LG ABNQ18GHLA0 User manual

P/NO : MFL61971227 www.lg.com
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 : Ceiling Concealed Duct
ENGLISH ESPAÑOL
PORTUGUESE

• 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 condi-
tioner 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 :
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:
TIPS FOR SAVING ENERGY
ENGLISH
TIPS FOR SAVING ENERGY
2

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 mal-
function, property damage, personal injury and/or death.
Installation
• Always perform grounding. - Otherwise, it may cause electrical shock.
• Don’t use a power cord, a plug or a loose socket which is damaged. - Otherwise, it may cause a fire
or electrical shock.
• For installation of the product, always contact the service center or a professional installation
agency. - Otherwise, it may cause a fire, electrical shock, explosion or injury.
• Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit.
- If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not at-
tached securely, it could result in a fire or electric shock due to dust, water, etc.
• Always install an air leakage breaker and a dedicated switching board. - No installation may cause a
fire and electrical shock.
• Do not keep or use flammable gases or combustibles near the air conditioner. - Otherwise, it may
cause a fire or the failure of product.
• Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time.
- It may cause injury or an accident.
• Do not disassemble or repair the product randomly. - It will cause a fire or electrical shock.
• Do not install the product at a place that there is concern of falling down. - Otherwise, it may result
in personal injury.
• Use caution when unpacking and installing. - Sharp edges may cause injury.
Operation
• Do not share the outlet with other appliances. - It will cause an electric shock or a fire due to heat
generation.
• Do not use the damaged power cord. - Otherwise, it may cause a fire or electrical shock.
!
!
!
ENGLISH
SAFETY PRECAUTIONS

• Do not modify or extend the power cord randomly. - Otherwise, it may cause a fire or electrical
shock.
• Take care so that the power cord may not be pulled during operation. - Otherwise, it may cause a
fire or electrical shock.
• Unplug the unit if strange sounds, smell, or smoke comes from it. - Otherwise, it may cause electri-
cal shock or a fire.
• Keep the flames away. - Otherwise, it may cause a fire.
• Take the power plug out if necessary, holding the head of the plug and do not touch it with wet
hands. - Otherwise, it may cause a fire or electrical shock.
• Do not use the power cord near the heating tools. - Otherwise, it may cause a fire and electrical
shock.
• Do not open the suction inlet of the indoor/outdoor unit during operation. - Otherwise, it may electri-
cal shock and failure.
• Do not allow water to run into electrical parts. - Otherwise, it may cause the failure of machine or
electrical shock.
• Hold the plug by the head when taking it out. - It may cause electric shock and damage.
• Never touch the metal parts of the unit when removing the filter. - They are sharp and may cause in-
jury.
• Do not step on the indoor/outdoor unit and do not put anything on it. - It may cause an injury through
dropping of the unit or falling down.
• Do not place a heavy object on the power cord. - Otherwise, it may cause a fire or electrical shock.
• When the product is submerged into water, always contact the service center. - Otherwise, it may
cause a fire or electrical shock.
• Take care so that children may not step on the outdoor unit. - Otherwise, children may be seriously
injured due to falling down.
CAUTION
Installation
• Install the drain hose to ensure that drain can be securely done. - Otherwise, it may cause water
leakage.
• Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to
the neighbors. - Otherwise, it may cause dispute with the neighbors.
• Always inspect gas leakage after the installation and repair of product. - Otherwise, it may cause the
failure of product.
• Keep level parallel in installing the product. - Otherwise, it may cause vibration or water leakage.
Operation
• Avoid excessive cooling and perform ventilation sometimes. - Otherwise, it may do harm to your
health.
• Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent. - The appearance of the air
conditioner may deteriorate, change color, or develop surface flaws.
• Do not use an appliance for special purposes such as preserving animals vegetables, precision ma-
chine, or art articles. - Otherwise, it may damage your properties.
• Do not place obstacles around the flow inlet or outlet. - Otherwise, it may cause the failure of appli-
ance or an accident.
!
ENGLISH
SAFETY PRECAUTIONS
4

ENGLISH
5
2TIPS FOR SAVING EN-
ERGY
3IMPORTANT SAFETY IN-
STRUCTIONS
6INTRODUCTION
6Features
7INSTALLATION OF IN-
DOOR
7Ceiling dimension and hanging bolt lo-
cation
7Selection of the best location
10 Drain test
10 Indoor Unit Drain Piping
11 Heat insulation
12 REMOTE CONTROLLER
INSTALLATION
13 Group Control
15 Installer Setting -Test Run Mode
15 OPTIONAL OPERATION
16 Installer Setting - Setting Address of
Central Control
17 Installer Setting -Thermistor
18 Installer Setting-Remote Controller
Master/Slave Setup
19 Installer Setting-Celsius / Fahrenheit
Switching
20 Installer Setting -E.S.P.
22 DIP SWITCH SETTING
22 SELF-DIAGNOSIS FUNC-
TION
TABLE OF CONTENTS
TABLE OF CONTENTS

6
ENGLISH
INTRODUCTION
Features
INTRODUCTION
Remote
Controller
Air intake
vents
Air outlet
vents

ENGLISH
7
INSTALLATION OF INDOOR
Selection of the best location
Install the air conditioner in the location that
satisfies the following conditions.
- The place shall easily bear a load exceeding
four times the indoor unit’s weight.
- The place shall be able to inspect the unit as
the figure.
- The place where the unit shall be leveled.
- The place shall easily connect with the out-
door unit.
- The place where the unit is not affected by
an electrical noise.
- The place where air circulation in the room
will be good .
- There should not be any heat source or
steam near the unit
Ceiling dimension and hanging
bolt location
Install the unit above the ceiling correctly.
Position of suspension Bolt
- Apply a joint-canvas between the unit and
duct to absorb unnecessary vibration.
- Apply a filter Accessory at air return hole.
CASE 1
Confirm the positional relationship between
the unit and suspension bolts.
- Installation the ceiling opening to clean the
filter or service under the product.
INSTALLATION OF INDOOR
Top view
Unit: mm(inch)
Front view
Unit: mm(inch)
Front
Inspection hole
600(23-5/8)X600(23-5/8)
Control box
1000(39)
20(25/32) or more
600
(23-5/8)
600
(23-5/8)
Drainage hole
A
B
CD
(G)
EF
body
filter
Joint canvas
Main duct
H
I J
A B C D E F (G) H I J
18/21 kBtu/h 932 882 355 46 450 30 87 750 163 260
24/36 kBtu/h 1232 1182 355 45.5 450 30 87 830 186 298
42/48/54 kBtu/h 1290 1230 447 56 590 30 120 1006 294 380
Dimension
Capacity
(Unit:mm)

8INSTALLATION OF INDOOR
ENGLISH
- Install the unit leaning to a drainage hole side
as a figure for easy water drainage.
Position of console Bolt
- A place where the unit will be leveled and
that can support the weight of the unit.
- A place where the unit can withstand its vi-
bration.
- A place where service can be easily per-
formed.
CASE 2 Select and mark the position for fix-
ing bolts
- Drill the hole for set anchor on the face of
ceiling.
- Insert the set anchor and washer onto the
suspension bolts for locking the suspension
bolts on the ceiling.
- Mount the suspension bolts to the set an-
chor firmly.
- Secure the installation plates onto the sus-
pension bolts (adjust level roughly) using
nuts, washers and spring washers.
Flat washer
for M10
(accessory)
Flat washer
for M10
(accessory)
Hanging bolt
(W3/8 or M10)
Nut
(W3/8 or M10)
Nut
(W3/8 or M10)
Spring washer
(M10)
1 Set anchor
Old building New building
2 Plate washer
3 Spring washer
4 Nut
5 Suspension
bolts
CAUTION
Tighten the nut and bolt to prevent unit
falling.
!

INSTALLATION OF INDOOR
ENGLISH
9
Caution for gradient of unit and
drain piping
Lay the drain hose with a downward inclina-
tion so water will drain out.
- Always lay the drain with downward inclina-
tion (1/50 to 1/100). Prevent any upward flow
or reverse flow in any part.
- 5mm or thicker formed thermal insulator
shall always be provided for the drain pipe.
- Upward routing not allowed
- Install the P-Trap (or U-Trap) to prevent a
water leakage caused by the blocking of in-
take air filter.
Ceiling
Ceiling
1~3mm
Drainage hole
Drain Pump
unuse
Drain Pump
use
Drainage hole
• Install declination of the indoor unit is
very important for the drain of the duct
type air conditioner.
• Minimum thickness of the insulation for
the connecting pipe shall be 5mm.
• The unit must be horizontal or declined
to the drain hose connected when
finished installation.
CAUTION
!
Drainage holeMake sure to be closed.
Unit
Drainage pipe
(Local supply)
Thermal insulator
(Local supply)
CORRECT
INCORRECT
U-Trap
B
C
A 70mm
B 2C
C 2 x SP
SP = External Pressure
(mmAq)
Ex) External Pressure
= 10mmAq
A 70mm
B 40mm
C 20mm
A

10 INSTALLATION OF INDOOR
ENGLISH
Indoor Unit Drain Piping
- Drain piping must have down-slope (1/50 to
1/100): be sure not to provide up-and-down
slope to prevent reversal flow.
- During drain piping connection, be careful
not to exert extra force on the drain port on
the indoor unit.
- The outside diameter of the drain connection
on the indoor unit is 32mm.
Piping material: Polyvinyl chloride pipe VP-25
and pipe fittings
- Be sure to execute heat insulation on the
drain piping.
- Install the drain raising pipes at a right
angle to the indoor unit and no more than
300mm from the unit.
Heat insulation material: Polyethylene foam
with thickness more than 8 mm.
Drain test
- Connect the main drain pipe to the exterior
and leave it provisionally until the test comes
to an end.
- Feed water to the flexible drain hose and
check the piping for leakage.
- When the test is complete, connect the flexi-
ble drain hose to the drain port on the indoor
unit.
1Remove the Air Filter.
2Check the drainage.
- Spray one or two glasses of water upon
the evaporator.
- Ensure that water flows drain hose of in-
door unit without any leakage.
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
Feed water
Flexible drain hose
(accessory)
Main
drain pipe
Glue the join
t