LG LP093HDUC Manual
LG LP093HDUC Manual

LG LP093HDUC Manual

Air conditioner/heat pump

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Internal Use Only
http://biz.lgservice.com
LG Packaged Terminal
Air conditioner/Heat Pump
SVC MANUAL(Exploded View)
MODEL : LP073HDUC LP093HDUC
LP123HDUC LP153HDUC
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.

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Table of Contents
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Summarization of Contents

Specification
1.1 Features and Benefits
Details various features and benefits of the PTAC unit.
1.2 Control Locations
Describes the location and function of control levers and indicators.
Electronic Controls
Explains the function of each button and setting on the electronic control panel.
1.3 Self-Diagnosis
Provides information on self-diagnosis features and fault codes for troubleshooting.
1.4 Additional Controls
Details additional controls and dip switch settings for unit configuration.
Remote/Local Control
Explains the operation mode selection between remote thermostat and local controls.
Energy Saver
Describes the energy saver function and its impact on fan operation.
Front Desk Control
Details the front desk control feature for unit operation.
Remote Wall Thermostat
Explains how to connect and use a remote wall thermostat for unit control.
Disassembly Instructions
2.1 Mechanical Parts
Covers the disassembly of mechanical components of the unit.
2.1.1 Front Grille
Step-by-step guide for removing and reinstalling the front grille.
2.1.2 Control Box
Procedures for removing and reinstalling the control box assembly.
2.2 Air Handling Parts
Details disassembly of air handling components.
2.2.1 Electric Heater
Steps for removing the electric heater component.
2.2.2 Cross Flow Fan
Procedure for removing and reinstalling the cross flow fan.
2.2.3 Axial Fan
Procedure for removing and reinstalling the axial fan.
2.2.4 Shroud
Instructions for removing and reinstalling the shroud.
2.3. Electrical Parts
Covers disassembly of electrical components.
2.3.1 Outdoor Motor
Steps for removing and reinstalling the outdoor motor.
2.3.3 Compressor
Procedures for discharging refrigerant and removing the compressor.
2.3.4 Capacitor
Steps for removing and reinstalling the capacitor.
2.3.5 Power Cord
Procedure for removing and reinstalling the power cord.
2.3.6 P.C.B.
Steps for removing and reinstalling the Printed Circuit Board (PCB).
2.4 Refrigeration Cycle
Procedures for disassembling refrigeration cycle components.
2.4.1 Condenser
Procedure for removing and reinstalling the condenser.
2.4.2 Evaporator
Steps for removing and reinstalling the evaporator.
2.4.3 Capillary Tube
Procedure for removing and reinstalling the capillary tube.
Installation
3.1 How to Install the Unit
General instructions for installing the air conditioner unit into the wall sleeve.
3.2 Wall Sleeve Installation
Detailed guide for the proper installation of the wall sleeve.
3.2.1 Wall Case Installation Data
General data and considerations for installing the wall case.
3.2.2 Preparation of the Front Grille
Instructions for preparing the front grille for wall sleeve installation.
Framing for Wall Case
Details on framing the wall case for various construction types.
Wall Section - Detailed Side View
Illustrates the detailed side view of the wall section for installation.
3.2.3 Unit Installation
Steps for sliding and securing the unit into the installed wall sleeve.
3.3 Electrical Requirements
Essential electrical data and safety guidelines for unit installation.
3.3.1 Electrical Data (for 208/230V Model)
Specific electrical data for 208/230V models.
3.3.2 Electrical Safety
Critical safety instructions, especially regarding grounding.
Field Installed Accessories
Control Panel Key Lock
Kit to prevent tampering of unit controls, includes installation guide.
Condensate Disposal Pump Kit Installation
Installation guide for the internal condensate pump kit.
Architecture Grille Aluminum - Single Pack
Installation instructions for stamped and architectural aluminum grilles.
Condensate Drain kit
Components and installation of the condensate drain kit.
Outdoor Drain Kit Installation
Procedure for installing the outdoor wall sleeve drain kit.
Indoor Drain Kit Installation
Installation of the internal drain for condensate removal.
Leveling Legs
Installation guide for leveling legs to support and level the wall sleeve.
Leveling Leg Assembly
Procedure for assembling and installing the leveling legs.
Installation on Wall Sleeve
Steps for attaching and adjusting leveling legs to the wall sleeve.
Hard Wire Kit
Installation and wiring procedures for the hard wire junction box kit.
Junction Box Kit Installation and Wiring Procedure
Detailed steps for installing the junction box and wiring the unit.
208/230 Volt Units
Wiring instructions for 208/230 Volt units using the hard wire kit.
265 Volt Units
Wiring instructions for 265 Volt units using the hard wire kit.
Fuse Holder Kit
Installation guide for the optional fuse holder kit.
Fuse Holder Kit Installation (Without Subbase)
Procedure for installing fuse holder kit without using a subbase.
Fuse Holder Kit Installation (With Subbase)
Procedure for installing fuse holder kit with a subbase.
Remote Escutcheon Kit
Kit to replace the standard escutcheon with a remote-controlled version.
Subbase
Installation of the subbase for the unit, including wiring and mounting.
Troubleshooting and Diagrams
5.1 Outside Dimensions
Diagram showing the external dimensions of the air conditioner unit.
5.2 Piping System
Description of the refrigeration system's components and refrigerant flow.
5.3 Troubleshooting Guide
Guide to diagnose and resolve common unit problems and malfunctions.
6. Piping Diagrams
Visual representation of the unit's refrigeration piping system.
7. Schematic Diagram
Electrical schematic illustrating the unit's wiring and components.
8. Exploded View
Illustrated breakdown of the unit's components for identification.

Table of Contents