depth 185 Net weight 8 Evaporator type Finned tube Indoor fan type Cross flow fan High fan 510 Air volume Medium fan 430 Low fan 350 Fan motor output 20 Air filter Honeycomb woven filter with PP frame OUTDOOR UNIT RAS 07S2AX 1 RAS 09SASX 1 Height 530 Dimensions Width 660 Depth 240 Net weight Condenser type Finned tube Outdoor fan type Propeller fan Airflow volume 1580 1620 Fan motor output 20 20 Model
9. ASSY CROSS FLOW 43T09392 HORIZONTAL LOUVER 43139320 MOTOR BAND LEFT 43770313 HOSE DRAIN 43139321 MOTOR BAND RI GHT 43 79301 CAP DRAIN 43121393 FAN MOTOR 43121363 MOTOR STEPPING 43182309 INSTALLATION PLATE 43144424 REFRIGERATION CYCLE ASSY 43769437 WIRELESS REMOTE CONTROL 43747353 PIPE SUCTION RAS 13 43763002 REMOTE CONTROL HOLDER 43747355 PIPE SUCTION U1U2 GD 43762326 TERMINAL COVER 43T11317 PIPE SHIELD 43T60317 CORD MOTOR LOUVER 43119333 HOLDER SENSOR 43T07311 PIPE HOLDER 43149329 PLATE OF EVA SEAL 55 FILE NO SVM 08028 11 3 Outdoor Unit RAS 07S2AX 1 DIL im 844945544654 175 MAS 7 y p NUT 11 CAPILLARY TUBE Location Location Description Description No No 43142335 BASE PLATE ASSEMBLY 43T19335 FAN GUARD 43741365 COMPRESSOR Made in China 43T04304 PARTITION 43149327 CUSHI ON RUBBER 43139326 MOTOR BASE CONNECTION PLATE 43T97001 NUT 43139325 MOTOR BASE 43143407 CONDENSER ASSEMBLY 43719337 PACKED VALVE COVER 43T00448 FIXING PLATE VALVE 43T00481 UPPER CABINET 43146332 VALVE PACKED 6 35 DIA 43796305 BUSHING 43T00347 VALVE PACKED 9 52 DIA 43T62323 TERMINAL COVER 43147331 BONNET 6 35 DIA 43T19336 FIN GUARD 43147332 BONNET 9 52 DIA 43T54314 RELAY OVERLOAD 43147007 CAPILLARY TUBE 1 2 DIA 43 61310 ELECTRIC PARTS BASE 43T00486 FRONT CABI NET 43755338 CAPACITOR PLASTIC FILM 4312140
10. Avoid direct from thyristor Replace Replace the Normal Replace remote sunlight fluorescent light P C board batteries control 45 FILE NO SVM 08028 9 6 1 How to check the P C board 2 Inspection procedres 1 Operating precautions 1 When a P C board is judged to be defective 1 When removing the front panel or the P C board check for disconnection burning or discolora be sure to shut off the power supply tion of the copper foil pattern or this P C board 2 When removing the P C board hold the edge of 2 The P C board consists of the following 2 parts the P C board and do not apply force to the a Main P C board part power relay indoor fan motor drive circuit and parts 3 When connecting or disconnecting the connec control circuit C P U and peripheral circuits tors on the P C board hold the Whole housing buzzer drive circuit and buzzer b Infrared rays receive and indication parts Do not pull at the lead wire 4 Infrared rays receiver unit and LED 46 3 Checking procedure Procedure Shut off the power supply and remove the P C board assembly from the electronic parts base Remove the connecting cable from the terminal block Table 9 6 1 Check Point Symptom 1 Is the fuse blown FILE NO SVM 08028 Causes 1 e Application of shock voltage e Overload by short circuit of the parts Remove the connector for the motor and turn the power on
11. Outdoor unit Mark means check points of Gas Leak Ambient temp Standard Surface temp of heat Fan speed conditions DB WB pressure P exchanger interchanging indoor C MPaG ipe Tt C pipe T1 C Indoor Outdoor Standard 0 50 11 0 High 27 19 5 35 24 Cooling Overload 0 60 15 0 High 32 23 43 26 Low temperature 0 40 2 2 Low 21 15 21 15 e Measure the heat exchanger temperature at the center of U bend By means of TC sensor 11 Heat Exchange sensor Thermo Sensor Infrared Rays Signal Reciver FILE NO SVM 08028 6 CONTROL BLOCK DIAGRAM LI I S SS Initiallizing Circuit Clock Frequency Oscillator Circuit Power Supply Circuit Noise Filter Functions e Louver Control e 3 minutes Delay at Restart for Compressor e Motor Revolution Control e Processing Temperature Processing e Timer Compressor ON OFF Louver ON OFF Signal Relay Driver Louver Driver Signal 220 240 V 50Hz Compressor Outdoor Fan Motor REMOTE CONTROL Infrared Rays Operation START STOP I Operation Mode Selection I AUTO COOL DRY AUTO FAN Temperature Setting Fan Speed Selection ON TIMER Setting 1 OFF TIMER Setting I Louver Auto Swing I Louver Direction Setting d Operation Display Timer Display Fan
12. PH108X1C 4DZDN2 QK164PBA Compressor Output 605 780 Safety device Fuse Overload relay Louver type Automatic louver Usable outdoor temperature range C 21 43 FILE NO SVM 08028 Note 1 e Capacity is based on the following temperature conditions Condition JIS C9612 Temperature Cooling Indoor unit inlet air temperature Outdoor unit inlet air temperature Note 2 1 No need to charge extra refrigerant FILE NO SVM 08028 2 CONSTRUCTION VIEWS 2 1 Indoor Unit Eront panel e Knock out system Knock out system Air inlet Air filter Heat exchanger 250 FILE NO SVM 08028 2 2 Outdoor Unit 500 50 25 Drain Outlet 36 R15 LI 6 MAN SS da EA 8 5C di i s zrs 05 5 854 EP Q g 11x14 Hole 36 50 Detail Drawing Back Leg 3 500 97 _ _ gt Detail Drawing Front Leg 2 11x14 Hole For 8 10 Anchor Bolt Fan Guard COVER PV ne _ _
13. ground connection 6 Tighten the screw on the electrical part cover 2 Screws TC Sensor Horizontal louver 1 Remove the front panel and the electrical part following procedure 2 2 Remove the center shaft of the horizontal louver from the back body 3 Remove the left shaft from the back body 4 Remove the horizontal louver from the back body 49 T 6 Left shaft Center shaft Part name Heat exchanger Procedures 1 Remove the front panel electrical part and the horizontal louver following procedure 3 2 Remove the pipe holder at the rear side of main unit 3 Remove the 2 screws on the heat exchanger at the base bearing Remove the screw on the heat exchanger at the fixed plate from the back body and then pull out the right hand side until the socket of heat exchanger released from the hook of the band motor L and then pull out the upper side of heat exchanger slowly FILE NO SVM 08028 Remarks holder Cross flow fan 1 Remove the front panel electrical part horizontal louver and the heat exchanger following procedure 4 2 Remove the 2 screws on the band motor L and remove the 2 screws on the band motor R and then remove the cross flow fan 3 Loosen the set screw of the cross flow fan then separate the fan and the fan motor Notice To assemble cross flow fan and fan motor to the unit please turn the fan motor unit the center of its
14. is turned off because of power failure during timer operation the timer operation is can celled In that case set the timer operation again NOTE The Everyday Timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure _ 19 FILE NO SVM 08028 8 INSTALLATION PROCEDURE 8 1 Safety Cautions For general public use Power supply cord of parts of appliance for Outdoor use shall be at least polychloroprene sheathed flexible cord design H07 RN F or cord designation 245 IEC66 Shall be installed in accordance with national wiring regulations CAUTION To Disconnect the Appliance from the Main Power Supply This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm in all poles If this is not possible a power supply plug with earth must be used This plug must be easily accessible after installation The plug must be disconnected from the power supply socket in order to disconnect the appliance completely from the mains 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 BEFOR
15. on a heat insulator Fig 8 4 12 n case of bottom right or bottom left piping Heat insulator Fig 8 4 9 e After scribing slits of the front panel with a knife or a making off pin cut them with a pair of nippers or an equivalent tool 28 lt Left hand connection with piping gt Bend the connecting pipe so that it is laid within 43 mm above the wall surface If the connecting pipe is laid exceeding 43 mm above the wall surface the indoor unit may unstably be set on the wall When bending the 2 connecting pipe make sure to use a spring bender so as not to crush the pipe Bend the connection pipe within a radius of 30 mm To connect the pipe after installation of the unit figure To the forefront of flare R 30 mm Use polisin polyethylene N core or the like for bending pipe I Use the handle of screwdriver etc Fig 8 4 14 NOTE If the pipe is bent incorrectly the indoor unit may unstably be set on the wall After passing the connecting pipe through the pipe hole connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them 6 e Bind the auxiliary pipes two connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape 5 unit cable Carefully arrange pipes so that any pipe does not Sti
16. sensor III PC board j short break operation when detected 2 If itis OK check abnormal P C board Heat exchanger Continued Indicated 1 Check heat exchanger LI Ii sensor operation when detected sensor short break abnormal 2 If itis OK check P C board Indoor fan lock All off Indicated 1 Check heat thermal abnormality of when detected fuse is blow or not indoor fan or abnormal Terminal block part thermal fuse break 2 If the thermal fuse is not blow check indoor fan motor Refer to trouble shooting flow charts 1 Abnormality of other All off Indicated Replace P C borad I Z indoor unit P C when detected board abnormal f Cable fl 1 Wrong wiring or All off Indicated 1 Check connective II l I disconnection of when detected cable correct if wiring is Thermal connective cable abnormal wrong fuse 2 Terminal fuse cut 2 Check thermal fuse Refrigerant off and Terminal blocks system 3 If it is OK check P C board Otherparts j 77 1 Overload relay or All off Indicated 1 If overload relay and LI _ including LI _I thermostat for when detected themostat for compres compressor compressor abnormal sor are OK check break refrigerant cycle 2 If refrigerant cycle is OK check P C board 3 If heat exchanger sensor is OK check overload relay and themostat for compressor Content detected by the check codes I I
17. seting is A there is no indication at this position MODE TEMP FAN AUTO e tr kala COOL Sja L L DRY 7 AUTO FAN P S Hr ON OFA 44 Indicate when louver is swing Press swing button to start the swing operation and press it again to stop the swing operation FAN speed indicator Indicates the selected fan speed AUTO QUIET or three fan speed levels LOW MED m HIGH can be shown Indicate Auto will be appear with Dry operation only ON OFF TIMER indicator Indicates when the ON OFF TIMER operation ON TIMER Hr ON OFF TIMER OFF 7 2 Outline of Air Conditioner Control This is a fixed capacity type air conditioner which uses a AC motor for an indoor fan The AC motor drive circuit is mounted in the indoor unit And electrical parts which operate the compressor and the outdoor fan motor are mounted in the outdoor unit The air conditioner is mainly controlled by the indoor unit controller The controller operates the indoor fan motor based upon commands transmitted by the remote control and transfers the operation commands to the outdoor unit controller The outdoor unit receives operation commands from the indoor unit and operates the outdoor fan motor and the compressor 1 Role of indoor unit controller The indoor unit controller receives the operation commands from the remote control and executes them e Temperature measurement
18. storey of a building secure Drain hose Inside the room Fi the normal fan operation using a duct or a wind shield Fig 8 4 18 3 In particularly windy areas install the unit such as to avoid admission of wind CAUTION 4 the following places result Arrange the drain pipe for proper drainage from the Do not install the unit in such places unit A place full of machine oil Improper drainage can result in dew dropping A saline place such as the coast A place full of sulfide gas This air conditioner has the structure designed to drain e A place where high frequency waves are likely water collected from dew which forms on the back of to be generated as from audio equipment the indoor unit to the drain pan welders medical equipment 2 Therefore not store the power and other parts at a height above the drain guide Wall Drain guide Space for pipes 4 Fig 8 4 19 30 FILE NO SVM 08028 8 5 2 Refrigerant piping connection Unit N m 1 Cut the pipe with a pipe cutter Outer dia of copper pipe Noe AS rine C6 35 16 to 18 1 6 to 1 8 kgf m f d Tightening torque 1 29 52 30 to 42 3 0 to 4 2 kgf m Fig 8 5 2 Tightening torque of flare pipe connections 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm A
19. the left diagram A place which can bear the weight of the outdoor unit and does not allow an increase in noise level e Hole should be made at a slight downward slant on the outdoor side Do not form the and vibration Do nol rise the orain 1058 MO A place where the operation noise and discharged drain hose y p gt air do not disturb your neighbors 50 mm f A place which is not exposed to a strong wind lZ or more gt gt gt 2 gt A place free of a leakage of combustible gases ay 5 5 e A place which does not block passage ZN 7 e When the outdoor unit is to be installed in an ba Pre gt gt elevated position be sure to secure its feet the drain the drain e An allowable length of the connecting pipe is up to h h i Ln n peace AO ditch e allowable height level is up to 5 m place where the drain water does not raise any 2 Put water in the drain pan and make sure that the water is drained out of doors 3 When connecting extension drain hose insulate the CAUTION E connecting palo 07805 nu shied 1 Install the outdoor unit without anything blocking pipe the air discharging Shield pipe 2 When the outdoor unit is installed in a place N exposed always exposed to strong wind like a i Eend coast or on a high
20. to df are stored in memory of the microcomputer even if the power supply is turned off Therefore contents of operations in the past are all displayed _ 38 9 5 Troubleshootig Flowcharts 9 5 1 Power can not be turned on No operation at all lt Preliminary checks gt 1 Is the supply voltage normal 2 Is the connection to the AC output OK Shut off the power supply from AC outlet once and turn it on after 5 seconds Does the OPERATION lamp blink YES NO Does the power turn on by pushing the START STOP NNO button of the remote control No problem Does the fuse Parts R62 R63 5601 Does the transmission indicator of remote control flash normally and transmit certainly FILE NO SVM 08028 Operation Check Items Main cause Countermeasure Symptom Remote control is defective Replace the remote control C25 C26 DB01 C27 TO1 are defective F01 blow Does the thermal fuse blow Wrong wiring of Replace the thermal fuse set AC cord or connecting cable is defective Under PF Terminal Is the indication voltage DC12V or 5V of main P C board correct YES Does the CN12 connector the wrong connecting Is the voltage across C27 measured DC310 340V NO Refer to the paragraph Pre check or defective circuit Check conn
21. turned on Relays RY01 or Q02 or IC30 is failure FILE NO SVM 08028 Replace the P C board Correct cabling between indoor and outdoor units Cables between indoor and outdoor units are defective Re wire or replace the defective cords Compressor is defective Capacitor is defective Overload relay is defective Compressor is defective Gas shortage Gas leakage 42 9 5 5 Only outdoor fan does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds NO Does the OPERATION lamp blink YES Does the power turn on by pushing the START STOP button of the remote control NO YES Is the voltage across the terminal D AC 220 240V NO YES Is cable connection between indoor NO and outdoor units correct YES Is the voltage across the terminal 0 2 AC 220 240V NO YES Are all the cords for outdoor NO fan motor normal YES Is the outdoor fan motor winding normal NO Check the winding resistance YES NO Is the capacitor for compressor normal YES Outdoor fan motor is defective FILE NO SVM 08028 See Power can not be turned on See Power can not be turned on Relays RY01 or Q02 or IC30 is failure Correct cabling between indoor and outdoor units Cables between indoor and outdoor units are defective
22. your TOSHIBA dealer immediately Exposure of unit to water or other moisture before installation could result in electric shock Do not store it in a wet basement or expose to rain or water After unpacking the unit examine it carefully for possible damage Do not install in a place that can increase the vibration of the unit Do not install in a place that can amplify the noise level of the unit or where noise and discharged air might disturb neighbors To avoid personal injury be careful when handling parts with sharp edges Please read this installation manual carefully before installing the unit It contains further important instructions for proper installation 20 FILE NO SVM 08028 REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER Please make absolutely sure that the installation of this appliance is reported to the local power supplier before installation If you experience any problems or if the installation is not accepted by the supplier the service agency will take adequate countermeasures Remark per EMC Directive 89 336 EEC To prevent flicker impressions during the start of the compressor technical process following installation conditions do apply The power connection for the air conditioner has to be done at the main power distribution This distribution has to be of an impedance Normally the required impedance is reached at a 32A fusing point Air conditioner fuse has to be 16A max No other equipm
23. your hand and fix the claws Requirement This completes all the attaching work Check that all the hooking claws are fixed to the specified positions Perform the common procedure 1 Remove the fixing screw and the capacitor band 1 Screw 24 x 102 3 Disconnect the lead wires 1 Perform the common procedure 1 2 Remove the fixing screw and the capacitor band 1 Screw 24 x 102 3 Disconnect the lead wires 53 FILE NO SVM 08028 Remarks pP Minus screwdriver 44 Hooking claw een Capacitor for compressor Capacitor band Wa Screws 24 x 102 45 5 Capacitor for fan motor Screws 24 x 102 FILE NO SVM 08028 11 EXPLODED VIEWS AND PARTS LIST 11 1 Indoor Unit E Parts Assy Location Location Description Description No No 401 410 43I 60378 TERMINAL 43T62003 CORD CLAMP 43769371 SENSOR HEAT EXCHANGER 411 43769745 PC BOARD RAS 07SKSX 1 43I 69005 SENSOR THERMOSTAT 411 43769746 PC BOARD RAS 09SKSX 1 43T69612 DISPLAY UNIT 414 43T60343 POWER CORD 43T69364 FUSE TEMPERATURE 54 FILE NO SVM 08028 11 2 Indoor Unit Electric Parts Assembly Location Location Description Description No No 215 43T00462 FRONT PANEL ASSY 43149006 HOLDER FOR PLATE 43T09393 GRILLE OF AIR INLET 43722312 BEARING ASSY MOLD 43T03358 BACK BODY ASSY 43739319 BASE BEARING 43780315 AIR FILTER 43120323
24. 0 1 Indoor Unit Part name Front panel 10 PART REPLACEMENT Procedures How to remove the front panel 1 Stop the operation of the air conditioner and turn off its main power supply 2 Pull the air inlet grille toward you to open it and remove the air inlet grille Then remove the 2 screws fixing the front panel 3 First open the horizontal louver and then remove the front panel from the back body by pulling it toward you How to mount the front panel Push the front panel back in and make sure all hooks are locked FILE NO SVM 08028 Remarks Electrical part How to remove the electrical part 1 Remove the front panel with procedure 1 2 Remove the screw holding the electrical part cover 3 Disconnect the 3 connectors 2 3P for the fan motor and the connector 5P for the louver motor from the P C board assembly 4 Pull out the TC sensor from the sensor holder 5 Remove the screw for the ground connection remove the screw for the electrical part box Then remove the LED and the electrical part box from the main unit How to mount the electrical part 1 To put back the electrical part box lock it to the upper hook of the back body 2 Tighten the screws on the electrical part box 3 Connect the 3 connectors and arrange the wiring same as original condition and then tighten the screw from the LED unit to the back body 4 Attach the TC sensor to the holder 5 Tighten the screw for the
25. 1 MOTOR FAN 43755325 CAPACITOR PLASTIC FILM 43120324 PROPELLER FAN 43T60367 TERMI NAL 2P 43147001 NUT FLANGE C WN HG 55 FILE NO SVM 08028 11 4 Outdoor Unit RAS 09SASX 1 27 29 11 CAPILLARY TUBE Location Location Description Description No No 43T42335 BASE PLATE ASSEMBLY 43T19335 FAN GUARD 43 41390 COMPRESSOR 43T04304 PARTITION 43T49327 CUSHION RUBBER 43T39326 MOTOR BASE CONNECTION PLATE 43797001 NUT 43739325 MOTOR BASE 43T43406 CONDENSER ASSEMBLY 43I 19337 PACKED VALVE COVER 43T00448 FIXING PLATE VALVE 43T00481 UPPER CABINET 43746332 VALVE PACKED 6 35 DIA 43796305 BUSHING 43 00347 VALVE PACKED 9 52 DIA 43762323 TERMINAL COVER 43T47331 BONNET 6 35 DIA 43T19336 FIN GUARD 43147332 BONNET 9 52 DIA 43154303 RELAY OVERLOAD 43747008 CAPILLARY TUBE 1 5 DIA 43T61310 ELECTRIC PARTS BASE 43T00487 FRONT CABINET 43T55337 MF CAPACITOR 43T21401 MOTOR FAN 43755325 CAPACITOR PLASTI C FILM 43120324 PROPELLER FAN 43T60367 TERMI NAL 2P 43747001 NUT FLANGE C 57 TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND
26. 2 9 4 1 How to use remote control in service mode WC K10JE e Alphanumeric characters are used for the check code 5 is 5 B is 6 d m is A h is B is C d is D ra 27 FILE NO SVM 08028 1 Press CHK button with a tip of pencil to set the remote control to the service mode e 00 is indicated on the display of the remote control e The timer lamp on the indoor unit blinks continuously 5 times per 1 sec Press TEMP button If there is no fault with a code the indoor unit will beep once Pi and the display of the remote control will change as follows e Check the unit with all 35 check codes 00 to 22 as shown in Table 9 4 1 e Press button to change the check code backwards If there is a fault the indoor unit will beep for 10 seconds Pi Pi Pi Note the check code on the display of the remote control e 2 digits alphanumeric will be indicated on the display All lamps on the indoor unit will blink 5 times per 1 sec Press START STOP button to release the service mode e The display of the remote control returns to as it was before service mode was engaged FILE NO SVM 08028 Table 9 4 1 Block level Diagnosis function Air i ee Block pit Symptom Conditioner Condition status Indoor Thermo sensor Continued Indicated 1 Check thermo
27. 2 PNK F Temp fuse 73 GRNBYEL INDOOR TERMINAL 1 2 BLOCK D TERMINAL BLOCK INDOOR OUTDOOR OUTDOOR TERMINAL G CHASSIS BLOCK FAN MOTOR RED CAPACITOR CAPACITOR jac L FAN MOTOR JE Type A Type B ZU RED j WHI OVERLOAD RELAY i BLK t amA PNK Mad OL VIII S O FILE NO SVM 08028 4 SPECIFICATION OF ELECTRICAL PARTS 4 1 Indoor Unit Parts name Fan motor for indoor AFS 220 20 4AR Specifications AC Motor with 145 C thermo fuse Thermo sensor TA sensor 10 at 25 Switching power supply T01 ST 001 Microcontroller unit IC30 TMP87CM40ANG 6P68 Heat exchanger sensor TC sensor 10 at 25 Line filter L01 LC SS11V 06270 27mH 600mA Bridge rectifier DB01 DB105G 1A 600 V Capacitor C27 EKMH401VSN470MP20S 47uF 400 V Fuse F01 BET6 3A 6 3A 250VAC Varistor R62 R63 SR561K14DL 560 V Resistor R64 RF 2TK5R6 5 60 2W Louver motor MP24ZCT 12VDC Relay Comp RY01 Compressor WLF 240 20A Type A Fan motor for outdoor PH108X1C 4DZDN2 G4A 1A E CA Rating 20A AC250 V 12VDC Specifications Output Rated 605W 2 poles 1 phase 220 240V 50Hz at 20 C Winding resistance Q C S 4 40 Output Rated 20 W 6 poles 1 phase 220 240 V 50Hz at 20 C Winding re
28. 8028 8 6 How to Set Remote Control Selector Switch When two indoor units ae installed in seperated rooms there is no need to change the selector switch Remote control selector switch When two indoor units are installed in the same room or the adjacent two rooms they may be controlled simultaneously with a single remote control To prevent this set either unit and its remote control to B setting Both units are set to A setting before shipment The remote control signal is not recived when the indoor unit setting is different from the remote control one Setting the remote control selector switch with the indoor unit 1 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the indoor unit 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 33 2 Set the remote control selector switch with the remote control B is indicated on the liquid crystal display when setting remote control selector switch to B A is not indicated on the display even if the selector Switch is set to A Load the remote control with the batteries Press the CHECK button using something with sharp point The preset temperature on the remote control changes to 00 N o 2 Press the MODE button while pressing the CHECK button B is ind
29. ATION and TIMER lamps are blinking Cycle failure e Gas shortage or other refrigerant cycle trouble e Heat exchanger sensor open break or short e Overload relay or thermostat trouble of compressor Thermo sensor TA short or break Heat exchanger sensor TC short or break Table 9 3 2 Diagnosis by detective operation Symptom Primary judgement The remote control Turn off the power supply once The remote control The indoor unit and or remote does not work then turn it on Try to operate still does not work control is are defective the remote control The remote control OK works The outdoor fan The compressor operates The outdoor unit Outdoor fan does not rotate motor is defective The compressor does not operate An internal part of the compressor or PCB is defective 36 9 4 Self Diagnosis by Remote Control Check Code 1 If the lamps are indicated as shown B to G in Table 9 3 1 exchanger the self diagnosis by the remote control When the remote control is set to the service mode the indoor controller diagnoses the opera tion condition and indicate the information of the self diagnosis on the display of the remote control with the check codes If a fault is detected all lamps on the indoor unit will blink at 5Hz and it will beep for 10 seconds Pi Pi Pi The timer lamp usually blinks BHz during the self diagnosis
30. E INSTALLATION DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEATORS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT R410A WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE IT CAUSES GENERATION OF POISONOUS GAS WARNING Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches Do not install in a place which cannot bear the weight of the unit Personal injury and property damage can result if the unit falls Before doing the electrical work attach an approved plug to the power supply cord Also make sure the equipment is properly earthed Appliance shall be installed in accordance with national wiring regulations If you detect any damage do not install the unit Contact
31. Fan speed M L x 2 4 L temp 3 Fan speed M L x 1 4 L Linear approximation NOTE1 from M and L 1 Fan speed M L x 3 4 L 2 Fan speed M L x 2 4 L NOTE2 ECO operation can not be set 3 Fan speed D x 1 4 L Linear approximation Fig 7 3 1 Setting of air flow from M and L Fig 7 3 3 Setting of air flow FAN AUTO 16 FILE NO SVM 08028 7 3 3 Dry operation 1 One of 2 operations Cooling or Fan only MODE button on the remote control is set is selected according to difference between the to the dry operation preset temperature and the room temperature at which the automatic operation has started as shown in Fig 7 3 6 The Fan only operation continues until the room temperature reaches a level at which another mode is selected 1 The compressor outdoor fan and operation display on the remote control are controlled as shown in Fig 7 3 4 2 Temporary Auto 8 C E When the RESET button the indoor unit FL QNM 65155 is pushed the preset temperature is fixed at 24 a the indoor unit is controlled shown ON lt gt gt 5 I ct C lt Fig 7 3 6 2 SEI 5 56 56 8 C E 411L 9 x OFF OFF Preset 0 temp Cooling operation Compressor Outdoor fan OPERATION displa Fan only operation Fig 7 3 4 2 The microcontroller turns the com
32. Only Sign Display Indoor Fan Motor Louver Motor FILE NO SVM 08028 7 OPERATION DESCRIPTION 7 1 Remote control 7 1 1 Function of Push Putton 1 Infrared signal emitter 2 Set louver button FIX TOSHIBA 8 Auto Louver button SWING MODE TEMP AUTO 4 Mode select button MODE coo TIE DRY lt x 5 Reset button RST AUTO FAN OFF 6 On timer button ON Y Off timer button OFF as Reserve button SET D START STOP 9 Cancel button CLR Check button CHK b ECO button ECO 2 Fan speed button FAN 43 Start Stop button START STOP Temperature button 814 49 7 1 2 Display of Remote Control FILE NO SVM 08028 All indications except for the clock time indicator are displayed by pressing the button 1 Transmission mark 6 Swing This transmission mark A indicates when the remote controller transmits signals to the indoor unit 2 Mode indicator 7 Indicates the current operation mode AUTO COOL DRY and AUTO FAN 3 Temperature indicator Indicates the temperature setting 17 C to 30 C 4 ECO indicator Indicates when the ECO is in activated 8 Press the ECO button to start and press it again to stop operate 5 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
33. TOSHIBA FILE NO SVM 08028 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS 07SKSX 1 RAS 07S2AX 1 RAS 09SKSX 1 RAS 09SASX 1 April 2008 CONTENTS SPECIFICATIONS CONSTRUCTION VIEWS 2 1 Indoor Unit 2 2 Outdoor Unit RAS 07S2AX 1 2 3 Outdoor Unit RAS 09SASX 1 WIRING DIAGRAM SPECIFICATION OF ELECTRICAL PARTS 4 1 Indoor Unit 4 2 Outdoor Unit RAS 07S2AX 1 4 3 Outdoor Unit RAS 09SASX 1 REFRIGERATION CYCLE DIAGRAM 5 1 RAS 07SKSX 1 RAS 07S2AX 1 5 2 RAS 09SKSX 1 RAS 09SASX 1 CONTROL BLOCK DIAGRAM OPERATION DESCRIPTION 7 1 Outline of Air Conditioner Control 7 2 Description of Operation Circuit 7 3 Low Temperature Limit Control 7 4 Auto Restart Function INSTALLATION PROCEDURE 8 1 Safety Cautions 8 2 Installation Diagram of Indoor and Outdoor Units 8 3 Installation 8 4 Indoor Unit 8 5 Outdoor Unit 8 6 How to Set Remote Control Selector Switch 8 7 Others TROUBLESHOOTING CHART 9 1 Troubleshooting Procedure 9 2 Basic Check Items 9 3 Primary Judgement 9 4 Self Diagnosis by Remote Control Check Code 9 5 Troubleshooting Flowcharts 9 6 Troubleshooting for Remote Control Including The Indoor P C Board FILE NO SVM 08028 FILE NO SVM 08028 10 PARTS REPLACEMENT 10 1 Indoor Unit 10 2 Outdoor Unit RAS 07S2SX 1 10 3 Outdoor Unit RAS 09SASX 1 11 EXPLODED VIEWS AND PARTS LIST 11 1 Indoor Unit E Parts Assy 11 2 Indoor Unit 11 3 Outdoor Unit RAS 07S2SX 1
34. at the air inlet of the indoor heat exchanger by the indoor temperature sensor e Temperature measurement of the indoor heat exchanger by the heat exchanger sensor e Louver motor control e Indoor fan motor operation control e LED display control e Transferring of operation commands to the outdoor unit Receiving of information of the operation status and judging of the information or indication of error 2 Role of outdoor unit controller The outdoor unit controller receives the operation commands from the indoor controller and executes them e Compressor operation control Operation control of outdoor fan motor e Turning off the compressor and outdoor fan when the outdoor unit receives the shutdown command Operations according to the commands from the indoor unit Table 7 2 1 Indoor fan and air flow rate 7 2 2 FILE NO SVM 08028 7 2 1 Louver control 1 Vertical air flow louver Position of veritcal air flow louver is automatically controlled according to the operation mode Besides position of vertical air flow louver can be arbitrarily set by pressing FIX button The louver position which is set by FIX button is stored in the microcomputer and the louver is automatically set at the stored position for the next operation 2 Swing If SWING button is pressed when the indoor unit is in operation the vertical air flow louver starts swinging When FIX button is pressed it stops swinging In
35. binet After connecting the power cord and connecting cable attach the cord clamp and wiring cover e Insert the upper part into the upper cabinet and insert the claw which has been hooked to the lower part into the square hole and then fix it with screw ST1T 4 x 102 1 pc Attach the valve cover ST1T 4 x 102 1 pc e Insert the upper part to the upper cabinet set the hook claw of the valve cover to square holes at three positions of the main unit and attach it pushing upward Front cabinet 1 Detachment Perform work of item 1 of D Remove upper screw ST1T 4 x 10 pcs of the front cabinet and lower screws ST1T 4 x 102 8 pcs of the front cabinet e Both side of front cabinet envelop the unit so remove it by pulling sideward 2 Attachment 1 Assemble front cabinet to the unit 2 Attach the removed screws to the original positions 54 Part name Fan motor Compressor Procedures 1 Perform work of item 1 of and 1 of 2 Remove the flange nut fixing the fan motor and the propeller fan e Flange nut is loosened by turning clockwise To tighten the flange nut turn counter clockwise 3 Remove the propeller fan 4 Disconnect the connector for the fan motor from the ASM E PARTS 5 Remove the fixing screws 4 pcs holding the fan motor by hand so that it does not fall 6 Cut the motor lead at the point which is 100 mm apart from the connector toward t
36. ck out of the rear plate of the indoor unit e Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc e Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use Auxiliary pipes Installation plate polyethylene foam as insulating material 9 When bending pipe carefully do it not to crush ity FILE NO SVM 08028 8 4 5 Indoor unit fixing 1 Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hooks Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate 3 While pressing the indoor unit onto the wall hook it at the lower part on the installation plate Pull the indoor unit toward you to confirm that it is firmly hooked up on the installation plate Press unhook Fig 8 4 15 e For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing its bottom up at the specified parts Push Push Fig 8 4 16 29 FILE NO SVM 08028 8 4 6 Drainage 8 5 Outdoor Unit 1 Run the drain hose sloped downwards 8 5 1 Installation place NOTE Aplace which provides the spaces around the outdoor unit as shown in
37. d result in wiring An approved circuit breaker or personal injury and property damage switches must used 2 Connection with power supply plug Installation plate Attach power supply plug with power cord Keep horizontel direction and plug it into wall outlet An approved C power supply cord and plug must be used C pone 0 V M0IC X 0 X e Ensure all wiring is used within its electrical rating Projection 5 mm dia hole 15 mm or less 79 RAS 07 09SKSX 1 ZZ xxi gt PRIM 42 0 6 Mounting Power source 50 Hz 220 240 V Single phase SEES screw x 254 Maximum 7 5A ana running current N Clip anchor Plug socket amp local parts 16 fuse rating Fig 8 4 4 Power cord 1 mm or more Failure to firmly install the unit may result in personal injury and property damage if the unit falls e In case of block brick concrete or similar type walls make 5 mm dia holes in the wall e Insert clip anchors for appropriate mounting Screws NOTE e Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it 26 lt How to connect the connecting cable gt Wiring of the connecting cable can be carried out without removing the front panel 1 Remove the air inlet grille Open the air inlet grille upward and pull it toward you 2 Remove the terminal cover and cord clamp 3 Insert the connecting cable accordi
38. door Fan Control The operation controls the fan speed at indoor unit side The indoor fan cross flow fan is operated by the phase control induction motor The fan rotates in 3 stages in MANUAL model and in 5 stages in AUTO mode respectively Table 7 2 1 1 When setting the fan speed to L M or H on the remote controller the operation is performed with the constant speed shown in Fig 7 2 1 Fig 7 2 1 Fan speed Indication A Low Med High 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 Table 1 according to the setup temperature room temperature and heat exchanger temperature 3 When setting the fan speed to QUIET on the remote controller revolution of the fan motor is controlled to the fan speed level is L Fan speed level OPERATION MODE RAS o7sksx 1 90 50000 Air flow m h 1300 1300 1300 1300 1250 1150 1100 950 950 900 800 750 700 650 500 540 540 540 540 510 470 440 370 370 350 300 270 250 220 150 RAS 09SKSX 1 fan speed om Air flow m h 1350 1350 1350 1300 1250 1180 1140 1000 980 980 900 800 750 700 550 560 560 560 540 510 500 460 400 390 390 350 300 270 250 180 2A 5S FILE NO SVM 08028 7 3 Description of Operation Mode 7 3 2 Cooling operation IMODE button on t
39. e refrigerant in the 5 s e 1 A outdoor unit 02952 mm 3 0 to 4 2 kgf m For details see the manual of the vacuum pump Liquid side 16 to 18 N m Using a vacuum pump 26 35 mm 1 6 to 1 8 kgf m Be sure to use a vacuum pump with counter flow 9 to 10 N m prevention function so that inside oil of the pump does Service port 0 9 to 1 0 kgf m not flow backward into pipes of the air conditioner when the pump stops If oil inside of the vacuum pump enters into the air conditioner which use R410A Hexagonal wrench refrigeration cycle trouble may result 1 Connect the charge hose from the manifold valve to the service port of the gas side packed valve 2 Connect the charge hose to the port of the vacuum pump 3 Open fully the low pressure side handle of the 0 gauge manifold valve 4 Operate the vacuum pump to start evacuating Perform evacuating for about 15 minutes if the piping length is 20 meters 15 minutes for 20 meters assuming a pump capacity of 27 liters per minute Then confirm that the compound pressure gauge reading is 101 kPa 76 cmHg 5 Close the low pressure side valve handle of gauge manifold 6 Open fully the valve stem of the packed valves both sides of Gas and Liquid 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valves Compound pressure gauge Pressure gauge 101 kPa 2 6cmHg A LS Handle Lo Hand
40. ection P C board is defective before power P C board block Shut off the power supply once and turn Is the voltage across C32 NO 5 the voltage across C32 Re wiring the cable it on again after disconnecting the motor connector CN10 measured DC12V measured DC12V Replace the main P C board Motor is defective Be sure to disconnect the motor connector CN10 after shut off the power supply or it will be a cause of damage of the motor 39 FILE NO SVM 08028 9 5 2 Power can not be turned on after replacing indoor P C board Checking Procedure Connect the AC Power supply Does the OPERATION lamp blink YES Is itwired asshown Return the wiring of the in Figure below power relay is returned to _ the normal procedure YES To the paragraph of No Power turns on Black White Indoor Terninal Block CN31 5 Blue 01 Green Yellow Supply AC 220 240V 50 60 Hz 40 9 5 3 Outdoor unit does not operate Shut off the power supply from AC outlet once and turn it after 5 seconds NO Does the OPERATION lamp blink YES Does the power turn on by pushing the START STOP button of the remote control NO YES
41. en selected To cancel the Auto Restart follow the steps described in the section Auto Restart Function of the Owner s Manual 24 FILE NO SVM 08028 9 TROUBLESHOOTING CHART 9 1 Troubleshooting Procedure Follow the details of 9 2 Basic Check Items If there is no trouble corresponding to 9 2 check whether or not there are faulty parts following 9 4 Self Diagnosis by Remote Control 9 2 Basic Check Items 9 2 1 Power supply voltage The line voltage must be AC 220 240V If it is not within this range the air conditioner may not operate normally 9 2 2 Incorrect cable connection between Indoor and outdoor units The indoor unit is connected to the outdoor unit with 5 cables Heat pump model or 3 cables Cooling Only model Check that the indoor and outdoor units have been properly connected with terminals assigned the same numbers If the connectors are not properly connected the outdoor unit will not operate normally or OPERATION lamp and TIMER lamp will blink 5 2 9 2 3 Program control The microcontroller operates as shown in Table 9 2 1 to control the air conditioner If there are any opera tional problems check whether or not the problems correspond to Table 9 2 1 If they correspond to the Table they are not problems with the air conditioner but they are indispensable operations to control and maintain the air conditioner properly Table 9 2 1 Operation of air conditioner When
42. ent should be connected to this power line For detailed installation acceptance please contact your power supplier whether its restriction does apply for products like washing machines air conditioners or electrical ovens For power details of the air conditioner refer to the rating plate of the product 24 FILE NO SVM 08028 8 2 Installation Diagram of Indoor and Outdoor Units For the rear left and left piping 47 mm or more Installation plate Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation E Do not allow the drain hose to get slack Cut the piping hole sloped slightly T3 al Make sure to run the drain hose sloped downward J Shield pipe The auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left Pan head wood screw Active Carbon Catechin filter Before installing the gt wireless remote control With the remote control cover open load the batteries supplied correctly observing their Remote control holder polarity Right 9 2 Wireless remote control e L Rear right Wireless remote control ph S T Left right left Bottom left S Insulate the refrigerant pipes separately with insulation not 6 mm thick heat resisting polyethylene foam 3 Batteries Vinyl tape App
43. he fan 7 Use the connector used for the ASM E PARTS and pinch the lead wires using the closed end splice 1 Perform work of item 1 of 0 1 of 2 3 2 Extract refrigerant gas 3 Remove the partition board ST1T 4 x 102 3 pcs 4 Remove the sound insulation material Remove the terminal cover of the compressor and disconnect the lead wire of the compressor thermo and the compressor from the terminal Remove the pipe connected to the compressor with a burner Make sure the flame does not touch the 4 way valve 7 Remove the fixing screw of the base plate and heat exchanger ST1T 4 x 102 2 pcs 8 Pull upward the refrigeration cycle 9 Remove the nut fixing the compressor to the base plate 52 FILE NO SVM 08028 Remarks Fan motor Propeller fan Closed end Flange nut Part name Fan guard Capacitor for compressor Capacitor for fan motor Procedures 1 Detachment 1 Perform work of item 1 of and 1 of Requirement Perform the work on a corrugated cardboard cloth etc to prevent scratches to the product 2 Remove the front cabinet and place it down so that the fan guard side faces downwards Remove the hooking claws by pushing a minus screwdriver according to the arrow mark in the right figure and remove the fan guard 2 Attachment Insert the claws of the fan guard in the hole of the front cabinet Push the hooking claws 8 positions by
44. he remote control is set 1 When turning on the breaker the operation lamp to the cooling operation blinks This means that the power is on or the power supply is cut off 1 The compressor outdoor fan and operation display lamp are controlled as shown in 2 When pressing button on the Fig 7 3 2 remote control receiving beep sounds from the indoor unit and the next operation is performed together with opening the vertical air flow louver 3 Once the operation mode is set it is memorized in the microcomputer so that the previous operation can be effected thereafter simply by pressing button OFF OFF 7 3 1 Fan only operation IMODE button on the remote control is set to the fan only operation Preset 0 temp Room temp Presettemp 1 When FAN button is set to AUTO the indoor fan S 6_ motor operates as shown in Fig 7 3 1 When C lt a FAN button is set to LOW MED or HIGH E 5 ws the motor operates with a constant air flow 8 C Fig 7 3 2 gt 3 2 When FAN button is set to AUTO the indoor fan 9 42 5 motor operates as shown in Fig 7 3 5 When 5912 FAN button is set to LOW MED or HIGH the motor operates with a constant air flow 1 5 E 1 8 C E 40 5 8 Preset 0 a Preset temp 24 C 5 8 c NOTE1 71 Fan speed M L x 3 4 L 2
45. icted at the right of the present temperature display e To reset the switch to the A setting press the MODE button again while pressing the CHECK button NN MODE AUTO COOL lt TEMP FAN 333 Y TEMP ES X um D START STOP DRY AUTO FAN SWING 7ZiFIX D O MODE pst C ECO q MODE ee CHECK button button ON OFF SET CLR Sa Fig 8 6 1 3 Confirm that the indoor unit can operate with the new setting FILE NO SVM 08028 8 7 Others 8 7 1 Gas leak test A Valve cover Valve stem cap connection Service cap connection Fig 8 7 1 e Check the flare nut connections valve stem cap connections and service port cap connections for gas leak with a leak detector or soap water 8 7 2 Test operation To switch the TEST RUN COOL mode press RESET button for 10 seconds The beeper will make a short beep SX RESET button Fig 8 7 2 8 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 off position Turn it on as required How to set the auto restart Press and hold the RESET button for about 3 seconds the electronic beeper makes three short beeps to tell you the Auto Restart has be
46. le Hi 279 Keep full closed Charge hose 2 Charge hose Connecting pipe N W Vacuum pump adapter for counter flow I prevention lt Packed valve at gas side Service port Valve core Setting pin Packed valve at liquid side Fig 8 5 7 39 8 5 4 Wiring connection 1 2 Remove the valve cover from the outdoor unit Connect the connecting cable to the terminal as identified with their respective matched numbers on the terminal block of indoor and outdoor unit When connecting the connecting cable to the outdoor unit terminal make a loop as shown in the installation diagram of indoor and outdoor unit to prevent water coming in the outdoor unit Insulate the unused cords conductors from any water coming in the outdoor unit Proceed them so that they do not touch any electrical or metal parts Stripping length of connecting cable 75 mm 10 mm Earth line 6 w e Every wire must be connected firmly Earth line N 10 mm g Connecting gt cable eN 65 mm Cord clamp Fig 8 5 9 e Wrong wiring connection may cause some electrical parts burn out e Be sure to comply with local codes on running the wire from indoor unit to outdoor unit size of wire and wiring method etc zi NOTE Wire type H07 RN F or 245 IEC66 2 0 mm or more FILE NO SVM 0
47. ly after carrying out a drainage test 600 mm or more Extension drain hose Not available provided by installer 22 8 3 Installation 8 3 1 Optional installation parts Part Parts name t Code Shy Refrigerant piping Liquid side 26 35 mm petai Gas side 9 52 mm Pipe insulating material polyethylene foam 6 mm thick One Putty PVC tapes each lt Fixing bolt arrangement of outdoor unit gt 500 mm wass 97mm Air inlet lt E 53 mm 280 mm P Es Y Air outlet N Drain outlet Fig 8 3 1 FILE NO SVM 08028 Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind e Use 28 mm or 210 mm anchor bolts and nuts 23 FILE NO SVM 08028 8 3 2 Accessory and installation parts NS Part name Q ty tm Part name Q ty uw Part name Q ty OS i om 8 Installation plate x 1 Battery x 2 Active Carbon Catechin filter x 2 920 2 il mmm Wireless remote control x 1 Remote control holder x 1 Mounting screw 4 x 25 x 6 Others Name Owner s manual Installation manual Pan head wood screw 3 1 x 16 x2 _ 24 FILE NO SVM 08028 8 4 Indoor Unit 8 4 2 Cutting a hole and mounting installation
48. m P O D 6 35mm Packed valve Packed valve 29 52 26 35 gt gt ee Ta brska ee nm eh vane ef 800100 Cooling Compressor PH108X1C 4DZDN2 Capillary tube 1 2x5002 3 s Heat exchanger E 2 5 D lt Refrigerant e a 990019 805 2 2 229050050 MENT Cooling Outdoor unit Mark means check points of Gas Leak Ambient temp Standard Surface temp of heat en speed conditions DB WB pressure P exchanger interchanging MPaG pipe T1 C indoor C Indoor Outdoor Standard 0 57 13 0 High 27 19 35 24 Cooling Overload 0 68 17 5 High 32 23 43 26 Low temperature 0 42 4 0 Low 21 15 21 15 Measure the heat exchanger temperature at the center of U bend By means of TC sensor 10 FILE NO SVM 08028 5 2 RAS 09SKSX 1 RAS 09SASX 1 T1 Indoorunit _ Heat exchanger 1 Cooling 0 39m dE 0 49m Connecting pipe Connecting pipe 09 52 26 35 Cross flow fan i V lt OO _ gt V 0 0 9 52 1 O D 6 35mm Packed valve Packed valve em 29 52 26 35 A Capillary tube 1 5 700 i Heat exchanger Jj D Refri i gerant Piper R22 058kg j Cooling
49. mperature and the preset temperature The Auto Fan operation continues in the Automatic operation When the room temperature is in the range Preset temperature 1 C the Auto Fan operation is selected The ECO operation operation does not work These operations do not work when the unit is in the Dry operation or Auto Fan operation 35 FILE NO SVM 08028 9 3 Primary Judgement 9 3 2 Failure diagnosis The indoor unit diagnoses the operation condition and indicates the information of the self diagnosis with the The indoor unit controller receives the operation lamps on the display panel of the indoor unit commands from the remote control and executes them e Temperature measurement at the air outlet of the indoor heat exchanger by the indoor temperature sensor e Temperature setting of the indoor heat exchanger by the heat exchanger sensor Louver motor control Indoor fan motor operation control LED display control Transferring of operation commands to the outdoor unit 9 3 1 Role of indoor unit controller Table 9 3 1 OPERATION lamp is blinking 1Hz Power failure when the power supply is turning on OPERATION lamp is blinking 5Hz OPERATION lamp is blinking 5Hz OPERATION lamp is blinking 5Hz Indoor fan motor lock or failure OPERATION lamp is blinking 5Hz Indoor P C board failure OPERATION and TIMER lamps are blinking Wrong wiring of connecting cable 5Hz OPER
50. ng temperature lower enough than room temperature 5 Continuous operation 1 Compressor does not operate 2 OPERATION lamp blinks 1 The temperature of the indoor heat exchanger is abnormally lower 2 Poor contact of the heat exchanger sensor The connector is disconnected CNO1 3 Heat exchanger sensor main P C board are defective Refer to Table 9 6 2 for the judgment of defective resistance values 4 Main P C board is defective Turn the power on after connecting the motor connector Start the operation with the following condition 1 Operation Cooling 2 Airflow High fan 3 Continuous operation 1 Motor does not rotate The key operation is accepted 2 The Motor rotates but it vibrates too much 47 1 Poor contact of the motor connector 2 board is defective FILE NO SVM 08028 Table 9 6 3 Approximate resistance value of thermo sensor KO Temperature 0 C 10 C 20 C 25 C 30 C Resistance value 33 8 20 35 12 59 10 00 7 99 9 6 3 How to shorten time of restart delay timer Press CLR button while pressing CHK button with a tip of a pencil Then press START STOP signal to the indoor unit MODE AUTO COOL DRY AUTO FAN A 2 FAN Su S14 AUTO LI Hr ON OFF gt QUIET amp Y TEMP D START STOP 48 1
51. ng to the local cords into the pipe hole on the wall 4 Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 15 cm from the front 5 Insert the connecting cable fully into the terminal block and secure it tightly with screws Tightening torque 1 2 N m 0 12 kgf m Secure the connecting cable with the cord clamp Fix the terminal cover rear plate bushing and air inlet grille on the indoor unit Be sure to refer to the wiring system diagram labeled inside the front panel e Check local electrical cords and also any specific wiring instructions or limitations NO SVM 08028 Terminal block Cord clamp Terminal cover Connecting cable About 5 Screw Earth line d U C ti bl aa onnecting cable Fig 8 4 5 Earth line 65 mm 10 mm 50 mm Stripping length of the connecting cable Fig 8 4 6 NOTE e Use stranded wire only Wire type H07 RN F or more lt How to install the air inlet grille on the indoor unit gt e When attaching the air inlet grille the contrary of the removed operation is performed Fig 8 4 7 27 FILE NO SVM 08028 8 4 4 Piping and drain hose installation How to fix the drains cap 1 Insert hexagonal wrench 4 mm in a center head lt Piping and drain hose forming gt Since dewing results in a machine trouble make sure to i
52. nsulate both the connecting pipes Use polyethylene foam as insulating material Rearright mu c Rear left o 9 CC Bottom left mA s lt Fig 8 4 10 c Left m Os T EG 2 insert drains 5 a Bottom right a 3 0 79 Right gt Do not apply lubricating oil refrigerant machine oil when inserting the drain cap Application causes deterioration and drain leakage of the plug 1 Die cutting Front panel slit For leftward connection cut out slit on the left side of the front panel A knife will produce splinters so use nippers Insert a hexagon wrench 4 mm Fig 8 4 11 2 Changing drain hose For leftward connection bottom leftward connection CM and rear leftward connection s piping it is necessary to CAUTION change the drain hose and drain cap Firmly insert the drain hose and drain cap otherwise water may leak How to remove the drains cap Clip drain cap by needle nose plier and pull out n case of right or left piping e After scribing slits of the front panel with a knife or a making off pin cut them with a pair of nippers or an 1 RUN equivalent tool Fig 8 4 8 How to install the drain hose Firmly insert drain hose connecting part until hitting
53. ntroller to turn it on RESET button While the filter check indicator is on the RESET button has the function of filter reset betton 48 FILE NO SVM 08028 7 5 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 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 7 5 3 Power Failure During Timer Operation When the unit
54. pressor on and off at the regular intervals 4 to 6 minutes While the compressor is turning off the indoor fan motor operates in the SUPER LOW position The pattern of operation depending on the relation between room temperature and preset 7 4 Low Temperature Limit Control temperatures is shown in Fig 7 3 5 Room temp Preset temp Fig 7 3 6 The microcontroller detects the indoor heat exchanger temperature to prevent the indoor heat exchanger from freezing The compressor and outdoor fan motor are controlled as shown in Fig 7 4 1 Room temp Preset temp 1 Preset temp Heat exchanger temperature Outdoor fan ON Less than 2 C continues for 5 minutes OFF Compressor Outdoor fan Indoor fan Super Low Fig 7 3 5 Fig 7 4 1 3 FAN button on the remote control is set to AUTO only 4 The ECO operation cannot be set 7 3 4 Automatic operation MODE button on the remote control is set to the automatic operation 17 FILE NO SVM 08028 7 5 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 neces
55. sary to set it to work 7 5 1 How to Set the Auto Restart Function To set the auto restart function proceed as follows The power supply to the unit must be on the function will not set if the power is off Press the RESET button located in the center of the front panel continuously for three seconds The unit receives the signal and beeps three times The unit then restarts operating automatically in the event of power supply being accidentally shut down When the unit is standby Not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times The green indicator flashes and continues to operate for 5 seconds If the unit is not required to operate at this time press RESET button once more or use the remote controller to turn it off RESET button When the unit is in operation 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 co
56. sistance Red Black White Black 435 Output Rated 20 W 6 poles 1 phase 220 240 V 50Hz SKF 240 20B Winding resistance Red Black White Black Type B at 20 Running capacitor DS451155NPQB AC 450 V 1 5uF for fan motor Running capacitor RS44B256U02138 AC 440 V 25uF for compressor 5 Overload relay JMRA99208 9102 235 2 260 1 4 2A 80 C Open 135 5 C Close 69 11 FILE NO SVM 08028 4 3 Outdoor Unit RAS 09SASX 1 No Output Rated 780W 2 poles 1 phase 220 240 V 50Hz 1 Compressor QK164PBA Winding resistance C S at 20 C 3 67 Output Rated 20 W 6 poles 1 phase 220 240 V 50Hz w Winding resistance O White Black 2 at 20 iss Output Rated 20 W 6 poles 1 phase 220 240 V 50Hz SKF 240 20B D Winding resistance O Red Black White Black Type B 9 x Fan motor for outdoor at 20 C 235 2 260 1 Running capacitor 3 DS451155NPQB AC 450 V 1 5uF for fan motor Running capacitor RS44B356U0215S AC 440 V 35uF for compressor Overload relay LPAP960B U T 6 1A 80 C Open 135 5 C Close 75 11 C FILE NO SVM 08028 5 REFRIGERATION CYCLE DIAGRAM 5 1 RAS 07SKSX 1 RAS 07S2AX 1 T1 lndoorunit _ Heat exchanger 1 Cooling 0 39m 0 49m Connecting pipe Connecting pipe 52 26 35 cross tow tan gt V O D 9 52m
57. terminal meets the top position of band motor R Fix the cross flow fan with the set screw at the position where the gap between the back body and the right surface of the cross flow fan is 4 7 mm 6 Set screw Middle of the fan motor terminal Base bearing 1 Remove the front panel electrical part horizontal louver heat exchanger and the cross flow fan following procedure 5 2 Remove the 2 screws fixing the base bearing 3 Remove the bearing from the base bearing If the housing protrudes from the base bearing put the housing in position and attach the bearing to the base bearing 2 Screws FILENO SVM 08028 10 2 Outdoor Unit Part name Procedures Remarks Common 1 Detachment Upper cabinet procedure 1 Stop operation of the air conditioner and turn off the main switch and breaker of the c AR cover air conditioner e Remove the valve cover ST1T 4 x 10 E 1 pc e After removing screw remove the valve cover pulling it downward Remove the wiring cover ST1T 4 x 100 2 pcs and then remove the power cord connecting cable and cord clamp 5 2 4 x 162 2 pcs Remove the upper cabinet ST1T 4 x 100 5 pcs e After removing screws remove the upper cabinet pulling it upward 2 Attachment Upper cabinet Attach the upper cabinet ST1T 4 x 100 5 pcs e Hook the rear side of the upper cabinet to the claw of the rear cabinet and then place it on the front ca
58. the main power supply is turned on the OPERATION lamp on the indoor unit blinks Descriptions The OPERATION lamp blinks to indicate that power is turned on If the START STOP button is pressed the lamp stops blinking The indoor fan motor speed does not change in the Dry operation The indoor fan motor speed is automatically controlled in the Dry operation The compressor is not turned off even though the room temperature is in the range that the compressor is turned off The compressor has a function that it is not turned off for 3 minutes after it is turned on even though the room temperature is in the range that the compressor is turned off The compressor is not turned on and off even though the thermo control is operated in the Dry operation In the Dry operation the compressor is turned on and off automatically at the regular intervals independent of the thermo control The compressor is not turned on even though the room temperature is in the range that the compressor is turned on The compressor is not turned on in the restart delay timer 3 minutes timer operation It is also not turned on after the power supply is turned on because of this timer operation The operation mode changes in the Automatic operation In Automatic operation the room temperature is detected all time for control fan speed and the operation mode is changed every 15 minutes according to difference between the room te
59. y hand in no operating status 1 pulse one turn Replace connecting the cable or power cord Replace the control P C board thermal fuse and terminal block 44 FILE NO SVM 08028 9 6 Troubleshooting for Remote Control Including the Indoor P C Board There is no been from the indoor unit The operation lamp of the air conditioner main unit does not light Push the START STOP button Does the transmission indicator blink NO YES Reset the remote control by use the tip pencil push in the RESET hole Is there direct sunlight on the receptor of the air conditioner NO YES Is operation possible when the Is there any thyristor NO NO transmitter is moved fluorescent light nearer to the infrared near by signal receiver of the air conditioner YES Push the START STOP button YES Battery life Dose the Is operation possible transmission when setting the temporary switch of the air conditioner main unit to TEST RUN or TEMPORARY AUTO indicator light NO YES Is there any beep and operation YES NO YES Can any signal tone be heard when transmitting within 5 cm distance from the radio NO YES Remote control P C board is failure is failure Keep the air conditioner away

AIR CONDITIONER - AHI

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