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Daewoo DSA-100L Service Manual

Manual is about: Split system

Summary of DSA-100L

  • Page 1

    Service manual split system air conditioner model: dsb-090l/dsb-120l dsa-100l/dsa-120l daewoo electronics co., ltd..

  • Page 2: Contents

    Contents 1. Specifications ................................................................................................2 2. Outline and dimensions .................................................................................4 3. Operation ........................................................

  • Page 3: 1. Specifications

    2 1. Specifications model dsb-090l item function cooling class t power ac 220-240v / 50hz capacity w 2,770 btu/h 9,500 dehumidification l /h 2.1 running current a 4.5a power input w 950w starting current a 24a type rotary model rcb 090a001 capacitor 25µf/400vac division indoor unit outdoor unit type...

  • Page 4

    3 model dsb-120l item function cooling class t power ac 220-240v / 50hz capacity w 3,507 btu/h 12,000 dehumidification l /h 2.1 running current a 5.7a power input w 1,250a starting current a 34a type rotary model rcb 120a001 capacitor 25µf / 400vac division indoor unit outdoor unit type cross flow f...

  • Page 5

    4 model dsa-100l item function cooling class t power ac 208-230v / 60hz capacity w 2,923 btu/h 10,000 dehumidification l /h 2.1 running current a 5.1a power input w 1,115w starting current a 27a type rotary model rca 100a001 capacitor 25µf/400vac division indoor unit outdoor unit type cross flow fan...

  • Page 6

    5 model dsa-120l item function cooling class t power ac 208-230v / 60hz capacity w 3,507 btu/h 12,000 dehumidification l /h 2.1 running current a 5.7a power input w 1,250w starting current a 34a type rotary model rca 120a001 capacitor 30µf / 400vac division indoor unit outdoor unit type cross flow f...

  • Page 7: 2. Outline and Dimensions

    6 remocon filter - l filter - r grille insert frame grille body plate mounting connecting pipe plate mounting 406 194 285 925 2. Outline and dimensions 1 indoor unit ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l.

  • Page 8: Outdoor Unit

    7 2 outdoor unit cabinet side handle cabinet front foot 264 334 panel top cabinet back 552 572 inlet air inlet outlet foot cushion service valve 666 ¡ dsb-090l/dsb-120l/dsa-100l/dsa-12ol.

  • Page 9: Parts of Name and Function

    8 1 parts of name and function indoor unit 3. Operation ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l power plug ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,...

  • Page 10: Indoor Unit Display

    9 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,...

  • Page 11: Outdoor Unit

    10 air air inlet (side back) air outlet connection wire connecting pipe drain hose outdoor unit ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l note: how to remove top panel 1. Loosen the screw at left and right side. 2. Push the three parts op front and back sides like figure orderly. 3. Unhook the locking p...

  • Page 12: Name of Each Button

    11 l m h temp. On/off fan dir. Mode fan speed on off enter cancel sleep timer reset temp. A sleep timer auto natural hour off on air conditioner remote controller display displays information pertaining to the unit. The option is left/right direction. Temperature buttons press to raise or lower the ...

  • Page 13: Temp.

    12 l m h temp. A sleep timer auto natural hour off on replacing batteries 3 remote controller display open the cover after pressing the arrow direction and pulling out. Put the drycell by §]§^ direction. Close the cover after pushing into arrow direction. Mode indicators (auto/cool/fan/dehumidifier)...

  • Page 14: Off-Timer

    13 if you set time in off-timer mode, the unit will stop at the set time. If you set time in on-timer mode, the unit will run at the set time. (1) range of setting temperature: 18~32°c (2) setting temperature: operating temperature of compressor if the indoor unit display receive the signal of remot...

  • Page 15: Sleep Mode

    14 (1) when you are going to sleep, select sleep switch and the unit controls the room to the desired temperature. (the unit will not operate after 4 hour) (2) for changing the temperature. Sleep mode 0 0.5 1.0 hour set time desired difference desired temperature between room temperature ( ° c) 0.5 ...

  • Page 16: Emergency Operation

    15 (1) when the remote controller is lost, damaged or the battery is discharged, the emergency operation can be used to run the unit. (2) the setting conditions of emergency operation are as follows. • operation mode: auto • preset temperature: 26°c • discharge air direction: swing (up and down) • f...

  • Page 17: Dehumidification Mode

    16 dehumidification mode air discharge direction(only remocon operation) the air discharge direction procedure is below. Fixed up/down fixed up/down fixed left/right auto mode i (1) when the room temperature is higher than 28 ºc (cooling mode) ! Compressor and lndoor fan @ the fan will automatically...

  • Page 18: Self-Diagnostic Function

    17 ! Fan speed: super high speed @ air discharge direction: fixed # set temperature: 18°c (fixed) $ compressor and outdoor fan the air discharge direction procedure is below fixed up/down fixed up/down fixed left/right ƒr the option is left/right direction. Auto mode ii(powerful cooling) -1 off on (...

  • Page 19: 4. Wiring Diagram

    18 4. Wiring diagram ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l fan motor brn h s capacitor yel compressor red brn fan herm c brn blk blu yellow/green r c r outdoor terminal block blu yellow/green brown indoor terminal block blu yel/grn brn blu brn yel/grn blu power cord pcb trans led pcb 1 1 2 3 comp 1 ...

  • Page 20: Main Electric Parts

    ¡ dsb-090l ¡ dsb-120l 19 indoor unit outdoor unit 1 main electric parts indoor unit outdoor unit part name part code spec. Quantity remark fan motor 3108001200 ic-8428dwkg7a 1 fan motor capacitor 3106900300 1.0uf 400vac 1 fuse 5fvlb3152l 250v 3.15a 1 transformer 5epv050100 220v/18v 1 stepping motor ...

  • Page 21

    ¡ dsa-100l ¡ dsa-120l 20 part name part code spec. Quantity remark fan motor 3108001200 ic-8428dwkg7a 1 fan motor capacitor 3106900300 1.0uf 400vac 1 fuse 5fvlb3152l 250v 3.15a 1 transformer 5epv050100 220v/18v 1 stepping motor 3108000100 mp28ga (l=400mm) 1 terminal block 3108901120 323-hds106 1 com...

  • Page 22: 5. Refrigerant Cycle

    21 5. Refrigerant cycle indoor unit evaporator cross flow fan connecting pipe capillary tube dryer condenser propeller fan outdoor unit refrigerant flow service valve service valve accumulator compressor note) if the pipe length exceeds the standard length, add 30g of refrigerant per extra meter. Ds...

  • Page 23: 6. Control Block Diagram

    22 6. Control block diagram relay k1 stepping motor 1 indoor fan motor compressor outdoor fan motor triac dc12v operating mode fan speed timer selection flap position unit on lamp room air temp. Indoor coil temp. Timer lamp air-clean lamp remoto energency operation signal receiver natural lamp a/d c...

  • Page 24: 7. Electric Circuit Diagram

    23 2 1 3 i.D.C export domestic s r swing motor room air sensor remote controller trans- former k1 comp. Relay triac overload pro- tector compressor outdoor unit fan motor terminal block n l indoor coil sensor display part control part signal receiver fmc cmc y l 1 indoor unit fan motor y l 1 n l 7. ...

  • Page 25: Description

    24 description 1. After the power on/off button is pressed once, the relay and triac are turned on or off per the remote control setpoint. – triac is controlled per the fan speed selection. – relay is controlled per the operation mode selection. 2. If the power on/off button is pressed once more, th...

  • Page 26: 8. Trouble Shooting

    2 8. Trouble shooting outdoor unit does not run?(note. 1) does the compressor run normally? Indoor unit does not run(note 1) check the failure code according to the self diagnostic (note 2) is the unit display mormal? Check the failure code according to the self-diagonostic (note 2) normal check the...

  • Page 27

    5 ble ower to the t e ormal? Age between erminal k er on/off ote controller the eep two s? Splay f? Ector on display o control pcb lay pcb itself check power supply mains or interconnection wires check the wiring of indoor is the switch position on switch pannel at "remote" does control pcb status l...

  • Page 28: Self-Diagnostic Function

    26 note 1) ! Neither indoor unit nor outdoor unit runs. Check the following points first. (there are following case in normal operation) a. Is the timer mode set the "timer on". B. Is the timer mode set the "timer-off" and the time had passed? @ neither outdoor fan nor compressor runs while indoor f...

  • Page 29

    27 confirm following statement. When the unit operate normally, sometimes the outdoor unit and indoor unit cannot operate. ! Check the function select switch. Is it timer mode? @ the function select switch locafe the sleep mode and is the setting time over? # is the setting mode dehumidifier mode? $...

  • Page 30

    28 check rotation of indoor fan rotate indoor fan by hand check input voltage of fan motor connector at power p.C.B check the winding resistance of indoor unit fan motor check the fan motor capacitor check the connecting wire of indoor fan motor run again check the starting of indoor fan motor do er...

  • Page 31

    29 confirm following statement. When the unit operate normally, sometimes the outdoor unit and indoor unit cannot operate. ! Is the setting temperature proper? @ is the unit during 3min. Time delay of compressor. # during frost prevention of lndoor unit. $ during dehumidifier mode. Outdoor fan and c...

  • Page 32: Only Compressor Do Not Run

    30 - check the following at cooling mode check the voltge between and of indoor unit terminal y l check the voltge between and of outdoor unit terminal y l check the magnetic contactor check the wiring of outdoor unit check the compressor (check the winding resistance) check the compressor capacitor...

  • Page 33: Pcb Driving Description

    Pcb driving description.

  • Page 34: Pcb Circuit Diagram

    3 1 pcb circuit diagram cn1 5267-04a 1 2 3 4 5v r2 1 2 12 r1 12.7k 1 2 + c1 10/16 10k 1 2 c4 104 r3 12.7k 12 1 2 + c2 10/16 1 2 r4 10k c5 104 5v 1 2 1 2 c7 104 5v r10 10k r9 10k r8 10k r7 10k 12 1 2 c19 104 u2 65004 12v cn3 b6b-xh-a 9 10 11 12 13 14 15 16 8 7 6 5 4 3 2 1 cn8 35313-0310 1 2 3 fan cap...

  • Page 35

    32 • circuit description ! Temperature sensing @ stepping motor driving # triac driving for dif $ buzzer driving % compressor relay driving ^ ac power supply & power line freqency monitoring input * dc power supply ( led driving ) select switch input 1 reset circuit 2 clock generation 3 rpm sensor i...

  • Page 36: Power Supply(1)

    33 power supply(1) description dc power supply in circuit needs +12v and +5v. +12v is used for compressor driving relay, triac driving photo triac, buzzer driving swing, sweep motor. Ac voltage of secondary power transformer is rectified by bridge diode, and it is filtering by main condensor c9. Fil...

  • Page 37: Sensor(3)

    34 room temperature and evaporator temperature sensor input description number 2, 3 of micom is terminal of a/d convertor input. Room temperature and evaporator temperature is sensing by change of thermister resistance, micom is put in 5v by ratio between r1 (12.7k Ω ) and r2 (12.7k Ω ). Relation be...

  • Page 38: Triac Driving(4)

    35 triac driving(4) description number 38 terminal of micom is put out pulse output, by way of buffer it is driving photo triac tsa3100j is supplied trigger signal. Trigger test of triac is detected zero cross part of ac input and it is triggered from zero cross part to time delay part according to ...

  • Page 39: Remote Controller(5)

    36 description signal from remote controller put in only control data signal at micom terminal of number 44, which is gotten fid of carrier (38khz) from receive module (gp3u77r). Signal wave repeat third as following fig 5-1. But in secondary wave custom code is reversed face. Leader code custom cod...

  • Page 40: Micom Power Supply(7)

    37 description micom power is supplied 5v at number 1 using vdd, number 2 using reference of a/d converter analog and number 1 using reference of a/d converter analog c7 is noise filter micom power supply(7) 64 48 c7 104 vdd 47 46 45 5 1 2 6 7 8 9 10 31 32 micom.

  • Page 41: Reset(8)

    38 description voltage less than about 0.8v put in micom terminal of number 49 and then micom reset. Reset ic detect power on and voltage less than 4.25v, and then send reset signal. Reset(8) micom + 49 c17 4.7/50 u9 7042p r27 5.6k 5v 4.25v h l t t power on vcc (+5v) delay time for power on reset.

  • Page 42: Buzzer Driving(10)

    39 description micom 37 terminal put out buzzer driving pulse, its output is driving buzzer through buffer. Ocillatory frequency of buzzer is selected by internal micom. This unit is setting at 4.1khz. Vcc 12v r15 kid 65004 micom 37 1k 6 11 bz1 buzzer driving(10) description selecting function is as...

  • Page 43: Zero Crossing Detect(11)

    40 description it defect zero cross part of trans output voltage, transistor q1 is used to put in the micom. Detail driving is as following fig 11-1. R19 is resistance to limit current. Micom trans output d5 1 2 d6 1 2 12 r40 10k 1 2 c23 103 q1 krc120m 1 2 1 2 3 2 1 r18 1k 2 1 r19 10k 1 2 vcc 55 det...

  • Page 44: Stepping Motor Driving(12)

    41 description there are one stepping motor for flap (up and down) and it is used 4 face drive method. It is driving as following fig 12-1. (ring count method of 8 status) Ø 4 Ø 3 Ø 2 Ø 1 b+ 6 5 4 3 2 1 12v 5v r8 r9 r10 v2 kid65004 10kx4 r7 cn3 15 micom 16 17 18 m1 for swing mp28ga Ø 4 Ø 3 Ø 2 Ø 1 f...

  • Page 45

    42 (1) selecting the test mode ! When is the off state. @ press the temperature buttons ( ¡ , ¡ª ) at the same time. # all display is on. $ operating test flow press temperature button. ( ¡ª ) (2) test mode cancellation ! After test program is completed. @ if the reset button is pressed. (3) lcd pan...

  • Page 46: A. Lcd Panel Test Flow Chart

    43 a. Lcd panel test flow chart all display on all display off fan speed display on fan dir. (l.R) display on display at the beginning test ok mode display on temp mode display on time display on ts1 on select ¡ª key select ¡ª key select ¡ª key select ¡ª key select ¡ª key select ¡ª key select ¡ª key...

  • Page 47: Temp.

    44 l m h temp. Sleep timer auto natural hour off on a temp. A auto b. Lcd panel test flow @ operating mode display # temperature mode display $ timer mode display % fan speed mode display ! All display on/off ^ fan dir mode display the option is left/right direction. & display at the beginning.

  • Page 48

    45 error no error no error no error no error no no no no yes c. Remote controller assembly functional test method select on/off button select mode button (a ¡ ¡ ¡ ) (whenever you selectted temp. Button, it is changed by 1°c (18~32°c) select fan speed button select fan dir. Button select fan dir. But...

  • Page 49

    46 (0.5~12 hour) error no select timer on button select timer enter button select cancel button select on/off button select off (timer) button select sleep button select sleep button test ok! Is lcd display off? Is it normal display? Timer on is all display off? Is it normal? Sleep mode display on? ...

  • Page 50: (1) U1 (Micom)

    47 (1) u1 (micom) varef function s/w reset curcuit stepping motor driving (left, right) stepping motor driving (up, down) 1 64 vdd vass 2 63 rc3 r40 (ain0) 3 62 rc2 r41 (ain1) 4 61 rc1 temperature sensor input function s/w r42 (ain2) 5 60 rc0 r43 (ain3) 6 59 r92 (sck) r50 (ain4) 7 58 r91 (so) r51 (a...

  • Page 51

    48 (2) u2, 4 (kid65004) darlington arrays (3) u8 (kia7805p) : voltage regulator (5vdc) (4) u7 (kia7812p) : voltage regulator (12vdc) in1 1 16 out 1 in2 2 15 out 2 in 3 3 14 out 3 in 4 4 13 out 4 in5 5 12 out 5 in6 6 11 out 6 in7 7 10 out 7 gnd 8 9 common free wheeling diodes common 10.5k ‰ 7.2k ‰ 3k...

  • Page 52: (5) U9 (Kia7042P) : Reset Ic

    49 (5) u9 (kia7042p) : reset ic (6) u5 (tsa3100j) : photo triac kia70 42p outline input ground output vcc ! # @ out gnd 4 5 1 2 3 1. Ac output (mt2) 2. Ac output (mt1) 3. Gate 4. Dc input (+) 5. Dc input (-).

  • Page 53: Indoor Unit

    50 1 indoor unit procedures photos 1. Stop the air conditioner and disconnect the power cord from the wall outlet. 2. Removing the insert grille and frame grille. (fig 1~2) ! Draw up the insert grille and remove it. @ loosen two special screw for fixing the cover ter-block. # loosen three screw at t...

  • Page 54: Outdoor Unit

    51 2 outdoor unit ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l procedures photos 1.Stop the air conditioner and disconnect the wire from indoor unit to outdoor unit. 2. Dissemble the case. (fig 1~2) ! Remove the top panel. (lossen two screw and remove six hook) @ remove the front cabinet. (loon four screw ...

  • Page 55

    52 3 exploded diagram (indoor unit) ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l.

  • Page 56

    53 ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l parts list(indoor unit) no part code part name q'ty spec remark 1 3100400201 body 1 abs or hips 2 3108001200 motor fcu 1 220v 50/60hz 3 3101500400 cushion motor 2 cr 4 3106400200 bearing plastic ass'y 1 5 3100014400 c.F.F. Ass'y 1 san+g. F20% 6 7485401012 set...

  • Page 57

    54 4 exploded diagram (outdoor unit) ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l.

  • Page 58

    55 ¡ dsb-090l/dsb-120l parts list(outdoor unit) no part code part name q'ty spec remark 1 3100300501 pan base 1 secc 2 3106000900 comp bolt 3 m8 x l46.5 mfzn 3 3102100800 foot 2 secc 4 3108134ae0 grommet 3 epdm 5 3100030ce0 compressor ass'y 1 rcb120a001 b-120l 3100030fe0 rcb090a001 b-090l 6 74002084...

  • Page 59

    56 ¡ dsa-100l/dsa-120l parts list(outdoor unit) no part code part name q'ty spec remark 1 3100300501 pan base 1 secc 2 3106000900 comp bolt 3 m8 x l46.5 mfzn 3 3102100800 foot 2 secc 4 3108134ae0 grommet 3 epdm 5 3100030de0 compressor ass'y 1 rca120a001 a-120l 3100030ee0 rca100a001 a-100l 6 74002084...

  • Page 60: Control Box Assembly

    57 5 control box assembly ^ % $ # ! @ & * h1 h2 h3 h4 s.

  • Page 61: Power Cord Ass’Y

    58 ¡ power cord ass’y buyer part cord remark udeco 3101395030 democo 3101395030 depco 3101395030 daeco 3101395030 dek 3101395030 sherkawi 3101395030 uet 3101395040 deca miami 3101397201 ¡ dsb-090l/dsb-120l/dsa-100l/dsa-120l no part code part name q'ty spec remark 1 3100503101 control box 1 p.P+g.F 2...

  • Page 62

    Deawoo electronics co., ltd 686, ahyeon-dong mapogu, seoul, korea. C.P.O. Box 8003 seoul korea telex: dwelec k28177-8 cable:"daewooelec" fax: +82-2-364-5588 tel: +82-2-360-7114, 8114 http://www.Dwe.Daewoo.Co.Kr s/m no. : dsb090l010 printed date: jul.1998 ser vice manual daewoo electronics co., ltd o...