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Daewoo
DPB-280LH service manual
Models:
DPB-280LH
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Troubleshooting
Specification
Install
Error messages
Circuit Diagram
6ELECTRICAL WIRING
Reset8
Self-DiagnosticFunction
OFF-Timer
Room Temperature / Desired Temperature Indicator
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Contents
FLOOR STANDING AIR CONDITIONER Model DPB-280LH
CONTENTS
Contents
1INSTALLATION PLACE
1. INSTALLATION GUIDE
2SPACE TO INSTALL
Specification and method of copper tube
3INSTALLATION OF INDOOR UNIT
4INSTALLATION OF OUTDOOR UNIT
5REFRIGERANT TUBE CONNECTION
6ELECTRICAL WIRING
Spec
Color
DPB-280LH
2. SPECIFICATIONS
1INDOOR UNIT
3. OUTLINE
DPB-280LH
Part Name
DPB-280LH
2OUTDOOR UNIT
Part Name
Quantity
4. OPERATION
1PARTS OF NAME AND FUNCTION
Indoor Unit
ROOM TEMPERATURE / DESIRED TEMPERATURE INDICATOR
OUTDOOR UNIT AIR OUT SERVICE VALVESGAS TUBE
Outdoor Unit
SERVICE VALVESLIQUID TUBE
OUTDOOR UNIT AIR IN
Name of Each Button
2REMOTE CONTROLLER
Display
pertaining to unit
Replacing Batteries
3REMOTE CONTROLLER DISPLAY
Lights to indicate the timer function mode
Lights to indicate the temperature or time
ON-Timer
OFF-Timer
Control of Room Temperature
4DESCRIPTION OF FUNCTIONS
Fan Speed Indoor Unit
Sleep Mode
Frost Prevention of Indoor Unit
Indoor coil temperature
3 Seconds Time Delay of Indoor Fan Motor
3 min. Time Delay of Compressor
Auto Mode
ROOM TEMPERATURE
Self-DiagnosticFunction
Quick ModePowerful Cooling & Heating
Dehumidification Mode
Air Discharge Direction
5. CIRCUIT DIAGRAM
1WIRE CONNECTION OF INDOOR AND OUTDOOR UNIT
DPB-280LH
Technical data
2MAIN ELECTRIC PARTS
DPB-280LH
Object/part No
3PCB CIRCUIT DIAGRAM
Part Code
Specification
Part Name
Quantity
Part Code
Specification
Part Name
Quantity
4PCB DRIVING DESCRIPTION
Power Supply1
Oscillator2
DESCRIPTION
Sensor3
Resistance & Voltage of the Sensor
DESCRIPTION
DESCRIPTION
Triac Driving4
DESCRIPTION
Remote Controller5
BIT STRUCTURE
0.56ms
DESCRIPTION
Micom Power Supply7
OSC 8MHz
VDD
DESCRIPTION
Reset8
MICOM
R4 5.6K + CE5 4.7∝ F
Buzzer Driving10
Function Selecting9
DESCRIPTION
DESCRIPTION
DESCRIPTION
Zero Crossing Detect11
AC18V The Number 31 of H Micom terminal L
DETECT POINT
DESCRIPTION
Stepping Motor Driving12
Ø4 Ø3 Ø2 Ø1
Normal Rotating
MICOM
VOLTAGE REGULATOR KIA7805AP-5VDC
DARLINGTON ARRAYS KID65004
VOLTAGE REGULATOR KIA7812AP-12VDC
Pin 1. INPUT 2.GROUND 3.OUTPUT
INPUT GROUND OUTLINE OUTPUT
RESET IC KIA 7042P
HIGH PRESSURE SWITCH M
6. REFRIGERANT CYCLE
SERVICE VALVE
ODØ2.0 x 250mm
7. TROUBLE SHOOTING
1Neither Indoor Unit nor Outdoor Unit Runs
2Outdoor Unit Runs but Indoor Unit Do Not Run
3Outdoor Fan Do Not Run
4Only Compressor Do not Run
TEST START
5REMOTE CONTROLLER ASSMBLY FUNCTIONAL TEST METHOD
Is LCD display OFF? Select TIMER ON Button
1INDOOR UNIT
8. EXPLODED DIAGRAM
Page
Part Name
Part Code
Quantity
Remarks
Part Name
Part Code
Quantity
Remarks
2OUTDOOR UNIT
Page
Part Name
Part Code
Quantity
Remarks
PRINTED DATE APR.1999
CABLE “DAEWOOELEC” FAX
TEL 02 360-8182/8178~9
