LG ARNU24GTHC0 Owner's manual

ENGLISH
ITALIANO
LG
ESPAÑOL
FRANÇAIS
Type: Ceiling Cassette - 4Way
DEUTSCH
IMPORTANT
• 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.
Ceiling Mounted Cassette - 4Way Type Indoor Unit Installation Manual
TABLE OF CONTENTS
Installation Requirements
Required Parts
Required Tools
Installation Parts ....................3
Safety Precautions .................4
Installation
Selection of the best location 7
Ceiling dimension and hanging bolt location ......................8
Wiring Connection .................9
❏ Installation guide map
❏ Four type "A" screws & plastic
anchors
❏ Connecting cable
❏ Level gauge
❏ Screw driver
❏ Electric drill
❏ Hole core drill
❏ Horizontal meter
❏ Pipes: Gas side
Liquid side
(Refer to Product Data)
❏ Insulation materials
❏ Additional drain pipe
❏ Flaring tool set
❏ Specified torque wrenches
(different depending on model No.)
❏ Spanner .......Half union
Installation of Decoration
Panel ....................................11
Drain Piping .........................12
Installation of
Remote Control ...................14
Optional operation ...............15
❏ Hexagonal wrench
❏ Gas-leak detector
❏ Vacuum pump
❏ Gauge manifold
❏ Owner's manual
❏ Thermometer
2
Indoor Unit
Installation Parts
ENGLISH
Installation Parts
Anti-bacteria filter
Air
Intake
Air Outlet
Wired Remote Controller(Optional)
Name
Drain hose
Clamp metal
Quantity
1 EA
1 EA
Shape
Washer for
hanging backet
8 EA
Plastic band
Insulation for
fitting
8 EA
1 SET
for gas pipe
(Other)
• Paper pattern for
installation
• Owner's manual
• Installation manual
for liquid pipe
Installation Manual 3
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
■ Be sure to read before installing the air conditioner.
■ Be sure to observe the cautions specified here as they include important items related to safety.
■ 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 a defective or underrated circuit breaker. Use this
appliance on a dedicated circuit.
For electrical work, contact the
dealer, seller, a qualified electrician, or an Authorized Service
Center.
Always ground the product.
• There is risk of fire or electric shock.
• Do not disassemble or repair the
product. There is risk of fire or electric shock.
• There is risk of fire or electric shock.
Install the panel and the cover
of control box securely.
Always install a dedicated
circuit and breaker.
Use the correctly rated breaker
or fuse.
• There is risk of fire or electric shock.
• Improper wiring or installation may
cause fire or electric shock.
• There is risk of fire or electric shock.
4
Indoor Unit
Safety Precautions
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.
Be cautious when unpacking
and installing the product.
• There is risk of fire or electric shock.
• Moisture may condense and wet or
damage furniture.
• 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.
Do not install the product on a
defective installation stand.
Be sure the installation area
does not deteriorate with age.
• There is risk of fire, electric shock,
explosion, or injury.
• It may cause injury, accident, or
damage to the product.
• If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and
personal injury.
■ Operation
Do not store or use flammable gas or combustibles near the product.
• There is risk of fire or failure of product.
Gasolin
Installation Manual 5
ENGLISH
Do not modify or extend the
power cable.
Safety Precautions
■ Installation
Always check for gas (refrigerant) leakage after installation or
repair of product.
Install the drain hose to ensure
that water is drained away properly.
Keep level even when installing
the product.
• Low refrigerant levels may cause
failure of product.
• A bad connection may cause water
leakage.
• To avoid vibration or water leakage.
90˚
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 product.
Do not install the product where
it will be exposed to sea wind
(salt spray) directly.
• It may cause a problem for your
neighbors.
• Avoid personal injury.
• It may cause corrosion on the product.
Corrosion, particularly on the condenser and evaporator fins, could
cause product malfunction or inefficient
operation.
6
Indoor Unit
Installation
Installation
ENGLISH
Read completely, then follow step by step.
Selection of the best location
Above 250
400 or less
50 or
more
100
or more
Ceiling
Ceiling Board
Ceiling Board
50 or
more
30 or less
30 or more
• There should not be any heat source or steam near the unit.
• There should not be any obstacles to 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 have the maintenance space.
Unit:cm
Floor
CAUTION : In case that the unit is installed near the sea, the installation parts
may be corroded by salt. The installation parts (and the unit) should be taken
appropriate anti-corrosion measures.
Installation Manual 7
Installation
Ceiling dimension and hanging bolt location
• The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions.
Ceiling
Ceiling board
Level gauge
TE Series
TH/TD Series
75
Unit:mm
CAUTION :
• This air-conditioner uses a drain pump.
• Install the unit horizontally using a
level gauge.
• During the installation, care should be
taken not to damage electric wires.
840 Unit size
45
875 (Ceiling opening)
785(Hanging bolt)
840 Unit size
570 Unit size
570 Unit size
45
39.5
672 (Hanging bolt) 75
521(Hanging bolt)
600 (Ceiling opening)
39.5
875 (Ceiling opening)
101.5 672 (Hanging bolt) 101.5
600 (Ceiling opening)
Unit:mm
• Select and mark the position for fixing bolts and piping hole.
• Decide the position for fixing bolts slightly tilted to the drain
direction after considering the direction of drain hose.
• Drill the hole for anchor bolt on the wall.
NOTICE
• Avoid the following installation location.
1. Such places as restaurants and kitchen where considerable amount of oil steam and flour is generated.
These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function.
In these cases, take the following actions;
• Make sure that ventilation fan is enough to cover all noxious gases from this place.
• Ensure enough distance from the cooking room to install the air conditioner in such a place where it may
not suck oily steam.
2. Avoid installng air conditioner in such
places where cooking oil or iron powder is
Air conditioner
generated.
3. Avoid places where inflammable gas is
generated.
Take enough
4. Avoid place where noxious gas is
distance
Use the ventilation fan
generated.
for smoke-collecting
hood with sufficient
5. Avoid places near high frequency
capacity.
Cooking table
generators.
8
Indoor Unit
Installation
Ceiling
Flat washer for M10
(accessory)
Ceiling board
Spring washer
(M10)
Flat washer for M10
(accessory)
Nut
(W3/8 or M10)
Air Conditioner body
Ceiling board
Set screw of
paper pattern (4 pieces)
Paper pattern
for installation
Open the ceiling board
along the outer edge of the
paper pattern.
Adjust the same height
• The following parts are local purchasing.
Hanging Bolt
- W 3/8 or M10
Nut
- W 3/8 or M10
150mm
Nut
(W3/8 or M10)
CAUTION : Tighten the nut and bolt to
prevent unit from falling off.
Spring Washer - M10
Plate Washer - M10
Wiring Connection
• Open the control box cover and connect the remote control cord and Indoor power wires.
Indoor
power cord
Remote
control cord
Control box cover
[Air inlet side view]
Control box cover
fitting screw(2 units)
Fire prevention
cover
Fire prevention cover
fitting screw(1 units)
Terminal Block in Indoor
1(L)
2(N)
3
Terminal Block in Outdoor
4
C
D
Vcc
A
B
INDOOR POWER INPUT
WARNING : Make sure that the screws of the terminal are free from looseness.
Installation Manual 9
ENGLISH
Keep the length of the bolt
from the bracket to 40mm
Hanging bolt
(W3/8 or M10)
Installation
CAUTION:
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power specialized for the air conditioner. As for the method of
wiring, be guided by the circuit diagram posted on the inside of control box cover.
2) Provide a circuit breaker switch between power source and the unit.
3) The screws which fasten the wiring in the casing of electrical fittings are liable to come loose
from vibrations to which the unit is subjected during the course of transportation. Check
them and make sure that they are all tightly fastened. (If they are loose, it could give rise to
burn-out of the wires.)
4) Specification of power source
5) Confirm that electrical capacity is sufficient.
6) Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage
marked on the name plate.
7) Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
8) Never fail to equip a leakage breaker where it is wet or moist.
9) The following troubles would be caused by voltage drop-down.
• Vibration of a magnetic switch, damage on the contact point, fuse breaking, disturbance by the normal function of an overload protection device.
• Proper starting power is not given to the compressor.
HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual.
(air filter cleaning, temperature control, etc.)
10
Indoor Unit
Installation
Installation of Decoration Panel
1. Temporarily fix two decoration panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by
amount 10mm in length.)
The fixing screws (hexagon M5 screw) are included the indoor unit box.
2. Remove the air inlet grille from the decoration panel. (Remove the hook for the air inlet grille cord.)
3. Hook the decoration panel key hole (
) on the screws fixed in step above, and slide the panel so
that the screws reach the key hole edge.
4. Retighten completely two temporarily fixed screws and other two screws. (Total 4 screws)
5. Connect the louver motor connector and display connector.
6. After tightening these screws, install the air inlet grille (including the air filter).
Piping side
Air conditioner unit
Decoration panel fixing screws
(hexagon M5 screws)
Temporally fitting at 2 places
(Tightening about 10mm)
Control box cover
Louver
motor
Inlet Grille
Decoration panel
Key holes
Display
Lead wire for
louver motor and
display
Decoration panel fixing screws
(Hexagon M5 screw)
Inlet Grille
CAUTION : Install
certainly the decoration panel.
Cool air leakage
causes sweating.
Water drops fall.
Good example
Bad example
Air conditioner
unit
Ceiling
board
Decoration panel
Fit the insulator (this part) and
be careful for cool air leakage
Air conditioner unit
Air
Cool air leakage
(no good)
Ceiling
board
Decoration
panel
Installation Manual 11
ENGLISH
Before installing the decoration panel,
always remove the paper template.
The decoration panel has its installation
direction.
Installation
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
Upward
routing
not allowed
Pipe clamp
Indoor unit
Maintenance
drain port
• Be sure to install heat insulation on the drain piping.
Heat insulation material: Polyethylene foam with thickness more than 8 mm.
1/50~1/100
MAX 700mm
Drain test
The air conditioner uses a drain pump to drain water.
Use the following procedure to test the drain pump operation:
Feed water
Flexible drain hose
(accessory)
Main
drain pipe
Drain Pump
Drain
port
Glue the joint
Drain hose connection
Use the clip (accessory)
Drain pan
CAUTION : The supplied flexible drain
hose should not be curved, neither
screwed. The curved or screwed hose
may cause a leakage of water.
• 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.
• Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.
• When the test is complete, connect the flexible drain hose to the drain port on the indoor
unit.
Flexible drain hose
1/50~1/100
Flexible drain hose
MAX 700mm
Flexible drain hose
12
Indoor Unit
Installation
Attention
2. Keep the drain hose downward up to 1/50~1/100
inclination.
Prevent any upward flow or reverse flow in any
part.
1/50~1/100
MAX 700mm
3. 5mm or thicker formed thermal insulator is provided for the drain pipe.
Thermal insulator
(Local supply)
Drain pipe
(Local supply)
Unit
Elbow
Drain pump
4. Upward routing is not allowed.
5. Be sure to check the drain pump for normal operation and abnormal noise when electrical wiring is
complete.
Wall
Drain hose
Installation Manual 13
ENGLISH
1. Possible drain-head height is up to 700mm. So, it
must be installed below 700mm.
Installation
Installation of Remote Control
• Although the room temperature sensor is in the indoor unit, the remote controller should be installed in such
places away from direct sunlight and high humidity.
Installation of the remote controller
• Select places that are not splashed with water.
• Select controller position after receiving customer approval.
• The room temperature sensor is built in the indoor unit.
• This remote controller equipped with liquid crystal display. If this position is higher or lower, display is difficult
to see.(The standard height is 1.2 ~1.5m high)
Routing of the remote controller cord
• Keep the remote controller cord away from the refrigerant piping and the drain piping.
• To protect the remote controller cord from electrical noise, place the cord at least 5cm away from other
power cables. (audio equipment. television set, etc.)
• If the remote controller cord is secured to the wall, provide a trap at the top of the cord to prevent water
droplets from running.
WIRED REMOTE CONTROLLER INSTALLATION
DISASSEMBLING
• Separate the under plate from Remote
controller box.
Front case
Th
• Attach insulator to under plate.
el
ow
er
Lever carefully
the box open
using a screw
driver, etc.
pa
rt
Remote controller
box body
• Fix the under plate on the wall
• Fix the cord clamps on the wall by ø 3 tapping screws (accessory).
• Fix the remote controller cord.
Face of wall
Cord clamp
(accessory)
Under plate
Screw (accessory)
Remote controller
ELECTRICAL WIRING
(Main board)
CN REMO
Wire and make sure that teminal
numbers are matched on unit side and
remote controller side.
The maximum length of the cord is 100m.
If the length of the cord exceeds 50m,
2
use a wire size greater than 0.5mm .
14
Indoor Unit
Installation
Optional operation
Room Temp. sensor
Slide switch for 2 Thermistor
R13H
TH
OP2
R14H OP3
SW TH
Position 2
Position 1
Position 3
REMO
MAIN
2TH
REMO
MAIN
2TH
R12H
CO1H
OP5R16H
OP4
R15H
OP1
R19H
R11H
OP7
R18H
R17H
OP6
LO
C070
STAND
R03S
HI
R04S
SW
R01S
R02S
(1) Open the rear cover of the wired remote-controller to
set the mode.
(2) Select one of three selectable modes as follows.
• Position 1:
The room temperature is controlled by the thermistor
of the main body.
• Position 2:
The room themperature is controlled by the thermistor of the wired remote-controller, control the temperature according to the position of wired remote-controller.
• Position 3:
The room temperature is controlled by lower temperature between the temperature of main body and of
remote-controller sensor.
(3) Move the slide switch to set position.
(4) Close the rear cover and check if it works normally.
HIGH
Slide switch for ceiling height
CAUTION :
• Select the position after counselling with a customer.
In case of cooling mode, room temperature is controlled by the main body sensor.
• To control the room temperature by a wired remote controller, install the remote
controller (room temp. sensor) to sense the temperature more accurately.
• Maunfactured in the position 3.
2) Adjusting air volume to the height of ceiling
You can choose the RPM(or air volume) of indoor
motor according to the height of ceiling to supply the
comfortable atmosphere to consumers.
R14H OP3
SW TH
STAND
OP2
REMO
MAIN
2TH
Hi
R12H
CO1H
OP1
R19H
R11H
OP5R16H
OP4
R15H
OP7
R18H
R17H
OP6
LO
STAND
R03S
HI
Slide switch for ceiling height
Change of air volume
Increasing
Decreasing
SW
HIGH
R01S
R02S
Mode of slide switch
High Ceiling
Standard
Low Ceiling
Lo
R04S
Ceiling height
more than 4.0m
3.2~4.0m
less than 3.2m
R13H
TH
Low ceiling
Standard
(Default)
High Ceiling
C070
Procedure
1. Choose the selectable position in the table after
measuring the height of ceiling.
2. In the case of changing the height as "high" or "low",
open the rear cover of the wired remote-controller.
3. Move the slide switch to the set position.
4. Close the rear cover and check if it works nomally.
Slide switch for 2 Thermistor
Remark
Maunfactured in standard mode
Installation Manual 15
ENGLISH
1) Two Thermistor System
Memo
16
Indoor Unit
P/No.: 3828A20873A
Printed in Korea
After reading this manual, keep it in a place easily accessible to the user for future reference.