LG KSUQB091A Engineering Manual
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LG KSUQB091A Engineering Manual

LG KSUQB091A Engineering Manual

R32 single zone console
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R32 SINGLE ZONE CONSOLE
ENGINEERING MANUAL
KSUQB091A (9,000 Btu/h)
KSUQB121A (12,000 Btu/h)

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Summary of Contents for LG KSUQB091A

  • Page 1 R32 SINGLE ZONE CONSOLE ENGINEERING MANUAL KSUQB091A (9,000 Btu/h) KSUQB121A (12,000 Btu/h)

  • Page 2: Proprietary Data Notice

    For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc. This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.
  • Page 3 Microsoft® Corporation. ® LATS Revit integrates the LG LATS program with Revit® software**. It permits engineers to layout and validate LG VRF, Multi F / Multi F MAX, Single-Zone, and DOAS directly into Revit drawings.

  • Page 4: Lg Air Conditioner Technical Solution (Lats)

    LATS can generate an Excel GERP report that can be imported into the LG SOPS pricing and ordering system.

  • Page 5: Table Of Contents

    Controllers ..........................................67-68 Limited Warranty ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 69 Due to our policy of continuous product innovation, some specifications may 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: Table Of Symbols

    R32 Refrigerant LG Electronic split system heating and air conditioning (HVAC) products now contain R32 refrigerant. While R32 refrigerant is slightly flammable, it has a higher efficiency, a lower Global Warming Potential (GWP) value, and is more environmentally friendly than R410A.

  • Page 7: Product Data

    PRODUCT DATA Nomenclature on page 8 Pairing Table on Page 9 Mechanical Specifications on page 10 General Data on page 12 Electrical Data on page 14 Functions, Controls, and Options on page 15 Accessories on page 16 Outdoor Unit Dimensions on page 19 Outdoor Unit Center of Gravity / Corner Weight on page 20 Indoor Unit Dimensions on page 21 Air Flow, Temperature Distribution Graphs on page 22...

  • Page 8: Nomenclature

    1 to 9 9. Function A = 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 9: Pairing Table

    Indoor Unit Model KUSXB091A KNUQB091A KUSXB121A KNUQB121A Due to our policy of continuous product innovation, some specifications may 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: Mechanical Specifications

    Due to our policy of continuous product innovation, some specifications may 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: Indoor Unit

    KSUQB091A (9,000 Btu/h) KSUQB121A (12,000 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 12: General Data

    (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Due to our policy of continuous product innovation, some specifications may 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 (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Due to our policy of continuous product innovation, some specifications may 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: Electrical Data

    MCA = Minimum Circuit Ampacity. LRA = Locked Motor Amps Due to our policy of continuous product innovation, some specifications may 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: Functions, Controls, Options

    Not all controllers can support all features. Contact your LG representative for details. Due to our policy of continuous product innovation, some specifications may 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: Accessories

    PQSH1202 Optional KUSXB121A 120W PQSH1202 Optional Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
  • Page 17 ACCESSORIES LG Monitoring View (LGMV) Diagnostic Software and Cable LG Monitoring View (LGMV) is a maintenance and troubleshooting tool for Multi V™ air conditioning systems. LGMV formats are available for computer or mobile phone use. The main screen for LGMV allows the user to view the following real time data: •...
  • Page 18 Due to our policy of continuous product innovation, some specifications may 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: Outdoor Unit Dimensions

    Figure 6: KUSXB091A, KUSXB121A Outdoor Unit Dimensions. 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 20: Outdoor Unit Center Of Gravity / Corner Weight

    22 3/16 12 31/32 12.2 28.5 25.6 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 21: Indoor Unit Dimensions

    Figure 8: KNUQB091A, KNUQB121A Indoor Unit Dimensions. 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 22: Air Flow, Temp. Distribution Graphs

    / location, indoor / Heating load, and other obstacles, 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 23: Outdoor Unit Acoustic Data

    Figure 11: R32 Console Outdoor Unit Sound Pressure Level Diagrams. KUSXB091A KUSXB121A Due to our policy of continuous product innovation, some specifications may 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: Indoor Unit Acoustic Data

    Figure 13: R32 Console Indoor Unit Sound Pressure Level 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 25 Figure 14: R32 Console Indoor Unit Sound Power Level Diagrams. Due to our policy of continuous product innovation, some specifications may 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: Performance Data

    PERFORMANCE DATA Cooling Capacity on page 27 Maximum Cooling Capacity on page 29 Heating Capacity on page 31 Maximum Heating Capacity on page 33 Correction Factors on page 35 Check Selection on page 36...

  • Page 27: Cooling Capacity

    / or safety interruption. Due to our policy of continuous product innovation, some specifications may 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 / or safety interruption. Due to our policy of continuous product innovation, some specifications may 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: Maximum Cooling Capacity

    / or safety interruption. Due to our policy of continuous product innovation, some specifications may 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 / or safety interruption. Due to our policy of continuous product innovation, some specifications may 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: Heating Capacity

    2. Direct interpolation is permissible. Do not extrapolate. Due to our policy of continuous product innovation, some specifications may 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 2. Direct interpolation is permissible. Do not extrapolate. Due to our policy of continuous product innovation, some specifications may 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: Maximum Heating Capacity

    2. Direct interpolation is permissible. Do not extrapolate. Due to our policy of continuous product innovation, some specifications may 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 2. Direct interpolation is permissible. Do not extrapolate. Due to our policy of continuous product innovation, some specifications may 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: Correction Factors

    Due to our policy of continuous product innovation, some specifications may 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: Correction Factors / Check Selection

    • Use caution when sizing to meet listed capacity specifications for the scheduled manufacturer’s equipment. If further system design assistance is needed, or you have a unique application you would like to discuss, contact an LG sales rep. Due to our policy of continuous product innovation, some specifications may change without notification.

  • Page 37: Application Guidelines

    APPLICATION GUIDELINES Placement / Clearance Considerations for Indoor Units on page 38 Placement / Clearance Considerations for Outdoor Units on page 40 Installing Outdoor Units Indoors on page 44...

  • Page 38: Indoor Unit Placement / Clearance Considerations

    The unit will be damaged, will malfunction, and / or will not operate as designed if installed in any of the conditions listed. Due to our policy of continuous product innovation, some specifications may 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 Also, add a ceiling grille for ventilation. Due to our policy of continuous product innovation, some specifications may 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: Outdoor Units

    Outdoor unit requires condensate drain piping. Condensate drain pipe is constructed with materials approved by local code. See section on outdoor unit placement. Due to our policy of continuous product innovation, some specifications may 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: Planning For Snow And Ice

    Due to our policy of continuous product innovation, some specifications may 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: Oceanside Applications

    Additional anti-corrosion treatment may need to be applied to the outdoor unit at oceanside locations. Due to our policy of continuous product innovation, some specifications may 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 Case 4 Minimum Standard Case 5 Minimum Due to our policy of continuous product innovation, some specifications may 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: Installing Outdoor Units Indoors

    • Discharge and supply ductwork must be designed to avoid weather related long periods of water entrainment and the potential for microbial growth. Due to our policy of continuous product innovation, some specifications may 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 Due to our policy of continuous product innovation, some specifications may 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 /min. = 312% (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 47: Refrigerant Piping Design

    REFRIGERANT PIPING DESIGN Refrigerant Flow Diagrams on page 48 Connection Limitations and System Layout on page 50 Additional Refrigerant Charge on page 51 Refrigerant Piping System Engineering on page 52...

  • Page 48: Refrigerant Flow Diagrams

    KUSXB091A, KUSXB121A Outdoor Units Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.
  • Page 49 KNUQB091A, KNUQB121A Indoor Units Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.

  • Page 50: Connection Limitations And System Layout

    CONNECTION LIMITATIONS / SYSTEM LAYOUT Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.

  • Page 51: Additional Refrigerant Charge

    ADDITIONAL REFRIGERANT CHARGE Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.

  • Page 52: Refrigerant Piping System Engineering

    REFRIGERANT PIPING SYSTEM ENGINEERING Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.

  • Page 53: Copper Expansion And Contraction

    REFRIGERANT PIPING SYSTEM ENGINEERING Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.
  • Page 54 REFRIGERANT PIPING SYSTEM ENGINEERING Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.
  • Page 55 REFRIGERANT PIPING SYSTEM ENGINEERING Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.

  • Page 56: Pipe Supports

    REFRIGERANT PIPING SYSTEM ENGINEERING Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.

  • Page 57: Pipe Sleeves At Penetrations

    REFRIGERANT PIPING SYSTEM ENGINEERING Various tools are available to assist in properly designing LG R32 split systems. Refer to the “R32 Application Guide”; the “Simple Calculator for Ca- pacity, Refrigerant Charge and ESP”; the “LG Air Conditioner Technical Solutions” (LATS) software program; and the local LG Sales Representative.

  • Page 58: Electrical

    ELECTRICAL General Guidelines on page 59 Wiring Diagrams on page 60 Power Supply / Power Wiring on page 64 Communication / Connection Cable on page 65 Controllers on page 67...

  • Page 59: General Guidelines

    Do not allow wire to touch refrigerant piping, the compressor or any moving parts since it can lead to mechanical 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 60: Wiring Diagrams

    Figure 34: KUSXB091A, KUSXB121A Outdoor Units Wiring Diagram. MEZ68866125_Rev.02 061324 Due to our policy of continuous product innovation, some specifications may 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 Figure 35: KNUQB091A, KNUQB121A Indoor Unit Wiring Diagram. Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
  • Page 62 Auxiliary Heater Relay Kit Second stage heat Due to our policy of continuous product innovation, some specifications may 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 • SW5 OFF: Fan discontinuous operation. There would be reduction in heating capacity while defrosting or oil return 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 64: Power Supply / Power Wiring

    Figure 38: R32 Console Single Zone System Power / Communications System Schematic (Appearances May Vary). Due to our policy of continuous product innovation, some specifications may 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: Communication / Connection Cable

    Failure to do so will lead to electric shock which can cause physical injury or death. 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 66 1Φ, 208/230 V, 60 Hz Due to our policy of continuous product innovation, some specifications may 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: Controller Options

    Optional controllers (see “Functions, Controls, Options”, or contact an LG representative for more information) can connect to the indoor unit in one of two different ways. • LG Wired Remote Extension Cable with Molex plug (PZCWRC1; sold separately) that connects to the CN-REMO terminal on the indoor unit PCB.
  • Page 68 Due to our policy of continuous product innovation, some specifications may 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: Limited Warranty

    “The product’s full Limited Warranty terms and conditions and arbitration requirements are available at https://www.lghvac.com." Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
  • Page 70 LG Electronics, U.S.A., Inc. Air Conditioning Technologies EM_SZ_Console_R32_01_25 4300 North Point Parkway Supersedes: EM_SZ_Console_R32_11_24 Alpharetta, Georgia 30022 www.lghvac.com...

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Ksuqb121a

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