LG ARWN038GA2 Manuals

Manuals and User Guides for LG ARWN038GA2. We have 2 LG ARWN038GA2 manuals available for free PDF download: Installation Operation & Maintenance, Service Manual

LG ARWN038GA2 Installation Operation & Maintenance

LG ARWN038GA2 Installation Operation & Maintenance (92 pages)

Brand: LG | Category: Heat Pump | Size: 6.73 MB

Table of Contents

Table of Contents
3
Safety Precautions

4
- Installation
  4
- Wiring
  6
- Operation
  7
Nomenclature

8
Water Source Unit Specifications

9
- General and Electrical Data
  9
- Dimensions
  10
- Refrigerant Circuits
  11
- Wiring Diagram
  14
- Accessories
  15
Installation

17
Refrigerant Piping Installation

21
- Computer-Assisted Refrigerant Pipe Design
  21
- System Engineering
  22
- Pipe Sizing
  31
- Refrigerant Pipe Connections
  35
- Insulating the Refrigerant Piping System
  38
- Pressure Testing
  40
Water Circuit Installation

41
Electrical System Installation

57
- General Information
  57
- Power Wiring
  58
- Wiring and Cable Terminations
  59
- Communications Cables
  60
Pre-Commissioning and Maintenance

63
Error Codes

77
- LG Monitoring View (LGMV) Diagnostic Software
  77
- Error Code Tables
  79
Checklists

83

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LG ARWN038GA2 Service Manual

LG ARWN038GA2 Service Manual (81 pages)

Outside Unit Multi-V Water Mini Series

Brand: LG | Category: Heat Pump | Size: 6.37 MB

Table of Contents

Table of Contents

2
- Safety Precautions
  3
- Part 1 General Information
  10
  - Model Names
    11
  - External Appearance
    11
  - Nomenclature
    12
- Part 2 Outside Units
  13
Function

15
- 1 Basic Control
  
  16
  - Compressor Control
    16
  - Normal Operation
    16
  - Master and Slave Unit's EEV Control
    17
  - Indoor Unit
    18
    
    Stopping Operation
    20
- 2 Special Control
  
  18
  - Oil Return Control
    18
- 3 Protection Control
  
  21
  - Pressure Protection Control
    21
  - Discharge Temperature Control
    22
  - Inverter Protection Control
    22
  - Liquid Back Control
    23
  - Pressure Switch
    23
- 4 Other Control
  
  24
  - Initial Setup
    24
  - Vacuum Mode
    26
  - Black Box Function
    27
  - Test Run
    28
  - Part 3 Test Run
    29
    
    Dip Switch Setting
    31
  - Part 4 Trouble Shooting Guide
    34
Trouble Shooting Guide

35
- 1 The Phenomena from Main Component Failure
  
  36
- 2 Checking Method for Key Components
  
  37
  - Compressor
    37
  - Electronic Expansion Valve
    38
  - Inverter IPM Checking Method
    41
  - Other
    42
- 3 Self-Diagnosis Function
  
  43
  - Troubleshooting Guide
    46

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