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LG ARNU073TUC4 Instruction Manual
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LG ARNU073TUC4 Instruction Manual

Multi v ceiling cassette indoor unit
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CEILING CASSETTE INDOOR UNIT
1-Way Models:
• ARNU073TUC4
• ARNU093TUC4
• ARNU123TUC4
• ARNU183TTC4
• ARNU243TTC4
2-Way Models:
• ARNU183TLC4
• ARNU243TLC4

INSTALLATION MANUAL

4-Way 2' x 2' Models:
• ARNU053TRC4
• ARNU073TRC4
• ARNU093TRC4
• ARNU123TRC4
• ARNU153TQC4
• ARNU183TQC4
4-Way 3' x 3' Models:
• ARNU243TPC4
• ARNU283TPC4
• ARNU363TNC4
• ARNU423TMC4
• ARNU483TMC4

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Summary of Contents for LG ARNU073TUC4

  • Page 1: Installation Manual

    CEILING CASSETTE INDOOR UNIT INSTALLATION MANUAL 1-Way Models: • ARNU073TUC4 • ARNU093TUC4 • ARNU123TUC4 4-Way 2’ x 2’ Models: • ARNU183TTC4 • ARNU053TRC4 • ARNU243TTC4 • ARNU073TRC4 • ARNU093TRC4 • ARNU123TRC4 • ARNU153TQC4 • ARNU183TQC4 2-Way Models: 4-Way 3’ x 3’ Models: •...

  • Page 2: Proprietary Data Notice

    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

    Controls Setup ............................... 51 Installation Checklist ............................55 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

    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 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

    • 3/8” or 1/2” Threaded hanger rods • Additional drain hose 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 ARNU073TUC4 Ceiling Cassette 1-Way ARNU093TUC4 ARNU123TUC4 ARNU183TTC4 ARNU243TTC4 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

    C = Plasma Filter 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

    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

    Power wiring is field supplied and must comply with the applicable local and national codes. Power Supply (V/Hz/Ø): 208-230/60/1 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

    Power wiring is field supplied and must comply with the applicable local and national codes. Power Supply (V/Hz/Ø): 208-230/60/1 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 Power wiring is field supplied and must comply with the applicable local and national codes. Power Supply (V/Hz/Ø): 208-230/60/1 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 Power wiring is field supplied and must comply with the applicable local and national codes. Power Supply (V/Hz/Ø): 208-230/60/1 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: Dimensions

    GENERAL DATA Dimensions – TR 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 18 GENERAL DATA Dimensions – TQ 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 19 GENERAL DATA Dimensions – TP 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 20 GENERAL DATA Dimensions – TN 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 21 GENERAL DATA Dimensions – TM 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 22 GENERAL DATA Dimensions – TL 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 23 ±1/4 in. 1-3/8 19-11/16 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 ±1/4 in. 1-5/16 19-11/16 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 Data

    • Select wire size based on the larger MCA value • Use circuit breakers instead of fuses 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: Refrigerant Piping Diagrams

    Outdoor Unit EEV = Electronic Expansion Valve 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 27: General Installation Guidelines

    Over 36 kBtu: at least 70 - 7/8; not more than 165 - 11/32 Unit: inch 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: Inspection

    11. If the unit is undamaged, remove and retain the installation manual. It is located under or on top of the 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 29: Installation

    30-15/16 (Hanging bolt) 22-7/16 33-1/16 Unit size 18-1/8 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 30 Figure 14: Level Chassis Ceiling Ceiling board Level gauge 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: Refrigerant Piping

    R=0.4 – 0.8 ≤76,400 3/4 – 13/16 5/8 – 11/16 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: Piping Materials And Handling

    24 hours 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: Refrigerant Safety

    (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 34: Refrigerant Pipe Connections

    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: Wiring

    Wall Controller IDU to ODU Communication Connections (Optional) 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: 4-Way Cassette Tr, Tq Chassis

    4-Way Cassette TR, TQ Chassis Figure 22: TR, TQ 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 37 Gen 2 data rate is 1.2kbps. Gen 4 data rate is 9.6kbps. 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: 4-Way Cassette Tp, Tn, Tm Chassis

    Figure 23: TP, TN, TM 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 39 Gen 2 data rate is 1.2kbps. Gen 4 data rate is 9.6kbps. 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: 2-Way Cassette Tl Chassis

    CN-REMO connector. 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 2-Way Cassette TL Chassis Figure 25: TL 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 42 Gen 2 data rate is 1.2kbps. Gen 4 data rate is 9.6kbps. 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: 1-Way Cassette Tt, Tu Chassis

    CN-REMO connector. 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 1-Way TT, TU Chassis Figure 27: TT, TU 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 45 Gen 2 data rate is 1.2kbps. Gen 4 data rate is 9.6kbps. 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: Optional Wall-Mounted Sensor And Controller

    (55) inches above the finished floor. • 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 47: Install Decoration Panel

    Cassette chassis against Decoration panel decoration panel with no gap 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: 2-Way Cassette

    Decorative panel attaching screws Push Ratch pull Inlet Grille 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: 1-Way Cassette

    Ratch pull In le t G rille Inlet Grille 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: Drain Pipe Installation

    Indoor Unit Drain pipe (field supplied) Elbow Drain pump 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: Controls Setup

    • Set only one indoor unit to Master, set the others to Slave • This indoor unit can be connected in a control group with any other types of LG indoor units • It is possible to use a wireless remote controller at the same time as the wall controller •...

  • Page 52: Group Control

    ▪ Do not connect 12V line between slave indoor units Master Slave Signal 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 FAU: Fresh Air Intake Unit Standard: Standard Indoor Unit ZC: Zone 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 54: Remote Control

    Remote Master Sensor Display Error Message Signal Master 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: 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 56 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 57 Installation, Startup, and Commissioning Technical Assistance 1-888-865-3026 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 58 20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics LG Customer Information Center, Commercial Products Commercial Air Conditioning Division 1-888-865-3026 USA 11405 Old Roswell Road Follow the prompts for commercial A/C products and parts. Alpharetta, Georgia 30009 IM-MultiV-IV-CeilingCassette-01-15 www.lghvac.com Original Issue...

This manual is also suitable for:

Arnu093tuc4Arnu123tuc4Arnu183tlc4Arnu243tlc4Arnu243ttc4Arnu053trc4 ... Show all

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