Daewoo DSC-1245FL Service Manual
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Daewoo DSC-1245FL Service Manual

Wall mounted split-type air conditioners
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DAEWOO
WALL MOUNTED SPLIT-TYPE AIR CONDITIONERS
SERVICE MANUAL
Models
DSC-1245FL
DSC-1285FL
DSC-1285FLH
CONTENTS
6. EXPLOSION VIEW AND PART LISTS
11. DISASSEMBLY PROCEDURE
No.20160824

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Summary of Contents for Daewoo DSC-1245FL

  • Page 1: Table Of Contents

    DAEWOO WALL MOUNTED SPLIT-TYPE AIR CONDITIONERS SERVICE MANUAL No.20160824 Models DSC-1245FL DSC-1285FL DSC-1285FLH CONTENTS 1. IMPORTANT NOTICE 2. PRODUCT DIMENSIONS 3. REFRIGERATION CYCLE DIAGRAM 4. OPERATION DETAILS 5. WIRING DIAGRAM 6. EXPLOSION VIEW AND PART LISTS 7. PRECAUTION 8. NAMES OF PARTS 9.

  • Page 2: Important Notice

    Air Conditioner Service Manual 1. IMPORTANT NOTICE This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair the appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.

  • Page 3: Product Dimensions

    Air Conditioner Service Manual PRODUCT DIMENSIONS Indoor Unit: Outdoor Unit: Model 277.8...

  • Page 4: Refrigeration Cycle Diagram

    Air Conditioner Service Manual REFRIGERATION CYCLE DIAGRAM Cooling only Liquid side 2-way valve Capillary Heat exchange Heat exchange (Evaporator) (condenser) Gas side 3-way valve Accumulator Compressor Heat pump Check valve Liquid side 2-way valve Capillary Assembly Heat exchange Heat exchange (Evaporator) (condenser) Gas side...

  • Page 5: Operation Details

    Air Conditioner Service Manual 4.Operation Details Remote controller ON/OFF button To switch the conditioner on and off. ECO button In cooling mode,press this button ,the temperature will increase 2 on the base of setting temperature: In heating mode, press this button, the temperature will decrease 2 on the base of setting temperature.
  • Page 6 Air Conditioner Service Manual Electronic controller NOTES: RT-------Room Temperature. IPT------Indoor Pipe Temperature. ST------indoor Setting Temperature. OPT---Outdoor Pipe Temperature. CRT---Compensated Room Temperature 1. Automatic mode 1) The initial RT determines A/C working mode and the setting temperature (ST), the mode is determined effective only once unless A/C shut-down and then re-started.
  • Page 7 Air Conditioner Service Manual a. Indoor fan motor can operate by automatic, low, middle, or high airflow speed circularly. b. Indoor fan motor automatic airflow speed control, it works as shown in Figure 1: RT－ST 1°C 2°C 4°C Figure 1 Cooling automatic airflow When the temperature changing leads the fan speed variation, the switch can only be made orderly, and in every grade of air flow speed should run 1 minute at least.
  • Page 8 Air Conditioner Service Manual the four-way valve will close 2min later after shut-down the compressor. 6) Defrosting function: During defrosting, once mode changing, economic operation or temperature setting signals received, the buzzer and display will make response immediately, but the other operations won’t implement until defrosting finished;...
  • Page 9 Air Conditioner Service Manual less than 23°C (cold air prevention wind temperature) when the fan stops running (including temperature dropping when compressor operating, not including the compressor’s starting up course), and the machine runs into defrosting according to any one condition as below. Running into defrosting under condition 3, defrosting time set is 10 min.
  • Page 10 Air Conditioner Service Manual (2) The conditions of auxiliary electric heating works (all the following conditions must be met) a. the compressor runs for more than 3min； b. indoor fan runs normally； c. not in defrosting state; d. auxiliary electric heating is turned off for more than 30s。 e.
  • Page 11 Air Conditioner Service Manual meanwhile indoor fan motor runs in high-speed, and stepping vane swinging as well. 30min later the A/C goes into automatic mode under the same operation manner, the set temperature to be 23°C, and the rotate speed of indoor fan motor automatic control, stepping vane swinging all the way. 3) To press the emergency button when the A/C goes on operation, then the machine runs into stand-by.
  • Page 12 Air Conditioner Service Manual conditions, the fan speed is regulated according to the coil temperature within 2 min, 2 min later the indoor fan motor stops. If the compressor starts up within 2 min, then operating according to Figure 5. Under heating process, while the compressor stop (including stopping for protection), the fan motor’s operation (including stopping the indoor fan motor) is regulated according to the coil temperature within 1min, 1min later the fan will be stopped forcibly.
  • Page 13 Air Conditioner Service Manual the indoor fan motor stops, meanwhile, the compressor, outdoor fan motor, four-way valve and/or auxiliary electric heater etc. also cut down. The indoor fan motor restarts again 10 seconds later, if still there is no feedback signal of rotated speed within 5 seconds, the A /C stops and goes into indoor fan motor failure protection, buzzer rings three times, and running light flashes at 6 times per 8 seconds.

  • Page 14: Wiring Diagram

    Air Conditioner Service Manual 5. WIRING DIAGRAM MODEL: DSC-1245FL DSC-1285FL INDOOR UNIT: OUTDOOR UNIT...
  • Page 15 Air Conditioner Service Manual MODEL: DSC-1285FLH INDOOR UNIT: OUTDOOR UNIT...
  • Page 16 Air Conditioner Service Manual 6. EXPLOSION VIEW AND PARTS EXPLOSION VIEW Mode: DSC-1245FL DSC-1285FL DSC-1285FLH INDOOR UNIT:...
  • Page 17 Air Conditioner Service Manual MODEL: DSC-1245FL DSC-1285FL OUTDOOR UNIT:...
  • Page 18 Air Conditioner Service Manual MODEL: DSC-1285FLH OUTDOOR UNIT:...

  • Page 19: Parts List

    Air Conditioner Service Manual PARTS LIST Indoor unit: Model: DSA-1285FL DSA-1885FL DSA-2485FL Part No. Part Name Q’ty Remark Installation Plate Base Vertical Vane Assembly Cross Fan Bearing Mount Evaporator Face Frame Screw Cover Air Filter Display PCB Box Display PCB Front Panel Vane Power Supply Cord...
  • Page 20 Air Conditioner Service Manual Outdoor unit: Model: DSC-1245FL DSC-1285FL Part No. Part Name Q’ty Remark Optional Grille Top Cover Condenser Outdoor Motor Supporter Outdoor Motor Propeller Fan Left Grille Supporter Front Plate Fan Guard Capillary Assembly Compressor And It Accessories...
  • Page 21 Air Conditioner Service Manual Outdoor unit: Model: DSC-1285FLH Part No. Part Name Q’ty Remark Optional Back Grille Top Cover Condenser Outdoor Motor Supporter Outdoor Motor Propeller Fan Left Grille Supporter Front Plate Fan Guard Compressor And It Accessories 4-way Valve 4-way Valve Assembly Base Right Plate...

  • Page 22: Precaution

    Air Conditioner Service Manual 7. Precaution 7.1 SAFETY RULES AND RECOMMENDATIONS FOR THE INSTALLATION  Read this guide before installing and using the appliance.  During the installation of the indoor and outdoor units the access to the working area should be forbidden to children.
  • Page 23 Air Conditioner Service Manual 7.2 SAFETY RULES AND RECOMMENDATIONS FOR THE USER  Do not try to install the conditioner alone; always contact specialized technical personnel. Cleaning and maintenance must be carried out by specialized technical personnel. In any case disconnect the appliance from the mains electricity supply before carrying out any cleaning or maintenance.

  • Page 24: Names Of Parts

    Air Conditioner Service Manual 8. Names of parts INDOOR UNIT Indoor unit 2-3 4 Name Front panel Air filter Special filter(option) Display PCB Vertical vane Horizontal vane Remote controller Outdoor unit Name Air outlet grille Electronic box cover 2-way valve 3-way valve OUTD OOR UNIT...

  • Page 25: Installation

    Air Conditioner Service Manual 9. Installation manual 9.1 Information for installation Connecting pipe Pipe size(Inch) Model Liquid 1/4’’ DSC-1245FL DSC-1285FL DSC-1285FLH Indoor unit Outdoor unit Pipe l ength is Pi pe length is 15 meters Max. 15 meters Max. Indoor unit...
  • Page 26 Air Conditioner Service Manual 9.2 Installation details Indoor unit  Install the indoor unit level on a strong wall  that is not subject to vibrations  The inlet and outlet ports should not be obstructed: the air should be able to blow all over the room.
  • Page 27 Air Conditioner Service Manual 5).The cable connecting the outdoor and indoor units must be suitable for outdoor use.  Install the indoor unit in the room to be air conditioning, avoiding to installation in corridors or communal areas.  Install the indoor unit at a height of at least 2.5m from the ground.
  • Page 28 Air Conditioner Service Manual 6).The plug must be accessible also after the appliance has been installed so that it can be pulled out if necessary. .An efficient earth connection must be ensured. 8).If the power cable is damaged, it must be replaced by an authorized Service Centre.
  • Page 29 Air Conditioner Service Manual 4).If the piping is installed to the right, the pipes, power cable and drain hose must be lagged and secured onto the rear of the unit with a pipe connection.  Insert the pipe connection into the relative slot.

  • Page 30: Trouble Shooting

    Air Conditioner Service Manual 10. Trouble shooting 10.1 Product does not operate at all. Product input voltage Power supply voltage check Power input voltage on driving load terminal. Connector contact check Display PCB connector Power transformer output voltage AC about 12±3V PCB assy check...
  • Page 31 Air Conditioner Service Manual 10.2 Indoor fan does not operate at all (E6). Check: Motor output connector Connector contact Motor capacitor Check: Motor bearing inserted state Motor-related parts Fan(Blower) fixed state Fan(Blower) contact state Motor detail check Operation mode check Check: Motor driving circuit PCB ass'y check...
  • Page 32 Air Conditioner Service Manual 10.3 Compressor or outdoor fan does not operate at all. Re-input after power off Set the desired temperature of remote controller to be lower by 2°C or over than room temperature, and start the cooling operation. Repeat running/stopping Does not operate at all.
  • Page 33 Air Conditioner Service Manual 10.4 Vane does not operate at all. Vane bending, structures interference check Connector check (Broken/short circuit/mal- connection) Replace the vane motor Vane motor check PCB ass'y check(vane Replace the PCB motor driving circuit) 10.5 Cooling/heating conversion is disable. Heating operation ON by remocon Connector check If the 4-way valve is ON, "tick"...

This manual is also suitable for:

Dsc-1285flDsc-1285flh

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