LG JTNC368NLE0 INSTALLATION MANUAL
Ceiling Cassette
Air Conditioner
INSTALLATION MANUAL
LG
IMPORTANT
• Please read this installation manual completely before
installing the product.
• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.
• 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.
Ceiling Cassette Air Conditioner Installation Manual
TABLE OF CONTENTS
Installation
Requirements
Safety Precautions ............................3
Intr
Symbols used in this Manual..........8
Features...........................................8
Installation ..........................................9
Installation Tools..................................9
Installation of Indoor,
Outdoor Unit
Air purging .........................................24
Test running
Installer setting((PCRCUSZ0)..........28
Installation guide at the seaside ......36
........................................8
oduction
...................................10
....................................26
How to enter installer setting mode
....................................................28
Test Run mode ..........................29
Address Setup of Central Control
....................................................30
Thermistor..................................31
Ceiling Height Selection............32
Group Setting.............................33
Dry contact mode setting..........34
Option Function Setting.............35
Required Parts Required Tools
Connecting cable
Pipes: Gas side
Liquid side
Hanging Bolt
(W 3/8 or M10 length 650mm)
Insulated drain hose
Additional Drain hose
(Inner Dia.............32mm)
Horizontal meter
Screw driver
Electric drill
Hole core drill (ø70mm)
Flaring Tools set
Torque Wrenches
Hexagonal Wrench (4mm, 5mm)
Gas-leak detector
Owner’s Manual
Installation Manual
Thermometer
2 Ceiling Cassette Air Conditioner
Safety Precautions
Do not allow water to run into
electric parts.
• It may cause There is risk of fire,
failure of the product, or electric
shock.
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
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.
Do not store or use flammable
gas or combustibles near the
product.
• There is risk of fire or failure of
product.
in
ol
s
a
G
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.
When the product is soaked
(flooded or submerged),
contact an Authorized Service
Center.
• There is risk of fire or electric
shock.
Do not use the product in a
tightly closed space for a long
time.
• Oxygen deficiency could occur.
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.
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.
Installation Manual 5
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.
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 that water is drained
away properly.
• A bad connection may cause
water leakage.
Take care to ensure that nobody could step on
or fall onto the outdoor unit.
• This could result in personal injury and product
damage.
Keep level even when
installing the product.
• To avoid vibration or water
leakage.
90
Do not install the product where the
noise or hot air from the outdoor unit
Use two or more people to lift
and transport the product.
could damage the neighborhoods.
• It may cause a problem for your
• Avoid personal injury.
neighbors.
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.
6 Ceiling Cassette Air Conditioner
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.
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, etc.
• There is risk of fire, electric
shock, or damage to the plastic
parts of the product.
ax
n rh ne
T i
W
Do not touch the metal parts of
the product when removing the
air filter. They are very sharp!
• 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.
Do not drink the water
drained from the product.
• It is not sanitary and could cause
serious health issues.
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.
Use a firm stool or ladder
when cleaning or maintaining
the product.
• Be careful and avoid personal
injury.
Do not insert hands or other objects
through the air inlet or outlet while the
product is operated.
• There are sharp and moving
parts that could cause 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
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.
Installation Manual 7
Air Outlet
Air Inlet
Anti-bacteria
Remote
Controller
Installation
Installation of Indoor, Outdoor Unit
Selection of the best location
1) Indoor unit
• There should not be any heat source or steam
near the unit.
• There should not be any obstacles to prevent
the air circulation.
• A place where air circulation in the room will
be good.
• A place where drainage can be easily
obtained.
• A place where noise prevention is taken into
consideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from
the wall, ceiling, or other obstacles.
• The indoor unit must keep the maintenance
space.
Ceiling Board
500 or
more
Ceiling
Ceiling Board
300 or more
500 or
or more
1000
Above 2500
Floor
more
4000 or less
300 or less
Unit:mm
2) Outdoor unit
• If an awning is built over the unit to prevent
direct sunlight or rain exposure, be careful that
heat radiation from the condenser is not
restricted.
• There should not be any animals or plants
which could be affected by hot air discharged.
• Ensure the spaces indicated by arrows from
the wall, ceiling, fence or other obstacles.
More than
300mm
F
e
n
o
b
st
c
a sc
Sun
r
o
of
More than
More than
300mmm
300mm
e
or
l
e
More than 600mm
More than 700mm
10 Ceiling Cassette Air Conditioner
3) Piping length and the elevation
Installation
Model
Pipe Size
mm(inch)
Length A(m) Elevation B(m)
Gas Liquid Standard Max. Standard Max.
*Additional
refrigerant
(g/m)
JT-C186PLE0 12.7 (1/2") 6.35(1/4") 7.5 30 5 20 25
JT-C246PLE0 15.88 (5/8")
JT-C368NLE0 9.52(3/8") 7.5 50 5 30 30
15.88 (5/8")
6.35(1/4") 7.5 50 5 30 25
JT-C488MLE0 19.05(3/4") 9.52(3/8") 7.5 50 5 30 40
A
Outdoor unit
B
Indoor unit
Outdoor unit
Oil trap
If piping length is more than 10m
A
B
Indoor unit
A
B
Outdoor unit
Indoor unit
CAUTION:
• Rated performance for refrigerant line length of:7.5m
• Capacity is based on standard length and maximum allowance length is on the
basis of reliability.
• Improper refrigerant charge may result in abnormal cycle.
• Oil trap should be installed every 10 meters.
Installation Manual 11
Installation
Ceiling opening dimensions and hanging bolt location
• The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions.
• Select and mark the position for fixing bolts and
piping hole.
• Decide the position for fixing bolts slightly tilted to
875
787
the drain direction after considering the direction of
drain hose.
• Drill the hole for anchor bolt on the ceiling.
• The hole size for four anchor bolts is
671
840
840
Ø 14.5mm & 40mm depth.
CAUTION:
• This air-conditioner uses a drain pump.
• Horizontly install the unit using a level gauge.
• During the installation, care should be taken
Ceiling
not to damage electric wires.
Level gauge
Ceiling board
NOTICE
• Thoroughly study the following installation locations:
1. In such places as restaurants and kitchens, considerable amount of oil steam and flour
adhere to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat
exchange reduction, spraying, dispersing of water drops, drain pump malfunction, etc.
In these cases, take the following actions:
• Make sure that the ventilation fan for smoke-collecting hood on a cooking table has
sufficient capacity so that it draws oily steam which should not flow into the suction of the
air conditioner.
• Make enough distance from a cooking room to install the air conditioner in such a place
where it may not suck in oily steam.
684
Unit: mm
875
Air conditioner
Take enough
distance
Cooking table
Use the ventilation fan
for smoke-collecting
hood with sufficient
capacity.
2. Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is
in suspension in factories, etc.
3. Avoid places where inflammable gas is generated, flows in, is stored or vented.
4. Avoid places where sulfurous acid gas or corrosive gas is generated.
5. Avoid places near high frequency generators.
12 Ceiling Cassette Air Conditioner
Loading...