LG A3UQ26GFA0 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.

TYPE : MULTI

www.lg.com

P/NO : MFL67452304

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2TIPS 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 to 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 labeled on the side of each unit.

Dealer’s name :

Date of purchase :

IMPORTANT SAFETY INSTRUCTIONS 3

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product

! WARNING

It can result in serious injury or death when the directions are ignored

! CAUTION

It can result in minor injury or product damage when the directions are ignored

! WARNING

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

•Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.

•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.

•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.

•If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration from exceeding the safety limit when the refrigerant leaks. Consult the dealer regarding the appropriate measures to prevent the safety limit from being

exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, Hazards due to lack of oxygen in the room could result.

Installation

•Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse. 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 by yourself. There is risk of fire or electric shock.

•Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire. 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 due to dust , water etc.

•Use the correctly rated breaker or fuse. There is risk of fire or electric shock.

•Do not modify or extend the power cable. If the power cable or cord has scrathes or skin peeled off or deteriorated then it must be replaced. There is risk of fire or electric shock.

•For installation, removal or reinstall , 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. Be sure that the installation area does not deteriorate with age. It may cause product to fall.

•Never install the outdoor unit on a moving base or a place from where it can fall down. The falling outdoor unit can cause damage or injury or even death of a person.

•In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge the capacitor completely before conducting the repair work.

An charged capacitor can cause electrical shock.

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	4	IMPORTANT SAFETY INSTRUCTIONS
<![if ! IE]> <![endif]>ENGLISH	• When installing the unit, use the installation kit provided with the product. Otherwise the unit
	may fall and cause severe injury.
	• Indoor/outdoor wiring connections must be secured tightly and the cable should be routed
	properly so that there is no force pulling the cable from the connection terminals. Improper or
	loose connections can cause heat generation or fire.
	• Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after
	installation or svc and then tear away and throw away the plastic packaging bags. Children
	may play with them and cause injury.
	• Be sure to check the refrigerant to be used. Please read the label on the product. Incorrect
	refrigerant used can prevent the normal operation of the unit.

Operation

•When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center for repair before using it again. There is risk of fire or eletric shock.

•Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the equipment. The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.

•Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking out. There is risk of electric shock or fire.

•Do not place a heater or other heating appliances near the power cable. There is risk of fire and electric shock.

•Do not allow water to run into electric parts. Install the unit away from water sources. There is risk of fire, failure of the product, or electric shock.

•Do not store or use or even allow flammable gas or combustibles near the product. There is risk of fire.

•Do not use the product in a tightly closed space for a long time. Perform ventilation regularly. Oxygen deficiency could occur and hence harm your health.

•Do not open the front grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.

•If strange sound, smell or smoke comes from product.Immediately turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.

•Ventilate the product room from time to time when operating it together with a stove, or heating element etc. Oxygen deficiency can occur and hence harm your health.

•When the product is not to 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.

•Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit. This could result in personal injury and product damage.

•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.

•When flammable gas leaks, turn off the gas and open a window for ventilation befor turning on the product. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

!CAUTION

Installation

•Two or more people must 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.

•Install the drain hose to ensure that the condensed water is drained away properly. A bad connection may cause water leakage.

•Keep level even when installing the product. To avoid vibration or noise.

IMPORTANT SAFETY INSTRUCTIONS		5
• Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant lev-		<![if ! IE]> <![endif]>ENGLISH

• Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods. It may cause a problem for your neighbors and hence dispute.

els may cause failure of product.

Operation

•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.

•Do not block the inlet or outlet of air flow. It may cause product failure.

•Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.

•Do not touch the metal parts of the product when removing the air filter. There is risk of personal injury.

•Do not step on or put anyting on the product. (outdoor units) There is risk of personal injury and failure of product.

•Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency.

•Do not insert hands or other objects through the air inlet or outlet while the product is operating. There are sharp and moving parts that could cause personal injury.

•Be cautious when unpacking and installing the product. Sharp edges could cause injury.

•If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas. The refrigernat gas can cause frostbite (cold burn).

•Do not tilt the unit when removing or uninstalling it. The condensed water inside can spill.

•Do not mix air or gas other than the specified refrigerant used in the system. If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.

•If the refrigerant gas leaks during the installation, ventilate the area immediately. Otherwise it can be harmfull for your health.

•Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

•Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or product failure.

•Do not recharge or disassemble the batteries. Do not dispose off batteries in a fire. They may burn or explode.

•If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

•If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

•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.

•Do not expose your skin or kids or plants to the cool or hot air draft. This could harm to your health.

•Do not drink the water drained from the product. It is not sanitary and could cause serious health issues.

•Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height. Be careful and avoid personal injury.

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6TABLE OF CONTENTS

TABLE OF CONTENTS

	2	TIPS FOR SAVING		29 AIR PURGING AND EVAC-
		ENERGY			UATION
	7	INSTALLATION	29		Checking method
			30		Evacuation
	8	INSTALLATION OF
		INDOOR, OUTDOOR	31		INSTALLATION PI485
		UNIT
				32	TEST RUNNING
	8	Select the best location
	9	Fixing Installation Plate		33	FUNCTION
	10	Piping length and elevation	33		Dip S/W Setting
	11	Refrigerant charge
			34		Forced Cooling Operation
	12	INSTALLATION OF	35		Wiring Error Check
			35		Saving Power Consumption
		WIRED REMOTE CON-	36		Night Quiet Mode
		TROLLER	37		PCB Display(18/26k Model Only)
	14	Wired remote controller installation	38
	15				INSTALLATION GUIDE AT
		FLARING WORK AND			THE SEASIDE
		CONNECTION OF PIPING

15Flaring work

16Connection of piping - Indoor

18 Connection of piping - Outdoor

21Installation

22Installation of The Main Unit

23CONNECTING THE CABLE

BETWEEN INDOOR UNIT

AND OUTDOOR UNIT

23Connect the cable to the Indoor unit

24Connect the cable to the Outdoor unit

26Connection of Wiring

27CHECKING THE

DRAINAGE AND FORM-

ING THE PIPINGS

27Checking the Drainage

28Forming the Piping

		INSTALLATION	7
INSTALLATION
Installation Parts
Name	Quantity	Shape
Installation plate	1 EA
	SC	SB
	The feature can be changed according a type of model.
Type "A" screw	5 EA
Type "B" screw	2 EA
Type "C" screw	2 EA
Remote control	1 EA
holder

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Installation Tools

Figure	Name	Figure	Name
	Screw driver		Multi-meter
	Electric drill		Hexagonal wrench
	Measuring tape, Knife		Ammeter
	Hole core drill		Gas-leak detector
	Spanner		Thermometer,
			Level
	Torque wrench		Flaring tool set

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8INSTALLATION OF INDOOR, OUTDOOR UNIT

INSTALLATION OF INDOOR, OUTDOOR UNIT

Read completely, then follow step by step.

Select the best location

Indoor unit

1Do not have any heat or steam near the unit.

2Select a place where there are no obstacles in front of the unit.

3Make sure that condensation drainage can be conveniently routed away.

4 Do not install near a doorway.

5Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.

6Use a stud finder to locate studs to prevent unnecessary damage to the wall.

Outdoor unit

1If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.

2Ensure that the spaces indicated by arrows around front, back and side of the unit.

3Do not place animals and plants in the path of the warm air.

4Take the air conditioner weight into account and select a place where noise and vibration are minimum.

5Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.

! CAUTION

Install the indoor unit on the wall where the height from the floors more than 2,3 meters.

More than
10cm	More than 20cm

More than

10cm

More than 2,3m

More than

10cm

More than 20cm

More than 10cm

More than 2,3m

More than

10cm	More than 20cm

More than 10cm

More than 2,3m

Rooftop Installations

If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting.

		more than 60cm
	more than	more than
	30cm
		30cm
	more than	more than
	70cm	60cm
		more than 60cm
		more than
		30cm
	more than
	30cm

more than 70cm

more than 60cm

INSTALLATION OF INDOOR, OUTDOOR UNIT 9

Fixing Installation Plate

The wall you select should be strong and solid enough to prevent vibration

1Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts.

-Mount the installation plate horizontally by aligning the centerline using a level.

<Type 1>

Installation Plate

Type "A" Screws

Chassis

Hook

<Type 2>

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Indoor Type	Capacity	Type
	(kBtu/h)
Wall mounted	9 / 12	1
/ART COOL
	18 / 24	2
Mirror

<Type 1>

Place a level on raised tab

Unit Outline

442

442

<![if ! IE]> <![endif]>Leftrear piping	Ø70		<![if ! IE]> <![endif]>Rightrear piping
		Installation Plate	Ø70
	133		95
	175		217
			(Unit : mm)

<Type 2>

Place a level on raised tab

Unit Outline

460

570

Ø65	Installation Plate		Ø65
Left rear
	Measuring Tape		Right rear
piping		56	piping
69
105	Measuring Tape		207
	Hanger
		(Unit : mm)

Screws

Chassis

2Measure the wall and mark the centerline. It is also important to use caution concerning the location of the installation platerouting of the wiring to power outlets is through the walls typically. Drilling the hole through the wall for piping connections must be done safely.

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10 INSTALLATION OF INDOOR, OUTDOOR UNIT

Piping length and elevation

Multiple Piping Models															(Unit: m)
Capacity(kBtu/h)			Total Length			Max Length(A/B)				Max Elevation				In - In Elevation
										(h1)					(h2)
18				30			25			15				7,5
26				60			25			15				7,5
30				70			25			15				7,5
36				75			25			15				7,5
48				85			25			15				7,5
Distributor type Models															(Unit: m)
Capacity	Total Length			Max Main Pipe			Total Branch		Max Branch			Max Elevation			In - In Elevation
(kBtu/h)				Length (A/B)			Pipe Length		Pipe Length			(h1)			(h2)
40		135		55			80		15			30			15
48		145		55			90		15			30			15
54		145		55			90		15			30			15

A		A Distributor	Branch Pipe
		h2
		Distributor	h2
h1		h1
		Main Pipe
	B	B

Multiple Piping Type

Distributor Type

! CAUTION

Capacity is based on standard length and maximum allowance length is on the basis of reliability. If outdoor unit is at higher elevation than the indoor units, after 24m of vertical height, 1 oil trap is required.

INSTALLATION OF INDOOR, OUTDOOR UNIT 11

Refrigerant charge

The calculation of the additional charge should be taken in account for the length of extra pipe.

Multiple Piping Models(Additional Charge)

(Unit: g)

Model

Total Piping

18k

26k

30k

36k

48k

Length(m)

– 30

X

X

X

X

X

– 40

-

X

X

X

X

– 50

-

X

X

X

250

– 60

-

X

X

X

450

– 70

-

-

X

X

650

– 80

-

-

-

X

850

– 85

-

-

-

-

950

(X : No addition , - : Not applied)

Distributor type Models

(Unit: m)

Main Piping length

Branch piping length

Model

Standard length(m)

Additional refriger-

Standard length(m)

Additional refriger-

ant(g/m)

ant(g/m)

40k

5

50

5

20

48k

5

50

5

20

54k

5

50

5

20

•Distributor type Models

Additional charge (g) = (( Total Main piping Length - Main Standard Length ) x 50g/m

+(A Room Branch Length – Standard Length ) x 20g/m

+(B Room Branch Length – Standard Length ) x 20g/m

+(C Room Branch Length – Standard Length ) x 20g/m +.. ) - CF(Correction Factor) x 100

CF = Max. number of connectable indoor unit – Total number of connected indoor unit

Ex) Distributor type Model 1Ø, 40kBtu/h

AA

C

a

b

c

7k

9k

9k

B

d

e

9k

18k

•Total main pipe(A+B+C) = 30m

•Each branch pipe a = 10m

b = 8m c = 5m d = 3m e = 10m

*Additional Charge

=((30-5) x 50 + (10-5) x 20 + (8-5) x 20 + (5-5) x 20 + (3-5) x 20 + (10-5) x 20) - (7-5) x 100 = 1 270g

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12 INSTALLATION OF WIRED REMOTE CONTROLLER

INSTALLATION OF WIRED

REMOTE CONTROLLER

1Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup.

-Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box.

2Can set up Wired remote controller cable into three directions.

-Setup direction: the surface of wall reclamation, upper, right

-If setting up remote controller cable into upper and right side, please set up after removing remote controller cable guide groove.

2

2

Remove guide groove with long nose.

		3
Reclamation to the surface of the wall	1	3

Upper part guide groove
Right part guide groove	<Wire guide grooves>

3Please fix remote controller upper part into the setup board attached to the surface of the wall, as the picture below, and then, connect with setup board by pressing lower part.

-Please connect not to make a gap at the remote controller and setup board’s upper and lower, right and left part.

<Connecting order>

Wall				Wall
Side				Side

When separating remote controller from setup	<Separating order>
board, as the picture below, after inserting into
the lower separating hole using screw driver and
then, spinning clockwise, remote controller is	Wall	Wall
separated.	Side	Side
- There are two separating holes. Please individu-
ally separate one at a time.
- Please be careful not to damage the inside
components when separating.