LG Multi V ARNU073M2A4 Installation Manual
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LG Multi V ARNU073M2A4 Installation Manual

LG Multi V ARNU073M2A4 Installation Manual

Ducted indoor units
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High Static Ducted Indoor Units
ARNU073M2A4
ARNU183M2A4
ARNU093M2A4
ARNU243M2A4
ARNU123M2A4
ARNU283M3A4
ARNU153M2A4
Mid Static Ducted Indoor Units
ARNU073M1A4
ARNU283M2A4
ARNU093M1A4
ARNU363M2A4
ARNU123M1A4
ARNU423M2A4
ARNU153M1A4
ARNU483M3A4
ARNU183M1A4
ARNU543M3A4
ARNU243M1A4
DUCTED INDOOR UNITS
INSTALLATION MANUAL
High Static Ducted Indoor Units
ARNU363B8A4
ARNU423B8A4
ARNU483B8A4
ARNU763B8A4
ARNU963B8A4
Low-Static Ducted Indoor Units
ARNU073L1G4
ARNU153L2G4
ARNU093L1G4
ARNU183L2G4
ARNU123L2G4
ARNU243L3G4
Convertible Mid Static Ducted Indoor Units
ARNU073MAA4
ARNU093MAA4
ARNU123MAA4
ARNU153MAA4
ARNU183MAA4
ARNU243MAA4
Vertical Air Handling
Indoor Units
ARNU123NJA4
ARNU183NJA4
ARNU243NJA4
ARNU303NJA4
ARNU363NJA4
ARNU423NKA4
ARNU483NKA4
ARNU543NKA4

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Summary of Contents for LG Multi V ARNU073M2A4

  • Page 1 DUCTED INDOOR UNITS INSTALLATION MANUAL High Static Ducted Indoor Units High Static Ducted Indoor Units Convertible Mid Static Ducted Indoor Units ARNU363B8A4 ARNU073M2A4 ARNU183M2A4 ARNU073MAA4 ARNU423B8A4 ARNU093M2A4 ARNU243M2A4 ARNU093MAA4 ARNU483B8A4 ARNU123M2A4 ARNU283M3A4 ARNU123MAA4 ARNU763B8A4 ARNU153M2A4 ARNU153MAA4 ARNU963B8A4 ARNU183MAA4 ARNU243MAA4 Mid Static Ducted Indoor Units Low-Static Ducted Indoor Units Vertical Air Handling Indoor Units...
  • Page 2 For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice. ©LG Electronics U.S.A., Inc. This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.

  • Page 3: Table Of Contents

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

  • Page 4: Safety Instructions

    Wear protective gloves when handling equipment. Sharp edges may cause personal injury. 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.
  • Page 5 U.S. Environmental Protection Agency (EPA) rules. 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.
  • Page 6 Do not allow strain on this cable. Poor cable connections can cause equipment malfunction. 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.
  • Page 7 There is risk of unit failure. 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.
  • Page 8 • Connecting cable (power and control) • 3/8” or 1/2” threaded hanger rods 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.

  • Page 9: Introduction

    Parts required will be different depending if the installation is on the floor or the wall. 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.
  • Page 10 ARNU123NJA4 ARNU183NJA4 ARNU243NJA4 ARNU303NJA4 ARNU363NJA4 ARNU423NKA4 ARNU483NKA4 ARNU543NKA4 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.

  • Page 11: Unit Nomenclature

    Feature G = Low-Static Generation 4 = Fourth 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.

  • Page 12: R410A Refrigerant

    551 psi design pressure of R410A. Inadequate piping may fail when pressurized. 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.

  • Page 13: General Data

    Source Units produced after February 2019. 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.

  • Page 14: Specifications − High-Static M2 And M3 Chassis

    Source Units produced after February 2019. 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.

  • Page 15: Specifications − High-Static B8 Chassis

    Source Units produced after February 2019. 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.

  • Page 16: Specifications − Convertible Mid-Static Ma Chassis

    Source Units produced after February 2019. 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.

  • Page 17: Specifications − Mid-Static M1 Chassis

    Source Units produced after February 2019. 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.

  • Page 18: Specifications − Mid-Static M2 Chassis

    Source Units produced after February 2019. 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.

  • Page 19: Specifications − Mid-Static M3 Chassis

    Source Units produced after February 2019. 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.

  • Page 20: Specifications − Low-Static Ducted L1/L2/L3 Chassis

    Source Units produced after February 2019. 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.

  • Page 21: Specifications − Vertical Air Handling Unit Nj Chassis

    Source Units produced after February 2019. communication cable at any other point. 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.

  • Page 22: Specifications − Vertical Air Handling Unit Nk Chassis

    Source Units produced after February 2019. communication cable at any other point. 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.

  • Page 23: Electrical − Mid And High-Static M1/M2/M3/B8 Chassis

    Select wire size based on the larger MCA value. 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.

  • Page 24: Electrical − Low-Static Ducted L1/L2/L3 Chassis

    Max. power input is rated at maximum setting value. 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.

  • Page 25: Electrical − Vertical Air Handling Unit Nj/Nk Chassis

    Max. power input is rated at maximum setting value. 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.

  • Page 26: Dimensions - High-Static Ducted B8 Chassis

    GENERAL DATA Dimensions – High-Static Ducted B8 Chassis 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.

  • Page 27: Dimensions - Mid And High-Static Ducted M2 Chassis

    24-3/8 10-11/16 7-7/8 10-11/16 16-9/16 7-7/32 6-19/32 5-15/32 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.

  • Page 28: Dimensions - Mid And High-Static Ducted M3 Chassis

    11-7/16 24-3/8 12-3/4 14-27/32 7-3/8 6-27/32 5-1/2 1-3/32 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.

  • Page 29: Dimensions - Mid-Static Ducted Ma Chassis

    GENERAL DATA Dimensions – Mid-Static Ducted MA Chassis 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.

  • Page 30: Dimensions - Mid-Static Ducted M1 Chassis

    GENERAL DATA Dimensions – Mid-Static Ducted M1 Chassis 7-7/8 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.

  • Page 31: Dimensions - Low-Static Ducted L1/L2/L3 Chassis

    Flange 5-7/8 41-3/4 13/16 Bottom 6-1/16 41-11/16 Flange 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.

  • Page 32: Dimensions - Vertical Air Handling Unit Nj Chassis

    Dimensions – Vertical Air Handling Unit NJ Chassis 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.

  • Page 33: Dimensions - Vertical Air Handling Unit Nk Chassis

    20-1/4 2-7/16 2-7/16 Unit: inch Bottom View 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.

  • Page 34: Refrigerant Piping Diagrams

    Line Refrigerant Pipes to Outdoor Unit Liquid Line 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.

  • Page 35: Installation Guidelines

    2. Cut the white reinforced nylon straps. Open the top of the box and fold back all four flaps. 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.

  • Page 36: Install Ducted Idu Chassis

    Note: • It may be necessary to use a handy box that is sized in metric units, depending on the controller model. Check with your LG representative to verify which size of handy box is needed for the zone controller in question.

  • Page 37: Indoor Unit Dimensions

    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.

  • Page 38: Duct Connection Dimensions

    5-7/8 41-3/4 13/16 Bottom 6-1/16 41-11/16 No Flange 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.

  • Page 39: Maintenance Clearances

    *Does not apply when the ceiling surface below can be removed. 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.

  • Page 40: Vertical Install For Convertible Mid Static (Ma Only)

    (M10 / L100, Four [4] Each) (Field Supplied) 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.
  • Page 41 Step 5B. Pre-filter Pre-filter Metal Mesh 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.
  • Page 42 Fire and electrical shock can cause physical injury or death. Step 3.. 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.
  • Page 43 Air Inlet Back / Bottom Air Outlet Panel Pre-Filter 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.

  • Page 44: General Mounting - V / H Air Handler Units

    NK Frames ARNU423NKA4 42,000 ARNU483NKA4 48,000 ARNU543NKA4 54,000 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.
  • Page 45 / communications cable Minimum 14 inches 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.

  • Page 46: Piping Connections

    Information about ASHRAE Standard 15-2010 / 34-2010 and addenda current as of the date of this publication. 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.

  • Page 47: Refrigerant Piping

    15.88 ~ 19.7 (49/64 - 25/32) 19.05 ─ 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.
  • Page 48 1 hour. 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.
  • Page 49 (no air bubbles) Valve Tank 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.
  • Page 50 Ensure insulation on all pipe passing through pipe hangers, inside conduit, and/or sleeves is not compressed. 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.

  • Page 51: Condensate Piping

    Y-45 fitting. 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.
  • Page 52 Drain Hole Drain Hole Air Outlet Air Outlet Floor 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.
  • Page 53 Drain hose clip (provided) Drain pan 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.

  • Page 54: Wiring

    Do not run the power wiring and the communication cable in the same conduit. It will result in equipment malfunction. • 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.

  • Page 55: Power Wiring / Communication Cable Connections

    Do not include splices or wire nuts in the communication cable. 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.

  • Page 56: Power Supply / Power Wiring Specifications

    Failure to properly provide a National Electrical Code-approved earth ground can result in property damage and equipment malfunction. 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.

  • Page 57: Communications Cable Specifications

    Heat Recovery Units • Communication cable from Main Outdoor Unit to Indoor Units / Heat Recovery Units is to be LG supplied or field supplied 18 AWG, 2-con- ductor, twisted, stranded, shielded. Never splice communications cable. Ensure the communication cable shield is properly grounded to the Main Outdoor Unit chassis only.
  • Page 58 Wiring must comply with all applicable local and national codes. • If using LG supplied cable and the length needs to be extended, the LG Extension Kit (sold separately) must be used. A maximum of four (4) kits (up to 165 feet) can be used.
  • Page 59 • Indoor unit connections depend on indoor unit type. 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.

  • Page 60: Indoor Unit Communications Cable Connections

    Communication Cable Between IDUs / HRUs / ODU(s) 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.
  • Page 61 Power Input 208-230V / 60 Hz / 1 Phase 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.
  • Page 62 Power Input 208-230V / 60 Hz / 1 Phase 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.

  • Page 63: Connection Procedure

    Don’ts • Never use wire caps and never splice communications cables. • Never connect zone controllers or other central controllers or LG building management system gateways to the indoor unit / outdoor unit communications cable. Connection Procedure Indoor unit installation best practices are to connect control wiring (low voltage) and then connect power wiring (high voltage).
  • Page 64 See the wiring diagram for the specific indoor unit. 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.

  • Page 65: Lgred°, Hru Comp, And Gen 4 Dip Switch Settings

    (see table). LG VRF systems can operate with both old 2A heat recovery units and new 3A heat recovery units if the outdoor unit software has been upgraded. If a system includes a mix of both old and new heat recovery units, system design must follow 2A heat recovery unit series piping rules.

  • Page 66: Controller And Opt. Wall-Mounted Sensor Install

    (4) to five (5) feet above the finished floor. • It may be necessary to use a handy box that is sized in metric units, depending on the sensor model. Check with your LG representative to verify which size of handy box is needed for the sensor in question.

  • Page 67: High-Static Ducted B8 Chassis

    Figure 69: High-Static Ducted B8 Chassis Wiring Diagram. 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.
  • Page 68 IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 69: Mid-Static And High-Static Ducted M2 Chassis

    Figure 70: Mid-Static and High-Static Ducted M2 Chassis Wiring Diagram. 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.
  • Page 70 IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 71: Mid-Static And High-Static Ducted M3 Chassis

    Figure 71: Mid-Static and High-Static Ducted M3 Chassis Wiring Diagram. 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.
  • Page 72 IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 73: Convertible Mid-Static Ducted Ma Chassis

    Figure 72: Convertible Mid-Static Ducted MA Chassis Wiring Diagram L(L1) N(L2) POWER INPUT 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.
  • Page 74 IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 75: Mid-Static Ducted M1 Chassis

    Figure 73: Mid-Static Ducted M1 Chassis Wiring Diagram 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.
  • Page 76 IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 77: Low-Static Ducted L1 Chassis

    Figure 74: Low-Static Ducted L1 Chassis Wiring Diagram. 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.
  • Page 78 IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 79: Low-Static Ducted L2/L3 Chassis

    Figure 75: Low-Static Ducted L2/L3 Chassis Wiring Diagram. 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.
  • Page 80 IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 81: Vertical Air Handling Unit Nj Chassis

    Figure 76: Vertical Air Handling Unit NJ Chassis Wiring Diagram. 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.
  • Page 82 Water IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 83: Vertical Air Handling Unit Nk Chassis

    Figure 77: Vertical Air Handling Unit NK Chassis Wiring Diagram 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.
  • Page 84 Water IV, Multi V S Engineering Manuals for additional information. 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.

  • Page 85: Controls Setup

    The method and configuration of controlling indoor units will vary according to system requirements, and the indoor unit(s) installed. The next few pages show examples of typical control configurations. Some configurations require LG group control kits and cables (sold separately);...
  • Page 86 Handheld Controller Main Main MultiSITE CRC1 MultiSITE CRC1 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.
  • Page 87 * OAU : Outside Air Intake Unit Standard: Standard Indoor Unit 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.
  • Page 88 Simple Simple Handheld Remote Remote Controller Controller Controller 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.
  • Page 89 Remote Main Sensor Display Error Message Signal Main 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.

  • Page 90: Installation Checklist

    Double layer insulation is provided at pipe supports and wall penetrations. 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.
  • Page 91 Power and communications cables are properly restrained and separated. 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.

  • Page 92: Limited Warranty

    “The product’s full Limited Warranty terms and conditions and arbitration requirements are available at https://www.lghvac.com." 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.
  • Page 93 Your LG Manufacturer Representative For warranty information, visit www.lghvac.com. 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.
  • Page 94 20001747 ISO 9001: 2008 LG ELECTRONICS INC. IM_MultiV_Ducted_IDU_04_24 Supersedes: IM_MultiV_Ducted_IDU_02_24 IM_MultiV_Ducted_IDU_5_21 IM_MultiV_Ducted_IDU_10_20 LG Electronics, U.S.A., Inc. IM_MultiV_Ducted_IDU_08_20 Air Conditioning Technologies IM_MultiV_Ducted_IDU_05_20 4300 North Point Parkway IM_MultiV_Ducted_IDU_12_19 IM_MultiV_Ducted_IDU_5_16 Alpharetta, Georgia 30022 IM-MultiV-DuctedIDU-08-14 www.lghvac.com...

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