LG | LBNB2156QC.ANONE2 | LG LBNB2156QC.ANONE2 Owner’s Manual

LG
Low Static Hide Away Type Air Conditioner LG
OWNER'S & INSTALLATION
MANUAL
IMPORTANT
Please read through this manual. It contains valuable
information about your air conditioner. This manual may
help save time and money by explaining proper product
maintenance and preventing improper use.
PRECAUTIONS
Pay close attention to precautions in order to prevent
potential hazards and damage from misuse or improper
installation. LG is not responsible for any damages caused
by misuse of the product.
P/No.: MFL62760202
OUT-LINE OF INSTALLATION
Index
Page No.
1.The following should be always observed for safety.............................. 3
Installation works
Installation Parts
Required tools
2. Installation of Indoor, Outdoor unit ......................................................... 4
A) Selection of best location of indoor .....04
• Level
B) Ceiling dimension & Hanging blot detail........05
• Screw driver
• Four Type “A” screws
C) Filter convertible option.......06
• Electric drill
Connecting
cable
•
D) Drain piping .........................07
•
Hole core drill (ø70mm)
Insulation of the piping & drain...08
E)
F) Out door unit best location & piping ....10
3. Connecting Pipes to the Indoor Unit ..................................................... 12
1) Preparation of Piping...12
• Pipes: Gas side
• FlaringTools set
Liquid side
• Insulated drain hose
• Insulation materials
4. Connecting Pipes to the Outdoor Unit .................................................. 14
1) Connecting the pipes to
the Outdoor Unit ..........14
5. IR Remote Sensor installation & operation detail................................. 14
6. Connecting Cables between Indoor Unit and Outdoor Unit ................ 16
A) Circuit Breaker Detail......................16
• Screw driver
B) Wiring diagram, wiring specification & interconnection
detail.................................. ................17
C) Outdoor Wire Routine & Pipe Routine.......25
7. Air Purging of the Connecting Pipes and the Indoor Unit.................... 27
• Hexagonal Wrench (4mm/5mm)
• Gas-leak Detector
8. Operating Instructions.................... ........................................................ 28
A) Indoor Unit, Outdoor Unit ...................... 28
B) Remote Control Preparation .. .............. 29
C) Remote Control Operations .. ............... 30
2
1. The following should be always observed for safety
• Please report to or take consent by the supply authority before connecting to the system.
• Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before
installing the air conditioner.
• Be sure to observe the cautions specified here as they include important items related to safety.
• The indications and meanings are as follows.
WARNING
Could lead to death, serious injury, etc.
CAUTION
Could lead to serious injury in particular environments when operated incorrectly.
• After reading this manual, be sure to keep it together with the owner's manual in an accessible
place.
WARNING
Perform the installation securely referring to the
installation manual.
Do not install it yourself (customer).
• Incomplete installation could cause injury due to fire, electric shock,
the unit falling or a leakage of water. Consult the dealer from whom
you purchased the unit or special installer.
• Incomplete installation could cause a personal injury due to
fire, electric shock, the unit falling or a leakage of water.
Install the unit securely in a place which can bear the
weight of the unit.
Perform electrical work according to the installation
manual and be sure to use an exclusive circuit.
• When installed in an insufficient strong place, the unit could fall
causing injured.
• If the capacity of the power circuit is insufficient or there is
incomplete electrical work, it could result in a fire or an electric
shock.
Use the specified wires to connect the indoor and the
outdoor units securely and attach the wires firmly to
the terminal board connecting sections so the stress
of the wires is not applied to the sections.
Attach the electrical part cover to the indoor unit and
the service panel to the outdoor unit securely.
• If the electrical part cover if the indoor unit and/or the service
panel if the outdoor unit are not attached securely, it could result
in a fire or electric shock due to dust, water, etc.
• Incomplete connecting and fixing could cause fire.
Be sure to use the part provided or specified parts for
the installation work.
Check that the refrigerant gas do not leak after
installation is completed.
• The use of defective parts could cause an injury or leakage of
water due to a fire, electric shock, the unit falling, etc.
CAUTION
Perform the drainage/piping work securely
according to the installation manual.
Do not install the unit in a place where an
inflammable gas leaks.
• If there is a defect in the drainage/pipin g work, water
could drop from the unit and household goods could be
wet and damaged.
• If gas leaks and accumulates in the area surrounding the unit, it
could cause an explosion.
3
2). Installation of indoor & Outdoor.
A).Selection of the best location of Indoor
Indoor unit
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.
Inspection hole
(600 x 600)
Control box
• 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 outdoor unit.
600
600
• The place where the unit is not affected by an electrical
noise.
Side view (unit: mm)
• The place where air circulation in the room will be good .
• There should not be any heat source or steam near the
unit
Confirm the positional relationship between the unit and
suspension bolts.
H=20 or more
• Installation the ceiling opening to clean the filter or service
under the product.
• Suitable dimension "H" is necessary to get a slooe
to drain as aiven in the fiaure
(Length: mm)
Capacity(Btu/h)
18/24/30k
36/48/60k
A
B
600
1100
Low static Duct type
B(Min)
A(Min)
Ceiling
Service Space
A
B
[Inspection Hole Standard]
Number of
Inspection hole
Distance between
False ceiling & Actual ceiling
1
More than 100cm
2
Hole size should be
more than the size of IDU.
Remarks
Sufficient space in the ceiling for servicing.
20cm to 100cm
Insufficient space. Difficult for servicing
Less than 20cm
Minimum height for motor replacement.
4
B).Ceiling dimension and hanging bolt location
Installation of Unit
B
A
J
Install the unit above the ceiling correctly.
CASE 1
C
D
POSITION OF SUSPENSION BOLT
G
E
• Apply a joint-canvas between the unit and duct to absorb
unnecessary vibration.
• Apply a filter Accessory at air return hole.
I
F
(Unit:mm)
Dimension
A
B
C
D
E
F
18/24/30k BTU/h
1130 1180 383
36/48/60k BTU/h
575
93
190
G
H
I
J
H
Capacity(Btu/h)
Drain Pump use
Drainage hole
21 1065 163 1100
M10 Nut
X4
M10 washer
X4
M10 washer
X4
M10 Nut
X8
CASE 2
• 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 vibration.
• A place where service can be easily performed.
Indoor Unit Installation
• Select and mark the position for fixing 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 anchor firmly.
• Secure the installation plates onto the suspension
bolts (adjust level roughly) using nuts, washers
and spring washers.
Old building
New building
1 Set anchor
Plate washer
3 Spring washer
4 Nut
CAUTION : Tighten the nut and bolt
to prevent unit falling.
5 Suspension
bolts
5
C).Filter convertible option.
Air Filter
Panel Rear
Air outlet
Panel Rear
Air outlet
• Low static duct type in case of suction from back
side.
Air Filter
• Low static duct type in case of suction from bottom
side.
CAUTION
1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner.
2. Minimum thickness of the insulation for the connecting pipe shall be 19mm.
Front of view
• The unit must be horizontal or declined to the drain hose connected when finished
installation.
Ceiling
Drainage hole
Drain Pump use
6
D). 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.
Upward
routing
not allowed
Pipe clamp
Piping material: Polyvinyl chloride pipe VP-25 and
pipe fittings
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.
Drain test
The air conditioner uses a drain pump to drain water.
Use the following procedure to test the drain pump operation:
Flexible drain hose
Main
drain pipe
Drain Pump
Drain
port
Glue the joint
Drain hose connection
Use the clip
Drain pan
• 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.
CAUTION : The supplied flexible drain
hose should not be curved, neither
screwed. The curved or screwed hose
may cause a leakage of water.
Max 300mm
Hanger
distance
1~15m
Metal
clamp
Hanger Bracket
1/50~1/100 slope
Max 700mm
Feed water
Flexible drain hose
Insulation
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.
7
HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual.
(air filter cleaning, temperature control, etc.)
Standard Accessories
Name
Drain hose
Clamp metal
Quantity
1 EA
2 EA
Washer for
hanging backet
8 EA
Clamp
(Tie Wrap)
Insulation for
fitting
(Other)
1 SET
4 EA
• Owner's manual
• Installation manual
Shape
for gas pipe
for liquid pipe
E). Insulation of the Piping & Drain
INSULATION, OTHERS
Insulate the joint and tubes completely.
All thermal insulation must comply with local requirement.
THERMAL INSULATION
INDOOR UNIT
Union for gas pipe
Thermal insulator for refrigerant pipe
(Local supply) Thermal insulator for
piping(Local supply)
Refrigerant pipe and thermal
insulator(Local supply)
Hose clip for thermal insulator
(Local supply)
Overlap with thermal
insulator for piping.
Hose clip for thermal insulator(Local supply)
Make sure that there is no clearance here.
Thermal insulator for refrigerant pipe
(Local supply)
Union for liquid pipe
Felt
Rubber
Insulation
No clearance
TEST AND CHECK
n
After all workings are finished, check the working and operation.
• Air distribution ............... Is the air circulation good?
• Drain ............................. Is the drainage smoothly and no sweating?
• Gas leakage ................. Is the piping connection correctly?
• Wiring ........................... Is the wiring connection correctly?
• Lock-bolt ....................... Is the lock-bolt of compressor loosened?
• Insulation
Is the unit fully insulated?
• Ground
Is the unit safely grounded?
8
Cabinet
Care and maintenance
Caution: Before performing any maintenance, turn off the main power to the system.
Indoor Unit
Never use any of the followings:
q
• Water hotter than 40°C
Could cause deformation and/or
discoloration.
• Volatile substances
Could damage the surfaces
of the air conditioner.
Grille, Case, and Remote Control
q
Turn the system off before cleaning. To clean,
wipe with a soft, dry cloth. Do not use bleach or
abrasives.
Note:
Supply power must be disconnected before
cleaning the indoor unit.
SI
Be
N NER
n zene
SCO
U RIN G
C LB
A R GER
1
Clean the filter with a vacuum or warm, soapy
water.
• If very dirty, wash with a solution of
detergent in lukewarm water.
• If hot water (50°C or more) is used, filter
may be deformed.
2
After washing with water, dry well in the shade.
3
Re-install the air filter.
Air Filter
The air filters behind Indoor unit
(the suction side) should be checked and cleaned
once every 2 weeks or more often if necessary.
E
C
D
B
A
J
G
Indoor Unit Dimensions (mm)
(Unit:mm)
Dimension
A
B
C
D
E
F
18/24/30k BTU/h
1130 1180 383
36/48/60k BTU/h
575
93
190
G
H
I
J
Capacity(Btu/h)
I
F
21 1065 163 1100
H
Drainage hole
9
Drain Pump use
F). Outdoor Unit best location & piping.
Note:
Dirty or clogged coils will reduce the operating
efficiency of the system and cause higher
operating costs.
The heat exchanger coils and panel vents of the
outdoor unit should be checked regularly. If clogged
with dirt or soot, the heat exchanger and panel vents
may be professionally steam cleaned.
OutdoorUnit
Unit
Outdoor
(Side)
D
(Rear)
H
(Side)
Air intake
vents
Control Cover
Air intake
vents
Control Cover
Connecting Wire
Air outlet
vents
Connecting Wire
Air outlet
vents
Connection Pipe
Drain Hose
L2
L1
(Rear)
W
Connection Pipe
Drain Hose
L1
L2
Indoor Unit
D
W
H
Model
Capacity
LB-B2156QC
1.5 TR
LB-B2206QC
2 TR
LB-B2256QC / LB-B2258QC
2.5 TR
JB-B2156QC
1.5 TR
JB-B2258QC
2.5 TR
LMA36B2ALI
1.5x2 TR
LMA48B2ALI
2.0x2 TR
LMA60B2ALI
2.5x2 TR
W
1180
1180
1180
1180
1180
1180
1180
1180
Indoor dimension
D
575
575
575
575
575
575
575
575
H
190
190
190
190
190
190
190
190
10
W
800
800
870
870
870
870
906
906
Outdoor Dimnesion
D
H
260
555
260
555
320
655
320
655
320
800
320
655
406
1135
406
1135
L1
590
590
545
545
545
545
606
606
L2
305
305
350
350
350
350
465
465
>>Outdoor unit space requirement.
•If an awning is built over the unit to prevent
direct sunlight or rain exposure, be careful
that heat radiation from t he 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 w all, ceiling, fence or other obstacles.
Su
nr
More than
50cm
oof
10cm
Fe
ob nce o
sta r
cle
s
More than
50cm
More than
100cm
>>Piping length and the elevation
Model
LB-B2156QC
LB-B2206QC
LB-B2256QC/
LB-B2258QC
JB-B2156QC
JB-B2258QC
LMA36B2ALI
LMA48B2ALI
LMA60B2ALI
Capacity
1.5 TR
2 TR
2.5 TR
1.5 TR
2.5 TR
1.5x2 TR
2.0x2 TR
2.5x2 TR
Pipi Sizes
( Dia In Inch)
Gas
Liquid
1/2"
1/4"
5/8"
1/4"
5/8"
5/8"
5/8"
1/2" x 2
5/8" x 2
5/8" x 2
Length(A meter)
standard
Max
7.5
30
7.5
30
Elevation(B meter) Additional
standard
Max
Gas Charge
5
15
R-22 15gm
5
15
R-22 20gm
3/8"
7.5
30
5
15
R-22 25gm
3/8"
3/8"
1/4"x2
1/4"x2
3/8"x2
7.5
7.5
5
5
5
80
80
30
30
30
5
5
5
5
5
35
35
15
15
15
R-410
R-410
R-22
R-22
R-22
30gm
30gm
15gm
20gm
25gm
• Capacity is based on standard length and maximum allowance
length is on the basis of reliability .
• Oil trap should be installed every 5 meters.
• If 18K model is installed at a distance of 15m, 150g of refrigerant
should be added [(15-5) x 15g = 150g].
Indoor unit
Factory charged gas
Flared connection (union)
A
B
Use seamless pipe
Outdoor
Outdoor unit
U-Trap
Indoor unit
Indoor
B
A
B
Flared connections
(Service valves)
A
Outdoor unit
11
3. Connecting Pipes to the Indoor Unit
3-1. Preparation of Piping
Copper
tube
Main cause of gas leakage is defect in
flaring work. Carry out correct flaring work
in the following procedure.
Slanted Uneven Rough
90
1) Cut the pipes and the cable.
Use the accessory piping kit or the pipes
purchased locally.
Measure the distance between the
indoor and the outdoor unit.
Cut the pipes a little longer than
measured distance.
Cut the cable 1.5m longer than the pipe
length.
Pipe
Reamer
Point down
2) Burrs removal
Completely remove all burrs from the cut
cross section of pipe/tube.
Put the end of the copper tube/pipe to
downward direction as you remove burrs
in order to avoid to let burrs drop in the
tubing.
Flare nut
Copper tube
3) Putting nut on
Remove flare nuts attached to indoor
and outdoor units, than put them on
pipe/tube having completed burr
removal.
(Not possible to put them on after flaring
work)
Handle
4) Flaring work
Bar
Carry out flaring work using flaring tool
as shown below.
Outside Diameter
1/4"
3/8"
1/2"
5/8"
3/4"
"A"
Bar
Yoke
Cone
"A"
0~0.5
0.5~0.8
0.5~0.8
0.8~1.0
1.0~1.3
Copper pipe
Clamp handle
Red arrow mark
Smooth all round
Inside is shining without scratches.
Firmly hold copper tube in a bar(or die) as
indicated dimension in the table above.
= Improper flaring =
5) Check
Compare the flared work with figure.
If flare is noted to be defective, cut off
the flared section and do flaring work
again.
Even length
all round
12
Inclined Surface Cracked Uneven
damaged
thickness
6) Pipe bending
Annealed copper pipe with small diameter (ø6.35 or ø9.52) can be easily bent manually. In
this case, secure large R(radius) for the bend section and gradually bend pipe. If annealed
copper pipe is large in diameter (ø12.7, ø15.88 or ø19.05), bend pipe with bender. Use bender
appropriate for the pipe diameter.
7) Brazing
In refrigerant piping, bending (in particular, acute bending) must be minimized to reduce
piping resistance. Bending is, however, necessary in some places by virtue of the installation
position of devices or of the building structure, piping distance or finishing appearance.
Perform brazing using ready-made elbow. Aside from this function, brazing
perform brazing using ready-made elbow. Aside from this function, brazing
also serves to connect straight pipes, generally using ready-made sockets. While brazing,
protect piping against heat with wet cloth to avoid damaging valve packing or burning
thermal insulator with burner heat. While brazing, blow inert gas (nitrogen gas or carbonic
gas) to prevent formation of oxidation film in copper piping; otherwise, the refrigerant circuit
will clog. The blowing of nitrogen gas (or carbonic gas) through 3-way valves is described in
the following:
8) Refrigerant piping(Flare piping)
When connecting piping, be sure to keep piping dry(keep piping away from water), clean
(keep piping away from dust) and airtight (avoid refrigerant leakage).
When connecting piping on rainy days or making a through-hole in wall, take due care to
prevent water or plaster from entering piping.
CAUTION
a. This procedure is designed to prevent
formation of oxidation film by filling piping
with inert gas. Note that excessive gas
pressure will generate pinholes at brazed
points.
(Nitrogen gas: Supply pressure
0.05~0.1kg/cm2G)
b. When supplying inert gas, be sure to open
one end of piping.
Water enters
13
Plaster enters
4. Connecting Pipes to the Outdoor Unit
1) Connecting the pipes to the
Outdoor unit
1. Align the center of the pipingsand
sufficiently tighten the flare nut with
fingers.
2. Finally, tightenthe flare nut with torque
wrenchuntilthe wrenchclicks.
• When tightening the flare nut with torque
wrench, ensure the direction for
tightening follows the arrow on the
wrench.
Pipe size
Torque
1/4"
1.8kg.m
3/8"
4.2kg.m
1/2"
5.5kg.m
5/8"
6.6kg.m
3/4"
6.6kg.m
Outdoor unit
Gas side piping
(Bigger Dia.)
Liquid side piping
(Smaller Dia.)
Torque wrench
5. IR Remote Sensor Installation & Operation
• Install the IR remote sensor about 6 feet above the floor in an area with good air circulation at an average temperature.
Do not install the IR remote sensor where it can be affected by:
- Drafts, or dead spots behind doors and in corners.
- Hot or cold air from ducts.
- Radiant heat from sun or appliances.
- Concealed pipes and chimneys.
TEMP
- Uncontrolled areas such as an outside wall
behind the remote controller.
- This IR remote sensor is equipped with
LED display and ON/OFF button. For proper
display of the IR remote sensor
The IR remote sensor should be installed
properly as shown in Fig.1.
(The standard height is 6 feet from floor
level.)
Remote Controller
yes
yes-Optional
LG
no
TEMP
COMP
POWER
Remote Controller
TIMER
FILTER
ON/OFF
6feet
no
TEMP
Controller
Remote
no
Fig.1 Typical locations for IR Remote Sensor
14
Installation of IR Remote Sensor
1. Connect the IR sensor cable
to the CN-DISPLAY connector
of main PCB Assy.
The IR sensor cable is connected as factory default.
2. Fix the rear side of the installation board with
the screw.
<Front side of
installation board>
<Rear side of
installation board>
Guide slot
Fixate the IR Remote
Sensor cable to
the guide slot.
3. Now attach the IR PCB Assy at the rear
side of installation board.
Use the screws
for fixate the unit
firmly on the wall.
Bottom
Installation board
Wall
Side
When disassemble the IR remote sensor
from the installation board, use the driver as
shown in the right picture and insert it into the
hole with the arrow. And when you pull the driver
in the front direction, the IR remote sensor
will be separated.
Wall
Side
Wall
Side
Wall
Side
Wall
Side
Do not install the cable to be 10m or above.
(It can cause communication error.)
• When installing the extension cable, check the connecting direction of the connector of the IR remote sensor side
and the product side for correct installation.
• If you install the extension cable in the opposite direction, the connector will not be connected.
• Specification of extension cable: AWG 26 (2sim 7shield) or above
15
6). Connecting Cable between Indoor and Outdoor Unit
Perform the electrical wiring work according to
the electrical wiring connection.
A) Circuit Breaker Detail
• All wiring must comply with local
requirements.
• Select a power source that is capable of
supplying the current required by the air
conditioner.
• Use a recognized circuit breaker
between the power source and the unit.
A disconnection device to adequately
disconnect all supply lines must be
fitted.
Circuit Breaker
Main
power source
Switch box
Outdoor
Indoor
• Capacity of circuit breaker
Circuit Breaker
Model
Capacity
1 Phase
LB-B2156QC
LB-B2206QC
LB-B2256QC
LB-B2258QC
JB-B2156QC
JB-B2258QC
LMA36B2ALI
LMA48B2ALI
LMA60B2ALI
1.5 TR
2 TR
2.5 TR
2.5 TR
1.5 TR
2.5 TR
1.5x2 TR
2.0x2 TR
2.5x2 TR
25
25
32
NA
25
NA
20 x 2
20 x 2
NA
3 Phase
NA
NA
NA
20
NA
20
NA
NA
32
Main
power source
Indoor
• Warranty will be null & void if wiring is
not as per installation instructions.
16
Circuit Breaker
Outdoor
B) Wiring Diagram
Indoor Wiring Diagram :
Model :
LB-B2156QC /
LB-B2206QC /
LB-B2256QC /
LB-B2258QC /
LMA36B2ALI /
LMA48B2ALI /
LMA60B2ALI
(R-22 Gas Charge
Model)
CN-PIPE/IN
CN-POWER
CN-PTC
RD
CN-VM
RY-D/PUMP
BR
CN-DISPLAY
CN-DISP
BL
FUSE 250V
3.15A
CN-FLOAT
BK
CONTROLLER
FROM OUTDOOR
3854A20298K
NOTE : Connect IR PCB Assy. at CN-DISP of PCB Assy.
Outdoor Wiring Diagram :
Model :
Model :
OUTDOOR WIRING DIAGRAM
LB-B2256QC
L1
(R-22 Gas
Charge Model)
Magnetic T1
L2 Contractor T2
A1
A2
RD BK
GR
BK
Out
Motor
RD
OR
GR
RD
S RD
C
BK BL
COMP
BK WH
BK
2
3
L N E
4
5
L N
RD
BK
2
4
Power
6 Relay 8
0
1
GR/YL
RD
BK
H
S
1(L) 2(N)
4
5
L N E
L N
BK
C
F
3854A20298J
3854A20298U
OUTDOOR WIRING DIAGRAM
COMP
In door & Out door connection detail
MOTOR
1
T3
T1
INDOOR
YELLOW
3ø415 V
Power Supply
BK
RD WH BK
CAPACITOR 1
RD
L2
L3
PHASE
NEUTRAL
COMP
GND
1
2
3
4
5
6
PHASE IN (R)
PHASE IN (S)
PHASE IN (T)
NEUTRAL IN
GND IN
1
2
3
7
8
9
10
11
PHASE
NEUTRAL
COMP
GND
3ø, MONTORING RELAY
T3
BK
L3 L2 L1
A1
TERMINAL C
BL
YL
RD
BL
YL
ORANGE
RD
18 15
A2
Magnetic
Contactor
T2
OUTDOOR
Terminal No.
BLACK
T2
RD
RD
BK
BK
TERMINAL A
2
S
H
INPUT MAINS/SUPPLY TO
FROM
(1ø,230V)
INDOOR INDOOR
Model : LB-B2258QC
(R-22 Gas charge Model)
1
R
R
RD
INPUT MAINS/SUPPLY TO
FROM
(1ø,230V)
INDOOR INDOOR
T1
WH
COMP
S
F
L1
YL
S RD
C
6
C
BK
BL
T/B
6
YL
BK
Out
Motor
RD
GR
BK BR
R
T/B
1
OUTDOOR WIRING DIAGRAM
LB-B2156QC /
LB-B2206QC
(R-22 Gas
Charge Model)
TERMINAL B
3
T
7
N
9
8
G
L
10
N
11 12
S
NORMAL CROSS-SECTIONAL AREA
WIRE NO.
3ø 415V
Power Supply
To Indoor From Indoor
(3ø, 415V)
Power Supply (1ø, 230V) Signal
SPECIFICATION
1,2,3,7 & 8
3.5 mm2
5 CORE
9,10 & 11
1.25 mm2
3 CORE
3854A20298Q
17
Outdoor Wiring Diagram :
Model : LMA36B2ALI (R-22 Gas Charge Model)
RD
OUTDOOR WIRING DIAGRAM
OR
CAP3
BK
5
BR
RD
C
BK
RD
R
COMP. 1
FAN
MOTOR
S
RD
C WH
S
R
H
TB
1
C F
CAP 2
C
C F
BK
CAP 1
BL
BL
BK
H
RD
RD
R
RD
OR
COMP. 2
S
TB
WH
2
0
6
4
1
GR
RD/BR
N2 L2
BK/BL
6
RD/BR
GR
5
RD
4
SIGNAL
SIGNAL
3
BK
RD
BK/BL
2
BK
BK/BL
1
8
RD/BR
RD
RD/BR
L1 N1
RD/BR
BK/BL
RD
BK/BL
0
BK/BL
1
BK/BL
BK/BL
BK/BL
4
RD/BR
RD/BR
2
6
RD/BR
8
BK/BL
2
(1ø, 230V)
TO INDOOR
INPUT MAINS SUPPLY UNIT 1 UNIT 1
TO INDOOR
UNIT 2
(1ø, 230V)
INPUT MAINS SUPPLY UNIT 2
3854A20298X
Outdoor Wiring Diagram :
Model : LMA48B2ALI (R-22 Gas Charge Model)
OUTDOOR WIRING DIAGRAM
C
FAN
MOTOR1
C
FAN
MOTOR2
R
R
S
OR
S
OR
YL
RD
C
H
BK
CAP 1
BK
R
F
CAP 2
WH
C
WH
C
BK
BK
TB4
2
0
RD
RD
8
2
0
RD
BK
4
BK
1
6
4
1
BK
BK
BR
BR
BK
SIGNAL
TERMINAL
BLOCK (B)
7
TO INDOOR
(1Ø, 230V)
INPUT MAINS SUPPLY
8
9
GREEN
6
BK/BL
5
RD/BR
4
RD
BK/BL
BK
RD
3
GREEN
RD/BR
GR/YL
BK
2
10
11
BK
GR/YL
RD
1
RD
6
12
SIGNAL
8
RD
TB3
RD
RD
F
S
COMP. 2
TB2
TERMINAL
BLOCK (A)
C
BK
R
S
COMP. 1
TB1
YL
RD
H
BK
TO INDOOR
(1Ø, 230V)
INPUT MAINS SUPPLY
3854A20298Y
Outdoor Wiring Diagram :
Model : LMA60B2ALI (R-22 Gas Charge Model)
OUTDOOR WIRING DIAGRAM
COMP(1)
W
COMP(2)
W
U
U
V
V
BL
RD
18 15 20
RD
20
BK WH RD
BK WH RD
L1 L2 L3
A2
6 5 4
BL YL RD
A1
Magnetic 1
Contactor
T1 T2 T3
BK
L1 L2 L3
A2
Magnetic 2
Contactor
A1
BK
11
T1 T2 T3
9 8 7
BL YL RD
11
BL YL RD
Magnetic Contactor(2)
L3 L2 L1
Magnetic Contactor(1)
21 21
BL BL
28 25
YL 27
BK 28
BK
GN/YL
TERMINAL (B)
12
11 10
9
8
7
6
5
G N
TO
INDOOR 1
1Ø230 V
2
3
4
3
B
2
1
1
Y R
3Ø415 V
POWER SUPPLY
TERMINAL (A)
Indoor Wiring Diagram :
Model : JB-B2156QC (R410 Gas Charge Model)
CN-PIPE/IN
CN-POWER
CN-PTC
RD
CN-VM
RY-D/PUMP
BR
CN-DISPLAY
CN-DISP
BL
FUSE 250V
3.15A
CN-FLOAT
BK
CONTROLLER
FROM OUTDOOR
3854A20298K
NOTE : Connect IR PCB Assy. at CN-DISP of PCB Assy.
Outdoor Wiring Diagram :
Model : JB-B2156QC (R410 Gas Charge Model)
1ph 230V
To
Indoor
321
HP
SWITCH
OUT OR(GR)
MOTOR
4 5 6 78 9
RD
S
GR
C
COMP
BR
GR
FUSE
BL
BR
GR
R
BK WH
BK
T/B1
H
T/B2
BR
BL
GR
BL
BL
A1 A2
L1
T1
Magnetic
Contactor
L2
T2
C
YL
BR
BK
BL
OUTDOOR WIRING DIAGRAM
F
3854A20372B
19
Connecting Cables between Indoor and Outdoor Unit
18/24/30K BTU/h
Applied Model:- LB-B2156QC,LB-B2206QC,LB-B2256QC, JB-B2156QC.
1) Connecting cables to the Indoor Unit
Connect the wires to the terminals on the control board individually according to the
outdoor unit connection.
l
Ensure that the color of the wires of outdoor unit and the terminal No. are the same as
those of indoor unit respectively
1) Input 1-phase power supply into outdoor & wire specification.
Outdoor terminal block
1
2
GND
L
N
GND
Wire specification.
Model
LB-B2156QC
LB-B2206QC
LB-B2256QC
JB-B2156QC
Capacity
1.5 tr
2 TR
2.5 TR
1.5 TR
1 Phase
mm2 * core
2.5 mm2*3
2.5 mm2*3
2.5 mm2*3
2.5 mm2*3
2) For connection between of Indoor and Outdoor unit & wire specifiacation
A) LB-B2156QC, LB-B2206QC, LB-B2256QC
B) JB-B2156QC
Indoor terminal block
1
2
RD
BK
4
Outdoor terminal block
3
GND
GND
5
1
BR
GND
2
RD
6
BK
5
3
GND
GND
6
4
BR
7
Note : GND = Ground Earthing
Wire specification.
Model
LB-B2156QC
LB-B2206QC
LB-B2256QC
JB-B2156QC
Capacity
1.5 tr
2 TR
2.5 TR
1.5 TR
1 Phase
No of core
1.5 mm2
1.5 mm2
1.5 mm2
1.5 mm2
4
4
4
4
CAUTION
The power cord connected to the outdoor unit should be
The connecting cable connected to the indoor and outdoor
with the following specifications
unit should be with the following specifications
NORMAL CROSS-SECTIONAL AREA
Capacity
18/24 K BTU/h
GN
/YL
20
1 Phase
2.5mm2
GN
NORMAL
CROSS-SECTIONAL
AREA
1.25mm 2 (18/24K)
D
20
mm
mm
If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.
WARNING
Make sure that the screws of the terminal are free from looseness.
2) Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
21
Connecting Cables between Indoor and Outdoor Unit
30K BTU/h
Applied Model:- JB-B2258QC / LB-B2258QC.
1) Connecting cables to the indoor Unit
Connect the wires to the terminals on the control board individually according to the
outdoor unit connection.
l
Ensure that the color of the wires of outdoor unit and the terminal No. are the same as
those of indoor unit respectively.
1) Input 3-phase power supply into outdoor, cable specification 4 core 2.5 sq mm2 & Separable
Earthing Wire.
JB-B2258QC
Outdoor terminal block A
Outdoor terminal block B
1
2
3
R
Y
B
5
6
GND
N
LB-B2258QC
Outdoor terminal block A
Outdoor terminal block B
1
2
3
R
Y
B
7
8
N
GND
Note : GND = Ground Earthing
2) For connection between of Indoor and Outdoor unit & wire specification 4 core , 1.25 sq mm2 .
JB-B2258QC
2
Outdoor terminal block
RD
Indoor terminal block
3
BK
1
LB-B2258QC
4
BR
2
3
5
8
Terminal B
GND
GND
GND
9
RD
GND
1
10
11
BK
BR
2
3
Terminal B
Note : GND = Ground Earthing
CAUTION
The power cord connected to the outdoor unit should be
The connecting cable connected to the indoor and outdoor
with the following specifications
unit should be with the following specifications
NORMAL CROSS-SECTIONAL AREA
Capacity
30K BTU/h
20
NORMAL
CROSS-SECTIONAL
AREA
1.25mm 2 (30K)
3 Phase
2
2.5mm
GN
D
20
mm
mm
If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.
WARNING
Make sure that the screws of the terminal are free from looseness.
2) Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
22
Connecting Cables between Indoor and Outdoor Unit
36/48K BTU/h
Applied Model:- LMA36B2ALI, LMA48B2ALI
1) Connecting cables to the Indoor Unit
Connect the wires to the terminals on the control board individually according to the
outdoor unit connection.
l
Ensure that the color of the wires of outdoor unit and the terminal No. are the same as
those of indoor unit respectively
1) Input 1-phase power supply into outdoor & wire specification.
A) LMA36B2ALI
B) LMA48B2ALI
Outdoor terminal block
1
2
2
GND L N
Unit-1
N
Wire specification.
1
Model
LMA36B2ALI
LMA48B2ALI
Capacity
1.5TR x 2
2TR x 2
1 Phase
mm2 * core
2.5 mm2*3
2.5 mm2*3
1
L GND
Unit-2
2
L
10 11 12
3
N GND
Unit-1
L
N GND
Unit-2
2) For connection between of Indoor and Outdoor unit & wire specification
A) LMA36B2ALI
B) LMA48B2ALI
Unit-1
Indoor terminal block
1
2
Unit-2
3
1
2
Unit-1
3
GND
1
Unit-2
3
2
GND
1
3
2
BK
GND
RD BK BR
1
Outdoor terminal block
2
RD
BR
3
4
Unit-1
5
GND
6
RD
3
BK
4
Unit-2
BR
6
5
RD
9
Unit-1
10
BK
BR
11
12
Unit-2
Note : GND = Ground Earthing
Wire specification.
Model
LMA36B2ALI
LMA48B2ALI
Capacity
1 Phase
No of core
1.5 TR x 2
2 TR x 2
1.5 mm2
1.5 mm2
4
4
CAUTION
The power cord connected to the outdoor unit should be
The connecting cable connected to the indoor and outdoor
with the following specifications
unit should be with the following specifications
NORMAL CROSS-SECTIONAL AREA
Capacity
36/48 K BTU/h
GN
/YL
20
1 Phase
2.5mm2
GN
NORMAL
CROSS-SECTIONAL
AREA
1.25mm 2 (36/48K)
D
20
mm
mm
If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.
WARNING
Make sure that the screws of the terminal are free from looseness.
2) Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
23
Connecting Cables between Indoor and Outdoor Unit
60K BTU/h
Applied Model:- LMA60B2ALI
1) Connecting cables to the indoor Unit
Connect the wires to the terminals on the control board individually according to the
outdoor unit connection.
l
Ensure that the color of the wires of outdoor unit and the terminal No. are the same as
those of indoor unit respectively.
1) Input 3-phase power supply into outdoor, cable specification 4 core 2.5 sq mm2 & Separable
Earthing Wire.
LMA60B2ALI
Outdoor terminal block
5
4
3
2
1
GND N
B
Y
R
Note : GND = Ground Earthing
2) For connection between of Indoor and Outdoor unit & wire specification 4 core , 1.25 sq mm2 .
Unit-2
Indoor terminal block
1
2
Unit-1
3
1
2
3
GND
GND
BR
Outdoor terminal block
BK
RD BR
12 11 10
9
BK
RD
8
Unit-2
7
Unit-1
Note : GND = Ground Earthing
CAUTION
The power cord connected to the outdoor unit should be
The connecting cable connected to the indoor and outdoor
with the following specifications
unit should be with the following specifications
NORMAL CROSS-SECTIONAL AREA
Capacity
60K BTU/h
20
NORMAL
CROSS-SECTIONAL
AREA
1.25mm 2 (60K)
3 Phase
2
2.5mm
GN
D
20
mm
mm
If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.
WARNING
Make sure that the screws of the terminal are free from looseness.
2) Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
24
C) Outdoor Wiring Routine and Pipe Routine
Outdoor unit
1. Remove the Cover control from the unit
by loosening a screw.
Connect the wires to the terminals on
the control board individually as
following.
Terminal block
Cord Clamper
2. Secure the cable onto the control board
with the holder (clamper).
3. Refix the cover control to the original
position with the screw.
Over 5mm
Cover control
Power supply
cord
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 pasted on the inside of control box cover.
2) Provide a circuit breaker switch between power source and the unit.
3) The screw 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 there of, fuse breaking,
disturbance to the normal function of a overload protection device.
• Proper starting power is not given to the compressor.
25
>> Piping Routine
1. Wrap the connecting portion of indoor
unit with the Insulation material and
secure it with two Plastic Bands. (for the
right pipings)
• If you want to connect an additional drain
hose, the end of the drain-outlet should
keep distance from the ground. (Do not
dip it into water, and fix it on the wall to
avoid swinging in the wind.)
Seal a small opening
around the pipings
with gum type sealer.
Drain hose
Taping
In case of the Outdoor unit being installed
below position of the Indoor unit.
2. Tape the Pipings, drain hose and
Connecting Cable from bottom to top.
Pipings
Connecting
cable
3. Form the pipings gathered by taping
along the exterior wall and fix it onto the
wall by saddle or equivalent.
Power supply
cord
Trap is required to prevent water from entering
into electrical parts.
In case of the Outdoor Unit being installed
above position of the Indoor Unit.
2. Tape the Pipings and Connecting cable
from bottom to top.
3. Form the pipings gathered by taping
along the exterior wall, and make the
trap prevent water from entering into the
room.
4. Fix the pipings onto the wall by saddle
or equivalent.
26
Seal a small opening
around the pipings
with gum type sealer.
Trap
7. Air Purging of the Connecting Pipes and the Indoor Unit
The air which contains moisture remaining in the refrigeration cycle may cause a malfunction
on the compressor.
1. Confirm that both the liquid side valve and the gas side valve are set to the closed position.
2. After connecting the piping, check the joints for gas leakage with gas leak detector.
3. Remove the service port nut, and connect the gauge manifold and the vacuum pump to the
service port by the charge hose.
4. Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 76cmHg.
5. Remove the valve stem nuts, and fully open the stems of the 2-way and 3-way valves with a
hexagon wrench.
6. Tighten the valve stem nuts of the 2-way valve and 3-way valve.
7. Disconnect the charge hose and fit the nut to the service port.
(Tightening torque: 1.8kg.m)
Indoor unit
Liquid side
2-way valve/
3-way valve
Closed
Outdoor unit
Gas side
3-way
valve
Vaccum pump
OPEN
CLOSE
27
Closed
8. Operating Instructions
A) Indoor Unit, Outdoor Unit
Wired Remote
Controller (Optional)
LG
COMP
TIMER
POWER
FILTER
ON/OFF
Wireless Remote Receiver & Controller
(Standard)
LG
6
5
COMP
POWER
TIMER
FILTER
4
3
2
1
ON/OFF
Operation Indication Lamps
1
2
3
4
5
6
Signal Recepter
Forced Operation : Use the ON/OFF button when remote control is not available.
Signal Receptor : Receives the signal from remote control (signal receiving sound:
one long beep)
FILTER SIGN
: Lights up after 240 hours from the time of first power on operation.
: Lights up during timer operation.
: Lights up during system operation.
TIMER
ON/OFF
COMP
: Lights up during outdoor operation (i.e. when compressor
switch on)
Outdoor Unit
Air Intake
(side, rear)
Connecting Wire
Power Wire
Air Outlet
Vents
Connection Tube
Drain Hose
Cooling model: Low static Type Air Conditioner for cooling
28
B) Remote Control Preparation
29
C) Remote Control Operations
The remote control transmits the signals to the system.
Features of the Remote Control- Door Closed
Signal transmitter
5
6
1
5
6
Signal transmitter
OL A/SWING
JET CO
POWER
TEMP
3
1
3
FAN SPEED
4
2
4
2
ON
MODE
ON
Flip-up door
(closed)
Flip-up door
(closed)
TYPE A
TYPE B
INDOOR FAN SPEED
4 SELECTOR
START/STOP BUTTON
1 Operation
starts when this button is
Used to select fan speed in four steps
low, medium, high, or CHAOS.
For low static duct unit, CHAOS speed is not available.
pressed and stops when the button is
pressed again.
OPERATION MODE
2 SELECTION
BUTTON
JET COOL
5 Used
to start or stop the speed
ROOM TEMPERATURE
3 SETTING
BUTTONS
AIR SWING BUTTON
6 Used
to stop or start louver movement and
Used to select the operation mode.
cooling. (Speed cooling operates
super high fan speed in cooling mode).
For low static duct unit, JET COOL function is not available.
Used to select the room temperature.
set the desired up/down airflow direction.
For low static duct unit, AIR SWING function is not available.
Operation Mode
Cooling Operation
Cooling Operation
Auto Operation
Auto Operation
Healthy Dehumidification Operation
Healthy Dehumidification Operation
Heating Operation
(Cooling Model)
(Heat Pump Model)
* Your unit shall have either Type A or Type B Remote Control.
30
Features of the Remote Control- Door Opened
Signal
transmitter
ON/OFF TIMER BUTTONS
1 Used
to set the time of starting and stopping
operation.
TIME SETTING BUTTONS
2 Used
to adjust the time, (See page 38)
TIMER SET/CANCEL BUTTONS
3 Used
to set the timer when the desired time is
obtained and to cancel the Timer operation.
(See page 38)
4
CANCEL
1
5
2
3
ON
OFF
SET
6
SLEEP MODE AUTO BUTTON
4 Used
to set Sleep Mode Auto operation.
7
8
(See page 38)
Flip-up door
(opened)
AIR CIRCULATION BUTTON
5 Used
to circulate the room air without cooling
Signal
transmitter
or heating. (See page 39)
ROOM TEMPERATURE
6 CHECKING BUTTON
Used to check the room temperature.
A/SWING
OL
JET CO
POWER
TEMP
RESET BUTTON
7 Used
prior to resetting time or after replacing
batteries.
FAN SPEED
4
MODE
1
5
2
SLEEP
ON TIMER OFF
FAN
ROOM
CANCEL
SET
TIMER
3
2ndF BUTTON
8 Used
prior to using modes printed in blue at
6
the bottom of buttons.(See page 37)
7
8
Flip-up door
(opened)
31
Cooling operation
1
Press the Start/Stop button.
The unit will respond with
a beep.
2
Open the door of the remote controller. To select Cooling
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
ON
Cooling
3
OL A/SWING
JET CO
Auto
Healthy
Dehumidification
Close the door of the remote controller. Set the temperature
lower than the room temperature. The temperature can be
set within a range of 18°C~30°C at intervals of 1°C.
To raise the temperature
POWER
TEMP
To lower the temperature
FAN SPEED
MODE
ON
4
Heating
(Heat pump model only)
Set the fan speed again with the door
of the remote controller still closed.
You can select the fan speed in 3
steps-low, medium, & high.
Each time the button is pressed, the
fan speed mode is shifted.
* CHAOS speed is not available for low static duct unit.
32
Auto operation (Optional)
ON
1
Press the Start/Stop button.
The unit will respond with
a beep.
2
Open the door of the remote controller. To select Auto
Operation, press the operation mode selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
Cooling
OL A/SWING
JET CO
POWER
TEMP
FAN SPEED
3
Auto
Healthy
Dehumidification
Heating
(Heat pump model only)
The temperature and fan speed are automatically set by the
electronic controls based on the actual room temperature. If
you want to change the set temperature, press the Room
Temperature Setting buttons. The cooler or warmer you feel,
the more times (up to two times) you should press the button.
The set temperature will be changed automatically.
MODE
ON
To raise the temperature
To lower the temperature
* CHAOS speed is not available for low static duct unit.
During Auto Operation
q
You cannot control the indoor fan speed. It has already been set by the Fuzzy rule.
q
If the system is not operating as desired, manually switch to another mode. The system will not
automatically switch from the cooling mode to the heating mode, or from heating mode to cooling
mode, it must be done by manually resetting.
33
Healthy dehumidification operation
1
Press the Start/Stop button.
The unit will respond with
a beep.
2
Open the door of the remote controller. To select Healthy
Dehumidification Operation, press the Operation Mode
Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
ON
Cooling
3
OL A/SWING
JET CO
TEMP
FAN SPEED
POWER
Auto
Healthy
Heating
Dehumidification (Heat pump model only)
Set the fan speed again with the door
of the remote controller still closed.
You can select the fan speed in 3
steps-low, medium, high. Each time
the button is pressed, the fan
speed mode is shifted.
* CHAOS speed is not available for low static duct unit.
MODE
ON
During Healthy Dehumidification Operation
q
If you select the dehumidification mode on the operation selection button, the product starts to run the
dehumidification function. It automatically sets the room temp. and airflow volume to the best condition
for dehumidification, based on the sensed current room temp.
In this case, however, the setting temp. is not displayed on the remote controller and you are not able to
control the room temp. either.
q
During the healthy dehumidification function, the airflow volume is automatically set according to the
optimization algorithm responding to the current room temp. status, so that the room condition is kept
healthy and comfortable even in the very humid season.
34
Heating operation (Heat pump model only)
1
Press the Start/Stop button.
The unit will respond with
a beep.
2
Open the door of the remote controller. To select Heating
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
ON
Cooling
3
Auto
Healthy
Heating
Dehumidification (Heat pump model only)
Close the door of the remote controller.
Set the temperature higher than the room temperature.
The temperature can be set within a range of 18°C~30°C at
intervals of 1°C.
To raise the temperature
OL A/SWING
JET CO
POWER
TEMP
To lower the temperature
FAN SPEED
MODE
ON
4
Set the fan speed again with the door of the
remote contro lle r still closed. You can
select the fan speed in Three steps –low,
medium, & high. Each time the button is
pressed, the fan speed mode is shifted.
35
Jet cool operation (optional)
OL A/SWING
JET CO
POWER
1
Press the Start/Stop button.
The unit will respond with
a beep.
2
Press the Jet Cool button to operate
the speed cooling mode and the unit
will operate at super high fan speed
on cooling mode for 30 minutes.
3
To cancel the Jet Cool mode, press the Jet Cool buttons,
The fan speed button or the room temperature setting
button again and the unit will operate at high fan speed
on cooling mode.
TEMP
FAN SPEED
or
or
NOTICE
q
During the JET COOL function at any moment, the A/C starts to blow the cool air at extremely
high speed for 30 minutes setting the room temp. automatically to 18 0 C. It is especially used to
cool the room temp. quickly in a hot summer.
In heat pump mode or auto changeover mode, however, the JET COOL function is not available.
q
In order to return to the normal cooling mode from the JET COOL mode, just press the operation
mode selection button, airflow volume selection, temp. setting button or the JET COOL button
again.
q
JET COOL function is not available for LS duct models.
36
2nd F operation
CANCEL
ON
OFF
A/SWING
OL
JET CO
SET
1
Press the Start/Stop button.
The unit will respond with
a beep.
2
Open the door of the remote controller and press the 2nd
Function button to operate functions printed blue color under
buttons.
(Check the indication of 2nd function on the display of the
remote controller.)
3
2nd function disappears in a short time automatically or when
the button is pressed again.
POWER
TEMP
FAN SPEED
MODE
SLEEP
ON TIMER OFF
FAN
ROOM
CANCEL
SET
For more details, refer to functions next pages.
TIMER
37
Additional Features
SLEEP
Sleep mode
1. Press the Sleep Mode Auto button to set the time you want the unit to stop automatically.
2. The Timer is programmed in one-hour increments by pressing the Sleep Mode Auto button 1 to 7 times. The
sleep mode is available for 1 to 7 times. To alter the time period in steps of 1 hour, press the Sleep Mode
Button while aiming at air conditioner.
3. Make sure the Sleep Mode Auto LED lights up.
To cancel the Sleep Mode, press the sleep Mode Auto button several times until the star
( ) disappears from the operation display.
NOTICE
The Sleep Mode will be operated at slow fan speed (cooling)
or medium fan speed (heat pump only) for a comfortable sleep.
Setting the time
1. Time can be set only when you press the Reset button. Having replacing the batteries,
you should press the reset buttons to reset the time. Press the Start/Stop button.
POWER
2. Press 2nd F button and check if 2nd F icon is on.
3. Press the Time Setting buttons until the desired time is set.
4. Press the Timer SET button.
TIMER
CANCEL
SET
NOTICE
Check the indicator for A.M. and P.M.
Delay start/Pre-set stop
1. Make sure the time is set correctly on the display of the remote controller.
2. Press 2nd F button.
3. Press the ON/OFF Timer buttons to turn Timer on or off.
4. Press the Time Setting buttons until the desired time is set.
ON
TIMER
OFF
TIMER
CANCEL
5. To set the selected time, press the Timer setting button aiming the remote controller at the
signal receptor.
To cancel the timer setting
Check if 2nd F icon is off.
Press the Timer Cancel button aiming the remote controller at the signal receptor.
(The timer lamp on the air conditioner and the display will go out.)
SET
CANCEL
SET
NOTICE
Select one of the following four types of operation.
Delay OFF Timer
Delay ON Timer
with the unit running
Delay OFF and ON Timer Delay ON and OFF Timer
38
Air circulation mode
Circulates the room air without cooling or heating.
1. Press the Start/Stop button. the unit will respond with a beep.
2. Open the door on the remote control. Press the Air Circulation button. Close the door on the remote control.
Now each time that you press the Indoor Fan Speed Selector button, the fan speed is shifted from low to
CHAOS and back to low again.
CHAOS Air
(Function not Available)
Fan speed is on low.
Fan speed is on medium.
Fan speed is on high.
Forced operation
LG
Use for ON/OFF the unit in case
of remote misplace.
COMP
TIMER
POWER
FILTER
ON/OFF
Press the ON/OFF button on IR PCB
Assembly for 3 seconds, once you listen
beep sound remove your hand.
Note :1) Forced operation button location
varies with model.
Error Diagnosis
Sr.
No.
ERROR CODE
DIAGNOSIS
DESCRIPTION
1
CH-01
Check room thermistor
Recover after 5 seconds of operation when respective
thermistor healthy
2
CH-02
Check pipe thermistor (CN-Pipe/In)
Recover after 3 seconds of operation when respective
thermistor healthy
3
CH-04
Check float sensor / Jumper
Recover after 4 minutes of operation when float sensor /
Jumper healthy
4
CH-05
Check Dipswitch comm (Yes/No)
Check Dipswitch setting and Power Reset
5
CH-09
Check Option PCB (EPROM)
Check Interconnection of Option PCB and Power Reset
39
P/No.: MFL62760202
After reading this manual, keep it in a place easily accessible to the user for future reference.
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