LG MultiSITE CRC1+ Installation Manual
LG MultiSITE CRC1+ Installation Manual

LG MultiSITE CRC1+ Installation Manual

Hide thumbs Also See for MultiSITE CRC1+:
Table of Contents

Advertisement

Quick Links

MultiSITE CRC1 Series Controllers
PREMTBVC0 – MultiSITE CRC1
PREMTBVC1 – MultiSITE CRC1+
INSTALLATION MANUAL
2:43 PM
09-26-2017
Occ Auto Heat
Auto
Indoor °F
74°
Humidity
66 %
78
68

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MultiSITE CRC1+ and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for LG MultiSITE CRC1+

  • Page 1 MultiSITE CRC1 Series Controllers INSTALLATION MANUAL 2:43 PM 09-26-2017 Occ Auto Heat Auto Indoor °F 74° Humidity 66 % PREMTBVC0 – MultiSITE CRC1 PREMTBVC1 – MultiSITE CRC1+...
  • Page 2 For more technical materials such as submittals, engineering databooks, and catalogs, visit www.lghvac.com. IM_CRC1_Series_Controllers_5_17 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...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Safety Instructions ....................4 Introduction ......................7 Controller Overview .....................8 Home Screen ........................8 Controller Installation ...................9 Selecting Installation Location ..................9 Installing the Controller ....................11 Controller Setup ....................14 Controller Setup ......................14 Setpoint Adjustment ....................15 Accessories Installation ..................17 ZigBee Pro Wireless Module ..................17 Ceiling Motion Sensor ....................19 Wall Mounted Motion Sensor ..................22 Door/Window Sensor ....................25...
  • Page 4: Safety Instructions

    Failure to carefully read and follow all instructions in this manual may result in equipment malfunction, property damage, personal injury and/or death. 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 Do not allow strain on this cable. There is risk of equipment damage. 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 A short circuit or wrong wiring may permanently damage Remote Control- ler or equipment. 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: Introduction

    *ZigBee is a registered trademark of the ZigBee Alliance. 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: Controller Overview

    Arrows auto-increment/decrement at higher speed when holding button for more than 2.5 seconds. 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: Controller Installation

    74° Humidity 66 % Locked by central 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 10 C = 11 ft. / 3.4 m Center Vertical Angle (Typical) Center 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: Installing The Controller

    7. Insert communication cable through center opening of base. 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 4 5 6 13 14 15 Typical 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 13 Terminal 17 Not used Terminal 18 Not used 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: Controller Setup

    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: Setpoint Adjustment

    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 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: Accessories Installation

    *ZigBee is a registered trademark of the ZigBee Alliance. 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 9. Install security screw. Figure 11: Reinstall Cover 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: Ceiling Motion Sensor

    10 Feet 10 Feet 12 Feet 12 Feet 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: Installation Sequence

    4. Proceed to Install Ceiling Motion Sensor. 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: Sensor Functions

    Refer to “ZigBee Pro Quick Setup” on page 29 for information on how to test sensor operation. 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: Wall Mounted Motion Sensor

    Figure 20: Wall Mounted Motion Sensor Coverage Area Motion Sensor Motion Sensor 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: Install Battery

    4. Proceed to Install Wall Mounted Motion Sensor. 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 Refer to “ZigBee Pro Quick Setup” on page 29 for information on how to test sensor operation. 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: Door/Window Sensor

    < 0.75 in Contact Switch Magnet > 0.75 in 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 1. Affix 2-sided tape to desired location (Figure 30). Ensure tape is flush with 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: Install Magnet

    Do not torque screws. 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 Refer to “ZigBee Pro Quick Setup” on page 29 for information on how to test sensor operation. 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: Zigbee Setup

    MultiSITE CRC1 Series Remote Controller User Interface Guide is available at 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 30 Y = Yellow Device Busy R = Red Power RRYYGG 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: Bacnet Ms/Tp Setup

    7. Ensure BACnet status reads Online. *BACnet is a registered trademark of ASHRAE. 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: Specifications

    Occ, Stand-By and Unocc Heating Setpoint Range • 40 °F - 90 °F 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 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: Fcc Notice

    ICES-003 Label de conformité : CAN ICES-3 (A) / NBM-3 (A) 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 Follow the prompts for commercial A/C products and parts. 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 LG Electronics Commercial Air Conditioning Division 4300 Northpoint Parkway IM_CRC1_Series_Controllers_5_17 Alpharetta, Georgia 30022 Supersedes: IM_CRC1_Series_Controllers_4_17 www.lghvac.com Supersedes: IM_CRC1_Series_Controllers_10_16...
  • Page 37: Outdoor Unit

    MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
  • Page 38 For more technical materials such as submittals, catalogs, engineering, owner’s, best practices, building ventilation guide, and service manuals, visit www.lghvac.com. For continual product development, LG Electronics U.S.A., Inc. reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc.
  • Page 39 Maintenance Recommendations ....................................97 Installation Checklists and Worksheets ................................98-103 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: Safety Instructions

    There is a risk of explosion, physical injury, or death. 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 There is a risk of product 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 42 / or property damage. 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: Operation

    Strong cleaning products will damage the surface of the air conditioner, or will cause its appearance to deteriorate. 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: Nomenclature

    • Compatible single zone IDU nomenclature is listed in the Single Zone Wall-Mounted IDU Engineering 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.
  • Page 45: General Data

    Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and 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 - 36,000 ODU (LMU36CHV): 12,000 IDU x 4 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 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 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 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 These values can increase due to ambient conditions during operation. 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 Indoor Fan Motor (FLA) is based on the maximum combina- tion of indoor units. 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 Supporter 14-1/20 Unit: inch 37-13/32 Center of Gravity 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 Piping lengths are equivalent. 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 3. For PMBD3640 and PMBD3641 Units, Ports A, B, C, and D are Available. 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 • When lifting, always include padding to protect the outdoor unit from rope damage. 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: Placement Considerations

    8. Consider tie-down requirements in case of high winds or where required by local codes. 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: Rooftop Installations

    If the building does not include lightning protection, the outdoor unit will be damaged from a lightning strike. Inform the customer of this possibility in advance. 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 Obstacles on the suction side and on both left and right sides. 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 59 Obstacle just on the air discharge side. air discharge side. 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: Series Installation

    Minimum 24" Minimum 40" 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: Installing Outdoor Units Indoors

    Installing Outdoor Units Indoors LG Multi F / Multi F MAX outdoor units are engineered to be mounted outdoors and include technology designed to minimize the negative effects of winter weather’s freezing rain, sleet, and snow. Some building projects, however, necessitate placing the HVAC outdoor units indoors: •...
  • Page 62 4. If the louver open rate is too small or there is insufficient air flow exchange, the air conditioner might stop operating. 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 /min. / 2,119 ft. /min. = 291% (Within Allowable Limits) 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 64 / circuit panels, etc. 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 3. For PMBD3640 and PMBD3641 Units, Ports A, B, C, and D are Available. 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 66 Figure 16: LMU480HV, LMU540HV, LMU600HV Outdoor Units. 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 67: Mounting / Anchoring

    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 Bottom of Unit Bott Bottom View, Port End Facing Up 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: Lg Air Conditioner Technical Solution (Lats)

    LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning systems. To reduce the risk of designing an improper applied system or one that will not operate correctly, LG prefers that LATS software be used on all projects.
  • Page 70 LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.
  • Page 71 A, B, C, D: Pipes from Outdoor Unit to Indoor Unit. Max. 49.2 feet Max. 24.6 feet 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 Branch Distribution Unit (ft., Multi F MAX systems only) 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: Selecting Copper Piping

    Always follow local codes when selecting and installing copper pipe and piping system components. Approved piping for use with LG HVAC products will be marked “R410 RATED” along the length of the pipe. Piping wall thickness must meet local code requirements and be approved for a maximum operating pressure of 551 psi. When bending piping, try to keep the number of bends to a minimum, and use the largest radii possible to reduce the equivalent length of installed piping;...
  • Page 74: Copper Expansion And Contraction

    ASTM B-88 Inches to feet conversion (12 in./ft.) Standards. 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 2.00 2.00 2.50 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5.50 5.40 5.75 6.50 7.00 7.25 7.50 www.engineeringtoolbox.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 76 R = Centerline Length of Pipe. L = Centerline Minimum Radius (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 77: Piping Handling

    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 78: Refrigerant System Engineering

    Failure to do so will cause significant performance degradation. Proper leak checks must be performed. Using isolation valves does not automatically void any LG product warranty, however, a limited warranty will be voided in whole or part must any field supplied accessory fail in any way that causes product failure.
  • Page 79: Pipe Supports

    ~12" – 19" Max. 12" Maximum 12" Max. 12" 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 Support Band Down Stop Hexagonal Nut Refrigerant Pipe 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 Pipe Sleeves at Penetrations LG recommends that all pipe penetrations through walls, floors, and pipes buried underground be properly insulated and routed through an appropriate wall sleeve of sufficient size to prevent compression of refrigerant pipe insulation and promote free movement of the pipe within the sleeve.
  • Page 82: Flaring And Brazing Procedures

    MULTI Flaring and Brazing Procedures One of the main causes of refrigerant leaks is a defective connection. For LG HVAC systems, the installer needs to know how perform both flared and brazed connections successfully. • During installation, it is imperative to keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust.
  • Page 83: Brazing Procedure

    • Protect isolation valves, electronic expansion valves, and other heat-sensitive control components from excessive heat with a wet rag or heat barrier spray. 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 18,000 Btu/h: Low Static Duct, Four-Way Cassette 24,000 Btu/h 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 Flare Flare Outdoor Indoor Unit Unit Connection Socket 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 86 Vapor Line Connection (in., OD) x Qty. Ø3/4 x 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 87 18,000 Btu/h: Low Static Duct, Four-Way Cassette 24,000 Btu/h 36,000 Btu/h 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 4. After all the piping has been connected and the caps have been tightened, check for refrigerant gas leaks. 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 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 Viewed from A in direction of arrow Within ± 3° Within ± 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 91: Special Applications

    5. Seal any openings in the wall that are around the piping. 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: Condensate Drain Piping

    A leak test must be performed 24 hours after the drainage system has been installed. to the 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 93 Y-branch fitting and all run-out pipes are installed. 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 The air conditioner factory insulation has been tested according to “ISO Conditions with Mist,” and it satisfies the requirements. If the system 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 95: Installing The Insulation

    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 96 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 97 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 98 • Provide a circuit breaker between the power source and the outdoor unit. Failure to do so will cause bodily injury or death. 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 99 Electrical interference my cause product 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 100 Outdoor and Indoor Unit appearances may vary depending on the model. 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 101 • Maintain polarity throughout the communication network. The system will malfunction if not properly wired. 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 102 • Maintain polarity throughout the communication network. The system will malfunction if not properly wired. 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 103 • Maintain polarity throughout the communication network. The system will malfunction if not properly wired. 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 104 • Maintain polarity throughout the communication network. The system will malfunction if not properly wired. 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 105 • Maintain polarity throughout the communication network. The system will malfunction if not properly wired. 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 106 • All wiring / cable must be firmly connected to its terminals. Loose wiring will result in unit 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 107 3(A) 3(B) To BD Units A and B 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 108 Always refer to the circuit diagram on the inside of the outdoor unit control cover. 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 109 Figure 92: PI-485 Board (Ap- pearance will differ depending on PI-485 V-net Control Integration Board for Outdoor Units adapt Multi F / Multi F MAX systems to a LG model). VRF system central protocol for integration with LG central controllers. The PI-485 is installed in the Multi F / Multi F MAX outdoor unit.
  • Page 110 ELECTRICAL From Indoor Units to Remote Controllers • Communication cable from indoor unit to remote controller(s) is to be LG supplied or field supplied 22 AWG, 3-conductor, twisted, stranded, unshielded. Wiring must comply with all applicable local and national codes.
  • Page 111 • Selection of operation options (operation/mode/set temperature) • Control of air flow rate (High/Medium/Low) 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 112: Final Installation Procedures

    Also test for leaks at both service valves. 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 113 Open the gauge manifold and the vacuum pump valves. 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 114 • Use a quality micron gauge in good operating order and install as far away from pump as possible. 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 115 13. Shut the valves before turning off and disconnecting the vacuum 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 116: Additional Charge

    - (4 - 3) x 5.29 = 10.82 oz. 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 117 – (8 - 5) x 3.53 9,000 18,000 = 20.43 oz. 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 118: Refrigerant Charge

    Check Valve Refrigerant Cylinder Vacuum Gauge (One) OPEN 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 119 ASHRAE Standard 15 / 34 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 120 See also the LG HVAC Building Ventilation Guide on 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 121: Test Run

    5. Proceed with powering on the remote controller and usage as needed. 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 122 Reducing Power Consumption (Step 2) with Mode Lock (Heating) 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 123 • Only the first four DIP switches are functional on the LMU480, 540, 600HV. 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 124: Wiring Error Check

    • Only the first four DIP switches are functional on the LMU480, 540, 600HV. 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 125 • Only the first four DIP switches are functional on the LMU480, 540, 600HV. 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 126 Ten (10) Times DC Link Voltage 230V “dc” “230” 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 127: Error Code Tables

    Indoor unit EEPROM error Indoor unit BLDC motor fan lock 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 128 Outdoor unit brushless direct current (BLDC) fan motor lock error Outdoor unit PFC overcurrent (peak) error 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 129: Lg Monitoring View (Lgmv) Diagnostic Software

    • Average indoor unit (IDU) pipe temperature • Inverter compressor operation indicator light 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 130 • Information displayed also depends on which unit is installed. 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 131: Lg Smart Inverter Monitoring System (Sims)

    Help Menu (File is Factory Use Only) 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 132 • Information displayed also depends on which unit is installed. 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 133: Maintenance Recommendations

    It is also recommended to monitor system operation using LGMV and / or SIMS Software at least once a year. 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 134: Installation Checklist

    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 135 Only LG-supplied Y-cables were used between grouped indoor units, if applicable. 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 136 Major Component Rough-In Piping and Insulation Brazing Practices 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 137 Installation—Branch Distribution Unit (Multi F MAX Systems Only) Installation—Power Wire and Communications Cables 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 138 - ________CF x 5.29 - (________) = ________ Additional Charge (oz.) 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 139 - ________CF x 3.53 - (________) = ________ Additional Charge (oz.) 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 140 20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. IM_MultiF_ODU_04_20 Air Conditioning Technologies Supersedes: IM_MultiF_ODU_03_17 4300 North Point Parkway IM_MultiF_ODU_11_16 Alpharetta, Georgia 30022 IM_MultiF_ODU_4_16 www.lghvac.com IM_MultiF_ODU_11_15...
  • Page 141: Outdoor Unit

    MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
  • Page 142 4. For more materials such as submittals, catalogs, engineering, installation, owner’s, and service manuals, visit www.lghvac.com. For continual product development, LG Electronics U.S.A., Inc. reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc.
  • Page 143: Safety Instructions

    Periodically check that the outdoor frame is not damaged. 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 144 There is a risk of product 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 145 System may 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 146: Operation

    Do not open the inlet during operation. 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 147 Caution for Refrigerant Leakage .................................... 72-73 Installation Checklists ......................................74-79 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 148: Specifications

    For performance data, see "Multi F / Multi F MAX Performance Data Manual" on www.lg-dfs.com. cooling mode. 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 149 These values can increase due to ambient conditions during operation. 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 150 11. Piping lengths are equivalent. 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 151: Electrical Data

    Indoor Fan Motor (FLA) is based on the maximum combina- tion of indoor units. 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 152: 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 153: General Installation Guidelines

    27-1/2 inches away from the outdoor unit to allow for airflow. 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 154: Rooftop Installations

    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 155 Obstacles on the suction side and on both left and right sides. 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 156 Obstacle just on the air discharge side. air discharge side. 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 157 Minimum 24" Minimum 40" 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 158 Figure 3: Close up of Bolt Attachment. Anchor Bolt 13/16 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 159 6. Seal all wiring and piping access holes to prevent bugs from entering the Bolt Bolt 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 160 1-3/16 1-31/32 Piping to Indoor Units Service Direction 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 161 Figure 9: PMBD3620, PMBD3630, PMBD3640, and PMBD3641 External 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 162 Into the Ceiling Into the Ceiling Into the Ceiling 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 163 Bottom of Unit Bott Bottom View, Port End Facing Up 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 164: Piping Preparation

    Ø5/8 0.06 ~ 0.07 Ø3/4 0.07 ~ 0.08 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 165 Connection Pipe Down Side Front Putty or Insulation (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 166: 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 167: Selecting Field-Supplied Copper Tubing

    Selecting Field-Supplied Copper Tubing Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi F products will be marked “R410 RATED” along the length of the tube.
  • Page 168 Viewed from A in direction of arrow Within ± 3° Within ± 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 169 (or fall) distance. 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 170 ASTM B-88 Standards. Inches to feet conversion (12 in./ft.) 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 171 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 172 Field-Provided Isolation Ball Valves LG maintains a neutral position on using isolation valves in VRF refrigerant piping systems. LG does not endorse any manufacturer of isola- tion valves. It is recognized that installing isolation valves may simplify future maintenance requirements, and, if used, considerations should be taken including, but not limited to, the following: •...
  • Page 173 A + B ~ 12" – 19" Max. 12" 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 174 Support Band Down Stop Hexagonal Nut Refrigerant Pipe 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 175: Refrigerant Piping Connections

    A, B, C, D: Pipes from Outdoor Unit to Indoor Unit. Max. 49.2 feet Max. 24.6 feet 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 176 ≤ 49.2 feet h1 ≤ 98.4 feet 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 177 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 178 Duct, Four-Way Cassette Connection Socket 24,000 Btu/h 36,000 Btu/h 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 179 17 for information in reference to outdoor unit placement and condensate drainage. 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 180 Configuration Configuration Within ± 3° Within ± 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 181: Flushing The Refrigerant Piping

    (follow steps 3, 4, 5, and 6). 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 182: Leak Test And Vacuum Procedures

    Also test for leaks at both of the gas and liquid side service valves. 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 183 0.0 (0.0) (Time) 24 hours 5 minutes 3 minutes 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 184 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 185: Refrigerant Charge

    - (4 - 3) x 5.29 = 10.82 oz. 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 186 – (8 - 5) x 3.53 9,000 18,000 = 20.43 oz. 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 187: Charging The Refrigerant

    Check Valve Refrigerant Cylinder Vacuum Gauge (One) OPEN 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 188: Refrigerant Piping Insulation

    1 inch 1 inch ø1-1/2 inches ø1-3/4 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 189 Vinyl cover should not be used. 40 in 40 in 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 190: Installing The Insulation

    BD unit (Multi F MAX systems only). 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 191: Special Applications

    5. Seal any openings in the wall. Trap 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 192 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 193: General Information

    LMU480HV, LMU540HV 1Ø,208-230V LMU600HV 1Ø,208-230V 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 194 Connecting 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 195: Power Wiring And Communications Cable Connections

    Do not use damaged or loose power wiring. 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 196 These wiring / cables should have separate conduits that are placed a reasonable distance apart. Communi- cation problems can arise from electrical noise. 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 197 3(A) 3(B) To BD Units A and B 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 198 3. Provide strain relief by securing the wiring / cable to the indoor unit with the factory-supplied clamps. 4. For more installation information for specific indoor units, refer to the separate indoor unit installation manuals on www.lg-dfs.com. Distributor (BD) Unit (Multi F MAX Systems Only)
  • Page 199 PI485 ance may differ depending on PI485 V-net Control Integration Board for Outdoor Units adapt Multi F, Multi F MAX systems to a LG VRF model). system central protocol for integration with LG central controllers. The PI485 is installed in the Multi F / Multi F MAX outdoor unit.
  • Page 200: Test Run

    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 201: Dip Switch Settings

    Reducing Power Consumption (Step 2) with Mode Lock (Heating) 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 202 • Turn DIP Switch 1 to OFF after finishing (Normal Operation setting). • 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 203: Wiring Error Check

    • Reduced Power Consumption reduces outdoor unit capacity. • 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 204 • Change the DIP switches if Night Quiet Mode is no longer desired. • • 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 205 Ten (10) Times DC Link Voltage 230V “dc” “230” 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 206: Troubleshooting

    • Unit Conversion: Converts metric values to imperial values. installed. 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 207: Error Codes

    XP/Vista/7 32 bit (recommended), ® 64 bit installed. 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 208 LG SIMS The SIMs WLAN module and the smart phone app together provide monitoring and trouble- shooting capability for LG Multi F / Multi F MAX systems. SIMs functions only with LG Duct Free products. SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
  • Page 209 • ODU Electric - Out- door Unit Electric data graph is displayed. 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 210: Troubleshooting Using Error Codes

    Indoor unit EPROM error Indoor unit BLDC motor fan lock 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 211 Outdoor unit brushless direct current (BLDC) fan motor lock error Outdoor unit PFC overcurrent (peak) error 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 212 ASHRAE Standard 15 / 34 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 213 Gas Leak Detector Indoor Unit Ventilation Inlet / Outlet 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 214: Installation Checklists

    (Optional) R410A rated full port ball valves were used at all indoor units and wherever appropriate in the refrigerant piping network. 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 215 Power wiring to the indoor units and branch distribution unit(s) (Multi F MAX only) was installed per all local electrical code requirements. LG-supplied cable was used between each indoor unit and its zone controller. No cables were spliced and no wire caps are present.
  • Page 216 Major Component Rough-In Piping and Insulation Brazing Practices 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 217 Installation—Branch Distribution Unit (Multi F MAX Systems Only) Installation—Power Wire and Communications Cables 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 218 - ________CF x 5.29 - (________) = ________ Additional Charge (lbs.) 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 219 - ________CF x 3.53 - (________) = ________ Additional Charge (lbs.) 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 220 20001747 ISO 9001: 2008 LG ELECTRONICS INC. Refer to Service Manuals posted on www.lghvac.com for a full description of all error codes and work-arounds. LG Electronics Products Support 1-888-865-3026 USA LG Electronics, U.S.A., Inc. Follow the prompts for HVAC products.
  • Page 221: Air Conditioner

    Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Please retain this installation manual for future reference after reading it thoroughly. Ceilling Concealed Duct www.lghvac.com www.lg.com MFL67206507 Rev.05_052219 Copyright © 2013 - 2019 LG Electronics Inc. All Rights Reserved.
  • Page 222: Tips For Saving Energy

    TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
  • Page 223: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
  • Page 224 IMPORTANT SAFETY INSTRUCTIONS • Make sure that a sekparate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire. •...
  • Page 225 TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENERGY IMPORTANT SAFETY INSTRUCTIONS INSTALLATION PARTS INSTALLATION Ceiling dimension and hanging bolt location Indoor Unit Installation Air Filter Checking the Drainage Indoor Unit Drain Piping Combination indoor units Flaring work Connection of piping - Indoor, Outdoor, BD Unit Plumbing materials and storage methods Indoor Unit Drain Piping Drain test...
  • Page 226: Installation Parts

    INSTALLATION PARTS INSTALLATION PARTS Air inlet vents Air outlet vents Air outlet vents Air filters Air intake vents Remote Controller (Accessory) Control box Air outlet vents Air filters Air intake vents Washer for Clamp Insulation for Name Drain hose Clamp metal hanging bracket (Tie Wrap) fitting...
  • Page 227 INSTALLATION INSTALLATION Indoor unit Install the air conditioner in the location that satisfies the following conditions. - The place shall easily bear a load exceeding four times the indoor unit’s weight. - The place shall be able to inspect the unit as the figure. - The place where the unit shall be leveled.
  • Page 228 INSTALLATION Ceiling dimension and hanging bolt location Installation of Unit Install the unit above the ceiling correctly. POSITION OF SUSPENSION BOLT - Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. - Apply a filter Accessory at air return hole. <TYPE A/D>...
  • Page 229: Indoor Unit Installation

    INSTALLATION Indoor Unit Installation POSITION OF CONSOLE BOLT - A place where the unit will be leveled and - Select and mark the position for fixing bolts. that can support the weight of the unit. - Drill the hole for set anchor on the face of - A place where the unit can withstand its ceiling.
  • Page 230 INSTALLATION CAUTION Install declination of the indoor unit is very important for the drain of the duct type air conditioner. Minimum thickness of the insulation for the connecting pipe shall be 5 mm(3/16 inch). Front of view • The unit must be declined to the drain hose connected when finished installation. Ceiling CORRECT INCORRECT...
  • Page 231: Air Filter

    INSTALLATION Air Filter <TYPE A> Air Filter Panel Rear Air outlet Low static duct type in case of suction from back side. Panel Rear Air outlet Air Filter Low static duct type in case of suction from bottom side. Cabinet case Panel Rear In case of suction from bottom size, bend the Panel rear and screw with cabinet case.
  • Page 232: Checking The Drainage

    INSTALLATION Insulate the joint and tubes completely. INSULATION, OTHERS THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Thermal insulator for refrigerant pipe Union for gas pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose clip for thermal insulator (Local supply)
  • Page 233 INSTALLATION CAUTION Drain test The air conditioner uses a drain pump to drain • Install declination of the indoor unit is water. very important for the drain of the duct Use the following procedure to test the drain type air conditioner. pump operation: - Connect the main drain pipe to the exterior •...
  • Page 234: Combination Indoor Units

    INSTALLATION Combination indoor units (AMNW**G**A0 / TYPE B / TYPE D) BD unit (PMBD3641) The indoor units connectable to the outdoor unit are shown below A8UW54GFA0 [LMU540HV] Outdoor Unit Indoor Unit (Btu/h class) Capacity Type (Btu/h 36 k 54 k class) Outdoor Unit Total capacity of connectable...
  • Page 235: Flaring Work

    INSTALLATION Flaring work Flaring work - Carry out flaring work using flaring tool as Main cause of gas leakage is defect in flaring shown below. work. Carry out correct flaring work in the following procedure. A Inch (mm) Pipe diameter Thickness Inch (mm) Inch (mm)
  • Page 236: Connection Of Piping - Indoor, Outdoor, Bd Unit

    INSTALLATION Connection of piping - Indoor, Outdoor, BD Unit (AMNW**G**A0 / AMNW18GL2A1 / TYPE B / TYPE D) Align the center of the piping and sufficiently tighten the flare nut by hand. Refrigerant Connections Capacity Indoor unit tubing Flare nut Pipes Pipe size (kBtu/h)
  • Page 237: Plumbing Materials And Storage Methods

    INSTALLATION Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness...
  • Page 238 INSTALLATION Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.
  • Page 239: Indoor Unit Drain Piping

    INSTALLATION Indoor Unit Drain Piping - Connect the main drain pipe to the exterior and leave it provisionally until the test comes (TYPE B / C ) to an end. - Feed water to the flexible drain hose and Upward check the piping for leakage.
  • Page 240: Heat Insulation

    INSTALLATION Heat insulation <TYPE A> <TYPE B/C> (TYPE B / C / D) Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120 °C). Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions Control box cover with Mist"...
  • Page 241 INSTALLATION <TYPE D> Case 2. Separate only side panel(when access from side of the product). - Open the control box cover and connect the Remove screws which are connecting remote controller cables, transmission two panel and pull down the side cables and indoor power cables.
  • Page 242 INSTALLATION Insulation, others After remove the control box cover, insert cables onto the bush and conduit and then Insulate the joint and tubes completely. connect at terminal block. THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Liquid pipe Refrigerant pipe and thermal insulation(Local supply)
  • Page 243 INSTALLATION CAUTION The power connecting cable between the outdoor and indoor units must comply with the following specifications: NRTL Recognized (for example, UL or ETL recognized and CSA certified). - For wiring, use the designated power wire and AWG 18-4 is the minimum recommended connect firmly, then secure to prevent outside wire size, however, the selected conductors pressure being exerted on the terminal block.
  • Page 244: Remote Controller Installation

    REMOTE CONTROLLER INSTALLATION REMOTE CONTROLLER INSTALLATION ※Remote controller is provided as an accessory. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box.
  • Page 245 REMOTE CONTROLLER INSTALLATION Please connect indoor unit and remote controller using connection cable. Indoor Unit Side Connecting Cable 12 V Signal Yellow Remote Black Controller SPEED TEMP OPER MODE Please check if connector is normally connected. Indoor SPEED TEMP Unit side OPER MODE Please use extension cable if the distance between wired remote controller...
  • Page 246: Wired Remote Controller Installation

    REMOTE CONTROLLER INSTALLATION <TYPE C> When connecting Terminal Blocks of the indoor C/BOX and the wired remote controller with the extension cable, refer to the steps below. ① Remove the screw on the cable which is fastened to the wired remote controller’s Terminal Block by loosening with a screw driver.
  • Page 247: How To Set E.s.p

    HOW TO SET E.S.P? HOW TO SET E.S.P? Installer Setting - E.S.P. This is the function that decides the strength of the wind for each wind level and because this function is to make the installation easier. • If you set ESP incorrectly, the air conditioner may malfunction. •...
  • Page 248 HOW TO SET E.S.P? <TYPE B> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k HIGH 1 130 36 k <TYPE C> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 15(0.6) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k...
  • Page 249: Self-Diagnosis Function

    SELF-DIAGNOSIS FUNCTION SELF-DIAGNOSIS FUNCTION Indoor Unit Error Ex) Error 03 (Remote controller error) 3 Times 3 Times 3 Times LED02G (GREEN) Indoor Error Code Description LED 1(Red) LED 2(Green) status 1 time ◑ Indoor Room sensor error 2 times ◑ Indoor in-pipe sensor error 3 times ◑...
  • Page 251 Please call the installing contractor of your product, as warranty service will be provided by them. Service call Number # : (888) LG Canada, (888) 542-2623 CANADA Numéro pour les appels de service : LG Canada, 1-888-542-2623...
  • Page 252: Outdoor Unit

    MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
  • Page 253 4. For more materials such as submittals, catalogs, engineering, installation, owner’s, and service manuals, visit www.lghvac.com. For continual product development, LG Electronics U.S.A., Inc. reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc.
  • Page 254: Safety Instructions

    Periodically check that the outdoor frame is not damaged. 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 255 There is a risk of product 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 256 System may 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 257: Operation

    Do not open the inlet during operation. 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 258 Caution for Refrigerant Leakage .................................... 72-73 Installation Checklists ......................................74-79 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 259: Specifications

    For performance data, see "Multi F / Multi F MAX Performance Data Manual" on www.lg-dfs.com. cooling mode. 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 260 These values can increase due to ambient conditions during operation. 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 261 11. Piping lengths are equivalent. 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 262: Electrical Data

    Indoor Fan Motor (FLA) is based on the maximum combina- tion of indoor units. 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 263: 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 264: General Installation Guidelines

    27-1/2 inches away from the outdoor unit to allow for airflow. 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 265: Rooftop Installations

    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 266 Obstacles on the suction side and on both left and right sides. 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 267 Obstacle just on the air discharge side. air discharge side. 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 268 Minimum 24" Minimum 40" 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 269 Figure 3: Close up of Bolt Attachment. Anchor Bolt 13/16 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 270 6. Seal all wiring and piping access holes to prevent bugs from entering the Bolt Bolt 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 271 1-3/16 1-31/32 Piping to Indoor Units Service Direction 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 272 Figure 9: PMBD3620, PMBD3630, PMBD3640, and PMBD3641 External 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 273 Into the Ceiling Into the Ceiling Into the Ceiling 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 274 Bottom of Unit Bott Bottom View, Port End Facing Up 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 275: Piping Preparation

    Ø5/8 0.06 ~ 0.07 Ø3/4 0.07 ~ 0.08 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 276 Connection Pipe Down Side Front Putty or Insulation (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 277: 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 278: Selecting Field-Supplied Copper Tubing

    Selecting Field-Supplied Copper Tubing Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi F products will be marked “R410 RATED” along the length of the tube.
  • Page 279 Viewed from A in direction of arrow Within ± 3° Within ± 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 280 (or fall) distance. 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 281 ASTM B-88 Standards. Inches to feet conversion (12 in./ft.) 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 282 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 283 Field-Provided Isolation Ball Valves LG maintains a neutral position on using isolation valves in VRF refrigerant piping systems. LG does not endorse any manufacturer of isola- tion valves. It is recognized that installing isolation valves may simplify future maintenance requirements, and, if used, considerations should be taken including, but not limited to, the following: •...
  • Page 284 A + B ~ 12" – 19" Max. 12" 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 285 Support Band Down Stop Hexagonal Nut Refrigerant Pipe 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 286: Refrigerant Piping Connections

    A, B, C, D: Pipes from Outdoor Unit to Indoor Unit. Max. 49.2 feet Max. 24.6 feet 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 287 ≤ 49.2 feet h1 ≤ 98.4 feet 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 288 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 289 Duct, Four-Way Cassette Connection Socket 24,000 Btu/h 36,000 Btu/h 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 290 17 for information in reference to outdoor unit placement and condensate drainage. 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 291 Configuration Configuration Within ± 3° Within ± 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 292: Flushing The Refrigerant Piping

    (follow steps 3, 4, 5, and 6). 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 293: Leak Test And Vacuum Procedures

    Also test for leaks at both of the gas and liquid side service valves. 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 294 0.0 (0.0) (Time) 24 hours 5 minutes 3 minutes 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 295 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 296: Refrigerant Charge

    - (4 - 3) x 5.29 = 10.82 oz. 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 297 – (8 - 5) x 3.53 9,000 18,000 = 20.43 oz. 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 298: Charging The Refrigerant

    Check Valve Refrigerant Cylinder Vacuum Gauge (One) OPEN 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 299: Refrigerant Piping Insulation

    1 inch 1 inch ø1-1/2 inches ø1-3/4 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 300 Vinyl cover should not be used. 40 in 40 in 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 301: Installing The Insulation

    BD unit (Multi F MAX systems only). 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 302: Special Applications

    5. Seal any openings in the wall. Trap 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 303 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 304: General Information

    LMU480HV, LMU540HV 1Ø,208-230V LMU600HV 1Ø,208-230V 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 305 Connecting 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 306: Power Wiring And Communications Cable Connections

    Do not use damaged or loose power wiring. 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 307 These wiring / cables should have separate conduits that are placed a reasonable distance apart. Communi- cation problems can arise from electrical noise. 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 308 3(A) 3(B) To BD Units A and B 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 309 3. Provide strain relief by securing the wiring / cable to the indoor unit with the factory-supplied clamps. 4. For more installation information for specific indoor units, refer to the separate indoor unit installation manuals on www.lg-dfs.com. Distributor (BD) Unit (Multi F MAX Systems Only)
  • Page 310 PI485 ance may differ depending on PI485 V-net Control Integration Board for Outdoor Units adapt Multi F, Multi F MAX systems to a LG VRF model). system central protocol for integration with LG central controllers. The PI485 is installed in the Multi F / Multi F MAX outdoor unit.
  • Page 311: Test Run

    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 312: Dip Switch Settings

    Reducing Power Consumption (Step 2) with Mode Lock (Heating) 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 313 • Turn DIP Switch 1 to OFF after finishing (Normal Operation setting). • 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 314: Wiring Error Check

    • Reduced Power Consumption reduces outdoor unit capacity. • 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 315 • Change the DIP switches if Night Quiet Mode is no longer desired. • • 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 316 Ten (10) Times DC Link Voltage 230V “dc” “230” 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 317: Troubleshooting

    • Unit Conversion: Converts metric values to imperial values. installed. 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 318: Error Codes

    XP/Vista/7 32 bit (recommended), ® 64 bit installed. 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 319 LG SIMS The SIMs WLAN module and the smart phone app together provide monitoring and trouble- shooting capability for LG Multi F / Multi F MAX systems. SIMs functions only with LG Duct Free products. SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
  • Page 320 • ODU Electric - Out- door Unit Electric data graph is displayed. 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 321: Troubleshooting Using Error Codes

    Indoor unit EPROM error Indoor unit BLDC motor fan lock 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 322 Outdoor unit brushless direct current (BLDC) fan motor lock error Outdoor unit PFC overcurrent (peak) error 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 323 ASHRAE Standard 15 / 34 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 324 Gas Leak Detector Indoor Unit Ventilation Inlet / Outlet 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 325: Installation Checklists

    (Optional) R410A rated full port ball valves were used at all indoor units and wherever appropriate in the refrigerant piping network. 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 326 Power wiring to the indoor units and branch distribution unit(s) (Multi F MAX only) was installed per all local electrical code requirements. LG-supplied cable was used between each indoor unit and its zone controller. No cables were spliced and no wire caps are present.
  • Page 327 Major Component Rough-In Piping and Insulation Brazing Practices 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 328 Installation—Branch Distribution Unit (Multi F MAX Systems Only) Installation—Power Wire and Communications Cables 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 329 - ________CF x 5.29 - (________) = ________ Additional Charge (lbs.) 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 330 - ________CF x 3.53 - (________) = ________ Additional Charge (lbs.) 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 331 20001747 ISO 9001: 2008 LG ELECTRONICS INC. Refer to Service Manuals posted on www.lghvac.com for a full description of all error codes and work-arounds. LG Electronics Products Support 1-888-865-3026 USA LG Electronics, U.S.A., Inc. Follow the prompts for HVAC products.
  • Page 332: Air Conditioner

    Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Please retain this installation manual for future reference after reading it thoroughly. Ceilling Concealed Duct www.lghvac.com www.lg.com MFL67206507 Rev.05_052219 Copyright © 2013 - 2019 LG Electronics Inc. All Rights Reserved.
  • Page 333 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
  • Page 334: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
  • Page 335 IMPORTANT SAFETY INSTRUCTIONS • Make sure that a sekparate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire. •...
  • Page 336 TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENERGY IMPORTANT SAFETY INSTRUCTIONS INSTALLATION PARTS INSTALLATION Ceiling dimension and hanging bolt location Indoor Unit Installation Air Filter Checking the Drainage Indoor Unit Drain Piping Combination indoor units Flaring work Connection of piping - Indoor, Outdoor, BD Unit Plumbing materials and storage methods Indoor Unit Drain Piping Drain test...
  • Page 337: Installation Parts

    INSTALLATION PARTS INSTALLATION PARTS Air inlet vents Air outlet vents Air outlet vents Air filters Air intake vents Remote Controller (Accessory) Control box Air outlet vents Air filters Air intake vents Washer for Clamp Insulation for Name Drain hose Clamp metal hanging bracket (Tie Wrap) fitting...
  • Page 338: Installation

    INSTALLATION INSTALLATION Indoor unit Install the air conditioner in the location that satisfies the following conditions. - The place shall easily bear a load exceeding four times the indoor unit’s weight. - The place shall be able to inspect the unit as the figure. - The place where the unit shall be leveled.
  • Page 339: Ceiling Dimension And Hanging Bolt Location

    INSTALLATION Ceiling dimension and hanging bolt location Installation of Unit Install the unit above the ceiling correctly. POSITION OF SUSPENSION BOLT - Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. - Apply a filter Accessory at air return hole. <TYPE A/D>...
  • Page 340: Indoor Unit Installation

    INSTALLATION Indoor Unit Installation POSITION OF CONSOLE BOLT - A place where the unit will be leveled and - Select and mark the position for fixing bolts. that can support the weight of the unit. - Drill the hole for set anchor on the face of - A place where the unit can withstand its ceiling.
  • Page 341 INSTALLATION CAUTION Install declination of the indoor unit is very important for the drain of the duct type air conditioner. Minimum thickness of the insulation for the connecting pipe shall be 5 mm(3/16 inch). Front of view • The unit must be declined to the drain hose connected when finished installation. Ceiling CORRECT INCORRECT...
  • Page 342: Air Filter

    INSTALLATION Air Filter <TYPE A> Air Filter Panel Rear Air outlet Low static duct type in case of suction from back side. Panel Rear Air outlet Air Filter Low static duct type in case of suction from bottom side. Cabinet case Panel Rear In case of suction from bottom size, bend the Panel rear and screw with cabinet case.
  • Page 343: Checking The Drainage

    INSTALLATION Insulate the joint and tubes completely. INSULATION, OTHERS THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Thermal insulator for refrigerant pipe Union for gas pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose clip for thermal insulator (Local supply)
  • Page 344: Indoor Unit Drain Piping

    INSTALLATION CAUTION Drain test The air conditioner uses a drain pump to drain • Install declination of the indoor unit is water. very important for the drain of the duct Use the following procedure to test the drain type air conditioner. pump operation: - Connect the main drain pipe to the exterior •...
  • Page 345: Combination Indoor Units

    INSTALLATION Combination indoor units (AMNW**G**A0 / TYPE B / TYPE D) BD unit (PMBD3641) The indoor units connectable to the outdoor unit are shown below A8UW54GFA0 [LMU540HV] Outdoor Unit Indoor Unit (Btu/h class) Capacity Type (Btu/h 36 k 54 k class) Outdoor Unit Total capacity of connectable...
  • Page 346: Flaring Work

    INSTALLATION Flaring work Flaring work - Carry out flaring work using flaring tool as Main cause of gas leakage is defect in flaring shown below. work. Carry out correct flaring work in the following procedure. A Inch (mm) Pipe diameter Thickness Inch (mm) Inch (mm)
  • Page 347: Connection Of Piping - Indoor, Outdoor, Bd Unit

    INSTALLATION Connection of piping - Indoor, Outdoor, BD Unit (AMNW**G**A0 / AMNW18GL2A1 / TYPE B / TYPE D) Align the center of the piping and sufficiently tighten the flare nut by hand. Refrigerant Connections Capacity Indoor unit tubing Flare nut Pipes Pipe size (kBtu/h)
  • Page 348: Plumbing Materials And Storage Methods

    INSTALLATION Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness...
  • Page 349 INSTALLATION Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.
  • Page 350: Indoor Unit Drain Piping

    INSTALLATION Indoor Unit Drain Piping - Connect the main drain pipe to the exterior and leave it provisionally until the test comes (TYPE B / C ) to an end. - Feed water to the flexible drain hose and Upward check the piping for leakage.
  • Page 351: Heat Insulation

    INSTALLATION Heat insulation <TYPE A> <TYPE B/C> (TYPE B / C / D) Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120 °C). Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions Control box cover with Mist"...
  • Page 352 INSTALLATION <TYPE D> Case 2. Separate only side panel(when access from side of the product). - Open the control box cover and connect the Remove screws which are connecting remote controller cables, transmission two panel and pull down the side cables and indoor power cables.
  • Page 353 INSTALLATION Insulation, others After remove the control box cover, insert cables onto the bush and conduit and then Insulate the joint and tubes completely. connect at terminal block. THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Liquid pipe Refrigerant pipe and thermal insulation(Local supply)
  • Page 354 INSTALLATION CAUTION The power connecting cable between the outdoor and indoor units must comply with the following specifications: NRTL Recognized (for example, UL or ETL recognized and CSA certified). - For wiring, use the designated power wire and AWG 18-4 is the minimum recommended connect firmly, then secure to prevent outside wire size, however, the selected conductors pressure being exerted on the terminal block.
  • Page 355: Remote Controller Installation

    REMOTE CONTROLLER INSTALLATION REMOTE CONTROLLER INSTALLATION ※Remote controller is provided as an accessory. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box.
  • Page 356 REMOTE CONTROLLER INSTALLATION Please connect indoor unit and remote controller using connection cable. Indoor Unit Side Connecting Cable 12 V Signal Yellow Remote Black Controller SPEED TEMP OPER MODE Please check if connector is normally connected. Indoor SPEED TEMP Unit side OPER MODE Please use extension cable if the distance between wired remote controller...
  • Page 357: Wired Remote Controller Installation

    REMOTE CONTROLLER INSTALLATION <TYPE C> When connecting Terminal Blocks of the indoor C/BOX and the wired remote controller with the extension cable, refer to the steps below. ① Remove the screw on the cable which is fastened to the wired remote controller’s Terminal Block by loosening with a screw driver.
  • Page 358: How To Set E.s.p

    HOW TO SET E.S.P? HOW TO SET E.S.P? Installer Setting - E.S.P. This is the function that decides the strength of the wind for each wind level and because this function is to make the installation easier. • If you set ESP incorrectly, the air conditioner may malfunction. •...
  • Page 359 HOW TO SET E.S.P? <TYPE B> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k HIGH 1 130 36 k <TYPE C> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 15(0.6) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k...
  • Page 360: Self-Diagnosis Function

    SELF-DIAGNOSIS FUNCTION SELF-DIAGNOSIS FUNCTION Indoor Unit Error Ex) Error 03 (Remote controller error) 3 Times 3 Times 3 Times LED02G (GREEN) Indoor Error Code Description LED 1(Red) LED 2(Green) status 1 time ◑ Indoor Room sensor error 2 times ◑ Indoor in-pipe sensor error 3 times ◑...
  • Page 362 Please call the installing contractor of your product, as warranty service will be provided by them. Service call Number # : (888) LG Canada, (888) 542-2623 CANADA Numéro pour les appels de service : LG Canada, 1-888-542-2623...
  • Page 363 MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
  • Page 364 4. For more materials such as submittals, catalogs, engineering, installation, owner’s, and service manuals, visit www.lghvac.com. For continual product development, LG Electronics U.S.A., Inc. reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc.
  • Page 365: Safety Instructions

    Periodically check that the outdoor frame is not damaged. 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 366 There is a risk of product 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 367 System may 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 368: Operation

    Do not open the inlet during operation. 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 369 Caution for Refrigerant Leakage .................................... 72-73 Installation Checklists ......................................74-79 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 370: Specifications

    For performance data, see "Multi F / Multi F MAX Performance Data Manual" on www.lg-dfs.com. cooling mode. 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 371 These values can increase due to ambient conditions during operation. 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 372 11. Piping lengths are equivalent. 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 373: Electrical Data

    Indoor Fan Motor (FLA) is based on the maximum combina- tion of indoor units. 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 374: 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 375: General Installation Guidelines

    27-1/2 inches away from the outdoor unit to allow for airflow. 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 376: Rooftop Installations

    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 377 Obstacles on the suction side and on both left and right sides. 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 378: Allowable Clearances

    Obstacle just on the air discharge side. air discharge side. 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 379 Minimum 24" Minimum 40" 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 380 Figure 3: Close up of Bolt Attachment. Anchor Bolt 13/16 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 381: Platform Instructions

    6. Seal all wiring and piping access holes to prevent bugs from entering the Bolt Bolt 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 382 1-3/16 1-31/32 Piping to Indoor Units Service Direction 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 383 Figure 9: PMBD3620, PMBD3630, PMBD3640, and PMBD3641 External 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 384 Into the Ceiling Into the Ceiling Into the Ceiling 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 385 Bottom of Unit Bott Bottom View, Port End Facing Up 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 386: Piping Preparation

    Ø5/8 0.06 ~ 0.07 Ø3/4 0.07 ~ 0.08 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 387 Connection Pipe Down Side Front Putty or Insulation (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 388: 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 389 Selecting Field-Supplied Copper Tubing Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi F products will be marked “R410 RATED” along the length of the tube.
  • Page 390 Viewed from A in direction of arrow Within ± 3° Within ± 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 391 (or fall) distance. 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 392 ASTM B-88 Standards. Inches to feet conversion (12 in./ft.) 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 393 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 394 Field-Provided Isolation Ball Valves LG maintains a neutral position on using isolation valves in VRF refrigerant piping systems. LG does not endorse any manufacturer of isola- tion valves. It is recognized that installing isolation valves may simplify future maintenance requirements, and, if used, considerations should be taken including, but not limited to, the following: •...
  • Page 395 A + B ~ 12" – 19" Max. 12" 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 396 Support Band Down Stop Hexagonal Nut Refrigerant Pipe 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 397: Refrigerant Piping Connections

    A, B, C, D: Pipes from Outdoor Unit to Indoor Unit. Max. 49.2 feet Max. 24.6 feet 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 398 ≤ 49.2 feet h1 ≤ 98.4 feet 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 399 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 400 Duct, Four-Way Cassette Connection Socket 24,000 Btu/h 36,000 Btu/h 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 401 17 for information in reference to outdoor unit placement and condensate drainage. 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 402 Configuration Configuration Within ± 3° Within ± 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 403: Flushing The Refrigerant Piping

    (follow steps 3, 4, 5, and 6). 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 404: Leak Test And Vacuum Procedures

    Also test for leaks at both of the gas and liquid side service valves. 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 405 0.0 (0.0) (Time) 24 hours 5 minutes 3 minutes 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 406 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 407: Refrigerant Charge

    - (4 - 3) x 5.29 = 10.82 oz. 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 408 – (8 - 5) x 3.53 9,000 18,000 = 20.43 oz. 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 409 Check Valve Refrigerant Cylinder Vacuum Gauge (One) OPEN 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 410: Refrigerant Piping Insulation

    1 inch 1 inch ø1-1/2 inches ø1-3/4 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 411 Vinyl cover should not be used. 40 in 40 in 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 412 BD unit (Multi F MAX systems only). 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 413 5. Seal any openings in the wall. Trap 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 414 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 415: General Information

    LMU480HV, LMU540HV 1Ø,208-230V LMU600HV 1Ø,208-230V 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 416 Connecting 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 417: Power Wiring And Communications Cable Connections

    Do not use damaged or loose power wiring. 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 418 These wiring / cables should have separate conduits that are placed a reasonable distance apart. Communi- cation problems can arise from electrical noise. 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 419 3(A) 3(B) To BD Units A and B 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 420 3. Provide strain relief by securing the wiring / cable to the indoor unit with the factory-supplied clamps. 4. For more installation information for specific indoor units, refer to the separate indoor unit installation manuals on www.lg-dfs.com. Distributor (BD) Unit (Multi F MAX Systems Only)
  • Page 421 PI485 ance may differ depending on PI485 V-net Control Integration Board for Outdoor Units adapt Multi F, Multi F MAX systems to a LG VRF model). system central protocol for integration with LG central controllers. The PI485 is installed in the Multi F / Multi F MAX outdoor unit.
  • Page 422: Test Run

    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 423: Dip Switch Settings

    Reducing Power Consumption (Step 2) with Mode Lock (Heating) 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 424 • Turn DIP Switch 1 to OFF after finishing (Normal Operation setting). • 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 425 • Reduced Power Consumption reduces outdoor unit capacity. • 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 426 • Change the DIP switches if Night Quiet Mode is no longer desired. • • 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 427 Ten (10) Times DC Link Voltage 230V “dc” “230” 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 428: Troubleshooting

    • Unit Conversion: Converts metric values to imperial values. installed. 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 429: Error Codes

    XP/Vista/7 32 bit (recommended), ® 64 bit installed. 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 430 LG SIMS The SIMs WLAN module and the smart phone app together provide monitoring and trouble- shooting capability for LG Multi F / Multi F MAX systems. SIMs functions only with LG Duct Free products. SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
  • Page 431 • ODU Electric - Out- door Unit Electric data graph is displayed. 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 432 Indoor unit EPROM error Indoor unit BLDC motor fan lock 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 433 Outdoor unit brushless direct current (BLDC) fan motor lock error Outdoor unit PFC overcurrent (peak) error 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 434 ASHRAE Standard 15 / 34 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 435 Gas Leak Detector Indoor Unit Ventilation Inlet / Outlet 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 436: Installation Checklists

    (Optional) R410A rated full port ball valves were used at all indoor units and wherever appropriate in the refrigerant piping network. 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 437 Power wiring to the indoor units and branch distribution unit(s) (Multi F MAX only) was installed per all local electrical code requirements. LG-supplied cable was used between each indoor unit and its zone controller. No cables were spliced and no wire caps are present.
  • Page 438 Major Component Rough-In Piping and Insulation Brazing Practices 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 439 Installation—Branch Distribution Unit (Multi F MAX Systems Only) Installation—Power Wire and Communications Cables 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 440 - ________CF x 5.29 - (________) = ________ Additional Charge (lbs.) 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 441 - ________CF x 3.53 - (________) = ________ Additional Charge (lbs.) 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 442 20001747 ISO 9001: 2008 LG ELECTRONICS INC. Refer to Service Manuals posted on www.lghvac.com for a full description of all error codes and work-arounds. LG Electronics Products Support 1-888-865-3026 USA LG Electronics, U.S.A., Inc. Follow the prompts for HVAC products.

This manual is also suitable for:

Multisite crc1 seriesPremtbvc0Premtbvc1

Table of Contents