LG LK-C2408C02 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 : SINGLE PACKAGE
www.lg.com
P/NO : MFL66101602
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TIPS FOR SAVING ENERGY |
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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 PRECAUTIONS 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 MUST conform with local building codes or, in the absence of local codes, with the Nation Electrical Code NFPA 70/ANSI C1-1003 or current edition and Canadian Electrical Code Part1 CSA C.22.1.
•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 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.
•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.
-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.
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SAFETY PRECAUTIONS |
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and personal injury. |
• 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,
• 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.
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.
•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 plug or unplug the power supply plug during operation.
-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 There is risk of fire, 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, or small or smoke comes from product. Turn the 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 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.
•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, disconnect the power supply plug or turn off the breaker.
-There is risk of product damage or failure, or unintended operation.
SAFETY PRECAUTIONS 5
•Take care to ensure that nobody could step on or fall onto the unit. - This could result in personal injury and product damage.
!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.
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.
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TABLE OF CONTENTS |
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TABLE OF CONTENTS
2TIPS FOR SAVING ENERGY
3IMPORTANT SAFETY INSTRUCTIONS
7INTRODUCTION
7Features
8DIMENSIONAL DATA
11 INSTALLATION OF UNIT
11 Inspection
11Location and Recommendations
12Ductwork
12Change Airflow
13Refrigerant piping on three principles
14Nitrogen substitution method
15Condensate Drain Piping
15 Filter Installationv
15 Installation of Remote Controller
19Electronic Wiring
20Connect the cable to the Product
22Start-Up Pre-Start Quick Check List
23Dip Switch Setting in Indoor Main PCB
23Group Control
24Evaporator Fan Adjustment
25Trial Run Mode
26Self-Diagnosis Function
27Starting the Unit
28Final Installation Checklist and Maintenance
30 Installation guide at the seaside
INTRODUCTION
Features
Front View
Control access panel
Rear View
Refresh air 
hood 
INTRODUCTION 7
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Return
Supply
Air outlet vents
Air intake vents
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8 DIMENSIONAL DATA
DIMENSIONAL DATA
Single packaged cooling unit 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 22 as shipped.
Unit Dimensions(Figure 1A)
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[Unit : Inch(mm)] |
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UNITS |
6.25RT |
7.5RT |
A |
41 15/16(1065) |
42 19/32(1082) |
B |
43 11/16(1109) |
43 11/16(1109) |
C |
50 13/32(1280) |
64 3/16(1630) |
D |
29 1/2(749) |
42 17/32(1080) |
E |
9 21/32(245) |
7 5/16(185) |
F |
2 3/8(60) |
2 3/8(60) |
G |
2 3/4(70) |
2 15/16(70) |
Horizontal Application Unit (Figure 1B)
Rear view showing duct opening for horizontal air flow.
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CLEARANCE 18" |
CLEARANCE 36" |
(HORIZONTAL) |
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CLEARANCE 32" |
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(DOWN FLOW) |
CLEARANCE 34"
F |
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E |
A |
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Center line of hole |
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G |
1" Dia. hole control wires |
D |
B |
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1 1/2" Dia. hole power wires |
C |
1 1/2" Dia. hole other purpose |
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CLEARANCE 48" |
Figure 1A |
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[Unit : Inch(mm)] |
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UNITS |
6.25RT |
7.5RT |
A |
15 1/2(394) |
14 13/16(377) |
B |
8 7/16(214) |
9 4/16(235) |
C |
10 15/16(278) |
10 15/16(278) |
D |
2 7/8(73) |
2 7/16(62) |
E |
4 13/16(122) |
9 6/16(136) |
F |
24 1/4(616) |
22 9/16(700) |
G |
13 5/32(334) |
18 5/16(465) |
H |
8 (203) |
4 11/32(110) |
G |
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B |
C |
D |
Figure 1B
Down Flow Application Unit (Figure 1C)
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[Unit : Inch(mm)] |
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UNITS |
7.5RT |
A |
27 9/16(700) |
B |
18 5/16(465) |
1" Condensate Location
24 1/4(616) |
A |
3 29/32(99) |
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B |
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3 29/32(99) |
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Top view
Figure 1C
DIMENSIONAL DATA 9
UNIT Dimensions (Figure 1D)
[Unit : Inch(mm)]
UNITS 8.5/10/12.5RT |
15/17.5RT |
20/25RT |
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A |
48 5/16 (1227) |
49 31/32 (1244) |
49 7/32 (1250) |
B |
54 13/16 (1392) |
60 5/8 (1540) |
86 5/8 (2200) |
C |
85 7/16 (2170) |
87 13/16 (2230) 114 3/12 (2898) |
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D |
7 3/32 (180) |
7 3/32 (180) |
7 3/32 (180) |
E |
40 11/32 (1025) |
44 1/4 (1124) |
48 13/32 (1230) |
F |
- |
- |
3 5/32 (80) |
G |
- |
- |
3 5/32 (80) |
H |
3 15/16 (100) |
3 15/16 (100) |
- |
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CLEARANCE 34" |
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CLEARANCE 16" |
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D |
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G |
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A |
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H |
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C F |
B |
CLEARANCE 34" |
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CLEARANCE 46" |
E |
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Figure 1D |
HORIZONTAL FLOW APPLICATION
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CLEARANCE 34"
CLEARANCE 16"
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F |
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E |
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D |
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C |
CLEARANCE 46" |
H |
B |
CLEARANCE 34" |
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A |
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G |
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Figure 1E |
DOWN FLOW APPLICATION (Figure 1F)
[Unit : Inch(mm)]
UNITS |
8.5/10/12.5RT |
15/17.5RT |
20/25RT |
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A |
15 11/32 |
(390) |
17 29/32 |
(455) |
23 5/8 (600) |
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B |
12 9/16 (319) |
14 11/32 |
(364) |
15 5/8 |
(396) |
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C |
18 1/2 (470) |
18 3/4 (476) |
34 5/8 |
(880) |
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D |
6 5/16 (160) |
6 31/32 (177) |
6 11/16 (170) |
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E |
2 11/16 |
(68) |
3 27/32 |
(98) |
6 4/8 |
(165) |
F |
35 7/16 (900) |
37 13/32 |
(950) |
39 3/8 |
(1000) |
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G |
2 11/16 |
(68) |
3 27/32 |
(98) |
6 11/16 (170) |
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H |
30 3/4 (781) |
31 1/2 (800) |
25 19/23 (650) |
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(Figure 1E) |
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A |
B |
C |
D |
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[Unit : Inch(mm)] |
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SUPPLY |
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UNITS 8.5/10/12.5RT |
15/17.5RT |
20/25RT |
RETURN |
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A |
18 7/16 (468) |
18 3/4 (476) |
34 5/8 (880) |
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B |
11 31/32 |
(304) |
14 13/32 |
(366) |
17 5/8 (448) |
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C |
16 10/16 |
(422) |
17 29/32 |
(455) |
23 5/8 (600) |
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D |
1 15/32 |
(37) |
2 11/16 |
(68) |
3 31/32 (101) |
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E |
3 15/16 (100) |
5 23/32 (145) |
7 5/32 (182) |
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F |
36 21/32 |
(931) |
37 13/32 |
(950) |
39 3/8 (1000) |
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G |
4 1/32 (102) |
5 1/8 (130) |
5 13/32 (137.5) |
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H |
30 5/8 (778) |
31 1/2 (800) |
25 19/32 (650) |
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TOP VIEW
Figure 1F
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10 DIMENSIONAL DATA
UNIT Dimensions (Figure 1G) |
Horizontal FLOW APPLICATION |
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(Figure 1H) |
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[Unit : Inch(mm)] |
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UNITS |
30RT |
A |
67 11/16 (1720) |
B |
86 10/16 (2200) |
C |
105 13/16 (2688) |
D |
42 13/16 (1087) |
E |
26 12/16 (680) |
F |
31 8/16 (800) |
G |
36 4/16 (920) |
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[Unit : Inch(mm)] |
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UNITS |
30RT |
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A |
49 17/16 (1255) |
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B |
7 9/16 |
(192) |
C |
22 1/16 (561) |
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D |
4 6/16 |
(111) |
E |
34 13/16 (885) |
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F |
12/16 (19) |
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G |
3 2/16 (80) |
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H |
4 8/16 |
(115) |
I |
77 7/16 |
(1967) |
CLEARANCE 34" |
CLEARANCE 16" |
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B |
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A |
B |
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C |
RETURN |
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CLEARANCE 34" |
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CLEARANCE 46" |
D |
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H |
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Figure 1G |
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Figure 1H
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