LG LUU360HHV, LUU420HHV, LUU480HHV User Manual

FOUR-WAY
CEILING-CASSETTE SYSTEM
ENGINEERING MANUAL
Single-Zone Four-Way
Ceiling-Cassette
Heat Pump Systems
1.5 to 4 Tons
LC188HHV4 (18,000 Btu/h)
LC369HHV (36,000 Btu/h)
LC429HHV (42,000 Btu/h)
LC489HHV (48,000 Btu/h)
LC249HHV (24,000 Btu/h)
SINGLE-ZONE

LG LUU360HHV, LUU420HHV, LUU480HHV Specifications

General

Brand	LG
Model	LUU360HHV, LUU420HHV, LUU480HHV
Category	Heat Pump
Language	English

Summary

LG Air Conditioner Technical Solution (LATS) Software

Product Data Overview

Mechanical Specifications

Covers general system, unit, temperature ranges, casing, refrigerant, and compressor details.

Electrical Data

Unit Dimensions

Outdoor Unit Dimensions

Indoor Unit Dimensions

Acoustic Data

Refrigerant Flow Diagrams

Wiring Diagrams

Indoor Unit Wiring Diagrams

Outdoor Unit Wiring Diagrams

Electrical Connections

Power and Communication Cable Guidelines

Details guidelines for power and communication wiring, including safety warnings.

Controller Options and Connections

Performance Data

Cooling Capacity Data

Provides cooling capacity tables for various indoor/outdoor unit combinations.

Maximum Cooling Capacity Data

Presents maximum cooling capacity tables for various unit combinations.

Heating Capacity Data

Offers heating capacity tables for various indoor/outdoor unit combinations.

Maximum Heating Capacity Data

Provides maximum heating capacity tables for various unit combinations.

Equipment Selection Procedure

Correction Factors and Piping Derates

Details correction factors for piping length, altitude, and elbows for capacity adjustment.

Heating Operation and Unit Selection

Explains defrost correction, unit selection criteria, sizing formulas, and recommendations.

Application Guidelines

Indoor Unit Placement Considerations

Outdoor Unit Placement Considerations

Refrigerant Piping Design Limitations

Outlines pipe size limits, elevation, and additional refrigerant charge requirements.