LG LZ-H050GXN0 User manual

www.lg.com
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.
[ Representative ] LG Electronics Inc. EU Representative : LG Electronics European
Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The
Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
INSTALLATION MANUAL
AIR
CONDITIONER
P/NO : MFL67855509
For more information, Refer to the CD or LG Web site (www.lg.com).
VENTILATOR
Original instruction
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ

2Ventilator
Ventilator Installation Manual
TABLE OF CONTENTS
Safety Precaution.................3
Introduction ..........................8
Feature Dimension
Diagram...............................8
Standard drawing of installa-
tion ........................................9
Installation ..........................11
Selection of the best
location ..............................11
Ceiling dimension and hang-
ing bolt location .................12
Indoor Unit Installation.......13
Drain Piping and Water Sup-
ply Work..............................15
Check the drainage ...........16
Install the water supply
piping.................................16
Insulate all piping that
passes indoors ..................17
Duct Connection ................18
Connecting Pipes...............19
Preparation of Piping.........19
Connecting the pipings to the
indoor unit and drain hose to
drain pipe...........................20
Insulation, Others ..............20
Wiring Connection .............21
Electrical Wiring ..................21
Method to Connect Wiring ...23
Wiring for the Humidity Regu-
lator (Locally Procured) .....25
Wiring Example .................26
Field Setting and Test Run ...27
Perform field setting with the
remote controller ...............27
Installer Setting Code and
Value Table .......................28
Run the humidifier .............31
In case of finding a problem at
a trial operation
....................32
Airborne Noise Emission .....32
Limiting concentration ..........32
• Screws
• Nuts
• Ceiling Fixing Bolt(M10~12)
• Washer
• Aluminium Tape
• Screws
• Screw Driver
• Spanner
• Cutter
• Cutter
• Screw Driver
Installation
Requirements Required Parts Required Tools

Safety Precautions
Installation Manual 3
ENGLISH
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
CAUTION
This symbol indicates the possibility of injury or damage.
nInstallation
Do not use a defec-
tive or underrated cir-
cuit breaker. Use this
appliance on a dedi-
cated 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 dedi-
cated 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.
WARNING
Do not modify or
extend the power
cable.
• 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, explo-
sion, or injury.
Be cautious when
unpacking and
installing the prod-
uct.
• Sharp edges could
cause injury.

Safety Precautions
4Ventilator
For installation, always
contact the dealer or
an Authorized Service
Center.
• There is risk of fire,
electric shock, explo-
sion, or injury.
Do not install the
product on a defec-
tive installation
stand.
• It may cause injury,
accident, or damage to
the product.
Do not let the product
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 fur-
niture.
Install the air intake
where polluted air
can not be directly
sucked in.
• It may cause various
accidents, including suf-
focation, due to the suc-
tion of harmful
gasses(CO, etc.)
Do not install this
product in a refriger-
ated warehouse,
heated swimming
pool or other location
where the tempera-
ture and humidity are
significantly differ-
ent.
• There is risk of electrical
shock, malfunctioning.
Install this product in
an environment
where the tempera-
ture ranges from
–15°C to +45°C and
the relative humidity
is less than 80%. It
condensation is
expected to form,
heat up the fresh out-
side air using a duct
heater etc.
For re-installation of
the installed product,
always contact the
dealer or an Autho-
rized Service Center.
• There is risk of fire,
electric shock, explosion
or injury.
Do not open the
maintenance cover of
the main body during
operation.
• Otherwise, it may cause
electrical shock.
Use the outdoor air
suction hole with the
net installed to
ensure that birds
could not come in.
• Remove estrange things
like the bird’s nest. Oth-
erwise, it may cause
scarcity of indoor oxy-
gen.

Safety Precautions
Installation Manual 5
ENGLISH
Install this product in
and environments
where the outside air
intake meets the fol-
lowing conditions:
temperature range is
between –15°C and
+40°C and the rela-
tive humidity is 80%
or less.
Use the designated
electrical wires for
the terminal board
connections, and
connect the wires
securely so that they
will not become dis-
connected. (Failure
to ensure proper con-
nections may cause
fire.)
When passing metal
ducts through wood-
en buildings clad
with metal laths, wire
laths or metal, these
ducts must be
installed in such a
way that they will not
make electrical con-
tact with the metal
laths, wire laths or
metal sheets. (Power
leakage can cause
ignition)
Avoid fire equipment
• There is risk of fire.
When the product is
soaked (flooded or
submerged), contact
an Authorized Service
Center.
• There is risk of fire or
eletric shock.
Don't touch a dedicat-
ed circuit or breaker
with wet hands.
• There is risk of electric
shock.
nOperation
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.
Do not store or use
flammable gas or
combustibles near
the product.
• There is risk of fire or
failure of product.
When flammable gas
leaks, turn off the gas
and open a window
for ventilation before
turn the product on.
• Do not use the tele-
phone or turn switches
on or off. There is risk
of explosion or fire

Safety Precautions
6Ventilator
CAUTION
Don't connect the
ground wire to the win-
dow frame or water
cock.
• There is risk of electric
shock.
Do not install the prod-
uct at a smoky and oily
place like kitchen or
factory.
• Otherwise. oil may
adhere to the filter or
heating exchanger and
cause trouble.
Install the product in
an insulated space
from outdoor air.
• In case of installing the
product outside of the
insulated layer, dewing
occurs inside of the
main body in winter.And
it causes electrical
shock or falling of con-
densed water.
nInstallation
Glove should be worn when doing the installation work. (There is risk of
injury.)
Be cautious that
water could not enter
the product.
• There is risk of fire,
electric shock, or prod-
uct damage.
Turn the breaker off
when cleaning or
maintaining the prod-
uct.
• There is risk of electric
shock.
The outside ducts
must be tilted at a
gradient (1/30 or
more) down toward
the outdoor area
from the ventilator
unit, and properly
insulated. (The entry
of rain water may
cause power leaks,
fire or damage to
household property.)

Safety Precautions
Installation Manual 7
ENGLISH
Keep level even when
installing the prod-
uct.
• To avoid vibration or
water leakage.
Use two or more peo-
ple to lift and trans-
port 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. Corro-
sion, particularly on the
condenser and evapora-
tor fins, could cause
product malfunction or
inefficient operation.
Use a soft cloth to
clean. Do not use
harsh detergents, wax
or thinner, etc.
• Otherwise, color or sur-
face of the oroduct mav
deteriorate.
Clean the filter and the
heat exchanger regu-
larly and use the
gloves for cleaning.
• Adhering to a mass of
dust may cause the
deterioration of air vol-
ume.
Do not use the prod-
uct for special purpos-
es, such as preserving
foods, works of art,
etc. It is a consumer
ventilator, not a preci-
sion refrigeration sys-
tem.
• There is risk of damage
or loss of property.
nOperation
Do not block the inlet or outlet of
air flow.
• It may cause product failure.
Do not step on or put anyting on
the product.
• There is risk of personal injury and
failure of product.
Do not install the ventilation unit alone for controlling room temperature.
• If this is needed, install with another Indoor unit (air conditioner).

Introduction
8 Ventilator
Application tools
(CMH)
Introduction
Feature Dimension Diagram
Model : LZ-H050GXN0, LZ-H080GXN0, LZ-H100GXN0
LZ-H050GXH0, LZ-H080GXH0, LZ-H100GXH0
Model
1667 1140 365 599 1006 1204 185 242 252 74 510 488 449 70 67 278 29 55 83 1239 105
ABCD EFGHJ K LMNPQRSTUVkg
LZ-H050GXN0/LZ-H050GXH0
LZ-H080GXN0/LZ-H080GXH0
LZ-H100GXN0/LZ-H100GXH0
Figure Duct Pitch Pipe Connec-
tion
Drain Hose
Connection
Water Supply Pip-
ing Connection
Wei-
ght
Width
Pitch of Suspension
Fixture
Duct Connection
Flange
Unit : mm

Standard drawing of installation
Installation Manual 9
ENGLISH
Standard drawing of installation
LZ-H050GXN0 / LZ-H080GXN0 / LZ-H100GXN0
CBAModel
LZ-H050GXN0
LZ-H080GXN0
LZ-H100GXN0
[Unit : mm]
25012041006
Refrigerant piping (Gas pipe)
(Φ12.7 Flare connection)
Refrigerant piping (Liquid pipe)
(Φ6.35 Flare connection)
Sloping downwards at a
Gradient of the 1/100
Drain pipe
(Inner diameter : 25.4)
Duct slope: More than 1/30(toward the wall)
Obtaining of right distance
(preventing penetration of rain water)
Ceiling Fixing Bolt
(user-supplied)
Air supply grille
Air return grille
Inspection part
450( 600)
Duct normal diameter
ØC(user-supplied)
EA
(Exaust air outlet) OA
(Fresh air outlet)
RA
(Return air)
SA
(Supply air)
SA
(Supply air)
C
C
Ceiling suspension
bolts position
Maintenance space
Total heat Exchanger
Air Filter
Air supply grille
(user-supplied)
Air return grille
(user-supplied)
Y duct connecting
(user-supplied)
()
EA
(Exaust air outlet)
OA
(Fresh air outlet)
Inspection
hatch
Inspection
hatch
150~250
More than 600
150~200 600600
600
A
B

Standard drawing of installation
10 Ventilator
LZ-H050GXH0 / LZ-H080GXH0 / LZ-H100GXH0
CBAModel
LZ-H050GXH0
LZ-H080GXH0
LZ-H100GXH0
[Unit : mm]
Duct slope: More than 1/30(toward the wall)
Obtaining of right distance
(preventing penetration of rain water)
Ceiling Fixing Bolt
(user-supplied)
Air supply grille
Air return grille
Inspection hatch
Duct normal diameter
ØC(user-supplied)
EA
(Exaust air outlet) OA
(Fresh air outlet)
RA
(Return air)
SA
(Supply air)
SA
(Supply air)
C
C
Water supply
shut-off valve
(user-supplied)
Drain valve
(user-supplied)
Strainer
(user-supplied) Refrigerant piping (Liquid pipe)
(Ø 6.35 Flare connection)
Sloping downwards at a Drain pipe
(Inner diameter : 25.4)
Feed water pipe
(Φ6.35 Flare connection)
Gradient of the 1/100
Cistern Tank
Refrigerant piping (Gas pipe)
(Ø12.7 Flare connection)
25012041006
EA
(Exaust air outlet)
OA
(Fresh air outlet)
Ceiling suspension
bolts position
Maintenance space
Total heat Exchanger
Air Filter
Air supply grille
(user-supplied)
Air return grille
(user-supplied)
Y duct connecting
(user-supplied)
()
Inspection
hatch
Inspection
hatch
150~250
More than 600
150~200 600600
600
B
A