LG LC247HV Engineering Manual
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LG LC247HV Engineering Manual

LG LC247HV Engineering Manual

Single-zone four-way ceiling-cassette system
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Single-Zone Four-Way
Ceiling Cassette
Heat Pump Systems
1.5 to 3.5 tons
Single-Zone Four-Way
Ceiling-CaSSette SyStem
engineering manual
LC187HV (18,000 Btu/h)
LC247HV (24,000 Btu/h)
LC367HV (36,000 Btu/h)
LC427HV (42,000 Btu/h)

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Summary of Contents for LG LC247HV

  • Page 1 Single-Zone Four-Way Ceiling-CaSSette SyStem engineering manual Single-Zone Four-Way Ceiling Cassette Heat Pump Systems 1.5 to 3.5 tons LC187HV (18,000 Btu/h) LC367HV (36,000 Btu/h) LC247HV (24,000 Btu/h) LC427HV (42,000 Btu/h)
  • Page 2 This document is for design purposes only. DFS-EM-AC-001-US 014D02 For continual product development, LG reserves the right to change specifications without notice. ©LG Electronics Inc. This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.

  • Page 3: Table Of Contents

    Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. IntroductIon | 3...

  • Page 4: About Lg Electronics, Inc

    HVAC contractor is safe and easy – little to no duct work or sheet metal is 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. 4 | IntroductIon...

  • Page 5: Unit Nomenclature

    T = Thermostat Compatible Generation: Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. IntroductIon | 5...
  • Page 6 Figure 1: Four-Way Ceiling Cassette 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. 6 | IntroductIon...

  • Page 7: Product Data

    PRODUCT DATA “Product Features and Benefits” on page 8 “general Data” on page 9 “electrical Data” on page 10 “Dimensions” on page 11 “acoustic Data” on page 15 “air velocity and temperature Distribution” on page 17 “refrigerant Flow Diagrams” on page 19 “Wiring Diagrams”...

  • Page 8: Four-Way Ceiling Cassette System Data

    8 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: General Data

    (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). operation. Four-Way caSSette | 9 Due to our policy of continuous product innovation, some specifications may 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: Electrical Data

    10 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Dimensions

    For continual product development, LG reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG Life’s Good” is a registered trademark of LG Corp. /www.lghvac.com DFS‐SB‐AM‐001‐US 013E28 Page 2 of 3 Four-Way caSSette | 11 Due to our policy of continuous product innovation, some specifications may 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: Outdoor Unit Dimensions

    For continual product development, LG reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG Life’s Good” is a registered trademark of LG Corp. /www.lghvac.com DFS‐SB‐AM‐002‐US 013E28 Page 2 of 3 12 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Indoor Unit Dimensions

    For continual product development, LG reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG Life’s Good” is a registered trademark of LG Corp. /www.lghvac.com DFS‐SB‐AC‐006‐US 013E23 Four-Way caSSette | 13 Page 3 of 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 14: Dimensions

    For continual product development, LG reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG Life’s Good” is a registered trademark of LG Corp. /www.lghvac.com DFS‐SB‐AC‐007‐US 013E23 Page 3 of 3 14 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Acoustic Data

    Octave Band Center Frequency (Hz) Four-Way caSSette | 15 Due to our policy of continuous product innovation, some specifications may 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 Octave Band Center Frequency (Hz) 16 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Air Velocity And Temperature Distribution

    13ft 10ft 10ft 13ft Four-Way caSSette | 17 Due to our policy of continuous product innovation, some specifications may 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: Air Velocity And Temperature Distribution

    10ft 10ft 13ft 16ft 18 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Refrigerant Flow Diagrams

    Pressure Sensor CN-TH1 P-SENSOR(H) Four-Way caSSette | 19 Due to our policy of continuous product innovation, some specifications may 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: Refrigerant Flow Diagrams

    Evaporator Outlet Temperature Thermistor CN-PIPE / OUT 20 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Wiring Diagrams

    Figure 16: Four-Way Ceiling Cassette LUU187HV and LUU247HV Outdoor Unit Wiring Diagram. Four-Way caSSette | 21 Due to our policy of continuous product innovation, some specifications may 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 Wiring Diagram

    Figure 17: Four-Way Ceiling Cassette LUU367HV and LUU427HV Outdoor Unit Wiring Diagram. 22 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Wiring Diagrams

    Figure 18: Four-Way Ceiling Cassette LCN187, 247, 367, 427 HV Indoor Unit Wiring Diagram. Four-Way caSSette | 23 Due to our policy of continuous product innovation, some specifications may 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: Accessories

    For information on controller capabilities, refer to the Controls and Options Table on page 27. 24 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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 For information on controller capabilities, refer to the Controls and Options Table on page 27. Four-Way caSSette | 25 Due to our policy of continuous product innovation, some specifications may 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 For information on controller capabilities, refer to the Controls and Options Table on page 27. 26 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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 PTEGM0 Auto Elevation Kit Four-Way caSSette | 27 Due to our policy of continuous product innovation, some specifications may 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: Accessories

    • Main Memory: 256 MB 28 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Performance Data

    PERFORMANCE DATA “Cooling Capacity Data” on page 30 “Heating Capacity Data” on page 34...

  • Page 30: Cooling Capacity Tables

    Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 30 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. Four-Way caSSette | 31 Due to our policy of continuous product innovation, some specifications may 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 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 32 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. Four-Way caSSette | 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: Heating Capacity Tables

    Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 34 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. Four-Way caSSette | 35 Due to our policy of continuous product innovation, some specifications may 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 36 | Four-Way caSSette Due to our policy of continuous product innovation, some specifications may 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: Application Guidelines

    APPLICATION GUIDELINES “equipment Selection Procedure” on page 38 “Building ventilation Design guide” on page 40 “Placement Considerations” on page 45...

  • Page 38: Equipment Selection Procedure

    Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 38 | Four-Way caSSette...
  • Page 39 • Verify that the sensible load of the zone is satisfied. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. Four-Way caSSette | 39...

  • Page 40: Building Ventilation Design Guide

    LG Electronics, U.S.A., Inc., In all cases, the designer, installer, and contractor should understand if the suggested method is used, it is used at their own risk. LG Electronics U.S.A., Inc., takes no responsibility and offers no warranty, expressed or implied, of merchantability or fitness of purpose if this method fails to perform as stated or intended.
  • Page 41 OA Wall Louver Damper Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. Four-Way caSSette | 41...
  • Page 42 Filter OA Wall 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. 42 | Four-Way caSSette...
  • Page 43 Figure 24: Coupled Dedicated Outdoor Air (CDOA). Outdoor Air 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. Four-Way caSSette | 43...
  • Page 44 Ceiling Diffuser Air 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. 44 | Four-Way caSSette...

  • Page 45: Placement Considerations

    11-13/16 feet to 13-13/16 feet Very High 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. Four-Way caSSette | 45...
  • Page 46 - Field-Supplied Drain Piping: Polyvinyl chloride piping with 1-inch inside diameter and pipe fittings. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 46 | Four-Way caSSette...

  • Page 47: Outdoor Unit

    4. In an area in which condensate does not drain properly. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. Four-Way caSSette | 47...
  • Page 48 • Images are not to scale. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 48 | Four-Way caSSette...
  • Page 49 • Images are not to scale. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. Four-Way caSSette | 49...
  • Page 50 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 50 | Four-Way caSSette...
  • Page 51 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. Four-Way caSSette | 51...
  • Page 52 Minimum 23-19/32" Minimum 39-3/8" 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. 52 | Four-Way caSSette...

  • Page 53: Refrigerant Piping Design & Layout Best Practices

    REFRIGERANT PIPING DESIGN & LAYOUT BEST PRACTICES “Design guideline Summary” on page 54 “Selecting Field-Supplied Copper tubing” on page 55 “refrigerant Piping System layout” on page 58 “Piping insulation” on page 62 “Condensate Drain Piping” on page 63...

  • Page 54: Design Guideline Summary

    Indoor unit 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. 54 | duct (HIGH StatIc)
  • Page 55 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. duct (HIGH StatIc) | 55...
  • Page 56 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. 56 | duct (HIGH StatIc)
  • Page 57 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. duct (HIGH StatIc) | 57...
  • Page 58 A + B ~ 12" – 19" Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 58 | duct (HIGH StatIc)

  • Page 59: Pipe Sleeves At Penetrations

    LC187HV, LC247HV, LC367HV, LC427HV Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. duct (HIGH StatIc) | 59...
  • Page 60 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 60 | duct (HIGH StatIc)
  • Page 61 Indoor Unit 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. duct (HIGH StatIc) | 61...

  • Page 62: Piping Insulation

    Mark all pipes at the point where the insulation jacket ends. Remove the jacket. Install field provided insulation on the run-out and main trunk pipes first. Install the LG-provided insulation plugs on the ends of all unused header ports. Peel the adhesive glue protector slip from the insulation jacket and install the clam-shell jacket over the fitting.

  • Page 63: Condensate Drain Piping

    Standard 31-1/2 0.106 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. duct (HIGH StatIc) | 63...

  • Page 64: Condensate Drain Piping

    Test the condensate drain piping system for leaks 24 hours after installation is complete. Use only water to test the drain 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. 64 | duct (HIGH StatIc)

  • Page 65: Electrical And Mechanical Specifications

    ELECTRICAL AND MECHANICAL SPECIFICATIONS “Wiring Connections” on page 66 “mechanical Specifications” on page 70 “acronyms” on page 72...

  • Page 66: Wiring Connections

    • Indoor Unit(s) to Wired Controller: Three-core 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. 66 | Four-Way caSSette...
  • Page 67 Ground Wire 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. Four-Way caSSette | 67...
  • Page 68 Zone ODU being 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. 68 | Four-Way caSSette...
  • Page 69 Mounting plate together. Plate Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. Four-Way caSSette | 69...

  • Page 70: 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. 70 | Four-Way caSSette...
  • Page 71 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. Four-Way caSSette | 71...

  • Page 72: Acronyms

    International organization for Standardization Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 72 | Four-Way caSSette...
  • Page 76 20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics Commercial Products Support LG Electronics Commercial Air Conditioning Division 1-888-865-3026 USA 11405 Old Roswell Road Follow the prompts for commercial A/C products. Alpharetta, Georgia 30009 www.lghvac.com www.lg-dfs.com DFS-EM-AC-001-US_014D02...

This manual is also suitable for:

Lc187hvLc427hvLc367hv

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