LG Multi V ARWM288CAS5 Water Heat Pump Manuals

Manuals and User Guides for LG Multi V ARWM288CAS5 Water Heat Pump. We have 1 LG Multi V ARWM288CAS5 Water Heat Pump manual available for free PDF download: Service Manual

LG Multi V ARWM288CAS5 Service Manual

LG Multi V ARWM288CAS5 Service Manual (157 pages)

Outdoor Unit R410A

Brand: LG | Category: Heat Pump | Size: 29 MB

Table of Contents

Table of Contents
2
Safety Precautions
3
Part 1 General Information
8
- Model Names
  9
- Indoor Unit
  9
- Outdoor Unit
  10
- Unit
  10
- External Appearance
  11
- Indoor Unit
  11
- Outdoor Unit
  12
- Combination of Outdoor Units
  13
- Nomenclature
  14
- Indoor Unit
  14
- Outdoor Unit
  14
- Unit
  15
Part 2 Outdoor Units
16
- Basic Control
  18
- Normal Operation
  18
- Compressor Control
  18
- Master and Slave Unit's EEV Control
  19
- Special Control
  20
- Oil Return Control
  20
- Stop Operation
  22
- Protection Control
  23
- Pressure Protection Control
  23
- Discharge Temperature Control
  24
- Inverter Protection Control
  24
- Other Control
  25
- Initial Setup
  25
- Cool & Heat Selector
  29
- Outdoor Unit Address
  30
- IDU Capacity Adjusting
  31
- Target Pressure Adjusting
  32
- Geothermal Mode
  33
- Out for Solenoid Valve
  34
- Variable Water Flow Control
  35
- Pump out
  36
- Vacuum Mode
  39
- Back up
  40
- Forced Oil Return
  41
- Cycle Data View
  42
- Refrigerant Noise Reduction Mode
  43
Part 3 HR Units
44
- Specifications
  46
- Parts Functions
  48
- Dimensions
  49
- Piping Diagrams
  51
- Wiring Diagrams
  52
- Functions
  53
Part 4 PCB Setting and Test Run
55
Part 5 Trouble Shooting Guide
87
- The Phenomena from Main Component Failure
  89
- Checking Method for Key Components
  90
- Compressor
  90
- Electronic Expansion Valve
  91
- Inverter Bridge Diode Checking Method
  93
- Inverter IPM/IGBT Checking Method
  94
- Pressure Sensor(High/Low Pressure Sensor)
  95
- Reverse Valve
  96
- Temperature Sensor
  97
- Others
  98
- Self-Diagnosis Function
  99

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