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Samsung AS07A5MA Service Manual

Summary of AS07A5MA

  • Page 1

    Service manual split type air conditioner as07a5(6)ma as09a5(6)maf as12aa(b)mcf indoor unit us07a5(6)ma us09a5(6)maf us12aa(b)mcf outdoor unit e db98-15774a(1) as07as(6)ma sm_e 1/7/04 6:07 pm page 47.

  • Page 2

    As07as(6)ma sm_e 1/7/04 6:07 pm page 1.

  • Page 3: Safety Precautions

    2 the following safety precautions must be taken when using your air conditioner. Warning risk of electric shock. • can cause injury or death. • disconnect all remote electric power supplies before servicing, installing or cleaning. • this must be done by the manufacturer or its service agent or a s...

  • Page 4: Contents

    3 air conditioner split type contents d isassemble and r eassemble 1. Indoor unit 2. Outdoor unit 4 6 t roubleshooting 1. Items to be checked first 2. Abnormal diagnosis by symptom 13 14 a ssembly drawing and p art ’ s l ist 1. Indoor unit 2. Outdoor unit 3. Assembly control in 4. Assembly control o...

  • Page 5: Disassemble and Reassemble

    4 disassemble and reassemble 1 indoor unit stop operation of the air conditioner and remove the power cable before repairing the unit. If you disassemble the heat exchanger, you must pump down at first. No. Part procedure remark front panel 1 1) stop the operation of the air conditioner and block th...

  • Page 6

    5 no. Part procedure remark electrical parts (main pcb) assembly tray drain heat exchanger fan motor and cross fan 2 3 4 5 1) take all the connector of pcb on the upper part. (included power cord) 2) separate the outdoor unit connection wire from the terminal block. 3) if you pull out the main pcb u...

  • Page 7

    6 2 outdoor unit no. Part procedure remark common work fan motor 1 2 1) loosen screws and separate the cover e-part. 2) separate the connection wire from the terminal block. 3) loosen five screws and separate the upper cabinet. 4) loosen the screw of the control box. 5) loosen nine screws and separa...

  • Page 8

    7 no. Part procedure remark compressor heat exchanger 3 4 2) remove the nut flange (turn to the clockwise). 3) separate the fan. 4) loosen four screws to separate the motor. 1) release the refrigerant. 2) loosen two screws of left and right side. 3) disassemble the inlet and outlet pipe by welding. ...

  • Page 9

    8 disassemble and reassemble (cont’d) ΙΙ ■ us12aa(b)mcf no. Part procedure remark common work 1) loosen a screw and separate the cover e-part. 2) separate the connection wire from the terminal block. 3) loosen thirteen screws and separate the front cabinet. 4) loosen a screw of the control box. 5) l...

  • Page 10

    9 no. Part procedure remark fan and motor heat exchanger compressor 2 3 4 1) remove the nut flange (turn to the clockwise). 2) separate the fan. 3) loosen four screws to separate the motor. 4) loosen five screws and separate the motor bracket from the base. 1) release the refrigerant. 2) loosen scre...

  • Page 11: Set Up The Option Code

    10 set up the option code ΙΙΙΙ the method for setting up the model option with the remote control ◆ it is necessary to set up option codes after replacing the main pcb with service parts. Make sure that you can set up option codes of the remote control after replacing the main pba. Otherwise, the un...

  • Page 12

    11 press the button for the “ ” mode and the display will be shown as . Press the button for the “ ” mode and the display will be shown as . Step 3 reconfirming the option set after completing example : 000000-1700b7 7) if the first number is , it is correct. Otherwise, press the button until appear...

  • Page 13

    12 a table of the option code set up the option code (cont’d) ΙΙΙΙ model as07a5ma as07a6ma as09a5maf as09a6maf as12aamcf as12abmcf 010000-1700b7 000000-1700b7 010000-1700fb 000000-1700fb 010000-170340 000000-170340 option code as07as(6)ma sm_e 1/7/04 6:07 pm page 12.

  • Page 14: Troubleshooting

    13 troubleshooting ΙΙΙΙΙΙ 1 items to be checked first 1) the input voltage should be voltage rating within ±10% range. The air conditioner may not operate properly if the voltage is out of this range. 2) is the connection cable linking the indoor unit and the outdoor unit properly? The indoor unit a...

  • Page 15: Troubleshooting (Cont’D)

    14 troubleshooting (cont’d) ΙΙΙΙΙΙ 2 abnormal diagnosis by symptom 1. No power - initial diagnosis 1. No power - initial diagnosis 1) checklist : (1) is input voltage normal? (2) is ac power linked correctly? (3) is output voltage of dc regulator ic ka78l05 (ic02) normal? (4.5vdc-5.5vdc) 2) troubles...

  • Page 16

    15 1) checklist : (1) is ac voltage between “l1” and “1” of outdoor terminal block is normal? (input voltage within ±10% range) if the output is not checked, check “l1” and “1” of indoor terminal block. (2) are connectors linked correctly to the outdoor pcb? (cn71, cn76, cn72, cn11) 2) troubleshooti...

  • Page 17: Troubleshooting (Cont’D)

    16 troubleshooting (cont’d) ΙΙΙΙΙΙ 2. When the indoor unit fan does not operate - initial diagnosis 2. When the indoor unit fan does not operate - initial diagnosis 1) checklist : (1) is the indoor unit fan motor properly connected with the connector (cn72)? (2) is the ac voltage correct? (3) is hal...

  • Page 18

    17 3. When the outdoor unit does not operate - initial diagnosis 3. When the outdoor unit does not operate - initial diagnosis 1) checklist : (1) is input voltage normal? (2) is the set temperature of the remote control higher than room temperature in the cool mode? (3) is the power in connector (cn...

  • Page 19: Troubleshooting (Cont’D)

    18 troubleshooting (cont’d) ΙΙΙΙΙΙ 3-2 us12aa(b)mcf 1) checklist : (1) is led 01(grn) on? (2) are all connectors linked correctly? 2) troubleshooting procedure check the power supply between “l1” and “l2” of the outdoor terminal block is voltage rating between “l1” and “1” ? Is led 01 of the indoor ...

  • Page 20

    19 4. When the up/down louver motor does not operate - initial diagnosis 4. When the up/down louver motor does not operate - initial diagnosis 1) checklist : (1) is input voltage normal? (2) is the up/down louver motor properly connected with the connector (cn61)? 2) troubleshooting procedure remove...

  • Page 21: Troubleshooting (Cont’D)

    20 troubleshooting (cont’d) ΙΙΙΙΙΙ 5. When there is no cool air in the current mode 5. When there is no cool air in the current mode 1) checklist : (1) is the set temperature of the remote control lower than room temperature in the cool mode? (2) is the indoor pcb properly connected with the cn71 co...

  • Page 22

    21 6. When the remote control does not operate 6. When the remote control does not operate 1) troubleshooting procedure remove the power cord and plug it in again approx. Five seconds does std lamp blink? Check as the procedure “no power” refer to page14 normal replace the battery lcd is abnormal. R...

  • Page 23

    22 17 16 14 22 9 7 21 3 4 5 6 19 20 8 12 25 13-4 23 13-3 13-2 13 13-1 11 10 2 1 15 18-1 18-5 18-4 18 18-6 18-6-1 18-2 18-3 24 assembly drawing and part’s list ΙΙΛΛ 1 indoor unit as07as(6)ma sm_e 1/7/04 6:07 pm page 22.

  • Page 24

    23 q’ty ■ part’s list code no. No. Description remark as12aa(b)mcf as09a5(6)maf as07a5(6)ma 1 2 3 4 5 6 7 8 9 10 11 12 13 13-1 13-2 13-3 13-4 14 15 16 17 18 18-1 18-2 18-3 18-4 18-5 18-6 18-6-1 19 20 21 22 23 24 25 db64-00085a db63-00064b db95-00287k db63-00067a db92-00031l db67-00051a db67-00032a d...

  • Page 25

    24 assembly drawing and part’s list (cont’d) ΙΙΛΛ 2 outdoor unit ■ us07a5(6)ma/us09a5(6)maf 1 2 3 4 12 17 17-1 18-1 18 19 23 21 22 20 10 16 14 11 15 13 5 8-2 8-3 8 8-1 8-4 6 7 9 as07as(6)ma sm_e 1/7/04 6:07 pm page 24.

  • Page 26

    25 no. Code no. Description specification ■ part’s list hswr, ip2, 5&3, sc-90073t,375fan 2c, m6, sm20c, ntr as+g/f20%, pi 375, blk ass020zrea, fan out,115v/60hz ass’y ass´y 620mm cond ass´y ass´y ass´y 25µf, 370vac 45µf, 370vac 4.0µf, 450vac v2 p/d (105˚c) 5p, l1, l2, 1, 2, 3 t8, 425, 225, 44f comp ...

  • Page 27

    26 assembly drawing and part’s list (cont’d) ΙΙΛΛ 20 19 4 2 1 9 8 3 8-6 12 14 13 17 16 8-5 15 5 6 22 10 11 18 21 7 25 23 8-13 8-2 8-1 8-11 8-3 8-12 8-8 8-9 8-10 8-14 8-7 8-4 24 ■ us12aa(b)mcf as07as(6)ma sm_e 1/7/04 6:07 pm page 26.

  • Page 28

    27 db63-00385b db60-30020a db67-50063a db31-00242a db90-00633n db90-00687d db61-00887a db93-02588a 2501-001237 2301-001375 db65-40074b db93-00423b db35-00015h db67-60020a db93-02618b db32-00007a db39-00530a db39-20290h db61-01769a db93-02576a db26-10063b db32-10051h db94-00163c db96-03140a db62-0124...

  • Page 29

    28 3 assembly control in ■ part’s list no. 1 2 3 4 5 6 7 8 9 10 11 description holder control ass’y main pcb ass’y terminal block ass’y display pcb connector wire pcb u/d screw holder clamp in seal - panel front rh seal - h/control front label ass’y thermistor code no. As07a5(6)ma / as09a5(6)maf as1...

  • Page 30

    29 4 assembly control out ■ us12aa(b)mcf as07as(6)ma sm_e 1/7/04 6:07 pm page 29.

  • Page 31

    30 ■ part’s list no. 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 description plate-control out c-oil (capacitor) clip-capacitor screw-tapping c-oil(capacitor) terminal-block holder pcb holder-wire screw-tatite screw-tapping screw-special ass’y-lead, wire spring-o.L...

  • Page 32

    Refrigerating cycle block diagram ΛΛ indoor unit outdoor unit heat exchanger (evaporator) gas side 3-way valve 2-way valve liquid side capillary tube gas leak check point cross fan heat exchanger (condenser) propeller fan compressor t 1 t 2 cooling refrigerating cycle temperature and pressure operat...

  • Page 33: Performance Curve

    32 performance curve ΛΛΙΙ ■ as07a5(6)ma total power consumption n n n n o o o o tt tt e e e e data is based on condition of indoor humidity 50%. Air flow should be set at hi. 55 0.4 0.5 0.6 0.7 0.8 0.9 1.0 65 75 85 95 105 115 t otal power consumption (x10 3 kw) outdoor intake air db temperature(°f) ...

  • Page 34

    33 high pressure 55 65 75 85 95 105 115 140 190 240 290 340 390 condensing pressure (psi.G) outdoor ambient db temperature(°f) indoor db temperature(°f) low pressure 55 65 75 85 95 105 115 40 45 50 55 60 65 70 75 80 85 90 suction pressure (psi.G) outdoor ambient db temperature(°f) indoor db temperat...

  • Page 35: Performance Curve (Cont’D)

    Performance curve (cont’d) ΛΛΙΙ 34 suction temperature 55 65 75 85 95 105 115 0 10 20 30 40 50 60 70 80 suction temperature (° f) outdoor ambient db temperature (°f) indoor db temperature (°f) discharge temperature 55 65 75 85 95 105 115 100 120 140 160 180 200 220 240 discharge temperature (° f) ou...

  • Page 36

    35 ■ as09a5(6)maf total power consumption n n n n o o o o tt tt e e e e data is based on condition of indoor humidity 50%. Air flow should be set at hi. 55 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 65 75 85 95 105 115 t otal power consumption (x10 3 kw) outdoor intake air db temperature(°f) indoor intake air ...

  • Page 37: Performance Curve (Cont’D)

    36 performance curve (cont’d) ΛΛΙΙ high pressure 55 65 75 85 95 105 115 140 190 240 290 340 390 condensing pressure (psi.G) outdoor ambient db temperature(°f) indoor db temperature(°f) low pressure 55 65 75 85 95 105 115 40 45 50 55 60 65 70 75 80 85 90 suction pressure (psi.G) outdoor ambient db te...

  • Page 38

    37 suction temperature 55 65 75 85 95 105 115 0 10 20 30 40 50 60 70 80 suction temperature (° f) outdoor ambient db temperature (°f) indoor db temperature (°f) discharge temperature 55 65 75 85 95 105 115 100 120 140 160 180 200 220 240 discharge temperature (° f) outdoor ambient db temperature (°f...

  • Page 39: Performance Curve (Cont’D)

    38 ■ as12aa(b)mcf total power consumption n n n n o o o o tt tt e e e e changes in the dotted box are caused by the rpm change of outdoor fan. 0.9 1.0 1.1 1.2 1.3 1.4 1.5 55 65 75 85 95 105 115 t otal power consumption (x10 3 kw) outdoor intake air db temperature(°f) indoor intake air wb temperature...

  • Page 40

    39 high pressure 170 190 210 230 250 270 290 310 330 350 55 65 75 85 95 105 115 condensing pressure (psi.G) outdoor ambient db temperature(°f) indoor db temperature(°f) low pressure 55 50 55 60 65 70 75 80 85 90 95 100 65 75 85 95 105 115 suction pressure (psi.G) outdoor ambient db temperature(°f) i...

  • Page 41: Performance Curve (Cont’D)

    40 suction temperature 55 0 10 20 30 40 50 60 70 80 65 75 85 95 105 115 suction temperature (° f) outdoor ambient db temperature(°f) indoor db temperature (°f) discharge temperature 55 65 75 85 95 105 115 140 150 160 170 180 190 200 210 220 230 discharge temperature (° f) outdoor ambient db temperat...

  • Page 42: Wiring Diagrams

    41 ■ as07a5(6)ma/as09a5(6)maf/as12aa(b)mcf wiring diagrams ΛΛΙΙΙΙ 1 indoor unit this document can not be used without samsung’s authorization. As07as(6)ma sm_e 1/7/04 6:07 pm page 41.

  • Page 43: Wiring Diagrams (Cont’D)

    42 wiring diagrams (cont’d) ΛΛΙΙΙΙ 2 outdoor unit ■ us07a5(6)ma/us09a5(6)maf this document can not be used without samsung’s authorization. Diagram as07as(6)ma sm_e 1/7/04 6:07 pm page 42.

  • Page 44

    43 this document can not be used without samsung’s authorization. ■ us12aa(b)mcf diagram motor capacitor : 1.5µf x 450vac comp capacitor : 35µf x 450vac as07as(6)ma sm_e 1/7/04 6:07 pm page 43.

  • Page 45: Schematic Diagrams

    44 schematic diagrams ΛΛΙΙΙΙΙΙ this document can not be used without samsung’s authorization. ■ as07a5(6)ma/as09a5(6)maf/as12aa(b)mcf 1 indoor unit cr71 4uf/300v 1.2uf/450v as07a5(6)ma/as09a5(6)maf as12aa(b)mcf 115v/60hz 208v~230v/60hz model input voltage as07as(6)ma sm_e 1/7/04 6:07 pm page 44.

  • Page 46

    45 this document can not be used without samsung’s authorization. ■ us12aa(b)mcf 2 outdoor unit as07as(6)ma sm_e 1/7/04 6:07 pm page 45.

  • Page 47

    Electronics this service manual is a property of samsung electronics co.,ltd. Any unauthorized use of manual can be punished under applicable lnternational and/or domestic law. As07as(6)ma sm_e 1/7/04 6:07 pm page 46.