LG | JBNQ18GB2A1.APUNE | LG JBNQ18GB2A1.APUNE Owner’s Manual

AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : LO-STATIC CEILING DUCT TYPE AIR CONDITIONER
For Single LO-Static duct models
MFL62760204
P/No. : MFL62760204_v1
CUSTOMER CARE
1800-180-3575 (Toll Free)
CALL
12 x 7 (9:00 AM – 9:00 PM)
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www.lg.com/in/support
cac.service@lgepartner.com
To know more about LG, visit www.lg.com
For Corporate/Instutional enquiries,
please write to enquiries@lgindia.com
Regd. Office : LG Electronics India Pvt. Ltd., A Wing (3rd Floor), D-3, District Center, Saket, New Delhi - 110017
Low Static Hide Away Type Air Conditioner Owner's Manual
TABLE OF CONTENTS
F or Your Records
Write the model and serial numbers here:
Model #
Page no.
1. Safety Precautions
3
2. Operating Instructions
5
3. Care and Maintenance
14
4. Before you call for service
19
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
R ead This Manual
Inside you will find many helpful hints on how to use
and maintain your air conditioner properly. Just a little
preventive care on your part can save you a great
deal of time and money over the life of your air
conditioner.
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call
for service at all.
CAUTION
• Contact the authorized service technician for repair
or maintenance of this unit.
• Contact the installer for installation of this unit.
• The air conditioner is not intended for use by young
children or invalids without supervision.
• Young children should be supervised to ensure that
they do not play with the air conditioner.
• When the power cord is to be replaced, 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.
2
Safety
Precautions
Precautions
To prevent injury and property damage, follow these instructions.
Incorrect operation due to ignoring instructions will cause harm or damage, the seriousness of which is
indicated by the following symbols.
WARNING
This symbol shows the possibility of death or serious injury.
CAUTION
This symbol indicates the possibility of injury or damage to property.
Never Do This
Always Do This
Installation precautions
WARNING
WARNING
n Do not install, remove and reinstall the unit by yourself.
• Improper installation will cause water leakage, electrical shock, or fire. Please consult
authorized dealer or specialist for the installation work. Please note fault caused by improper
installation is not covered by warranty.
• Unit must be installed in an easily accessible area. Any additional cost required to hire a
special equipment to service the unit will be the responsibility of the customer.
WARNING
WARNING
Do not damage or use an
unspecified power cord.
Do not operate switches
with wet hands.
• It will cause electrical shock or fire.
• It may cause electrical shock.
• If the supply cord is damaged, it must be
replaced by the manufacturer or its
service agent or a similarly qualified
person in order to avoid a hazard.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
• It will cause electrical shock or
fire due to heat generation.
Do not insert your finger or
stick, etc. into the air inlet/air
outlet.
• Since the fan rotates at high
speed, this may cause an injury
or damage the unit.
When an abnormality (smell of burning, etc)
occurs, stop the air conditioner, and
turn off the breaker.
Plug in the power plug
properly.
• Otherwise, it will cause
electrical shock or fire due to
heat generation.
Do not expose the skin to
cool air directly for a long
time.
• This could damage your health.
Repair or relocation should not be done by the
customer.
• If the unit continues to be operated in an abnormal
condition, it may cause a fire, trouble, etc. In this
case, consult your dealer.
• If this is done in correctly, it may cause a fire,
electric shock, injury by dropping of the unit, water
leakage, etc. Consult your dealer.
3
CAUTION
CAUTION
• Contact the authorized Service technician for repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• The air conditioner is not intended for use by young children or infirm persons without
supervision.
• Young children should be supervised to ensure that they do not play with the air conditioner.
CAUTION
CAUTION
Do not clean the air
conditioner with water.
Ventilate well when used
together with a stove, etc.
l Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
l An oxygen shortage may occur.
Do not put a stove, etc.
where is exposed to direct
air flow.
l It may cause imperfect
combustion.
Do not operate for a long
time in high humidity, e.g.
leaving a door or window
open.
l In the cooling mode, if it is
operated in a room with high
humidity (80%r.h. or more) for a
long time, water condensed in
the air conditioner may drop and
may wet and spoil furniture, etc.
If the supply cord is damaged, it
must be replaced by a special cord
or assembly available from the
manufacturer of its service agent.
l If will cause electrical shock or
fire.
When the unit is not going to
be used for a long time, turn
off the breaker.
l It may cause an injury.
Do not step onto an unstable
bench when
attaching/detaching the
panel.
l It may case an injury, etc. by
falling down.
When the air filter is to be
removed, do not touch the
metal parts of the indoor unit.
l It may cause an injury.
Do not touch or pull the lead
wire with wet hands.
lIt will cause product breakdown
or electric shock.
4
When the unit is to be
cleaned, switch off, and turn
off the breaker.
l Since the fan rotates at high
speed during operation, it may
cause an injury.
Do not step on the outdoor
unit and do not put anything
on it.
l It may cause an injury through
dropping or falling down.
Do not use for special
purposes.
l Do not use this air conditioner to
preserve precision devices, food,
animal, plants and art objects.
It may cause deterioration of
quality, etc.
Do not press the screen
using powerful pressure
or select two buttons.
lIt will cause product breakdown
or malfunction.
2. Operating Instructions
A) Indoor Unit, Outdoor Unit
Wired Remote
Controller (Optional)
Wireless Remote Receiver & Controller
(Standard)
Operation of Indication Lamps
1 Emergency Operation button :Turns the indoor unit on or off even when
remote control is not working.
2 Signal Detector : Receives the signal from remote control
3 Timer lamp (Green) : Lights up during the timer operation.
4 Hotstart lamp (Orange) : Available only for the heat pump models, not
cooling only models.
5 System On/Off lamp (Red) : Lights up during system controller operation.
6 Filter Sign lamp (Green) : Lights up after 2,400 hours from the time of
first power on operation.
After installing the product, you must run a Test Run mode. Press
the Emergency Operation button for 5 seconds, until the LED
flickers. Then the indoor unit, duct runs cooling mode for 18
minutes, where the desired temperature is 18 °C and the
Wind strength is high.
5
Outdoor Unit
Air Intake
(side, rear)
Connecting Wire
Power Wire
Air Outlet
Vents
Connection Tube
Cooling model: Low static Type Air Conditioner for cooling
B) Remote Control Preparation
6
C) Remote Control Operations
*
*
*
*
*
INDOOR FAN SPEED SELECTION Button
Used to select fan speed in three steps low,
medium and high.
* Function not applicable for Lo-Static Duct Model.
7
Cooling Mode
8
Auto Operation Mode
9
Dehumidification Mode
10
Fan Mode
Set the fan speed again. You can select the
fan speed in three steps – low, medium and high.
Each time the button is pressed, the fan
speed mode is shifted.
11
Temperature Setting/Room Temperature Checking
12
Timer
13
Care and
maintenance
Care and maintenance
Caution: Before performing any maintenance, turn off the main power to the system.
Indoor Unit
q Never use any of the followings:
• 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/ Btu/h 1130 1180 383
575
93
190
G
H
I
J
I
F
Capacity(Btu/h)
21 1065 163 1100
H
Drainage hole
14
Drain Pump use
Outdoor Unit
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.
Note:
Dirty or clogged coils will reduce the operating
efficiency of the system and cause higher
operating costs.
OutdoorUnit
Unit
Outdoor
D
(Rear)
H
(Side)
W
Air intake
vents
Control Cover
Connecting Wire
Air outlet
vents
Connection Pipe
L1
L2
Indoor Unit
D
W
H
Model
JB-Q18GB2A0
JB-Q24GB2A0
JB-Q18GB2A1
Capacity
1.5TR
2.0TR
1.5TR
W
1180
1180
1180
Indoor dimension
D
H
575
190
575
190
575
190
15
W
800
800
770
Outdoor Dimension
D
H
260
555
260
555
545
288
L1
590
590
560
L2
305
305
330
When the air conditioner is not going to be used for a long time.
When the air conditioner is to
be used again.
When it is not going to be used for
a long time.
1
n Check that the air inlet and outlet of the
indoor/outdoor unit are not blocked.
Operate the air conditioner on Air circulation
mode (Refer to page 15) for 2 to 3 hours.
• This will dry out the internal parts.
2
Turn off the circuit breaker.
Helpful information
CAUTION
CAUTION
The air filters and your electiric bill.
If the air filters become clogged with dust, the
cooling capacity will drop, and 6% of the
electricity used to operate the air conditioner will
be wasted.
Turn off the circuit breaker when the air conditioner
is not going to be used for a long time.
Dirt may collect and may cause a fire.
Operation Tips
Do not overcool the room.
This is not good for the health
and wastes electricity.
Clean the air filter regularly.
Blockages in the air filter
reduce the airflow and lower
cooling and dehumidifying
effects. Clean at least once
every two weeks.
Keep blinds or curtains
closed.
Make sure that the doors
and windows are shut tight.
Do not let direct sunshine
enter the room when the air
conditioner is in operation.
Avoid opening doors and
windows as much as possible
to keep the cool air in the
room.
Ventilate the room
occasionally.
Since windows are kept
closed, it is a good idea to
open them and ventilate the
room now and then.
16
Self-diagnosis Function
17
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-03
Check Wired Remote Connection
with PCB
Check wired remote cable for cut/loose contact.
4
CH-04
Check float sensor / Jumper
Recover after 4 minutes of operation when float sensor /
Jumper healthy
5
CH-05
Check DIP Switch Comm (Yes/No)
Check DIP Switch setting and Power Reset.
6
CH-06
Check pipe thermistor (CB-Pipe/Out)
Recover after 3 seconds of operation when respective
thermistor healthy.
7
CH-09
Check Option PCB (EPROM)
Check Interconnection of Option PCB and Power Reset
8
CH-10
Check for BLDC Motor Fan Lock
BLDC Motor not operation.
18
Troubleshooting
Tips
Before you call for service...
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the malfunction persist, please contact your
dealer.
Case
Explanation
Have you made a mistake in timer operation?
On first starting, the indoor unit operates in
fifteen seconds.
l Has the fuse blown or has the circuit breaker
been tripped?
l Check power supply for single/reverse phase,
voltage imbalance.
l Check that this is not a damp smell exuded by
the walls, carpet, furniture or cloth items in the
room.
l Condensation occurs when the airflow from the
air conditioner cools the warm room air.
l This is the protector of the mechanism.
l Wait about three minutes and operation will
begin.
l Is the air filter dirty? See air filter cleaning
instructions.
l The room may have been very hot when the
room air conditioner was first turned on. Allow
time for it to cool down.
l Has the setting temperature been set
incorrectly?
l Are the indoor unit's air inlet or outlet vents
obstructed?
l For a noise that sounds like water flowing.
-This is the sound of freon flowing inside the air
conditioner unit.
l For a noise that sounds like the compressed air
releasing into atmosphere.
-This is the sound of the dehumidifying water
being processed inside the air conditioning
unit.
l This sound is generated by the
expansion/contraction of the inlet grille, etc. due
to changes of temperature.
l Has the circuit breaker been tripped?
The air conditioner does not
operate.
l
l
The room has a peculiar odor.
It seems that condensate is
leaking from the air Conditioner.
Air conditioner does not operate
for about 3 minutes when restart.
Does not cool or heat effectively.
The air conditioner operation is
noisy.
Crack sound is heard.
Remote control display is faint, or
no display at all.
NOTE
WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT.
The indoor side is not water resistant and should not be exposed to excess
water.
19
Wide LCD Wired Remote Controller (Optional)
20
Installer Setting - Setting Address of Central Control
27
Installer Setting - Installer Setting Code Table
0
1
2
Cooling fan
thermo off control
Setting
1
Ducted internal
heater
0 min.
10 mins.
30 mins.
60 mins.
deselect the setting
Setting
Function
Code
0
1
2
3
0
1
Function
Auto on/off sensor
operate time
Primary Heater
Operate / Stop
blackout
compensation
To setting Dry
contact
install or not
0
1
0
1
2
Setting Valve
low
off
setting ari flow
set to blackout
compensation
set to slave
Same as before
Install
Uninstall
Remocon
Code
E115
E116
E117
E118
E11A
E119
E12A
E12B
E12C
E12D
E12E
E12F
E14D
E14E
E14F
Display
0.0
1.6
1.7
1.8
1.9
1.B
1.A
2.A
2.B
2.C
2.D
2.E
2.F
4.D
4.E
4.F
26
Installer Setting - How to enter installer setting mode
25
C) Remote Control Operations
*
*
*
*
*
INDOOR FAN SPEED SELECTION Button
Used to select fan speed in three steps low,
medium and high.
* Function not applicable for Lo-Static Duct Model.
24
Outdoor Unit
Air Intake
(side, rear)
Connecting Wire
Power Wire
Air Outlet
Vents
Connection Tube
Cooling model: Low static Type Air Conditioner for cooling
B) Remote Control Preparation
23
8. Operating Instructions
A) Indoor Unit, Outdoor Unit
Wired Remote
Controller (Optional)
Operation of Indication
Lamps
1
2
5
3
6
4
Wireless Remote Receiver & Controller
(Standard)
Signal Recepter
1 Emergency Operation button :Turns the indoor unit on or off even when
remote control is not working.
2 Signal Detector : Receives the signal from remote control
3 Timer lamp (Green) : Lights up during the timer operation.
4 Hotstart lamp (Orange) : Available only for the heat pump models, not
cooling only models.
5 System On/Off lamp (Red) : Lights up during system controller operation.
6 Filter Sign lamp (Green) : Lights up after 2,400 hours from the time of
first power on operation.
After installing the product, you must run a Test Run mode. Press the
Emergency Operation button for 5 seconds, until the LED flickers. Then the
indoor unit, duct runs cooling mode for 18 minutes, where the desired
temperature is 18 °C and the Wind strength is high.
22
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
Closed
Vaccum pump
OPEN
CLOSE
21
>> 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.
Seal a small opening
around the pipings
with gum type sealer.
2. Tape the Pipings and Connecting cable
from bottom to top.
Trap
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.
20
C) Outdoor Wiring Routine and Pipe Routine
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.
Outdoor unit
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.
19
JB-Q18GB2A0 / JB-Q24GB2A0 / JB-Q18GB2A1
JB-Q18GB2A0 / JB-Q18GB2A1
JB-Q24GB2A0
JB-Q18GB2A0 / JB-Q24GB2A0 / JB-Q18GB2A1
JB-Q18GB2A0
JB-Q24GB2A0
JB-Q18GB2A1
JB-Q18GB2A0 / JB-Q24GB2A0 /
JB-Q18GB2A1
18
JB-Q18GB2A0
JB-Q18GB2A1
JB-Q24GB2A0
(R-410A Gas
charge model)
JB-Q18GB2A0
JB-Q24GB2A0
(R-410A Gas
charge model)
JB-Q18GB2A1
(R-410A Gas
charge model)
17
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.
Main
power source
Circuit Breaker
Switch box
Outdoor
Indoor
• Capacity of circuit breaker
Model
JB-Q18GB2A0 / JB-Q18GB2A1
JB-Q24GB2A0
Capacity
1 Phase
1.5 TR
2.0 TR
25
25
3 Phase
NA
NA
• Warranty will be null & void if wiring is
not as per installation instructions.
16
Choose the connecting type as indicated Case 1 and Case2. In
Case 2, connect the cable through the knock-out hole on the
rear side of the bottom.
In Case 2, the diameter of the hole on the ceiling should be smaller
than 18mm to prevent it from being shown.
Connect the IR receiver cable to the CN-DISPLAY connector of
main PCB Assembly.
Fix the rear side of the installation board with the screw.
Check the mark Up & Down on bottom case inside.
When dissemble he IR receiver from the bottom case, use a
driver as shown in the picture and insert it into the hole as indicated with the arrow mark. And when you pull the driver in the
front direction, the IR receiver will be separated.
15
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.
6.6kg.m
3/4"
6.6kg.m
5/8"
5.5kg.m
1/2"
4.2kg.m
3/8"
1.8kg.m
1/4"
Torque
Pipe size
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.
- 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.)
TEMP
Remote Controller
yes
yes-Optional
no
TEMP
Remote Controller
no
6feet
TEMP
Controller
Remote
no
Fig.1 Typical locations for IR Remote Sensor
14
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
Plaster enters
13
3. Connecting Pipes to the Indoor Unit
3-1. Preparation of Piping
Main cause of gas leakage is defect in
flaring work. Carry out correct flaring work
in the following procedure.
Copper
tube
90
Slanted Uneven Rough
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)
4) Flaring work
Carry out flaring work using flaring tool
as shown below.
Outside Diameter
1/4"
3/8"
1/2"
5/8"
3/4"
"A"
0~0.5
0.5~0.8
0.5~0.8
0.8~1.0
1.0~1.3
Handle
Bar
"A"
Bar
Yoke
Cone
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.
Inclined Surface Cracked Uneven
damaged
thickness
Even length
all round
12
>>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.
More than
50cm
Su
nr
oof
10cm
Fe
o nc
b
stae or
cle
s
More than
50cm
More than
100cm
>>Piping length and the elevation
1.5 TR
JB-Q18GB2A1
2.0 TR
JB-Q24GB2A0
Capacity
1.5 TR
JB-Q18GB2A0
Model
Pipi Sizes
( Dia In Inch)
Gas
Liquid
1/2"
1/4"
5/8"
1/2"
3/8"
1/4"
Length(A meter)
standard
Max
7.5
30
7.5
7.5
50
30
Elevation(B meter) Additional
Gas Charge
standard
Max
5
15
R-410 15gm
5
5
30
15
R-410 30gm
R-410 15gm
• 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
Flared connections
(Service valves)
11
F). Outdoor Unit best location & piping.
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.
Note:
Dirty or clogged coils will reduce the operating
efficiency of the system and cause higher
operating costs.
OutdoorUnit
Unit
Outdoor
D
(Side)
H
(Rear)
W
Air intake
vents
Control Cover
Connecting Wire
Air outlet
vents
Connection Pipe
L1
L2
Indoor Unit
D
W
H
Model
Capacity
W
1180
1180
1180
1.5TR
2.0TR
1.5TR
JB-Q18GB2A0
JB-Q24GB2A0
JB-Q18GB2A1
Indoor dimension
D
H
575
190
575
190
575
190
W
800
800
770
Outdoor Dimension
D
H
260
555
260
555
545
288
L1
590
590
560
L2
305
305
330
10
Care and maintenance
Caution: Before performing any maintenance, turn off the main power to the system.
Indoor Unit
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.
q Never use any of the followings:
• Water hotter than 40°C
Could cause deformation and/or
discoloration.
• Volatile substances
Could damage the surfaces
of the air conditioner.
SI
Be
1
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.
N NER
n zene
SCO
U RIN G
C LB
A R GER
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.
Re-install the air filter.
3
After washing with water, dry well in the shade.
2
B
A
J
C
D
E
Indoor Unit Dimensions (mm)
G
(Unit:mm)
Dimension
A
B
C
D
E
F
G
H
I
J
Capacity(Btu/h)
18/24k Btu/h 1130 1180 383
575
93
190
21 1065 163 1100
I
F
H
Drainage hole
Drain Pump use
9
HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual.
(air filter cleaning, temperature control, etc.)
Standard Accessories
Name
Quantity
Washer for
Clamp
Insulation for
IR Receiver
Drain hose Clamp metal hanging backet (Tie Wrap)
fitting
1 EA
2 EA
8 EA
4 EA
1 SET
1 EA
Wireless
Remote
(Other)
1 EA
• Owner's manual
• Installation manual
Shape
for gas pipe
for liquid pipe
E). Insulation of the Piping & Drain
INSULATION, OTHERS
THERMAL INSULATION
Insulate the joint and tubes completely.
All thermal insulation must comply with local requirement.
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
Cabinet
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
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.
Piping material: Polyvinyl chloride pipe VP-25 and
pipe fittings
Pipe clamp
Indoor unit
Upward
routing
not allowed
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:
Feed water
Flexible drain hose
• 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.
Main
drain pipe
Drain Pump
Drain
port
Glue the joint
Drain hose connection
Use the clip
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.
Max 300mm
Hanger
distance
1~15m
Hanger Bracket
1/50~1/100 slope
Max 700mm
Metal
clamp
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
C).Filter convertible option.
Air Filter
Panel Rear
Air outlet
Panel Rear
• Low static duct type in case of suction from back
side.
Air outlet
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
B).Ceiling dimension and hanging bolt location
Installation of Unit
Install the unit above the ceiling correctly.
B
A
J
CASE 1
POSITION OF SUSPENSION BOLT
G
• Apply a joint-canvas between the unit and duct to absorb
unnecessary vibration.
C
D
E
• Apply a filter Accessory at air return hole.
(Unit:mm)
I
F
Dimension
A
B
C
D
E
F
G
H
I
J
H
Capacity(Btu/h)
18/24k Btu/h
1130 1180 383
575
93
190
21 1065 163 1100
Drainage hole
Drain Pump use
X8
M10 Nut
X4
M10 washer
X4
M10 washer
X4
M10 Nut
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
• 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.
• Select and mark the position for fixing bolts.
• Drill the hole for set anchor on the face of ceiling.
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
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.
• The place shall be able to inspect the unit as the figure.
Inspection hole
(600 x 600)
Control box
• 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.
• The place where air circulation in the room will be good .
Side view (unit: mm)
• There should not be any heat source or steam near the
unit
Confirm the positional relationship between the unit and
suspension bolts.
• Installation the ceiling opening to clean the filter or service
under the product.
H=20 or more
• Suitable dimension "H" is necessary to get a slooe
to drain as aiven in the fiaure
(Length: mm)
1100
600
18/24k
B
A
Capacity(Btu/h)
Low static Duct type
B(Min)
A(Min)
Ceiling
Service Space
A
B
[Inspection Hole Standard]
More than 100cm
1
Distance between
False ceiling & Actual ceiling
Number of
Inspection hole
2
Hole size should be
more than the size of IDU.
Remarks
Sufficient space in the ceiling for servicing.
Minimum height for motor replacement.
Less than 20cm
Insufficient space. Difficult for servicing
20cm to 100cm
4
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.
Could lead to serious injury in particular environments when operated incorrectly.
CAUTION
Could lead to death, serious injury, etc.
WARNING
• After reading this manual, be sure to keep it together with the owner's manual in an accessible
place.
WARNING
Do not install it yourself (customer).
Perform the installation securely referring to the
installation manual.
Attach the electrical part cover to the indoor unit and
the service panel to the outdoor unit securely.
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.
• 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.
• When installed in an insufficient strong place, the unit could fall
causing injured.
Perform electrical work according to the installation
manual and be sure to use an exclusive circuit.
Install the unit securely in a place which can bear the
weight of the unit.
• Incomplete installation could cause a personal injury due to
fire, electric shock, the unit falling or a leakage of water.
• 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 connecting and fixing could cause fire.
• 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.
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
• It will cause product breakdown or electric shock.
• It will cause product breakdown or malfunction
Do not touch or pull the lead wire with wet hands.
Do not press the screen using powerful pressure
or select two buttons.
• If gas leaks and accumulates in the area surrounding the unit, it
could cause an explosion.
• If there is a defect in the drainage/piping work, water
could drop from the unit and household goods could be
wet and damaged.
Do not install the unit in a place where an
inflammable gas leaks.
Perform the drainage/piping work securely
according to the installation manual.
3
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
• Level
• Screw driver
• Electric drill
• Hole core drill (ø70mm)
A)
B)
C)
D)
E)
F)
Selection of best location of indoor .....04
Ceiling dimension & Hanging blot detail........05
• Four Type “A” screws
Filter convertible option.......06
Drain piping .........................07
• Connecting cable
Insulation of the piping & drain...08
Out door unit best location & piping ....10
3. Connecting Pipes to the Indoor Unit ..................................................... 12
• Pipes: Gas side
• FlaringTools set
1) Preparation of Piping...12
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
• Screw driver
A) Circuit Breaker Detail......................16
B) Wiring diagram, wiring specification & interconnection
detail.................................. ................17
C) Outdoor Wire Routine & Pipe Routine.......19
7. Air Purging of the Connecting Pipes and the Indoor Unit.................... 21
• Hexagonal Wrench (4mm/5mm)
• Gas-leak Detector
8. Operating Instructions.................... ........................................................ 22
A) Indoor Unit, Outdoor Unit ...................... 22
B) Remote Control Preparation .. .............. 23
C) Remote Control Operations .. ............... 24
2
INSTALLATION MANUAL
AIR
CONDITIONER
Please read this installation manual completely before installing the product. Installation work
must be performed in accordance with the national wiring standards by authorized personnel
only. Please retain this installation manual for future reference after reading it thoroughly.
TYPE : LO-STATIC CEILING DUCT TYPE AIR CONDITIONER
For Single LO-Static duct models
MFL62760204
P/No. : MFL62760204_v1
CUSTOMER CARE
1800-180-3575 (Toll Free)
CALL
12 x 7 (9:00 AM – 9:00 PM)
CLICK
www.lg.com/in/support
cac.service@lgepartner.com
To know more about LG, visit www.lg.com
For Corporate/Instutional enquiries,
please write to enquiries@lgindia.com
Regd. Office : LG Electronics India Pvt. Ltd., A Wing (3rd Floor), D-3, District Center, Saket, New Delhi - 110017
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