LG Multi V PRHR023A Manuals

Table of Contents

• 2

  Important Safety Instructions

  • 4

    Table of Contents

• 2

  Tips for Saving Energy

• 5

  Outdoor Units Information

• 5

  Alternative Refrigerant R410A

• 5

  Select the Best Location

• 5

  Installation Process

• 7

  Installation Space

  • 8

    Air Guide Work

• 9

  Installation

  • 9

    The Location of the Anchor Bolts
  • 9

    Foundation for Installation
  • 10

    Preparation of Piping
  • 11

    Plumbing Materials and Storage Methods

• 9

  Lifting Method

• 12

  Refrigerant Piping Installation

  • 12

    Precautions on Pipe Connection / Valve Operation
  • 13

    Installation Procedure for HR Unit
  • 13

    Installation of Outdoor Unit, HR Unit, Indoor Unit Refrigerant Pipe
  • 13

    Type of HR Unit
  • 14

    Installation of Zoning Control
  • 15

    Precautions on Pipe Connection / Valve Operation

• 17

  Pipe Connections between Indoor and Outdoor Unit

  • 17

    Preparation Work
  • 18

    Pipe Drawing out During Single Connection
  • 18

    Refrigerant Piping System
  • 21

    Preparation Work
  • 21

    Pipe Drawing out During Single Connection
  • 22

    Refrigerant Piping System
  • 24

    Refrigerant Charging
  • 24

    Branch Pipe Fitting
  • 29

    Distribution Method
  • 29

    Vacuum Mode
  • 30

    Leak Test and Vacuum Drying
  • 31

    Thermal Insulation of Refrigerant Piping

• 32

  Electrical Wiring

  • 33

    Control Box and Connecting Position of Wiring
  • 33

    Communication and Power Cables
  • 34

    Wiring of Main Power Supply and Equipment Capacity
  • 34

    Field Wiring
  • 36

    Checking the Setting of Outdoor Units
  • 37

    Switch for Setup of HR Unit
  • 41

    Automatic Addressing
  • 41

    The Procedure of Automatic Addressing
  • 42

    Flow Chart of Auto Pipe Detection Process
  • 43

    Flow Chart of Manual Addressing for Pipe Detection
  • 43

    Example of Manual Valve Addressing (Non-Zoning Setting)
  • 44

    Example of Manual Valve Addressing (Zoning Setting)
  • 44

    Method of Checking the Pipe Detection Result at HR Unit
  • 44

    Identification of Manual Valve ID (Address)
  • 44

    Method of Checking the Pipe Detection Result at Outdoor Unit
  • 44

    Setting Method of Master Indoor Unit in Zoning
  • 45

    Group Number Setting
  • 45

    Cool & Heat Selector (Fn 1)
  • 46

    High Static Pressure Compensation Mode (Fn 2)
  • 46

    Night Low Noise Function (Fn 3)
  • 46

    Setting the ODU Address (Fn 5)
  • 47

    Snow Removal & Rapid Defrost (Fn 6)
  • 47

    Target Pressure Adjusting (Fn 8)
  • 48

    Self-Diagnosis Function

• 50

  Caution for Refrigerant Leak

  • 50

    Introduction
  • 50

    Checking Procedure of Limiting Concentration