LG ZBNQ24GL6A1 Installation guide

LG
Brand
LG
Model
ZBNQ24GL6A1
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
MFL62760206
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............................................................................................................4
CAUTION .............................................................................................................5
INSTALLATION
Location Selection..............................................................................................8
Minimum Floor Area..........................................................................................9
Indoor Unit Installation...................................................................................12
Drain Piping ......................................................................................................19
IR Receiver ........................................................................................................25
After Installation
Air Purge ...........................................................................................................27
Operating Instructions....................................................................................27
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
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
Notes for Flammable Refrigerant
The following symbols are displayed on units.
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.
- 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.
This symbol indicates that this appliance uses a flammable
refrigerant. If the refrigerant is leaked and exposed to an
external ignition source, there is a risk of fire.
This symbol indicates that the Owner's Manual should be read
carefully.
This symbol indicates that service personnel should be handling
this equipment with reference to the Installation Manual.
This symbol indicates that information is available in the Owner's
Manual or Installation Manual.
5
SAFETY INSTRUCTIONS
ENGLISH
• 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:
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.
6
SAFETY INSTRUCTIONS
• 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.
7
INSTALLATION
ENGLISH
INSTALLATION
Location Selection
Select the Best Location
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.
• The place where the unit shall be leveled.
• 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)
Suitable dimension "H" is necessary to get a slope
to drain as as figure.
Low Static Duct Type
Confirm the positional relationship between the
unit and suspension bolts.
• Installation the ceiling opening to clean the filter
or service under the product.
a
Ceiling
b
Service Space
Inspection Hole Standard
Capacity
(Btu/h)
A (mm) B (mm)
18 600 1000
24 600 1200
Number
of
inspectio
n hole
Distance
between
False
ceiling &
Actual
ceiling
Remarks
1More
than 100
cm
Sufficient space in the
ceiling for servicing
220 cm to
100 cm
Insufficient space.
Difficult for serving
8
INSTALLATION
Accessories
Hole size
should be
more
than the
size of
IDU.
Less than
20 cm
Minimum height for
motor replacement
Name Quant
ity
Shape
Drain hose 1 EA
Clamp metal 2 EA
Washer for
hanging backet
8 EA
Clamp (Tie wrap) 4 EA
Insulation for
fitting
1 SET • For gas pipe
• For liquid pipe
IR receiver 1 EA
Number
of
inspectio
n hole
Distance
between
False
ceiling &
Actual
ceiling
Remarks
Wireless Remote 1 EA
Ohter • Owner's
manual
• Installation
manual
Name Quant
ity
Shape
9
INSTALLATION
ENGLISH
Minimum Floor Area
Required Floor Area for R32 Unit
• The appliance must be installed, operated and stored in a room with a floor area larger than the
minimum area.
• Use the graph and table to determine the minimum area.
• m : Total refrigerant amount in the system
• Total refrigerant amount : Factory refrigerant charge + Additional refrigerant amount
• A
min
: Minimum area for installation
Floor Standing Wall Mounted Ceiling Mounted
m (kg) A
min
(m
2
)m (kg) A
min
(m
2
)m (kg) A
min
(m
2
)
3
1.224 -
3
1.224 -
3
1.224 -
1.224 12.9 1.224 1.43 1.224 0.956
1.4 16.82 1.4 1.87 1.4 1.25
1.6 21.97 1.6 2.44 1.6 1.63
1.8 27.80 1.8 3.09 1.8 2.07
2 34.32 2 3.81 2 2.55
2.2 41.53 2.2 4.61 2.2 3.09
2.4 49.42 2.4 5.49 2.4 3.68
2.6 58.00 2.6 6.44 2.6 4.31
A min
10
INSTALLATION
2.8 67.27 2.8 7.47 2.8 5.00
3 77.22 3 8.58 3 5.74
3.2 87.86 3.2 9.76 3.2 6.54
3.4 99.19 3.4 11.02 3.4 7.38
3.6 111.20 3.6 12.36 3.6 8.27
3.8 123.90 3.8 13.77 3.8 9.22
4 137.29 4 15.25 4 10.21
4.2 151.36 4.2 16.82 4.2 11.26
4.4 166.12 4.4 18.46 4.4 12.36
4.6 181.56 4.6 20.17 4.6 13.50
4.8 197.70 4.8 21.97 4.8 14.70
5 214.51 5 23.83 5 15.96
5.2 232.02 5.2 25.78 5.2 17.26
5.4 250.21 5.4 27.80 5.4 18.61
5.6 269.09 5.6 29.90 5.6 20.01
5.8 288.65 5.8 32.07 5.8 21.47
6 308.90 6 34.32 6 22.98
6.2 329.84 6.2 36.65 6.2 24.53
6.4 351.46 6.4 39.05 6.4 26.14
6.6 373.77 6.6 41.53 6.6 27.80
6.8 396.76 6.8 44.08 6.8 29.51
7 420.45 7 46.72 7 31.27
7.2 444.81 7.2 49.42 7.2 33.09
7.4 469.87 7.4 52.21 7.4 34.95
7.6 495.61 7.6 55.07 7.6 36.86
7.8 522.04 7.8 58.00 7.8 38.83
Floor Standing Wall Mounted Ceiling Mounted
m (kg) A
min
(m
2
)m (kg) A
min
(m
2
)m (kg) A
min
(m
2
)
11
INSTALLATION
ENGLISH
Indoor Unit Installation
Ceiling Dimension and Hanging Bolt Location
Install the unit above the ceiling correctly.
Case 1
Apply a joint-canvas between the unit and duct to absorb unnecessary vibration.
Apply a filter accessory at air return hole.
a
Drain pump use
b
Drainage hole
Case 2
Install the unit leaning to a drainage hole side as a figure for easy water drainage.
Dimension (mm)
Capacity (Btu/h)
9/12/15/18 (L5) 24 (16)
A 933 1133
B 972 1172
C388388
D460460
E3636
F190190
G2020
H 860 1060
I148148
J 900 1100
12
INSTALLATION
• 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.
13
INSTALLATION
ENGLISH
Indoor Unit Installation
• Select and mark the position for fixing bolts.
• 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.
Part Name and Function
Low static duct type in case of
suction from back side
Low static duct type in case of
suction from bottom side
a
Air outlet
b
Air filter
c
Panel rear
Front of view
• 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.
• The unit must be horizontal or declined to the
drain hose connected when finished installation.
a
Ceiling
b
Drainage hole
c
Drain pump use
a
Old building
b
New building
c
Set anchor
d
Plate washer
e
Spring washer
f
Nut
g
Suspension bolts
14
INSTALLATION
Indoor Unit 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 32 mm.
Piing material: Polyvinyl chloride pipe inner
diometes Ø25 mm and pipe fittings.
• Be sure to install heat insulation on the drain
piping.
Heat insulation material: Polyethylene foam with
thickness more than 8 mm.
a
Pipe clamp
b
Indoor unit
c
Maintenance drain port
d
Upward routing not allowed
Drain Test
The air conditioner uses a drain pump to drain
water.
Use the following procedure to test the drain pump
operation:
• 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
operation 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
strained. A strained hose may cause leakage of
water.
• After the confirmation of the above conditions,
prepare the wiring as follows:
- 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.
- Provide a circuit breaker switch between
power source and the unit.
- 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
a
Feed water
b
Drain pump
c
Drain pan
d
Drain port
e
Flexible drain
hose (accessory)
f
Main drain pipe
g
Glue the joint
h
Drain hose connection, Use the clip.
(Accessory)
15
INSTALLATION
ENGLISH
tightly fastened. (If they are loose, it could give
rise to burn-out of the wires.)
- Specification of power source
- Confirm that electrical capacity is sufficient.
- Be sure that the starting voltage is maintained
at more than 90 percent of the rated voltage
marked on the name plate.
- Confirm that the cable thickness is as specified
in the power sources specification.
(Particularly note the relation between cable
length and thickness.)
- Never fail to equip a leakage breaker where it
is wet or moist.
- The following troubles would be caused by
voltage drop-down.
Vibration of a magnetic switch, damage on the
contact point, fuse breaking, disturbance by
the normal function of an overload protection
device.
Proper starting power is not given to the
compressor.
Hand Over
Teach the customer the operation and
maintenance procedures, using the operation
manual. (Air filter cleaning, temperature control,
etc.)
Insulation, Others
Thermal Insulation
All thermal insulation must comply with local
requirement.
Indoor unit
a
Union for liquid pipe
b
Refrigerant pipe and thermal insulator (Local
supply)
c
Hose clip for thermal insulator (Local supply)
d
Thermal insulator for refrigerant pipe (Local
supply)
e
Thermal insulator for piping (Local supply)
f
Union for gas pipe
g
Make sure that there is no clearance here.
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?
• Lock-bolt: Is the lock-bolt of compressor
loosened?
• Insulation: Is the unit fully insulated?
• Ground: Is the unit safely grounded?
16
INSTALLATION
Outdoor Unit Best Location and 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.
Outdoor unit
a
Air intake vents
b
Air outlet vents
c
Control cover
d
Connecting wire
e
Connecting pipe
Indoor unit
17
INSTALLATION
ENGLISH
Model ZB-Q18GL5A1 ZB-Q24GL6A1
Capacity 1.5 TR 2.0 TR
Indoor dimension W 900 1100
D190190
H460460
Outdoor dimension W 770 870
D288330
H545650
L1 560 586
L2 300 366
18
INSTALLATION
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 or obstacles
c
More than 50 cm
d
Mote than 100 cm
e
10 cm
Pipe length and the eleveation
• 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 18 k model is installed at a distance of 15 m,
150 g of refrigerant should be added [(15-5) x 15
g = 150 g].
a
Factory charged gas
b
Flared connection (union)
c
Use seamless pipe
d
U-Trap
e
Outdoor
f
Indoor
g
Flared connection (Service valves)
Model ZB-
Q18GL5A
1
ZB-
Q24GL6A
1
Capacity 1.5 TR 2.0 TR
Pipe size Gas 1/2 5/8
Liquid 1/4 3/8
Length (A
meter)
Standard 7.5 7.5
Max 30 50
Elevation
(B meter)
Standard 5 5
Max 20 30
Additiona
l gas
charge
R32 15 20
Model ZB-
Q18GL5A
1
ZB-
Q24GL6A
1
Capacity 1.5 TR 2.0 TR
19
INSTALLATION
ENGLISH
a
Indoor unit
b
Outdoor unit
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
20
INSTALLATION
• 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
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
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 ZBNQ24GL6A1 Installation guide

LG
Brand
LG
Model
ZBNQ24GL6A1
Category
Split-system air conditioners
Type
Installation guide
This manual is also suitable for
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