LG UU36WH User manual

P/NO : MFL40910618
www.lg.com
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 : High Efficiency Inverter
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

Single A Air Conditioner Installation Manual
CONTENTS
Safety Precautions ..............................................................................................3
Installation of Outdoor Unit................................................................................6
Wiring Connection.............................................................................................10
Connecting Pipes ..............................................................................................13
Leakage test and Evacuation ...........................................................................17
Test running .......................................................................................................19
Self-diagnosis Function....................................................................................21
Installation Guide at the Seaside .....................................................................22
2Air Conditioner

To prevent the injury of the user or other people and property damage, the following instructions
must be followed.
■Be sure to read before installing the air conditioner.
■Be sure to observe the cautions specified here as they include important items related to safety.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
■The meanings of the symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
■Installation
Be sure not to do.
Be sure to follow the instruction.
Safety Precautions
Always perform grounding.
• Otherwise, it may cause
electrical shock.
Donʼt use a power cord, a
plug or a loose socket which
is damaged.
• Otherwise, it may cause a fire
or 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.
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 air leakage
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.
Installation Manual 3
Safety Precautions
ENGLISH

4Air Conditioner
Safety Precautions
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.
Take the power plug out if
necessary, holding the head
of the plug and do not touch
it with wet hands.
• Otherwise, it may cause a fire
or electrical shock.
Do not use the power cord
near the heating tools.
• Otherwise, it may cause a fire
and 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.
Hold the plug by the head
when taking it out.
• It may cause electric shock
and damage.
Never touch the metal parts
of the unit when removing
the filter.
• They are sharp and may
cause injury.
Do not share the outlet with
other appliances.
• It will cause an electric shock
or a fire due to heat
generation.
Do not use the damaged
power cord.
• Otherwise, it may cause a fire
or electrical shock.
Do not modify or extend the
power cord randomly.
• Otherwise, it may cause a fire
or electrical shock.
Take care so that the power
cord may not be pulled
during operation.
• Otherwise, it may cause a fire
or electrical shock.
Unplug 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 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.
Do not place a heavy object on the power
cord.
• Otherwise, it may cause a fire or electrical
shock.
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.
■Operation
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.

Installation Manual 5
Safety Precautions
ENGLISH
■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.
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.
■Operation

1. Installation Places
• If an awning is built over the unit to prevent
direct sunlight or rain exposure, make sure
that heat radiation from the condenser is not
restricted.
• Ensure that the spaces indicated by arrows
around front, back and side of the unit.
• Do not place animals and plants in the path of
the warm air.
• Take the air conditioner weight into account
and select a place where noise and vibration
are minimum.
• Select a place so that the warm air and noise
from the air conditioner do not disturb
neighbors.
More than
300mm
Fence or
obstacles
More than 700mm
More than 600mm
More than
More than
300mm
300mm
More than
300mm
Sunroof
Installation of Outdoor Unit
Installation of Outdoor Unit
2. Piping length and the elevation
■Single Operation
If installed tube is shorter than 7.5 m, additional charging is not necessary.
Additional Refrigerant = (A -7.5) x Additional refrigerant (g)
6Air Conditioner
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
Unit : mm
Model Pipe Size mm(inch) Length A(m) Elevation B(m) Additional refrigerant
(g/m)
Gas Liquid Standard Max. Standard Max.
UU36WH/UU37WH
UU42WH/UU43WH
UU48WH/UU49WH
Ø15.88
(5/8)
Ø9.52
(3/8) 575 530 40

Installation of Outdoor Unit
• When installing the branch pipe, direction and angle of installation is not limited.
• Take care so that burrs and foreign material may not enter into the cutting surface when
connecting.
• Connect remaining those by cutting or direct insertion to the diameter of pipe.
■Synchro Operation
Install the branch pipe so that pipe length and difference between high and low will not exceed
below Spec.
[Unit : m]
Branch
L1
H1
A
A
L2
L3
L4
L5
H2
Remote
Controller
Pipe Length & Height
Total(L1+L2+L3+L4+L5)
Main Pipe(L1)
Branch Pipe (L2+L3+L4+L5)
Each
Indoor-Outdoor (H1)
Indoor-Indoor (H2)
(L1+L2),(L1+L3),(L1+L4),(L1+L5)
A
Spec(MAX.)
80
45
40
15
30
1
70
10
Installation Manual 7
ENGLISH
■Refrigerant Additional Charging Method
For additional charging method, see below table.
Indoor Unit Refrigerant Additional charging (g)
Duo
Trio
Quartet
Refrigerant = (L1-b) x B + (L2 + L3) x C
Refrigerant = (L1-b) x B + (L2 + L3 + L4) x C
Refrigerant = (L1-b) x B + (L2 + L3 + L4 + L5) x C
C
(g/m)
Pipe Diameter.
(mm)
Ø 6.35
Ø 9.52
35
40
b
(m)
Model
UU36WH/UU37WH
UU42WH/UU43WH
UU48WH/UU49WH
B
(g/m)
7.5 40
b : Rated performance for refrigerant line length.
C : Additional charging Refrigerant of Branch Liquid Pipe.
B : Additional charging Refrigerant of Main Liquid Pipe.
NOTICE
CAUTION:
• Capacity is based on standard length and maximum allowance length is on the
basis of reliability.
• Improper refrigerant charge may result in abnormal cycle.

** When using synchro operation,
- Do not use wireless remote controller.
- Use only one wired remote controller in the indoor units.
- Use central controller and function controller "PQCSB101S0 &PQCSC101S0" only.
NOTICE
8Air Conditioner
Installation of Outdoor Unit
3. Synchro Combination table
Possible combination of indoor units
Synchro
Duo Trio Quartet
IDU : INDOOR UNIT
ODU : OUTDOOR UNIT
BD : BRANACH
DISTRIBUTOR UNIT
REMO : WIRED REMOTE
CONTROLLER
ODU
BD
IDU IDU
REMO
ODU
BD
IDU IDU IDU
REMO
BD
IDU IDU IDU IDU
ODU
REMO
MODEL Cassette Duct Convertible Cassette Duct Convertible Cassette Duct Convertible
UU36WH/UU37WH
UU42WH/UU43WH
UU48WH/UU49WH
Applied
Accessiries
BDunit PMUB11A PMUB111A PMUB1111A
Simple central
controller** PQCSB101S0
Function
controller** PQCSC101S0
UT18H NP1*2 UB18H NG1*2 UV18H NJ1*2 UT12H NP1*3 - UV12H NJ1*3 - - -
UT21H NN1*2 UB21H NG1*2 UV21H NJ1*2 UT18H NP1*3 UB18H NG1*3 UV18H NJ1*3 UT12H NP1*4 - -
UT24H NN1*2 UB24H NG1*2 UV24H NJ1*2 UT18H NP1*3 UB18H NG1*3 UV18H NJ1*3 UT12H NP1*4 - -

Installation Manual 9
Installation of Outdoor Unit
4. Outdoor Unit PCB Setting Procedure For Simultaneous Operation System
ENGLISH
1. DIP SW2 Setting
Set the DIP SW2 as below Table (Ⓐ)
2. Auto Addressing Method
Addressing work assigns address to each
indoor unit. When firstly installing product or
replacing the indoor unit PCB. Auto
Addressing work should be done for
simultaneous operation.
❈Work procedure
1) Set DIP SW2 correctly.
2) Turn on main power.
3) Press the SW01B for about 3 seconds within
3 minutes After main power on.(Ⓑ)
4) After step 3), the LED01G(red LED) and
LED02G(green LED) rapidly flickers. When
Addressing work is done, green LED is off,
else LED (LED01G) stops flickering and
lights continuously. Address of indoor unit is
indicated on the wired remote control display
window. (CH01, CH02, CH03, CH04)
5) Press button to turn on the indoor.
6) If you fail to perform the Addressing work,
repeat step 2)~5).
DIP SW2 Indoor Unit No.
2(Duo)
1(Single)
: Default
3(Trio)
4(Quartet)
Table DIP SW2 Setting
ON
12345
00000
ON
12345
10000
ON
12345
11000
ON
12345
11100
❈1 means S/W on.
0 means S/W off.
ON
12345
SW01B LED01H
DIP SW2
A
BMAIN PCB
LED01G
LED02G
Night Silent Operation setting
1. Open the side panel of outdoor unit.
2. Set the DIP SW2.
3. Close the side panel.
ON
12345
DIP SW2
1 means S/W on.
0 means S/W off.
✽
ON
12345
00010
DIP SW2

Wiring Connection
Wiring Connection
Electrical Wiring
Outdoor
Indoor
Main
power source Switch box
ELCB
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 ELCB(Electric Leakage
Circuit Breaker) between the power source and
the unit. A disconnection device to adequately
disconnect all supply lines must be fitted.
• Model of circuit breaker recommended by
authorized personnel only
10 Air Conditioner
2(N) 3 1(L)SCN-REMO
CN-REMO
CN-REMO
Terminals on the indoor unit 4
2(N) 3 1(L)S
Terminals on the indoor unit 3
2(N) 3 1(L)S
Terminals on the indoor unit 2
2(N) 3 1(L)M
Terminals on the indoor unit 1
Terminals on the
Outdoor unit
2(N) 3 1(L)
Remote
Controller
CN-REMO
2(N) 3 1(L)
2(N) 3 1(L)
2(N) 3 1(L)
2(N) 3
4
4
4
4
5
5
5
5 1(L)
• When using simultaneous Operation System,
use only one wired remote controller
in the indoor units
Simultaneous
Operation Unit 2,3,4
Main Unit1
POWER INPUT
(380V-415V3N)
LNLN
POWER INPUT
(220V-240V~)
LN
2(N) 3 1(L)
CSTDUCT, CVT
• Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of
indoor unit respectively
Connecting Cables between Indoor Unit and Outdoor Unit
Model Phase(Ø) ELCB
UU36/42/48WH 140A
UU37/43/49WH 325A