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Daewoo DSA-240L-R Service Manual

Summary of DSA-240L-R

  • Page 1

    Manual de servicio acondicionador de aire tipo split modelo: dsa-240l-r.

  • Page 2: Contents

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

  • Page 3: 1. Specifications

    2 1. Specifications model dsa-240l-r item function cooling class t power ac 220v/ 60hz capacity w 7,030 btu/h 24,000 dehumidification l/h 3.2 running current a 11.7 power input w 2,500 type recipro model awg5530exc capacitor 45µf/ 400vac division indoor unit outdoor unit type cross flow fan propelle...

  • Page 4

    3 model dsa-240lh-r item function cooling & heating class t power ac 220v/ 60hz capacity w 7,030 btu/h 24,000 dehumidification l/h 2.67 running current a 11.5 / 11.8 power input w 2,500 / 2,550 type recipro model awg5530exc capacitor 45µf/ 400vac division indoor unit outdoor unit type cross flow fan...

  • Page 5: 2. Outline And Dimensions

    4 75 0 pla te m ou ntin g r em o c o n c on ne ctin g p ipe g rille in se rt 17 4 24 5 r em o te c o n tr o ll er fra m e g rille bo dy pla te m ou ntin g 2. Outline and dimensions 1 indoor unit * dsa-240l-r/lh-r.

  • Page 6: Outdoor Unit

    5 inle t 380 699 323 fo ot s er vic e v alv e 87 3 c ab in et fro nt s er vic e c ov er c ab in et s id e * dsa-240l-r/lh-r 2 outdoor unit.

  • Page 7: Parts of Name and Function

    6 1 parts of name and function 3. Operation * dsa-240l-r/lh-r ■ remote control signal receiver this place is the part to receive the signal if it receive the signal, you can hear the signal “beep. “beep, beep.” ■ there is a switch panel at inside of front panel. At the time of operating, open the fr...

  • Page 8

    7 * dsa-240l-r/lh-r air inlet air outlet connection pipe connection wire drain hose.

  • Page 9: Name of Each Button

    8 name of each button 2 remote controller * dsa-240l-r mode sleep on/off timer enter/ cancel fan speed turbo/mild display displays information pertaining to unit. Turbo/mild press to be colder the unit. Timer enter/cancel button press to enter a timer setting or to cancel timer setting timer on/off ...

  • Page 10: Name of Each Button

    9 name of each button * dsa-240lh-r mode sleep on/off timer enter/ cancel fan speed turbo/mild display displays information pertaining to unit. Turbo/mild press to be colder the unit. Timer enter/cancel button press to enter a timer setting or to cancel timer setting timer on/off button press to set...

  • Page 11

    10 repla cing ba tteries 3 r e m o te c o n tr o lle r d i s p la y open the cover after pressing the arrow direction and pulling out. Put the drycell by +. - direction. Close the cover after pushing into arrow direction. 1 2 3 r em o te c o n tr o ll er + Ð + Ð r em o te c o n tr o ll er * dsa -2 4...

  • Page 12

    11 repla cing ba tteries open the cover after pressing the arrow direction and pulling out. Put the drycell by +, - direction. Close the cover after pushing into arrow direction. 1 2 3 r em o te c o n tr o ll er + Ð + Ð r em o te c o n tr o ll er * dsa -2 4 0 lh -r mode indicators (auto/quick/cool/f...

  • Page 13: Off-Timer

    12 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 14: Fan Speed (Indoor Unit)

    13 fan speed (indoor unit) (1) motor speed (high speed, midium speed, low speed). (2) remote controller setting fan speed. (auto, l, m, h, natural) (3) relation of operating mode between fan speed. (legned: x-no relation) (4) automatic operation if the unit is set in 'auto' mode, the unit operates a...

  • Page 15

    14 (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: quick preset temperature:18c: cooling, 32c: heating) fan speed: high you cannot oper...

  • Page 16: Auto Mode

    15 auto mode (1) in auto mode after the indoor fan is operated for 20 seconds in the auto mode the unit will operate automatically by selecting operating mode according to the room temperature 3 min. Time delay of compressor in normal operation, there is a time delay of three minutes between turn of...

  • Page 17

    16 1) cooling mode when the room temperature is higher than 22c fan speed: high speed air discharge direction: fixed set temperature: 18c (fixed) the air discharge direction procedure is below fixed up/down up/down fixed the option is left/right direction. 1) heating mode when the room temperature i...

  • Page 18: 4. Wiring Diagram

    17 4. Wiring diagram * dsa-240l-r y n l y n l fa n m ot o r bl k re d o rg h s s r c c ca pa cit o r d ua l fa n he rm re d br n br n o u t d o o r in d o o r re d po w er r el ay ra th . : r o o m a ir th er m is to r id c t h. : in do o r c o il t he rm is to r ra th . : r o o m a ir th er m is to...

  • Page 19

    18 * dsa-240lh-r b lk b lk 2 1 y n l b lk b lk in d o o r t e r m d n a l b lo c k b lk b lk 4 w ay p c b t r a n s c n 2 c n 6 c n 3 c n 11 c n 13 c o n t r o l p c b o u t d o o r in d o o r c n 10 c n 4 c n 3 w h t w h t w h t r e d re d dg r br n r e d r e d r a t h id c t h . C o m p rl 1 rl 2 ...

  • Page 20: Main Electric Parts

    19 1 main electric parts * dsa-240l-r part name part code spec. Quantity remark fan motor 3108007500 ic-9430dwkg7a 1 fan motor capacitor 3106902400 2.0uf 400vac 1 fuse 5fvlb3152l 250v 3.15a 1 transformer 5epv050120 230v/50hz 1 stepping motor 3108007600 gsp-24rw-062 1 terminal block 3108912320 sn-dbw...

  • Page 21: 5. Refrigerant Cycle

    20 5. Refrigerant cycle note) if the pipe length exceeds the standard length, add 30g of refrigerant per extra meter. Contents model name capillary tube cool heat charge quantity dsa-240lh-r idØ2.0 x odØ3.2 x 600l idØ2.0 x odØ3.2 x 300l 2,200 g.

  • Page 22: 6. Control Block Diagram

    21 6. Control block diagram relay rl1 stepping motor 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. Air clean lamp quick lamp remote emergency operation signal receiver timer lamp a/d conv...

  • Page 23

    22 relay rl1 indoor fan motor compressor relay rl2 outdoor fan motor relay rl3 4 way valve triac dc12v operating mode fan speed timer selection flap position unit on lamp room air temp. Indoor coil temp. Outdoor coil temp air clean lamp quick lamp remote emergency operation signal receiver timer lam...

  • Page 24: 7. Electric Circuit Diagram

    23 2 1 3 i.D.C s r swing motor room air sensor remote controller trans- former rl1 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 indoor unit fan motor 7. Electric circuit diagram * ...

  • Page 25

    24 * dsa-240lh-r.

  • Page 26: Description

    25 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. 2. If the power on/off button is pressed once more, the relay and triac are turn off and the unit stops operation. 3. The unit turns on or off according to the t...

  • Page 27

    26 8. Tro uble sho oting o utd oo r u nit d oe s no t ru n? (n ote . 1 ) d oe s th e c om pre ss or ru n no rm ally ? In do or un it d oe s no t ru n(n ote 1 ) c he ck th e f ailu re co de a cc ord in g t o th e s elf d ia gn os tic (n ote 2 ) is th e u nit dis pla y m orm al? Ch ec k t he fa ilu re...

  • Page 28: Function Descriptions

    27 note 1) 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? 2 neither outdoor fan nor compressor runs while indoor f...

  • Page 29

    28 confirm following statement. When the unit operate normally, sometimes the outdoor unit and indoor unit cannot operate. 1 check the function select switch. Is it timer mode? 2 the function select switch locate the sleep mode and is the setting time over? 3 is the setting mode dehumidifier mode? 4...

  • Page 30

    29 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 run a...

  • Page 31

    30 confirm following statement. When the unit operate normally, sometimes the outdoor unit and indoor unit cannot operate. 1 is the setting temperature proper? 2 is the unit during 3min. Time delay of compressor. 3 during frost prevention of lndoor unit. 4 during dehumidifier mode. Outdoor fan and c...

  • Page 32: Only Compressor Do Not Run

    31 - 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 wiring of outdoor unit check the compressor (check the winding resistance) check the compressor capacitor check the connecting wire be...

  • Page 33: Pcb Driving Description

    Pcb driving description.

  • Page 34: Pcb Circuit Diagram

    1 pcb circuit diagram * dsa-240l-r/lh-r.

  • Page 36

    * dsa-240l-r/lh-r part list(indoor unit) no part code part name spec q'ty unit remark bz1 3105698200 buzzer dp-2520ba 1 ea ca1 cn5xd104m- c-array f5 104z 1 ea ca2 cn4xd104m- c-array f4 104z 1 ea ca3 cn3xd104m- c-array f3 104z 1 ea cc 3108803500 pin gp881206-2(250) 1 ea cc1 ccxe1e104m c-cera 104z 25v...

  • Page 37

    No part code part name spec q'ty unit remark ic5 1ka7042p-- ic reset kia7042p 5l 1 ea ic6 1kd65004ap ic driver kid65004ap 1 ea l1 52c1374001 coil 130uh 3a 1 ea osc 4850103610 resonator cst8.00mtw,8mhz 1 ea pcb 3104398102 pcb control 160.5*140*1.6t.1(42) 1 ea pt1 1tlp560j-- ic photo coupler tlp 560j ...

  • Page 38

    * led pcb ass`y (model : 240l-r/lh-r) no part code part name spec q'ty unit remark cc1 cdxe1h104m c-multi cr501b-z5u,104z,50v 1 ea cn1 3108804800 wafer smaw250-08 1 ea hold 3103004100 holder led dsb-240l/lh 1 ea l1 ddls05031d led dlso-5031d(red) 1 ea l2 ddlg05031d led dlg-5031d(grn) 1 ea l3 ddls0503...

  • Page 39: Power Supply(1)

    37 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 ce1. Fi...

  • Page 40: Sensor(3)

    38 room temperature and evaporator temperature sensor input description number 24, 25 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 r10 (12.7k Ω ) and r11 (12.7k Ω ). Relatio...

  • Page 41: Triac Driving(4)

    39 triac driving(4) description number 38 terminal of micom is put out pulse output, by way of buffer it is driving photo triac 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 fan speed...

  • Page 42: Remote Controller(5)

    40 description signal from remote controller put in only control data signal at micom terminal of number 33, which is gotten fid of carrier (38khz) from receive module. Signal wave repeat third as following fig 5-1. But in secondary wave custom code is reversed face. Leader code custom code data cod...

  • Page 43: Micom Power Supply(7)

    41 description micom power is supplied 5v at number 42 using vdd, number 19, 20 vsing oscillator, cc13 is noise filter. Micom power supply(7) vdd 42 ce5 10 µ f 16v cc11 104 cc13 104 + 5v 41 40 39 22 21 19 osc 8mhz 20 vss micom.

  • Page 44: Reset(8)

    42 description voltage less than about 0.8v put in micom terminal of number 18 and then micom reset. Reset ic detect power on and voltage less than 4.25v, and then send reset signal. Reset(8) r13 5.6k 1k r12 18 cc9 ce4 4.7uf/50v ic5 7042p 10.3 micom 4.25v h l t t power on vcc (+5v) delay time for po...

  • Page 45: Buzzer Driving(10)

    43 description micom 34 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 4khz. Vcc 12v kid 65004 micom 34 6 11 r4 1k bz1 buzzer driving(10) description selecting function is as fo...

  • Page 46: Zero Crossing Detect(11)

    44 description it defect zero cross part of trans output voltage, transistor tr1 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 d6 r2 5.6k 1 2 cc4 103 tr1 krc120m 1 2 1 2 3 2 1 r3 10k r27 1k vcc 31 detect point h the nu...

  • Page 47: Stepping Motor Driving(12)

    45 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 ic6 kid65004 cn13 1 micom 2 3 4 m1 for swing Ø 4 Ø 3 Ø 2 Ø 1 fig 12-1 (normal rotating) (reve...

  • Page 48

    >> error no error no error no no no no yes select on/off button select mode button select fan speed button select fan dir. Button power supply test start power supply again check the following battery spring micom pcb lcd is display at the beginning on? Is display at the beginning on? Is it normal? ...

  • Page 49

    47 (0.5~24 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 is all display off? Is it normal? Sleep mode display on? Is ...

  • Page 50: (1) U1 (Micom)

    48 (1) u1 (micom) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 vdd (xtout)p22 (xtin)p21 (int5/stop)p20 p17 p16 (tc2)p15 (ppg)p14 (dvo)p13 (int2/tc1)p12 (int1)p11 (into)p10 (ain7)p67 (ain6)p66 (ain5)p65 (ain4)p64 (ain3)p63 (ain2)p62 (ain1)p61 (ain0)p60 varef p77(hso) p76(hsck) p75(so) p74(si...

  • Page 51

    49 (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 Ω 7.2k Ω 3k...

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

    50 (5) u9 (kia7042p) : reset ic kia70 42p outline input ground output vcc 1 3 2 out gnd.

  • Page 53: Indoor Unit

    51 1 indoor unit 10. Disassembly instructions 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) 1 draw up the insert grille and remove it. 2 loosen one screw for fixing the cover ter-block. 3 lo...

  • Page 54: Outdoor Unit

    52 2 outdoor unit * dsa-240l-r/lh-r procedures photos 1.Stop the air conditioner and dis connect the wire from in door unit to out door unit. 2. Disassemble the case. (fig 1~2) 1 remove the top panel. (loosen two screw and remove six hook) 2 remove the front cabinet. (loosen four screw and four hook...

  • Page 55

    53 * dsa-240l-r/lh-r contr ol bo x assy 3 exploded diagram (indoor unit).

  • Page 56

    54 no part code part name q'ty spec remark 1 3100400600 body 1 dsb-240l-r/lh-r 2 3108007500 motor fcu 1 ic-9430dwkg7a 3 3101500400 cushion motor 2 cr i.D30 (r/w45) 4 3106400200 bearing plastic assy 2 o.D37 .0*i.D6.0 5 3100076400 fan cross flow assy 1 Ø100xl864 6 7485401012 set screw 1 6s-4*10-e mfzn...

  • Page 57

    55 no part code part name q'ty spec remark 32 2150013200 al foil emi 0.1 al100p (w100xl100) 33 3106902400 capacitor sh.M.B 1 2.0mf 400v 34 3102797910 harness earth 1 green/yellow l170mm 35 3104896300 sensor id assy 1 ntm-kd43c-d1d2 l450, l330 36 3108912320 terminal block 1 sn-dbw-4p 37 5epv050120 tr...

  • Page 58

    56 4 exploded diagram (outdoor unit) * dsa-240l-r 24 20 18 15 16 6 9 10 3 1 11 13 14 12 25 24 4 5 8 7 23 16 -1 16 -3 16 -6 16 -4 16 -2 16 -5 21 2 2.

  • Page 59

    57 * dsa-240l part list (out door unit) no part code part name q'ty spec remark 1 3100041750 base pan paint assy 1 painting 2 310p30281a foot cushion 4 nbr (54*63.5) 3 3100068201 compressor assy 1 awg5530exc 4 7400208411 washer plain 3 id8.4*od22*t1.6 5 7392801211 nut lock 3 m8*1.25p 6 3100078000 co...

  • Page 60

    58 * dsa-240lh-r 24 20 18 15 16 6 9 10 3 1 11 13 14 12 25 24 4 5 8 7 23 16 -1 16 -3 16 -6 16 -4 16 -2 16 -5 21 2 2.

  • Page 61

    59 * dsa-240lh part list (out door unit) no part code part name q'ty spec remark 1 3100041750 base pan paint assy 1 painting 2 310p30281a foot cushion 4 nbr (54*63.5) 3 3100068201 compressor assy 1 awg5530exc 4 7400208411 washer plain 3 id8.4*od22*t1.6 5 7392801211 nut lock 3 m8*1.25p 6 3100078000 c...

  • Page 62: Control Box Assembly

    60 5 control box assembly * dsa-240l-r 3 12 7 6 9 5 8 1 2 11 10 4.

  • Page 63

    61 * dsa-240l no part code part name q'ty spec remark 1 3104300830 control pcb ass’y 1 240lh-r(a), 240lh-r(b) 2 3101200400 clamp power cord 1 da-5n 3 3106902400 capacitor sh.M.B 1 2.0mf 400v 4 3102797910 harness earth 1 green/yellow l170mm 5 3102714400 harness capacitor 1 dsb-240l-r, lh-r capacitor ...

  • Page 64

    62 * dsa-240lh-r 3 13 7 6 9 10 5 8 1 2 12 11 4.

  • Page 65

    63 * dsa-240lh no part code part name q'ty spec remark 1 3104300830 control pcb ass’y 1 240lh-r(a), 240lh-r(b) 2 3101200400 clamp power cord 1 da-5n 3 3106902400 capacitor sh.M.B 1 2.0mf 400v 4 3102797910 harness earth 1 green/yellow l170mm 5 3102714400 harness capacitor 1 dsb-240l-r, lh-r capacitor...

  • Page 66

    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. : dsa240lhr printed date: oct. 2000