Table Of Contents - LG MULTI V ARNH423K3A4 Installation Manual

Safety Precautions ............................................................................. 4-8
General Data ..................................................................................... 9-18
Unit Nomenclature............................................................................... 9
Introduction........................................................................................ 10
Parts ...................................................................................................11
Features ............................................................................................ 12
.................................................................................... 13
Electrical Data ................................................................................... 14
Dimensions .................................................................................. 15-16
Wiring Diagram - ARNH423K3A4, ARNH763K3A4 ......................... 17
Refrigerant Piping Diagram ............................................................... 18
Accessories .................................................................................... 19-21
Installing the Hydro Kit .................................................................. 22-26
Location Selection ............................................................................. 22
Unpack / Inspect, Transporting / Lifting ............................................. 23
Transporting / Lifting, Clearance........................................................ 24
Foundation and Mounting Requirements, Anchoring ....................... 25
Placing the Hydro Kit Controller ........................................................ 26
Installing the Refrigerant Piping ................................................... 27-30
Refrigerant Piping Connections /
Refrigerant Piping Materials and Handling ....................................... 27
Cutting the Refrigerant Piping / Brazing Procedure .......................... 28
Pipe Supports .................................................................................... 29
Heat Recovery Unit Refrigerant Piping Connections ......................... 30
Insulation......................................................................................... 31-32
Installing the Condensate Piping....................................................... 33
Installing the Water Circuit ............................................................ 34-46
Connections / Guidelines / Water Quality .......................................... 34
Antifreeze Additives ........................................................................... 35
Water Circuit Components............................................................ 36-42
Application Options....................................................................... 43-46

TABLE OF CONTENTS

TABLE OF CONTENTS
Wiring .............................................................................................. 47-70
General Information / Separating Wiring and Cables ........................ 47
Power Wiring / Communication Cable /
Terminal Connections ........................................................................ 48
Connecting the Wiring and Cables ............................................... 51-52
Connecting Included Hydro Kit Accessories................................. 53-57
Connecting Optional LG Hydro Kit Accessories ........................... 58-63
Connecting Third-Party Accessories............................................. 64-69
Resistance Test ................................................................................. 70
Controller Installation .................................................................... 71-72
Controller Operation ...................................................................... 73-83
Pre-Startup...................................................................................... 84-98
Hydro Kit DIP Switch Settings ........................................................... 84
Enter Installer Mode ......................................................................... 85
Functions ...................................................................................... 86-93
Central Control ............................................................................. 94-96
Hydro Kits with Heat Recovery Units............................................ 97-98
Finishing the Installation .................................................................... 99
Maintenance....................................................................................... 100
Troubleshooting / Error Codes......................................................... 101
Troubleshooting ......................................................................... 102-104
Emergency Operation ................................................................ 105-106
Installation Checklist ................................................................. 107-108
.............................................................. 49
.............................................. 50
..................................................... 109
3