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Samsung AD18B1C09 Service Manual

Other manuals for AD18B1C09: Owner's Instructions & Installation Manual
Manual is about: MULTI-SPLIT TYPE ROOM AIR CONDITIONER ( Cool and Heat )

Summary of AD18B1C09

  • Page 1

    Service manual contents air conditioner 1. Installation 2. Disassembly and reassembly 3. Troubleshooting 4. Exploded views and parts list 5. Refrigerating cycle block diagrams 6. Wiring diagrams 7. Schematic diagrams room air conditioner indoor unit ad26b1c13 ad18b1c09 outdoor unit ud26b1c2 ud18b1c2...

  • Page 2: 1. Installation

    1 1. Installation 1-1 refrigerant refill procedure indoor a-unit indoor b-unit • piping length and the height additional refrigerant charge (r22,g) • when length of the pipe is over 5u by the unit, you should charge the refrigerant formulas a-unit : 20gx(la-5)/m b-unit : 20gx(lb-5)/m (la:the length ...

  • Page 3

    2 1-2 “pump down” procedure relocation of the air conditioner 1. Carry out the pump down procedure (refer to the details of ‘pump down’). 2. Remove the power cord. 3. Disconnect the assembly cable from the indoor and outdoor units. 4. Remove the flare nut connecting the indoor unit and the pipe. At ...

  • Page 4: 2-1 Indoor Unit

    3 2. Disassembly and reassembly 2-1 indoor unit stop operation of the air conditioner and remove the power cable before repairing the unit. No parts procedure remark front grille 1 1) stop the air conditioner operation and block the main power. 2) separate tape of front panel upper. 3) contract the ...

  • Page 5

    4 no parts procedure remark electrical parts (main pcb) ass’y tray drain. Heat exchanger fan motor and cross fan 2 3 4 5 1) do “1”above. 2) take all the connector of pcb upper side out. (inclusion power cord) 3) separate the outdoor unit connection wire from the terminal block. 4) if pulling the mai...

  • Page 6: 2-2 Outdoor Unit

    5 2-2 outdoor unit no parts procedure remark cabinet fan motor & propeller fan 1) turn off the unit and remove the power cable. 2) remove the top cover. 3) remove the control box cover. 4) unplug the ass'y cable. 5) remove the cabi-side. 6) remove the cabi-front. * when you assemble the parts, check...

  • Page 7: 3. Troubleshooting

    6 1) the input voltage should be rating voltage ±10% range. The airconditioner may not operate properly if the voltage is out of this range. 2) is the link cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 5 cables. Check the ...

  • Page 8

    7 display standard timer nature power (green) x (green) x x (green) (green) x x x x x x x x x x x x x restore from power failure (input initial power) indoor unit room sensor error (open or short) indoor unit heat exchanger temperature sensor error (open or short) indoor fan malfunctioning (for spee...

  • Page 9

    8 3-2 checking and testing operations (outdoor unit) to complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly. 1. Review all the following elements in the installation: • installation site strength • piping connection tightness to...

  • Page 10

    9 4. Check the test operation status by pressing the pcb switch 4. S/w-a and s/w-b of outdoor unit. 4. • check the operation status by pushing the switch one at time. 4. • perform the test operation only for the unit selected last. 4. • check the pipe pressure and the other operation status during t...

  • Page 11

    10 display explanation outdoor sensor error (short/open) outdoor a cond pipe sensor error (short/open) outdoor b cond pipe sensor error (short/open) outdoor c cond pipe sensor error (short/open) a unit test operation error b unit test operation error c unit test operation error a unit test communica...

  • Page 12

    11 3-3 fault diagnosis by symptom 3-3-1 no power (completely dead)-initial diagnosis 1) checklist : (1) is input voltage normal? (2) is ac power linked correctly? (3) is output voltage of dc regulator ic ka7805 (ic02) normal? (4.5vdc-5.5vdc) 2) troubleshooting procedure replace pcb display is dc vol...

  • Page 13

    12 3-3-2 when the power voltage is not available 1) inspection items (1) is the power voltage is normal? (the rating voltage ±10% range) (2) is the power cord is correctly connected and is the contact good? (3) does the sound “ting” come out with the operation lamp (green) flickering when the power ...

  • Page 14

    13 3-3-3 no power (outdoor unit) 1) inspection items (1) Á is the power source normal (the rating voltage ±10% range)? (2) is the outdoor power connected normally? ((1) of terminal : l, (2) of terminal : n, (3) of terminal : communication) ? (3) check whether the display of outdoor pcb(seg1) is show...

  • Page 15

    14 3-3-4 when the fan of indoor unit does not operate 1) inspection items (1) is the power voltage normal? (2) is the connector of indoor fan with the good contact? (cn73) (3) is the soldering status of running condenser (cr71) with the good contact? (4) is connector of the hall ic with the good con...

  • Page 16

    15 3-3-5 when the outdoor unit fan does not operate 1) inspection items (1) the outdoor unit fan motor operates only when the operating conditions are satisfied and is selected by the ry74(low) and py75(hi) to rotate. (2) is the power voltage normal? (3) is the contact of outdoor unit fan motor (cn ...

  • Page 17

    16 3-3-6 when the up/down louver moter 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 power cord and plug in again in approx. 5 seconds. Is operating l...

  • Page 18

    17 3-3-7 if operation by remote control unit is impossible. (initial diagnosis) 1) troubleshooting procedure remove power cord and plug in again approx. 5 seconds is operation lamp blinking? Check as in the procedure “no power parts”. Refer to page 11. Normal replace battery. Lcd is faulty. Replace ...

  • Page 19

    18 3-3-8 when the 4 way valve (a,b) is not operating 1) inspection items (1) are the 4 way valve a and b under the operating conditions? (when the comp a (4 way valve a ) and comp b (4 way valve b) are on during the heating operating) (2) is the power voltage normal? (3) is the connecting of 4 way v...

  • Page 20

    19 3-3-9 when the compressor does not operate 1) inspection items (1) is the comp a under the operating conditions? (cooling operating of a, b(c) room) (2) is the power voltage normal? (the rating voltage ±10% range) (3) are the connector connection of comp a(ry 72, 73) and b(ry 71) good? (4) the co...

  • Page 21: 3-4 Set Up The Model Option

    20 3-4 set up the model option • it is necessary to set up option code after replacing the main-pcb as a service parts. Make sure that you can set up the option of code the remote controller after you replace the main pba otherwise, the unit won’t be working properly and all led lamps on display wil...

  • Page 22

    21 ! If the first number is , it is correct otherwise press until appear. @ when pressing the button ~ appear on the display, select one of them. # when pressing the button ~ appear on the display, select one of them. $ when pressing the button ~ appear on the display, select one of them. % when pre...

  • Page 23

    22 model ad26b1c13 ad18b1c09 option code 015773-100373 015223-10020c db98_05645a(1)_1 5/30/02 7:05 pm page 22 model ad26b1c13 ad18b1c09 option code 015773-100373 015223-10020c db98_05645a(1)_1 5/30/02 7:05 pm page 22.

  • Page 24

    23 m e m o db98_05645a(1)_1 5/30/02 7:05 pm page 23.

  • Page 25: 4-1 Indoor Unit

    24 4. Exploded views and parts list 4-1 indoor unit 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 db98-05645a(1)-2 5/30/02 7:06 pm page 24.

  • Page 26

    25 q’ty ■ parts list code no no. Description remark ad18b1c09 ad26b1c13 1 2 3 4 5 6 7 8 9 10 11 12 13 13-1 13-2 13-3 13-3-1 13-3-2 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 db63-00...

  • Page 27: 4-2 Outdoor Unit

    26 4-2 outdoor unit 4-2-1 ud26b1c2 12 15 8 17 3 4 5 7 6 9(9-1~9-2) 14(14-1~14-4) 2 1 10 13(13-1~13-6) 16(16-1~16-7) 11 db98-05645a(1)-2 5/30/02 7:06 pm page 26.

  • Page 28

    27 q’ty ■ parts list code no no. Description specification remark ud26b1c2 1 2 3 4 5 6 7 8 9 9-1 9-2 10 11 12 13 13-1 13-2 13-3 13-4 13-5 13-6 14 14-1 14-2 14-3 14-3-1 14-4 14-4-1 15 16 16-1 16-2 16-3 16-4 16-5 16-6 16-7 17 db90-00075d db90-20207a db67-50067a db31-00095a db61-20093a db63-30027c db94...

  • Page 29

    28 4-2-2 ud18b1c2 15 16(16-1~16-7) 13(13-1~13-6) 14(14-1~14-4) 9 3 1 10 4 6 5 7 8 2 11 17 12 db98-05645a(1)-2 5/30/02 7:06 pm page 28.

  • Page 30

    29 q’ty ■ parts list code no no. Description specification remark ud18b1c2 1 1-1 2 3 4 5 6 7 8 9 10 11 12 13 13-1 13-2 13-3 13-4 13-5 13-6 14 14-1 14-2 14-3 14-3-1 14-4 14-4-1 15 16 16-1 16-2 16-3 16-4 16-5 16-6 16-7 17 db90-00734a db63-00320a db90-00733a db67-50063a db31-00001a db61-20008c db63-003...

  • Page 31

    30 4-3 ass’y control in (db93-01223a) ■ parts list no 1 2 3 4 5 6 7 8 9 10 11 description holder control ass’y main pcb terminal block assy assy display pcb connector wire pcb u/d holder clamp in seal control side seal h/control front screw machine label core specification db61-00160b db93-00319b db...

  • Page 32

    31 5. Refrigerating cycle block diagram refrigerating cycle temperature and pressure std pressure piping temp.(°f) temp. Condition (°f) operating condition (psi) t1 t2 indoor outdoor 3-way v/v db wb db wb standard 57-71 50-54 50-54 80 67 95 75 cooling max over load - 61-64 61-64 80 67 115 75 low tem...

  • Page 33: 6. Wiring Diagrams

    32 6. Wiring diagrams 6-1 indoor unit db98-05645a(1)-2 5/30/02 7:06 pm page 32.

  • Page 34: 6-2 Outdoor Unit

    33 6-2 outdoor unit db98-05645a(1)-2 5/30/02 7:06 pm page 33.

  • Page 35

    7. Schematic diagrams 7-1 indoor unit ■ as07a5(6)ma / as09a5(6)ma 34 35.

  • Page 36

    37 36 7-2 outdoor unit ■ as07a5(6)ma / as09a5(6)ma.

  • Page 37

    Electronics printed in korea. Db98_05645a(1)-co 5/30/02 7:50 pm page 2.