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LG ARND DCR4 Series Installation Manual
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LG ARND DCR4 Series Installation Manual

Split compact dedicated outdoor air system (doas)
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LG SPLIT COMPACT DEDICATED
OUTDOOR AIR SYSTEM (DOAS)
INSTALLATION MANUAL
Variable Refrigerant Flow Split Compact DOAS
ARND***DCR4 Series
(900, 1,500 and 2,000 CFM)

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Summary of Contents for LG ARND DCR4 Series

  • Page 1 LG SPLIT COMPACT DEDICATED OUTDOOR AIR SYSTEM (DOAS) INSTALLATION MANUAL Variable Refrigerant Flow Split Compact DOAS ARND***DCR4 Series (900, 1,500 and 2,000 CFM)
  • Page 2 4. For more technical materials such as submittals, catalogs, engineering manuals, and forms, 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

    Connection Procedure............... 36 Field Wiring..................37 Field-Mounted Sensors ..............38-39 Due to our policy of continuous product innovation, some specifications may 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 risk of physical injury or death. Heating, Refrigerating, and Air-Conditioning Engineers, Inc.) Due to our policy of continuous product innovation, some specifications may 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 Improper piping may cause refrigerant leaks and system 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 6 Failure to carefully read and follow all instructions in this manual can result in equipment malfunction or property damage. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 7 Due to our policy of continuous product innovation, some specifications may 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

    R = Without Energy Recovery Wheel Generation 4 = Fourth Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 9: Product Overview

    Top panel can be removed to access the 3D Plug Fan. Due to our policy of continuous product innovation, some specifications may 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 Components

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

  • Page 11: General Data

    Actual discharge air temperatures may vary from discharge air temperature set-point due to changes in outdoor air processing loads. Due to our policy of continuous product innovation, some specifications may 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: Electrical

    FLA) rounded down to the nearest standard fuse size. Due to our policy of continuous product innovation, some specifications may 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: External Dimensions

    GENERAL DATA ARND093DCR4 External 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 14 GENERAL DATA ARND153DCR4, ARND203DCR4 External 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 15: Wiring

    GENERAL DATA Wiring Figure 1: ARND093DCR4 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 16 GENERAL DATA Wiring Figure 2: ARND153DCR4, ARND203DCR4 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 17: Refrigerant Flow - Cooling

    Reheat Coil Out Thermistor Humid1 Outdoor Air Humidity Sensor Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 18 Reheat Coil Out Thermistor Humid1 Outdoor Air Humidity Sensor Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 19: Refrigerant Flow - Heating

    Reheat Coil Out Thermistor Humid1 Outdoor Air Humidity Sensor Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 20: Sound Power Levels

    72.5 77.3 82.9 72.7 72.3 67.4 60.5 54.7 Due to our policy of continuous product innovation, some specifications may 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: Installation

    2. Rotate the fan wheel(s) by hand to ensure parts are not in contact with one another and are causing friction / damage. Assemblies • Blower - One plenum-type fans (LG 3D Plug). All units are equipped with a plenum fan for supply air. • Coils - Evaporator Coil and Reheat Coil.

  • Page 22: Location Selection

    Flat Washer - M10 or 1/2" Nut - W-3/8" or M10 Due to our policy of continuous product innovation, some specifications may 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: Mounting Dimensions

    SA Outlet OA Inlet Chassis Code 17.6 53.8 16.4 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 24: Service Clearances

    1 / ID Plain 1 / OD 13.6 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 25: Field-Installed Outdoor Air (Oa) Filter

    A filter rack within the OA intake ductwork or an aluminum mesh located just after the OA inlet is recommended. Figure 13: Field-Installed Outside Air (OA) Filter. Due to our policy of continuous product innovation, some specifications may 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: Unit Piping

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

  • Page 27: Brazing Procedure

    Wrap all refrigerant piping including field-provided isolation ball valves and flexible pipe connection kits provided by LG. Glue all insulation joints with no air gaps between insulation segments, and between insulation segments and the unit case. Ensure insulation material fits snugly against the refrigeration pipe with no air space between the pipe surface and the surrounding insulation.

  • Page 28: Condensate Drain Connections

    Y-45 fitting. Due to our policy of continuous product innovation, some specifications may 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: Gravity Condensate Pipe Connection

    Drain Pump port Drain hose clip (provided) Drain pan Due to our policy of continuous product innovation, some specifications may 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: Refrigerant Piping Installation

    Be sure no traps or sags are present. • LG prefers the use of hard drawn copper in pipe segments connecting a Dedicated Outdoor Air System (DOAS) product and an outdoor unit. which can result in injury or death.

  • Page 31: Sample Layout

    Y-branch and the DOAS unit must be calculated by two. • Due to our policy of continuous product innovation, some specifications may 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: Electrical Information

    Do not run the power wiring and the communication cable in the same conduit. It will 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 33: Power Wiring

    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 34 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 35: Communication Cable Specs. From Odu To Doas

    ELECTRICAL INFORMATION Communication Cable Specifications From Outdoor Unit to DOAS Units • Communication cable from Main Outdoor Unit to DOAS Units is to be LG supplied or field supplied 18 AWG, 2 (2 conductor), twisted, stranded, shielded. Never splice communications cable. Ensure the communication cable shield is properly grounded to the Main Outdoor Unit chassis only.

  • Page 36: Connection Procedure

    Wiring must comply with all applicable local and national codes. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 37: Field Wiring

    Figure 30: Communications Cable Between Main Outdoor Unit and Sub Unit. Outdoor 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 38: Field-Mounted Sensors

    Set Min. / Max. Value: Refer to the sensor manufacturer datasheet. Due to our policy of continuous product innovation, some specifications may 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 Type 0~10Vdc Terminal Strip TB @ Main 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 40: Leak Pressure Check / Evacuation

    Do not apply power to the units before performing a system leak test. There is a possibility that the EEV valves will 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 41: Ambient Conditions

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

  • Page 42: Evacuation

    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 43 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 44 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 45: Charging Refrigerant

    For refrigerant charge purposes, consider only the liquid line; ignore the vapor line(s). Due to our policy of continuous product innovation, some specifications may 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: Checks Before Initial Startup

    14. Record the installation date: Record the installation date on the accessory REQUEST FOR THE INDICATION label and attach the label on the back of the front panel. Due to our policy of continuous product innovation, some specifications may 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: Electric Preheater Accessory

    There is risk of 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 48: Safety Precautions

    Failure to carefully read and follow all instructions in this manual can result in equipment malfunction or property damage. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 49 Unit may malfunction. otherwise it will result in product malfunction. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 50: Overview

    Conductor Fan Relay Interface Module 24V AC Input Due to our policy of continuous product innovation, some specifications may 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: General Data

    1,600 1,800 1,700 1,900 1,800 2,000 1,900 2,000 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 52: Dimensions

    Figure 37: 10 kW Electric Preheater Dimensions (ZWPREHTR01). Due to our policy of continuous product innovation, some specifications may 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 Figure 38: 20 kW Electric Preheater Dimensions (ZWPREHTR02). Due to our policy of continuous product innovation, some specifications may 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: Wiring Diagram

    Figure 39: DOAS / Pre-Heater Interlock 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 55 Wiring Diagram Figure 40: Pre-Heater Internal 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 56: Installation Procedure

    Step 2: Location Selection (Remote Mounted Installations Only). If the electric preheater is to be installed in a remote location where it is not directly connected to the LG Compact DOAS unit, choose a location that conforms to the following: •...
  • Page 57 Rear access is required to install the connecting screws. Connect the Compact DOAS unit to the Electric Preheater before connecting ductwork to the Electric Preheater inlet. 1. Remove the MERV 8 filters from the LG Split Compact DOAS and use them within the electric preheater. NOTE Figure 42: Removing the MERV Filters.
  • Page 58 17-3/8 21-1/4 54-1/2 39-1/16 56-9/16 29-1/2 1-1/16 8-7/16 ZWPREHTR02, 20 kW Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 59: Sequence Setting

    Figure 49: Preheat Heater Control Section (Step 2). Due to our policy of continuous product innovation, some specifications may 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 Figure 52: Target Mixed Air and Heater Enabling OA Temperature Section (Step 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 61 • Every parameter logic follows hysteresis of ± 2°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 62 Figure 54: Fan Only Mode. Figure 55: Fan Only Mode Setpoint. Due to our policy of continuous product innovation, some specifications may 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 • Space temperature, Space Humidity, CO2 Concentrations sensor, Supply temperature, Supply Humidity Sensor can be overridden by BMS. Figure 57: BMS Sensor Override Function. Due to our policy of continuous product innovation, some specifications may 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: Controller

    LLC.) 3. Type in IP address 192.168.1.101 (factory-configured). Due to our policy of continuous product innovation, some specifications may 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: Service Password

    DOAS Unit Address Settings LG DOAS can be connected up to a maximum of four (4) units on a Multi V 5 heat recovery outdoor unit system. If more than two (2) DOAS units are installed, the DOAS / heat recovery unit (integral part of the Split Compact DOAS) addresses must match. Factory set value is 0.

  • Page 66: Central Controller Setting

    • AC Smart or ACP Address = 12 (Hex) Figure 63: Device I.D. Screen. Due to our policy of continuous product innovation, some specifications may 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: Ac Smart / Acp Controller Setup

    Figure 69: Clicking “Send All” to Finish Adding Devices (Step 5). Due to our policy of continuous product innovation, some specifications may 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 Figure 72: Selecting “View Details” (Step 8). Figure 73: Selecting “Info” (Step 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 69 Modbus Sub Address: 2 Modbus Sub Address: 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 70: Main Control Board Terminal Connections

    • See the wiring schematics shipped with the unit for factory-configured terminal connection points for all units. Figure 76: CAREL Control Board Layout. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 71: Lg Control Board Layout

    If the fan is operating, it indicates as Unit ON. Due to our policy of continuous product innovation, some specifications may 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: Ui Module

    Space / Return Duct Relative Humidity (Field Option) 0 – 10Vdc -130-210°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 73: Ntc Module

    Outdoor Air Temperature After Wheel NTC 10k -130-210°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 74: Eev Module

    Reheat Coil EEV Step Control 0 - 1,350 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

  • Page 75: Navigation

    2. Sequentially click two keypad buttons (Main, Alarm, Escape, Up, Enter, Down). Due to our policy of continuous product innovation, some specifications may 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 Supply air fan status. Rotation indicates airflow; static blades indicate no airflow. Cooling Heating Economizing Dehumidifying Defrost Due to our policy of continuous product innovation, some specifications may 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 Economizer Ramp Login Ramp Output Refrigerant Status1 Refrigerant Status2 Due to our policy of continuous product innovation, some specifications may 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: Software Update

    Figure 90: Checking the Software Version (Step 8). Figure 91: Web User Interface (Step 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 79: Bacnet / Modbus Object List

    30073 InputRegister 2 Recirculation Air Damper Integer Value Due to our policy of continuous product innovation, some specifications may 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 Read_NoWrite 39041 InputRegister 2 Input Voltage Integer Value Due to our policy of continuous product innovation, some specifications may 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 Analog Input 9144 Read_NoWrite 39145 InputRegister 2 Phase Current Due to our policy of continuous product innovation, some specifications may 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 Analog Input 1057 Read_NoWrite 40058 HoldingRegister Setpoint TemperatureControl Due to our policy of continuous product innovation, some specifications may 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 Integer Value 1150 Read_NoWrite 40151 HoldingRegister CO2OfEAFan Setpoint Due to our policy of continuous product innovation, some specifications may 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 Binary Input Read_NoWrite 10022 DiscreteInput Opening Position (Pulse) Due to our policy of continuous product innovation, some specifications may 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 Forced Unit Operation Binary Value 1062 Read_NoWrite Coil Due to our policy of continuous product innovation, some specifications may 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: Installation Checklist

    (factory provided internal high level float switch will shut down cooling operation if high water level in the pan is detected)? Due to our policy of continuous product innovation, some specifications may 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 (inadequate settings may generate undesirable noise). Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
  • Page 88 Who to Call for Assistance Freight Damage and Unit Replacements Your LG Manufacturer Representative Missing Parts Your LG Manufacturer Representative Freight Damage and Unit Replacements Your LG Manufacturer Representative Wrong Unit Model Your LG Manufacturer Representative Installation, Startup, and Commissioning Technical Assis-...

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