LG UU70W INSTALLATION INSTRUCTIONS
P/NO : MFL68645302
INSTALLATION MANUAL
AIR
CONDITIONER
www.lg.com
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.
Standard inverter
Original instruction
[Representative] LG Electronics Inc. EU Representative :
LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
TIPS FOR SAVING ENERGY
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ENGLISH
TIPS FOR SAVING ENERGY
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:
• 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 :
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product
WARNING
!
It can result in serious injury or death when the directions are ignored
CAUTION
!
It can result in minor injury or product damage when the directions are ignored
WARNING
!
• Installation or repairs made by unqualified persons can result
in hazards to you and others.
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.
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• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage,
personal injury and/or death.
Installation
• Do not use a defective or underrated circuit breaker. Use this
appliance on a dedicated circuit.
- There is risk of fire or electric shock.
• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.
- Do not disassemble or repair the product. There is risk of fire
or electric shock.
• Always ground the product.
- There is risk of fire or electric shock.
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IMPORTANT SAFETY INSTRUCTIONS
• Install the panel and the cover of control box securely.
- There is risk of fire or electric shock.
• Always install a dedicated circuit and breaker.
- Improper wiring or installation may cause fire or electric
shock.
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric shock.
• Do not modify or extend the power cable.
- There is risk of fire or electric shock.
• Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open.
- Moisture may condense and wet or damage furniture.
• Be cautious when unpacking and installing the product.
- Sharp edges could cause injury. Be especially careful of the
case edges and the fins on the condenser and evaporator.
• For installation, always contact the dealer or an Authorized
Service Center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install the product on a defective installation stand.
- It may cause injury, accident, or damage to the product.
• Be sure the installation area does not deteriorate with age.
- If the base collapses, the air conditioner could fall with it,
causing property damage, product failure, and personal 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.
• Do not turn on the breaker or power under condition that front
panel, cabinet, top cover, control box cover are removed or
opened.
- Otherwise, it may cause fire, electric shock, explosion or
death.
IMPORTANT SAFETY INSTRUCTIONS
Operation
• Do not store or use flammable gas or combustibles near the
product.
- There is risk of fire or failure of product.
CAUTION
!
Installation
• Always check for gas (refrigerant) leakage after installation or
repair of product.
- Low refrigerant levels may cause failure of product.
• Install and insulate the drain hose to ensure that water is
drained away properly based on the installation manual.
- A bad connection may cause water leakage.
• Keep level even when installing the product.
- To avoid vibration or water leakage.
• Do not install the product where the noise or hot air from the
outdoor unit could damage the neighborhoods.
- It may cause a problem for your neighbors.
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• Use two or more people to lift and transport the product.
- Avoid personal injury.
• Do not install the product where it will be exposed to sea
wind (salt spray) directly.
- It may cause corrosion on the product. Corrosion, particularly
on the condenser and evaporator fins, could cause product
malfunction or inefficient operation.
• If it is installed at a place with a lot of snowfall, install with the
frame and base height higher than the most extreme snowfall
amount standard, and mount the snowfall hood (separately
sold).
TABLE OF CONTENTS
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ENGLISH
TABLE OF CONTENTS
2 TIPS FOR SAVING
ENERGY
3 IMPORTANT SAFETY
INSTRUCTIONS
7 INSTALLATION OF
OUTDOOR UNIT
11 LIFTING METHOD
12 INSTALLATION
12 The location of the Anchor bolts
13 Foundation for Installation
14 CONNECTING PIPES
14 Preparation of Piping
15
Plumbing materials and storage methods
17 REFRIGERANT PIPING
INSTALLATION
17 Precautions on Pipe connection / Valve
operation
23 WIRING CONNECTION
23 Electrical Wiring
23 Connecting Cables between Indoor Unit
and Outdoor Unit
26 Connecting the cable to Outdoor Unit
28 Forming the piping
29 LEAKAGE TEST AND
EVACUATION
29 Preparation
29 Leakage test
30 Evacuation
31 TEST RUNNING
33 SELF-DIAGNOSIS
FUNCTION
33 Error Indicator (Outdoor)
34 Dip S/W Setting (UU36/42/48WH)
36 INSTALLATION GUIDE
AT THE SEASIDE
18 PIPE CONNECTIONS
BETWEEN INDOOR AND
OUTDOOR UNIT
18 Preparation Work
19 Pipe Drawing Out
22 Thermal insulation of refrigerant pipe
INSTALLATION OF OUTDOOR UNIT
m
More than
300mm
INSTALLATION OF OUTDOOR UNIT
You need to select adequate installation location considering the following conditions, and make
sure to acquire the consent of the user.
Installation Places
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- If an awning is built over the unit to prevent
direct sunlight or rain exposure, make sure
Sunroof
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
More than
300mm
Fence or
obstacles
More than
More than
300mm
300mm
are minimum.
- Select a place so that the warm air and noise
from the air conditioner do not disturb neighbors.
More than 600m
More than 700mm
Unit : mm
- Place that can sufficiently endure the weight and vibration of the outdoor unit and where even
installation is possible.
- Place that has no direct influence of snow or rain
- Place with no danger of snowfall or icicle drop
- Place without weak floor or base such as decrepit part of the building or with a lot of snow accumulation
- Install at a place with fluent water draining to prevent damage from localized heavy rain and
avoid frequent flooded area.
Piping length and the elevation
• Single Operation
Model
Pipe Size mm(inch) Length A(m) Elevation B(m)
Gas Liquid Standard Max. Standard Max.
UU70W Ø25.4(1) 9.52(3/8) 25 75 5 30 70
Additional
refrigerant
(g/m)
If installed tube is shorter than 25 m, additional charging is not necessary.
Additional Refrigerant
= (A-25) x Additional refrigerant (g)
Indoor unit
Outdoor unit
A
B
Outdoor unit
Indoor unit
A
B
INSTALLATION OF OUTDOOR UNIT
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• Synchro Operation
Install the branch pipe so that pipe length and difference between high and low will not exceed
below Spec.
L2
L3
L4
L5
H1
Remote
Controller
L1
- 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.
• Refrigerant Additional Charging Method
For additional charging method, see below table.
A
A
Branch
Pipe Length & Height Spec(MAX.)
Total(L1+L2+L3+L4+L5)
Main Pipe(L1)
H2
Branch Pipe (L2+L3+L4+L5)
Each
Indoor-Outdoor (H1)
Indoor-Indoor (H2)
(L1+L2),(L1+L3),(L1+L4),(L1+L5)
A
[Unit : m]
80
40
40
10
30
1
70
10
Indoor Unit Refrigerant Additional charging (g)
Duo Refrigerant = (L1-b) x B + (L2 + L3) x C
Trio Refrigerant = (L1-b) x B + (L2 + L3 + L4) x C
Quartet Refrigerant = (L1-b) x B + (L2 + L3 + L4 + L5) x C
Pipe Diameter.
(mm)
Ø 6.35 35
Ø 9.52 40
C (g/m)
Model b (mm) B(g/m)
UU70W 25 70
NOTE
!
b : Rated performance for refrigerant line length.
C : Additional charging Refrigerant of Branch Liquid Pipe.
B : Additional charging Refrigerant of Main Liquid Pipe.
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.
INSTALLATION OF OUTDOOR UNIT
ODU
BD
IDU IDU
REMO
ODU
BD
IDU IDU IDU
REMO
BD
IDU IDU IDU IDU
ODU
REMO
Synchro Combination table
Possible combination of indoor units
Synchro
Duo Trio Quartet
IDU : INDOOR UNIT
ODU : OUTDOOR UNIT
BD : BRANACH DISTRIB-
UTOR UNIT
REMO : WIRED REMOTE
CONTROLLER
MODEL Cassette Duct
UU85W
BD unit PMUB11A PMUB111A PMUB1111A
Applied
Acces-
Simple central
siries
controller**
NOTE
!
UT36 NN2*2 UM36 N24*2 UV36 NK2*2 CT24 NP2*3
** 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 "PQCSZ250S0" only.
Convertible
Cassette Duct
Convertible
CM24 N14*3
CB24L N32*3
CV24 NJ2*3 CT18 NQ2*4
PQCSZ250S0
Cassette Duct
Convertible
CM18 N14*4
CB18L N22*4
CV18 NJ2*4
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INSTALLATION OF OUTDOOR UNIT
Main PCB
SW01M
DIP SW01D
A
B
LED01E
LED02E
12345678910
12345678910
12345678910
12345678910
12345678910
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Outdoor Unit PCB Setting Procedure For Simultaneous Operation System
1 DIP_SW Setting
Set the DIP_SW 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_SW correctly.
2) Turn on main power.
3) Press the SW01M for about 3 seconds within 3 minutes After main power on.(Ⓑ)
4) After step 3), the LED01E(red LED) and LED02E(green LED) rapidly flickers. When Addressing
work is done, green LED is off, else LED (LED01E) stops flickering and lights continuously. Address of indoor unit is indicated on the wired remote control display window. (CH01, CH02,
CH03, CH04)
5) Press
6) If you fail to perform the Addressing work, repeat step 2)~5).
button to turn on the indoor.
]
DIP SW01D Indoor Unit No.
1(Single)
: Default
2(Duo)
3(Trio)
4(Quartet)
LIFTING METHOD
LIFTING METHOD
- When carrying the suspended, unit pass the ropes between legs of base panel under the unit.
- Always lift the unit with ropes attached at four points so that impact is not applied to the unit.
- Attach the ropes to the unit at an angle of 40° or less.
- Use only accessories and parts which are of the designated specification when installing.
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Air outlet grille Intake hole
Always hold the unit by the corners, as holding
it by the side intake holes on the casing may
cause them to deform.
CAUTION
!
Be very careful while carrying the product.
• Do not have only one person carry product if it is more than 20 kg.
• PP bands are used to pack some products. Do not use them as a mean for transportation
because they are dangerous.
• Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in
your hands.
• Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise
plastic packaging bag may suffocate children to death.
• When carrying in Outdoor Unit, be sure to support it at four points. Carrying in and lifting
with 3-point support may make Outdoor Unit unstable, resulting in a fall.
• Use 2 belts of at least 8 m long.
• Place extra cloth or boards in the locations where the casing comes in contact with the
sling to prevent damage.
• Hoist the unit making sure it is being lifted at its center of gravity.
Corner
Handle
A
40° or less
Sub line
WARNING
INSTALLATION
At least 100mm
At least 100m
m
At least 100m
m
At least 100mm
At least 100mm
At least 100mm
Center of the Unit
For outdoor units should not
be supported only by the
corner supports.
Center of the Unit
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INSTALLATION
- Install at places where it can endure the weight and vibration/noise of the outdoor unit.
- The outdoor unit supports at the bottom shall have width of at least 100mm under the Unit’s
legs before being fixed.
- The outdoor unit supports should have minimum height of 200mm.
- Anchor bolts must be inserted at least 75mm.
The location of the Anchor bolts
920
618
330
[Unit : mm]
360
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