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  4. DSB-075L
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Daewoo DSB-075L Service Manual

Manual is about: Split System Air Conditioner

Summary of DSB-075L

  • Page 1

    Service manual split system air conditioner model: dsb-075l dsb-075lh dsb-095l dsb-095lh dsb-125l dsb-125lh dsb-185l dsb-185lh may., 2006 ✔ caution : in this manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts informat...

  • Page 2: Elite Series (R22)

    1 elite series (r22) contents 1. Features………………………………………………………………… 02 2. Specification………………………………………………………..……03 3. Dimensions…………………………………………………………..… 05 4. Refrigeration cycle diagram……………………………………………08 5. Capacity table…………………………………………………………...09 6. Wiring diagram…………………………………………………..………15 7. El...

  • Page 3

    2 1.Features 1.1 compact design 1.2 led display.

  • Page 4

    3 2.Specification dsb-075l dsb-075lh dsb-095l dsb-095lh ph-v-hz 220-240v~,50hz 220-240v~,50hz 220-240v~,50hz 220-240v~,50hz capacity btu/h 7000 7000 9000 9000 input w 800 800 1010 1010 rated current a 3.5 3.5 4.6 4.6 eer btu/w.H, w/w 8.8,2.6 8.8,2.6 8.9,2.61 8.6,2.61 capacity btu/h 8000 10000 input ...

  • Page 5

    4 dsb-125l dsb-125lh dsb-185l dsb-185lh ph-v-hz 220-240v~,50hz 220-240v~,50hz 220-240v~,50hz 220-240v~,50hz capacity btu/h 12000 12000 18000 18000 input w 1350 1350 1960 1960 rated current a 6.0 6.0 9.4 9.4 eer btu/w.H, w/w 8.9,2.6 8.9,2.6 9.2,2.7 9.2,2.7 capacity btu/h ___________ 14000 / 19000 inp...

  • Page 6

    5 3.Dimensions 3.1 indoor unit dsb-075l, dsb-075lh dsb-095l, dsb-095lh dsb-125l, dsb-125lh.

  • Page 7

    6 dsb-185l, dsb-185lh.

  • Page 8

    7 3.4 outdoor unit dsb-075l, dsb-075lh dsb-095l, dsb-095lh 3.5 outdoor unit dsb-125l, dsb-125lh dsb-185l, dsb-185lh.

  • Page 9

    8 4.Refrigeration cycle diagram.

  • Page 10

    9 5. Capacity table 5.1 dsb-075l summer outdoor temperature dry indoor conditions 25ºc 30ºc 35ºc 40ºc 45ºc 50ºc total capacity kw 2.02 1.92 1.79 1.64 1.51 1.41 sensitive capacity kw 1.44 1.39 1.34 1.27 1.20 1.15 21ºc d 15ºc w input kw. 0.70 0.76 0.82 0.88 0.95 1.00 total capacity kw 2.16 2.07 1.95 1...

  • Page 11

    10 winter outdoor conditions indoor conditions 12ºc d 11ºc w 7ºc d 6ºc w 4ºc d 3ºc w 0ºc d -1ºc w -4ºc d -6ºc w -7ºc d -8ºc w capacity kw 2.75 2.45 2.17 1.40 1.17 1.13 15ºc input kw. 0.97 0.86 0.77 0.67 0.62 0.65 capacity kw 2.60 2.33 2.10 1.33 1.23 1.09 18ºc input kw. 0.99 0.86 0.78 0.71 0.68 0.68 ...

  • Page 12

    11 5.4 dsb-095lh summer outdoor temperature dry indoor conditions 25ºc 30ºc 35ºc 40ºc 45ºc 50ºc total capacity kw 2.44 2.32 2.16 1.98 1.82 1.70 sensitive capacity kw 1.68 1.63 1.56 1.48 1.40 1.34 21ºc d 15ºc w input kw. 0.87 0.95 1.02 1.09 1.17 1.24 total capacity kw 2.62 2.50 2.36 2.20 2.07 1.94 se...

  • Page 13

    12 5.5 dsb-125l summer outdoor temperature dry indoor conditions 25ºc 30ºc 35ºc 40ºc 45ºc 50ºc total capacity kw 3.38 3.21 2.99 2.75 2.52 2.35 sensitive capacity kw 2.53 2.28 2.18 2.07 1.96 1.88 21ºc d 15ºc w input kw. 1.20 1.30 1.41 1.51 1.61 1.72 total capacity kw 3.62 3.46 3.26 3.06 2.86 2.68 sen...

  • Page 14

    13 winter outdoor conditions indoor conditions 12ºc d 11ºc w 7ºc d 6ºc w 4ºc d 3ºc w 0ºc d -1ºc w -4ºc d -6ºc w -7ºc d -8ºc w capacity kw 4.81 4.28 3.78 2.45 2.04 1.97 15ºc input kw. 1.61 1.44 1.29 1.11 1.03 0.99 capacity kw 4.53 4.06 3.66 2.32 2.14 1.98 18ºc input kw. 1.65 1.44 1.31 1.18 1.14 1.02 ...

  • Page 15

    14 5.8 dsb-185lh summer outdoor temperature dry indoor conditions 25ºc 30ºc 35ºc 40ºc 45ºc 50ºc total capacity kw 4.69 4.45 4.15 3.81 3.50 3.27 sensitive capacity kw 3.28 3.18 3.04 2.88 2.74 2.62 21ºc d 15ºc w input kw. 1.70 1.84 1.99 2.14 2.28 2.43 total capacity kw 5.03 4.81 4.53 4.25 3.97 3.73 se...

  • Page 16

    15 6. Schematic diagram and wiring diagram 6.1 schematic diagram 1 2 3 4 5 6 7 8 a b c d 8 7 6 5 4 3 2 1 d c b a c1 104 vin 1 gn d 2 vout 3 ic3 7805 +5v e3 470uf/16v e1 2200uf/25v c4 104 d4 d3 d2 d1 vin 1 gn d 2 vout 3 ic1 7812 +12v-a e2 1000uf/16v c3 104 x1 4m r7 1m a0 1 a1 2 a2 3 gnd 4 sda 5 scl 6...

  • Page 17

    16 6.2 wiring diagram 6.2.1 cooling only 6.2.1.1 dsb-075l, dsb-095l, dsb-125l 1 2(n) y&g blue s red c black r black compressor capacitor fan motor blue red red red black y&g ind oo r unit out do or unit.

  • Page 18

    17 6.2.1.2 dsb-185l indoor unit compressor capacitor compressor y/g white s blue r c overload relay red outdoor unit capacitor fan fan motor blue red black y&g black black.

  • Page 19

    18 6.2.2 heating/cooling 6.2.2.1 dsb-075lh, dsb-095lh, dsb-125lh ind oor un it out door u nit.

  • Page 20

    19 6.2.2.2 dsb-185lh i n d o o r u n i t o u t d o o r u n i t r e d b l a c k b l u e b l a c k y & g c o m p r e s s or c s r w h i t e b l u e c o m p r e s s o r c a p a c i t o r f a n m o t o r r e d b l u e f a n c a p a c i t o r b l a c k b l u e 4 - w a y y / g o v e r l o a d r e l a y.

  • Page 21

    20 7 electronic function 7.1 electric control working environment 7.1.1 input voltage: 175~253v 7.1.2 input power frequency:50hz 7.1.3 ambient temperature: -7 °c~+45°c 7.1.4 indoor fan normal working amp is less than 1a, 7.1.5 outdoor fan. Normal working amp is less than 1.5a 7.1.6 four-way valve no...

  • Page 22

    21 7.4 protection 7.4.1 3 minutes delay at restart for compressor. 7.4.2 sensor protection at open circuit and breaking disconnection 7.4.3 fan speed is out of control. When indoor fan speed is too high(higher than high fan+300rpm)or too low(lower than 400rpm), the unit stops and led displays failur...

  • Page 23

    22 anti-freezing control to indoor evaporator at cooling mode( t: evaporator temp. ) condition temp. Time compressor outdoor fan t> te6 on on evaporator temp. Up t >5 minutes off off t> te5 on on evaporator temp. Down t >5 minutes off off 7.7 dehumidifying mode 7.7.1 the 4-way valve is off in dehumi...

  • Page 24

    23 t= indoor exchanger temp. T te1 indoor exchanger temp. Up t>te2 setting fan speed t> te3 setting fan speed te3 indoor exchanger temp. Down t 7.8.5 auto wind at heating mode condition t=indoor temp.-setting temp. Indoor fan speed t room temp. Up t>2℃ med. T> 0℃ med. Room temp. Down t 7.8.6 indoor ...

  • Page 25

    24 (c) for any case leading to frost, if a/c defrosts for 7.5 minutes three times, the forth defrosting time is 10 minutes. → 7.5-minute defrost → 7.5-minute defrost→7.5-minute defrost→10-minute defrost→ 7.10 ending condition of defrosting if one of following conditions is satisfied, end the defrost...

  • Page 26

    25 7.14 forced auto function select forced auto function with the forced auto button or the switch. In forced auto status the a/c operates at remote control mode with a set temp. Of 24℃. 7.15 timer function 7.16 economic running 7.16.1 the economic running function is available at cooling, heating o...

  • Page 27

    26 model dsb-075l dsb-075lh dsb-095l dsb-095lh i3sec 8.5a 8.5a 10.0a 10.0a i5min 6.5a 6.5a 7.5a 7.5a ifan 5.5a 5.5a 5.5a 5.5a irestore 4.5a 4.5a 4.5a 4.5a idefrost 3.5a 3.5a te1 28℃ 28℃ te2 32℃ 32℃ te3 30℃ 30℃ te4 26℃ 26℃ te5 4℃ 4℃ 4℃ 4℃ te6 10℃ 10℃ 10℃ 10℃ te7 60℃ 60℃ te8 53℃ 53℃ te9 50℃ 50℃ anglco...

  • Page 28

    27 model dsb-125l dsb-125lh dsb-185l dsb-185lh i3sec 12.0a 12.0a 16.0a 16.0a i5min 8.5a 8.5a 13.0a 13.0a ifan 7.5a 7.5a 11.0a 11.0a irestore 6.5a 6.5a 9.5a 9.5a idefrost 5.0a 7.5a te1 34 34 te2 37 36 te3 33 30 te4 22 20 te5 4 4 3 3 te6 10 10 14 14 te7 63 60 te8 53 52 te9 52 50 anglcool 88 88 88 88 a...

  • Page 29

    28 8.Troubleshooting 8.1 display board thi s indicator illuminates whe n the air conditioner i s in auto operation. Au to indicator de frost indicator (f or cooling & h eating mo dels only) thi s indicator illuminates whe n the air conditioner starts defrostin g automati cally or when the warm air c...

  • Page 30

    29 8.3 diagnostic chart 8.3.1 after energizing, no indicator is lighted and the air conditioner can’t be operated. Yes yes no no yes yes no 8.3.2 resetting phenomenon often occurs during operation. (that is automatically entering to the status when power is on.) the reason is that the instantaneous ...

  • Page 31

    30 8.3.3 failure phenomenon failure phenomenon operation lamp timer lamp indoor fan speed has been out of control for over 1 minute ☆ x indoor room temp. Or evaporator sensor is open circuit or short circuit ☆ on over current protection of the compressor occurs 4 times x ☆ eerom error on ☆ no over-z...

  • Page 32

    31 9. Characteristic of temp. Sensor temp.℃ resistance kΩ temp.℃ resistance kΩ temp.℃ resistance kΩ -10 62.2756 17 14.6181 44 4.3874 -9 58.7079 18 13.918 45 4.2126 -8 56.3694 19 13.2631 46 4.0459 -7 52.2438 20 12.6431 47 3.8867 -6 49.3161 21 12.0561 48 3.7348 -5 46.5725 22 11.5 49 3.5896 -4 44 23 10...

  • Page 33

    Daewoo electronics corp. 686, ahyeon-dong mapo-gu seoul, korea c.P.O. Box 8003 seoul, korea telex: dwelec k28177-8 cable: “daewooelec” printed date: may., 2006.

  • Page 34: About This Manual

    3 담 담 당 당 이채경님 t te el l m mo od de el l s/m_수출 b bu uy ye er r d ds sb b- -0 07 75 5l l//l lh h,,0 09 95 5l l//l lh h,,1 12 25 5l l//l lh h((s s//m m)) 1차 06.5.1 6차 2차 7차 일 일 정 정 3차 8차 4차 9차 5차 10차 제 제 판 판 인 인쇄 쇄 규 규 격 격 m me em mo o 0 06 6..5 5..1 1- -전 전체 체신 신규 규__3 33 3p pa ag ge e 연 연락 락처 처 v v...