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2

Selecting the Installation Location

DANGER

To avoid the possibility of fire, do not install the unit in an area where combustible gas may generate, flow, 

stagnate, or leak. Failure to do so will cause serious bodily injury or death. Before beginning installation, read the 

safety summary at the beginning of this manual.

Note:

Select a location for installing the indoor unit (IDU) that meets the following conditions:

•  Where there is enough structural strength to bear the weight of the unit.

•  Operating sound from the unit will not disturb occupants.

•  Include enough space for service access.

•  Include space for drainage to ensure condensate flows properly out of the unit when it is in cooling mode.

•  Use a level indicator to ensure the unit is installed on a level plane.

Note:

The unit may be damaged, may malfunction, and/or will not operate as 

designed if installed in any of these conditions:

 Do not install the unit near a heat or steam source, or where 

considerable amounts of oil, iron powder, or flour are used. These 
materials may generate condensate, cause a reduction in heat ex-
changer efficiency, or malfuction of the condensate drain. If this is 
a potential problem, install a ventillation fan large enough to vent 
out these materials

 Do not install the unit where it will be subjected to direct ther-

mal radiation from other heat sources.

 Do not install the unit in an area where combustible gas may 

generate, flow, stagnate, or leak. There is the possibility of fire.

 Do not install the unit in a location where acidic solution and 

spray (sulfur) are often used.

 Do not use the unit in environments where oil, steam, or sulfu-

ric gas are present.

 Do not install additional ventilation products on the chassis of 

the unit.

 Do not install the unit near high-frequency generator sources.
 Do not install in an area where the unit will be exposed to volatile organic compounds.

Installing in an Area Exposed to Unconditioned Air

In some installation applications, areas (floors, walls) in some rooms may be exposed to unconditioned air. 

The room may be above or next to an unheated garage or storeroom. To counter  

this condition:
•  Verify that carpet is or will be installed (carpet may increase  

the temperature by three (3) degrees.

•  Install radiant heat or another type of heating system to the floor.

•  Add insulatiion between the floor joists. 

Install a ventilation fan

with sufficient capacity

Heat or steam source

Include enough 

distance

Indoor Unit

Cassette Indoor Units Installation General Information

Cassette Indoor Units Installation Tips

This document contains general installation tips for installing LG cassette indoor units (IDU). Follow all applicable local and national codes 

during installation. For more detailed information, refer to the individual unit’s installation manual on www.lghvac.com.

The typical unit installation includes:
•  Selecting the installation location

•  Installing the unit

•  Connecting refrigerant pipes

•  Connecting drain pipe

•  Connecting communication and power wiring

•  Installing the remote controller (if applicable)

Always follow your system diagrams, including the LATS diagram (if applicable).

Installing Near a Heat or Steam Source

Ceiling Board

Unit: inch

19 -11/16

or more

or more

39 - 3/8

or more

No gap

required

19 -11/16

or less

11 -13/16

“A”

Ceiling Cassette

Ceiling beam or

other obstruction

Any objects in room

(cabinets, furniture, etc.)

Floor

Ceiling

W

A

L

L

Below 36 kBtu:  at least 70 - 7/8;  not more than 11ft 9-23/32in

Over 36 kBtu:  at least 70 - 7/8;  not more than 13ft 9-11/32in

“A” = 

Ceiling Board

Typical Clearances Around Installed Unit

Содержание LCN188HV4

Страница 1: ...em malfunction Do not install the unit in a noise sensitive area Periodically check that the frame is not damaged There is a risk of equipment damage Install the unit in a safe location where nobody can step on or fall onto it Do not install the unit on a defective stand There is a risk of unit and property damage Install the drain hose to ensure adequate drainage There is a risk of water leakage ...

Страница 2: ...ilation products on the chassis of the unit Do not install the unit near high frequency generator sources Do not install in an area where the unit will be exposed to volatile organic compounds Installing in an Area Exposed to Unconditioned Air In some installation applications areas floors walls in some rooms may be exposed to unconditioned air The room may be above or next to an unheated garage o...

Страница 3: ...strictions in the refrigeration components Do not over tighten flare nuts Excessive tightening will cause fittings to crack Insulate Refrigerant Pipes Sufficiently insulate all cold surfaces to prevent moisture forming All pipes must be insulated and each pipe must be separately wrapped Use field provided one half 1 2 inch thick or thicker closed cell insulation The thickness may need to be increa...

Страница 4: ...fire electric shock explosion physical injury or death WARNING The information contained in this manual is intended for use by a trained electrician familiar with applicable local codes and the U S National Electric Code NEC and who is equipped with the proper tools and test instruments Failure to carefully read and follow all instructions in this manual can result in personal injury or death Conn...

Страница 5: ...d Communications Cable Terminals Optional Wired Wall Controller Installation Since the room temperature sensor is inside the remote controller to maintain proper space temperature install the remote controller in a place away from direct sunlight high humidity and direct supply of hot or cold air Install the remote controller about 5 ft above the floor in an area with good air circulation and an a...

Страница 6: ...trations data information and other materials are the property of LG Electronics U S A Inc and are disclosed by LG Electronics U S A Inc only in confidence Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ...

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