LG B2421HL Room Air Conditioner Manuals

Manuals and User Guides for LG B2421HL Room Air Conditioner. We have 1 LG B2421HL Room Air Conditioner manual available for free PDF download: Service Manual

LG B2421HL Service Manual

LG B2421HL Service Manual (65 pages)

Room Air Conditioner

Brand: LG | Category: Air Conditioner | Size: 1.97 MB

Table of Contents

Table of Contents
2
Functions
3
- Remote Controller
  4
- Operation ON/OFF
  4
- Operation Mode Selection
  4
- Fan Speed Selection
  4
Product Specifications (Cooling Only)
5
Product Specifications (Cooling & Heating)
6
Dimensions
7
Outdoor Unit
8
Refrigeration Cycle Diagram
9
Wiring Diagram
11
Operation Details
13
- Cooling Mode Operation
  14
- Cooling or Heating Mode with Sleep Mode Auto Operation
  14
- Cooling Mode with the Sleep Mode
  14
- Heating Mode with the Sleep Mode
  14
- Auto Operation
  15
- Auto Operation for Cooling
  15
- 1/F Rhythm Louver Operation
  16
- Auto Operation for Heating
  16
- Auto Operation for Soft Dry
  16
- Natural Wind by CHAOS Logic
  17
- GRAPH of Natural Wind by the CHAOS Logis
  17
- Heating Mode Operation
  18
- Hot-Start Control
  18
- Deice Control
  19
- Soft Dry Operation
  19
- Forced Operation
  20
- Protection of the Evaporator Pipe from Frosting
  20
- Inlet Grille Open
  20
- Test Operation
  20
- Cooling Model
  21
- Heating Model
  21
Display Function
21
Self-Diagnosis Function
21
Installation
22
Operation
39
Disassembly of the Parts (Indoor Unit)
41
- 2-Way Valve (Liquid Side)
  45
- 3-Way Valve (Gas Side or Liquid Side)
  45
2-Way, 3-Way Valve
45
- Pumping down
  46
- Re-Air Purging
  47
- Balance Refrigerant of the 2-Way, 3-Way Valves
  48
- Evacuation
  49
- Gas Charging
  50
- After Evacuation
  50
- Trouble Analysis
  51
- Check Temperature and Pressure of Refrigeration Cycle
  51
Cycle Troubleshooting Guide
51
The Unit Does Not Operate
52
Electronic Parts Troubleshooting Guide
52
Electronic Control Device
56
Schematic Diagram
57
Exploded View and Replacement Parts List
58
- Parts List (Cooling Only Models)
  59
- Parts List (Heat Pump Models)
  60

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