LG Multi V Water IV - Page 28

LG Multi V Water IV

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28

MULTI V Water IV System Installation Manual

Due to our policy of continuous product innovation, some specifications may change without notification.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

PRHR032A

HEAT RECOVERY UNIT DIMENSIONS

Table of Contents

Default Chapter3
- Table of Contents3
Safety Precautions4
Unit Nomenclature8
General Data9
- ARWN Series Heat Pump Water Source Unit Specifications9
- ARWB Series Heat Recovery Water Source Unit Specifications15
- Heat Recovery Unit Specifications and Electrical Data21
Electrical Data22
- ARWN Series Heat Pump Water Source Units22
- ARWB Series Heat Recovery Water Source Units23
Water Source Unit Dimensions24
- Single Frame Heat Pump and Heat Recovery24
- Dual Frame Heat Pump and Heat Recovery25
- Triple Frame Heat Pump and Heat Recovery26
- Heat Recovery Units27
Refrigerant Flow Diagrams30
- ARWN Heat Pump Systems30
  - Heating Operation31
- ARWB Heat Recovery Systems32
- PRHR022A, PRHR032A, PRHR042A Heat Recovery Units36
Cut Sheets37
- Water Source Unit Y-Branch Kits for Heat Pump Systems37
- Indoor Unit Y-Branch Kits for Heat Pump Systems38
- Water Source Unit Y-Branch Kits for Heat Recovery Systems39
- Indoor Unit Y-Branch Kits for Heat Recovery Systems40
- Header Kits41
Installation43
- Placement Considerations43
- Transporting/Lifting the Water Source Unit44
- Water Source Unit Minimum Space Requirements45
- General Mounting / Anchoring the Water Source Unit47
- Heat Recovery Box Minimum Space Requirements48
Refrigerant Piping Installation49
- Computer-Assisted Refrigerant Pipe Design49
- Pipe Sizing for ARWN Series Heat Pump Systems59
- Pipe Sizing for ARWB Series Heat Recovery Systems62
- Pipe Layout65
- Refrigerant Pipe Connections68
- Insulating the Refrigerant Piping71
- Pressure (Leak) Testing73
Water Circuit Installation75
- Water Circuit Design75
- Field-Supplied Components for WSU Installation77
- Piping System Specifications78
ELECTRICAL System Installation84
- General Information84
- Power Wiring85
- Communication Cable86
- ARWN Series Heat Pump Systems (208-230V and 460V)87
- ARWB Series Heat Recovery Systems (208-230V and 460V)88
- IDU Communication Cable89
- Zone Control of Indoor Units90
- Communication Cable91
- Option Settings for All Water Source Units92
Pre-Commissioning94
- Preparing the Electrical System / Indoor Unit Auto Addressing94
- Group Control / Central Control98
- Indoor Unit Temperature Sensing Strategy/Air Balance101
- Prepare the Refrigerant Piping System107
Maintenance111
- Maintaining the Heat Exchanger111
- General Maintenance Schedule112
LG Monitoring View (LGMV) Diagnostic Software114
Error Code Tables116
Installation Checklist124
Pre-Commissioning Checklist126
Refrigerant Charge Worksheet130
WSU Factory Refrigerant Charge131

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