Daewoo DMB-G078LH-V Service Manual

Summary of DMB-G078LH-V

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    Service manual split system air conditioner model: dmb-g078lh-v dmb-g098lh-v dmb-g128lh-v dmb-g2713lh-vo apr., 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 information, please refer to p...

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    Contents 1. Features 2. Specification 3. Dimensions 4. Refrigeration cycle diagram 5. Operation limits 6. Wiring diagram 7. Troubleshooting 8. Electronic function 02 03 04 06 07 08 10 11 1.

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    1.Features 1.1 powerful at cooling/heating, 1.3 times and 1.6 times relatively higher than normal same type of models. 1.2 low voltage start-up function, even at 160 v it can normally start. 1.3 anti-icing function at cooling mode. 1.4 anti-cold air function at heating mode. 1.5 auto-defrosting and ...

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    2. Specification model item dmb-g078lh-v dmb-g098lh-v dmb-g128lh-v power source 220-240v~ 50hz 220-240v~ 50hz 220-240v~ 50hz capacity btu/h 7000(2700~9000) 9000(2730~10600) 12000(3070~12300) input w 820(250~1200) 1080(270~1470) 1400(310~1710) running current a 4.8(1.35~6.2) 6.0(1.45~7.6) 7.5(1.6~8.8...

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    3. Dimensions 3.1 indoor unit(dmb-g078lh-v, dmb-g098lh-v) 188 750 4.

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    3.2 indoor unit (dmb-g128lh-v) 3.4 outdoor unit (dmb-f2713lh-vo) 5.

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    4. Refrigeration cycle diagram indoor unit outdoor unit valve sensor of room temp heat exchanger . 4 way valve sensor heat exchanger sensor of temp sensor of heat exchanger temp . Sensor of heat exchanger temp compressor valve capillary 6.

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    5. Operation limits 5.1 cooling operation outdoor unit air temp. 60 50 40 30 20 10 10 17 25 30 35 40 indoor air temp. Note :the chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage. 5.2 heating operation indoor air...

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    6. Wiring diagram indoor unit (dmb-g078lh-v, dmb-g098lh-v) 8.

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    Indoor unit(dmb-g128lh-v) outdoor unit (dmb-f2713lh-vo) 9.

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    10

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    8 .Electronic function 8.1 general protection 8.1.1 temperature protection of compressor top 8.1.2 3 minutes delayed starting protection of the compressor 8.1.3 voltage protection 8.1.4 the frequency up-down speed at which the compressor starts, operates and shuts off will be subject to the followin...

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    8.2.5 performance at auto mode at fan-only status is the same as that at auto mode at cooling status, provided that the set temperature is 24°c. 8.3 cooling mode function requirement 8.3.1 at cooling mode the 4 way valve is off. 8.3.2 anti-icing control for indoor evaporator when the temperature of ...

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    8.3.4 indoor fan operates in accordance with the following principles: 8.3.4.1 when indoor fan is in operation, it can be remote controlled to high/mid/low/auto modes. 8.3.4.2 the fan speed at auto mode in cooling status is subject to the following: 8.3.5 indoor fan vanes at cooling mode will swing ...

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    8.4.6 at dehumidifying mode, the power voltage and outdoor temperature limitation to the highest frequency when compressor starts and operates is the same as that at cooling mode. 8.5 heating mode function requirement 8.5.1 at heating mode, the 4 way valve is on, during defrosting operation, it is o...

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    8.5.5 outdoor unit current control when heating note: the frequency in the table goes down in accordance with the present frequency, determine every 2 seconds whether it keeps going down or it is recovering. 8.5.6 indoor evaporator protection against high temperature when the temperature of indoor h...

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    The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than 80 minutes, and the temperature remains consecutively ti2 for more than 3 minutes. Model dsb-g098lh-v dsb-g128lh-v ti2: -7°c -7°c the temperature of outdoor heat exchanger remains consecutively lower than 3°...

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    8.5.9 set function test when it is detected that the outdoor temperature is between 5 - 9°c and room temperature is between 18 - 22°c, provided that the heating operation remains consecutively more than 30 minutes, the compressor's highest operational frequency is fmax=f8=96hz. If any of the above c...

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    18 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: apr., 2006.