LG AK-W300LC00 installation manual

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INSTALLATION MANUAL

AIR

CONDITIONER

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.

SINGLE PACKAGE TYPE AIR CONDITIONER

www.lg.com

MFL67445824

Rev.05_040621

Copyright © 2019 - 2021 LG Electronics Inc. All Rights Reserved.

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2 TIPS FOR SAVING ENERGY

TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:

•Do not cool excessively indoors. This may be harmful for your health and may consume more electricity.

•Block sunlight with blinds or curtains while you are operating the air conditioner.

•Keep doors or windows closed tightly while you are operating the air conditioner.

•Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

•Speed up the fan to cool or warm indoor air quickly, in a short period of time.

•Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours.

•Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

SAFETY INSTRUCTIONS 3

SAFETY INSTRUCTIONS

The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance.

The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below.

!This symbol is displayed to indicate matters and operations that can cause risk.

Read the part with this symbol carefully and follow the instructions in order to avoid risk.

!WARNING

This indicates that the failure to follow the instructions can cause serious injury or death.

! CAUTION

This indicates that the failure to follow the instructions can cause the minor injury or damage to the product.

! WARNING

•Installation or repairs made by unqualified persons can result in hazards to you and others.

•Installation shall be in accordance with national standards of electrical appliances.

•The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

•Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

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 circuit breaker.

-Improper wiring or installation may cause fire or electric shock

•Use the correctly rated circuit breaker or fuse.

-There is risk of fire or electric shock.

•Use the specified wires to connect the unit.

-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. Be especially careful of the case edges and the fins on the condenser and evaporator.

•For installation, always contact the dealer or an Authorized Service Center.

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

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

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	4	SAFETY INSTRUCTIONS
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	• Be sure the installation area does not deteriorate with age.
	- If the base collapses, the air conditioner could fall with it, causing property damage, product failure,
		and personal injury.
	• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress
	air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion.
	- There is the risk of death, injury, fire or explosion.
	• When using Thermostat, be sure to use double insulated thermostat.

Operation

•Take care to ensure that power cable could not be pulled out or damaged during operation.

-There is risk of fire or electric shock.

•Do not place anything on the power cable.

-There is risk of fire or electric shock.

•Do not touch(operate) the product with wet hands.

-There is risk of fire or electrical shock.

•Do not place a heater or other appliances near the power cable.

-There is risk of fire and electric shock.

•Do not allow water to run into electric parts.

-It may cause failure of the product or electric shock.

•Do not store or use flammable gas or combustibles near the product.

-There is risk of fire or failure of product.

•Do not use the product in a tightly closed space for a long time.

-Oxygen deficiency could occur.

•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

•If strange sounds, smell or smoke comes from product. Turn the circuit breaker off or disconnect the power supply cable.

-There is risk of electric shock or fire.

•Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.

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

•Do not open the panel of product during operation. (If the unit has the electrostatic filter, Do not touch it.)

-There is risk of physical injury, electric shock, or product failure.

•When the product is soaked (flooded or submerged), contact an Authorized Service Center.

-There is risk of fire or electric shock.

•Be cautious that water could not enter the product.

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

•Ventilate the product from time to time when operating it together with a stove, etc.

-There is risk of fire or electric shock.

•Turn the main power off when cleaning or maintaining the product.

-There is risk of electric shock.

•When the product is not be used for a long time, turn off the circuit breaker.

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

•Take care to ensure that nobody could step on or fall onto the unit.

-This could result in personal injury and product damage.

SAFETY INSTRUCTIONS 5

! CAUTION

Installation

•Always check for gas (refrigerant) pressure after installation or repair of product.

-Low refrigerant levels may cause failure of product.

•Install the drain hose to ensure that water is drained away properly.

-A bad connection may cause water leakage.

•Keep level even when installing the product.

-To avoid vibration or water leakage.

•Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.

-It may cause a problem for your neighbors.

•Don't use 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.

•Do not let the air conditioner 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.

Operation

•Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.)

-This could harm to your health.

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

-There is risk of damage or loss of property.

•Turn on the power at least 6 hours before starting operation.

-Starting operation immediately after turning on the main power switch can result in severe damage to internal parts. Keep the power switch turned on during the operational season.

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6 TABLE OF CONTENTS

TABLE OF CONTENTS

2TIPS FOR SAVING ENERGY

3SAFETY INSTRUCTIONS

7INTRODUCTION

7Features

8DIMENSIONAL DATA

9INSTALLATION OF UNIT

9Inspection

9Location and Recommendations

10 Ductwork

10Change Airflow

11Condensate Drain Piping

11 2 Inch filter Installation

112 Inch filter installation guide

122 Inch filter removal guide

13Installation of Remote Controller(Accessory)

17Electronic Wiring

18Field Wiring

20 Connect the cable to the Product

22 DIP Switch Setting in Indoor Main PCB

22Group Control

23INSTALLER SETTING

23How to enter installer setting

24ESP setting

25Test run setting

26Self-Diagnosis Function

31Starting the Unit

32Final Installation Checklist and Maintenance

34 Installation guide at the seaside

INTRODUCTION 7

INTRODUCTION

Features

Front View

Air outlet vents

Supply Air

Control

access panel

Return Air

Rear View

Air outlet vents

Compressor
Access panel
Drain Hole
Motor Access Panel	Air intake
	vents

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8 DIMENSIONAL DATA

DIMENSIONAL DATA

Single packaged Units are designed for outdoor mounting with vertical condenser discharge. They can be located either at ground level or on roof.

Each unit contains an operating charge of Refrigerant as shipped.

	Product Dimensions (Figure 1A)		More than 860(33-7/8)
		[Unit : mm (inch)]			More than 1 160(45-11/16)
	Tool	KE
	A	1 242(48-29/32)
	B	2 230(87-25/32)					A
	C	3 520(138-19/32)	Drain Hole	C
	D	2 673(105-6/25)			D		B
			More than 1 160(45-11/16)			More than 860(33-7/8)
	Horizontal Flow Application				Figure 1A [Unit : mm (inch)]
	(Figure 1B)
		[Unit : mm (inch)]
	Tool	KE	More than 860(33-7/8)
					More than 1 160(45-11/16)
	A	460(18-1/8)
	B	684(26-7/8)
	C	506(19-15/16)
	D	173(6-3/4)		H
	E	142(5-5/8)		G
	F	1 033(40-11/16)
				A		F
	G	213(8-7/16)			B		More than
			More than		C	E
							860(33-7/8)
	H	899(35-7/16)			D
			1 160(45-11/16)
					Figure 1B [Unit : mm (inch)]
	Down Flow Application (Figure 1C)				F	E
					<![if ! IE]> <![endif]>RETURN		D
		[Unit : mm (inch)]					C
	Tool	KE			H	G	B
	A	460(18-1/8)			<![if ! IE]> <![endif]>SUPPLY		A
	B	724(28-9/16)
	C	506(19-15/16)
	D	142(5-10/16)
	E	110(4-3/8)
	F	1 033(40-11/16)
	G	97(3-7/8)
	H	899(35-7/16)
					Figure 1C [Unit : mm (inch)]

INSTALLATION OF UNIT 9

INSTALLATION OF UNIT

Inspection

1Check for damage after unit is unloaded. Report promptly, to the carrier, any damage found to unit. Do not drop unit.

2Check the unit nameplate to determine if the unit voltage is correct for the application. Determine if adequate electrical power is available. Refer to the

application specifications.

3 Check to be sure the refrigerant charge has been retained during shipment. Access to 1/4" flare pressure taps may be gained by removing compressor compartment access panel.

Location and Recommendations

Unit Support

If unit is to be roof mounted check building codes for weight distribution requirements.

Lifting Beam

Recommended

Rigging Method

Spreader

Bar

Cable or Chain

Figure 2

	Clevis	Holes in Base
		Rail

Location and Clearances

Installation of unit should conform to local building codes and the National Electrical Code. Select a location that will permit unobstructed airflow into the condenser coil and away from the fan discharge and permit unobstructed service access into the compressor compartment. Suggested airflow clearances and service clearances are given in Figure 1.

Placing and Rigging

Rig the unit using either belt or cable slings. The sling eyelet must be placed through the lifting holes in the base rail of the unit. The point where the slings meet the lifting eyelet should be at least 1.8 m above the unit. Use spreader bars to prevent excessive pressure on the top of the unit during lifting.

NOTE

•The use of "spreader bars" is required when hoisting the unit (prevents damage to sides and top). Top crating can be used as spreader bars.

Roof Mounted Unit

On new roofs, the curb should be welded directly to the roof deck. For existing construction, nailers must be installed under the curb if welding is not possible. Be sure attach the down flow ductwork to the curb before setting unit in place.

When installing the unit, it must be level to insure proper condensate flow from the unit drain pan.

Slab Mount

"For ground level installation, the unit base should be adequately supported and hold the unit near level. The installation must meet the guidelines set forth in local codes."

Chassis		Net Weight
	kg		lbs
KE	915		2 017

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10 INSTALLATION OF UNIT

Ductwork

Ductwork construction guidelines

Connections to the unit should be made with 76 mm(3’) canvas connectors to minimize noise and vibration transmission.

Elbows with turning vanes or splitters are recommended to minimize air noise and resistance.

The first elbow in the ductwork leaving the unit should be no closer than three times blower diameter to avoid turbulence and back pressure.

Attaching Horizontal Ductwork to the Unit

All conditioned air ductwork should be insulated to minimize heating and cooling duct losses. Use minimum of 50 mm(2’) of insulation with a vapor barrier. The outside ductwork must be weather proofed between the unit and the building.

When attaching ductwork to a horizontal unit, provide a flexible water tight connection to prevent noise transmission from the unit to the ducts. The flexible connection must be indoors and molded out of heavy canvas.

Change Airflow

Horizontal flow to Down flow Conversion

1Remove the covers from the down flow openings on the base panel by unscrewing as shown.

2Close the horizontal Supply and Return openings on the front panel by attaching the covers firmly on to it which are removed from the down flow openings.

*Cover assembly should be assembled as insulation being downward.

(1)

(2)

NOTE

• Do not draw the canvas taut between the solid ducts.

Supply

cover

Return

cover

Figure 3

Condensate Drain Piping

A 1 inch female condensate drain connection is located on the corner of the unit next to the motor access panel. A trap should be installed and filled with water before starting the unit to avoid air from being drawn through. Follow local codes and standard piping practices when running the drain line. Pitch the line downward, away from the unit, and avoid long horizontal runs. See Figure 4.

Do not use reducing fittings in the drain lines. The condensate drain must be:

1 Made of 25.4 mm(1") pipe size.(NPT)

2For 6.35 mm per 30.48 cm(Pitched 1/4" per foot) to provide free drainage to convenient drain system.

3 Trapped

4Must not be connected to closed drain system.

	Panel Enclosure
	25.4 mm(1”) Female (NPT)
Static pressure		<![if ! IE]> <![endif]>minimum
		<![if ! IE]> <![endif]>mm(3”)
Drain Pan
		<![if ! IE]> <![endif]>76.2
	Cleanout	<![if ! IE]> <![endif]>mm(3”) minimum
		<![if ! IE]> <![endif]>76.2
	Plug

Figure 4

2 Inch filter Installation

ηThe pre-filter is provided by default, and water cleaning is possible.

ηPre-filter and 2-inch filter can be removed and inserted by opening the side panel of the product.

(Refer to the 2 inch filter installation guide)

NOTE

•Do not operate unit without filters in place.

•Only pre-filter is washable type.

•The 2-inch filter is not provided as default, please purchase and use it locally.

•The prefilter and 2 inch filter can be installed together.

INSTALLATION OF UNIT 11

2 Inch filter installation guide

1 Loosen the screws to open the side panel.

Side panel

2Place the 2 inch filter on the upper and lower bracket and push it in.

3Close the side panel and combine with the screws.

Side panel

η7.5 ~ 25RT install 2 inch filter in order of 1, 2, 3

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