Lg Asnc091f2g0, Asnc121f2g0, Asnh091f2g1, Asnh121f2g1, Asnh121f2g0 Owner's Manual

Internal Use Only

http://biz.lgservice.com

Universal Air Conditioner

SVC MANUAL(Exploded View)

MODEL : LAN126HNP(ASNH121F2G1)	LAU126HNP(ASUH121FUG1)
LAN096HNP(ASNH091F2G1)	LAU096HNP(ASUH091FUG1)
LAN091CNP (ASNC091F2G0)	LAU091CNP (ASUC091FUG0)
LAN121CNP (ASNC121F2G0)	LAU121CNP (ASUC121FUG0)
LAN091HNP (ASNH091F2G0)	LAU091HNP (ASUH091FUG0)
LAN121HNP (ASNH121F2G0)	LAU121HNP (ASUH121FUG0)
LA090CPI (ASNC091F2G0)	LA090CPO (ASUC091FUG0)
LA120CPI (ASNC091F2G0)	LA120CPO (ASUC091FUG0)
LA090HPI (ASNH091F2G0)	LA090HPO (ASUH091FUG0)
LA120HPI (ASNH121F2G0)	LA120HPO (ASUH121FUG0)

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

Air Conditioner Service Manual
TABLE OF CONTENTS
Safety Precautions...........................................................................................................................................................	3
Dimensions.......................................................................................................................................................................	9
Symbols Used in this Manual .....................................................................................................................................	9
Indoor Unit ..................................................................................................................................................................	9
Outdoor Unit .............................................................................................................................................................	10
Product Specifications ..................................................................................................................................................	11
Installation ......................................................................................................................................................................	13
Installation Parts .......................................................................................................................................................	13
Installation Tools.......................................................................................................................................................	13
Installtion Map...........................................................................................................................................................	14
Confirm the Refrigerant ............................................................................................................................................	15
Select the best Locations..........................................................................................................................................	16
Piping Length and Elevation .....................................................................................................................................	17
Preparing Work for Installation .................................................................................................................................	18
Fixing Indoor Unit......................................................................................................................................................	19
Flaring work and connection of piping ........................................................................................................................	20
Flaring work ..............................................................................................................................................................	20
Connection of piping-Indoor......................................................................................................................................	21
Connection of the drain hose....................................................................................................................................	22
Connection of piping-Outdoor...................................................................................................................................	24
Connecting the cable between indoor unit and outdoor unit ....................................................................................	25
Connect the cable to the Indoor unit.........................................................................................................................	25
Connection method of the connecting cable(Example) ............................................................................................	26
Checking the drainage and forming the pipings.........................................................................................................	27
Checking the drainage..............................................................................................................................................	28
Forming the piping ....................................................................................................................................................	29
AIR PURGING .................................................................................................................................................................	30
Air purging ................................................................................................................................................................	30
Charging ...................................................................................................................................................................	32
Panel front assembly ................................................................................................................................................	33
Test running..............................................................................................................................................................	34
How to replace picture & photograph ..........................................................................................................................	36
Operation ........................................................................................................................................................................	37
Functions ..................................................................................................................................................................	37
The function of main control .....................................................................................................................................	38
Display Function ......................................................................................................................................................	44
Self-diagnosis Function ............................................................................................................................................	44
Remote Control Operations ......................................................................................................................................	45
Disassembly ...................................................................................................................................................................	46
Indoor Unit ................................................................................................................................................................	46
Schematic Diagram........................................................................................................................................................	48
Heat Pump/Cooling Only Series(Indoor Unit) ...........................................................................................................	48
Heat Pump Series (Outdoor Unit).............................................................................................................................	49
INDOOR UNIT P.W.B. ASSEMBLY .........................................................................................................................	50
OUTDOOR UNIT P.W.B. ASSEMBLY .....................................................................................................................	51
DISPLAY P.W.B. ASM..............................................................................................................................................	52
Wiring Diagram .........................................................................................................................................................	53
Troubleshooting Guide..................................................................................................................................................	55
Refrigeration Cycle Diagram.....................................................................................................................................	55
Pipe length and the elevation ...................................................................................................................................	56
3-way Valve ..............................................................................................................................................................	57
Cycle Parts ...............................................................................................................................................................	63
Electronic Parts.........................................................................................................................................................	64
Exploded View................................................................................................................................................................	73

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 2 -
Only for training and service purposes	LGE Internal Use Only

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.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

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

Be sure not to do.

Be sure to follow the instruction.

■ Installation

Do not use damaged power cords, plugs, or a loose socket.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.

• There is risk of fire or electric	• There is risk of fire or electric
shock.	shock.

Install the panel and the cover of	Do not modify or extend the
control box securely.	power cord.
• There is risk of fire or electric	• There is risk of fire or electric
shock.	shock.

Always use the power plug and socket with the ground terminal.

• There is risk of electric shock.

Do not install, remove, or reinstall the unit by yourself (customer).

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

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 3 -
Only for training and service purposes	LGE Internal Use Only

Safety Precautions

Be cautious when unpacking and installing the product.

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

Do not install the product on a defective installation stand.

•Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.

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

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

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.

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 furnishings.

■ Operation

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

•There is risk of fire or electrical shock.

Do not place anything on the power cord.

•There is risk of fire or electric shock.

Do not turn the air-conditioner ON or OFF by plugging or unplugging the power plug.

•There is risk of fire or electrical shock.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 4 -
Only for training and service purposes	LGE Internal Use Only

Safety Precautions

Use a dedicated outlet for this appliance.

•There is risk of fire or electrical shock.

Do not allow water to run into electric parts.

•It may cause There is risk of fire, failure of the product, or electric shock.

Grasp the plug to remove the	Do not place a heater or other
cord from the outlet. Do not	appliances near the power cable.
touch it with wet hands.
• There is risk of fire or electrical	• There is risk of fire and electric
shock.	shock.

Do not store or use flammable	Do not use the product in a
gas or combustibles near the air	tightly closed space for a long
conditioner.	time.
• There is risk of fire or failure of
product.	• Oxygen deficiency could occur.

Wax

Thinner

When flammable gas leaks, turn	Unplug the unit if strange
off the gas and open a window for	sounds, odors, or smoke comes
ventilation before turn the product	from it.
on. DO NOT use the telephone or
turn switches on or off.
• There is risk of explosion or fire.	• There is risk of electrical shock or
	fire

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

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

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 5 -
Only for training and service purposes	LGE Internal Use Only

Safety Precautions

Do not open the inlet grill 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.

Unplug the appliance before performing cleaning or maintenance.

• There is risk of electrical shock.

When the product is soaked	Ventilate the product from time
(flooded or submerged), contact	to time when operating it
an Authorized Service Center.	together with a stove, etc.
• There is risk of fire or eletric	• There is risk of fire or electrical
shock.	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.

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

•This could result in personal injury and product damage.

■ Installation

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

•Low refrigerant levels may cause failure of product.

Install the drain hose to ensure			Keep level even when installing
that water is drained away			the product.
properly.
• A bad connection may cause water			• To avoid vibration or water leakage.
leakage.

90˚

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 6 -
Only for training and service purposes	LGE Internal Use Only

Safety Precautions

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

Use two or more people to lift and transport the air conditioner.

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

• It may cause a problem for your	• Avoid personal injury.	• It may cause corrosion on the
neighbors.		product. Corrosion, particularly on
		the condenser and evaporator fins,
		could cause product malfunction or
		inefficient operation.

■ Operation

Do not direct airflow at room occupants. (Don't sit in the draft.)

• This could damage your health.

Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.

•There is risk of fire, electric shock, or damage to the plastic parts of the product.

Do not use the product for special	Do not block the inlet or outlet of
purposes, such as preserving	air flow.
foods, works of art, etc. It is a
consumer air conditioner, not a
precision refrigeration system.
• There is risk of damage or loss of	• It may cause product failure.
property.

Do not touch the metal parts of	Do not step on or put anyting on
the product when removing the	the product. (outdoor units)
air filter. They are very sharp!
• There is risk of personal injury.	• There is risk of personal injury and
	failure of product.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 7 -
Only for training and service purposes	LGE Internal Use Only

Safety Precautions

Always insert the filter securely. Clean the filter every two weeks or more often if necessary.

•A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

Do not insert hands or other	Do not drink the water drained
objects through the air inlet or	from the unit.
outlet while the air conditioner is
plugged in.
• There are sharp and moving parts	• It is not sanitary and could cause
that could cause personal injury.	serious health issues.

Use a firm stool or ladder when cleaning or maintaining the air conditioner.

• Be careful and avoid personal injury.

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 explosion

■ Disuse

Do not recharge or disassemble the batteries. Do not dispose of 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.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 8 -
Only for training and service purposes	LGE Internal Use Only

Dimensions

Dimensions

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 air conditioner.

NOTICE This symbol indicates special notes.

Indoor Unit

Hanger Hole

W	D
	H

			Pipe Hole				Fix Hole

	Model	INDOOR UNIT
Dimension
W	mm(inch)	600(23.6)
H	mm(inch)	600(23.6)
D	mm(inch)	146(5.7)

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 9 -
Only for training and service purposes	LGE Internal Use Only

Dimensions

Outdoor Unit

	W	L2
L1	D
	L3

H

L4

L5

Gas side (3-way valve)

Liquid side (2-way valve)

		MODEL	9k, 12k Models
	DIM	unit
	W	mm	770(30.3)
	H	mm	540(21.3)
	D	mm	245(9.6)
	L1	mm	285(11.2)
	L2	mm	64(2.5)
	L3	mm	518(20.4)
	L4	mm	10(0.4)
	L5	mm	100(3.9)

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 10 -
Only for training and service purposes	LGE Internal Use Only

Product Specifications

Product Specifications

		Models						AS-C091F2G0(LA091CNP)	AS-C121F2G0(LA121CNP)	AS-H091F2G0(LA091HNP)	AS-H121F2G0(LA121HNP)
								AS-C091F2G0(LA090CP)	AS-C121F2G0(LA120CP)	AS-H091F2G0(LA090HP)	AS-H121F2G0(LA120HP)
	Cooling Capacity						kW	2.87	3.37	2.87	3.37
	(Min~Rating~Max)						Btu/h	9,800	11,500	9,800	11,500
	Heating Capacity						kW	-	-	2.87	3.37
	(Min~Rating~Max)						Btu/h	-	-	9,800	11,500
	Power Input	Cooling/Heating					W	980	1,100	980/980	1,100/1,100
	Running Current	Cooling/Heating					A	9.4	10	9.4/9.4	10/10
	Starting Current	Cooling/Heating					A	57.0	57.0	57.0/57.0	57.0/57.0
	EER						W/W	2.93	3.06	2.93	3.06
							Btu/h.W	10.0	10.5	10.0	10.5
	COP						W/W	-	-	2.93	3.06
	Power Supply						Ø / V / Hz	1/115/60	1/115/60	1/115/60	1/115/60
	Power Factor					%		90.7	95.7	90.7	95.7
	Air Flow Rate	Indoor,Max				m3/min(cfm)		9.3(330)	9.3(330)	9.3(330)	9.3(330)
		Outdoor,Max				m3/min(cfm)		25(883)	25(883)	25(883)	25(883)
	Moisture Removal						l/h	1.4	1.4	1.4	1.4
	Sound Level	Indoor,H/M/L					dB(A)+3	41/35/29	41/35/29	41/35/29	41/35/29
		Outdoor,Max					dB(A)+3	48	48	48	48
	Refrigerant & Charge(at	7.5m)					g(oz)	R410A, 900(31.8)	R410A, 900(31.8)	R410A, 900(31.8)	R410A, 900(31.8)
		Type						Rotary	Rotary	Rotary	Rotary
	Compressor	Model						GK113CAA	GK113CAA	GK113CAA	GK113CAA
		Motor Type						PSC	PSC	PSC	PSC
		Oil Type						FVC68D(PVE)	FVC68D(PVE)	FVC68D(PVE)	FVC68D(PVE)
		Oil Charge					cc	330	330	330	330
		O.L.P Name						MRA12053-12027	MRA12053-12027	MRA12053-12027	MRA12053-12027
	Fan(Indoor)	Type						Turbo Fan	Turbo Fan	Turbo Fan	Turbo Fan
		Motor Output					W	24	24	24	24
	Fan(outdoor)	Type						Propeller	Propeller	Propeller	Propeller
		Motor Type						AC Induction	AC Induction	AC Induction	AC Induction
		Motor Output					W	27	27	27	27
	Circuit Breaker*						A	20	20	20	20
	Power Supply Cable						No.*mm2	3*2.5	3*2.5	3*2.5	3*2.5
	Power and Transmission Cable					No.*mm2+No.mm2		4*0.75	4*0.75	4*0.75	4*0.75
	Piping	Liquid Side					mm(in)	6.35(1/4)	6.35(1/4)	6.35(1/4)	6.35(1/4)
	Connections	Gas Side					mm(in)	12.7(1/2)	12.7(1/2)	12.7(1/2)	12.7(1/2)
	Drain Hose	O.D , I.D					mm(in)	21.5,16(0.85,0.63)	21.5,16(0.85,0.63)	21.5,16(0.85,0.63)	21.5,16(0.85,0.63)
		Indoor(W*H*D)					mm	600*600*146	600*600*146	600*600*146	600*600*146
	Dimension						inch	23.62*23.62*5.75	23.62*23.62*5.75	23.62*23.62*5.75	23.62*23.62*5.75
		Outdoor(W*H*D)					mm	770*540*245	770*540*245	770*540*245	770*540*245
							inch	30.31*21.26*9.65	30.31*21.26*9.65	30.31*21.26*9.65	30.31*21.26*9.65
	Net Weight	Indoor					kg(lbs)	15(33.1)	15(33.1)	15(33.1)	15(33.1)
		Outdoor					kg(lbs)	32(70.5)	32(70.5)	32(70.5)	32(70.5)
	Tool Code(Chassis)	Indoor + Outdoor						SF + UL	SF + UL	SF + UL	SF + UL
	Functions	Temperature Control						Thermistor	Thermistor	Thermistor	Thermistor
		Plasma Filter						O	O	O	O
		Prefilter(washable/anti-fungus)						O	O	O	O
		Auto Clean						O	O	O	O
		CHAOS Wind(Auto Wind)						O	O	O	O
		Steps, Fan/Cool/Heat						3/4	3/4	3/4/3	3/4/3
		Airflow Direction Control(up&down)						Auto	Auto	Auto	Auto
		Airflow Direction Control(left&right)						Auto	Auto	Auto	Auto
		Remocon Type						Wireless LCD	Wireless LCD	Wireless LCD	Wireless LCD
		Setting Temperature					Cooling	18 ~ 30	18 ~ 30	18 ~ 30	18 ~ 30
		Range					Heating	-	-	16 ~ 30	16 ~ 30
		Auto Operation (Micom Control)						O	O	O	O
		Auto Changeover (Micom Control)						O	O	O	O
		Self Diagnosis						O	O	O	O
		Timer						24h, On/Off	24h, On/Off	24h, On/Off	24h, On/Off
		Sleep Operation						O	O	O	O
		Soft Dry Operation						O	O	O	O
		Restart Delay(minute)						3	3	3	3
		Deice Control(Defrost)						-	-	O	O
		Hot Start						-	-	O	O
		Jet Cool						O	O	O	O
		Low Ambient Operation						-	-	-	-
		Special Function						-	-	-	-
	Network Functions	Dry Contact						-	-	-	-
		Network Solution(LGAP)						-	-	-	-
		PI485						-	-	-	-

Note:

O : Applied, - : No relation

* For circuit breaker rating, please conform to local standards wherever necessary.

Some of functions are slightly different depending upon models.

The specification may be subject to change without notic for purpose of improvement.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 11 -
Only for training and service purposes	LGE Internal Use Only

Product Specifications

		Models						AS-H091F2G1	AS-H121F2G1
								(LA096HNP)	(LA126HNP)
	Cooling Capacity						kW	2.9	3.37
	(Min~Rating~Max)						Btu/h	9,900	11,500
	Heating Capacity						kW	2.9	3.22
	(Min~Rating~Max)						Btu/h	9,900	11,000
	Power Input	Cooling/Heating					W	1,100/1,070	1,150/1,100
	Running Current	Cooling/Heating					A	9.4/9.4	10-10
	Starting Current	Cooling/Heating					A	57.0/57.0	57.0/57.0
	EER						W/W	2.63	2.93
							Btu/h.W	9	10
	COP						W/W	2.71	2.93
	Power Supply						Ø / V / Hz	1/115/60	1/115/60
	Power Factor					%		90.7	95.7
	Air Flow Rate	Indoor,Max				m3/min(cfm)		9.3(330)	9.3(330)
		Outdoor,Max				m3/min(cfm)		25(883)	25(883)
	Moisture Removal						l/h	1.4	1.4
	Sound Level	Indoor,H/M/L					dB(A)+3	43/35/29	43/35/29
		Outdoor,Max					dB(A)+3	48	48
	Refrigerant & Charge(at	7.5m)					g(oz)	R410A, 900(31.8)	R410A, 900(31.8)
		Type						Rotary	Rotary
	Compressor	Model						GK113CAA	GK113CAA
		Motor Type						PSC	PSC
		Oil Type						FVC68D(PVE)	FVC68D(PVE)
		Oil Charge					cc	330	330
		O.L.P Name						MRA12053-12027	MRA12053-12027
	Fan(Indoor)	Type						Turbo Fan	Turbo Fan
		Motor Output					W	24	24
	Fan(outdoor)	Type						Propeller	Propeller
		Motor Type						AC Induction	AC Induction
		Motor Output					W	27	27
	Circuit Breaker*						A	20	20
	Power Supply Cable						No.*mm2	3*2.5	3*2.5
	Power and Transmission Cable					No.*mm2+No.mm2		4*0.75	4*0.75
	Piping	Liquid Side					mm(in)	6.35(1/4)	6.35(1/4)
	Connections	Gas Side					mm(in)	12.7(1/2)	12.7(1/2)
	Drain Hose	O.D , I.D					mm(in)	21.5,16(0.85,0.63)	21.5,16(0.85,0.63)
		Indoor(W*H*D)					mm	600*600*146	600*600*146
	Dimension						inch	23.62*23.62*5.75	23.62*23.62*5.75
		Outdoor(W*H*D)					mm	770*540*245	770*540*245
							inch	30.31*21.26*9.65	30.31*21.26*9.65
	Net Weight	Indoor					kg(lbs)	15(33.1)	15(33.1)
		Outdoor					kg(lbs)	32(70.5)	32(70.5)
	Tool Code(Chassis)	Indoor + Outdoor						SF + UL	SF + UL
	Functions	Temperature Control						Thermistor	Thermistor
		Plasma Filter						O	O
		Prefilter(washable/anti-fungus)						O	O
		Auto Clean						O	O
		CHAOS Wind(Auto Wind)						O	O
		Steps, Fan/Cool/Heat						2003-04-03	2003-04-03
		Airflow Direction Control(up&down)						Auto	Auto
		Airflow Direction Control(left&right)						Auto	Auto
		Remocon Type						Wireless LCD	Wireless LCD
		Setting Temperature					Cooling	18 ~ 30	18 ~ 30
		Range					Heating	16 ~ 30	16 ~ 30
		Auto Operation (Micom Control)						O	O
		Auto Changeover (Micom Control)						O	O
		Self Diagnosis						O	O
		Timer						24h, On/Off	24h, On/Off
		Sleep Operation						O	O
		Soft Dry Operation						O	O
		Restart Delay(minute)						3	3
		Deice Control(Defrost)						O	O
		Hot Start						O	O
		Jet Cool						O	O
		Low Ambient Operation						-	-
		Special Function						-	-
	Network Functions	Dry Contact						-	-
		Network Solution(LGAP)						-	-
		PI485						-	-

Note:

O : Applied, - : No relation

* For circuit breaker rating, please conform to local standards wherever necessary.

Some of functions are slightly different depending upon models.

The specification may be subject to change without notic for purpose of improvement.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 12 -
Only for training and service purposes	LGE Internal Use Only

Installation

Installation

Read carefully, and then follow step by step.

Installation Parts

Installation guide map									Type "A" screw and plastic anchor

Type "B" screw

Remote control holder

Installation Tools

Figure	Name	Figure	Name
	Screw driver		Ohmmeter

Electric drill

Hexagonal wrench

Measuring tape, Knife

Ammeter

Hole core drill

Leak detector

	Spanner	Thermometer,
		Horizontal meter

Torque wrench

Flaring tool set

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 13 -
Only for training and service purposes	LGE Internal Use Only

Installation

Installation Map

NOTICE Installation parts you should purchase.

More than 73.9"(20cm)1

More than
19.6"(50cm)
(Left and right	Sleeve
are identical)
	Bushing-Sleeve
	Putty(Gum Type Sealer)

Bend the pipe as close as possible on the wall but be careful so that it may not break.

More than 11.8"(30cm)

More than 28"(70cm)

Saddle

More than 23.6"(60cm) More than

11.8"(30cm )

Vinyl tape (Wide)

•To carry out the drainage test, remove the air filter

and pour water into the heat exchanger.

•Apply after carrying out a drainage test.

Gas side piping (Optional part)

Liquid side piping (Optional part)

Additional drain pipe

Vinyl tape (Narrow)

Connecting cable (Optional part)

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 14 -
Only for training and service purposes	LGE Internal Use Only

Installation

Confirm The Refrigerant

1.Check the quality label on the indoor and outdoor unit.

2.Make certain that the refrigerant is R-410A.

NOTICE

THIS PRODUCT CONTAINS R-410A REFRIGERANT

1)Different compressor oil

-R-410A(Polyol ester) / R-22(Mineral).

-Do not mix the existing mineral oil.

-Do not apply used pipe, tools and gauges covered with the existing mineral oil.

2)Absorption of moisture

-Compressorʼs oil has the high absorption rate of moisture.

3)Composition

-R-410A(R32:R125=50:50wt%).

NOTE: Never mix with other refrigerants

Example : Split type 12,000 Btu/h
Capacity 120
[%]	100
100		93	89
				84
80					76
60
40
20
0
R-410A	100%	70%	50%	30%	0%
R-22	0%	30%	50%	70%	100%

4)High pressure.

-1.6 times higher than R-22.

-High Pressure refrigerant may cause personal injury.

	Boiling Pt.(°C)	Vapor pressure(25°C)(kg f/cnf)	Vapor density(25°C)(kg/m2)
R-410A	-51.4	15.9	64
R-22	-40.8	9.6	44.4

Do not handle the pipe by yourself (customer) High-pressure refrigerant may cause personal injury. - manifold gauge ,charging and any piping tools must be dedicated to R-410A systems.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 15 -
Only for training and service purposes	LGE Internal Use Only

Installation

Select the best Location

Indoor unit

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

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

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

4.Do not install near a doorway.

5.Ensure that the interval between a wall and the left (or right) of the unit is more than 19.6"(50cm). The unit should be installed as high as possible on the wall, allowing a minimum of 7.9"(20cm) from ceiling.

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

More than	More than
	.9"(20cm)
19.6"(50cm)

More than More than 19.6"(50cm) 4.9ft(1.5m)

CAUTION: Install the indoor unit on the wall where the height from the floor is more than 4.9 feets(1.5 meters).

Outdoor unit

1.If 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.

2.Ensure that the space around the back and sides is more than 11.8"(30cm). The front of the unit should have more than 28"(70cm) of space.

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

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

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

Rooftop Installations

More than 23.6"(60cm)

More than More than 11.8"(30cm) 11.8"(30cm)

	More than	More than
	28"(70cm)
		23.6"(60cm)

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.

If the outdoor unit is installed on roof structures or walls, this may result in excessive noise and vibration, and may be also classed as non serviceable installation.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 16 -
Only for training and service purposes	LGE Internal Use Only

Installation

Piping Length and Elevation

Capacity	Pipe Size		Standard	Max.	Max.
(Btu/h)	Suction	Evap	Length m(ft)	Elevation m(ft)	length m(ft)
9k, 12k	Ø12.7mm(1/2")	Ø6.35mm(1/4")	7.5(25)	7.5(25)	15(49)
	Indoor unit			Outdoor unit
		A		A	Oil trap
	B	Outdoor unit	Indoor unit	B	Indoor unit

Additional

Refrigerant

g/m(oz/ft)

20(0.22)

Outdoor unit

A

B

If piping length is more than 16.4ft(5m)

CAUTION: Capacity is based on standard length and maximum allowance length is on the basis of reliability.

Oil trap should be installed every 16.4~23feets (5~7 meters).

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 17 -
Only for training and service purposes	LGE Internal Use Only

Installation

Preparing Work for Installation

Open panel front

1.Pull the upper part of the front panel.

2.Lift up the panel.

3.To detach the front panel, remove the two screws at the lower part.

4.Detach the front panel from the body.

5.To detach the panel, disconnect the connector at the upper part.

Panel Front

Connector

Cover pipe and cover side remove

1.Please remove the screw of the center tuning cover.

2.Pull up the side cover of desired connecting direction, then cover side is separated.

3.Pick the pipe hole of the side cover.

CAUTION: After removing the pipe hole, cut the burr for safety.

NOTICE When making pipe path through rear wall, you donʼt need to pick the pipe hole.

Drain hose junction

1.Remove the rubber stopple in the desired drain direction.

2.Insert drain hose into the handle of drain pan, and join drain hose and connecting hose according to the figure by.

Pipe hole

Side cover

	Adhesive	Only the
		desired direction
	Connecting
	part
	Drain	rubber cap
	hose

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 18 -
Only for training and service purposes	LGE Internal Use Only

INSTALLATION

INSTAIIA TION

Installation

Fixing Indoor Unit

1.Attach an Installation guide map on the desired surface.

INSTALLATION GUIDE MAP

2.Look at suited horizon by horizontal meter on the horizontal setting line, and fix lightly the map by adhesive tape.

		NSTAL
		I
	Horizontality	LA
		TION G
		UI
		DE M
		AP

3. Make a hole with a diameter of 6mm and depth of 30-35mm by piercing a screw point.

GUIDE M

AP

5. Drive the fore plastic anchors into drilled points.

GUIDE

MAP

Plastic anchors

7.Hang the hole of product at the upper screws, and remove the map. (Falling

attention) INSTALLATION G

UIDE MAP

Hanger hole (Rear side of the product)

4.Drill the pierted part as a diameter of 50mm for connecting piping. (In case of piercing

rear surface)

6.First, Drive the two points of the upper parts by screws. (Leave 10mm for hanging the product)

10mm	INSTALLATION
		GU

8.Drive the lower parts after facing the hole of product with plastic anchors, and fix completely the upper screws.

Plastic anchors

9. Check the fixed product with light power.	10. In case of nothing wrong, connect the
	pipe and the wire. (Refer to installation
	manual)

Drill a Hole in the Wall

•Drill the piping hole with a ø50mm hole core drill. Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.

	WALL
Indoor	Outdoor

5-7mm

(0.2~0.3")

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 19 -
Only for training and service purposes	LGE Internal Use Only

Flaring work and connection of piping

Flaring work and connection of piping

Flaring Work

Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure.

Cutting the pipes and the cable.

1.Use the piping kit accessory or the pipes purchased locally.

2.Measure the distance between the indoor and the outdoor unit.

3.Cut the pipes a little longer than measured distance.

4.Cut the cable 4.9ft(1.5m) longer than the pipe length.

Removing burrs

1.Completely remove all burrs from the cut cross section of pipe/tube.

2.Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

Putting nut on

•Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal.

(not possible to put them on after flaring work)

Flaring work

1.Firmly hold copper pipe in a die in the dimension shown in the table below.

2.Carry out flaring work with the flaring tool.

Outside diameter		A
mm	inch	mm
Ø6.35	1/4	1.1~1.3
Ø9.52	3/8	1.5~1.7
Ø12.7	1/2	1.6~1.8
Ø15.88	5/8	1.6~1.8
Ø19.05	3/4	1.9~2.1

Copper		Slanted Uneven Rough
pipe	90°

Pipe

Reamer

Point down

Flare nut

Copper tube

		"A"	Handle
	Bar		Bar
			Yoke
			Cone

Copper pipe

Clamp handle

Red arrow mark

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 20 -
Only for training and service purposes	LGE Internal Use Only

Flaring work and connection of piping

Check

1.Compare the flared work with the figure by.

2.If a flared section is defective, cut it off and do flaring work again.

Smooth all round

Inside is shiny without scratches

= Improper flaring =

Inclined Surface Cracked Uneven

damaged thickness Even length

all round

Connecting the Piping

Indoor

Preparing the indoor unit's piping and drain hose for installation through the wall.

1. Route the indoor tubing and the drain hose in the direction of rear left or right

Drain hose

2. Tape the tubing, drain hose and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause drain pan to overflow inside the unit.

Loop

Gas side piping

Connecting

cable

Liquid side piping

Drain hose

CAUTION: If the drain hose is routed inside the room, insulate the hose with an insulation material* so that dripping from "sweating"(condensation) will not damage furniture or floors.

*Foamed polyethylene or equivalent is recommended.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 21 -
Only for training and service purposes	LGE Internal Use Only

Flaring work and connection of piping

Connecting the piping with the indoor unit and drain hose with drain pipe

1.Align the center of the pipings and sufficiently tighten the flare nut by hand.

2.Tighten the flare nut with a wrench.

Outside diameter		Torque
mm	inch	kgf.cm
Ø6.35	1/4	180~250
Ø9.52	3/8	340~420
Ø12.7	1/2	550~660

Indoor unit tubing					Flare nut Pipings

	Spanner (fixed)
	Flare nut
Torque wrench	Connection pipe
Indoor unit tubing

3. When extending the drain hose at the indoor unit, install the drain pipe.

Drain pipe

Adhesive

Indoor unit drain hose

Vinyl tape(narrow)

Wrap the insulation material around the connecting portion.

1.Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there may be no gap.

2.Wrap the area which accommodates the rear piping housing section with vinyl tape.

3.Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing section.

Plastic bands	Insulation material

	Connection	Indoor
		unit pipe
	pipe
	Vinyl tape	Wrap with vinyl tape
	(wide)

Wrap with vinyl tape

Pipe

Vinyl tape(wide)

Drain hose

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 22 -
Only for training and service purposes	LGE Internal Use Only

Flaring work and connection of piping

CAUTION: Installation Information

For right piping. Follow the instruction below.

Good case

• Press on the upper side of clamp and unfold the tubing to downward slowly.

Bad case

• Following bending type from left to right may cause damage to the turbing.

Copyright ©2010 LG Electronics. Inc. All right reserved.	- 23 -
Only for training and service purposes	LGE Internal Use Only