LG Multi IV Manuals

LG Multi IV Manuals

Manuals and User Guides for LG Multi IV. We have 1 LG Multi IV manual available for free PDF download: Engineering Manual

LG Multi IV Engineering Manual

LG Multi IV Engineering Manual (153 pages)

Brand: LG | Category: Heat Pump | Size: 13.87 MB

Table of Contents

Table of Contents
3
Unit Nomenclature
4
Acronyms
6
- Product Data
  7
- General
  8
- Mechanical Specifications
  8
- Multi V IV Heat Pump and Heat Recovery Outdoor Units
  8
  - Refrigerant System
    8
  - Temperature Ranges
    8
  - Controls
    9
  - Electrical
    9
  - Fans and Motors
    9
- Multi V IV Heat Recovery Units
  9
Single-Frame 208-230V Heat Pump Units
10
General Data
10
Electrical Data
31
Outdoor Unit Dimensions
35
Heat Recovery Unit Dimensions
41
Wiring Diagrams
44
Refrigerant Flow Diagrams
60
Sound Pressure Levels - Measurement Location
89
Acoustic Data
89
Outdoor Unit Accessories
97
Equipment Selection Procedure
102
- Always Use LATS Multi V Software
  103
- Zone the Building–Multi V IV Heat Pump Systems
  103
- Calculate the Ventilation Method
  103
- Designing for Extreme Climatic Conditions
  103
- Capacity Correction
  104
- Heating Season
  104
- Cooling Season
  104
- Select the Indoor Unit(S)
  104
- System Sizing Checks
  105
- Minimum Air Change Requirements
  105
- Check the Indoor Unit Selection(S)
  105
- Frost Accumulation
  105
- Conclusions and Recommendations
  106
- Determine the System Combination Ratio (CR)
  106
- Decoupled Dedicated Outdoor Air System (DDOAS)
  107
Building Ventilation Design Guide
107
Placement Considerations
110
- Heat Pump and Heat Recovery Outdoor Units
  110
  - Selecting the Best Location—Outdoor Units
    110
  - General Mounting
    111
  - Mounting Platform
    111
  - Tie-Downs and Wind Restraints
    111
  - Dealing with Snow and Ice
    111
  - Outdoor Units
    111
  - Installation Space
    112
  - Minimum Space Requirements
    112
  - Installing Outdoor Units Indoors
    113
  - Benefits of Installing Outdoor Units Indoors
    113
  - Design Considerations Include
    113
  - General Guidelines
    113
  - Selecting the Best Location—Indoor Units
    114
  - Installing in an Area Exposed to Unconditioned Air
    114
  - Dimensions for Heat Recovery Units
    115
  - Minimum Service Clearances for Heat Recovery Units
    115
  - Heat Recovery Unit Parts
    115
  - Heat Recovery Unit Types
    116
Refrigerant Piping Design and Layout Best Practices
117
- Creating a Balanced Piping System
  118
- Refrigerant Piping System Quality Assurance
  118
- Piping Design Guideline Summary
  119
- Heat Pump Triple-Frame Connections
  120
- Pipe Sizing for ARUN Series Heat Pump Systems
  120
- Pipe Sizing for ARUB Series Heat Recovery Systems
  124
  - Main Pipe Diameter from Outdoor Unit to First Y-Branch
    125
  - Indoor Unit Y-Branches
    127
- LG Engineered Y-Branch Kits
  127
- LG Engineered Header Kits
  132
- Design Conditions
  134
- LATS Calculated Refrigerant Charge
  134
- Selecting Field-Supplied Copper Tubing
  137
- General Information / Guidelines
  140
  - Layout Procedure
    140
  - Using Elbows
    140
  - No Pipe Size Substitutions
    141
  - Pipe Supports
    141
  - Pipe Sleeves at Penetrations
    142
  - Underground Refrigerant Piping
    142
  - Utility Conduit Sizes
    142
  - Elevation Difference between Outdoor Units
    143
  - Maximum Pipe Length from First ODU Y-Branch to Farthest ODU
    143
  - Oil Trap
    143
  - Refrigerant Piping for Separated Outdoor Units
    143
  - Trapping
    143
  - Allowable Pipe Slope
    144
  - Examples of Inverted Traps
    144
  - Inverted Trap Applications
    144
  - Pipe Slope
    144
  - Brazing Practices
    145
  - Flaring Practices
    145
  - Refrigerant Piping Installation
    145
  - Refrigerant Safety Standards
    145
  - Refrigerant Piping System Insulation
    146
Electrical Connections
147

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