LG Electronics LP121HEM-Y8 7. Schematic Diagram

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Only for training and service purposes LGE Internal Use Only

1YL

OR OR

RD YL

E/HEATER ASSEMBLY

CN-TRANS

CN-COMP

CN-N(N)

CN-IAT

CN-ICT

CN-OUT

CN-EXT(L)

CN-IDF

CN-4WAY

CN-ICR

CN-ODFRY-HEAT2

RY-HEAT1

CN-N(L)

CN-EXT(N)

CN-EXT

7. Schematic Diagram

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