LG LZ-H080GBA4 installation manual

Please read this installation manual completely before installing the product.
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.

VENTILATOR

Original instruction

INSTALLATION MANUAL

AIR
CONDITIONER

www.lg.com

Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved.

MFL67855539

Rev.02_013019

ENGLISH

Table of contents

TABLE OF CONTENTS

3 SAFETY PRECAUTIONS

6 INTRODUCTION

6 Symbols used in this manual

6 Feature dimension diagram

10 INSTALLATION

10 Installation map

12 Installation of main body

12 Connection of duct

14 Method to connect power cord

15 How to connect remote controller(accessory)

16 Group control

17 Installer setting -How to enter installer setting mode

19 TEST RUNNING

19 Method to operate and select air volume – Interlinked operation with ventilation.

20 Method to operate and select air volume – Ventilation single operation

21 In case of finding a problem at a test running

21 Airborne noise emission

21 Available accessories

2 Ventilator

Safety precautions

Safety precautions

To prevent injury to the user or other people and property damage, the following instructions
must be followed.
Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.

ENGLISH

!

WARNING

!

CAUTION

Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

Be sure not to do.

Be sure to follow the instruction.

!

WARNING

Installation

• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.

- There is risk of fire or electric shock.

• For electrical work, contact the dealer, seller, a qualified electrician, or an authorized service center.

- Do not disassemble or repair the product. There is risk of fire or electric shock.

• Always ground the product.

- There is risk of fire or electric shock.

• Install the panel and the cover of control box securely.

- There is risk of fire or electric shock.

• Always install a dedicated circuit and breaker.

- Improper wiring or installation may cause fire or electric shock

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric shock.

• Do not modify or extend the power cable.

- There is risk of fire or electric shock.

• Do not install, remove, or re-install the unit by yourself (customer).

- There is risk of fire, electric shock, explosion, or injury.

• Be cautious when unpacking and installing the product.

- Sharp edges could cause injury.

• For installation, always contact the dealer or an authorized service center.

- There is risk of fire, electric shock, explosion, or injury.

• Do not install the product on a defective installation stand.

- It may cause injury, accident, or damage to the product.

Installation manual 3

Safety precautions

• Do not let the product run for a long time when the humidity is very high and a door or a window is
left open.

- Moisture may condense and wet or damage furniture.

• For re-installation of the installed product, always contact the dealer or an authorized service center.

- There is risk of fire, electric shock, explosion or injury.

• Do not open the maintenance cover of the main body during operation.

- Otherwise, it may cause electrical shock.

• Use the outdoor air suction hole with the net installed to ensure that birds could not come in.

- Remove estrange things like the bird’s nest. Otherwise, it may cause scarcity of indoor oxygen.

• Install the air intake where polluted air can not be directly sucked in.

- It may cause various accidents, including suffocation, due to the suction of harmful gasses(CO,

etc.)

• Do not install this product in a refrigerated warehouse, heated swimming pool or other location
where the temperature and humidity are significantly different.

- There is risk of electrical shock, malfunctioning.

• Install this product in an environment where the temperature ranges from –10 °C to +45 °C and the
relative humidity is less than 80%. It condensation is expected to form, heat up the fresh outside air
using a duct heater etc.

• Install this product in and environments where the outside air intake meets the following conditions:
temperature range is between –15 °C and +40 °C and the relative humidity is 80 % or less.

• Use the designated electrical wires for the terminal board connections, and connect the wires
securely so that they will not become disconnected. (Failure to ensure proper connections may
cause fire.)

• When passing metal ducts through wooden buildings clad with metal laths, wire laths or metal, these
ducts must be installed in such a way that they will not make electrical contact with the metal laths,
wire laths or metal sheets. (Power leakage can cause ignition)

Operation

• Avoid fire equipment

- There is risk of fire.

• When the product is soaked (flooded or submerged), contact an authorized service center.

- There is risk of fire or eletric shock.

• Don't touch a dedicated circuit or breaker with wet hands.

- There is risk of electric shock.

• When the product is not be used for a long time, disconnect the power supply plug or turn off the
breaker.

- There is risk of product damage or failure, or unintended operation.

• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the
product on.

- Do not use the telephone or turn switches on or off.

There is risk of explosion or fire.

• Be cautious that water could not enter the product.

- There is risk of fire, electric shock, or product damage.

• Turn the breaker off when cleaning or maintaining the product.

- There is risk of electric shock.

4 Ventilator

Safety precautions

• The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from the
ventilator unit, and properly insulated. (The entry of rain water may cause power leaks, fire or
damage to household property.)

• Glove should be worn when doing the installation work. (There is risk of injury.)

!

CAUTION

Installation

• Don't connect the ground wire to the window frame or water cock.

- There is risk of electric shock.

• Do not install the product at a smoky and oily place like kitchen or factory.

- Otherwise. oil may adhere to the filter or heating exchanger and cause trouble.

• Install the product in an insulated space from outdoor air.

- In case of installing the product outside of the insulated layer, dewing occurs inside of the main

body in winter.And it causes electrical shock or falling of condensed water.

• Keep level even when installing the product.

- To avoid vibration or water leakage.

• Use two or more people to lift and transport the product.

- Avoid personal injury.

• Do not install the product where it will be exposed to sea wind (salt spray) directly.

- It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator

fins, could cause product malfunction or inefficient operation.

ENGLISH

Operation

• Use a soft cloth to clean. Do not use harsh detergents, wax or thinner, etc.

- Otherwise, color or surface of the oroduct mav deteriorate.

• Clean the filter and the heat exchanger regularly and use the gloves for cleaning.

- Adhering to a mass of dust may cause the deterioration of air volume.

• Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a
consumer ventilator, not a precision refrigeration system.

- There is risk of damage or loss of property.

• Do not block the inlet or outlet of air flow.

- It may cause product failure.

• Do not step on or put anyting on the product.

- There is risk of personal injury and failure of product.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

Installation manual 5

Introduction

Introduction

Symbols used in this manual

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the
product.

NOTICE

This symbol indicates special notes.

Feature dimension diagram

Model : 250 / 350 CMH

Blower for exhausting air

EA

(Exhaust Air)

OA

(Outdoor Air)

Maintenance cover

Total heat exchanger

Suspension fixture

Blower for supplying air

Control box

RA
(Return Air)

SA
(Supply Air )

F

Air filter

Model

250 CMH
350 CMH

h

It necessary to secure sufficient space for maintenance more than the dimensions described in the

Figure Duct pitch WeightPitch of suspension fixture Duct connection flange

A B C D E F G H J K L kg

1 014 988 273 939 1 025 135 200 194 252 96 590 198 44

Nominal

diameter

Unit : mm

product service.

6 Ventilator

Model : 500 CMH

Introduction

ENGLISH

Blower for exhausting air

EA

(Exhaust Air)

OA

(Outdoor Air)

Maintenance cover

Total heat exchanger

Air filter

Suspension fixture

Blower for supplying air

Control box

RA
(Return Air)

SA
(Supply Air )

F

Unit : mm

Model

500 CMH

h

It necessary to secure sufficient space for maintenance more than the dimensions described in the

Figure Duct pitch WeightPitch of suspension fixture Duct connection flange

A B C D E F G H J K L kg

1 014 988 273 939 1 025 135 200 194 252 96 590 198 44

Nominal

diameter

product service.

Installation manual 7

Introduction

Blower for exhausting air

Blower for
supplying air

Control box

Suspension fixture

Maintenance cover

Total heat exchanger

Air filter

F

RA

(Return Air)

SA

(Supply Air)

OA

(Outdoor Air)

EA

(Exhaust Air)

Model : 800 / 1 000 CMH

1 000 CMH

h

It necessary to secure sufficient space for maintenance more than the dimensions described in the
product service.

8 Ventilator

Model

A B C D E F G H J K L kg

800 CMH

1 062 1 140 365 987 1 176 180 250 242 253 98 513 481 62

Figure Duct pitch WeightPitch of suspension fixture Duct connection flange

Nominal

diameter

Unit : mm