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7. MICRO-COMPUTER BLOCK DIAGRAM

Fig. 7-1

Louver Direction Setting

07EK.09EK : 50Hz

AC 220/230/240V

Thermo. sensor

Infrared Signal Receiver

Heat Exchanger Sensor

Infraed

Rays

Clock Frequency

Oscillator Circuit

Operation Mode Selection

AUTO,COOL,DRY

FAN ONLY

Thermo Setting

Fan Speed Selection

ECONO.

Initializing Circuit

Operation

(START/STOP)

Main Unit Control Panel

Functions

Louver Control

3-mi

nut

Delay at

Rest

art

for Compressor

Motor Revolution Control

Processing (Temperature

Processing)

Timer

C.P.U.

50Hz input

DC5V

Operation Display

Compressor

ON/OFF Signal

Phase Output

Timer Display

FAN-ONLY Display

Indoor Fan Motor

Compressor

Louver Motor

Power Re

lay

Relay Driver

Louver Driver

Power Source

Transformer

Louver AUTO Swing

OFF TIMER Setting

ON TIMER Setting

ECONO Sign Display

Power Photocoupler

Outdoor Fan Motor

Remote Control

Содержание Carrier RAS-09EA Series

Страница 1: ...SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE FILE NO A10 9507 PRINTED IN JAPAN Jan 1996 S RAS 07EK RAS 07EA RAS 09EK RAS 09EA TOSHIBA ...

Страница 2: ...es and Functions of Indicators on Remote Controller 18 8 4 Handling the Remote Controller 18 8 5 Automatic Operation 20 8 6 Cooling Fan Only Operation 21 8 7 Dry Operation 22 8 8 Timer Operation 22 8 9 ADJUSTING AIR FLOW DIRECTION 24 8 10 FAN ONLY Operation 26 8 11 COOL Operation 26 8 12 ECONO Mode 27 8 13 DRY Operation 27 8 14 AUTO Operation 28 9 TROUBLESHOOTING CHART 29 41 9 1 What to be Recheck...

Страница 3: ... CFM m3 h CFM W RAS mm in mm in mm in kg lbs m3 h CFM W W C RAS 07EK EA Single 220 230 240 50 0 51 0 52 0 53 95 94 93 10 0 8 43 36 31 45 46 46 R22 0 50 17 6 Capillary tube 9 52 3 8 Flare connection 6 35 1 4 Flare connection 10 32 8 5 16 4 5 16 4 16 5 8 07EK 265 10 4 790 31 1 155 6 1 8 17 6 Finned tube Cross flow fan 460 270 370 215 300 175 18 07EA 530 20 9 770 30 3 200 7 9 26 57 3 Finned tube Prop...

Страница 4: ... air temperature JIS C9612 1994 Cooling 27 C 19 C 35 C 24 C DB WB DB WB Note 2 CHARGELESS No additional refrigerant required This air conditioner accepts a connection piping length of up to 10m and a 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 ...

Страница 5: ...9 52 Front panel Back body 155 Wireless remote controller Remote controller holder 55 136 16 59 6 5 112 8 ø8 ø10 659 450 344 44 3 20 21 265 231 40 30 40 30 2 ø65 120 or more Minimum distance to wall Piping hole Detail of installing dimensions of the main unit Hanger 40 or more Minimum distance to ceiling 106 Center line Installation plate center line Installation plate outline 790 289 106 distance...

Страница 6: ...0 268 111 770 59 89 TOSHIBA 200 5 11 Electric 250 Ground A 600 R10 36 50 230 216 25 2 ø6 Hole ø11x14 Hole Detail Drawing A View Z Z 54 62 25 5 22 5 111 119 114 Access for connector charging 120 parts cover Mounting dimension of anchor bolt 600 230 Inlet port 100 or more 400 or more Outlet port Center port For anchor bolt ø8 ø10 4 ø11x14 Long holes Visible outline of the product 600 or more Minimum...

Страница 7: ...ri 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 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 Fig 3 3 4 3 2 1 1 2 4 Air outlet direction louver Open it upward by putt...

Страница 8: ... 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 3 1 3 Precautions for Refrigerant Piping 1 Under side connection with piping Fig 3 8 1 Cut out the knockout piece from the right below of the rear plate with a knife etc Smooth the ...

Страница 9: ...g tape around them 3 For left hand connection with piping bend the pipes as shown in Fig 3 11 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 Fig 3 12 Note For fine work do not advance the blade by force in order to prevent distortion o...

Страница 10: ...erefore rework it 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 tighten flaring punch fully 3 3 Pipe Process Points 3 3 1 Pipe Bending 1 Carefully bend by hand Note Collapsed pipe cause cooling failure Fig 3 18 2 Bend with pipe bender Since the insulation is wound...

Страница 11: ...flare pipe close to the air conditioner unit so both faces fit well Note Forcing to tighten the nut without the center axis coincided causes gas leaks 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 for tightening Fig 3 23 Note Insufficient tighteni...

Страница 12: ... GRY RED RUNNING CAPACITOR PTH TH01 FAN MOTOR THERMAL PROTECTER 90 C CN17 3 1 2 3 1 2 RED BLK WHI 3 1 2 3 1 2 PJ18 CN01 INFRARED RAY RECEIVE PARTS THERMO SENSOR TA CN03 HEAT EXCHANGER SENSOR TC CN06 CN05 CN13 CN10 COLOR IDENTIFICATION BRW BROWN RED RED WHI WHITE YEL YELLOW BLU BLUE BLK BLACK GRY GRAY PNK PINK ORN ORANGE GRN YEL GREEN YELLOW INDOOR TERMINAL BLOCK BRW BLU GRN YEL 1 50Hz 220 230 240V...

Страница 13: ...essor for outdoor fan motor Red Black 3 44 White Black 6 18 Red Black 101 6 White Black 209 4 Red Black 366 2 White Black 368 5 No 1 2 3 4 5 6 7 8 9 10 Parts name Compressor Fan motor For indoor Fan motor For outdoor Overcurrent relay Thermo sensor TA sensor Transformer Microcomputer Power relay Heat exchanger sensor TC sensor Type PH94T1 4C AF 200 18 2C 1 UE6 21A5P J MRA99260 9200 microporcessor ...

Страница 14: ...ermometer Fig 6 1 Table 6 1 50Hz Standard pressure P1 kg cm2G 5 7 6 5 3 5 Capillary tube 1 5x1500 0 37m 9 52 3 8 in Mark means check points of Gas Leak TI T2 Pressure check Gauge port Air purge here Auxiliary pipe Compressor Condenser Dryer Indoor unit Evaporator Cross flow fan Optional piping kits RB P31BEF1 3m RB P51BEF1 5m RB P71BEF1 7m Propeller fan Outdoor unit PH70T1 4C P1 Gas container conn...

Страница 15: ...it Operation START STOP Main Unit Control Panel Functions Louver Control 3 minute Delay at Restart for Compressor Motor Revolution Control Processing Temperature Processing Timer C P U 50Hz input DC5V Operation Display Compressor ON OFF Signal Phase Output Timer Display FAN ONLY Display Indoor Fan Motor Compressor Louver Motor Power Relay Relay Driver Louver Driver Power Source Transformer Louver ...

Страница 16: ... to COOL 1 The air conditioner operates in the cooling mode at a low fan speed Note If the TEMPORARY switch is set to AUTO or COOL the remote controller is not usable FAN ONLY ECONO TIMER OPERATION OPERATION lamp green TIMER lamp yellow ECONO lamp green FAN ONLY lamp red REMOTE CONTROL TEMPORARY AUTO TEST RUN COOL Fig 8 2 8 2 Functions on Remote Controller a Infrared signal emitter Transmits a sig...

Страница 17: ...con ditioner operation push this button A receiving beep is heard While this button is kept depressed the re ceiving tone continuously sounds h Off timer button OFF Push this button to set the OFF timer i On timer button ON Push this button to set the ON timer j Reserve button RSV Push this button to reserve timer settings A receiving beep is heard k Cancel button CNL Push this button to cancel on...

Страница 18: ... 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 Fig 8 4 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 mou...

Страница 19: ...ere is no receiving beep from the indoor unit or if the transmission indication lamp on the remote control unit fails to light 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 th...

Страница 20: ...reen 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 Stop START STOP button Push this button again to stop the air conditioner Table 8 1 Fig 8 9 Note If the AUTO mode is uncomfortable you can se lect the desired conditions manually When you select the AUTO mode you do not have ...

Страница 21: ...his button again to stop the air condi tioner The OPERATION lamp green on the display panel of the indoor unit lights Operation starts after approximately 3 minutes If you select FAN ONLY mode the unit will start immedi ately Stop START STOP button Push this button again to stop the air conditioner Fig 8 10 Note The FAN ONLY mode does not control tempera ture Therefore perform only steps 1 3 and 4...

Страница 22: ...tion Steps The timer reserved time indicates the time remaining available The time indicated on the remote controller changes accordingly 1 ON or OFF TIMER button Push the ON or OFF TIMER buttons as re quired Each time the button is pressed the timer setting changes and set time flashes The indication changes as follows 0 5 1 0 1 5 2 0 3 0 23 24 Hr 2 Reserve button RSV Push this button Check that ...

Страница 23: ...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 Fig 8 14 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 condi...

Страница 24: ...icated Fig 8 17 Note In the Cool or Dry operation 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 It is 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...

Страница 25: ...controller 2 To stop the function push the AUTO button again 3 To change the swing direction push the SET but ton Fig 8 20 CAUTIONS 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 dens...

Страница 26: ...able 8 2 Power relay RY7 is turned off Fig 8 21 Auto setting of air volume Table 8 2 Manual setting of FAN SPEED 8 11 COOL Operation The remote controller s 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 RY07 RY08 are turned ...

Страница 27: ...nt temperature 2 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 3 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 sho...

Страница 28: ...era tion is to start as shown in Fig 8 25 The Fan mode will continue until room temperature reaches a level at which another mode is selected Fig 8 25 Cooling mode the same cooling mode as when the room temperature control is set at Ts 1 C The louver moved MID SUMMER control Dry mode the same dry operation as when the room temperature control is set at Ts C Ts 4 Ts 1 Room temperature Ts Thermo set...

Страница 29: ... If it does it is an indispensable operation for the control and maintenance of the air conditioner but not a failure of the units Operations which are not Deemed Trouble Table 9 1 Operation of air conditioner When the POWER plug socket of the indoor unit is inserted the OPERATION lamp flashes Room temperature is in the range under which the compressor is turned on but the compressor will not star...

Страница 30: ...PERATION display flashing 5 Hz OPERATION display flashing 5 Hz OPERATION and TIMER display flashing 5 Hz OPERATION TIMER and FAN ONLY display flashing 5 Hz Check code Self diagnosis Power failure When power is on Thermo sensor TA short break Heat exchanger sensor TC short break Indoor fan lock abnormality of indoor fan IC03 D15 short break Indoor PC board failure Thermal fuse is blown Indoor fan m...

Страница 31: ...e setting temperature is displayed on the display and other display is turned off 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 Cautions when...

Страница 32: ...des is con ducted with procedures shown below a Enter the service mode and make sure the off timer display of the remote control shows b Operate the ON OFF key and make sure the timer lamp on the display section is flashing 5 Hz c At the same time also make sure the opera tion lamp is also flashing This shows that the protection circuit on the indoor PC board is working d Operate the TEMP key and ...

Страница 33: ...riger ant cycle trouble Heat exchanger sensor off break short Overload relay break Air conditioner status Continued operation Continued operation All off Continued operation All off All off Diagnosis function Judgement and action Check thermo sensor If it is OK check PC board Around sensor circuit Check heat exchanger sensor If it is OK check PC board Around sensor circuit Check motor Replace PC b...

Страница 34: ...ontrol blink normally and is the transmission really performed Is 12V AC supplied to the secondary side of the power transformer Remote control is defective Replace YES NO Power transformer is defective YES Microcomputer is defective Refer to above Preliminary checks Or there is a defect before the power transformer Replace power transformer or the PC board Replace the PC board YES YES Refer to th...

Страница 35: ...See Power cannot be turned on YES NO Turn the power ON Does the OPERATION lamp flash Is the photocoupler IC03 normal See Power cannot be turned on Is any voltage supplied to the fan motor Microcomputer is defective PC board is defective Replace MF capacitor is defective Fan motor is defective Replace MF capacitor Replace PC board Point for placing the tester bar Polarity Polarity Pin 3 of IC04 5V ...

Страница 36: ...the PC Board and List of Voltage Values The test points TP are indicated on the rear of the PC board The voltage values on the test points for defect diagnosis items are listed below Does power relay RY7 switch due to temperatue adjustment Replace TA sensor or TC sensor Does the OPERATION lamp flash Is the resistance value of the thermo sensor TA and heat exchanger sensor TC normal Is 220 230 240V...

Страница 37: ... or AUTO Can any signal tone be heard in a transistor radio when transmitting within 5cm distance from the radio Avoid direct sunlight NO NO PC board is failure Battery life Push the all clear button ACL on the wireless remote control with a tip of pencil for more than 3 seconds Does the transmission indicator light Is there any reception tone and operation Replace the batteries Remote control is ...

Страница 38: ...rminal plate Remove the motor connector from MOTOR 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 Push the START STOP button once to set in operation mode Do not set to the fan only or on timer mode Start operation by using the anti restart timer Trouble cause Application of shock voltage Short circuit of the indoor fan motor De...

Страница 39: ...point Symptom 1 The compressor does not operate 2 The operation lamp flashes 1 There is a voltage of 120V or more between the red and black motor connector leads 2 The motor does not rotate But the key operation of the remote control is accepted 3 Motor rotates but vibrates hard Table 9 8 Approximate value of the sensor thermistor resistance TA TC 0 C 35 8 10 C 20 7 20 C 12 6 30 C 7 97 Thermo Sens...

Страница 40: ... 40 9 6 PC Board Layout Top view ...

Страница 41: ... 41 Bottom view ...

Страница 42: ... Evaporator 201 43005209 Front Panel 202 43003218 Rear Plate 203 43007963 Bush Rear Plate Right 204 43007967 Lid Rear Plate 205 43011503 Pipe Sealed 206 43007964 Bush Rear Plate Left 207 43019836 Holder Pipe 208 43020244 Fan Cross Flow 209 43021990 Fan Motor AFP 200 18 2B 210 43007842 Latch 211 43039250 Motor Band Left 212 43086837 Owner s Manual 213 43006216 Cover E Parts EK 214 43022321 Bearing ...

Страница 43: ...0023 Cord Power 411 43082263 Screw Driver 412 43060007 Thermal Fuse Set 413 43068355 P C Board Assembly Trans 414 43060025 Lead Assembly Transformer Primary 415 43060026 Lead Assembly Transformer Secondary 416 43033182 Capacitor Electrolytic 417 43054399 Relay Power 418 43055412 Capacitor 1 0MFD 400V 419 43033211 Capacitor Film 420 43033213 Capacitor ECQ UV 0 1MFD 250V 421 43055284 Toshiba Non Lin...

Страница 44: ...0 Relay Over Load 9 43054401 Relay Over Load 10 43060993 Terminal Block 3P 11 43055458 Capacitor 1 2µF 450V 12 43055470 Capacitor Plastic Film 15MFD 400V 13 43021928 Fan Motor UE6 21A5P 14 43020227 Condenser 14 43020228 Condenser 15 43046228 Packed valve 6 35 16 43046229 Packed valve 3 8 17 43147196 Bonnet 6 35 DIA 18 43047401 Bonnet 3 8 19 43045073 Dryer 20 43047491 Capillary Tube 1 5 DIA 21 4306...

Страница 45: ... 45 MEMO ...

Страница 46: ... 46 MEMO ...

Страница 47: ... 47 MEMO ...

Страница 48: ... 48 ...

Страница 49: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 01 JAPAN ...

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