RAS-07EKH/RAS-07EAH RAS-09EKH/RAS-09EAH
Contents
1. LI co co View 600 2 5 Inlet port 3 Inlet port D i 600 g 100 or more l Viible outline Minimum distance E of the of the wall S iN 4 011 14 Long holes E port For anchor bolt 28 210 o Center Mounting dimension of anchor bolt Fig 2 2 e 3 CAUTION IN INSTALLATION 3 1 Installation of Indoor Unit 3 1 1 Removing the Front Panel 1 Open the screw caps and remove the two screws securing the front panel Open it upward by putting your finger on the edge Fig 3 1 Opening the screw cap 2 Close the screw caps as behind 3 Openthe air outlet direction up down louver hori zontally by hand 4 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 2 Air outlet direction louver 1 Fig 3 2 Removing the front panel Caution When Connecting the Connecting Cable When connecting the connective cable follow the instructions below 1 Remove the front panel Rear plate Screws Rear plate busing Wiring cover Front panel Cord clamp Fig 3 3 Note e Connect the indoor and outdoor units with a connective cable over the shortest distance as possib2. E a a OUTDOOR 1 1 1 1 1 1 1 1 1 OVER LOAD Y RELAY RN amp YEL CHASSIS BLK COLOR IDENTIFICATION 2 BRW BROWN WHI WHITE SOLENOID COIL YEL YELLOW BLU BLUE BLK BLACK j RUNNING GRY GRAY CIA CAPACITOR PNK PINK 5 ORN ORANGE WHI AE GRN amp YEL GREEN 4 COMPRESSOR YELLOW 25 13 5 SPECIFICATIONS OF ELECTRICAL PARTS 5 1 RAS 07EKH RAS 09EKH Indoor Unit Parts name Type Specifications Fan motor For indoor MMF 200 18 2C Output Rated 18W 2 pole 1 phase 220 240V 50 Hz Red Black White Black Winding resistance at 20 C 101 6 209 4 Thermo sensor sensor microporcessor Adjustable range 17 30 Runing for indoor fan motor capacitor EVN40M105UL1 400WV 1uF Transformer TTZ 200 240 1 Primary 200 240V Secondary 15V Microcomputer TMP87CH40N Power relay Common relay G4A 1A Coil 12V 90mA Rated 250V 20A Heat exchanger sensor TC sensor RAS 07EAH Outdoor Un Parts name microprocessor it Type 10 KQ at 25 C Specifications Compressor PH70T1 4C Output Rated 500W 2 pole 1 phase 220 240V 50 Hz Winding resistance Q Red Black White Black at 20 C 4 46 6 55 Fan motor For outdoor UE6 21A5P Output Rated 18W 6
3. Jang Aejay JOJO JOOP NC JoJo Ue 4 Joopu Ae dsiq uBis J3Q 34d Ke dsiq ONOO3 jndino eseud JosseJdujo5 jeu amp is 440 NO eoJnog ASOQ e e 1 indui 209 050 Kouenbai 9203 2 09 41 H ooa H JeAno1 OLNY Dunes YAWIL 440 YINIL NO IH uonoejes peeds ueJ NVA lV3H AHQ IOOO Ol1nV uonosjes uoneJedo dOLS LYVLS uoneJedo Y skey JosseJduJo JO ye Aejaq e e 1 4 041002 NY jpeeyup Janiaoey peJeJju Josueg JUSIIND Josueg Josuas Fig 7 1 _ 16 8 OPERATION DESCRIPTIONS 8 1 Names and Functions of Indicators and Controls on Indoor Unit 8 1 1 Display Panel The operating cond
4. Microcomputer is defective Normal voltage Polarity Polarity value On fan operation 0 5V DC YES 15 any voltage supplied to the fan motor Point for placing the tester bar Normal voltage 5V Pin of IC04 PC board is defective Replace PC board MF capacitor is defective Replace MF capacitor CN13 terminal No CN13 terminal No value On fan operation 120V Check after the fan motor has YES been connected Fan motor is defective 38 9 3 4 Compressor does not operate Indoor fan also does not turn Preliminary checks gt 1 Is the temperature set on the remote control higher than the room temperature in cool operation 2 15 contact of the crossing wiring O K Check procedure Turn the power ON Does the operation lamp flash Does power relay 07 switch due NO Refer to Power cannot be turned on to temperatue adjustment Point for placing the tester bar Normal voltage value Polarity Polarity Condition Pin 6 of RY07 Pin 5 of RYO7 RYO7 ON DC 12V Normal voltage value under power relay ON condition Is 220 230 240V AC supplied between pins 1 and 2 of terminal block Outdoor unit is defective TC normal Is the resistance value of the t
5. YES Refer to the below NO Is 12V AC supplied to the secondary Refer to above Preliminary checks Or there is a defect before the power transformer Power transformer Replace power transformer or the side of the power transformer YES Refer to the figure below is defective PC board Microcomputer is defective eplace the PC board Primary side r Color identification 4 WHI WHITE RED RED CN32 CN33 Transformer PC board MCC 629 Secondary side YEL YELLOW BLU BLUE CNO6 5 Main PC board MCC 639 Fig 9 2 Power transformer connection diagram 37 9 3 2 Relay RY07 RY08 do not Operate Louver is not controlled automatically Turn the power ON NO Does the OPERATION lamp flash gt f See Power cannot be turned YES Replace PC board Relay driver 1002 or C P U 1 01 is defective Note When wiring to the thermal fuse has been broken the timer lamp and operation lamp will flash with 5 Hz 9 3 3 Only the Indoor Fan does not Operate Preliminary checks Does it neither work in COOL or FAN ONLY operation Check procedure gt Turn the power ON NO Does the OPERATION lamp flash f See Power cannot be turned YES Is the photocoupler IC03 normal Point for placing the tester bar
6. S H FILE A10 9508 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS 07EKH HZ 5 09 5 UME SPECIFICATIONS 3 5 NES UII ee ec 6 7 mie 6 2 2 611 7 3 GAUTION IN INSTALLATION a a EEEE 8 12 3 1 Installauon of Indoor Umt E nett A nea 8 32 10 9 9 PIPE Process Sevan 11 4 WIRING DIAGRAM 13 5 SPECIFICATIONS ELECTRICAL PARTS 14 5 1 RAS 07EKH RAS 07EAH Indoor 14 5 2 Outdoor ttn ea tene pe rn n oa Dea 14 5 3 RAS O9EAH Outdoor e eaa 14 6 REFRIGERANT CYCLE DIAGRAM 15 7 MICHO GOMPUTER BLOCK DIAGRAM tc rente to 16 B OPERATION DESCRIPTIONS 17 31 8 1 Names and Fun
7. RY07 OFF 1 Set temp Fig 8 22 AUTO 8 11 1 Louver control 1 When the SET LOUVER button of the remote controller is pushed during the operation the lou ver is automatically set to the desired position 2 When the SET button is pushed the louver verti cally swings within range of 25 3 The louver position is stored in the microcom puter and at the next operation the louvers will be set to the position automatically 27 8 12 HEAT Operation The remote control MODE button is set to the Heat position 1 Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing the START STOP button 2 Relay RY07 RY08 are turned on to energize the outdoor unit and a heat operation is carried out The indoor fan motor operates as shown in Fig 8 23 when FAN SPEED button is set to AUTO The motor operates with a constant air volume as listed in table 8 2 when the FAN SPEED but ton is set to LOW MED or HIGH Set temp LOW 2 1 5 LOW 2 LOW MED MED Fig 8 23 8 12 1 Louver Control 1 When the SET LOUVER button of the remote controller is pushed during the operation the lou ver is automatically set to the desired position 2 When the SET LOUVER button is pushed the louver vertically swings within range of 25 3 The lou
8. In Fig 8 4 all displays are indicated for the sake of clarity During operation only the relevant dis plays will be shown on the remote controller t 8 4 Handling the Remote Controller 8 4 1 Location of the Remote Controller Keep the remote controller where its signals can reach the receiver of the air conditioner a distance of 7m is allowed Fig 8 5 8 4 2 Remote Controller Mounting Fixture A mounting fixture for the remote controller is sup plied with it 1 Installing the mounting fixture Before you actually install the mounting fixture on a wall or the pillar check whether the remote control unit signals from the location where you will install the fixture can be received by the in door unit Fig 8 6 2 Mounting and removing the remote controller To mount hold the remote controller parallel to the mounting fixture and push it in fully To re move slide the remote controller upwards and out from the mounting fixture gogn x C 1 amp Fig 8 7 8 4 3 Replacing Batteries The remote controller uses two alkaline dry batteries LRO3 1 Remove the cover of the battery compartment at the back of the remote controller by sliding it out in the direction of the arrow Remove the used batteries and insert new bat teries 2 Press a coin or the similar object against the unit to reset and perform resetting Then close the rear lid Once the
9. Start operation by using the anti restart timer All LEDs of the operation lamp the timer lamp and the FAN ONLY lamp light up After 3 seconds normal display does not appear 41 Display is defective or defect in the 4P housing assembly Check point Symptom Trouble cause Push the START STOP button once to set in operation mode 1 Setting the anti resistor timer 2 Cooling operation 3 Fan speed AUTO 4 Set the temperature sufficiently lower than the room temperature 5 Continuous operation 1 The compressor does not operate The temperature of the Indoor heat exchange unit is extremely low 2 The operation lamp flashes Defective control PC board Connect the motor connector to MOTOR and turn the power ON Start operation as follows 1 Set the operation mode to FAN ONLY 2 Set the fan speed to HIGH 3 Continuous operation 1 There is a voltage of 120V or more between the red and black motor connector leads Indoor fan motor is defective 2 The motor does not rotate But the key operation of the remote control is accepted Contact of the motor connector is defective 3 Motor rotates but vibrates hard Main PC board is defective 9 5 2 How to Reduce the Operation Time of the Anti restart Timer Drill 2 holes on the rear of the wireless remote control unit Attach the diode 1515
10. The remote controllers MODE button is set to the FAN ONLY position 1 Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing the START STOP button 2 When the FAN SPEED button is set to the AUTO position the indoor fan motor operates as shown in Fig 8 21 When the FAN SPEED button is set to LOW MED or HIGH the motor operates with a constant air volume as listed in Table 8 2 Power relay RY7 is turned off p Room temp Fig 8 21 Auto setting of air volume Table 8 2 Manual setting of FAN SPEED Indication of FAN SPEED LOW LOW Air volume MED MED HIGH HIGH 8 11 COOL Operation The remote controllers MODE button is set to the COOL position 1 Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing the START STOP button 2 Relay RYO7 RYO8 is turned to energize the outdoor unit and a cool operation is carried out The indoor fan motor operates as shown in Fig 8 22 when FAN SPEED button is set to AUTO The motor operates with a constant air volume as listed in Table 8 2 when the FAN SPEED but ton is set to LOW MED or HIGH 2 HIGH 5 bol HIGH MED e LOW 2 9 LOW a LOW Set _ 0 continuous temp _
11. check for disconnection burning or discolora tion of the copper foil pattern or this PC board 3 Checking procedure Procedure Table 9 7 Check point Symptom Trouble cause Disconnect the power plug from the AC outlet and remove the PC board assembly from the electronic parts base Remove the flat cable from the terminal plate Turn the power ON If the operation lamp flash 0 5 sec ON 0 5 sec OFF steps 1 3 in the right column are not necessary Is the fuse blown Application of shock voltage Short circuit of the indoor fan motor Check power supply voltage 1 Between pins 1 and 3 of CNO1 220 230 240V AC Defective power cord power switch fuse or line filter or wrong wiring 2 Between pins 1 and 3 of CNO2 12V AC Defective power transformer 3 Between Q01 emitter and GND 5 DC Defective power circuit or short circuited load 4 Between Q03 emitter and GND 12V DC Defective power circuit or short circuited load 5 Between pin 1 and GND of CN11 12V DC Thermal fuse operation Push the START STOP button once to set in operation mode Do not set to the fan only or on timer mode Check power supply voltage 1 Power relay coil voltage 12V DC pins 5 and 6 of RY7 Relay coil cable is broken relay driver IC181 is defective 2 Between pins 1 and 2 of PF terminals Relay contact is defective PF terminal is defective
12. 2 the drain hose the inner part of the indoor unit and connecting cable in lower part of it 3 Wind the tape round them Indoor unit Connecting Drain hose Installation plate Fig 3 9 2 Left hand connection with piping When the piping runs to the left be sure to use a tool such as a pipe bender to bend the pipe Note If the pipe is bent incorrectly the air conditioner could be raised EET Connection pipes Auxiliary pipes Fig 3 10 1 When the piping runs to the left remove the left side body bushing of the rear panel You may need the body bushing when you relocate the unit so be sure make the customer keep it in a safe place 2 After passing the connection pipe through the pipe hole connect the connection pipe to the auxiliary pipes and wrap covering tape around them 3 For left hand connection with piping bend the pipes as shown in Fig 3 11 Indoor unit external shape Connection pipes 43 mm m Fig 3 11 Note Bend the connection pipe so that the distance between the pipe and the wall be 43 mm or less 3 2 Flaring 3 2 1 Pipe Cutting 1 Cut the pipe little by little advancing the blade of pipe cutter slowly 1 4 Thickness Fig 3 12 Note For fine work do not advance the blade by force in order to prevent distortion of the pipe and ex tra burrs Cut the pipe a little longer than required Fig 3 13 3 2 2 Burr Rem
13. 47 2 50 7920 8430 8530 7850 Power source Single V 220 230 240 Hz 50 Power consumption 740 750 760 670 680 690 Power factor 96 95 94 92 94 92 89 Running current Indor Outdoor 220V 230V 240V 220V 230V 0 19 3 34 0 20 3 27 0 22 3 22 0 19 3 05 10 20 3 03 Starting current A 14 Moisture removal 1 2 Noise Indoor H M L dB 43 36 31 Outdoor 220 230 240V 47 48 49 Refrigerant Name of refrigerant R22 Rated volume 0 67 23 6 Refrigerant control Capillary tube Gas side size 9 52 3 8 Connection type Flare connection Interconnection pipe Liquid side size 6 35 1 4 Connection type Flare connection Maximum length of one way 10 32 8 Maximum height Indoor unit higher 5 16 4 Outdoor unit higher 5 16 4 Condensale drain pipe Outer diameter 16 5 8 INDOOR UNIT 09EKH Dimensions Height 265 10 4 Width 790 31 1 Depth 155 6 1 Net weight 8 17 6 Evaporator type Finned tube Indoor fan type Cross flow fan Air volume High fan 462 274 Medium fan 370 215 Low fan 300 175 Fan motor output Air filter Polypropylene net filter Washable OUTDOOR UNIT 09EAH Dimensions 530 20 9 770
14. All off 36 Indicated when detected abnor mal Check gas quantity Check gas leakage If itis OK check heat exchanger sensor If heat exchanger sensor is OK check overload relay If overload relay is OK check refrigerant cycle If refrigerant cycle is OK check PC board 9 3 Troubleshooting Flowcharts 9 3 1 Power cannot be Turned on No Operation at AII Preliminary checks 1 Is the supply voltage normal 2 Is the connection to the AC output O K 3 Are the connection of the primary side and the secondary side of the power transformer inserted into the PC board Turn the power off for about 5 seconds and then turn it on again NO Does the OPERATION lamp flash NO Is the termal fuse set on YES Does operation start when you press the START STOP button of the remote control Operations Check items Probable main causes Remedies Thermal fuse is defective Remote control is defective Item by symptoms Does the transmission indicator of the remote control blink normally and is the transmission really performed Replace Normal Is the voltage display on the rear panel of the PC board normal 12V DC or 5V DC NO Is 50Hz 220 230 240V AC supplied to the primary side of the power source transformer
15. B TROUBLESHOOTING CHART 32 44 9 1 What to be Rechecked First 32 9 2 Primary Judgement of Trouble 33 9 3 Troubleshooting nen eren n trn ener nin nennen nnn 37 9 5 How to Check the Remote Control Including the Indoor PC 40 96 Board ecrire intendo pace eden anda 43 10 EXPLODED VIEWS AND PARTS LIST etre 45 47 uos NM UAI TEE ED 45 10 2 Outdoor Unii secsi M 47 1 SPECIFICATIONS RAS 07EKH EAH Cooling Heating 230V 240V 220V 230V 1 80 1 82 1 83 1 85 6140 6210 6240 6310 Power source Single V 220 230 240 Hz 50 Power consumption Ww 560 570 580 490 500 510 Power factor 100 100 99 100 100 100 Running current Indor Outdoor 220V 230V 240V 220V 230V 240V 0 19 2 36 0 20 2 28 0 22 2 22 0 19 2 04 0 20 1 97 0 22 1 91 Starting current A 10 Moisture removal 0 8 Noise Indoor H M L dB 43 36 31 Outdoor 220 230 240V 47 48 49 Refr
16. Cancel button CNL Push this button to cancel on timer and off timer A receiving beep is heard Economy button ECONO Push this button to set the economical opera tion mode of the air conditioner A receiving beep is heard TEMP AUTO COOL AUTO 0 2 DRY HIGH d 5 START STOP b ECONO 1 7 SET f l 9 MODE Sl 4 2 09 G w OFF RSV CNL d h TOSHIBA Fig 8 3 18 8 3 Names and Functions of Indicators on Remote Controller a Transmission indicator This transmission indicator lights when remote controller transmits signals to the indoor unit b ON OFF display e Displayed by pushing the START STOP but ton Push the START STOP button again to dis appear c MODE display Displays the current operation mode d TEMP display Displays the temperature setting 17 to 30 When you set the operating mode to FAN ONLY no temperature setting is displayed e ECONO display e Displayed by pushing the ECONO button Push the ECONO button again to disappear r FAN speed display Displays the selected fan speed AUTO and three fan speed levels LOW MED HIGH can be indicated Displays AUTO when the operating mode is either AUTO or DRY g TIMER display The time set for timer operation is indicated Note
17. FAN speed dis Stop START STOP button play will show AUTO and the fan speed will be e Push this button again to stop the air conditioner automatically controlled Table 8 1 Room temperature of operation Operating conditions The set temperature 1 C or higher Cooling operation Performs the cooling operation at a tempera when hot ture 1 C higher than the setting The set temperature 1 to 1 C Fan only operation Performs the fan only oepration low speed while monitoring the room temperature When the room temperature changes the air conditioner will select the cooling or heating mode The set temperature 1 C or lower when Heating operation Performs the heating operation at a tempera cool ture 1 C lower than the setting 21 8 6 Heating Cooling Fan Only Operation 8 6 1 Operation Steps Start The OPERATION lamp green on the display panel of the indoor unit starts flashing 1 Mode button Select HEAT COOL or FAN ONLY 2 TEMP button Push the TEMP button Cooling 21 or higher 3 FAN button Select any of the AUTO LOW and HIGH 4 START STOP button Push this button again to stop the air condi tioner The OPERATION lamp green on the display panel of the indoor unit lights The operating mode is selected in accordance with the room temperature and operation starts after approxi mately 3 minutes If you select FAN ONL
18. cell has been replaced the controller may malfunction Perform resetting ACL accord ingly Be careful not Press a coin or to reverse the the similar object position and the position f 4 out abnormal the normal If the display should turn display may be restored Fig 8 8 Notes When replacing batteries do not use used bat teries or batteries of a different type Such use may cause the remote controller to malfunction f you do not use the remote controller over a long period remove the batteries Otherwise battery leakage may damage the remote control ler The average battery life during normal use is ap proximately one year Replace the batteries when there is no receiving beep from the indoor unit or if the transmission indication lamp on the remote control unit fails to light 20 CAUTIONS The air conditioner will not operate if curtains doors or other materials block the signal from the remote controller to the indoor unit Prevent any liquid from failing into the remote controller Do not expose the remote controller to direct sunlight or heat If the infrared signal receiver at the indoor unit is exposed to direct sunlight the air conditioner may not function properly Use curtains to pre vent the sunlight from falling on the receiver If the room using the air conditioner has fluo rescent lighting with electronic starters signals may n
19. f no receiving sound is heard from the indoor unit push the button twice c Mode select button MODE Push this button to select modes Each time you push the button a mode is selected in a sequence that goes from AUTO COOL DRY HEAT FAN ONLY and back to AUTO A receiving beep is heard d Temperature button TEMP A The set temperature is increased to 30 C W The set temperature is decreased to 17 C A receiving beep is heard E rm f g h i j k 1 Fan speed button FAN e Push this button to select fan speed When you select AUTO the fan speed is au tomatically adjusted according to the room temperature You can also manually select the desired fan speed from three settings A receiving beep is heard Auto louver button AUTO e Push this button to swing the louver A receiving beep is heard Push this button again to stop louver swing ing A receiving beep is heard Set louver button SET To adjust the air flow direction by the wireless REMOTE CONTROLLER during the air con ditioner operation push this button A receiving beep is heard While this button is kept depressed the re ceiving tone continuously sounds Off timer button OFF Push this button to set the OFF timer On timer button ON Push this button to set the ON timer Reserve button RSV e Push this button to reserve timer settings A receiving beep is heard
20. gt Cooling Heating PH70T1 4C RAS 07EAH Rated volume 0 65 kg vale PH94T1 AC RAS 09EAH Rated volume 0 67 kg i MI Heating Cooling Capillary tube RAS 07EAH 7 1 5x1700 2 RAS 09EAH Condenser 1 5x1500 i 00 1 M C lt Propeller fan gt Cooling Outdoor unit ENT gt Heating Mark means check points of Gas Leak Fig 6 1 Table 6 1 Standard pressure Surface temp of heat Fan speed Ambient temp P kg cm G exchanger indoor conditions DB WB interchanging pipe T1 C C Model RAS 07EKH RAS 09EKH RAS 07EKH RAS 09EKH Indoor Outdoor Standard 12 6 14 2 34 5 38 5 High 20 7 6 High temperature 17 1 19 9 19 8 22 8 45 5 52 0 52 0 59 0 Low 27 21 15 Low temperature 10 4 11 9 29 5 34 1 High 20 10 10 Standard 6 5 6 2 12 5 11 4 High 27 19 35 24 High temperature 6 2 6 9 18 5 14 6 High 32 23 43 26 Low temperature 4 6 4 5 3 0 2 4 Low 21 15 21 15 o I o Note Measure the heat exchanger temperature at the center of U bend By means of thermistor thermometer During heating overload the high temperature limit control operation is included 15 7 MICRO COMPUTER BLOCK DIAGRAM A A A JOAUG
21. on when the heating operation is started The PRE DEF lamp comes on during defrost operation and when the indoor heat exchanger temperature is low when the heating operation is started At this time the indoor fan is stopped to prevent cold air from drifting into the room The outdoor fan stops once in a while during the heating operation Whent eh indoor heat exchanger temperature is high the outdoor fan may be stopped by teh high temprature limit control operation When the compressor current is large the outdoor fan may be stopped by teh current control operation 32 9 2 Primary Judgement of Trouble Sources 9 2 1 Role of Indoor Unit Controller The indoor unit controller receives the operation com mands from the remote control and assumes the fol lowing functions 9 2 2 Display of Abnormalities and Judgement of the Abnormal Spots The indoor unit of this machine observes the opera tion condition of the air conditioner and displays the contents of the self diagnosis as block displays on the display panel of the indoor unit Measurement of the draft air temperature of the indoor heat exchanger by using the thermo sen sor TA e Louver motor control Control of the indoor fan motor operation e Control of the LED display e Control of the outdoor unit compressor and the outdoor fan motor Table 9 2 Block display Self diagnosis OPERATION display flashing 1 Hz 1 Hz O
22. 0 up to working check operations of protection circuits for each block and H to check operations of the typical protection circuits 35 Block level Table 9 5 Diagnosis function Block Symptom Air conditioner status Condition Judgement and action Indoor PC board Thermo sensor short break Continued operation Indicated when detected abnor mal Check thermo sensor If itis OK check PC board Around sensor circuit Heat exchanger sensor short break Continued operation Indicated when detected abnor mal Check heat exchanger sensor If itis OK check PC board Around sensor circuit Indoor fan lock abnormality of indoor fan All off Indicated when detected abnor mal Check motor Replace PC board if the same failure occurs after the motor check Abnormality of other indoor unit PC board Continued operation Indicated when detected abnor mal Replace PC board Cable connection Thermal fuse Thermal fuse cut off Indoor fan lock abnormality of indoor fan All off Indicated when detected abnor mal Check thermal fuse If it is OK check motor If motor is OK check PC board 12V power circuit Refrigerant system Gas shortage gas leak Other refriger ant cycle trouble Heat exchanger sensor off break short Overload relay break
23. 30 3 200 7 9 Net weight 29 63 9 Condenser type Finned tube Outdoor fan type Propeller Air flow volume m3 h CFM 1500 890 Fan motor output WwW 18 Compressor PH94T1 4C 750 Safety device Fuse Overload relay Auto louver Yes Usable outdoor temperature range Specifications are subject to change without notice Note 1 Capacity is based on the following temperature conditions JIS C9612 1994 Cooling Heating 27 20 Indoor unit inlet air temperature 19 35 Outdoor unit inlet air temperature Note 2 CHARGELESS No additional refrigerant required 24 This air conditioner accepts a connection piping length of up to 10m and head of up to 5m There is no need to add the refrigerant as long as the total length of the connection piping is up to 10m 2 CONSTRUCTION VIEWS 2 1 Indoor Unit RAS 07EKH Heal exchanger RAS 09EKH Air inlet Air filter Wireless remote controller 9 x Remote controller holder TOSHIBA lt gt Air outlet Single phase 220 240V 50Hz 59 6 790 Hanger Fr
24. 43068419 4306801 1 43069573 43060794 43097195 43069627 43060023 43082263 43060007 43068355 43060025 Holder P C Board Base E Parts P C Board Assembly P C Board Assembly Switch Sensor Heat Exchanger Receiver Infrared Rays Terminal Block Tamper Proof Screw SS Sensor Thermostat Cord Power Screw Driver Thermal Fuse Set P C Board Assembly Trans Lead Assembly Transformer Primary 46 43060026 43033182 43054399 43055412 43033211 43033213 43055284 43032488 43060013 43060778 43060548 43058193 Lead Assembly Transformer Secondary Capacitor Electrolytic Relay Power Capacitor 1 0MFD 400V Capacitor Film Capacitor ECQ UV 0 1MFD 250V Toshiba Non Linear Resistor Posistor 820 Fuse Time Delay Terminal Block Nylon Tie CT Current Trans 10 2 Outdoor unit R 58 5 Part No Description A UEU DRULLU Part No 7 CAPILLARY TUBE Description 1 2 3 4 5 6 7 8 43019769 43020223 43005037 43043548 43062194 43005038 43047491 43046229 43047401 43046228 43147196 43046248 43021928 43047549 43046255 43019727 Guard Fan Fan Propeller Front Cabinet Condenser Cover E Parts Back Cabinet Capillary Tube 1 5DIA Packed Valve 3 8 Bonnet 3 8 Packed Valve 6 35 Bonnet 6 35DIA 4 Way Valve VH7100D Fan Motor UE6 21A5P Flange
25. 55 or equivalent to the rivet inside the unit Push the START STOP button to start operation with the diode attached m PE Wireless remote controller Timer short diode Fig 9 3 9 6 PC Board Layout Top view Bottom view 44 10 1 Indoor Unit No 10 EXPLODED VIEWS AND PARTS LIST 234 Description Part No Description 43005210 43003218 43007963 43007967 43011503 43007964 43019836 43020244 43021990 43007842 43039250 43086989 43006216 43022321 43007098 43007843 43044559 Front Panel EKH Rear Plate Bush Rear Plate Right Lid Rear Plate Pipe Sealed Bush Rear Plate Left Holder Pipe Fan Cross Flow Fan Motor AFP 200 18 2B Latch Motor Band Left Owner s Manual EKH Cover E Parts EK Bearing Cap Screw Bushing Evaporator 45 43047331 43047332 43069858 43021794 43070090 43070140 43009450 43080359 43082271 43063278 43009498 43039251 43080358 43011499 43008691 43019822 43080349 Pipe Delivery Pipe Suction Remote Controller Motor Louver Hose 3M Drain Hose Drain Drain Pan and Grill Air Filter Left Plate Inst Assembly Holder Remote Controller Grille Base Bearing Air Filter Right Pipe Sealed Terminal Cover Holder Sensor Frame Filter Part No Description Part No Description 43063286 43061195 43068418
26. Nut Solenoid Coil Handle 47 43049643 43032441 43019770 43069988 43054400 43054401 43041142 43041564 43055470 43055409 43060049 Rubber Cushion Nipple Drain Stopper Guard Holder OL Relay Relay Overload RAS 07EAH Relay Overload RAS 09EAH Compressor PH70T1 4C RAS 07EAH Compressor PH94T1 4C RAS 09EAH Capacitor Plastic Film 15MFD 400V Capacitor 1 5MHD 400V Terminal Block 5P IOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 01 JAPAN
27. PERATION display flashing 5 Hz 5 Hz 5 Hz Power failure When power is on Thermo sensor TA short break OPERATION display flashing 5 Hz OPERATION display flashing 5 Hz Heat exchanger sensor Tc short break Indoor fan lock abnormality of indoor fan IC03 015 short break OPERATION display flashing 5 Hz Indoor PC board failure OPERATION and TIMER display flashing 5 Hz overheat Thermal fuse is blown Indoor fan motor is OPERATION TIMER and PRE DEF display flashing 5 Hz Gas shortage other refrigerant cycle trouble Heat exchanger sensor operan short Overload relay trouble OPERATION TIMER and PRE DEF display flashing Compressor trouble 1 Judgement from defective operation or abnormal operation Table 9 3 System Check Primary judgement No reaction on remote control operation Turn off the power once turn it on again and try to operate the remote control again Remote control is not possible The indoor part including the remote control is defective Remote control is possible O K The outdoor fan does not rotate The compressor operates The outdoor part is defective outdoor fan motor The compressor does not operate 33 The inside part is defective 2 Self diagnosis with remote controller With the indoor unit controller self diagnosis of protective circuit a
28. Y mode the unit will start immediately Stop START STOP button e Push this button again to stop the air conditioner 2 1 START STOP 4 3 2 SET move eS 1 TIMER OFF RSV CNL TOSHIBA Fig 8 10 Note _ 22 _ The FAN ONLY mode does control tempera ture Therefore perform only steps 1 3 and 4 to select this mode 8 7 Dry Operation 8 8 Timer Operation 8 7 1 Operation Steps 8 8 1 Operation Steps Start The timer reserved time indicates the time remaining The OPERATION lamp green on the display available The time indicated on the remote controller panel of the indoor unit starts flashing changes accordingly 1 Mode button 1 ON or OFF TIMER button Select DRY Push the ON or OFF TIMER buttons as re 2 TEMP button quired Each time the button is pressed the timer setting changes and set time flashes Push the TEMP button The fan speed indicator displays AUTO MU i e The indication changes as follows The indoor fan speed will be automatically se 6540518390540 523 5 lected low 24 Hr 4 START STOP button 2 Reserve button RSV PUSH TIS button the Push this button Check that the TIMER lamp tioner yellow on the display panel of the indoor unit The OPERATION lamp green on the display is lit panel o
29. bed in 1 and 2 1 Current limit control Control is performed as shown below by detect ing the compressor operation current with a cur rent sensor When the value than I2 point continues for 5 minutes the compressor is tuned off When the value than 13 point continues for 3 seconds Set temperature 8 16 Cool Airflow Prevention Control 1 When control is performed with a thermostat and the thermostat is set to off the indoor fan stops operating and restarts at the ultra low speed af ter 2 minutes and 20 seconds E Thermostat ON OFF ON Indoor fan ON JON OFF Fig 8 30 2 When the heat operation starts the indoor fan is A the compressor is tuned off kept off until the indoor heat exchanger tempera 82 Outdoor fan operation ture reaches a set temperature 6 9 12 ae Control is performed according to the air volume Heat changeover position exchanger temperature 33 FanON 25 ON OFF ON Compressor gt lt gt a Outdoor fan _ON OFF ON 20 lt Fan OFF Fig 8 28 2 High temperature limit control Control is performed as shown in Fig 8 29 by detecting the heat exchanger temperature with a heat exchanger sensor TC Heat 60 exchanger temperature 53 52 Compressor ON OFF ON Outdoor fan ON OFF ON Fig 8 29 Fig 8 31 3 As soon as the defrost operati
30. continue until room tempera Airflow fan Flow BETE Flow ture reaches a level at which another mode is U L U L U L U L selected 8 15 1 Temporary Auto Ultra Low When the TEMPORARY switch is set to AUTO the Room temperature T A measurement timing set temperature is fixed at 24 and controlled in ac Time cordance with the chart shown in Fig 8 27 Fig 8 26 zl Cooling mode The same cooling mode as when the room temperature control is is set at set temp 1 5 V The Lover moved MID SUMMER control 2 Cooling mode The same cooling mode as when the room temperature control is is set at set temp 1 E 1 5 Fan only mode Low position E 1 8 Cooling mode The same cooling mode as when the room temperature control is is set at set temp 2 C Fig 8 27 Note Operation is controlled at temperature above independent on the position of the room temperature control 29 8 15 2 Current Limit Control and High tempera ture Limit Control during Heating When the load increases overload or the line volt age drops during operation of the air conditioner the operating current increases and when the power ca pacity is exceeded the circuit breaker is activated This control is performed automatically when the cur rent heat exchanger temperature exceeds a certain value so that it is decreased automatically to prevent overload to the supply Control is performed as de scri
31. ction can be done by turning the remote controller operation into service mode operating the remote controller observing the re mote controller indicators and checking whether OPERATION lamp flashes 5 Hz Note To perform this self diagnosis the remote con troller with the service code of 43069666 is re quired How to select remote controller operation mode 1 Selecting service mode Push the switch button provided on rear bot tom of the wireless remote control with a tip of pencil for more than 3 seconds Make sure the setting temperature is displayed the display and other display is turned off Rear bottom of remote controller Fig 9 1 AN 2 Selecting ordinary mode Push the all clear button ACL on the rear bottom of the wireless remote control with a tip of pencil for more than 3 seconds Make sure the operation mode display wind volume display clock display and setting temperature display are turned on and of the clock display is blinking lt Cautions when doing service gt 1 After completion of servicing always push the all clear ACL button to return the operation mode to the normal mode 2 After completion of servicing by the check code turn off the power once and then turn on the power to reset memorized contents of the microcomputer to the initial status clear button Switch for selecting service mode Rear bottom cover Self
32. ctions of Indicators and Controls on Indoor 17 8 2 Functions on Remote Controller essere nnne nennen nnn 17 8 3 Names and Functions of Indicators on Remote Controller sese 19 8 4 Handling the Remote 19 8 5 Automatic tete tct rel energia eene ate aa SaaS RR dis 21 8 6 Heating Cooling Fan Only Operation sse enne nennen 22 8 7 Diy Operatore eret 23 8 8 limer Operation 1 eet ir tice tnn EE d 23 8 9 JADJUSTING AIR FLOW DIRECTION SNE eot ou cii to neo 25 8 10 ONLY Operation rM 27 m aMEeOONS Tube 27 9 12 HEAT a a 28 8 13 ECONO rare e ra Ea Re RR 28 8 14 DRY Ope rat OM EET 29 8 15 AUTO Op6ratlon 29 8 16 Cool Airflow Prevention 30 8 17 Defrost comente t e rer einen t c n lt ue RR RR da 31
33. diagnosis by check gt 2 Remote control key operation under the ser 1 The self diagnosis by the check codes is con vice mode is conducted by ON OFF or TEMP ducted under the block displays of item B E The remote control display by each key op eration is varied as shown below Two digit number is displayed in a hexadecimal num ber Table 9 4 Operating key Indication after operation ON OFF CN Up 1 is added to data before operation Example TEMP Down 1 is subtracted from data before operat 1 Example AUTO LOUVER Example SET LOUVER Data before operation is directly transferred Example i 3 The self diagnosis by the check codes is con d Operate the TEMP A key and make sure the ducted with procedures shown below remote control display shows 1 and flash a Enter the service mode and make sure the off ing of the operation lamp If the operation lamp connecting cable is working or thermal fuse is b Operate the ON OFF key and make sure the blown timer lamp on the display section is flashing 5 2 At the same time also make sure the tion lamp is also flashing This shows that the In the same way operate the TEMP A key so that the display is increased one by one to continue checks by the self diagnosis as protection circuit on the indoor PC board is shown is the next table From
34. eration remember not to continue the downward air flowing for a long time to avoid conceivable dewing on the louver sur face and resultant dripping trouble e tis also possible to adjust the air flow direction by the remote controller even when the wireless auto louver is in use but once the air conditioner operation was stopped and restarted thereafter the air flowing direction automatically becomes horizontal The air flow cannot be adjusted with the remote controller when the air conditioner is stopped Also when the ON TIMER is indicated on the display 25 8 9 2 Adjusting the Horizontal Air Flow Direction Preparation For the cooling or dry operation move the vertical air flow louver downward using the SET button on the remote controller 1 Take hold of the lever on the horizontal air flow grilles and move them to adjust the air flow direc tion as required Fig 8 18 2 You can adjust the air flow at the left right loca tions of the grilles 3 For the cooling or dry operation return the verti cal air flow louver to the original position using the SET button on the remote controller Fig 8 19 8 9 3 Adjusting the Automatic Swing Air Flow Direction Perform this function while the air conditioner is in operation 1 Push the AUTO button on the remote c
35. f the indoor unit lights and operation Push the button once more and you will be starts after approximately 3 minutes able to confirm the available remaining time Stop START STOP button in the timer e Push this button again to stop the air conditioner 3 Cancel button CNL Push the CNL button to cancel the timer set ting TEMP MODE TEMP AUTO AUTO 3 r C HrON 2 3 1 START STOP ECONO 3 ik J ECONO GFAN Eq 5 START STOP NIAUTO Z SET 7i SET 2 1 TIMER O C QD TIMER ON OFF RSV CNL Q e 3 1 ON OFF RS NL TOSHIBA 2 TOSHIBA Fig 8 11 Fig 8 12 e CAUTION When you select the timer operation the remote controller automatically transmits the timer signal to the indoor unit at the specified time Therefore keep the remote controller in a location from which it can transmit the signal to the indoor unit properly Changing Push the ON or OFF TIMER button once The indication of set time will start flashing Perform steps 1 and 2 to change the set ting 8 8 2 Example of Timer Setting 1 OFF TIMER Operation Stop The OFF TIMER feature is useful when you go to sleep The air conditioner will stop automati cally at the time set Example To turn off the air conditioner 7 hours later 1 Co
36. hermo sensor TA and heat exchanger sensor NO Approximate resistance value of the sensor 10 20 30 20 7 39 is defective Power relay RYO7 is defective 12 6k 7 97k Thermo sensor or heat exchanger sensor is defective Replace TA sensor or TC sensor Replace PC board Replace power relay 9 5 How to Check the Remote Control Including the Indoor Board Push the START STOP F button Does the transmission indicator flash YES Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner Is there direct sunlight on the receptor of the air conditioner There is no reception tone from the receptor The operation lamp of the air conditioner main unit does not light NO Short circuit the metal terminal the side of the bettery compartment all clear terminal with a pencil wait about 10 seconds Is there any thyristor Does the transmission NO fluorescent light near by indicator light YES Battery life Is operation possible when setting the control operation Switch of the air conditioner main unit to COOL or AUTO YES NO Is there any reception tone and operation Can any signal to
37. igerant Name of refrigerant R22 Rated volume 0 65 22 9 Refrigerant control Capillary tube Gas side size 9 52 3 8 Connection type Flare connection Interconnection pipe Liquid side size 6 35 1 4 Connection type Flare connection Maximum length of one way 10 32 8 Maximum height Indoor unit higher 5 16 4 Outdoor unit higher 5 16 4 Condensale drain pipe Outer diameter 16 5 8 INDOOR UNIT 07EKH Dimensions Height 265 10 4 Width 790 31 1 Depth 155 6 1 Net weight 8 17 6 Evaporator type Finned tube Indoor fan type Cross flow fan Air volume High fan 462 274 Medium fan 370 215 Low fan 300 175 Fan motor output Air filter Polypropylene net filter Washable OUTDOOR UNIT 07EAH Dimensions 530 20 9 770 30 3 200 7 9 Net weight 29 63 9 Condenser type Finned tube Outdoor fan type Propeller Air flow volume m3 h 1500 890 Fan motor output 18 70 1 4 500 Safety device Fuse Overload relay Auto louver Yes Usable outdoor temperature range Specifications are subject to change without notice lg RAS 09EKH EAH Cooling Heating 230V 240V 220V 230V 2 30 2 32 2
38. itions are indicated below PRE DEF ECONO TIMER OPERATION O OPERATION lamp green TIMER lamp yellow ECONO lamp green PRE DEF lamp red Fig 8 1 8 1 2 Control Panel Lift the front panel to perform control panel setting 1 Opening the front panel 1 Push the PUSH on both lower corners of the front panel 2 Open the panel You can lift the panel up to an angle where it will remain fixed Do not lift the panel any further when it stops with a clicking sound 2 Closing the front panel 1 Push the PUSH on both lower ends of the front panel 2 Close the panel firmly 3 If the TEMPORARY switch is set to AUTO 1 The air conditioner operates automatically by selecting the cooling dry fan only mode de pending on the room temperature 4 If the TEMPORARY switch is set to COOL 1 The air conditioner operates in the cooling mode at a low fan speed Note f the TEMPORARY switch is set to AUTO or COOL the remote controller is not usable CONTROL AUTO COOL Fig 8 2 8 2 Functions on Remote Controller a Infrared signal emitter Transmits a signal to the indoor unit b START STOP button Push the button to start operation A receiving beep is heard Push the button again to stop operation A receiving beep is heard
39. le Grounding wire Insert the connective cable fully into the termi nal block and secure it by screw tightly Secure the connective cable with the cord clamp Tightening torque should be 1 2 N m 12 kgf cm Cord clamp Wiring cover Screws 9 Connecting cable Cord clamp Fig 3 5 3 1 2 Caution in Mounting the Front Panel When the panel is removed and mounted again fol low the step described below 1 After fastening two screws be sure to hook the inside clicks 1 and 2 of the front panel shown in Fig 3 7 right gap is left between the front panel and the rear plate Push Push p N L JE EI Fig 3 7 Note If cooling dry operation is made without push ing the air outlet dew can be attached on the front panel surface In addition a gap between the front panel and the body will become wider spoiling the appearance 5 Fix the wiring cover rear plate bushing and front panel on the indoor unit Grounding wire Connecting cable 3 1 3 Precautions for Refrigerant Piping 1 Under side connection with piping Slit part PrT up Pipe holder 7 2 ae Rear plate Pipe holder Fig 3 8 1 Cut out the knockout piece from the right below of the rear plate with a knife etc Smooth the cut edge
40. n continues for at most 6 minutes DEFROST LAMP During defrost operation the PRE DEF lamp is on and the indoor and outdoor fans are off The compressor start protection timer is inter locked with the PRE DEF lamp So the PRE DEF lamp is off the fans stop for about 3 minutes after the START STOP button is turned on When the compressor is turned on the PRE DEF lamp comes on After the heat exchanger is preheated to about 30 C or higher the PRE DEF lamp goes off and the indoor fan starts 31 9 TROUBLESHOOTING CHART Troubleshooting Procedures Following details of What to be prechecked first make sure of the basic items When there is no trouble corresponding to above check in detail the faulty parts following How to judge faulty parts by symptoms later 9 1 What to be Prechecked First 9 1 1 Power Supply Voltage The line voltage must be AC 220 230 240V If the line voltage is not within this range this air conditioner may not work normally 9 1 2 Incorrect Cable Connection between Indoor and Outdoor Units The indoor unit is connected to the outdoor unit with 5 cables Make certain that the indoor and outdoor units have been connected properly with terminals assigned the same numbers wired to each other If the connec tors are not connected as specified the outdoor unit will not operate normally It should be noted that if terminals 1 and 3 or terminals 1 and 4 are connec
41. n flaring punch fully 3 3 Pipe Process Points 3 3 1 Pipe Bending 1 Carefully bend by hand Note e Collapsed pipe cause cooling failure Fig 3 18 2 Bend with pipe bender Since the insulation is wound on use the bender by sliding the insula tion to one side or cutting it halfway Fig 3 19 3 The radius of the pipe bend should 100 mm Note e Insufficient tightening causes gas leaks Over tightening results in cracks the flared surface R 100mm CAUTION Do not use the spanner from the beginning of tightening Fig 3 20 When processing 1 4 inch pipe tighten lightly with spanner and then tighten additionally by 90 120 degree with torque wrench and span 10 ner 4 Too small a radius causes collapse of pipe Table 3 2 Tightening torque of flare nut Pipe size 6 35 mm 1 4 9 52 mm 3 8 Standard The distortion ratio torque 15 7 160 29 4 300 must be less than 10 7 Unit kgf cm Fig 3 21 3 3 2 Pipe Connection 1 Connectthe flare pipe close to the air conditioner unit so both faces fit well Note e Forcing to tighten the nut without the center axis coincided causes gas leaks Match centers Flare nut Fig 3 22 2 Use a torque wrench and spanner to tighten or untighten the flare nut Tightening should be done by finger first then use the torque wrench A torque wrench helps to provide adequate torque f
42. ne be heard in YES a transistor radio when NO transmitting within 5cm distance from the radio YES e Keep the air conditioner PC board is failure Avoid direct away from thyrstor sunlight fluorescent light Replace the batteries Remote control is failure Normal Note Replace PC board 40 After battery replacement shortcircuit the metal terminal at the side of the battery compartment all clear terminal with a pencil Replace remote control 9 5 1 How to check the PC board 1 Operating precautions 1 When removing the front panel or the PC board be sure to disconnect the power plug from the AC outlet When removing the PC board hold the edge of the PC board and do not apply force to the parts When connecting or disconnecting the con nectors on the PC board hold the whole hous ing Do not pull at the lead wire 2 The PC board consists of the following 4 parts a Main PC board part Power relay indoor fan motor drive circuit and control circuit C P U and peripheral circuits buzzer drive circuit and buzzer b Light receiving unit Light receiving circuit c Display LED d Switch PC board Wireless control temporary switch 2 Inspection procedures 1 When a PC board is judged to be defective Check the defects of the PC board following the list below
43. ntinue pushing the OFF TIMER button until you get 7 0 2 Push the RSV button Q Hr OFF TIMER Operation 2 ON TIMER Stop Operation The ON TIMER feature is useful when you wake up in the morning or when you return home The air conditioner will automatically start operating at the time set Example To turn on the air conditioner 5 hours later 1 Continue pushing the ON TIMER button un til you get 5 0 2 Push the RSV button 5 0 ON TIMER Operation 24 8 9 ADJUSTING AIR FLOW DIRECTION 8 9 1 Adjustment of Vertical Air Flow Direction 1 When using the wireless auto louver the air flow direction is automatically set to the desired posi tion of the last time adjusted during operation The air flow direction is automatically set to the desired position of the last time adjusted Fig 8 15 2 When you stop operation using the remote con troller the louver is closed As Fig 8 16 3 When setting the air flow direction to your prefer ence hold down the SET LOUVER button of the remote controller and set the air flow in the direc tion you desire 4 During cool and dry operation change the air flow direction within the range indicated When the cooling or dry operation set the louver in the blue zone Fig 8 17 Note n the Cool or Dry op
44. o 5 The airflow fan will operate in the Low position 1H 2H TIME Set temp Room temp Set temp Fig 8 25 28 8 14 DRY Operation The remote controllers MODE button is set to the DRY position 1 In this mode a microprocessor control lowers hu midity while maintaining a constant temperature The microprocessor turns the compressor on and off at regular intervals 4 to 6 minutes on and or off During the compressor off the airflow fan will operate in the ultra low position 2 The compressor and airflow fan will operate in dependent of the temperature control though the pattern of operation depends on the relation be tween room temperature TA and set tempera ture Ts as shown below b Table 8 3 Relation between room temp TA and set temp Ts TA 2 2 gt gt Ts gt The airflow fan will operate in the Low position independent of the position of the airflow setting control 8 15 AUTO Operation The remote controllers MODE button is set to the AUTO position and AUTO display is lit minutes lt Compressor 1 One of the 3 modes Cooling Fan only and Heat ing is selected according to room temperature at Stop Stop Stop Stop which operation is to start as shown in Fig 8 27 The Fan mode will
45. on starts the in door fan stops 30 8 17 Defrost Operation 8 17 1 Condition to Start the Defrost Operation Defrost operation starts when the elapsed time is longer than 40 to 90 minutes whichever specified Note Indoor hcal excanger temperature Tc indoor intel temperature TA When the high temperature limit control opera tion with the outdoor fan OFF is performed for atotal of 90 minutes defrost operation starts and continues for 10 minutes The cumulative operation time is cleared only when the defrost operation is completed 21 P4 VA Cumulative gt compressor 40 minutes 90 minutes operation time Fig 8 32 8 17 2 Defrost Operation Time Control 1 2 The heating operation is performed for at least 40 minutes The maximum defrost operation time is 6 min utes The defrost operation time for the 4th cycle is 10 minutes When the outdoor temperature is very lower however the defrost operation time is 10 minutes minutes minutes minutes minutes 40 40 40 40 r Heating Defrist Heating Defrist Heating Defrist Defrist Max 6 minutes E Fig 8 33 8 17 3 Ending condition at Defrost Operation When the compressor current becomes 5 5A or more during defrost operation the defrost operation stops and the heat operation restarts The current sensor detects the compressor current The defrost opera tio
46. ont panel 222 346 _ 222 155 A 00 392 S MR ATER Hanger Back body Drain hose Connecting pipe 0 47m 0 53m Flare 26 35 Terminal block Connecting pipe 0 37m Flare 29 52 Detail of installing 659 N dimensions of the For stud bolt main unit le Hanger g8 010 346 x For stud bolt 40 or more 26 Minimum distance i 9 15 N to ceiling i z a e a aae zs 170 or more A 2 d M amp 54 inimum z 120 or more i distance to wall Minimum gue eor 0 lt distance to wa EA LC 5 Q2 Loi 3 106 289 106 8 2 965 Center line 7 790 Piping hole Installation Installation plate center line Plate outline Fig 2 1 cum pm 112 8 136 2 2 Outdoor Unit RAS 07EAH RAS 09EAH Detail Drawing 15220 85 600 25 Drain hole Gas side flare 9 52 50 136 R10 SOT N b Ee ere side flare 26 35 NIN 211 14 Hole 26 Hole For fixing the outdoor unit 200 Handle 4 011 14 Long holes 5 For anchor bolt 28 210 11 Fan guard 111 TOSHIBA Electric parts cover 525 530 Access for charging
47. ontroller 2 To stop the function push the AUTO button again 3 Tochange the swing direction push the SET but ton 26 The SET and AUTO buttons will be disabled when the air conditioner is not in operation in cluding when the ON TIMER is set Do not operate the air conditioner for long hours with the air flow direction set downward during the cooling or dry operation Otherwise con densation may occur on the surface of the ver tical louver and cause dew dripping Do not move the vertical louver manually Al ways use the SET button If you move the lou ver manually it may malfunction during opera tion If the louver malfunctions stop the air con ditioner once and restart When the air conditioner is started immediately after it was stopped the vertical louver might not move for 10 seconds or so The angle of the two vertical louvers may dif fer when they move downward and upward PREPARATION When the power plug or cord is connected to EKH AC 220 230 240V 50 Hz outlet the OP ERATION ON lamp starts flashing indicat ing that power has been turned on or that power failure occurred Confirm that the remote control TEMPORARY switch is set to the REMOTE CONTROL posi tion When the remote controllers START STOP button is pushed a receive tone is heard from the main unit and the following operations are carried out 8 10 FAN ONLY Operation
48. or tightening Fig 3 23 NUS RAS 07EKH RAS 07EAH RAS 09EKH RAS 09EAH 4 WIRING DIAGRAM DEREN LOUVER 1 50Hz V MOTOR 220 230 240V INDICATION amp SWITCH erent i 1 _ BRW PARIS j is FUSE 77 C er uH XK 00000 FAN MOTOR FAN MOTOR 25 0213205160708 z m gt puce 9 t VUA viii 90 900 000000 P04 __ O00 _____ _ OOOOOO CN24 CN12 _ CN31 gt 9601 DSA R901 TNR qe CN13 7 z I N H 5 COMMON 3 se GROUND 201 FUSE tHe CN10 RELAY TERMINAL 3 RYO7 T3 15A RGB 4 i A POWER 250V TNR 1 pues l 4 4 RELAY e 61 60 d RUNNING bier CAPACITOR HEAT lt gt PTH i THO SENSOR i THERMO SENSOR TA cNos 0900 099 0000 123 CX X3 gt 2 al I B LU 43 x ro 2 l 23 d 52 INFRARED FOE OS poene MA TRANSFORMER Eod dg TEN i i uci bog bod LET ud p MEME INDOOR 31217 em m e EM ROS RO ROGERUS
49. ot be properly received If you are plan ning to use such florescent lamps consult your local dealer If other electrical appliances react to the re mote control either move these appliances or consult your local dealer OPERATING MODE Once you select the operating mode the operating conditions are saved in the unit s microcomputer memory Thereafter the air conditioner will start operating under the same conditions when you simply push the START STOP button of the remote controller 1 START STOP A 3 ECONO C D 3 8 5 Automatic Operation When you set the air conditioner in AUTO mode it will automatically select cooling or fan only operation depending on the room temperature WAUTO 25 8 5 1 Operation Steps Start The OPERATION lamp green on the display panel of the indoor unit starts flashing 1 Mode button Select AUTO 2 TEMP button Push the TEMP button Normally set it between 21 to 28 3 START STOP button Fig 8 9 TOSHIBA Push this button to start the air conditioner The OPERATION lamp green on the display Note panel of the indoor unit lights The operating If the AUTO mode is uncomfortable you can se mode is selected in accordance with the room lect the desired conditions manually temperature and operation starts after approxi When you select the AUTO mode you do not mately 3 minutes have to set the fan speed The
50. oval 1 Raise burrs with the burr stick or the burr remover EE Hold the flaring end down to prevent burrs from dropping inside pipe Note e Be sure to remove burrs to avoid unevenness on the flare face which will cause gas leaks e Cover the pipe end with a polyethylene bag and on sheet Fig 3 15 3 2 3 Point of Flaring 1 The exact length of pipe protruding from the face of the flare die is determined by the flaring too Ex od Fig 3 16 Note Too long a protrusion of pipe from the flaring tool will result in too long a flare If this happens the flare nut will not tighten and the joint will not seat Too small a protrusion will cause gas leaks CAUTION Too large protrusion of pipe results in impos sible tightening of the flare nut Too small a protrusion of pipe will cause gas leaks due to insufficient flare surface Table 3 1 shows the use of an imperial die and a rigid die Table 3 1 A mm Imperial Rigid 1 4 1 3 0 7 3 8 1 6 1 0 Type of pipe Fine flaring work shows even brightness on the flared surface and uniform thickness of pipe e Unsuccessful flaring work causes gas leaks therefore rework it Uneven Slant Scratch Crack thickness Fig 3 17 The above faulty flaring will cause gas leaks 3 2 4 Finishing Work 1 Fix the pipe firmly on the flare die Match the cen ters of both the flare die and the flaring punch and tighte
51. pole 1 phase 220 240V 50 Hz Winding resistance Q Red Black White Black at 20 C 366 2 368 5 Running capacitor For fan motor EEP2G155HQA104 400V 1 5 Running capacitor For compressor SK 40CMF15UT 400VAC 15uF Solenoid coil LB60012 AC 200 240V Overload relay J MRA99259 9201 5 3 RAS 09EAH Outdoor Unit Parts name Type AC 200 240V Specifications Compressor PH940T1 4C Output Rated 750W 2 pole 1 phase 220 240V 50 Hz Winding resistance Red Black White Black at 20 C 4 53 8 73 Fan motor For outdoor UE6 21A5P Output Rated 18W 6 pole 1 phase 220 240V 50 Hz Winding resistance Red Black White Black at 20 C 366 2 368 5 Running capacitor For fan motor EEP2G155HQA104 400V AC 1 5uF Running capacitor For compressor EAG40M206UF2 400V 15 Solenoid coil LB60012 AC 200 240V Overload relay J MRA99260 9200 AC 200 240V 4 6 REFRIGERANT CYCLE DIAGRAM RAS 07EKH RAS 07EAH RAS 09EKH RAS 09EAH ees NEM Evaporator 6 35 Connecting pipe 9 52 Cooling 0 37m Heating mM Optional piping kits RB P31BEF1 3m RB P51BEF1 5m RB P71BEF1 7m O D 6 35mm VA Packed valve Packed valve lt 69 52 66 35
52. ted together by mistake some copper foil patterns on the control section PC board may be broken Misleading but good operations 9 1 3 Misleading but Good Operations Program Controlled Operation The microcomputer performs the operations listed in Table 9 1 to control the air conditioner If a claim is made on the operation check whether it corresponds to the contents in the Table 9 1 If it does it is an indispensable operation for the control and mainte nance of the air conditioner it is not a failure of the unit Table 9 1 Operation of air conditioner Description When the POWER plug socket of the indoor unit is inserted the OPERATION lamp on the setting indication part flashes The OPERATION lamp flashes indicating that power is turned on If this happens press the START STOP button once to cause the lamp to stop flashing A power outage also causes the lamp to flash Fan speed remains unchanged in teh dry mode Fan speed is fixed at Low in the dry mode Room temperature is in the range under which the compressor is turned off but the compressor will not stop The compressor will not stop while the compressor on hold timer two minute timer is actuated The compressor will not switch on or off even when the thermo control is operated in the dry operation In the dry mode the compressor goes on and off at regular intervals independent of the Thermo control The PRE DEF lamp comes
53. ver position is stored in the microcom puter and at the next operation the louvers will be set to the stored position automatically 4 When a temperature setting is changed during the heating operation or when the room tempera ture becomes close to the temperature setting the vertical louver might close once and then open again 8 12 2 Cool Air Flow Control 1 If the indoor heat exchanger temperature de tected by the indoor heat exchanger sensor is 20 C or below the indoor fan stops and if the temperature rises to 32 C or above the fan is restarted 8 13 ECONO Mode The remote controllers ECONO button is pushed and ECONO display is lit 1 When the ECONO button is pushed the indoor unit operates quietly and mildly with controlling airflow 2 In the ECONO mode the indoor unit will oper ate at set temperature for one hour from starting time and next 1 hour operate at temperature adding 1 C to set temperature and then at tem perature adding 2 C to set temperature since 2 ours ago The airflow fan will operate in the Low position 5 3 42 N 8 5 1 o x Set temp 1H 2H TIME Fig 8 24 4 In the ECONO mode the indoor unit will oper ate at set temperature for one hour from starting time and next 1 hour operate at temperature low ering 1 C to set temperature and then at tem perature lowering 2 C to set temperature since 2 ours ag
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