Daewoo DMA-2703L Service Manual

Summary of DMA-2703L

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    Manual de servicio acondicionador de aire tipo multi split modelo:.

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    2 1. Features 3 2. Specification 4 3. Dimensions 5 4. Refrigeration cycle diagram 6 5. Operation limits 7 6. Wiring diagram 8 7. Troubleshooting 11 8. Electronic function 12.

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    3 1.Features 1.1 compact design 1.2 high efficiency and quiet operation.

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    4 2.Specification model dma-2703 factory model t-kf(26x3)gw/i1t3y power supply ph-v-hz 1ph,220-240v~,60hz 1ph,220-240v~,60hz capacity btu/h 9000x3 27000 input w 890x2 1900 rated current a 3.9x2 8.3 cooling eer btu/w.H 10.1 /10.1 11.0 moisture removal l/h 1.0x2 1.0x3 max. Input consumption w 2250 235...

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    3.Dimensions 3.1 indoor unit 3.2 outdoor unit 5.

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    4.Refrigeration cycle diagram 4.1 cooling for ms2g-18cr compressor compressor condenser evaparator evaparator 4.1 cooling for dma-2703l 6.

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    5.Operation limits cooling operation outdoor unit air temp. ℃ db 45 7 dry cooling 40 35 30 25 20 10 15 20 25 30 35 40 indoor air temp. ℃ db note : the chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage..

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    6.Wiring diagram 6.1 ms2g-18cr indoor unit outdoor unit 8.

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    6.2 dma-2703l indoor unit 9.

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    Outdoor unit 10

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    11 7.Troubleshooting failure phenomenon operation lamp timer lamp fan lamp over current protection of the compressor occurs 4 times ☆ x ☆ indoor fan speed has been out of control for over 1 minute ☆ x x zero cross error ☆ ☆ ☆ indoor evaporator sensor is open circuit or short circuit x x ☆ indoor roo...

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    12 8 electronic function 8.1 electric control working environment 8.1.1 input voltage: 175~253v 8.1.2 input power frequency:50hz 8.1.3 ambient temperature: -7 °c~+43°c 8.1.4 indoor fan normal working amp is less than 1a, 8.1.5 outdoor fan. Normal working amp is less than 1.5a 8.1.6 four-way valve no...

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    13 8.4 protection 8.4.1 the compressor functions protection with a delay of three minutes. 8.4.2 sensor protection at open circuit and breaking disconnection 8.4.3 temperature fuse break protection 8.4.4 fan speed is out of control. When indoor fan speed is too high(higher than high fan+300rpm)or to...

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    14 anti-freezing control to indoor evaporator at cooling mode( t: evaporator temp. ) condition temp. Time compressor outdoor fan t> te6 on on temp. Up t >5 minutes off off t> te5 on on temp. Down t >5 minutes off off 8.7 dehumidifying mode 8.7.1 the 4-way valve is off in dehumidifying mode 8.7.2 com...

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    15 anti-cold wind control function at heating mode condition t= indoor exchanger temp. Indoor fan speed t te1 indoor exchanger temp. Up t>te2 setting fan speed t> te3 setting fan speed te3 indoor exchanger temp. Down t 8.8.5 auto wind at heating mode condition t=indoor temp.-setting temp. Indoor fan...

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    If the temp. Difference condition ② is satisfied for more than 40 minutes, the defrosting time is 6 minutes. If the temp. Difference condition ① is satisfied out of 40 minutes, generally the defrosting time is 6 minutes, after three continuous 6-minute defrost, the fourth should be 10 minutes defros...

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    8.9.4 defrosting actions: defrost 10or 6minutes 45s 25s compressor 4-way valve 23s 40s outdoor fan indoor fan 10s 8.9.7 turn into heating mode, turn off the heating mode in 7 minutes. 8.10 automatic operation mode 8.10.1 the air conditioner automatically selects one of the following operation modes:...

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    18 the set temperature rise 1℃ per hour. Two hours later, the set temperature will maintain as a constant and the fan speed is kept at low speed. 8.14.3 heating(only for heat pump model): the set temperature decrease 1℃ per hour. Two hours later, the set temperature will maintain as a constant and t...

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    19 8.16 models and parameters(indoor unit) model dma-2703l cspeedh 1100 cspeedm 1020 cspeedl 950 cspeeds 800 te5 2℃ te6 7℃.

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    Gd m idea r ef r igeration equipme nt co.,ltd. Have received certificat ion for quality assu rance. Iso 9001 cert ificate nu mber. Cc 454 gd m idea r ef r igeration equipme nt co.,ltd. Have received envir onm ental man agement system stand ard cer tification iso 1 4001 cert ificate nu mber. Cc 1417 ...