LG Electronics LP121HEM-Y8 6. Piping Diagrams

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Only for training and service purposes LGE Internal Use Only

6. Piping Diagrams

CAPILLARY TUBE

HEAT

EXCHANGER

(EVAPORATOR)

HEAT

EXCHANGER

(CONDENSER)

COMPRESSOR

ACCUMULATOR

Cooling

Heatig

REVERSING VALVE

Th1

Th2

LOC. Description PCB Connector

Th1 Thermistor for indoor Air temperature CN-IDAT

Th2 Thermistor for Evaporator pipe temperature CN-IDPT

Th3 Thermistor for outdoor Air temperature

CN-ODT

Th4 Thermistor for Condenser pipe Air temperature

Th3

Th4

Contents

Main Copyright 2008 LG Electronics. Inc. All right reserved. 1. Specification Model LP121HEM-Y8 1.2 FEATURES AND BENEFITS THE SLEEVE AND THE REAR GRILLE Page 1.3 CONTROL LOCATIONS OPERATION NOTE ELECTRIC HEATING MODEL COOLING ONLY MODEL 1.4 ADDITIONAL CONTROLS TEMPERATURE LIMITING REMOVING THE FRONT GRILLE ADDITIONAL CONTROLS LOCAL 1OFF 2OFF FRONT DESK CONTROL REMOTE WALL THERMOSTAT REMOTE/LOCAL CONTROL ENERGY SAVER 2. Disassembly Instructions 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 2.1.2 CONTROL BOX 2.2 AIR HANDLING PARTS 2.2.1 ELECTRIC HEATER (ELECTRIC HEATER MODEL ONLY) 2.2.2 CROSS FLOW FAN 2.2.3 AXIAL FAN 2.2.4 SHROUD 2.3. ELECTRICAL PARTS 2.3.1 OUTDOOR MOTOR 2.3.2 INDOOR MOTOR 2.3.3 COMPRESSOR 2.3.4 CAPACITOR 2.3.5 POWER CORD 2.3.6 P.C.B. 2.4 REFRIGERATION CYCLE 2.4.1 CONDENSER 2.4.2 EVAPORATOR 2.4.3 CAPILLARY TUBE Page Page 3. Installation 3.1 HOW TO INSTALL THE UNIT Dimension of air conditioner Recommended Dimension of sleeve assembly (optional) 3.2 WALL SLEEVE INSTALLATION 3.2.1 Wall Case Installation Data 3.2.2 PREPARATION OF THE FRONT GRILLE Brick, Frame, Stucco and Shingle Construction Preparation of the Wall Case for All Types of Construction Installation of Wall Case in Wall Opening Page WALL SECTION DETAILED SIDE VIEW FRAME AND BRICK VENEER INSTALLATION Cord Set Connected Sub-Base Connected 3.2.3 UNIT INSTALLATION 3.3 ELECTRICAL REQUIREMENTS 3.3.1 ELECTRICAL DATA (FOR 230/208V MODEL) 3.3.2 ELECTRICAL SAFETY 4. Field Installed Accessories Control Panel Key Lock Condensate Disposal Pump Kit Installation Figure 31 Figure 32 Figure 33 Figure 36 Figure 37 Figure 35 Figure 34 Page Architecture Grille Aluminum - Single Pack Condensate Drain kit Drain Installation Outdoor Drain Kit Installation Indoor Drain Kit Installation Leveling Legs Page Hard Wire Kit Junction Box Kit Installation and Wiring Procedure 208/230 Volt Units 265 Volt Units Remote Escutcheon Kit Subbase Figure 58 - Part/Location Identification Figure 61 - NEMA Plug Configurations Part/Location Identification A B C D E F 11-13/16" (300 mm) Figure 59 - Dimensions 5. Troubleshooting Guide 5.1 OUTSIDE DIMENSIONS 1,066mm (42") EVAPORATOR COILS CONDENSER COILS 406mm (16") 5.3 TROUBLESHOOTING GUIDE Page Page ROOM AIR CONDITIONER VOLTAGE LIMITS Page 6. Piping Diagrams 7. Schematic Diagram 8. Exploded View F E B 249941A 149410