LG LB-C428GSS0 - User Manual

ENGLISH
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LG Concealed Duct
Air Conditioner
INSTALLATION MANUAL
LG
IMPORTANT
• Please read this installation manual completely before
installing the product.
• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.
• Installation work must be performed in accordance with
the national wiring standards by authorized personnel
only.
• Please retain this installation manual for future reference
after reading it thoroughly.

LG LB-C428GSS0 Specifications

General

Cooling Capacity	12000 BTU/h
Refrigerant	R410A
Power Supply	220-240V, 50Hz
Type	Split System
Operating Temperature (Heating)	24 °C

Summary

Safety Precautions

Installation Safety

Guidance on electrical safety, circuit breakers, grounding, and contact for electrical work.

Installation of Indoor, Outdoor Unit

Location Selection

Criteria for selecting optimal indoor and outdoor unit installation locations.

Indoor Unit Installation

Covers indoor unit installation methods, mounting, drainage, and suspension bolt procedures.

Drain Piping and Insulation

Guidelines for drain piping gradient, insulation thickness, and U-trap installation.

Piping, Insulation, and Testing

Covers pipe insulation, thermal insulation, and final system tests.

Refrigerant Piping and Outdoor Unit

Specifics on refrigerant piping, outdoor unit location, and maintenance space.

Electrical Wiring

Requirements and connection steps for electrical wiring.

Connecting Cables between Indoor and Outdoor Unit

Indoor Unit Wiring

Air Purging and Evacuation

Leakage Testing and Evacuation

Detailed procedures for leakage testing and system evacuation.

E.S.P. (External Static Pressure) Setting

How to Set E.S.P?

RPM Change Procedure