LG Electronics LP121HEM-Y8 manual Features and Benefits, Sleeve and the Rear Grille

Page 3

1.2 FEATURES AND BENEFITS

The PTAC has many features, some of which are different than those found on conventional PTAC units. The servicer must be familiar with these features in order to properly service the unit.

THE SLEEVE AND THE REAR GRILLE

(Available as an option)

VERTICAL AIR DEFLECTOR

SLEEVE ASSEMBLY

REAR GRILLE

(Horizontal Louver)

(Including Aluminum Rear Grille)

(Aluminum Rear Grille)

AIR FILTER

INLET GRILLE (Air Intake)

EXPANDED METAL GRILLE (Superior for a performance)

IIR (Infinite Impulse Response)

The IIR function senses the temperature several times per second and makes micro-adjustments several times per

Compressor Restart Delay

This feature extends the overall life of compressor by preventing the short-cycling of the air-conditioner. When the compressor restarts, LG PTAC is designed to give a minimum of three minutes to have a time of equalizing the refrigerant pressures for optimizing cycling.

Fan-Only Setting - High/Low

The fan can run at HIGH or LOW speed without COOLING or HEATING to provide air circulation and ventilation.

Indoor Fan Speed Selections - High/Low

The fan can run at HIGH or LOW speed for either COOLING or HEATING.

Two Fan motors

The unit has two fan motors to provide quiet operation and maximum efficiency.

LED Diagnostics

All units have this feature indicating the problem when the unit is not operating properly with easy-to-read diagnostics. For example, 1 blink every 2 seconds indicates compressor failure.

Copyright ©2008 LG Electronics. Inc. All right reserved.

- 3 -

Only for training and service purposes

LGE Internal Use Only

 

Image 3
Contents SVC Manual LGE Internal Use Only SpecificationSleeve and the Rear Grille Features and BenefitsQuick Heater Recovery Door Switch/Occupancy SensorOutdoor Air Temperature Switchover Temperature limitsCooling only Model Control LocationsOperation Electric Heating Model VentilationAdditional Controls Temperature LimitingAdditional Controls Removing the Front GrilleFront Desk Control Molex Housing SpecREMOTE/LOCAL Control Energy SaverDisassembly Instructions Mechanical PartsFront Grille Control BOX Electric Heater Electric Heater Model only AIR Handling PartsAxial FAN Cross Flow FANCompressor Electrical PartsShroud Outdoor Motor6 P.C.B Power CordCapillary Tube Refrigeration CycleCondenser EvaporatorLGE Internal Use Only Pulling Vacuum Dimension of sleeve assembly optional InstallationHOW to Install the Unit Dimension of air conditionerWall Sleeve Installation Wall Case Installation DataGeneral Preparation of the Wall Case for All Types of Construction Installation of Wall Case in Wall OpeningAs shipped, the LG wall sleeve is ready for installation Preparation of the Front GrilleLGE Internal Use Only Sub-Base Connected Unit Installation 208, 230, and 208/230 Volt Units Electrical SafetyElectrical Requirements Electrical Data for 230/208V ModelDescription Field Installed AccessoriesInstallation Control Panel Key LockCondensate Disposal Pump Kit Installation Part No AYSB2101Hazardous Voltage Place the top cover assembly back into the unit Spraying Architectural Grille Architecture Grille Aluminum Single PackDrain Installation Condensate Drain kitPart No AYDR101 Outdoor Drain Kit Installation Outdoor Drain Kit InstallationPart No AYLL101 Indoor Drain Kit InstallationChecklist Leveling LegsLeveling Leg Assembly Installation on Wall Sleeve Leveling Leg AssemblyUse Copper Conductors Only Hard Wire KitJunction Box Kit Installation and Wiring Procedure Part No AYAGALA01Volt Units 208/230 Volt UnitsPart No AYRE110 Remote Escutcheon KitPart No AYSB1101 230/208V 20A AYSB2101 230/208V 30A SubbaseSubbase with provided screws. Figure After wiring is complete, mount covers a and F toTo each installation instruction for that accessory Skirting Hole Location Right Cover Assembly066mm 406mm 505mm Troubleshooting GuideOutside Dimensions Piping SystemTroubleshooting Guide Fails to Start Complaint Cause Remedy 208/230V 187V 253V Room AIR Conditioner Voltage LimitsComplaint Cause Remedy Th4 Thermistor for Condenser pipe Air temperature Piping DiagramsTh2 Thermistor for Evaporator pipe temperature Th3 Thermistor for outdoor Air temperatureCN-NN Schematic Diagram435300B Exploded ViewJanuary