LG JBNQ102L8A0 Installation guide
- Category
- Split-system air conditioners
- Type
- Installation guide
This manual is also suitable for
INSTALLATION MANUAL
AIR CONDITIONER
Before beginning installation, read these instructions
carefully. This will simplify installation and ensure that the
product is installed correctly and safely. Leave these
instructions near the product after installation for future
reference.
ENGLISH
Duct
MFL37347414
Rev.00_070423
www.lg.com
Copyright © 2023 LG Electronics Inc. All Rights Reserved.
TABLE OF CONTENTS
This manual may contain images or
content that may be different from the
model you purchased.
This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE...........................................................3
WARNING............................................................................................................3
CAUTION .............................................................................................................4
INSTALLATION
Location Selection..............................................................................................7
Indoor Unit Installation.....................................................................................9
Electrical Wiring Work .....................................................................................17
Drain Piping ......................................................................................................19
After Installation
Air Purge ...........................................................................................................25
3
SAFETY INSTRUCTIONS
ENGLISH
SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE
The following safety guidelines are intended to prevent unforeseen
risks or damage from unsafe or incorrect operation of the appliance.
The guidelines are separated into 'WARNING' and 'CAUTION' as
described below.
Safety Messages
WARNING
WARNING
• To reduce the risk of explosion, fire, death, electric shock, injury or
scalding to persons when installing this product, follow basic
precautions, including the following:
Installation
• 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.
• Perform the installation securely referring to the installation manual.
This symbol is displayed to indicate matters and operations
that can cause risk.
Read the text with this symbol carefully and follow the
instructions in order to avoid risk.
WARNING
This indicates that the failure to follow the instructions can
cause serious injuries or death.
CAUTION
This indicates that the failure to follow the instructions can
cause minor injury or damage to the appliance.
4
SAFETY INSTRUCTIONS
- 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.
- 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.
- 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 wire is not applied to the sections.
- Incomplete connecting and fixing could cause fire.
• 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.
• Check that the refrigerant gas do not leak after installation is
completed.
• Be sure to use the part provided or specified parts for the installation
work.
- The use of defective parts could cause an injury or leakage of water
due to a fire, electric shock, the unit falling, etc.
CAUTION
CAUTION
• To reduce the risk of minor injury to persons, malfunction, or damage
to the product or property when installing this product, follow basic
precautions, including the following:
5
SAFETY INSTRUCTIONS
ENGLISH
Installation
• Perform the drainage/piping work securely according to the
installation manual.
- 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.
- If gas leaks and accumulates in the area surrounding the unit, it
could cause an explosion.
6
INSTALLATION
INSTALLATION
Location Selection
Select the Best Location
• 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.
• The place where the unit shall be leveled.
• The place shall allow easy water drainage.(Suitable dimension “H” is necessary to get a slope to drain as
figure.)
• The place shall easily connect with the outdoor unit.
• The place where the unit is not affected by an electrical noise.
• The place where air circulation in the room will be good.
• There should not be any heat source or steam near the unit.
(Unit: mm)
a
Top view
b
Inspection hole (600 x 600)
c
Control box
d
Front
e
Front view
7
INSTALLATION
ENGLISH
CAUTION
• In case that the unit is installed near the sea, the installation parts may be corroded by salt, The
installation parts (and the unit) should be taken appropriate anti-corrosion measures.
Inspection Hole Standard
Outdoor Unit
• If an awning is built over the unit to prevent
direct sunlight or rain exposure, be careful that
heat radiation from the condenser is not
restricted.
• There should not be any animals or plants which
could be affected by hot air discharged.
• Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
a
Sunroof
b
Fence of obstacles
c
More than 50 cm
d
More than 100 cm
Number of inspection
hole
Distance between
False ceiling & Actual
ceiling
Remarks
1 More than 100 cm Sufficient space in the ceiling for servicing
2 20 cm to 100 cm Insufficient space. Difficult for serving
Hole size should be
more than the size of
IDU.
Less than 20 cm Minimum height for motor replacement
8
INSTALLATION
Piping Length and the Elevation
• Capacity is based on standard length and maximum allowance length is on the basis of reliability.
a
Indoor unit
b
Outdoor unit
Capacity 5.5 TR 8.5 TR 11 TR
Indoor unit (nos) 1 1 1
Outdoor unit (nos) 1 1 1
Pipe size (mm/
inch)
Gas 19.05 (3/4'') 22.22 (7/8'') 22.22 (7/8'')
Liquid 9.52 (3/8'') 9.52 (3/8'') 12.7 (1/2'')
Length A (m) Standard 7.5 7.5 7.5
Max. 50 50 50
Elevation B (m) Standard 5 5 5
Max. 30 30 30
*Additional refrigerant (g/m) 20 40 40
9
INSTALLATION
ENGLISH
Indoor Unit Installation
Ceiling Dimension and Hanging Bolt Location
a
Drainage hole
• Slope of about 5-8 mm is to be provided at the drain hole side of the indoor unit for proper drainage.
• After installation the slope can be measured using a sprit level.
Dimension (mm)
Capacity (Btu/h)
JB-Q66LRA0 JB-Q102L8A0 JB-Q132L8A0
A 129116251625
B 123015621562
C 360 491.2 491.2
D 57.5 81.4 81.4
E590688688
F303030
G130294294
H 100512201220
I232304304
A
B
CD
(G)
H
I
E
F
10
INSTALLATION
Outdoor Unit Installation
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.
a
Side
b
Rear
c
Air intake vents
d
Air outlet vents
e
Piping
f
Control cover
g
Connecting wire
h
Connecting pipe
i
Drain hose
11
INSTALLATION
ENGLISH
Indoor Unit Installation
Position of Suspension Bolt
• Apply a joint-canvas between the unit and duct
to absorb unnecessary vibration.
• Apply a filter accessory at air return hole.
• Install the unit leaning to a drainage hole side as
a figure for easy water drainage.
a
Drainage hole
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.
• Select and mark the position for fixing bolts.
a
Air intake vents
b
Air outlet vents
c
Remote
controller
d
Air filter
Model JB-
Q66LRA
0
JB-
Q102L8
A0
JB-
Q132L8
A0
Capacity 5,5 TR 8.5 TR 11 TR
IDU 1 1 1
Indoor
unit
(mm)
W 1230 1562 1562
D 590 688 688
H 380 460 460
ODU 1 1 1
Outdoo
r unit
(mm)
W 950 950 1090
D 330 330 380
H 834 1380 1625
A
B
CD
(G)
H
I
E
F
12
INSTALLATION
• Drill the hole for set anchor on the face of ceiling.
CAUTION
• Tighten the nut and bolt to prevent unit falling.
• 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.
CAUTION
• Install declination of the indoor unit is very
important for the drain of the duct type air
conditioner.
• Minimum thickness of the insulation for the
connecting pipe shall be 5 mm.
Front of View
• The unit must be horizontal or declined to the
drain hose connected when finished installation.
a
Ceiling
b
Drainage hole
Caution for Gradient of Unit and
Drain Piping
Lay the drain hose with a downward inclination so
water will drain out.
• Always lay the drain with downward inclination
(1/50 to 1/100).
Prevent any upward flow or reverse flow in any
part.
a
Old building
b
New building
c
Set anchor
d
Plate washer
e
Spring washer
f
Nut
g
Suspension bolts
(36 K - 132
K)
(198 K - 264
K)
A
Set anchor
B
Plate washer M10 M16
C
Spring washer M10 M16
D
Nut W3/8 or
M10
M16
E
Suspension bolt W3/8 or
M10
M16
(36 K - 132
K)
(198 K - 264
K)
13
INSTALLATION
ENGLISH
• 5 mm or thicker formed thermal insulator shall
always be provided for the drain pipe.
a
Unit
b
Thermal insulator (Local supply)
c
Drainage pipe (Local supply)
d
Make sure to be closed.
e
Drainage hole
A
Upward routing not allowed
• Install the P-Trap (or U-Trap) to prevent a water
leakage caused by the blocking ofi ntake air
filter.
Applied U-Trap Dimension
• Drill the piping hole with 70 mm dia, hole core
drill.
• Piping hole should be slightly slant to the
outdoor side.
a
Indoor
b
Wall
c
Outdoor
Insulation, Others
Thermal Insulation
All thermal insulation must comply with local
requirement.
Indoor unit
a
Liquid pipe
b
Refrigerant pipe and thermal insulator (Local
supply)
c
Hose crip for thermal insulator (Local supply)
d
Thermal insulator for refrigerant pipe (Local
supply)
e
Gas pipe
a
Indoor
b
Wall
c
Outdoor
14
INSTALLATION
Refrigerant Pipe
• Insulate gas side pipe
• No insulation of liquid pipe
a
Gas side
NOTE
• Filter driers, recommended to be used with the
unit, are to be fitted in the liquid line using flare
nuts, near the respective indoor units at a
position where they are accessable for serving.
• The direction of flow of the refrigerant must
match the flow direction indicator on the filter
driers.
a
Direction of the flow refrigerant
b
Liquid line (To the evaporator)
c
Filter drier
NOTE
d
Liquid line (From the condenser outlet)
Test and Check
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?
Installation of Remote Control
Box
Point of Remote Controller
Installation
• Although the room temperature sensor is in the
indoor unit, the remote control box should be
installed in such places away from direct sunlight
and high humidity.
Installation of the remote control box
• Select places that is not splashed by water.
• Select control position after receiving customer
approval.
• The room temperature sensor of the thermostat
for temperature control is built in the indoor
unit.
• This remote controller equipped with liquid
crystal display. If this position is higher or lower,
display is difficult to see. (The standard height is
1.2 ~ 1.5 m high)
Routing of the remote control cord
• Keep the remote control cord away from the
refrigerant piping and drain piping.
• To protect the remote control cord from
electrical noise, place the cord at least 5 cm away
from other power cables. (Audio equipment,
television set, etc)
• If the remote control cord is secured to a wall,
provide a trap at the top of the cord to prevent
water droplets from running.
Electrical wiring to the indoor unit
a
Remote controller
b
Main board
c
Make sure that wire and terminal numbers are
matched on unit side and remote controller
side.
15
INSTALLATION
ENGLISH
d
The maximum length of the cord is 100 m. If the
length of the cord exceeds 50 m, use a wire size
greater that 0.5 mm
2
.
Disassembling of the remote
controller
a
Front case
b
Lever carefully the box open using a screw
driver, etc.
c
Remote control box body
When the remote control box is
installed with the cord buried.
Procedure of installation
• Fix the under plate on the switch boy by screws
(Local supply). In this case, fit the under plate on
the wall, and be careful of deformation.
• Receive the remote control cord in the switch
box.
• Hook the remote control unit on the under plate.
When the remote control box is
installed with the cord exposed.
Procedure of installation
• Fix the under plate on the wall by self tapping
screws (accessory).
• Make a slit (Part A) at the top side of the remote
control box by nipper.
• Rout the cord as shown in the following figure. In
this case, push the cord into the around of case
(Part B).
• Hook the remote control unit on the under plate.
Fixing of remote control cord
• Fix the cord clamps on the wall by Ø3 tapping
screws (Local supply).
• Fix the remote control cord.
a
Cord clamp
Refrigerant Piping
• Braze the joints
a
Face of wall
b
Upper notch
c
Under plate
d
Remote control
unit
e
Screw (Local
supply)
f
Remote control
cord
g
Lower notch
h
Switch box (Local
supply)
a
Remote control
cord (Part A)
b
Remote control
unit
c
Face of wall
d
Upper notch
e
Under plate
f
Tapping screw
(Local supply)
g
Upper flange
h
Push hand (Part B)
i
Lower notch
16
INSTALLATION
• Perform air purge with R410A or vacuum drying.
• When piping work is finished, check all joints.
• Add refrigerant if piping is over 7.5 m.
- See the
Piping Length and the Elevation
.
• U-trap is to be provided for every 5 mtr. increase
in the vertical length of the pipe.
a
Factory charge gas
b
Braze the connection pipes
c
Use hard pipe
d
U-trap
e
Outdoor
f
Indoor
Installation of Outdoor Unit
• Select the following location
- A place where the air conditioner can get good
ventilation.
- A place where it shall not annoy the
neighbours.
- A place where the unit shall be leveled and
that can support the weight of unit and
withstand its vibrations.
• Keep a maintenance space.
a
About 100 cm
b
Outdoor unit
c
About 50 cm
d
Face of wall
17
INSTALLATION
ENGLISH
Electrical Wiring Work
Wiring Connection
Perform the electrical wiring work according to the
electrical wiring connection.
• 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.
a
Main power source
b
Circuit breaker
c
Switch box
d
Indoor
e
Outdoor
• Capacity of circuit breaker
Indoor unit
• Remove the control box cover for electrical
connection between the indoor and outdoor
unit. (Remove crews)
• Use the cord clamper to fix the cord.
a
Control box
b
Control terminal board
c
Cord clamper
d
Remote control cord
e
Connection cord between the indoor unit and
the outdoor unit
f
Control box cover (On which the electric wiring
connection is put)
Outdoor unit
• Remove the control cover for wiring connection.
• Use the cord clamper to fix the cord.
• Earthing work
Cpacity MCB Rating (3 phase)
5.5 TR 20 A
8.5 TR 40 A
11 TR 40 A
18
INSTALLATION
Connect the cable of diameter 1.6 mm
2
or more
to the earthing terminal provided in the control
box and do earthing.
a
Main terminal board
b
Control terminal board
c
Cover control
d
Cord clamper
19
INSTALLATION
ENGLISH
Drain Piping
Connecting Pipes to the Indoor
Unit
Preparation of Piping
Main cause of gas leakage is defect in flaring work.
Carry out correct flaring work in the following
procedure.
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 1.5 m longer than the pipe
length.
a
Copper tube
b
Slanted
c
Uneven
d
Rough
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.
a
Point down
b
Pipe
c
Reamer
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)
a
Copper tube
b
Flare nut
4
Flare work
• Carry out flaring work using flaring tool as
shown below.
a
Bar
b
Copper pipe
c
Clamp handle
d
Red arrow mark
e
Cone
f
Yoke
g
Handle
20
INSTALLATION
Firmly hold copper tube in a bar (or die) as
indicated dimension in the table above.
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.
a
Smooth all round
b
Inside is shining without scratches.
c
Even length all round
d
Improper flaring
e
Inclined
f
Surface damaged
g
Cracked
h
Uneven 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
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
file in copper piping; otherwise, the refrigerant
circuit will clog. The blowing of nitrogen gas (or
carbonic gas) through 3-way valves are
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 form 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.
a
Water enters
b
Plaster enters
CAUTION
• This procedure is designed to prevent formation
of oxidation file by filling piping with inert gas.
Outside diameter
(mm/inch) "A"
6.35 (1/4) 0 ~ 0.5
9.52 (3/8) 0.5 ~ 0.8
12.7 (1/2) 0.5 ~ 0.8
15.88 (5/8) 0.8 ~ 1.0
19.05 (3/4) 1.0 ~ 1.3
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LG JBNQ102L8A0 Installation guide
- Category
- Split-system air conditioners
- Type
- Installation guide
- This manual is also suitable for
Ask a question and I''ll find the answer in the document
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