LG ARUM072BTE5 Installation Manual
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LG ARUM072BTE5 Installation Manual

Multi v 5 series
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INSTALLATION MANUAL

Variable Refrigerant Flow Outdoor Units
6.0 to 42.0 Tons

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Summary of Contents for LG ARUM072BTE5

  • Page 1: Installation Manual

    INSTALLATION MANUAL Variable Refrigerant Flow Outdoor Units 6.0 to 42.0 Tons...
  • Page 2 4. For more technical materials such as submittals, catalogs, engineering, owner’s, best practices, 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 3: Table Of Contents

    Removing the Leak Prevention Caps ..........66 Service Ports ..................67 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 4: Safety Precautions

    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 5 There is risk of 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 6 Failure to carefully read and follow all instructions in this manual can result in equipment malfunction and 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 7: Safety Precautions

    If the base collapses, the unit could fall and cause property damage or 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 8: Unit Nomenclature

    04 = Four Ports Series Number 2A = Series Number Due to our policy of continuous product innovation, some specifications may 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: Outdoor Unit Specifications

    The System Combination Ratio must be between 50–130%. Due to our policy of continuous product innovation, some specifications may 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 The System Combination Ratio must be between 50–130%. Due to our policy of continuous product innovation, some specifications may 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 The System Combination Ratio must be between 50–130%. Due to our policy of continuous product innovation, some specifications may 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 Contractor must also use LG manufactured Y-Branch and Header Kits 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 13 Contractor must also use LG manufactured Y-Branch and Header Kits 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 14: 460V Outdoor Units

    Contractor must also use LG manufactured Y-Branch and Header Kits 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 15 Contractor must also use LG manufactured Y-Branch and Header Kits 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 16 Contractor must also use LG manufactured Y-Branch and Header Kits 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 17 Contractor must also use LG manufactured Y-Branch and Header Kits 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 18 Contractor must also use LG manufactured Y-Branch and Header Kits 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 19: Electrical Data

    *SCCR rating: 5kA RMS Symmetrical. MCA = Minimum Circuit Ampacity. Due to our policy of continuous product innovation, some specifications may 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: 460V Outdoor Unit Electrical Data

    *SCCR rating: 5kA RMS Symmetrical. MCA = Minimum Circuit Ampacity. Due to our policy of continuous product innovation, some specifications may 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: Heat Recovery Specifications / Electrical Data

    PRHR042A 208-230 / 60 / 1 0.040 0.040 Due to our policy of continuous product innovation, some specifications may 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: Outdoor Unit Dimensions

    6 – 13/16” 4 – 1/2” 3 – 11/16” 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 23 3 – 5/8” Center of Gravity Bottom Mounting Holes 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 24 Top View Center of Gravity Bottom Mounting Holes 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 25: Outdoor Unit Dimensions

    Top View Center of Gravity Bottom Mounting Holes 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 26: Heat Recovery Unit Dimensions

    HEAT RECOVERY UNIT DIMENSIONS PRHR022A Due to our policy of continuous product innovation, some specifications may 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 HEAT RECOVERY UNIT DIMENSIONS PRHR032A Due to our policy of continuous product innovation, some specifications may 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 HEAT RECOVERY UNIT DIMENSIONS PRHR042A Due to our policy of continuous product innovation, some specifications may 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: Transporting / Lifting

    Place a protective cloth or other soft material at the locations where the casing comes in contact with the lifting straps to prevent damage to painted surfaces. Due to our policy of continuous product innovation, some specifications may 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: Placement Considerations

    Due to our policy of continuous product innovation, some specifications may 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 Ocean winds Due to our policy of continuous product innovation, some specifications may 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: Outdoor Unit Clearance Requirements

    Different clearances are required if a Low Ambient Cooling Kit is installed. Refer to the Low Ambient Cooling Kit Installation Manual for clearance information. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 33: Installing Outdoor Units Indoors

    Installing Outdoor Units Indoors LG Multi V 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 34: Installing Outdoor Units Indoors

    For more detailed information on how to design indoor spaces for LG Multi V outdoor units, see the white paper “Air-Source VRF Mechanical Room Design Considerations for Outdoor Unit Placement in Enclosures”...

  • Page 35: Installing And Setting Outdoor Units In Dual / Triple Frame Systems

    See also the DIP Switch Settings in the Pre-Commissioning section. Due to our policy of continuous product innovation, some specifications may 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: Selecting The Best Location / Clearance Requirements For The Heat Recovery Unit(S)

    If reducers are used, space for service access must be increased to match the dimensions of the reducer. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 37: Placement Considerations

    8. Elevation difference between the heat recovery unit and the indoor unit(s) should not exceed 49 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 38 • Any acceptable support structure that is designed by a structural engineer. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 39 See Close Up View of Anchor Bolts at right. Due to our policy of continuous product innovation, some specifications may 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: Mounting / Anchoring The Outdoor Unit(S)

    (3/8" or 5/16") Hanging bolt Hanging bolt (3/8" or 5/16") 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 41: General Refrigerant Piping System Information

    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 requires that LATS software be used on all projects.
  • Page 42 LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.

  • Page 43: Refrigerant Safety Standards / Device Connection Limitations

    Kit contains two Y-branches: one for liquid and one for vapor. Due to our policy of continuous product innovation, some specifications may 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: Selecting Copper Piping

    For Heat Recovery Systems LG prefers the use of ACR hard drawn copper on pipe segments located between heat recovery units and outdoor units, between heat recov- ery units piped in series, and between heat recovery units and multiple indoor units sharing an heat recovery unit port.

  • Page 45: Copper Expansion And Contraction

    ASTM B-88 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 46 Pipe length baseline temperature = 0°F. "Expansion of Carbon, Copper and Stainless Steel Pipe," The Engineers' Toolbox, 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 47 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 48: Piping 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 49: Refrigerant System Engineering

    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 50 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 51 Pipe Sleeves at Penetrations LG requires 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 52: Flaring And Brazing Procedures

    12.7 ~ 19.7 (49/64 - 25/32) 15.88 19.05 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 53 • 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 54: Installing For Heat Pump Operation

    LG Y-branch and kits are highly engineered devices designed to evenly divide the flow of refrigerant, and are used to join one pipe segment to two or more segments. There are two types of Y-branches used in LG VRF systems: Y-branches that combine two or three outdoor units to make up one large-capacity outdoor unit (also known as multi-frame connectors), or Y-branches used with the indoor units in the refrigerant piping system at each transition.

  • Page 55: Indoor Unit Y-Branch Kits

    4-3/8 4-3/8 I.D. 3/4 O.D. 5/8 4-3/4 2-3/4 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 56: Outdoor Unit Y-Branch Kits

    Outdoor Unit Y-Branch Kits No Substitutions on Piping Components Only LG supplied Y-branch and Header fittings can be used to join one pipe segment to two or more segments. Third-party or field-fabricated components such as tee’s, Y-fittings, couplings, headers, or other branch fittings are not permitted. The only field-provided fittings allowed in a Multi V piping system are 45°...
  • Page 57 I.D. 7/8 O.D.1-1/8 I.D. 4-3/8 4-3/8 4-15/16 4-3/4 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 58: Header Kits

    Header Kits No Substitutions on Piping Components Only LG supplied Y-branch and Header fittings can be used to join one pipe segment to two or more segments. Third-party or field-fabricated components such as tee’s, Y-fittings, couplings, headers, or other branch fittings are not permitted. The only field-provided fittings allowed in a Multi V piping system are 45°...
  • Page 59 I.D. 1-1/4 I.D. 1-1/8 I.D. 5/8 I.D. 1-3/8 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 60: Sample Layouts

    3/4Ø 1-5/8Ø 7/8Ø No Increase 7/8Ø No Increase Due to our policy of continuous product innovation, some specifications may 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 3. If main pipe (A) diameters of a 20-ton outdoor unit are 1-1/8Ø (vapor) and 5/8Ø (liquid), then the pipe diameters between the first and second branches must be changed to match. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 62 Multi V 5 Engineering Manual, and follow the LATS diagram. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 63 A second branch cannot be made after a header. Outdoor Unit Outdoor Unit Header Header Due to our policy of continuous product innovation, some specifications may 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: Piping Connections / Pipe Routes

    Vapor Pipe Remove Knock Out Holes for the Pipes Due to our policy of continuous product innovation, some specifications may 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: Knock Outs

    • Properly install and insulate refrigerant pipes separately up to the service valve body inside the confines of the unit frame. Due to our policy of continuous product innovation, some specifications may 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: Removing The Leak Prevention Caps

    Adapters may be needed to connect the field piping to the correct outdoor unit connection (adapters are factory supplied with the outdoor 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 67: Service Ports

    Due to our policy of continuous product innovation, some specifications may 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: Installing For Heat Recovery Operation

    LG Y-branch and kits are highly engineered devices designed to evenly divide the flow of refrigerant, and are used to join one pipe segment to two or more segments. There are two types of Y-branches used in LG VRF systems: Y-branches that combine two or three outdoor units to make up one large-capacity outdoor unit (also known as multi-frame connectors), or Y-branches used with the indoor units in the refrigerant piping system at each transition.

  • Page 69: Indoor Unit Y-Branch Kits

    I.D. 3/4 O.D. 5/8 2-3/4 4-3/4 4-3/4 4-3/8 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 70: Outdoor Unit Y-Branch Kits

    Outdoor Unit Y-Branch Kits No Substitutions on Piping Components Only LG supplied Y-branch and Header fittings can be used to join one pipe segment to two or more segments. Third-party or field-fabricated components such as tee’s, Y-fittings, couplings, headers, or other branch fittings are not permitted. The only field-provided fittings allowed in a Multi V piping system are 45°...

  • Page 71: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    O.D. 1-1/8 4-3/8 4-3/8 I.D. 4-15/16 4-3/4 4-3/4 2-3/4 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 72: Header Kits

    Header Kits No Substitutions on Piping Components Only LG supplied Y-branch and Header fittings can be used to join one pipe segment to two or more segments. Third-party or field-fabricated components such as tee’s, Y-fittings, couplings, headers, or other branch fittings are not permitted. The only field-provided fittings allowed in a Multi V piping system are 45°...

  • Page 73: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    I.D. 1-1/4 I.D. 1-1/8 I.D. 5/8 I.D. 1-3/8 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 74: Heat Recovery Units

    Heat Recovery Units Heat recovery units are REQUIRED for systems that are designed for heat recovery operation. Heat recovery units can ONLY be used with LG systems designed for heat recovery operation that include liquid, low pressure vapor, and high pressure vapor refrigerant pipes.
  • Page 75 INSTALLING FOR HEAT RECOVERY OPERATION Heat Recovery Units PRHR022A Due to our policy of continuous product innovation, some specifications may 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: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    INSTALLING FOR HEAT RECOVERY OPERATION Heat Recovery Units PRHR032A Due to our policy of continuous product innovation, some specifications may 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: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    INSTALLING FOR HEAT RECOVERY OPERATION Heat Recovery Units PRHR042A Due to our policy of continuous product innovation, some specifications may 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: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    Pipe Connection from Left Side Pipe Connection from Right 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 79: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    Low Pressure Liquid Pipe Vapor Pipe Liquid 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 80: Sample Layouts

    3/4Ø 1-5/8Ø 1-1/8Ø 7/8Ø No Increase No Increase Due to our policy of continuous product innovation, some specifications may 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: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    • [Length of pipe from outdoor unit to farthest indoor unit (A+B+C)] - [Length of pipe from outdoor unit to closest indoor unit (A+B+C)] ≤131 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 82: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    Multi V 5 Engineering Manual, and follow the LATS diagram. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 83: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    Multi V 5 Engineering Manual, and follow the LATS diagram. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 84: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    Multi V 5 Engineering Manual, and follow the LATS diagram. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 85: Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification

    Multi V 5 Engineering Manual, and follow the LATS diagram. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 86: Piping Connections / Pipe Routes

    Low Pressure Vapor Pipe Remove Knock Out Holes for the Pipes Due to our policy of continuous product innovation, some specifications may 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: Knock Outs

    • Properly install and insulate refrigerant pipes separately up to the service valve body inside the confines of the unit frame. Due to our policy of continuous product innovation, some specifications may 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: Removing The Leak Prevention Caps

    Adapters may be needed to connect the field piping to the correct outdoor unit connection (adapters are factory supplied with the outdoor 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 89: Service Ports

    Due to our policy of continuous product innovation, some specifications may 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: Refrigerant Piping For Separated Outdoor Units

    Liquid Liquid To Indoor Units To 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 91 To indoor units / heat recovery units -10° Due to our policy of continuous product innovation, some specifications may 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 Example of an Incorrect Height Differential To 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 93: 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 94 3/8 inch thick EPDM insulation that is plenum-rated with a heat-resistance factor of more than 248°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 95 Mark all pipes at the point where the insulation jacket ends. Remove the insulation jacket. Install field-supplied insulation on the pipe segments first, and then install the LG provided insulation plugs on the ends of all unused Header ports.

  • Page 96: Electrical

    • Verify the power imbalance is no greater than 2% between phases at each outdoor unit frame. Power imbalances may damage the com- pressors and other components. Due to our policy of continuous product innovation, some specifications may 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 Do not run the power wiring and the communication cable in the same conduit. It may result in equipment malfunction. • Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 98: Power Wiring And Communication Cable Terminations

    Attachments Slave Outdoor Unit Communication Cable Ground 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 99 Slave Outdoor Unit Communication Cable Ground Wiring Ground 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 100: Power Wiring And Communication Cable Connections

    Do not include splices or wire nuts in the communication cable. • Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 101: Power Wiring And Communication Cable System Layout

    (2-wire Cable) Communication Line (3-wire Cable) 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 102: Power Supply / Power Wiring Specifications

    Failure to properly provide a National Electrical Code-approved earth ground can result in property damage and equipment malfunction. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 103 All field power supply wiring must be engineered per local code. Due to our policy of continuous product innovation, some specifications may 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 All field power supply wiring must be engineered per local code. Due to our policy of continuous product innovation, some specifications may 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: Power Supply / Power Wiring Specifications

    All field power supply wiring must be engineered per local code. Due to our policy of continuous product innovation, some specifications may 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: Communication Cable Specifications

    HR 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 107 Indoor Units / Heat Recovery Units (2-wire 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 108 Do not include splices or wire nuts in the communication cable. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 109 • Communication cable from Indoor Unit to Remote Controller(s) is to be 22 AWG, 3-conductor, twisted, stranded, unshielded. Wiring must comply with all applicable local and national codes. • If the length needs to be extended, the LG Extension Kit (sold separately) must be used. A maximum of four (4) kits (up to 165 feet) can be used.

  • Page 110: Electrical

    • Indoor unit connections depend on indoor unit type. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 111: Pre-Commissioning

    Do not apply power to the Multi V outdoor unit(s), the indoor units, and the heat recovery units before performing a system leak test. There is a possibility that the EEV valves may close and isolate sections of the piping system, making the leak test inconclusive. Contact your LG Applied Rep or service technician for the procedure to reopen the EEV valves before the leak test ONLY if the power has been applied.
  • Page 112 Wipe off any remaining bubble solution with a clean cloth. Due to our policy of continuous product innovation, some specifications may 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 / indoor units / heat recovery 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 114: Triple Evacuation Procedure

    Do not open the outdoor unit service valves and release the factory refrigerant charge until the LG trained commissioner authorizes to do so. The system must be left in vacuum until the LG trained commissioner verifies the quality of the evacuation.
  • Page 115 If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be 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 116 / indoor units / heat recovery 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 117: Vacuum Mode (Option)

    • Heat Recovery Unit(s) Valves and EEVs are and / or compressor damage. Fully 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 118: Pre-Commissioning Start / Outdoor Unit Dip Switch Settings

    Master Outdoor Unit Slave1 Outdoor Unit Slave2 Outdoor 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 119: Dip Switch Settings For Use With Gen 4 Indoor Units

    DIP Switch Settings for Use with Gen 4 Indoor Units Generation 4 Equipment The latest versions of LG’s indoor units are designated Generation 4 (Gen 4). For Gen 4 indoor units to operate with Gen 4 indoor unit fea- tures, the air conditioning system must meet the following requirements: Location and Setting of Outdoor Unit DIP Switch 3.
  • Page 120 Fault Detection and Diagnosis Modes (Fdd, Fd) LG’s LGMV should be used to assist in gauging Multi V system operations. If LGMV is not available, LG has included some onboard service algorithms (Fault Detection and Diagnosis Modes) to help with new installation, or troubleshooting a malfunction on an existing system.

  • Page 121: Setting The Optional Modes

    Vacuum Mode vACC One Time / One Selection Due to our policy of continuous product innovation, some specifications may 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 ITR has successfully completed. 8. If more than 30 minutes pass and “88” is still displayed, the ITR has failed. Contact your LG representative for technical assistance. 9. After a successful ITR, you can go to the LGMV Diagnostics tab, select Test Report, and save the .html data file. The report on the next page is a sample ITR report.
  • Page 123 Setting the Optional Modes Multi V ITR Result Report, Continued. Due to our policy of continuous product innovation, some specifications may 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 Setting the Optional Modes Cool / Heat Selector (Fn1) Cool / Heat Selector. The setting communicates to the outdoor unit that the optional LG Cool / Heat Selector is connected. The Left Side Right Side Cool / Heat Selector is field-wired to the “Dry 1” and “Dry 2” terminals located on the master outdoor unit main PCB.
  • Page 125 *Settings “op1” and “op2” are interpolated externals static pressure values given the values for “oFF” and “op3”. Due to our policy of continuous product innovation, some specifications may 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 *The system measures ambient temperature (minimum and maximum) in “Wait Time” to help determine when the system can start operating in Night Low Sound. Due to our policy of continuous product innovation, some specifications may 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 Outdoor Unit Address is set. PCB does not need reset. Due to our policy of continuous product innovation, some specifications may 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 Snow Removal Assist Mode and Rapid Defrost 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 129 The High Efficiency Function in Cooling Operation is set. Due to our policy of continuous product innovation, some specifications may 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 1 Hour *op3 requires LG’s I / O Module. Due to our policy of continuous product innovation, some specifications may 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 See the Multi V 5 Service 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 132 Outdoor Unit Assigned Reporting Duty Pd11 PDI Installed and Assigned Reporting Duty Due to our policy of continuous product innovation, some specifications may 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 On multi-frame systems, it is possible for one (1) or more frame(s) to be operating in heating, and have another frame operating in cooling. Due to our policy of continuous product innovation, some specifications may 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 The Comfort Cooling Operation mode is set. No outdoor unit PCB reset or power cycle required. Due to our policy of continuous product innovation, some specifications may 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: Self Diagnostics Check

    1 or 2 *See Tables above for code definitions. Due to our policy of continuous product innovation, some specifications may 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: Indoor Unit Auto Addressing

    Pre-Commissioning Device Configuration Worksheet. Due to our policy of continuous product innovation, some specifications may 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 Auto Addressing Procedure Ends. connected and have been successfully auto addressed. Due to our policy of continuous product innovation, some specifications may 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: Group Controlling Indoor Units

    Y-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 139: Central Control

    DRY1 DRY2 GND 12 V B(D) A(C) Central Controller Connection Due to our policy of continuous product innovation, some specifications may 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 Can be assigned at will or for example, can follow the room layout on each floor. For each LG Central Controller product provided on the project, devise a central control address schedule and assign a central control address to each indoor unit(s) Hydro Kit(s), and ERV(s) units. Record this central control address for each component in the column provided on the Pre-commissioning Device Configuration Worksheet.

  • Page 141: Central Control

    10. After all Slave indoor unit have addresses assigned, go back to the Master indoor unit and restore power. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 142: Addressing With Heat Recovery Units

    3. Record the address assigned to each heat recovery unit in the pertinent column on the Pre-Commissioning Device Configuration Worksheet. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 143 6 7 8 two (2) are set to zone control. Due to our policy of continuous product innovation, some specifications may 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 • Any unused port must be sealed with a brazed copper cap, not with a plastic cap. Due to our policy of continuous product innovation, some specifications may 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 No. 3, 4 Valve 2 3 4 6 7 8 Control Due to our policy of continuous product innovation, some specifications may 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 SW04M Increases the Valve Address by One (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 147 Increases the Valve Address by One (1) SW05M Manual Addressing of Zoned 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 148 Due to our policy of continuous product innovation, some specifications may 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 This is normal. Auto pipe detection is incomplete. Due to our policy of continuous product innovation, some specifications may 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 PCB for five (5) minutes after the procedure has finished. Due to our policy of continuous product innovation, some specifications may 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 • Valves that do not have indoor units connected to them should be addressed with a number that has not been used. (Valves will not work if the address numbers are the same.) Due to our policy of continuous product innovation, some specifications may 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 • Valves that do not have connected indoor units should be addressed with a number that has not been used. (Valves will not work if the address numbers are the same.) Due to our policy of continuous product innovation, some specifications may 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: Addressing With Heat Recovery Units

    • If a central control is installed, it is impossible to set the master indoor unit in zoning. Due to our policy of continuous product innovation, some specifications may 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: Temperature Sensing Location

    Device Configuration Worksheet. 1. Return air temperature sensor at the indoor unit. Sensing at the return air is the default method. LG indoor units are factory-built with a return air temperature sensor and do not require a remote controller. For more information, visit www.lghvac.com, and refer to the Engi- neering and Installation manuals for each particular indoor unit.

  • Page 155: Setting External Static Pressure

    It is always best if the air balance is completed prior to a request for an LG trained commissioner. If the air balancing contractor has not completed the work before commissioning, the LG trained commissioner is not responsible for setting the indoor unit air flow rates, fan speeds, or ensuring the air volume delivered at each indoor unit is per project specifications.
  • Page 156 4. Record the values on the Pre-Commissioning Device Configuration Worksheet. If the fan setting value was left at the factory default, insert “000” in the blank. Due to our policy of continuous product innovation, some specifications may 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: Package Pre-Commissioning Documents / Initiate A Request

    Do not attempt to start the outdoor unit(s), charge refrigerant, or open service valves until directed by your Commissioner. After commis- sioning, the contractor will be notified if there are any corrections needed to allow warranty activation. The Distributor or LG Rep / Controls Contractor may provide assistance with controls setup, final device programming, BMS integration, air balance adjustments, etc.;...

  • Page 158: Error Codes

    All error codes can be viewed at the outdoor unit seven segment display (SSD) and with LGMV software. If an error codes shows on one (1) or more indoor unit zone controllers, it will display on LGMV, central controllers, BMS, or any other LG device connected to Comm bus - Internet A/B.

  • Page 159: Error Codes

    For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 160 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 161 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 162 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 163 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 164 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 165 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 166 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 167 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 168 For detailed information on how to troubleshoot each error, see the Multi V Service Manual 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 169: 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 170 Images on these pages are examples of LGMV screenshots. Actual images may differ depending on the version of the software and the units 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 171: Maintenance Recommendations

    It is also recommended to monitor system operation using LGMV 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 172 Inverted traps on vapor lines installed if required per installation 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 173 Only LG-supplied Y-cables were used between grouped 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 174: Installation Checklist

    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 175 Installation—Condensate Pump / Drain Installation 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 176: Checklists

    (If the valves were opened, the factory refrigerant charge has been released.) Due to our policy of continuous product innovation, some specifications may 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 Note: If any of the above items are not complete at time of start-up, back charges will be assessed for additional costs. Due to our policy of continuous product innovation, some specifications may 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 Page 3 Notes for the LG Trained Commissioner Due to our policy of continuous product innovation, some specifications may 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 Page 4 Notes for the LG Trained Commissioner Due to our policy of continuous product innovation, some specifications may 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 Prepare Pre-Commissioning Package Documents Initiate a Commissioning Request Due to our policy of continuous product innovation, some specifications may 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 LG Trained Commissioner Name: _________________________________________________________________________ LG Trained Commissioner Signature: _____________________________________________________________________ Due to our policy of continuous product innovation, some specifications may 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 To access additional technical documentation such as submittals, indoor unit engineering manuals, installation, service, product data performance, general best practice, and building ventilation manuals, as well as white papers, catalogs, LATS software programs, and more, log in to www.lghvac.com.
  • Page 184 20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Customer Information Center, Commercial Products 1-888-865-3026 USA LG Electronics, U.S.A., Inc. Follow the prompts for commercial A/C products. Commercial Air Conditioning Division 4300 North Point Parkway Alpharetta, Georgia 30022 New Issue: IM_MultiV 5_OutdoorUnits_05_17...

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