Table Of Contents - LG Multi V ARNU073M2A4 Installation Manual

Safety Instructions ......................................................................... 4
Introduction .................................................................................... 9
Unit Nomenclature ....................................................................... 11
R410A Refrigerant ....................................................................... 12
General Data ............................................................................... 13
Specifications − High-Static M2 Chassis ...........................................13
Specifications − High-Static M2 and M3 Chassis ...............................14
Specifications − High-Static B8 Chassis.............................................15
Specifications − Convertible Mid-Static MA Chassis ..........................16
Specifications − Mid-Static M1 Chassis..............................................17
Specifications − Mid-Static M2 Chassis..............................................18
Specifications − Mid-Static M3 Chassis..............................................19
Specifications − Low-Static Ducted L1/L2/L3 Chassis .......................20
Specifications − Vertical Air Handling Unit NJ Chassis .......................21
Specifications − Vertical Air Handling Unit NK Chassis ......................22
Electrical − Mid and High-Static M1/M2/M3/B8 Chassis ....................23
Electrical − Low-Static Ducted L1/L2/L3 Chassis ...............................24
Electrical − Vertical Air Handling Unit NJ/NK Chassis ........................25
Dimensions - High-Static Ducted B8 Chassis ....................................26
Dimensions - Mid and High-Static Ducted M2 Chassis .....................27
Dimensions - Mid and High-Static Ducted M3 Chassis .....................28
Dimensions - Mid-Static Ducted MA Chassis ....................................29
Dimensions - Mid-Static Ducted M1 Chassis .....................................30
Dimensions - Low-Static Ducted L1/L2/L3 Chassis ...........................31
Dimensions - Vertical Air Handling Unit NJ Chassis ..........................32
Dimensions - Vertical Air Handling Unit NK Chassis..........................33
Refrigerant Piping Diagrams ..............................................................34
Installation Guidelines ................................................................. 35
General Installation Guidelines ...........................................................35
Install Ducted IDU Chassis .................................................................36
Indoor Unit Dimensions ......................................................................37
Duct Connection Dimensions .............................................................38
Maintenance Clearances ....................................................................39
Vertical Install for Convertible Mid Static (MA Only) ...........................40
General Mounting - V / H Air Handler Units ........................................44
Piping Connections .............................................................................46
Due to our policy of continuous product innovation, some specifications may change without notification.
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TABLE OF CONTENTS

Refrigerant Piping ........................................................................ 47
Condensate Piping ...................................................................... 51
Wiring .......................................................................................... 54
General Information / Separating Wiring and Cables .........................54
Power Wiring / Communication Cable Connections ...........................55
Power Supply / Power Wiring Specifications ......................................56
Communications Cable Specifications ...............................................57
Indoor Unit Communications Cable Connections ...............................60
Connection Procedure ........................................................................63
LGRED°, HRU Comp, and Gen 4 DIP Switch Settings ......................65
Controller and Opt. Wall-Mounted Sensor Install ...............................66
High-Static Ducted B8 Chassis ..........................................................67
Mid-Static and High-Static Ducted M2 Chassis ..................................69
Mid-Static and High-Static Ducted M3 Chassis ..................................71
Convertible Mid-Static Ducted MA Chassis ........................................73
Mid-Static Ducted M1 Chassis ...........................................................75
Low-Static Ducted L1 Chassis ............................................................77
Low-Static Ducted L2/L3 Chassis .......................................................79
Vertical Air Handling Unit NJ Chassis .................................................81
Vertical Air Handling Unit NK Chassis ................................................83
Controls Setup ............................................................................. 85
Installation Checklist .................................................................... 90
Limited Warranty ......................................................................... 92
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