LG ABNW54LM3S1 User manual

INSTALLATION MANUAL
Ceiling Concealed Duct
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.
www.lg.com
Copyright © 2017 - 2020 LG Electronics Inc. All Rights Reserved.
MFL67939925
Rev.03_112720
ENGLISH
FRANÇAIS

• Do not cool excessively indoors. This may be harmful for your health and may consume more
electricity.
• Block sunlight with blinds or curtains while you are operating the air conditioner.
• Keep doors or windows closed tightly while you are operating the air conditioner.
• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period of time.
• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air
conditioner is used for many hours.
• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the
air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them on a label on the side of each unit.
Dealer’s name :
Date of purchase :
Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:
TIPS FOR SAVING ENERGY
TIPS FOR SAVING ENERGY
2
ENGLISH

3
WARNING
• Installation or repairs made by unqualified persons can result in hazards to you and others.
• Installation of all field wiring and components MUST conform with local building codes or, in
the absence of local codes, with the National Electrical Code 70 and the National Building
Construction and Safety Code or Canadian Electrical code and National Building Code of
Canada.
• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
Installation
• Always perform grounding.
- Otherwise, it may cause electrical shock.
• For installation of the product, always contact the service center or a professional installation
agency.
- Otherwise, it may cause a fire, electrical shock, explosion or injury.
!
SAFETY INSTRUCTIONS
ENGLISH
WARNING
This indicates that the failure to follow the instructions can cause serious injury or death.
CAUTION
This indicates that the failure to follow the instructions can cause the minor injury or damage to
the product.
This symbol is displayed to indicate matters and operations that can cause risk.
Read the part with this symbol carefully and follow the instructions in order to avoid
risk.
!
!
!
SAFETY INSTRUCTIONS
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.

• Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit.
- If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not
attached securely, it could result in a fire or electric shock due to dust, water, etc.
• Always install an earth leakage circuit breaker and a dedicated switching board.
- No installation may cause a fire and electrical shock.
• Do not keep or use flammable gases or combustibles near the air conditioner.
- Otherwise, it may cause a fire or the failure of product.
• Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time.
- It may cause injury or an accident.
• Do not disassemble or repair the product randomly.
- It will cause a fire or electrical shock.
• Do not install the product at a place that there is concern of falling down.
- Otherwise, it may result in personal injury.
• Use caution when unpacking and installing.
- Sharp edges may cause injury.
• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress
air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion. There is
the risk of death, injury, fire or explosion.
• Consult your local dealer regarding what to do in case of refrigerant leakage.
When the air conditioner is to be installed in a small room, it is necessary to take proper measures
so that the amount of any leaked refrigerant does not exceed the concentration limit in the event of
a leakage. Otherwise, this may lead to an accident due to oxygen depletion.
• Carry out the specified installation work after taking into account earthquakes.
Failure to do so during installation work may result in the unit falling and causing accidents.
• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is
carried out by qualified personnel according to local laws and regulations and this installation manual.
An insufficient power supply capacity or improper electrical construction may lead to electric shocks or
fire.
• Be sure to switch off the unit before touching any electrical parts.
• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the
terminal connections or wires.
• If refrigerant gas leaks during installation, ventilate the area immediately.
Toxic gas may be produced if the refrigerant gas comes into contact with fire.
SAFETY INSTRUCTIONS
4
ENGLISH

SAFETY INSTRUCTIONS 5
ENGLISH
Operation
• Turn off the unit if strange sounds, smell, or smoke comes from it.
- Otherwise, it may cause electrical shock or a fire.
• Keep the flames away.
- Otherwise, it may cause a fire.
• Do not touch the power cable with wet hands when it taking out .
- Otherwise, it may cause a fire or electrical shock.
• Do not open the suction inlet of the indoor/outdoor unit during operation.
- Otherwise, it may electrical shock and failure.
• Do not allow water to run into electrical parts.
- Otherwise, it may cause the failure of machine or electrical shock.
• Never touch the metal parts of the unit when removing the filter.
- They are sharp and may cause injury.
• Do not step on the indoor/outdoor unit and do not put anything on it.
- It may cause an injury through dropping of the unit or falling down.
• When the product is submerged into water, always contact the service center.
- Otherwise, it may cause a fire or electrical shock.
• Take care so that children may not step on the outdoor unit.
- Otherwise, children may be seriously injured due to falling down.

6SAFETY INSTRUCTIONS
ENGLISH
CAUTION
Installation
• Install the drain hose to ensure that drain can be securely done.
- Otherwise, it may cause water leakage.
• Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to
the neighbors.
- Otherwise, it may cause dispute with the neighbors.
• Always inspect gas leakage after the installation and repair of product.
- Otherwise, it may cause the failure of product.
• Keep level parallel in installing the product.
- Otherwise, it may cause vibration or water leakage.
• Do not install the unit in potentially explosive atmospheres.
Operation
• Avoid excessive cooling and perform ventilation sometimes.
- Otherwise, it may do harm to your health.
• Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent.
- The appearance of the air conditioner may deteriorate, change color, or develop surface flaws.
• Do not use an appliance for special purposes such as preserving animals vegetables, precision
machine, or art articles.
- Otherwise, it may damage your properties.
• Do not place obstacles around the flow inlet or outlet.
- Otherwise, it may cause the failure of appliance or an accident.
• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box
cover are removed or opened.
!

TABLE OF CONTENTS 7
ENGLISH
2TIPS FOR SAVING ENERGY
3SAFETY INSTRUCTIONS
8INTRODUCTION
8Features
9INSTALLATION OF INDOOR
9Selection of the best location
9Installation of Unit
12 Indoor Unit Drain Piping
12 Drain test
12 Piping insulation
13 Wiring Connection
15 INSTALLATION INSTRUCTION
17 Remote controller installation
18 Group control
19 Installer Setting - How to enter installer setting mode
20 Installer Setting - Test Run Mode
21 Installer Setting - Setting Address of Central Control
22 Installer Setting - E.S.P.
23 Installer Setting - Thermistor
24 Installer Setting - Remote Controller Master/Slave Setup
25 Installer Setting - Celsius / Fahrenheit Switching
26 Installer Setting - Static Pressure Step Setting
29 DIP SWITCH SETTING
TABLE OF CONTENTS

8INTRODUCTION
ENGLISH
Features
INTRODUCTION
Air inlet vents
Air outlet
vents
Remote Controller

INSTALLATION OF INDOOR 9
Selection of 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
- Confirm the positional relationship between
the unit and suspension bolts.
- Thermal insulator the ceiling opening to clean
the filter or service under the product.
Installation of Unit
Install the unit above the ceiling correctly.
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.
CASE 1
INSTALLATION OF INDOOR
Top view
Unit: mm
Front view
Unit: mm
Front
Inspection hole
600 x 600
Control box
1 000
20 or more
Air outlet vents
Air inlet vents
600 600
(Unit:mm)
ABCDEFGHIJ
18 / 24 /30 933.4 971.6 619.2 679 35 270 4.5 857 200 900
36
1 283.4 1 321.6 619.2 679 35 270 4.5 1 206 200 1 250
48 / 50 / 54 /60
1 283.4 1 321.6 619.2 679 35 360 4.5 1 206 291 1 250
Dimension
Capacity
(kBtu/h)
ENGLISH
Drain hole
C
E
G
D
F
I
A
J
B
H

10 INSTALLATION OF INDOOR
ENGLISH
- 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.
- 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.
CASE 2
M10 Nut
M10 SP. washer
M10 washer
X 4
X 4 (Local
supply)
X 4
M10 Nut
M10 SP. washer
M10 washer
X 4
X 4 (Local
supply)
X 4
1 Set anchor
Old building New building
2 Plate washer
3 Spring washer
4 Nut
5 Suspension
bolts
CAUTION
Tighten the nut and bolt to prevent unit
falling.
!

INSTALLATION OF INDOOR 11
ENGLISH
• 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 19 mm.
Front of view
• The unit must be declined to the drain hose connected when finished installation.
Caution for gradient of unit and drain piping
Lay the drain hose with a downward inclination so water will drain out.
CAUTION
!
Drainage hole Drainage hole
CORRECT INCORRECT
1/100~1/50
Ceiling
Drainage hole
U-Trap
B
C
A ≥70 mm
B ≥2C
C ≥2 x SP
SP = External Pressure
(mmAq)
Ex) External Pressure
= 10 mmAq
A ≥70 mm
B ≥40 mm
C ≥20 mm
A
Make sure to be closed.
Unit
Drainage pipe
(Local supply)
Thermal insulator
(Local supply)
• Always lay the drain with downward
inclination (1/100 to 1/50).
Prevent any upward flow or reverse flow
in any part.
• 10 mm or thicker formed thermal insulator
shall always be provided for the drain
pipe.
• Install the P-Trap (or U-Trap) to prevent
a water leakage caused by the blocking
of intake air filter.
Applied U-Trap Dimension
CORRECT INCORRECT
• Upward routing
not allowed

12 INSTALLATION OF INDOOR
ENGLISH
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.
Piping material: Polyvinyl chloride pipe VP-25
and pipe fittings
- Be sure to execute thermal insulator on the
drain piping.
- Install the drain raising pipes at a right
angle to the indoor unit and no more than
300 mm from the unit.
Thermal insulator material: Polyethylene foam
with thickness more than 8 mm.
Drain test
- 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.
- When the test is complete, connect the
flexible drain hose to the drain port on the
indoor unit.
1Remove the air filter.
2Check the drain.
- Spray one or two glasses of water upon
the evaporator.
- Ensure that water flows drain hose of
indoor unit without any leakage.
Piping insulation
- Loosen the flare nut of the indoor unit's
piping connection port, insert it into the liquid
pipe and the gas pipe, and then conduct
flaring work on the ends of each pipe.
- Insulate each of the liquid pipes and gas
pipes using insulation material for piping.
- Use the piping insulation included in the
accessories to once again insulate the piping
connection part of the gas pipe as shown
below. (Piping insulation must be at least
19 mm thick)
Feed water
Flexible drain hose
(accessory)
Main
drain pipe
Glue the join
t
Air filters
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
Ⓐ Liquid piping
Ⓑ Gas piping
Ⓒ Power cable
Ⓓ Insulation material
Ⓔ Communication
cable
Electrical
wire
Communication
cable
Indoor unit
main body
Piping insulation
material (accessory)
Insulation material for connecting
piping (sold separately)
Band
Have them overlap.
Adhere so that there are no gaps.
Separate
Fully insulate the connection parts.

INSTALLATION OF INDOOR 13
ENGLISH
• Normal conditions: Temperature of 30 °C, relative humidity of 85 %
• Unfavorable conditions: Temperature of 30 °C, relative humidity of 90 % (humid places such as
bathrooms, swimming pools, etc.: air supply and exhaust fan installation)
Wiring Connection
- Open the control box cover and connect the Remote controller cable and Indoor power wires.
- Remove the control box cover for electrical connection between the indoor and outdoor unit.
(Remove screws ①.)
- Use the cord clamper to fix the cable.
applies to
Insulation material standard
(mm)
(besides normal conditions for
residential use)
Insulation material standard (mm) - residential Insulation material
standard (mm)
(unfavorable
conditions)
If installed in an air-conditioned
place (CASE 1)
(ex: bedroom, living room, etc.)
If installed in a non-air-
conditioned place (CASE 2)
(ex: hallway, outdoors, etc.)
Refrigerant piping
dimensions (mm) EPDM EPDM EPDM EPDM
Gas piping
6.35
9.52
12.7
15.88
19.05
22.22
25.40
28.58
31.75
38.1
44.45
19
19
19
19
19
19
19
19
19
25
25
13
13
13
13
13
13
19
19
19
19
19
19
19
19
19
19
19
19
19
19
25
25
19
25
25
25
25
32
32
32
32
32
32
Liquid
piping
6.35
9.52 9 9 9 9
12.7~44.45 13 13 13 13
<Outdoor Unit Power Supply : 3 Ø>
<Outdoor Unit Power Supply : 1 Ø>
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
POWER SUPPLY
POWER SUPPLY
1(L) 2(N) 3
1(L) 2(N) 3
1(L) 2(N) 3
1(L) 2(N)1(L) 2(N) 3
Control box
Control box cover
(On which the Electric
Wiring Connection is put)
1
1
1
Control terminal board
Remote controler cable
Connection cable between
the indoor unit and the o
utdoor unit

14 INSTALLATION OF INDOOR
ENGLISH
Precautions when laying power wiring
Use round pressure terminals for
connections to the power terminal block.
When none are available, follow the
instructions below.
• Do not connect wiring of different
thicknesses to the power terminal
block. (Slack in the power wiring may
cause abnormal heat.)
• When connecting wiring which is the
same thickness, do as shown in the
figure below.
• For wiring, use the designated power
wire and connect firmly, then secure to
prevent outside pressure being exerted
on the terminal block.
• Use an appropriate screwdriver for
tightening the terinal screws. A
screwdriver with a small head will strip
the head and make proper tighterning
impossible.
• Over-tightening the terminal screws
may break them.
CAUTION
!
• The connecting cable connected to the
indoor and outdoor unit should be
complied with the following
specifications (Rubber insulation, type
H05RN-F approved by HAR or SAA).
CAUTION
!
20 mm
GN/YL
NORMFAL
CROSS-SECTIONAL
AREA :
1 Phase Model : 0.75 mm2
3 Phase Model : 1 mm2
• If the supply cable is damaged, it must
be replaced by a special cable or
assembly available from the
manufacturer of its service agent. When
the connection line between the indoor
unit and outdooor unit and outdoor unit
is over 40 m, connect the
telecommunication line and power line
separately.
Round pressure terminal Power wiring
• Pipes and wires should be purchased
separately for installation of the product.

INSTALLATION INSTRUCTION 15
ENGLISH
INSTALLATION INSTRUCTION
1Please install the wired controller
mounting plate to the position you want
with the screws provided.
- Do not bend the mounting plate during
installation, as it may cause poor fixing.
Please install a wired controller with a
mounting box (if any) properly. (The
installation box shall be type 86)
2The connection cables of the wired
controller can be set from two directions:
- Installation direction: slotted on the wall
surface, underside.
- If install a wired control cable from the
guide slot below, please remove the slot
after installation.
* Remove the guide slot with long-nose
pliers.
①Slotted on the wall surface
②Underside guide slot
<Cable slot>

3Please fix remote controller upper part into
the backplate attached to the surface of
the wall, as the picture below, and then,
connect with backplate by pressing lower
part.
- Please make sure to leave no gaps on the
top, bottom, left or right sides between
the remote controller and backplate.
- Before assembly with the backplate,
arrange the Cable not to interfere with
circuit parts.
Remove remote controller by inserting a
screwdriver into the lower separating holes
and twisting to release the controller from
backplate.
- There are two separating holes. Please
individually separate one at a time.
- Please be careful not to damage the
inside components when separating.
4Please refer to the following directions
when connecting the indoor unit and the
wired remote controller together.
- Please connect the cables as shown in
the figure below when connecting the
plug type cable from the indoor unit’s
C/BOX and the housing type of the
extension cable.
5 Please use an extension cable if the distance
between the wired remote controller and the
indoor unit is longer than 10 m(32 ft).
16 INSTALLATION INSTRUCTION
ENGLISH
Wall
Side
Wall
Side
<Connecting order>
Please check if the connectors
are connected properly.
C/BOX Cable (Plug type)
Extension cable(housing type)
Indoor
Unit side
Wall
Side
Wall
Side
<Separating order>
Signal Yellow
12 V Red
GND Black
CAUTION
!
CAUTION
!
• Specification of LG supplied extension
cable: AWG#22, 3 core shielded.
(Model : PZCWRC1)
* Apply enclosed noncombustible
conduit(metal raceway) totally or use FT-
6 rated cable or above level in case of
local electric & building code that
requires plenum (CMP) cable usage.
• AWG#22, 3 core shielded is
recommended when using the large hole
in the center of the back plate.
• AWG#24, 3 core shielded is
recommended when using the side or
top knock-out of the back plate.
• When installing the wired remote
controller, do not bury it in the wall. (It
can cause damage in the temperature
sensor.)
• Do not install the cable to be 50 m(164 ft)
or longer. (It can cause communication
error.)

INSTALLATION INSTRUCTION 17
ENGLISH
Remote controller installation
Since the room temperature sensor is in the remote controller, the remote controller box should
be installed in a place away from direct sunlight, high humidity and direct supply of cold air to
maintain proper space temperature. Install the remote controller about 5 ft(1.5 m) above the floor
in an area with good air circulation at an average temperature.
Do not install the remote controller 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 remote controller is equipped with LCD. display. For proper display of the remote controller
LCD's, the remote controller should be installed properly as shown in Fig.1.
(The standard height is 4~5 ft (1.2~1.5 m) from floor level.)
5 ft
(1.5 m)
(Fig. 1)
Direct
Sun ray contact area
no
yes
no
no

18 INSTALLATION INSTRUCTION
ENGLISH
Group control
1When installing more than 2 units of air
conditioner to one wired remote controller,
please connect as Figure.1.
- If it is not event communication indoor
unit, set the unit as slave.
- Check for event communication through
the product manual.
When controlling multiple indoor units with
event communication function with one
remote controller, you must change the
master/slave setting from the indoor unit.
Indoor units, the master/slave
configuration of the product after
completion of indoor unit power ‘OFF’ and
then ‘ON’ the power after 1 minutes
elapsed sign up.
- For ceiling type cassette and duct product
group, change the switch setting of the
indoor PCB.
- For wall-mount type and stand type
product, change the master/slave setting
with the wireless remote controller.
(Refer to wireless remote controller
manual for detail)
* When installing 2 remote controllers to
one indoor unit with event
communication function, set the
master/slave of the remote controller.
(Refer to remote controller master/slave
selection)
When controlling the group, some
functions excluding basic operation setting,
fan level Min/Mid/Max, remote controller
lock setting and time setting may be
limited.
2When installing more than 2 wired remote
controllers to one air conditioner, please
connect as Figure.3.
- When installing more than 2 units of
wired remote controller to one air
conditioner, set one wired remote
controller as master and the others all as
slaves, as shown in the right picture.
- You cannot control the group as shown in
the right for some products.
- Refer to the product manual for more
detail.
- When controlling in groups, set the
master/slave of the remote controller.
Refer to Installer setting section on how
to set master/slave for more detail.
GND
GND
12 V
Signal wire
Signal wire
GND
12 V
B Y R B Y R
MASTER SLAVE
Signal wire GND
12 V
Signal wire
#3 switch OFF: Master
(Factory default setting)
#3 switch ON: Slave
Figure.1
Figure.2
Figure.3

INSTALLATION INSTRUCTION 19
ENGLISH
Installer Setting - How to enter installer setting mode
Installer setting mode is to set the detail function of the remote controller.
If the installer setting mode is not set correctly, it can cause problems to the product, user
injury or property damage. This must be set by an certificated installer, and any installation
or change that is carried out by a non-certificated person should be responsible for the
results. In this case, free service cannot be provided.
Function Code
Value
If you want to set installer setting mode,
Press the Temperature up button and the oper
mode button same time for five seconds.
1
When you enter the setting mode
Initially. Function code is displayed
on the LCD screen.
2
<Installer Setting Code Table>
General air-conditioner product
No. Function Code Value
1 Test Run 01 01:Set
2 Address Setting 02 00~FF : Address
<ESP Step> <ESP Value><Example>
01:VeryLow 0 ~ 255
02:Low
3 E.S.P. Value 03 03:Med
04:High
05:Very High
01:Remo
4 Thermistor 04 02:Indoor
03:2TH
01:Med
02:Low
5 Ceiling Height 05 03:High
04:Very High
01:V-H
02:F-H
6 Static Pressure 06 03:V-L
04:F-L
7 Master Setting 07 00:Slave
01:Master
8 Celsius 12 00:Celsius (Optimized only for U.S.A)
Fahrenheit Switching 01:Fahrenheit
9 Static Pressure 32 00: use static pressure (code 06) set value
Step 01~ 11: static pressure step (code 32) set value
Function Code ESP valueESP step
* Some contents may not be displayed depending on the product function
CAUTION
!

20 INSTALLATION INSTRUCTION
ENGLISH
Installer Setting - Test Run Mode
After installing the product, you must run a Test Run mode.
For details related to this operation, refer to the product manual.
When pressing the button and
button simultaneously for more than 3
seconds, the system will be entered
into the installer setting mode.
- After entering into the installer setting
mode, select the test run mode code
value by pressing the button.
* Test run mode code value : 01
1
When pressing the button, the test
operation mode will be performed, and it
is displayed as shown in the left figure.
2
When pressing the button and
button simultaneously for more than 3
seconds after the setting has been
completed, the setting mode will be
released.
- If there isn’t any button input for
more than 25 seconds, the installer
setting mode will also be released.
3
When approx. 18 minutes are elapsed
after starting of the test oper-mode, the
system will be stopped automatically
and converted to the standby state.
- If any button is inputted during the
test run mode, the test run mode will
be forced to be relreased.
4
What is the test run mode?
- This means the operation of the product under the cooling, strong wind, and Comp on state
without performing room temperature control in order to confirm the installed state during the
product installation.