Daewoo DMB-2112LH - User Manual

CONTENTS
1. SPECIFICATIONS.....................................................................................................2
2. CONFIGURATION.....................................................................................................4
3. OUTLINE AND DIMENSIONS .................................................................................5
4. INSTALLATION SECTION......................................................................................10
5. OPERATION............................................................................................................26
6. WIRING DIAGRAM .................................................................................................41
7. REFRIGERANT CYCLE.........................................................................................45
8. CONTROL BLOCK DIAGRAM...............................................................................46
9. TROUBLE SHOOTING...........................................................................................48
10. PCB DRIVING DESCRIPTION ............................................................................54
11. KEY COMPONENTS OF ELECTRONIC CIRCUIT ...........................................76
12. DISASSEMBLY INSTRUCTIONS........................................................................80
1) Indoor Unit ........................................................................................................80
2) Outdoor Unit .....................................................................................................83
3) Exploded Diagram (Indoor Unit)......................................................................84
4) Exploded Diagram (Outdoor Unit)...................................................................92
5) Control Box Assembly......................................................................................96
6) Control Panel Assembly.................................................................................102
Contents

Summary

1. SPECIFICATIONS

Model Specifications

Detailed technical specifications for different air conditioner models.

4. INSTALLATION SECTION

Accessories and Site Preparation

Covers accessories, installation overview, site selection, and wall bracket mounting.

Wiring, Tubing, and System Setup

Guides through wiring, tubing, air purging, and final system setup procedures.

5. OPERATION

2 REMOTE CONTROLLER

Remote Controller Operation

4 DESCRIPTION OF FUNCTIONS

Emergency Operation and Compressor Delay

Diagnostic Function

Error Codes and Troubleshooting

Explains LED blink patterns, error codes, and troubleshooting for various unit malfunctions.

6. WIRING DIAGRAM

DMB-1822;1832 LH Wiring Diagram

Illustrates the electrical connections for DMB-1822/1832LH models.

DMB-2112;2122 LH Wiring Diagram

DMB-2112;2122 LH Wiring Diagram

Illustrates the electrical connections for DMB-2112/2122LH models.

7. REFRIGERANT CYCLE

Refrigerant Flow and Charge Quantity

8. CONTROL BLOCK DIAGRAM

Indoor and Outdoor Control Logic

9. TROUBLE SHOOTING

Troubleshooting Flowchart

A step-by-step guide to diagnose and resolve common operational problems.

Unit Operation Troubleshooting

Covers error codes, unit not running, fan/compressor issues, and specific component checks.

10. PCB DRIVING DESCRIPTION

11. KEY COMPONENTS OF ELECTRONIC CIRCUIT

MICOM IC Pinouts (Indoor and Outdoor PCBs)

12. DISASSEMBLY INSTRUCTIONS

Indoor Unit Disassembly Procedures

Step-by-step instructions for disassembling the indoor unit.

Outdoor Unit Disassembly Procedures

Step-by-step instructions for disassembling the outdoor unit.

Daewoo DMB-2112LH Specifications

General

Type	Split
Power Supply	220-240V, 50Hz
Refrigerant	R22
Cooling Capacity	12000 BTU/h
Noise Level (Indoor)	38 dB(A)